From 1d055261b4144dbf86b2658437015b15d4dd9bff Mon Sep 17 00:00:00 2001 From: Richard Date: Sun, 4 Sep 2022 00:32:56 +0100 Subject: initial --- include/handling.h | 53 + include/jsoncons/LICENSE | 28 + include/jsoncons/allocator_holder.hpp | 38 + include/jsoncons/basic_json.hpp | 5839 ++++++++++++++++++++ include/jsoncons/bigint.hpp | 1611 ++++++ include/jsoncons/byte_string.hpp | 820 +++ include/jsoncons/config/binary_config.hpp | 226 + include/jsoncons/config/compiler_support.hpp | 389 ++ include/jsoncons/config/jsoncons_config.hpp | 308 ++ include/jsoncons/config/version.hpp | 40 + include/jsoncons/conv_error.hpp | 218 + include/jsoncons/converter.hpp | 296 + include/jsoncons/decode_json.hpp | 209 + include/jsoncons/decode_traits.hpp | 651 +++ include/jsoncons/detail/endian.hpp | 44 + include/jsoncons/detail/grisu3.hpp | 312 ++ include/jsoncons/detail/optional.hpp | 483 ++ include/jsoncons/detail/parse_number.hpp | 1133 ++++ include/jsoncons/detail/span.hpp | 188 + include/jsoncons/detail/string_view.hpp | 537 ++ include/jsoncons/detail/string_wrapper.hpp | 370 ++ include/jsoncons/detail/write_number.hpp | 567 ++ include/jsoncons/encode_json.hpp | 315 ++ include/jsoncons/encode_traits.hpp | 378 ++ include/jsoncons/json.hpp | 18 + include/jsoncons/json_array.hpp | 324 ++ include/jsoncons/json_content_handler.hpp | 12 + include/jsoncons/json_cursor.hpp | 448 ++ include/jsoncons/json_decoder.hpp | 420 ++ include/jsoncons/json_encoder.hpp | 1587 ++++++ include/jsoncons/json_error.hpp | 156 + include/jsoncons/json_exception.hpp | 241 + include/jsoncons/json_filter.hpp | 653 +++ include/jsoncons/json_fwd.hpp | 23 + include/jsoncons/json_object.hpp | 1772 ++++++ include/jsoncons/json_options.hpp | 862 +++ include/jsoncons/json_parser.hpp | 2871 ++++++++++ include/jsoncons/json_reader.hpp | 731 +++ include/jsoncons/json_traits_macros.hpp | 1072 ++++ include/jsoncons/json_traits_macros_deprecated.hpp | 144 + include/jsoncons/json_type.hpp | 206 + include/jsoncons/json_type_traits.hpp | 1829 ++++++ include/jsoncons/json_visitor.hpp | 1560 ++++++ include/jsoncons/json_visitor2.hpp | 2079 +++++++ include/jsoncons/more_type_traits.hpp | 874 +++ include/jsoncons/pretty_print.hpp | 89 + include/jsoncons/ser_context.hpp | 57 + include/jsoncons/sink.hpp | 289 + include/jsoncons/source.hpp | 777 +++ include/jsoncons/source_adaptor.hpp | 148 + include/jsoncons/staj2_cursor.hpp | 1178 ++++ include/jsoncons/staj_cursor.hpp | 1233 +++++ include/jsoncons/staj_iterator.hpp | 449 ++ include/jsoncons/tag_type.hpp | 245 + include/jsoncons/text_source_adaptor.hpp | 144 + include/jsoncons/typed_array_view.hpp | 250 + include/jsoncons/unicode_traits.hpp | 1330 +++++ include/jsoncons/uri.hpp | 635 +++ include/jsoncons_ext/LICENSE | 28 + include/jsoncons_ext/bson/bson.hpp | 23 + include/jsoncons_ext/bson/bson_cursor.hpp | 320 ++ include/jsoncons_ext/bson/bson_decimal128.hpp | 865 +++ include/jsoncons_ext/bson/bson_decimal128.hpp.bak | 816 +++ include/jsoncons_ext/bson/bson_encoder.hpp | 585 ++ include/jsoncons_ext/bson/bson_error.hpp | 103 + include/jsoncons_ext/bson/bson_oid.hpp | 245 + include/jsoncons_ext/bson/bson_options.hpp | 75 + include/jsoncons_ext/bson/bson_parser.hpp | 645 +++ include/jsoncons_ext/bson/bson_reader.hpp | 92 + include/jsoncons_ext/bson/bson_type.hpp | 44 + include/jsoncons_ext/bson/decode_bson.hpp | 201 + include/jsoncons_ext/bson/encode_bson.hpp | 144 + include/jsoncons_ext/cbor/cbor.hpp | 26 + include/jsoncons_ext/cbor/cbor_cursor.hpp | 351 ++ include/jsoncons_ext/cbor/cbor_cursor2.hpp | 265 + include/jsoncons_ext/cbor/cbor_detail.hpp | 93 + include/jsoncons_ext/cbor/cbor_encoder.hpp | 1766 ++++++ include/jsoncons_ext/cbor/cbor_error.hpp | 105 + include/jsoncons_ext/cbor/cbor_options.hpp | 113 + include/jsoncons_ext/cbor/cbor_parser.hpp | 1942 +++++++ include/jsoncons_ext/cbor/cbor_reader.hpp | 116 + include/jsoncons_ext/cbor/decode_cbor.hpp | 203 + include/jsoncons_ext/cbor/encode_cbor.hpp | 151 + include/jsoncons_ext/csv/csv.hpp | 17 + include/jsoncons_ext/csv/csv_cursor.hpp | 358 ++ include/jsoncons_ext/csv/csv_encoder.hpp | 954 ++++ include/jsoncons_ext/csv/csv_error.hpp | 85 + include/jsoncons_ext/csv/csv_options.hpp | 973 ++++ include/jsoncons_ext/csv/csv_parser.hpp | 2097 +++++++ include/jsoncons_ext/csv/csv_reader.hpp | 348 ++ include/jsoncons_ext/csv/csv_serializer.hpp | 12 + include/jsoncons_ext/csv/decode_csv.hpp | 208 + include/jsoncons_ext/csv/encode_csv.hpp | 122 + include/jsoncons_ext/jmespath/jmespath.hpp | 5215 +++++++++++++++++ include/jsoncons_ext/jmespath/jmespath_error.hpp | 215 + include/jsoncons_ext/jsonpatch/jsonpatch.hpp | 579 ++ include/jsoncons_ext/jsonpatch/jsonpatch_error.hpp | 121 + include/jsoncons_ext/jsonpath/expression.hpp | 3329 +++++++++++ include/jsoncons_ext/jsonpath/flatten.hpp | 432 ++ include/jsoncons_ext/jsonpath/json_location.hpp | 445 ++ include/jsoncons_ext/jsonpath/json_query.hpp | 115 + include/jsoncons_ext/jsonpath/jsonpath.hpp | 13 + include/jsoncons_ext/jsonpath/jsonpath_error.hpp | 240 + .../jsoncons_ext/jsonpath/jsonpath_expression.hpp | 2612 +++++++++ .../jsoncons_ext/jsonpath/jsonpath_selector.hpp | 1322 +++++ include/jsoncons_ext/jsonpointer/jsonpointer.hpp | 1577 ++++++ .../jsoncons_ext/jsonpointer/jsonpointer_error.hpp | 119 + .../jsoncons_ext/jsonschema/format_validator.hpp | 968 ++++ include/jsoncons_ext/jsonschema/json_validator.hpp | 120 + include/jsoncons_ext/jsonschema/jsonschema.hpp | 13 + .../jsoncons_ext/jsonschema/jsonschema_error.hpp | 105 + .../jsoncons_ext/jsonschema/jsonschema_version.hpp | 18 + .../jsoncons_ext/jsonschema/keyword_validator.hpp | 1745 ++++++ .../jsonschema/keyword_validator_factory.hpp | 556 ++ include/jsoncons_ext/jsonschema/schema_draft7.hpp | 198 + .../jsoncons_ext/jsonschema/schema_location.hpp | 200 + include/jsoncons_ext/jsonschema/schema_version.hpp | 35 + include/jsoncons_ext/jsonschema/subschema.hpp | 144 + include/jsoncons_ext/mergepatch/mergepatch.hpp | 103 + include/jsoncons_ext/msgpack/decode_msgpack.hpp | 202 + include/jsoncons_ext/msgpack/encode_msgpack.hpp | 142 + include/jsoncons_ext/msgpack/msgpack.hpp | 24 + include/jsoncons_ext/msgpack/msgpack_cursor.hpp | 343 ++ include/jsoncons_ext/msgpack/msgpack_cursor2.hpp | 259 + include/jsoncons_ext/msgpack/msgpack_encoder.hpp | 753 +++ include/jsoncons_ext/msgpack/msgpack_error.hpp | 94 + include/jsoncons_ext/msgpack/msgpack_options.hpp | 74 + include/jsoncons_ext/msgpack/msgpack_parser.hpp | 748 +++ include/jsoncons_ext/msgpack/msgpack_reader.hpp | 116 + include/jsoncons_ext/msgpack/msgpack_type.hpp | 63 + include/jsoncons_ext/ubjson/decode_ubjson.hpp | 201 + include/jsoncons_ext/ubjson/encode_ubjson.hpp | 142 + include/jsoncons_ext/ubjson/ubjson.hpp | 23 + include/jsoncons_ext/ubjson/ubjson_cursor.hpp | 307 + include/jsoncons_ext/ubjson/ubjson_encoder.hpp | 502 ++ include/jsoncons_ext/ubjson/ubjson_error.hpp | 100 + include/jsoncons_ext/ubjson/ubjson_options.hpp | 87 + include/jsoncons_ext/ubjson/ubjson_parser.hpp | 880 +++ include/jsoncons_ext/ubjson/ubjson_reader.hpp | 92 + include/jsoncons_ext/ubjson/ubjson_type.hpp | 43 + 140 files changed, 79984 insertions(+) create mode 100644 include/handling.h create mode 100644 include/jsoncons/LICENSE create mode 100644 include/jsoncons/allocator_holder.hpp create mode 100644 include/jsoncons/basic_json.hpp create mode 100644 include/jsoncons/bigint.hpp create mode 100644 include/jsoncons/byte_string.hpp create mode 100644 include/jsoncons/config/binary_config.hpp create mode 100644 include/jsoncons/config/compiler_support.hpp create mode 100644 include/jsoncons/config/jsoncons_config.hpp create mode 100644 include/jsoncons/config/version.hpp create mode 100644 include/jsoncons/conv_error.hpp create mode 100644 include/jsoncons/converter.hpp create mode 100644 include/jsoncons/decode_json.hpp create mode 100644 include/jsoncons/decode_traits.hpp create mode 100644 include/jsoncons/detail/endian.hpp create mode 100644 include/jsoncons/detail/grisu3.hpp create mode 100644 include/jsoncons/detail/optional.hpp create mode 100644 include/jsoncons/detail/parse_number.hpp create mode 100644 include/jsoncons/detail/span.hpp create mode 100644 include/jsoncons/detail/string_view.hpp create mode 100644 include/jsoncons/detail/string_wrapper.hpp create mode 100644 include/jsoncons/detail/write_number.hpp create mode 100644 include/jsoncons/encode_json.hpp create mode 100644 include/jsoncons/encode_traits.hpp create mode 100644 include/jsoncons/json.hpp create mode 100644 include/jsoncons/json_array.hpp create mode 100644 include/jsoncons/json_content_handler.hpp create mode 100644 include/jsoncons/json_cursor.hpp create mode 100644 include/jsoncons/json_decoder.hpp create mode 100644 include/jsoncons/json_encoder.hpp create mode 100644 include/jsoncons/json_error.hpp create mode 100644 include/jsoncons/json_exception.hpp create mode 100644 include/jsoncons/json_filter.hpp create mode 100644 include/jsoncons/json_fwd.hpp create mode 100644 include/jsoncons/json_object.hpp create mode 100644 include/jsoncons/json_options.hpp create mode 100644 include/jsoncons/json_parser.hpp create mode 100644 include/jsoncons/json_reader.hpp create mode 100644 include/jsoncons/json_traits_macros.hpp create mode 100644 include/jsoncons/json_traits_macros_deprecated.hpp create mode 100644 include/jsoncons/json_type.hpp create mode 100644 include/jsoncons/json_type_traits.hpp create mode 100644 include/jsoncons/json_visitor.hpp create mode 100644 include/jsoncons/json_visitor2.hpp create mode 100644 include/jsoncons/more_type_traits.hpp create mode 100644 include/jsoncons/pretty_print.hpp create mode 100644 include/jsoncons/ser_context.hpp create mode 100644 include/jsoncons/sink.hpp create mode 100644 include/jsoncons/source.hpp create mode 100644 include/jsoncons/source_adaptor.hpp create mode 100644 include/jsoncons/staj2_cursor.hpp create mode 100644 include/jsoncons/staj_cursor.hpp create mode 100644 include/jsoncons/staj_iterator.hpp create mode 100644 include/jsoncons/tag_type.hpp create mode 100644 include/jsoncons/text_source_adaptor.hpp create mode 100644 include/jsoncons/typed_array_view.hpp create mode 100644 include/jsoncons/unicode_traits.hpp create mode 100644 include/jsoncons/uri.hpp create mode 100644 include/jsoncons_ext/LICENSE create mode 100644 include/jsoncons_ext/bson/bson.hpp create mode 100644 include/jsoncons_ext/bson/bson_cursor.hpp create mode 100644 include/jsoncons_ext/bson/bson_decimal128.hpp create mode 100644 include/jsoncons_ext/bson/bson_decimal128.hpp.bak create mode 100644 include/jsoncons_ext/bson/bson_encoder.hpp create mode 100644 include/jsoncons_ext/bson/bson_error.hpp create mode 100644 include/jsoncons_ext/bson/bson_oid.hpp create mode 100644 include/jsoncons_ext/bson/bson_options.hpp create mode 100644 include/jsoncons_ext/bson/bson_parser.hpp create mode 100644 include/jsoncons_ext/bson/bson_reader.hpp create mode 100644 include/jsoncons_ext/bson/bson_type.hpp create mode 100644 include/jsoncons_ext/bson/decode_bson.hpp create mode 100644 include/jsoncons_ext/bson/encode_bson.hpp create mode 100644 include/jsoncons_ext/cbor/cbor.hpp create mode 100644 include/jsoncons_ext/cbor/cbor_cursor.hpp create mode 100644 include/jsoncons_ext/cbor/cbor_cursor2.hpp create mode 100644 include/jsoncons_ext/cbor/cbor_detail.hpp create mode 100644 include/jsoncons_ext/cbor/cbor_encoder.hpp create mode 100644 include/jsoncons_ext/cbor/cbor_error.hpp create mode 100644 include/jsoncons_ext/cbor/cbor_options.hpp create mode 100644 include/jsoncons_ext/cbor/cbor_parser.hpp create mode 100644 include/jsoncons_ext/cbor/cbor_reader.hpp create mode 100644 include/jsoncons_ext/cbor/decode_cbor.hpp create mode 100644 include/jsoncons_ext/cbor/encode_cbor.hpp create mode 100644 include/jsoncons_ext/csv/csv.hpp create mode 100644 include/jsoncons_ext/csv/csv_cursor.hpp create mode 100644 include/jsoncons_ext/csv/csv_encoder.hpp create mode 100644 include/jsoncons_ext/csv/csv_error.hpp create mode 100644 include/jsoncons_ext/csv/csv_options.hpp create mode 100644 include/jsoncons_ext/csv/csv_parser.hpp create mode 100644 include/jsoncons_ext/csv/csv_reader.hpp create mode 100644 include/jsoncons_ext/csv/csv_serializer.hpp create mode 100644 include/jsoncons_ext/csv/decode_csv.hpp create mode 100644 include/jsoncons_ext/csv/encode_csv.hpp create mode 100644 include/jsoncons_ext/jmespath/jmespath.hpp create mode 100644 include/jsoncons_ext/jmespath/jmespath_error.hpp create mode 100644 include/jsoncons_ext/jsonpatch/jsonpatch.hpp create mode 100644 include/jsoncons_ext/jsonpatch/jsonpatch_error.hpp create mode 100644 include/jsoncons_ext/jsonpath/expression.hpp create mode 100644 include/jsoncons_ext/jsonpath/flatten.hpp create mode 100644 include/jsoncons_ext/jsonpath/json_location.hpp create mode 100644 include/jsoncons_ext/jsonpath/json_query.hpp create mode 100644 include/jsoncons_ext/jsonpath/jsonpath.hpp create mode 100644 include/jsoncons_ext/jsonpath/jsonpath_error.hpp create mode 100644 include/jsoncons_ext/jsonpath/jsonpath_expression.hpp create mode 100644 include/jsoncons_ext/jsonpath/jsonpath_selector.hpp create mode 100644 include/jsoncons_ext/jsonpointer/jsonpointer.hpp create mode 100644 include/jsoncons_ext/jsonpointer/jsonpointer_error.hpp create mode 100644 include/jsoncons_ext/jsonschema/format_validator.hpp create mode 100644 include/jsoncons_ext/jsonschema/json_validator.hpp create mode 100644 include/jsoncons_ext/jsonschema/jsonschema.hpp create mode 100644 include/jsoncons_ext/jsonschema/jsonschema_error.hpp create mode 100644 include/jsoncons_ext/jsonschema/jsonschema_version.hpp create mode 100644 include/jsoncons_ext/jsonschema/keyword_validator.hpp create mode 100644 include/jsoncons_ext/jsonschema/keyword_validator_factory.hpp create mode 100644 include/jsoncons_ext/jsonschema/schema_draft7.hpp create mode 100644 include/jsoncons_ext/jsonschema/schema_location.hpp create mode 100644 include/jsoncons_ext/jsonschema/schema_version.hpp create mode 100644 include/jsoncons_ext/jsonschema/subschema.hpp create mode 100644 include/jsoncons_ext/mergepatch/mergepatch.hpp create mode 100644 include/jsoncons_ext/msgpack/decode_msgpack.hpp create mode 100644 include/jsoncons_ext/msgpack/encode_msgpack.hpp create mode 100644 include/jsoncons_ext/msgpack/msgpack.hpp create mode 100644 include/jsoncons_ext/msgpack/msgpack_cursor.hpp create mode 100644 include/jsoncons_ext/msgpack/msgpack_cursor2.hpp create mode 100644 include/jsoncons_ext/msgpack/msgpack_encoder.hpp create mode 100644 include/jsoncons_ext/msgpack/msgpack_error.hpp create mode 100644 include/jsoncons_ext/msgpack/msgpack_options.hpp create mode 100644 include/jsoncons_ext/msgpack/msgpack_parser.hpp create mode 100644 include/jsoncons_ext/msgpack/msgpack_reader.hpp create mode 100644 include/jsoncons_ext/msgpack/msgpack_type.hpp create mode 100644 include/jsoncons_ext/ubjson/decode_ubjson.hpp create mode 100644 include/jsoncons_ext/ubjson/encode_ubjson.hpp create mode 100644 include/jsoncons_ext/ubjson/ubjson.hpp create mode 100644 include/jsoncons_ext/ubjson/ubjson_cursor.hpp create mode 100644 include/jsoncons_ext/ubjson/ubjson_encoder.hpp create mode 100644 include/jsoncons_ext/ubjson/ubjson_error.hpp create mode 100644 include/jsoncons_ext/ubjson/ubjson_options.hpp create mode 100644 include/jsoncons_ext/ubjson/ubjson_parser.hpp create mode 100644 include/jsoncons_ext/ubjson/ubjson_reader.hpp create mode 100644 include/jsoncons_ext/ubjson/ubjson_type.hpp (limited to 'include') diff --git a/include/handling.h b/include/handling.h new file mode 100644 index 0000000..c5e0691 --- /dev/null +++ b/include/handling.h @@ -0,0 +1,53 @@ +/* + handling.h + Copyright (C) 2021 Richard Knight + + + This program is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 3 of the License, or (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + + */ +#include + +const char* handleIdentifier = "::%s%d"; + +/* + * Obtain global object of typename from global variables by handle + */ +template +T* getHandle(csnd::Csound* csound, MYFLT handle, const char* name) { + char buffer[32]; + snprintf(buffer, 32, handleIdentifier, name, (int)handle); + return (T*) csound->query_global_variable(buffer); +} + + +/* + * Create global object of typename in global variables, returning handle + */ +template +MYFLT createHandle(csnd::Csound* csound, T** data, const char* name) { + char buffer[32]; + int handle = 0; + snprintf(buffer, 32, handleIdentifier, name, handle); + while ((*data = (T*) csound->query_global_variable(buffer)) != NULL) { + snprintf(buffer, 32, handleIdentifier, name, ++handle); + } + csound->create_global_variable(buffer, sizeof(T)); + *data = (T*) csound->query_global_variable(buffer); + + return FL(handle); +} + + diff --git a/include/jsoncons/LICENSE b/include/jsoncons/LICENSE new file mode 100644 index 0000000..ecf46ab --- /dev/null +++ b/include/jsoncons/LICENSE @@ -0,0 +1,28 @@ +// Copyright Daniel Parker 2013 - 2020. +// Distributed under the Boost Software License, Version 1.0. +// (See accompanying file LICENSE or copy at +// http://www.boost.org/LICENSE_1_0.txt) + +Boost Software License - Version 1.0 - August 17th, 2003 + +Permission is hereby granted, free of charge, to any person or organization +obtaining a copy of the software and accompanying documentation covered by +this license (the "Software") to use, reproduce, display, distribute, +execute, and transmit the Software, and to prepare derivative works of the +Software, and to permit third-parties to whom the Software is furnished to +do so, all subject to the following: + +The copyright notices in the Software and this entire statement, including +the above license grant, this restriction and the following disclaimer, +must be included in all copies of the Software, in whole or in part, and +all derivative works of the Software, unless such copies or derivative +works are solely in the form of machine-executable object code generated by +a source language processor. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT +SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE +FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE, +ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER +DEALINGS IN THE SOFTWARE. diff --git a/include/jsoncons/allocator_holder.hpp b/include/jsoncons/allocator_holder.hpp new file mode 100644 index 0000000..b69fcfe --- /dev/null +++ b/include/jsoncons/allocator_holder.hpp @@ -0,0 +1,38 @@ +// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_ALLOCATOR_HOLDER_HPP +#define JSONCONS_ALLOCATOR_HOLDER_HPP + +namespace jsoncons { + +template +class allocator_holder +{ +public: + using allocator_type = Allocator; +private: + allocator_type alloc_; +public: + allocator_holder() = default; + allocator_holder(const allocator_holder&) = default; + allocator_holder(allocator_holder&&) = default; + allocator_holder& operator=(const allocator_holder&) = default; + allocator_holder& operator=(allocator_holder&&) = default; + allocator_holder(const allocator_type& alloc) + : alloc_(alloc) + {} + ~allocator_holder() = default; + + allocator_type get_allocator() const + { + return alloc_; + } +}; + +} + +#endif diff --git a/include/jsoncons/basic_json.hpp b/include/jsoncons/basic_json.hpp new file mode 100644 index 0000000..31de47b --- /dev/null +++ b/include/jsoncons/basic_json.hpp @@ -0,0 +1,5839 @@ +// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_BASIC_JSON_HPP +#define JSONCONS_BASIC_JSON_HPP + +#include // std::numeric_limits +#include +#include +#include +#include +#include +#include // std::allocator +#include +#include // std::memcpy +#include // std::swap +#include // std::initializer_list +#include // std::move +#include // std::enable_if +#include // std::basic_istream +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +namespace jsoncons { + + namespace type_traits { + + namespace detail { + + template + using + basic_json_t = basic_json; + + } // namespace detail + + template + struct is_basic_json : std::false_type {}; + + template + struct is_basic_json::type>::value>::type + > : std::true_type {}; + + } // namespace type_traits + + namespace detail { + + template + class random_access_iterator_wrapper + { + }; + + template + class random_access_iterator_wrapper::iterator_category, + std::random_access_iterator_tag>::value>::type> + { + Iterator it_; + bool has_value_; + + template + friend class random_access_iterator_wrapper; + public: + using iterator_category = std::random_access_iterator_tag; + + using value_type = typename std::iterator_traits::value_type; + using difference_type = typename std::iterator_traits::difference_type; + using pointer = typename std::iterator_traits::pointer; + using reference = typename std::iterator_traits::reference; + + random_access_iterator_wrapper() : it_(), has_value_(false) + { + } + + explicit random_access_iterator_wrapper(Iterator ptr) : it_(ptr), has_value_(true) + { + } + + random_access_iterator_wrapper(const random_access_iterator_wrapper&) = default; + random_access_iterator_wrapper(random_access_iterator_wrapper&&) = default; + random_access_iterator_wrapper& operator=(const random_access_iterator_wrapper&) = default; + random_access_iterator_wrapper& operator=(random_access_iterator_wrapper&&) = default; + + template ::value && std::is_convertible::value>::type> + random_access_iterator_wrapper(const random_access_iterator_wrapper& other) + : it_(other.it_), has_value_(other.has_value_) + { + } + + operator Iterator() const + { + return it_; + } + + reference operator*() const + { + return *it_; + } + + pointer operator->() const + { + return &(*it_); + } + + random_access_iterator_wrapper& operator++() + { + ++it_; + return *this; + } + + random_access_iterator_wrapper operator++(int) + { + random_access_iterator_wrapper temp = *this; + ++*this; + return temp; + } + + random_access_iterator_wrapper& operator--() + { + --it_; + return *this; + } + + random_access_iterator_wrapper operator--(int) + { + random_access_iterator_wrapper temp = *this; + --*this; + return temp; + } + + random_access_iterator_wrapper& operator+=(const difference_type offset) + { + it_ += offset; + return *this; + } + + random_access_iterator_wrapper operator+(const difference_type offset) const + { + random_access_iterator_wrapper temp = *this; + return temp += offset; + } + + random_access_iterator_wrapper& operator-=(const difference_type offset) + { + return *this += -offset; + } + + random_access_iterator_wrapper operator-(const difference_type offset) const + { + random_access_iterator_wrapper temp = *this; + return temp -= offset; + } + + difference_type operator-(const random_access_iterator_wrapper& rhs) const noexcept + { + return it_ - rhs.it_; + } + + reference operator[](const difference_type offset) const noexcept + { + return *(*this + offset); + } + + bool operator==(const random_access_iterator_wrapper& rhs) const noexcept + { + if (!has_value_ || !rhs.has_value_) + { + return has_value_ == rhs.has_value_ ? true : false; + } + else + { + return it_ == rhs.it_; + } + } + + bool operator!=(const random_access_iterator_wrapper& rhs) const noexcept + { + return !(*this == rhs); + } + + bool operator<(const random_access_iterator_wrapper& rhs) const noexcept + { + if (!has_value_ || !rhs.has_value_) + { + return has_value_ == rhs.has_value_ ? false :(has_value_ ? false : true); + } + else + { + return it_ < rhs.it_; + } + } + + bool operator>(const random_access_iterator_wrapper& rhs) const noexcept + { + return rhs < *this; + } + + bool operator<=(const random_access_iterator_wrapper& rhs) const noexcept + { + return !(rhs < *this); + } + + bool operator>=(const random_access_iterator_wrapper& rhs) const noexcept + { + return !(*this < rhs); + } + + inline + friend random_access_iterator_wrapper operator+( + difference_type offset, random_access_iterator_wrapper next) + { + return next += offset; + } + + bool has_value() const + { + return has_value_; + } + }; + } // namespace detail + + struct sorted_policy + { + template + using object = sorted_json_object; + + template + using array = json_array; + + using parse_error_handler_type = default_json_parsing; + }; + + struct order_preserving_policy + { + template + using object = order_preserving_json_object; + + template + using array = json_array; + + using parse_error_handler_type = default_json_parsing; + }; + + #if !defined(JSONCONS_NO_DEPRECATED) + using preserve_order_policy = order_preserving_policy; + #endif + + template + class range + { + public: + using iterator = IteratorT; + using const_iterator = ConstIteratorT; + using reverse_iterator = std::reverse_iterator; + using const_reverse_iterator = std::reverse_iterator; + private: + iterator first_; + iterator last_; + public: + range(const IteratorT& first, const IteratorT& last) + : first_(first), last_(last) + { + } + + iterator begin() + { + return first_; + } + iterator end() + { + return last_; + } + const_iterator cbegin() + { + return first_; + } + const_iterator cend() + { + return last_; + } + reverse_iterator rbegin() + { + return reverse_iterator(last_); + } + reverse_iterator rend() + { + return reverse_iterator(first_); + } + const_reverse_iterator crbegin() + { + return reverse_iterator(last_); + } + const_reverse_iterator crend() + { + return reverse_iterator(first_); + } + }; + + // is_proxy_of + + template + struct is_proxy_of : std::false_type {}; + + template + struct is_proxy_of::value>::type + > : std::true_type {}; + + + // is_proxy + + template + struct is_proxy : std::false_type {}; + + template + struct is_proxy::value>::type + > : std::true_type {}; + + template + class basic_json + { + public: + + using allocator_type = Allocator; + + using implementation_policy = ImplementationPolicy; + + using parse_error_handler_type = typename ImplementationPolicy::parse_error_handler_type; + + using char_type = CharT; + using char_traits_type = std::char_traits; + using string_view_type = jsoncons::basic_string_view; + + using char_allocator_type = typename std::allocator_traits:: template rebind_alloc; + + using key_type = std::basic_string; + + + using reference = basic_json&; + using const_reference = const basic_json&; + using pointer = basic_json*; + using const_pointer = const basic_json*; + + using key_value_type = key_value; + + #if !defined(JSONCONS_NO_DEPRECATED) + JSONCONS_DEPRECATED_MSG("no replacement") typedef basic_json value_type; + JSONCONS_DEPRECATED_MSG("no replacement") typedef std::basic_string string_type; + JSONCONS_DEPRECATED_MSG("Instead, use key_value_type") typedef key_value_type kvp_type; + JSONCONS_DEPRECATED_MSG("Instead, use key_value_type") typedef key_value_type member_type; + #endif + + using array = typename ImplementationPolicy::template array; + + using key_value_allocator_type = typename std::allocator_traits:: template rebind_alloc; + + using object = typename ImplementationPolicy::template object; + + using object_iterator = jsoncons::detail::random_access_iterator_wrapper; + using const_object_iterator = jsoncons::detail::random_access_iterator_wrapper; + using array_iterator = typename array::iterator; + using const_array_iterator = typename array::const_iterator; + + private: + + static constexpr uint8_t major_type_shift = 0x04; + static constexpr uint8_t additional_information_mask = (1U << 4) - 1; + + class common_storage final + { + public: + uint8_t storage_kind_:4; + uint8_t length_:4; + semantic_tag tag_; + }; + + class null_storage final + { + public: + uint8_t storage_kind_:4; + uint8_t length_:4; + semantic_tag tag_; + + null_storage(semantic_tag tag = semantic_tag::none) + : storage_kind_(static_cast(json_storage_kind::null_value)), length_(0), tag_(tag) + { + } + }; + + class empty_object_storage final + { + public: + uint8_t storage_kind_:4; + uint8_t length_:4; + semantic_tag tag_; + + empty_object_storage(semantic_tag tag) + : storage_kind_(static_cast(json_storage_kind::empty_object_value)), length_(0), tag_(tag) + { + } + }; + + class bool_storage final + { + public: + uint8_t storage_kind_:4; + uint8_t length_:4; + semantic_tag tag_; + private: + bool val_; + public: + bool_storage(bool val, semantic_tag tag) + : storage_kind_(static_cast(json_storage_kind::bool_value)), length_(0), tag_(tag), + val_(val) + { + } + + bool value() const + { + return val_; + } + + }; + + class int64_storage final + { + public: + uint8_t storage_kind_:4; + uint8_t length_:4; + semantic_tag tag_; + private: + int64_t val_; + public: + int64_storage(int64_t val, + semantic_tag tag = semantic_tag::none) + : storage_kind_(static_cast(json_storage_kind::int64_value)), length_(0), tag_(tag), + val_(val) + { + } + + int64_t value() const + { + return val_; + } + }; + + class uint64_storage final + { + public: + uint8_t storage_kind_:4; + uint8_t length_:4; + semantic_tag tag_; + private: + uint64_t val_; + public: + uint64_storage(uint64_t val, + semantic_tag tag = semantic_tag::none) + : storage_kind_(static_cast(json_storage_kind::uint64_value)), length_(0), tag_(tag), + val_(val) + { + } + + uint64_t value() const + { + return val_; + } + }; + + class half_storage final + { + public: + uint8_t storage_kind_:4; + uint8_t length_:4; + semantic_tag tag_; + private: + uint16_t val_; + public: + half_storage(uint16_t val, semantic_tag tag = semantic_tag::none) + : storage_kind_(static_cast(json_storage_kind::half_value)), length_(0), tag_(tag), + val_(val) + { + } + + uint16_t value() const + { + return val_; + } + }; + + class double_storage final + { + public: + uint8_t storage_kind_:4; + uint8_t length_:4; + semantic_tag tag_; + private: + double val_; + public: + double_storage(double val, + semantic_tag tag = semantic_tag::none) + : storage_kind_(static_cast(json_storage_kind::double_value)), length_(0), tag_(tag), + val_(val) + { + } + + double value() const + { + return val_; + } + }; + + class short_string_storage final + { + public: + uint8_t storage_kind_:4; + uint8_t length_:4; + semantic_tag tag_; + private: + static constexpr size_t capacity = (2*sizeof(uint64_t) - 2*sizeof(uint8_t))/sizeof(char_type); + char_type data_[capacity]; + public: + static constexpr size_t max_length = capacity - 1; + + short_string_storage(semantic_tag tag, const char_type* p, uint8_t length) + : storage_kind_(static_cast(json_storage_kind::short_string_value)), length_(length), tag_(tag) + { + JSONCONS_ASSERT(length <= max_length); + std::memcpy(data_,p,length*sizeof(char_type)); + data_[length] = 0; + } + + short_string_storage(const short_string_storage& val) + : storage_kind_(val.storage_kind_), length_(val.length_), tag_(val.tag_) + { + std::memcpy(data_,val.data_,val.length_*sizeof(char_type)); + data_[length_] = 0; + } + + short_string_storage& operator=(const short_string_storage& val) = delete; + + uint8_t length() const + { + return length_; + } + + const char_type* data() const + { + return data_; + } + + const char_type* c_str() const + { + return data_; + } + }; + + // long_string_storage + class long_string_storage final + { + public: + uint8_t storage_kind_:4; + uint8_t length_:4; + semantic_tag tag_; + private: + jsoncons::detail::string_wrapper s_; + public: + + long_string_storage(semantic_tag tag, const char_type* data, std::size_t length, const Allocator& a) + : storage_kind_(static_cast(json_storage_kind::long_string_value)), length_(0), tag_(tag), + s_(data, length, a) + { + } + + long_string_storage(const long_string_storage& val) + : storage_kind_(val.storage_kind_), length_(0), tag_(val.tag_), + s_(val.s_) + { + } + + long_string_storage(long_string_storage&& val) noexcept + : storage_kind_(val.storage_kind_), length_(0), tag_(val.tag_), + s_(nullptr) + { + swap(val); + } + + long_string_storage(const long_string_storage& val, const Allocator& a) + : storage_kind_(val.storage_kind_), length_(0), tag_(val.tag_), + s_(val.s_, a) + { + } + + ~long_string_storage() noexcept + { + } + + long_string_storage& operator=(const long_string_storage& val) = delete; + + long_string_storage& operator=(long_string_storage&& val) noexcept = delete; + + void swap(long_string_storage& val) noexcept + { + s_.swap(val.s_); + } + + const char_type* data() const + { + return s_.data(); + } + + const char_type* c_str() const + { + return s_.c_str(); + } + + std::size_t length() const + { + return s_.length(); + } + + allocator_type get_allocator() const + { + return s_.get_allocator(); + } + }; + + // byte_string_storage + class byte_string_storage final + { + public: + uint8_t storage_kind_:4; + uint8_t length_:4; + semantic_tag tag_; + private: + jsoncons::detail::tagged_string_wrapper s_; + public: + + byte_string_storage(semantic_tag tag, const uint8_t* data, std::size_t length, uint64_t ext_tag, const Allocator& alloc) + : storage_kind_(static_cast(json_storage_kind::byte_string_value)), length_(0), tag_(tag), + s_(data, length, ext_tag, alloc) + { + } + + byte_string_storage(const byte_string_storage& val) + : storage_kind_(val.storage_kind_), length_(0), tag_(val.tag_), + s_(val.s_) + { + } + + byte_string_storage(byte_string_storage&& val) noexcept + : storage_kind_(val.storage_kind_), length_(0), tag_(val.tag_), + s_(nullptr) + { + swap(val); + } + + byte_string_storage(const byte_string_storage& val, const Allocator& a) + : storage_kind_(val.storage_kind_), length_(0), tag_(val.tag_), + s_(val.s_, a) + { + } + + ~byte_string_storage() noexcept + { + } + + void swap(byte_string_storage& val) noexcept + { + s_.swap(val.s_); + } + + const uint8_t* data() const + { + return s_.data(); + } + + std::size_t length() const + { + return s_.length(); + } + + uint64_t ext_tag() const + { + return s_.tag(); + } + + allocator_type get_allocator() const + { + return s_.get_allocator(); + } + }; + + // array_storage + class array_storage final + { + public: + uint8_t storage_kind_:4; + uint8_t length_:4; + semantic_tag tag_; + private: + using array_allocator = typename std::allocator_traits:: template rebind_alloc; + using pointer = typename std::allocator_traits::pointer; + + pointer ptr_; + + template + void create(array_allocator alloc, Args&& ... args) + { + ptr_ = std::allocator_traits::allocate(alloc, 1); + JSONCONS_TRY + { + std::allocator_traits::construct(alloc, type_traits::to_plain_pointer(ptr_), std::forward(args)...); + } + JSONCONS_CATCH(...) + { + std::allocator_traits::deallocate(alloc, ptr_,1); + JSONCONS_RETHROW; + } + } + + void destroy() noexcept + { + array_allocator alloc(ptr_->get_allocator()); + std::allocator_traits::destroy(alloc, type_traits::to_plain_pointer(ptr_)); + std::allocator_traits::deallocate(alloc, ptr_,1); + } + public: + array_storage(const array& val, semantic_tag tag) + : storage_kind_(static_cast(json_storage_kind::array_value)), length_(0), tag_(tag) + { + create(val.get_allocator(), val); + } + + array_storage(array&& val, semantic_tag tag) + : storage_kind_(static_cast(json_storage_kind::array_value)), length_(0), tag_(tag) + { + create(val.get_allocator(), std::forward(val)); + } + + array_storage(const array& val, semantic_tag tag, const Allocator& a) + : storage_kind_(val.storage_kind_), length_(0), tag_(tag) + { + create(array_allocator(a), val, a); + } + + array_storage(const array_storage& val) + : storage_kind_(val.storage_kind_), length_(0), tag_(val.tag_) + { + create(val.ptr_->get_allocator(), *(val.ptr_)); + } + + array_storage(array_storage&& val) noexcept + : storage_kind_(val.storage_kind_), length_(0), tag_(val.tag_), + ptr_(nullptr) + { + std::swap(val.ptr_, ptr_); + } + + array_storage(const array_storage& val, const Allocator& a) + : storage_kind_(val.storage_kind_), length_(0), tag_(val.tag_) + { + create(array_allocator(a), *(val.ptr_), a); + } + ~array_storage() noexcept + { + if (ptr_ != nullptr) + { + destroy(); + } + } + + allocator_type get_allocator() const + { + return ptr_->get_allocator(); + } + + void swap(array_storage& val) noexcept + { + std::swap(val.ptr_,ptr_); + } + + array& value() + { + return *ptr_; + } + + const array& value() const + { + return *ptr_; + } + }; + + // object_storage + class object_storage final + { + public: + uint8_t storage_kind_:4; + uint8_t length_:4; + semantic_tag tag_; + private: + using object_allocator = typename std::allocator_traits:: template rebind_alloc; + using pointer = typename std::allocator_traits::pointer; + + pointer ptr_; + + template + void create(object_allocator alloc, Args&& ... args) + { + ptr_ = std::allocator_traits::allocate(alloc, 1); + JSONCONS_TRY + { + std::allocator_traits::construct(alloc, type_traits::to_plain_pointer(ptr_), std::forward(args)...); + } + JSONCONS_CATCH(...) + { + std::allocator_traits::deallocate(alloc, ptr_,1); + JSONCONS_RETHROW; + } + } + public: + explicit object_storage(const object& val, semantic_tag tag) + : storage_kind_(static_cast(json_storage_kind::object_value)), length_(0), tag_(tag) + { + create(val.get_allocator(), val); + } + + explicit object_storage(object&& val, semantic_tag tag) + : storage_kind_(static_cast(json_storage_kind::object_value)), length_(0), tag_(tag) + { + create(val.get_allocator(), std::forward(val)); + } + + explicit object_storage(const object& val, semantic_tag tag, const Allocator& a) + : storage_kind_(val.storage_kind_), length_(0), tag_(tag) + { + create(object_allocator(a), val, a); + } + + explicit object_storage(const object_storage& val) + : storage_kind_(val.storage_kind_), length_(0), tag_(val.tag_) + { + create(val.ptr_->get_allocator(), *(val.ptr_)); + } + + explicit object_storage(object_storage&& val) noexcept + : storage_kind_(val.storage_kind_), length_(0), tag_(val.tag_), + ptr_(nullptr) + { + std::swap(val.ptr_,ptr_); + } + + explicit object_storage(const object_storage& val, const Allocator& a) + : storage_kind_(val.storage_kind_), length_(0), tag_(val.tag_) + { + create(object_allocator(a), *(val.ptr_), a); + } + + ~object_storage() noexcept + { + if (ptr_ != nullptr) + { + destroy(); + } + } + + void swap(object_storage& val) noexcept + { + std::swap(val.ptr_,ptr_); + } + + object& value() + { + return *ptr_; + } + + const object& value() const + { + return *ptr_; + } + + allocator_type get_allocator() const + { + return ptr_->get_allocator(); + } + private: + + void destroy() noexcept + { + object_allocator alloc(ptr_->get_allocator()); + std::allocator_traits::destroy(alloc, type_traits::to_plain_pointer(ptr_)); + std::allocator_traits::deallocate(alloc, ptr_,1); + } + }; + + class json_const_pointer_storage final + { + public: + uint8_t storage_kind_:4; + uint8_t length_:4; + semantic_tag tag_; + private: + const basic_json* p_; + public: + json_const_pointer_storage(const basic_json* p) + : storage_kind_(static_cast(json_storage_kind::json_const_pointer)), length_(0), tag_(p->tag()), + p_(p) + { + } + + const basic_json* value() const + { + return p_; + } + }; + + template + class proxy + { + friend class basic_json; + + ParentType& parent_; + string_view_type key_; + + proxy() = delete; + + proxy(const proxy& other) = default; + proxy(proxy&& other) = default; + proxy& operator = (const proxy& other) = delete; + proxy& operator = (proxy&& other) = delete; + + proxy(ParentType& parent, const string_view_type& key) + : parent_(parent), key_(key) + { + } + + basic_json& evaluate_with_default() + { + basic_json& val = parent_.evaluate_with_default(); + auto it = val.find(key_); + if (it == val.object_range().end()) + { + auto r = val.try_emplace(key_, json_object_arg, semantic_tag::none, val.object_value().get_allocator()); + return r.first->value(); + } + else + { + return it->value(); + } + } + + basic_json& evaluate(std::size_t index) + { + return evaluate().at(index); + } + + const basic_json& evaluate(std::size_t index) const + { + return evaluate().at(index); + } + + basic_json& evaluate(const string_view_type& index) + { + return evaluate().at(index); + } + + const basic_json& evaluate(const string_view_type& index) const + { + return evaluate().at(index); + } + public: + using proxied_type = basic_json; + using proxy_type = proxy; + + basic_json& evaluate() + { + return parent_.evaluate(key_); + } + + const basic_json& evaluate() const + { + return parent_.evaluate(key_); + } + + operator basic_json&() + { + return evaluate(); + } + + operator const basic_json&() const + { + return evaluate(); + } + + range object_range() + { + return evaluate().object_range(); + } + + range object_range() const + { + return evaluate().object_range(); + } + + range array_range() + { + return evaluate().array_range(); + } + + range array_range() const + { + return evaluate().array_range(); + } + + std::size_t size() const noexcept + { + if (!parent_.contains(key_)) + { + return 0; + } + return evaluate().size(); + } + + json_storage_kind storage_kind() const + { + return evaluate().storage_kind(); + } + + semantic_tag tag() const + { + return evaluate().tag(); + } + + json_type type() const + { + return evaluate().type(); + } + + std::size_t count(const string_view_type& name) const + { + return evaluate().count(name); + } + + allocator_type get_allocator() const + { + return evaluate().get_allocator(); + } + + uint64_t ext_tag() const + { + return evaluate().ext_tag(); + } + + bool contains(const string_view_type& key) const noexcept + { + if (!parent_.contains(key_)) + { + return false; + } + + return evaluate().contains(key); + } + + bool is_null() const noexcept + { + if (!parent_.contains(key_)) + { + return false; + } + return evaluate().is_null(); + } + + bool empty() const noexcept + { + if (!parent_.contains(key_)) + { + return true; + } + return evaluate().empty(); + } + + std::size_t capacity() const + { + return evaluate().capacity(); + } + + void reserve(std::size_t n) + { + evaluate().reserve(n); + } + + void resize(std::size_t n) + { + evaluate().resize(n); + } + + template + void resize(std::size_t n, T val) + { + evaluate().resize(n,val); + } + + template + bool is(Args&&... args) const noexcept + { + if (!parent_.contains(key_)) + { + return false; + } + return evaluate().template is(std::forward(args)...); + } + + bool is_string() const noexcept + { + if (!parent_.contains(key_)) + { + return false; + } + return evaluate().is_string(); + } + + bool is_string_view() const noexcept + { + if (!parent_.contains(key_)) + { + return false; + } + return evaluate().is_string_view(); + } + + bool is_byte_string() const noexcept + { + if (!parent_.contains(key_)) + { + return false; + } + return evaluate().is_byte_string(); + } + + bool is_byte_string_view() const noexcept + { + if (!parent_.contains(key_)) + { + return false; + } + return evaluate().is_byte_string_view(); + } + + bool is_bignum() const noexcept + { + if (!parent_.contains(key_)) + { + return false; + } + return evaluate().is_bignum(); + } + + bool is_number() const noexcept + { + if (!parent_.contains(key_)) + { + return false; + } + return evaluate().is_number(); + } + bool is_bool() const noexcept + { + if (!parent_.contains(key_)) + { + return false; + } + return evaluate().is_bool(); + } + + bool is_object() const noexcept + { + if (!parent_.contains(key_)) + { + return false; + } + return evaluate().is_object(); + } + + bool is_array() const noexcept + { + if (!parent_.contains(key_)) + { + return false; + } + return evaluate().is_array(); + } + + bool is_int64() const noexcept + { + if (!parent_.contains(key_)) + { + return false; + } + return evaluate().is_int64(); + } + + bool is_uint64() const noexcept + { + if (!parent_.contains(key_)) + { + return false; + } + return evaluate().is_uint64(); + } + + bool is_half() const noexcept + { + if (!parent_.contains(key_)) + { + return false; + } + return evaluate().is_half(); + } + + bool is_double() const noexcept + { + if (!parent_.contains(key_)) + { + return false; + } + return evaluate().is_double(); + } + + string_view_type as_string_view() const + { + return evaluate().as_string_view(); + } + + byte_string_view as_byte_string_view() const + { + return evaluate().as_byte_string_view(); + } + + template > + std::basic_string as_string() const + { + return evaluate().as_string(); + } + + template > + std::basic_string as_string(const SAllocator& alloc) const + { + return evaluate().as_string(alloc); + } + + template > + basic_byte_string as_byte_string() const + { + return evaluate().template as_byte_string(); + } + + template + typename std::enable_if::value,T>::type + as() const + { + return evaluate().template as(); + } + + template + typename std::enable_if::value,T>::type + as(byte_string_arg_t, semantic_tag hint) const + { + return evaluate().template as(byte_string_arg, hint); + } + + bool as_bool() const + { + return evaluate().as_bool(); + } + + double as_double() const + { + return evaluate().as_double(); + } + + template + T as_integer() const + { + return evaluate().template as_integer(); + } + + template + proxy& operator=(T&& val) + { + parent_.evaluate_with_default().insert_or_assign(key_, std::forward(val)); + return *this; + } + + basic_json& operator[](std::size_t i) + { + return evaluate_with_default().at(i); + } + + const basic_json& operator[](std::size_t i) const + { + return evaluate().at(i); + } + + proxy_type operator[](const string_view_type& key) + { + return proxy_type(*this,key); + } + + const basic_json& operator[](const string_view_type& name) const + { + return at(name); + } + + basic_json& at(const string_view_type& name) + { + return evaluate().at(name); + } + + const basic_json& at(const string_view_type& name) const + { + return evaluate().at(name); + } + + const basic_json& at_or_null(const string_view_type& name) const + { + return evaluate().at_or_null(name); + } + + const basic_json& at(std::size_t index) + { + return evaluate().at(index); + } + + const basic_json& at(std::size_t index) const + { + return evaluate().at(index); + } + + object_iterator find(const string_view_type& name) + { + return evaluate().find(name); + } + + const_object_iterator find(const string_view_type& name) const + { + return evaluate().find(name); + } + + template + T get_value_or(const string_view_type& name, U&& default_value) const + { + static_assert(std::is_copy_constructible::value, + "get_value_or: T must be copy constructible"); + static_assert(std::is_convertible::value, + "get_value_or: U must be convertible to T"); + return evaluate().template get_value_or(name,std::forward(default_value)); + } + + void shrink_to_fit() + { + evaluate_with_default().shrink_to_fit(); + } + + void clear() + { + evaluate().clear(); + } + // Remove all elements from an array or object + + object_iterator erase(const_object_iterator pos) + { + return evaluate().erase(pos); + } + // Remove a range of elements from an object + + object_iterator erase(const_object_iterator first, const_object_iterator last) + { + return evaluate().erase(first, last); + } + // Remove a range of elements from an object + + void erase(const string_view_type& name) + { + evaluate().erase(name); + } + + array_iterator erase(const_array_iterator pos) + { + return evaluate().erase(pos); + } + // Removes the element at pos + + array_iterator erase(const_array_iterator first, const_array_iterator last) + { + return evaluate().erase(first, last); + } + // Remove a range of elements from an array + + // merge + + void merge(const basic_json& source) + { + return evaluate().merge(source); + } + + void merge(basic_json&& source) + { + return evaluate().merge(std::forward(source)); + } + + void merge(object_iterator hint, const basic_json& source) + { + return evaluate().merge(hint, source); + } + + void merge(object_iterator hint, basic_json&& source) + { + return evaluate().merge(hint, std::forward(source)); + } + + // merge_or_update + + void merge_or_update(const basic_json& source) + { + return evaluate().merge_or_update(source); + } + + void merge_or_update(basic_json&& source) + { + return evaluate().merge_or_update(std::forward(source)); + } + + void merge_or_update(object_iterator hint, const basic_json& source) + { + return evaluate().merge_or_update(hint, source); + } + + void merge_or_update(object_iterator hint, basic_json&& source) + { + return evaluate().merge_or_update(hint, std::forward(source)); + } + + template + std::pair insert_or_assign(const string_view_type& name, T&& val) + { + return evaluate().insert_or_assign(name,std::forward(val)); + } + + // emplace + + template + std::pair try_emplace(const string_view_type& name, Args&&... args) + { + return evaluate().try_emplace(name,std::forward(args)...); + } + + template + object_iterator insert_or_assign(object_iterator hint, const string_view_type& name, T&& val) + { + return evaluate().insert_or_assign(hint, name, std::forward(val)); + } + + template + object_iterator try_emplace(object_iterator hint, const string_view_type& name, Args&&... args) + { + return evaluate().try_emplace(hint, name, std::forward(args)...); + } + + template + array_iterator emplace(const_array_iterator pos, Args&&... args) + { + evaluate_with_default().emplace(pos, std::forward(args)...); + } + + template + basic_json& emplace_back(Args&&... args) + { + return evaluate_with_default().emplace_back(std::forward(args)...); + } + + template + void push_back(T&& val) + { + evaluate_with_default().push_back(std::forward(val)); + } + + template + array_iterator insert(const_array_iterator pos, T&& val) + { + return evaluate_with_default().insert(pos, std::forward(val)); + } + + template + array_iterator insert(const_array_iterator pos, InputIt first, InputIt last) + { + return evaluate_with_default().insert(pos, first, last); + } + + template + void insert(InputIt first, InputIt last) + { + evaluate_with_default().insert(first, last); + } + + template + void insert(sorted_unique_range_tag tag, InputIt first, InputIt last) + { + evaluate_with_default().insert(tag, first, last); + } + + template + void dump(Args&& ... args) const + { + evaluate().dump(std::forward(args)...); + } + + template + void dump_pretty(Args&& ... args) const + { + evaluate().dump_pretty(std::forward(args)...); + } + + void swap(basic_json& val) + { + evaluate_with_default().swap(val); + } + + friend std::basic_ostream& operator<<(std::basic_ostream& os, const proxy& o) + { + o.dump(os); + return os; + } + + template + T get_with_default(const string_view_type& name, const T& default_value) const + { + return evaluate().template get_with_default(name,default_value); + } + + template > + T get_with_default(const string_view_type& name, const char_type* default_value) const + { + return evaluate().template get_with_default(name,default_value); + } + + std::basic_string to_string() const + { + return evaluate().to_string(); + } + + template + bool is_integer() const noexcept + { + if (!parent_.contains(key_)) + { + return false; + } + return evaluate().template is_integer(); + } + + #if !defined(JSONCONS_NO_DEPRECATED) + + const basic_json& get_with_default(const string_view_type& name) const + { + return evaluate().at_or_null(name); + } + + JSONCONS_DEPRECATED_MSG("Instead, use tag()") + semantic_tag get_semantic_tag() const + { + return evaluate().tag(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use tag() == semantic_tag::datetime") + bool is_datetime() const noexcept + { + if (!parent_.contains(key_)) + { + return false; + } + return evaluate().tag() == semantic_tag::datetime; + } + + JSONCONS_DEPRECATED_MSG("Instead, use tag() == semantic_tag::epoch_second") + bool is_epoch_time() const noexcept + { + if (!parent_.contains(key_)) + { + return false; + } + return evaluate().tag() == semantic_tag::epoch_second; + } + + template + JSONCONS_DEPRECATED_MSG("Instead, use push_back(T&&)") + void add(T&& val) + { + evaluate_with_default().push_back(std::forward(val)); + } + + template + JSONCONS_DEPRECATED_MSG("Instead, use insert(const_array_iterator, T&&)") + array_iterator add(const_array_iterator pos, T&& val) + { + return evaluate_with_default().insert(pos, std::forward(val)); + } + + template + JSONCONS_DEPRECATED_MSG("Instead, use insert_or_assign(const string_view_type&, T&&)") + std::pair set(const string_view_type& name, T&& val) + { + return evaluate().insert_or_assign(name,std::forward(val)); + } + + template + JSONCONS_DEPRECATED_MSG("Instead, use insert_or_assign(object_iterator, const string_view_type&, T&&)") + object_iterator set(object_iterator hint, const string_view_type& name, T&& val) + { + return evaluate().insert_or_assign(hint, name, std::forward(val)); + } + + JSONCONS_DEPRECATED_MSG("Instead, use contains(const string_view_type&)") + bool has_key(const string_view_type& name) const noexcept + { + return contains(name); + } + + JSONCONS_DEPRECATED_MSG("Instead, use is()") + bool is_ulonglong() const noexcept + { + if (!parent_.contains(key_)) + { + return false; + } + return evaluate().template is(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use is()") + bool is_longlong() const noexcept + { + if (!parent_.contains(key_)) + { + return false; + } + return evaluate().template is(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use as()") + int as_int() const + { + return evaluate().template as(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use as()") + unsigned int as_uint() const + { + return evaluate().template as(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use as()") + long as_long() const + { + return evaluate().template as(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use as()") + unsigned long as_ulong() const + { + return evaluate().template as(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use as()") + long long as_longlong() const + { + return evaluate().template as(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use as()") + unsigned long long as_ulonglong() const + { + return evaluate().template as(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use as()") + uint64_t as_uinteger() const + { + return evaluate().template as(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use dump(basic_json_visitor&)") + void write(basic_json_visitor& visitor) const + { + evaluate().dump(visitor); + } + + JSONCONS_DEPRECATED_MSG("Instead, use dump(std::basic_ostream&)") + void write(std::basic_ostream& os) const + { + evaluate().dump(os); + } + + JSONCONS_DEPRECATED_MSG("Instead, use dump(std::basic_ostream&, const basic_json_encode_options&)") + void write(std::basic_ostream& os, const basic_json_encode_options& options) const + { + evaluate().dump(os, options); + } + + JSONCONS_DEPRECATED_MSG("Instead, use dump_pretty(std::basic_ostream&, const basic_json_encode_options&)") + void write(std::basic_ostream& os, const basic_json_encode_options& options, bool pprint) const + { + if (pprint) + { + evaluate().dump_pretty(os, options); + } + else + { + evaluate().dump(os, options); + } + } + JSONCONS_DEPRECATED_MSG("Instead, use dump(basic_json_visitor&)") + void to_stream(basic_json_visitor& visitor) const + { + evaluate().dump(visitor); + } + + JSONCONS_DEPRECATED_MSG("Instead, use dump(std::basic_ostream&)") + void to_stream(std::basic_ostream& os) const + { + evaluate().dump(os); + } + + JSONCONS_DEPRECATED_MSG("Instead, use dump(std::basic_ostream&, const basic_json_encode_options&)") + void to_stream(std::basic_ostream& os, const basic_json_encode_options& options) const + { + evaluate().dump(os,options); + } + + JSONCONS_DEPRECATED_MSG("Instead, use dump_pretty(std::basic_ostream&, const basic_json_encode_options&)") + void to_stream(std::basic_ostream& os, const basic_json_encode_options& options, bool pprint) const + { + if (pprint) + { + evaluate().dump_pretty(os,options); + } + else + { + evaluate().dump(os,options); + } + } + + JSONCONS_DEPRECATED_MSG("Instead, use resize(std::size_t)") + void resize_array(std::size_t n) + { + evaluate().resize(n); + } + + template + JSONCONS_DEPRECATED_MSG("Instead, use resize(std::size_t, T)") + void resize_array(std::size_t n, T val) + { + evaluate().resize(n,val); + } + + JSONCONS_DEPRECATED_MSG("Instead, use object_range()") + range members() + { + return evaluate().object_range(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use object_range()") + range members() const + { + return evaluate().object_range(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use array_range()") + range elements() + { + return evaluate().array_range(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use array_range()") + range elements() const + { + return evaluate().array_range(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use object_range().begin()") + object_iterator begin_members() + { + return evaluate().object_range().begin(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use object_range().begin()") + const_object_iterator begin_members() const + { + return evaluate().object_range().begin(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use object_range().end()") + object_iterator end_members() + { + return evaluate().object_range().end(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use object_range().end()") + const_object_iterator end_members() const + { + return evaluate().object_range().end(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use array_range().begin()") + array_iterator begin_elements() + { + return evaluate().array_range().begin(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use array_range().begin()") + const_array_iterator begin_elements() const + { + return evaluate().array_range().begin(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use array_range().end()") + array_iterator end_elements() + { + return evaluate().array_range().end(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use array_range().end()") + const_array_iterator end_elements() const + { + return evaluate().array_range().end(); + } + + template + JSONCONS_DEPRECATED_MSG("Instead, use get_with_default(const string_view_type&, T&&)") + basic_json get(const string_view_type& name, T&& default_value) const + { + return evaluate().get_with_default(name,std::forward(default_value)); + } + + JSONCONS_DEPRECATED_MSG("Instead, use at_or_null(const string_view_type&)") + const basic_json& get(const string_view_type& name) const + { + return evaluate().at_or_null(name); + } + + JSONCONS_DEPRECATED_MSG("Instead, use contains(const string_view_type&)") + bool has_member(const string_view_type& name) const noexcept + { + return contains(name); + } + + JSONCONS_DEPRECATED_MSG("Instead, use erase(const_object_iterator, const_object_iterator)") + void remove_range(std::size_t from_index, std::size_t to_index) + { + evaluate().remove_range(from_index, to_index); + } + JSONCONS_DEPRECATED_MSG("Instead, use erase(const string_view_type& name)") + void remove(const string_view_type& name) + { + evaluate().remove(name); + } + JSONCONS_DEPRECATED_MSG("Instead, use erase(const string_view_type& name)") + void remove_member(const string_view_type& name) + { + evaluate().remove(name); + } + JSONCONS_DEPRECATED_MSG("Instead, use empty()") + bool is_empty() const noexcept + { + return empty(); + } + JSONCONS_DEPRECATED_MSG("Instead, use is_number()") + bool is_numeric() const noexcept + { + if (!parent_.contains(key_)) + { + return false; + } + return is_number(); + } + #endif + }; + + using proxy_type = proxy; + + union + { + common_storage common_stor_; + null_storage null_stor_; + bool_storage bool_stor_; + int64_storage int64_stor_; + uint64_storage uint64_stor_; + half_storage half_stor_; + double_storage double_stor_; + short_string_storage short_string_stor_; + long_string_storage long_string_stor_; + byte_string_storage byte_string_stor_; + array_storage array_stor_; + object_storage object_stor_; + empty_object_storage empty_object_stor_; + json_const_pointer_storage json_const_pointer_stor_; + }; + + void Destroy_() + { + switch (storage_kind()) + { + case json_storage_kind::long_string_value: + destroy_var(); + break; + case json_storage_kind::byte_string_value: + destroy_var(); + break; + case json_storage_kind::array_value: + destroy_var(); + break; + case json_storage_kind::object_value: + destroy_var(); + break; + default: + break; + } + } + + template + void construct(Args&&... args) + { + ::new (&cast()) VariantType(std::forward(args)...); + } + + template + void destroy_var() + { + cast().~T(); + } + + template + struct identity { using type = T*; }; + + template + T& cast() + { + return cast(identity()); + } + + template + const T& cast() const + { + return cast(identity()); + } + + null_storage& cast(identity) + { + return null_stor_; + } + + const null_storage& cast(identity) const + { + return null_stor_; + } + + empty_object_storage& cast(identity) + { + return empty_object_stor_; + } + + const empty_object_storage& cast(identity) const + { + return empty_object_stor_; + } + + bool_storage& cast(identity) + { + return bool_stor_; + } + + const bool_storage& cast(identity) const + { + return bool_stor_; + } + + int64_storage& cast(identity) + { + return int64_stor_; + } + + const int64_storage& cast(identity) const + { + return int64_stor_; + } + + uint64_storage& cast(identity) + { + return uint64_stor_; + } + + const uint64_storage& cast(identity) const + { + return uint64_stor_; + } + + half_storage& cast(identity) + { + return half_stor_; + } + + const half_storage& cast(identity) const + { + return half_stor_; + } + + double_storage& cast(identity) + { + return double_stor_; + } + + const double_storage& cast(identity) const + { + return double_stor_; + } + + short_string_storage& cast(identity) + { + return short_string_stor_; + } + + const short_string_storage& cast(identity) const + { + return short_string_stor_; + } + + long_string_storage& cast(identity) + { + return long_string_stor_; + } + + const long_string_storage& cast(identity) const + { + return long_string_stor_; + } + + byte_string_storage& cast(identity) + { + return byte_string_stor_; + } + + const byte_string_storage& cast(identity) const + { + return byte_string_stor_; + } + + object_storage& cast(identity) + { + return object_stor_; + } + + const object_storage& cast(identity) const + { + return object_stor_; + } + + array_storage& cast(identity) + { + return array_stor_; + } + + const array_storage& cast(identity) const + { + return array_stor_; + } + + json_const_pointer_storage& cast(identity) + { + return json_const_pointer_stor_; + } + + const json_const_pointer_storage& cast(identity) const + { + return json_const_pointer_stor_; + } + + template + void swap_a_b(basic_json& other) + { + TypeA& curA = cast(); + TypeB& curB = other.cast(); + TypeB tmpB(std::move(curB)); + other.construct(std::move(curA)); + construct(std::move(tmpB)); + } + + template + void swap_a(basic_json& other) + { + switch (other.storage_kind()) + { + case json_storage_kind::null_value : swap_a_b(other); break; + case json_storage_kind::empty_object_value : swap_a_b(other); break; + case json_storage_kind::bool_value : swap_a_b(other); break; + case json_storage_kind::int64_value : swap_a_b(other); break; + case json_storage_kind::uint64_value : swap_a_b(other); break; + case json_storage_kind::half_value : swap_a_b(other); break; + case json_storage_kind::double_value : swap_a_b(other); break; + case json_storage_kind::short_string_value : swap_a_b(other); break; + case json_storage_kind::long_string_value : swap_a_b(other); break; + case json_storage_kind::byte_string_value : swap_a_b(other); break; + case json_storage_kind::array_value : swap_a_b(other); break; + case json_storage_kind::object_value : swap_a_b(other); break; + case json_storage_kind::json_const_pointer : swap_a_b(other); break; + default: + JSONCONS_UNREACHABLE(); + break; + } + } + + void Init_(const basic_json& val) + { + switch (val.storage_kind()) + { + case json_storage_kind::null_value: + construct(val.cast()); + break; + case json_storage_kind::empty_object_value: + construct(val.cast()); + break; + case json_storage_kind::bool_value: + construct(val.cast()); + break; + case json_storage_kind::int64_value: + construct(val.cast()); + break; + case json_storage_kind::uint64_value: + construct(val.cast()); + break; + case json_storage_kind::half_value: + construct(val.cast()); + break; + case json_storage_kind::double_value: + construct(val.cast()); + break; + case json_storage_kind::short_string_value: + construct(val.cast()); + break; + case json_storage_kind::long_string_value: + construct(val.cast()); + break; + case json_storage_kind::byte_string_value: + construct(val.cast()); + break; + case json_storage_kind::object_value: + construct(val.cast()); + break; + case json_storage_kind::array_value: + construct(val.cast()); + break; + case json_storage_kind::json_const_pointer: + construct(val.cast()); + break; + default: + break; + } + } + + void Init_(const basic_json& val, const Allocator& a) + { + switch (val.storage_kind()) + { + case json_storage_kind::null_value: + case json_storage_kind::empty_object_value: + case json_storage_kind::bool_value: + case json_storage_kind::int64_value: + case json_storage_kind::uint64_value: + case json_storage_kind::half_value: + case json_storage_kind::double_value: + case json_storage_kind::short_string_value: + case json_storage_kind::json_const_pointer: + Init_(val); + break; + case json_storage_kind::long_string_value: + construct(val.cast(),a); + break; + case json_storage_kind::byte_string_value: + construct(val.cast(),a); + break; + case json_storage_kind::array_value: + construct(val.cast(),a); + break; + case json_storage_kind::object_value: + construct(val.cast(),a); + break; + default: + break; + } + } + + void Init_rv_(basic_json&& val) noexcept + { + switch (val.storage_kind()) + { + case json_storage_kind::null_value: + case json_storage_kind::empty_object_value: + case json_storage_kind::half_value: + case json_storage_kind::double_value: + case json_storage_kind::int64_value: + case json_storage_kind::uint64_value: + case json_storage_kind::bool_value: + case json_storage_kind::short_string_value: + case json_storage_kind::json_const_pointer: + Init_(val); + break; + case json_storage_kind::long_string_value: + case json_storage_kind::byte_string_value: + case json_storage_kind::array_value: + case json_storage_kind::object_value: + { + construct(); + swap(val); + break; + } + default: + JSONCONS_UNREACHABLE(); + break; + } + } + + void Init_rv_(basic_json&& val, const Allocator&, std::true_type) noexcept + { + Init_rv_(std::forward(val)); + } + + void Init_rv_(basic_json&& val, const Allocator& a, std::false_type) noexcept + { + switch (val.storage_kind()) + { + case json_storage_kind::null_value: + case json_storage_kind::empty_object_value: + case json_storage_kind::half_value: + case json_storage_kind::double_value: + case json_storage_kind::int64_value: + case json_storage_kind::uint64_value: + case json_storage_kind::bool_value: + case json_storage_kind::short_string_value: + case json_storage_kind::json_const_pointer: + Init_(std::forward(val)); + break; + case json_storage_kind::long_string_value: + { + if (a == val.cast().get_allocator()) + { + Init_rv_(std::forward(val), a, std::true_type()); + } + else + { + Init_(val,a); + } + break; + } + case json_storage_kind::byte_string_value: + { + if (a == val.cast().get_allocator()) + { + Init_rv_(std::forward(val), a, std::true_type()); + } + else + { + Init_(val,a); + } + break; + } + case json_storage_kind::object_value: + { + if (a == val.cast().get_allocator()) + { + Init_rv_(std::forward(val), a, std::true_type()); + } + else + { + Init_(val,a); + } + break; + } + case json_storage_kind::array_value: + { + if (a == val.cast().get_allocator()) + { + Init_rv_(std::forward(val), a, std::true_type()); + } + else + { + Init_(val,a); + } + break; + } + default: + break; + } + } + + basic_json& evaluate_with_default() + { + return *this; + } + + basic_json& evaluate(const string_view_type& name) + { + return at(name); + } + + const basic_json& evaluate(const string_view_type& name) const + { + return at(name); + } + + public: + + basic_json& evaluate() + { + return *this; + } + + const basic_json& evaluate() const + { + return *this; + } + + basic_json& operator=(const basic_json& val) + { + if (this != &val) + { + Destroy_(); + Init_(val); + } + return *this; + } + + basic_json& operator=(basic_json&& val) noexcept + { + if (this !=&val) + { + swap(val); + } + return *this; + } + + json_storage_kind storage_kind() const + { + // It is legal to access 'common_stor_.storage_kind_' even though + // common_stor_ is not the active member of the union because 'storage_kind_' + // is a part of the common initial sequence of all union members + // as defined in 11.4-25 of the Standard. + return static_cast(common_stor_.storage_kind_); + } + + json_type type() const + { + switch(storage_kind()) + { + case json_storage_kind::null_value: + return json_type::null_value; + case json_storage_kind::bool_value: + return json_type::bool_value; + case json_storage_kind::int64_value: + return json_type::int64_value; + case json_storage_kind::uint64_value: + return json_type::uint64_value; + case json_storage_kind::half_value: + return json_type::half_value; + case json_storage_kind::double_value: + return json_type::double_value; + case json_storage_kind::short_string_value: + case json_storage_kind::long_string_value: + return json_type::string_value; + case json_storage_kind::byte_string_value: + return json_type::byte_string_value; + case json_storage_kind::array_value: + return json_type::array_value; + case json_storage_kind::empty_object_value: + case json_storage_kind::object_value: + return json_type::object_value; + case json_storage_kind::json_const_pointer: + return cast().value()->type(); + default: + JSONCONS_UNREACHABLE(); + break; + } + } + + semantic_tag tag() const + { + // It is legal to access 'common_stor_.tag_' even though + // common_stor_ is not the active member of the union because 'tag_' + // is a part of the common initial sequence of all union members + // as defined in 11.4-25 of the Standard. + switch(storage_kind()) + { + case json_storage_kind::json_const_pointer: + return cast().value()->tag(); + default: + return common_stor_.tag_; + } + } + + std::size_t size() const + { + switch (storage_kind()) + { + case json_storage_kind::array_value: + return cast().value().size(); + case json_storage_kind::empty_object_value: + return 0; + case json_storage_kind::object_value: + return cast().value().size(); + case json_storage_kind::json_const_pointer: + return cast().value()->size(); + default: + return 0; + } + } + + string_view_type as_string_view() const + { + switch (storage_kind()) + { + case json_storage_kind::short_string_value: + return string_view_type(cast().data(),cast().length()); + case json_storage_kind::long_string_value: + return string_view_type(cast().data(),cast().length()); + case json_storage_kind::json_const_pointer: + return cast().value()->as_string_view(); + default: + JSONCONS_THROW(json_runtime_error("Not a string")); + } + } + + template > + basic_byte_string as_byte_string() const + { + using byte_string_type = basic_byte_string; + converter convert; + std::error_code ec; + + switch (storage_kind()) + { + case json_storage_kind::short_string_value: + case json_storage_kind::long_string_value: + { + byte_string_type v = convert.from(as_string_view(),tag(),ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec)); + } + return v; + } + case json_storage_kind::byte_string_value: + return basic_byte_string(cast().data(),cast().length()); + case json_storage_kind::json_const_pointer: + return cast().value()->as_byte_string(); + default: + JSONCONS_THROW(json_runtime_error("Not a byte string")); + } + } + + byte_string_view as_byte_string_view() const + { + switch (storage_kind()) + { + case json_storage_kind::byte_string_value: + return byte_string_view(cast().data(),cast().length()); + case json_storage_kind::json_const_pointer: + return cast().value()->as_byte_string_view(); + default: + JSONCONS_THROW(json_runtime_error("Not a byte string")); + } + } + + int compare(const basic_json& rhs) const noexcept + { + if (this == &rhs) + { + return 0; + } + switch (storage_kind()) + { + case json_storage_kind::json_const_pointer: + switch (rhs.storage_kind()) + { + case json_storage_kind::json_const_pointer: + return (cast().value())->compare(*(rhs.cast().value())); + default: + return (cast().value())->compare(rhs); + } + break; + case json_storage_kind::null_value: + return static_cast(storage_kind()) - static_cast((int)rhs.storage_kind()); + case json_storage_kind::empty_object_value: + switch (rhs.storage_kind()) + { + case json_storage_kind::empty_object_value: + return 0; + case json_storage_kind::object_value: + return rhs.empty() ? 0 : -1; + case json_storage_kind::json_const_pointer: + return compare(*(rhs.cast().value())); + default: + return static_cast(storage_kind()) - static_cast((int)rhs.storage_kind()); + } + break; + case json_storage_kind::bool_value: + switch (rhs.storage_kind()) + { + case json_storage_kind::bool_value: + return static_cast(cast().value()) - static_cast(rhs.cast().value()); + case json_storage_kind::json_const_pointer: + return compare(*(rhs.cast().value())); + default: + return static_cast(storage_kind()) - static_cast((int)rhs.storage_kind()); + } + break; + case json_storage_kind::int64_value: + switch (rhs.storage_kind()) + { + case json_storage_kind::int64_value: + { + if (cast().value() == rhs.cast().value()) + return 0; + return cast().value() < rhs.cast().value() ? -1 : 1; + } + case json_storage_kind::uint64_value: + if (cast().value() < 0) + return -1; + else if (static_cast(cast().value()) == rhs.cast().value()) + return 0; + else + return static_cast(cast().value()) < rhs.cast().value() ? -1 : 1; + case json_storage_kind::double_value: + { + double r = static_cast(cast().value()) - rhs.cast().value(); + return r == 0.0 ? 0 : (r < 0.0 ? -1 : 1); + } + case json_storage_kind::json_const_pointer: + return compare(*(rhs.cast().value())); + default: + return static_cast(storage_kind()) - static_cast((int)rhs.storage_kind()); + } + break; + case json_storage_kind::uint64_value: + switch (rhs.storage_kind()) + { + case json_storage_kind::int64_value: + if (rhs.cast().value() < 0) + return 1; + else if (cast().value() == static_cast(rhs.cast().value())) + return 0; + else + return cast().value() < static_cast(rhs.cast().value()) ? -1 : 1; + case json_storage_kind::uint64_value: + if (cast().value() == static_cast(rhs.cast().value())) + return 0; + else + return cast().value() < static_cast(rhs.cast().value()) ? -1 : 1; + case json_storage_kind::double_value: + { + auto r = static_cast(cast().value()) - rhs.cast().value(); + return r == 0 ? 0 : (r < 0.0 ? -1 : 1); + } + case json_storage_kind::json_const_pointer: + return compare(*(rhs.cast().value())); + default: + return static_cast(storage_kind()) - static_cast((int)rhs.storage_kind()); + } + break; + case json_storage_kind::double_value: + switch (rhs.storage_kind()) + { + case json_storage_kind::int64_value: + { + auto r = cast().value() - static_cast(rhs.cast().value()); + return r == 0 ? 0 : (r < 0.0 ? -1 : 1); + } + case json_storage_kind::uint64_value: + { + auto r = cast().value() - static_cast(rhs.cast().value()); + return r == 0 ? 0 : (r < 0.0 ? -1 : 1); + } + case json_storage_kind::double_value: + { + auto r = cast().value() - rhs.cast().value(); + return r == 0 ? 0 : (r < 0.0 ? -1 : 1); + } + case json_storage_kind::json_const_pointer: + return compare(*(rhs.cast().value())); + default: + return static_cast(storage_kind()) - static_cast((int)rhs.storage_kind()); + } + break; + case json_storage_kind::short_string_value: + case json_storage_kind::long_string_value: + switch (rhs.storage_kind()) + { + case json_storage_kind::short_string_value: + return as_string_view().compare(rhs.as_string_view()); + case json_storage_kind::long_string_value: + return as_string_view().compare(rhs.as_string_view()); + case json_storage_kind::json_const_pointer: + return compare(*(rhs.cast().value())); + default: + return static_cast(storage_kind()) - static_cast((int)rhs.storage_kind()); + } + break; + case json_storage_kind::byte_string_value: + switch (rhs.storage_kind()) + { + case json_storage_kind::byte_string_value: + { + return as_byte_string_view().compare(rhs.as_byte_string_view()); + } + case json_storage_kind::json_const_pointer: + return compare(*(rhs.cast().value())); + default: + return static_cast(storage_kind()) - static_cast((int)rhs.storage_kind()); + } + break; + case json_storage_kind::array_value: + switch (rhs.storage_kind()) + { + case json_storage_kind::array_value: + { + if (cast().value() == rhs.cast().value()) + return 0; + else + return cast().value() < rhs.cast().value() ? -1 : 1; + } + case json_storage_kind::json_const_pointer: + return compare(*(rhs.cast().value())); + default: + return static_cast(storage_kind()) - static_cast((int)rhs.storage_kind()); + } + break; + case json_storage_kind::object_value: + switch (rhs.storage_kind()) + { + case json_storage_kind::empty_object_value: + return empty() ? 0 : 1; + case json_storage_kind::object_value: + { + if (cast().value() == rhs.cast().value()) + return 0; + else + return cast().value() < rhs.cast().value() ? -1 : 1; + } + case json_storage_kind::json_const_pointer: + return compare(*(rhs.cast().value())); + default: + return static_cast(storage_kind()) - static_cast((int)rhs.storage_kind()); + } + break; + default: + JSONCONS_UNREACHABLE(); + break; + } + } + + void swap(basic_json& other) noexcept + { + if (this == &other) + { + return; + } + + switch (storage_kind()) + { + case json_storage_kind::null_value: swap_a(other); break; + case json_storage_kind::empty_object_value : swap_a(other); break; + case json_storage_kind::bool_value: swap_a(other); break; + case json_storage_kind::int64_value: swap_a(other); break; + case json_storage_kind::uint64_value: swap_a(other); break; + case json_storage_kind::half_value: swap_a(other); break; + case json_storage_kind::double_value: swap_a(other); break; + case json_storage_kind::short_string_value: swap_a(other); break; + case json_storage_kind::long_string_value: swap_a(other); break; + case json_storage_kind::byte_string_value: swap_a(other); break; + case json_storage_kind::array_value: swap_a(other); break; + case json_storage_kind::object_value: swap_a(other); break; + case json_storage_kind::json_const_pointer: swap_a(other); break; + default: + JSONCONS_UNREACHABLE(); + break; + } + } + // from string + + template + static + typename std::enable_if::value,basic_json>::type + parse(const Source& s, + const basic_json_decode_options& options = basic_json_decode_options(), + std::function err_handler = default_json_parsing()) + { + json_decoder decoder; + basic_json_parser parser(options,err_handler); + + auto r = unicode_traits::detect_encoding_from_bom(s.data(), s.size()); + if (!(r.encoding == unicode_traits::encoding_kind::utf8 || r.encoding == unicode_traits::encoding_kind::undetected)) + { + JSONCONS_THROW(ser_error(json_errc::illegal_unicode_character,parser.line(),parser.column())); + } + std::size_t offset = (r.ptr - s.data()); + parser.update(s.data()+offset,s.size()-offset); + parser.parse_some(decoder); + parser.finish_parse(decoder); + parser.check_done(); + if (!decoder.is_valid()) + { + JSONCONS_THROW(ser_error(json_errc::source_error, "Failed to parse json string")); + } + return decoder.get_result(); + } + + template + static + typename std::enable_if::value,basic_json>::type + parse(const Source& s, + std::function err_handler) + { + return parse(s, basic_json_decode_options(), err_handler); + } + + static basic_json parse(const char_type* s, + const basic_json_decode_options& options = basic_json_decode_options(), + std::function err_handler = default_json_parsing()) + { + return parse(jsoncons::basic_string_view(s), options, err_handler); + } + + static basic_json parse(const char_type* s, + std::function err_handler) + { + return parse(jsoncons::basic_string_view(s), basic_json_decode_options(), err_handler); + } + + // from stream + + static basic_json parse(std::basic_istream& is, + const basic_json_decode_options& options = basic_json_decode_options(), + std::function err_handler = default_json_parsing()) + { + json_decoder visitor; + basic_json_reader> reader(is, visitor, options, err_handler); + reader.read_next(); + reader.check_done(); + if (!visitor.is_valid()) + { + JSONCONS_THROW(ser_error(json_errc::source_error, "Failed to parse json stream")); + } + return visitor.get_result(); + } + + static basic_json parse(std::basic_istream& is, std::function err_handler) + { + return parse(is, basic_json_decode_options(), err_handler); + } + + // from iterator + + template + static basic_json parse(InputIt first, InputIt last, + const basic_json_decode_options& options = basic_json_decode_options(), + std::function err_handler = default_json_parsing()) + { + json_decoder visitor; + basic_json_reader> reader(iterator_source(std::forward(first),std::forward(last)), visitor, options, err_handler); + reader.read_next(); + reader.check_done(); + if (!visitor.is_valid()) + { + JSONCONS_THROW(ser_error(json_errc::source_error, "Failed to parse json from iterator pair")); + } + return visitor.get_result(); + } + + template + static basic_json parse(InputIt first, InputIt last, + std::function err_handler) + { + return parse(first, last, basic_json_decode_options(), err_handler); + } + + static basic_json make_array() + { + return basic_json(array()); + } + + static basic_json make_array(const array& a) + { + return basic_json(a); + } + + static basic_json make_array(const array& a, allocator_type alloc) + { + return basic_json(a, semantic_tag::none, alloc); + } + + static basic_json make_array(std::initializer_list init, const Allocator& alloc = Allocator()) + { + return array(std::move(init),alloc); + } + + static basic_json make_array(std::size_t n, const Allocator& alloc = Allocator()) + { + return array(n,alloc); + } + + template + static basic_json make_array(std::size_t n, const T& val, const Allocator& alloc = Allocator()) + { + return basic_json::array(n, val,alloc); + } + + template + static typename std::enable_if::type make_array(std::size_t n) + { + return array(n); + } + + template + static typename std::enable_if::type make_array(std::size_t n, const T& val, const Allocator& alloc = Allocator()) + { + return array(n,val,alloc); + } + + template + static typename std::enable_if<(dim>1),basic_json>::type make_array(std::size_t n, Args... args) + { + const size_t dim1 = dim - 1; + + basic_json val = make_array(std::forward(args)...); + val.resize(n); + for (std::size_t i = 0; i < n; ++i) + { + val[i] = make_array(std::forward(args)...); + } + return val; + } + + static const basic_json& null() + { + static const basic_json a_null = basic_json(null_type(), semantic_tag::none); + return a_null; + } + + basic_json() + { + construct(semantic_tag::none); + } + + basic_json(semantic_tag tag) + { + construct(tag); + } + + #if !defined(JSONCONS_NO_DEPRECATED) + + JSONCONS_DEPRECATED_MSG("Instead, use basic_json(json_object_t,semantic_tag,const Allocator&)") + explicit basic_json(const Allocator& alloc, semantic_tag tag = semantic_tag::none) + { + construct(object(alloc), tag); + } + + #endif + + basic_json(const basic_json& other) + { + Init_(other); + } + + basic_json(const basic_json& other, const Allocator& alloc) + { + Init_(other,alloc); + } + + basic_json(basic_json&& other) noexcept + { + Init_rv_(std::forward(other)); + } + + basic_json(basic_json&& other, const Allocator&) noexcept + { + Init_rv_(std::forward(other)); + } + + explicit basic_json(json_object_arg_t, + semantic_tag tag = semantic_tag::none, + const Allocator& alloc = Allocator()) + { + construct(object(alloc), tag); + } + + template + basic_json(json_object_arg_t, + InputIt first, InputIt last, + semantic_tag tag = semantic_tag::none, + const Allocator& alloc = Allocator()) + { + construct(object(first,last,alloc), tag); + } + + basic_json(json_object_arg_t, + std::initializer_list,basic_json>> init, + semantic_tag tag = semantic_tag::none, + const Allocator& alloc = Allocator()) + { + construct(object(init,alloc), tag); + } + + explicit basic_json(json_array_arg_t, + semantic_tag tag = semantic_tag::none, + const Allocator& alloc = Allocator()) + { + construct(array(alloc), tag); + } + + template + basic_json(json_array_arg_t, + InputIt first, InputIt last, + semantic_tag tag = semantic_tag::none, + const Allocator& alloc = Allocator()) + { + construct(array(first,last,alloc), tag); + } + + basic_json(json_array_arg_t, + std::initializer_list init, + semantic_tag tag = semantic_tag::none, + const Allocator& alloc = Allocator()) + { + construct(array(init,alloc), tag); + } + + basic_json(json_const_pointer_arg_t, const basic_json* p) noexcept + { + if (p == nullptr) + { + construct(semantic_tag::none); + } + else + { + construct(p); + } + } + + basic_json(const array& val, semantic_tag tag = semantic_tag::none) + { + construct(val, tag); + } + + basic_json(array&& val, semantic_tag tag = semantic_tag::none) + { + construct(std::forward(val), tag); + } + + basic_json(const object& val, semantic_tag tag = semantic_tag::none) + { + construct(val, tag); + } + + basic_json(object&& val, semantic_tag tag = semantic_tag::none) + { + construct(std::forward(val), tag); + } + + template ::value && !type_traits::is_basic_json::value>::type> + basic_json(const T& val) + : basic_json(json_type_traits::to_json(val)) + { + } + + template ::value && !type_traits::is_basic_json::value>::type> + basic_json(const T& val, const Allocator& alloc) + : basic_json(json_type_traits::to_json(val,alloc)) + { + } + + basic_json(const char_type* s, semantic_tag tag = semantic_tag::none) + : basic_json(s, char_traits_type::length(s), tag) + { + } + + basic_json(const char_type* s, const Allocator& alloc) + : basic_json(s, char_traits_type::length(s), semantic_tag::none, alloc) + { + } + + basic_json(const char_type* s, std::size_t length, semantic_tag tag = semantic_tag::none) + { + if (length <= short_string_storage::max_length) + { + construct(tag, s, static_cast(length)); + } + else + { + construct(tag, s, length, char_allocator_type()); + } + } + + basic_json(const char_type* s, std::size_t length, semantic_tag tag, const Allocator& alloc) + { + if (length <= short_string_storage::max_length) + { + construct(tag, s, static_cast(length)); + } + else + { + construct(tag, s, length, alloc); + } + } + + basic_json(half_arg_t, uint16_t val, semantic_tag tag = semantic_tag::none) + { + construct(val, tag); + } + + basic_json(double val, semantic_tag tag) + { + construct(val, tag); + } + + template + basic_json(IntegerType val, semantic_tag tag, + typename std::enable_if::value && sizeof(IntegerType) <= sizeof(uint64_t), int>::type = 0) + { + construct(val, tag); + } + + template + basic_json(IntegerType val, semantic_tag tag, Allocator, + typename std::enable_if::value && sizeof(IntegerType) <= sizeof(uint64_t), int>::type = 0) + { + construct(val, tag); + } + + template + basic_json(IntegerType val, semantic_tag, Allocator alloc = Allocator(), + typename std::enable_if::value && sizeof(uint64_t) < sizeof(IntegerType), int>::type = 0) + { + std::basic_string s; + jsoncons::detail::from_integer(val, s); + if (s.length() <= short_string_storage::max_length) + { + construct(semantic_tag::bigint, s.data(), static_cast(s.length())); + } + else + { + construct(semantic_tag::bigint, s.data(), s.length(), alloc); + } + } + + template + basic_json(IntegerType val, semantic_tag tag, + typename std::enable_if::value && sizeof(IntegerType) <= sizeof(int64_t),int>::type = 0) + { + construct(val, tag); + } + + template + basic_json(IntegerType val, semantic_tag tag, Allocator, + typename std::enable_if::value && sizeof(IntegerType) <= sizeof(int64_t),int>::type = 0) + { + construct(val, tag); + } + + template + basic_json(IntegerType val, semantic_tag, Allocator alloc = Allocator(), + typename std::enable_if::value && sizeof(int64_t) < sizeof(IntegerType),int>::type = 0) + { + std::basic_string s; + jsoncons::detail::from_integer(val, s); + if (s.length() <= short_string_storage::max_length) + { + construct(semantic_tag::bigint, s.data(), static_cast(s.length())); + } + else + { + construct(semantic_tag::bigint, s.data(), s.length(), alloc); + } + } + + basic_json(const string_view_type& sv, semantic_tag tag) + : basic_json(sv.data(), sv.length(), tag) + { + } + + basic_json(null_type, semantic_tag tag) + { + construct(tag); + } + + basic_json(bool val, semantic_tag tag) + { + construct(val,tag); + } + + basic_json(const string_view_type& sv, semantic_tag tag, const Allocator& alloc) + : basic_json(sv.data(), sv.length(), tag, alloc) + { + } + + template + basic_json(byte_string_arg_t, const Source& source, + semantic_tag tag = semantic_tag::none, + const Allocator& alloc = Allocator(), + typename std::enable_if::value,int>::type = 0) + { + auto bytes = jsoncons::span(reinterpret_cast(source.data()), source.size()); + construct(tag, bytes.data(), bytes.size(), 0, alloc); + } + + template + basic_json(byte_string_arg_t, const Source& source, + uint64_t ext_tag, + const Allocator& alloc = Allocator(), + typename std::enable_if::value,int>::type = 0) + { + auto bytes = jsoncons::span(reinterpret_cast(source.data()), source.size()); + construct(semantic_tag::ext, bytes.data(), bytes.size(), ext_tag, alloc); + } + + ~basic_json() noexcept + { + Destroy_(); + } + + template + basic_json& operator=(const T& val) + { + *this = json_type_traits::to_json(val); + return *this; + } + + basic_json& operator=(const char_type* s) + { + *this = basic_json(s, char_traits_type::length(s), semantic_tag::none); + return *this; + } + + basic_json& operator[](std::size_t i) + { + return at(i); + } + + const basic_json& operator[](std::size_t i) const + { + return at(i); + } + + proxy_type operator[](const string_view_type& name) + { + switch (storage_kind()) + { + case json_storage_kind::empty_object_value: + create_object_implicitly(); + JSONCONS_FALLTHROUGH; + case json_storage_kind::object_value: + return proxy_type(*this, name); + break; + default: + JSONCONS_THROW(not_an_object(name.data(),name.length())); + break; + } + } + + const basic_json& operator[](const string_view_type& name) const + { + return at(name); + } + + + template + typename std::enable_if::value>::type + dump(Container& s, + const basic_json_encode_options& options = basic_json_encode_options()) const + { + std::error_code ec; + dump(s, options, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec)); + } + } + + template + typename std::enable_if::value>::type + dump_pretty(Container& s, + const basic_json_encode_options& options = basic_json_encode_options()) const + { + std::error_code ec; + dump_pretty(s, options, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec)); + } + } + + void dump(std::basic_ostream& os, + const basic_json_encode_options& options = basic_json_encode_options()) const + { + std::error_code ec; + dump(os, options, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec)); + } + } + + void dump_pretty(std::basic_ostream& os, + const basic_json_encode_options& options = basic_json_encode_options()) const + { + std::error_code ec; + dump_pretty(os, options, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec)); + } + } + + // Legacy + + template + typename std::enable_if::value>::type + dump(Container& s, + indenting line_indent) const + { + std::error_code ec; + + dump(s, line_indent, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec)); + } + } + + template + typename std::enable_if::value>::type + dump(Container& s, + const basic_json_encode_options& options, + indenting line_indent) const + { + std::error_code ec; + + dump(s, options, line_indent, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec)); + } + } + + void dump(std::basic_ostream& os, + indenting line_indent) const + { + std::error_code ec; + + dump(os, line_indent, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec)); + } + } + + void dump(std::basic_ostream& os, + const basic_json_encode_options& options, + indenting line_indent) const + { + std::error_code ec; + + dump(os, options, line_indent, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec)); + } + } + + // end legacy + + void dump(basic_json_visitor& visitor) const + { + std::error_code ec; + dump(visitor, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec)); + } + } + + // dump + template + typename std::enable_if::value>::type + dump(Container& s, + const basic_json_encode_options& options, + std::error_code& ec) const + { + basic_compact_json_encoder> encoder(s, options); + dump(encoder, ec); + } + + template + typename std::enable_if::value>::type + dump(Container& s, + std::error_code& ec) const + { + basic_compact_json_encoder> encoder(s); + dump(encoder, ec); + } + + void dump(std::basic_ostream& os, + const basic_json_encode_options& options, + std::error_code& ec) const + { + basic_compact_json_encoder encoder(os, options); + dump(encoder, ec); + } + + void dump(std::basic_ostream& os, + std::error_code& ec) const + { + basic_compact_json_encoder encoder(os); + dump(encoder, ec); + } + + // dump_pretty + + template + typename std::enable_if::value>::type + dump_pretty(Container& s, + const basic_json_encode_options& options, + std::error_code& ec) const + { + basic_json_encoder> encoder(s, options); + dump(encoder, ec); + } + + template + typename std::enable_if::value>::type + dump_pretty(Container& s, + std::error_code& ec) const + { + dump_pretty(s, basic_json_encode_options(), ec); + } + + void dump_pretty(std::basic_ostream& os, + const basic_json_encode_options& options, + std::error_code& ec) const + { + basic_json_encoder encoder(os, options); + dump(encoder, ec); + } + + void dump_pretty(std::basic_ostream& os, + std::error_code& ec) const + { + dump_pretty(os, basic_json_encode_options(), ec); + } + + // legacy + template + typename std::enable_if::value>::type + dump(Container& s, + const basic_json_encode_options& options, + indenting line_indent, + std::error_code& ec) const + { + if (line_indent == indenting::indent) + { + dump_pretty(s, options, ec); + } + else + { + dump(s, options, ec); + } + } + + template + typename std::enable_if::value>::type + dump(Container& s, + indenting line_indent, + std::error_code& ec) const + { + if (line_indent == indenting::indent) + { + dump_pretty(s, ec); + } + else + { + dump(s, ec); + } + } + + void dump(std::basic_ostream& os, + const basic_json_encode_options& options, + indenting line_indent, + std::error_code& ec) const + { + if (line_indent == indenting::indent) + { + dump_pretty(os, options, ec); + } + else + { + dump(os, options, ec); + } + } + + void dump(std::basic_ostream& os, + indenting line_indent, + std::error_code& ec) const + { + if (line_indent == indenting::indent) + { + dump_pretty(os, ec); + } + else + { + dump(os, ec); + } + } + // end legacy + + void dump(basic_json_visitor& visitor, + std::error_code& ec) const + { + dump_noflush(visitor, ec); + if (ec) + { + return; + } + visitor.flush(); + } + + bool is_null() const noexcept + { + switch (storage_kind()) + { + case json_storage_kind::null_value: + return true; + case json_storage_kind::json_const_pointer: + return cast().value()->is_null(); + default: + return false; + } + } + + allocator_type get_allocator() const + { + switch (storage_kind()) + { + case json_storage_kind::long_string_value: + { + return cast().get_allocator(); + } + case json_storage_kind::byte_string_value: + { + return cast().get_allocator(); + } + case json_storage_kind::array_value: + { + return cast().get_allocator(); + } + case json_storage_kind::object_value: + { + return cast().get_allocator(); + } + default: + return allocator_type(); + } + } + + uint64_t ext_tag() const + { + switch (storage_kind()) + { + case json_storage_kind::byte_string_value: + { + return cast().ext_tag(); + } + case json_storage_kind::json_const_pointer: + return cast().value()->ext_tag(); + default: + return 0; + } + } + + bool contains(const string_view_type& key) const noexcept + { + switch (storage_kind()) + { + case json_storage_kind::object_value: + { + auto it = object_value().find(key); + return it != object_value().end(); + } + case json_storage_kind::json_const_pointer: + return cast().value()->contains(key); + default: + return false; + } + } + + std::size_t count(const string_view_type& key) const + { + switch (storage_kind()) + { + case json_storage_kind::object_value: + { + auto it = object_value().find(key); + if (it == object_value().end()) + { + return 0; + } + std::size_t count = 0; + while (it != object_value().end()&& it->key() == key) + { + ++count; + ++it; + } + return count; + } + case json_storage_kind::json_const_pointer: + return cast().value()->count(key); + default: + return 0; + } + } + + template + bool is(Args&&... args) const noexcept + { + return json_type_traits::is(*this,std::forward(args)...); + } + + bool is_string() const noexcept + { + switch (storage_kind()) + { + case json_storage_kind::short_string_value: + case json_storage_kind::long_string_value: + return true; + case json_storage_kind::json_const_pointer: + return cast().value()->is_string(); + default: + return false; + } + } + + bool is_string_view() const noexcept + { + return is_string(); + } + + bool is_byte_string() const noexcept + { + switch (storage_kind()) + { + case json_storage_kind::byte_string_value: + return true; + case json_storage_kind::json_const_pointer: + return cast().value()->is_byte_string(); + default: + return false; + } + } + + bool is_byte_string_view() const noexcept + { + return is_byte_string(); + } + + bool is_bignum() const + { + switch (storage_kind()) + { + case json_storage_kind::short_string_value: + case json_storage_kind::long_string_value: + return jsoncons::detail::is_base10(as_string_view().data(), as_string_view().length()); + case json_storage_kind::int64_value: + case json_storage_kind::uint64_value: + return true; + case json_storage_kind::json_const_pointer: + return cast().value()->is_bignum(); + default: + return false; + } + } + + bool is_bool() const noexcept + { + switch (storage_kind()) + { + case json_storage_kind::bool_value: + return true; + case json_storage_kind::json_const_pointer: + return cast().value()->is_bool(); + default: + return false; + } + } + + bool is_object() const noexcept + { + switch (storage_kind()) + { + case json_storage_kind::empty_object_value: + case json_storage_kind::object_value: + return true; + case json_storage_kind::json_const_pointer: + return cast().value()->is_object(); + default: + return false; + } + } + + bool is_array() const noexcept + { + switch (storage_kind()) + { + case json_storage_kind::array_value: + return true; + case json_storage_kind::json_const_pointer: + return cast().value()->is_array(); + default: + return false; + } + } + + bool is_int64() const noexcept + { + switch (storage_kind()) + { + case json_storage_kind::int64_value: + return true; + case json_storage_kind::uint64_value: + return as_integer() <= static_cast((std::numeric_limits::max)()); + case json_storage_kind::json_const_pointer: + return cast().value()->is_int64(); + default: + return false; + } + } + + bool is_uint64() const noexcept + { + switch (storage_kind()) + { + case json_storage_kind::uint64_value: + return true; + case json_storage_kind::int64_value: + return as_integer() >= 0; + case json_storage_kind::json_const_pointer: + return cast().value()->is_uint64(); + default: + return false; + } + } + + bool is_half() const noexcept + { + switch (storage_kind()) + { + case json_storage_kind::half_value: + return true; + case json_storage_kind::json_const_pointer: + return cast().value()->is_half(); + default: + return false; + } + } + + bool is_double() const noexcept + { + switch (storage_kind()) + { + case json_storage_kind::double_value: + return true; + case json_storage_kind::json_const_pointer: + return cast().value()->is_double(); + default: + return false; + } + } + + bool is_number() const noexcept + { + switch (storage_kind()) + { + case json_storage_kind::int64_value: + case json_storage_kind::uint64_value: + case json_storage_kind::half_value: + case json_storage_kind::double_value: + return true; + case json_storage_kind::short_string_value: + case json_storage_kind::long_string_value: + return tag() == semantic_tag::bigint || + tag() == semantic_tag::bigdec || + tag() == semantic_tag::bigfloat; + case json_storage_kind::json_const_pointer: + return cast().value()->is_number(); + default: + return false; + } + } + + bool empty() const noexcept + { + switch (storage_kind()) + { + case json_storage_kind::byte_string_value: + return cast().length() == 0; + break; + case json_storage_kind::short_string_value: + return cast().length() == 0; + case json_storage_kind::long_string_value: + return cast().length() == 0; + case json_storage_kind::array_value: + return array_value().empty(); + case json_storage_kind::empty_object_value: + return true; + case json_storage_kind::object_value: + return object_value().empty(); + case json_storage_kind::json_const_pointer: + return cast().value()->empty(); + default: + return false; + } + } + + std::size_t capacity() const + { + switch (storage_kind()) + { + case json_storage_kind::array_value: + return array_value().capacity(); + case json_storage_kind::object_value: + return object_value().capacity(); + case json_storage_kind::json_const_pointer: + return cast().value()->capacity(); + default: + return 0; + } + } + + template + void create_object_implicitly() + { + create_object_implicitly(type_traits::is_stateless()); + } + + void create_object_implicitly(std::false_type) + { + static_assert(std::true_type::value, "Cannot create object implicitly - alloc is stateful."); + } + + void create_object_implicitly(std::true_type) + { + *this = basic_json(json_object_arg, tag()); + } + + void reserve(std::size_t n) + { + if (n > 0) + { + switch (storage_kind()) + { + case json_storage_kind::array_value: + array_value().reserve(n); + break; + case json_storage_kind::empty_object_value: + { + create_object_implicitly(); + object_value().reserve(n); + } + break; + case json_storage_kind::object_value: + { + object_value().reserve(n); + } + break; + default: + break; + } + } + } + + void resize(std::size_t n) + { + switch (storage_kind()) + { + case json_storage_kind::array_value: + array_value().resize(n); + break; + default: + break; + } + } + + template + void resize(std::size_t n, T val) + { + switch (storage_kind()) + { + case json_storage_kind::array_value: + array_value().resize(n, val); + break; + default: + break; + } + } + + template + typename std::enable_if::value,T>::type + as() const + { + T val = json_type_traits::as(*this); + return val; + } + + template + typename std::enable_if<(!type_traits::is_basic_string::value && + type_traits::is_back_insertable_byte_container::value) || + type_traits::is_basic_byte_string::value,T>::type + as(byte_string_arg_t, semantic_tag hint) const + { + converter convert; + std::error_code ec; + switch (storage_kind()) + { + case json_storage_kind::short_string_value: + case json_storage_kind::long_string_value: + { + switch (tag()) + { + case semantic_tag::base16: + case semantic_tag::base64: + case semantic_tag::base64url: + { + T v = convert.from(as_string_view(),tag(),ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec)); + } + return v; + } + default: + { + T v = convert.from(as_string_view(), hint, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec)); + } + return T(v.begin(),v.end()); + } + break; + } + break; + } + case json_storage_kind::byte_string_value: + return T(as_byte_string_view().begin(), as_byte_string_view().end()); + case json_storage_kind::json_const_pointer: + return cast().value()->template as(byte_string_arg, hint); + default: + JSONCONS_THROW(json_runtime_error("Not a byte string")); + } + } + + bool as_bool() const + { + switch (storage_kind()) + { + case json_storage_kind::bool_value: + return cast().value(); + case json_storage_kind::int64_value: + return cast().value() != 0; + case json_storage_kind::uint64_value: + return cast().value() != 0; + case json_storage_kind::json_const_pointer: + return cast().value()->as_bool(); + default: + JSONCONS_THROW(json_runtime_error("Not a bool")); + } + } + + template + IntegerType as_integer() const + { + switch (storage_kind()) + { + case json_storage_kind::short_string_value: + case json_storage_kind::long_string_value: + { + IntegerType val; + auto result = jsoncons::detail::to_integer(as_string_view().data(), as_string_view().length(), val); + if (!result) + { + JSONCONS_THROW(json_runtime_error(result.error_code().message())); + } + return val; + } + case json_storage_kind::half_value: + return static_cast(cast().value()); + case json_storage_kind::double_value: + return static_cast(cast().value()); + case json_storage_kind::int64_value: + return static_cast(cast().value()); + case json_storage_kind::uint64_value: + return static_cast(cast().value()); + case json_storage_kind::bool_value: + return static_cast(cast().value() ? 1 : 0); + case json_storage_kind::json_const_pointer: + return cast().value()->template as_integer(); + default: + JSONCONS_THROW(json_runtime_error("Not an integer")); + } + } + + template + typename std::enable_if::value && sizeof(IntegerType) <= sizeof(int64_t),bool>::type + is_integer() const noexcept + { + switch (storage_kind()) + { + case json_storage_kind::int64_value: + return (as_integer() >= (type_traits::integer_limits::lowest)()) && (as_integer() <= (type_traits::integer_limits::max)()); + case json_storage_kind::uint64_value: + return as_integer() <= static_cast((type_traits::integer_limits::max)()); + case json_storage_kind::json_const_pointer: + return cast().value()->template is_integer(); + default: + return false; + } + } + + template + typename std::enable_if::value && sizeof(int64_t) < sizeof(IntegerType),bool>::type + is_integer() const noexcept + { + switch (storage_kind()) + { + case json_storage_kind::short_string_value: + case json_storage_kind::long_string_value: + { + IntegerType val; + auto result = jsoncons::detail::to_integer(as_string_view().data(), as_string_view().length(), val); + return result ? true : false; + } + case json_storage_kind::int64_value: + return (as_integer() >= (type_traits::integer_limits::lowest)()) && (as_integer() <= (type_traits::integer_limits::max)()); + case json_storage_kind::uint64_value: + return as_integer() <= static_cast((type_traits::integer_limits::max)()); + case json_storage_kind::json_const_pointer: + return cast().value()->template is_integer(); + default: + return false; + } + } + + template + typename std::enable_if::value && sizeof(IntegerType) <= sizeof(int64_t),bool>::type + is_integer() const noexcept + { + switch (storage_kind()) + { + case json_storage_kind::int64_value: + return as_integer() >= 0 && static_cast(as_integer()) <= (type_traits::integer_limits::max)(); + case json_storage_kind::uint64_value: + return as_integer() <= (type_traits::integer_limits::max)(); + case json_storage_kind::json_const_pointer: + return cast().value()->template is_integer(); + default: + return false; + } + } + + template + typename std::enable_if::value && sizeof(int64_t) < sizeof(IntegerType),bool>::type + is_integer() const noexcept + { + switch (storage_kind()) + { + case json_storage_kind::short_string_value: + case json_storage_kind::long_string_value: + { + IntegerType val; + auto result = jsoncons::detail::to_integer(as_string_view().data(), as_string_view().length(), val); + return result ? true : false; + } + case json_storage_kind::int64_value: + return as_integer() >= 0 && static_cast(as_integer()) <= (type_traits::integer_limits::max)(); + case json_storage_kind::uint64_value: + return as_integer() <= (type_traits::integer_limits::max)(); + case json_storage_kind::json_const_pointer: + return cast().value()->template is_integer(); + default: + return false; + } + } + + double as_double() const + { + switch (storage_kind()) + { + case json_storage_kind::short_string_value: + case json_storage_kind::long_string_value: + { + jsoncons::detail::chars_to to_double; + // to_double() throws std::invalid_argument if conversion fails + return to_double(as_cstring(), as_string_view().length()); + } + case json_storage_kind::half_value: + return binary::decode_half(cast().value()); + case json_storage_kind::double_value: + return cast().value(); + case json_storage_kind::int64_value: + return static_cast(cast().value()); + case json_storage_kind::uint64_value: + return static_cast(cast().value()); + case json_storage_kind::json_const_pointer: + return cast().value()->as_double(); + default: + JSONCONS_THROW(json_runtime_error("Not a double")); + } + } + + template > + std::basic_string as_string() const + { + return as_string(SAllocator()); + } + + template > + std::basic_string as_string(const SAllocator& alloc) const + { + using string_type = std::basic_string; + + converter convert; + std::error_code ec; + switch (storage_kind()) + { + case json_storage_kind::short_string_value: + case json_storage_kind::long_string_value: + { + return string_type(as_string_view().data(),as_string_view().length(),alloc); + } + case json_storage_kind::byte_string_value: + { + auto s = convert.from(as_byte_string_view(), tag(), alloc, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec)); + } + return s; + } + case json_storage_kind::array_value: + { + string_type s(alloc); + { + basic_compact_json_encoder> encoder(s); + dump(encoder); + } + return s; + } + case json_storage_kind::json_const_pointer: + return cast().value()->as_string(alloc); + default: + { + string_type s(alloc); + basic_compact_json_encoder> encoder(s); + dump(encoder); + return s; + } + } + } + + const char_type* as_cstring() const + { + switch (storage_kind()) + { + case json_storage_kind::short_string_value: + return cast().c_str(); + case json_storage_kind::long_string_value: + return cast().c_str(); + case json_storage_kind::json_const_pointer: + return cast().value()->as_cstring(); + default: + JSONCONS_THROW(json_runtime_error("Not a cstring")); + } + } + + basic_json& at(const string_view_type& name) + { + switch (storage_kind()) + { + case json_storage_kind::empty_object_value: + JSONCONS_THROW(key_not_found(name.data(),name.length())); + case json_storage_kind::object_value: + { + auto it = object_value().find(name); + if (it == object_value().end()) + { + JSONCONS_THROW(key_not_found(name.data(),name.length())); + } + return it->value(); + } + default: + { + JSONCONS_THROW(not_an_object(name.data(),name.length())); + } + } + } + + const basic_json& at(const string_view_type& key) const + { + switch (storage_kind()) + { + case json_storage_kind::empty_object_value: + JSONCONS_THROW(key_not_found(key.data(),key.length())); + case json_storage_kind::object_value: + { + auto it = object_value().find(key); + if (it == object_value().end()) + { + JSONCONS_THROW(key_not_found(key.data(),key.length())); + } + return it->value(); + } + case json_storage_kind::json_const_pointer: + return cast().value()->at(key); + default: + { + JSONCONS_THROW(not_an_object(key.data(),key.length())); + } + } + } + + basic_json& at(std::size_t i) + { + switch (storage_kind()) + { + case json_storage_kind::array_value: + if (i >= array_value().size()) + { + JSONCONS_THROW(json_runtime_error("Invalid array subscript")); + } + return array_value().operator[](i); + case json_storage_kind::object_value: + return object_value().at(i); + default: + JSONCONS_THROW(json_runtime_error("Index on non-array value not supported")); + } + } + + const basic_json& at(std::size_t i) const + { + switch (storage_kind()) + { + case json_storage_kind::array_value: + if (i >= array_value().size()) + { + JSONCONS_THROW(json_runtime_error("Invalid array subscript")); + } + return array_value().operator[](i); + case json_storage_kind::object_value: + return object_value().at(i); + case json_storage_kind::json_const_pointer: + return cast().value()->at(i); + default: + JSONCONS_THROW(json_runtime_error("Index on non-array value not supported")); + } + } + + object_iterator find(const string_view_type& name) + { + switch (storage_kind()) + { + case json_storage_kind::empty_object_value: + return object_range().end(); + case json_storage_kind::object_value: + return object_iterator(object_value().find(name)); + default: + { + JSONCONS_THROW(not_an_object(name.data(),name.length())); + } + } + } + + const_object_iterator find(const string_view_type& key) const + { + switch (storage_kind()) + { + case json_storage_kind::empty_object_value: + return object_range().end(); + case json_storage_kind::object_value: + return const_object_iterator(object_value().find(key)); + case json_storage_kind::json_const_pointer: + return cast().value()->find(key); + default: + { + JSONCONS_THROW(not_an_object(key.data(),key.length())); + } + } + } + + const basic_json& at_or_null(const string_view_type& key) const + { + switch (storage_kind()) + { + case json_storage_kind::null_value: + case json_storage_kind::empty_object_value: + { + return null(); + } + case json_storage_kind::object_value: + { + auto it = object_value().find(key); + if (it != object_value().end()) + { + return it->value(); + } + else + { + return null(); + } + } + case json_storage_kind::json_const_pointer: + return cast().value()->at_or_null(key); + default: + { + JSONCONS_THROW(not_an_object(key.data(),key.length())); + } + } + } + + template + T get_value_or(const string_view_type& key, U&& default_value) const + { + static_assert(std::is_copy_constructible::value, + "get_value_or: T must be copy constructible"); + static_assert(std::is_convertible::value, + "get_value_or: U must be convertible to T"); + switch (storage_kind()) + { + case json_storage_kind::null_value: + case json_storage_kind::empty_object_value: + { + return static_cast(std::forward(default_value)); + } + case json_storage_kind::object_value: + { + auto it = object_value().find(key); + if (it != object_value().end()) + { + return it->value().template as(); + } + else + { + return static_cast(std::forward(default_value)); + } + } + case json_storage_kind::json_const_pointer: + return cast().value()->template get_value_or(key,std::forward(default_value)); + default: + { + JSONCONS_THROW(not_an_object(key.data(),key.length())); + } + } + } + + // Modifiers + + void shrink_to_fit() + { + switch (storage_kind()) + { + case json_storage_kind::array_value: + array_value().shrink_to_fit(); + break; + case json_storage_kind::object_value: + object_value().shrink_to_fit(); + break; + default: + break; + } + } + + void clear() + { + switch (storage_kind()) + { + case json_storage_kind::array_value: + array_value().clear(); + break; + case json_storage_kind::object_value: + object_value().clear(); + break; + default: + break; + } + } + + object_iterator erase(const_object_iterator pos) + { + switch (storage_kind()) + { + case json_storage_kind::empty_object_value: + return object_range().end(); + case json_storage_kind::object_value: + return object_iterator(object_value().erase(pos)); + default: + JSONCONS_THROW(json_runtime_error("Not an object")); + break; + } + } + + object_iterator erase(const_object_iterator first, const_object_iterator last) + { + switch (storage_kind()) + { + case json_storage_kind::empty_object_value: + return object_range().end(); + case json_storage_kind::object_value: + return object_iterator(object_value().erase(first, last)); + default: + JSONCONS_THROW(json_runtime_error("Not an object")); + break; + } + } + + array_iterator erase(const_array_iterator pos) + { + switch (storage_kind()) + { + case json_storage_kind::array_value: + return array_value().erase(pos); + default: + JSONCONS_THROW(json_runtime_error("Not an array")); + } + } + + array_iterator erase(const_array_iterator first, const_array_iterator last) + { + switch (storage_kind()) + { + case json_storage_kind::array_value: + return array_value().erase(first, last); + default: + JSONCONS_THROW(json_runtime_error("Not an array")); + break; + } + } + + // Removes all elements from an array value whose index is between from_index, inclusive, and to_index, exclusive. + + void erase(const string_view_type& name) + { + switch (storage_kind()) + { + case json_storage_kind::empty_object_value: + break; + case json_storage_kind::object_value: + object_value().erase(name); + break; + default: + JSONCONS_THROW(not_an_object(name.data(),name.length())); + break; + } + } + + template + std::pair insert_or_assign(const string_view_type& name, T&& val) + { + switch (storage_kind()) + { + case json_storage_kind::empty_object_value: + create_object_implicitly(); + JSONCONS_FALLTHROUGH; + case json_storage_kind::object_value: + { + auto result = object_value().insert_or_assign(name, std::forward(val)); + return std::make_pair(object_iterator(result.first), result.second); + } + default: + { + JSONCONS_THROW(not_an_object(name.data(),name.length())); + } + } + } + + template + std::pair try_emplace(const string_view_type& name, Args&&... args) + { + switch (storage_kind()) + { + case json_storage_kind::empty_object_value: + create_object_implicitly(); + JSONCONS_FALLTHROUGH; + case json_storage_kind::object_value: + { + auto result = object_value().try_emplace(name, std::forward(args)...); + return std::make_pair(object_iterator(result.first),result.second); + } + default: + { + JSONCONS_THROW(not_an_object(name.data(),name.length())); + } + } + } + + // merge + + void merge(const basic_json& source) + { + switch (storage_kind()) + { + case json_storage_kind::empty_object_value: + create_object_implicitly(); + JSONCONS_FALLTHROUGH; + case json_storage_kind::object_value: + object_value().merge(source.object_value()); + break; + default: + { + JSONCONS_THROW(json_runtime_error("Attempting to merge a value that is not an object")); + } + } + } + + void merge(basic_json&& source) + { + switch (storage_kind()) + { + case json_storage_kind::empty_object_value: + create_object_implicitly(); + JSONCONS_FALLTHROUGH; + case json_storage_kind::object_value: + object_value().merge(std::move(source.object_value())); + break; + default: + { + JSONCONS_THROW(json_runtime_error("Attempting to merge a value that is not an object")); + } + } + } + + void merge(object_iterator hint, const basic_json& source) + { + switch (storage_kind()) + { + case json_storage_kind::empty_object_value: + create_object_implicitly(); + JSONCONS_FALLTHROUGH; + case json_storage_kind::object_value: + object_value().merge(hint, source.object_value()); + break; + default: + { + JSONCONS_THROW(json_runtime_error("Attempting to merge a value that is not an object")); + } + } + } + + void merge(object_iterator hint, basic_json&& source) + { + switch (storage_kind()) + { + case json_storage_kind::empty_object_value: + create_object_implicitly(); + JSONCONS_FALLTHROUGH; + case json_storage_kind::object_value: + object_value().merge(hint, std::move(source.object_value())); + break; + default: + { + JSONCONS_THROW(json_runtime_error("Attempting to merge a value that is not an object")); + } + } + } + + // merge_or_update + + void merge_or_update(const basic_json& source) + { + switch (storage_kind()) + { + case json_storage_kind::empty_object_value: + create_object_implicitly(); + JSONCONS_FALLTHROUGH; + case json_storage_kind::object_value: + object_value().merge_or_update(source.object_value()); + break; + default: + { + JSONCONS_THROW(json_runtime_error("Attempting to merge or update a value that is not an object")); + } + } + } + + void merge_or_update(basic_json&& source) + { + switch (storage_kind()) + { + case json_storage_kind::empty_object_value: + create_object_implicitly(); + JSONCONS_FALLTHROUGH; + case json_storage_kind::object_value: + object_value().merge_or_update(std::move(source.object_value())); + break; + default: + { + JSONCONS_THROW(json_runtime_error("Attempting to merge or update a value that is not an object")); + } + } + } + + void merge_or_update(object_iterator hint, const basic_json& source) + { + switch (storage_kind()) + { + case json_storage_kind::empty_object_value: + create_object_implicitly(); + JSONCONS_FALLTHROUGH; + case json_storage_kind::object_value: + object_value().merge_or_update(hint, source.object_value()); + break; + default: + { + JSONCONS_THROW(json_runtime_error("Attempting to merge or update a value that is not an object")); + } + } + } + + void merge_or_update(object_iterator hint, basic_json&& source) + { + switch (storage_kind()) + { + case json_storage_kind::empty_object_value: + create_object_implicitly(); + JSONCONS_FALLTHROUGH; + case json_storage_kind::object_value: + object_value().merge_or_update(hint, std::move(source.object_value())); + break; + default: + { + JSONCONS_THROW(json_runtime_error("Attempting to merge or update a value that is not an object")); + } + } + } + + template + object_iterator insert_or_assign(object_iterator hint, const string_view_type& name, T&& val) + { + switch (storage_kind()) + { + case json_storage_kind::empty_object_value: + create_object_implicitly(); + JSONCONS_FALLTHROUGH; + case json_storage_kind::object_value: + return object_iterator(object_value().insert_or_assign(hint, name, std::forward(val))); + default: + { + JSONCONS_THROW(not_an_object(name.data(),name.length())); + } + } + } + + template + object_iterator try_emplace(object_iterator hint, const string_view_type& name, Args&&... args) + { + switch (storage_kind()) + { + case json_storage_kind::empty_object_value: + create_object_implicitly(); + JSONCONS_FALLTHROUGH; + case json_storage_kind::object_value: + return object_iterator(object_value().try_emplace(hint, name, std::forward(args)...)); + default: + { + JSONCONS_THROW(not_an_object(name.data(),name.length())); + } + } + } + + template + array_iterator insert(const_array_iterator pos, T&& val) + { + switch (storage_kind()) + { + case json_storage_kind::array_value: + return array_value().insert(pos, std::forward(val)); + break; + default: + { + JSONCONS_THROW(json_runtime_error("Attempting to insert into a value that is not an array")); + } + } + } + + template + array_iterator insert(const_array_iterator pos, InputIt first, InputIt last) + { + switch (storage_kind()) + { + case json_storage_kind::array_value: + return array_value().insert(pos, first, last); + break; + default: + { + JSONCONS_THROW(json_runtime_error("Attempting to insert into a value that is not an array")); + } + } + } + + template + void insert(InputIt first, InputIt last) + { + switch (storage_kind()) + { + case json_storage_kind::empty_object_value: + case json_storage_kind::object_value: + object_value().insert(first, last, get_key_value()); + break; + default: + { + JSONCONS_THROW(json_runtime_error("Attempting to insert into a value that is not an object")); + } + } + } + + template + void insert(sorted_unique_range_tag tag, InputIt first, InputIt last) + { + switch (storage_kind()) + { + case json_storage_kind::empty_object_value: + case json_storage_kind::object_value: + object_value().insert(tag, first, last, get_key_value()); + break; + default: + { + JSONCONS_THROW(json_runtime_error("Attempting to insert into a value that is not an object")); + } + } + } + + template + array_iterator emplace(const_array_iterator pos, Args&&... args) + { + switch (storage_kind()) + { + case json_storage_kind::array_value: + return array_value().emplace(pos, std::forward(args)...); + break; + default: + { + JSONCONS_THROW(json_runtime_error("Attempting to insert into a value that is not an array")); + } + } + } + + template + basic_json& emplace_back(Args&&... args) + { + switch (storage_kind()) + { + case json_storage_kind::array_value: + return array_value().emplace_back(std::forward(args)...); + default: + { + JSONCONS_THROW(json_runtime_error("Attempting to insert into a value that is not an array")); + } + } + } + + friend void swap(basic_json& a, basic_json& b) noexcept + { + a.swap(b); + } + + template + void push_back(T&& val) + { + switch (storage_kind()) + { + case json_storage_kind::array_value: + array_value().push_back(std::forward(val)); + break; + default: + { + JSONCONS_THROW(json_runtime_error("Attempting to insert into a value that is not an array")); + } + } + } + + template + T get_with_default(const string_view_type& key, const T& default_value) const + { + switch (storage_kind()) + { + case json_storage_kind::null_value: + case json_storage_kind::empty_object_value: + { + return default_value; + } + case json_storage_kind::object_value: + { + auto it = object_value().find(key); + if (it != object_value().end()) + { + return it->value().template as(); + } + else + { + return default_value; + } + } + case json_storage_kind::json_const_pointer: + return cast().value()->get_with_default(key, default_value); + default: + { + JSONCONS_THROW(not_an_object(key.data(),key.length())); + } + } + } + + template> + T get_with_default(const string_view_type& key, const char_type* default_value) const + { + switch (storage_kind()) + { + case json_storage_kind::null_value: + case json_storage_kind::empty_object_value: + { + return T(default_value); + } + case json_storage_kind::object_value: + { + auto it = object_value().find(key); + if (it != object_value().end()) + { + return it->value().template as(); + } + else + { + return T(default_value); + } + } + case json_storage_kind::json_const_pointer: + return cast().value()->get_with_default(key, default_value); + default: + { + JSONCONS_THROW(not_an_object(key.data(),key.length())); + } + } + } + + std::basic_string to_string() const noexcept + { + using string_type = std::basic_string; + string_type s; + basic_compact_json_encoder> encoder(s); + dump(encoder); + return s; + } + + #if !defined(JSONCONS_NO_DEPRECATED) + JSONCONS_DEPRECATED_MSG("Instead, use basic_json(byte_string_arg_t, const Source&, semantic_tag=semantic_tag::none,const Allocator& = Allocator())") + basic_json(const byte_string_view& bytes, + semantic_tag tag, + const Allocator& alloc = Allocator()) + : basic_json(byte_string_arg, bytes, tag, alloc) + { + } + + JSONCONS_DEPRECATED_MSG("Instead, use at_or_null(const string_view_type&)") + const basic_json& get_with_default(const string_view_type& name) const + { + return at_or_null(name); + } + + JSONCONS_DEPRECATED_MSG("Instead, use parse(const string_view_type&)") + static basic_json parse(const char_type* s, std::size_t length) + { + parse_error_handler_type err_handler; + return parse(s,length,err_handler); + } + + JSONCONS_DEPRECATED_MSG("Instead, use parse(const string_view_type&, parse_error_handler)") + static basic_json parse(const char_type* s, std::size_t length, std::function err_handler) + { + return parse(string_view_type(s,length),err_handler); + } + + JSONCONS_DEPRECATED_MSG("Instead, use parse(std::basic_istream&)") + static basic_json parse_file(const std::basic_string& filename) + { + parse_error_handler_type err_handler; + return parse_file(filename,err_handler); + } + + JSONCONS_DEPRECATED_MSG("Instead, use parse(std::basic_istream&, std::function)") + static basic_json parse_file(const std::basic_string& filename, + std::function err_handler) + { + std::basic_ifstream is(filename); + return parse(is,err_handler); + } + + JSONCONS_DEPRECATED_MSG("Instead, use parse(std::basic_istream&)") + static basic_json parse_stream(std::basic_istream& is) + { + return parse(is); + } + JSONCONS_DEPRECATED_MSG("Instead, use parse(std::basic_istream&, std::function)") + static basic_json parse_stream(std::basic_istream& is, std::function err_handler) + { + return parse(is,err_handler); + } + + JSONCONS_DEPRECATED_MSG("Instead, use parse(const string_view_type&)") + static basic_json parse_string(const string_view_type& s) + { + return parse(s); + } + + JSONCONS_DEPRECATED_MSG("Instead, use parse(parse(const string_view_type&, std::function)") + static const basic_json parse_string(const string_view_type& s, std::function err_handler) + { + return parse(s,err_handler); + } + + JSONCONS_DEPRECATED_MSG("Instead, use basic_json(double)") + basic_json(double val, uint8_t) + : basic_json(val, semantic_tag::none) + { + } + + JSONCONS_DEPRECATED_MSG("Instead, use basic_json(const byte_string_view& ,semantic_tag)") + basic_json(const byte_string_view& bytes, + byte_string_chars_format encoding_hint, + semantic_tag tag = semantic_tag::none) + : basic_json(bytes, tag) + { + switch (encoding_hint) + { + case byte_string_chars_format::base16: + *this = basic_json(bytes, semantic_tag::base16); + break; + case byte_string_chars_format::base64: + *this = basic_json(bytes, semantic_tag::base64); + break; + case byte_string_chars_format::base64url: + *this = basic_json(bytes, semantic_tag::base64url); + break; + default: + break; + } + } + + template + basic_json(InputIterator first, InputIterator last, const Allocator& alloc = Allocator()) + : basic_json(json_array_arg,first,last,alloc) + { + } + JSONCONS_DEPRECATED_MSG("Instead, use dump(basic_json_visitor&)") + void dump_fragment(basic_json_visitor& visitor) const + { + dump(visitor); + } + + JSONCONS_DEPRECATED_MSG("Instead, use dump(basic_json_visitor&)") + void dump_body(basic_json_visitor& visitor) const + { + dump(visitor); + } + + JSONCONS_DEPRECATED_MSG("Instead, use dump(std::basic_ostream&, indenting)") + void dump(std::basic_ostream& os, bool pprint) const + { + if (pprint) + { + basic_json_encoder encoder(os); + dump(encoder); + } + else + { + basic_compact_json_encoder encoder(os); + dump(encoder); + } + } + + JSONCONS_DEPRECATED_MSG("Instead, use dump(std::basic_ostream&, const basic_json_encode_options&, indenting)") + void dump(std::basic_ostream& os, const basic_json_encode_options& options, bool pprint) const + { + if (pprint) + { + basic_json_encoder encoder(os, options); + dump(encoder); + } + else + { + basic_compact_json_encoder encoder(os, options); + dump(encoder); + } + } + + JSONCONS_DEPRECATED_MSG("Instead, use dump(basic_json_visitor&)") + void write_body(basic_json_visitor& visitor) const + { + dump(visitor); + } + + JSONCONS_DEPRECATED_MSG("Instead, use dump(basic_json_visitor&)") + void write(basic_json_visitor& visitor) const + { + dump(visitor); + } + + JSONCONS_DEPRECATED_MSG("Instead, use dump(std::basic_ostream&)") + void write(std::basic_ostream& os) const + { + dump(os); + } + + JSONCONS_DEPRECATED_MSG("Instead, use dump(std::basic_ostream&, const basic_json_encode_options&)") + void write(std::basic_ostream& os, const basic_json_encode_options& options) const + { + dump(os,options); + } + + JSONCONS_DEPRECATED_MSG("Instead, use dump(std::basic_ostream&, const basic_json_encode_options&, indenting)") + void write(std::basic_ostream& os, const basic_json_encode_options& options, bool pprint) const + { + dump(os,options,pprint); + } + + JSONCONS_DEPRECATED_MSG("Instead, use dump(basic_json_visitor&)") + void to_stream(basic_json_visitor& visitor) const + { + dump(visitor); + } + + JSONCONS_DEPRECATED_MSG("Instead, use dump(std::basic_ostream&)") + void to_stream(std::basic_ostream& os) const + { + dump(os); + } + + JSONCONS_DEPRECATED_MSG("Instead, use dump(std::basic_ostream&, const basic_json_encode_options&)") + void to_stream(std::basic_ostream& os, const basic_json_encode_options& options) const + { + dump(os,options); + } + + JSONCONS_DEPRECATED_MSG("Instead, use dump(std::basic_ostream&, const basic_json_encode_options&, indenting)") + void to_stream(std::basic_ostream& os, const basic_json_encode_options& options, bool pprint) const + { + dump(os,options,pprint ? indenting::indent : indenting::no_indent); + } + + JSONCONS_DEPRECATED_MSG("No replacement") + std::size_t precision() const + { + switch (storage_kind()) + { + case json_storage_kind::double_value: + return 0; + default: + JSONCONS_THROW(json_runtime_error("Not a double")); + } + } + + JSONCONS_DEPRECATED_MSG("No replacement") + std::size_t decimal_places() const + { + switch (storage_kind()) + { + case json_storage_kind::double_value: + return 0; + default: + JSONCONS_THROW(json_runtime_error("Not a double")); + } + } + + JSONCONS_DEPRECATED_MSG("Instead, use tag() == semantic_tag::datetime") + bool is_datetime() const noexcept + { + return tag() == semantic_tag::datetime; + } + + JSONCONS_DEPRECATED_MSG("Instead, use tag() == semantic_tag::epoch_second") + bool is_epoch_time() const noexcept + { + return tag() == semantic_tag::epoch_second; + } + + JSONCONS_DEPRECATED_MSG("Instead, use contains(const string_view_type&)") + bool has_key(const string_view_type& name) const noexcept + { + return contains(name); + } + + JSONCONS_DEPRECATED_MSG("Instead, use as()") + uint64_t as_uinteger() const + { + return as(); + } + + JSONCONS_DEPRECATED_MSG("No replacement") + std::size_t double_precision() const + { + switch (storage_kind()) + { + case json_storage_kind::double_value: + return 0; + default: + JSONCONS_THROW(json_runtime_error("Not a double")); + } + } + + JSONCONS_DEPRECATED_MSG("Instead, use insert(const_array_iterator, T&&)") + void add(std::size_t index, const basic_json& value) + { + evaluate_with_default().add(index, value); + } + + JSONCONS_DEPRECATED_MSG("Instead, use insert(const_array_iterator, T&&)") + void add(std::size_t index, basic_json&& value) + { + evaluate_with_default().add(index, std::forward(value)); + } + + template + JSONCONS_DEPRECATED_MSG("Instead, use push_back(T&&)") + void add(T&& val) + { + push_back(std::forward(val)); + } + + template + JSONCONS_DEPRECATED_MSG("Instead, use insert(const_array_iterator, T&&)") + array_iterator add(const_array_iterator pos, T&& val) + { + return insert(pos, std::forward(val)); + } + + template + JSONCONS_DEPRECATED_MSG("Instead, use insert_or_assign(const string_view_type&, T&&)") + std::pair set(const string_view_type& name, T&& val) + { + return insert_or_assign(name, std::forward(val)); + } + + template + JSONCONS_DEPRECATED_MSG("Instead, use insert_or_assign(const string_view_type&, T&&)") + object_iterator set(object_iterator hint, const string_view_type& name, T&& val) + { + return insert_or_assign(hint, name, std::forward(val)); + } + + JSONCONS_DEPRECATED_MSG("Instead, use resize(std::size_t)") + void resize_array(std::size_t n) + { + resize(n); + } + + template + JSONCONS_DEPRECATED_MSG("Instead, use resize(std::size_t, T)") + void resize_array(std::size_t n, T val) + { + resize(n,val); + } + + JSONCONS_DEPRECATED_MSG("Instead, use object_range().begin()") + object_iterator begin_members() + { + return object_range().begin(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use object_range().begin()") + const_object_iterator begin_members() const + { + return object_range().begin(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use object_range().end()") + object_iterator end_members() + { + return object_range().end(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use object_range().end()") + const_object_iterator end_members() const + { + return object_range().end(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use array_range().begin()") + array_iterator begin_elements() + { + return array_range().begin(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use array_range().begin()") + const_array_iterator begin_elements() const + { + return array_range().begin(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use array_range().end()") + array_iterator end_elements() + { + return array_range().end(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use array_range().end()") + const_array_iterator end_elements() const + { + return array_range().end(); + } + + template + JSONCONS_DEPRECATED_MSG("Instead, use get_with_default(const string_view_type&, T&&)") + basic_json get(const string_view_type& name, T&& default_value) const + { + switch (storage_kind()) + { + case json_storage_kind::empty_object_value: + { + return basic_json(std::forward(default_value)); + } + case json_storage_kind::object_value: + { + auto it = object_value().find(name); + if (it != object_value().end()) + { + return it->value(); + } + else + { + return basic_json(std::forward(default_value)); + } + } + default: + { + JSONCONS_THROW(not_an_object(name.data(),name.length())); + } + } + } + + JSONCONS_DEPRECATED_MSG("Instead, use at_or_null(const string_view_type&)") + const basic_json& get(const string_view_type& name) const + { + static const basic_json a_null = null_type(); + + switch (storage_kind()) + { + case json_storage_kind::empty_object_value: + return a_null; + case json_storage_kind::object_value: + { + auto it = object_value().find(name); + return it != object_value().end() ? it->value() : a_null; + } + default: + { + JSONCONS_THROW(not_an_object(name.data(),name.length())); + } + } + } + + JSONCONS_DEPRECATED_MSG("Instead, use is()") + bool is_longlong() const noexcept + { + return is(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use is()") + bool is_ulonglong() const noexcept + { + return is(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use as()") + long long as_longlong() const + { + return as(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use as()") + unsigned long long as_ulonglong() const + { + return as(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use as()") + int as_int() const + { + return as(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use as()") + unsigned int as_uint() const + { + return as(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use as()") + long as_long() const + { + return as(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use as()") + unsigned long as_ulong() const + { + return as(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use contains(const string_view_type&)") + bool has_member(const string_view_type& key) const noexcept + { + return contains(key); + } + + JSONCONS_DEPRECATED_MSG("Instead, use erase(const_object_iterator, const_object_iterator)") + void remove_range(std::size_t from_index, std::size_t to_index) + { + switch (storage_kind()) + { + case json_storage_kind::array_value: + array_value().remove_range(from_index, to_index); + break; + default: + break; + } + } + + JSONCONS_DEPRECATED_MSG("Instead, use erase(const string_view_type& name)") + void remove(const string_view_type& name) + { + erase(name); + } + + JSONCONS_DEPRECATED_MSG("Instead, use erase(const string_view_type& name)") + void remove_member(const string_view_type& name) + { + erase(name); + } + // Removes a member from an object value + + JSONCONS_DEPRECATED_MSG("Instead, use empty()") + bool is_empty() const noexcept + { + return empty(); + } + JSONCONS_DEPRECATED_MSG("Instead, use is_number()") + bool is_numeric() const noexcept + { + return is_number(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use object_range()") + range members() + { + return object_range(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use object_range()") + range members() const + { + return object_range(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use array_range()") + range elements() + { + return array_range(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use array_range()") + range elements() const + { + return array_range(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use storage_kind()") + json_storage_kind get_stor_type() const + { + return storage_kind(); + } + #endif + + range object_range() + { + switch (storage_kind()) + { + case json_storage_kind::empty_object_value: + return range(object_iterator(), object_iterator()); + case json_storage_kind::object_value: + return range(object_iterator(object_value().begin()), + object_iterator(object_value().end())); + default: + JSONCONS_THROW(json_runtime_error("Not an object")); + } + } + + range object_range() const + { + switch (storage_kind()) + { + case json_storage_kind::empty_object_value: + return range(const_object_iterator(), const_object_iterator()); + case json_storage_kind::object_value: + return range(const_object_iterator(object_value().begin()), + const_object_iterator(object_value().end())); + case json_storage_kind::json_const_pointer: + return cast().value()->object_range(); + default: + JSONCONS_THROW(json_runtime_error("Not an object")); + } + } + + range array_range() + { + switch (storage_kind()) + { + case json_storage_kind::array_value: + return range(array_value().begin(),array_value().end()); + default: + JSONCONS_THROW(json_runtime_error("Not an array")); + } + } + + range array_range() const + { + switch (storage_kind()) + { + case json_storage_kind::array_value: + return range(array_value().begin(),array_value().end()); + case json_storage_kind::json_const_pointer: + return cast().value()->array_range(); + default: + JSONCONS_THROW(json_runtime_error("Not an array")); + } + } + + array& array_value() + { + switch (storage_kind()) + { + case json_storage_kind::array_value: + return cast().value(); + default: + JSONCONS_THROW(json_runtime_error("Bad array cast")); + break; + } + } + + const array& array_value() const + { + switch (storage_kind()) + { + case json_storage_kind::array_value: + return cast().value(); + case json_storage_kind::json_const_pointer: + return cast().value()->array_value(); + default: + JSONCONS_THROW(json_runtime_error("Bad array cast")); + break; + } + } + + object& object_value() + { + switch (storage_kind()) + { + case json_storage_kind::empty_object_value: + create_object_implicitly(); + JSONCONS_FALLTHROUGH; + case json_storage_kind::object_value: + return cast().value(); + default: + JSONCONS_THROW(json_runtime_error("Bad object cast")); + break; + } + } + + const object& object_value() const + { + switch (storage_kind()) + { + case json_storage_kind::empty_object_value: + const_cast(this)->create_object_implicitly(); // HERE + JSONCONS_FALLTHROUGH; + case json_storage_kind::object_value: + return cast().value(); + case json_storage_kind::json_const_pointer: + return cast().value()->object_value(); + default: + JSONCONS_THROW(json_runtime_error("Bad object cast")); + break; + } + } + + private: + + void dump_noflush(basic_json_visitor& visitor, std::error_code& ec) const + { + const ser_context context{}; + switch (storage_kind()) + { + case json_storage_kind::short_string_value: + case json_storage_kind::long_string_value: + visitor.string_value(as_string_view(), tag(), context, ec); + break; + case json_storage_kind::byte_string_value: + if (tag() == semantic_tag::ext) + { + visitor.byte_string_value(as_byte_string_view(), ext_tag(), context, ec); + } + else + { + visitor.byte_string_value(as_byte_string_view(), tag(), context, ec); + } + break; + case json_storage_kind::half_value: + visitor.half_value(cast().value(), tag(), context, ec); + break; + case json_storage_kind::double_value: + visitor.double_value(cast().value(), + tag(), context, ec); + break; + case json_storage_kind::int64_value: + visitor.int64_value(cast().value(), tag(), context, ec); + break; + case json_storage_kind::uint64_value: + visitor.uint64_value(cast().value(), tag(), context, ec); + break; + case json_storage_kind::bool_value: + visitor.bool_value(cast().value(), tag(), context, ec); + break; + case json_storage_kind::null_value: + visitor.null_value(tag(), context, ec); + break; + case json_storage_kind::empty_object_value: + visitor.begin_object(0, tag(), context, ec); + visitor.end_object(context, ec); + break; + case json_storage_kind::object_value: + { + bool more = visitor.begin_object(size(), tag(), context, ec); + const object& o = object_value(); + for (auto it = o.begin(); more && it != o.end(); ++it) + { + visitor.key(string_view_type((it->key()).data(),it->key().length()), context, ec); + it->value().dump_noflush(visitor, ec); + } + if (more) + { + visitor.end_object(context, ec); + } + break; + } + case json_storage_kind::array_value: + { + bool more = visitor.begin_array(size(), tag(), context, ec); + const array& o = array_value(); + for (const_array_iterator it = o.begin(); more && it != o.end(); ++it) + { + it->dump_noflush(visitor, ec); + } + if (more) + { + visitor.end_array(context, ec); + } + break; + } + case json_storage_kind::json_const_pointer: + return cast().value()->dump_noflush(visitor, ec); + default: + break; + } + } + + friend std::basic_ostream& operator<<(std::basic_ostream& os, const basic_json& o) + { + o.dump(os); + return os; + } + + friend std::basic_istream& operator>>(std::basic_istream& is, basic_json& o) + { + json_decoder visitor; + basic_json_reader> reader(is, visitor); + reader.read_next(); + reader.check_done(); + if (!visitor.is_valid()) + { + JSONCONS_THROW(json_runtime_error("Failed to parse json stream")); + } + o = visitor.get_result(); + return is; + } + + friend basic_json deep_copy(const basic_json& other) + { + switch (other.storage_kind()) + { + case json_storage_kind::array_value: + { + basic_json j(json_array_arg, other.tag(), other.get_allocator()); + j.reserve(other.size()); + + for (const auto& item : other.array_range()) + { + j.push_back(deep_copy(item)); + } + return j; + } + case json_storage_kind::object_value: + { + basic_json j(json_object_arg, other.tag(), other.get_allocator()); + j.reserve(other.size()); + + for (const auto& item : other.object_range()) + { + j.try_emplace(item.key(), deep_copy(item.value())); + } + return j; + } + case json_storage_kind::json_const_pointer: + return deep_copy(*(other.cast().value())); + default: + return other; + } + } + }; + + // operator== + + template + typename std::enable_if::value,bool>::type + operator==(const Json& lhs, const Json& rhs) noexcept + { + return lhs.compare(rhs) == 0; + } + + template + typename std::enable_if::value && std::is_convertible::value,bool>::type + operator==(const Json& lhs, const T& rhs) + { + return lhs.compare(rhs) == 0; + } + + template + typename std::enable_if::value && std::is_convertible::value,bool>::type + operator==(const Json& lhs, const T& rhs) + { + return lhs.evaluate().compare(rhs) == 0; + } + + template + typename std::enable_if::value && !is_proxy::value && !type_traits::is_basic_json::value && std::is_convertible::value,bool>::type + operator==(const T& lhs, const Json& rhs) + { + return rhs.compare(lhs) == 0; + } + + template + typename std::enable_if::value && !is_proxy::value && !type_traits::is_basic_json::value && std::is_convertible::value,bool>::type + operator==(const T& lhs, const Json& rhs) + { + return rhs.evaluate().compare(lhs) == 0; + } + + // operator!= + + template + typename std::enable_if::value,bool>::type + operator!=(const Json& lhs, const Json& rhs) noexcept + { + return lhs.compare(rhs) != 0; + } + + template + typename std::enable_if::value && std::is_convertible::value,bool>::type + operator!=(const Json& lhs, const T& rhs) + { + return lhs.compare(rhs) != 0; + } + + template + typename std::enable_if::value && std::is_convertible::value,bool>::type + operator!=(const Json& lhs, const T& rhs) + { + return lhs.evaluate().compare(rhs) != 0; + } + + template + typename std::enable_if::value && !is_proxy::value && !type_traits::is_basic_json::value && std::is_convertible::value,bool>::type + operator!=(const T& lhs, const Json& rhs) + { + return rhs.compare(lhs) != 0; + } + + template + typename std::enable_if::value && !is_proxy::value && !type_traits::is_basic_json::value && std::is_convertible::value,bool>::type + operator!=(const T& lhs, const Json& rhs) + { + return rhs.evaluate().compare(lhs) != 0; + } + + // operator< + + template + typename std::enable_if::value,bool>::type + operator<(const Json& lhs, const Json& rhs) noexcept + { + return lhs.compare(rhs) < 0; + } + + template + typename std::enable_if::value && std::is_convertible::value,bool>::type + operator<(const Json& lhs, const T& rhs) + { + return lhs.compare(rhs) < 0; + } + + template + typename std::enable_if::value && std::is_convertible::value,bool>::type + operator<(const Json& lhs, const T& rhs) + { + return lhs.evaluate().compare(rhs) < 0; + } + + template + typename std::enable_if::value && !is_proxy::value && !type_traits::is_basic_json::value && std::is_convertible::value,bool>::type + operator<(const T& lhs, const Json& rhs) + { + return rhs.compare(lhs) > 0; + } + + template + typename std::enable_if::value && !is_proxy::value && !type_traits::is_basic_json::value && std::is_convertible::value,bool>::type + operator<(const T& lhs, const Json& rhs) + { + return rhs.evaluate().compare(lhs) > 0; + } + + // operator<= + + template + typename std::enable_if::value,bool>::type + operator<=(const Json& lhs, const Json& rhs) noexcept + { + return lhs.compare(rhs) <= 0; + } + + template + typename std::enable_if::value && std::is_convertible::value,bool>::type + operator<=(const Json& lhs, const T& rhs) + { + return lhs.compare(rhs) <= 0; + } + + template + typename std::enable_if::value && std::is_convertible::value,bool>::type + operator<=(const Json& lhs, const T& rhs) + { + return lhs.evaluate().compare(rhs) <= 0; + } + + template + typename std::enable_if::value && !is_proxy::value && !type_traits::is_basic_json::value && std::is_convertible::value,bool>::type + operator<=(const T& lhs, const Json& rhs) + { + return rhs.compare(lhs) >= 0; + } + + template + typename std::enable_if::value && !is_proxy::value && !type_traits::is_basic_json::value && std::is_convertible::value,bool>::type + operator<=(const T& lhs, const Json& rhs) + { + return rhs.evaluate().compare(lhs) >= 0; + } + + // operator> + + template + typename std::enable_if::value,bool>::type + operator>(const Json& lhs, const Json& rhs) noexcept + { + return lhs.compare(rhs) > 0; + } + + template + typename std::enable_if::value && std::is_convertible::value,bool>::type + operator>(const Json& lhs, const T& rhs) + { + return lhs.compare(rhs) > 0; + } + + template + typename std::enable_if::value && std::is_convertible::value,bool>::type + operator>(const Json& lhs, const T& rhs) + { + return lhs.evaluate().compare(rhs) > 0; + } + + template + typename std::enable_if::value && !is_proxy::value && !type_traits::is_basic_json::value && std::is_convertible::value,bool>::type + operator>(const T& lhs, const Json& rhs) + { + return rhs.compare(lhs) < 0; + } + + template + typename std::enable_if::value && !is_proxy::value && !type_traits::is_basic_json::value && std::is_convertible::value,bool>::type + operator>(const T& lhs, const Json& rhs) + { + return rhs.evaluate().compare(lhs) < 0; + } + + // operator>= + + template + typename std::enable_if::value,bool>::type + operator>=(const Json& lhs, const Json& rhs) noexcept + { + return lhs.compare(rhs) >= 0; + } + + template + typename std::enable_if::value && std::is_convertible::value,bool>::type + operator>=(const Json& lhs, const T& rhs) + { + return lhs.compare(rhs) >= 0; + } + + template + typename std::enable_if::value && std::is_convertible::value,bool>::type + operator>=(const Json& lhs, const T& rhs) + { + return lhs.evaluate().compare(rhs) >= 0; + } + + template + typename std::enable_if::value && !is_proxy::value && !type_traits::is_basic_json::value && std::is_convertible::value,bool>::type + operator>=(const T& lhs, const Json& rhs) + { + return rhs.compare(lhs) <= 0; + } + + template + typename std::enable_if::value && !is_proxy::value && !type_traits::is_basic_json::value && std::is_convertible::value,bool>::type + operator>=(const T& lhs, const Json& rhs) + { + return rhs.evaluate().compare(lhs) <= 0; + } + + // swap + + template + void swap(typename Json::key_value_type& a, typename Json::key_value_type& b) noexcept + { + a.swap(b); + } + + using json = basic_json>; + using wjson = basic_json>; + using ojson = basic_json>; + using wojson = basic_json>; + + #if !defined(JSONCONS_NO_DEPRECATED) + JSONCONS_DEPRECATED_MSG("Instead, use wojson") typedef basic_json> owjson; + JSONCONS_DEPRECATED_MSG("Instead, use json_decoder") typedef json_decoder json_deserializer; + JSONCONS_DEPRECATED_MSG("Instead, use json_decoder") typedef json_decoder wjson_deserializer; + JSONCONS_DEPRECATED_MSG("Instead, use json_decoder") typedef json_decoder ojson_deserializer; + JSONCONS_DEPRECATED_MSG("Instead, use json_decoder") typedef json_decoder wojson_deserializer; + #endif + + inline namespace literals { + + inline + jsoncons::json operator "" _json(const char* s, std::size_t n) + { + return jsoncons::json::parse(jsoncons::json::string_view_type(s, n)); + } + + inline + jsoncons::wjson operator "" _json(const wchar_t* s, std::size_t n) + { + return jsoncons::wjson::parse(jsoncons::wjson::string_view_type(s, n)); + } + + inline + jsoncons::ojson operator "" _ojson(const char* s, std::size_t n) + { + return jsoncons::ojson::parse(jsoncons::ojson::string_view_type(s, n)); + } + + inline + jsoncons::wojson operator "" _ojson(const wchar_t* s, std::size_t n) + { + return jsoncons::wojson::parse(jsoncons::wojson::string_view_type(s, n)); + } + + } // inline namespace literals + +} // namespace jsoncons + +#endif diff --git a/include/jsoncons/bigint.hpp b/include/jsoncons/bigint.hpp new file mode 100644 index 0000000..223b697 --- /dev/null +++ b/include/jsoncons/bigint.hpp @@ -0,0 +1,1611 @@ +// Copyright 2018 vDaniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_BIGINT_HPP +#define JSONCONS_BIGINT_HPP + +#include +#include // std::vector +#include +#include +#include // assert +#include // std::numeric_limits +#include // std::max, std::min, std::reverse +#include // std::string +#include // std::memcpy +#include // std::fmod +#include // std::allocator +#include // std::initializer_list +#include // std::enable_if +#include + +namespace jsoncons { + +/* +This implementation is based on Chapter 2 and Appendix A of +Ammeraal, L. (1996) Algorithms and Data Structures in C++, +Chichester: John Wiley. + +*/ + + +namespace detail { + + template + class basic_bigint_base + { + public: + using allocator_type = Allocator; + using basic_type_allocator_type = typename std::allocator_traits:: template rebind_alloc; + + private: + basic_type_allocator_type alloc_; + public: + using allocator_traits_type = std::allocator_traits; + using stored_allocator_type = allocator_type; + using pointer = typename allocator_traits_type::pointer; + using value_type = typename allocator_traits_type::value_type; + using size_type = typename allocator_traits_type::size_type; + using pointer_traits = std::pointer_traits; + + basic_bigint_base() + : alloc_() + { + } + explicit basic_bigint_base(const allocator_type& alloc) + : alloc_(basic_type_allocator_type(alloc)) + { + } + + basic_type_allocator_type get_allocator() const + { + return alloc_; + } + }; + +} // namespace detail + +template > +class basic_bigint : protected detail::basic_bigint_base +{ + using base_t = detail::basic_bigint_base; + +public: + + using size_type = typename base_t::size_type; + using value_type = typename base_t::value_type; + using base_t::get_allocator; + using bigint_type = basic_bigint; + + static constexpr uint64_t max_basic_type = (std::numeric_limits::max)(); + static constexpr uint64_t basic_type_bits = sizeof(uint64_t) * 8; // Number of bits + static constexpr uint64_t basic_type_halfBits = basic_type_bits/2; + + static constexpr uint16_t word_length = 4; // Use multiples of word_length words + static constexpr uint64_t r_mask = (uint64_t(1) << basic_type_halfBits) - 1; + static constexpr uint64_t l_mask = max_basic_type - r_mask; + static constexpr uint64_t l_bit = max_basic_type - (max_basic_type >> 1); + +private: + + struct common_storage + { + uint8_t is_dynamic_:1; + uint8_t is_negative_:1; + size_type length_; + }; + + struct short_storage + { + uint8_t is_dynamic_:1; + uint8_t is_negative_:1; + size_type length_; + uint64_t values_[2]; + + short_storage() + : is_dynamic_(false), + is_negative_(false), + length_(0), + values_{0,0} + { + } + + template + short_storage(T n, + typename std::enable_if::value && + sizeof(T) <= sizeof(int64_t) && + std::is_signed::value>::type* = 0) + : is_dynamic_(false), + is_negative_(n < 0), + length_(n == 0 ? 0 : 1) + { + values_[0] = n < 0 ? (uint64_t(0)-static_cast(n)) : static_cast(n); + values_[1] = 0; + } + + template + short_storage(T n, + typename std::enable_if::value && + sizeof(T) <= sizeof(int64_t) && + !std::is_signed::value>::type* = 0) + : is_dynamic_(false), + is_negative_(false), + length_(n == 0 ? 0 : 1) + { + values_[0] = n; + values_[1] = 0; + } + + template + short_storage(T n, + typename std::enable_if::value && + sizeof(int64_t) < sizeof(T) && + std::is_signed::value>::type* = 0) + : is_dynamic_(false), + is_negative_(n < 0), + length_(n == 0 ? 0 : 2) + { + using unsigned_type = typename std::make_unsigned::type; + + auto u = n < 0 ? (unsigned_type(0)-static_cast(n)) : static_cast(n); + values_[0] = uint64_t(u & max_basic_type);; + u >>= basic_type_bits; + values_[1] = uint64_t(u & max_basic_type);; + } + + template + short_storage(T n, + typename std::enable_if::value && + sizeof(int64_t) < sizeof(T) && + !std::is_signed::value>::type* = 0) + : is_dynamic_(false), + is_negative_(false), + length_(n == 0 ? 0 : 2) + { + values_[0] = uint64_t(n & max_basic_type);; + n >>= basic_type_bits; + values_[1] = uint64_t(n & max_basic_type);; + } + + short_storage(const short_storage& stor) + : is_dynamic_(false), + is_negative_(stor.is_negative_), + length_(stor.length_) + { + values_[0] = stor.values_[0]; + values_[1] = stor.values_[1]; + } + + short_storage& operator=(const short_storage& stor) = delete; + }; + + struct dynamic_storage + { + using real_allocator_type = typename std::allocator_traits:: template rebind_alloc; + using pointer = typename std::allocator_traits::pointer; + + uint8_t is_dynamic_:1; + uint8_t is_negative_:1; + size_type length_; + size_type capacity_; + pointer data_; + + dynamic_storage() + : is_dynamic_(true), + is_negative_(false), + length_(0), + capacity_(0), + data_(nullptr) + { + } + + dynamic_storage(const dynamic_storage& stor, const real_allocator_type& alloc) + : is_dynamic_(true), + is_negative_(stor.is_negative_), + length_(stor.length_), + capacity_(0), + data_(nullptr) + { + create(stor.length_, alloc); + std::memcpy(data_, stor.data_, stor.length_*sizeof(uint64_t)); + } + + dynamic_storage(dynamic_storage&& stor) noexcept + : is_dynamic_(true), + is_negative_(stor.is_negative_), + length_(stor.length_), + capacity_(stor.capacity_), + data_(stor.data_) + { + stor.length_ = 0; + stor.capacity_ = 0; + stor.data_ = nullptr; + } + + void create(size_type length, real_allocator_type alloc) + { + capacity_ = round_up(length); + data_ = std::allocator_traits::allocate(alloc, capacity_); + JSONCONS_TRY + { + std::allocator_traits::construct(alloc, type_traits::to_plain_pointer(data_)); + } + JSONCONS_CATCH(...) + { + std::allocator_traits::deallocate(alloc, data_, capacity_); + JSONCONS_RETHROW; + } + } + + void destroy(const real_allocator_type& a) noexcept + { + if (data_ != nullptr) + { + real_allocator_type alloc(a); + + std::allocator_traits::destroy(alloc, type_traits::to_plain_pointer(data_)); + std::allocator_traits::deallocate(alloc, data_,capacity_); + } + } + + void reserve(size_type n, const real_allocator_type& a) + { + real_allocator_type alloc(a); + + size_type capacity_new = round_up(n); + uint64_t* data_old = data_; + data_ = std::allocator_traits::allocate(alloc, capacity_new); + if (length_ > 0) + { + std::memcpy( data_, data_old, length_*sizeof(uint64_t)); + } + if (capacity_ > 0 && data_ != nullptr) + { + std::allocator_traits::deallocate(alloc, data_old, capacity_); + } + capacity_ = capacity_new; + } + + // Find suitable new block size + constexpr size_type round_up(size_type i) const + { + return (i/word_length + 1) * word_length; + } + }; + + union + { + common_storage common_stor_; + short_storage short_stor_; + dynamic_storage dynamic_stor_; + }; + +public: + basic_bigint() + { + ::new (&short_stor_) short_storage(); + } + + explicit basic_bigint(const Allocator& alloc) + : base_t(alloc) + { + ::new (&short_stor_) short_storage(); + } + + + basic_bigint(const basic_bigint& n) + : base_t(n.get_allocator()) + { + if (!n.is_dynamic()) + { + ::new (&short_stor_) short_storage(n.short_stor_); + } + else + { + ::new (&dynamic_stor_) dynamic_storage(n.dynamic_stor_, get_allocator()); + } + } + + basic_bigint(basic_bigint&& other) noexcept + : base_t(other.get_allocator()) + { + if (!other.is_dynamic()) + { + ::new (&short_stor_) short_storage(other.short_stor_); + } + else + { + ::new (&dynamic_stor_) dynamic_storage(std::move(other.dynamic_stor_)); + } + } + + template + basic_bigint(Integer n, + typename std::enable_if::value>::type* = 0) + { + ::new (&short_stor_) short_storage(n); + } + + ~basic_bigint() noexcept + { + destroy(); + } + + constexpr bool is_dynamic() const + { + return common_stor_.is_dynamic_; + } + + constexpr size_type length() const + { + return common_stor_.length_; + } + + constexpr size_type capacity() const + { + return is_dynamic() ? dynamic_stor_.capacity_ : 2; + } + + bool is_negative() const + { + return common_stor_.is_negative_; + } + + void is_negative(bool value) + { + common_stor_.is_negative_ = value; + } + + constexpr const uint64_t* data() const + { + return is_dynamic() ? dynamic_stor_.data_ : short_stor_.values_; + } + + uint64_t* data() + { + return is_dynamic() ? dynamic_stor_.data_ : short_stor_.values_; + } + + template + static basic_bigint from_string(const std::basic_string& s) + { + return from_string(s.data(), s.length()); + } + + template + static basic_bigint from_string(const CharT* s) + { + return from_string(s, std::char_traits::length(s)); + } + + template + static basic_bigint from_string(const CharT* data, size_type length) + { + bool neg; + if (*data == '-') + { + neg = true; + data++; + --length; + } + else + { + neg = false; + } + + basic_bigint v = 0; + for (size_type i = 0; i < length; i++) + { + CharT c = data[i]; + switch (c) + { + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': + v = (v * 10) + (uint64_t)(c - '0'); + break; + default: + JSONCONS_THROW(std::runtime_error(std::string("Invalid digit ") + "\'" + (char)c + "\'")); + } + } + + if (neg) + { + v.common_stor_.is_negative_ = true; + } + + return v; + } + + template + static basic_bigint from_string_radix(const CharT* data, size_type length, uint8_t radix) + { + if (!(radix >= 2 && radix <= 16)) + { + JSONCONS_THROW(std::runtime_error("Unsupported radix")); + } + + bool neg; + if (*data == '-') + { + neg = true; + data++; + --length; + } + else + { + neg = false; + } + + basic_bigint v = 0; + for (size_type i = 0; i < length; i++) + { + CharT c = data[i]; + uint64_t d; + switch (c) + { + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': + d = (uint64_t)(c - '0'); + break; + case 'a':case 'b':case 'c':case 'd':case 'e':case 'f': + d = (uint64_t)(c - ('a' - 10)); + break; + case 'A':case 'B':case 'C':case 'D':case 'E':case 'F': + d = (uint64_t)(c - ('A' - 10)); + break; + default: + JSONCONS_THROW(std::runtime_error(std::string("Invalid digit in radix ") + std::to_string(radix) + ": \'" + (char)c + "\'")); + } + if (d >= radix) + { + JSONCONS_THROW(std::runtime_error(std::string("Invalid digit in radix ") + std::to_string(radix) + ": \'" + (char)c + "\'")); + } + v = (v * radix) + d; + } + + if ( neg ) + { + v.common_stor_.is_negative_ = true; + } + return v; + } + + static basic_bigint from_bytes_be(int signum, const uint8_t* str, std::size_t n) + { + static const double radix_log2 = std::log2(next_power_of_two(256)); + // Estimate how big the result will be, so we can pre-allocate it. + double bits = radix_log2 * n; + double big_digits = std::ceil(bits / 64.0); + //std::cout << "ESTIMATED: " << big_digits << "\n"; + + bigint_type v = 0; + v.reserve(static_cast(big_digits)); + + if (n > 0) + { + for (std::size_t i = 0; i < n; i++) + { + v = (v * 256) + (uint64_t)(str[i]); + } + } + //std::cout << "ACTUAL: " << v.length() << "\n"; + + if (signum < 0) + { + v.common_stor_.is_negative_ = true; + } + + return v; + } + + uint64_t* begin() { return is_dynamic() ? dynamic_stor_.data_ : short_stor_.values_; } + const uint64_t* begin() const { return is_dynamic() ? dynamic_stor_.data_ : short_stor_.values_; } + uint64_t* end() { return begin() + length(); } + const uint64_t* end() const { return begin() + length(); } + + void resize(size_type n) + { + size_type len_old = common_stor_.length_; + reserve(n); + common_stor_.length_ = n; + if ( common_stor_.length_ > len_old ) + { + memset( data()+len_old, 0, (common_stor_.length_ - len_old)*sizeof(uint64_t) ); + } + } + + void reserve(size_type n) + { + if (capacity() < n) + { + if (!is_dynamic()) + { + size_type size = short_stor_.length_; + size_type is_neg = short_stor_.is_negative_; + uint64_t values[2] = {short_stor_.values_[0], short_stor_.values_[1]}; + + ::new (&dynamic_stor_) dynamic_storage(); + dynamic_stor_.reserve(n, get_allocator()); + dynamic_stor_.length_ = size; + dynamic_stor_.is_negative_ = is_neg; + dynamic_stor_.data_[0] = values[0]; + dynamic_stor_.data_[1] = values[1]; + } + else + { + dynamic_stor_.reserve(n, get_allocator()); + } + } + } + + // operators + + bool operator!() const + { + return length() == 0 ? true : false; + } + + basic_bigint operator-() const + { + basic_bigint v(*this); + v.common_stor_.is_negative_ = !v.is_negative(); + return v; + } + + basic_bigint& operator=( const basic_bigint& y ) + { + if ( this != &y ) + { + resize( y.length() ); + common_stor_.is_negative_ = y.is_negative(); + if ( y.length() > 0 ) + { + std::memcpy( data(), y.data(), y.length()*sizeof(uint64_t) ); + } + } + return *this; + } + + basic_bigint& operator+=( const basic_bigint& y ) + { + if ( is_negative() != y.is_negative() ) + return *this -= -y; + uint64_t d; + uint64_t carry = 0; + + resize( (std::max)(y.length(), length()) + 1 ); + + for (size_type i = 0; i < length(); i++ ) + { + if ( i >= y.length() && carry == 0 ) + break; + d = data()[i] + carry; + carry = d < carry; + if ( i < y.length() ) + { + data()[i] = d + y.data()[i]; + if ( data()[i] < d ) + carry = 1; + } + else + data()[i] = d; + } + reduce(); + return *this; + } + + basic_bigint& operator-=( const basic_bigint& y ) + { + if ( is_negative() != y.is_negative() ) + return *this += -y; + if ( (!is_negative() && y > *this) || (is_negative() && y < *this) ) + return *this = -(y - *this); + uint64_t borrow = 0; + uint64_t d; + for (size_type i = 0; i < length(); i++ ) + { + if ( i >= y.length() && borrow == 0 ) + break; + d = data()[i] - borrow; + borrow = d > data()[i]; + if ( i < y.length()) + { + data()[i] = d - y.data()[i]; + if ( data()[i] > d ) + borrow = 1; + } + else + data()[i] = d; + } + reduce(); + return *this; + } + + basic_bigint& operator*=( int64_t y ) + { + *this *= uint64_t(y < 0 ? -y : y); + if ( y < 0 ) + common_stor_.is_negative_ = !is_negative(); + return *this; + } + + basic_bigint& operator*=( uint64_t y ) + { + size_type len0 = length(); + uint64_t hi; + uint64_t lo; + uint64_t dig = data()[0]; + uint64_t carry = 0; + + resize( length() + 1 ); + + size_type i = 0; + for (i = 0; i < len0; i++ ) + { + DDproduct( dig, y, hi, lo ); + data()[i] = lo + carry; + dig = data()[i+1]; + carry = hi + (data()[i] < lo); + } + data()[i] = carry; + reduce(); + return *this; + } + + basic_bigint& operator*=( basic_bigint y ) + { + if ( length() == 0 || y.length() == 0 ) + return *this = 0; + bool difSigns = is_negative() != y.is_negative(); + if ( length() + y.length() == 2 ) // length() = y.length() = 1 + { + uint64_t a = data()[0], b = y.data()[0]; + data()[0] = a * b; + if ( data()[0] / a != b ) + { + resize( 2 ); + DDproduct( a, b, data()[1], data()[0] ); + } + common_stor_.is_negative_ = difSigns; + return *this; + } + if ( length() == 1 ) // && y.length() > 1 + { + uint64_t digit = data()[0]; + *this = y; + *this *= digit; + } + else + { + if ( y.length() == 1 ) + *this *= y.data()[0]; + else + { + size_type lenProd = length() + y.length(), jA, jB; + uint64_t sumHi = 0, sumLo, hi, lo, + sumLo_old, sumHi_old, carry=0; + basic_bigint x = *this; + resize( lenProd ); // Give *this length lenProd + + for (size_type i = 0; i < lenProd; i++ ) + { + sumLo = sumHi; + sumHi = carry; + carry = 0; + for ( jA=0; jA < x.length(); jA++ ) + { + jB = i - jA; + if ( jB >= 0 && jB < y.length() ) + { + DDproduct( x.data()[jA], y.data()[jB], hi, lo ); + sumLo_old = sumLo; + sumHi_old = sumHi; + sumLo += lo; + if ( sumLo < sumLo_old ) + sumHi++; + sumHi += hi; + carry += (sumHi < sumHi_old); + } + } + data()[i] = sumLo; + } + } + } + reduce(); + common_stor_.is_negative_ = difSigns; + return *this; + } + + basic_bigint& operator/=( const basic_bigint& divisor ) + { + basic_bigint r; + divide( divisor, *this, r, false ); + return *this; + } + + basic_bigint& operator%=( const basic_bigint& divisor ) + { + basic_bigint q; + divide( divisor, q, *this, true ); + return *this; + } + + basic_bigint& operator<<=( uint64_t k ) + { + size_type q = (size_type)(k / basic_type_bits); + if ( q ) // Increase common_stor_.length_ by q: + { + resize(length() + q); + for (size_type i = length(); i-- > 0; ) + data()[i] = ( i < q ? 0 : data()[i - q]); + k %= basic_type_bits; + } + if ( k ) // 0 < k < basic_type_bits: + { + uint64_t k1 = basic_type_bits - k; + uint64_t mask = (uint64_t(1) << k) - uint64_t(1); + resize( length() + 1 ); + for (size_type i = length(); i-- > 0; ) + { + data()[i] <<= k; + if ( i > 0 ) + data()[i] |= (data()[i-1] >> k1) & mask; + } + } + reduce(); + return *this; + } + + basic_bigint& operator>>=(uint64_t k) + { + size_type q = (size_type)(k / basic_type_bits); + if ( q >= length() ) + { + resize( 0 ); + return *this; + } + if (q > 0) + { + memmove( data(), data()+q, (size_type)((length() - q)*sizeof(uint64_t)) ); + resize( length() - q ); + k %= basic_type_bits; + if ( k == 0 ) + { + reduce(); + return *this; + } + } + + size_type n = (size_type)(length() - 1); + int64_t k1 = basic_type_bits - k; + uint64_t mask = (uint64_t(1) << k) - 1; + for (size_type i = 0; i <= n; i++) + { + data()[i] >>= k; + if ( i < n ) + data()[i] |= ((data()[i+1] & mask) << k1); + } + reduce(); + return *this; + } + + basic_bigint& operator++() + { + *this += 1; + return *this; + } + + basic_bigint operator++(int) + { + basic_bigint old = *this; + ++(*this); + return old; + } + + basic_bigint& operator--() + { + *this -= 1; + return *this; + } + + basic_bigint operator--(int) + { + basic_bigint old = *this; + --(*this); + return old; + } + + basic_bigint& operator|=( const basic_bigint& a ) + { + if ( length() < a.length() ) + { + resize( a.length() ); + } + + const uint64_t* qBegin = a.begin(); + const uint64_t* q = a.end() - 1; + uint64_t* p = begin() + a.length() - 1; + + while ( q >= qBegin ) + { + *p-- |= *q--; + } + + reduce(); + + return *this; + } + + basic_bigint& operator^=( const basic_bigint& a ) + { + if ( length() < a.length() ) + { + resize( a.length() ); + } + + const uint64_t* qBegin = a.begin(); + const uint64_t* q = a.end() - 1; + uint64_t* p = begin() + a.length() - 1; + + while ( q >= qBegin ) + { + *p-- ^= *q--; + } + + reduce(); + + return *this; + } + + basic_bigint& operator&=( const basic_bigint& a ) + { + size_type old_length = length(); + + resize( (std::min)( length(), a.length() ) ); + + const uint64_t* pBegin = begin(); + uint64_t* p = end() - 1; + const uint64_t* q = a.begin() + length() - 1; + + while ( p >= pBegin ) + { + *p-- &= *q--; + } + + if ( old_length > length() ) + { + memset( data() + length(), 0, old_length - length() ); + } + + reduce(); + + return *this; + } + + explicit operator bool() const + { + return length() != 0 ? true : false; + } + + explicit operator int64_t() const + { + int64_t x = 0; + if ( length() > 0 ) + { + x = data() [0]; + } + + return is_negative() ? -x : x; + } + + explicit operator uint64_t() const + { + uint64_t u = 0; + if ( length() > 0 ) + { + u = data() [0]; + } + + return u; + } + + explicit operator double() const + { + double x = 0.0; + double factor = 1.0; + double values = (double)max_basic_type + 1.0; + + const uint64_t* p = begin(); + const uint64_t* pEnd = end(); + while ( p < pEnd ) + { + x += *p*factor; + factor *= values; + ++p; + } + + return is_negative() ? -x : x; + } + + explicit operator long double() const + { + long double x = 0.0; + long double factor = 1.0; + long double values = (long double)max_basic_type + 1.0; + + const uint64_t* p = begin(); + const uint64_t* pEnd = end(); + while ( p < pEnd ) + { + x += *p*factor; + factor *= values; + ++p; + } + + return is_negative() ? -x : x; + } + + template + void write_bytes_be(int& signum, std::vector& data) const + { + basic_bigint n(*this); + signum = (n < 0) ? -1 : (n > 0 ? 1 : 0); + + basic_bigint divisor(256); + + while (n >= 256) + { + basic_bigint q; + basic_bigint r; + n.divide(divisor, q, r, true); + n = q; + data.push_back((uint8_t)(uint64_t)r); + } + if (n >= 0) + { + data.push_back((uint8_t)(uint64_t)n); + } + std::reverse(data.begin(),data.end()); + } + + std::string to_string() const + { + std::string s; + write_string(s); + return s; + } + + template + void write_string(std::basic_string& data) const + { + basic_bigint v(*this); + + size_t len = (v.length() * basic_type_bits / 3) + 2; + data.reserve(len); + + static uint64_t p10 = 1; + static uint64_t ip10 = 0; + + if ( v.length() == 0 ) + { + data.push_back('0'); + } + else + { + uint64_t r; + if ( p10 == 1 ) + { + while ( p10 <= (std::numeric_limits::max)()/10 ) + { + p10 *= 10; + ip10++; + } + } + // p10 is max unsigned power of 10 + basic_bigint R; + basic_bigint LP10 = p10; // LP10 = p10 = ::pow(10, ip10) + + do + { + v.divide( LP10, v, R, true ); + r = (R.length() ? R.data()[0] : 0); + for ( size_type j=0; j < ip10; j++ ) + { + data.push_back(char(r % 10 + '0')); + r /= 10; + if ( r + v.length() == 0 ) + break; + } + } + while ( v.length() ); + if (is_negative()) + { + data.push_back('-'); + } + std::reverse(data.begin(),data.end()); + } + } + + std::string to_string_hex() const + { + std::string s; + write_string_hex(s); + return s; + } + + template + void write_string_hex(std::basic_string& data) const + { + basic_bigint v(*this); + + std::size_t len = (v.length() * basic_bigint::basic_type_bits / 3) + 2; + data.reserve(len); + // 1/3 > ln(2)/ln(10) + static uint64_t p10 = 1; + static uint64_t ip10 = 0; + + if ( v.length() == 0 ) + { + data.push_back('0'); + } + else + { + uint64_t r; + if ( p10 == 1 ) + { + while ( p10 <= (std::numeric_limits::max)()/16 ) + { + p10 *= 16; + ip10++; + } + } // p10 is max unsigned power of 16 + basic_bigint R; + basic_bigint LP10 = p10; // LP10 = p10 = ::pow(16, ip10) + do + { + v.divide( LP10, v, R, true ); + r = (R.length() ? R.data()[0] : 0); + for ( size_type j=0; j < ip10; j++ ) + { + uint8_t c = r % 16; + data.push_back((c < 10) ? ('0' + c) : ('A' - 10 + c)); + r /= 16; + if ( r + v.length() == 0 ) + break; + } + } + while (v.length()); + + if (is_negative()) + { + data.push_back('-'); + } + std::reverse(data.begin(),data.end()); + } + } + +// Global Operators + + friend bool operator==( const basic_bigint& x, const basic_bigint& y ) noexcept + { + return x.compare(y) == 0 ? true : false; + } + + friend bool operator==( const basic_bigint& x, int y ) noexcept + { + return x.compare(y) == 0 ? true : false; + } + + friend bool operator!=( const basic_bigint& x, const basic_bigint& y ) noexcept + { + return x.compare(y) != 0 ? true : false; + } + + friend bool operator!=( const basic_bigint& x, int y ) noexcept + { + return x.compare(basic_bigint(y)) != 0 ? true : false; + } + + friend bool operator<( const basic_bigint& x, const basic_bigint& y ) noexcept + { + return x.compare(y) < 0 ? true : false; + } + + friend bool operator<( const basic_bigint& x, int64_t y ) noexcept + { + return x.compare(y) < 0 ? true : false; + } + + friend bool operator>( const basic_bigint& x, const basic_bigint& y ) noexcept + { + return x.compare(y) > 0 ? true : false; + } + + friend bool operator>( const basic_bigint& x, int y ) noexcept + { + return x.compare(basic_bigint(y)) > 0 ? true : false; + } + + friend bool operator<=( const basic_bigint& x, const basic_bigint& y ) noexcept + { + return x.compare(y) <= 0 ? true : false; + } + + friend bool operator<=( const basic_bigint& x, int y ) noexcept + { + return x.compare(y) <= 0 ? true : false; + } + + friend bool operator>=( const basic_bigint& x, const basic_bigint& y ) noexcept + { + return x.compare(y) >= 0 ? true : false; + } + + friend bool operator>=( const basic_bigint& x, int y ) noexcept + { + return x.compare(y) >= 0 ? true : false; + } + + friend basic_bigint operator+( basic_bigint x, const basic_bigint& y ) + { + return x += y; + } + + friend basic_bigint operator+( basic_bigint x, int64_t y ) + { + return x += y; + } + + friend basic_bigint operator-( basic_bigint x, const basic_bigint& y ) + { + return x -= y; + } + + friend basic_bigint operator-( basic_bigint x, int64_t y ) + { + return x -= y; + } + + friend basic_bigint operator*( int64_t x, const basic_bigint& y ) + { + return basic_bigint(y) *= x; + } + + friend basic_bigint operator*( basic_bigint x, const basic_bigint& y ) + { + return x *= y; + } + + friend basic_bigint operator*( basic_bigint x, int64_t y ) + { + return x *= y; + } + + friend basic_bigint operator/( basic_bigint x, const basic_bigint& y ) + { + return x /= y; + } + + friend basic_bigint operator/( basic_bigint x, int y ) + { + return x /= y; + } + + friend basic_bigint operator%( basic_bigint x, const basic_bigint& y ) + { + return x %= y; + } + + friend basic_bigint operator<<( basic_bigint u, unsigned k ) + { + return u <<= k; + } + + friend basic_bigint operator<<( basic_bigint u, int k ) + { + return u <<= k; + } + + friend basic_bigint operator>>( basic_bigint u, unsigned k ) + { + return u >>= k; + } + + friend basic_bigint operator>>( basic_bigint u, int k ) + { + return u >>= k; + } + + friend basic_bigint operator|( basic_bigint x, const basic_bigint& y ) + { + return x |= y; + } + + friend basic_bigint operator|( basic_bigint x, int y ) + { + return x |= y; + } + + friend basic_bigint operator|( basic_bigint x, unsigned y ) + { + return x |= y; + } + + friend basic_bigint operator^( basic_bigint x, const basic_bigint& y ) + { + return x ^= y; + } + + friend basic_bigint operator^( basic_bigint x, int y ) + { + return x ^= y; + } + + friend basic_bigint operator^( basic_bigint x, unsigned y ) + { + return x ^= y; + } + + friend basic_bigint operator&( basic_bigint x, const basic_bigint& y ) + { + return x &= y; + } + + friend basic_bigint operator&( basic_bigint x, int y ) + { + return x &= y; + } + + friend basic_bigint operator&( basic_bigint x, unsigned y ) + { + return x &= y; + } + + friend basic_bigint abs( const basic_bigint& a ) + { + if ( a.is_negative() ) + { + return -a; + } + return a; + } + + friend basic_bigint power( basic_bigint x, unsigned n ) + { + basic_bigint y = 1; + + while ( n ) + { + if ( n & 1 ) + { + y *= x; + } + x *= x; + n >>= 1; + } + + return y; + } + + friend basic_bigint sqrt( const basic_bigint& a ) + { + basic_bigint x = a; + basic_bigint b = a; + basic_bigint q; + + b <<= 1; + while ( b >>= 2, b > 0 ) + { + x >>= 1; + } + while ( x > (q = a/x) + 1 || x < q - 1 ) + { + x += q; + x >>= 1; + } + return x < q ? x : q; + } + + template + friend std::basic_ostream& operator<<(std::basic_ostream& os, const basic_bigint& v) + { + std::basic_string s; + v.write_string(s); + os << s; + + return os; + } + + int compare( const basic_bigint& y ) const noexcept + { + if ( is_negative() != y.is_negative() ) + return y.is_negative() - is_negative(); + int code = 0; + if ( length() == 0 && y.length() == 0 ) + code = 0; + else if ( length() < y.length() ) + code = -1; + else if ( length() > y.length() ) + code = +1; + else + { + for (size_type i = length(); i-- > 0; ) + { + if (data()[i] > y.data()[i]) + { + code = 1; + break; + } + else if (data()[i] < y.data()[i]) + { + code = -1; + break; + } + } + } + return is_negative() ? -code : code; + } + + void divide( basic_bigint denom, basic_bigint& quot, basic_bigint& rem, bool remDesired ) const + { + if ( denom.length() == 0 ) + { + JSONCONS_THROW(std::runtime_error( "Zero divide." )); + } + bool quot_neg = is_negative() ^ denom.is_negative(); + bool rem_neg = is_negative(); + int x = 0; + basic_bigint num = *this; + num.common_stor_.is_negative_ = denom.common_stor_.is_negative_ = false; + if ( num < denom ) + { + quot = uint64_t(0); + rem = num; + rem.common_stor_.is_negative_ = rem_neg; + return; + } + if ( denom.length() == 1 && num.length() == 1 ) + { + quot = uint64_t( num.data()[0]/denom.data()[0] ); + rem = uint64_t( num.data()[0]%denom.data()[0] ); + quot.common_stor_.is_negative_ = quot_neg; + rem.common_stor_.is_negative_ = rem_neg; + return; + } + else if (denom.length() == 1 && (denom.data()[0] & l_mask) == 0 ) + { + // Denominator fits into a half word + uint64_t divisor = denom.data()[0], dHi = 0, + q1, r, q2, dividend; + quot.resize(length()); + for (size_type i=length(); i-- > 0; ) + { + dividend = (dHi << basic_type_halfBits) | (data()[i] >> basic_type_halfBits); + q1 = dividend/divisor; + r = dividend % divisor; + dividend = (r << basic_type_halfBits) | (data()[i] & r_mask); + q2 = dividend/divisor; + dHi = dividend % divisor; + quot.data()[i] = (q1 << basic_type_halfBits) | q2; + } + quot.reduce(); + rem = dHi; + quot.common_stor_.is_negative_ = quot_neg; + rem.common_stor_.is_negative_ = rem_neg; + return; + } + basic_bigint num0 = num, denom0 = denom; + int second_done = normalize(denom, num, x); + size_type l = denom.length() - 1; + size_type n = num.length() - 1; + quot.resize(n - l); + for (size_type i=quot.length(); i-- > 0; ) + quot.data()[i] = 0; + rem = num; + if ( rem.data()[n] >= denom.data()[l] ) + { + rem.resize(rem.length() + 1); + n++; + quot.resize(quot.length() + 1); + } + uint64_t d = denom.data()[l]; + for ( size_type k = n; k > l; k-- ) + { + uint64_t q = DDquotient(rem.data()[k], rem.data()[k-1], d); + subtractmul( rem.data() + k - l - 1, denom.data(), l + 1, q ); + quot.data()[k - l - 1] = q; + } + quot.reduce(); + quot.common_stor_.is_negative_ = quot_neg; + if ( remDesired ) + { + unnormalize(rem, x, second_done); + rem.common_stor_.is_negative_ = rem_neg; + } + } +private: + void destroy() noexcept + { + if (is_dynamic()) + { + dynamic_stor_.destroy(get_allocator()); + } + } + void DDproduct( uint64_t A, uint64_t B, + uint64_t& hi, uint64_t& lo ) const + // Multiplying two digits: (hi, lo) = A * B + { + uint64_t hiA = A >> basic_type_halfBits, loA = A & r_mask, + hiB = B >> basic_type_halfBits, loB = B & r_mask, + mid1, mid2, old; + + lo = loA * loB; + hi = hiA * hiB; + mid1 = loA * hiB; + mid2 = hiA * loB; + old = lo; + lo += mid1 << basic_type_halfBits; + hi += (lo < old) + (mid1 >> basic_type_halfBits); + old = lo; + lo += mid2 << basic_type_halfBits; + hi += (lo < old) + (mid2 >> basic_type_halfBits); + } + + uint64_t DDquotient( uint64_t A, uint64_t B, uint64_t d ) const + // Divide double word (A, B) by d. Quotient = (qHi, qLo) + { + uint64_t left, middle, right, qHi, qLo, x, dLo1, + dHi = d >> basic_type_halfBits, dLo = d & r_mask; + qHi = A/(dHi + 1); + // This initial guess of qHi may be too small. + middle = qHi * dLo; + left = qHi * dHi; + x = B - (middle << basic_type_halfBits); + A -= (middle >> basic_type_halfBits) + left + (x > B); + B = x; + dLo1 = dLo << basic_type_halfBits; + // Increase qHi if necessary: + while ( A > dHi || (A == dHi && B >= dLo1) ) + { + x = B - dLo1; + A -= dHi + (x > B); + B = x; + qHi++; + } + qLo = ((A << basic_type_halfBits) | (B >> basic_type_halfBits))/(dHi + 1); + // This initial guess of qLo may be too small. + right = qLo * dLo; + middle = qLo * dHi; + x = B - right; + A -= (x > B); + B = x; + x = B - (middle << basic_type_halfBits); + A -= (middle >> basic_type_halfBits) + (x > B); + B = x; + // Increase qLo if necessary: + while ( A || B >= d ) + { + x = B - d; + A -= (x > B); + B = x; + qLo++; + } + return (qHi << basic_type_halfBits) + qLo; + } + + void subtractmul( uint64_t* a, uint64_t* b, size_type n, uint64_t& q ) const + // a -= q * b: b in n positions; correct q if necessary + { + uint64_t hi, lo, d, carry = 0; + size_type i; + for ( i = 0; i < n; i++ ) + { + DDproduct( b[i], q, hi, lo ); + d = a[i]; + a[i] -= lo; + if ( a[i] > d ) + carry++; + d = a[i + 1]; + a[i + 1] -= hi + carry; + carry = a[i + 1] > d; + } + if ( carry ) // q was too large + { + q--; + carry = 0; + for ( i = 0; i < n; i++ ) + { + d = a[i] + carry; + carry = d < carry; + a[i] = d + b[i]; + if ( a[i] < d ) + carry = 1; + } + a[n] = 0; + } + } + + int normalize( basic_bigint& denom, basic_bigint& num, int& x ) const + { + size_type r = denom.length() - 1; + uint64_t y = denom.data()[r]; + + x = 0; + while ( (y & l_bit) == 0 ) + { + y <<= 1; + x++; + } + denom <<= x; + num <<= x; + if ( r > 0 && denom.data()[r] < denom.data()[r-1] ) + { + denom *= max_basic_type; + num *= max_basic_type; + return 1; + } + return 0; + } + + void unnormalize( basic_bigint& rem, int x, int secondDone ) const + { + if ( secondDone ) + { + rem /= max_basic_type; + } + if ( x > 0 ) + { + rem >>= x; + } + else + { + rem.reduce(); + } + } + + size_type round_up(size_type i) const // Find suitable new block size + { + return (i/word_length + 1) * word_length; + } + + void reduce() + { + uint64_t* p = end() - 1; + uint64_t* pBegin = begin(); + while ( p >= pBegin ) + { + if ( *p ) + { + break; + } + --common_stor_.length_; + --p; + } + if ( length() == 0 ) + { + common_stor_.is_negative_ = false; + } + } + + static uint64_t next_power_of_two(uint64_t n) { + n = n - 1; + n |= n >> 1; + n |= n >> 2; + n |= n >> 4; + n |= n >> 8; + n |= n >> 16; + n |= n >> 32; + return n + 1; + } +}; + +using bigint = basic_bigint>; + +#if !defined(JSONCONS_NO_DEPRECATED) +JSONCONS_DEPRECATED_MSG("Instead, use bigint") typedef bigint bignum; +#endif + +} + +#endif diff --git a/include/jsoncons/byte_string.hpp b/include/jsoncons/byte_string.hpp new file mode 100644 index 0000000..159dff9 --- /dev/null +++ b/include/jsoncons/byte_string.hpp @@ -0,0 +1,820 @@ +// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_BYTE_STRING_HPP +#define JSONCONS_BYTE_STRING_HPP + +#include +#include +#include +#include +#include // std::memcmp +#include // std::allocator +#include +#include +#include // std::setw +#include +#include // std::move +#include +#include +#include +#include + +namespace jsoncons { + + // Algorithms + +namespace detail { + + template + typename std::enable_if::value_type,uint8_t>::value,size_t>::type + encode_base64_generic(InputIt first, InputIt last, const char alphabet[65], Container& result) + { + std::size_t count = 0; + unsigned char a3[3]; + unsigned char a4[4]; + unsigned char fill = alphabet[64]; + int i = 0; + int j = 0; + + while (first != last) + { + a3[i++] = *first++; + if (i == 3) + { + a4[0] = (a3[0] & 0xfc) >> 2; + a4[1] = ((a3[0] & 0x03) << 4) + ((a3[1] & 0xf0) >> 4); + a4[2] = ((a3[1] & 0x0f) << 2) + ((a3[2] & 0xc0) >> 6); + a4[3] = a3[2] & 0x3f; + + for (i = 0; i < 4; i++) + { + result.push_back(alphabet[a4[i]]); + ++count; + } + i = 0; + } + } + + if (i > 0) + { + for (j = i; j < 3; ++j) + { + a3[j] = 0; + } + + a4[0] = (a3[0] & 0xfc) >> 2; + a4[1] = ((a3[0] & 0x03) << 4) + ((a3[1] & 0xf0) >> 4); + a4[2] = ((a3[1] & 0x0f) << 2) + ((a3[2] & 0xc0) >> 6); + + for (j = 0; j < i + 1; ++j) + { + result.push_back(alphabet[a4[j]]); + ++count; + } + + if (fill != 0) + { + while (i++ < 3) + { + result.push_back(fill); + ++count; + } + } + } + + return count; + } + + template + typename std::enable_if::value,decode_result>::type + decode_base64_generic(InputIt first, InputIt last, + const uint8_t reverse_alphabet[256], + F f, + Container& result) + { + uint8_t a4[4], a3[3]; + uint8_t i = 0; + uint8_t j = 0; + + while (first != last && *first != '=') + { + if (!f(*first)) + { + return decode_result{first, conv_errc::conversion_failed}; + } + + a4[i++] = *first++; + if (i == 4) + { + for (i = 0; i < 4; ++i) + { + a4[i] = reverse_alphabet[a4[i]]; + } + + a3[0] = (a4[0] << 2) + ((a4[1] & 0x30) >> 4); + a3[1] = ((a4[1] & 0xf) << 4) + ((a4[2] & 0x3c) >> 2); + a3[2] = ((a4[2] & 0x3) << 6) + a4[3]; + + for (i = 0; i < 3; i++) + { + result.push_back(a3[i]); + } + i = 0; + } + } + + if (i > 0) + { + for (j = 0; j < i; ++j) + { + a4[j] = reverse_alphabet[a4[j]]; + } + + a3[0] = (a4[0] << 2) + ((a4[1] & 0x30) >> 4); + a3[1] = ((a4[1] & 0xf) << 4) + ((a4[2] & 0x3c) >> 2); + + for (j = 0; j < i - 1; ++j) + { + result.push_back(a3[j]); + } + } + return decode_result{last, conv_errc::success}; + } + +} // namespace detail + + template + typename std::enable_if::value_type,uint8_t>::value,size_t>::type + encode_base16(InputIt first, InputIt last, Container& result) + { + static constexpr char characters[] = "0123456789ABCDEF"; + + for (auto it = first; it != last; ++it) + { + uint8_t c = *it; + result.push_back(characters[c >> 4]); + result.push_back(characters[c & 0xf]); + } + return (last-first)*2; + } + + template + typename std::enable_if::value_type,uint8_t>::value,size_t>::type + encode_base64url(InputIt first, InputIt last, Container& result) + { + static constexpr char alphabet[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ" + "abcdefghijklmnopqrstuvwxyz" + "0123456789-_" + "\0"; + return detail::encode_base64_generic(first, last, alphabet, result); + } + + template + typename std::enable_if::value_type,uint8_t>::value,size_t>::type + encode_base64(InputIt first, InputIt last, Container& result) + { + static constexpr char alphabet[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ" + "abcdefghijklmnopqrstuvwxyz" + "0123456789+/" + "="; + return detail::encode_base64_generic(first, last, alphabet, result); + } + + template + bool is_base64(Char c) + { + return (c >= 0 && c < 128) && (isalnum((int)c) || c == '+' || c == '/'); + } + + template + bool is_base64url(Char c) + { + return (c >= 0 && c < 128) && (isalnum((int)c) || c == '-' || c == '_'); + } + + inline + static bool is_base64url(int c) + { + return isalnum(c) || c == '-' || c == '_'; + } + + // decode + + template + typename std::enable_if::value,decode_result>::type + decode_base64url(InputIt first, InputIt last, Container& result) + { + static constexpr uint8_t reverse_alphabet[256] = { + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 62, 0xff, 0xff, + 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, + 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 0xff, 0xff, 0xff, 0xff, 63, + 0xff, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, + 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff + }; + auto retval = jsoncons::detail::decode_base64_generic(first, last, reverse_alphabet, + is_base64url::value_type>, + result); + return retval.ec == conv_errc::success ? retval : decode_result{retval.it, conv_errc::not_base64url}; + } + + template + typename std::enable_if::value,decode_result>::type + decode_base64(InputIt first, InputIt last, Container& result) + { + static constexpr uint8_t reverse_alphabet[256] = { + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 62, 0xff, 0xff, 0xff, 63, + 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, + 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, + 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff + }; + auto retval = jsoncons::detail::decode_base64_generic(first, last, reverse_alphabet, + is_base64::value_type>, + result); + return retval.ec == conv_errc::success ? retval : decode_result{retval.it, conv_errc::not_base64}; + } + + template + typename std::enable_if::value,decode_result>::type + decode_base16(InputIt first, InputIt last, Container& result) + { + std::size_t len = std::distance(first,last); + if (len & 1) + { + return decode_result{first, conv_errc::not_base16}; + } + + InputIt it = first; + while (it != last) + { + uint8_t val; + auto a = *it++; + if (a >= '0' && a <= '9') + { + val = (a - '0') << 4; + } + else if ((a | 0x20) >= 'a' && (a | 0x20) <= 'f') + { + val = ((a | 0x20) - 'a' + 10) << 4; + } + else + { + return decode_result{first, conv_errc::not_base16}; + } + + auto b = *it++; + if (b >= '0' && b <= '9') + { + val |= (b - '0'); + } + else if ((b | 0x20) >= 'a' && (b | 0x20) <= 'f') + { + val |= ((b | 0x20) - 'a' + 10); + } + else + { + return decode_result{first, conv_errc::not_base16}; + } + + result.push_back(val); + } + return decode_result{last, conv_errc::success}; + } + + struct byte_traits + { + using char_type = uint8_t; + + static constexpr int eof() + { + return std::char_traits::eof(); + } + + static int compare(const char_type* s1, const char_type* s2, std::size_t count) noexcept + { + return std::memcmp(s1,s2,count); + } + }; + + // basic_byte_string + + template + class basic_byte_string; + + // byte_string_view + class byte_string_view + { + const uint8_t* data_; + std::size_t size_; + public: + using traits_type = byte_traits; + + using const_iterator = const uint8_t*; + using iterator = const_iterator; + using size_type = std::size_t; + using value_type = uint8_t; + using reference = uint8_t&; + using const_reference = const uint8_t&; + using difference_type = std::ptrdiff_t; + using pointer = uint8_t*; + using const_pointer = const uint8_t*; + + constexpr byte_string_view() noexcept + : data_(nullptr), size_(0) + { + } + + constexpr byte_string_view(const uint8_t* data, std::size_t length) noexcept + : data_(data), size_(length) + { + } + + template + constexpr explicit byte_string_view(const Container& cont, + typename std::enable_if::value,int>::type = 0) + : data_(reinterpret_cast(cont.data())), size_(cont.size()) + { + } + + template + constexpr byte_string_view(const basic_byte_string& bytes); + + constexpr byte_string_view(const byte_string_view&) noexcept = default; + + JSONCONS_CPP14_CONSTEXPR byte_string_view(byte_string_view&& other) noexcept + : data_(nullptr), size_(0) + { + const_pointer temp_data = data_; + data_ = other.data_; + other.data_ = temp_data; + + size_type temp_size = size_; + size_ = other.size_; + other.size_ = temp_size; + } + + byte_string_view& operator=(const byte_string_view&) = default; + + byte_string_view& operator=(byte_string_view&& other) noexcept + { + std::swap(data_, other.data_); + std::swap(size_, other.size_); + return *this; + } + + constexpr const uint8_t* data() const noexcept + { + return data_; + } + #if !defined(JSONCONS_NO_DEPRECATED) + JSONCONS_DEPRECATED_MSG("Instead, use size()") + std::size_t length() const + { + return size_; + } + #endif + constexpr size_t size() const noexcept + { + return size_; + } + + // iterator support + constexpr const_iterator begin() const noexcept + { + return data_; + } + constexpr const_iterator end() const noexcept + { + return data_ + size_; + } + constexpr const_iterator cbegin() const noexcept + { + return data_; + } + constexpr const_iterator cend() const noexcept + { + return data_ + size_; + } + + constexpr uint8_t operator[](size_type pos) const + { + return data_[pos]; + } + + JSONCONS_CPP14_CONSTEXPR byte_string_view substr(size_type pos) const + { + if (pos > size_) + { + JSONCONS_THROW(std::out_of_range("pos exceeds size")); + } + std::size_t n = size_ - pos; + return byte_string_view(data_ + pos, n); + } + + byte_string_view substr(size_type pos, size_type n) const + { + if (pos > size_) + { + JSONCONS_THROW(std::out_of_range("pos exceeds size")); + } + if (pos + n > size_) + { + n = size_ - pos; + } + return byte_string_view(data_ + pos, n); + } + + int compare(const byte_string_view& s) const noexcept + { + const int rc = traits_type::compare(data_, s.data(), (std::min)(size_, s.size())); + return rc != 0 ? rc : (size_ == s.size() ? 0 : size_ < s.size() ? -1 : 1); + } + + template + int compare(const basic_byte_string& s) const noexcept + { + const int rc = traits_type::compare(data_, s.data(), (std::min)(size_, s.size())); + return rc != 0 ? rc : (size_ == s.size() ? 0 : size_ < s.size() ? -1 : 1); + } + + template + friend std::basic_ostream& operator<<(std::basic_ostream& os, const byte_string_view& bstr) + { + std::basic_ostringstream ss; + ss.flags(std::ios::hex); + ss.fill('0'); + + bool first = true; + for (auto b : bstr) + { + if (first) + { + first = false; + } + else + { + ss << ','; + } + ss << std::setw(2) << static_cast(b); + } + os << ss.str(); + return os; + } + }; + + // basic_byte_string + template > + class basic_byte_string + { + using byte_allocator_type = typename std::allocator_traits:: template rebind_alloc; + std::vector data_; + public: + using traits_type = byte_traits; + using allocator_type = byte_allocator_type; + + using value_type = typename std::vector::value_type; + using size_type = typename std::vector::size_type; + using difference_type = typename std::vector::difference_type; + using reference = typename std::vector::reference; + using const_reference = typename std::vector::const_reference; + using pointer = typename std::vector::pointer; + using const_pointer = typename std::vector::const_pointer; + using iterator = typename std::vector::iterator; + using const_iterator = typename std::vector::const_iterator; + + basic_byte_string() = default; + + explicit basic_byte_string(const Allocator& alloc) + : data_(alloc) + { + } + + basic_byte_string(std::initializer_list init) + : data_(std::move(init)) + { + } + + basic_byte_string(std::initializer_list init, const Allocator& alloc) + : data_(std::move(init), alloc) + { + } + + explicit basic_byte_string(const byte_string_view& v) + : data_(v.begin(),v.end()) + { + } + + basic_byte_string(const basic_byte_string& v) + : data_(v.data_) + { + } + + basic_byte_string(basic_byte_string&& v) noexcept + : data_(std::move(v.data_)) + { + } + + basic_byte_string(const byte_string_view& v, const Allocator& alloc) + : data_(v.begin(),v.end(),alloc) + { + } + + basic_byte_string(const uint8_t* data, std::size_t length, const Allocator& alloc = Allocator()) + : data_(data, data+length,alloc) + { + } + + Allocator get_allocator() const + { + return data_.get_allocator(); + } + + basic_byte_string& operator=(const basic_byte_string& s) = default; + + basic_byte_string& operator=(basic_byte_string&& other) noexcept + { + data_.swap(other.data_); + return *this; + } + + void reserve(std::size_t new_cap) + { + data_.reserve(new_cap); + } + + void push_back(uint8_t b) + { + data_.push_back(b); + } + + void assign(const uint8_t* s, std::size_t count) + { + data_.clear(); + data_.insert(s, s+count); + } + + void append(const uint8_t* s, std::size_t count) + { + data_.insert(s, s+count); + } + + void clear() + { + data_.clear(); + } + + uint8_t operator[](size_type pos) const + { + return data_[pos]; + } + + // iterator support + iterator begin() noexcept + { + return data_.begin(); + } + iterator end() noexcept + { + return data_.end(); + } + + const_iterator begin() const noexcept + { + return data_.begin(); + } + const_iterator end() const noexcept + { + return data_.end(); + } + + uint8_t* data() + { + return data_.data(); + } + + const uint8_t* data() const + { + return data_.data(); + } + + std::size_t size() const + { + return data_.size(); + } + + #if !defined(JSONCONS_NO_DEPRECATED) + JSONCONS_DEPRECATED_MSG("Instead, use size()") + std::size_t length() const + { + return data_.size(); + } + #endif + + int compare(const byte_string_view& s) const noexcept + { + const int rc = traits_type::compare(data(), s.data(), (std::min)(size(), s.size())); + return rc != 0 ? rc : (size() == s.size() ? 0 : size() < s.size() ? -1 : 1); + } + + int compare(const basic_byte_string& s) const noexcept + { + const int rc = traits_type::compare(data(), s.data(), (std::min)(size(), s.size())); + return rc != 0 ? rc : (size() == s.size() ? 0 : size() < s.size() ? -1 : 1); + } + + template + friend std::basic_ostream& operator<<(std::basic_ostream& os, const basic_byte_string& o) + { + os << byte_string_view(o); + return os; + } + }; + + template + constexpr byte_string_view::byte_string_view(const basic_byte_string& bytes) + : data_(bytes.data()), size_(bytes.size()) + { + } + + // == + inline + bool operator==(const byte_string_view& lhs, const byte_string_view& rhs) noexcept + { + return lhs.compare(rhs) == 0; + } + template + bool operator==(const byte_string_view& lhs, const basic_byte_string& rhs) noexcept + { + return lhs.compare(rhs) == 0; + } + template + bool operator==(const basic_byte_string& lhs, const byte_string_view& rhs) noexcept + { + return rhs.compare(lhs) == 0; + } + template + bool operator==(const basic_byte_string& lhs, const basic_byte_string& rhs) noexcept + { + return rhs.compare(lhs) == 0; + } + + // != + + inline + bool operator!=(const byte_string_view& lhs, const byte_string_view& rhs) noexcept + { + return lhs.compare(rhs) != 0; + } + template + bool operator!=(const byte_string_view& lhs, const basic_byte_string& rhs) noexcept + { + return lhs.compare(rhs) != 0; + } + template + bool operator!=(const basic_byte_string& lhs, const byte_string_view& rhs) noexcept + { + return rhs.compare(lhs) != 0; + } + template + bool operator!=(const basic_byte_string& lhs, const basic_byte_string& rhs) noexcept + { + return rhs.compare(lhs) != 0; + } + + // <= + + inline + bool operator<=(const byte_string_view& lhs, const byte_string_view& rhs) noexcept + { + return lhs.compare(rhs) <= 0; + } + template + bool operator<=(const byte_string_view& lhs, const basic_byte_string& rhs) noexcept + { + return lhs.compare(rhs) <= 0; + } + template + bool operator<=(const basic_byte_string& lhs, const byte_string_view& rhs) noexcept + { + return rhs.compare(lhs) >= 0; + } + template + bool operator<=(const basic_byte_string& lhs, const basic_byte_string& rhs) noexcept + { + return rhs.compare(lhs) >= 0; + } + + // < + + inline + bool operator<(const byte_string_view& lhs, const byte_string_view& rhs) noexcept + { + return lhs.compare(rhs) < 0; + } + template + bool operator<(const byte_string_view& lhs, const basic_byte_string& rhs) noexcept + { + return lhs.compare(rhs) < 0; + } + template + bool operator<(const basic_byte_string& lhs, const byte_string_view& rhs) noexcept + { + return rhs.compare(lhs) > 0; + } + template + bool operator<(const basic_byte_string& lhs, const basic_byte_string& rhs) noexcept + { + return rhs.compare(lhs) > 0; + } + + // >= + + inline + bool operator>=(const byte_string_view& lhs, const byte_string_view& rhs) noexcept + { + return lhs.compare(rhs) >= 0; + } + template + bool operator>=(const byte_string_view& lhs, const basic_byte_string& rhs) noexcept + { + return lhs.compare(rhs) >= 0; + } + template + bool operator>=(const basic_byte_string& lhs, const byte_string_view& rhs) noexcept + { + return rhs.compare(lhs) <= 0; + } + template + bool operator>=(const basic_byte_string& lhs, const basic_byte_string& rhs) noexcept + { + return rhs.compare(lhs) <= 0; + } + + // > + + inline + bool operator>(const byte_string_view& lhs, const byte_string_view& rhs) noexcept + { + return lhs.compare(rhs) > 0; + } + template + bool operator>(const byte_string_view& lhs, const basic_byte_string& rhs) noexcept + { + return lhs.compare(rhs) > 0; + } + template + bool operator>(const basic_byte_string& lhs, const byte_string_view& rhs) noexcept + { + return rhs.compare(lhs) < 0; + } + template + bool operator>(const basic_byte_string& lhs, const basic_byte_string& rhs) noexcept + { + return rhs.compare(lhs) < 0; + } + + using byte_string = basic_byte_string>; + + namespace type_traits { + + template + struct is_basic_byte_string + : std::false_type + {}; + + template + struct is_basic_byte_string> + : std::true_type + {}; + + } // namespace type_traits + +} // namespace jsoncons + +#endif diff --git a/include/jsoncons/config/binary_config.hpp b/include/jsoncons/config/binary_config.hpp new file mode 100644 index 0000000..51b52a8 --- /dev/null +++ b/include/jsoncons/config/binary_config.hpp @@ -0,0 +1,226 @@ +// Copyright 2017 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_CONFIG_BINARY_CONFIG_HPP +#define JSONCONS_CONFIG_BINARY_CONFIG_HPP + +#include +#include +#include +#include // std::memcpy +#include +#include // std::enable_if + +// The definitions below follow the definitions in compiler_support_p.h, https://github.com/01org/tinycbor +// MIT license + +#ifdef __F16C__ +# include +#endif + +#ifndef __has_builtin +# define __has_builtin(x) 0 +#endif + +#if defined(__GNUC__) +#if (__GNUC__ * 100 + __GNUC_MINOR__ >= 403) || (__has_builtin(__builtin_bswap64) && __has_builtin(__builtin_bswap32)) +# define JSONCONS_BYTE_SWAP_64 __builtin_bswap64 +# define JSONCONS_BYTE_SWAP_32 __builtin_bswap32 +# ifdef __INTEL_COMPILER +# define JSONCONS_BYTE_SWAP_16 _bswap16 +# elif (__GNUC__ * 100 + __GNUC_MINOR__ >= 608) || __has_builtin(__builtin_bswap16) +# define JSONCONS_BYTE_SWAP_16 __builtin_bswap16 +# endif +#endif +#elif defined(__sun) +# include +#elif defined(_MSC_VER) +// MSVC, which implies sizeof(long) == 4 +# define JSONCONS_BYTE_SWAP_64 _byteswap_uint64 +# define JSONCONS_BYTE_SWAP_32 _byteswap_ulong +# define JSONCONS_BYTE_SWAP_16 _byteswap_ushort +#endif + +namespace jsoncons { +namespace binary { + + struct uint128_holder + { + uint64_t lo; + uint64_t hi; + }; + + static inline bool add_check_overflow(std::size_t v1, std::size_t v2, std::size_t *r) + { + #if ((defined(__GNUC__) && (__GNUC__ >= 5)) && !defined(__INTEL_COMPILER)) || __has_builtin(__builtin_add_overflow) + return __builtin_add_overflow(v1, v2, r); + #else + // unsigned additions are well-defined + *r = v1 + v2; + return v1 > v1 + v2; + #endif + } + + #if defined(__apple_build_version__) && ((__clang_major__ < 8) || ((__clang_major__ == 8) && (__clang_minor__ < 1))) + #define APPLE_MISSING_INTRINSICS 1 + #endif + + inline + uint16_t encode_half(double val) + { + #if defined(__F16C__) && !defined(APPLE_MISSING_INTRINSICS) + return _cvtss_sh((float)val, 3); + #else + uint64_t v; + std::memcpy(&v, &val, sizeof(v)); + int64_t sign = static_cast(v >> 63 << 15); + int64_t exp = (v >> 52) & 0x7ff; + int64_t mant = v << 12 >> 12 >> (53-11); /* keep only the 11 most significant bits of the mantissa */ + exp -= 1023; + if (exp == 1024) { + /* infinity or NaN */ + exp = 16; + mant >>= 1; + } else if (exp >= 16) { + /* overflow, as largest number */ + exp = 15; + mant = 1023; + } else if (exp >= -14) { + /* regular normal */ + } else if (exp >= -24) { + /* subnormal */ + mant |= 1024; + mant >>= -(exp + 14); + exp = -15; + } else { + /* underflow, make zero */ + return 0; + } + + /* safe cast here as bit operations above guarantee not to overflow */ + return static_cast(sign | ((exp + 15) << 10) | mant); + #endif + } + + /* this function was copied & adapted from RFC 7049 Appendix D */ + inline + double decode_half(uint16_t half) + { + #if defined(__F16C__) && !defined(APPLE_MISSING_INTRINSICS) + return _cvtsh_ss(half); + #else + int64_t exp = (half >> 10) & 0x1f; + int64_t mant = half & 0x3ff; + double val; + if (exp == 0) + { + val = ldexp(static_cast(mant), -24); + } + else if (exp != 31) + { + val = ldexp(static_cast(mant) + 1024.0, static_cast(exp - 25)); + } + else + { + val = mant == 0 ? std::numeric_limits::infinity() : std::nan(""); + } + return half & 0x8000 ? -val : val; + #endif + } + + // byte_swap + + template + typename std::enable_if::value && sizeof(T) == sizeof(uint8_t),T>::type + byte_swap(T val) + { + return val; + } + + template + typename std::enable_if::value && sizeof(T) == sizeof(uint16_t),T>::type + byte_swap(T val) + { + #if defined(JSONCONS_BYTE_SWAP_16) + return JSONCONS_BYTE_SWAP_16(val); + #else + return (static_cast(val) >> 8) | (static_cast(val) << 8); + #endif + } + + template + typename std::enable_if::value && sizeof(T) == sizeof(uint32_t),T>::type + byte_swap(T val) + { + #if defined(JSONCONS_BYTE_SWAP_32) + return JSONCONS_BYTE_SWAP_32(val); + #else + uint32_t tmp = ((static_cast(val) << 8) & 0xff00ff00) | ((static_cast(val) >> 8) & 0xff00ff); + return (tmp << 16) | (tmp >> 16); + #endif + } + + template + typename std::enable_if::value && sizeof(T) == sizeof(uint64_t),T>::type + byte_swap(T val) + { + #if defined(JSONCONS_BYTE_SWAP_64) + return JSONCONS_BYTE_SWAP_64(val); + #else + uint64_t tmp = ((static_cast(val) & 0x00000000ffffffffull) << 32) | ((static_cast(val) & 0xffffffff00000000ull) >> 32); + tmp = ((tmp & 0x0000ffff0000ffffull) << 16) | ((tmp & 0xffff0000ffff0000ull) >> 16); + return ((tmp & 0x00ff00ff00ff00ffull) << 8) | ((tmp & 0xff00ff00ff00ff00ull) >> 8); + #endif + } + + template + typename std::enable_if::value && sizeof(T) == sizeof(uint32_t),T>::type + byte_swap(T val) + { + uint32_t x; + std::memcpy(&x,&val,sizeof(uint32_t)); + uint32_t y = byte_swap(x); + T val2; + std::memcpy(&val2,&y,sizeof(uint32_t)); + return val2; + } + + template + typename std::enable_if::value && sizeof(T) == sizeof(uint64_t),T>::type + byte_swap(T val) + { + uint64_t x; + std::memcpy(&x,&val,sizeof(uint64_t)); + uint64_t y = byte_swap(x); + T val2; + std::memcpy(&val2,&y,sizeof(uint64_t)); + return val2; + } + + template + typename std::enable_if::value && sizeof(T) == 2*sizeof(uint64_t),T>::type + byte_swap(T val) + { + uint128_holder x; + uint8_t buf[2*sizeof(uint64_t)]; + std::memcpy(buf,&val,2*sizeof(uint64_t)); + std::memcpy(&x.lo,buf,sizeof(uint64_t)); + std::memcpy(&x.hi,buf+sizeof(uint64_t),sizeof(uint64_t)); + + uint128_holder y; + y.lo = byte_swap(x.hi); + y.hi = byte_swap(x.lo); + + T val2; + std::memcpy(&val2,&y,2*sizeof(uint64_t)); + + return val2; + } + +} // binary +} // jsoncons + +#endif diff --git a/include/jsoncons/config/compiler_support.hpp b/include/jsoncons/config/compiler_support.hpp new file mode 100644 index 0000000..15d30cf --- /dev/null +++ b/include/jsoncons/config/compiler_support.hpp @@ -0,0 +1,389 @@ +// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_COMPILER_SUPPORT_HPP +#define JSONCONS_COMPILER_SUPPORT_HPP + +#include +#include +#include +#include +#include + +#if defined (__clang__) +#define JSONCONS_CLANG_VERSION (__clang_major__ * 10000 + __clang_minor__ * 100 + __clang_patchlevel__) +#endif + +// Uncomment the following line to suppress deprecated names (recommended for new code) +//#define JSONCONS_NO_DEPRECATED + +// The definitions below follow the definitions in compiler_support_p.h, https://github.com/01org/tinycbor +// MIT license + +// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54577 +#if defined(__GNUC__) && __GNUC__ == 4 && __GNUC_MINOR__ < 9 +#define JSONCONS_NO_VECTOR_ERASE_TAKES_CONST_ITERATOR 1 +#define JSONCONS_NO_MAP_CONS_TAKES_ALLOCATOR 1 +#endif + +#if defined(__clang__) +# define JSONCONS_FALLTHROUGH [[clang::fallthrough]] +#elif defined(__GNUC__) && ((__GNUC__ >= 7)) +# define JSONCONS_FALLTHROUGH __attribute__((fallthrough)) +#elif defined (__GNUC__) +# define JSONCONS_FALLTHROUGH // FALLTHRU +#else +# define JSONCONS_FALLTHROUGH +#endif + +#if defined(__GNUC__) || defined(__clang__) +#define JSONCONS_LIKELY(x) __builtin_expect(!!(x), 1) +#define JSONCONS_UNLIKELY(x) __builtin_expect(!!(x), 0) +#define JSONCONS_UNREACHABLE() __builtin_unreachable() +#elif defined(_MSC_VER) +#define JSONCONS_LIKELY(x) x +#define JSONCONS_UNLIKELY(x) x +#define JSONCONS_UNREACHABLE() __assume(0) +#else +#define JSONCONS_LIKELY(x) x +#define JSONCONS_UNLIKELY(x) x +#define JSONCONS_UNREACHABLE() do {} while (0) +#endif + +// Deprecated symbols markup +#if (defined(__cplusplus) && __cplusplus >= 201402L) +#define JSONCONS_DEPRECATED_MSG(msg) [[deprecated(msg)]] +#endif + +#if !defined(JSONCONS_DEPRECATED_MSG) && defined(__GNUC__) && defined(__has_extension) +#if __has_extension(attribute_deprecated_with_message) +#define JSONCONS_DEPRECATED_MSG(msg) __attribute__((deprecated(msg))) +#endif +#endif + +#if !defined(JSONCONS_DEPRECATED_MSG) && defined(_MSC_VER) +#if (_MSC_VER) >= 1920 +#define JSONCONS_DEPRECATED_MSG(msg) [[deprecated(msg)]] +#else +#define JSONCONS_DEPRECATED_MSG(msg) __declspec(deprecated(msg)) +#endif +#endif + +// Following boost/atomic/detail/config.hpp +#if !defined(JSONCONS_DEPRECATED_MSG) && (\ + (defined(__GNUC__) && ((__GNUC__ + 0) * 100 + (__GNUC_MINOR__ + 0)) >= 405) ||\ + (defined(__SUNPRO_CC) && (__SUNPRO_CC + 0) >= 0x5130)) + #define JSONCONS_DEPRECATED_MSG(msg) __attribute__((deprecated(msg))) +#endif + +#if !defined(JSONCONS_DEPRECATED_MSG) && defined(__clang__) && defined(__has_extension) + #if __has_extension(attribute_deprecated_with_message) + #define JSONCONS_DEPRECATED_MSG(msg) __attribute__((deprecated(msg))) + #else + #define JSONCONS_DEPRECATED_MSG(msg) __attribute__((deprecated)) + #endif +#endif + +#if !defined(JSONCONS_DEPRECATED_MSG) +#define JSONCONS_DEPRECATED_MSG(msg) +#endif + +#if defined(ANDROID) || defined(__ANDROID__) +#if __ANDROID_API__ >= 21 +#define JSONCONS_HAS_STRTOLD_L +#else +#define JSONCONS_NO_LOCALECONV +#endif +#endif + +#if defined(_MSC_VER) +#define JSONCONS_HAS_MSC_STRTOD_L +#define JSONCONS_HAS_FOPEN_S +#endif + +#ifndef JSONCONS_HAS_CP14 + #if defined(_MSVC_LANG) + #if _MSVC_LANG >= 201402L + #define JSONCONS_HAS_CP14 + #endif + #elif __cplusplus >= 201402L + #define JSONCONS_HAS_CP14 + #endif +#endif + +#if !defined(JSONCONS_HAS_STD_FROM_CHARS) +# if defined(__GNUC__) +# if (__GNUC__ >= 11) +# if (__cplusplus >= 201703) +# define JSONCONS_HAS_STD_FROM_CHARS 1 +# endif // (__cplusplus >= 201703) +# endif // (__GNUC__ >= 11) +# endif // defined(__GNUC__) +# if defined(_MSC_VER) +# if (_MSC_VER >= 1924 && _MSVC_LANG >= 201703) +# define JSONCONS_HAS_STD_FROM_CHARS 1 +# endif // (_MSC_VER >= 1924 && MSVC_LANG >= 201703) +# endif // defined(_MSC_VER) +#endif +#if defined(JSONCONS_HAS_STD_FROM_CHARS) +#include +#endif + +#if !defined(JSONCONS_HAS_2017) +# if defined(__clang__) +# if (__cplusplus >= 201703) +# define JSONCONS_HAS_2017 1 +# endif // (__cplusplus >= 201703) +# endif // defined(__clang__) +# if defined(__GNUC__) +# if (__GNUC__ >= 7) +# if (__cplusplus >= 201703) +# define JSONCONS_HAS_2017 1 +# endif // (__cplusplus >= 201703) +# endif // (__GNUC__ >= 7) +# endif // defined(__GNUC__) +# if defined(_MSC_VER) +# if (_MSC_VER >= 1910 && _MSVC_LANG >= 201703) +# define JSONCONS_HAS_2017 1 +# endif // (_MSC_VER >= 1910 && MSVC_LANG >= 201703) +# endif // defined(_MSC_VER) +#endif + +#if defined(JSONCONS_HAS_2017) + #define JSONCONS_NODISCARD [[nodiscard]] + #define JSONCONS_IF_CONSTEXPR if constexpr +#else + #define JSONCONS_NODISCARD + #define JSONCONS_IF_CONSTEXPR if +#endif + +#if !defined(JSONCONS_HAS_STD_STRING_VIEW) +# if (defined JSONCONS_HAS_2017) +# if defined(__clang__) +# if __has_include() +# define JSONCONS_HAS_STD_STRING_VIEW 1 +# endif // __has_include() +# else +# define JSONCONS_HAS_STD_STRING_VIEW 1 +# endif +# endif // defined(JSONCONS_HAS_2017) +#endif // !defined(JSONCONS_HAS_STD_STRING_VIEW) + +#if !defined(JSONCONS_HAS_STD_BYTE) +# if (defined JSONCONS_HAS_2017) +# define JSONCONS_HAS_STD_BYTE 1 +# endif // defined(JSONCONS_HAS_2017) +#endif // !defined(JSONCONS_HAS_STD_BYTE) + +#if !defined(JSONCONS_HAS_STD_OPTIONAL) +# if (defined JSONCONS_HAS_2017) +# if defined(__clang__) +# if __has_include() +# define JSONCONS_HAS_STD_OPTIONAL 1 +# endif // __has_include() +# else +# define JSONCONS_HAS_STD_OPTIONAL 1 +# endif +# endif // defined(JSONCONS_HAS_2017) +#endif // !defined(JSONCONS_HAS_STD_OPTIONAL) + +#if !defined(JSONCONS_HAS_STD_VARIANT) +# if (defined JSONCONS_HAS_2017) +# if defined(__clang__) +# if defined(__APPLE__) +# if JSONCONS_CLANG_VERSION >= 100001 +# define JSONCONS_HAS_STD_VARIANT 1 +# endif +# elif __has_include() +# define JSONCONS_HAS_STD_VARIANT 1 +# endif // __has_include() +# else +# define JSONCONS_HAS_STD_VARIANT 1 +# endif +# endif // defined(JSONCONS_HAS_2017) +#endif // !defined(JSONCONS_HAS_STD_VARIANT) + +#if !defined(JSONCONS_HAS_FILESYSTEM) +# if (defined JSONCONS_HAS_2017) +# if defined(__clang__) +# if __has_include() +# define JSONCONS_HAS_FILESYSTEM 1 +# endif // __has_include() +# else +# define JSONCONS_HAS_FILESYSTEM 1 +# endif +# endif // defined(JSONCONS_HAS_2017) +#endif // !defined(JSONCONS_HAS_FILESYSTEM) + +#if (!defined(JSONCONS_NO_EXCEPTIONS)) +// Check if exceptions are disabled. +# if defined( __cpp_exceptions) && __cpp_exceptions == 0 +# define JSONCONS_NO_EXCEPTIONS 1 +# endif +#endif + +#if !defined(JSONCONS_NO_EXCEPTIONS) + +#if defined(__GNUC__) && !__EXCEPTIONS +# define JSONCONS_NO_EXCEPTIONS 1 +#elif _MSC_VER +#if defined(_HAS_EXCEPTIONS) && _HAS_EXCEPTIONS == 0 +# define JSONCONS_NO_EXCEPTIONS 1 +#elif !defined(_CPPUNWIND) +# define JSONCONS_NO_EXCEPTIONS 1 +#endif +#endif +#endif + +// allow to disable exceptions +#if !defined(JSONCONS_NO_EXCEPTIONS) + #define JSONCONS_THROW(exception) throw exception + #define JSONCONS_RETHROW throw + #define JSONCONS_TRY try + #define JSONCONS_CATCH(exception) catch(exception) +#else + #define JSONCONS_THROW(exception) std::terminate() + #define JSONCONS_RETHROW std::terminate() + #define JSONCONS_TRY if (true) + #define JSONCONS_CATCH(exception) if (false) +#endif + +#if !defined(JSONCONS_HAS_STD_MAKE_UNIQUE) + #if defined(__clang__) && defined(__cplusplus) + #if defined(__APPLE__) + #if __clang_major__ >= 6 && __cplusplus >= 201402L // Xcode 6 + #define JSONCONS_HAS_STD_MAKE_UNIQUE + #endif + #elif ((__clang_major__*100 +__clang_minor__) >= 340) && __cplusplus >= 201402L + #define JSONCONS_HAS_STD_MAKE_UNIQUE + #endif + #elif defined(__GNUC__) + #if (__GNUC__ * 100 + __GNUC_MINOR__) >= 409 && __cplusplus > 201103L + #define JSONCONS_HAS_STD_MAKE_UNIQUE + #endif + #elif defined(_MSC_VER) + #if _MSC_VER >= 1800 + #define JSONCONS_HAS_STD_MAKE_UNIQUE + #endif + #endif +#endif // !defined(JSONCONS_HAS_STD_MAKE_UNIQUE) + +#ifndef JSONCONS_HAS_CP14_CONSTEXPR + #if defined(_MSC_VER) + #if _MSC_VER >= 1910 + #define JSONCONS_HAS_CP14_CONSTEXPR + #endif + #elif defined(__GNUC__) + #if (__GNUC__ * 100 + __GNUC_MINOR__) >= 600 && __cplusplus >= 201402L + #define JSONCONS_HAS_CP14_CONSTEXPR + #endif + #endif +#endif + +#if defined(JSONCONS_HAS_CP14_CONSTEXPR) +# define JSONCONS_CPP14_CONSTEXPR constexpr +#else +# define JSONCONS_CPP14_CONSTEXPR +#endif + +// Follows boost + +// gcc and clang +#if (defined(__clang__) || defined(__GNUC__)) && defined(__cplusplus) +#if defined(__SIZEOF_INT128__) && !defined(_MSC_VER) +# define JSONCONS_HAS_INT128 +#endif + +#if (defined(linux) || defined(__linux) || defined(__linux__) || defined(__GNU__) || defined(__GLIBC__)) && !defined(_CRAYC) +#if (__clang_major__ >= 4) && defined(__has_include) +#if __has_include() +# define JSONCONS_HAS_FLOAT128 +#endif +#endif +#endif +#endif + +#if defined(__GNUC__) +#if defined(_GLIBCXX_USE_FLOAT128) +# define JSONCONS_HAS_FLOAT128 +#endif +#endif + +#if defined(__clang__) +#if (defined(linux) || defined(__linux) || defined(__linux__) || defined(__GNU__) || defined(__GLIBC__)) && !defined(_CRAYC) +#if (__clang_major__ >= 4) && defined(__has_include) +#if __has_include() +# define JSONCONS_HAS_FLOAT128 +#endif +#endif +#endif +#endif + +// Follows boost config/detail/suffix.hpp +#if defined(JSONCONS_HAS_INT128) && defined(__cplusplus) +namespace jsoncons{ +# ifdef __GNUC__ + __extension__ typedef __int128 int128_type; + __extension__ typedef unsigned __int128 uint128_type; +# else + typedef __int128 int128_type; + typedef unsigned __int128 uint128_type; +# endif +} +#endif +#if defined(JSONCONS_HAS_FLOAT128) && defined(__cplusplus) +namespace jsoncons { +# ifdef __GNUC__ + __extension__ typedef __float128 float128_type; +# else + typedef __float128 float128_type; +# endif +} +#endif + +#if defined(_MSC_VER) && _MSC_VER <= 1900 + #define JSONCONS_COPY(first,last,d_first) std::copy(first, last, stdext::make_checked_array_iterator(d_first, static_cast(std::distance(first, last)))) +#else + #define JSONCONS_COPY(first,last,d_first) std::copy(first, last, d_first) +#endif + +#if defined(_MSC_VER) && _MSC_VER <= 1900 +#define JSONCONS_CONSTEXPR +#else +#define JSONCONS_CONSTEXPR constexpr +#endif + +namespace jsoncons { + + class assertion_error : public std::runtime_error + { + public: + assertion_error(const std::string& s) noexcept + : std::runtime_error(s) + { + } + const char* what() const noexcept override + { + return std::runtime_error::what(); + } + }; + +} // namespace jsoncons + +#define JSONCONS_STR2(x) #x +#define JSONCONS_STR(x) JSONCONS_STR2(x) + +#ifdef _DEBUG +#define JSONCONS_ASSERT(x) if (!(x)) { \ + JSONCONS_THROW(jsoncons::assertion_error("assertion '" #x "' failed at " __FILE__ ":" \ + JSONCONS_STR(__LINE__))); } +#else +#define JSONCONS_ASSERT(x) if (!(x)) { \ + JSONCONS_THROW(jsoncons::assertion_error("assertion '" #x "' failed at <> :" \ + JSONCONS_STR( 0 ))); } +#endif // _DEBUG + +#endif // JSONCONS_COMPILER_SUPPORT_HPP diff --git a/include/jsoncons/config/jsoncons_config.hpp b/include/jsoncons/config/jsoncons_config.hpp new file mode 100644 index 0000000..63c437b --- /dev/null +++ b/include/jsoncons/config/jsoncons_config.hpp @@ -0,0 +1,308 @@ +// Copyright 2019 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_CONFIG_JSONCONS_CONFIG_HPP +#define JSONCONS_CONFIG_JSONCONS_CONFIG_HPP + +#include +#include +#include +#include + +#if !defined(JSONCONS_HAS_STD_STRING_VIEW) +#include +namespace jsoncons { +using jsoncons::detail::basic_string_view; +using string_view = basic_string_view>; +using wstring_view = basic_string_view>; +} +#else +#include +namespace jsoncons { +using std::basic_string_view; +using std::string_view; +using std::wstring_view; +} +#endif + +#if !defined(JSONCONS_HAS_STD_SPAN) +#include +namespace jsoncons { +using jsoncons::detail::span; +} +#else +#include +namespace jsoncons { +using std::span; +} +#endif + +#if defined(JSONCONS_HAS_STD_OPTIONAL) + #include + namespace jsoncons { + using std::optional; + } +#elif defined(JSONCONS_HAS_BOOST_OPTIONAL) + #include + namespace jsoncons { + using boost::optional; + } +#else + #include + namespace jsoncons { + using jsoncons::detail::optional; +} +#endif // !defined(JSONCONS_HAS_STD_OPTIONAL) + +#if !defined(JSONCONS_HAS_STD_ENDIAN) +#include +namespace jsoncons { +using jsoncons::detail::endian; +} +#else +#include +namespace jsoncons +{ + using std::endian; +} +#endif + +#if !defined(JSONCONS_HAS_STD_MAKE_UNIQUE) + +#include +#include +#include +#include + +namespace jsoncons { + + template + struct unique_if + { + using value_is_not_array = std::unique_ptr; + }; + + template + struct unique_if + { + typedef std::unique_ptr value_is_array_of_unknown_bound; + }; + + template + struct unique_if { + using value_is_array_of_known_bound = void; + }; + + template + typename unique_if::value_is_not_array + make_unique(Args&&... args) + { + return std::unique_ptr(new T(std::forward(args)...)); + } + + template + typename unique_if::value_is_array_of_unknown_bound + make_unique(std::size_t n) + { + using U = typename std::remove_extent::type; + return std::unique_ptr(new U[n]()); + } + + template + typename unique_if::value_is_array_of_known_bound + make_unique(Args&&...) = delete; +} // jsoncons + +#else + +#include +namespace jsoncons +{ + using std::make_unique; +} + +#endif // !defined(JSONCONS_HAS_STD_MAKE_UNIQUE) + +namespace jsoncons { +namespace binary { + + // native_to_big + + template + typename std::enable_if::type + native_to_big(T val, OutputIt d_first) + { + uint8_t buf[sizeof(T)]; + std::memcpy(buf, &val, sizeof(T)); + for (auto item : buf) + { + *d_first++ = item; + } + } + + template + typename std::enable_if::type + native_to_big(T val, OutputIt d_first) + { + T val2 = byte_swap(val); + uint8_t buf[sizeof(T)]; + std::memcpy(buf, &val2, sizeof(T)); + for (auto item : buf) + { + *d_first++ = item; + } + } + + // native_to_little + + template + typename std::enable_if::type + native_to_little(T val, OutputIt d_first) + { + uint8_t buf[sizeof(T)]; + std::memcpy(buf, &val, sizeof(T)); + for (auto item : buf) + { + *d_first++ = item; + } + } + + template + typename std::enable_if::type + native_to_little(T val, OutputIt d_first) + { + T val2 = byte_swap(val); + uint8_t buf[sizeof(T)]; + std::memcpy(buf, &val2, sizeof(T)); + for (auto item : buf) + { + *d_first++ = item; + } + } + + // big_to_native + + template + typename std::enable_if::type + big_to_native(const uint8_t* first, std::size_t count) + { + if (sizeof(T) > count) + { + return T{}; + } + T val; + std::memcpy(&val,first,sizeof(T)); + return val; + } + + template + typename std::enable_if::type + big_to_native(const uint8_t* first, std::size_t count) + { + if (sizeof(T) > count) + { + return T{}; + } + T val; + std::memcpy(&val,first,sizeof(T)); + return byte_swap(val); + } + + // little_to_native + + template + typename std::enable_if::type + little_to_native(const uint8_t* first, std::size_t count) + { + if (sizeof(T) > count) + { + return T{}; + } + T val; + std::memcpy(&val,first,sizeof(T)); + return val; + } + + template + typename std::enable_if::type + little_to_native(const uint8_t* first, std::size_t count) + { + if (sizeof(T) > count) + { + return T{}; + } + T val; + std::memcpy(&val,first,sizeof(T)); + return byte_swap(val); + } + +} // binary +} // jsoncons + +namespace jsoncons { + + template + constexpr const CharT* cstring_constant_of_type(const char* c, const wchar_t* w); + + template<> inline + constexpr const char* cstring_constant_of_type(const char* c, const wchar_t*) + { + return c; + } + template<> inline + constexpr const wchar_t* cstring_constant_of_type(const char*, const wchar_t* w) + { + return w; + } + + template + std::basic_string string_constant_of_type(const char* c, const wchar_t* w); + + template<> inline + std::string string_constant_of_type(const char* c, const wchar_t*) + { + return std::string(c); + } + template<> inline + std::wstring string_constant_of_type(const char*, const wchar_t* w) + { + return std::wstring(w); + } + + template + jsoncons::basic_string_view string_view_constant_of_type(const char* c, const wchar_t* w); + + template<> inline + jsoncons::string_view string_view_constant_of_type(const char* c, const wchar_t*) + { + return jsoncons::string_view(c); + } + template<> inline + jsoncons::wstring_view string_view_constant_of_type(const char*, const wchar_t* w) + { + return jsoncons::wstring_view(w); + } + +} // jsoncons + +#define JSONCONS_EXPAND(X) X +#define JSONCONS_QUOTE(Prefix, A) JSONCONS_EXPAND(Prefix ## #A) + +#define JSONCONS_CSTRING_CONSTANT(CharT, Str) cstring_constant_of_type(Str, JSONCONS_QUOTE(L, Str)) +#define JSONCONS_STRING_CONSTANT(CharT, Str) string_constant_of_type(Str, JSONCONS_QUOTE(L, Str)) +#define JSONCONS_STRING_VIEW_CONSTANT(CharT, Str) string_view_constant_of_type(Str, JSONCONS_QUOTE(L, Str)) + +#if defined(__clang__) +#define JSONCONS_HAS_STD_REGEX 1 +#elif (defined(__GNUC__) && (__GNUC__ == 4)) && (defined(__GNUC__) && __GNUC_MINOR__ < 9) +// GCC 4.8 has broken regex support: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53631 +#else +#define JSONCONS_HAS_STD_REGEX 1 +#endif + +#endif // JSONCONS_CONFIG_JSONCONS_CONFIG_HPP + + diff --git a/include/jsoncons/config/version.hpp b/include/jsoncons/config/version.hpp new file mode 100644 index 0000000..7f11eef --- /dev/null +++ b/include/jsoncons/config/version.hpp @@ -0,0 +1,40 @@ +// Copyright 2017 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_VERSION_HPP +#define JSONCONS_VERSION_HPP + +#include + +#define JSONCONS_VERSION_MAJOR 0 +#define JSONCONS_VERSION_MINOR 168 +#define JSONCONS_VERSION_PATCH 7 + +namespace jsoncons { + +struct versioning_info +{ + unsigned int const major; + unsigned int const minor; + unsigned int const patch; + + friend std::ostream& operator<<(std::ostream& os, const versioning_info& ver) + { + os << ver.major << '.' + << ver.minor << '.' + << ver.patch; + return os; + } +}; + +constexpr versioning_info version() +{ + return versioning_info{JSONCONS_VERSION_MAJOR, JSONCONS_VERSION_MINOR, JSONCONS_VERSION_PATCH}; +} + +} + +#endif diff --git a/include/jsoncons/conv_error.hpp b/include/jsoncons/conv_error.hpp new file mode 100644 index 0000000..cad5460 --- /dev/null +++ b/include/jsoncons/conv_error.hpp @@ -0,0 +1,218 @@ +/// Copyright 2019 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_CONV_ERROR_HPP +#define JSONCONS_CONV_ERROR_HPP + +#include +#include + +namespace jsoncons { + + class conv_error : public std::system_error, public virtual json_exception + { + std::size_t line_number_; + std::size_t column_number_; + mutable std::string what_; + public: + conv_error(std::error_code ec) + : std::system_error(ec), line_number_(0), column_number_(0) + { + } + conv_error(std::error_code ec, const std::string& what_arg) + : std::system_error(ec, what_arg), line_number_(0), column_number_(0) + { + } + conv_error(std::error_code ec, std::size_t position) + : std::system_error(ec), line_number_(0), column_number_(position) + { + } + conv_error(std::error_code ec, std::size_t line, std::size_t column) + : std::system_error(ec), line_number_(line), column_number_(column) + { + } + conv_error(const conv_error& other) = default; + + conv_error(conv_error&& other) = default; + + const char* what() const noexcept override + { + if (what_.empty()) + { + JSONCONS_TRY + { + what_.append(std::system_error::what()); + if (line_number_ != 0 && column_number_ != 0) + { + what_.append(" at line "); + what_.append(std::to_string(line_number_)); + what_.append(" and column "); + what_.append(std::to_string(column_number_)); + } + else if (column_number_ != 0) + { + what_.append(" at position "); + what_.append(std::to_string(column_number_)); + } + return what_.c_str(); + } + JSONCONS_CATCH(...) + { + return std::system_error::what(); + } + } + else + { + return what_.c_str(); + } + } + + std::size_t line() const noexcept + { + return line_number_; + } + + std::size_t column() const noexcept + { + return column_number_; + } + }; + + enum class conv_errc + { + success = 0, + conversion_failed, + not_utf8, + not_wide_char, + not_vector, + not_array, + not_map, + not_pair, + not_string, + not_string_view, + not_byte_string, + not_byte_string_view, + not_integer, + not_signed_integer, + not_unsigned_integer, + not_bigint, + not_double, + not_bool, + not_variant, + not_nullptr, + not_jsoncons_null_type, + not_bitset, + not_base64, + not_base64url, + not_base16 + }; + + template + struct decode_result + { + InputIt it; + conv_errc ec; + }; + +#if !defined(JSONCONS_NO_DEPRECATED) +JSONCONS_DEPRECATED_MSG("Instead, use conv_error") typedef conv_error convert_error; +#endif + +} // namespace jsoncons + +namespace std { + template<> + struct is_error_code_enum : public true_type + { + }; +} + +namespace jsoncons { + +namespace detail { + class conv_error_category_impl + : public std::error_category + { + public: + const char* name() const noexcept override + { + return "jsoncons/convert"; + } + std::string message(int ev) const override + { + switch (static_cast(ev)) + { + case conv_errc::conversion_failed: + return "Unable to convert into the provided type"; + case conv_errc::not_utf8: + return "Cannot convert string to UTF-8"; + case conv_errc::not_wide_char: + return "Cannot convert string to wide characters"; + case conv_errc::not_vector: + return "Cannot convert to vector"; + case conv_errc::not_array: + return "Cannot convert to std::array"; + case conv_errc::not_map: + return "Cannot convert to map"; + case conv_errc::not_pair: + return "Cannot convert to std::pair"; + case conv_errc::not_string: + return "Cannot convert to string"; + case conv_errc::not_string_view: + return "Cannot convert to string_view"; + case conv_errc::not_byte_string: + return "Cannot convert to byte_string"; + case conv_errc::not_byte_string_view: + return "Cannot convert to byte_string_view"; + case conv_errc::not_integer: + return "Cannot convert to integer"; + case conv_errc::not_signed_integer: + return "Cannot convert to signed integer"; + case conv_errc::not_unsigned_integer: + return "Cannot convert to unsigned integer"; + case conv_errc::not_bigint: + return "Cannot convert to bigint"; + case conv_errc::not_double: + return "Cannot convert to double"; + case conv_errc::not_bool: + return "Cannot convert to bool"; + case conv_errc::not_variant: + return "Cannot convert to std::variant"; + case conv_errc::not_nullptr: + return "Cannot convert to std::nullptr_t"; + case conv_errc::not_jsoncons_null_type: + return "Cannot convert to jsoncons::null_type"; + case conv_errc::not_bitset: + return "Cannot convert to std::bitset"; + case conv_errc::not_base64: + return "Input is not a base64 encoded string"; + case conv_errc::not_base64url: + return "Input is not a base64url encoded string"; + case conv_errc::not_base16: + return "Input is not a base16 encoded string"; + default: + return "Unknown conversion error"; + } + } + }; +} // detail + +extern inline +const std::error_category& conv_error_category() +{ + static detail::conv_error_category_impl instance; + return instance; +} + +inline +std::error_code make_error_code(conv_errc result) +{ + return std::error_code(static_cast(result),conv_error_category()); +} + +} + +#endif diff --git a/include/jsoncons/converter.hpp b/include/jsoncons/converter.hpp new file mode 100644 index 0000000..15d1917 --- /dev/null +++ b/include/jsoncons/converter.hpp @@ -0,0 +1,296 @@ +// Copyright 2020 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_CONVERTER_HPP +#define JSONCONS_CONVERTER_HPP + +#include // std::error_code +#include +#include +#include +#include +#include // from_integer + +namespace jsoncons { + + template + class converter + { + }; + + // Into list like of bytes + template + class converter::value && + type_traits::is_back_insertable_byte_container::value) || + type_traits::is_basic_byte_string::value>::type> + { + using value_type = typename Into::value_type; + using allocator_type = typename Into::allocator_type; + + public: + + JSONCONS_CPP14_CONSTEXPR + Into from(const byte_string_view& bstr, semantic_tag tag, std::error_code& ec) const + { + Into bytes; + from_(bytes, bstr, tag, ec); + return bytes; + } + + JSONCONS_CPP14_CONSTEXPR + Into from(const byte_string_view& bstr, semantic_tag tag, const allocator_type& alloc, std::error_code& ec) const + { + Into bytes(alloc); + from_(bytes, bstr, tag, ec); + return bytes; + } + + template + JSONCONS_CPP14_CONSTEXPR + Into from(const jsoncons::basic_string_view& s, semantic_tag tag, std::error_code& ec) const + { + Into bytes; + from_(bytes, s, tag, ec); + return bytes; + } + + template + JSONCONS_CPP14_CONSTEXPR + Into from(const jsoncons::basic_string_view& s, semantic_tag tag, const allocator_type& alloc, std::error_code& ec) const + { + Into bytes(alloc); + from_(bytes, s, tag, ec); + return bytes; + } + + private: + JSONCONS_CPP14_CONSTEXPR + void from_(Into& bytes, const byte_string_view& bstr, semantic_tag, std::error_code&) const + { + for (auto ch : bstr) + { + bytes.push_back(static_cast(ch)); + } + } + + template + JSONCONS_CPP14_CONSTEXPR + typename std::enable_if::value>::type + from_(Into& bytes, const jsoncons::basic_string_view& s, semantic_tag tag, std::error_code& ec) const + { + switch (tag) + { + case semantic_tag::base16: + { + auto res = decode_base16(s.begin(), s.end(), bytes); + if (res.ec != conv_errc::success) + { + ec = conv_errc::not_byte_string; + } + break; + } + case semantic_tag::base64: + { + decode_base64(s.begin(), s.end(), bytes); + break; + } + case semantic_tag::base64url: + { + decode_base64url(s.begin(), s.end(), bytes); + break; + } + default: + { + ec = conv_errc::not_byte_string; + break; + } + } + } + + template + typename std::enable_if::value>::type + from_(Into& bytes, const jsoncons::basic_string_view& s, semantic_tag tag, std::error_code& ec) const + { + std::string u; + auto retval = unicode_traits::convert(s.data(), s.size(), u); + if (retval.ec != unicode_traits::conv_errc()) + { + ec = conv_errc::not_utf8; + return; + } + from_(bytes, jsoncons::string_view(u), tag, ec); + } + }; + + // Into string + template + class converter::value>::type> + { + using char_type = typename Into::value_type; + using allocator_type = typename Into::allocator_type; + int dummy_; + public: + explicit converter(int dummy = int()) + : dummy_(dummy) + {} + template + JSONCONS_CPP14_CONSTEXPR + typename std::enable_if::value,Into>::type + from(Integer val, semantic_tag, std::error_code&) const + { + Into s; + jsoncons::detail::from_integer(val, s); + return s; + } + + template + JSONCONS_CPP14_CONSTEXPR + typename std::enable_if::value,Into>::type + from(Integer val, semantic_tag, const allocator_type& alloc, std::error_code&) const + { + Into s(alloc); + jsoncons::detail::from_integer(val, s); + return s; + } + + Into from(double val, semantic_tag, std::error_code&) const + { + Into s; + jsoncons::detail::write_double f{float_chars_format::general,0}; + f(val, s); + return s; + } + + Into from(double val, semantic_tag, const allocator_type& alloc, std::error_code&) const + { + Into s(alloc); + jsoncons::detail::write_double f{float_chars_format::general,0}; + f(val, s); + return s; + } + + Into from(half_arg_t, uint16_t val, semantic_tag, std::error_code&) const + { + Into s; + jsoncons::detail::write_double f{float_chars_format::general,0}; + double x = binary::decode_half(val); + f(x, s); + return s; + } + + Into from(half_arg_t, uint16_t val, semantic_tag, const allocator_type& alloc, std::error_code&) const + { + Into s(alloc); + jsoncons::detail::write_double f{float_chars_format::general,0}; + double x = binary::decode_half(val); + f(x, s); + return s; + } + + template + JSONCONS_CPP14_CONSTEXPR + Into from(const byte_string_view& bytes, semantic_tag tag, std::error_code& ec) const + { + Into s; + from_(s, bytes, tag, ec); + return s; + } + + template + JSONCONS_CPP14_CONSTEXPR + Into from(const byte_string_view& bytes, semantic_tag tag, const allocator_type& alloc, std::error_code& ec) const + { + Into s(alloc); + from_(s, bytes, tag, ec); + return s; + } + + constexpr + Into from(const jsoncons::basic_string_view& s, semantic_tag, std::error_code&) const + { + return Into(s.data(), s.size()); + } + + constexpr + Into from(const jsoncons::basic_string_view& s, semantic_tag, const allocator_type& alloc, std::error_code&) const + { + return Into(s.data(), s.size(), alloc); + } + + JSONCONS_CPP14_CONSTEXPR + Into from(bool val, semantic_tag, std::error_code&) const + { + constexpr const char_type* true_constant = JSONCONS_CSTRING_CONSTANT(char_type,"true"); + constexpr const char_type* false_constant = JSONCONS_CSTRING_CONSTANT(char_type,"false"); + + return val ? Into(true_constant,4) : Into(false_constant,5); + } + + JSONCONS_CPP14_CONSTEXPR + Into from(bool val, semantic_tag, const allocator_type& alloc, std::error_code&) const + { + constexpr const char_type* true_constant = JSONCONS_CSTRING_CONSTANT(char_type,"true"); + constexpr const char_type* false_constant = JSONCONS_CSTRING_CONSTANT(char_type,"false"); + + return val ? Into(true_constant,4,alloc) : Into(false_constant,5,alloc); + } + + JSONCONS_CPP14_CONSTEXPR + Into from(null_type, semantic_tag, std::error_code&) const + { + constexpr const char_type* null_constant = JSONCONS_CSTRING_CONSTANT(char_type,"null"); + + return Into(null_constant,4); + } + + JSONCONS_CPP14_CONSTEXPR + Into from(null_type, semantic_tag, const allocator_type& alloc, std::error_code&) const + { + constexpr const char_type* null_constant = JSONCONS_CSTRING_CONSTANT(char_type,"null"); + + return Into(null_constant,4,alloc); + } + private: + + template + JSONCONS_CPP14_CONSTEXPR + typename std::enable_if::value>::type + from_(Into& s, const byte_string_view& bytes, semantic_tag tag, std::error_code&) const + { + switch (tag) + { + case semantic_tag::base64: + encode_base64(bytes.begin(), bytes.end(), s); + break; + case semantic_tag::base16: + encode_base16(bytes.begin(), bytes.end(), s); + break; + default: + encode_base64url(bytes.begin(), bytes.end(), s); + break; + } + } + + template + typename std::enable_if::value>::type + from_(Into& s, const byte_string_view& bytes, semantic_tag tag, std::error_code& ec) const + { + converter convert{ dummy_ }; + std::string u = convert.from(bytes, tag, ec); + + auto retval = unicode_traits::convert(u.data(), u.size(), s); + if (retval.ec != unicode_traits::conv_errc()) + { + ec = conv_errc::not_wide_char; + } + } + + }; + +} // namespace jsoncons + +#endif + diff --git a/include/jsoncons/decode_json.hpp b/include/jsoncons/decode_json.hpp new file mode 100644 index 0000000..e6ce1a1 --- /dev/null +++ b/include/jsoncons/decode_json.hpp @@ -0,0 +1,209 @@ +// Copyright 2017 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_DECODE_JSON_HPP +#define JSONCONS_DECODE_JSON_HPP + +#include +#include +#include +#include +#include // std::basic_istream +#include +#include + +namespace jsoncons { + + // decode_json + + template + typename std::enable_if::value && + type_traits::is_sequence_of::value,T>::type + decode_json(const Source& s, + const basic_json_decode_options& options = basic_json_decode_options()) + { + using char_type = typename Source::value_type; + + jsoncons::json_decoder decoder; + basic_json_reader> reader(s, decoder, options); + reader.read(); + if (!decoder.is_valid()) + { + JSONCONS_THROW(ser_error(conv_errc::conversion_failed, reader.line(), reader.column())); + } + return decoder.get_result(); + } + + template + typename std::enable_if::value && + type_traits::is_char_sequence::value,T>::type + decode_json(const Source& s, + const basic_json_decode_options& options = basic_json_decode_options()) + { + using char_type = typename Source::value_type; + + basic_json_cursor> cursor(s, options, default_json_parsing()); + jsoncons::json_decoder> decoder; + std::error_code ec; + T val = decode_traits::decode(cursor, decoder, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, cursor.context().line(), cursor.context().column())); + } + return val; + } + + template + typename std::enable_if::value,T>::type + decode_json(std::basic_istream& is, + const basic_json_decode_options& options = basic_json_decode_options()) + { + jsoncons::json_decoder decoder; + basic_json_reader> reader(is, decoder, options); + reader.read(); + if (!decoder.is_valid()) + { + JSONCONS_THROW(ser_error(conv_errc::conversion_failed, reader.line(), reader.column())); + } + return decoder.get_result(); + } + + template + typename std::enable_if::value,T>::type + decode_json(std::basic_istream& is, + const basic_json_decode_options& options = basic_json_decode_options()) + { + basic_json_cursor cursor(is, options, default_json_parsing()); + json_decoder> decoder{}; + + std::error_code ec; + T val = decode_traits::decode(cursor, decoder, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, cursor.line(), cursor.column())); + } + return val; + } + + template + typename std::enable_if::value,T>::type + decode_json(InputIt first, InputIt last, + const basic_json_decode_options::value_type>& options = + basic_json_decode_options::value_type>()) + { + using char_type = typename std::iterator_traits::value_type; + + jsoncons::json_decoder decoder; + basic_json_reader> reader(iterator_source(first,last), decoder, options); + reader.read(); + if (!decoder.is_valid()) + { + JSONCONS_THROW(ser_error(conv_errc::conversion_failed, reader.line(), reader.column())); + } + return decoder.get_result(); + } + + template + typename std::enable_if::value,T>::type + decode_json(InputIt first, InputIt last, + const basic_json_decode_options::value_type>& options = + basic_json_decode_options::value_type>()) + { + using char_type = typename std::iterator_traits::value_type; + + basic_json_cursor> cursor(iterator_source(first, last), options, default_json_parsing()); + jsoncons::json_decoder> decoder; + std::error_code ec; + T val = decode_traits::decode(cursor, decoder, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, cursor.line(), cursor.column())); + } + return val; + } + + // With leading allocator parameter + + template + typename std::enable_if::value && + type_traits::is_sequence_of::value,T>::type + decode_json(temp_allocator_arg_t, const TempAllocator& temp_alloc, + const Source& s, + const basic_json_decode_options& options = basic_json_decode_options()) + { + using char_type = typename Source::value_type; + + json_decoder decoder(temp_alloc); + + basic_json_reader,TempAllocator> reader(s, decoder, options, temp_alloc); + reader.read(); + if (!decoder.is_valid()) + { + JSONCONS_THROW(ser_error(conv_errc::conversion_failed, reader.line(), reader.column())); + } + return decoder.get_result(); + } + + template + typename std::enable_if::value && + type_traits::is_char_sequence::value,T>::type + decode_json(temp_allocator_arg_t, const TempAllocator& temp_alloc, + const Source& s, + const basic_json_decode_options& options = basic_json_decode_options()) + { + using char_type = typename Source::value_type; + + basic_json_cursor,TempAllocator> cursor(s, options, default_json_parsing(), temp_alloc); + json_decoder,TempAllocator> decoder(result_allocator_arg, temp_alloc, temp_alloc); + + std::error_code ec; + T val = decode_traits::decode(cursor, decoder, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, cursor.context().line(), cursor.context().column())); + } + return val; + } + + template + typename std::enable_if::value,T>::type + decode_json(temp_allocator_arg_t, const TempAllocator& temp_alloc, + std::basic_istream& is, + const basic_json_decode_options& options = basic_json_decode_options()) + { + json_decoder decoder(temp_alloc); + + basic_json_reader,TempAllocator> reader(is, decoder, options, temp_alloc); + reader.read(); + if (!decoder.is_valid()) + { + JSONCONS_THROW(ser_error(conv_errc::conversion_failed, reader.line(), reader.column())); + } + return decoder.get_result(); + } + + template + typename std::enable_if::value,T>::type + decode_json(temp_allocator_arg_t, const TempAllocator& temp_alloc, + std::basic_istream& is, + const basic_json_decode_options& options = basic_json_decode_options()) + { + basic_json_cursor,TempAllocator> cursor(is, options, default_json_parsing(), temp_alloc); + json_decoder,TempAllocator> decoder(result_allocator_arg, temp_alloc,temp_alloc); + + std::error_code ec; + T val = decode_traits::decode(cursor, decoder, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, cursor.context().line(), cursor.context().column())); + } + return val; + } + +} // jsoncons + +#endif + diff --git a/include/jsoncons/decode_traits.hpp b/include/jsoncons/decode_traits.hpp new file mode 100644 index 0000000..2c9ee6e --- /dev/null +++ b/include/jsoncons/decode_traits.hpp @@ -0,0 +1,651 @@ +// Copyright 2017 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_DECODE_TRAITS_HPP +#define JSONCONS_DECODE_TRAITS_HPP + +#include +#include +#include +#include +#include // std::enable_if, std::true_type, std::false_type +#include +#include +#include +#include +#include +#include + +namespace jsoncons { + + // decode_traits + + template + struct decode_traits + { + template + static T decode(basic_staj_cursor& cursor, + json_decoder& decoder, + std::error_code& ec) + { + decoder.reset(); + cursor.read_to(decoder, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, cursor.context().line(), cursor.context().column())); + } + else if (!decoder.is_valid()) + { + JSONCONS_THROW(ser_error(conv_errc::conversion_failed, cursor.context().line(), cursor.context().column())); + } + return decoder.get_result().template as(); + } + }; + + // specializations + + // primitive + + template + struct decode_traits::value + >::type> + { + template + static T decode(basic_staj_cursor& cursor, + json_decoder&, + std::error_code& ec) + { + T v = cursor.current().template get(ec); + return v; + } + }; + + // string + + template + struct decode_traits::value && + std::is_same::value + >::type> + { + template + static T decode(basic_staj_cursor& cursor, + json_decoder&, + std::error_code& ec) + { + T v = cursor.current().template get(ec); + return v; + } + }; + + template + struct decode_traits::value && + !std::is_same::value + >::type> + { + template + static T decode(basic_staj_cursor& cursor, + json_decoder&, + std::error_code& ec) + { + auto val = cursor.current().template get>(ec); + T s; + if (!ec) + { + unicode_traits::convert(val.data(), val.size(), s); + } + return s; + } + }; + + // std::pair + + template + struct decode_traits, CharT> + { + template + static std::pair decode(basic_staj_cursor& cursor, + json_decoder& decoder, + std::error_code& ec) + { + using value_type = std::pair; + cursor.array_expected(ec); + if (ec) + { + return value_type{}; + } + if (cursor.current().event_type() != staj_event_type::begin_array) + { + ec = conv_errc::not_pair; + return value_type(); + } + cursor.next(ec); // skip past array + if (ec) + { + return value_type(); + } + + T1 v1 = decode_traits::decode(cursor, decoder, ec); + if (ec) {return value_type();} + cursor.next(ec); + if (ec) {return value_type();} + T2 v2 = decode_traits::decode(cursor, decoder, ec); + if (ec) {return value_type();} + cursor.next(ec); + + if (cursor.current().event_type() != staj_event_type::end_array) + { + ec = conv_errc::not_pair; + return value_type(); + } + return std::make_pair(v1, v2); + } + }; + + // vector like + template + struct decode_traits::value && + type_traits::is_list_like::value && + type_traits::is_back_insertable::value && + !type_traits::is_typed_array::value + >::type> + { + using value_type = typename T::value_type; + + template + static T decode(basic_staj_cursor& cursor, + json_decoder& decoder, + std::error_code& ec) + { + T v; + + cursor.array_expected(ec); + if (ec) + { + return T{}; + } + if (cursor.current().event_type() != staj_event_type::begin_array) + { + ec = conv_errc::not_vector; + return v; + } + cursor.next(ec); + while (cursor.current().event_type() != staj_event_type::end_array && !ec) + { + v.push_back(decode_traits::decode(cursor, decoder, ec)); + if (ec) {return T{};} + cursor.next(ec); + } + return v; + } + }; + + template + struct typed_array_visitor : public default_json_visitor + { + T& v_; + int level_; + public: + using value_type = typename T::value_type; + + typed_array_visitor(T& v) + : default_json_visitor(false,conv_errc::not_vector), v_(v), level_(0) + { + } + private: + bool visit_begin_array(semantic_tag, + const ser_context&, + std::error_code& ec) override + { + if (++level_ != 1) + { + ec = conv_errc::not_vector; + return false; + } + return true; + } + + bool visit_begin_array(std::size_t size, + semantic_tag, + const ser_context&, + std::error_code& ec) override + { + if (++level_ != 1) + { + ec = conv_errc::not_vector; + return false; + } + if (size > 0) + { + reserve_storage(typename std::integral_constant::value>::type(), v_, size); + } + return true; + } + + bool visit_end_array(const ser_context&, + std::error_code& ec) override + { + if (level_ != 1) + { + ec = conv_errc::not_vector; + return false; + } + return false; + } + + bool visit_uint64(uint64_t value, + semantic_tag, + const ser_context&, + std::error_code&) override + { + v_.push_back(static_cast(value)); + return true; + } + + bool visit_int64(int64_t value, + semantic_tag, + const ser_context&, + std::error_code&) override + { + v_.push_back(static_cast(value)); + return true; + } + + bool visit_half(uint16_t value, + semantic_tag, + const ser_context&, + std::error_code&) override + { + return visit_half_(typename std::integral_constant::value>::type(), value); + } + + bool visit_half_(std::true_type, uint16_t value) + { + v_.push_back(static_cast(value)); + return true; + } + + bool visit_half_(std::false_type, uint16_t value) + { + v_.push_back(static_cast(binary::decode_half(value))); + return true; + } + + bool visit_double(double value, + semantic_tag, + const ser_context&, + std::error_code&) override + { + v_.push_back(static_cast(value)); + return true; + } + + bool visit_typed_array(const jsoncons::span& data, + semantic_tag, + const ser_context&, + std::error_code&) override + { + v_ = std::vector(data.begin(),data.end()); + return false; + } + + static + void reserve_storage(std::true_type, T& v, std::size_t new_cap) + { + v.reserve(new_cap); + } + + static + void reserve_storage(std::false_type, T&, std::size_t) + { + } + }; + + template + struct decode_traits::value && + type_traits::is_list_like::value && + type_traits::is_back_insertable_byte_container::value && + type_traits::is_typed_array::value + >::type> + { + using value_type = typename T::value_type; + + template + static T decode(basic_staj_cursor& cursor, + json_decoder&, + std::error_code& ec) + { + cursor.array_expected(ec); + if (ec) + { + return T{}; + } + switch (cursor.current().event_type()) + { + case staj_event_type::byte_string_value: + { + auto bytes = cursor.current().template get(ec); + if (!ec) + { + T v; + if (cursor.current().size() > 0) + { + reserve_storage(typename std::integral_constant::value>::type(), v, cursor.current().size()); + } + for (auto ch : bytes) + { + v.push_back(static_cast(ch)); + } + cursor.next(ec); + return v; + } + else + { + return T{}; + } + } + case staj_event_type::begin_array: + { + T v; + if (cursor.current().size() > 0) + { + reserve_storage(typename std::integral_constant::value>::type(), v, cursor.current().size()); + } + typed_array_visitor visitor(v); + cursor.read_to(visitor, ec); + return v; + } + default: + { + ec = conv_errc::not_vector; + return T{}; + } + } + } + + static void reserve_storage(std::true_type, T& v, std::size_t new_cap) + { + v.reserve(new_cap); + } + + static void reserve_storage(std::false_type, T&, std::size_t) + { + } + }; + + template + struct decode_traits::value && + type_traits::is_list_like::value && + type_traits::is_back_insertable::value && + !type_traits::is_back_insertable_byte_container::value && + type_traits::is_typed_array::value + >::type> + { + using value_type = typename T::value_type; + + template + static T decode(basic_staj_cursor& cursor, + json_decoder&, + std::error_code& ec) + { + cursor.array_expected(ec); + if (ec) + { + return T{}; + } + switch (cursor.current().event_type()) + { + case staj_event_type::begin_array: + { + T v; + if (cursor.current().size() > 0) + { + reserve_storage(typename std::integral_constant::value>::type(), v, cursor.current().size()); + } + typed_array_visitor visitor(v); + cursor.read_to(visitor, ec); + return v; + } + default: + { + ec = conv_errc::not_vector; + return T{}; + } + } + } + + static void reserve_storage(std::true_type, T& v, std::size_t new_cap) + { + v.reserve(new_cap); + } + + static void reserve_storage(std::false_type, T&, std::size_t) + { + } + }; + + // set like + template + struct decode_traits::value && + type_traits::is_list_like::value && + !type_traits::is_back_insertable::value && + type_traits::is_insertable::value + >::type> + { + using value_type = typename T::value_type; + + template + static T decode(basic_staj_cursor& cursor, + json_decoder& decoder, + std::error_code& ec) + { + T v; + + cursor.array_expected(ec); + if (ec) + { + return T{}; + } + if (cursor.current().event_type() != staj_event_type::begin_array) + { + ec = conv_errc::not_vector; + return v; + } + if (cursor.current().size() > 0) + { + reserve_storage(typename std::integral_constant::value>::type(), v, cursor.current().size()); + } + cursor.next(ec); + while (cursor.current().event_type() != staj_event_type::end_array && !ec) + { + v.insert(decode_traits::decode(cursor, decoder, ec)); + if (ec) {return T{};} + cursor.next(ec); + if (ec) {return T{};} + } + return v; + } + + static void reserve_storage(std::true_type, T& v, std::size_t new_cap) + { + v.reserve(new_cap); + } + + static void reserve_storage(std::false_type, T&, std::size_t) + { + } + }; + + // std::array + + template + struct decode_traits,CharT> + { + using value_type = typename std::array::value_type; + + template + static std::array decode(basic_staj_cursor& cursor, + json_decoder& decoder, + std::error_code& ec) + { + std::array v; + cursor.array_expected(ec); + if (ec) + { + v.fill(T()); + return v; + } + v.fill(T{}); + if (cursor.current().event_type() != staj_event_type::begin_array) + { + ec = conv_errc::not_vector; + return v; + } + cursor.next(ec); + for (std::size_t i = 0; i < N && cursor.current().event_type() != staj_event_type::end_array && !ec; ++i) + { + v[i] = decode_traits::decode(cursor, decoder, ec); + if (ec) {return v;} + cursor.next(ec); + if (ec) {return v;} + } + return v; + } + }; + + // map like + + template + struct decode_traits::value && + type_traits::is_map_like::value && + type_traits::is_constructible_from_const_pointer_and_size::value + >::type> + { + using mapped_type = typename T::mapped_type; + using value_type = typename T::value_type; + using key_type = typename T::key_type; + + template + static T decode(basic_staj_cursor& cursor, + json_decoder& decoder, + std::error_code& ec) + { + T val; + if (cursor.current().event_type() != staj_event_type::begin_object) + { + ec = conv_errc::not_map; + return val; + } + if (cursor.current().size() > 0) + { + reserve_storage(typename std::integral_constant::value>::type(), val, cursor.current().size()); + } + cursor.next(ec); + + while (cursor.current().event_type() != staj_event_type::end_object && !ec) + { + if (cursor.current().event_type() != staj_event_type::key) + { + ec = json_errc::expected_key; + return val; + } + auto key = cursor.current().template get(ec); + if (ec) return val; + cursor.next(ec); + if (ec) return val; + val.emplace(std::move(key),decode_traits::decode(cursor, decoder, ec)); + if (ec) {return val;} + cursor.next(ec); + if (ec) {return val;} + } + return val; + } + + static void reserve_storage(std::true_type, T& v, std::size_t new_cap) + { + v.reserve(new_cap); + } + + static void reserve_storage(std::false_type, T&, std::size_t) + { + } + }; + + template + struct decode_traits::value && + type_traits::is_map_like::value && + std::is_integral::value + >::type> + { + using mapped_type = typename T::mapped_type; + using value_type = typename T::value_type; + using key_type = typename T::key_type; + + template + static T decode(basic_staj_cursor& cursor, + json_decoder& decoder, + std::error_code& ec) + { + T val; + if (cursor.current().event_type() != staj_event_type::begin_object) + { + ec = conv_errc::not_map; + return val; + } + if (cursor.current().size() > 0) + { + reserve_storage(typename std::integral_constant::value>::type(), val, cursor.current().size()); + } + cursor.next(ec); + + while (cursor.current().event_type() != staj_event_type::end_object && !ec) + { + if (cursor.current().event_type() != staj_event_type::key) + { + ec = json_errc::expected_key; + return val; + } + auto s = cursor.current().template get>(ec); + if (ec) return val; + key_type n{0}; + auto r = jsoncons::detail::to_integer(s.data(), s.size(), n); + if (r.ec != jsoncons::detail::to_integer_errc()) + { + ec = json_errc::invalid_number; + return val; + } + cursor.next(ec); + if (ec) return val; + val.emplace(n, decode_traits::decode(cursor, decoder, ec)); + if (ec) {return val;} + cursor.next(ec); + if (ec) {return val;} + } + return val; + } + + static void reserve_storage(std::true_type, T& v, std::size_t new_cap) + { + v.reserve(new_cap); + } + + static void reserve_storage(std::false_type, T&, std::size_t) + { + } + }; + +} // jsoncons + +#endif + diff --git a/include/jsoncons/detail/endian.hpp b/include/jsoncons/detail/endian.hpp new file mode 100644 index 0000000..d47a0f7 --- /dev/null +++ b/include/jsoncons/detail/endian.hpp @@ -0,0 +1,44 @@ +// Copyright 2020 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_DETAIL_ENDIAN_HPP +#define JSONCONS_DETAIL_ENDIAN_HPP + +#if defined(__sun) +# include +#endif + +namespace jsoncons { +namespace detail { + + enum class endian + { + #if defined(_MSC_VER) + // MSVC, which implies Windows, which implies little-endian + little = 0, + big = 1, + native = little + #elif defined(__ORDER_LITTLE_ENDIAN__) && defined(__ORDER_BIG_ENDIAN__) && defined(__BYTE_ORDER__) + little = __ORDER_LITTLE_ENDIAN__, + big = __ORDER_BIG_ENDIAN__, + native = __BYTE_ORDER__ + #elif defined(_BIG_ENDIAN) && !defined(_LITTLE_ENDIAN) + little = 0, + big = 1, + native = big + #elif !defined(_BIG_ENDIAN) && defined(_LITTLE_ENDIAN) + little = 0, + big = 1, + native = little + #else + #error "Unable to determine byte order!" + #endif + }; + +} // namespace detail +} // namespace jsoncons + +#endif diff --git a/include/jsoncons/detail/grisu3.hpp b/include/jsoncons/detail/grisu3.hpp new file mode 100644 index 0000000..771cf1d --- /dev/null +++ b/include/jsoncons/detail/grisu3.hpp @@ -0,0 +1,312 @@ +/* +Implements the Grisu3 algorithm for printing floating-point numbers. + +Follows Florian Loitsch's grisu3_59_56 implementation, available at +http://florian.loitsch.com/publications, in bench.tar.gz, with +minor modifications. +*/ + +/* + Copyright (c) 2009 Florian Loitsch + + Permission is hereby granted, free of charge, to any person + obtaining a copy of this software and associated documentation + files (the "Software"), to deal in the Software without + restriction, including without limitation the rights to use, + copy, modify, merge, publish, distribute, sublicense, and/or sell + copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following + conditions: + + The above copyright notice and this permission notice shall be + included in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES + OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT + HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifndef JSONCONS_GRISU3_HPP +#define JSONCONS_GRISU3_HPP + +#pragma once +#include +#include +#include +#include +#include +#include // std::memmove +#include + +namespace jsoncons { namespace detail { + +// diy_fp + +typedef struct diy_fp_t { + uint64_t f; + int e; +} diy_fp_t; + +inline +diy_fp_t minus(diy_fp_t x, diy_fp_t y) +{ + assert(x.e == y.e); + assert(x.f >= y.f); + diy_fp_t r = { x.f = x.f - y.f, x.e }; + return r; +} + +inline +diy_fp_t multiply(diy_fp_t x, diy_fp_t y) +{ + uint64_t a, b, c, d, ac, bc, ad, bd, tmp; + diy_fp_t r; uint64_t M32 = 0xFFFFFFFF; + a = x.f >> 32; b = x.f & M32; + c = y.f >> 32; d = y.f & M32; + ac = a * c; bc = b * c; ad = a * d; bd = b * d; + tmp = (bd >> 32) + (ad & M32) + (bc & M32); + tmp += 1U << 31; /// mult_round + r.f = ac + (ad >> 32) + (bc >> 32) + (tmp >> 32); + r.e = x.e + y.e + 64; + return r; +} + +// k_comp + +inline +int k_comp(int e, int alpha, int /*gamma*/) +{ + constexpr double d_1_log2_10 = 0.30102999566398114; // 1 / lg(10) + int x = alpha - e + 63; + return static_cast(std::ceil(x * d_1_log2_10)); +} + +// powers_ten_round64 + +constexpr int diy_significand_size = 64; + +static constexpr uint64_t powers_ten[] = { 0xbf29dcaba82fdeae, 0xeef453d6923bd65a, 0x9558b4661b6565f8, 0xbaaee17fa23ebf76, 0xe95a99df8ace6f54, 0x91d8a02bb6c10594, 0xb64ec836a47146fa, 0xe3e27a444d8d98b8, 0x8e6d8c6ab0787f73, 0xb208ef855c969f50, 0xde8b2b66b3bc4724, 0x8b16fb203055ac76, 0xaddcb9e83c6b1794, 0xd953e8624b85dd79, 0x87d4713d6f33aa6c, 0xa9c98d8ccb009506, 0xd43bf0effdc0ba48, 0x84a57695fe98746d, 0xa5ced43b7e3e9188, 0xcf42894a5dce35ea, 0x818995ce7aa0e1b2, 0xa1ebfb4219491a1f, 0xca66fa129f9b60a7, 0xfd00b897478238d1, 0x9e20735e8cb16382, 0xc5a890362fddbc63, 0xf712b443bbd52b7c, 0x9a6bb0aa55653b2d, 0xc1069cd4eabe89f9, 0xf148440a256e2c77, 0x96cd2a865764dbca, 0xbc807527ed3e12bd, 0xeba09271e88d976c, 0x93445b8731587ea3, 0xb8157268fdae9e4c, 0xe61acf033d1a45df, 0x8fd0c16206306bac, 0xb3c4f1ba87bc8697, 0xe0b62e2929aba83c, 0x8c71dcd9ba0b4926, 0xaf8e5410288e1b6f, 0xdb71e91432b1a24b, 0x892731ac9faf056f, 0xab70fe17c79ac6ca, 0xd64d3d9db981787d, 0x85f0468293f0eb4e, 0xa76c582338ed2622, 0xd1476e2c07286faa, 0x82cca4db847945ca, 0xa37fce126597973d, 0xcc5fc196fefd7d0c, 0xff77b1fcbebcdc4f, 0x9faacf3df73609b1, 0xc795830d75038c1e, 0xf97ae3d0d2446f25, 0x9becce62836ac577, 0xc2e801fb244576d5, 0xf3a20279ed56d48a, 0x9845418c345644d7, 0xbe5691ef416bd60c, 0xedec366b11c6cb8f, 0x94b3a202eb1c3f39, 0xb9e08a83a5e34f08, 0xe858ad248f5c22ca, 0x91376c36d99995be, 0xb58547448ffffb2e, 0xe2e69915b3fff9f9, 0x8dd01fad907ffc3c, 0xb1442798f49ffb4b, 0xdd95317f31c7fa1d, 0x8a7d3eef7f1cfc52, 0xad1c8eab5ee43b67, 0xd863b256369d4a41, 0x873e4f75e2224e68, 0xa90de3535aaae202, 0xd3515c2831559a83, 0x8412d9991ed58092, 0xa5178fff668ae0b6, 0xce5d73ff402d98e4, 0x80fa687f881c7f8e, 0xa139029f6a239f72, 0xc987434744ac874f, 0xfbe9141915d7a922, 0x9d71ac8fada6c9b5, 0xc4ce17b399107c23, 0xf6019da07f549b2b, 0x99c102844f94e0fb, 0xc0314325637a193a, 0xf03d93eebc589f88, 0x96267c7535b763b5, 0xbbb01b9283253ca3, 0xea9c227723ee8bcb, 0x92a1958a7675175f, 0xb749faed14125d37, 0xe51c79a85916f485, 0x8f31cc0937ae58d3, 0xb2fe3f0b8599ef08, 0xdfbdcece67006ac9, 0x8bd6a141006042be, 0xaecc49914078536d, 0xda7f5bf590966849, 0x888f99797a5e012d, 0xaab37fd7d8f58179, 0xd5605fcdcf32e1d7, 0x855c3be0a17fcd26, 0xa6b34ad8c9dfc070, 0xd0601d8efc57b08c, 0x823c12795db6ce57, 0xa2cb1717b52481ed, 0xcb7ddcdda26da269, 0xfe5d54150b090b03, 0x9efa548d26e5a6e2, 0xc6b8e9b0709f109a, 0xf867241c8cc6d4c1, 0x9b407691d7fc44f8, 0xc21094364dfb5637, 0xf294b943e17a2bc4, 0x979cf3ca6cec5b5b, 0xbd8430bd08277231, 0xece53cec4a314ebe, 0x940f4613ae5ed137, 0xb913179899f68584, 0xe757dd7ec07426e5, 0x9096ea6f3848984f, 0xb4bca50b065abe63, 0xe1ebce4dc7f16dfc, 0x8d3360f09cf6e4bd, 0xb080392cc4349ded, 0xdca04777f541c568, 0x89e42caaf9491b61, 0xac5d37d5b79b6239, 0xd77485cb25823ac7, 0x86a8d39ef77164bd, 0xa8530886b54dbdec, 0xd267caa862a12d67, 0x8380dea93da4bc60, 0xa46116538d0deb78, 0xcd795be870516656, 0x806bd9714632dff6, 0xa086cfcd97bf97f4, 0xc8a883c0fdaf7df0, 0xfad2a4b13d1b5d6c, 0x9cc3a6eec6311a64, 0xc3f490aa77bd60fd, 0xf4f1b4d515acb93c, 0x991711052d8bf3c5, 0xbf5cd54678eef0b7, 0xef340a98172aace5, 0x9580869f0e7aac0f, 0xbae0a846d2195713, 0xe998d258869facd7, 0x91ff83775423cc06, 0xb67f6455292cbf08, 0xe41f3d6a7377eeca, 0x8e938662882af53e, 0xb23867fb2a35b28e, 0xdec681f9f4c31f31, 0x8b3c113c38f9f37f, 0xae0b158b4738705f, 0xd98ddaee19068c76, 0x87f8a8d4cfa417ca, 0xa9f6d30a038d1dbc, 0xd47487cc8470652b, 0x84c8d4dfd2c63f3b, 0xa5fb0a17c777cf0a, 0xcf79cc9db955c2cc, 0x81ac1fe293d599c0, 0xa21727db38cb0030, 0xca9cf1d206fdc03c, 0xfd442e4688bd304b, 0x9e4a9cec15763e2f, 0xc5dd44271ad3cdba, 0xf7549530e188c129, 0x9a94dd3e8cf578ba, 0xc13a148e3032d6e8, 0xf18899b1bc3f8ca2, 0x96f5600f15a7b7e5, 0xbcb2b812db11a5de, 0xebdf661791d60f56, 0x936b9fcebb25c996, 0xb84687c269ef3bfb, 0xe65829b3046b0afa, 0x8ff71a0fe2c2e6dc, 0xb3f4e093db73a093, 0xe0f218b8d25088b8, 0x8c974f7383725573, 0xafbd2350644eead0, 0xdbac6c247d62a584, 0x894bc396ce5da772, 0xab9eb47c81f5114f, 0xd686619ba27255a3, 0x8613fd0145877586, 0xa798fc4196e952e7, 0xd17f3b51fca3a7a1, 0x82ef85133de648c5, 0xa3ab66580d5fdaf6, 0xcc963fee10b7d1b3, 0xffbbcfe994e5c620, 0x9fd561f1fd0f9bd4, 0xc7caba6e7c5382c9, 0xf9bd690a1b68637b, 0x9c1661a651213e2d, 0xc31bfa0fe5698db8, 0xf3e2f893dec3f126, 0x986ddb5c6b3a76b8, 0xbe89523386091466, 0xee2ba6c0678b597f, 0x94db483840b717f0, 0xba121a4650e4ddec, 0xe896a0d7e51e1566, 0x915e2486ef32cd60, 0xb5b5ada8aaff80b8, 0xe3231912d5bf60e6, 0x8df5efabc5979c90, 0xb1736b96b6fd83b4, 0xddd0467c64bce4a1, 0x8aa22c0dbef60ee4, 0xad4ab7112eb3929e, 0xd89d64d57a607745, 0x87625f056c7c4a8b, 0xa93af6c6c79b5d2e, 0xd389b47879823479, 0x843610cb4bf160cc, 0xa54394fe1eedb8ff, 0xce947a3da6a9273e, 0x811ccc668829b887, 0xa163ff802a3426a9, 0xc9bcff6034c13053, 0xfc2c3f3841f17c68, 0x9d9ba7832936edc1, 0xc5029163f384a931, 0xf64335bcf065d37d, 0x99ea0196163fa42e, 0xc06481fb9bcf8d3a, 0xf07da27a82c37088, 0x964e858c91ba2655, 0xbbe226efb628afeb, 0xeadab0aba3b2dbe5, 0x92c8ae6b464fc96f, 0xb77ada0617e3bbcb, 0xe55990879ddcaabe, 0x8f57fa54c2a9eab7, 0xb32df8e9f3546564, 0xdff9772470297ebd, 0x8bfbea76c619ef36, 0xaefae51477a06b04, 0xdab99e59958885c5, 0x88b402f7fd75539b, 0xaae103b5fcd2a882, 0xd59944a37c0752a2, 0x857fcae62d8493a5, 0xa6dfbd9fb8e5b88f, 0xd097ad07a71f26b2, 0x825ecc24c8737830, 0xa2f67f2dfa90563b, 0xcbb41ef979346bca, 0xfea126b7d78186bd, 0x9f24b832e6b0f436, 0xc6ede63fa05d3144, 0xf8a95fcf88747d94, 0x9b69dbe1b548ce7d, 0xc24452da229b021c, 0xf2d56790ab41c2a3, 0x97c560ba6b0919a6, 0xbdb6b8e905cb600f, 0xed246723473e3813, 0x9436c0760c86e30c, 0xb94470938fa89bcf, 0xe7958cb87392c2c3, 0x90bd77f3483bb9ba, 0xb4ecd5f01a4aa828, 0xe2280b6c20dd5232, 0x8d590723948a535f, 0xb0af48ec79ace837, 0xdcdb1b2798182245, 0x8a08f0f8bf0f156b, 0xac8b2d36eed2dac6, 0xd7adf884aa879177, 0x86ccbb52ea94baeb, 0xa87fea27a539e9a5, 0xd29fe4b18e88640f, 0x83a3eeeef9153e89, 0xa48ceaaab75a8e2b, 0xcdb02555653131b6, 0x808e17555f3ebf12, 0xa0b19d2ab70e6ed6, 0xc8de047564d20a8c, 0xfb158592be068d2f, 0x9ced737bb6c4183d, 0xc428d05aa4751e4d, 0xf53304714d9265e0, 0x993fe2c6d07b7fac, 0xbf8fdb78849a5f97, 0xef73d256a5c0f77d, 0x95a8637627989aae, 0xbb127c53b17ec159, 0xe9d71b689dde71b0, 0x9226712162ab070e, 0xb6b00d69bb55c8d1, 0xe45c10c42a2b3b06, 0x8eb98a7a9a5b04e3, 0xb267ed1940f1c61c, 0xdf01e85f912e37a3, 0x8b61313bbabce2c6, 0xae397d8aa96c1b78, 0xd9c7dced53c72256, 0x881cea14545c7575, 0xaa242499697392d3, 0xd4ad2dbfc3d07788, 0x84ec3c97da624ab5, 0xa6274bbdd0fadd62, 0xcfb11ead453994ba, 0x81ceb32c4b43fcf5, 0xa2425ff75e14fc32, 0xcad2f7f5359a3b3e, 0xfd87b5f28300ca0e, 0x9e74d1b791e07e48, 0xc612062576589ddb, 0xf79687aed3eec551, 0x9abe14cd44753b53, 0xc16d9a0095928a27, 0xf1c90080baf72cb1, 0x971da05074da7bef, 0xbce5086492111aeb, 0xec1e4a7db69561a5, 0x9392ee8e921d5d07, 0xb877aa3236a4b449, 0xe69594bec44de15b, 0x901d7cf73ab0acd9, 0xb424dc35095cd80f, 0xe12e13424bb40e13, 0x8cbccc096f5088cc, 0xafebff0bcb24aaff, 0xdbe6fecebdedd5bf, 0x89705f4136b4a597, 0xabcc77118461cefd, 0xd6bf94d5e57a42bc, 0x8637bd05af6c69b6, 0xa7c5ac471b478423, 0xd1b71758e219652c, 0x83126e978d4fdf3b, 0xa3d70a3d70a3d70a, 0xcccccccccccccccd, 0x8000000000000000, 0xa000000000000000, 0xc800000000000000, 0xfa00000000000000, 0x9c40000000000000, 0xc350000000000000, 0xf424000000000000, 0x9896800000000000, 0xbebc200000000000, 0xee6b280000000000, 0x9502f90000000000, 0xba43b74000000000, 0xe8d4a51000000000, 0x9184e72a00000000, 0xb5e620f480000000, 0xe35fa931a0000000, 0x8e1bc9bf04000000, 0xb1a2bc2ec5000000, 0xde0b6b3a76400000, 0x8ac7230489e80000, 0xad78ebc5ac620000, 0xd8d726b7177a8000, 0x878678326eac9000, 0xa968163f0a57b400, 0xd3c21bcecceda100, 0x84595161401484a0, 0xa56fa5b99019a5c8, 0xcecb8f27f4200f3a, 0x813f3978f8940984, 0xa18f07d736b90be5, 0xc9f2c9cd04674edf, 0xfc6f7c4045812296, 0x9dc5ada82b70b59e, 0xc5371912364ce305, 0xf684df56c3e01bc7, 0x9a130b963a6c115c, 0xc097ce7bc90715b3, 0xf0bdc21abb48db20, 0x96769950b50d88f4, 0xbc143fa4e250eb31, 0xeb194f8e1ae525fd, 0x92efd1b8d0cf37be, 0xb7abc627050305ae, 0xe596b7b0c643c719, 0x8f7e32ce7bea5c70, 0xb35dbf821ae4f38c, 0xe0352f62a19e306f, 0x8c213d9da502de45, 0xaf298d050e4395d7, 0xdaf3f04651d47b4c, 0x88d8762bf324cd10, 0xab0e93b6efee0054, 0xd5d238a4abe98068, 0x85a36366eb71f041, 0xa70c3c40a64e6c52, 0xd0cf4b50cfe20766, 0x82818f1281ed44a0, 0xa321f2d7226895c8, 0xcbea6f8ceb02bb3a, 0xfee50b7025c36a08, 0x9f4f2726179a2245, 0xc722f0ef9d80aad6, 0xf8ebad2b84e0d58c, 0x9b934c3b330c8577, 0xc2781f49ffcfa6d5, 0xf316271c7fc3908b, 0x97edd871cfda3a57, 0xbde94e8e43d0c8ec, 0xed63a231d4c4fb27, 0x945e455f24fb1cf9, 0xb975d6b6ee39e437, 0xe7d34c64a9c85d44, 0x90e40fbeea1d3a4b, 0xb51d13aea4a488dd, 0xe264589a4dcdab15, 0x8d7eb76070a08aed, 0xb0de65388cc8ada8, 0xdd15fe86affad912, 0x8a2dbf142dfcc7ab, 0xacb92ed9397bf996, 0xd7e77a8f87daf7fc, 0x86f0ac99b4e8dafd, 0xa8acd7c0222311bd, 0xd2d80db02aabd62c, 0x83c7088e1aab65db, 0xa4b8cab1a1563f52, 0xcde6fd5e09abcf27, 0x80b05e5ac60b6178, 0xa0dc75f1778e39d6, 0xc913936dd571c84c, 0xfb5878494ace3a5f, 0x9d174b2dcec0e47b, 0xc45d1df942711d9a, 0xf5746577930d6501, 0x9968bf6abbe85f20, 0xbfc2ef456ae276e9, 0xefb3ab16c59b14a3, 0x95d04aee3b80ece6, 0xbb445da9ca61281f, 0xea1575143cf97227, 0x924d692ca61be758, 0xb6e0c377cfa2e12e, 0xe498f455c38b997a, 0x8edf98b59a373fec, 0xb2977ee300c50fe7, 0xdf3d5e9bc0f653e1, 0x8b865b215899f46d, 0xae67f1e9aec07188, 0xda01ee641a708dea, 0x884134fe908658b2, 0xaa51823e34a7eedf, 0xd4e5e2cdc1d1ea96, 0x850fadc09923329e, 0xa6539930bf6bff46, 0xcfe87f7cef46ff17, 0x81f14fae158c5f6e, 0xa26da3999aef774a, 0xcb090c8001ab551c, 0xfdcb4fa002162a63, 0x9e9f11c4014dda7e, 0xc646d63501a1511e, 0xf7d88bc24209a565, 0x9ae757596946075f, 0xc1a12d2fc3978937, 0xf209787bb47d6b85, 0x9745eb4d50ce6333, 0xbd176620a501fc00, 0xec5d3fa8ce427b00, 0x93ba47c980e98ce0, 0xb8a8d9bbe123f018, 0xe6d3102ad96cec1e, 0x9043ea1ac7e41393, 0xb454e4a179dd1877, 0xe16a1dc9d8545e95, 0x8ce2529e2734bb1d, 0xb01ae745b101e9e4, 0xdc21a1171d42645d, 0x899504ae72497eba, 0xabfa45da0edbde69, 0xd6f8d7509292d603, 0x865b86925b9bc5c2, 0xa7f26836f282b733, 0xd1ef0244af2364ff, 0x8335616aed761f1f, 0xa402b9c5a8d3a6e7, 0xcd036837130890a1, 0x802221226be55a65, 0xa02aa96b06deb0fe, 0xc83553c5c8965d3d, 0xfa42a8b73abbf48d, 0x9c69a97284b578d8, 0xc38413cf25e2d70e, 0xf46518c2ef5b8cd1, 0x98bf2f79d5993803, 0xbeeefb584aff8604, 0xeeaaba2e5dbf6785, 0x952ab45cfa97a0b3, 0xba756174393d88e0, 0xe912b9d1478ceb17, 0x91abb422ccb812ef, 0xb616a12b7fe617aa, 0xe39c49765fdf9d95, 0x8e41ade9fbebc27d, 0xb1d219647ae6b31c, 0xde469fbd99a05fe3, 0x8aec23d680043bee, 0xada72ccc20054aea, 0xd910f7ff28069da4, 0x87aa9aff79042287, 0xa99541bf57452b28, 0xd3fa922f2d1675f2, 0x847c9b5d7c2e09b7, 0xa59bc234db398c25, 0xcf02b2c21207ef2f, 0x8161afb94b44f57d, 0xa1ba1ba79e1632dc, 0xca28a291859bbf93, 0xfcb2cb35e702af78, 0x9defbf01b061adab, 0xc56baec21c7a1916, 0xf6c69a72a3989f5c, 0x9a3c2087a63f6399, 0xc0cb28a98fcf3c80, 0xf0fdf2d3f3c30b9f, 0x969eb7c47859e744, 0xbc4665b596706115, 0xeb57ff22fc0c795a, 0x9316ff75dd87cbd8, 0xb7dcbf5354e9bece, 0xe5d3ef282a242e82, 0x8fa475791a569d11, 0xb38d92d760ec4455, 0xe070f78d3927556b, 0x8c469ab843b89563, 0xaf58416654a6babb, 0xdb2e51bfe9d0696a, 0x88fcf317f22241e2, 0xab3c2fddeeaad25b, 0xd60b3bd56a5586f2, 0x85c7056562757457, 0xa738c6bebb12d16d, 0xd106f86e69d785c8, 0x82a45b450226b39d, 0xa34d721642b06084, 0xcc20ce9bd35c78a5, 0xff290242c83396ce, 0x9f79a169bd203e41, 0xc75809c42c684dd1, 0xf92e0c3537826146, 0x9bbcc7a142b17ccc, 0xc2abf989935ddbfe, 0xf356f7ebf83552fe, 0x98165af37b2153df, 0xbe1bf1b059e9a8d6, 0xeda2ee1c7064130c, 0x9485d4d1c63e8be8, 0xb9a74a0637ce2ee1, 0xe8111c87c5c1ba9a, 0x910ab1d4db9914a0, 0xb54d5e4a127f59c8, 0xe2a0b5dc971f303a, 0x8da471a9de737e24, 0xb10d8e1456105dad, 0xdd50f1996b947519, 0x8a5296ffe33cc930, 0xace73cbfdc0bfb7b, 0xd8210befd30efa5a, 0x8714a775e3e95c78, 0xa8d9d1535ce3b396, 0xd31045a8341ca07c, 0x83ea2b892091e44e, 0xa4e4b66b68b65d61, 0xce1de40642e3f4b9, 0x80d2ae83e9ce78f4, 0xa1075a24e4421731, 0xc94930ae1d529cfd, 0xfb9b7cd9a4a7443c, 0x9d412e0806e88aa6, 0xc491798a08a2ad4f, 0xf5b5d7ec8acb58a3, 0x9991a6f3d6bf1766, 0xbff610b0cc6edd3f, 0xeff394dcff8a948f, 0x95f83d0a1fb69cd9, 0xbb764c4ca7a44410, 0xea53df5fd18d5514, 0x92746b9be2f8552c, 0xb7118682dbb66a77, 0xe4d5e82392a40515, 0x8f05b1163ba6832d, 0xb2c71d5bca9023f8, 0xdf78e4b2bd342cf7, 0x8bab8eefb6409c1a, 0xae9672aba3d0c321, 0xda3c0f568cc4f3e9, 0x8865899617fb1871, 0xaa7eebfb9df9de8e, 0xd51ea6fa85785631, 0x8533285c936b35df, 0xa67ff273b8460357, 0xd01fef10a657842c, 0x8213f56a67f6b29c, 0xa298f2c501f45f43, 0xcb3f2f7642717713, 0xfe0efb53d30dd4d8, 0x9ec95d1463e8a507, 0xc67bb4597ce2ce49, 0xf81aa16fdc1b81db, 0x9b10a4e5e9913129, 0xc1d4ce1f63f57d73, 0xf24a01a73cf2dcd0, 0x976e41088617ca02, 0xbd49d14aa79dbc82, 0xec9c459d51852ba3, 0x93e1ab8252f33b46, 0xb8da1662e7b00a17, 0xe7109bfba19c0c9d, 0x906a617d450187e2, 0xb484f9dc9641e9db, 0xe1a63853bbd26451, 0x8d07e33455637eb3, 0xb049dc016abc5e60, 0xdc5c5301c56b75f7, 0x89b9b3e11b6329bb, 0xac2820d9623bf429, 0xd732290fbacaf134, 0x867f59a9d4bed6c0, 0xa81f301449ee8c70, 0xd226fc195c6a2f8c, 0x83585d8fd9c25db8, 0xa42e74f3d032f526, 0xcd3a1230c43fb26f, 0x80444b5e7aa7cf85, 0xa0555e361951c367, 0xc86ab5c39fa63441, 0xfa856334878fc151, 0x9c935e00d4b9d8d2, 0xc3b8358109e84f07, 0xf4a642e14c6262c9, 0x98e7e9cccfbd7dbe, 0xbf21e44003acdd2d, 0xeeea5d5004981478, 0x95527a5202df0ccb, 0xbaa718e68396cffe, 0xe950df20247c83fd, 0x91d28b7416cdd27e, 0xb6472e511c81471e, 0xe3d8f9e563a198e5, 0x8e679c2f5e44ff8f, 0xb201833b35d63f73, 0xde81e40a034bcf50, 0x8b112e86420f6192, 0xadd57a27d29339f6, 0xd94ad8b1c7380874, 0x87cec76f1c830549, 0xa9c2794ae3a3c69b, 0xd433179d9c8cb841, 0x849feec281d7f329, 0xa5c7ea73224deff3, 0xcf39e50feae16bf0, 0x81842f29f2cce376, 0xa1e53af46f801c53, 0xca5e89b18b602368, 0xfcf62c1dee382c42, 0x9e19db92b4e31ba9, 0xc5a05277621be294, 0xf70867153aa2db39, 0x9a65406d44a5c903, 0xc0fe908895cf3b44, 0xf13e34aabb430a15, 0x96c6e0eab509e64d, 0xbc789925624c5fe1, 0xeb96bf6ebadf77d9, 0x933e37a534cbaae8, 0xb80dc58e81fe95a1, 0xe61136f2227e3b0a, 0x8fcac257558ee4e6, 0xb3bd72ed2af29e20, 0xe0accfa875af45a8, 0x8c6c01c9498d8b89, 0xaf87023b9bf0ee6b, 0xdb68c2ca82ed2a06, 0x892179be91d43a44, 0xab69d82e364948d4 }; +static constexpr int powers_ten_e[] = { -1203, -1200, -1196, -1193, -1190, -1186, -1183, -1180, -1176, -1173, -1170, -1166, -1163, -1160, -1156, -1153, -1150, -1146, -1143, -1140, -1136, -1133, -1130, -1127, -1123, -1120, -1117, -1113, -1110, -1107, -1103, -1100, -1097, -1093, -1090, -1087, -1083, -1080, -1077, -1073, -1070, -1067, -1063, -1060, -1057, -1053, -1050, -1047, -1043, -1040, -1037, -1034, -1030, -1027, -1024, -1020, -1017, -1014, -1010, -1007, -1004, -1000, -997, -994, -990, -987, -984, -980, -977, -974, -970, -967, -964, -960, -957, -954, -950, -947, -944, -940, -937, -934, -931, -927, -924, -921, -917, -914, -911, -907, -904, -901, -897, -894, -891, -887, -884, -881, -877, -874, -871, -867, -864, -861, -857, -854, -851, -847, -844, -841, -838, -834, -831, -828, -824, -821, -818, -814, -811, -808, -804, -801, -798, -794, -791, -788, -784, -781, -778, -774, -771, -768, -764, -761, -758, -754, -751, -748, -744, -741, -738, -735, -731, -728, -725, -721, -718, -715, -711, -708, -705, -701, -698, -695, -691, -688, -685, -681, -678, -675, -671, -668, -665, -661, -658, -655, -651, -648, -645, -642, -638, -635, -632, -628, -625, -622, -618, -615, -612, -608, -605, -602, -598, -595, -592, -588, -585, -582, -578, -575, -572, -568, -565, -562, -558, -555, -552, -549, -545, -542, -539, -535, -532, -529, -525, -522, -519, -515, -512, -509, -505, -502, -499, -495, -492, -489, -485, -482, -479, -475, -472, -469, -465, -462, -459, -455, -452, -449, -446, -442, -439, -436, -432, -429, -426, -422, -419, -416, -412, -409, -406, -402, -399, -396, -392, -389, -386, -382, -379, -376, -372, -369, -366, -362, -359, -356, -353, -349, -346, -343, -339, -336, -333, -329, -326, -323, -319, -316, -313, -309, -306, -303, -299, -296, -293, -289, -286, -283, -279, -276, -273, -269, -266, -263, -259, -256, -253, -250, -246, -243, -240, -236, -233, -230, -226, -223, -220, -216, -213, -210, -206, -203, -200, -196, -193, -190, -186, -183, -180, -176, -173, -170, -166, -163, -160, -157, -153, -150, -147, -143, -140, -137, -133, -130, -127, -123, -120, -117, -113, -110, -107, -103, -100, -97, -93, -90, -87, -83, -80, -77, -73, -70, -67, -63, -60, -57, -54, -50, -47, -44, -40, -37, -34, -30, -27, -24, -20, -17, -14, -10, -7, -4, 0, 3, 6, 10, 13, 16, 20, 23, 26, 30, 33, 36, 39, 43, 46, 49, 53, 56, 59, 63, 66, 69, 73, 76, 79, 83, 86, 89, 93, 96, 99, 103, 106, 109, 113, 116, 119, 123, 126, 129, 132, 136, 139, 142, 146, 149, 152, 156, 159, 162, 166, 169, 172, 176, 179, 182, 186, 189, 192, 196, 199, 202, 206, 209, 212, 216, 219, 222, 226, 229, 232, 235, 239, 242, 245, 249, 252, 255, 259, 262, 265, 269, 272, 275, 279, 282, 285, 289, 292, 295, 299, 302, 305, 309, 312, 315, 319, 322, 325, 328, 332, 335, 338, 342, 345, 348, 352, 355, 358, 362, 365, 368, 372, 375, 378, 382, 385, 388, 392, 395, 398, 402, 405, 408, 412, 415, 418, 422, 425, 428, 431, 435, 438, 441, 445, 448, 451, 455, 458, 461, 465, 468, 471, 475, 478, 481, 485, 488, 491, 495, 498, 501, 505, 508, 511, 515, 518, 521, 524, 528, 531, 534, 538, 541, 544, 548, 551, 554, 558, 561, 564, 568, 571, 574, 578, 581, 584, 588, 591, 594, 598, 601, 604, 608, 611, 614, 617, 621, 624, 627, 631, 634, 637, 641, 644, 647, 651, 654, 657, 661, 664, 667, 671, 674, 677, 681, 684, 687, 691, 694, 697, 701, 704, 707, 711, 714, 717, 720, 724, 727, 730, 734, 737, 740, 744, 747, 750, 754, 757, 760, 764, 767, 770, 774, 777, 780, 784, 787, 790, 794, 797, 800, 804, 807, 810, 813, 817, 820, 823, 827, 830, 833, 837, 840, 843, 847, 850, 853, 857, 860, 863, 867, 870, 873, 877, 880, 883, 887, 890, 893, 897, 900, 903, 907, 910, 913, 916, 920, 923, 926, 930, 933, 936, 940, 943, 946, 950, 953, 956, 960, 963, 966, 970, 973, 976, 980, 983, 986, 990, 993, 996, 1000, 1003, 1006, 1009, 1013, 1016, 1019, 1023, 1026, 1029, 1033, 1036, 1039, 1043, 1046, 1049, 1053, 1056, 1059, 1063, 1066, 1069, 1073, 1076 }; + +inline +diy_fp_t cached_power(int k) +{ + diy_fp_t res; + int index = 343 + k; + res.f = powers_ten[index]; + res.e = powers_ten_e[index]; + return res; +} + +// double + +/* +typedef union { + double d; + uint64_t n; +} converter_t; + +inline +uint64_t double_to_uint64(double d) { converter_t tmp; tmp.d = d; return tmp.n; } + +inline +double uint64_to_double(uint64_t d64) { converter_t tmp; tmp.n = d64; return tmp.d; } +*/ +inline +uint64_t double_to_uint64(double d) {uint64_t d64; std::memcpy(&d64,&d,sizeof(double)); return d64; } + +inline +double uint64_to_double(uint64_t d64) {double d; std::memcpy(&d,&d64,sizeof(double)); return d; } + +constexpr int dp_significand_size = 52; +constexpr int dp_exponent_bias = (0x3FF + dp_significand_size); +constexpr int dp_min_exponent = (-dp_exponent_bias); +constexpr uint64_t dp_exponent_mask = 0x7FF0000000000000; +constexpr uint64_t dp_significand_mask = 0x000FFFFFFFFFFFFF; +constexpr uint64_t dp_hidden_bit = 0x0010000000000000; + +inline +diy_fp_t normalize_diy_fp(diy_fp_t in) +{ + diy_fp_t res = in; + /* Normalize now */ + /* the original number could have been a denormal. */ + while (!(res.f & dp_hidden_bit)) + { + res.f <<= 1; + res.e--; + } + /* do the final shifts in one go. Don't forget the hidden bit (the '-1') */ + res.f <<= (diy_significand_size - dp_significand_size - 1); + res.e = res.e - (diy_significand_size - dp_significand_size - 1); + return res; +} + +inline +diy_fp_t double2diy_fp(double d) +{ + uint64_t d64 = double_to_uint64(d); + int biased_e = (d64 & dp_exponent_mask) >> dp_significand_size; + uint64_t significand = (d64 & dp_significand_mask); + diy_fp_t res; + if (biased_e != 0) + { + res.f = significand + dp_hidden_bit; + res.e = biased_e - dp_exponent_bias; + } + else + { + res.f = significand; + res.e = dp_min_exponent + 1; + } + return res; +} + +inline +diy_fp_t normalize_boundary(diy_fp_t in) +{ + diy_fp_t res = in; + /* Normalize now */ + /* the original number could have been a denormal. */ + while (!(res.f & (dp_hidden_bit << 1))) + { + res.f <<= 1; + res.e--; + } + /* do the final shifts in one go. Don't forget the hidden bit (the '-1') */ + res.f <<= (diy_significand_size - dp_significand_size - 2); + res.e = res.e - (diy_significand_size - dp_significand_size - 2); + return res; +} + +inline +void normalized_boundaries(double d, diy_fp_t *out_m_minus, diy_fp_t *out_m_plus) +{ + diy_fp_t v = double2diy_fp(d); + diy_fp_t pl, mi; + bool significand_is_zero = v.f == dp_hidden_bit; + pl.f = (v.f << 1) + 1; pl.e = v.e - 1; + pl = normalize_boundary(pl); + if (significand_is_zero) + { + mi.f = (v.f << 2) - 1; + mi.e = v.e - 2; + } else + { + mi.f = (v.f << 1) - 1; + mi.e = v.e - 1; + } + int x = mi.e - pl.e; + mi.f <<= x; + mi.e = pl.e; + *out_m_plus = pl; + *out_m_minus = mi; +} + +inline +double random_double() +{ + uint64_t tmp = 0; + int i; + for (i = 0; i < 8; i++) + { + tmp <<= 8; + tmp += rand() % 256; + } + return uint64_to_double(tmp); +} + +// grisu3 + +inline +bool round_weed(char *buffer, int len, + uint64_t wp_W, uint64_t Delta, + uint64_t rest, uint64_t ten_kappa, + uint64_t ulp) +{ + uint64_t wp_Wup = wp_W - ulp; + uint64_t wp_Wdown = wp_W + ulp; + while (rest < wp_Wup && /// round1 + Delta - rest >= ten_kappa && + (rest + ten_kappa < wp_Wup || /// closer + wp_Wup - rest >= rest + ten_kappa - wp_Wup)) + { + buffer[len - 1]--; rest += ten_kappa; + } + if (rest < wp_Wdown && /// round2 + Delta - rest >= ten_kappa && + (rest + ten_kappa < wp_Wdown || + wp_Wdown - rest > rest + ten_kappa - wp_Wdown)) return 0; + return 2 * ulp <= rest && rest <= Delta - 4 * ulp; /// weed +} + +inline +bool digit_gen(diy_fp_t Wm, diy_fp_t W, diy_fp_t Wp, + char *buffer, int *len, int *K) +{ + const uint32_t TEN2 = 100; + + uint32_t div, p1; uint64_t p2, tmp, unit = 1; + int d, kappa; + diy_fp_t one, wp_W, Delta; + Delta = minus(Wp, Wm); Delta.f += 2 * unit; + wp_W = minus(Wp, W); wp_W.f += unit; + one.f = ((uint64_t)1) << -Wp.e; one.e = Wp.e; + p1 = static_cast((Wp.f + 1) >> -one.e); + p2 = (Wp.f + 1) & (one.f - 1); + *len = 0; kappa = 3; div = TEN2; + while (kappa > 0) + { + d = p1 / div; + if (d || *len) buffer[(*len)++] = (char)('0' + d); + p1 %= div; kappa--; + tmp = (((uint64_t)p1) << -one.e) + p2; + if (tmp < Delta.f) + { + *K += kappa; + return round_weed(buffer, *len, wp_W.f, Delta.f, tmp, + ((uint64_t)div) << -one.e, unit); + } + div /= 10; + } + while (1) + { + p2 *= 10; Delta.f *= 10; unit *= 10; + d = static_cast(p2 >> -one.e); + if (d || *len) buffer[(*len)++] = (char)('0' + d); + p2 &= one.f - 1; kappa--; + if (p2 < Delta.f) + { + *K += kappa; + return round_weed(buffer, *len, wp_W.f * unit, Delta.f, p2, + one.f, unit); + } + } +} + +inline +bool grisu3(double v, char *buffer, int *length, int *K) +{ + diy_fp_t w_m, w_p; + int q = 64, alpha = -59, gamma = -56; + normalized_boundaries(v, &w_m, &w_p); + diy_fp_t w = normalize_diy_fp(double2diy_fp(v)); + int mk = k_comp(w_p.e + q, alpha, gamma); + diy_fp_t c_mk = cached_power(mk); + diy_fp_t W = multiply(w, c_mk); + diy_fp_t Wp = multiply(w_p, c_mk); + diy_fp_t Wm = multiply(w_m, c_mk); + *K = -mk; + bool result = digit_gen(Wm, W, Wp, buffer, length, K); + buffer[*length] = 0; + return result; +} + +}} // namespace detail namespace jsoncons + +#endif diff --git a/include/jsoncons/detail/optional.hpp b/include/jsoncons/detail/optional.hpp new file mode 100644 index 0000000..492cd76 --- /dev/null +++ b/include/jsoncons/detail/optional.hpp @@ -0,0 +1,483 @@ +// Copyright 2019 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_DETAIL_OPTIONAL_HPP +#define JSONCONS_DETAIL_OPTIONAL_HPP + +#include // placement new +#include +#include // std::swap +#include +#include + +namespace jsoncons +{ +namespace detail +{ + template + class optional; + + template + struct is_constructible_or_convertible_from_optional + : std::integral_constant< + bool, std::is_constructible&>::value || + std::is_constructible&&>::value || + std::is_constructible&>::value || + std::is_constructible&&>::value || + std::is_convertible&, T1>::value || + std::is_convertible&&, T1>::value || + std::is_convertible&, T1>::value || + std::is_convertible&&, T1>::value> {}; + + template + struct is_constructible_convertible_or_assignable_from_optional + : std::integral_constant< + bool, is_constructible_or_convertible_from_optional::value || + std::is_assignable&>::value || + std::is_assignable&&>::value || + std::is_assignable&>::value || + std::is_assignable&&>::value> {}; + + template + class optional + { + public: + using value_type = T; + private: + bool has_value_; + union { + char dummy_; + T value_; + }; + public: + constexpr optional() noexcept + : has_value_(false), dummy_{} + { + } + + // copy constructors + optional(const optional& other) + : has_value_(false), dummy_{} + { + if (other) + { + construct(*other); + } + } + + // converting + template ::value && + std::is_constructible::value && + std::is_convertible::value && + !is_constructible_or_convertible_from_optional::value && + std::is_copy_constructible::type>::value,int>::type = 0> + optional(const optional& other) + : has_value_(false), dummy_{} + { + if (other) + { + construct(*other); + } + } + + template ::value && + std::is_constructible::value && + !std::is_convertible::value && + !is_constructible_or_convertible_from_optional::value && + std::is_copy_constructible::type>::value,int>::type = 0> + explicit optional(const optional& other) + : has_value_(false), dummy_{} + { + if (other) + { + construct(*other); + } + } + + // move constructors + template + optional(optional&& other, + typename std::enable_if::type>::value>::type* = 0) + : has_value_(false), dummy_{} + { + if (other) + { + construct(std::move(other.value_)); + } + } + + // converting + template + optional(optional&& value, + typename std::enable_if::value && + std::is_constructible::value && + !is_constructible_or_convertible_from_optional::value && + std::is_convertible::value,int>::type = 0) // (8) + : has_value_(true), value_(std::forward(value)) + { + } + + template + explicit optional(optional&& value, + typename std::enable_if::value && + std::is_constructible::value && + !is_constructible_or_convertible_from_optional::value && + !std::is_convertible::value,int>::type = 0) // (8) + : has_value_(true), value_(std::forward(value)) + { + } + + + // value constructors + template + optional(T2&& value, + typename std::enable_if,typename std::decay::type>::value && + std::is_constructible::value && + std::is_convertible::value,int>::type = 0) // (8) + : has_value_(true), value_(std::forward(value)) + { + } + + template + explicit optional(T2&& value, + typename std::enable_if,typename std::decay::type>::value && + std::is_constructible::value && + !std::is_convertible::value,int>::type = 0) // (8) + : has_value_(true), value_(std::forward(value)) + { + } + + ~optional() noexcept + { + destroy(); + } + + optional& operator=(const optional& other) + { + if (other) + { + assign(*other); + } + else + { + reset(); + } + return *this; + } + + optional& operator=(optional&& other ) + { + if (other) + { + assign(std::move(*other)); + } + else + { + reset(); + } + return *this; + } + + template + typename std::enable_if, U>::value && + std::is_constructible::value && + !is_constructible_convertible_or_assignable_from_optional::value && + std::is_assignable::value, + optional&>::type + operator=(const optional& other) + { + if (other) + { + assign(*other); + } + else + { + destroy(); + } + return *this; + } + + template + typename std::enable_if, U>::value && + std::is_constructible::value && + !is_constructible_convertible_or_assignable_from_optional::value && + std::is_assignable::value, + optional&>::type + operator=(optional&& other) + { + if (other) + { + assign(std::move(*other)); + } + else + { + destroy(); + } + return *this; + } + + // value assignment + template + typename std::enable_if, typename std::decay::type>::value && + std::is_constructible::value && + std::is_assignable::value && + !(std::is_scalar::value && std::is_same::type>::value), + optional&>::type + operator=(T2&& v) + { + assign(std::forward(v)); + return *this; + } + + constexpr explicit operator bool() const noexcept + { + return has_value_; + } + constexpr bool has_value() const noexcept + { + return has_value_; + } + +#ifdef _MSC_VER +#pragma warning(push) +#pragma warning(disable : 4702) +#endif // _MSC_VER + + T& value() & + { + return static_cast(*this) + ? get() + : JSONCONS_THROW(std::runtime_error("Bad optional access")), get(); + } + + constexpr const T& value() const & + { + return static_cast(*this) + ? get() + : JSONCONS_THROW(std::runtime_error("Bad optional access")), get(); + } + + template + constexpr T value_or(U&& default_value) const & + { + static_assert(std::is_copy_constructible::value, + "get_value_or: T must be copy constructible"); + static_assert(std::is_convertible::value, + "get_value_or: U must be convertible to T"); + return static_cast(*this) + ? **this + : static_cast(std::forward(default_value)); + } + + template + T value_or(U&& default_value) && + { + static_assert(std::is_move_constructible::value, + "get_value_or: T must be move constructible"); + static_assert(std::is_convertible::value, + "get_value_or: U must be convertible to T"); + return static_cast(*this) ? std::move(**this) + : static_cast(std::forward(default_value)); + } +#ifdef _MSC_VER +#pragma warning(pop) +#endif // _MSC_VER + + const T* operator->() const + { + return std::addressof(this->value_); + } + + T* operator->() + { + return std::addressof(this->value_); + } + + constexpr const T& operator*() const& + { + return value(); + } + + T& operator*() & + { + return value(); + } + + void reset() noexcept + { + destroy(); + } + + void swap(optional& other) noexcept(std::is_nothrow_move_constructible::value /*&& + std::is_nothrow_swappable::value*/) + { + const bool contains_a_value = has_value(); + if (contains_a_value == other.has_value()) + { + if (contains_a_value) + { + using std::swap; + swap(**this, *other); + } + } + else + { + optional& source = contains_a_value ? *this : other; + optional& target = contains_a_value ? other : *this; + target = optional(*source); + source.reset(); + } + } + private: + constexpr const T& get() const { return this->value_; } + T& get() { return this->value_; } + + template + void construct(Args&&... args) + { + ::new (static_cast(&this->value_)) T(std::forward(args)...); + has_value_ = true; + } + + void destroy() noexcept + { + if (has_value_) + { + value_.~T(); + has_value_ = false; + } + } + + template + void assign(U&& u) + { + if (has_value_) + { + value_ = std::forward(u); + } + else + { + construct(std::forward(u)); + } + } + }; + + template + typename std::enable_if::value,void>::type + swap(optional& lhs, optional& rhs) noexcept + { + lhs.swap(rhs); + } + + template + constexpr bool operator==(const optional& lhs, const optional& rhs) noexcept + { + return lhs.has_value() == rhs.has_value() && (!lhs.has_value() || *lhs == *rhs); + } + + template + constexpr bool operator!=(const optional& lhs, const optional& rhs) noexcept + { + return lhs.has_value() != rhs.has_value() || (lhs.has_value() && *lhs != *rhs); + } + + template + constexpr bool operator<(const optional& lhs, const optional& rhs) noexcept + { + return rhs.has_value() && (!lhs.has_value() || *lhs < *rhs); + } + + template + constexpr bool operator>(const optional& lhs, const optional& rhs) noexcept + { + return lhs.has_value() && (!rhs.has_value() || *lhs > *rhs); + } + + template + constexpr bool operator<=(const optional& lhs, const optional& rhs) noexcept + { + return !lhs.has_value() || (rhs.has_value() && *lhs <= *rhs); + } + + template + constexpr bool operator>=(const optional& lhs, const optional& rhs) noexcept + { + return !rhs.has_value() || (lhs.has_value() && *lhs >= *rhs); + } + + template + constexpr bool operator==(const optional& lhs, const T2& rhs) noexcept + { + return lhs ? *lhs == rhs : false; + } + template + constexpr bool operator==(const T1& lhs, const optional& rhs) noexcept + { + return rhs ? lhs == *rhs : false; + } + + template + constexpr bool operator!=(const optional& lhs, const T2& rhs) noexcept + { + return lhs ? *lhs != rhs : true; + } + template + constexpr bool operator!=(const T1& lhs, const optional& rhs) noexcept + { + return rhs ? lhs != *rhs : true; + } + + template + constexpr bool operator<(const optional& lhs, const T2& rhs) noexcept + { + return lhs ? *lhs < rhs : true; + } + template + constexpr bool operator<(const T1& lhs, const optional& rhs) noexcept + { + return rhs ? lhs < *rhs : false; + } + + template + constexpr bool operator<=(const optional& lhs, const T2& rhs) noexcept + { + return lhs ? *lhs <= rhs : true; + } + template + constexpr bool operator<=(const T1& lhs, const optional& rhs) noexcept + { + return rhs ? lhs <= *rhs : false; + } + + template + constexpr bool operator>(const optional& lhs, const T2& rhs) noexcept + { + return lhs ? *lhs > rhs : false; + } + + template + constexpr bool operator>(const T1& lhs, const optional& rhs) noexcept + { + return rhs ? lhs > *rhs : true; + } + + template + constexpr bool operator>=(const optional& lhs, const T2& rhs) noexcept + { + return lhs ? *lhs >= rhs : false; + } + template + constexpr bool operator>=(const T1& lhs, const optional& rhs) noexcept + { + return rhs ? lhs >= *rhs : true; + } + +} // namespace detail +} // namespace jsoncons + +#endif diff --git a/include/jsoncons/detail/parse_number.hpp b/include/jsoncons/detail/parse_number.hpp new file mode 100644 index 0000000..7417ff2 --- /dev/null +++ b/include/jsoncons/detail/parse_number.hpp @@ -0,0 +1,1133 @@ +// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_DETAIL_PARSE_NUMBER_HPP +#define JSONCONS_DETAIL_PARSE_NUMBER_HPP + +#include +#include +#include +#include +#include +#include +#include // std::numeric_limits +#include // std::enable_if +#include +#include +#include +#include + +namespace jsoncons { namespace detail { + + enum class to_integer_errc : uint8_t {success=0, overflow, invalid_digit, invalid_number}; + + class to_integer_error_category_impl + : public std::error_category + { + public: + const char* name() const noexcept override + { + return "jsoncons/to_integer_unchecked"; + } + std::string message(int ev) const override + { + switch (static_cast(ev)) + { + case to_integer_errc::overflow: + return "Integer overflow"; + case to_integer_errc::invalid_digit: + return "Invalid digit"; + case to_integer_errc::invalid_number: + return "Invalid number"; + default: + return "Unknown to_integer_unchecked error"; + } + } + }; + + inline + const std::error_category& to_integer_error_category() + { + static to_integer_error_category_impl instance; + return instance; + } + + inline + std::error_code make_error_code(to_integer_errc e) + { + return std::error_code(static_cast(e),to_integer_error_category()); + } + +} // namespace detail +} // namespace jsoncons + +namespace std { + template<> + struct is_error_code_enum : public true_type + { + }; +} + +namespace jsoncons { namespace detail { + +template +struct to_integer_result +{ + const CharT* ptr; + to_integer_errc ec; + constexpr to_integer_result(const CharT* ptr_) + : ptr(ptr_), ec(to_integer_errc()) + { + } + constexpr to_integer_result(const CharT* ptr_, to_integer_errc ec_) + : ptr(ptr_), ec(ec_) + { + } + + to_integer_result(const to_integer_result&) = default; + + to_integer_result& operator=(const to_integer_result&) = default; + + constexpr explicit operator bool() const noexcept + { + return ec == to_integer_errc(); + } + std::error_code error_code() const + { + return make_error_code(ec); + } +}; + +enum class integer_chars_format : uint8_t {decimal=1,hex}; +enum class integer_chars_state {initial,minus,integer,binary,octal,decimal,base16}; + +template +bool is_base10(const CharT* s, std::size_t length) +{ + integer_chars_state state = integer_chars_state::initial; + + const CharT* end = s + length; + for (;s < end; ++s) + { + switch(state) + { + case integer_chars_state::initial: + { + switch(*s) + { + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': + state = integer_chars_state::decimal; + break; + case '-': + state = integer_chars_state::minus; + break; + default: + return false; + } + break; + } + case integer_chars_state::minus: + { + switch(*s) + { + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': + state = integer_chars_state::decimal; + break; + default: + return false; + } + break; + } + case integer_chars_state::decimal: + { + switch(*s) + { + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': + break; + default: + return false; + } + break; + } + default: + break; + } + } + return state == integer_chars_state::decimal ? true : false; +} + +template +typename std::enable_if::is_specialized && !type_traits::integer_limits::is_signed,to_integer_result>::type +to_integer_decimal(const CharT* s, std::size_t length, T& n) +{ + n = 0; + + integer_chars_state state = integer_chars_state::initial; + + const CharT* end = s + length; + while (s < end) + { + switch(state) + { + case integer_chars_state::initial: + { + switch(*s) + { + case '0': + if (++s == end) + { + return (++s == end) ? to_integer_result(s) : to_integer_result(s, to_integer_errc()); + } + else + { + return to_integer_result(s, to_integer_errc::invalid_digit); + } + case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': // Must be decimal + state = integer_chars_state::decimal; + break; + default: + return to_integer_result(s, to_integer_errc::invalid_digit); + } + break; + } + case integer_chars_state::decimal: + { + static constexpr T max_value = (type_traits::integer_limits::max)(); + static constexpr T max_value_div_10 = max_value / 10; + for (; s < end; ++s) + { + T x = 0; + switch(*s) + { + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': + x = static_cast(*s) - static_cast('0'); + break; + default: + return to_integer_result(s, to_integer_errc::invalid_digit); + } + if (n > max_value_div_10) + { + return to_integer_result(s, to_integer_errc::overflow); + } + n = n * 10; + if (n > max_value - x) + { + return to_integer_result(s, to_integer_errc::overflow); + } + n += x; + } + break; + } + default: + JSONCONS_UNREACHABLE(); + break; + } + } + return (state == integer_chars_state::initial) ? to_integer_result(s, to_integer_errc::invalid_number) : to_integer_result(s, to_integer_errc()); +} + +template +typename std::enable_if::is_specialized && type_traits::integer_limits::is_signed,to_integer_result>::type +to_integer_decimal(const CharT* s, std::size_t length, T& n) +{ + n = 0; + + if (length == 0) + { + return to_integer_result(s, to_integer_errc::invalid_number); + } + + bool is_negative = *s == '-' ? true : false; + if (is_negative) + { + ++s; + --length; + } + + using U = typename type_traits::make_unsigned::type; + + U u; + auto ru = to_integer_decimal(s, length, u); + if (ru.ec != to_integer_errc()) + { + return to_integer_result(ru.ptr, ru.ec); + } + if (is_negative) + { + if (u > static_cast(-((type_traits::integer_limits::lowest)()+T(1))) + U(1)) + { + return to_integer_result(ru.ptr, to_integer_errc::overflow); + } + else + { + n = static_cast(U(0) - u); + return to_integer_result(ru.ptr, to_integer_errc()); + } + } + else + { + if (u > static_cast((type_traits::integer_limits::max)())) + { + return to_integer_result(ru.ptr, to_integer_errc::overflow); + } + else + { + n = static_cast(u); + return to_integer_result(ru.ptr, to_integer_errc()); + } + } +} + +template +typename std::enable_if::is_specialized && !type_traits::integer_limits::is_signed,to_integer_result>::type +to_integer_base16(const CharT* s, std::size_t length, T& n) +{ + n = 0; + + integer_chars_state state = integer_chars_state::initial; + + const CharT* end = s + length; + while (s < end) + { + switch(state) + { + case integer_chars_state::initial: + { + switch(*s) + { + case '0': + if (++s == end) + { + return (++s == end) ? to_integer_result(s) : to_integer_result(s, to_integer_errc()); + } + else + { + return to_integer_result(s, to_integer_errc::invalid_digit); + } + case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': // Must be base16 + case 'a':case 'b':case 'c':case 'd':case 'e':case 'f': + case 'A':case 'B':case 'C':case 'D':case 'E':case 'F': + state = integer_chars_state::base16; + break; + default: + return to_integer_result(s, to_integer_errc::invalid_digit); + } + break; + } + case integer_chars_state::base16: + { + static constexpr T max_value = (type_traits::integer_limits::max)(); + static constexpr T max_value_div_16 = max_value / 16; + for (; s < end; ++s) + { + CharT c = *s; + T x = 0; + switch(*s) + { + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': + x = c - '0'; + break; + case 'a':case 'b':case 'c':case 'd':case 'e':case 'f': + x = c - ('a' - 10); + break; + case 'A':case 'B':case 'C':case 'D':case 'E':case 'F': + x = c - ('A' - 10); + break; + default: + return to_integer_result(s, to_integer_errc::invalid_digit); + } + if (n > max_value_div_16) + { + return to_integer_result(s, to_integer_errc::overflow); + } + n = n * 16; + if (n > max_value - x) + { + return to_integer_result(s, to_integer_errc::overflow); + } + n += x; + } + break; + } + default: + JSONCONS_UNREACHABLE(); + break; + } + } + return (state == integer_chars_state::initial) ? to_integer_result(s, to_integer_errc::invalid_number) : to_integer_result(s, to_integer_errc()); +} + +template +typename std::enable_if::is_specialized && type_traits::integer_limits::is_signed,to_integer_result>::type +to_integer_base16(const CharT* s, std::size_t length, T& n) +{ + n = 0; + + if (length == 0) + { + return to_integer_result(s, to_integer_errc::invalid_number); + } + + bool is_negative = *s == '-' ? true : false; + if (is_negative) + { + ++s; + --length; + } + + using U = typename type_traits::make_unsigned::type; + + U u; + auto ru = to_integer_base16(s, length, u); + if (ru.ec != to_integer_errc()) + { + return to_integer_result(ru.ptr, ru.ec); + } + if (is_negative) + { + if (u > static_cast(-((type_traits::integer_limits::lowest)()+T(1))) + U(1)) + { + return to_integer_result(ru.ptr, to_integer_errc::overflow); + } + else + { + n = static_cast(U(0) - u); + return to_integer_result(ru.ptr, to_integer_errc()); + } + } + else + { + if (u > static_cast((type_traits::integer_limits::max)())) + { + return to_integer_result(ru.ptr, to_integer_errc::overflow); + } + else + { + n = static_cast(u); + return to_integer_result(ru.ptr, to_integer_errc()); + } + } +} + +template +typename std::enable_if::is_specialized && !type_traits::integer_limits::is_signed,to_integer_result>::type +to_integer(const CharT* s, std::size_t length, T& n) +{ + n = 0; + + integer_chars_state state = integer_chars_state::initial; + + const CharT* end = s + length; + while (s < end) + { + switch(state) + { + case integer_chars_state::initial: + { + switch(*s) + { + case '0': + state = integer_chars_state::integer; // Could be binary, octal, hex + ++s; + break; + case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': // Must be decimal + state = integer_chars_state::decimal; + break; + default: + return to_integer_result(s, to_integer_errc::invalid_digit); + } + break; + } + case integer_chars_state::integer: + { + switch(*s) + { + case 'b':case 'B': + { + state = integer_chars_state::binary; + ++s; + break; + } + case 'x':case 'X': + { + state = integer_chars_state::base16; + ++s; + break; + } + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': + { + state = integer_chars_state::octal; + break; + } + default: + return to_integer_result(s, to_integer_errc::invalid_digit); + } + break; + } + case integer_chars_state::binary: + { + static constexpr T max_value = (type_traits::integer_limits::max)(); + static constexpr T max_value_div_2 = max_value / 2; + for (; s < end; ++s) + { + T x = 0; + switch(*s) + { + case '0':case '1': + x = static_cast(*s) - static_cast('0'); + break; + default: + return to_integer_result(s, to_integer_errc::invalid_digit); + } + if (n > max_value_div_2) + { + return to_integer_result(s, to_integer_errc::overflow); + } + n = n * 2; + if (n > max_value - x) + { + return to_integer_result(s, to_integer_errc::overflow); + } + n += x; + } + break; + } + case integer_chars_state::octal: + { + static constexpr T max_value = (type_traits::integer_limits::max)(); + static constexpr T max_value_div_8 = max_value / 8; + for (; s < end; ++s) + { + T x = 0; + switch(*s) + { + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7': + x = static_cast(*s) - static_cast('0'); + break; + default: + return to_integer_result(s, to_integer_errc::invalid_digit); + } + if (n > max_value_div_8) + { + return to_integer_result(s, to_integer_errc::overflow); + } + n = n * 8; + if (n > max_value - x) + { + return to_integer_result(s, to_integer_errc::overflow); + } + n += x; + } + break; + } + case integer_chars_state::decimal: + { + static constexpr T max_value = (type_traits::integer_limits::max)(); + static constexpr T max_value_div_10 = max_value / 10; + for (; s < end; ++s) + { + T x = 0; + switch(*s) + { + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': + x = static_cast(*s) - static_cast('0'); + break; + default: + return to_integer_result(s, to_integer_errc::invalid_digit); + } + if (n > max_value_div_10) + { + return to_integer_result(s, to_integer_errc::overflow); + } + n = n * 10; + if (n > max_value - x) + { + return to_integer_result(s, to_integer_errc::overflow); + } + n += x; + } + break; + } + case integer_chars_state::base16: + { + static constexpr T max_value = (type_traits::integer_limits::max)(); + static constexpr T max_value_div_16 = max_value / 16; + for (; s < end; ++s) + { + CharT c = *s; + T x = 0; + switch (c) + { + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': + x = c - '0'; + break; + case 'a':case 'b':case 'c':case 'd':case 'e':case 'f': + x = c - ('a' - 10); + break; + case 'A':case 'B':case 'C':case 'D':case 'E':case 'F': + x = c - ('A' - 10); + break; + default: + return to_integer_result(s, to_integer_errc::invalid_digit); + } + if (n > max_value_div_16) + { + return to_integer_result(s, to_integer_errc::overflow); + } + n = n * 16; + if (n > max_value - x) + { + return to_integer_result(s, to_integer_errc::overflow); + } + + n += x; + } + break; + } + default: + JSONCONS_UNREACHABLE(); + break; + } + } + return (state == integer_chars_state::initial) ? to_integer_result(s, to_integer_errc::invalid_number) : to_integer_result(s, to_integer_errc()); +} + +template +typename std::enable_if::is_specialized && type_traits::integer_limits::is_signed,to_integer_result>::type +to_integer(const CharT* s, std::size_t length, T& n) +{ + n = 0; + + if (length == 0) + { + return to_integer_result(s, to_integer_errc::invalid_number); + } + + bool is_negative = *s == '-' ? true : false; + if (is_negative) + { + ++s; + --length; + } + + using U = typename type_traits::make_unsigned::type; + + U u; + auto ru = to_integer(s, length, u); + if (ru.ec != to_integer_errc()) + { + return to_integer_result(ru.ptr, ru.ec); + } + if (is_negative) + { + if (u > static_cast(-((type_traits::integer_limits::lowest)()+T(1))) + U(1)) + { + return to_integer_result(ru.ptr, to_integer_errc::overflow); + } + else + { + n = static_cast(U(0) - u); + return to_integer_result(ru.ptr, to_integer_errc()); + } + } + else + { + if (u > static_cast((type_traits::integer_limits::max)())) + { + return to_integer_result(ru.ptr, to_integer_errc::overflow); + } + else + { + n = static_cast(u); + return to_integer_result(ru.ptr, to_integer_errc()); + } + } +} + +template +typename std::enable_if::is_specialized,to_integer_result>::type +to_integer(const CharT* s, T& n) +{ + return to_integer(s, std::char_traits::length(s), n); +} + +// Precondition: s satisfies + +// digit +// digit1-digits +// - digit +// - digit1-digits + +template +typename std::enable_if::is_specialized && !type_traits::integer_limits::is_signed,to_integer_result>::type +to_integer_unchecked(const CharT* s, std::size_t length, T& n) +{ + static_assert(type_traits::integer_limits::is_specialized, "Integer type not specialized"); + JSONCONS_ASSERT(length > 0); + + n = 0; + const CharT* end = s + length; + if (*s == '-') + { + static constexpr T min_value = (type_traits::integer_limits::lowest)(); + static constexpr T min_value_div_10 = min_value / 10; + ++s; + for (; s < end; ++s) + { + T x = (T)*s - (T)('0'); + if (n < min_value_div_10) + { + return to_integer_result(s, to_integer_errc::overflow); + } + n = n * 10; + if (n < min_value + x) + { + return to_integer_result(s, to_integer_errc::overflow); + } + + n -= x; + } + } + else + { + static constexpr T max_value = (type_traits::integer_limits::max)(); + static constexpr T max_value_div_10 = max_value / 10; + for (; s < end; ++s) + { + T x = static_cast(*s) - static_cast('0'); + if (n > max_value_div_10) + { + return to_integer_result(s, to_integer_errc::overflow); + } + n = n * 10; + if (n > max_value - x) + { + return to_integer_result(s, to_integer_errc::overflow); + } + + n += x; + } + } + + return to_integer_result(s, to_integer_errc()); +} + +// Precondition: s satisfies + +// digit +// digit1-digits +// - digit +// - digit1-digits + +template +typename std::enable_if::is_specialized && type_traits::integer_limits::is_signed,to_integer_result>::type +to_integer_unchecked(const CharT* s, std::size_t length, T& n) +{ + static_assert(type_traits::integer_limits::is_specialized, "Integer type not specialized"); + JSONCONS_ASSERT(length > 0); + + n = 0; + + const CharT* end = s + length; + if (*s == '-') + { + static constexpr T min_value = (type_traits::integer_limits::lowest)(); + static constexpr T min_value_div_10 = min_value / 10; + ++s; + for (; s < end; ++s) + { + T x = (T)*s - (T)('0'); + if (n < min_value_div_10) + { + return to_integer_result(s, to_integer_errc::overflow); + } + n = n * 10; + if (n < min_value + x) + { + return to_integer_result(s, to_integer_errc::overflow); + } + + n -= x; + } + } + else + { + static constexpr T max_value = (type_traits::integer_limits::max)(); + static constexpr T max_value_div_10 = max_value / 10; + for (; s < end; ++s) + { + T x = static_cast(*s) - static_cast('0'); + if (n > max_value_div_10) + { + return to_integer_result(s, to_integer_errc::overflow); + } + n = n * 10; + if (n > max_value - x) + { + return to_integer_result(s, to_integer_errc::overflow); + } + + n += x; + } + } + + return to_integer_result(s, to_integer_errc()); +} + +// base16_to_integer + +template +typename std::enable_if::is_specialized && type_traits::integer_limits::is_signed,to_integer_result>::type +base16_to_integer(const CharT* s, std::size_t length, T& n) +{ + static_assert(type_traits::integer_limits::is_specialized, "Integer type not specialized"); + JSONCONS_ASSERT(length > 0); + + n = 0; + + const CharT* end = s + length; + if (*s == '-') + { + static constexpr T min_value = (type_traits::integer_limits::lowest)(); + static constexpr T min_value_div_16 = min_value / 16; + ++s; + for (; s < end; ++s) + { + CharT c = *s; + T x = 0; + switch (c) + { + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': + x = c - '0'; + break; + case 'a':case 'b':case 'c':case 'd':case 'e':case 'f': + x = c - ('a' - 10); + break; + case 'A':case 'B':case 'C':case 'D':case 'E':case 'F': + x = c - ('A' - 10); + break; + default: + return to_integer_result(s, to_integer_errc::invalid_digit); + } + if (n < min_value_div_16) + { + return to_integer_result(s, to_integer_errc::overflow); + } + n = n * 16; + if (n < min_value + x) + { + return to_integer_result(s, to_integer_errc::overflow); + } + n -= x; + } + } + else + { + static constexpr T max_value = (type_traits::integer_limits::max)(); + static constexpr T max_value_div_16 = max_value / 16; + for (; s < end; ++s) + { + CharT c = *s; + T x = 0; + switch (c) + { + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': + x = c - '0'; + break; + case 'a':case 'b':case 'c':case 'd':case 'e':case 'f': + x = c - ('a' - 10); + break; + case 'A':case 'B':case 'C':case 'D':case 'E':case 'F': + x = c - ('A' - 10); + break; + default: + return to_integer_result(s, to_integer_errc::invalid_digit); + } + if (n > max_value_div_16) + { + return to_integer_result(s, to_integer_errc::overflow); + } + n = n * 16; + if (n > max_value - x) + { + return to_integer_result(s, to_integer_errc::overflow); + } + + n += x; + } + } + + return to_integer_result(s, to_integer_errc()); +} + +template +typename std::enable_if::is_specialized && !type_traits::integer_limits::is_signed,to_integer_result>::type +base16_to_integer(const CharT* s, std::size_t length, T& n) +{ + static_assert(type_traits::integer_limits::is_specialized, "Integer type not specialized"); + JSONCONS_ASSERT(length > 0); + + n = 0; + const CharT* end = s + length; + + static constexpr T max_value = (type_traits::integer_limits::max)(); + static constexpr T max_value_div_16 = max_value / 16; + for (; s < end; ++s) + { + CharT c = *s; + T x = *s; + switch (c) + { + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': + x = c - '0'; + break; + case 'a':case 'b':case 'c':case 'd':case 'e':case 'f': + x = c - ('a' - 10); + break; + case 'A':case 'B':case 'C':case 'D':case 'E':case 'F': + x = c - ('A' - 10); + break; + default: + return to_integer_result(s, to_integer_errc::invalid_digit); + } + if (n > max_value_div_16) + { + return to_integer_result(s, to_integer_errc::overflow); + } + n = n * 16; + if (n > max_value - x) + { + return to_integer_result(s, to_integer_errc::overflow); + } + + n += x; + } + + return to_integer_result(s, to_integer_errc()); +} + + +#if defined(JSONCONS_HAS_STD_FROM_CHARS) + +class chars_to +{ +public: + + char get_decimal_point() const + { + return '.'; + } + + template + typename std::enable_if::value,double>::type + operator()(const CharT* s, std::size_t len) const + { + double val = 0; + const auto res = std::from_chars(s, s+len, val); + if (res.ec != std::errc()) + { + JSONCONS_THROW(json_runtime_error("Convert chars to double failed")); + } + return val; + } + + template + typename std::enable_if::value,double>::type + operator()(const CharT* s, std::size_t len) const + { + std::string input(len,'0'); + for (size_t i = 0; i < len; ++i) + { + input[i] = static_cast(s[i]); + } + + double val = 0; + const auto res = std::from_chars(input.data(), input.data() + len, val); + if (res.ec != std::errc()) + { + JSONCONS_THROW(json_runtime_error("Convert chars to double failed")); + } + return val; + } +}; +#elif defined(JSONCONS_HAS_MSC_STRTOD_L) + +class chars_to +{ +private: + _locale_t locale_; +public: + chars_to() + { + locale_ = _create_locale(LC_NUMERIC, "C"); + } + ~chars_to() noexcept + { + _free_locale(locale_); + } + + chars_to(const chars_to&) + { + locale_ = _create_locale(LC_NUMERIC, "C"); + } + + chars_to& operator=(const chars_to&) + { + // Don't assign locale + return *this; + } + + char get_decimal_point() const + { + return '.'; + } + + template + typename std::enable_if::value,double>::type + operator()(const CharT* s, std::size_t) const + { + CharT *end = nullptr; + double val = _strtod_l(s, &end, locale_); + if (s == end) + { + JSONCONS_THROW(json_runtime_error("Convert string to double failed")); + } + return val; + } + + template + typename std::enable_if::value,double>::type + operator()(const CharT* s, std::size_t) const + { + CharT *end = nullptr; + double val = _wcstod_l(s, &end, locale_); + if (s == end) + { + JSONCONS_THROW(json_runtime_error("Convert string to double failed")); + } + return val; + } +}; + +#elif defined(JSONCONS_HAS_STRTOLD_L) + +class chars_to +{ +private: + locale_t locale_; +public: + chars_to() + { + locale_ = newlocale(LC_ALL_MASK, "C", (locale_t) 0); + } + ~chars_to() noexcept + { + freelocale(locale_); + } + + chars_to(const chars_to&) + { + locale_ = newlocale(LC_ALL_MASK, "C", (locale_t) 0); + } + + chars_to& operator=(const chars_to&) + { + return *this; + } + + char get_decimal_point() const + { + return '.'; + } + + template + typename std::enable_if::value,double>::type + operator()(const CharT* s, std::size_t) const + { + char *end = nullptr; + double val = strtold_l(s, &end, locale_); + if (s == end) + { + JSONCONS_THROW(json_runtime_error("Convert string to double failed")); + } + return val; + } + + template + typename std::enable_if::value,double>::type + operator()(const CharT* s, std::size_t) const + { + CharT *end = nullptr; + double val = wcstold_l(s, &end, locale_); + if (s == end) + { + JSONCONS_THROW(json_runtime_error("Convert string to double failed")); + } + return val; + } +}; + +#else +class chars_to +{ +private: + std::vector buffer_; + char decimal_point_; +public: + chars_to() + : buffer_() + { + struct lconv * lc = localeconv(); + if (lc != nullptr && lc->decimal_point[0] != 0) + { + decimal_point_ = lc->decimal_point[0]; + } + else + { + decimal_point_ = '.'; + } + buffer_.reserve(100); + } + + chars_to(const chars_to&) = default; + chars_to& operator=(const chars_to&) = default; + + char get_decimal_point() const + { + return decimal_point_; + } + + template + typename std::enable_if::value,double>::type + operator()(const CharT* s, std::size_t /*length*/) const + { + CharT *end = nullptr; + double val = strtod(s, &end); + if (s == end) + { + JSONCONS_THROW(json_runtime_error("Convert string to double failed")); + } + return val; + } + + template + typename std::enable_if::value,double>::type + operator()(const CharT* s, std::size_t /*length*/) const + { + CharT *end = nullptr; + double val = wcstod(s, &end); + if (s == end) + { + JSONCONS_THROW(json_runtime_error("Convert string to double failed")); + } + return val; + } +}; +#endif + +}} + +#endif diff --git a/include/jsoncons/detail/span.hpp b/include/jsoncons/detail/span.hpp new file mode 100644 index 0000000..02c24ee --- /dev/null +++ b/include/jsoncons/detail/span.hpp @@ -0,0 +1,188 @@ +#ifndef JSONCONS_DETAIL_SPAN_HPP +#define JSONCONS_DETAIL_SPAN_HPP + +#include // std::swap +#include // std::addressof +#include // std::enable_if, std::true_type, std::false_type +#include +#include +#include +#include + +namespace jsoncons +{ +namespace detail +{ + constexpr std::size_t dynamic_extent = (std::numeric_limits::max)(); + + template< class T, std::size_t Extent = dynamic_extent> + class span; + + template + struct is_span : std::false_type{}; + + template< class T> + struct is_span> : std::true_type{}; + + template< + class T, + std::size_t Extent + > class span + { + public: + using element_type = T; + using value_type = typename std::remove_volatile::type>::type; + using size_type = std::size_t; + using difference_type = std::ptrdiff_t; + using pointer = T*; + using const_pointer = const T*; + using reference = T&; + using const_reference = const T&; + using iterator = pointer; + using const_iterator = const_pointer; + using reverse_iterator = std::reverse_iterator; + using const_reverse_iterator = std::reverse_iterator; + private: + pointer data_; + size_type size_; + public: + static constexpr std::size_t extent = Extent; + + constexpr span() noexcept + : data_(nullptr), size_(0) + { + } + constexpr span(pointer data, size_type size) + : data_(data), size_(size) + { + } + + template + constexpr span(C& c, + typename std::enable_if::value && !type_traits::is_std_array::value && type_traits::is_compatible_element::value && type_traits::has_data_and_size::value>::type* = 0) + : data_(c.data()), size_(c.size()) + { + } + + template + span(element_type (&arr)[N]) noexcept + : data_(std::addressof(arr[0])), size_(N) + { + } + + template + span(std::array& arr, + typename std::enable_if<(extent == dynamic_extent || extent == N)>::type* = 0) noexcept + : data_(arr.data()), size_(arr.size()) + { + } + + template + span(const std::array& arr, + typename std::enable_if<(extent == dynamic_extent || extent == N)>::type* = 0) noexcept + : data_(arr.data()), size_(arr.size()) + { + } + + template + constexpr span(const C& c, + typename std::enable_if::value && !type_traits::is_std_array::value && type_traits::is_compatible_element::value && type_traits::has_data_and_size::value>::type* = 0) + : data_(c.data()), size_(c.size()) + { + } + + template + constexpr span(const span& s, + typename std::enable_if<(N == dynamic_extent || N == extent) && std::is_convertible::value>::type* = 0) noexcept + : data_(s.data()), size_(s.size()) + { + } + + constexpr span(const span& other) noexcept = default; + + span& operator=( const span& other ) noexcept = default; + + constexpr pointer data() const noexcept + { + return data_; + } + + constexpr size_type size() const noexcept + { + return size_; + } + + constexpr bool empty() const noexcept + { + return size_ == 0; + } + + constexpr reference operator[](size_type index) const + { + return data_[index]; + } + + // iterator support + const_iterator begin() const noexcept + { + return data_; + } + const_iterator end() const noexcept + { + return data_ + size_; + } + const_iterator cbegin() const noexcept + { + return data_; + } + const_iterator cend() const noexcept + { + return data_ + size_; + } + const_reverse_iterator rbegin() const noexcept + { + return const_reverse_iterator(end()); + } + const_reverse_iterator rend() const noexcept + { + return const_reverse_iterator(begin()); + } + const_reverse_iterator crbegin() const noexcept + { + return const_reverse_iterator(end()); + } + const_reverse_iterator crend() const noexcept + { + return const_reverse_iterator(begin()); + } + + span + first(std::size_t count) const + { + JSONCONS_ASSERT(count <= size()); + + return span< element_type, dynamic_extent >( data(), count ); + } + + span + last(std::size_t count) const + { + JSONCONS_ASSERT(count <= size()); + + return span(data() + ( size() - count ), count); + } + + span + subspan(std::size_t offset, std::size_t count = dynamic_extent) const + { + //JSONCONS_ASSERT((offset <= size() && (count == dynamic_extent || (offset + count <= size())))); + + return span( + data() + offset, count == dynamic_extent ? size() - offset : count ); + } + }; + +} // namespace detail +} // namespace jsoncons + +#endif diff --git a/include/jsoncons/detail/string_view.hpp b/include/jsoncons/detail/string_view.hpp new file mode 100644 index 0000000..fc568a1 --- /dev/null +++ b/include/jsoncons/detail/string_view.hpp @@ -0,0 +1,537 @@ +// Copyright 2019 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_STRING_VIEW_HPP +#define JSONCONS_STRING_VIEW_HPP + +#include +#include +#include +#include +#include +#include // std::find, std::min, std::reverse +#include +#include +#include +#include +#include // std::basic_istream +#include + +namespace jsoncons { +namespace detail { + + template > + class basic_string_view + { + private: + const CharT* data_; + std::size_t length_; + public: + using value_type = CharT; + using const_reference = const CharT&; + using traits_type = Traits; + using size_type = std::size_t; + static constexpr size_type npos = size_type(-1); + using const_iterator = const CharT*; + using iterator = const CharT*; + using const_reverse_iterator = std::reverse_iterator; + + constexpr basic_string_view() noexcept + : data_(nullptr), length_(0) + { + } + constexpr basic_string_view(const CharT* data, std::size_t length) + : data_(data), length_(length) + { + } + + basic_string_view(const CharT* data) + : data_(data), length_(Traits::length(data)) + { + } + constexpr basic_string_view(const basic_string_view& other) noexcept = default; + + template + JSONCONS_CPP14_CONSTEXPR basic_string_view(const std::basic_string& s) noexcept + : data_(s.data()), length_(s.length()) + { + } + + JSONCONS_CPP14_CONSTEXPR basic_string_view& operator=( const basic_string_view& view ) noexcept + { + data_ = view.data(); + length_ = view.length(); + + return *this; + } + + template + explicit operator std::basic_string() const + { + return std::basic_string(data_,length_); + } + + // iterator support + const_iterator begin() const noexcept + { + return data_; + } + const_iterator end() const noexcept + { + return data_ + length_; + } + const_iterator cbegin() const noexcept + { + return data_; + } + const_iterator cend() const noexcept + { + return data_ + length_; + } + const_reverse_iterator rbegin() const noexcept + { + return const_reverse_iterator(end()); + } + const_reverse_iterator rend() const noexcept + { + return const_reverse_iterator(begin()); + } + const_reverse_iterator crbegin() const noexcept + { + return const_reverse_iterator(end()); + } + const_reverse_iterator crend() const noexcept + { + return const_reverse_iterator(begin()); + } + + // capacity + + std::size_t size() const + { + return length_; + } + + std::size_t length() const + { + return length_; + } + size_type max_size() const noexcept + { + return length_; + } + bool empty() const noexcept + { + return length_ == 0; + } + + // element access + + const_reference operator[](size_type pos) const + { + return data_[pos]; + } + + const_reference at(std::size_t pos) const + { + if (pos >= length_) + { + JSONCONS_THROW(std::out_of_range("pos exceeds length")); + } + return data_[pos]; + } + + const_reference front() const + { + return data_[0]; + } + const_reference back() const + { + return data_[length_-1]; + } + + const CharT* data() const + { + return data_; + } + + // string operations + + basic_string_view substr(size_type pos, size_type n=npos) const + { + if (pos > length_) + { + JSONCONS_THROW(std::out_of_range("pos exceeds size")); + } + if (n == npos || pos + n > length_) + { + n = length_ - pos; + } + return basic_string_view(data_ + pos, n); + } + + int compare(const basic_string_view& s) const noexcept + { + const int rc = Traits::compare(data_, s.data_, (std::min)(length_, s.length_)); + return rc != 0 ? rc : (length_ == s.length_ ? 0 : length_ < s.length_ ? -1 : 1); + } + + int compare(const CharT* data) const noexcept + { + const size_t length = Traits::length(data); + const int rc = Traits::compare(data_, data, (std::min)(length_, length)); + return rc != 0 ? rc : (length_ == length? 0 : length_ < length? -1 : 1); + } + + template + int compare(const std::basic_string& s) const noexcept + { + const int rc = Traits::compare(data_, s.data(), (std::min)(length_, s.length())); + return rc != 0 ? rc : (length_ == s.length() ? 0 : length_ < s.length() ? -1 : 1); + } + + size_type find(basic_string_view s, size_type pos = 0) const noexcept + { + if (pos > length_) + { + return npos; + } + if (s.length_ == 0) + { + return pos; + } + const_iterator it = std::search(cbegin() + pos, cend(), + s.cbegin(), s.cend(), Traits::eq); + return it == cend() ? npos : std::distance(cbegin(), it); + } + size_type find(CharT ch, size_type pos = 0) const noexcept + { + return find(basic_string_view(&ch, 1), pos); + } + size_type find(const CharT* s, size_type pos, size_type n) const noexcept + { + return find(basic_string_view(s, n), pos); + } + size_type find(const CharT* s, size_type pos = 0) const noexcept + { + return find(basic_string_view(s), pos); + } + + size_type rfind(basic_string_view s, size_type pos = npos) const noexcept + { + if (length_ < s.length_) + { + return npos; + } + if (pos > length_ - s.length_) + { + pos = length_ - s.length_; + } + if (s.length_ == 0) + { + return pos; + } + for (const CharT* p = data_ + pos; true; --p) + { + if (Traits::compare(p, s.data_, s.length_) == 0) + { + return p - data_; + } + if (p == data_) + { + return npos; + } + }; + } + size_type rfind(CharT ch, size_type pos = npos) const noexcept + { + return rfind(basic_string_view(&ch, 1), pos); + } + size_type rfind(const CharT* s, size_type pos, size_type n) const noexcept + { + return rfind(basic_string_view(s, n), pos); + } + size_type rfind(const CharT* s, size_type pos = npos) const noexcept + { + return rfind(basic_string_view(s), pos); + } + + size_type find_first_of(basic_string_view s, size_type pos = 0) const noexcept + { + if (pos >= length_ || s.length_ == 0) + { + return npos; + } + const_iterator it = std::find_first_of + (cbegin() + pos, cend(), s.cbegin(), s.cend(), Traits::eq); + return it == cend() ? npos : std::distance (cbegin(), it); + } + size_type find_first_of(CharT ch, size_type pos = 0) const noexcept + { + return find_first_of(basic_string_view(&ch, 1), pos); + } + size_type find_first_of(const CharT* s, size_type pos, size_type n) const noexcept + { + return find_first_of(basic_string_view(s, n), pos); + } + size_type find_first_of(const CharT* s, size_type pos = 0) const noexcept + { + return find_first_of(basic_string_view(s), pos); + } + + size_type find_last_of(basic_string_view s, size_type pos = npos) const noexcept + { + if (s.length_ == 0) + { + return npos; + } + if (pos >= length_) + { + pos = 0; + } + else + { + pos = length_ - (pos+1); + } + const_reverse_iterator it = std::find_first_of + (crbegin() + pos, crend(), s.cbegin(), s.cend(), Traits::eq); + return it == crend() ? npos : (length_ - 1 - std::distance(crbegin(), it)); + } + size_type find_last_of(CharT ch, size_type pos = npos) const noexcept + { + return find_last_of(basic_string_view(&ch, 1), pos); + } + size_type find_last_of(const CharT* s, size_type pos, size_type n) const noexcept + { + return find_last_of(basic_string_view(s, n), pos); + } + size_type find_last_of(const CharT* s, size_type pos = npos) const noexcept + { + return find_last_of(basic_string_view(s), pos); + } + + size_type find_first_not_of(basic_string_view s, size_type pos = 0) const noexcept + { + if (pos >= length_) + return npos; + if (s.length_ == 0) + return pos; + + const_iterator it = cend(); + for (auto p = cbegin()+pos; p != cend(); ++p) + { + if (Traits::find(s.data_, s.length_, *p) == 0) + { + it = p; + break; + } + } + return it == cend() ? npos : std::distance (cbegin(), it); + } + size_type find_first_not_of(CharT ch, size_type pos = 0) const noexcept + { + return find_first_not_of(basic_string_view(&ch, 1), pos); + } + size_type find_first_not_of(const CharT* s, size_type pos, size_type n) const noexcept + { + return find_first_not_of(basic_string_view(s, n), pos); + } + size_type find_first_not_of(const CharT* s, size_type pos = 0) const noexcept + { + return find_first_not_of(basic_string_view(s), pos); + } + + size_type find_last_not_of(basic_string_view s, size_type pos = npos) const noexcept + { + if (pos >= length_) + { + pos = length_ - 1; + } + if (s.length_ == 0) + { + return pos; + } + pos = length_ - (pos+1); + + const_iterator it = crend(); + for (auto p = crbegin()+pos; p != crend(); ++p) + { + if (Traits::find(s.data_, s.length_, *p) == 0) + { + it = p; + break; + } + } + return it == crend() ? npos : (length_ - 1 - std::distance(crbegin(), it)); + } + size_type find_last_not_of(CharT ch, size_type pos = npos) const noexcept + { + return find_last_not_of(basic_string_view(&ch, 1), pos); + } + size_type find_last_not_of(const CharT* s, size_type pos, size_type n) const noexcept + { + return find_last_not_of(basic_string_view(s, n), pos); + } + size_type find_last_not_of(const CharT* s, size_type pos = npos) const noexcept + { + return find_last_not_of(basic_string_view(s), pos); + } + + friend std::basic_ostream& operator<<(std::basic_ostream& os, const basic_string_view& sv) + { + os.write(sv.data_,sv.length_); + return os; + } + }; + + // == + template + bool operator==(const basic_string_view& lhs, + const basic_string_view& rhs) noexcept + { + return lhs.compare(rhs) == 0; + } + template + bool operator==(const basic_string_view& lhs, + const std::basic_string& rhs) noexcept + { + return lhs.compare(rhs) == 0; + } + template + bool operator==(const std::basic_string& lhs, + const basic_string_view& rhs) noexcept + { + return rhs.compare(lhs) == 0; + } + template + bool operator==(const basic_string_view& lhs, + const CharT* rhs) noexcept + { + return lhs.compare(rhs) == 0; + } + template + bool operator==(const CharT* lhs, + const basic_string_view& rhs) noexcept + { + return rhs.compare(lhs) == 0; + } + + // != + template + bool operator!=(const basic_string_view& lhs, + const basic_string_view& rhs) noexcept + { + return lhs.compare(rhs) != 0; + } + template + bool operator!=(const basic_string_view& lhs, + const std::basic_string& rhs) noexcept + { + return lhs.compare(rhs) != 0; + } + template + bool operator!=(const std::basic_string& lhs, + const basic_string_view& rhs) noexcept + { + return rhs.compare(lhs) != 0; + } + template + bool operator!=(const basic_string_view& lhs, + const CharT* rhs) noexcept + { + return lhs.compare(rhs) != 0; + } + template + bool operator!=(const CharT* lhs, + const basic_string_view& rhs) noexcept + { + return rhs.compare(lhs) != 0; + } + + // <= + template + bool operator<=(const basic_string_view& lhs, + const basic_string_view& rhs) noexcept + { + return lhs.compare(rhs) <= 0; + } + template + bool operator<=(const basic_string_view& lhs, + const std::basic_string& rhs) noexcept + { + return lhs.compare(rhs) <= 0; + } + template + bool operator<=(const std::basic_string& lhs, + const basic_string_view& rhs) noexcept + { + return rhs.compare(lhs) >= 0; + } + + // < + template + bool operator<(const basic_string_view& lhs, + const basic_string_view& rhs) noexcept + { + return lhs.compare(rhs) < 0; + } + template + bool operator<(const basic_string_view& lhs, + const std::basic_string& rhs) noexcept + { + return lhs.compare(rhs) < 0; + } + template + bool operator<(const std::basic_string& lhs, + const basic_string_view& rhs) noexcept + { + return rhs.compare(lhs) > 0; + } + + // >= + template + bool operator>=(const basic_string_view& lhs, + const basic_string_view& rhs) noexcept + { + return lhs.compare(rhs) >= 0; + } + template + bool operator>=(const basic_string_view& lhs, + const std::basic_string& rhs) noexcept + { + return lhs.compare(rhs) >= 0; + } + template + bool operator>=(const std::basic_string& lhs, + const basic_string_view& rhs) noexcept + { + return rhs.compare(lhs) <= 0; + } + + // > + template + bool operator>(const basic_string_view& lhs, + const basic_string_view& rhs) noexcept + { + return lhs.compare(rhs) > 0; + } + template + bool operator>(const basic_string_view& lhs, + const std::basic_string& rhs) noexcept + { + return lhs.compare(rhs) > 0; + } + template + bool operator>(const std::basic_string& lhs, + const basic_string_view& rhs) noexcept + { + return rhs.compare(lhs) < 0; + } + +} // namespace detail +} // namespace jsoncons + +#endif diff --git a/include/jsoncons/detail/string_wrapper.hpp b/include/jsoncons/detail/string_wrapper.hpp new file mode 100644 index 0000000..88634b0 --- /dev/null +++ b/include/jsoncons/detail/string_wrapper.hpp @@ -0,0 +1,370 @@ +// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_DETAIL_STRING_WRAPPER_HPP +#define JSONCONS_DETAIL_STRING_WRAPPER_HPP + +#include +#include +#include +#include +#include // std::memcpy +#include // std::allocator +#include + +namespace jsoncons { +namespace detail { + + // From boost 1_71 + template + T launder_cast(U* u) + { + #if defined(__cpp_lib_launder) && __cpp_lib_launder >= 201606 + return std::launder(reinterpret_cast(u)); + #elif defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) > 800 + return __builtin_launder(reinterpret_cast(u)); + #else + return reinterpret_cast(u); + #endif + } + + // string_wrapper + + template + class string_wrapper + { + public: + using char_type = CharT; + private: + struct str_base_t + { + Allocator alloc_; + + Allocator& get_allocator() + { + return alloc_; + } + + const Allocator& get_allocator() const + { + return alloc_; + } + + str_base_t(const Allocator& alloc) + : alloc_(alloc) + { + } + + ~str_base_t() noexcept = default; + }; + + struct str_t : public str_base_t + { + typedef typename std::allocator_traits::template rebind_alloc allocator_type; + using allocator_traits_type = std::allocator_traits; + using pointer = typename allocator_traits_type::pointer; + + pointer p_; + std::size_t length_; + + ~str_t() noexcept = default; + + const char_type* c_str() const { return type_traits::to_plain_pointer(p_); } + const char_type* data() const { return type_traits::to_plain_pointer(p_); } + std::size_t length() const { return length_; } + + str_t(const Allocator& alloc) + : str_base_t(alloc), p_(nullptr), length_(0) + { + + } + + str_t(const str_t&) = delete; + str_t& operator=(const str_t&) = delete; + + }; + + typedef typename std::allocator_traits::template rebind_alloc byte_allocator_type; + using byte_pointer = typename std::allocator_traits::pointer; + + typedef typename std::allocator_traits::template rebind_alloc string_allocator_type; + using string_pointer = typename std::allocator_traits::pointer; + + struct storage_t + { + str_t data; + char_type c[1]; + }; + typedef typename std::aligned_storage::type json_storage_kind; + + string_pointer ptr_; + public: + string_wrapper() = default; + + string_wrapper(string_pointer ptr) + : ptr_(ptr) + { + } + + string_wrapper(const char_type* data, std::size_t length, const Allocator& a) + { + ptr_ = create(data,length,a); + } + + string_wrapper(const string_wrapper& val) + { + ptr_ = create(val.data(),val.length(),val.get_allocator()); + } + + string_wrapper(const string_wrapper& val, const Allocator& a) + { + ptr_ = create(val.data(),val.length(),a); + } + + ~string_wrapper() noexcept + { + if (ptr_ != nullptr) + { + destroy(ptr_); + } + } + + void swap(string_wrapper& other) noexcept + { + std::swap(ptr_,other.ptr_); + } + + const char_type* data() const + { + return ptr_->data(); + } + + const char_type* c_str() const + { + return ptr_->c_str(); + } + + std::size_t length() const + { + return ptr_->length(); + } + + Allocator get_allocator() const + { + return ptr_->get_allocator(); + } + private: + static size_t aligned_size(std::size_t n) + { + return sizeof(json_storage_kind) + n; + } + + static string_pointer create(const char_type* s, std::size_t length, const Allocator& alloc) + { + std::size_t mem_size = aligned_size(length*sizeof(char_type)); + + byte_allocator_type byte_alloc(alloc); + byte_pointer ptr = byte_alloc.allocate(mem_size); + + char* storage = type_traits::to_plain_pointer(ptr); + str_t* ps = new(storage)str_t(byte_alloc); + + auto psa = launder_cast(storage); + + CharT* p = new(&psa->c)char_type[length + 1]; + std::memcpy(p, s, length*sizeof(char_type)); + p[length] = 0; + ps->p_ = std::pointer_traits::pointer_to(*p); + ps->length_ = length; + return std::pointer_traits::pointer_to(*ps); + } + + static void destroy(string_pointer ptr) + { + str_t* rawp = type_traits::to_plain_pointer(ptr); + + char* p = launder_cast(rawp); + + std::size_t mem_size = aligned_size(ptr->length_*sizeof(char_type)); + byte_allocator_type byte_alloc(ptr->get_allocator()); + byte_alloc.deallocate(p,mem_size); + } + }; + + // tagged_string_wrapper + + template + class tagged_string_wrapper + { + public: + using char_type = CharT; + private: + struct str_base_t + { + Allocator alloc_; + + Allocator& get_allocator() + { + return alloc_; + } + + const Allocator& get_allocator() const + { + return alloc_; + } + + str_base_t(const Allocator& alloc) + : alloc_(alloc) + { + } + + ~str_base_t() noexcept = default; + }; + + struct str_t : public str_base_t + { + typedef typename std::allocator_traits::template rebind_alloc allocator_type; + using allocator_traits_type = std::allocator_traits; + using pointer = typename allocator_traits_type::pointer; + + pointer p_; + std::size_t length_; + uint64_t tag_; + + ~str_t() noexcept = default; + + const char_type* c_str() const { return type_traits::to_plain_pointer(p_); } + const char_type* data() const { return type_traits::to_plain_pointer(p_); } + std::size_t length() const { return length_; } + uint64_t tag() const { return tag_; } + + str_t(uint64_t tag, const Allocator& alloc) + : str_base_t(alloc), p_(nullptr), length_(0), tag_(tag) + { + + } + + str_t(const str_t&) = delete; + str_t& operator=(const str_t&) = delete; + + }; + + typedef typename std::allocator_traits::template rebind_alloc byte_allocator_type; + using byte_pointer = typename std::allocator_traits::pointer; + + typedef typename std::allocator_traits::template rebind_alloc string_allocator_type; + using string_pointer = typename std::allocator_traits::pointer; + + struct storage_t + { + str_t data; + char_type c[1]; + }; + typedef typename std::aligned_storage::type json_storage_kind; + + string_pointer ptr_; + public: + tagged_string_wrapper() = default; + + tagged_string_wrapper(string_pointer ptr) + : ptr_(ptr) + { + } + + tagged_string_wrapper(const char_type* data, std::size_t length, uint64_t tag, const Allocator& alloc) + { + ptr_ = create(data, length, tag, alloc); + } + + tagged_string_wrapper(const tagged_string_wrapper& val) + { + ptr_ = create(val.data(), val.length(), val.tag(), val.get_allocator()); + } + + tagged_string_wrapper(const tagged_string_wrapper& val, const Allocator& alloc) + { + ptr_ = create(val.data(), val.length(), val.tag(), alloc); + } + + ~tagged_string_wrapper() noexcept + { + if (ptr_ != nullptr) + { + destroy(ptr_); + } + } + + void swap(tagged_string_wrapper& other) noexcept + { + std::swap(ptr_,other.ptr_); + } + + const char_type* data() const + { + return ptr_->data(); + } + + const char_type* c_str() const + { + return ptr_->c_str(); + } + + std::size_t length() const + { + return ptr_->length(); + } + + uint64_t tag() const + { + return ptr_->tag(); + } + + Allocator get_allocator() const + { + return ptr_->get_allocator(); + } + private: + static size_t aligned_size(std::size_t n) + { + return sizeof(json_storage_kind) + n; + } + + static string_pointer create(const char_type* s, std::size_t length, uint64_t tag, const Allocator& alloc) + { + std::size_t mem_size = aligned_size(length*sizeof(char_type)); + + byte_allocator_type byte_alloc(alloc); + byte_pointer ptr = byte_alloc.allocate(mem_size); + + char* storage = type_traits::to_plain_pointer(ptr); + str_t* ps = new(storage)str_t(tag, byte_alloc); + + auto psa = launder_cast(storage); + + CharT* p = new(&psa->c)char_type[length + 1]; + std::memcpy(p, s, length*sizeof(char_type)); + p[length] = 0; + ps->p_ = std::pointer_traits::pointer_to(*p); + ps->length_ = length; + return std::pointer_traits::pointer_to(*ps); + } + + static void destroy(string_pointer ptr) + { + str_t* rawp = type_traits::to_plain_pointer(ptr); + + char* p = launder_cast(rawp); + + std::size_t mem_size = aligned_size(ptr->length_*sizeof(char_type)); + byte_allocator_type byte_alloc(ptr->get_allocator()); + byte_alloc.deallocate(p,mem_size); + } + }; + +} // namespace detail +} // namespace jsoncons + +#endif diff --git a/include/jsoncons/detail/write_number.hpp b/include/jsoncons/detail/write_number.hpp new file mode 100644 index 0000000..2613467 --- /dev/null +++ b/include/jsoncons/detail/write_number.hpp @@ -0,0 +1,567 @@ +// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_DETAIL_WRITE_NUMBER_HPP +#define JSONCONS_DETAIL_WRITE_NUMBER_HPP + +#include +#include +#include +#include +#include // std::numeric_limits +#include +#include // snprintf +#include +#include +#include +#include +#include + +namespace jsoncons { +namespace detail { + + inline + char to_hex_character(uint8_t c) + { + return (char)((c < 10) ? ('0' + c) : ('A' - 10 + c)); + } + + // from_integer + + template + typename std::enable_if::value,std::size_t>::type + from_integer(Integer value, Result& result) + { + using char_type = typename Result::value_type; + + char_type buf[255]; + char_type *p = buf; + const char_type* last = buf+255; + + bool is_negative = value < 0; + + if (value < 0) + { + do + { + *p++ = static_cast(48 - (value % 10)); + } + while ((value /= 10) && (p < last)); + } + else + { + + do + { + *p++ = static_cast(48 + value % 10); + } + while ((value /= 10) && (p < last)); + } + JSONCONS_ASSERT(p != last); + + std::size_t count = (p - buf); + if (is_negative) + { + result.push_back('-'); + ++count; + } + while (--p >= buf) + { + result.push_back(*p); + } + + return count; + } + + // integer_to_string_hex + + template + typename std::enable_if::value,std::size_t>::type + integer_to_string_hex(Integer value, Result& result) + { + using char_type = typename Result::value_type; + + char_type buf[255]; + char_type *p = buf; + const char_type* last = buf+255; + + bool is_negative = value < 0; + + if (value < 0) + { + do + { + *p++ = to_hex_character(0-(value % 16)); + } + while ((value /= 16) && (p < last)); + } + else + { + + do + { + *p++ = to_hex_character(value % 16); + } + while ((value /= 16) && (p < last)); + } + JSONCONS_ASSERT(p != last); + + std::size_t count = (p - buf); + if (is_negative) + { + result.push_back('-'); + ++count; + } + while (--p >= buf) + { + result.push_back(*p); + } + + return count; + } + + // write_double + + // fast exponent + template + void fill_exponent(int K, Result& result) + { + if (K < 0) + { + result.push_back('-'); + K = -K; + } + else + { + result.push_back('+'); // compatibility with sprintf + } + + if (K < 10) + { + result.push_back('0'); // compatibility with sprintf + result.push_back((char)('0' + K)); + } + else if (K < 100) + { + result.push_back((char)('0' + K / 10)); K %= 10; + result.push_back((char)('0' + K)); + } + else if (K < 1000) + { + result.push_back((char)('0' + K / 100)); K %= 100; + result.push_back((char)('0' + K / 10)); K %= 10; + result.push_back((char)('0' + K)); + } + else + { + jsoncons::detail::from_integer(K, result); + } + } + + template + void prettify_string(const char *buffer, std::size_t length, int k, int min_exp, int max_exp, Result& result) + { + int nb_digits = (int)length; + int offset; + /* v = buffer * 10^k + kk is such that 10^(kk-1) <= v < 10^kk + this way kk gives the position of the decimal point. + */ + int kk = nb_digits + k; + + if (nb_digits <= kk && kk <= max_exp) + { + /* the first digits are already in. Add some 0s and call it a day. */ + /* the max_exp is a personal choice. Only 16 digits could possibly be relevant. + * Basically we want to print 12340000000 rather than 1234.0e7 or 1.234e10 */ + for (int i = 0; i < nb_digits; ++i) + { + result.push_back(buffer[i]); + } + for (int i = nb_digits; i < kk; ++i) + { + result.push_back('0'); + } + result.push_back('.'); + result.push_back('0'); + } + else if (0 < kk && kk <= max_exp) + { + /* comma number. Just insert a '.' at the correct location. */ + for (int i = 0; i < kk; ++i) + { + result.push_back(buffer[i]); + } + result.push_back('.'); + for (int i = kk; i < nb_digits; ++i) + { + result.push_back(buffer[i]); + } + } + else if (min_exp < kk && kk <= 0) + { + offset = 2 - kk; + + result.push_back('0'); + result.push_back('.'); + for (int i = 2; i < offset; ++i) + result.push_back('0'); + for (int i = 0; i < nb_digits; ++i) + { + result.push_back(buffer[i]); + } + } + else if (nb_digits == 1) + { + result.push_back(buffer[0]); + result.push_back('e'); + fill_exponent(kk - 1, result); + } + else + { + result.push_back(buffer[0]); + result.push_back('.'); + for (int i = 1; i < nb_digits; ++i) + { + result.push_back(buffer[i]); + } + result.push_back('e'); + fill_exponent(kk - 1, result); + } + } + + template + void dump_buffer(const char *buffer, std::size_t length, char decimal_point, Result& result) + { + const char *sbeg = buffer; + const char *send = sbeg + length; + + if (sbeg != send) + { + bool needs_dot = true; + for (const char* q = sbeg; q < send; ++q) + { + switch (*q) + { + case '-': + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + case '+': + result.push_back(*q); + break; + case 'e': + case 'E': + result.push_back('e'); + needs_dot = false; + break; + default: + if (*q == decimal_point) + { + needs_dot = false; + result.push_back('.'); + } + break; + } + } + if (needs_dot) + { + result.push_back('.'); + result.push_back('0'); + needs_dot = true; + } + } + } + + template + bool dtoa_scientific(double val, char decimal_point, Result& result) + { + if (val == 0) + { + result.push_back('0'); + result.push_back('.'); + result.push_back('0'); + return true; + } + + jsoncons::detail::chars_to to_double_; + + char buffer[100]; + int precision = std::numeric_limits::digits10; + int length = snprintf(buffer, sizeof(buffer), "%1.*e", precision, val); + if (length < 0) + { + return false; + } + if (to_double_(buffer, sizeof(buffer)) != val) + { + const int precision2 = std::numeric_limits::max_digits10; + length = snprintf(buffer, sizeof(buffer), "%1.*e", precision2, val); + if (length < 0) + { + return false; + } + } + dump_buffer(buffer, static_cast(length), decimal_point, result); + return true; + } + + template + bool dtoa_general(double val, char decimal_point, Result& result, std::false_type) + { + if (val == 0) + { + result.push_back('0'); + result.push_back('.'); + result.push_back('0'); + return true; + } + + jsoncons::detail::chars_to to_double_; + + char buffer[100]; + int precision = std::numeric_limits::digits10; + int length = snprintf(buffer, sizeof(buffer), "%1.*g", precision, val); + if (length < 0) + { + return false; + } + if (to_double_(buffer, sizeof(buffer)) != val) + { + const int precision2 = std::numeric_limits::max_digits10; + length = snprintf(buffer, sizeof(buffer), "%1.*g", precision2, val); + if (length < 0) + { + return false; + } + } + dump_buffer(buffer, length, decimal_point, result); + return true; + } + + template + bool dtoa_general(double v, char decimal_point, Result& result, std::true_type) + { + if (v == 0) + { + result.push_back('0'); + result.push_back('.'); + result.push_back('0'); + return true; + } + + int length = 0; + int k; + + char buffer[100]; + + double u = std::signbit(v) ? -v : v; + if (jsoncons::detail::grisu3(u, buffer, &length, &k)) + { + if (std::signbit(v)) + { + result.push_back('-'); + } + // min exp: -4 is consistent with sprintf + // max exp: std::numeric_limits::max_digits10 + jsoncons::detail::prettify_string(buffer, length, k, -4, std::numeric_limits::max_digits10, result); + return true; + } + else + { + return dtoa_general(v, decimal_point, result, std::false_type()); + } + } + + template + bool dtoa_fixed(double val, char decimal_point, Result& result, std::false_type) + { + if (val == 0) + { + result.push_back('0'); + result.push_back('.'); + result.push_back('0'); + return true; + } + + jsoncons::detail::chars_to to_double_; + + char buffer[100]; + int precision = std::numeric_limits::digits10; + int length = snprintf(buffer, sizeof(buffer), "%1.*f", precision, val); + if (length < 0) + { + return false; + } + if (to_double_(buffer, sizeof(buffer)) != val) + { + const int precision2 = std::numeric_limits::max_digits10; + length = snprintf(buffer, sizeof(buffer), "%1.*f", precision2, val); + if (length < 0) + { + return false; + } + } + dump_buffer(buffer, length, decimal_point, result); + return true; + } + + template + bool dtoa_fixed(double v, char decimal_point, Result& result, std::true_type) + { + if (v == 0) + { + result.push_back('0'); + result.push_back('.'); + result.push_back('0'); + return true; + } + + int length = 0; + int k; + + char buffer[100]; + + double u = std::signbit(v) ? -v : v; + if (jsoncons::detail::grisu3(u, buffer, &length, &k)) + { + if (std::signbit(v)) + { + result.push_back('-'); + } + jsoncons::detail::prettify_string(buffer, length, k, std::numeric_limits::lowest(), (std::numeric_limits::max)(), result); + return true; + } + else + { + return dtoa_fixed(v, decimal_point, result, std::false_type()); + } + } + + template + bool dtoa_fixed(double v, char decimal_point, Result& result) + { + return dtoa_fixed(v, decimal_point, result, std::integral_constant::is_iec559>()); + } + + template + bool dtoa_general(double v, char decimal_point, Result& result) + { + return dtoa_general(v, decimal_point, result, std::integral_constant::is_iec559>()); + } + + class write_double + { + private: + chars_to to_double_; + float_chars_format float_format_; + int precision_; + char decimal_point_; + public: + write_double(float_chars_format float_format, int precision) + : float_format_(float_format), precision_(precision), decimal_point_('.') + { + #if !defined(JSONCONS_NO_LOCALECONV) + struct lconv *lc = localeconv(); + if (lc != nullptr && lc->decimal_point[0] != 0) + { + decimal_point_ = lc->decimal_point[0]; + } + #endif + } + write_double(const write_double&) = default; + + write_double& operator=(const write_double&) = default; + + template + std::size_t operator()(double val, Result& result) + { + std::size_t count = 0; + + char number_buffer[200]; + int length = 0; + + switch (float_format_) + { + case float_chars_format::fixed: + { + if (precision_ > 0) + { + length = snprintf(number_buffer, sizeof(number_buffer), "%1.*f", precision_, val); + if (length < 0) + { + JSONCONS_THROW(json_runtime_error("write_double failed.")); + } + dump_buffer(number_buffer, length, decimal_point_, result); + } + else + { + if (!dtoa_fixed(val, decimal_point_, result)) + { + JSONCONS_THROW(json_runtime_error("write_double failed.")); + } + } + } + break; + case float_chars_format::scientific: + { + if (precision_ > 0) + { + length = snprintf(number_buffer, sizeof(number_buffer), "%1.*e", precision_, val); + if (length < 0) + { + JSONCONS_THROW(json_runtime_error("write_double failed.")); + } + dump_buffer(number_buffer, length, decimal_point_, result); + } + else + { + if (!dtoa_scientific(val, decimal_point_, result)) + { + JSONCONS_THROW(json_runtime_error("write_double failed.")); + } + } + } + break; + case float_chars_format::general: + { + if (precision_ > 0) + { + length = snprintf(number_buffer, sizeof(number_buffer), "%1.*g", precision_, val); + if (length < 0) + { + JSONCONS_THROW(json_runtime_error("write_double failed.")); + } + dump_buffer(number_buffer, length, decimal_point_, result); + } + else + { + if (!dtoa_general(val, decimal_point_, result)) + { + JSONCONS_THROW(json_runtime_error("write_double failed.")); + } + } + break; + } + default: + JSONCONS_THROW(json_runtime_error("write_double failed.")); + break; + } + return count; + } + }; + +} // namespace detail +} // namespace jsoncons + +#endif diff --git a/include/jsoncons/encode_json.hpp b/include/jsoncons/encode_json.hpp new file mode 100644 index 0000000..706dc44 --- /dev/null +++ b/include/jsoncons/encode_json.hpp @@ -0,0 +1,315 @@ +// Copyright 2017 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_ENCODE_JSON_HPP +#define JSONCONS_ENCODE_JSON_HPP + +#include +#include +#include +#include +#include // std::basic_istream +#include +#include + +namespace jsoncons { + + // to string + + template + typename std::enable_if::value && + type_traits::is_back_insertable_char_container::value>::type + encode_json(const T& val, + Container& s, + const basic_json_encode_options& options = + basic_json_encode_options()) + { + using char_type = typename Container::value_type; + + basic_compact_json_encoder> encoder(s, options); + val.dump(encoder); + } + + template + typename std::enable_if::value && + type_traits::is_back_insertable_char_container::value>::type + encode_json(const T& val, + Container& s, + const basic_json_encode_options& options = basic_json_encode_options()) + { + using char_type = typename Container::value_type; + + basic_compact_json_encoder> encoder(s, options); + encode_json(val, encoder); + } + + // to stream + + template + typename std::enable_if::value>::type + encode_json(const T& val, + std::basic_ostream& os, + const basic_json_encode_options& options = basic_json_encode_options()) + { + basic_compact_json_encoder encoder(os, options); + val.dump(encoder); + } + + template + typename std::enable_if::value>::type + encode_json(const T& val, + std::basic_ostream& os, + const basic_json_encode_options& options = basic_json_encode_options()) + { + basic_compact_json_encoder encoder(os, options); + encode_json(val, encoder); + } + + // encode_json_pretty + + template + typename std::enable_if::value && + type_traits::is_back_insertable_char_container::value>::type + encode_json_pretty(const T& val, + Container& s, + const basic_json_encode_options& options = basic_json_encode_options()) + { + using char_type = typename Container::value_type; + + basic_json_encoder> encoder(s, options); + val.dump(encoder); + } + + template + typename std::enable_if::value && + type_traits::is_back_insertable_char_container::value>::type + encode_json_pretty(const T& val, + Container& s, + const basic_json_encode_options& options = basic_json_encode_options()) + { + using char_type = typename Container::value_type; + basic_json_encoder> encoder(s, options); + encode_json(val, encoder); + } + + template + typename std::enable_if::value>::type + encode_json_pretty(const T& val, + std::basic_ostream& os, + const basic_json_encode_options& options = basic_json_encode_options()) + { + basic_json_encoder encoder(os, options); + val.dump(encoder); + } + + template + typename std::enable_if::value>::type + encode_json_pretty(const T& val, + std::basic_ostream& os, + const basic_json_encode_options& options = basic_json_encode_options()) + { + basic_json_encoder encoder(os, options); + encode_json(val, encoder); + } + + template + void encode_json(const T& val, basic_json_visitor& encoder) + { + std::error_code ec; + encode_traits::encode(val, encoder, basic_json(), ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec)); + } + encoder.flush(); + } + + template + void encode_json(temp_allocator_arg_t, const TempAllocator& temp_alloc, + const T& val, + Container& s, + indenting line_indent = indenting::no_indent) + { + encode_json(temp_allocator_arg, temp_alloc, val, s, basic_json_encode_options(), line_indent); + } + +// legacy + + template + void encode_json(const T& val, Container& s, indenting line_indent) + { + if (line_indent == indenting::indent) + { + encode_json_pretty(val,s); + } + else + { + encode_json(val,s); + } + } + + template + void encode_json(const T& val, + Container& s, + const basic_json_encode_options& options, + indenting line_indent) + { + if (line_indent == indenting::indent) + { + encode_json_pretty(val,s,options); + } + else + { + encode_json(val,s,options); + } + } + + template + void encode_json(const T& val, + std::basic_ostream& os, + indenting line_indent) + { + if (line_indent == indenting::indent) + { + encode_json_pretty(val, os); + } + else + { + encode_json(val, os); + } + } + + template + void encode_json(const T& val, + std::basic_ostream& os, + const basic_json_encode_options& options, + indenting line_indent) + { + if (line_indent == indenting::indent) + { + encode_json_pretty(val, os, options); + } + else + { + encode_json(val, os, options); + } + } + +//end legacy + + template + typename std::enable_if::value && + type_traits::is_back_insertable_char_container::value>::type + encode_json(temp_allocator_arg_t, const TempAllocator& temp_alloc, + const T& val, + Container& s, + const basic_json_encode_options& options, + indenting line_indent = indenting::no_indent) + { + using char_type = typename Container::value_type; + if (line_indent == indenting::indent) + { + basic_json_encoder,TempAllocator> encoder(s, options, temp_alloc); + val.dump(encoder); + } + else + { + basic_compact_json_encoder,TempAllocator> encoder(s, options, temp_alloc); + val.dump(encoder); + } + } + + template + typename std::enable_if::value && + type_traits::is_back_insertable_char_container::value>::type + encode_json(temp_allocator_arg_t, const TempAllocator& temp_alloc, + const T& val, + Container& s, + const basic_json_encode_options& options, + indenting line_indent) + { + using char_type = typename Container::value_type; + if (line_indent == indenting::indent) + { + basic_json_encoder,TempAllocator> encoder(s, options, temp_alloc); + encode_json(temp_allocator_arg, temp_alloc, val, encoder); + } + else + { + basic_compact_json_encoder,TempAllocator> encoder(s, options, temp_alloc); + encode_json(temp_allocator_arg, temp_alloc, val, encoder); + } + } + + template + void encode_json(temp_allocator_arg_t, const TempAllocator& temp_alloc, + const T& val, + std::basic_ostream& os, + indenting line_indent = indenting::no_indent) + { + encode_json(temp_allocator_arg, temp_alloc, val, os, basic_json_encode_options(), line_indent); + } + + template + typename std::enable_if::value>::type + encode_json(temp_allocator_arg_t, const TempAllocator& temp_alloc, + const T& val, + std::basic_ostream& os, + const basic_json_encode_options& options, + indenting line_indent = indenting::no_indent) + { + if (line_indent == indenting::indent) + { + basic_json_encoder,TempAllocator> encoder(os, options, temp_alloc); + val.dump(encoder); + } + else + { + basic_compact_json_encoder,TempAllocator> encoder(os, options, temp_alloc); + val.dump(encoder); + } + } + + template + typename std::enable_if::value>::type + encode_json(temp_allocator_arg_t, const TempAllocator& temp_alloc, + const T& val, + std::basic_ostream& os, + const basic_json_encode_options& options, + indenting line_indent) + { + if (line_indent == indenting::indent) + { + basic_json_encoder encoder(os, options); + encode_json(temp_allocator_arg, temp_alloc, val, encoder); + } + else + { + basic_compact_json_encoder encoder(os, options); + encode_json(temp_allocator_arg, temp_alloc, val, encoder); + } + } + + template + typename std::enable_if::value>::type + encode_json(temp_allocator_arg_t, const TempAllocator& temp_alloc, + const T& val, + basic_json_visitor& encoder) + { + std::error_code ec; + basic_json proto(temp_alloc); + encode_traits::encode(val, encoder, proto, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec)); + } + encoder.flush(); + } + +} // jsoncons + +#endif + diff --git a/include/jsoncons/encode_traits.hpp b/include/jsoncons/encode_traits.hpp new file mode 100644 index 0000000..ae981af --- /dev/null +++ b/include/jsoncons/encode_traits.hpp @@ -0,0 +1,378 @@ +// Copyright 2017 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_ENCODE_TRAITS_HPP +#define JSONCONS_ENCODE_TRAITS_HPP + +#include +#include +#include +#include +#include // std::enable_if, std::true_type, std::false_type +#include +#include +#include +#include +#include +#include + +namespace jsoncons { + + // encode_traits + + template + struct encode_traits + { + template + static void encode(const T& val, + basic_json_visitor& encoder, + const Json& proto, + std::error_code& ec) + { + encode(std::integral_constant::value>(), + val, encoder, proto, ec); + } + private: + template + static void encode(std::true_type, + const T& val, + basic_json_visitor& encoder, + const Json& /*proto*/, + std::error_code& ec) + { + auto j = json_type_traits::to_json(val); + j.dump(encoder, ec); + } + template + static void encode(std::false_type, + const T& val, + basic_json_visitor& encoder, + const Json& proto, + std::error_code& ec) + { + auto j = json_type_traits::to_json(val, proto.get_allocator()); + j.dump(encoder, ec); + } + }; + + // specializations + + // bool + template + struct encode_traits::value + >::type> + { + template + static void encode(const T& val, + basic_json_visitor& encoder, + const Json&, + std::error_code& ec) + { + encoder.bool_value(val,semantic_tag::none,ser_context(),ec); + } + }; + + // uint + template + struct encode_traits::value + >::type> + { + template + static void encode(const T& val, + basic_json_visitor& encoder, + const Json&, + std::error_code& ec) + { + encoder.uint64_value(val,semantic_tag::none,ser_context(),ec); + } + }; + + // int + template + struct encode_traits::value + >::type> + { + template + static void encode(const T& val, + basic_json_visitor& encoder, + const Json&, + std::error_code& ec) + { + encoder.int64_value(val,semantic_tag::none,ser_context(),ec); + } + }; + + // float or double + template + struct encode_traits::value + >::type> + { + template + static void encode(const T& val, + basic_json_visitor& encoder, + const Json&, + std::error_code& ec) + { + encoder.double_value(val,semantic_tag::none,ser_context(),ec); + } + }; + + // string + template + struct encode_traits::value && + std::is_same::value + >::type> + { + template + static void encode(const T& val, + basic_json_visitor& encoder, + const Json&, + std::error_code& ec) + { + encoder.string_value(val,semantic_tag::none,ser_context(),ec); + } + }; + template + struct encode_traits::value && + !std::is_same::value + >::type> + { + template + static void encode(const T& val, + basic_json_visitor& encoder, + const Json&, + std::error_code& ec) + { + std::basic_string s; + unicode_traits::convert(val.data(), val.size(), s); + encoder.string_value(s,semantic_tag::none,ser_context(),ec); + } + }; + + // std::pair + + template + struct encode_traits, CharT> + { + using value_type = std::pair; + + template + static void encode(const value_type& val, + basic_json_visitor& encoder, + const Json& proto, + std::error_code& ec) + { + encoder.begin_array(2,semantic_tag::none,ser_context(),ec); + if (ec) return; + encode_traits::encode(val.first, encoder, proto, ec); + if (ec) return; + encode_traits::encode(val.second, encoder, proto, ec); + if (ec) return; + encoder.end_array(ser_context(),ec); + } + }; + + // std::tuple + + namespace detail + { + template + struct json_serialize_tuple_helper + { + using char_type = typename Json::char_type; + using element_type = typename std::tuple_element::type; + using next = json_serialize_tuple_helper; + + static void encode(const Tuple& tuple, + basic_json_visitor& encoder, + const Json& proto, + std::error_code& ec) + { + encode_traits::encode(std::get(tuple), encoder, proto, ec); + if (ec) return; + next::encode(tuple, encoder, proto, ec); + } + }; + + template + struct json_serialize_tuple_helper<0, Size, Json, Tuple> + { + using char_type = typename Json::char_type; + static void encode(const Tuple&, + basic_json_visitor&, + const Json&, + std::error_code&) + { + } + }; + } // namespace detail + + + template + struct encode_traits, CharT> + { + using value_type = std::tuple; + static constexpr std::size_t size = sizeof...(E); + + template + static void encode(const value_type& val, + basic_json_visitor& encoder, + const Json& proto, + std::error_code& ec) + { + using helper = jsoncons::detail::json_serialize_tuple_helper>; + encoder.begin_array(size,semantic_tag::none,ser_context(),ec); + if (ec) return; + helper::encode(val, encoder, proto, ec); + if (ec) return; + encoder.end_array(ser_context(),ec); + } + }; + + // vector like + template + struct encode_traits::value && + type_traits::is_list_like::value && + !type_traits::is_typed_array::value + >::type> + { + using value_type = typename T::value_type; + + template + static void encode(const T& val, + basic_json_visitor& encoder, + const Json& proto, + std::error_code& ec) + { + encoder.begin_array(val.size(),semantic_tag::none,ser_context(),ec); + if (ec) return; + for (auto it = std::begin(val); it != std::end(val); ++it) + { + encode_traits::encode(*it, encoder, proto, ec); + if (ec) return; + } + encoder.end_array(ser_context(), ec); + } + }; + + template + struct encode_traits::value && + type_traits::is_list_like::value && + type_traits::is_typed_array::value + >::type> + { + using value_type = typename T::value_type; + + template + static void encode(const T& val, + basic_json_visitor& encoder, + const Json&, + std::error_code& ec) + { + encoder.typed_array(jsoncons::span(val), semantic_tag::none, ser_context(), ec); + } + }; + + // std::array + + template + struct encode_traits,CharT> + { + using value_type = typename std::array::value_type; + + template + static void encode(const std::array& val, + basic_json_visitor& encoder, + const Json& proto, + std::error_code& ec) + { + encoder.begin_array(val.size(),semantic_tag::none,ser_context(),ec); + if (ec) return; + for (auto it = std::begin(val); it != std::end(val); ++it) + { + encode_traits::encode(*it, encoder, proto, ec); + if (ec) return; + } + encoder.end_array(ser_context(),ec); + } + }; + + // map like + + template + struct encode_traits::value && + type_traits::is_map_like::value && + type_traits::is_constructible_from_const_pointer_and_size::value + >::type> + { + using mapped_type = typename T::mapped_type; + using value_type = typename T::value_type; + using key_type = typename T::key_type; + + template + static void encode(const T& val, + basic_json_visitor& encoder, + const Json& proto, + std::error_code& ec) + { + encoder.begin_object(val.size(), semantic_tag::none, ser_context(), ec); + if (ec) return; + for (auto it = std::begin(val); it != std::end(val); ++it) + { + encoder.key(it->first); + encode_traits::encode(it->second, encoder, proto, ec); + if (ec) return; + } + encoder.end_object(ser_context(), ec); + if (ec) return; + } + }; + + template + struct encode_traits::value && + type_traits::is_map_like::value && + std::is_integral::value + >::type> + { + using mapped_type = typename T::mapped_type; + using value_type = typename T::value_type; + using key_type = typename T::key_type; + + template + static void encode(const T& val, + basic_json_visitor& encoder, + const Json& proto, + std::error_code& ec) + { + encoder.begin_object(val.size(), semantic_tag::none, ser_context(), ec); + if (ec) return; + for (auto it = std::begin(val); it != std::end(val); ++it) + { + std::basic_string s; + jsoncons::detail::from_integer(it->first,s); + encoder.key(s); + encode_traits::encode(it->second, encoder, proto, ec); + if (ec) return; + } + encoder.end_object(ser_context(), ec); + if (ec) return; + } + }; + +} // jsoncons + +#endif + diff --git a/include/jsoncons/json.hpp b/include/jsoncons/json.hpp new file mode 100644 index 0000000..8362e77 --- /dev/null +++ b/include/jsoncons/json.hpp @@ -0,0 +1,18 @@ +// Copyright 2018 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSON_HPP +#define JSONCONS_JSON_HPP + +#include +#include +#include +#include +#include +#include + +#endif + diff --git a/include/jsoncons/json_array.hpp b/include/jsoncons/json_array.hpp new file mode 100644 index 0000000..5877f4d --- /dev/null +++ b/include/jsoncons/json_array.hpp @@ -0,0 +1,324 @@ +// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSON_ARRAY_HPP +#define JSONCONS_JSON_ARRAY_HPP + +#include +#include +#include +#include +#include // std::sort, std::stable_sort, std::lower_bound, std::unique +#include +#include +#include // std::iterator_traits +#include // std::allocator +#include // std::move +#include // assert +#include // std::enable_if +#include +#include + +namespace jsoncons { + + // json_array + + template class SequenceContainer = std::vector> + class json_array : public allocator_holder + { + public: + using allocator_type = typename Json::allocator_type; + using value_type = Json; + private: + using value_allocator_type = typename std::allocator_traits:: template rebind_alloc; + using value_container_type = SequenceContainer; + value_container_type elements_; + public: + using iterator = typename value_container_type::iterator; + using const_iterator = typename value_container_type::const_iterator; + using reference = typename std::iterator_traits::reference; + using const_reference = typename std::iterator_traits::reference; + + using allocator_holder::get_allocator; + + json_array() + { + } + + explicit json_array(const allocator_type& alloc) + : allocator_holder(alloc), + elements_(value_allocator_type(alloc)) + { + } + + explicit json_array(std::size_t n, + const allocator_type& alloc = allocator_type()) + : allocator_holder(alloc), + elements_(n,Json(),value_allocator_type(alloc)) + { + } + + explicit json_array(std::size_t n, + const Json& value, + const allocator_type& alloc = allocator_type()) + : allocator_holder(alloc), + elements_(n,value,value_allocator_type(alloc)) + { + } + + template + json_array(InputIterator begin, InputIterator end, const allocator_type& alloc = allocator_type()) + : allocator_holder(alloc), + elements_(begin,end,value_allocator_type(alloc)) + { + } + json_array(const json_array& val) + : allocator_holder(val.get_allocator()), + elements_(val.elements_) + { + } + json_array(const json_array& val, const allocator_type& alloc) + : allocator_holder(alloc), + elements_(val.elements_,value_allocator_type(alloc)) + { + } + + json_array(json_array&& val) noexcept + : allocator_holder(val.get_allocator()), + elements_(std::move(val.elements_)) + { + } + json_array(json_array&& val, const allocator_type& alloc) + : allocator_holder(alloc), + elements_(std::move(val.elements_),value_allocator_type(alloc)) + { + } + + json_array(const std::initializer_list& init, + const allocator_type& alloc = allocator_type()) + : allocator_holder(alloc), + elements_(init,value_allocator_type(alloc)) + { + } + ~json_array() noexcept + { + flatten_and_destroy(); + } + + reference back() + { + return elements_.back(); + } + + const_reference back() const + { + return elements_.back(); + } + + void pop_back() + { + elements_.pop_back(); + } + + bool empty() const + { + return elements_.empty(); + } + + void swap(json_array& val) noexcept + { + elements_.swap(val.elements_); + } + + std::size_t size() const {return elements_.size();} + + std::size_t capacity() const {return elements_.capacity();} + + void clear() {elements_.clear();} + + void shrink_to_fit() + { + for (std::size_t i = 0; i < elements_.size(); ++i) + { + elements_[i].shrink_to_fit(); + } + elements_.shrink_to_fit(); + } + + void reserve(std::size_t n) {elements_.reserve(n);} + + void resize(std::size_t n) {elements_.resize(n);} + + void resize(std::size_t n, const Json& val) {elements_.resize(n,val);} + + #if !defined(JSONCONS_NO_DEPRECATED) + JSONCONS_DEPRECATED_MSG("Instead, use erase(const_iterator, const_iterator)") + void remove_range(std::size_t from_index, std::size_t to_index) + { + JSONCONS_ASSERT(from_index <= to_index); + JSONCONS_ASSERT(to_index <= elements_.size()); + elements_.erase(elements_.cbegin()+from_index,elements_.cbegin()+to_index); + } + #endif + + iterator erase(const_iterator pos) + { + #if defined(JSONCONS_NO_VECTOR_ERASE_TAKES_CONST_ITERATOR) + iterator it = elements_.begin() + (pos - elements_.begin()); + return elements_.erase(it); + #else + return elements_.erase(pos); + #endif + } + + iterator erase(const_iterator first, const_iterator last) + { + #if defined(JSONCONS_NO_VECTOR_ERASE_TAKES_CONST_ITERATOR) + iterator it1 = elements_.begin() + (first - elements_.begin()); + iterator it2 = elements_.begin() + (last - elements_.begin()); + return elements_.erase(it1,it2); + #else + return elements_.erase(first,last); + #endif + } + + Json& operator[](std::size_t i) {return elements_[i];} + + const Json& operator[](std::size_t i) const {return elements_[i];} + + // push_back + + template + typename std::enable_if::value,void>::type + push_back(T&& value) + { + elements_.emplace_back(std::forward(value)); + } + + template + typename std::enable_if::value,void>::type + push_back(T&& value) + { + elements_.emplace_back(std::forward(value),get_allocator()); + } + + template + typename std::enable_if::value,iterator>::type + insert(const_iterator pos, T&& value) + { + #if defined(JSONCONS_NO_VECTOR_ERASE_TAKES_CONST_ITERATOR) + iterator it = elements_.begin() + (pos - elements_.begin()); + return elements_.emplace(it, std::forward(value)); + #else + return elements_.emplace(pos, std::forward(value)); + #endif + } + template + typename std::enable_if::value,iterator>::type + insert(const_iterator pos, T&& value) + { + #if defined(JSONCONS_NO_VECTOR_ERASE_TAKES_CONST_ITERATOR) + iterator it = elements_.begin() + (pos - elements_.begin()); + return elements_.emplace(it, std::forward(value), get_allocator()); + #else + return elements_.emplace(pos, std::forward(value), get_allocator()); + #endif + } + + template + iterator insert(const_iterator pos, InputIt first, InputIt last) + { + #if defined(JSONCONS_NO_VECTOR_ERASE_TAKES_CONST_ITERATOR) + iterator it = elements_.begin() + (pos - elements_.begin()); + elements_.insert(it, first, last); + return first == last ? it : it + 1; + #else + return elements_.insert(pos, first, last); + #endif + } + + template + typename std::enable_if::value,iterator>::type + emplace(const_iterator pos, Args&&... args) + { + #if defined(JSONCONS_NO_VECTOR_ERASE_TAKES_CONST_ITERATOR) + iterator it = elements_.begin() + (pos - elements_.begin()); + return elements_.emplace(it, std::forward(args)...); + #else + return elements_.emplace(pos, std::forward(args)...); + #endif + } + + template + Json& emplace_back(Args&&... args) + { + elements_.emplace_back(std::forward(args)...); + return elements_.back(); + } + + iterator begin() {return elements_.begin();} + + iterator end() {return elements_.end();} + + const_iterator begin() const {return elements_.begin();} + + const_iterator end() const {return elements_.end();} + + bool operator==(const json_array& rhs) const noexcept + { + return elements_ == rhs.elements_; + } + + bool operator<(const json_array& rhs) const noexcept + { + return elements_ < rhs.elements_; + } + private: + + json_array& operator=(const json_array&) = delete; + + void flatten_and_destroy() noexcept + { + while (!elements_.empty()) + { + value_type current = std::move(elements_.back()); + elements_.pop_back(); + switch (current.storage_kind()) + { + case json_storage_kind::array_value: + { + for (auto&& item : current.array_range()) + { + if (item.size() > 0) // non-empty object or array + { + elements_.push_back(std::move(item)); + } + } + current.clear(); + break; + } + case json_storage_kind::object_value: + { + for (auto&& kv : current.object_range()) + { + if (kv.value().size() > 0) // non-empty object or array + { + elements_.push_back(std::move(kv.value())); + } + } + current.clear(); + break; + } + default: + break; + } + } + } + }; + +} // namespace jsoncons + +#endif diff --git a/include/jsoncons/json_content_handler.hpp b/include/jsoncons/json_content_handler.hpp new file mode 100644 index 0000000..edec19e --- /dev/null +++ b/include/jsoncons/json_content_handler.hpp @@ -0,0 +1,12 @@ +// Copyright 2018 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSON_CONTENT_HANDLER_HPP +#define JSONCONS_JSON_CONTENT_HANDLER_HPP + +#include + +#endif diff --git a/include/jsoncons/json_cursor.hpp b/include/jsoncons/json_cursor.hpp new file mode 100644 index 0000000..a30c351 --- /dev/null +++ b/include/jsoncons/json_cursor.hpp @@ -0,0 +1,448 @@ +// Copyright 2018 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSON_CURSOR_HPP +#define JSONCONS_JSON_CURSOR_HPP + +#include // std::allocator +#include +#include +#include +#include +#include +#include // std::basic_istream +#include +#include +#include +#include +#include +#include +#include +#include + +namespace jsoncons { + +template,class Allocator=std::allocator> +class basic_json_cursor : public basic_staj_cursor, private virtual ser_context +{ +public: + using source_type = Source; + using char_type = CharT; + using allocator_type = Allocator; + using string_view_type = jsoncons::basic_string_view; +private: + typedef typename std::allocator_traits:: template rebind_alloc char_allocator_type; + static constexpr size_t default_max_buffer_size = 16384; + + json_source_adaptor source_; + basic_json_parser parser_; + basic_staj_visitor cursor_visitor_; + bool done_; + + // Noncopyable and nonmoveable + basic_json_cursor(const basic_json_cursor&) = delete; + basic_json_cursor& operator=(const basic_json_cursor&) = delete; + +public: + + // Constructors that throw parse exceptions + + template + basic_json_cursor(Sourceable&& source, + const basic_json_decode_options& options = basic_json_decode_options(), + std::function err_handler = default_json_parsing(), + const Allocator& alloc = Allocator(), + typename std::enable_if,Sourceable>::value>::type* = 0) + : source_(std::forward(source)), + parser_(options,err_handler,alloc), + cursor_visitor_(accept_all), + done_(false) + { + if (!done()) + { + next(); + } + } + + template + basic_json_cursor(Sourceable&& source, + const basic_json_decode_options& options = basic_json_decode_options(), + std::function err_handler = default_json_parsing(), + const Allocator& alloc = Allocator(), + typename std::enable_if,Sourceable>::value>::type* = 0) + : source_(), + parser_(options, err_handler, alloc), + cursor_visitor_(accept_all), + done_(false) + { + initialize_with_string_view(std::forward(source)); + } + + + // Constructors that set parse error codes + template + basic_json_cursor(Sourceable&& source, + std::error_code& ec) + : basic_json_cursor(std::allocator_arg, Allocator(), + std::forward(source), + basic_json_decode_options(), + default_json_parsing(), + ec) + { + } + + template + basic_json_cursor(Sourceable&& source, + const basic_json_decode_options& options, + std::error_code& ec) + : basic_json_cursor(std::allocator_arg, Allocator(), + std::forward(source), + options, + default_json_parsing(), + ec) + { + } + + template + basic_json_cursor(Sourceable&& source, + const basic_json_decode_options& options, + std::function err_handler, + std::error_code& ec) + : basic_json_cursor(std::allocator_arg, Allocator(), + std::forward(source), + options, + err_handler, + ec) + { + } + + template + basic_json_cursor(std::allocator_arg_t, const Allocator& alloc, + Sourceable&& source, + const basic_json_decode_options& options, + std::function err_handler, + std::error_code& ec, + typename std::enable_if,Sourceable>::value>::type* = 0) + : source_(std::forward(source)), + parser_(options,err_handler,alloc), + cursor_visitor_(accept_all), + done_(false) + { + if (!done()) + { + next(ec); + } + } + + template + basic_json_cursor(std::allocator_arg_t, const Allocator& alloc, + Sourceable&& source, + const basic_json_decode_options& options, + std::function err_handler, + std::error_code& ec, + typename std::enable_if,Sourceable>::value>::type* = 0) + : source_(), + parser_(options, err_handler, alloc), + cursor_visitor_(accept_all), + done_(false) + { + initialize_with_string_view(std::forward(source), ec); + } + + void reset() + { + parser_.reset(); + cursor_visitor_.reset(); + done_ = false; + if (!done()) + { + next(); + } + } + + template + typename std::enable_if,Sourceable>::value>::type + reset(Sourceable&& source) + { + source_ = std::forward(source); + parser_.reinitialize(); + cursor_visitor_.reset(); + done_ = false; + if (!done()) + { + next(); + } + } + + template + typename std::enable_if,Sourceable>::value>::type + reset(Sourceable&& source) + { + source_ = {}; + parser_.reinitialize(); + cursor_visitor_.reset(); + done_ = false; + initialize_with_string_view(std::forward(source)); + } + + void reset(std::error_code& ec) + { + parser_.reset(); + cursor_visitor_.reset(); + done_ = false; + if (!done()) + { + next(ec); + } + } + + template + typename std::enable_if,Sourceable>::value>::type + reset(Sourceable&& source, std::error_code& ec) + { + source_ = std::forward(source); + parser_.reinitialize(); + cursor_visitor_.reset(); + done_ = false; + if (!done()) + { + next(ec); + } + } + + template + typename std::enable_if,Sourceable>::value>::type + reset(Sourceable&& source, std::error_code& ec) + { + source_ = {}; + parser_.reinitialize(); + done_ = false; + initialize_with_string_view(std::forward(source), ec); + } + + bool done() const override + { + return parser_.done() || done_; + } + + const basic_staj_event& current() const override + { + return cursor_visitor_.event(); + } + + void read_to(basic_json_visitor& visitor) override + { + std::error_code ec; + read_to(visitor, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec,parser_.line(),parser_.column())); + } + } + + void read_to(basic_json_visitor& visitor, + std::error_code& ec) override + { + if (staj_to_saj_event(cursor_visitor_.event(), visitor, *this, ec)) + { + read_next(visitor, ec); + } + } + + void next() override + { + std::error_code ec; + next(ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec,parser_.line(),parser_.column())); + } + } + + void next(std::error_code& ec) override + { + read_next(ec); + } + + void check_done() + { + std::error_code ec; + check_done(ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec,parser_.line(),parser_.column())); + } + } + + const ser_context& context() const override + { + return *this; + } + + void check_done(std::error_code& ec) + { + if (source_.is_error()) + { + ec = json_errc::source_error; + return; + } + if (source_.eof()) + { + parser_.check_done(ec); + if (ec) return; + } + else + { + do + { + if (parser_.source_exhausted()) + { + auto s = source_.read_buffer(ec); + if (ec) return; + if (s.size() > 0) + { + parser_.update(s.data(),s.size()); + } + } + if (!parser_.source_exhausted()) + { + parser_.check_done(ec); + if (ec) return; + } + } + while (!eof()); + } + } + + bool eof() const + { + return parser_.source_exhausted() && source_.eof(); + } + + std::size_t line() const override + { + return parser_.line(); + } + + std::size_t column() const override + { + return parser_.column(); + } + + friend + basic_staj_filter_view operator|(basic_json_cursor& cursor, + std::function&, const ser_context&)> pred) + { + return basic_staj_filter_view(cursor, pred); + } + +private: + + static bool accept_all(const basic_staj_event&, const ser_context&) + { + return true; + } + + void initialize_with_string_view(string_view_type sv) + { + auto r = unicode_traits::detect_json_encoding(sv.data(), sv.size()); + if (!(r.encoding == unicode_traits::encoding_kind::utf8 || r.encoding == unicode_traits::encoding_kind::undetected)) + { + JSONCONS_THROW(ser_error(json_errc::illegal_unicode_character,parser_.line(),parser_.column())); + } + std::size_t offset = (r.ptr - sv.data()); + parser_.update(sv.data()+offset,sv.size()-offset); + if (!done()) + { + next(); + } + } + + void initialize_with_string_view(string_view_type sv, std::error_code& ec) + { + auto r = unicode_traits::detect_json_encoding(sv.data(), sv.size()); + if (!(r.encoding == unicode_traits::encoding_kind::utf8 || r.encoding == unicode_traits::encoding_kind::undetected)) + { + ec = json_errc::illegal_unicode_character; + return; + } + std::size_t offset = (r.ptr - sv.data()); + parser_.update(sv.data()+offset,sv.size()-offset); + if (!done()) + { + next(ec); + } + } + + void read_next(std::error_code& ec) + { + read_next(cursor_visitor_, ec); + } + + void read_next(basic_json_visitor& visitor, std::error_code& ec) + { + parser_.restart(); + while (!parser_.stopped()) + { + if (parser_.source_exhausted()) + { + auto s = source_.read_buffer(ec); + if (ec) return; + if (s.size() > 0) + { + parser_.update(s.data(),s.size()); + if (ec) return; + } + } + bool eof = parser_.source_exhausted() && source_.eof(); + parser_.parse_some(visitor, ec); + if (ec) return; + if (eof) + { + if (parser_.enter()) + { + done_ = true; + break; + } + else if (!parser_.accept()) + { + ec = json_errc::unexpected_eof; + return; + } + } + } + } +}; + +using json_stream_cursor = basic_json_cursor>; +using json_string_cursor = basic_json_cursor>; +using wjson_stream_cursor = basic_json_cursor>; +using wjson_string_cursor = basic_json_cursor>; + +using json_cursor = basic_json_cursor; +using wjson_cursor = basic_json_cursor; + +#if !defined(JSONCONS_NO_DEPRECATED) +template> +using basic_json_pull_reader = basic_json_cursor; + +JSONCONS_DEPRECATED_MSG("Instead, use json_cursor") typedef json_cursor json_pull_reader; +JSONCONS_DEPRECATED_MSG("Instead, use wjson_cursor") typedef wjson_cursor wjson_pull_reader; + +template> +using basic_json_stream_reader = basic_json_cursor; + +template> +using basic_json_staj_cursor = basic_json_cursor; + +JSONCONS_DEPRECATED_MSG("Instead, use json_cursor") typedef json_cursor json_staj_cursor; +JSONCONS_DEPRECATED_MSG("Instead, use wjson_cursor") typedef wjson_cursor wjson_staj_cursor; +#endif + +} + +#endif + diff --git a/include/jsoncons/json_decoder.hpp b/include/jsoncons/json_decoder.hpp new file mode 100644 index 0000000..c5aa0b2 --- /dev/null +++ b/include/jsoncons/json_decoder.hpp @@ -0,0 +1,420 @@ +// Copyright 2013-2016 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSON_DECODER_HPP +#define JSONCONS_JSON_DECODER_HPP + +#include +#include +#include // std::true_type +#include // std::allocator +#include // std::make_move_iterator +#include // std::move +#include +#include + +namespace jsoncons { + +template > +class json_decoder final : public basic_json_visitor +{ +public: + using char_type = typename Json::char_type; + using typename basic_json_visitor::string_view_type; + + using key_value_type = typename Json::key_value_type; + using key_type = typename Json::key_type; + using array = typename Json::array; + using object = typename Json::object; + using result_allocator_type = typename Json::allocator_type; + using json_string_allocator = typename key_type::allocator_type; + using json_array_allocator = typename array::allocator_type; + using json_object_allocator = typename object::allocator_type; + typedef typename std::allocator_traits:: template rebind_alloc json_byte_allocator_type; +private: + struct stack_item + { + key_type name_; + Json value_; + + template + stack_item(key_type&& name, Args&& ... args) + : name_(std::move(name)), value_(std::forward(args)...) + { + } + + stack_item() = default; + stack_item(const stack_item&) = default; + stack_item(stack_item&&) = default; + stack_item& operator=(const stack_item&) = default; + stack_item& operator=(stack_item&&) = default; + }; + + enum class structure_type {root_t, array_t, object_t}; + + struct structure_info + { + structure_type type_; + std::size_t container_index_; + + structure_info(structure_type type, std::size_t offset) noexcept + : type_(type), container_index_(offset) + { + } + + }; + + using temp_allocator_type = TempAllocator; + typedef typename std::allocator_traits:: template rebind_alloc stack_item_allocator_type; + typedef typename std::allocator_traits:: template rebind_alloc structure_info_allocator_type; + + result_allocator_type result_allocator_; + temp_allocator_type temp_allocator_; + + Json result_; + + key_type name_; + std::vector item_stack_; + std::vector structure_stack_; + bool is_valid_; + +public: + json_decoder(const temp_allocator_type& temp_alloc = temp_allocator_type()) + : result_allocator_(result_allocator_type()), + temp_allocator_(temp_alloc), + result_(), + name_(result_allocator_), + item_stack_(temp_allocator_), + structure_stack_(temp_allocator_), + is_valid_(false) + { + item_stack_.reserve(1000); + structure_stack_.reserve(100); + structure_stack_.emplace_back(structure_type::root_t, 0); + } + + json_decoder(result_allocator_arg_t, + const result_allocator_type& result_alloc) + : result_allocator_(result_alloc), + temp_allocator_(), + result_(), + name_(result_allocator_), + item_stack_(), + structure_stack_(), + is_valid_(false) + { + item_stack_.reserve(1000); + structure_stack_.reserve(100); + structure_stack_.emplace_back(structure_type::root_t, 0); + } + + json_decoder(result_allocator_arg_t, + const result_allocator_type& result_alloc, + const temp_allocator_type& temp_alloc) + : result_allocator_(result_alloc), + temp_allocator_(temp_alloc), + result_(), + name_(result_allocator_), + item_stack_(temp_allocator_), + structure_stack_(temp_allocator_), + is_valid_(false) + { + item_stack_.reserve(1000); + structure_stack_.reserve(100); + structure_stack_.emplace_back(structure_type::root_t, 0); + } + + void reset() + { + is_valid_ = false; + item_stack_.clear(); + structure_stack_.clear(); + structure_stack_.emplace_back(structure_type::root_t, 0); + } + + bool is_valid() const + { + return is_valid_; + } + + Json get_result() + { + JSONCONS_ASSERT(is_valid_); + is_valid_ = false; + return std::move(result_); + } + +#if !defined(JSONCONS_NO_DEPRECATED) + JSONCONS_DEPRECATED_MSG("Instead, use get_result()") + Json& root() + { + return result_; + } +#endif + +private: + + void visit_flush() override + { + } + + bool visit_begin_object(semantic_tag tag, const ser_context&, std::error_code&) override + { + if (structure_stack_.back().type_ == structure_type::root_t) + { + item_stack_.clear(); + is_valid_ = false; + } + item_stack_.emplace_back(std::forward(name_), json_object_arg, tag, result_allocator_); + structure_stack_.emplace_back(structure_type::object_t, item_stack_.size()-1); + return true; + } + + bool visit_end_object(const ser_context&, std::error_code&) override + { + JSONCONS_ASSERT(structure_stack_.size() > 0); + JSONCONS_ASSERT(structure_stack_.back().type_ == structure_type::object_t); + const size_t structure_index = structure_stack_.back().container_index_; + JSONCONS_ASSERT(item_stack_.size() > structure_index); + const size_t count = item_stack_.size() - (structure_index + 1); + auto first = item_stack_.begin() + (structure_index+1); + auto last = first + count; + item_stack_[structure_index].value_.object_value().insert( + std::make_move_iterator(first), + std::make_move_iterator(last), + [](stack_item&& val){return key_value_type(std::move(val.name_), std::move(val.value_));} + ); + item_stack_.erase(item_stack_.begin()+structure_index+1, item_stack_.end()); + structure_stack_.pop_back(); + if (structure_stack_.back().type_ == structure_type::root_t) + { + result_.swap(item_stack_.front().value_); + item_stack_.pop_back(); + is_valid_ = true; + return false; + } + return true; + } + + bool visit_begin_array(semantic_tag tag, const ser_context&, std::error_code&) override + { + if (structure_stack_.back().type_ == structure_type::root_t) + { + item_stack_.clear(); + is_valid_ = false; + } + item_stack_.emplace_back(std::forward(name_), json_array_arg, tag, result_allocator_); + structure_stack_.emplace_back(structure_type::array_t, item_stack_.size()-1); + return true; + } + + bool visit_end_array(const ser_context&, std::error_code&) override + { + JSONCONS_ASSERT(structure_stack_.size() > 1); + JSONCONS_ASSERT(structure_stack_.back().type_ == structure_type::array_t); + const size_t container_index = structure_stack_.back().container_index_; + JSONCONS_ASSERT(item_stack_.size() > container_index); + + auto& container = item_stack_[container_index].value_; + + const size_t size = item_stack_.size() - (container_index + 1); + //std::cout << "size on item stack: " << size << "\n"; + + if (size > 0) + { + container.reserve(size); + auto first = item_stack_.begin() + (container_index+1); + auto last = first + size; + for (auto it = first; it != last; ++it) + { + container.push_back(std::move(it->value_)); + } + item_stack_.erase(first, item_stack_.end()); + } + + structure_stack_.pop_back(); + if (structure_stack_.back().type_ == structure_type::root_t) + { + result_.swap(item_stack_.front().value_); + item_stack_.pop_back(); + is_valid_ = true; + return false; + } + return true; + } + + bool visit_key(const string_view_type& name, const ser_context&, std::error_code&) override + { + name_ = key_type(name.data(),name.length(),result_allocator_); + return true; + } + + bool visit_string(const string_view_type& sv, semantic_tag tag, const ser_context&, std::error_code&) override + { + switch (structure_stack_.back().type_) + { + case structure_type::object_t: + case structure_type::array_t: + item_stack_.emplace_back(std::forward(name_), sv, tag, result_allocator_); + break; + case structure_type::root_t: + result_ = Json(sv, tag, result_allocator_); + is_valid_ = true; + return false; + } + return true; + } + + bool visit_byte_string(const byte_string_view& b, + semantic_tag tag, + const ser_context&, + std::error_code&) override + { + switch (structure_stack_.back().type_) + { + case structure_type::object_t: + case structure_type::array_t: + item_stack_.emplace_back(std::forward(name_), byte_string_arg, b, tag, result_allocator_); + break; + case structure_type::root_t: + result_ = Json(byte_string_arg, b, tag, result_allocator_); + is_valid_ = true; + return false; + } + return true; + } + + bool visit_byte_string(const byte_string_view& b, + uint64_t ext_tag, + const ser_context&, + std::error_code&) override + { + switch (structure_stack_.back().type_) + { + case structure_type::object_t: + case structure_type::array_t: + item_stack_.emplace_back(std::forward(name_), byte_string_arg, b, ext_tag, result_allocator_); + break; + case structure_type::root_t: + result_ = Json(byte_string_arg, b, ext_tag, result_allocator_); + is_valid_ = true; + return false; + } + return true; + } + + bool visit_int64(int64_t value, + semantic_tag tag, + const ser_context&, + std::error_code&) override + { + switch (structure_stack_.back().type_) + { + case structure_type::object_t: + case structure_type::array_t: + item_stack_.emplace_back(std::forward(name_), value, tag); + break; + case structure_type::root_t: + result_ = Json(value,tag); + is_valid_ = true; + return false; + } + return true; + } + + bool visit_uint64(uint64_t value, + semantic_tag tag, + const ser_context&, + std::error_code&) override + { + switch (structure_stack_.back().type_) + { + case structure_type::object_t: + case structure_type::array_t: + item_stack_.emplace_back(std::forward(name_), value, tag); + break; + case structure_type::root_t: + result_ = Json(value,tag); + is_valid_ = true; + return false; + } + return true; + } + + bool visit_half(uint16_t value, + semantic_tag tag, + const ser_context&, + std::error_code&) override + { + switch (structure_stack_.back().type_) + { + case structure_type::object_t: + case structure_type::array_t: + item_stack_.emplace_back(std::forward(name_), half_arg, value, tag); + break; + case structure_type::root_t: + result_ = Json(half_arg, value, tag); + is_valid_ = true; + return false; + } + return true; + } + + bool visit_double(double value, + semantic_tag tag, + const ser_context&, + std::error_code&) override + { + switch (structure_stack_.back().type_) + { + case structure_type::object_t: + case structure_type::array_t: + item_stack_.emplace_back(std::forward(name_), value, tag); + break; + case structure_type::root_t: + result_ = Json(value, tag); + is_valid_ = true; + return false; + } + return true; + } + + bool visit_bool(bool value, semantic_tag tag, const ser_context&, std::error_code&) override + { + switch (structure_stack_.back().type_) + { + case structure_type::object_t: + case structure_type::array_t: + item_stack_.emplace_back(std::forward(name_), value, tag); + break; + case structure_type::root_t: + result_ = Json(value, tag); + is_valid_ = true; + return false; + } + return true; + } + + bool visit_null(semantic_tag tag, const ser_context&, std::error_code&) override + { + switch (structure_stack_.back().type_) + { + case structure_type::object_t: + case structure_type::array_t: + item_stack_.emplace_back(std::forward(name_), null_type(), tag); + break; + case structure_type::root_t: + result_ = Json(null_type(), tag); + is_valid_ = true; + return false; + } + return true; + } +}; + +} + +#endif diff --git a/include/jsoncons/json_encoder.hpp b/include/jsoncons/json_encoder.hpp new file mode 100644 index 0000000..df0d3fa --- /dev/null +++ b/include/jsoncons/json_encoder.hpp @@ -0,0 +1,1587 @@ +// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSON_ENCODER_HPP +#define JSONCONS_JSON_ENCODER_HPP + +#include // std::array +#include +#include +#include // std::isfinite, std::isnan +#include // std::numeric_limits +#include +#include // std::move +#include +#include +#include +#include +#include +#include +#include +#include +#include + +namespace jsoncons { +namespace detail { + + inline + bool is_control_character(uint32_t c) + { + return c <= 0x1F || c == 0x7f; + } + + inline + bool is_non_ascii_codepoint(uint32_t cp) + { + return cp >= 0x80; + } + + template + std::size_t escape_string(const CharT* s, std::size_t length, + bool escape_all_non_ascii, bool escape_solidus, + Sink& sink) + { + std::size_t count = 0; + const CharT* begin = s; + const CharT* end = s + length; + for (const CharT* it = begin; it != end; ++it) + { + CharT c = *it; + switch (c) + { + case '\\': + sink.push_back('\\'); + sink.push_back('\\'); + count += 2; + break; + case '"': + sink.push_back('\\'); + sink.push_back('\"'); + count += 2; + break; + case '\b': + sink.push_back('\\'); + sink.push_back('b'); + count += 2; + break; + case '\f': + sink.push_back('\\'); + sink.push_back('f'); + count += 2; + break; + case '\n': + sink.push_back('\\'); + sink.push_back('n'); + count += 2; + break; + case '\r': + sink.push_back('\\'); + sink.push_back('r'); + count += 2; + break; + case '\t': + sink.push_back('\\'); + sink.push_back('t'); + count += 2; + break; + default: + if (escape_solidus && c == '/') + { + sink.push_back('\\'); + sink.push_back('/'); + count += 2; + } + else if (is_control_character(c) || escape_all_non_ascii) + { + // convert to codepoint + uint32_t cp; + auto r = unicode_traits::to_codepoint(it, end, cp, unicode_traits::conv_flags::strict); + if (r.ec != unicode_traits::conv_errc()) + { + JSONCONS_THROW(ser_error(json_errc::illegal_codepoint)); + } + it = r.ptr - 1; + if (is_non_ascii_codepoint(cp) || is_control_character(c)) + { + if (cp > 0xFFFF) + { + cp -= 0x10000; + uint32_t first = (cp >> 10) + 0xD800; + uint32_t second = ((cp & 0x03FF) + 0xDC00); + + sink.push_back('\\'); + sink.push_back('u'); + sink.push_back(jsoncons::detail::to_hex_character(first >> 12 & 0x000F)); + sink.push_back(jsoncons::detail::to_hex_character(first >> 8 & 0x000F)); + sink.push_back(jsoncons::detail::to_hex_character(first >> 4 & 0x000F)); + sink.push_back(jsoncons::detail::to_hex_character(first & 0x000F)); + sink.push_back('\\'); + sink.push_back('u'); + sink.push_back(jsoncons::detail::to_hex_character(second >> 12 & 0x000F)); + sink.push_back(jsoncons::detail::to_hex_character(second >> 8 & 0x000F)); + sink.push_back(jsoncons::detail::to_hex_character(second >> 4 & 0x000F)); + sink.push_back(jsoncons::detail::to_hex_character(second & 0x000F)); + count += 12; + } + else + { + sink.push_back('\\'); + sink.push_back('u'); + sink.push_back(jsoncons::detail::to_hex_character(cp >> 12 & 0x000F)); + sink.push_back(jsoncons::detail::to_hex_character(cp >> 8 & 0x000F)); + sink.push_back(jsoncons::detail::to_hex_character(cp >> 4 & 0x000F)); + sink.push_back(jsoncons::detail::to_hex_character(cp & 0x000F)); + count += 6; + } + } + else + { + sink.push_back(c); + ++count; + } + } + else + { + sink.push_back(c); + ++count; + } + break; + } + } + return count; + } + + inline + byte_string_chars_format resolve_byte_string_chars_format(byte_string_chars_format format1, + byte_string_chars_format format2, + byte_string_chars_format default_format = byte_string_chars_format::base64url) + { + byte_string_chars_format sink; + switch (format1) + { + case byte_string_chars_format::base16: + case byte_string_chars_format::base64: + case byte_string_chars_format::base64url: + sink = format1; + break; + default: + switch (format2) + { + case byte_string_chars_format::base64url: + case byte_string_chars_format::base64: + case byte_string_chars_format::base16: + sink = format2; + break; + default: // base64url + { + sink = default_format; + break; + } + } + break; + } + return sink; + } + +} // namespace detail + + template,class Allocator=std::allocator> + class basic_json_encoder final : public basic_json_visitor + { + static const jsoncons::basic_string_view null_constant() + { + static const jsoncons::basic_string_view k = JSONCONS_STRING_VIEW_CONSTANT(CharT, "null"); + return k; + } + static const jsoncons::basic_string_view true_constant() + { + static const jsoncons::basic_string_view k = JSONCONS_STRING_VIEW_CONSTANT(CharT, "true"); + return k; + } + static const jsoncons::basic_string_view false_constant() + { + static const jsoncons::basic_string_view k = JSONCONS_STRING_VIEW_CONSTANT(CharT, "false"); + return k; + } + public: + using allocator_type = Allocator; + using char_type = CharT; + using typename basic_json_visitor::string_view_type; + using sink_type = Sink; + using string_type = typename basic_json_encode_options::string_type; + + private: + enum class container_type {object, array}; + + class encoding_context + { + container_type type_; + std::size_t count_; + line_split_kind line_splits_; + bool indent_before_; + bool new_line_after_; + std::size_t begin_pos_; + std::size_t data_pos_; + public: + encoding_context(container_type type, line_split_kind split_lines, bool indent_once, + std::size_t begin_pos, std::size_t data_pos) noexcept + : type_(type), count_(0), line_splits_(split_lines), indent_before_(indent_once), new_line_after_(false), + begin_pos_(begin_pos), data_pos_(data_pos) + { + } + + encoding_context(const encoding_context&) = default; + encoding_context& operator=(const encoding_context&) = default; + + void set_position(std::size_t pos) + { + data_pos_ = pos; + } + + std::size_t begin_pos() const + { + return begin_pos_; + } + + std::size_t data_pos() const + { + return data_pos_; + } + + std::size_t count() const + { + return count_; + } + + void increment_count() + { + ++count_; + } + + bool new_line_after() const + { + return new_line_after_; + } + + void new_line_after(bool value) + { + new_line_after_ = value; + } + + bool is_object() const + { + return type_ == container_type::object; + } + + bool is_array() const + { + return type_ == container_type::array; + } + + bool is_same_line() const + { + return line_splits_ == line_split_kind::same_line; + } + + bool is_new_line() const + { + return line_splits_ == line_split_kind::new_line; + } + + bool is_multi_line() const + { + return line_splits_ == line_split_kind::multi_line; + } + + bool is_indent_once() const + { + return count_ == 0 ? indent_before_ : false; + } + + }; + typedef typename std::allocator_traits:: template rebind_alloc encoding_context_allocator_type; + + Sink sink_; + basic_json_encode_options options_; + jsoncons::detail::write_double fp_; + + std::vector stack_; + int indent_amount_; + std::size_t column_; + std::basic_string colon_str_; + std::basic_string comma_str_; + std::basic_string open_object_brace_str_; + std::basic_string close_object_brace_str_; + std::basic_string open_array_bracket_str_; + std::basic_string close_array_bracket_str_; + int nesting_depth_; + + // Noncopyable and nonmoveable + basic_json_encoder(const basic_json_encoder&) = delete; + basic_json_encoder& operator=(const basic_json_encoder&) = delete; + public: + basic_json_encoder(Sink&& sink, + const Allocator& alloc = Allocator()) + : basic_json_encoder(std::forward(sink), basic_json_encode_options(), alloc) + { + } + + basic_json_encoder(Sink&& sink, + const basic_json_encode_options& options, + const Allocator& alloc = Allocator()) + : sink_(std::forward(sink)), + options_(options), + fp_(options.float_format(), options.precision()), + stack_(alloc), + indent_amount_(0), + column_(0), + nesting_depth_(0) + { + switch (options.spaces_around_colon()) + { + case spaces_option::space_after: + colon_str_ = std::basic_string({':',' '}); + break; + case spaces_option::space_before: + colon_str_ = std::basic_string({' ',':'}); + break; + case spaces_option::space_before_and_after: + colon_str_ = std::basic_string({' ',':',' '}); + break; + default: + colon_str_.push_back(':'); + break; + } + switch (options.spaces_around_comma()) + { + case spaces_option::space_after: + comma_str_ = std::basic_string({',',' '}); + break; + case spaces_option::space_before: + comma_str_ = std::basic_string({' ',','}); + break; + case spaces_option::space_before_and_after: + comma_str_ = std::basic_string({' ',',',' '}); + break; + default: + comma_str_.push_back(','); + break; + } + if (options.pad_inside_object_braces()) + { + open_object_brace_str_ = std::basic_string({'{', ' '}); + close_object_brace_str_ = std::basic_string({' ', '}'}); + } + else + { + open_object_brace_str_.push_back('{'); + close_object_brace_str_.push_back('}'); + } + if (options.pad_inside_array_brackets()) + { + open_array_bracket_str_ = std::basic_string({'[', ' '}); + close_array_bracket_str_ = std::basic_string({' ', ']'}); + } + else + { + open_array_bracket_str_.push_back('['); + close_array_bracket_str_.push_back(']'); + } + } + + ~basic_json_encoder() noexcept + { + JSONCONS_TRY + { + sink_.flush(); + } + JSONCONS_CATCH(...) + { + } + } + + void reset() + { + stack_.clear(); + indent_amount_ = 0; + column_ = 0; + nesting_depth_ = 0; + } + + void reset(Sink&& sink) + { + sink_ = std::move(sink); + reset(); + } + + private: + // Implementing methods + void visit_flush() override + { + sink_.flush(); + } + + bool visit_begin_object(semantic_tag, const ser_context&, std::error_code& ec) override + { + if (JSONCONS_UNLIKELY(++nesting_depth_ > options_.max_nesting_depth())) + { + ec = json_errc::max_nesting_depth_exceeded; + return false; + } + if (!stack_.empty() && stack_.back().is_array() && stack_.back().count() > 0) + { + sink_.append(comma_str_.data(),comma_str_.length()); + column_ += comma_str_.length(); + } + + if (!stack_.empty()) // object or array + { + if (stack_.back().is_object()) + { + switch (options_.object_object_line_splits()) + { + case line_split_kind::same_line: + if (column_ >= options_.line_length_limit()) + { + break_line(); + } + break; + case line_split_kind::new_line: + if (column_ >= options_.line_length_limit()) + { + break_line(); + } + break; + default: // multi_line + break; + } + stack_.emplace_back(container_type::object,options_.object_object_line_splits(), false, + column_, column_+open_object_brace_str_.length()); + } + else // array + { + switch (options_.array_object_line_splits()) + { + case line_split_kind::same_line: + if (column_ >= options_.line_length_limit()) + { + //stack_.back().new_line_after(true); + new_line(); + } + break; + case line_split_kind::new_line: + stack_.back().new_line_after(true); + new_line(); + break; + default: // multi_line + stack_.back().new_line_after(true); + new_line(); + break; + } + stack_.emplace_back(container_type::object,options_.array_object_line_splits(), false, + column_, column_+open_object_brace_str_.length()); + } + } + else + { + stack_.emplace_back(container_type::object, line_split_kind::multi_line, false, + column_, column_+open_object_brace_str_.length()); + } + indent(); + + sink_.append(open_object_brace_str_.data(), open_object_brace_str_.length()); + column_ += open_object_brace_str_.length(); + return true; + } + + bool visit_end_object(const ser_context&, std::error_code&) override + { + JSONCONS_ASSERT(!stack_.empty()); + --nesting_depth_; + + unindent(); + if (stack_.back().new_line_after()) + { + new_line(); + } + stack_.pop_back(); + sink_.append(close_object_brace_str_.data(), close_object_brace_str_.length()); + column_ += close_object_brace_str_.length(); + + end_value(); + return true; + } + + bool visit_begin_array(semantic_tag, const ser_context&, std::error_code& ec) override + { + if (JSONCONS_UNLIKELY(++nesting_depth_ > options_.max_nesting_depth())) + { + ec = json_errc::max_nesting_depth_exceeded; + return false; + } + if (!stack_.empty() && stack_.back().is_array() && stack_.back().count() > 0) + { + sink_.append(comma_str_.data(),comma_str_.length()); + column_ += comma_str_.length(); + } + if (!stack_.empty()) + { + if (stack_.back().is_object()) + { + switch (options_.object_array_line_splits()) + { + case line_split_kind::same_line: + stack_.emplace_back(container_type::array,options_.object_array_line_splits(),false, + column_, column_ + open_array_bracket_str_.length()); + break; + case line_split_kind::new_line: + { + stack_.emplace_back(container_type::array,options_.object_array_line_splits(),true, + column_, column_+open_array_bracket_str_.length()); + break; + } + default: // multi_line + stack_.emplace_back(container_type::array,options_.object_array_line_splits(),true, + column_, column_+open_array_bracket_str_.length()); + break; + } + } + else // array + { + switch (options_.array_array_line_splits()) + { + case line_split_kind::same_line: + if (stack_.back().is_multi_line()) + { + stack_.back().new_line_after(true); + new_line(); + } + stack_.emplace_back(container_type::array,options_.array_array_line_splits(), false, + column_, column_+open_array_bracket_str_.length()); + break; + case line_split_kind::new_line: + stack_.back().new_line_after(true); + new_line(); + stack_.emplace_back(container_type::array,options_.array_array_line_splits(), false, + column_, column_+open_array_bracket_str_.length()); + break; + default: // multi_line + stack_.back().new_line_after(true); + new_line(); + stack_.emplace_back(container_type::array,options_.array_array_line_splits(), false, + column_, column_+open_array_bracket_str_.length()); + //new_line(); + break; + } + } + } + else + { + stack_.emplace_back(container_type::array, line_split_kind::multi_line, false, + column_, column_+open_array_bracket_str_.length()); + } + indent(); + sink_.append(open_array_bracket_str_.data(), open_array_bracket_str_.length()); + column_ += open_array_bracket_str_.length(); + return true; + } + + bool visit_end_array(const ser_context&, std::error_code&) override + { + JSONCONS_ASSERT(!stack_.empty()); + --nesting_depth_; + + unindent(); + if (stack_.back().new_line_after()) + { + new_line(); + } + stack_.pop_back(); + sink_.append(close_array_bracket_str_.data(), close_array_bracket_str_.length()); + column_ += close_array_bracket_str_.length(); + end_value(); + return true; + } + + bool visit_key(const string_view_type& name, const ser_context&, std::error_code&) override + { + JSONCONS_ASSERT(!stack_.empty()); + if (stack_.back().count() > 0) + { + sink_.append(comma_str_.data(),comma_str_.length()); + column_ += comma_str_.length(); + } + + if (stack_.back().is_multi_line()) + { + stack_.back().new_line_after(true); + new_line(); + } + else if (stack_.back().count() > 0 && column_ >= options_.line_length_limit()) + { + //stack_.back().new_line_after(true); + new_line(stack_.back().data_pos()); + } + + if (stack_.back().count() == 0) + { + stack_.back().set_position(column_); + } + sink_.push_back('\"'); + std::size_t length = jsoncons::detail::escape_string(name.data(), name.length(),options_.escape_all_non_ascii(),options_.escape_solidus(),sink_); + sink_.push_back('\"'); + sink_.append(colon_str_.data(),colon_str_.length()); + column_ += (length+2+colon_str_.length()); + return true; + } + + bool visit_null(semantic_tag, const ser_context&, std::error_code&) override + { + if (!stack_.empty()) + { + if (stack_.back().is_array()) + { + begin_scalar_value(); + } + if (!stack_.back().is_multi_line() && column_ >= options_.line_length_limit()) + { + break_line(); + } + } + + sink_.append(null_constant().data(), null_constant().size()); + column_ += null_constant().size(); + + end_value(); + return true; + } + + bool visit_string(const string_view_type& sv, semantic_tag tag, const ser_context&, std::error_code&) override + { + if (!stack_.empty()) + { + if (stack_.back().is_array()) + { + begin_scalar_value(); + } + if (!stack_.back().is_multi_line() && column_ >= options_.line_length_limit()) + { + break_line(); + } + } + + switch (tag) + { + case semantic_tag::bigint: + write_bigint_value(sv); + break; + default: + { + sink_.push_back('\"'); + std::size_t length = jsoncons::detail::escape_string(sv.data(), sv.length(),options_.escape_all_non_ascii(),options_.escape_solidus(),sink_); + sink_.push_back('\"'); + column_ += (length+2); + break; + } + } + + end_value(); + return true; + } + + bool visit_byte_string(const byte_string_view& b, + semantic_tag tag, + const ser_context&, + std::error_code&) override + { + if (!stack_.empty()) + { + if (stack_.back().is_array()) + { + begin_scalar_value(); + } + if (!stack_.back().is_multi_line() && column_ >= options_.line_length_limit()) + { + break_line(); + } + } + + byte_string_chars_format encoding_hint; + switch (tag) + { + case semantic_tag::base16: + encoding_hint = byte_string_chars_format::base16; + break; + case semantic_tag::base64: + encoding_hint = byte_string_chars_format::base64; + break; + case semantic_tag::base64url: + encoding_hint = byte_string_chars_format::base64url; + break; + default: + encoding_hint = byte_string_chars_format::none; + break; + } + + byte_string_chars_format format = jsoncons::detail::resolve_byte_string_chars_format(options_.byte_string_format(), + encoding_hint, + byte_string_chars_format::base64url); + switch (format) + { + case byte_string_chars_format::base16: + { + sink_.push_back('\"'); + std::size_t length = encode_base16(b.begin(),b.end(),sink_); + sink_.push_back('\"'); + column_ += (length + 2); + break; + } + case byte_string_chars_format::base64: + { + sink_.push_back('\"'); + std::size_t length = encode_base64(b.begin(), b.end(), sink_); + sink_.push_back('\"'); + column_ += (length + 2); + break; + } + case byte_string_chars_format::base64url: + { + sink_.push_back('\"'); + std::size_t length = encode_base64url(b.begin(),b.end(),sink_); + sink_.push_back('\"'); + column_ += (length + 2); + break; + } + default: + { + JSONCONS_UNREACHABLE(); + } + } + + end_value(); + return true; + } + + bool visit_double(double value, + semantic_tag, + const ser_context& context, + std::error_code& ec) override + { + if (!stack_.empty()) + { + if (stack_.back().is_array()) + { + begin_scalar_value(); + } + if (!stack_.back().is_multi_line() && column_ >= options_.line_length_limit()) + { + break_line(); + } + } + + if (!std::isfinite(value)) + { + if ((std::isnan)(value)) + { + if (options_.enable_nan_to_num()) + { + sink_.append(options_.nan_to_num().data(), options_.nan_to_num().length()); + column_ += options_.nan_to_num().length(); + } + else if (options_.enable_nan_to_str()) + { + visit_string(options_.nan_to_str(), semantic_tag::none, context, ec); + } + else + { + sink_.append(null_constant().data(), null_constant().size()); + column_ += null_constant().size(); + } + } + else if (value == std::numeric_limits::infinity()) + { + if (options_.enable_inf_to_num()) + { + sink_.append(options_.inf_to_num().data(), options_.inf_to_num().length()); + column_ += options_.inf_to_num().length(); + } + else if (options_.enable_inf_to_str()) + { + visit_string(options_.inf_to_str(), semantic_tag::none, context, ec); + } + else + { + sink_.append(null_constant().data(), null_constant().size()); + column_ += null_constant().size(); + } + } + else + { + if (options_.enable_neginf_to_num()) + { + sink_.append(options_.neginf_to_num().data(), options_.neginf_to_num().length()); + column_ += options_.neginf_to_num().length(); + } + else if (options_.enable_neginf_to_str()) + { + visit_string(options_.neginf_to_str(), semantic_tag::none, context, ec); + } + else + { + sink_.append(null_constant().data(), null_constant().size()); + column_ += null_constant().size(); + } + } + } + else + { + std::size_t length = fp_(value, sink_); + column_ += length; + } + + end_value(); + return true; + } + + bool visit_int64(int64_t value, + semantic_tag, + const ser_context&, + std::error_code&) override + { + if (!stack_.empty()) + { + if (stack_.back().is_array()) + { + begin_scalar_value(); + } + if (!stack_.back().is_multi_line() && column_ >= options_.line_length_limit()) + { + break_line(); + } + } + std::size_t length = jsoncons::detail::from_integer(value, sink_); + column_ += length; + end_value(); + return true; + } + + bool visit_uint64(uint64_t value, + semantic_tag, + const ser_context&, + std::error_code&) override + { + if (!stack_.empty()) + { + if (stack_.back().is_array()) + { + begin_scalar_value(); + } + if (!stack_.back().is_multi_line() && column_ >= options_.line_length_limit()) + { + break_line(); + } + } + std::size_t length = jsoncons::detail::from_integer(value, sink_); + column_ += length; + end_value(); + return true; + } + + bool visit_bool(bool value, semantic_tag, const ser_context&, std::error_code&) override + { + if (!stack_.empty()) + { + if (stack_.back().is_array()) + { + begin_scalar_value(); + } + if (!stack_.back().is_multi_line() && column_ >= options_.line_length_limit()) + { + break_line(); + } + } + + if (value) + { + sink_.append(true_constant().data(), true_constant().size()); + column_ += true_constant().size(); + } + else + { + sink_.append(false_constant().data(), false_constant().size()); + column_ += false_constant().size(); + } + + end_value(); + return true; + } + + void begin_scalar_value() + { + if (!stack_.empty()) + { + if (stack_.back().count() > 0) + { + sink_.append(comma_str_.data(),comma_str_.length()); + column_ += comma_str_.length(); + } + if (stack_.back().is_multi_line() || stack_.back().is_indent_once()) + { + stack_.back().new_line_after(true); + new_line(); + } + } + } + + void write_bigint_value(const string_view_type& sv) + { + switch (options_.bigint_format()) + { + case bigint_chars_format::number: + { + sink_.append(sv.data(),sv.size()); + column_ += sv.size(); + break; + } + case bigint_chars_format::base64: + { + bigint n = bigint::from_string(sv.data(), sv.length()); + bool is_neg = n < 0; + if (is_neg) + { + n = - n -1; + } + int signum; + std::vector v; + n.write_bytes_be(signum, v); + + sink_.push_back('\"'); + if (is_neg) + { + sink_.push_back('~'); + ++column_; + } + std::size_t length = encode_base64(v.begin(), v.end(), sink_); + sink_.push_back('\"'); + column_ += (length+2); + break; + } + case bigint_chars_format::base64url: + { + bigint n = bigint::from_string(sv.data(), sv.length()); + bool is_neg = n < 0; + if (is_neg) + { + n = - n -1; + } + int signum; + std::vector v; + n.write_bytes_be(signum, v); + + sink_.push_back('\"'); + if (is_neg) + { + sink_.push_back('~'); + ++column_; + } + std::size_t length = encode_base64url(v.begin(), v.end(), sink_); + sink_.push_back('\"'); + column_ += (length+2); + break; + } + default: + { + sink_.push_back('\"'); + sink_.append(sv.data(),sv.size()); + sink_.push_back('\"'); + column_ += (sv.size() + 2); + break; + } + } + } + + void end_value() + { + if (!stack_.empty()) + { + stack_.back().increment_count(); + } + } + + void indent() + { + indent_amount_ += static_cast(options_.indent_size()); + } + + void unindent() + { + indent_amount_ -= static_cast(options_.indent_size()); + } + + void new_line() + { + sink_.append(options_.new_line_chars().data(),options_.new_line_chars().length()); + for (int i = 0; i < indent_amount_; ++i) + { + sink_.push_back(' '); + } + column_ = indent_amount_; + } + + void new_line(std::size_t len) + { + sink_.append(options_.new_line_chars().data(),options_.new_line_chars().length()); + for (std::size_t i = 0; i < len; ++i) + { + sink_.push_back(' '); + } + column_ = len; + } + + void break_line() + { + stack_.back().new_line_after(true); + new_line(); + } + }; + + template,class Allocator=std::allocator> + class basic_compact_json_encoder final : public basic_json_visitor + { + static const std::array& null_constant() + { + static constexpr std::array k{'n','u','l','l'}; + return k; + } + static const std::array& true_constant() + { + static constexpr std::array k{'t','r','u','e'}; + return k; + } + static const std::array& false_constant() + { + static constexpr std::array k{'f','a','l','s','e'}; + return k; + } + public: + using allocator_type = Allocator; + using char_type = CharT; + using typename basic_json_visitor::string_view_type; + using sink_type = Sink; + using string_type = typename basic_json_encode_options::string_type; + + private: + enum class container_type {object, array}; + + class encoding_context + { + container_type type_; + std::size_t count_; + public: + encoding_context(container_type type) noexcept + : type_(type), count_(0) + { + } + + std::size_t count() const + { + return count_; + } + + void increment_count() + { + ++count_; + } + + bool is_array() const + { + return type_ == container_type::array; + } + }; + typedef typename std::allocator_traits:: template rebind_alloc encoding_context_allocator_type; + + Sink sink_; + basic_json_encode_options options_; + jsoncons::detail::write_double fp_; + std::vector stack_; + int nesting_depth_; + + // Noncopyable + basic_compact_json_encoder(const basic_compact_json_encoder&) = delete; + basic_compact_json_encoder& operator=(const basic_compact_json_encoder&) = delete; + public: + basic_compact_json_encoder(Sink&& sink, + const Allocator& alloc = Allocator()) + : basic_compact_json_encoder(std::forward(sink), basic_json_encode_options(), alloc) + { + } + + basic_compact_json_encoder(Sink&& sink, + const basic_json_encode_options& options, + const Allocator& alloc = Allocator()) + : sink_(std::forward(sink)), + options_(options), + fp_(options.float_format(), options.precision()), + stack_(alloc), + nesting_depth_(0) + { + } + + basic_compact_json_encoder(basic_compact_json_encoder&&) = default; + basic_compact_json_encoder& operator=(basic_compact_json_encoder&&) = default; + + ~basic_compact_json_encoder() noexcept + { + JSONCONS_TRY + { + sink_.flush(); + } + JSONCONS_CATCH(...) + { + } + } + + void reset() + { + stack_.clear(); + nesting_depth_ = 0; + } + + void reset(Sink&& sink) + { + sink_ = std::move(sink); + reset(); + } + + private: + // Implementing methods + void visit_flush() override + { + sink_.flush(); + } + + bool visit_begin_object(semantic_tag, const ser_context&, std::error_code& ec) override + { + if (JSONCONS_UNLIKELY(++nesting_depth_ > options_.max_nesting_depth())) + { + ec = json_errc::max_nesting_depth_exceeded; + return false; + } + if (!stack_.empty() && stack_.back().is_array() && stack_.back().count() > 0) + { + sink_.push_back(','); + } + + stack_.emplace_back(container_type::object); + sink_.push_back('{'); + return true; + } + + bool visit_end_object(const ser_context&, std::error_code&) override + { + JSONCONS_ASSERT(!stack_.empty()); + --nesting_depth_; + + stack_.pop_back(); + sink_.push_back('}'); + + if (!stack_.empty()) + { + stack_.back().increment_count(); + } + return true; + } + + + bool visit_begin_array(semantic_tag, const ser_context&, std::error_code& ec) override + { + if (JSONCONS_UNLIKELY(++nesting_depth_ > options_.max_nesting_depth())) + { + ec = json_errc::max_nesting_depth_exceeded; + return false; + } + if (!stack_.empty() && stack_.back().is_array() && stack_.back().count() > 0) + { + sink_.push_back(','); + } + stack_.emplace_back(container_type::array); + sink_.push_back('['); + return true; + } + + bool visit_end_array(const ser_context&, std::error_code&) override + { + JSONCONS_ASSERT(!stack_.empty()); + --nesting_depth_; + + stack_.pop_back(); + sink_.push_back(']'); + if (!stack_.empty()) + { + stack_.back().increment_count(); + } + return true; + } + + bool visit_key(const string_view_type& name, const ser_context&, std::error_code&) override + { + if (!stack_.empty() && stack_.back().count() > 0) + { + sink_.push_back(','); + } + + sink_.push_back('\"'); + jsoncons::detail::escape_string(name.data(), name.length(),options_.escape_all_non_ascii(),options_.escape_solidus(),sink_); + sink_.push_back('\"'); + sink_.push_back(':'); + return true; + } + + bool visit_null(semantic_tag, const ser_context&, std::error_code&) override + { + if (!stack_.empty() && stack_.back().is_array() && stack_.back().count() > 0) + { + sink_.push_back(','); + } + + sink_.append(null_constant().data(), null_constant().size()); + + if (!stack_.empty()) + { + stack_.back().increment_count(); + } + return true; + } + + void write_bigint_value(const string_view_type& sv) + { + switch (options_.bigint_format()) + { + case bigint_chars_format::number: + { + sink_.append(sv.data(),sv.size()); + break; + } + case bigint_chars_format::base64: + { + bigint n = bigint::from_string(sv.data(), sv.length()); + bool is_neg = n < 0; + if (is_neg) + { + n = - n -1; + } + int signum; + std::vector v; + n.write_bytes_be(signum, v); + + sink_.push_back('\"'); + if (is_neg) + { + sink_.push_back('~'); + } + encode_base64(v.begin(), v.end(), sink_); + sink_.push_back('\"'); + break; + } + case bigint_chars_format::base64url: + { + bigint n = bigint::from_string(sv.data(), sv.length()); + bool is_neg = n < 0; + if (is_neg) + { + n = - n -1; + } + int signum; + std::vector v; + n.write_bytes_be(signum, v); + + sink_.push_back('\"'); + if (is_neg) + { + sink_.push_back('~'); + } + encode_base64url(v.begin(), v.end(), sink_); + sink_.push_back('\"'); + break; + } + default: + { + sink_.push_back('\"'); + sink_.append(sv.data(),sv.size()); + sink_.push_back('\"'); + break; + } + } + } + + bool visit_string(const string_view_type& sv, semantic_tag tag, const ser_context&, std::error_code&) override + { + if (!stack_.empty() && stack_.back().is_array() && stack_.back().count() > 0) + { + sink_.push_back(','); + } + + switch (tag) + { + case semantic_tag::bigint: + write_bigint_value(sv); + break; + default: + { + sink_.push_back('\"'); + jsoncons::detail::escape_string(sv.data(), sv.length(),options_.escape_all_non_ascii(),options_.escape_solidus(),sink_); + sink_.push_back('\"'); + break; + } + } + + if (!stack_.empty()) + { + stack_.back().increment_count(); + } + return true; + } + + bool visit_byte_string(const byte_string_view& b, + semantic_tag tag, + const ser_context&, + std::error_code&) override + { + if (!stack_.empty() && stack_.back().is_array() && stack_.back().count() > 0) + { + sink_.push_back(','); + } + + byte_string_chars_format encoding_hint; + switch (tag) + { + case semantic_tag::base16: + encoding_hint = byte_string_chars_format::base16; + break; + case semantic_tag::base64: + encoding_hint = byte_string_chars_format::base64; + break; + case semantic_tag::base64url: + encoding_hint = byte_string_chars_format::base64url; + break; + default: + encoding_hint = byte_string_chars_format::none; + break; + } + + byte_string_chars_format format = jsoncons::detail::resolve_byte_string_chars_format(options_.byte_string_format(), + encoding_hint, + byte_string_chars_format::base64url); + switch (format) + { + case byte_string_chars_format::base16: + { + sink_.push_back('\"'); + encode_base16(b.begin(),b.end(),sink_); + sink_.push_back('\"'); + break; + } + case byte_string_chars_format::base64: + { + sink_.push_back('\"'); + encode_base64(b.begin(), b.end(), sink_); + sink_.push_back('\"'); + break; + } + case byte_string_chars_format::base64url: + { + sink_.push_back('\"'); + encode_base64url(b.begin(),b.end(),sink_); + sink_.push_back('\"'); + break; + } + default: + { + JSONCONS_UNREACHABLE(); + } + } + + if (!stack_.empty()) + { + stack_.back().increment_count(); + } + return true; + } + + bool visit_double(double value, + semantic_tag, + const ser_context& context, + std::error_code& ec) override + { + if (!stack_.empty() && stack_.back().is_array() && stack_.back().count() > 0) + { + sink_.push_back(','); + } + + if (JSONCONS_UNLIKELY(!std::isfinite(value))) + { + if ((std::isnan)(value)) + { + if (options_.enable_nan_to_num()) + { + sink_.append(options_.nan_to_num().data(), options_.nan_to_num().length()); + } + else if (options_.enable_nan_to_str()) + { + visit_string(options_.nan_to_str(), semantic_tag::none, context, ec); + } + else + { + sink_.append(null_constant().data(), null_constant().size()); + } + } + else if (value == std::numeric_limits::infinity()) + { + if (options_.enable_inf_to_num()) + { + sink_.append(options_.inf_to_num().data(), options_.inf_to_num().length()); + } + else if (options_.enable_inf_to_str()) + { + visit_string(options_.inf_to_str(), semantic_tag::none, context, ec); + } + else + { + sink_.append(null_constant().data(), null_constant().size()); + } + } + else + { + if (options_.enable_neginf_to_num()) + { + sink_.append(options_.neginf_to_num().data(), options_.neginf_to_num().length()); + } + else if (options_.enable_neginf_to_str()) + { + visit_string(options_.neginf_to_str(), semantic_tag::none, context, ec); + } + else + { + sink_.append(null_constant().data(), null_constant().size()); + } + } + } + else + { + fp_(value, sink_); + } + + if (!stack_.empty()) + { + stack_.back().increment_count(); + } + return true; + } + + bool visit_int64(int64_t value, + semantic_tag, + const ser_context&, + std::error_code&) override + { + if (!stack_.empty() && stack_.back().is_array() && stack_.back().count() > 0) + { + sink_.push_back(','); + } + jsoncons::detail::from_integer(value, sink_); + if (!stack_.empty()) + { + stack_.back().increment_count(); + } + return true; + } + + bool visit_uint64(uint64_t value, + semantic_tag, + const ser_context&, + std::error_code&) override + { + if (!stack_.empty() && stack_.back().is_array() && stack_.back().count() > 0) + { + sink_.push_back(','); + } + jsoncons::detail::from_integer(value, sink_); + if (!stack_.empty()) + { + stack_.back().increment_count(); + } + return true; + } + + bool visit_bool(bool value, semantic_tag, const ser_context&, std::error_code&) override + { + if (!stack_.empty() && stack_.back().is_array() && stack_.back().count() > 0) + { + sink_.push_back(','); + } + + if (value) + { + sink_.append(true_constant().data(), true_constant().size()); + } + else + { + sink_.append(false_constant().data(), false_constant().size()); + } + + if (!stack_.empty()) + { + stack_.back().increment_count(); + } + return true; + } + }; + + using json_stream_encoder = basic_json_encoder>; + using wjson_stream_encoder = basic_json_encoder>; + using compact_json_stream_encoder = basic_compact_json_encoder>; + using compact_wjson_stream_encoder = basic_compact_json_encoder>; + + using json_string_encoder = basic_json_encoder>; + using wjson_string_encoder = basic_json_encoder>; + using compact_json_string_encoder = basic_compact_json_encoder>; + using compact_wjson_string_encoder = basic_compact_json_encoder>; + + #if !defined(JSONCONS_NO_DEPRECATED) + template> + using basic_json_serializer = basic_json_encoder; + + template> + using basic_json_compressed_serializer = basic_compact_json_encoder; + + template> + using basic_json_compressed_encoder = basic_compact_json_encoder; + + JSONCONS_DEPRECATED_MSG("Instead, use compact_json_stream_encoder") typedef basic_compact_json_encoder> json_compressed_stream_encoder; + JSONCONS_DEPRECATED_MSG("Instead, use compact_wjson_stream_encoder")typedef basic_compact_json_encoder> wjson_compressed_stream_encoder; + JSONCONS_DEPRECATED_MSG("Instead, use compact_json_string_encoder") typedef basic_compact_json_encoder> json_compressed_string_encoder; + JSONCONS_DEPRECATED_MSG("Instead, use compact_wjson_string_encoder")typedef basic_compact_json_encoder> wjson_compressed_string_encoder; + + JSONCONS_DEPRECATED_MSG("Instead, use json_stream_encoder") typedef json_stream_encoder json_encoder; + JSONCONS_DEPRECATED_MSG("Instead, use wjson_stream_encoder") typedef wjson_stream_encoder wjson_encoder; + JSONCONS_DEPRECATED_MSG("Instead, use compact_json_stream_encoder") typedef compact_json_stream_encoder compact_json_encoder; + JSONCONS_DEPRECATED_MSG("Instead, use compact_wjson_stream_encoder") typedef compact_wjson_stream_encoder wcompact_json_encoder; + + JSONCONS_DEPRECATED_MSG("Instead, use json_stream_encoder") typedef basic_json_encoder> json_serializer; + JSONCONS_DEPRECATED_MSG("Instead, use wjson_stream_encoder") typedef basic_json_encoder> wjson_serializer; + + JSONCONS_DEPRECATED_MSG("Instead, use compact_json_stream_encoder") typedef basic_compact_json_encoder> json_compressed_serializer; + JSONCONS_DEPRECATED_MSG("Instead, use compact_wjson_stream_encoder") typedef basic_compact_json_encoder> wjson_compressed_serializer; + + JSONCONS_DEPRECATED_MSG("Instead, use json_string_encoder") typedef basic_json_encoder> json_string_serializer; + JSONCONS_DEPRECATED_MSG("Instead, use wjson_string_encoder") typedef basic_json_encoder> wjson_string_serializer; + + JSONCONS_DEPRECATED_MSG("Instead, use compact_json_string_encoder") typedef basic_compact_json_encoder> json_compressed_string_serializer; + JSONCONS_DEPRECATED_MSG("Instead, use wcompact_json_string_encoder") typedef basic_compact_json_encoder> wjson_compressed_string_serializer; + #endif + +} // namespace jsoncons + +#endif diff --git a/include/jsoncons/json_error.hpp b/include/jsoncons/json_error.hpp new file mode 100644 index 0000000..f305948 --- /dev/null +++ b/include/jsoncons/json_error.hpp @@ -0,0 +1,156 @@ +/// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSON_ERROR_HPP +#define JSONCONS_JSON_ERROR_HPP + +#include +#include + +namespace jsoncons { + + enum class json_errc + { + success = 0, + unexpected_eof = 1, + source_error, + syntax_error, + extra_character, + max_nesting_depth_exceeded, + single_quote, + illegal_character_in_string, + extra_comma, + expected_key, + expected_value, + invalid_value, + expected_colon, + illegal_control_character, + illegal_escaped_character, + expected_codepoint_surrogate_pair, + invalid_hex_escape_sequence, + invalid_unicode_escape_sequence, + leading_zero, + invalid_number, + expected_comma_or_rbrace, + expected_comma_or_rbracket, + unexpected_rbracket, + unexpected_rbrace, + illegal_comment, + expected_continuation_byte, + over_long_utf8_sequence, + illegal_codepoint, + illegal_surrogate_value, + unpaired_high_surrogate, + illegal_unicode_character + }; + + class json_error_category_impl + : public std::error_category + { + public: + const char* name() const noexcept override + { + return "jsoncons/json"; + } + std::string message(int ev) const override + { + switch (static_cast(ev)) + { + case json_errc::unexpected_eof: + return "Unexpected end of file"; + case json_errc::source_error: + return "Source error"; + case json_errc::syntax_error: + return "JSON syntax_error"; + case json_errc::extra_character: + return "Unexpected non-whitespace character after JSON text"; + case json_errc::max_nesting_depth_exceeded: + return "Data item nesting exceeds limit in options"; + case json_errc::single_quote: + return "JSON strings cannot be quoted with single quotes"; + case json_errc::illegal_character_in_string: + return "Illegal character in string"; + case json_errc::extra_comma: + return "Extra comma"; + case json_errc::expected_key: + return "Expected object member key"; + case json_errc::expected_value: + return "Expected value"; + case json_errc::invalid_value: + return "Invalid value"; + case json_errc::expected_colon: + return "Expected name separator ':'"; + case json_errc::illegal_control_character: + return "Illegal control character in string"; + case json_errc::illegal_escaped_character: + return "Illegal escaped character in string"; + case json_errc::expected_codepoint_surrogate_pair: + return "Invalid codepoint, expected another \\u token to begin the second half of a codepoint surrogate pair."; + case json_errc::invalid_hex_escape_sequence: + return "Invalid codepoint, expected hexadecimal digit."; + case json_errc::invalid_unicode_escape_sequence: + return "Invalid codepoint, expected four hexadecimal digits."; + case json_errc::leading_zero: + return "A number cannot have a leading zero"; + case json_errc::invalid_number: + return "Invalid number"; + case json_errc::expected_comma_or_rbrace: + return "Expected comma or right brace '}'"; + case json_errc::expected_comma_or_rbracket: + return "Expected comma or right bracket ']'"; + case json_errc::unexpected_rbrace: + return "Unexpected right brace '}'"; + case json_errc::unexpected_rbracket: + return "Unexpected right bracket ']'"; + case json_errc::illegal_comment: + return "Illegal comment"; + case json_errc::expected_continuation_byte: + return "Expected continuation byte"; + case json_errc::over_long_utf8_sequence: + return "Over long UTF-8 sequence"; + case json_errc::illegal_codepoint: + return "Illegal codepoint (>= 0xd800 && <= 0xdfff)"; + case json_errc::illegal_surrogate_value: + return "UTF-16 surrogate values are illegal in UTF-32"; + case json_errc::unpaired_high_surrogate: + return "Expected low surrogate following the high surrogate"; + case json_errc::illegal_unicode_character: + return "Illegal unicode character"; + default: + return "Unknown JSON parser error"; + } + } + }; + + inline + const std::error_category& json_error_category() + { + static json_error_category_impl instance; + return instance; + } + + inline + std::error_code make_error_code(json_errc result) + { + return std::error_code(static_cast(result),json_error_category()); + } + +#if !defined(JSONCONS_NO_DEPRECATED) +JSONCONS_DEPRECATED_MSG("Instead, use json_errc") typedef json_errc json_parser_errc; + +JSONCONS_DEPRECATED_MSG("Instead, use json_errc") typedef json_errc json_parse_errc; +#endif + +} // jsoncons + +namespace std { + template<> + struct is_error_code_enum : public true_type + { + }; +} + +#endif diff --git a/include/jsoncons/json_exception.hpp b/include/jsoncons/json_exception.hpp new file mode 100644 index 0000000..e25d401 --- /dev/null +++ b/include/jsoncons/json_exception.hpp @@ -0,0 +1,241 @@ +// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSON_EXCEPTION_HPP +#define JSON_EXCEPTION_HPP + +#include // std::string +#include // std::ostringstream +#include // std::error_code +#include // unicode_traits::convert +#include +#include + +namespace jsoncons { + + // json_exception + + class json_exception + { + public: + virtual ~json_exception() noexcept = default; + virtual const char* what() const noexcept = 0; + }; + + // json_runtime_error + + template + class json_runtime_error + { + }; + + template + class json_runtime_error::value && + type_traits::is_constructible_from_string::value>::type> + : public Base, public virtual json_exception + { + public: + json_runtime_error(const std::string& s) noexcept + : Base(s) + { + } + ~json_runtime_error() noexcept + { + } + const char* what() const noexcept override + { + return Base::what(); + } + }; + + class key_not_found : public std::out_of_range, public virtual json_exception + { + std::string name_; + mutable std::string what_; + public: + template + explicit key_not_found(const CharT* key, std::size_t length) noexcept + : std::out_of_range("Key not found") + { + JSONCONS_TRY + { + unicode_traits::convert(key, length, name_, + unicode_traits::conv_flags::strict); + } + JSONCONS_CATCH(...) + { + } + } + + virtual ~key_not_found() noexcept + { + } + + const char* what() const noexcept override + { + if (what_.empty()) + { + JSONCONS_TRY + { + what_.append(std::out_of_range::what()); + what_.append(": '"); + what_.append(name_); + what_.append("'"); + return what_.c_str(); + } + JSONCONS_CATCH(...) + { + return std::out_of_range::what(); + } + } + else + { + return what_.c_str(); + } + } + }; + + class not_an_object : public std::runtime_error, public virtual json_exception + { + std::string name_; + mutable std::string what_; + public: + template + explicit not_an_object(const CharT* key, std::size_t length) noexcept + : std::runtime_error("Attempting to access a member of a value that is not an object") + { + JSONCONS_TRY + { + unicode_traits::convert(key, length, name_, + unicode_traits::conv_flags::strict); + } + JSONCONS_CATCH(...) + { + } + } + + virtual ~not_an_object() noexcept + { + } + const char* what() const noexcept override + { + if (what_.empty()) + { + JSONCONS_TRY + { + what_.append(std::runtime_error::what()); + what_.append(": '"); + what_.append(name_); + what_.append("'"); + return what_.c_str(); + } + JSONCONS_CATCH(...) + { + return std::runtime_error::what(); + } + } + else + { + return what_.c_str(); + } + } + }; + + class ser_error : public std::system_error, public virtual json_exception + { + std::size_t line_number_; + std::size_t column_number_; + mutable std::string what_; + public: + ser_error(std::error_code ec) + : std::system_error(ec), line_number_(0), column_number_(0) + { + } + ser_error(std::error_code ec, const std::string& what_arg) + : std::system_error(ec, what_arg), line_number_(0), column_number_(0) + { + } + ser_error(std::error_code ec, std::size_t position) + : std::system_error(ec), line_number_(0), column_number_(position) + { + } + ser_error(std::error_code ec, std::size_t line, std::size_t column) + : std::system_error(ec), line_number_(line), column_number_(column) + { + } + ser_error(const ser_error& other) = default; + + ser_error(ser_error&& other) = default; + + const char* what() const noexcept override + { + if (what_.empty()) + { + JSONCONS_TRY + { + what_.append(std::system_error::what()); + if (line_number_ != 0 && column_number_ != 0) + { + what_.append(" at line "); + what_.append(std::to_string(line_number_)); + what_.append(" and column "); + what_.append(std::to_string(column_number_)); + } + else if (column_number_ != 0) + { + what_.append(" at position "); + what_.append(std::to_string(column_number_)); + } + return what_.c_str(); + } + JSONCONS_CATCH(...) + { + return std::system_error::what(); + } + } + else + { + return what_.c_str(); + } + } + + std::size_t line() const noexcept + { + return line_number_; + } + + std::size_t column() const noexcept + { + return column_number_; + } + + #if !defined(JSONCONS_NO_DEPRECATED) + JSONCONS_DEPRECATED_MSG("Instead, use line()") + std::size_t line_number() const noexcept + { + return line(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use column()") + std::size_t column_number() const noexcept + { + return column(); + } + #endif + }; + +#if !defined(JSONCONS_NO_DEPRECATED) +JSONCONS_DEPRECATED_MSG("Instead, use ser_error") typedef ser_error serialization_error; +JSONCONS_DEPRECATED_MSG("Instead, use ser_error") typedef ser_error json_parse_exception; +JSONCONS_DEPRECATED_MSG("Instead, use ser_error") typedef ser_error parse_exception; +JSONCONS_DEPRECATED_MSG("Instead, use ser_error") typedef ser_error parse_error; +typedef ser_error codec_error; +#endif + +} // namespace jsoncons + +#endif diff --git a/include/jsoncons/json_filter.hpp b/include/jsoncons/json_filter.hpp new file mode 100644 index 0000000..cc93c73 --- /dev/null +++ b/include/jsoncons/json_filter.hpp @@ -0,0 +1,653 @@ +// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSON_FILTER_HPP +#define JSONCONS_JSON_FILTER_HPP + +#include + +#include + +namespace jsoncons { + +template +class basic_json_filter : public basic_json_visitor +{ +public: + using typename basic_json_visitor::char_type; + using typename basic_json_visitor::string_view_type; +private: + basic_json_visitor* destination_; + + // noncopyable + basic_json_filter(const basic_json_filter&) = delete; + basic_json_filter& operator=(const basic_json_filter&) = delete; +public: + basic_json_filter(basic_json_visitor& visitor) + : destination_(std::addressof(visitor)) + { + } + + // moveable + basic_json_filter(basic_json_filter&&) = default; + basic_json_filter& operator=(basic_json_filter&&) = default; + + basic_json_visitor& destination() + { + return *destination_; + } + +#if !defined(JSONCONS_NO_DEPRECATED) + + JSONCONS_DEPRECATED_MSG("Instead, use destination()") + basic_json_visitor& to_handler() + { + return destination_; + } + JSONCONS_DEPRECATED_MSG("Instead, use destination") + basic_json_visitor& input_handler() + { + return destination_; + } + + JSONCONS_DEPRECATED_MSG("Instead, use destination") + basic_json_visitor& downstream_handler() + { + return destination_; + } + + JSONCONS_DEPRECATED_MSG("Instead, use destination") + basic_json_visitor& destination_handler() + { + return destination_; + } +#endif + +private: + void visit_flush() override + { + destination_->flush(); + } + + bool visit_begin_object(semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + return destination_->begin_object(tag, context, ec); + } + + bool visit_begin_object(std::size_t length, semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + return destination_->begin_object(length, tag, context, ec); + } + + bool visit_end_object(const ser_context& context, std::error_code& ec) override + { + return destination_->end_object(context, ec); + } + + bool visit_begin_array(semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + return destination_->begin_array(tag, context, ec); + } + + bool visit_begin_array(std::size_t length, semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + return destination_->begin_array(length, tag, context, ec); + } + + bool visit_end_array(const ser_context& context, std::error_code& ec) override + { + return destination_->end_array(context, ec); + } + + bool visit_key(const string_view_type& name, + const ser_context& context, + std::error_code& ec) override + { + return destination_->key(name, context, ec); + } + + bool visit_string(const string_view_type& value, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + return destination_->string_value(value, tag, context, ec); + } + + bool visit_byte_string(const byte_string_view& b, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + return destination_->byte_string_value(b, tag, context, ec); + } + + bool visit_byte_string(const byte_string_view& b, + uint64_t ext_tag, + const ser_context& context, + std::error_code& ec) override + { + return destination_->byte_string_value(b, ext_tag, context, ec); + } + + bool visit_uint64(uint64_t value, semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + return destination_->uint64_value(value, tag, context, ec); + } + + bool visit_int64(int64_t value, semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + return destination_->int64_value(value, tag, context, ec); + } + + bool visit_half(uint16_t value, semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + return destination_->half_value(value, tag, context, ec); + } + + bool visit_double(double value, semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + return destination_->double_value(value, tag, context, ec); + } + + bool visit_bool(bool value, semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + return destination_->bool_value(value, tag, context, ec); + } + + bool visit_null(semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + return destination_->null_value(tag, context, ec); + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + return destination_->typed_array(s, tag, context, ec); + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + return destination_->typed_array(s, tag, context, ec); + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + return destination_->typed_array(s, tag, context, ec); + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + return destination_->typed_array(s, tag, context, ec); + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + return destination_->typed_array(s, tag, context, ec); + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + return destination_->typed_array(s, tag, context, ec); + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + return destination_->typed_array(s, tag, context, ec); + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + return destination_->typed_array(s, tag, context, ec); + } + + bool visit_typed_array(half_arg_t, + const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + return destination_->typed_array(half_arg, s, tag, context, ec); + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + return destination_->typed_array(s, tag, context, ec); + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + return destination_->typed_array(s, tag, context, ec); + } + + bool visit_begin_multi_dim(const jsoncons::span& shape, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + return destination_->begin_multi_dim(shape, tag, context, ec); + } + + bool visit_end_multi_dim(const ser_context& context, + std::error_code& ec) override + { + return destination_->end_multi_dim(context, ec); + } +}; + +template +class basic_rename_object_key_filter : public basic_json_filter +{ +public: + using typename basic_json_filter::string_view_type; + +private: + std::basic_string name_; + std::basic_string new_name_; +public: + basic_rename_object_key_filter(const std::basic_string& name, + const std::basic_string& new_name, + basic_json_visitor& visitor) + : basic_json_filter(visitor), + name_(name), new_name_(new_name) + { + } + +private: + bool visit_key(const string_view_type& name, + const ser_context& context, + std::error_code& ec) override + { + if (name == name_) + { + return this->destination().key(new_name_,context, ec); + } + else + { + return this->destination().key(name,context,ec); + } + } +}; + +template +class json_visitor_adaptor_base : public From +{ +public: + using typename From::string_view_type; +private: + To* destination_; + + // noncopyable + json_visitor_adaptor_base(const json_visitor_adaptor_base&) = delete; + json_visitor_adaptor_base& operator=(const json_visitor_adaptor_base&) = delete; +public: + json_visitor_adaptor_base(To& visitor) + : destination_(std::addressof(visitor)) + { + } + + // moveable + json_visitor_adaptor_base(json_visitor_adaptor_base&&) = default; + json_visitor_adaptor_base& operator=(json_visitor_adaptor_base&&) = default; + + To& destination() + { + return *destination_; + } + +private: + void visit_flush() override + { + destination_->flush(); + } + + bool visit_begin_object(semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + return destination_->begin_object(tag, context, ec); + } + + bool visit_begin_object(std::size_t length, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + return destination_->begin_object(length, tag, context, ec); + } + + bool visit_end_object(const ser_context& context, std::error_code& ec) override + { + return destination_->end_object(context, ec); + } + + bool visit_begin_array(semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + return destination_->begin_array(tag, context, ec); + } + + bool visit_begin_array(std::size_t length, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + return destination_->begin_array(length, tag, context, ec); + } + + bool visit_end_array(const ser_context& context, std::error_code& ec) override + { + return destination_->end_array(context, ec); + } + + bool visit_byte_string(const byte_string_view& b, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + return destination_->byte_string_value(b, tag, context, ec); + } + + bool visit_byte_string(const byte_string_view& b, + uint64_t ext_tag, + const ser_context& context, + std::error_code& ec) override + { + return destination_->byte_string_value(b, ext_tag, context, ec); + } + + bool visit_half(uint16_t value, semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + return destination_->half_value(value, tag, context, ec); + } + + bool visit_double(double value, semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + return destination_->double_value(value, tag, context, ec); + } + + bool visit_int64(int64_t value, semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + return destination_->int64_value(value, tag, context, ec); + } + + bool visit_uint64(uint64_t value, semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + return destination_->uint64_value(value, tag, context, ec); + } + + bool visit_bool(bool value, semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + return destination_->bool_value(value, tag, context, ec); + } + + bool visit_null(semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + return destination_->null_value(tag, context, ec); + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + return destination_->typed_array(s, tag, context, ec); + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + return destination_->typed_array(s, tag, context, ec); + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + return destination_->typed_array(s, tag, context, ec); + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + return destination_->typed_array(s, tag, context, ec); + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + return destination_->typed_array(s, tag, context, ec); + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + return destination_->typed_array(s, tag, context, ec); + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + return destination_->typed_array(s, tag, context, ec); + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + return destination_->typed_array(s, tag, context, ec); + } + + bool visit_typed_array(half_arg_t, + const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + return destination_->typed_array(half_arg, s, tag, context, ec); + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + return destination_->typed_array(s, tag, context, ec); + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + return destination_->typed_array(s, tag, context, ec); + } + + bool visit_begin_multi_dim(const jsoncons::span& shape, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + return destination_->begin_multi_dim(shape, tag, context, ec); + } + + bool visit_end_multi_dim(const ser_context& context, + std::error_code& ec) override + { + return destination_->end_multi_dim(context, ec); + } + +}; + +template +class json_visitor_adaptor +{ +}; + +template +class json_visitor_adaptor::value && + type_traits::is_narrow_character::value>::type> : public json_visitor_adaptor_base +{ + using supertype = json_visitor_adaptor_base; + using to_char_type = typename To::char_type; + using from_char_type = typename From::char_type; +public: + using typename From::string_view_type; + using supertype::destination; +private: + + // noncopyable + json_visitor_adaptor(const json_visitor_adaptor&) = delete; + json_visitor_adaptor& operator=(const json_visitor_adaptor&) = delete; +public: + json_visitor_adaptor(To& visitor) + : supertype(visitor) + { + } + + // moveable + json_visitor_adaptor(json_visitor_adaptor&&) = default; + json_visitor_adaptor& operator=(json_visitor_adaptor&&) = default; + +private: + + bool visit_key(const string_view_type& key, + const ser_context& context, + std::error_code& ec) override + { + return destination().key(string_view_type(reinterpret_cast(key.data()),key.size()), context, ec); + } + + bool visit_string(const string_view_type& value, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + return destination().string_value(string_view_type(reinterpret_cast(value.data()),value.size()), tag, context, ec); + } +}; + +template +class json_visitor_adaptor::value && + type_traits::is_narrow_character::value)>::type> : public json_visitor_adaptor_base +{ + using supertype = json_visitor_adaptor_base; +public: + using typename From::string_view_type; + using supertype::destination; +private: + + // noncopyable + json_visitor_adaptor(const json_visitor_adaptor&) = delete; + json_visitor_adaptor& operator=(const json_visitor_adaptor&) = delete; +public: + json_visitor_adaptor(To& visitor) + : supertype(visitor) + { + } + + // moveable + json_visitor_adaptor(json_visitor_adaptor&&) = default; + json_visitor_adaptor& operator=(json_visitor_adaptor&&) = default; + +private: + + bool visit_key(const string_view_type& name, + const ser_context& context, + std::error_code& ec) override + { + std::basic_string target; + auto result = unicode_traits::convert(name.data(), name.size(), target, unicode_traits::conv_flags::strict); + if (result.ec != unicode_traits::conv_errc()) + { + ec = result.ec; + } + return destination().key(target, context, ec); + } + + bool visit_string(const string_view_type& value, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + std::basic_string target; + auto result = unicode_traits::convert(value.data(), value.size(), + target,unicode_traits::conv_flags::strict); + if (result.ec != unicode_traits::conv_errc()) + { + JSONCONS_THROW(ser_error(result.ec)); + } + return destination().string_value(target, tag, context, ec); + } +}; + +template +json_visitor_adaptor make_json_visitor_adaptor(To& to) +{ + return json_visitor_adaptor(to); +} + +using json_filter = basic_json_filter; +using wjson_filter = basic_json_filter; +using rename_object_key_filter = basic_rename_object_key_filter; +using wrename_object_key_filter = basic_rename_object_key_filter; + +#if !defined(JSONCONS_NO_DEPRECATED) +template +using basic_json_content_filter = basic_json_filter; +JSONCONS_DEPRECATED_MSG("Instead, use json_filter") typedef basic_json_filter json_content_filter; +JSONCONS_DEPRECATED_MSG("Instead, use wjson_filter") typedef basic_json_filter wjson_content_filter; +JSONCONS_DEPRECATED_MSG("Instead, use rename_object_key_filter") typedef basic_rename_object_key_filter rename_name_filter; +JSONCONS_DEPRECATED_MSG("Instead, use wrename_object_key_filter") typedef basic_rename_object_key_filter wrename_name_filter; +JSONCONS_DEPRECATED_MSG("Instead, use rename_object_key_filter") typedef basic_rename_object_key_filter rename_object_member_filter; +JSONCONS_DEPRECATED_MSG("Instead, use wrename_object_key_filter") typedef basic_rename_object_key_filter wrename_object_member_filter; +#endif + +} + +#endif diff --git a/include/jsoncons/json_fwd.hpp b/include/jsoncons/json_fwd.hpp new file mode 100644 index 0000000..d9b44cf --- /dev/null +++ b/include/jsoncons/json_fwd.hpp @@ -0,0 +1,23 @@ +// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSON_FWD_HPP +#define JSONCONS_JSON_FWD_HPP + +#include // std::allocator + +namespace jsoncons { + +struct sorted_policy; + +template > +class basic_json; + +} + +#endif diff --git a/include/jsoncons/json_object.hpp b/include/jsoncons/json_object.hpp new file mode 100644 index 0000000..76e2cd0 --- /dev/null +++ b/include/jsoncons/json_object.hpp @@ -0,0 +1,1772 @@ +// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSON_OBJECT_HPP +#define JSONCONS_JSON_OBJECT_HPP + +#include +#include +#include +#include +#include +#include // std::sort, std::stable_sort, std::lower_bound, std::unique +#include +#include +#include // std::iterator_traits +#include // std::allocator +#include // std::move +#include // assert +#include // std::enable_if +#include +#include +#include + +namespace jsoncons { + + struct sorted_unique_range_tag + { + explicit sorted_unique_range_tag() = default; + }; + + // key_value + + template + class key_value + { + public: + using key_type = KeyT; + using value_type = ValueT; + using allocator_type = typename ValueT::allocator_type; + using string_view_type = typename value_type::string_view_type; + private: + + key_type key_; + value_type value_; + public: + + key_value() noexcept + { + } + + key_value(const key_type& name, const value_type& val) + : key_(name), value_(val) + { + } + + key_value(const string_view_type& name) + : key_(name) + { + } + + template + key_value(const key_type& name, Args&& ... args) + : key_(name), value_(std::forward(args)...) + { + } + + template + key_value(key_type&& name, Args&& ... args) noexcept + : key_(std::forward(name)), value_(std::forward(args)...) + { + } + + key_value(const key_value& member) + : key_(member.key_), value_(member.value_) + { + } + + key_value(key_value&& member) noexcept + : key_(std::move(member.key_)), value_(std::move(member.value_)) + { + } + template + JSONCONS_CONSTEXPR key_value(std::piecewise_construct_t /*unused*/, std::tuple a, + std::tuple + b) noexcept(noexcept(key_value(std::declval&>(), + std::declval&>(), + jsoncons::type_traits::index_sequence_for(), + jsoncons::type_traits::index_sequence_for()))) + : key_value(a, b, jsoncons::type_traits::index_sequence_for(), + jsoncons::type_traits::index_sequence_for()) { + } + + template + key_value(std::tuple& a, std::tuple& b, jsoncons::type_traits::index_sequence /*unused*/, jsoncons::type_traits::index_sequence /*unused*/) noexcept( + noexcept(KeyT(std::forward(std::get( + std::declval&>()))...)) && noexcept(ValueT(std:: + forward(std::get( + std::declval&>()))...))) + : key_(std::forward(std::get(a))...) + , value_(std::forward(std::get(b))...) { + // make visual studio compiler happy about warning about unused a & b. + // Visual studio's key_value implementation disables warning 4100. + (void)a; + (void)b; + } + + const key_type& key() const + { + return key_; + } + + value_type& value() + { + return value_; + } + + const value_type& value() const + { + return value_; + } + + template + void value(T&& value) + { + value_ = std::forward(value); + } + + void swap(key_value& member) noexcept + { + key_.swap(member.key_); + value_.swap(member.value_); + } + + key_value& operator=(const key_value& member) + { + if (this != & member) + { + key_ = member.key_; + value_ = member.value_; + } + return *this; + } + + key_value& operator=(key_value&& member) noexcept + { + if (this != &member) + { + key_.swap(member.key_); + value_.swap(member.value_); + } + return *this; + } + + void shrink_to_fit() + { + key_.shrink_to_fit(); + value_.shrink_to_fit(); + } + #if !defined(JSONCONS_NO_DEPRECATED) + JSONCONS_DEPRECATED_MSG("Instead, use key()") + const key_type& name() const + { + return key_; + } + #endif + + friend bool operator==(const key_value& lhs, const key_value& rhs) noexcept + { + return lhs.key_ == rhs.key_ && lhs.value_ == rhs.value_; + } + + friend bool operator!=(const key_value& lhs, const key_value& rhs) noexcept + { + return !(lhs == rhs); + } + + friend bool operator<(const key_value& lhs, const key_value& rhs) noexcept + { + if (lhs.key_ < rhs.key_) + { + return true; + } + if (lhs.key_ == rhs.key_ && lhs.value_ < rhs.value_) + { + return true; + } + return false; + } + + friend bool operator<=(const key_value& lhs, const key_value& rhs) noexcept + { + return !(rhs < lhs); + } + + friend bool operator>(const key_value& lhs, const key_value& rhs) noexcept + { + return !(lhs <= rhs); + } + + friend bool operator>=(const key_value& lhs, const key_value& rhs) noexcept + { + return !(lhs < rhs); + } + + friend void swap(key_value& a, key_value& b) noexcept( + noexcept(std::declval().swap(std::declval()))) + { + a.swap(b); + } + }; + + template + struct get_key_value + { + using key_value_type = key_value; + + template + key_value_type operator()(const std::pair& p) + { + return key_value_type(p.first,p.second); + } + template + key_value_type operator()(std::pair&& p) + { + return key_value_type(std::forward(p.first),std::forward(p.second)); + } + template + const key_value_type& operator()(const key_value& p) + { + return p; + } + template + key_value_type operator()(key_value&& p) + { + return std::move(p); + } + }; + + struct sort_key_order + { + explicit sort_key_order() = default; + }; + + struct preserve_key_order + { + explicit preserve_key_order() = default; + }; + + + // Sort keys + template class SequenceContainer = std::vector> + class sorted_json_object : public allocator_holder + { + public: + using allocator_type = typename Json::allocator_type; + using key_type = KeyT; + using key_value_type = key_value; + using char_type = typename Json::char_type; + using string_view_type = typename Json::string_view_type; + private: + struct Comp + { + bool operator() (const key_value_type& kv, string_view_type k) const { return kv.key() < k; } + bool operator() (string_view_type k, const key_value_type& kv) const { return k < kv.key(); } + }; + + using key_value_allocator_type = typename std::allocator_traits:: template rebind_alloc; + using key_value_container_type = SequenceContainer; + + key_value_container_type members_; + public: + using iterator = typename key_value_container_type::iterator; + using const_iterator = typename key_value_container_type::const_iterator; + + using allocator_holder::get_allocator; + + sorted_json_object() + { + } + + explicit sorted_json_object(const allocator_type& alloc) + : allocator_holder(alloc), + members_(key_value_allocator_type(alloc)) + { + } + + sorted_json_object(const sorted_json_object& val) + : allocator_holder(val.get_allocator()), + members_(val.members_) + { + } + + sorted_json_object(sorted_json_object&& val) + : allocator_holder(val.get_allocator()), + members_(std::move(val.members_)) + { + } + + sorted_json_object& operator=(const sorted_json_object& val) + { + allocator_holder::operator=(val.get_allocator()); + members_ = val.members_; + return *this; + } + + sorted_json_object& operator=(sorted_json_object&& val) + { + val.swap(*this); + return *this; + } + + sorted_json_object(const sorted_json_object& val, const allocator_type& alloc) + : allocator_holder(alloc), + members_(val.members_,key_value_allocator_type(alloc)) + { + } + + sorted_json_object(sorted_json_object&& val,const allocator_type& alloc) + : allocator_holder(alloc), members_(std::move(val.members_),key_value_allocator_type(alloc)) + { + } + + template + sorted_json_object(InputIt first, InputIt last) + { + std::size_t count = std::distance(first,last); + members_.reserve(count); + for (auto s = first; s != last; ++s) + { + members_.emplace_back(get_key_value()(*s)); + } + std::stable_sort(members_.begin(),members_.end(), + [](const key_value_type& a, const key_value_type& b) -> bool {return a.key().compare(b.key()) < 0;}); + auto it = std::unique(members_.begin(), members_.end(), + [](const key_value_type& a, const key_value_type& b) -> bool { return !(a.key().compare(b.key()));}); + members_.erase(it, members_.end()); + } + + template + sorted_json_object(InputIt first, InputIt last, + const allocator_type& alloc) + : allocator_holder(alloc), + members_(key_value_allocator_type(alloc)) + { + std::size_t count = std::distance(first,last); + members_.reserve(count); + for (auto s = first; s != last; ++s) + { + members_.emplace_back(get_key_value()(*s)); + } + std::stable_sort(members_.begin(),members_.end(), + [](const key_value_type& a, const key_value_type& b) -> bool {return a.key().compare(b.key()) < 0;}); + auto it = std::unique(members_.begin(), members_.end(), + [](const key_value_type& a, const key_value_type& b) -> bool { return !(a.key().compare(b.key()));}); + members_.erase(it, members_.end()); + } + + sorted_json_object(const std::initializer_list,Json>>& init, + const allocator_type& alloc = allocator_type()) + : allocator_holder(alloc), + members_(key_value_allocator_type(alloc)) + { + members_.reserve(init.size()); + for (auto& item : init) + { + insert_or_assign(item.first, item.second); + } + } + + ~sorted_json_object() noexcept + { + flatten_and_destroy(); + } + + bool empty() const + { + return members_.empty(); + } + + void swap(sorted_json_object& val) noexcept + { + members_.swap(val.members_); + } + + iterator begin() + { + return members_.begin(); + } + + iterator end() + { + return members_.end(); + } + + const_iterator begin() const + { + return members_.begin(); + } + + const_iterator end() const + { + return members_.end(); + } + + std::size_t size() const {return members_.size();} + + std::size_t capacity() const {return members_.capacity();} + + void clear() {members_.clear();} + + void shrink_to_fit() + { + for (std::size_t i = 0; i < members_.size(); ++i) + { + members_[i].shrink_to_fit(); + } + members_.shrink_to_fit(); + } + + void reserve(std::size_t n) {members_.reserve(n);} + + Json& at(std::size_t i) + { + if (i >= members_.size()) + { + JSONCONS_THROW(json_runtime_error("Invalid array subscript")); + } + return members_[i].value(); + } + + const Json& at(std::size_t i) const + { + if (i >= members_.size()) + { + JSONCONS_THROW(json_runtime_error("Invalid array subscript")); + } + return members_[i].value(); + } + + iterator find(const string_view_type& name) noexcept + { + auto p = std::equal_range(members_.begin(),members_.end(), name, + Comp()); + return p.first == p.second ? members_.end() : p.first; + } + + const_iterator find(const string_view_type& name) const noexcept + { + auto p = std::equal_range(members_.begin(),members_.end(), name, + Comp()); + return p.first == p.second ? members_.end() : p.first; + } + + iterator erase(const_iterator pos) + { + #if defined(JSONCONS_NO_VECTOR_ERASE_TAKES_CONST_ITERATOR) + iterator it = members_.begin() + (pos - members_.begin()); + return members_.erase(it); + #else + return members_.erase(pos); + #endif + } + + iterator erase(const_iterator first, const_iterator last) + { + #if defined(JSONCONS_NO_VECTOR_ERASE_TAKES_CONST_ITERATOR) + iterator it1 = members_.begin() + (first - members_.begin()); + iterator it2 = members_.begin() + (last - members_.begin()); + return members_.erase(it1,it2); + #else + return members_.erase(first,last); + #endif + } + + void erase(const string_view_type& name) + { + auto it = find(name); + if (it != members_.end()) + { + members_.erase(it); + } + } + + template + void insert(InputIt first, InputIt last, Convert convert) + { + std::size_t count = std::distance(first,last); + members_.reserve(members_.size() + count); + for (auto s = first; s != last; ++s) + { + members_.emplace_back(convert(*s)); + } + std::stable_sort(members_.begin(),members_.end(), + [](const key_value_type& a, const key_value_type& b) -> bool {return a.key().compare(b.key()) < 0;}); + auto it = std::unique(members_.begin(), members_.end(), + [](const key_value_type& a, const key_value_type& b) -> bool { return !(a.key().compare(b.key()));}); + members_.erase(it, members_.end()); + } + + template + void insert(sorted_unique_range_tag, InputIt first, InputIt last, Convert convert) + { + if (first != last) + { + std::size_t count = std::distance(first,last); + members_.reserve(members_.size() + count); + + auto it = find(convert(*first).key()); + if (it != members_.end()) + { + for (auto s = first; s != last; ++s) + { + it = members_.emplace(it, convert(*s)); + } + } + else + { + for (auto s = first; s != last; ++s) + { + members_.emplace_back(convert(*s)); + } + } + } + } + + // insert_or_assign + + template + typename std::enable_if::value,std::pair>::type + insert_or_assign(const string_view_type& name, T&& value) + { + bool inserted; + auto it = std::lower_bound(members_.begin(),members_.end(), name, + Comp()); + if (it == members_.end()) + { + members_.emplace_back(key_type(name.begin(),name.end()), + std::forward(value)); + inserted = true; + it = members_.begin() + members_.size() - 1; + } + else if (it->key() == name) + { + it->value(Json(std::forward(value))); + inserted = false; // assigned + } + else + { + it = members_.emplace(it, + key_type(name.begin(),name.end()), + std::forward(value)); + inserted = true; + } + return std::make_pair(it,inserted); + } + + template + typename std::enable_if::value,std::pair>::type + insert_or_assign(const string_view_type& name, T&& value) + { + bool inserted; + auto it = std::lower_bound(members_.begin(),members_.end(), name, + Comp()); + if (it == members_.end()) + { + members_.emplace_back(key_type(name.begin(),name.end(), get_allocator()), + std::forward(value),get_allocator()); + inserted = true; + it = members_.begin() + members_.size() - 1; + } + else if (it->key() == name) + { + it->value(Json(std::forward(value), get_allocator())); + inserted = false; // assigned + } + else + { + it = members_.emplace(it, + key_type(name.begin(),name.end(), get_allocator()), + std::forward(value),get_allocator()); + inserted = true; + } + return std::make_pair(it,inserted); + } + + // try_emplace + + template + typename std::enable_if::value,std::pair>::type + try_emplace(const string_view_type& name, Args&&... args) + { + bool inserted; + auto it = std::lower_bound(members_.begin(),members_.end(), name, + Comp()); + if (it == members_.end()) + { + members_.emplace_back(key_type(name.begin(),name.end()), + std::forward(args)...); + it = members_.begin() + members_.size() - 1; + inserted = true; + } + else if (it->key() == name) + { + inserted = false; + } + else + { + it = members_.emplace(it, + key_type(name.begin(),name.end()), + std::forward(args)...); + inserted = true; + } + return std::make_pair(it,inserted); + } + + template + typename std::enable_if::value,std::pair>::type + try_emplace(const string_view_type& name, Args&&... args) + { + bool inserted; + auto it = std::lower_bound(members_.begin(),members_.end(), name, + Comp()); + if (it == members_.end()) + { + members_.emplace_back(key_type(name.begin(),name.end(), get_allocator()), + std::forward(args)...); + it = members_.begin() + members_.size() - 1; + inserted = true; + } + else if (it->key() == name) + { + inserted = false; + } + else + { + it = members_.emplace(it, + key_type(name.begin(),name.end(), get_allocator()), + std::forward(args)...); + inserted = true; + } + return std::make_pair(it,inserted); + } + + template + typename std::enable_if::value,iterator>::type + try_emplace(iterator hint, const string_view_type& name, Args&&... args) + { + iterator it = hint; + + if (hint != members_.end() && hint->key() <= name) + { + it = std::lower_bound(hint,members_.end(), name, + Comp()); + } + else + { + it = std::lower_bound(members_.begin(),members_.end(), name, + Comp()); + } + + if (it == members_.end()) + { + members_.emplace_back(key_type(name.begin(),name.end()), + std::forward(args)...); + it = members_.begin() + (members_.size() - 1); + } + else if (it->key() == name) + { + } + else + { + it = members_.emplace(it, + key_type(name.begin(),name.end()), + std::forward(args)...); + } + + return it; + } + + template + typename std::enable_if::value,iterator>::type + try_emplace(iterator hint, const string_view_type& name, Args&&... args) + { + iterator it = hint; + if (hint != members_.end() && hint->key() <= name) + { + it = std::lower_bound(hint,members_.end(), name, + Comp()); + } + else + { + it = std::lower_bound(members_.begin(),members_.end(), name, + Comp()); + } + + if (it == members_.end()) + { + members_.emplace_back(key_type(name.begin(),name.end(), get_allocator()), + std::forward(args)...); + it = members_.begin() + (members_.size() - 1); + } + else if (it->key() == name) + { + } + else + { + it = members_.emplace(it, + key_type(name.begin(),name.end(), get_allocator()), + std::forward(args)...); + } + return it; + } + + // insert_or_assign + + template + typename std::enable_if::value,iterator>::type + insert_or_assign(iterator hint, const string_view_type& name, T&& value) + { + iterator it; + if (hint != members_.end() && hint->key() <= name) + { + it = std::lower_bound(hint,members_.end(), name, + [](const key_value_type& a, const string_view_type& k) -> bool {return string_view_type(a.key()).compare(k) < 0;}); + } + else + { + it = std::lower_bound(members_.begin(),members_.end(), name, + [](const key_value_type& a, const string_view_type& k) -> bool {return string_view_type(a.key()).compare(k) < 0;}); + } + + if (it == members_.end()) + { + members_.emplace_back(key_type(name.begin(),name.end()), + std::forward(value)); + it = members_.begin() + (members_.size() - 1); + } + else if (it->key() == name) + { + it->value(Json(std::forward(value))); + } + else + { + it = members_.emplace(it, + key_type(name.begin(),name.end()), + std::forward(value)); + } + return it; + } + + template + typename std::enable_if::value,iterator>::type + insert_or_assign(iterator hint, const string_view_type& name, T&& value) + { + iterator it; + if (hint != members_.end() && hint->key() <= name) + { + it = std::lower_bound(hint,members_.end(), name, + Comp()); + } + else + { + it = std::lower_bound(members_.begin(),members_.end(), name, + Comp()); + } + + if (it == members_.end()) + { + members_.emplace_back(key_type(name.begin(),name.end(), get_allocator()), + std::forward(value),get_allocator()); + it = members_.begin() + (members_.size() - 1); + } + else if (it->key() == name) + { + it->value(Json(std::forward(value),get_allocator())); + } + else + { + it = members_.emplace(it, + key_type(name.begin(),name.end(), get_allocator()), + std::forward(value),get_allocator()); + } + return it; + } + + // merge + + void merge(const sorted_json_object& source) + { + for (auto it = source.begin(); it != source.end(); ++it) + { + try_emplace(it->key(),it->value()); + } + } + + void merge(sorted_json_object&& source) + { + auto it = std::make_move_iterator(source.begin()); + auto end = std::make_move_iterator(source.end()); + for (; it != end; ++it) + { + auto pos = std::lower_bound(members_.begin(),members_.end(), (*it).key(), + Comp()); + if (pos == members_.end() ) + { + members_.emplace_back(*it); + } + else if ((*it).key() != pos->key()) + { + members_.emplace(pos,*it); + } + } + } + + void merge(iterator hint, const sorted_json_object& source) + { + for (auto it = source.begin(); it != source.end(); ++it) + { + hint = try_emplace(hint, (*it).key(),(*it).value()); + } + } + + void merge(iterator hint, sorted_json_object&& source) + { + auto it = std::make_move_iterator(source.begin()); + auto end = std::make_move_iterator(source.end()); + for (; it != end; ++it) + { + iterator pos; + if (hint != members_.end() && hint->key() <= (*it).key()) + { + pos = std::lower_bound(hint,members_.end(), (*it).key(), + Comp()); + } + else + { + pos = std::lower_bound(members_.begin(),members_.end(), (*it).key(), + Comp()); + } + if (pos == members_.end() ) + { + members_.emplace_back(*it); + hint = members_.begin() + (members_.size() - 1); + } + else if ((*it).key() != pos->key()) + { + hint = members_.emplace(pos,*it); + } + } + } + + // merge_or_update + + void merge_or_update(const sorted_json_object& source) + { + for (auto it = source.begin(); it != source.end(); ++it) + { + insert_or_assign((*it).key(),(*it).value()); + } + } + + void merge_or_update(sorted_json_object&& source) + { + auto it = std::make_move_iterator(source.begin()); + auto end = std::make_move_iterator(source.end()); + for (; it != end; ++it) + { + auto pos = std::lower_bound(members_.begin(),members_.end(), (*it).key(), + Comp()); + if (pos == members_.end() ) + { + members_.emplace_back(*it); + } + else + { + pos->value((*it).value()); + } + } + } + + void merge_or_update(iterator hint, const sorted_json_object& source) + { + for (auto it = source.begin(); it != source.end(); ++it) + { + hint = insert_or_assign(hint, (*it).key(),(*it).value()); + } + } + + void merge_or_update(iterator hint, sorted_json_object&& source) + { + auto it = std::make_move_iterator(source.begin()); + auto end = std::make_move_iterator(source.end()); + for (; it != end; ++it) + { + iterator pos; + if (hint != members_.end() && hint->key() <= (*it).key()) + { + pos = std::lower_bound(hint,members_.end(), (*it).key(), + Comp()); + } + else + { + pos = std::lower_bound(members_.begin(),members_.end(), (*it).key(), + Comp()); + } + if (pos == members_.end() ) + { + members_.emplace_back(*it); + hint = members_.begin() + (members_.size() - 1); + } + else + { + pos->value((*it).value()); + hint = pos; + } + } + } + + bool operator==(const sorted_json_object& rhs) const + { + return members_ == rhs.members_; + } + + bool operator<(const sorted_json_object& rhs) const + { + return members_ < rhs.members_; + } + private: + + void flatten_and_destroy() noexcept + { + if (!members_.empty()) + { + json_array temp(get_allocator()); + + for (auto& kv : members_) + { + switch (kv.value().storage_kind()) + { + case json_storage_kind::array_value: + case json_storage_kind::object_value: + if (!kv.value().empty()) + { + temp.emplace_back(std::move(kv.value())); + } + break; + default: + break; + } + } + } + } + }; + + // Preserve order + template class SequenceContainer = std::vector> + class order_preserving_json_object : public allocator_holder + { + public: + using allocator_type = typename Json::allocator_type; + using char_type = typename Json::char_type; + using key_type = KeyT; + //using mapped_type = Json; + using string_view_type = typename Json::string_view_type; + using key_value_type = key_value; + //using implementation_policy = typename Json::implementation_policy; + private: + + using key_value_allocator_type = typename std::allocator_traits:: template rebind_alloc; + using key_value_container_type = SequenceContainer; + typedef typename std::allocator_traits:: template rebind_alloc index_allocator_type; + //using index_container_type = typename implementation_policy::template sequence_container_type; + using index_container_type = SequenceContainer; + + key_value_container_type members_; + index_container_type index_; + + struct Comp + { + const key_value_container_type& members_; + + Comp(const key_value_container_type& members_) + : members_(members_) + { + } + + bool operator() (std::size_t i, string_view_type k) const { return members_.at(i).key() < k; } + bool operator() (string_view_type k, std::size_t i) const { return k < members_.at(i).key(); } + }; + public: + using iterator = typename key_value_container_type::iterator; + using const_iterator = typename key_value_container_type::const_iterator; + + using allocator_holder::get_allocator; + + order_preserving_json_object() + { + } + order_preserving_json_object(const allocator_type& alloc) + : allocator_holder(alloc), + members_(key_value_allocator_type(alloc)), + index_(index_allocator_type(alloc)) + { + } + + order_preserving_json_object(const order_preserving_json_object& val) + : allocator_holder(val.get_allocator()), + members_(val.members_), + index_(val.index_) + { + } + + order_preserving_json_object(order_preserving_json_object&& val) + : allocator_holder(val.get_allocator()), + members_(std::move(val.members_)), + index_(std::move(val.index_)) + { + } + + order_preserving_json_object(const order_preserving_json_object& val, const allocator_type& alloc) + : allocator_holder(alloc), + members_(val.members_,key_value_allocator_type(alloc)), + index_(val.index_,index_allocator_type(alloc)) + { + } + + order_preserving_json_object(order_preserving_json_object&& val,const allocator_type& alloc) + : allocator_holder(alloc), + members_(std::move(val.members_),key_value_allocator_type(alloc)), + index_(std::move(val.index_),index_allocator_type(alloc)) + { + } + + template + order_preserving_json_object(InputIt first, InputIt last) + { + std::size_t count = std::distance(first,last); + members_.reserve(count); + for (auto s = first; s != last; ++s) + { + members_.emplace_back(get_key_value()(*s)); + } + + build_index(); + auto last_unique = std::unique(index_.begin(), index_.end(), + [&](std::size_t a, std::size_t b) { return !(members_.at(a).key().compare(members_.at(b).key())); }); + + if (last_unique != index_.end()) + { + index_.erase(last_unique, index_.end()); + std::sort(index_.begin(), index_.end()); + + auto result = index_.rbegin(); + if (*result != members_.size()) + { + members_.erase(members_.begin() + (*result + 1), members_.end()); + } + for (auto it = index_.rbegin() + 1; it != index_.rend(); ++it, ++result) + { + if (*result - *it > 1) + { + members_.erase(members_.begin() + (*it + 1), members_.begin() + *result); + } + } + } + build_index(); + } + + template + order_preserving_json_object(InputIt first, InputIt last, + const allocator_type& alloc) + : allocator_holder(alloc), + members_(key_value_allocator_type(alloc)), + index_(index_allocator_type(alloc)) + { + std::size_t count = std::distance(first,last); + members_.reserve(count); + for (auto s = first; s != last; ++s) + { + members_.emplace_back(get_key_value()(*s)); + } + + build_index(); + auto last_unique = std::unique(index_.begin(), index_.end(), + [&](std::size_t a, std::size_t b) { return !(members_.at(a).key().compare(members_.at(b).key())); }); + + if (last_unique != index_.end()) + { + index_.erase(last_unique, index_.end()); + std::sort(index_.begin(), index_.end()); + + auto result = index_.rbegin(); + if (*result != members_.size()) + { + members_.erase(members_.begin() + (*result + 1), members_.end()); + } + for (auto it = index_.rbegin() + 1; it != index_.rend(); ++it, ++result) + { + if (*result - *it > 1) + { + members_.erase(members_.begin() + (*it + 1), members_.begin() + *result); + } + } + } + build_index(); + } + + order_preserving_json_object(std::initializer_list,Json>> init, + const allocator_type& alloc = allocator_type()) + : allocator_holder(alloc), + members_(key_value_allocator_type(alloc)), + index_(index_allocator_type(alloc)) + { + members_.reserve(init.size()); + for (auto& item : init) + { + insert_or_assign(item.first, item.second); + } + } + + ~order_preserving_json_object() noexcept + { + flatten_and_destroy(); + } + + order_preserving_json_object& operator=(order_preserving_json_object&& val) + { + val.swap(*this); + return *this; + } + + order_preserving_json_object& operator=(const order_preserving_json_object& val) + { + allocator_holder::operator=(val.get_allocator()); + members_ = val.members_; + index_ = val.index_; + return *this; + } + + void swap(order_preserving_json_object& val) noexcept + { + members_.swap(val.members_); + } + + bool empty() const + { + return members_.empty(); + } + + iterator begin() + { + return members_.begin(); + } + + iterator end() + { + return members_.end(); + } + + const_iterator begin() const + { + return members_.begin(); + } + + const_iterator end() const + { + return members_.end(); + } + + std::size_t size() const {return members_.size();} + + std::size_t capacity() const {return members_.capacity();} + + void clear() + { + members_.clear(); + index_.clear(); + } + + void shrink_to_fit() + { + for (std::size_t i = 0; i < members_.size(); ++i) + { + members_[i].shrink_to_fit(); + } + members_.shrink_to_fit(); + index_.shrink_to_fit(); + } + + void reserve(std::size_t n) {members_.reserve(n);} + + Json& at(std::size_t i) + { + if (i >= members_.size()) + { + JSONCONS_THROW(json_runtime_error("Invalid array subscript")); + } + return members_[i].value(); + } + + const Json& at(std::size_t i) const + { + if (i >= members_.size()) + { + JSONCONS_THROW(json_runtime_error("Invalid array subscript")); + } + return members_[i].value(); + } + + iterator find(const string_view_type& name) noexcept + { + auto p = std::equal_range(index_.begin(),index_.end(), name, + Comp(members_)); + return p.first == p.second ? members_.end() : members_.begin() + *p.first; + } + + const_iterator find(const string_view_type& name) const noexcept + { + auto p = std::equal_range(index_.begin(),index_.end(), name, + Comp(members_)); + return p.first == p.second ? members_.end() : members_.begin() + *p.first; + } + + iterator erase(const_iterator pos) + { + if (pos != members_.end()) + { + std::size_t pos1 = pos - members_.begin(); + std::size_t pos2 = pos1 + 1; + + erase_index_entries(pos1, pos2); + #if defined(JSONCONS_NO_VECTOR_ERASE_TAKES_CONST_ITERATOR) + iterator it = members_.begin() + (pos - members_.begin()); + return members_.erase(it); + #else + return members_.erase(pos); + #endif + } + else + { + return members_.end(); + } + } + + iterator erase(const_iterator first, const_iterator last) + { + std::size_t pos1 = first == members_.end() ? members_.size() : first - members_.begin(); + std::size_t pos2 = last == members_.end() ? members_.size() : last - members_.begin(); + + if (pos1 < members_.size() && pos2 <= members_.size()) + { + erase_index_entries(pos1,pos2); + + #if defined(JSONCONS_NO_VECTOR_ERASE_TAKES_CONST_ITERATOR) + iterator it1 = members_.begin() + (first - members_.begin()); + iterator it2 = members_.begin() + (last - members_.begin()); + return members_.erase(it1,it2); + #else + return members_.erase(first,last); + #endif + } + else + { + return members_.end(); + } + } + + void erase(const string_view_type& name) + { + auto pos = find(name); + if (pos != members_.end()) + { + std::size_t pos1 = pos - members_.begin(); + std::size_t pos2 = pos1 + 1; + + erase_index_entries(pos1, pos2); + #if defined(JSONCONS_NO_VECTOR_ERASE_TAKES_CONST_ITERATOR) + iterator it = members_.begin() + (pos - members_.begin()); + members_.erase(it); + #else + members_.erase(pos); + #endif + } + } + + template + void insert(InputIt first, InputIt last, Convert convert) + { + std::size_t count = std::distance(first,last); + members_.reserve(members_.size() + count); + for (auto s = first; s != last; ++s) + { + members_.emplace_back(convert(*s)); + } + + build_index(); + auto last_unique = std::unique(index_.begin(), index_.end(), + [&](std::size_t a, std::size_t b) { return !(members_.at(a).key().compare(members_.at(b).key())); }); + + if (last_unique != index_.end()) + { + index_.erase(last_unique, index_.end()); + std::sort(index_.begin(), index_.end()); + + auto result = index_.rbegin(); + if (*result != members_.size()) + { + members_.erase(members_.begin() + (*result + 1), members_.end()); + } + for (auto it = index_.rbegin() + 1; it != index_.rend(); ++it, ++result) + { + if (*result - *it > 1) + { + members_.erase(members_.begin() + (*it + 1), members_.begin() + *result); + } + } + } + build_index(); + } + + template + void insert(sorted_unique_range_tag, InputIt first, InputIt last, Convert convert) + { + std::size_t count = std::distance(first,last); + + members_.reserve(members_.size() + count); + for (auto s = first; s != last; ++s) + { + members_.emplace_back(convert(*s)); + } + + build_index(); + } + + template + typename std::enable_if::value,std::pair>::type + insert_or_assign(const string_view_type& name, T&& value) + { + auto result = insert_index_entry(name,members_.size()); + if (result.second) + { + members_.emplace_back(key_type(name.begin(), name.end()), std::forward(value)); + auto it = members_.begin() + result.first; + return std::make_pair(it,true); + } + else + { + auto it = members_.begin() + result.first; + it->value(Json(std::forward(value))); + return std::make_pair(it,false); + } + } + + template + typename std::enable_if::value,std::pair>::type + insert_or_assign(const string_view_type& name, T&& value) + { + auto result = insert_index_entry(name,members_.size()); + if (result.second) + { + members_.emplace_back(key_type(name.begin(),name.end(),get_allocator()), + std::forward(value),get_allocator()); + auto it = members_.begin() + result.first; + return std::make_pair(it,true); + } + else + { + auto it = members_.begin() + result.first; + it->value(Json(std::forward(value),get_allocator())); + return std::make_pair(it,false); + } + } + + template + typename std::enable_if::value,iterator>::type + insert_or_assign(iterator hint, const string_view_type& key, T&& value) + { + if (hint == members_.end()) + { + auto result = insert_or_assign(key, std::forward(value)); + return result.first; + } + else + { + std::size_t pos = hint - members_.begin(); + auto result = insert_index_entry(key,pos); + + if (result.second) + { + auto it = members_.emplace(hint, key_type(key.begin(), key.end()), std::forward(value)); + return it; + } + else + { + auto it = members_.begin() + result.first; + it->value(Json(std::forward(value))); + return it; + } + } + } + + template + typename std::enable_if::value,iterator>::type + insert_or_assign(iterator hint, const string_view_type& key, T&& value) + { + if (hint == members_.end()) + { + auto result = insert_or_assign(key, std::forward(value)); + return result.first; + } + else + { + std::size_t pos = hint - members_.begin(); + auto result = insert_index_entry(key,pos); + + if (result.second) + { + auto it = members_.emplace(hint, + key_type(key.begin(),key.end(),get_allocator()), + std::forward(value),get_allocator()); + return it; + } + else + { + auto it = members_.begin() + result.first; + it->value(Json(std::forward(value),get_allocator())); + return it; + } + } + } + + // merge + + void merge(const order_preserving_json_object& source) + { + for (auto it = source.begin(); it != source.end(); ++it) + { + try_emplace((*it).key(),(*it).value()); + } + } + + void merge(order_preserving_json_object&& source) + { + auto it = std::make_move_iterator(source.begin()); + auto end = std::make_move_iterator(source.end()); + for (; it != end; ++it) + { + auto pos = find((*it).key()); + if (pos == members_.end() ) + { + try_emplace((*it).key(),std::move((*it).value())); + } + } + } + + void merge(iterator hint, const order_preserving_json_object& source) + { + std::size_t pos = hint - members_.begin(); + for (auto it = source.begin(); it != source.end(); ++it) + { + hint = try_emplace(hint, (*it).key(),(*it).value()); + std::size_t newpos = hint - members_.begin(); + if (newpos == pos) + { + ++hint; + pos = hint - members_.begin(); + } + else + { + hint = members_.begin() + pos; + } + } + } + + void merge(iterator hint, order_preserving_json_object&& source) + { + std::size_t pos = hint - members_.begin(); + + auto it = std::make_move_iterator(source.begin()); + auto end = std::make_move_iterator(source.end()); + for (; it != end; ++it) + { + hint = try_emplace(hint, (*it).key(), std::move((*it).value())); + std::size_t newpos = hint - members_.begin(); + if (newpos == pos) + { + ++hint; + pos = hint - members_.begin(); + } + else + { + hint = members_.begin() + pos; + } + } + } + + // merge_or_update + + void merge_or_update(const order_preserving_json_object& source) + { + for (auto it = source.begin(); it != source.end(); ++it) + { + insert_or_assign((*it).key(),(*it).value()); + } + } + + void merge_or_update(order_preserving_json_object&& source) + { + auto it = std::make_move_iterator(source.begin()); + auto end = std::make_move_iterator(source.end()); + for (; it != end; ++it) + { + auto pos = find((*it).key()); + if (pos == members_.end() ) + { + insert_or_assign((*it).key(),std::move((*it).value())); + } + else + { + pos->value(std::move((*it).value())); + } + } + } + + void merge_or_update(iterator hint, const order_preserving_json_object& source) + { + std::size_t pos = hint - members_.begin(); + for (auto it = source.begin(); it != source.end(); ++it) + { + hint = insert_or_assign(hint, (*it).key(),(*it).value()); + std::size_t newpos = hint - members_.begin(); + if (newpos == pos) + { + ++hint; + pos = hint - members_.begin(); + } + else + { + hint = members_.begin() + pos; + } + } + } + + void merge_or_update(iterator hint, order_preserving_json_object&& source) + { + std::size_t pos = hint - members_.begin(); + auto it = std::make_move_iterator(source.begin()); + auto end = std::make_move_iterator(source.end()); + for (; it != end; ++it) + { + hint = insert_or_assign(hint, (*it).key(), std::move((*it).value())); + std::size_t newpos = hint - members_.begin(); + if (newpos == pos) + { + ++hint; + pos = hint - members_.begin(); + } + else + { + hint = members_.begin() + pos; + } + } + } + + // try_emplace + + template + typename std::enable_if::value,std::pair>::type + try_emplace(const string_view_type& name, Args&&... args) + { + auto result = insert_index_entry(name,members_.size()); + if (result.second) + { + members_.emplace_back(key_type(name.begin(), name.end()), std::forward(args)...); + auto it = members_.begin() + result.first; + return std::make_pair(it,true); + } + else + { + auto it = members_.begin() + result.first; + return std::make_pair(it,false); + } + } + + template + typename std::enable_if::value,std::pair>::type + try_emplace(const string_view_type& key, Args&&... args) + { + auto result = insert_index_entry(key,members_.size()); + if (result.second) + { + members_.emplace_back(key_type(key.begin(),key.end(), get_allocator()), + std::forward(args)...); + auto it = members_.begin() + result.first; + return std::make_pair(it,true); + } + else + { + auto it = members_.begin() + result.first; + return std::make_pair(it,false); + } + } + + template + typename std::enable_if::value,iterator>::type + try_emplace(iterator hint, const string_view_type& key, Args&&... args) + { + if (hint == members_.end()) + { + auto result = try_emplace(key, std::forward(args)...); + return result.first; + } + else + { + std::size_t pos = hint - members_.begin(); + auto result = insert_index_entry(key, pos); + + if (result.second) + { + auto it = members_.emplace(hint, key_type(key.begin(), key.end()), std::forward(args)...); + return it; + } + else + { + auto it = members_.begin() + result.first; + return it; + } + } + } + + template + typename std::enable_if::value,iterator>::type + try_emplace(iterator hint, const string_view_type& key, Args&&... args) + { + if (hint == members_.end()) + { + auto result = try_emplace(key, std::forward(args)...); + return result.first; + } + else + { + std::size_t pos = hint - members_.begin(); + auto result = insert_index_entry(key, pos); + + if (result.second) + { + auto it = members_.emplace(hint, + key_type(key.begin(),key.end(), get_allocator()), + std::forward(args)...); + return it; + } + else + { + auto it = members_.begin() + result.first; + return it; + } + } + } + + bool operator==(const order_preserving_json_object& rhs) const + { + return members_ == rhs.members_; + } + + bool operator<(const order_preserving_json_object& rhs) const + { + return members_ < rhs.members_; + } + private: + + void flatten_and_destroy() noexcept + { + if (!members_.empty()) + { + json_array temp(get_allocator()); + + for (auto&& kv : members_) + { + if (kv.value().size() > 0) + { + temp.emplace_back(std::move(kv.value())); + } + } + } + } + + std::pair insert_index_entry(const string_view_type& key, std::size_t pos) + { + JSONCONS_ASSERT(pos <= index_.size()); + + auto it = std::lower_bound(index_.begin(),index_.end(), key, + Comp(members_)); + + if (it == index_.end()) + { + std::size_t count = index_.size() - pos; + for (std::size_t i = 0; count > 0 && i < index_.size(); ++i) + { + if (index_[i] >= pos) + { + ++index_[i]; + --count; + } + } + index_.push_back(pos); + return std::make_pair(pos,true); + } + else if (members_.at(*it).key() != key) + { + std::size_t count = index_.size() - pos; + for (std::size_t i = 0; count > 0 && i < index_.size(); ++i) + { + if (index_[i] >= pos) + { + ++index_[i]; + --count; + } + } + auto it2 = index_.insert(it, pos); + return std::make_pair(*it2,true); + } + else + { + return std::make_pair(*it,false); + } + } + + void erase_index_entries(std::size_t pos1, std::size_t pos2) + { + JSONCONS_ASSERT(pos1 <= pos2); + JSONCONS_ASSERT(pos2 <= index_.size()); + + const size_t offset = pos2 - pos1; + const size_t n = index_.size() - offset; + for (std::size_t i = 0; i < index_.size(); ++i) + { + if (index_[i] >= pos1 && index_[i] < pos2) + { + index_.erase(index_.begin()+i); + --i; + } + } + for (std::size_t i = 0; i < index_.size(); ++i) + { + if (index_[i] >= pos2) + { + index_[i] -= offset; + } + } + JSONCONS_ASSERT(index_.size() == n); + } + + void build_index() + { + index_.clear(); + index_.reserve(members_.size()); + for (std::size_t i = 0; i < members_.size(); ++i) + { + index_.push_back(i); + } + std::stable_sort(index_.begin(),index_.end(), + [&](std::size_t a, std::size_t b) -> bool {return members_.at(a).key().compare(members_.at(b).key()) < 0;}); + } + }; + +} // namespace jsoncons + +#endif diff --git a/include/jsoncons/json_options.hpp b/include/jsoncons/json_options.hpp new file mode 100644 index 0000000..e73f233 --- /dev/null +++ b/include/jsoncons/json_options.hpp @@ -0,0 +1,862 @@ +// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSON_OPTIONS_HPP +#define JSONCONS_JSON_OPTIONS_HPP + +#include +#include // std::numeric_limits +#include +#include +#include + +namespace jsoncons { + +enum class float_chars_format : uint8_t {general,fixed,scientific,hex}; + +#if !defined(JSONCONS_NO_DEPRECATED) +JSONCONS_DEPRECATED_MSG("Instead, use float_chars_format") typedef float_chars_format chars_format; +#endif + +enum class indenting : uint8_t {no_indent = 0, indent = 1}; + +enum class line_split_kind : uint8_t {same_line,new_line,multi_line}; + +enum class bigint_chars_format : uint8_t {number, base10, base64, base64url +#if !defined(JSONCONS_NO_DEPRECATED) +,integer = number +#endif +}; + +#if !defined(JSONCONS_NO_DEPRECATED) +JSONCONS_DEPRECATED_MSG("Instead, use bigint_chars_format") typedef bigint_chars_format bignum_chars_format; +JSONCONS_DEPRECATED_MSG("Instead, use bigint_chars_format") typedef bigint_chars_format big_integer_chars_format; +#endif + +enum class byte_string_chars_format : uint8_t {none=0,base16,base64,base64url}; + +enum class spaces_option : uint8_t {no_spaces=0,space_after,space_before,space_before_and_after}; + +template +class basic_json_options; + +template +class basic_json_options_common +{ + friend class basic_json_options; +public: + using char_type = CharT; + using string_type = std::basic_string; +private: +#if !defined(JSONCONS_NO_DEPRECATED) + bool can_read_nan_replacement_; + bool can_read_pos_inf_replacement_; + bool can_read_neg_inf_replacement_; + string_type nan_replacement_; + string_type pos_inf_replacement_; + string_type neg_inf_replacement_; +#endif + + bool enable_nan_to_num_:1; + bool enable_inf_to_num_:1; + bool enable_neginf_to_num_:1; + bool enable_nan_to_str_:1; + bool enable_inf_to_str_:1; + bool enable_neginf_to_str_:1; + bool enable_str_to_nan_:1; + bool enable_str_to_inf_:1; + bool enable_str_to_neginf_:1; + + string_type nan_to_num_; + string_type inf_to_num_; + string_type neginf_to_num_; + string_type nan_to_str_; + string_type inf_to_str_; + string_type neginf_to_str_; + int max_nesting_depth_; + +protected: + basic_json_options_common() + : +#if !defined(JSONCONS_NO_DEPRECATED) + can_read_nan_replacement_(false), + can_read_pos_inf_replacement_(false), + can_read_neg_inf_replacement_(false), +#endif + enable_nan_to_num_(false), + enable_inf_to_num_(false), + enable_neginf_to_num_(false), + enable_nan_to_str_(false), + enable_inf_to_str_(false), + enable_neginf_to_str_(false), + enable_str_to_nan_(false), + enable_str_to_inf_(false), + enable_str_to_neginf_(false), + max_nesting_depth_(1024) + {} + + virtual ~basic_json_options_common() noexcept = default; + + basic_json_options_common(const basic_json_options_common&) = default; + basic_json_options_common& operator=(const basic_json_options_common&) = default; + basic_json_options_common(basic_json_options_common&&) = default; + basic_json_options_common& operator=(basic_json_options_common&&) = default; + +public: + + bool enable_nan_to_num() const + { + return enable_nan_to_num_; + } + + bool enable_inf_to_num() const + { + return enable_inf_to_num_; + } + + bool enable_neginf_to_num() const + { + return enable_neginf_to_num_ || enable_inf_to_num_; + } + + bool enable_nan_to_str() const + { + return enable_nan_to_str_; + } + + bool enable_str_to_nan() const + { + return enable_str_to_nan_; + } + + bool enable_inf_to_str() const + { + return enable_inf_to_str_; + } + + bool enable_str_to_inf() const + { + return enable_str_to_inf_; + } + + bool enable_neginf_to_str() const + { + return enable_neginf_to_str_ || enable_inf_to_str_; + } + + bool enable_str_to_neginf() const + { + return enable_str_to_neginf_ || enable_str_to_inf_; + } + + string_type nan_to_num() const + { + if (enable_nan_to_num_) + { + return nan_to_num_; + } +#if !defined(JSONCONS_NO_DEPRECATED) + else if (!can_read_nan_replacement_) // not string + { + return nan_replacement_; + } +#endif + else + { + return nan_to_num_; // empty string + } + } + + string_type inf_to_num() const + { + if (enable_inf_to_num_) + { + return inf_to_num_; + } +#if !defined(JSONCONS_NO_DEPRECATED) + else if (!can_read_pos_inf_replacement_) // not string + { + return pos_inf_replacement_; + } +#endif + else + { + return inf_to_num_; // empty string + } + } + + string_type neginf_to_num() const + { + if (enable_neginf_to_num_) + { + return neginf_to_num_; + } + else if (enable_inf_to_num_) + { + string_type s; + s.push_back('-'); + s.append(inf_to_num_); + return s; + } +#if !defined(JSONCONS_NO_DEPRECATED) + else if (!can_read_neg_inf_replacement_) // not string + { + return neg_inf_replacement_; + } +#endif + else + { + return neginf_to_num_; // empty string + } + } + + string_type nan_to_str() const + { + if (enable_nan_to_str_) + { + return nan_to_str_; + } +#if !defined(JSONCONS_NO_DEPRECATED) + else if (can_read_nan_replacement_ && nan_replacement_.size() >= 2) // string + { + return nan_replacement_.substr(1, nan_replacement_.size() - 2); // Remove quotes + } +#endif + else + { + return nan_to_str_; // empty string + } + } + + string_type inf_to_str() const + { + if (enable_inf_to_str_) + { + return inf_to_str_; + } +#if !defined(JSONCONS_NO_DEPRECATED) + else if (can_read_pos_inf_replacement_ && pos_inf_replacement_.size() >= 2) // string + { + return pos_inf_replacement_.substr(1, pos_inf_replacement_.size() - 2); // Strip quotes + } +#endif + else + { + return inf_to_str_; // empty string + } + } + + string_type neginf_to_str() const + { + if (enable_neginf_to_str_) + { + return neginf_to_str_; + } + else if (enable_inf_to_str_) + { + string_type s; + s.push_back('-'); + s.append(inf_to_str_); + return s; + } +#if !defined(JSONCONS_NO_DEPRECATED) + else if (can_read_neg_inf_replacement_ && neg_inf_replacement_.size() >= 2) // string + { + return neg_inf_replacement_.substr(1, neg_inf_replacement_.size() - 2); // Strip quotes + } +#endif + else + { + return neginf_to_str_; // empty string + } + } + + int max_nesting_depth() const + { + return max_nesting_depth_; + } + +#if !defined(JSONCONS_NO_DEPRECATED) + JSONCONS_DEPRECATED_MSG("Instead, use enable_nan_to_num() or enable_nan_to_str()") + bool can_read_nan_replacement() const { return can_read_nan_replacement_; } + + JSONCONS_DEPRECATED_MSG("Instead, use enable_inf_to_num() or enable_inf_to_str()") + bool can_read_pos_inf_replacement() const { return can_read_pos_inf_replacement_; } + + JSONCONS_DEPRECATED_MSG("Instead, use enable_neginf_to_num() or enable_neginf_to_str()") + bool can_read_neg_inf_replacement() const { return can_read_neg_inf_replacement_; } + + bool can_write_nan_replacement() const { return !nan_replacement_.empty(); } + + bool can_write_pos_inf_replacement() const { return !pos_inf_replacement_.empty(); } + + bool can_write_neg_inf_replacement() const { return !neg_inf_replacement_.empty(); } + + JSONCONS_DEPRECATED_MSG("Instead, use nan_to_num() or nan_to_str()") + const string_type& nan_replacement() const + { + return nan_replacement_; + } + + JSONCONS_DEPRECATED_MSG("Instead, use inf_to_num() or inf_to_str()") + const string_type& pos_inf_replacement() const + { + return pos_inf_replacement_; + } + + JSONCONS_DEPRECATED_MSG("Instead, use neginf_to_num() or neginf_to_str()") + const string_type& neg_inf_replacement() const + { + return neg_inf_replacement_; + } +#endif +}; + +template +class basic_json_decode_options : public virtual basic_json_options_common +{ + friend class basic_json_options; + using super_type = basic_json_options_common; +public: + using typename super_type::char_type; + using typename super_type::string_type; +private: + bool lossless_number_:1; +public: + basic_json_decode_options() + : lossless_number_(false) + { + } + + basic_json_decode_options(const basic_json_decode_options&) = default; + + basic_json_decode_options(basic_json_decode_options&& other) + : super_type(std::forward(other)), + lossless_number_(other.lossless_number_) + { + } + + basic_json_decode_options& operator=(const basic_json_decode_options&) = default; + + bool lossless_number() const + { + return lossless_number_; + } + +#if !defined(JSONCONS_NO_DEPRECATED) + JSONCONS_DEPRECATED_MSG("Instead, use lossless_number()") + bool dec_to_str() const + { + return lossless_number_; + } +#endif +}; + +template +class basic_json_encode_options : public virtual basic_json_options_common +{ + friend class basic_json_options; + using super_type = basic_json_options_common; +public: + using typename super_type::char_type; + using typename super_type::string_type; + + static constexpr uint8_t indent_size_default = 4; + static constexpr size_t line_length_limit_default = 120; +private: + bool escape_all_non_ascii_:1; + bool escape_solidus_:1; + bool pad_inside_object_braces_:1; + bool pad_inside_array_brackets_:1; + float_chars_format float_format_; + byte_string_chars_format byte_string_format_; + bigint_chars_format bigint_format_; + line_split_kind object_object_line_splits_; + line_split_kind object_array_line_splits_; + line_split_kind array_array_line_splits_; + line_split_kind array_object_line_splits_; + spaces_option spaces_around_colon_; + spaces_option spaces_around_comma_; + int8_t precision_; + uint8_t indent_size_; + std::size_t line_length_limit_; + string_type new_line_chars_; +public: + basic_json_encode_options() + : escape_all_non_ascii_(false), + escape_solidus_(false), + pad_inside_object_braces_(false), + pad_inside_array_brackets_(false), + float_format_(float_chars_format::general), + byte_string_format_(byte_string_chars_format::none), + bigint_format_(bigint_chars_format::base10), + object_object_line_splits_(line_split_kind::multi_line), + object_array_line_splits_(line_split_kind::same_line), + array_array_line_splits_(line_split_kind::new_line), + array_object_line_splits_(line_split_kind::multi_line), + spaces_around_colon_(spaces_option::space_after), + spaces_around_comma_(spaces_option::space_after), + precision_(0), + indent_size_(indent_size_default), + line_length_limit_(line_length_limit_default) + { + new_line_chars_.push_back('\n'); + } + + basic_json_encode_options(const basic_json_encode_options&) = default; + + basic_json_encode_options(basic_json_encode_options&& other) + : super_type(std::forward(other)), + escape_all_non_ascii_(other.escape_all_non_ascii_), + escape_solidus_(other.escape_solidus_), + pad_inside_object_braces_(other.pad_inside_object_braces_), + pad_inside_array_brackets_(other.pad_inside_array_brackets_), + float_format_(other.float_format_), + byte_string_format_(other.byte_string_format_), + bigint_format_(other.bigint_format_), + object_object_line_splits_(other.object_object_line_splits_), + object_array_line_splits_(other.object_array_line_splits_), + array_array_line_splits_(other.array_array_line_splits_), + array_object_line_splits_(other.array_object_line_splits_), + spaces_around_colon_(other.spaces_around_colon_), + spaces_around_comma_(other.spaces_around_comma_), + precision_(other.precision_), + indent_size_(other.indent_size_), + line_length_limit_(other.line_length_limit_), + new_line_chars_(std::move(other.new_line_chars_)) + { + } + + basic_json_encode_options& operator=(const basic_json_encode_options&) = default; + + byte_string_chars_format byte_string_format() const {return byte_string_format_;} + + bigint_chars_format bigint_format() const {return bigint_format_;} + + line_split_kind object_object_line_splits() const {return object_object_line_splits_;} + + line_split_kind array_object_line_splits() const {return array_object_line_splits_;} + + line_split_kind object_array_line_splits() const {return object_array_line_splits_;} + + line_split_kind array_array_line_splits() const {return array_array_line_splits_;} + + uint8_t indent_size() const + { + return indent_size_; + } + + spaces_option spaces_around_colon() const + { + return spaces_around_colon_; + } + + spaces_option spaces_around_comma() const + { + return spaces_around_comma_; + } + + bool pad_inside_object_braces() const + { + return pad_inside_object_braces_; + } + + bool pad_inside_array_brackets() const + { + return pad_inside_array_brackets_; + } + + string_type new_line_chars() const + { + return new_line_chars_; + } + + std::size_t line_length_limit() const + { + return line_length_limit_; + } + + float_chars_format float_format() const + { + return float_format_; + } + + int8_t precision() const + { + return precision_; + } + + bool escape_all_non_ascii() const + { + return escape_all_non_ascii_; + } + + bool escape_solidus() const + { + return escape_solidus_; + } + +#if !defined(JSONCONS_NO_DEPRECATED) + JSONCONS_DEPRECATED_MSG("Instead, use bigint_format()") + bigint_chars_format bignum_format() const {return bigint_format_;} + + JSONCONS_DEPRECATED_MSG("Instead, use indent_size()") + uint8_t indent() const + { + return indent_size(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use object_object_line_splits()") + line_split_kind object_object_split_lines() const {return object_object_line_splits_;} + + JSONCONS_DEPRECATED_MSG("Instead, use array_object_line_splits()") + line_split_kind array_object_split_lines() const {return array_object_line_splits_;} + + JSONCONS_DEPRECATED_MSG("Instead, use object_array_line_splits()") + line_split_kind object_array_split_lines() const {return object_array_line_splits_;} + + JSONCONS_DEPRECATED_MSG("Instead, use array_array_line_splits()") + line_split_kind array_array_split_lines() const {return array_array_line_splits_;} +#endif +}; + +template +class basic_json_options final: public basic_json_decode_options, + public basic_json_encode_options +{ +public: + using char_type = CharT; + using string_type = std::basic_string; + + using basic_json_options_common::max_nesting_depth; + + using basic_json_decode_options::enable_str_to_nan; + using basic_json_decode_options::enable_str_to_inf; + using basic_json_decode_options::enable_str_to_neginf; + using basic_json_decode_options::nan_to_str; + using basic_json_decode_options::inf_to_str; + using basic_json_decode_options::neginf_to_str; + using basic_json_decode_options::nan_to_num; + using basic_json_decode_options::inf_to_num; + using basic_json_decode_options::neginf_to_num; + + using basic_json_decode_options::lossless_number; + + using basic_json_encode_options::byte_string_format; + using basic_json_encode_options::bigint_format; + using basic_json_encode_options::object_object_line_splits; + using basic_json_encode_options::array_object_line_splits; + using basic_json_encode_options::object_array_line_splits; + using basic_json_encode_options::array_array_line_splits; + using basic_json_encode_options::indent_size; + using basic_json_encode_options::spaces_around_colon; + using basic_json_encode_options::spaces_around_comma; + using basic_json_encode_options::pad_inside_object_braces; + using basic_json_encode_options::pad_inside_array_brackets; + using basic_json_encode_options::new_line_chars; + using basic_json_encode_options::line_length_limit; + using basic_json_encode_options::float_format; + using basic_json_encode_options::precision; + using basic_json_encode_options::escape_all_non_ascii; + using basic_json_encode_options::escape_solidus; +public: + +// Constructors + + basic_json_options() = default; + basic_json_options(const basic_json_options&) = default; + basic_json_options(basic_json_options&&) = default; + basic_json_options& operator=(const basic_json_options&) = default; + basic_json_options& operator=(basic_json_options&&) = default; + + basic_json_options& nan_to_num(const string_type& value) + { + this->enable_nan_to_num_ = true; + this->nan_to_str_.clear(); + this->nan_to_num_ = value; + return *this; + } + + basic_json_options& inf_to_num(const string_type& value) + { + this->enable_inf_to_num_ = true; + this->inf_to_str_.clear(); + this->inf_to_num_ = value; + return *this; + } + + basic_json_options& neginf_to_num(const string_type& value) + { + this->enable_neginf_to_num_ = true; + this->neginf_to_str_.clear(); + this->neginf_to_num_ = value; + return *this; + } + + basic_json_options& nan_to_str(const string_type& value, bool enable_inverse = true) + { + this->enable_nan_to_str_ = true; + this->enable_str_to_nan_ = enable_inverse; + this->nan_to_num_.clear(); + this->nan_to_str_ = value; + return *this; + } + + basic_json_options& inf_to_str(const string_type& value, bool enable_inverse = true) + { + this->enable_inf_to_str_ = true; + this->enable_inf_to_str_ = enable_inverse; + this->inf_to_num_.clear(); + this->inf_to_str_ = value; + return *this; + } + + basic_json_options& neginf_to_str(const string_type& value, bool enable_inverse = true) + { + this->enable_neginf_to_str_ = true; + this->enable_neginf_to_str_ = enable_inverse; + this->neginf_to_num_.clear(); + this->neginf_to_str_ = value; + return *this; + } + + JSONCONS_DEPRECATED_MSG("Instead, use inf_to_num(const string_type&) or inf_to_str(const string_type&)") + basic_json_options& replace_inf(bool replace) + { + this->can_read_pos_inf_replacement_ = replace; + this->can_read_neg_inf_replacement_ = replace; + return *this; + } + + JSONCONS_DEPRECATED_MSG("Instead, use inf_to_num(const string_type&) or inf_to_str(const string_type&)") + basic_json_options& replace_pos_inf(bool replace) + { + this->can_read_pos_inf_replacement_ = replace; + return *this; + } + + JSONCONS_DEPRECATED_MSG("Instead, use neginf_to_num(const string_type&) or neginf_to_str(const string_type&)") + basic_json_options& replace_neg_inf(bool replace) + { + this->can_read_neg_inf_replacement_ = replace; + return *this; + } + + JSONCONS_DEPRECATED_MSG("Instead, use nan_to_num(const string_type&) or nan_to_str(const string_type&)") + basic_json_options& nan_replacement(const string_type& value) + { + this->nan_replacement_ = value; + + this->can_read_nan_replacement_ = is_string(value); + + return *this; + } + + JSONCONS_DEPRECATED_MSG("Instead, use inf_to_num(const string_type&) or inf_to_str(const string_type&)") + basic_json_options& pos_inf_replacement(const string_type& value) + { + this->pos_inf_replacement_ = value; + this->can_read_pos_inf_replacement_ = is_string(value); + return *this; + } + + JSONCONS_DEPRECATED_MSG("Instead, use neginf_to_num(const string_type&) or neginf_to_str(const string_type&)") + basic_json_options& neg_inf_replacement(const string_type& value) + { + this->neg_inf_replacement_ = value; + this->can_read_neg_inf_replacement_ = is_string(value); + return *this; + } + + basic_json_options& byte_string_format(byte_string_chars_format value) {this->byte_string_format_ = value; return *this;} + + basic_json_options& bigint_format(bigint_chars_format value) {this->bigint_format_ = value; return *this;} + + basic_json_options& object_object_line_splits(line_split_kind value) {this->object_object_line_splits_ = value; return *this;} + + basic_json_options& array_object_line_splits(line_split_kind value) {this->array_object_line_splits_ = value; return *this;} + + basic_json_options& object_array_line_splits(line_split_kind value) {this->object_array_line_splits_ = value; return *this;} + + basic_json_options& array_array_line_splits(line_split_kind value) {this->array_array_line_splits_ = value; return *this;} + + basic_json_options& indent_size(uint8_t value) + { + this->indent_size_ = value; + return *this; + } + + basic_json_options& spaces_around_colon(spaces_option value) + { + this->spaces_around_colon_ = value; + return *this; + } + + basic_json_options& spaces_around_comma(spaces_option value) + { + this->spaces_around_comma_ = value; + return *this; + } + + basic_json_options& pad_inside_object_braces(bool value) + { + this->pad_inside_object_braces_ = value; + return *this; + } + + basic_json_options& pad_inside_array_brackets(bool value) + { + this->pad_inside_array_brackets_ = value; + return *this; + } + + basic_json_options& new_line_chars(const string_type& value) + { + this->new_line_chars_ = value; + return *this; + } + + basic_json_options& lossless_number(bool value) + { + this->lossless_number_ = value; + return *this; + } + + basic_json_options& line_length_limit(std::size_t value) + { + this->line_length_limit_ = value; + return *this; + } + + basic_json_options& float_format(float_chars_format value) + { + this->float_format_ = value; + return *this; + } + + basic_json_options& precision(int8_t value) + { + this->precision_ = value; + return *this; + } + + basic_json_options& escape_all_non_ascii(bool value) + { + this->escape_all_non_ascii_ = value; + return *this; + } + + basic_json_options& escape_solidus(bool value) + { + this->escape_solidus_ = value; + return *this; + } + + basic_json_options& max_nesting_depth(int value) + { + this->max_nesting_depth_ = value; + return *this; + } + +#if !defined(JSONCONS_NO_DEPRECATED) + JSONCONS_DEPRECATED_MSG("Instead, use bigint_format(bigint_chars_format)") + basic_json_options& big_integer_format(bigint_chars_format value) {this->bigint_format_ = value; return *this;} + + JSONCONS_DEPRECATED_MSG("Instead, use bigint_format(bigint_chars_format)") + basic_json_options& bignum_format(bigint_chars_format value) {this->bigint_format_ = value; return *this;} + + JSONCONS_DEPRECATED_MSG("Instead, use float_format(float_chars_format)") + basic_json_options& floating_point_format(float_chars_format value) + { + this->float_format_ = value; + return *this; + } + + JSONCONS_DEPRECATED_MSG("Instead, use lossless_number(bool)") + basic_json_options& dec_to_str(bool value) + { + this->lossless_number_ = value; + return *this; + } + + JSONCONS_DEPRECATED_MSG("Instead, use indent_size(uint8_t_t)") + basic_json_options& indent(uint8_t value) + { + return indent_size(value); + } + + JSONCONS_DEPRECATED_MSG("Instead, use object_object_line_splits(line_split_kind)") + basic_json_options& object_object_split_lines(line_split_kind value) {this->object_object_line_splits_ = value; return *this;} + + JSONCONS_DEPRECATED_MSG("Instead, use array_object_line_splits(line_split_kind)") + basic_json_options& array_object_split_lines(line_split_kind value) {this->array_object_line_splits_ = value; return *this;} + + JSONCONS_DEPRECATED_MSG("Instead, use object_array_line_splits(line_split_kind)") + basic_json_options& object_array_split_lines(line_split_kind value) {this->object_array_line_splits_ = value; return *this;} + + JSONCONS_DEPRECATED_MSG("Instead, use array_array_line_splits(line_split_kind)") + basic_json_options& array_array_split_lines(line_split_kind value) {this->array_array_line_splits_ = value; return *this;} +#endif +private: + enum class input_state {initial,begin_quote,character,end_quote,escape,error}; + bool is_string(const string_type& s) const + { + input_state state = input_state::initial; + for (char_type c : s) + { + switch (c) + { + case '\t': case ' ': case '\n': case'\r': + break; + case '\\': + state = input_state::escape; + break; + case '\"': + switch (state) + { + case input_state::initial: + state = input_state::begin_quote; + break; + case input_state::begin_quote: + state = input_state::end_quote; + break; + case input_state::character: + state = input_state::end_quote; + break; + case input_state::end_quote: + state = input_state::error; + break; + case input_state::escape: + state = input_state::character; + break; + default: + state = input_state::character; + break; + } + break; + default: + break; + } + + } + return state == input_state::end_quote; + } +}; + +using json_options = basic_json_options; +using wjson_options = basic_json_options; + +#if !defined(JSONCONS_NO_DEPRECATED) +JSONCONS_DEPRECATED_MSG("json_options") typedef json_options output_format; +JSONCONS_DEPRECATED_MSG("wjson_options") typedef wjson_options woutput_format; +JSONCONS_DEPRECATED_MSG("json_options") typedef json_options serialization_options; +JSONCONS_DEPRECATED_MSG("wjson_options") typedef wjson_options wserialization_options; +JSONCONS_DEPRECATED_MSG("json_options") typedef json_options json_serializing_options; +JSONCONS_DEPRECATED_MSG("wjson_options") typedef wjson_options wjson_serializing_options; +#endif + +} +#endif diff --git a/include/jsoncons/json_parser.hpp b/include/jsoncons/json_parser.hpp new file mode 100644 index 0000000..4ba9bf1 --- /dev/null +++ b/include/jsoncons/json_parser.hpp @@ -0,0 +1,2871 @@ +// Copyright 2015 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSON_PARSER_HPP +#define JSONCONS_JSON_PARSER_HPP + +#include // std::allocator +#include +#include +#include +#include +#include +#include // std::numeric_limits +#include // std::function +#include +#include +#include +#include +#include +#include + +#define JSONCONS_ILLEGAL_CONTROL_CHARACTER \ + case 0x00:case 0x01:case 0x02:case 0x03:case 0x04:case 0x05:case 0x06:case 0x07:case 0x08:case 0x0b: \ + case 0x0c:case 0x0e:case 0x0f:case 0x10:case 0x11:case 0x12:case 0x13:case 0x14:case 0x15:case 0x16: \ + case 0x17:case 0x18:case 0x19:case 0x1a:case 0x1b:case 0x1c:case 0x1d:case 0x1e:case 0x1f + +namespace jsoncons { + +namespace detail { + +} + +enum class json_parse_state : uint8_t +{ + root, + start, + accept, + slash, + slash_slash, + slash_star, + slash_star_star, + expect_comma_or_end, + object, + expect_member_name_or_end, + expect_member_name, + expect_colon, + expect_value_or_end, + expect_value, + array, + string, + member_name, + escape, + escape_u1, + escape_u2, + escape_u3, + escape_u4, + escape_expect_surrogate_pair1, + escape_expect_surrogate_pair2, + escape_u5, + escape_u6, + escape_u7, + escape_u8, + minus, + zero, + integer, + fraction1, + fraction2, + exp1, + exp2, + exp3, + n, + nu, + nul, + t, + tr, + tru, + f, + fa, + fal, + fals, + cr, + done +}; + +struct default_json_parsing +{ + bool operator()(json_errc ec, const ser_context&) noexcept + { + if (ec == json_errc::illegal_comment) + { + return true; // Recover, allow comments + } + else + { + return false; + } + } +}; + +struct strict_json_parsing +{ + bool operator()(json_errc, const ser_context&) noexcept + { + return false; + } +}; + +#if !defined(JSONCONS_NO_DEPRECATED) +JSONCONS_DEPRECATED_MSG("Instead, use default_json_parsing") typedef default_json_parsing default_parse_error_handler; +JSONCONS_DEPRECATED_MSG("Instead, use strict_json_parsing") typedef strict_json_parsing strict_parse_error_handler; +#endif + +template > +class basic_json_parser : public ser_context +{ +public: + using char_type = CharT; + using string_view_type = typename basic_json_visitor::string_view_type; +private: + struct string_maps_to_double + { + string_view_type s; + + bool operator()(const std::pair& val) const + { + return val.first == s; + } + }; + + using temp_allocator_type = TempAllocator; + using char_allocator_type = typename std::allocator_traits:: template rebind_alloc; + using parse_state_allocator_type = typename std::allocator_traits:: template rebind_alloc; + + static constexpr std::size_t initial_string_buffer_capacity_ = 1024; + static constexpr std::size_t default_initial_stack_capacity_ = 100; + + basic_json_decode_options options_; + + std::function err_handler_; + int initial_stack_capacity_; + int nesting_depth_; + uint32_t cp_; + uint32_t cp2_; + std::size_t line_; + std::size_t position_; + std::size_t mark_position_; + std::size_t saved_position_; + const char_type* begin_input_; + const char_type* end_input_; + const char_type* input_ptr_; + json_parse_state state_; + bool more_; + bool done_; + + std::basic_string,char_allocator_type> string_buffer_; + jsoncons::detail::chars_to to_double_; + + std::vector state_stack_; + std::vector> string_double_map_; + + // Noncopyable and nonmoveable + basic_json_parser(const basic_json_parser&) = delete; + basic_json_parser& operator=(const basic_json_parser&) = delete; + +public: + basic_json_parser(const TempAllocator& alloc = TempAllocator()) + : basic_json_parser(basic_json_decode_options(), default_json_parsing(), alloc) + { + } + + basic_json_parser(std::function err_handler, + const TempAllocator& alloc = TempAllocator()) + : basic_json_parser(basic_json_decode_options(), err_handler, alloc) + { + } + + basic_json_parser(const basic_json_decode_options& options, + const TempAllocator& alloc = TempAllocator()) + : basic_json_parser(options, default_json_parsing(), alloc) + { + } + + basic_json_parser(const basic_json_decode_options& options, + std::function err_handler, + const TempAllocator& alloc = TempAllocator()) + : options_(options), + err_handler_(err_handler), + initial_stack_capacity_(default_initial_stack_capacity_), + nesting_depth_(0), + cp_(0), + cp2_(0), + line_(1), + position_(0), + mark_position_(0), + saved_position_(0), + begin_input_(nullptr), + end_input_(nullptr), + input_ptr_(nullptr), + state_(json_parse_state::start), + more_(true), + done_(false), + string_buffer_(alloc), + state_stack_(alloc) + { + string_buffer_.reserve(initial_string_buffer_capacity_); + + state_stack_.reserve(initial_stack_capacity_); + push_state(json_parse_state::root); + + if (options_.enable_str_to_nan()) + { + string_double_map_.emplace_back(options_.nan_to_str(),std::nan("")); + } + if (options_.enable_str_to_inf()) + { + string_double_map_.emplace_back(options_.inf_to_str(),std::numeric_limits::infinity()); + } + if (options_.enable_str_to_neginf()) + { + string_double_map_.emplace_back(options_.neginf_to_str(),-std::numeric_limits::infinity()); + } + } + + bool source_exhausted() const + { + return input_ptr_ == end_input_; + } + + ~basic_json_parser() noexcept + { + } + + json_parse_state parent() const + { + JSONCONS_ASSERT(state_stack_.size() >= 1); + return state_stack_.back(); + } + + bool done() const + { + return done_; + } + + bool enter() const + { + return state_ == json_parse_state::start; + } + + bool accept() const + { + return state_ == json_parse_state::accept || done_; + } + + bool stopped() const + { + return !more_; + } + + json_parse_state state() const + { + return state_; + } + + bool finished() const + { + return !more_ && state_ != json_parse_state::accept; + } + + const char_type* first() const + { + return begin_input_; + } + + const char_type* current() const + { + return input_ptr_; + } + + const char_type* last() const + { + return end_input_; + } + + void skip_space() + { + const char_type* local_input_end = end_input_; + while (input_ptr_ != local_input_end) + { + switch (*input_ptr_) + { + case ' ': + case '\t': + ++input_ptr_; + ++position_; + break; + case '\r': + push_state(state_); + ++input_ptr_; + ++position_; + state_ = json_parse_state::cr; + return; + case '\n': + ++input_ptr_; + ++line_; + ++position_; + mark_position_ = position_; + return; + default: + return; + } + } + } + + void skip_whitespace() + { + const char_type* local_input_end = end_input_; + + while (input_ptr_ != local_input_end) + { + switch (state_) + { + case json_parse_state::cr: + ++line_; + ++position_; + mark_position_ = position_; + switch (*input_ptr_) + { + case '\n': + ++input_ptr_; + ++position_; + state_ = pop_state(); + break; + default: + state_ = pop_state(); + break; + } + break; + + default: + switch (*input_ptr_) + { + case ' ': + case '\t': + case '\n': + case '\r': + skip_space(); + break; + default: + return; + } + break; + } + } + } + + void begin_object(basic_json_visitor& visitor, std::error_code& ec) + { + if (JSONCONS_UNLIKELY(++nesting_depth_ > options_.max_nesting_depth())) + { + more_ = err_handler_(json_errc::max_nesting_depth_exceeded, *this); + if (!more_) + { + ec = json_errc::max_nesting_depth_exceeded; + return; + } + } + + push_state(json_parse_state::object); + state_ = json_parse_state::expect_member_name_or_end; + more_ = visitor.begin_object(semantic_tag::none, *this, ec); + } + + void end_object(basic_json_visitor& visitor, std::error_code& ec) + { + if (JSONCONS_UNLIKELY(nesting_depth_ < 1)) + { + err_handler_(json_errc::unexpected_rbrace, *this); + ec = json_errc::unexpected_rbrace; + more_ = false; + return; + } + --nesting_depth_; + state_ = pop_state(); + if (state_ == json_parse_state::object) + { + more_ = visitor.end_object(*this, ec); + } + else if (state_ == json_parse_state::array) + { + err_handler_(json_errc::expected_comma_or_rbracket, *this); + ec = json_errc::expected_comma_or_rbracket; + more_ = false; + return; + } + else + { + err_handler_(json_errc::unexpected_rbrace, *this); + ec = json_errc::unexpected_rbrace; + more_ = false; + return; + } + + if (parent() == json_parse_state::root) + { + state_ = json_parse_state::accept; + } + else + { + state_ = json_parse_state::expect_comma_or_end; + } + } + + void begin_array(basic_json_visitor& visitor, std::error_code& ec) + { + if (++nesting_depth_ > options_.max_nesting_depth()) + { + more_ = err_handler_(json_errc::max_nesting_depth_exceeded, *this); + if (!more_) + { + ec = json_errc::max_nesting_depth_exceeded; + return; + } + } + + push_state(json_parse_state::array); + state_ = json_parse_state::expect_value_or_end; + more_ = visitor.begin_array(semantic_tag::none, *this, ec); + } + + void end_array(basic_json_visitor& visitor, std::error_code& ec) + { + if (nesting_depth_ < 1) + { + err_handler_(json_errc::unexpected_rbracket, *this); + ec = json_errc::unexpected_rbracket; + more_ = false; + return; + } + --nesting_depth_; + state_ = pop_state(); + if (state_ == json_parse_state::array) + { + more_ = visitor.end_array(*this, ec); + } + else if (state_ == json_parse_state::object) + { + err_handler_(json_errc::expected_comma_or_rbrace, *this); + ec = json_errc::expected_comma_or_rbrace; + more_ = false; + return; + } + else + { + err_handler_(json_errc::unexpected_rbracket, *this); + ec = json_errc::unexpected_rbracket; + more_ = false; + return; + } + if (parent() == json_parse_state::root) + { + state_ = json_parse_state::accept; + } + else + { + state_ = json_parse_state::expect_comma_or_end; + } + } + + void reinitialize() + { + reset(); + cp_ = 0; + cp2_ = 0; + saved_position_ = 0; + begin_input_ = nullptr; + end_input_ = nullptr; + input_ptr_ = nullptr; + string_buffer_.clear(); + } + + void reset() + { + state_stack_.clear(); + state_stack_.reserve(initial_stack_capacity_); + push_state(json_parse_state::root); + state_ = json_parse_state::start; + more_ = true; + done_ = false; + line_ = 1; + position_ = 0; + mark_position_ = 0; + nesting_depth_ = 0; + } + + void restart() + { + more_ = true; + } + + void check_done() + { + std::error_code ec; + check_done(ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec,line_,column())); + } + } + + void check_done(std::error_code& ec) + { + for (; input_ptr_ != end_input_; ++input_ptr_) + { + char_type curr_char_ = *input_ptr_; + switch (curr_char_) + { + case '\n': + case '\r': + case '\t': + case ' ': + break; + default: + more_ = err_handler_(json_errc::extra_character, *this); + if (!more_) + { + ec = json_errc::extra_character; + return; + } + break; + } + } + } + + void update(const string_view_type sv) + { + update(sv.data(),sv.length()); + } + + void update(const char_type* data, std::size_t length) + { + begin_input_ = data; + end_input_ = data + length; + input_ptr_ = begin_input_; + } + + void parse_some(basic_json_visitor& visitor) + { + std::error_code ec; + parse_some(visitor, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec,line_,column())); + } + } + + void parse_some(basic_json_visitor& visitor, std::error_code& ec) + { + parse_some_(visitor, ec); + } + + void finish_parse(basic_json_visitor& visitor) + { + std::error_code ec; + finish_parse(visitor, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec,line_,column())); + } + } + + void finish_parse(basic_json_visitor& visitor, std::error_code& ec) + { + while (!finished()) + { + parse_some(visitor, ec); + } + } + + void parse_some_(basic_json_visitor& visitor, std::error_code& ec) + { + if (state_ == json_parse_state::accept) + { + visitor.flush(); + done_ = true; + state_ = json_parse_state::done; + more_ = false; + return; + } + const char_type* local_input_end = end_input_; + + if (input_ptr_ == local_input_end && more_) + { + switch (state_) + { + case json_parse_state::zero: + case json_parse_state::integer: + end_integer_value(visitor, ec); + if (ec) return; + break; + case json_parse_state::fraction2: + end_fraction_value(visitor, ec); + if (ec) return; + break; + case json_parse_state::exp3: + end_fraction_value(visitor, ec); + if (ec) return; + break; + case json_parse_state::accept: + visitor.flush(); + done_ = true; + state_ = json_parse_state::done; + more_ = false; + break; + case json_parse_state::start: + case json_parse_state::done: + more_ = false; + break; + case json_parse_state::cr: + state_ = pop_state(); + break; + default: + err_handler_(json_errc::unexpected_eof, *this); + ec = json_errc::unexpected_eof; + more_ = false; + return; + } + } + + while ((input_ptr_ < local_input_end) && more_) + { + switch (state_) + { + case json_parse_state::accept: + visitor.flush(); + done_ = true; + state_ = json_parse_state::done; + more_ = false; + break; + case json_parse_state::cr: + ++line_; + mark_position_ = position_; + switch (*input_ptr_) + { + case '\n': + ++input_ptr_; + ++position_; + state_ = pop_state(); + break; + default: + state_ = pop_state(); + break; + } + break; + case json_parse_state::start: + { + switch (*input_ptr_) + { + JSONCONS_ILLEGAL_CONTROL_CHARACTER: + more_ = err_handler_(json_errc::illegal_control_character, *this); + if (!more_) + { + ec = json_errc::illegal_control_character; + return; + } + break; + case '\r': + push_state(state_); + ++input_ptr_; + ++position_; + state_ = json_parse_state::cr; + break; + case '\n': + ++input_ptr_; + ++line_; + ++position_; + mark_position_ = position_; + break; + case ' ':case '\t': + skip_space(); + break; + case '/': + ++input_ptr_; + ++position_; + push_state(state_); + state_ = json_parse_state::slash; + break; + case '{': + begin_object(visitor, ec); + if (ec) return; + ++input_ptr_; + ++position_; + break; + case '[': + begin_array(visitor, ec); + if (ec) return; + ++input_ptr_; + ++position_; + break; + case '\"': + state_ = json_parse_state::string; + ++input_ptr_; + ++position_; + string_buffer_.clear(); + parse_string(visitor, ec); + if (ec) return; + break; + case '-': + string_buffer_.clear(); + string_buffer_.push_back('-'); + ++input_ptr_; + ++position_; + state_ = json_parse_state::minus; + parse_number(visitor, ec); + if (ec) {return;} + break; + case '0': + string_buffer_.clear(); + string_buffer_.push_back(static_cast(*input_ptr_)); + state_ = json_parse_state::zero; + ++input_ptr_; + ++position_; + parse_number(visitor, ec); + if (ec) {return;} + break; + case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': + string_buffer_.clear(); + string_buffer_.push_back(static_cast(*input_ptr_)); + ++input_ptr_; + ++position_; + state_ = json_parse_state::integer; + parse_number(visitor, ec); + if (ec) {return;} + break; + case 'n': + parse_null(visitor, ec); + if (ec) {return;} + break; + case 't': + parse_true(visitor, ec); + if (ec) {return;} + break; + case 'f': + parse_false(visitor, ec); + if (ec) {return;} + break; + case '}': + err_handler_(json_errc::unexpected_rbrace, *this); + ec = json_errc::unexpected_rbrace; + more_ = false; + return; + case ']': + err_handler_(json_errc::unexpected_rbracket, *this); + ec = json_errc::unexpected_rbracket; + more_ = false; + return; + default: + err_handler_(json_errc::syntax_error, *this); + ec = json_errc::syntax_error; + more_ = false; + return; + } + } + break; + + case json_parse_state::expect_comma_or_end: + { + switch (*input_ptr_) + { + JSONCONS_ILLEGAL_CONTROL_CHARACTER: + more_ = err_handler_(json_errc::illegal_control_character, *this); + if (!more_) + { + ec = json_errc::illegal_control_character; + return; + } + ++input_ptr_; + ++position_; + break; + case '\r': + ++input_ptr_; + ++position_; + push_state(state_); + state_ = json_parse_state::cr; + break; + case '\n': + ++input_ptr_; + ++line_; + ++position_; + mark_position_ = position_; + break; + case ' ':case '\t': + skip_space(); + break; + case '/': + ++input_ptr_; + ++position_; + push_state(state_); + state_ = json_parse_state::slash; + break; + case '}': + end_object(visitor, ec); + if (ec) return; + ++input_ptr_; + ++position_; + break; + case ']': + end_array(visitor, ec); + if (ec) return; + ++input_ptr_; + ++position_; + break; + case ',': + begin_member_or_element(ec); + if (ec) return; + ++input_ptr_; + ++position_; + break; + default: + if (parent() == json_parse_state::array) + { + more_ = err_handler_(json_errc::expected_comma_or_rbracket, *this); + if (!more_) + { + ec = json_errc::expected_comma_or_rbracket; + return; + } + } + else if (parent() == json_parse_state::object) + { + more_ = err_handler_(json_errc::expected_comma_or_rbrace, *this); + if (!more_) + { + ec = json_errc::expected_comma_or_rbrace; + return; + } + } + ++input_ptr_; + ++position_; + break; + } + } + break; + case json_parse_state::expect_member_name_or_end: + { + switch (*input_ptr_) + { + JSONCONS_ILLEGAL_CONTROL_CHARACTER: + more_ = err_handler_(json_errc::illegal_control_character, *this); + if (!more_) + { + ec = json_errc::illegal_control_character; + return; + } + ++input_ptr_; + ++position_; + break; + case '\r': + ++input_ptr_; + ++position_; + push_state(state_); + state_ = json_parse_state::cr; + break; + case '\n': + ++input_ptr_; + ++line_; + ++position_; + mark_position_ = position_; + break; + case ' ':case '\t': + skip_space(); + break; + case '/': + ++input_ptr_; + ++position_; + push_state(state_); + state_ = json_parse_state::slash; + break; + case '}': + end_object(visitor, ec); + if (ec) return; + ++input_ptr_; + ++position_; + break; + case '\"': + ++input_ptr_; + ++position_; + push_state(json_parse_state::member_name); + state_ = json_parse_state::string; + string_buffer_.clear(); + parse_string(visitor, ec); + if (ec) return; + break; + case '\'': + more_ = err_handler_(json_errc::single_quote, *this); + if (!more_) + { + ec = json_errc::single_quote; + return; + } + ++input_ptr_; + ++position_; + break; + default: + more_ = err_handler_(json_errc::expected_key, *this); + if (!more_) + { + ec = json_errc::expected_key; + return; + } + ++input_ptr_; + ++position_; + break; + } + } + break; + case json_parse_state::expect_member_name: + { + switch (*input_ptr_) + { + JSONCONS_ILLEGAL_CONTROL_CHARACTER: + more_ = err_handler_(json_errc::illegal_control_character, *this); + if (!more_) + { + ec = json_errc::illegal_control_character; + return; + } + ++input_ptr_; + ++position_; + break; + case '\r': + ++input_ptr_; + ++position_; + push_state(state_); + state_ = json_parse_state::cr; + break; + case '\n': + ++input_ptr_; + ++line_; + ++position_; + mark_position_ = position_; + break; + case ' ':case '\t': + skip_space(); + break; + case '/': + ++input_ptr_; + ++position_; + push_state(state_); + state_ = json_parse_state::slash; + break; + case '\"': + ++input_ptr_; + ++position_; + push_state(json_parse_state::member_name); + state_ = json_parse_state::string; + string_buffer_.clear(); + parse_string(visitor, ec); + if (ec) return; + break; + case '}': + more_ = err_handler_(json_errc::extra_comma, *this); + if (!more_) + { + ec = json_errc::extra_comma; + return; + } + end_object(visitor, ec); // Recover + if (ec) return; + ++input_ptr_; + ++position_; + break; + case '\'': + more_ = err_handler_(json_errc::single_quote, *this); + if (!more_) + { + ec = json_errc::single_quote; + return; + } + ++input_ptr_; + ++position_; + break; + default: + more_ = err_handler_(json_errc::expected_key, *this); + if (!more_) + { + ec = json_errc::expected_key; + return; + } + ++input_ptr_; + ++position_; + break; + } + } + break; + case json_parse_state::expect_colon: + { + switch (*input_ptr_) + { + JSONCONS_ILLEGAL_CONTROL_CHARACTER: + more_ = err_handler_(json_errc::illegal_control_character, *this); + if (!more_) + { + ec = json_errc::illegal_control_character; + return; + } + ++input_ptr_; + ++position_; + break; + case '\r': + push_state(state_); + state_ = json_parse_state::cr; + ++input_ptr_; + ++position_; + break; + case '\n': + ++input_ptr_; + ++line_; + ++position_; + mark_position_ = position_; + break; + case ' ':case '\t': + skip_space(); + break; + case '/': + push_state(state_); + state_ = json_parse_state::slash; + ++input_ptr_; + ++position_; + break; + case ':': + state_ = json_parse_state::expect_value; + ++input_ptr_; + ++position_; + break; + default: + more_ = err_handler_(json_errc::expected_colon, *this); + if (!more_) + { + ec = json_errc::expected_colon; + return; + } + ++input_ptr_; + ++position_; + break; + } + } + break; + + case json_parse_state::expect_value: + { + switch (*input_ptr_) + { + JSONCONS_ILLEGAL_CONTROL_CHARACTER: + more_ = err_handler_(json_errc::illegal_control_character, *this); + if (!more_) + { + ec = json_errc::illegal_control_character; + return; + } + ++input_ptr_; + ++position_; + break; + case '\r': + push_state(state_); + ++input_ptr_; + ++position_; + state_ = json_parse_state::cr; + break; + case '\n': + ++input_ptr_; + ++line_; + ++position_; + mark_position_ = position_; + break; + case ' ':case '\t': + skip_space(); + break; + case '/': + push_state(state_); + ++input_ptr_; + ++position_; + state_ = json_parse_state::slash; + break; + case '{': + begin_object(visitor, ec); + if (ec) return; + ++input_ptr_; + ++position_; + break; + case '[': + begin_array(visitor, ec); + if (ec) return; + ++input_ptr_; + ++position_; + break; + case '\"': + ++input_ptr_; + ++position_; + state_ = json_parse_state::string; + string_buffer_.clear(); + parse_string(visitor, ec); + if (ec) return; + break; + case '-': + string_buffer_.clear(); + string_buffer_.push_back('-'); + ++input_ptr_; + ++position_; + state_ = json_parse_state::minus; + parse_number(visitor, ec); + if (ec) {return;} + break; + case '0': + string_buffer_.clear(); + string_buffer_.push_back(static_cast(*input_ptr_)); + ++input_ptr_; + ++position_; + state_ = json_parse_state::zero; + parse_number(visitor, ec); + if (ec) {return;} + break; + case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': + string_buffer_.clear(); + string_buffer_.push_back(static_cast(*input_ptr_)); + ++input_ptr_; + ++position_; + state_ = json_parse_state::integer; + parse_number(visitor, ec); + if (ec) {return;} + break; + case 'n': + parse_null(visitor, ec); + if (ec) {return;} + break; + case 't': + parse_true(visitor, ec); + if (ec) {return;} + break; + case 'f': + parse_false(visitor, ec); + if (ec) {return;} + break; + case ']': + if (parent() == json_parse_state::array) + { + more_ = err_handler_(json_errc::extra_comma, *this); + if (!more_) + { + ec = json_errc::extra_comma; + return; + } + end_array(visitor, ec); // Recover + if (ec) return; + } + else + { + more_ = err_handler_(json_errc::expected_value, *this); + if (!more_) + { + ec = json_errc::expected_value; + return; + } + } + ++input_ptr_; + ++position_; + break; + case '\'': + more_ = err_handler_(json_errc::single_quote, *this); + if (!more_) + { + ec = json_errc::single_quote; + return; + } + ++input_ptr_; + ++position_; + break; + default: + more_ = err_handler_(json_errc::expected_value, *this); + if (!more_) + { + ec = json_errc::expected_value; + return; + } + ++input_ptr_; + ++position_; + break; + } + } + break; + case json_parse_state::expect_value_or_end: + { + switch (*input_ptr_) + { + JSONCONS_ILLEGAL_CONTROL_CHARACTER: + more_ = err_handler_(json_errc::illegal_control_character, *this); + if (!more_) + { + ec = json_errc::illegal_control_character; + return; + } + ++input_ptr_; + ++position_; + break; + case '\r': + ++input_ptr_; + ++position_; + push_state(state_); + state_ = json_parse_state::cr; + break; + case '\n': + ++input_ptr_; + ++line_; + ++position_; + mark_position_ = position_; + break; + case ' ':case '\t': + skip_space(); + break; + case '/': + ++input_ptr_; + ++position_; + push_state(state_); + state_ = json_parse_state::slash; + break; + case '{': + begin_object(visitor, ec); + if (ec) return; + ++input_ptr_; + ++position_; + break; + case '[': + begin_array(visitor, ec); + if (ec) return; + ++input_ptr_; + ++position_; + break; + case ']': + end_array(visitor, ec); + if (ec) return; + ++input_ptr_; + ++position_; + break; + case '\"': + ++input_ptr_; + ++position_; + state_ = json_parse_state::string; + string_buffer_.clear(); + parse_string(visitor, ec); + if (ec) return; + break; + case '-': + string_buffer_.clear(); + string_buffer_.push_back('-'); + ++input_ptr_; + ++position_; + state_ = json_parse_state::minus; + parse_number(visitor, ec); + if (ec) {return;} + break; + case '0': + string_buffer_.clear(); + string_buffer_.push_back(static_cast(*input_ptr_)); + ++input_ptr_; + ++position_; + state_ = json_parse_state::zero; + parse_number(visitor, ec); + if (ec) {return;} + break; + case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': + string_buffer_.clear(); + string_buffer_.push_back(static_cast(*input_ptr_)); + ++input_ptr_; + ++position_; + state_ = json_parse_state::integer; + parse_number(visitor, ec); + if (ec) {return;} + break; + case 'n': + parse_null(visitor, ec); + if (ec) {return;} + break; + case 't': + parse_true(visitor, ec); + if (ec) {return;} + break; + case 'f': + parse_false(visitor, ec); + if (ec) {return;} + break; + case '\'': + more_ = err_handler_(json_errc::single_quote, *this); + if (!more_) + { + ec = json_errc::single_quote; + return; + } + ++input_ptr_; + ++position_; + break; + default: + more_ = err_handler_(json_errc::expected_value, *this); + if (!more_) + { + ec = json_errc::expected_value; + return; + } + ++input_ptr_; + ++position_; + break; + } + } + break; + case json_parse_state::string: + case json_parse_state::escape: + case json_parse_state::escape_u1: + case json_parse_state::escape_u2: + case json_parse_state::escape_u3: + case json_parse_state::escape_u4: + case json_parse_state::escape_expect_surrogate_pair1: + case json_parse_state::escape_expect_surrogate_pair2: + case json_parse_state::escape_u5: + case json_parse_state::escape_u6: + case json_parse_state::escape_u7: + case json_parse_state::escape_u8: + parse_string(visitor, ec); + if (ec) return; + break; + case json_parse_state::minus: + case json_parse_state::zero: + case json_parse_state::integer: + case json_parse_state::fraction1: + case json_parse_state::fraction2: + case json_parse_state::exp1: + case json_parse_state::exp2: + case json_parse_state::exp3: + parse_number(visitor, ec); + if (ec) return; + break; + case json_parse_state::t: + switch (*input_ptr_) + { + case 'r': + ++input_ptr_; + ++position_; + state_ = json_parse_state::tr; + break; + default: + err_handler_(json_errc::invalid_value, *this); + ec = json_errc::invalid_value; + more_ = false; + return; + } + break; + case json_parse_state::tr: + switch (*input_ptr_) + { + case 'u': + state_ = json_parse_state::tru; + break; + default: + err_handler_(json_errc::invalid_value, *this); + ec = json_errc::invalid_value; + more_ = false; + return; + } + ++input_ptr_; + ++position_; + break; + case json_parse_state::tru: + switch (*input_ptr_) + { + case 'e': + more_ = visitor.bool_value(true, semantic_tag::none, *this, ec); + if (parent() == json_parse_state::root) + { + state_ = json_parse_state::accept; + } + else + { + state_ = json_parse_state::expect_comma_or_end; + } + break; + default: + err_handler_(json_errc::invalid_value, *this); + ec = json_errc::invalid_value; + more_ = false; + return; + } + ++input_ptr_; + ++position_; + break; + case json_parse_state::f: + switch (*input_ptr_) + { + case 'a': + ++input_ptr_; + ++position_; + state_ = json_parse_state::fa; + break; + default: + err_handler_(json_errc::invalid_value, *this); + ec = json_errc::invalid_value; + more_ = false; + return; + } + break; + case json_parse_state::fa: + switch (*input_ptr_) + { + case 'l': + state_ = json_parse_state::fal; + break; + default: + err_handler_(json_errc::invalid_value, *this); + ec = json_errc::invalid_value; + more_ = false; + return; + } + ++input_ptr_; + ++position_; + break; + case json_parse_state::fal: + switch (*input_ptr_) + { + case 's': + state_ = json_parse_state::fals; + break; + default: + err_handler_(json_errc::invalid_value, *this); + ec = json_errc::invalid_value; + more_ = false; + return; + } + ++input_ptr_; + ++position_; + break; + case json_parse_state::fals: + switch (*input_ptr_) + { + case 'e': + more_ = visitor.bool_value(false, semantic_tag::none, *this, ec); + if (parent() == json_parse_state::root) + { + state_ = json_parse_state::accept; + } + else + { + state_ = json_parse_state::expect_comma_or_end; + } + break; + default: + err_handler_(json_errc::invalid_value, *this); + ec = json_errc::invalid_value; + more_ = false; + return; + } + ++input_ptr_; + ++position_; + break; + case json_parse_state::n: + switch (*input_ptr_) + { + case 'u': + ++input_ptr_; + ++position_; + state_ = json_parse_state::nu; + break; + default: + err_handler_(json_errc::invalid_value, *this); + ec = json_errc::invalid_value; + more_ = false; + return; + } + break; + case json_parse_state::nu: + switch (*input_ptr_) + { + case 'l': + state_ = json_parse_state::nul; + break; + default: + err_handler_(json_errc::invalid_value, *this); + ec = json_errc::invalid_value; + more_ = false; + return; + } + ++input_ptr_; + ++position_; + break; + case json_parse_state::nul: + switch (*input_ptr_) + { + case 'l': + more_ = visitor.null_value(semantic_tag::none, *this, ec); + if (parent() == json_parse_state::root) + { + state_ = json_parse_state::accept; + } + else + { + state_ = json_parse_state::expect_comma_or_end; + } + break; + default: + err_handler_(json_errc::invalid_value, *this); + ec = json_errc::invalid_value; + more_ = false; + return; + } + ++input_ptr_; + ++position_; + break; + case json_parse_state::slash: + { + switch (*input_ptr_) + { + case '*': + state_ = json_parse_state::slash_star; + more_ = err_handler_(json_errc::illegal_comment, *this); + if (!more_) + { + ec = json_errc::illegal_comment; + return; + } + break; + case '/': + state_ = json_parse_state::slash_slash; + more_ = err_handler_(json_errc::illegal_comment, *this); + if (!more_) + { + ec = json_errc::illegal_comment; + return; + } + break; + default: + more_ = err_handler_(json_errc::syntax_error, *this); + if (!more_) + { + ec = json_errc::syntax_error; + return; + } + break; + } + ++input_ptr_; + ++position_; + break; + } + case json_parse_state::slash_star: + { + switch (*input_ptr_) + { + case '\r': + push_state(state_); + ++input_ptr_; + ++position_; + state_ = json_parse_state::cr; + break; + case '\n': + ++input_ptr_; + ++line_; + ++position_; + mark_position_ = position_; + break; + case '*': + ++input_ptr_; + ++position_; + state_ = json_parse_state::slash_star_star; + break; + default: + ++input_ptr_; + ++position_; + break; + } + break; + } + case json_parse_state::slash_slash: + { + switch (*input_ptr_) + { + case '\r': + state_ = pop_state(); + break; + case '\n': + state_ = pop_state(); + break; + default: + ++input_ptr_; + ++position_; + } + break; + } + case json_parse_state::slash_star_star: + { + switch (*input_ptr_) + { + case '/': + state_ = pop_state(); + break; + default: + state_ = json_parse_state::slash_star; + break; + } + ++input_ptr_; + ++position_; + break; + } + default: + JSONCONS_ASSERT(false); + break; + } + } + } + + void parse_true(basic_json_visitor& visitor, std::error_code& ec) + { + saved_position_ = position_; + if (JSONCONS_LIKELY(end_input_ - input_ptr_ >= 4)) + { + if (*(input_ptr_+1) == 'r' && *(input_ptr_+2) == 'u' && *(input_ptr_+3) == 'e') + { + more_ = visitor.bool_value(true, semantic_tag::none, *this, ec); + input_ptr_ += 4; + position_ += 4; + if (parent() == json_parse_state::root) + { + state_ = json_parse_state::accept; + } + else + { + state_ = json_parse_state::expect_comma_or_end; + } + } + else + { + err_handler_(json_errc::invalid_value, *this); + ec = json_errc::invalid_value; + more_ = false; + return; + } + } + else + { + ++input_ptr_; + ++position_; + state_ = json_parse_state::t; + } + } + + void parse_null(basic_json_visitor& visitor, std::error_code& ec) + { + saved_position_ = position_; + if (JSONCONS_LIKELY(end_input_ - input_ptr_ >= 4)) + { + if (*(input_ptr_+1) == 'u' && *(input_ptr_+2) == 'l' && *(input_ptr_+3) == 'l') + { + more_ = visitor.null_value(semantic_tag::none, *this, ec); + input_ptr_ += 4; + position_ += 4; + if (parent() == json_parse_state::root) + { + state_ = json_parse_state::accept; + } + else + { + state_ = json_parse_state::expect_comma_or_end; + } + } + else + { + err_handler_(json_errc::invalid_value, *this); + ec = json_errc::invalid_value; + more_ = false; + return; + } + } + else + { + ++input_ptr_; + ++position_; + state_ = json_parse_state::n; + } + } + + void parse_false(basic_json_visitor& visitor, std::error_code& ec) + { + saved_position_ = position_; + if (JSONCONS_LIKELY(end_input_ - input_ptr_ >= 5)) + { + if (*(input_ptr_+1) == 'a' && *(input_ptr_+2) == 'l' && *(input_ptr_+3) == 's' && *(input_ptr_+4) == 'e') + { + more_ = visitor.bool_value(false, semantic_tag::none, *this, ec); + input_ptr_ += 5; + position_ += 5; + if (parent() == json_parse_state::root) + { + state_ = json_parse_state::accept; + } + else + { + state_ = json_parse_state::expect_comma_or_end; + } + } + else + { + err_handler_(json_errc::invalid_value, *this); + ec = json_errc::invalid_value; + more_ = false; + return; + } + } + else + { + ++input_ptr_; + ++position_; + state_ = json_parse_state::f; + } + } + + void parse_number(basic_json_visitor& visitor, std::error_code& ec) + { + saved_position_ = position_ - 1; + const char_type* local_input_end = end_input_; + + switch (state_) + { + case json_parse_state::minus: + goto minus_sign; + case json_parse_state::zero: + goto zero; + case json_parse_state::integer: + goto integer; + case json_parse_state::fraction1: + goto fraction1; + case json_parse_state::fraction2: + goto fraction2; + case json_parse_state::exp1: + goto exp1; + case json_parse_state::exp2: + goto exp2; + case json_parse_state::exp3: + goto exp3; + default: + JSONCONS_UNREACHABLE(); + } +minus_sign: + if (JSONCONS_UNLIKELY(input_ptr_ >= local_input_end)) // Buffer exhausted + { + state_ = json_parse_state::minus; + return; + } + switch (*input_ptr_) + { + case '0': + string_buffer_.push_back(static_cast(*input_ptr_)); + ++input_ptr_; + ++position_; + goto zero; + case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': + string_buffer_.push_back(static_cast(*input_ptr_)); + ++input_ptr_; + ++position_; + goto integer; + default: + err_handler_(json_errc::invalid_number, *this); + ec = json_errc::expected_value; + more_ = false; + return; + } +zero: + if (JSONCONS_UNLIKELY(input_ptr_ >= local_input_end)) // Buffer exhausted + { + state_ = json_parse_state::zero; + return; + } + switch (*input_ptr_) + { + case '\r': + end_integer_value(visitor, ec); + if (ec) return; + ++input_ptr_; + ++position_; + push_state(state_); + state_ = json_parse_state::cr; + return; + case '\n': + end_integer_value(visitor, ec); + if (ec) return; + ++input_ptr_; + ++line_; + ++position_; + mark_position_ = position_; + return; + case ' ':case '\t': + end_integer_value(visitor, ec); + if (ec) return; + skip_space(); + return; + case '/': + end_integer_value(visitor, ec); + if (ec) return; + ++input_ptr_; + ++position_; + push_state(state_); + state_ = json_parse_state::slash; + return; + case '}': + end_integer_value(visitor, ec); + if (ec) return; + state_ = json_parse_state::expect_comma_or_end; + return; + case ']': + end_integer_value(visitor, ec); + if (ec) return; + state_ = json_parse_state::expect_comma_or_end; + return; + case '.': + string_buffer_.push_back(to_double_.get_decimal_point()); + ++input_ptr_; + ++position_; + goto fraction1; + case 'e':case 'E': + string_buffer_.push_back(static_cast(*input_ptr_)); + ++input_ptr_; + ++position_; + goto exp1; + case ',': + end_integer_value(visitor, ec); + if (ec) return; + begin_member_or_element(ec); + if (ec) return; + ++input_ptr_; + ++position_; + return; + case '0': case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': + err_handler_(json_errc::leading_zero, *this); + ec = json_errc::leading_zero; + more_ = false; + state_ = json_parse_state::zero; + return; + default: + err_handler_(json_errc::invalid_number, *this); + ec = json_errc::invalid_number; + more_ = false; + state_ = json_parse_state::zero; + return; + } +integer: + if (JSONCONS_UNLIKELY(input_ptr_ >= local_input_end)) // Buffer exhausted + { + state_ = json_parse_state::integer; + return; + } + switch (*input_ptr_) + { + case '\r': + end_integer_value(visitor, ec); + if (ec) return; + push_state(state_); + ++input_ptr_; + ++position_; + state_ = json_parse_state::cr; + return; + case '\n': + end_integer_value(visitor, ec); + if (ec) return; + ++input_ptr_; + ++line_; + ++position_; + mark_position_ = position_; + return; + case ' ':case '\t': + end_integer_value(visitor, ec); + if (ec) return; + skip_space(); + return; + case '/': + end_integer_value(visitor, ec); + if (ec) return; + push_state(state_); + ++input_ptr_; + ++position_; + state_ = json_parse_state::slash; + return; + case '}': + end_integer_value(visitor, ec); + if (ec) return; + state_ = json_parse_state::expect_comma_or_end; + return; + case ']': + end_integer_value(visitor, ec); + if (ec) return; + state_ = json_parse_state::expect_comma_or_end; + return; + case '0': case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': + string_buffer_.push_back(static_cast(*input_ptr_)); + ++input_ptr_; + ++position_; + goto integer; + case '.': + string_buffer_.push_back(to_double_.get_decimal_point()); + ++input_ptr_; + ++position_; + goto fraction1; + case 'e':case 'E': + string_buffer_.push_back(static_cast(*input_ptr_)); + ++input_ptr_; + ++position_; + goto exp1; + case ',': + end_integer_value(visitor, ec); + if (ec) return; + begin_member_or_element(ec); + if (ec) return; + ++input_ptr_; + ++position_; + return; + default: + err_handler_(json_errc::invalid_number, *this); + ec = json_errc::invalid_number; + more_ = false; + state_ = json_parse_state::integer; + return; + } +fraction1: + if (JSONCONS_UNLIKELY(input_ptr_ >= local_input_end)) // Buffer exhausted + { + state_ = json_parse_state::fraction1; + return; + } + switch (*input_ptr_) + { + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': + string_buffer_.push_back(static_cast(*input_ptr_)); + ++input_ptr_; + ++position_; + goto fraction2; + default: + err_handler_(json_errc::invalid_number, *this); + ec = json_errc::invalid_number; + more_ = false; + state_ = json_parse_state::fraction1; + return; + } +fraction2: + if (JSONCONS_UNLIKELY(input_ptr_ >= local_input_end)) // Buffer exhausted + { + state_ = json_parse_state::fraction2; + return; + } + switch (*input_ptr_) + { + case '\r': + end_fraction_value(visitor, ec); + if (ec) return; + push_state(state_); + ++input_ptr_; + ++position_; + state_ = json_parse_state::cr; + return; + case '\n': + end_fraction_value(visitor, ec); + if (ec) return; + ++input_ptr_; + ++line_; + ++position_; + mark_position_ = position_; + return; + case ' ':case '\t': + end_fraction_value(visitor, ec); + if (ec) return; + skip_space(); + return; + case '/': + end_fraction_value(visitor, ec); + if (ec) return; + push_state(state_); + ++input_ptr_; + ++position_; + state_ = json_parse_state::slash; + return; + case '}': + end_fraction_value(visitor, ec); + if (ec) return; + state_ = json_parse_state::expect_comma_or_end; + return; + case ']': + end_fraction_value(visitor, ec); + if (ec) return; + state_ = json_parse_state::expect_comma_or_end; + return; + case ',': + end_fraction_value(visitor, ec); + if (ec) return; + begin_member_or_element(ec); + if (ec) return; + ++input_ptr_; + ++position_; + return; + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': + string_buffer_.push_back(static_cast(*input_ptr_)); + ++input_ptr_; + ++position_; + goto fraction2; + case 'e':case 'E': + string_buffer_.push_back(static_cast(*input_ptr_)); + ++input_ptr_; + ++position_; + goto exp1; + default: + err_handler_(json_errc::invalid_number, *this); + ec = json_errc::invalid_number; + more_ = false; + state_ = json_parse_state::fraction2; + return; + } +exp1: + if (JSONCONS_UNLIKELY(input_ptr_ >= local_input_end)) // Buffer exhausted + { + state_ = json_parse_state::exp1; + return; + } + switch (*input_ptr_) + { + case '+': + ++input_ptr_; + ++position_; + goto exp2; + case '-': + string_buffer_.push_back(static_cast(*input_ptr_)); + ++input_ptr_; + ++position_; + goto exp2; + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': + string_buffer_.push_back(static_cast(*input_ptr_)); + ++input_ptr_; + ++position_; + goto exp3; + default: + err_handler_(json_errc::invalid_number, *this); + ec = json_errc::expected_value; + more_ = false; + state_ = json_parse_state::exp1; + return; + } +exp2: + if (JSONCONS_UNLIKELY(input_ptr_ >= local_input_end)) // Buffer exhausted + { + state_ = json_parse_state::exp2; + return; + } + switch (*input_ptr_) + { + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': + string_buffer_.push_back(static_cast(*input_ptr_)); + ++input_ptr_; + ++position_; + goto exp3; + default: + err_handler_(json_errc::invalid_number, *this); + ec = json_errc::expected_value; + more_ = false; + state_ = json_parse_state::exp2; + return; + } + +exp3: + if (JSONCONS_UNLIKELY(input_ptr_ >= local_input_end)) // Buffer exhausted + { + state_ = json_parse_state::exp3; + return; + } + switch (*input_ptr_) + { + case '\r': + end_fraction_value(visitor, ec); + if (ec) return; + ++input_ptr_; + ++position_; + push_state(state_); + state_ = json_parse_state::cr; + return; + case '\n': + end_fraction_value(visitor, ec); + if (ec) return; + ++input_ptr_; + ++line_; + ++position_; + mark_position_ = position_; + return; + case ' ':case '\t': + end_fraction_value(visitor, ec); + if (ec) return; + skip_space(); + return; + case '/': + end_fraction_value(visitor, ec); + if (ec) return; + push_state(state_); + ++input_ptr_; + ++position_; + state_ = json_parse_state::slash; + return; + case '}': + end_fraction_value(visitor, ec); + if (ec) return; + state_ = json_parse_state::expect_comma_or_end; + return; + case ']': + end_fraction_value(visitor, ec); + if (ec) return; + state_ = json_parse_state::expect_comma_or_end; + return; + case ',': + end_fraction_value(visitor, ec); + if (ec) return; + begin_member_or_element(ec); + if (ec) return; + ++input_ptr_; + ++position_; + return; + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': + string_buffer_.push_back(static_cast(*input_ptr_)); + ++input_ptr_; + ++position_; + goto exp3; + default: + err_handler_(json_errc::invalid_number, *this); + ec = json_errc::invalid_number; + more_ = false; + state_ = json_parse_state::exp3; + return; + } + + JSONCONS_UNREACHABLE(); + } + + void parse_string(basic_json_visitor& visitor, std::error_code& ec) + { + saved_position_ = position_ - 1; + const char_type* local_input_end = end_input_; + const char_type* sb = input_ptr_; + + switch (state_) + { + case json_parse_state::string: + goto string_u1; + case json_parse_state::escape: + goto escape; + case json_parse_state::escape_u1: + goto escape_u1; + case json_parse_state::escape_u2: + goto escape_u2; + case json_parse_state::escape_u3: + goto escape_u3; + case json_parse_state::escape_u4: + goto escape_u4; + case json_parse_state::escape_expect_surrogate_pair1: + goto escape_expect_surrogate_pair1; + case json_parse_state::escape_expect_surrogate_pair2: + goto escape_expect_surrogate_pair2; + case json_parse_state::escape_u5: + goto escape_u5; + case json_parse_state::escape_u6: + goto escape_u6; + case json_parse_state::escape_u7: + goto escape_u7; + case json_parse_state::escape_u8: + goto escape_u8; + default: + JSONCONS_UNREACHABLE(); + } + +string_u1: + while (input_ptr_ < local_input_end) + { + switch (*input_ptr_) + { + JSONCONS_ILLEGAL_CONTROL_CHARACTER: + { + position_ += (input_ptr_ - sb + 1); + more_ = err_handler_(json_errc::illegal_control_character, *this); + if (!more_) + { + ec = json_errc::illegal_control_character; + state_ = json_parse_state::string; + return; + } + // recovery - skip + string_buffer_.append(sb,input_ptr_-sb); + ++input_ptr_; + state_ = json_parse_state::string; + return; + } + case '\r': + { + position_ += (input_ptr_ - sb + 1); + more_ = err_handler_(json_errc::illegal_character_in_string, *this); + if (!more_) + { + ec = json_errc::illegal_character_in_string; + state_ = json_parse_state::string; + return; + } + // recovery - keep + string_buffer_.append(sb, input_ptr_ - sb + 1); + ++input_ptr_; + push_state(state_); + state_ = json_parse_state::cr; + return; + } + case '\n': + { + ++line_; + ++position_; + mark_position_ = position_; + more_ = err_handler_(json_errc::illegal_character_in_string, *this); + if (!more_) + { + ec = json_errc::illegal_character_in_string; + state_ = json_parse_state::string; + return; + } + // recovery - keep + string_buffer_.append(sb, input_ptr_ - sb + 1); + ++input_ptr_; + return; + } + case '\t': + { + position_ += (input_ptr_ - sb + 1); + more_ = err_handler_(json_errc::illegal_character_in_string, *this); + if (!more_) + { + ec = json_errc::illegal_character_in_string; + state_ = json_parse_state::string; + return; + } + // recovery - keep + string_buffer_.append(sb, input_ptr_ - sb + 1); + ++input_ptr_; + state_ = json_parse_state::string; + return; + } + case '\\': + { + string_buffer_.append(sb,input_ptr_-sb); + position_ += (input_ptr_ - sb + 1); + ++input_ptr_; + goto escape; + } + case '\"': + { + if (string_buffer_.length() == 0) + { + end_string_value(sb,input_ptr_-sb, visitor, ec); + if (ec) {return;} + } + else + { + string_buffer_.append(sb,input_ptr_-sb); + end_string_value(string_buffer_.data(),string_buffer_.length(), visitor, ec); + if (ec) {return;} + } + position_ += (input_ptr_ - sb + 1); + ++input_ptr_; + return; + } + default: + break; + } + ++input_ptr_; + } + + // Buffer exhausted + { + string_buffer_.append(sb,input_ptr_-sb); + position_ += (input_ptr_ - sb + 1); + state_ = json_parse_state::string; + return; + } + +escape: + if (JSONCONS_UNLIKELY(input_ptr_ >= local_input_end)) // Buffer exhausted + { + state_ = json_parse_state::escape; + return; + } + switch (*input_ptr_) + { + case '\"': + string_buffer_.push_back('\"'); + sb = ++input_ptr_; + ++position_; + goto string_u1; + case '\\': + string_buffer_.push_back('\\'); + sb = ++input_ptr_; + ++position_; + goto string_u1; + case '/': + string_buffer_.push_back('/'); + sb = ++input_ptr_; + ++position_; + goto string_u1; + case 'b': + string_buffer_.push_back('\b'); + sb = ++input_ptr_; + ++position_; + goto string_u1; + case 'f': + string_buffer_.push_back('\f'); + sb = ++input_ptr_; + ++position_; + goto string_u1; + case 'n': + string_buffer_.push_back('\n'); + sb = ++input_ptr_; + ++position_; + goto string_u1; + case 'r': + string_buffer_.push_back('\r'); + sb = ++input_ptr_; + ++position_; + goto string_u1; + case 't': + string_buffer_.push_back('\t'); + sb = ++input_ptr_; + ++position_; + goto string_u1; + case 'u': + cp_ = 0; + ++input_ptr_; + ++position_; + goto escape_u1; + default: + err_handler_(json_errc::illegal_escaped_character, *this); + ec = json_errc::illegal_escaped_character; + more_ = false; + state_ = json_parse_state::escape; + return; + } + +escape_u1: + if (JSONCONS_UNLIKELY(input_ptr_ >= local_input_end)) // Buffer exhausted + { + state_ = json_parse_state::escape_u1; + return; + } + { + cp_ = append_to_codepoint(0, *input_ptr_, ec); + if (ec) + { + state_ = json_parse_state::escape_u1; + return; + } + ++input_ptr_; + ++position_; + goto escape_u2; + } + +escape_u2: + if (JSONCONS_UNLIKELY(input_ptr_ >= local_input_end)) // Buffer exhausted + { + state_ = json_parse_state::escape_u2; + return; + } + { + cp_ = append_to_codepoint(cp_, *input_ptr_, ec); + if (ec) + { + state_ = json_parse_state::escape_u2; + return; + } + ++input_ptr_; + ++position_; + goto escape_u3; + } + +escape_u3: + if (JSONCONS_UNLIKELY(input_ptr_ >= local_input_end)) // Buffer exhausted + { + state_ = json_parse_state::escape_u3; + return; + } + { + cp_ = append_to_codepoint(cp_, *input_ptr_, ec); + if (ec) + { + state_ = json_parse_state::escape_u3; + return; + } + ++input_ptr_; + ++position_; + goto escape_u4; + } + +escape_u4: + if (JSONCONS_UNLIKELY(input_ptr_ >= local_input_end)) // Buffer exhausted + { + state_ = json_parse_state::escape_u4; + return; + } + { + cp_ = append_to_codepoint(cp_, *input_ptr_, ec); + if (ec) + { + state_ = json_parse_state::escape_u4; + return; + } + if (unicode_traits::is_high_surrogate(cp_)) + { + ++input_ptr_; + ++position_; + goto escape_expect_surrogate_pair1; + } + else + { + unicode_traits::convert(&cp_, 1, string_buffer_); + sb = ++input_ptr_; + ++position_; + state_ = json_parse_state::string; + return; + } + } + +escape_expect_surrogate_pair1: + if (JSONCONS_UNLIKELY(input_ptr_ >= local_input_end)) // Buffer exhausted + { + state_ = json_parse_state::escape_expect_surrogate_pair1; + return; + } + { + switch (*input_ptr_) + { + case '\\': + cp2_ = 0; + ++input_ptr_; + ++position_; + goto escape_expect_surrogate_pair2; + default: + err_handler_(json_errc::expected_codepoint_surrogate_pair, *this); + ec = json_errc::expected_codepoint_surrogate_pair; + more_ = false; + state_ = json_parse_state::escape_expect_surrogate_pair1; + return; + } + } + +escape_expect_surrogate_pair2: + if (JSONCONS_UNLIKELY(input_ptr_ >= local_input_end)) // Buffer exhausted + { + state_ = json_parse_state::escape_expect_surrogate_pair2; + return; + } + { + switch (*input_ptr_) + { + case 'u': + ++input_ptr_; + ++position_; + goto escape_u5; + default: + err_handler_(json_errc::expected_codepoint_surrogate_pair, *this); + ec = json_errc::expected_codepoint_surrogate_pair; + more_ = false; + state_ = json_parse_state::escape_expect_surrogate_pair2; + return; + } + } + +escape_u5: + if (JSONCONS_UNLIKELY(input_ptr_ >= local_input_end)) // Buffer exhausted + { + state_ = json_parse_state::escape_u5; + return; + } + { + cp2_ = append_to_codepoint(0, *input_ptr_, ec); + if (ec) + { + state_ = json_parse_state::escape_u5; + return; + } + } + ++input_ptr_; + ++position_; + goto escape_u6; + +escape_u6: + if (JSONCONS_UNLIKELY(input_ptr_ >= local_input_end)) // Buffer exhausted + { + state_ = json_parse_state::escape_u6; + return; + } + { + cp2_ = append_to_codepoint(cp2_, *input_ptr_, ec); + if (ec) + { + state_ = json_parse_state::escape_u6; + return; + } + ++input_ptr_; + ++position_; + goto escape_u7; + } + +escape_u7: + if (JSONCONS_UNLIKELY(input_ptr_ >= local_input_end)) // Buffer exhausted + { + state_ = json_parse_state::escape_u7; + return; + } + { + cp2_ = append_to_codepoint(cp2_, *input_ptr_, ec); + if (ec) + { + state_ = json_parse_state::escape_u7; + return; + } + ++input_ptr_; + ++position_; + goto escape_u8; + } + +escape_u8: + if (JSONCONS_UNLIKELY(input_ptr_ >= local_input_end)) // Buffer exhausted + { + state_ = json_parse_state::escape_u8; + return; + } + { + cp2_ = append_to_codepoint(cp2_, *input_ptr_, ec); + if (ec) + { + state_ = json_parse_state::escape_u8; + return; + } + uint32_t cp = 0x10000 + ((cp_ & 0x3FF) << 10) + (cp2_ & 0x3FF); + unicode_traits::convert(&cp, 1, string_buffer_); + sb = ++input_ptr_; + ++position_; + goto string_u1; + } + + JSONCONS_UNREACHABLE(); + } + + void translate_conv_errc(unicode_traits::conv_errc result, std::error_code& ec) + { + switch (result) + { + case unicode_traits::conv_errc(): + break; + case unicode_traits::conv_errc::over_long_utf8_sequence: + more_ = err_handler_(json_errc::over_long_utf8_sequence, *this); + if (!more_) + { + ec = json_errc::over_long_utf8_sequence; + return; + } + break; + case unicode_traits::conv_errc::unpaired_high_surrogate: + more_ = err_handler_(json_errc::unpaired_high_surrogate, *this); + if (!more_) + { + ec = json_errc::unpaired_high_surrogate; + return; + } + break; + case unicode_traits::conv_errc::expected_continuation_byte: + more_ = err_handler_(json_errc::expected_continuation_byte, *this); + if (!more_) + { + ec = json_errc::expected_continuation_byte; + return; + } + break; + case unicode_traits::conv_errc::illegal_surrogate_value: + more_ = err_handler_(json_errc::illegal_surrogate_value, *this); + if (!more_) + { + ec = json_errc::illegal_surrogate_value; + return; + } + break; + default: + more_ = err_handler_(json_errc::illegal_codepoint, *this); + if (!more_) + { + ec = json_errc::illegal_codepoint; + return; + } + break; + } + } + +#if !defined(JSONCONS_NO_DEPRECATED) + + JSONCONS_DEPRECATED_MSG("Instead, use finish_parse(basic_json_visitor&)") + void end_parse(basic_json_visitor& visitor) + { + std::error_code ec; + finish_parse(visitor, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec,line_,column())); + } + } + + JSONCONS_DEPRECATED_MSG("Instead, use finish_parse(basic_json_visitor&, std::error_code&)") + void end_parse(basic_json_visitor& visitor, std::error_code& ec) + { + while (!finished()) + { + parse_some(visitor, ec); + } + } + + JSONCONS_DEPRECATED_MSG("Instead, use update(const char_type*, std::size_t)") + void set_source(const char_type* data, std::size_t length) + { + begin_input_ = data; + end_input_ = data + length; + input_ptr_ = begin_input_; + } +#endif + + std::size_t line() const override + { + return line_; + } + + std::size_t column() const override + { + return (position_ - mark_position_) + 1; + } + + std::size_t position() const override + { + return saved_position_; + } + + std::size_t offset() const + { + return input_ptr_ - begin_input_; + } +private: + + void end_integer_value(basic_json_visitor& visitor, std::error_code& ec) + { + if (string_buffer_[0] == '-') + { + end_negative_value(visitor, ec); + } + else + { + end_positive_value(visitor, ec); + } + } + + void end_negative_value(basic_json_visitor& visitor, std::error_code& ec) + { + int64_t val; + auto result = jsoncons::detail::to_integer_unchecked(string_buffer_.data(), string_buffer_.length(), val); + if (result) + { + more_ = visitor.int64_value(val, semantic_tag::none, *this, ec); + } + else // Must be overflow + { + more_ = visitor.string_value(string_buffer_, semantic_tag::bigint, *this, ec); + } + after_value(ec); + } + + void end_positive_value(basic_json_visitor& visitor, std::error_code& ec) + { + uint64_t val; + auto result = jsoncons::detail::to_integer_unchecked(string_buffer_.data(), string_buffer_.length(), val); + if (result) + { + more_ = visitor.uint64_value(val, semantic_tag::none, *this, ec); + } + else // Must be overflow + { + more_ = visitor.string_value(string_buffer_, semantic_tag::bigint, *this, ec); + } + after_value(ec); + } + + void end_fraction_value(basic_json_visitor& visitor, std::error_code& ec) + { + JSONCONS_TRY + { + if (options_.lossless_number()) + { + more_ = visitor.string_value(string_buffer_, semantic_tag::bigdec, *this, ec); + } + else + { + double d = to_double_(string_buffer_.c_str(), string_buffer_.length()); + more_ = visitor.double_value(d, semantic_tag::none, *this, ec); + } + } + JSONCONS_CATCH(...) + { + more_ = err_handler_(json_errc::invalid_number, *this); + if (!more_) + { + ec = json_errc::invalid_number; + return; + } + more_ = visitor.null_value(semantic_tag::none, *this, ec); // recovery + } + + after_value(ec); + } + + void end_string_value(const char_type* s, std::size_t length, basic_json_visitor& visitor, std::error_code& ec) + { + string_view_type sv(s, length); + auto result = unicode_traits::validate(s, length); + if (result.ec != unicode_traits::conv_errc()) + { + translate_conv_errc(result.ec,ec); + position_ += (result.ptr - s); + return; + } + switch (parent()) + { + case json_parse_state::member_name: + more_ = visitor.key(sv, *this, ec); + pop_state(); + state_ = json_parse_state::expect_colon; + break; + case json_parse_state::object: + case json_parse_state::array: + { + auto it = std::find_if(string_double_map_.begin(), string_double_map_.end(), string_maps_to_double{ sv }); + if (it != string_double_map_.end()) + { + more_ = visitor.double_value(it->second, semantic_tag::none, *this, ec); + } + else + { + more_ = visitor.string_value(sv, semantic_tag::none, *this, ec); + } + state_ = json_parse_state::expect_comma_or_end; + break; + } + case json_parse_state::root: + { + auto it = std::find_if(string_double_map_.begin(),string_double_map_.end(),string_maps_to_double{sv}); + if (it != string_double_map_.end()) + { + more_ = visitor.double_value(it->second, semantic_tag::none, *this, ec); + } + else + { + more_ = visitor.string_value(sv, semantic_tag::none, *this, ec); + } + state_ = json_parse_state::accept; + break; + } + default: + more_ = err_handler_(json_errc::syntax_error, *this); + if (!more_) + { + ec = json_errc::syntax_error; + return; + } + break; + } + } + + void begin_member_or_element(std::error_code& ec) + { + switch (parent()) + { + case json_parse_state::object: + state_ = json_parse_state::expect_member_name; + break; + case json_parse_state::array: + state_ = json_parse_state::expect_value; + break; + case json_parse_state::root: + break; + default: + more_ = err_handler_(json_errc::syntax_error, *this); + if (!more_) + { + ec = json_errc::syntax_error; + return; + } + break; + } + } + + void after_value(std::error_code& ec) + { + switch (parent()) + { + case json_parse_state::array: + case json_parse_state::object: + state_ = json_parse_state::expect_comma_or_end; + break; + case json_parse_state::root: + state_ = json_parse_state::accept; + break; + default: + more_ = err_handler_(json_errc::syntax_error, *this); + if (!more_) + { + ec = json_errc::syntax_error; + return; + } + break; + } + } + + void push_state(json_parse_state state) + { + state_stack_.push_back(state); + } + + json_parse_state pop_state() + { + JSONCONS_ASSERT(!state_stack_.empty()) + json_parse_state state = state_stack_.back(); + state_stack_.pop_back(); + return state; + } + + uint32_t append_to_codepoint(uint32_t cp, int c, std::error_code& ec) + { + cp *= 16; + if (c >= '0' && c <= '9') + { + cp += c - '0'; + } + else if (c >= 'a' && c <= 'f') + { + cp += c - 'a' + 10; + } + else if (c >= 'A' && c <= 'F') + { + cp += c - 'A' + 10; + } + else + { + more_ = err_handler_(json_errc::invalid_unicode_escape_sequence, *this); + if (!more_) + { + ec = json_errc::invalid_unicode_escape_sequence; + return cp; + } + } + return cp; + } +}; + +using json_parser = basic_json_parser; +using wjson_parser = basic_json_parser; + +} + +#endif + diff --git a/include/jsoncons/json_reader.hpp b/include/jsoncons/json_reader.hpp new file mode 100644 index 0000000..eeb351f --- /dev/null +++ b/include/jsoncons/json_reader.hpp @@ -0,0 +1,731 @@ +// Copyright 2015 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSON_READER_HPP +#define JSONCONS_JSON_READER_HPP + +#include // std::allocator +#include +#include +#include +#include +#include +#include // std::move +#include +#include +#include +#include +#include + +namespace jsoncons { + + // utf8_other_json_input_adapter + + template + class json_utf8_to_other_visitor_adaptor : public json_visitor + { + public: + using json_visitor::string_view_type; + private: + basic_default_json_visitor default_visitor_; + basic_json_visitor& other_visitor_; + //std::function err_handler_; + + // noncopyable and nonmoveable + json_utf8_to_other_visitor_adaptor(const json_utf8_to_other_visitor_adaptor&) = delete; + json_utf8_to_other_visitor_adaptor& operator=(const json_utf8_to_other_visitor_adaptor&) = delete; + + public: + json_utf8_to_other_visitor_adaptor() + : other_visitor_(default_visitor_) + { + } + + json_utf8_to_other_visitor_adaptor(basic_json_visitor& other_visitor/*, + std::function err_handler*/) + : other_visitor_(other_visitor)/*, + err_handler_(err_handler)*/ + { + } + + private: + + void visit_flush() override + { + other_visitor_.flush(); + } + + bool visit_begin_object(semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + return other_visitor_.begin_object(tag, context, ec); + } + + bool visit_end_object(const ser_context& context, std::error_code& ec) override + { + return other_visitor_.end_object(context, ec); + } + + bool visit_begin_array(semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + return other_visitor_.begin_array(tag, context, ec); + } + + bool visit_end_array(const ser_context& context, std::error_code& ec) override + { + return other_visitor_.end_array(context, ec); + } + + bool visit_key(const string_view_type& name, const ser_context& context, std::error_code& ec) override + { + std::basic_string target; + auto result = unicode_traits::convert( + name.data(), name.size(), target, + unicode_traits::conv_flags::strict); + if (result.ec != unicode_traits::conv_errc()) + { + JSONCONS_THROW(ser_error(result.ec,context.line(),context.column())); + } + return other_visitor_.key(target, context, ec); + } + + bool visit_string(const string_view_type& value, semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + std::basic_string target; + auto result = unicode_traits::convert( + value.data(), value.size(), target, + unicode_traits::conv_flags::strict); + if (result.ec != unicode_traits::conv_errc()) + { + ec = result.ec; + return false; + } + return other_visitor_.string_value(target, tag, context, ec); + } + + bool visit_int64(int64_t value, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + return other_visitor_.int64_value(value, tag, context, ec); + } + + bool visit_uint64(uint64_t value, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + return other_visitor_.uint64_value(value, tag, context, ec); + } + + bool visit_half(uint16_t value, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + return other_visitor_.half_value(value, tag, context, ec); + } + + bool visit_double(double value, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + return other_visitor_.double_value(value, tag, context, ec); + } + + bool visit_bool(bool value, semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + return other_visitor_.bool_value(value, tag, context, ec); + } + + bool visit_null(semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + return other_visitor_.null_value(tag, context, ec); + } + }; + + template,class Allocator=std::allocator> + class basic_json_reader + { + public: + using char_type = CharT; + using source_type = Source; + using string_view_type = jsoncons::basic_string_view; + private: + typedef typename std::allocator_traits:: template rebind_alloc char_allocator_type; + + static constexpr size_t default_max_buffer_size = 16384; + + json_source_adaptor source_; + basic_default_json_visitor default_visitor_; + basic_json_visitor& visitor_; + basic_json_parser parser_; + + // Noncopyable and nonmoveable + basic_json_reader(const basic_json_reader&) = delete; + basic_json_reader& operator=(const basic_json_reader&) = delete; + + public: + template + explicit basic_json_reader(Sourceable&& source, const Allocator& alloc = Allocator()) + : basic_json_reader(std::forward(source), + default_visitor_, + basic_json_decode_options(), + default_json_parsing(), + alloc) + { + } + + template + basic_json_reader(Sourceable&& source, + const basic_json_decode_options& options, + const Allocator& alloc = Allocator()) + : basic_json_reader(std::forward(source), + default_visitor_, + options, + default_json_parsing(), + alloc) + { + } + + template + basic_json_reader(Sourceable&& source, + std::function err_handler, + const Allocator& alloc = Allocator()) + : basic_json_reader(std::forward(source), + default_visitor_, + basic_json_decode_options(), + err_handler, + alloc) + { + } + + template + basic_json_reader(Sourceable&& source, + const basic_json_decode_options& options, + std::function err_handler, + const Allocator& alloc = Allocator()) + : basic_json_reader(std::forward(source), + default_visitor_, + options, + err_handler, + alloc) + { + } + + template + basic_json_reader(Sourceable&& source, + basic_json_visitor& visitor, + const Allocator& alloc = Allocator()) + : basic_json_reader(std::forward(source), + visitor, + basic_json_decode_options(), + default_json_parsing(), + alloc) + { + } + + template + basic_json_reader(Sourceable&& source, + basic_json_visitor& visitor, + const basic_json_decode_options& options, + const Allocator& alloc = Allocator()) + : basic_json_reader(std::forward(source), + visitor, + options, + default_json_parsing(), + alloc) + { + } + + template + basic_json_reader(Sourceable&& source, + basic_json_visitor& visitor, + std::function err_handler, + const Allocator& alloc = Allocator()) + : basic_json_reader(std::forward(source), + visitor, + basic_json_decode_options(), + err_handler, + alloc) + { + } + + template + basic_json_reader(Sourceable&& source, + basic_json_visitor& visitor, + const basic_json_decode_options& options, + std::function err_handler, + const Allocator& alloc = Allocator()) + : source_(std::forward(source)), + visitor_(visitor), + parser_(options,err_handler,alloc) + { + } + +#if !defined(JSONCONS_NO_DEPRECATED) + JSONCONS_DEPRECATED_MSG("Instead, use max_nesting_depth() on options") + int max_nesting_depth() const + { + return parser_.max_nesting_depth(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use max_nesting_depth(int) on options") + void max_nesting_depth(int depth) + { + parser_.max_nesting_depth(depth); + } +#endif + void read_next() + { + std::error_code ec; + read_next(ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec,parser_.line(),parser_.column())); + } + } + + void read_next(std::error_code& ec) + { + if (source_.is_error()) + { + ec = json_errc::source_error; + return; + } + parser_.reset(); + while (!parser_.stopped()) + { + if (parser_.source_exhausted()) + { + auto s = source_.read_buffer(ec); + if (ec) return; + if (s.size() > 0) + { + parser_.update(s.data(),s.size()); + } + } + bool eof = parser_.source_exhausted(); + parser_.parse_some(visitor_, ec); + if (ec) return; + if (eof) + { + if (parser_.enter()) + { + break; + } + else if (!parser_.accept()) + { + ec = json_errc::unexpected_eof; + return; + } + } + } + + while (!source_.eof()) + { + parser_.skip_whitespace(); + if (parser_.source_exhausted()) + { + auto s = source_.read_buffer(ec); + if (ec) return; + if (s.size() > 0) + { + parser_.update(s.data(),s.size()); + } + } + else + { + break; + } + } + } + + void check_done() + { + std::error_code ec; + check_done(ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec,parser_.line(),parser_.column())); + } + } + + std::size_t line() const + { + return parser_.line(); + } + + std::size_t column() const + { + return parser_.column(); + } + + void check_done(std::error_code& ec) + { + if (source_.is_error()) + { + ec = json_errc::source_error; + return; + } + if (source_.eof()) + { + parser_.check_done(ec); + if (ec) return; + } + else + { + do + { + if (parser_.source_exhausted()) + { + auto s = source_.read_buffer(ec); + if (ec) return; + if (s.size() > 0) + { + parser_.update(s.data(),s.size()); + } + } + if (!parser_.source_exhausted()) + { + parser_.check_done(ec); + if (ec) return; + } + } + while (!eof()); + } + } + + bool eof() const + { + return parser_.source_exhausted() && source_.eof(); + } + + void read() + { + read_next(); + check_done(); + } + + void read(std::error_code& ec) + { + read_next(ec); + if (!ec) + { + check_done(ec); + } + } + }; + + template,class Allocator=std::allocator> + class legacy_basic_json_reader + { + public: + using char_type = CharT; + using source_type = Source; + using string_view_type = jsoncons::basic_string_view; + private: + typedef typename std::allocator_traits:: template rebind_alloc char_allocator_type; + + static constexpr size_t default_max_buffer_size = 16384; + + json_source_adaptor source_; + basic_default_json_visitor default_visitor_; + basic_json_visitor& visitor_; + basic_json_parser parser_; + + // Noncopyable and nonmoveable + legacy_basic_json_reader(const legacy_basic_json_reader&) = delete; + legacy_basic_json_reader& operator=(const legacy_basic_json_reader&) = delete; + + public: + template + explicit legacy_basic_json_reader(Sourceable&& source, const Allocator& alloc = Allocator()) + : legacy_basic_json_reader(std::forward(source), + default_visitor_, + basic_json_decode_options(), + default_json_parsing(), + alloc) + { + } + + template + legacy_basic_json_reader(Sourceable&& source, + const basic_json_decode_options& options, + const Allocator& alloc = Allocator()) + : legacy_basic_json_reader(std::forward(source), + default_visitor_, + options, + default_json_parsing(), + alloc) + { + } + + template + legacy_basic_json_reader(Sourceable&& source, + std::function err_handler, + const Allocator& alloc = Allocator()) + : legacy_basic_json_reader(std::forward(source), + default_visitor_, + basic_json_decode_options(), + err_handler, + alloc) + { + } + + template + legacy_basic_json_reader(Sourceable&& source, + const basic_json_decode_options& options, + std::function err_handler, + const Allocator& alloc = Allocator()) + : legacy_basic_json_reader(std::forward(source), + default_visitor_, + options, + err_handler, + alloc) + { + } + + template + legacy_basic_json_reader(Sourceable&& source, + basic_json_visitor& visitor, + const Allocator& alloc = Allocator()) + : legacy_basic_json_reader(std::forward(source), + visitor, + basic_json_decode_options(), + default_json_parsing(), + alloc) + { + } + + template + legacy_basic_json_reader(Sourceable&& source, + basic_json_visitor& visitor, + const basic_json_decode_options& options, + const Allocator& alloc = Allocator()) + : legacy_basic_json_reader(std::forward(source), + visitor, + options, + default_json_parsing(), + alloc) + { + } + + template + legacy_basic_json_reader(Sourceable&& source, + basic_json_visitor& visitor, + std::function err_handler, + const Allocator& alloc = Allocator()) + : legacy_basic_json_reader(std::forward(source), + visitor, + basic_json_decode_options(), + err_handler, + alloc) + { + } + + template + legacy_basic_json_reader(Sourceable&& source, + basic_json_visitor& visitor, + const basic_json_decode_options& options, + std::function err_handler, + const Allocator& alloc = Allocator(), + typename std::enable_if,Sourceable>::value>::type* = 0) + : source_(std::forward(source)), + visitor_(visitor), + parser_(options,err_handler,alloc) + { + } + + template + legacy_basic_json_reader(Sourceable&& source, + basic_json_visitor& visitor, + const basic_json_decode_options& options, + std::function err_handler, + const Allocator& alloc = Allocator(), + typename std::enable_if,Sourceable>::value>::type* = 0) + : source_(), + visitor_(visitor), + parser_(options,err_handler,alloc) + { + jsoncons::basic_string_view sv(std::forward(source)); + + auto r = unicode_traits::detect_json_encoding(sv.data(), sv.size()); + if (!(r.encoding == unicode_traits::encoding_kind::utf8 || r.encoding == unicode_traits::encoding_kind::undetected)) + { + JSONCONS_THROW(ser_error(json_errc::illegal_unicode_character,parser_.line(),parser_.column())); + } + std::size_t offset = (r.ptr - sv.data()); + parser_.update(sv.data()+offset,sv.size()-offset); + } + +#if !defined(JSONCONS_NO_DEPRECATED) + JSONCONS_DEPRECATED_MSG("Instead, use max_nesting_depth() on options") + int max_nesting_depth() const + { + return parser_.max_nesting_depth(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use max_nesting_depth(int) on options") + void max_nesting_depth(int depth) + { + parser_.max_nesting_depth(depth); + } +#endif + void read_next() + { + std::error_code ec; + read_next(ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec,parser_.line(),parser_.column())); + } + } + + void read_next(std::error_code& ec) + { + if (source_.is_error()) + { + ec = json_errc::source_error; + return; + } + parser_.reset(); + while (!parser_.stopped()) + { + if (parser_.source_exhausted()) + { + auto s = source_.read_buffer(ec); + if (ec) return; + if (s.size() > 0) + { + parser_.update(s.data(),s.size()); + } + } + bool eof = parser_.source_exhausted(); + parser_.parse_some(visitor_, ec); + if (ec) return; + if (eof) + { + if (parser_.enter()) + { + break; + } + else if (!parser_.accept()) + { + ec = json_errc::unexpected_eof; + return; + } + } + } + + while (!source_.eof()) + { + parser_.skip_whitespace(); + if (parser_.source_exhausted()) + { + auto s = source_.read_buffer(ec); + if (ec) return; + if (s.size() > 0) + { + parser_.update(s.data(),s.size()); + } + } + else + { + break; + } + } + } + + void check_done() + { + std::error_code ec; + check_done(ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec,parser_.line(),parser_.column())); + } + } + + std::size_t line() const + { + return parser_.line(); + } + + std::size_t column() const + { + return parser_.column(); + } + + void check_done(std::error_code& ec) + { + if (source_.is_error()) + { + ec = json_errc::source_error; + return; + } + if (source_.eof()) + { + parser_.check_done(ec); + if (ec) return; + } + else + { + do + { + if (parser_.source_exhausted()) + { + auto s = source_.read_buffer(ec); + if (ec) return; + if (s.size() > 0) + { + parser_.update(s.data(),s.size()); + } + } + if (!parser_.source_exhausted()) + { + parser_.check_done(ec); + if (ec) return; + } + } + while (!eof()); + } + } + + bool eof() const + { + return parser_.source_exhausted() && source_.eof(); + } + + void read() + { + read_next(); + check_done(); + } + + void read(std::error_code& ec) + { + read_next(ec); + if (!ec) + { + check_done(ec); + } + } + }; + +#if !defined(JSONCONS_NO_DEPRECATED) + using json_reader = legacy_basic_json_reader; + using wjson_reader = legacy_basic_json_reader; +#endif + using json_string_reader = basic_json_reader>; + using wjson_string_reader = basic_json_reader>; + using json_stream_reader = basic_json_reader>; + using wjson_stream_reader = basic_json_reader>; +} + +#endif + diff --git a/include/jsoncons/json_traits_macros.hpp b/include/jsoncons/json_traits_macros.hpp new file mode 100644 index 0000000..321d889 --- /dev/null +++ b/include/jsoncons/json_traits_macros.hpp @@ -0,0 +1,1072 @@ +// Copyright 2019 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSON_TRAITS_MACROS_HPP +#define JSONCONS_JSON_TRAITS_MACROS_HPP + +#include // std::swap +#include // std::iterator_traits, std::input_iterator_tag +#include // JSONCONS_EXPAND, JSONCONS_QUOTE +#include +#include +#include // std::numeric_limits +#include +#include // std::enable_if +#include +#include + +namespace jsoncons +{ + #define JSONCONS_RDONLY(X) + + #define JSONCONS_RDWR(X) X + + struct always_true + { + template< class T> + constexpr bool operator()(const T&) const noexcept + { + return true; + } + }; + + struct identity + { + template< class T> + constexpr T&& operator()(T&& val) const noexcept + { + return std::forward(val); + } + }; + + template + struct json_traits_macro_names + {}; + + template + struct json_traits_helper + { + using string_view_type = typename Json::string_view_type; + + template + static void set_udt_member(const Json&, const string_view_type&, const OutputType&) + { + } + template + static void set_udt_member(const Json& j, const string_view_type& key, OutputType& val) + { + val = j.at(key).template as(); + } + + template + static void set_udt_member(const Json&, const string_view_type&, From, const OutputType&) + { + } + template + static void set_udt_member(const Json& j, const string_view_type& key, From from, OutputType& val) + { + val = from(j.at(key).template as()); + } + template + static void set_optional_json_member(const string_view_type& key, const std::shared_ptr& val, Json& j) + { + if (val) j.try_emplace(key, val); + } + template + static void set_optional_json_member(const string_view_type& key, const std::unique_ptr& val, Json& j) + { + if (val) j.try_emplace(key, val); + } + template + static void set_optional_json_member(const string_view_type& key, const jsoncons::optional& val, Json& j) + { + if (val) j.try_emplace(key, val); + } + template + static void set_optional_json_member(const string_view_type& key, const U& val, Json& j) + { + j.try_emplace(key, val); + } + }; +} + +#if defined(_MSC_VER) +#pragma warning( disable : 4127) +#endif + +#define JSONCONS_CONCAT_RAW(a, b) a ## b +#define JSONCONS_CONCAT(a, b) JSONCONS_CONCAT_RAW(a, b) + +// Inspired by https://github.com/Loki-Astari/ThorsSerializer/blob/master/src/Serialize/Traits.h + +#define JSONCONS_NARGS(...) JSONCONS_NARG_(__VA_ARGS__, 70,69,68,67,66,65,64,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0) +#define JSONCONS_NARG_(...) JSONCONS_EXPAND( JSONCONS_ARG_N(__VA_ARGS__) ) +#define JSONCONS_ARG_N(e1,e2,e3,e4,e5,e6,e7,e8,e9,e10,e11,e12,e13,e14,e15,e16,e17,e18,e19,e20,e21,e22,e23,e24,e25,e26,e27,e28,e29,e30,e31,e32,e33,e34,e35,e36,e37,e38,e39,e40,e41,e42,e43,e44,e45,e46,e47,e48,e49,e50,e51,e52,e53,e54,e55,e56,e57,e58,e59,e60,e61,e62,e63,e64,e65,e66,e67,e68,e69,e70,N,...)N + +#define JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, Count) Call(P1, P2, P3, P4, Count) + +#define JSONCONS_VARIADIC_REP_N(Call, P1, P2, P3, ...) JSONCONS_VARIADIC_REP_OF_N(Call, P1,P2, P3, JSONCONS_NARGS(__VA_ARGS__), __VA_ARGS__) +#define JSONCONS_VARIADIC_REP_OF_N(Call, P1, P2, P3, Count, ...) JSONCONS_VARIADIC_REP_OF_N_(Call, P1, P2, P3, Count, __VA_ARGS__) +#define JSONCONS_VARIADIC_REP_OF_N_(Call, P1, P2, P3, Count, ...) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_ ## Count(Call, P1, P2, P3, __VA_ARGS__)) + +#define JSONCONS_VARIADIC_REP_OF_70(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 70) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_69(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_69(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 69) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_68(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_68(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 68) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_67(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_67(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 67) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_66(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_66(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 66) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_65(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_65(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 65) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_64(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_64(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 64) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_63(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_63(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 63) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_62(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_62(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 62) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_61(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_61(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 61) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_60(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_60(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 60) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_59(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_59(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 59) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_58(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_58(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 58) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_57(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_57(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 57) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_56(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_56(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 56) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_55(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_55(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 55) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_54(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_54(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 54) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_53(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_53(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 53) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_52(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_52(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 52) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_51(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_51(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 51) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_50(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_50(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 50) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_49(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_49(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 49) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_48(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_48(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 48) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_47(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_47(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 47) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_46(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_46(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 46) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_45(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_45(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 45) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_44(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_44(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 44) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_43(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_43(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 43) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_42(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_42(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 42) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_41(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_41(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 41) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_40(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_40(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 40) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_39(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_39(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 39) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_38(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_38(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 38) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_37(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_37(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 37) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_36(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_36(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 36) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_35(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_35(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 35) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_34(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_34(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 34) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_33(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_33(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 33) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_32(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_32(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 32) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_31(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_31(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 31) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_30(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_30(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 30) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_29(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_29(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 29) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_28(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_28(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 28) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_27(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_27(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 27) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_26(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_26(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 26) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_25(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_25(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 25) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_24(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_24(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 24) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_23(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_23(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 23) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_22(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_22(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 22) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_21(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_21(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 21) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_20(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_20(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 20) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_19(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_19(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 19) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_18(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_18(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 18) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_17(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_17(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 17) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_16(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_16(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 16) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_15(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_15(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 15) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_14(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_14(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 14) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_13(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_13(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 13) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_12(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_12(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 12) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_11(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_11(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 11) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_10(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_10(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 10) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_9(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_9(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 9) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_8(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_8(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 8) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_7(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_7(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 7) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_6(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_6(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 6) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_5(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_5(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 5) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_4(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_4(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 4) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_3(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_3(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 3) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_2(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_2(Call, P1, P2, P3, P4, ...) JSONCONS_EXPAND_CALL5(Call, P1, P2, P3, P4, 2) JSONCONS_EXPAND(JSONCONS_VARIADIC_REP_OF_1(Call, P1, P2, P3, __VA_ARGS__)) +#define JSONCONS_VARIADIC_REP_OF_1(Call, P1, P2, P3, P4) JSONCONS_EXPAND(Call ## _LAST(P1, P2, P3, P4, 1)) + +#define JSONCONS_TYPE_TRAITS_FRIEND \ + template \ + friend struct jsoncons::json_type_traits; + +#define JSONCONS_EXPAND_CALL2(Call, Expr, Id) JSONCONS_EXPAND(Call(Expr, Id)) + +#define JSONCONS_REP_OF_N(Call, Expr, Pre, App, Count) JSONCONS_REP_OF_ ## Count(Call, Expr, Pre, App) + +#define JSONCONS_REP_OF_50(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 50) JSONCONS_REP_OF_49(Call, Expr, , App) +#define JSONCONS_REP_OF_49(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 49) JSONCONS_REP_OF_48(Call, Expr, , App) +#define JSONCONS_REP_OF_48(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 48) JSONCONS_REP_OF_47(Call, Expr, , App) +#define JSONCONS_REP_OF_47(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 47) JSONCONS_REP_OF_46(Call, Expr, , App) +#define JSONCONS_REP_OF_46(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 46) JSONCONS_REP_OF_45(Call, Expr, , App) +#define JSONCONS_REP_OF_45(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 45) JSONCONS_REP_OF_44(Call, Expr, , App) +#define JSONCONS_REP_OF_44(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 44) JSONCONS_REP_OF_43(Call, Expr, , App) +#define JSONCONS_REP_OF_43(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 43) JSONCONS_REP_OF_42(Call, Expr, , App) +#define JSONCONS_REP_OF_42(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 42) JSONCONS_REP_OF_41(Call, Expr, , App) +#define JSONCONS_REP_OF_41(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 41) JSONCONS_REP_OF_40(Call, Expr, , App) +#define JSONCONS_REP_OF_40(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 40) JSONCONS_REP_OF_39(Call, Expr, , App) +#define JSONCONS_REP_OF_39(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 39) JSONCONS_REP_OF_38(Call, Expr, , App) +#define JSONCONS_REP_OF_38(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 38) JSONCONS_REP_OF_37(Call, Expr, , App) +#define JSONCONS_REP_OF_37(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 37) JSONCONS_REP_OF_36(Call, Expr, , App) +#define JSONCONS_REP_OF_36(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 36) JSONCONS_REP_OF_35(Call, Expr, , App) +#define JSONCONS_REP_OF_35(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 35) JSONCONS_REP_OF_34(Call, Expr, , App) +#define JSONCONS_REP_OF_34(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 34) JSONCONS_REP_OF_33(Call, Expr, , App) +#define JSONCONS_REP_OF_33(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 33) JSONCONS_REP_OF_32(Call, Expr, , App) +#define JSONCONS_REP_OF_32(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 32) JSONCONS_REP_OF_31(Call, Expr, , App) +#define JSONCONS_REP_OF_31(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 31) JSONCONS_REP_OF_30(Call, Expr, , App) +#define JSONCONS_REP_OF_30(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 30) JSONCONS_REP_OF_29(Call, Expr, , App) +#define JSONCONS_REP_OF_29(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 29) JSONCONS_REP_OF_28(Call, Expr, , App) +#define JSONCONS_REP_OF_28(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 28) JSONCONS_REP_OF_27(Call, Expr, , App) +#define JSONCONS_REP_OF_27(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 27) JSONCONS_REP_OF_26(Call, Expr, , App) +#define JSONCONS_REP_OF_26(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 26) JSONCONS_REP_OF_25(Call, Expr, , App) +#define JSONCONS_REP_OF_25(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 25) JSONCONS_REP_OF_24(Call, Expr, , App) +#define JSONCONS_REP_OF_24(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 24) JSONCONS_REP_OF_23(Call, Expr, , App) +#define JSONCONS_REP_OF_23(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 23) JSONCONS_REP_OF_22(Call, Expr, , App) +#define JSONCONS_REP_OF_22(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 22) JSONCONS_REP_OF_21(Call, Expr, , App) +#define JSONCONS_REP_OF_21(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 21) JSONCONS_REP_OF_20(Call, Expr, , App) +#define JSONCONS_REP_OF_20(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 20) JSONCONS_REP_OF_19(Call, Expr, , App) +#define JSONCONS_REP_OF_19(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 19) JSONCONS_REP_OF_18(Call, Expr, , App) +#define JSONCONS_REP_OF_18(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 18) JSONCONS_REP_OF_17(Call, Expr, , App) +#define JSONCONS_REP_OF_17(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 17) JSONCONS_REP_OF_16(Call, Expr, , App) +#define JSONCONS_REP_OF_16(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 16) JSONCONS_REP_OF_15(Call, Expr, , App) +#define JSONCONS_REP_OF_15(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 15) JSONCONS_REP_OF_14(Call, Expr, , App) +#define JSONCONS_REP_OF_14(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 14) JSONCONS_REP_OF_13(Call, Expr, , App) +#define JSONCONS_REP_OF_13(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 13) JSONCONS_REP_OF_12(Call, Expr, , App) +#define JSONCONS_REP_OF_12(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 12) JSONCONS_REP_OF_11(Call, Expr, , App) +#define JSONCONS_REP_OF_11(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 11) JSONCONS_REP_OF_10(Call, Expr, , App) +#define JSONCONS_REP_OF_10(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 10) JSONCONS_REP_OF_9(Call, Expr, , App) +#define JSONCONS_REP_OF_9(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 9) JSONCONS_REP_OF_8(Call, Expr, , App) +#define JSONCONS_REP_OF_8(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 8) JSONCONS_REP_OF_7(Call, Expr, , App) +#define JSONCONS_REP_OF_7(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 7) JSONCONS_REP_OF_6(Call, Expr, , App) +#define JSONCONS_REP_OF_6(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 6) JSONCONS_REP_OF_5(Call, Expr, , App) +#define JSONCONS_REP_OF_5(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 5) JSONCONS_REP_OF_4(Call, Expr, , App) +#define JSONCONS_REP_OF_4(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 4) JSONCONS_REP_OF_3(Call, Expr, , App) +#define JSONCONS_REP_OF_3(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 3) JSONCONS_REP_OF_2(Call, Expr, , App) +#define JSONCONS_REP_OF_2(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call, Expr, 2) JSONCONS_REP_OF_1(Call, Expr, , App) +#define JSONCONS_REP_OF_1(Call, Expr, Pre, App) Pre JSONCONS_EXPAND_CALL2(Call ## _LAST, Expr, 1) App +#define JSONCONS_REP_OF_0(Call, Expr, Pre, App) + +#define JSONCONS_GENERATE_TPL_PARAMS(Call, Count) JSONCONS_REP_OF_N(Call, , , ,Count) +#define JSONCONS_GENERATE_TPL_ARGS(Call, Count) JSONCONS_REP_OF_N(Call, ,<,>,Count) +#define JSONCONS_GENERATE_TPL_PARAM(Expr, Id) typename T ## Id, +#define JSONCONS_GENERATE_TPL_PARAM_LAST(Expr, Id) typename T ## Id +#define JSONCONS_GENERATE_MORE_TPL_PARAM(Expr, Id) , typename T ## Id +#define JSONCONS_GENERATE_MORE_TPL_PARAM_LAST(Expr, Id) , typename T ## Id +#define JSONCONS_GENERATE_TPL_ARG(Expr, Id) T ## Id, +#define JSONCONS_GENERATE_TPL_ARG_LAST(Ex, Id) T ## Id + +#define JSONCONS_GENERATE_NAME_STR(Prefix, P2, P3, Member, Count) JSONCONS_GENERATE_NAME_STR_LAST(Prefix, P2, P3, Member, Count) +#define JSONCONS_GENERATE_NAME_STR_LAST(Prefix, P2, P3, Member, Count) \ + static inline const char* Member ## _str(char) {return JSONCONS_QUOTE(,Member);} \ + static inline const wchar_t* Member ## _str(wchar_t) {return JSONCONS_QUOTE(L,Member);} \ + /**/ + +#define JSONCONS_N_MEMBER_IS(Prefix, P2, P3, Member, Count) JSONCONS_N_MEMBER_IS_LAST(Prefix, P2, P3, Member, Count) +#define JSONCONS_N_MEMBER_IS_LAST(Prefix, P2, P3, Member, Count) if ((num_params-Count) < num_mandatory_params1 && !ajson.contains(json_traits_macro_names::Member##_str(char_type{}))) return false; + +#define JSONCONS_N_MEMBER_AS(Prefix,P2,P3, Member, Count) JSONCONS_N_MEMBER_AS_LAST(Prefix,P2,P3, Member, Count) +#define JSONCONS_N_MEMBER_AS_LAST(Prefix,P2,P3, Member, Count) \ + if ((num_params-Count) < num_mandatory_params2 || ajson.contains(json_traits_macro_names::Member##_str(char_type{}))) \ + {json_traits_helper::set_udt_member(ajson,json_traits_macro_names::Member##_str(char_type{}),aval.Member);} + +#define JSONCONS_ALL_MEMBER_AS(Prefix, P2,P3,Member, Count) JSONCONS_ALL_MEMBER_AS_LAST(Prefix,P2,P3, Member, Count) +#define JSONCONS_ALL_MEMBER_AS_LAST(Prefix,P2,P3, Member, Count) \ + json_traits_helper::set_udt_member(ajson,json_traits_macro_names::Member##_str(char_type{}),aval.Member); + +#define JSONCONS_TO_JSON(Prefix, P2, P3, Member, Count) JSONCONS_TO_JSON_LAST(Prefix, P2, P3, Member, Count) +#define JSONCONS_TO_JSON_LAST(Prefix, P2, P3, Member, Count) if ((num_params-Count) < num_mandatory_params2) \ + {ajson.try_emplace(json_traits_macro_names::Member##_str(char_type{}), aval.Member);} \ + else {json_traits_helper::set_optional_json_member(json_traits_macro_names::Member##_str(char_type{}), aval.Member, ajson);} + +#define JSONCONS_ALL_TO_JSON(Prefix, P2, P3, Member, Count) JSONCONS_ALL_TO_JSON_LAST(Prefix, P2, P3, Member, Count) +#define JSONCONS_ALL_TO_JSON_LAST(Prefix, P2, P3, Member, Count) \ + ajson.try_emplace(json_traits_macro_names::Member##_str(char_type{}), aval.Member); + +#define JSONCONS_MEMBER_TRAITS_BASE(AsT,ToJ,NumTemplateParams,ValueType,NumMandatoryParams1,NumMandatoryParams2, ...) \ +namespace jsoncons \ +{ \ + template \ + struct json_traits_macro_names \ + { \ + JSONCONS_VARIADIC_REP_N(JSONCONS_GENERATE_NAME_STR, ,,, __VA_ARGS__)\ + }; \ + template \ + struct json_type_traits \ + { \ + using value_type = ValueType JSONCONS_GENERATE_TPL_ARGS(JSONCONS_GENERATE_TPL_ARG, NumTemplateParams); \ + using allocator_type = typename Json::allocator_type; \ + using char_type = typename Json::char_type; \ + using string_view_type = typename Json::string_view_type; \ + constexpr static size_t num_params = JSONCONS_NARGS(__VA_ARGS__); \ + constexpr static size_t num_mandatory_params1 = NumMandatoryParams1; \ + constexpr static size_t num_mandatory_params2 = NumMandatoryParams2; \ + static bool is(const Json& ajson) noexcept \ + { \ + if (!ajson.is_object()) return false; \ + JSONCONS_VARIADIC_REP_N(JSONCONS_N_MEMBER_IS, ,,, __VA_ARGS__)\ + return true; \ + } \ + static value_type as(const Json& ajson) \ + { \ + if (!is(ajson)) JSONCONS_THROW(conv_error(conv_errc::conversion_failed, "Not a " # ValueType)); \ + value_type aval{}; \ + JSONCONS_VARIADIC_REP_N(AsT, ,,, __VA_ARGS__) \ + return aval; \ + } \ + static Json to_json(const value_type& aval, allocator_type alloc=allocator_type()) \ + { \ + Json ajson(json_object_arg, semantic_tag::none, alloc); \ + JSONCONS_VARIADIC_REP_N(ToJ, ,,, __VA_ARGS__) \ + return ajson; \ + } \ + }; \ +} \ + /**/ + +#define JSONCONS_N_MEMBER_TRAITS(ValueType,NumMandatoryParams,...) \ + JSONCONS_MEMBER_TRAITS_BASE(JSONCONS_N_MEMBER_AS, JSONCONS_TO_JSON,0, ValueType,NumMandatoryParams,NumMandatoryParams, __VA_ARGS__) \ + namespace jsoncons { template <> struct is_json_type_traits_declared : public std::true_type {}; } \ + /**/ + +#define JSONCONS_TPL_N_MEMBER_TRAITS(NumTemplateParams, ValueType,NumMandatoryParams, ...) \ + JSONCONS_MEMBER_TRAITS_BASE(JSONCONS_N_MEMBER_AS, JSONCONS_TO_JSON,NumTemplateParams, ValueType,NumMandatoryParams,NumMandatoryParams, __VA_ARGS__) \ + namespace jsoncons { template struct is_json_type_traits_declared : public std::true_type {}; } \ + /**/ + +#define JSONCONS_ALL_MEMBER_TRAITS(ValueType, ...) \ + JSONCONS_MEMBER_TRAITS_BASE(JSONCONS_ALL_MEMBER_AS,JSONCONS_ALL_TO_JSON,0,ValueType, JSONCONS_NARGS(__VA_ARGS__), JSONCONS_NARGS(__VA_ARGS__),__VA_ARGS__) \ + namespace jsoncons { template <> struct is_json_type_traits_declared : public std::true_type {}; } \ + /**/ + +#define JSONCONS_TPL_ALL_MEMBER_TRAITS(NumTemplateParams, ValueType, ...) \ + JSONCONS_MEMBER_TRAITS_BASE(JSONCONS_ALL_MEMBER_AS,JSONCONS_ALL_TO_JSON,NumTemplateParams,ValueType, JSONCONS_NARGS(__VA_ARGS__), JSONCONS_NARGS(__VA_ARGS__),__VA_ARGS__) \ + namespace jsoncons { template struct is_json_type_traits_declared : public std::true_type {}; } \ + /**/ + +#define JSONCONS_MEMBER_NAME_IS(P1, P2, P3, Seq, Count) JSONCONS_MEMBER_NAME_IS_LAST(P1, P2, P3, Seq, Count) +#define JSONCONS_MEMBER_NAME_IS_LAST(P1, P2, P3, Seq, Count) if ((num_params-Count) < num_mandatory_params1 && JSONCONS_EXPAND(JSONCONS_CONCAT(JSONCONS_MEMBER_NAME_IS_,JSONCONS_NARGS Seq) Seq) +#define JSONCONS_MEMBER_NAME_IS_2(Member, Name) !ajson.contains(Name)) return false; +#define JSONCONS_MEMBER_NAME_IS_3(Member, Name, Mode) JSONCONS_MEMBER_NAME_IS_2(Member, Name) +#define JSONCONS_MEMBER_NAME_IS_4(Member, Name, Mode, Match) JSONCONS_MEMBER_NAME_IS_6(Member, Name, Mode, Match, , ) +#define JSONCONS_MEMBER_NAME_IS_5(Member, Name, Mode, Match, Into) JSONCONS_MEMBER_NAME_IS_6(Member, Name, Mode, Match, Into, ) +#define JSONCONS_MEMBER_NAME_IS_6(Member, Name, Mode, Match, Into, From) !ajson.contains(Name)) return false; \ + JSONCONS_TRY{if (!Match(ajson.at(Name).template as())->Member))>::type>())) return false;} \ + JSONCONS_CATCH(...) {return false;} + +#define JSONCONS_N_MEMBER_NAME_AS(P1, P2, P3, Seq, Count) JSONCONS_N_MEMBER_NAME_AS_LAST(P1, P2, P3, Seq, Count) +#define JSONCONS_N_MEMBER_NAME_AS_LAST(P1, P2, P3, Seq, Count) JSONCONS_EXPAND(JSONCONS_CONCAT(JSONCONS_N_MEMBER_NAME_AS_,JSONCONS_NARGS Seq) Seq) +#define JSONCONS_N_MEMBER_NAME_AS_2(Member, Name) \ + if (ajson.contains(Name)) {json_traits_helper::set_udt_member(ajson,Name,aval.Member);} +#define JSONCONS_N_MEMBER_NAME_AS_3(Member, Name, Mode) Mode(JSONCONS_N_MEMBER_NAME_AS_2(Member, Name)) +#define JSONCONS_N_MEMBER_NAME_AS_4(Member, Name, Mode, Match) \ + Mode(if (ajson.contains(Name)) {json_traits_helper::set_udt_member(ajson,Name,aval.Member);}) +#define JSONCONS_N_MEMBER_NAME_AS_5(Member, Name, Mode, Match, Into) \ + Mode(if (ajson.contains(Name)) {json_traits_helper::template set_udt_member())->Member))>::type>(ajson,Name,aval.Member);}) +#define JSONCONS_N_MEMBER_NAME_AS_6(Member, Name, Mode, Match, Into, From) \ + Mode(if (ajson.contains(Name)) {json_traits_helper::template set_udt_member())->Member))>::type>(ajson,Name,From,aval.Member);}) + +#define JSONCONS_ALL_MEMBER_NAME_AS(P1, P2, P3, Seq, Count) JSONCONS_ALL_MEMBER_NAME_AS_LAST(P1, P2, P3, Seq, Count) +#define JSONCONS_ALL_MEMBER_NAME_AS_LAST(P1, P2, P3, Seq, Count) JSONCONS_EXPAND(JSONCONS_CONCAT(JSONCONS_ALL_MEMBER_NAME_AS_,JSONCONS_NARGS Seq) Seq) +#define JSONCONS_ALL_MEMBER_NAME_AS_2(Member, Name) \ + json_traits_helper::set_udt_member(ajson,Name,aval.Member); +#define JSONCONS_ALL_MEMBER_NAME_AS_3(Member, Name, Mode) Mode(JSONCONS_ALL_MEMBER_NAME_AS_2(Member, Name)) +#define JSONCONS_ALL_MEMBER_NAME_AS_4(Member, Name, Mode, Match) \ + Mode(json_traits_helper::set_udt_member(ajson,Name,aval.Member);) +#define JSONCONS_ALL_MEMBER_NAME_AS_5(Member, Name, Mode, Match, Into) \ + Mode(json_traits_helper::template set_udt_member())->Member))>::type>(ajson,Name,aval.Member);) +#define JSONCONS_ALL_MEMBER_NAME_AS_6(Member, Name, Mode, Match, Into, From) \ + Mode(json_traits_helper::template set_udt_member())->Member))>::type>(ajson,Name,From,aval.Member);) + +#define JSONCONS_N_MEMBER_NAME_TO_JSON(P1, P2, P3, Seq, Count) JSONCONS_N_MEMBER_NAME_TO_JSON_LAST(P1, P2, P3, Seq, Count) +#define JSONCONS_N_MEMBER_NAME_TO_JSON_LAST(P1, P2, P3, Seq, Count) if ((num_params-Count) < num_mandatory_params2) JSONCONS_EXPAND(JSONCONS_CONCAT(JSONCONS_N_MEMBER_NAME_TO_JSON_,JSONCONS_NARGS Seq) Seq) +#define JSONCONS_N_MEMBER_NAME_TO_JSON_2(Member, Name) \ + {ajson.try_emplace(Name, aval.Member);} \ +else \ + {json_traits_helper::set_optional_json_member(Name, aval.Member, ajson);} +#define JSONCONS_N_MEMBER_NAME_TO_JSON_3(Member, Name, Mode) JSONCONS_N_MEMBER_NAME_TO_JSON_2(Member, Name) +#define JSONCONS_N_MEMBER_NAME_TO_JSON_4(Member, Name, Mode, Match) JSONCONS_N_MEMBER_NAME_TO_JSON_6(Member, Name, Mode, Match,,) +#define JSONCONS_N_MEMBER_NAME_TO_JSON_5(Member, Name, Mode, Match, Into) JSONCONS_N_MEMBER_NAME_TO_JSON_6(Member, Name, Mode, Match, Into, ) +#define JSONCONS_N_MEMBER_NAME_TO_JSON_6(Member, Name, Mode, Match, Into, From) \ + {ajson.try_emplace(Name, Into(aval.Member));} \ +else \ + {json_traits_helper::set_optional_json_member(Name, Into(aval.Member), ajson);} + +#define JSONCONS_ALL_MEMBER_NAME_TO_JSON(P1, P2, P3, Seq, Count) JSONCONS_ALL_MEMBER_NAME_TO_JSON_LAST(P1, P2, P3, Seq, Count) +#define JSONCONS_ALL_MEMBER_NAME_TO_JSON_LAST(P1, P2, P3, Seq, Count) JSONCONS_EXPAND(JSONCONS_CONCAT(JSONCONS_ALL_MEMBER_NAME_TO_JSON_,JSONCONS_NARGS Seq) Seq) +#define JSONCONS_ALL_MEMBER_NAME_TO_JSON_2(Member, Name) ajson.try_emplace(Name, aval.Member); +#define JSONCONS_ALL_MEMBER_NAME_TO_JSON_3(Member, Name, Mode) JSONCONS_ALL_MEMBER_NAME_TO_JSON_2(Member, Name) +#define JSONCONS_ALL_MEMBER_NAME_TO_JSON_4(Member, Name, Mode, Match) JSONCONS_ALL_MEMBER_NAME_TO_JSON_6(Member, Name, Mode, Match,,) +#define JSONCONS_ALL_MEMBER_NAME_TO_JSON_5(Member, Name, Mode, Match, Into) JSONCONS_ALL_MEMBER_NAME_TO_JSON_6(Member, Name, Mode, Match, Into, ) +#define JSONCONS_ALL_MEMBER_NAME_TO_JSON_6(Member, Name, Mode, Match, Into, From) ajson.try_emplace(Name, Into(aval.Member)); + +#define JSONCONS_MEMBER_NAME_TRAITS_BASE(AsT,ToJ, NumTemplateParams, ValueType,NumMandatoryParams1,NumMandatoryParams2, ...) \ +namespace jsoncons \ +{ \ + template \ + struct json_type_traits \ + { \ + using value_type = ValueType JSONCONS_GENERATE_TPL_ARGS(JSONCONS_GENERATE_TPL_ARG, NumTemplateParams); \ + using allocator_type = typename Json::allocator_type; \ + using char_type = typename Json::char_type; \ + using string_view_type = typename Json::string_view_type; \ + constexpr static size_t num_params = JSONCONS_NARGS(__VA_ARGS__); \ + constexpr static size_t num_mandatory_params1 = NumMandatoryParams1; \ + constexpr static size_t num_mandatory_params2 = NumMandatoryParams2; \ + static bool is(const Json& ajson) noexcept \ + { \ + if (!ajson.is_object()) return false; \ + JSONCONS_VARIADIC_REP_N(JSONCONS_MEMBER_NAME_IS,,,, __VA_ARGS__)\ + return true; \ + } \ + static value_type as(const Json& ajson) \ + { \ + if (!is(ajson)) JSONCONS_THROW(conv_error(conv_errc::conversion_failed, "Not a " # ValueType)); \ + value_type aval{}; \ + JSONCONS_VARIADIC_REP_N(AsT,,,, __VA_ARGS__) \ + return aval; \ + } \ + static Json to_json(const value_type& aval, allocator_type alloc=allocator_type()) \ + { \ + Json ajson(json_object_arg, semantic_tag::none, alloc); \ + JSONCONS_VARIADIC_REP_N(ToJ,,,, __VA_ARGS__) \ + return ajson; \ + } \ + }; \ +} \ + /**/ + + +#define JSONCONS_N_MEMBER_NAME_TRAITS(ValueType,NumMandatoryParams, ...) \ + JSONCONS_MEMBER_NAME_TRAITS_BASE(JSONCONS_N_MEMBER_NAME_AS, JSONCONS_N_MEMBER_NAME_TO_JSON, 0, ValueType,NumMandatoryParams,NumMandatoryParams, __VA_ARGS__) \ + namespace jsoncons { template <> struct is_json_type_traits_declared : public std::true_type {}; } \ + /**/ + +#define JSONCONS_TPL_N_MEMBER_NAME_TRAITS(NumTemplateParams, ValueType,NumMandatoryParams, ...) \ + JSONCONS_MEMBER_NAME_TRAITS_BASE(JSONCONS_N_MEMBER_NAME_AS, JSONCONS_N_MEMBER_NAME_TO_JSON, NumTemplateParams, ValueType,NumMandatoryParams,NumMandatoryParams, __VA_ARGS__) \ + namespace jsoncons { template struct is_json_type_traits_declared : public std::true_type {}; } \ + /**/ + +#define JSONCONS_ALL_MEMBER_NAME_TRAITS(ValueType, ...) \ + JSONCONS_MEMBER_NAME_TRAITS_BASE(JSONCONS_ALL_MEMBER_NAME_AS, JSONCONS_ALL_MEMBER_NAME_TO_JSON, 0, ValueType, JSONCONS_NARGS(__VA_ARGS__), JSONCONS_NARGS(__VA_ARGS__), __VA_ARGS__) \ + namespace jsoncons { template <> struct is_json_type_traits_declared : public std::true_type {}; } \ + /**/ + +#define JSONCONS_TPL_ALL_MEMBER_NAME_TRAITS(NumTemplateParams, ValueType, ...) \ + JSONCONS_MEMBER_NAME_TRAITS_BASE(JSONCONS_ALL_MEMBER_NAME_AS, JSONCONS_ALL_MEMBER_NAME_TO_JSON, NumTemplateParams, ValueType, JSONCONS_NARGS(__VA_ARGS__), JSONCONS_NARGS(__VA_ARGS__), __VA_ARGS__) \ + namespace jsoncons { template struct is_json_type_traits_declared : public std::true_type {}; } \ + /**/ + +#define JSONCONS_CTOR_GETTER_IS(Prefix, P2, P3, Getter, Count) JSONCONS_CTOR_GETTER_IS_LAST(Prefix, P2, P3, Getter, Count) +#define JSONCONS_CTOR_GETTER_IS_LAST(Prefix, P2, P3, Getter, Count) if ((num_params-Count) < num_mandatory_params1 && !ajson.contains(json_traits_macro_names::Getter##_str(char_type{}))) return false; + +#define JSONCONS_CTOR_GETTER_AS(Prefix, P2, P3, Getter, Count) JSONCONS_CTOR_GETTER_AS_LAST(Prefix, P2, P3, Getter, Count), +#define JSONCONS_CTOR_GETTER_AS_LAST(Prefix, P2, P3, Getter, Count) ((num_params-Count) < num_mandatory_params2) ? (ajson.at(json_traits_macro_names::Getter##_str(char_type{}))).template as())->Getter())>::type>() : (ajson.contains(json_traits_macro_names::Getter##_str(char_type{})) ? (ajson.at(json_traits_macro_names::Getter##_str(char_type{}))).template as())->Getter())>::type>() : typename std::decay())->Getter())>::type()) + +#define JSONCONS_CTOR_GETTER_TO_JSON(Prefix, P2, P3, Getter, Count) JSONCONS_CTOR_GETTER_TO_JSON_LAST(Prefix, P2, P3, Getter, Count) + +#define JSONCONS_CTOR_GETTER_TO_JSON_LAST(Prefix, P2, P3, Getter, Count) \ +if ((num_params-Count) < num_mandatory_params2) { \ + ajson.try_emplace(json_traits_macro_names::Getter##_str(char_type{}), aval.Getter() ); \ + } \ +else { \ + json_traits_helper::set_optional_json_member(json_traits_macro_names::Getter##_str(char_type{}), aval.Getter(), ajson); \ +} + +#define JSONCONS_CTOR_GETTER_TRAITS_BASE(NumTemplateParams, ValueType,NumMandatoryParams1,NumMandatoryParams2, ...) \ +namespace jsoncons \ +{ \ + template \ + struct json_traits_macro_names \ + { \ + JSONCONS_VARIADIC_REP_N(JSONCONS_GENERATE_NAME_STR, ,,, __VA_ARGS__)\ + }; \ + template \ + struct json_type_traits \ + { \ + using value_type = ValueType JSONCONS_GENERATE_TPL_ARGS(JSONCONS_GENERATE_TPL_ARG, NumTemplateParams); \ + using allocator_type = typename Json::allocator_type; \ + using char_type = typename Json::char_type; \ + using string_view_type = typename Json::string_view_type; \ + constexpr static size_t num_params = JSONCONS_NARGS(__VA_ARGS__); \ + constexpr static size_t num_mandatory_params1 = NumMandatoryParams1; \ + constexpr static size_t num_mandatory_params2 = NumMandatoryParams2; \ + static bool is(const Json& ajson) noexcept \ + { \ + if (!ajson.is_object()) return false; \ + JSONCONS_VARIADIC_REP_N(JSONCONS_CTOR_GETTER_IS, ,,, __VA_ARGS__)\ + return true; \ + } \ + static value_type as(const Json& ajson) \ + { \ + if (!is(ajson)) JSONCONS_THROW(conv_error(conv_errc::conversion_failed, "Not a " # ValueType)); \ + return value_type ( JSONCONS_VARIADIC_REP_N(JSONCONS_CTOR_GETTER_AS, ,,, __VA_ARGS__) ); \ + } \ + static Json to_json(const value_type& aval, allocator_type alloc=allocator_type()) \ + { \ + Json ajson(json_object_arg, semantic_tag::none, alloc); \ + JSONCONS_VARIADIC_REP_N(JSONCONS_CTOR_GETTER_TO_JSON, ,,, __VA_ARGS__) \ + return ajson; \ + } \ + }; \ +} \ + /**/ + +#define JSONCONS_ALL_CTOR_GETTER_TRAITS(ValueType, ...) \ + JSONCONS_CTOR_GETTER_TRAITS_BASE(0, ValueType, JSONCONS_NARGS(__VA_ARGS__), JSONCONS_NARGS(__VA_ARGS__), __VA_ARGS__) \ + namespace jsoncons { template <> struct is_json_type_traits_declared : public std::true_type {}; } \ + /**/ + +#define JSONCONS_TPL_ALL_CTOR_GETTER_TRAITS(NumTemplateParams, ValueType, ...) \ + JSONCONS_CTOR_GETTER_TRAITS_BASE(NumTemplateParams, ValueType, JSONCONS_NARGS(__VA_ARGS__), JSONCONS_NARGS(__VA_ARGS__), __VA_ARGS__) \ + namespace jsoncons { template struct is_json_type_traits_declared : public std::true_type {}; } \ + /**/ + +#define JSONCONS_N_CTOR_GETTER_TRAITS(ValueType,NumMandatoryParams, ...) \ + JSONCONS_CTOR_GETTER_TRAITS_BASE(0, ValueType,NumMandatoryParams,NumMandatoryParams, __VA_ARGS__) \ + namespace jsoncons { template <> struct is_json_type_traits_declared : public std::true_type {}; } \ + /**/ + +#define JSONCONS_N_ALL_CTOR_GETTER_TRAITS(NumTemplateParams, ValueType,NumMandatoryParams, ...) \ + JSONCONS_CTOR_GETTER_TRAITS_BASE(NumTemplateParams, ValueType,NumMandatoryParams,NumMandatoryParams, __VA_ARGS__) \ + namespace jsoncons { template <> struct is_json_type_traits_declared : public std::true_type {}; } \ + /**/ + +#define JSONCONS_CTOR_GETTER_NAME_IS(P1, P2, P3, Seq, Count) JSONCONS_CTOR_GETTER_NAME_IS_LAST(P1, P2, P3, Seq, Count) +#define JSONCONS_CTOR_GETTER_NAME_IS_LAST(P1, P2, P3, Seq, Count) if ((num_params-Count) < num_mandatory_params1 && JSONCONS_EXPAND(JSONCONS_CONCAT(JSONCONS_CTOR_GETTER_NAME_IS_,JSONCONS_NARGS Seq) Seq) +#define JSONCONS_CTOR_GETTER_NAME_IS_2(Getter, Name) !ajson.contains(Name)) return false; +#define JSONCONS_CTOR_GETTER_NAME_IS_3(Getter, Name, Mode) JSONCONS_CTOR_GETTER_NAME_IS_2(Getter, Name) +#define JSONCONS_CTOR_GETTER_NAME_IS_4(Getter, Name, Mode, Match) JSONCONS_CTOR_GETTER_NAME_IS_6(Getter, Name, Mode, Match, , ) +#define JSONCONS_CTOR_GETTER_NAME_IS_5(Getter, Name, Mode, Match, Into) JSONCONS_CTOR_GETTER_NAME_IS_6(Getter, Name, Mode, Match, Into, ) +#define JSONCONS_CTOR_GETTER_NAME_IS_6(Getter, Name, Mode, Match, Into, From) !ajson.contains(Name)) return false; \ + JSONCONS_TRY{if (!Match(ajson.at(Name).template as())->Getter()))>::type>())) return false;} \ + JSONCONS_CATCH(...) {return false;} + +#define JSONCONS_CTOR_GETTER_NAME_AS(P1, P2, P3, Seq, Count) JSONCONS_EXPAND(JSONCONS_CONCAT(JSONCONS_CTOR_GETTER_NAME_AS_,JSONCONS_NARGS Seq) Seq) +#define JSONCONS_CTOR_GETTER_NAME_AS_2(Getter, Name) JSONCONS_CTOR_GETTER_NAME_AS_LAST_2(Getter, Name) JSONCONS_COMMA +#define JSONCONS_CTOR_GETTER_NAME_AS_3(Getter, Name, Mode) Mode(JSONCONS_CTOR_GETTER_NAME_AS_LAST_2(Getter, Name)) Mode(JSONCONS_COMMA) +#define JSONCONS_CTOR_GETTER_NAME_AS_4(Getter, Name, Mode, Match) JSONCONS_CTOR_GETTER_NAME_AS_6(Getter, Name, Mode, Match,,) +#define JSONCONS_CTOR_GETTER_NAME_AS_5(Getter, Name, Mode, Match, Into) JSONCONS_CTOR_GETTER_NAME_AS_6(Getter, Name, Mode, Match, Into, ) +#define JSONCONS_CTOR_GETTER_NAME_AS_6(Getter, Name, Mode, Match, Into, From) JSONCONS_CTOR_GETTER_NAME_AS_LAST_6(Getter,Name,Mode,Match,Into,From) Mode(JSONCONS_COMMA) +#define JSONCONS_COMMA , + +#define JSONCONS_CTOR_GETTER_NAME_AS_LAST(P1, P2, P3, Seq, Count) JSONCONS_EXPAND(JSONCONS_CONCAT(JSONCONS_CTOR_GETTER_NAME_AS_LAST_,JSONCONS_NARGS Seq) Seq) +#define JSONCONS_CTOR_GETTER_NAME_AS_LAST_2(Getter, Name) (ajson.contains(Name)) ? (ajson.at(Name)).template as())->Getter())>::type>() : typename std::decay())->Getter())>::type() +#define JSONCONS_CTOR_GETTER_NAME_AS_LAST_3(Getter, Name, Mode) Mode(JSONCONS_CTOR_GETTER_NAME_AS_LAST_2(Getter, Name)) +#define JSONCONS_CTOR_GETTER_NAME_AS_LAST_4(Getter, Name, Mode, Match) JSONCONS_CTOR_GETTER_NAME_AS_LAST_6(Getter, Name, Mode, Match,,) +#define JSONCONS_CTOR_GETTER_NAME_AS_LAST_5(Getter, Name, Mode, Match, Into) JSONCONS_CTOR_GETTER_NAME_AS_LAST_6(Getter, Name, Mode, Match, Into, ) +#define JSONCONS_CTOR_GETTER_NAME_AS_LAST_6(Getter, Name, Mode, Match, Into, From) Mode(ajson.contains(Name) ? From(ajson.at(Name).template as())->Getter()))>::type>()) : From(typename std::decay())->Getter()))>::type())) + +#define JSONCONS_CTOR_GETTER_NAME_TO_JSON(P1, P2, P3, Seq, Count) JSONCONS_CTOR_GETTER_NAME_TO_JSON_LAST(P1, P2, P3, Seq, Count) +#define JSONCONS_CTOR_GETTER_NAME_TO_JSON_LAST(P1, P2, P3, Seq, Count) if ((num_params-Count) < num_mandatory_params2) JSONCONS_EXPAND(JSONCONS_CONCAT(JSONCONS_CTOR_GETTER_NAME_TO_JSON_,JSONCONS_NARGS Seq) Seq) +#define JSONCONS_CTOR_GETTER_NAME_TO_JSON_2(Getter, Name) \ +{ \ + ajson.try_emplace(Name, aval.Getter() ); \ +} \ +else { \ + json_traits_helper::set_optional_json_member(Name, aval.Getter(), ajson); \ +} +#define JSONCONS_CTOR_GETTER_NAME_TO_JSON_3(Getter, Name, Mode) JSONCONS_CTOR_GETTER_NAME_TO_JSON_2(Getter, Name) +#define JSONCONS_CTOR_GETTER_NAME_TO_JSON_4(Getter, Name, Mode, Match) JSONCONS_CTOR_GETTER_NAME_TO_JSON_2(Getter, Name) +#define JSONCONS_CTOR_GETTER_NAME_TO_JSON_5(Getter, Name, Mode, Match, Into) JSONCONS_CTOR_GETTER_NAME_TO_JSON_6(Getter, Name, Mode, Match, Into, ) +#define JSONCONS_CTOR_GETTER_NAME_TO_JSON_6(Getter, Name, Mode, Match, Into, From) \ +{ \ + ajson.try_emplace(Name, Into(aval.Getter()) ); \ +} \ +else { \ + json_traits_helper::set_optional_json_member(Name, Into(aval.Getter()), ajson); \ +} + +#define JSONCONS_CTOR_GETTER_NAME_TRAITS_BASE(NumTemplateParams, ValueType,NumMandatoryParams1,NumMandatoryParams2, ...) \ +namespace jsoncons \ +{ \ + template \ + struct json_type_traits \ + { \ + using value_type = ValueType JSONCONS_GENERATE_TPL_ARGS(JSONCONS_GENERATE_TPL_ARG, NumTemplateParams); \ + using allocator_type = typename Json::allocator_type; \ + using char_type = typename Json::char_type; \ + using string_view_type = typename Json::string_view_type; \ + constexpr static size_t num_params = JSONCONS_NARGS(__VA_ARGS__); \ + constexpr static size_t num_mandatory_params1 = NumMandatoryParams1; \ + constexpr static size_t num_mandatory_params2 = NumMandatoryParams2; \ + static bool is(const Json& ajson) noexcept \ + { \ + if (!ajson.is_object()) return false; \ + JSONCONS_VARIADIC_REP_N(JSONCONS_CTOR_GETTER_NAME_IS,,,, __VA_ARGS__)\ + return true; \ + } \ + static value_type as(const Json& ajson) \ + { \ + if (!is(ajson)) JSONCONS_THROW(conv_error(conv_errc::conversion_failed, "Not a " # ValueType)); \ + return value_type ( JSONCONS_VARIADIC_REP_N(JSONCONS_CTOR_GETTER_NAME_AS,,,, __VA_ARGS__) ); \ + } \ + static Json to_json(const value_type& aval, allocator_type alloc=allocator_type()) \ + { \ + Json ajson(json_object_arg, semantic_tag::none, alloc); \ + JSONCONS_VARIADIC_REP_N(JSONCONS_CTOR_GETTER_NAME_TO_JSON,,,, __VA_ARGS__) \ + return ajson; \ + } \ + }; \ +} \ + /**/ + +#define JSONCONS_ALL_CTOR_GETTER_NAME_TRAITS(ValueType, ...) \ + JSONCONS_CTOR_GETTER_NAME_TRAITS_BASE(0, ValueType, JSONCONS_NARGS(__VA_ARGS__), JSONCONS_NARGS(__VA_ARGS__), __VA_ARGS__) \ + namespace jsoncons { template <> struct is_json_type_traits_declared : public std::true_type {}; } \ + /**/ + +#define JSONCONS_TPL_ALL_CTOR_GETTER_NAME_TRAITS(NumTemplateParams, ValueType, ...) \ + JSONCONS_CTOR_GETTER_NAME_TRAITS_BASE(NumTemplateParams, ValueType, JSONCONS_NARGS(__VA_ARGS__), JSONCONS_NARGS(__VA_ARGS__), __VA_ARGS__) \ + namespace jsoncons { template struct is_json_type_traits_declared : public std::true_type {}; } \ + /**/ + +#define JSONCONS_N_CTOR_GETTER_NAME_TRAITS(ValueType,NumMandatoryParams, ...) \ + JSONCONS_CTOR_GETTER_NAME_TRAITS_BASE(0, ValueType,NumMandatoryParams,NumMandatoryParams, __VA_ARGS__) \ + namespace jsoncons { template <> struct is_json_type_traits_declared : public std::true_type {}; } \ + /**/ + +#define JSONCONS_TPL_N_CTOR_GETTER_NAME_TRAITS(NumTemplateParams, ValueType,NumMandatoryParams, ...) \ +JSONCONS_CTOR_GETTER_NAME_TRAITS_BASE(NumTemplateParams, ValueType,NumMandatoryParams,NumMandatoryParams, __VA_ARGS__) \ + namespace jsoncons { template struct is_json_type_traits_declared : public std::true_type {}; } \ + /**/ + +#define JSONCONS_ENUM_PAIR(Prefix, P2, P3, Member, Count) JSONCONS_ENUM_PAIR_LAST(Prefix, P2, P3, Member, Count), +#define JSONCONS_ENUM_PAIR_LAST(Prefix, P2, P3, Member, Count) {value_type::Member, json_traits_macro_names::Member##_str(char_type{})} + +#define JSONCONS_ENUM_TRAITS_BASE(EnumType, ...) \ +namespace jsoncons \ +{ \ + template \ + struct json_traits_macro_names \ + { \ + JSONCONS_VARIADIC_REP_N(JSONCONS_GENERATE_NAME_STR, ,,, __VA_ARGS__)\ + }; \ + template \ + struct json_type_traits \ + { \ + static_assert(std::is_enum::value, # EnumType " must be an enum"); \ + using value_type = EnumType; \ + using char_type = typename Json::char_type; \ + using string_type = std::basic_string; \ + using string_view_type = jsoncons::basic_string_view; \ + using allocator_type = typename Json::allocator_type; \ + using mapped_type = std::pair; \ + \ + static std::pair get_values() \ + { \ + static const mapped_type v[] = { \ + JSONCONS_VARIADIC_REP_N(JSONCONS_ENUM_PAIR, ,,, __VA_ARGS__)\ + };\ + return std::make_pair(v,v+JSONCONS_NARGS(__VA_ARGS__)); \ + } \ + \ + static bool is(const Json& ajson) noexcept \ + { \ + if (!ajson.is_string()) return false; \ + auto first = get_values().first; \ + auto last = get_values().second; \ + const string_view_type s = ajson.template as(); \ + if (s.empty() && std::find_if(first, last, \ + [](const mapped_type& item) -> bool \ + { return item.first == value_type(); }) == last) \ + { \ + return true; \ + } \ + auto it = std::find_if(first, last, \ + [&](const mapped_type& item) -> bool \ + { return item.second == s; }); \ + return it != last; \ + } \ + static value_type as(const Json& ajson) \ + { \ + if (!is(ajson)) JSONCONS_THROW(conv_error(conv_errc::conversion_failed, "Not a " # EnumType)); \ + const string_view_type s = ajson.template as(); \ + auto first = get_values().first; \ + auto last = get_values().second; \ + if (s.empty() && std::find_if(first, last, \ + [](const mapped_type& item) -> bool \ + { return item.first == value_type(); }) == last) \ + { \ + return value_type(); \ + } \ + auto it = std::find_if(first, last, \ + [&](const mapped_type& item) -> bool \ + { return item.second == s; }); \ + if (it == last) \ + { \ + if (s.empty()) \ + { \ + return value_type(); \ + } \ + else \ + { \ + JSONCONS_THROW(conv_error(conv_errc::conversion_failed, "Not an enum")); \ + } \ + } \ + return it->first; \ + } \ + static Json to_json(value_type aval, allocator_type alloc=allocator_type()) \ + { \ + static constexpr char_type empty_string[] = {0}; \ + auto first = get_values().first; \ + auto last = get_values().second; \ + auto it = std::find_if(first, last, \ + [aval](const mapped_type& item) -> bool \ + { return item.first == aval; }); \ + if (it == last) \ + { \ + if (aval == value_type()) \ + { \ + return Json(empty_string); \ + } \ + else \ + { \ + JSONCONS_THROW(conv_error(conv_errc::conversion_failed, "Not an enum")); \ + } \ + } \ + return Json(it->second,alloc); \ + } \ + }; \ +} \ + /**/ + +#define JSONCONS_ENUM_TRAITS(EnumType, ...) \ + JSONCONS_ENUM_TRAITS_BASE(EnumType,__VA_ARGS__) \ + namespace jsoncons { template <> struct is_json_type_traits_declared : public std::true_type {}; } \ + /**/ + +#define JSONCONS_NAME_ENUM_PAIR(P1, P2, P3, Seq, Count) JSONCONS_EXPAND(JSONCONS_NAME_ENUM_PAIR_ Seq), +#define JSONCONS_NAME_ENUM_PAIR_LAST(P1, P2, P3, Seq, Count) JSONCONS_EXPAND(JSONCONS_NAME_ENUM_PAIR_ Seq) +#define JSONCONS_NAME_ENUM_PAIR_(Member, Name) {value_type::Member, Name} + +#define JSONCONS_ENUM_NAME_TRAITS(EnumType, ...) \ +namespace jsoncons \ +{ \ + template \ + struct json_type_traits \ + { \ + static_assert(std::is_enum::value, # EnumType " must be an enum"); \ + using value_type = EnumType; \ + using char_type = typename Json::char_type; \ + using string_type = std::basic_string; \ + using string_view_type = jsoncons::basic_string_view; \ + using allocator_type = typename Json::allocator_type; \ + using mapped_type = std::pair; \ + \ + static std::pair get_values() \ + { \ + static const mapped_type v[] = { \ + JSONCONS_VARIADIC_REP_N(JSONCONS_NAME_ENUM_PAIR,,,, __VA_ARGS__)\ + };\ + return std::make_pair(v,v+JSONCONS_NARGS(__VA_ARGS__)); \ + } \ + \ + static bool is(const Json& ajson) noexcept \ + { \ + if (!ajson.is_string()) return false; \ + auto first = get_values().first; \ + auto last = get_values().second; \ + const string_view_type s = ajson.template as(); \ + if (s.empty() && std::find_if(first, last, \ + [](const mapped_type& item) -> bool \ + { return item.first == value_type(); }) == last) \ + { \ + return true; \ + } \ + auto it = std::find_if(first, last, \ + [&](const mapped_type& item) -> bool \ + { return item.second == s; }); \ + return it != last; \ + } \ + static value_type as(const Json& ajson) \ + { \ + if (!is(ajson)) JSONCONS_THROW(conv_error(conv_errc::conversion_failed, "Not a " # EnumType)); \ + const string_view_type s = ajson.template as(); \ + auto first = get_values().first; \ + auto last = get_values().second; \ + if (s.empty() && std::find_if(first, last, \ + [](const mapped_type& item) -> bool \ + { return item.first == value_type(); }) == last) \ + { \ + return value_type(); \ + } \ + auto it = std::find_if(first, last, \ + [&](const mapped_type& item) -> bool \ + { return item.second == s; }); \ + if (it == last) \ + { \ + if (s.empty()) \ + { \ + return value_type(); \ + } \ + else \ + { \ + JSONCONS_THROW(conv_error(conv_errc::conversion_failed, "Not an enum")); \ + } \ + } \ + return it->first; \ + } \ + static Json to_json(value_type aval, allocator_type alloc=allocator_type()) \ + { \ + static constexpr char_type empty_string[] = {0}; \ + auto first = get_values().first; \ + auto last = get_values().second; \ + auto it = std::find_if(first, last, \ + [aval](const mapped_type& item) -> bool \ + { return item.first == aval; }); \ + if (it == last) \ + { \ + if (aval == value_type()) \ + { \ + return Json(empty_string); \ + } \ + else \ + { \ + JSONCONS_THROW(conv_error(conv_errc::conversion_failed, "Not an enum")); \ + } \ + } \ + return Json(it->second,alloc); \ + } \ + }; \ + template <> struct is_json_type_traits_declared : public std::true_type {}; \ +} \ + /**/ + +#define JSONCONS_GETTER_SETTER_AS(Prefix, GetPrefix, SetPrefix, Property, Count) JSONCONS_GETTER_SETTER_AS_(Prefix, GetPrefix ## Property, SetPrefix ## Property, Property, Count) +#define JSONCONS_GETTER_SETTER_AS_LAST(Prefix, GetPrefix, SetPrefix, Property, Count) JSONCONS_GETTER_SETTER_AS_(Prefix, GetPrefix ## Property, SetPrefix ## Property, Property, Count) +#define JSONCONS_GETTER_SETTER_AS_(Prefix, Getter, Setter, Property, Count) if ((num_params-Count) < num_mandatory_params2 || ajson.contains(json_traits_macro_names::Property##_str(char_type{}))) {aval.Setter(ajson.at(json_traits_macro_names::Property##_str(char_type{})).template as::type>());} + +#define JSONCONS_ALL_GETTER_SETTER_AS(Prefix, GetPrefix, SetPrefix, Property, Count) JSONCONS_ALL_GETTER_SETTER_AS_(Prefix, GetPrefix ## Property, SetPrefix ## Property, Property, Count) +#define JSONCONS_ALL_GETTER_SETTER_AS_LAST(Prefix, GetPrefix, SetPrefix, Property, Count) JSONCONS_ALL_GETTER_SETTER_AS_(Prefix, GetPrefix ## Property, SetPrefix ## Property, Property, Count) +#define JSONCONS_ALL_GETTER_SETTER_AS_(Prefix, Getter, Setter, Property, Count) aval.Setter(ajson.at(json_traits_macro_names::Property##_str(char_type{})).template as::type>()); + +#define JSONCONS_GETTER_SETTER_TO_JSON(Prefix, GetPrefix, SetPrefix, Property, Count) JSONCONS_GETTER_SETTER_TO_JSON_(Prefix, GetPrefix ## Property, SetPrefix ## Property, Property, Count) +#define JSONCONS_GETTER_SETTER_TO_JSON_LAST(Prefix, GetPrefix, SetPrefix, Property, Count) JSONCONS_GETTER_SETTER_TO_JSON_(Prefix, GetPrefix ## Property, SetPrefix ## Property, Property, Count) +#define JSONCONS_GETTER_SETTER_TO_JSON_(Prefix, Getter, Setter, Property, Count) \ +if ((num_params-Count) < num_mandatory_params2) \ + {ajson.try_emplace(json_traits_macro_names::Property##_str(char_type{}), aval.Getter());} \ +else \ + {json_traits_helper::set_optional_json_member(json_traits_macro_names::Property##_str(char_type{}), aval.Getter(), ajson);} + +#define JSONCONS_ALL_GETTER_SETTER_TO_JSON(Prefix, GetPrefix, SetPrefix, Property, Count) JSONCONS_ALL_GETTER_SETTER_TO_JSON_(Prefix, GetPrefix ## Property, SetPrefix ## Property, Property, Count) +#define JSONCONS_ALL_GETTER_SETTER_TO_JSON_LAST(Prefix, GetPrefix, SetPrefix, Property, Count) JSONCONS_ALL_GETTER_SETTER_TO_JSON_(Prefix, GetPrefix ## Property, SetPrefix ## Property, Property, Count) +#define JSONCONS_ALL_GETTER_SETTER_TO_JSON_(Prefix, Getter, Setter, Property, Count) ajson.try_emplace(json_traits_macro_names::Property##_str(char_type{}), aval.Getter() ); + +#define JSONCONS_GETTER_SETTER_TRAITS_BASE(AsT,ToJ,NumTemplateParams, ValueType,GetPrefix,SetPrefix,NumMandatoryParams1,NumMandatoryParams2, ...) \ +namespace jsoncons \ +{ \ + template \ + struct json_traits_macro_names \ + { \ + JSONCONS_VARIADIC_REP_N(JSONCONS_GENERATE_NAME_STR, ,,, __VA_ARGS__)\ + }; \ + template \ + struct json_type_traits \ + { \ + using value_type = ValueType JSONCONS_GENERATE_TPL_ARGS(JSONCONS_GENERATE_TPL_ARG, NumTemplateParams); \ + using allocator_type = typename Json::allocator_type; \ + using char_type = typename Json::char_type; \ + using string_view_type = typename Json::string_view_type; \ + constexpr static size_t num_params = JSONCONS_NARGS(__VA_ARGS__); \ + constexpr static size_t num_mandatory_params1 = NumMandatoryParams1; \ + constexpr static size_t num_mandatory_params2 = NumMandatoryParams2; \ + static bool is(const Json& ajson) noexcept \ + { \ + if (!ajson.is_object()) return false; \ + JSONCONS_VARIADIC_REP_N(JSONCONS_N_MEMBER_IS, ,GetPrefix,SetPrefix, __VA_ARGS__)\ + return true; \ + } \ + static value_type as(const Json& ajson) \ + { \ + if (!is(ajson)) JSONCONS_THROW(conv_error(conv_errc::conversion_failed, "Not a " # ValueType)); \ + value_type aval{}; \ + JSONCONS_VARIADIC_REP_N(AsT, ,GetPrefix,SetPrefix, __VA_ARGS__) \ + return aval; \ + } \ + static Json to_json(const value_type& aval, allocator_type alloc=allocator_type()) \ + { \ + Json ajson(json_object_arg, semantic_tag::none, alloc); \ + JSONCONS_VARIADIC_REP_N(ToJ, ,GetPrefix,SetPrefix, __VA_ARGS__) \ + return ajson; \ + } \ + }; \ +} \ + /**/ + +#define JSONCONS_N_GETTER_SETTER_TRAITS(ValueType,GetPrefix,SetPrefix,NumMandatoryParams, ...) \ + JSONCONS_GETTER_SETTER_TRAITS_BASE(JSONCONS_GETTER_SETTER_AS, JSONCONS_GETTER_SETTER_TO_JSON,0, ValueType,GetPrefix,SetPrefix,NumMandatoryParams,NumMandatoryParams, __VA_ARGS__) \ + namespace jsoncons { template <> struct is_json_type_traits_declared : public std::true_type {}; } \ + /**/ + +#define JSONCONS_TPL_N_GETTER_SETTER_TRAITS(NumTemplateParams, ValueType,GetPrefix,SetPrefix,NumMandatoryParams, ...) \ + JSONCONS_GETTER_SETTER_TRAITS_BASE(JSONCONS_GETTER_SETTER_AS, JSONCONS_GETTER_SETTER_TO_JSON,NumTemplateParams, ValueType,GetPrefix,SetPrefix,NumMandatoryParams,NumMandatoryParams, __VA_ARGS__) \ + namespace jsoncons { template struct is_json_type_traits_declared : public std::true_type {}; } \ + /**/ + +#define JSONCONS_ALL_GETTER_SETTER_TRAITS(ValueType,GetPrefix,SetPrefix, ...) \ + JSONCONS_GETTER_SETTER_TRAITS_BASE(JSONCONS_ALL_GETTER_SETTER_AS, JSONCONS_ALL_GETTER_SETTER_TO_JSON,0,ValueType,GetPrefix,SetPrefix, JSONCONS_NARGS(__VA_ARGS__), JSONCONS_NARGS(__VA_ARGS__),__VA_ARGS__) \ + namespace jsoncons { template <> struct is_json_type_traits_declared : public std::true_type {}; } \ + /**/ + +#define JSONCONS_TPL_ALL_GETTER_SETTER_TRAITS(NumTemplateParams, ValueType,GetPrefix,SetPrefix, ...) \ + JSONCONS_GETTER_SETTER_TRAITS_BASE(JSONCONS_ALL_GETTER_SETTER_AS, JSONCONS_ALL_GETTER_SETTER_TO_JSON,NumTemplateParams,ValueType,GetPrefix,SetPrefix, JSONCONS_NARGS(__VA_ARGS__), JSONCONS_NARGS(__VA_ARGS__),__VA_ARGS__) \ + namespace jsoncons { template struct is_json_type_traits_declared : public std::true_type {}; } \ + /**/ + +#define JSONCONS_GETTER_SETTER_NAME_IS(P1, P2, P3, Seq, Count) JSONCONS_GETTER_SETTER_NAME_IS_LAST(P1, P2, P3, Seq, Count) +#define JSONCONS_GETTER_SETTER_NAME_IS_LAST(P1, P2, P3, Seq, Count) if ((num_params-Count) < num_mandatory_params1 && JSONCONS_EXPAND(JSONCONS_CONCAT(JSONCONS_GETTER_SETTER_NAME_IS_,JSONCONS_NARGS Seq) Seq) +#define JSONCONS_GETTER_SETTER_NAME_IS_3(Getter, Setter, Name) !ajson.contains(Name)) return false; +#define JSONCONS_GETTER_SETTER_NAME_IS_5(Getter, Setter, Name, Mode, Match) JSONCONS_GETTER_SETTER_NAME_IS_7(Getter, Setter, Name, Mode, Match,, ) +#define JSONCONS_GETTER_SETTER_NAME_IS_6(Getter, Setter, Name, Mode, Match, Into) JSONCONS_GETTER_SETTER_NAME_IS_7(Getter, Setter, Name, Mode, Match, Into, ) +#define JSONCONS_GETTER_SETTER_NAME_IS_7(Getter, Setter, Name, Mode, Match, Into, From) !ajson.contains(Name)) return false; \ + JSONCONS_TRY{if (!Match(ajson.at(Name).template as())->Getter()))>::type>())) return false;} \ + JSONCONS_CATCH(...) {return false;} + +#define JSONCONS_N_GETTER_SETTER_NAME_AS(P1, P2, P3, Seq, Count) JSONCONS_N_GETTER_SETTER_NAME_AS_LAST(P1, P2, P3, Seq, Count) +#define JSONCONS_N_GETTER_SETTER_NAME_AS_LAST(P1, P2, P3, Seq, Count) JSONCONS_EXPAND(JSONCONS_CONCAT(JSONCONS_N_GETTER_SETTER_NAME_AS_,JSONCONS_NARGS Seq) Seq) +#define JSONCONS_N_GETTER_SETTER_NAME_AS_3(Getter, Setter, Name) if (ajson.contains(Name)) aval.Setter(ajson.at(Name).template as::type>()); +#define JSONCONS_N_GETTER_SETTER_NAME_AS_4(Getter, Setter, Name, Mode) Mode(JSONCONS_N_GETTER_SETTER_NAME_AS_3(Getter, Setter, Name)) +#define JSONCONS_N_GETTER_SETTER_NAME_AS_5(Getter, Setter, Name, Mode, Match) JSONCONS_N_GETTER_SETTER_NAME_AS_7(Getter, Setter, Name, Mode, Match, , ) +#define JSONCONS_N_GETTER_SETTER_NAME_AS_6(Getter, Setter, Name, Mode, Match, Into) JSONCONS_N_GETTER_SETTER_NAME_AS_7(Getter, Setter, Name, Mode, Match, Into, ) +#define JSONCONS_N_GETTER_SETTER_NAME_AS_7(Getter, Setter, Name, Mode, Match, Into, From) Mode(if (ajson.contains(Name)) aval.Setter(From(ajson.at(Name).template as::type>()));) + +#define JSONCONS_N_GETTER_SETTER_NAME_TO_JSON(P1, P2, P3, Seq, Count) JSONCONS_N_GETTER_SETTER_NAME_TO_JSON_LAST(P1, P2, P3, Seq, Count) +#define JSONCONS_N_GETTER_SETTER_NAME_TO_JSON_LAST(P1, P2, P3, Seq, Count) JSONCONS_EXPAND(JSONCONS_CONCAT(JSONCONS_N_GETTER_SETTER_NAME_TO_JSON_,JSONCONS_NARGS Seq) Seq) +#define JSONCONS_N_GETTER_SETTER_NAME_TO_JSON_3(Getter, Setter, Name) ajson.try_emplace(Name, aval.Getter() ); +#define JSONCONS_N_GETTER_SETTER_NAME_TO_JSON_5(Getter, Setter, Name, Mode, Match) JSONCONS_N_GETTER_SETTER_NAME_TO_JSON_7(Getter, Setter, Name, Mode, Match, , ) +#define JSONCONS_N_GETTER_SETTER_NAME_TO_JSON_6(Getter, Setter, Name, Mode, Match, Into) JSONCONS_N_GETTER_SETTER_NAME_TO_JSON_7(Getter, Setter, Name, Mode, Match, Into, ) +#define JSONCONS_N_GETTER_SETTER_NAME_TO_JSON_7(Getter, Setter, Name, Mode, Match, Into, From) ajson.try_emplace(Name, Into(aval.Getter()) ); + +#define JSONCONS_ALL_GETTER_SETTER_NAME_AS(P1, P2, P3, Seq, Count) JSONCONS_ALL_GETTER_SETTER_NAME_AS_LAST(P1, P2, P3, Seq, Count) +#define JSONCONS_ALL_GETTER_SETTER_NAME_AS_LAST(P1, P2, P3, Seq, Count) JSONCONS_EXPAND(JSONCONS_CONCAT(JSONCONS_ALL_GETTER_SETTER_NAME_AS_,JSONCONS_NARGS Seq) Seq) +#define JSONCONS_ALL_GETTER_SETTER_NAME_AS_3(Getter, Setter, Name) aval.Setter(ajson.at(Name).template as::type>()); +#define JSONCONS_ALL_GETTER_SETTER_NAME_AS_4(Getter, Setter, Name, Mode) Mode(JSONCONS_ALL_GETTER_SETTER_NAME_AS_3(Getter, Setter, Name)) +#define JSONCONS_ALL_GETTER_SETTER_NAME_AS_5(Getter, Setter, Name, Mode, Match) JSONCONS_ALL_GETTER_SETTER_NAME_AS_7(Getter, Setter, Name, Mode, Match, , ) +#define JSONCONS_ALL_GETTER_SETTER_NAME_AS_6(Getter, Setter, Name, Mode, Match, Into) JSONCONS_ALL_GETTER_SETTER_NAME_AS_7(Getter, Setter, Name, Mode, Match, Into, ) +#define JSONCONS_ALL_GETTER_SETTER_NAME_AS_7(Getter, Setter, Name, Mode, Match, Into, From) Mode(aval.Setter(From(ajson.at(Name).template as::type>()));) + +#define JSONCONS_ALL_GETTER_SETTER_NAME_TO_JSON(P1, P2, P3, Seq, Count) JSONCONS_ALL_GETTER_SETTER_NAME_TO_JSON_LAST(P1, P2, P3, Seq, Count) +#define JSONCONS_ALL_GETTER_SETTER_NAME_TO_JSON_LAST(P1, P2, P3, Seq, Count) if ((num_params-Count) < num_mandatory_params2) JSONCONS_EXPAND(JSONCONS_CONCAT(JSONCONS_ALL_GETTER_SETTER_NAME_TO_JSON_,JSONCONS_NARGS Seq) Seq) +#define JSONCONS_ALL_GETTER_SETTER_NAME_TO_JSON_3(Getter, Setter, Name) \ + ajson.try_emplace(Name, aval.Getter()); \ +else \ + {json_traits_helper::set_optional_json_member(Name, aval.Getter(), ajson);} +#define JSONCONS_ALL_GETTER_SETTER_NAME_TO_JSON_5(Getter, Setter, Name, Mode, Match) JSONCONS_ALL_GETTER_SETTER_NAME_TO_JSON_7(Getter, Setter, Name, Mode, Match, , ) +#define JSONCONS_ALL_GETTER_SETTER_NAME_TO_JSON_6(Getter, Setter, Name, Mode, Match, Into) JSONCONS_ALL_GETTER_SETTER_NAME_TO_JSON_7(Getter, Setter, Name, Mode, Match, Into, ) +#define JSONCONS_ALL_GETTER_SETTER_NAME_TO_JSON_7(Getter, Setter, Name, Mode, Match, Into, From) \ + ajson.try_emplace(Name, Into(aval.Getter())); \ +else \ + {json_traits_helper::set_optional_json_member(Name, Into(aval.Getter()), ajson);} + +#define JSONCONS_GETTER_SETTER_NAME_TRAITS_BASE(AsT,ToJ, NumTemplateParams, ValueType,NumMandatoryParams1,NumMandatoryParams2, ...) \ +namespace jsoncons \ +{ \ + template \ + struct json_type_traits \ + { \ + using value_type = ValueType JSONCONS_GENERATE_TPL_ARGS(JSONCONS_GENERATE_TPL_ARG, NumTemplateParams); \ + using allocator_type = typename Json::allocator_type; \ + using char_type = typename Json::char_type; \ + using string_view_type = typename Json::string_view_type; \ + constexpr static size_t num_params = JSONCONS_NARGS(__VA_ARGS__); \ + constexpr static size_t num_mandatory_params1 = NumMandatoryParams1; \ + constexpr static size_t num_mandatory_params2 = NumMandatoryParams2; \ + static bool is(const Json& ajson) noexcept \ + { \ + if (!ajson.is_object()) return false; \ + JSONCONS_VARIADIC_REP_N(JSONCONS_GETTER_SETTER_NAME_IS,,,, __VA_ARGS__)\ + return true; \ + } \ + static value_type as(const Json& ajson) \ + { \ + if (!is(ajson)) JSONCONS_THROW(conv_error(conv_errc::conversion_failed, "Not a " # ValueType)); \ + value_type aval{}; \ + JSONCONS_VARIADIC_REP_N(AsT,,,, __VA_ARGS__) \ + return aval; \ + } \ + static Json to_json(const value_type& aval, allocator_type alloc=allocator_type()) \ + { \ + Json ajson(json_object_arg, semantic_tag::none, alloc); \ + JSONCONS_VARIADIC_REP_N(ToJ,,,, __VA_ARGS__) \ + return ajson; \ + } \ + }; \ +} \ + /**/ + +#define JSONCONS_N_GETTER_SETTER_NAME_TRAITS(ValueType,NumMandatoryParams, ...) \ + JSONCONS_GETTER_SETTER_NAME_TRAITS_BASE(JSONCONS_N_GETTER_SETTER_NAME_AS,JSONCONS_N_GETTER_SETTER_NAME_TO_JSON, 0, ValueType,NumMandatoryParams,NumMandatoryParams, __VA_ARGS__) \ + namespace jsoncons { template <> struct is_json_type_traits_declared : public std::true_type {}; } \ + /**/ + +#define JSONCONS_TPL_N_GETTER_SETTER_NAME_TRAITS(NumTemplateParams, ValueType,NumMandatoryParams, ...) \ + JSONCONS_GETTER_SETTER_NAME_TRAITS_BASE(JSONCONS_N_GETTER_SETTER_NAME_AS,JSONCONS_N_GETTER_SETTER_NAME_TO_JSON, NumTemplateParams, ValueType,NumMandatoryParams,NumMandatoryParams, __VA_ARGS__) \ + namespace jsoncons { template struct is_json_type_traits_declared : public std::true_type {}; } \ + /**/ + +#define JSONCONS_ALL_GETTER_SETTER_NAME_TRAITS(ValueType, ...) \ + JSONCONS_GETTER_SETTER_NAME_TRAITS_BASE(JSONCONS_ALL_GETTER_SETTER_NAME_AS,JSONCONS_ALL_GETTER_SETTER_NAME_TO_JSON, 0, ValueType, JSONCONS_NARGS(__VA_ARGS__), JSONCONS_NARGS(__VA_ARGS__), __VA_ARGS__) \ + namespace jsoncons { template <> struct is_json_type_traits_declared : public std::true_type {}; } \ + /**/ + +#define JSONCONS_TPL_ALL_GETTER_SETTER_NAME_TRAITS(NumTemplateParams, ValueType, ...) \ + JSONCONS_GETTER_SETTER_NAME_TRAITS_BASE(JSONCONS_ALL_GETTER_SETTER_NAME_AS,JSONCONS_ALL_GETTER_SETTER_NAME_TO_JSON, NumTemplateParams, ValueType, JSONCONS_NARGS(__VA_ARGS__), JSONCONS_NARGS(__VA_ARGS__), __VA_ARGS__) \ + namespace jsoncons { template struct is_json_type_traits_declared : public std::true_type {}; } \ + /**/ + +#define JSONCONS_POLYMORPHIC_IS(BaseClass, P2, P3, DerivedClass, Count) if (ajson.template is()) return true; +#define JSONCONS_POLYMORPHIC_IS_LAST(BaseClass, P2, P3, DerivedClass, Count) if (ajson.template is()) return true; + +#define JSONCONS_POLYMORPHIC_AS(BaseClass, P2, P3, DerivedClass, Count) if (ajson.template is()) return std::make_shared(ajson.template as()); +#define JSONCONS_POLYMORPHIC_AS_LAST(BaseClass, P2, P3, DerivedClass, Count) if (ajson.template is()) return std::make_shared(ajson.template as()); + +#define JSONCONS_POLYMORPHIC_AS_UNIQUE_PTR(BaseClass, P2, P3, DerivedClass, Count) if (ajson.template is()) return jsoncons::make_unique(ajson.template as()); +#define JSONCONS_POLYMORPHIC_AS_UNIQUE_PTR_LAST(BaseClass, P2, P3, DerivedClass, Count) if (ajson.template is()) return jsoncons::make_unique(ajson.template as()); + +#define JSONCONS_POLYMORPHIC_AS_SHARED_PTR(BaseClass, P2, P3, DerivedClass, Count) if (ajson.template is()) return std::make_shared(ajson.template as()); +#define JSONCONS_POLYMORPHIC_AS_SHARED_PTR_LAST(BaseClass, P2, P3, DerivedClass, Count) if (ajson.template is()) return std::make_shared(ajson.template as()); + +#define JSONCONS_POLYMORPHIC_TO_JSON(BaseClass, P2, P3, DerivedClass, Count) if (DerivedClass* p = dynamic_cast(ptr.get())) {return Json(*p);} +#define JSONCONS_POLYMORPHIC_TO_JSON_LAST(BaseClass, P2, P3, DerivedClass, Count) if (DerivedClass* p = dynamic_cast(ptr.get())) {return Json(*p);} + +#define JSONCONS_POLYMORPHIC_TRAITS(BaseClass, ...) \ +namespace jsoncons { \ + template \ + struct json_type_traits> { \ + static bool is(const Json& ajson) noexcept { \ + if (!ajson.is_object()) return false; \ + JSONCONS_VARIADIC_REP_N(JSONCONS_POLYMORPHIC_IS, BaseClass,,, __VA_ARGS__)\ + return false; \ + } \ +\ + static std::shared_ptr as(const Json& ajson) { \ + if (!ajson.is_object()) return std::shared_ptr(); \ + JSONCONS_VARIADIC_REP_N(JSONCONS_POLYMORPHIC_AS_SHARED_PTR, BaseClass,,, __VA_ARGS__)\ + return std::shared_ptr(); \ + } \ +\ + static Json to_json(const std::shared_ptr& ptr) { \ + if (ptr.get() == nullptr) {return Json::null();} \ + JSONCONS_VARIADIC_REP_N(JSONCONS_POLYMORPHIC_TO_JSON, BaseClass,,, __VA_ARGS__)\ + return Json::null(); \ + } \ + }; \ + template \ + struct json_type_traits> { \ + static bool is(const Json& ajson) noexcept { \ + if (!ajson.is_object()) return false; \ + JSONCONS_VARIADIC_REP_N(JSONCONS_POLYMORPHIC_IS, BaseClass,,, __VA_ARGS__)\ + return false; \ + } \ + static std::unique_ptr as(const Json& ajson) { \ + if (!ajson.is_object()) return std::unique_ptr(); \ + JSONCONS_VARIADIC_REP_N(JSONCONS_POLYMORPHIC_AS_UNIQUE_PTR, BaseClass,,, __VA_ARGS__)\ + return std::unique_ptr(); \ + } \ + static Json to_json(const std::unique_ptr& ptr) { \ + if (ptr.get() == nullptr) {return Json::null();} \ + JSONCONS_VARIADIC_REP_N(JSONCONS_POLYMORPHIC_TO_JSON, BaseClass,,, __VA_ARGS__)\ + return Json::null(); \ + } \ + }; \ +} \ + /**/ + +#endif diff --git a/include/jsoncons/json_traits_macros_deprecated.hpp b/include/jsoncons/json_traits_macros_deprecated.hpp new file mode 100644 index 0000000..0d44e38 --- /dev/null +++ b/include/jsoncons/json_traits_macros_deprecated.hpp @@ -0,0 +1,144 @@ +// Copyright 2019 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSON_TRAITS_MACROS_DEPRECATED_HPP +#define JSONCONS_JSON_TRAITS_MACROS_DEPRECATED_HPP + +#include + +#if !defined(JSONCONS_NO_DEPRECATED) + +#define JSONCONS_MEMBER_TRAITS_DECL(ValueType, ...) \ + JSONCONS_MEMBER_TRAITS_BASE(JSONCONS_AS,JSONCONS_TO_JSON,0, ValueType, JSONCONS_NARGS(__VA_ARGS__), 0, __VA_ARGS__) \ + /**/ + +#define JSONCONS_TPL_MEMBER_TRAITS_DECL(NumTemplateParams, ValueType, ...) \ + JSONCONS_MEMBER_TRAITS_BASE(JSONCONS_AS,JSONCONS_TO_JSON,NumTemplateParams, ValueType, JSONCONS_NARGS(__VA_ARGS__), 0, __VA_ARGS__) \ + /**/ + +#define JSONCONS_MEMBER_NAMED_TRAITS_DECL(ValueType, ...) \ + JSONCONS_MEMBER_NAME_TRAITS_BASE(JSONCONS_NAME_AS, JSONCONS_NAME_TO_JSON, 0, ValueType, JSONCONS_NARGS(__VA_ARGS__), 0, __VA_ARGS__) \ + /**/ + +#define JSONCONS_TPL_MEMBER_NAMED_TRAITS_DECL(NumTemplateParams, ValueType, ...) \ + JSONCONS_MEMBER_NAME_TRAITS_BASE(JSONCONS_NAME_AS, JSONCONS_NAME_TO_JSON, NumTemplateParams, ValueType, JSONCONS_NARGS(__VA_ARGS__), 0, __VA_ARGS__) \ + /**/ + +#define JSONCONS_GETTER_SETTER_TRAITS_DECL(ValueType,GetPrefix,SetPrefix, ...) \ + JSONCONS_GETTER_SETTER_TRAITS_BASE(JSONCONS_GETTER_SETTER_AS, JSONCONS_GETTER_SETTER_TO_JSON,0, ValueType,GetPrefix,SetPrefix, JSONCONS_NARGS(__VA_ARGS__), 0, __VA_ARGS__) \ + /**/ + +#define JSONCONS_TPL_GETTER_SETTER_TRAITS_DECL(NumTemplateParams, ValueType,GetPrefix,SetPrefix, ...) \ + JSONCONS_GETTER_SETTER_TRAITS_BASE(JSONCONS_GETTER_SETTER_AS, JSONCONS_GETTER_SETTER_TO_JSON,NumTemplateParams, ValueType,GetPrefix,SetPrefix, JSONCONS_NARGS(__VA_ARGS__), 0, __VA_ARGS__) \ + /**/ + +#define JSONCONS_GETTER_SETTER_NAMED_TRAITS_DECL(ValueType, ...) \ +JSONCONS_GETTER_SETTER_NAME_TRAITS_BASE(JSONCONS_GETTER_SETTER_NAME_AS,JSONCONS_GETTER_SETTER_NAME_TO_JSON, 0, ValueType, JSONCONS_NARGS(__VA_ARGS__), 0, __VA_ARGS__) \ + /**/ + +#define JSONCONS_TPL_GETTER_SETTER_NAMED_TRAITS_DECL(NumTemplateParams, ValueType, ...) \ +JSONCONS_GETTER_SETTER_NAME_TRAITS_BASE(JSONCONS_GETTER_SETTER_NAME_AS,JSONCONS_GETTER_SETTER_NAME_TO_JSON, NumTemplateParams, ValueType, JSONCONS_NARGS(__VA_ARGS__), 0, __VA_ARGS__) \ + /**/ + +#define JSONCONS_ALL_GETTER_CTOR_TRAITS JSONCONS_ALL_CTOR_GETTER_TRAITS +#define JSONCONS_N_GETTER_CTOR_TRAITS JSONCONS_N_CTOR_GETTER_TRAITS +#define JSONCONS_TPL_ALL_GETTER_CTOR_TRAITS JSONCONS_TPL_ALL_CTOR_GETTER_TRAITS +#define JSONCONS_TPL_N_GETTER_CTOR_TRAITS JSONCONS_TPL_N_CTOR_GETTER_TRAITS + +#define JSONCONS_ALL_GETTER_CTOR_NAME_TRAITS JSONCONS_ALL_CTOR_GETTER_NAME_TRAITS +#define JSONCONS_N_GETTER_CTOR_NAME_TRAITS JSONCONS_N_CTOR_GETTER_NAME_TRAITS +#define JSONCONS_TPL_ALL_GETTER_CTOR_NAME_TRAITS JSONCONS_TPL_ALL_CTOR_GETTER_NAME_TRAITS +#define JSONCONS_TPL_N_GETTER_CTOR_NAME_TRAITS JSONCONS_TPL_N_CTOR_GETTER_NAME_TRAITS + +#define JSONCONS_PROPERTY_TRAITS_DECL JSONCONS_GETTER_SETTER_TRAITS_DECL +#define JSONCONS_TPL_PROPERTY_TRAITS_DECL JSONCONS_TPL_GETTER_SETTER_TRAITS_DECL +#define JSONCONS_TYPE_TRAITS_DECL JSONCONS_MEMBER_TRAITS_DECL +#define JSONCONS_MEMBER_TRAITS_NAMED_DECL JSONCONS_MEMBER_NAMED_TRAITS_DECL +#define JSONCONS_TEMPLATE_MEMBER_TRAITS_NAMED_DECL JSONCONS_TPL_MEMBER_NAMED_TRAITS_DECL +#define JSONCONS_TEMPLATE_GETTER_SETTER_TRAITS_NAMED_DECL JSONCONS_TPL_GETTER_SETTER_NAMED_TRAITS_DECL +#define JSONCONS_TEMPLATE_MEMBER_TRAITS_DECL JSONCONS_TPL_MEMBER_TRAITS_DECL + +#define JSONCONS_N_MEMBER_NAMED_TRAITS JSONCONS_N_MEMBER_NAME_TRAITS +#define JSONCONS_TPL_N_MEMBER_NAMED_TRAITS JSONCONS_TPL_N_MEMBER_NAME_TRAITS +#define JSONCONS_ALL_MEMBER_NAMED_TRAITS JSONCONS_ALL_MEMBER_NAME_TRAITS +#define JSONCONS_TPL_ALL_MEMBER_NAMED_TRAITS JSONCONS_TPL_ALL_MEMBER_NAME_TRAITS + +#define JSONCONS_ALL_GETTER_CTOR_NAMED_TRAITS JSONCONS_ALL_GETTER_CTOR_NAME_TRAITS +#define JSONCONS_TPL_ALL_GETTER_CTOR_NAMED_TRAITS JSONCONS_TPL_ALL_GETTER_CTOR_NAME_TRAITS +#define JSONCONS_N_GETTER_CTOR_NAMED_TRAITS JSONCONS_N_GETTER_CTOR_NAME_TRAITS +#define JSONCONS_TPL_N_GETTER_CTOR_NAMED_TRAITS JSONCONS_TPL_N_GETTER_CTOR_NAME_TRAITS + +#define JSONCONS_ENUM_NAMED_TRAITS JSONCONS_ENUM_NAME_TRAITS + +#define JSONCONS_N_GETTER_SETTER_NAMED_TRAITS JSONCONS_N_GETTER_SETTER_NAME_TRAITS +#define JSONCONS_TPL_N_GETTER_SETTER_NAMED_TRAITS JSONCONS_TPL_N_GETTER_SETTER_NAME_TRAITS +#define JSONCONS_ALL_GETTER_SETTER_NAMED_TRAITS JSONCONS_ALL_GETTER_SETTER_NAME_TRAITS +#define JSONCONS_TPL_ALL_GETTER_SETTER_NAMED_TRAITS JSONCONS_TPL_ALL_GETTER_SETTER_NAME_TRAITS + +#define JSONCONS_N_MEMBER_TRAITS_DECL JSONCONS_N_MEMBER_TRAITS +#define JSONCONS_TPL_N_MEMBER_TRAITS_DECL JSONCONS_TPL_N_MEMBER_TRAITS +#define JSONCONS_ALL_MEMBER_TRAITS_DECL JSONCONS_ALL_MEMBER_TRAITS +#define JSONCONS_TPL_ALL_MEMBER_TRAITS_DECL JSONCONS_TPL_ALL_MEMBER_TRAITS +#define JSONCONS_N_MEMBER_NAMED_TRAITS_DECL JSONCONS_N_MEMBER_NAMED_TRAITS +#define JSONCONS_TPL_N_MEMBER_NAMED_TRAITS_DECL JSONCONS_TPL_N_MEMBER_NAMED_TRAITS +#define JSONCONS_ALL_MEMBER_NAMED_TRAITS_DECL JSONCONS_ALL_MEMBER_NAMED_TRAITS +#define JSONCONS_TPL_ALL_MEMBER_NAMED_TRAITS_DECL JSONCONS_TPL_ALL_MEMBER_NAMED_TRAITS +#define JSONCONS_ALL_GETTER_CTOR_TRAITS_DECL JSONCONS_ALL_GETTER_CTOR_TRAITS +#define JSONCONS_TPL_ALL_GETTER_CTOR_TRAITS_DECL JSONCONS_TPL_ALL_GETTER_CTOR_TRAITS +#define JSONCONS_N_GETTER_CTOR_TRAITS_DECL JSONCONS_N_GETTER_CTOR_TRAITS +#define JSONCONS_N_ALL_GETTER_CTOR_TRAITS_DECL JSONCONS_N_ALL_GETTER_CTOR_TRAITS +#define JSONCONS_ALL_GETTER_CTOR_NAMED_TRAITS_DECL JSONCONS_ALL_GETTER_CTOR_NAMED_TRAITS +#define JSONCONS_TPL_ALL_GETTER_CTOR_NAMED_TRAITS_DECL JSONCONS_TPL_ALL_GETTER_CTOR_NAMED_TRAITS +#define JSONCONS_N_GETTER_CTOR_NAMED_TRAITS_DECL JSONCONS_N_GETTER_CTOR_NAMED_TRAITS +#define JSONCONS_TPL_N_GETTER_CTOR_NAMED_TRAITS_DECL JSONCONS_TPL_N_GETTER_CTOR_NAMED_TRAITS +#define JSONCONS_ENUM_TRAITS_DECL JSONCONS_ENUM_TRAITS +#define JSONCONS_ENUM_NAMED_TRAITS_DECL JSONCONS_ENUM_NAMED_TRAITS +#define JSONCONS_N_GETTER_SETTER_TRAITS_DECL JSONCONS_N_GETTER_SETTER_TRAITS +#define JSONCONS_TPL_N_GETTER_SETTER_TRAITS_DECL JSONCONS_TPL_N_GETTER_SETTER_TRAITS +#define JSONCONS_ALL_GETTER_SETTER_TRAITS_DECL JSONCONS_ALL_GETTER_SETTER_TRAITS +#define JSONCONS_TPL_ALL_GETTER_SETTER_TRAITS_DECL JSONCONS_TPL_ALL_GETTER_SETTER_TRAITS +#define JSONCONS_N_GETTER_SETTER_NAMED_TRAITS_DECL JSONCONS_N_GETTER_SETTER_NAMED_TRAITS +#define JSONCONS_TPL_N_GETTER_SETTER_NAMED_TRAITS_DECL JSONCONS_TPL_N_GETTER_SETTER_NAMED_TRAITS +#define JSONCONS_ALL_GETTER_SETTER_NAMED_TRAITS_DECL JSONCONS_ALL_GETTER_SETTER_NAMED_TRAITS +#define JSONCONS_TPL_ALL_GETTER_SETTER_NAMED_TRAITS_DECL JSONCONS_TPL_ALL_GETTER_SETTER_NAMED_TRAITS +#define JSONCONS_POLYMORPHIC_TRAITS_DECL JSONCONS_POLYMORPHIC_TRAITS +#define JSONCONS_NONDEFAULT_MEMBER_TRAITS_DECL JSONCONS_ALL_MEMBER_TRAITS +#define JSONCONS_TEMPLATE_STRICT_MEMBER_TRAITS_DECL JSONCONS_TPL_ALL_MEMBER_TRAITS + +#define JSONCONS_STRICT_MEMBER_TRAITS_NAMED_DECL JSONCONS_ALL_MEMBER_NAME_TRAITS +#define JSONCONS_STRICT_TEMPLATE_MEMBER_TRAITS_DECL JSONCONS_TPL_ALL_MEMBER_TRAITS +#define JSONCONS_STRICT_TEMPLATE_MEMBER_TRAITS_NAMED_DECL JSONCONS_TPL_ALL_MEMBER_NAME_TRAITS +#define JSONCONS_ENUM_TRAITS_NAMED_DECL JSONCONS_ENUM_NAME_TRAITS +#define JSONCONS_GETTER_CTOR_TRAITS_NAMED_DECL JSONCONS_ALL_GETTER_CTOR_NAME_TRAITS +#define JSONCONS_TEMPLATE_GETTER_CTOR_TRAITS_DECL JSONCONS_TPL_ALL_GETTER_CTOR_TRAITS +#define JSONCONS_TEMPLATE_GETTER_CTOR_TRAITS_NAMED_DECL JSONCONS_TPL_ALL_GETTER_CTOR_NAME_TRAITS +#define JSONCONS_GETTER_SETTER_TRAITS_NAMED_DECL JSONCONS_ALL_GETTER_SETTER_NAME_TRAITS +#define JSONCONS_STRICT_GETTER_SETTER_TRAITS_NAMED_DECL JSONCONS_ALL_GETTER_SETTER_NAME_TRAITS +#define JSONCONS_STRICT_TEMPLATE_GETTER_SETTER_TRAITS_NAMED_DECL JSONCONS_TPL_ALL_GETTER_SETTER_NAME_TRAITS +#define JSONCONS_STRICT_TPL_MEMBER_TRAITS_DECL JSONCONS_TPL_ALL_MEMBER_TRAITS +#define JSONCONS_STRICT_TPL_MEMBER_NAMED_TRAITS_DECL JSONCONS_TPL_ALL_MEMBER_NAME_TRAITS +#define JSONCONS_STRICT_TPL_GETTER_SETTER_NAMED_TRAITS_DECL JSONCONS_TPL_ALL_GETTER_SETTER_NAME_TRAITS + +#define JSONCONS_STRICT_MEMBER_TRAITS_DECL JSONCONS_ALL_MEMBER_TRAITS +#define JSONCONS_TPL_STRICT_MEMBER_TRAITS_DECL JSONCONS_TPL_ALL_MEMBER_TRAITS +#define JSONCONS_STRICT_MEMBER_NAMED_TRAITS_DECL JSONCONS_ALL_MEMBER_NAME_TRAITS +#define JSONCONS_TPL_STRICT_MEMBER_NAMED_TRAITS_DECL JSONCONS_ALL_STRICT_MEMBER_NAME_TRAITS +#define JSONCONS_STRICT_PROPERTY_TRAITS_DECL JSONCONS_ALL_GETTER_SETTER_TRAITS +#define JSONCONS_TPL_STRICT_PROPERTY_TRAITS_DECL JSONCONS_TPL_ALL_GETTER_SETTER_TRAITS +#define JSONCONS_STRICT_GETTER_SETTER_NAMED_TRAITS_DECL JSONCONS_ALL_GETTER_SETTER_NAME_TRAITS +#define JSONCONS_TPL_STRICT_GETTER_SETTER_NAMED_TRAITS_DECL JSONCONS_TPL_ALL_GETTER_SETTER_NAME_TRAITS +#define JSONCONS_GETTER_CTOR_TRAITS_DECL JSONCONS_ALL_GETTER_CTOR_TRAITS +#define JSONCONS_TPL_GETTER_CTOR_TRAITS_DECL JSONCONS_TPL_ALL_GETTER_CTOR_TRAITS +#define JSONCONS_GETTER_CTOR_NAMED_TRAITS_DECL JSONCONS_ALL_GETTER_CTOR_NAME_TRAITS +#define JSONCONS_TPL_GETTER_CTOR_NAMED_TRAITS_DECL JSONCONS_TPL_ALL_GETTER_CTOR_NAME_TRAITS +#define JSONCONS_N_PROPERTY_TRAITS_DECL JSONCONS_N_GETTER_SETTER_TRAITS +#define JSONCONS_ALL_PROPERTY_TRAITS_DECL JSONCONS_ALL_GETTER_SETTER_TRAITS +#define JSONCONS_TPL_N_PROPERTY_TRAITS_DECL JSONCONS_TPL_N_GETTER_SETTER_TRAITS +#define JSONCONS_TPL_ALL_PROPERTY_TRAITS_DECL JSONCONS_TPL_ALL_GETTER_SETTER_TRAITS + +#endif + +#endif diff --git a/include/jsoncons/json_type.hpp b/include/jsoncons/json_type.hpp new file mode 100644 index 0000000..f642d6b --- /dev/null +++ b/include/jsoncons/json_type.hpp @@ -0,0 +1,206 @@ +// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSON_TYPE_HPP +#define JSONCONS_JSON_TYPE_HPP + +#include +#include + +namespace jsoncons { + + enum class json_type : uint8_t + { + null_value, + bool_value, + int64_value, + uint64_value, + half_value, + double_value, + string_value, + byte_string_value, + array_value, + object_value + }; + + template + std::basic_ostream& operator<<(std::basic_ostream& os, json_type type) + { + static constexpr const CharT* null_value = JSONCONS_CSTRING_CONSTANT(CharT, "null"); + static constexpr const CharT* bool_value = JSONCONS_CSTRING_CONSTANT(CharT, "bool"); + static constexpr const CharT* int64_value = JSONCONS_CSTRING_CONSTANT(CharT, "int64"); + static constexpr const CharT* uint64_value = JSONCONS_CSTRING_CONSTANT(CharT, "uint64"); + static constexpr const CharT* half_value = JSONCONS_CSTRING_CONSTANT(CharT, "half"); + static constexpr const CharT* double_value = JSONCONS_CSTRING_CONSTANT(CharT, "double"); + static constexpr const CharT* string_value = JSONCONS_CSTRING_CONSTANT(CharT, "string"); + static constexpr const CharT* byte_string_value = JSONCONS_CSTRING_CONSTANT(CharT, "byte_string"); + static constexpr const CharT* array_value = JSONCONS_CSTRING_CONSTANT(CharT, "array"); + static constexpr const CharT* object_value = JSONCONS_CSTRING_CONSTANT(CharT, "object"); + + switch (type) + { + case json_type::null_value: + { + os << null_value; + break; + } + case json_type::bool_value: + { + os << bool_value; + break; + } + case json_type::int64_value: + { + os << int64_value; + break; + } + case json_type::uint64_value: + { + os << uint64_value; + break; + } + case json_type::half_value: + { + os << half_value; + break; + } + case json_type::double_value: + { + os << double_value; + break; + } + case json_type::string_value: + { + os << string_value; + break; + } + case json_type::byte_string_value: + { + os << byte_string_value; + break; + } + case json_type::array_value: + { + os << array_value; + break; + } + case json_type::object_value: + { + os << object_value; + break; + } + } + return os; + } + + enum class json_storage_kind : uint8_t + { + null_value = 0x00, + bool_value = 0x01, + int64_value = 0x02, + uint64_value = 0x03, + half_value = 0x04, + double_value = 0x05, + short_string_value = 0x06, + long_string_value = 0x07, + byte_string_value = 0x08, + array_value = 0x09, + empty_object_value = 0x0a, + object_value = 0x0b, + json_const_pointer = 0x0c + }; + + template + std::basic_ostream& operator<<(std::basic_ostream& os, json_storage_kind storage) + { + static constexpr const CharT* null_value = JSONCONS_CSTRING_CONSTANT(CharT, "null"); + static constexpr const CharT* bool_value = JSONCONS_CSTRING_CONSTANT(CharT, "bool"); + static constexpr const CharT* int64_value = JSONCONS_CSTRING_CONSTANT(CharT, "int64"); + static constexpr const CharT* uint64_value = JSONCONS_CSTRING_CONSTANT(CharT, "uint64"); + static constexpr const CharT* half_value = JSONCONS_CSTRING_CONSTANT(CharT, "half"); + static constexpr const CharT* double_value = JSONCONS_CSTRING_CONSTANT(CharT, "double"); + static constexpr const CharT* short_string_value = JSONCONS_CSTRING_CONSTANT(CharT, "short_string"); + static constexpr const CharT* long_string_value = JSONCONS_CSTRING_CONSTANT(CharT, "string"); + static constexpr const CharT* byte_string_value = JSONCONS_CSTRING_CONSTANT(CharT, "byte_string"); + static constexpr const CharT* array_value = JSONCONS_CSTRING_CONSTANT(CharT, "array"); + static constexpr const CharT* empty_object_value = JSONCONS_CSTRING_CONSTANT(CharT, "empty_object"); + static constexpr const CharT* object_value = JSONCONS_CSTRING_CONSTANT(CharT, "object"); + static constexpr const CharT* json_const_pointer = JSONCONS_CSTRING_CONSTANT(CharT, "json_const_pointer"); + + switch (storage) + { + case json_storage_kind::null_value: + { + os << null_value; + break; + } + case json_storage_kind::bool_value: + { + os << bool_value; + break; + } + case json_storage_kind::int64_value: + { + os << int64_value; + break; + } + case json_storage_kind::uint64_value: + { + os << uint64_value; + break; + } + case json_storage_kind::half_value: + { + os << half_value; + break; + } + case json_storage_kind::double_value: + { + os << double_value; + break; + } + case json_storage_kind::short_string_value: + { + os << short_string_value; + break; + } + case json_storage_kind::long_string_value: + { + os << long_string_value; + break; + } + case json_storage_kind::byte_string_value: + { + os << byte_string_value; + break; + } + case json_storage_kind::array_value: + { + os << array_value; + break; + } + case json_storage_kind::empty_object_value: + { + os << empty_object_value; + break; + } + case json_storage_kind::object_value: + { + os << object_value; + break; + } + case json_storage_kind::json_const_pointer: + { + os << json_const_pointer; + break; + } + } + return os; + } + +} // jsoncons + +#endif diff --git a/include/jsoncons/json_type_traits.hpp b/include/jsoncons/json_type_traits.hpp new file mode 100644 index 0000000..7ee26b2 --- /dev/null +++ b/include/jsoncons/json_type_traits.hpp @@ -0,0 +1,1829 @@ +// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSON_TYPE_TRAITS_HPP +#define JSONCONS_JSON_TYPE_TRAITS_HPP + +#include +#include +#include +#include +#include +#include +#include +#include +#include // std::swap +#include // std::numeric_limits +#include // std::enable_if +#include // std::iterator_traits, std::input_iterator_tag +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include // std::bitset +#include +#include + +#if defined(JSONCONS_HAS_STD_VARIANT) + #include +#endif + +namespace jsoncons { + + template + struct is_json_type_traits_declared : public std::false_type + {}; + + #if !defined(JSONCONS_NO_DEPRECATED) + template + using is_json_type_traits_impl = is_json_type_traits_declared; + #endif + + // json_type_traits + + template + struct unimplemented : std::false_type + {}; + + template + struct json_type_traits + { + using allocator_type = typename Json::allocator_type; + + static constexpr bool is_compatible = false; + + static constexpr bool is(const Json&) noexcept + { + return false; + } + + static T as(const Json&) + { + static_assert(unimplemented::value, "as not implemented"); + } + + static Json to_json(const T&, const allocator_type& = allocator_type()) + { + static_assert(unimplemented::value, "to_json not implemented"); + } + }; + +namespace detail { + +template +using +traits_can_convert_t = decltype(json_type_traits::can_convert(Json())); + +template +using +has_can_convert = type_traits::is_detected; + + template + struct invoke_can_convert + { + template + static + typename std::enable_if::value,bool>::type + can_convert(const Json& j) noexcept + { + return json_type_traits::can_convert(j); + } + template + static + typename std::enable_if::value,bool>::type + can_convert(const Json& j) noexcept + { + return json_type_traits::is(j); + } + }; + + // is_json_type_traits_unspecialized + template + struct is_json_type_traits_unspecialized : std::false_type {}; + + // is_json_type_traits_unspecialized + template + struct is_json_type_traits_unspecialized::is_compatible>::value>::type + > : std::true_type {}; + + // is_compatible_array_type + template + struct is_compatible_array_type : std::false_type {}; + + template + struct is_compatible_array_type::value && + type_traits::is_list_like::value && + !is_json_type_traits_unspecialized::value_type>::value + >::type> : std::true_type {}; + +} // namespace detail + + // is_json_type_traits_specialized + template + struct is_json_type_traits_specialized : std::false_type {}; + + template + struct is_json_type_traits_specialized::value + >::type> : std::true_type {}; + + template + struct json_type_traits::type*> + { + using char_type = typename Json::char_type; + using allocator_type = typename Json::allocator_type; + + static bool is(const Json& j) noexcept + { + return j.is_string(); + } + static const char_type* as(const Json& j) + { + return j.as_cstring(); + } + template + static Json to_json(const char_type* s, Args&&... args) + { + return Json(s, semantic_tag::none, std::forward(args)...); + } + }; + + template + struct json_type_traits::type*> + { + using char_type = typename Json::char_type; + using allocator_type = typename Json::allocator_type; + + static bool is(const Json& j) noexcept + { + return j.is_string(); + } + template + static Json to_json(const char_type* s, Args&&... args) + { + return Json(s, semantic_tag::none, std::forward(args)...); + } + }; + + // integer + + template + struct json_type_traits::value + >::type> + { + using allocator_type = typename Json::allocator_type; + + static bool is(const Json& j) noexcept + { + return j.template is_integer(); + } + static T as(const Json& j) + { + return j.template as_integer(); + } + + static Json to_json(T val, allocator_type alloc = allocator_type()) + { + return Json(val, semantic_tag::none, alloc); + } + }; + + template + struct json_type_traits::value + >::type> + { + using allocator_type = typename Json::allocator_type; + + static bool is(const Json& j) noexcept + { + return j.is_double(); + } + static T as(const Json& j) + { + return static_cast(j.as_double()); + } + static Json to_json(T val, allocator_type = allocator_type()) + { + return Json(val, semantic_tag::none); + } + }; + + template + struct json_type_traits + { + using json_object = typename Json::object; + using allocator_type = typename Json::allocator_type; + + static bool is(const Json& j) noexcept + { + return j.is_object(); + } + static Json to_json(const json_object& o, const allocator_type& = allocator_type()) + { + return Json(o,semantic_tag::none); + } + }; + + template + struct json_type_traits + { + using json_array = typename Json::array; + using allocator_type = typename Json::allocator_type; + + static bool is(const Json& j) noexcept + { + return j.is_array(); + } + static Json to_json(const json_array& a, const allocator_type& = allocator_type()) + { + return Json(a, semantic_tag::none); + } + }; + + template + struct json_type_traits + { + using allocator_type = typename Json::allocator_type; + + static bool is(const Json&) noexcept + { + return true; + } + static Json as(Json j) + { + return j; + } + static Json to_json(const Json& val, allocator_type = allocator_type()) + { + return val; + } + }; + + template + struct json_type_traits + { + using allocator_type = typename Json::allocator_type; + + static bool is(const Json& j) noexcept + { + return j.is_null(); + } + static typename jsoncons::null_type as(const Json& j) + { + if (!j.is_null()) + { + JSONCONS_THROW(conv_error(conv_errc::not_jsoncons_null_type)); + } + return jsoncons::null_type(); + } + static Json to_json(jsoncons::null_type, allocator_type = allocator_type()) + { + return Json::null(); + } + }; + + template + struct json_type_traits + { + using allocator_type = typename Json::allocator_type; + + static bool is(const Json& j) noexcept + { + return j.is_bool(); + } + static bool as(const Json& j) + { + return j.as_bool(); + } + static Json to_json(bool val, allocator_type = allocator_type()) + { + return Json(val, semantic_tag::none); + } + }; + + template + struct json_type_traits::const_reference>::value, + std::vector::const_reference, + void>::type>::value>::type> + { + using allocator_type = typename Json::allocator_type; + + static bool is(const Json& j) noexcept + { + return j.is_bool(); + } + static bool as(const Json& j) + { + return j.as_bool(); + } + static Json to_json(bool val, allocator_type = allocator_type()) + { + return Json(val, semantic_tag::none); + } + }; + + template + struct json_type_traits::reference> + { + using allocator_type = typename Json::allocator_type; + + static bool is(const Json& j) noexcept + { + return j.is_bool(); + } + static bool as(const Json& j) + { + return j.as_bool(); + } + static Json to_json(bool val, allocator_type = allocator_type()) + { + return Json(val, semantic_tag::none); + } + }; + + template + struct json_type_traits::value && + type_traits::is_basic_string::value && + std::is_same::value>::type> + { + using allocator_type = typename Json::allocator_type; + + static bool is(const Json& j) noexcept + { + return j.is_string(); + } + + static T as(const Json& j) + { + return T(j.as_string()); + } + + static Json to_json(const T& val) + { + return Json(val, semantic_tag::none); + } + + static Json to_json(const T& val, const allocator_type& alloc) + { + return Json(val, semantic_tag::none, alloc); + } + }; + + template + struct json_type_traits::value && + type_traits::is_basic_string::value && + !std::is_same::value>::type> + { + using char_type = typename Json::char_type; + using allocator_type = typename Json::allocator_type; + + static bool is(const Json& j) noexcept + { + return j.is_string(); + } + + static T as(const Json& j) + { + auto s = j.as_string(); + T val; + unicode_traits::convert(s.data(), s.size(), val); + return val; + } + + static Json to_json(const T& val) + { + std::basic_string s; + unicode_traits::convert(val.data(), val.size(), s); + + return Json(s, semantic_tag::none); + } + + static Json to_json(const T& val, const allocator_type& alloc) + { + std::basic_string s; + unicode_traits::convert(val.data(), val.size(), s); + return Json(s, semantic_tag::none, alloc); + } + }; + + template + struct json_type_traits::value && + type_traits::is_basic_string_view::value && + std::is_same::value>::type> + { + using allocator_type = typename Json::allocator_type; + + static bool is(const Json& j) noexcept + { + return j.is_string_view(); + } + + static T as(const Json& j) + { + return T(j.as_string_view().data(),j.as_string_view().size()); + } + + static Json to_json(const T& val) + { + return Json(val, semantic_tag::none); + } + + static Json to_json(const T& val, const allocator_type& alloc) + { + return Json(val, semantic_tag::none, alloc); + } + }; + + // array back insertable + + template + struct json_type_traits::value && + jsoncons::detail::is_compatible_array_type::value && + type_traits::is_back_insertable::value + >::type> + { + typedef typename std::iterator_traits::value_type value_type; + using allocator_type = typename Json::allocator_type; + + static bool is(const Json& j) noexcept + { + bool result = j.is_array(); + if (result) + { + for (auto e : j.array_range()) + { + if (!e.template is()) + { + result = false; + break; + } + } + } + return result; + } + + // array back insertable non-byte container + + template + static typename std::enable_if::value,Container>::type + as(const Json& j) + { + if (j.is_array()) + { + T result; + visit_reserve_(typename std::integral_constant::value>::type(),result,j.size()); + for (const auto& item : j.array_range()) + { + result.push_back(item.template as()); + } + + return result; + } + else + { + JSONCONS_THROW(conv_error(conv_errc::not_vector)); + } + } + + // array back insertable byte container + + template + static typename std::enable_if::value,Container>::type + as(const Json& j) + { + converter convert; + std::error_code ec; + if (j.is_array()) + { + T result; + visit_reserve_(typename std::integral_constant::value>::type(),result,j.size()); + for (const auto& item : j.array_range()) + { + result.push_back(item.template as()); + } + + return result; + } + else if (j.is_byte_string_view()) + { + auto v = convert.from(j.as_byte_string_view(),j.tag(), ec); + if (ec) + { + JSONCONS_THROW(conv_error(ec)); + } + return v; + } + else if (j.is_string()) + { + auto v = convert.from(j.as_string_view(),j.tag(), ec); + if (ec) + { + JSONCONS_THROW(conv_error(ec)); + } + return v; + } + else + { + JSONCONS_THROW(conv_error(conv_errc::not_vector)); + } + } + + template + static typename std::enable_if::value,Json>::type + to_json(const T& val) + { + Json j(json_array_arg); + auto first = std::begin(val); + auto last = std::end(val); + std::size_t size = std::distance(first,last); + j.reserve(size); + for (auto it = first; it != last; ++it) + { + j.push_back(*it); + } + return j; + } + + template + static typename std::enable_if::value,Json>::type + to_json(const T& val, const allocator_type& alloc) + { + Json j(json_array_arg, alloc); + auto first = std::begin(val); + auto last = std::end(val); + std::size_t size = std::distance(first, last); + j.reserve(size); + for (auto it = first; it != last; ++it) + { + j.push_back(*it); + } + return j; + } + + template + static typename std::enable_if::value,Json>::type + to_json(const T& val) + { + Json j(byte_string_arg, val); + return j; + } + + template + static typename std::enable_if::value,Json>::type + to_json(const T& val, const allocator_type& alloc) + { + Json j(byte_string_arg, val, semantic_tag::none, alloc); + return j; + } + + static void visit_reserve_(std::true_type, T& v, std::size_t size) + { + v.reserve(size); + } + + static void visit_reserve_(std::false_type, T&, std::size_t) + { + } + }; + + // array, not back insertable but insertable + + template + struct json_type_traits::value && + jsoncons::detail::is_compatible_array_type::value && + !type_traits::is_back_insertable::value && + type_traits::is_insertable::value>::type> + { + typedef typename std::iterator_traits::value_type value_type; + using allocator_type = typename Json::allocator_type; + + static bool is(const Json& j) noexcept + { + bool result = j.is_array(); + if (result) + { + for (auto e : j.array_range()) + { + if (!e.template is()) + { + result = false; + break; + } + } + } + return result; + } + + static T as(const Json& j) + { + if (j.is_array()) + { + T result; + for (const auto& item : j.array_range()) + { + result.insert(item.template as()); + } + + return result; + } + else + { + JSONCONS_THROW(conv_error(conv_errc::not_vector)); + } + } + + static Json to_json(const T& val) + { + Json j(json_array_arg); + auto first = std::begin(val); + auto last = std::end(val); + std::size_t size = std::distance(first,last); + j.reserve(size); + for (auto it = first; it != last; ++it) + { + j.push_back(*it); + } + return j; + } + + static Json to_json(const T& val, const allocator_type& alloc) + { + Json j(json_array_arg, alloc); + auto first = std::begin(val); + auto last = std::end(val); + std::size_t size = std::distance(first, last); + j.reserve(size); + for (auto it = first; it != last; ++it) + { + j.push_back(*it); + } + return j; + } + }; + + // array not back insertable or insertable, but front insertable + + template + struct json_type_traits::value && + jsoncons::detail::is_compatible_array_type::value && + !type_traits::is_back_insertable::value && + !type_traits::is_insertable::value && + type_traits::is_front_insertable::value>::type> + { + typedef typename std::iterator_traits::value_type value_type; + using allocator_type = typename Json::allocator_type; + + static bool is(const Json& j) noexcept + { + bool result = j.is_array(); + if (result) + { + for (auto e : j.array_range()) + { + if (!e.template is()) + { + result = false; + break; + } + } + } + return result; + } + + static T as(const Json& j) + { + if (j.is_array()) + { + T result; + + auto it = j.array_range().rbegin(); + auto end = j.array_range().rend(); + for (; it != end; ++it) + { + result.push_front((*it).template as()); + } + + return result; + } + else + { + JSONCONS_THROW(conv_error(conv_errc::not_vector)); + } + } + + static Json to_json(const T& val) + { + Json j(json_array_arg); + auto first = std::begin(val); + auto last = std::end(val); + std::size_t size = std::distance(first,last); + j.reserve(size); + for (auto it = first; it != last; ++it) + { + j.push_back(*it); + } + return j; + } + + static Json to_json(const T& val, const allocator_type& alloc) + { + Json j(json_array_arg, alloc); + auto first = std::begin(val); + auto last = std::end(val); + std::size_t size = std::distance(first, last); + j.reserve(size); + for (auto it = first; it != last; ++it) + { + j.push_back(*it); + } + return j; + } + }; + + // std::array + + template + struct json_type_traits> + { + using allocator_type = typename Json::allocator_type; + + using value_type = E; + + static bool is(const Json& j) noexcept + { + bool result = j.is_array() && j.size() == N; + if (result) + { + for (auto e : j.array_range()) + { + if (!e.template is()) + { + result = false; + break; + } + } + } + return result; + } + + static std::array as(const Json& j) + { + std::array buff; + if (j.size() != N) + { + JSONCONS_THROW(conv_error(conv_errc::not_array)); + } + for (std::size_t i = 0; i < N; i++) + { + buff[i] = j[i].template as(); + } + return buff; + } + + static Json to_json(const std::array& val) + { + Json j(json_array_arg); + j.reserve(N); + for (auto it = val.begin(); it != val.end(); ++it) + { + j.push_back(*it); + } + return j; + } + + static Json to_json(const std::array& val, + const allocator_type& alloc) + { + Json j(json_array_arg, alloc); + j.reserve(N); + for (auto it = val.begin(); it != val.end(); ++it) + { + j.push_back(*it); + } + return j; + } + }; + + // map like + template + struct json_type_traits::value && + type_traits::is_map_like::value && + type_traits::is_constructible_from_const_pointer_and_size::value && + is_json_type_traits_specialized::value>::type + > + { + using mapped_type = typename T::mapped_type; + using value_type = typename T::value_type; + using key_type = typename T::key_type; + using allocator_type = typename Json::allocator_type; + + static bool is(const Json& j) noexcept + { + bool result = j.is_object(); + for (auto member : j.object_range()) + { + if (!member.value().template is()) + { + result = false; + } + } + return result; + } + + static T as(const Json& j) + { + if (!j.is_object()) + { + JSONCONS_THROW(conv_error(conv_errc::not_map)); + } + T result; + for (const auto& item : j.object_range()) + { + result.emplace(key_type(item.key().data(),item.key().size()), item.value().template as()); + } + + return result; + } + + static Json to_json(const T& val) + { + Json j(json_object_arg, val.begin(), val.end()); + return j; + } + + static Json to_json(const T& val, const allocator_type& alloc) + { + Json j(json_object_arg, val.begin(), val.end(), alloc); + return j; + } + }; + + template + struct json_type_traits::value && + type_traits::is_map_like::value && + !type_traits::is_constructible_from_const_pointer_and_size::value && + is_json_type_traits_specialized::value && + is_json_type_traits_specialized::value>::type + > + { + using mapped_type = typename T::mapped_type; + using value_type = typename T::value_type; + using key_type = typename T::key_type; + using allocator_type = typename Json::allocator_type; + + static bool is(const Json& val) noexcept + { + if (!val.is_object()) + return false; + for (const auto& item : val.object_range()) + { + Json j(item.key()); + if (!j.template is()) + { + return false; + } + if (!item.value().template is()) + { + return false; + } + } + return true; + } + + static T as(const Json& val) + { + T result; + for (const auto& item : val.object_range()) + { + Json j(item.key()); + auto key = json_type_traits::as(j); + result.emplace(std::move(key), item.value().template as()); + } + + return result; + } + + static Json to_json(const T& val) + { + Json j(json_object_arg); + j.reserve(val.size()); + for (const auto& item : val) + { + auto temp = json_type_traits::to_json(item.first); + typename Json::key_type key; + temp.dump(key); + j.try_emplace(std::move(key), item.second); + } + return j; + } + + static Json to_json(const T& val, const allocator_type& alloc) + { + Json j(json_object_arg, semantic_tag::none, alloc); + j.reserve(val.size()); + for (const auto& item : val) + { + auto temp = json_type_traits::to_json(item.first, alloc); + typename Json::key_type key(alloc); + temp.dump(key); + j.try_emplace(std::move(key), item.second, alloc); + } + return j; + } + }; + + namespace tuple_detail + { + template + struct json_tuple_helper + { + using element_type = typename std::tuple_element::type; + using next = json_tuple_helper; + + static bool is(const Json& j) noexcept + { + if (j[Size-Pos].template is()) + { + return next::is(j); + } + else + { + return false; + } + } + + static void as(Tuple& tuple, const Json& j) + { + std::get(tuple) = j[Size-Pos].template as(); + next::as(tuple, j); + } + + static void to_json(const Tuple& tuple, Json& j) + { + j.push_back(json_type_traits::to_json(std::get(tuple))); + next::to_json(tuple, j); + } + }; + + template + struct json_tuple_helper<0, Size, Json, Tuple> + { + static bool is(const Json&) noexcept + { + return true; + } + + static void as(Tuple&, const Json&) + { + } + + static void to_json(const Tuple&, Json&) + { + } + }; + } // namespace detail + + template + struct json_type_traits> + { + private: + using helper = tuple_detail::json_tuple_helper>; + + public: + using allocator_type = typename Json::allocator_type; + + static bool is(const Json& j) noexcept + { + return helper::is(j); + } + + static std::tuple as(const Json& j) + { + std::tuple buff; + helper::as(buff, j); + return buff; + } + + static Json to_json(const std::tuple& val) + { + Json j(json_array_arg); + j.reserve(sizeof...(E)); + helper::to_json(val, j); + return j; + } + + static Json to_json(const std::tuple& val, + const allocator_type& alloc) + { + Json j(json_array_arg, alloc); + j.reserve(sizeof...(E)); + helper::to_json(val, j); + return j; + } + }; + + template + struct json_type_traits> + { + public: + using allocator_type = typename Json::allocator_type; + + static bool is(const Json& j) noexcept + { + return j.is_array() && j.size() == 2; + } + + static std::pair as(const Json& j) + { + return std::make_pair(j[0].template as(),j[1].template as()); + } + + static Json to_json(const std::pair& val) + { + Json j(json_array_arg); + j.reserve(2); + j.push_back(val.first); + j.push_back(val.second); + return j; + } + + static Json to_json(const std::pair& val, const allocator_type& alloc) + { + Json j(json_array_arg, alloc); + j.reserve(2); + j.push_back(val.first); + j.push_back(val.second); + return j; + } + }; + + template + struct json_type_traits::value>::type> + { + public: + using allocator_type = typename Json::allocator_type; + + static bool is(const Json& j) noexcept + { + return j.is_byte_string(); + } + + static T as(const Json& j) + { + return j.template as_byte_string(); + } + + static Json to_json(const T& val, + const allocator_type& alloc = allocator_type()) + { + return Json(byte_string_arg, val, semantic_tag::none, alloc); + } + }; + + template + struct json_type_traits, + typename std::enable_if>::value && + !std::is_polymorphic::value + >::type> + { + static bool is(const Json& j) noexcept + { + return j.is_null() || j.template is(); + } + + static std::shared_ptr as(const Json& j) + { + return j.is_null() ? std::shared_ptr(nullptr) : std::make_shared(j.template as()); + } + + static Json to_json(const std::shared_ptr& ptr) + { + if (ptr.get() != nullptr) + { + Json j(*ptr); + return j; + } + else + { + return Json::null(); + } + } + }; + + template + struct json_type_traits, + typename std::enable_if>::value && + !std::is_polymorphic::value + >::type> + { + static bool is(const Json& j) noexcept + { + return j.is_null() || j.template is(); + } + + static std::unique_ptr as(const Json& j) + { + return j.is_null() ? std::unique_ptr(nullptr) : jsoncons::make_unique(j.template as()); + } + + static Json to_json(const std::unique_ptr& ptr) + { + if (ptr.get() != nullptr) + { + Json j(*ptr); + return j; + } + else + { + return Json::null(); + } + } + }; + + template + struct json_type_traits, + typename std::enable_if>::value>::type> + { + public: + static bool is(const Json& j) noexcept + { + return j.is_null() || j.template is(); + } + + static jsoncons::optional as(const Json& j) + { + return j.is_null() ? jsoncons::optional() : jsoncons::optional(j.template as()); + } + + static Json to_json(const jsoncons::optional& val) + { + return val.has_value() ? Json(*val) : Json::null(); + } + }; + + template + struct json_type_traits + { + using allocator_type = typename Json::allocator_type; + + public: + static bool is(const Json& j) noexcept + { + return j.is_byte_string_view(); + } + + static byte_string_view as(const Json& j) + { + return j.as_byte_string_view(); + } + + static Json to_json(const byte_string_view& val, const allocator_type& alloc = allocator_type()) + { + return Json(byte_string_arg, val, semantic_tag::none, alloc); + } + }; + + // basic_bigint + + template + struct json_type_traits> + { + public: + using char_type = typename Json::char_type; + + static bool is(const Json& j) noexcept + { + switch (j.type()) + { + case json_type::string_value: + return jsoncons::detail::is_base10(j.as_string_view().data(), j.as_string_view().length()); + case json_type::int64_value: + case json_type::uint64_value: + return true; + default: + return false; + } + } + + static basic_bigint as(const Json& j) + { + switch (j.type()) + { + case json_type::string_value: + if (!jsoncons::detail::is_base10(j.as_string_view().data(), j.as_string_view().length())) + { + JSONCONS_THROW(conv_error(conv_errc::not_bigint)); + } + return basic_bigint::from_string(j.as_string_view().data(), j.as_string_view().length()); + case json_type::half_value: + case json_type::double_value: + return basic_bigint(j.template as()); + case json_type::int64_value: + return basic_bigint(j.template as()); + case json_type::uint64_value: + return basic_bigint(j.template as()); + default: + JSONCONS_THROW(conv_error(conv_errc::not_bigint)); + } + } + + static Json to_json(const basic_bigint& val) + { + std::basic_string s; + val.write_string(s); + return Json(s,semantic_tag::bigint); + } + }; + + // std::valarray + + template + struct json_type_traits> + { + using allocator_type = typename Json::allocator_type; + + static bool is(const Json& j) noexcept + { + bool result = j.is_array(); + if (result) + { + for (auto e : j.array_range()) + { + if (!e.template is()) + { + result = false; + break; + } + } + } + return result; + } + + static std::valarray as(const Json& j) + { + if (j.is_array()) + { + std::valarray v(j.size()); + for (std::size_t i = 0; i < j.size(); ++i) + { + v[i] = j[i].template as(); + } + return v; + } + else + { + JSONCONS_THROW(conv_error(conv_errc::not_array)); + } + } + + static Json to_json(const std::valarray& val) + { + Json j(json_array_arg); + auto first = std::begin(val); + auto last = std::end(val); + std::size_t size = std::distance(first,last); + j.reserve(size); + for (auto it = first; it != last; ++it) + { + j.push_back(*it); + } + return j; + } + + static Json to_json(const std::valarray& val, const allocator_type& alloc) + { + Json j(json_array_arg, alloc); + auto first = std::begin(val); + auto last = std::end(val); + std::size_t size = std::distance(first,last); + j.reserve(size); + for (auto it = first; it != last; ++it) + { + j.push_back(*it); + } + return j; + } + }; + +#if defined(JSONCONS_HAS_STD_VARIANT) + +namespace variant_detail +{ + template + typename std::enable_if, bool>::type + is_variant(const Json& /*j*/) + { + return false; + } + + template + typename std::enable_if, bool>::type + is_variant(const Json& j) + { + if (j.template is()) + { + return true; + } + else + { + return is_variant(j); + } + } + + template + typename std::enable_if, Variant>::type + as_variant(const Json& /*j*/) + { + JSONCONS_THROW(conv_error(conv_errc::not_variant)); + } + + template + typename std::enable_if, Variant>::type + as_variant(const Json& j) + { + if (j.template is()) + { + Variant var(j.template as()); + return var; + } + else + { + return as_variant(j); + } + } + + template + struct variant_to_json_visitor + { + Json& j_; + + variant_to_json_visitor(Json& j) : j_(j) {} + + template + void operator()(const T& value) const + { + j_ = value; + } + }; + +} // namespace variant_detail + + template + struct json_type_traits> + { + public: + using variant_type = typename std::variant; + using allocator_type = typename Json::allocator_type; + + static bool is(const Json& j) noexcept + { + return variant_detail::is_variant<0,Json,variant_type, VariantTypes...>(j); + } + + static std::variant as(const Json& j) + { + return variant_detail::as_variant<0,Json,variant_type, VariantTypes...>(j); + } + + static Json to_json(const std::variant& var) + { + Json j(json_array_arg); + variant_detail::variant_to_json_visitor visitor(j); + std::visit(visitor, var); + return j; + } + + static Json to_json(const std::variant& var, + const allocator_type& alloc) + { + Json j(json_array_arg, alloc); + variant_detail::variant_to_json_visitor visitor(j); + std::visit(visitor, var); + return j; + } + }; +#endif + + // std::chrono::duration + template + struct json_type_traits> + { + using duration_type = std::chrono::duration; + + using allocator_type = typename Json::allocator_type; + + static constexpr int64_t nanos_in_milli = 1000000; + static constexpr int64_t nanos_in_second = 1000000000; + static constexpr int64_t millis_in_second = 1000; + + static bool is(const Json& j) noexcept + { + return (j.tag() == semantic_tag::epoch_second || j.tag() == semantic_tag::epoch_milli || j.tag() == semantic_tag::epoch_nano); + } + + static duration_type as(const Json& j) + { + return from_json_(j); + } + + static Json to_json(const duration_type& val, allocator_type = allocator_type()) + { + return to_json_(val); + } + + template + static + typename std::enable_if>::value, duration_type>::type + from_json_(const Json& j) + { + if (j.is_int64() || j.is_uint64() || j.is_double()) + { + auto count = j.template as(); + switch (j.tag()) + { + case semantic_tag::epoch_second: + return duration_type(count); + case semantic_tag::epoch_milli: + return duration_type(count == 0 ? 0 : count/millis_in_second); + case semantic_tag::epoch_nano: + return duration_type(count == 0 ? 0 : count/nanos_in_second); + default: + return duration_type(count); + } + } + else if (j.is_string()) + { + switch (j.tag()) + { + case semantic_tag::epoch_second: + { + auto count = j.template as(); + return duration_type(count); + } + case semantic_tag::epoch_milli: + { + auto sv = j.as_string_view(); + bigint n = bigint::from_string(sv.data(), sv.length()); + if (n != 0) + { + n = n / millis_in_second; + } + return duration_type(static_cast(n)); + } + case semantic_tag::epoch_nano: + { + auto sv = j.as_string_view(); + bigint n = bigint::from_string(sv.data(), sv.length()); + if (n != 0) + { + n = n / nanos_in_second; + } + return duration_type(static_cast(n)); + } + default: + { + auto count = j.template as(); + return duration_type(count); + } + } + } + else + { + return duration_type(); + } + } + + template + static + typename std::enable_if::value, duration_type>::type + from_json_(const Json& j) + { + if (j.is_int64() || j.is_uint64()) + { + auto count = j.template as(); + switch (j.tag()) + { + case semantic_tag::epoch_second: + return duration_type(count*millis_in_second); + case semantic_tag::epoch_milli: + return duration_type(count); + case semantic_tag::epoch_nano: + return duration_type(count == 0 ? 0 : count/nanos_in_milli); + default: + return duration_type(count); + } + } + else if (j.is_double()) + { + auto count = j.template as(); + switch (j.tag()) + { + case semantic_tag::epoch_second: + return duration_type(static_cast(count * millis_in_second)); + case semantic_tag::epoch_milli: + return duration_type(static_cast(count)); + case semantic_tag::epoch_nano: + return duration_type(count == 0 ? 0 : static_cast(count / nanos_in_milli)); + default: + return duration_type(static_cast(count)); + } + } + else if (j.is_string()) + { + switch (j.tag()) + { + case semantic_tag::epoch_second: + { + auto count = j.template as(); + return duration_type(count*millis_in_second); + } + case semantic_tag::epoch_milli: + { + auto sv = j.as_string_view(); + Rep n{0}; + auto result = jsoncons::detail::to_integer_decimal(sv.data(), sv.size(), n); + if (!result) + { + return duration_type(); + } + return duration_type(n); + } + case semantic_tag::epoch_nano: + { + auto sv = j.as_string_view(); + bigint n = bigint::from_string(sv.data(), sv.length()); + if (n != 0) + { + n = n / nanos_in_milli; + } + return duration_type(static_cast(n)); + } + default: + { + auto count = j.template as(); + return duration_type(count); + } + } + } + else + { + return duration_type(); + } + } + + template + static + typename std::enable_if::value, duration_type>::type + from_json_(const Json& j) + { + if (j.is_int64() || j.is_uint64() || j.is_double()) + { + auto count = j.template as(); + switch (j.tag()) + { + case semantic_tag::epoch_second: + return duration_type(count*nanos_in_second); + case semantic_tag::epoch_milli: + return duration_type(count*nanos_in_milli); + case semantic_tag::epoch_nano: + return duration_type(count); + default: + return duration_type(count); + } + } + else if (j.is_double()) + { + auto count = j.template as(); + switch (j.tag()) + { + case semantic_tag::epoch_second: + return duration_type(static_cast(count * nanos_in_second)); + case semantic_tag::epoch_milli: + return duration_type(static_cast(count * nanos_in_milli)); + case semantic_tag::epoch_nano: + return duration_type(static_cast(count)); + default: + return duration_type(static_cast(count)); + } + } + else if (j.is_string()) + { + auto count = j.template as(); + switch (j.tag()) + { + case semantic_tag::epoch_second: + return duration_type(count*nanos_in_second); + case semantic_tag::epoch_milli: + return duration_type(count*nanos_in_milli); + case semantic_tag::epoch_nano: + return duration_type(count); + default: + return duration_type(count); + } + } + else + { + return duration_type(); + } + } + + template + static + typename std::enable_if>::value,Json>::type + to_json_(const duration_type& val) + { + return Json(val.count(), semantic_tag::epoch_second); + } + + template + static + typename std::enable_if::value,Json>::type + to_json_(const duration_type& val) + { + return Json(val.count(), semantic_tag::epoch_milli); + } + + template + static + typename std::enable_if::value,Json>::type + to_json_(const duration_type& val) + { + return Json(val.count(), semantic_tag::epoch_nano); + } + }; + + // std::nullptr_t + template + struct json_type_traits + { + using allocator_type = typename Json::allocator_type; + + static bool is(const Json& j) noexcept + { + return j.is_null(); + } + + static std::nullptr_t as(const Json& j) + { + if (!j.is_null()) + { + JSONCONS_THROW(conv_error(conv_errc::not_nullptr)); + } + return nullptr; + } + + static Json to_json(const std::nullptr_t&, allocator_type = allocator_type()) + { + return Json::null(); + } + }; + + // std::bitset + + struct null_back_insertable_byte_container + { + using value_type = uint8_t; + + void push_back(value_type) + { + } + }; + + template + struct json_type_traits> + { + using allocator_type = typename Json::allocator_type; + + static bool is(const Json& j) noexcept + { + if (j.is_byte_string()) + { + return true; + } + else if (j.is_string()) + { + jsoncons::string_view sv = j.as_string_view(); + null_back_insertable_byte_container cont; + auto result = decode_base16(sv.begin(), sv.end(), cont); + return result.ec == conv_errc::success ? true : false; + } + return false; + } + + static std::bitset as(const Json& j) + { + if (j.template is()) + { + auto bits = j.template as(); + std::bitset bs = static_cast(bits); + return bs; + } + else if (j.is_byte_string() || j.is_string()) + { + std::bitset bs; + std::vector bits; + if (j.is_byte_string()) + { + bits = j.template as>(); + } + else + { + jsoncons::string_view sv = j.as_string_view(); + auto result = decode_base16(sv.begin(), sv.end(), bits); + if (result.ec != conv_errc::success) + { + JSONCONS_THROW(conv_error(conv_errc::not_bitset)); + } + } + std::uint8_t byte = 0; + std::uint8_t mask = 0; + + std::size_t pos = 0; + for (std::size_t i = 0; i < N; ++i) + { + if (mask == 0) + { + if (pos >= bits.size()) + { + JSONCONS_THROW(conv_error(conv_errc::not_bitset)); + } + byte = bits.at(pos++); + mask = 0x80; + } + + if (byte & mask) + { + bs[i] = 1; + } + + mask = static_cast(mask >> 1); + } + return bs; + } + else + { + JSONCONS_THROW(conv_error(conv_errc::not_bitset)); + } + } + + static Json to_json(const std::bitset& val, + const allocator_type& alloc = allocator_type()) + { + std::vector bits; + + uint8_t byte = 0; + uint8_t mask = 0x80; + + for (std::size_t i = 0; i < N; ++i) + { + if (val[i]) + { + byte |= mask; + } + + mask = static_cast(mask >> 1); + + if (mask == 0) + { + bits.push_back(byte); + byte = 0; + mask = 0x80; + } + } + + // Encode remainder + if (mask != 0x80) + { + bits.push_back(byte); + } + + Json j(byte_string_arg, bits, semantic_tag::base16, alloc); + return j; + } + }; + +} // jsoncons + +#endif diff --git a/include/jsoncons/json_visitor.hpp b/include/jsoncons/json_visitor.hpp new file mode 100644 index 0000000..8be5900 --- /dev/null +++ b/include/jsoncons/json_visitor.hpp @@ -0,0 +1,1560 @@ +// Copyright 2018 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSON_VISITOR_HPP +#define JSONCONS_JSON_VISITOR_HPP + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +namespace jsoncons { + + template + class basic_json_visitor + { + public: + using char_type = CharT; + using char_traits_type = std::char_traits; + + using string_view_type = jsoncons::basic_string_view; + + basic_json_visitor(basic_json_visitor&&) = default; + + basic_json_visitor& operator=(basic_json_visitor&&) = default; + + basic_json_visitor() = default; + + virtual ~basic_json_visitor() noexcept = default; + + void flush() + { + visit_flush(); + } + + bool begin_object(semantic_tag tag=semantic_tag::none, + const ser_context& context=ser_context()) + { + std::error_code ec; + bool more = visit_begin_object(tag, context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + bool begin_object(std::size_t length, + semantic_tag tag=semantic_tag::none, + const ser_context& context = ser_context()) + { + std::error_code ec; + bool more = visit_begin_object(length, tag, context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + bool end_object(const ser_context& context = ser_context()) + { + std::error_code ec; + bool more = visit_end_object(context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + bool begin_array(semantic_tag tag=semantic_tag::none, + const ser_context& context=ser_context()) + { + std::error_code ec; + bool more = visit_begin_array(tag, context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + bool begin_array(std::size_t length, + semantic_tag tag=semantic_tag::none, + const ser_context& context=ser_context()) + { + std::error_code ec; + bool more = visit_begin_array(length, tag, context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + bool end_array(const ser_context& context=ser_context()) + { + std::error_code ec; + bool more = visit_end_array(context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + bool key(const string_view_type& name, const ser_context& context=ser_context()) + { + std::error_code ec; + bool more = visit_key(name, context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + bool null_value(semantic_tag tag = semantic_tag::none, + const ser_context& context=ser_context()) + { + std::error_code ec; + bool more = visit_null(tag, context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + bool bool_value(bool value, + semantic_tag tag = semantic_tag::none, + const ser_context& context=ser_context()) + { + std::error_code ec; + bool more = visit_bool(value, tag, context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + bool string_value(const string_view_type& value, + semantic_tag tag = semantic_tag::none, + const ser_context& context=ser_context()) + { + std::error_code ec; + bool more = visit_string(value, tag, context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + template + bool byte_string_value(const Source& b, + semantic_tag tag=semantic_tag::none, + const ser_context& context=ser_context(), + typename std::enable_if::value,int>::type = 0) + { + std::error_code ec; + bool more = visit_byte_string(byte_string_view(reinterpret_cast(b.data()),b.size()), tag, context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + template + bool byte_string_value(const Source& b, + uint64_t ext_tag, + const ser_context& context=ser_context(), + typename std::enable_if::value,int>::type = 0) + { + std::error_code ec; + bool more = visit_byte_string(byte_string_view(reinterpret_cast(b.data()),b.size()), ext_tag, context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + bool uint64_value(uint64_t value, + semantic_tag tag = semantic_tag::none, + const ser_context& context=ser_context()) + { + std::error_code ec; + bool more = visit_uint64(value, tag, context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + bool int64_value(int64_t value, + semantic_tag tag = semantic_tag::none, + const ser_context& context=ser_context()) + { + std::error_code ec; + bool more = visit_int64(value, tag, context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + bool half_value(uint16_t value, + semantic_tag tag = semantic_tag::none, + const ser_context& context=ser_context()) + { + std::error_code ec; + bool more = visit_half(value, tag, context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + bool double_value(double value, + semantic_tag tag = semantic_tag::none, + const ser_context& context=ser_context()) + { + std::error_code ec; + bool more = visit_double(value, tag, context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + bool begin_object(semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + return visit_begin_object(tag, context, ec); + } + + bool begin_object(std::size_t length, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + return visit_begin_object(length, tag, context, ec); + } + + bool end_object(const ser_context& context, std::error_code& ec) + { + return visit_end_object(context, ec); + } + + bool begin_array(semantic_tag tag, const ser_context& context, std::error_code& ec) + { + return visit_begin_array(tag, context, ec); + } + + bool begin_array(std::size_t length, semantic_tag tag, const ser_context& context, std::error_code& ec) + { + return visit_begin_array(length, tag, context, ec); + } + + bool end_array(const ser_context& context, std::error_code& ec) + { + return visit_end_array(context, ec); + } + + bool key(const string_view_type& name, const ser_context& context, std::error_code& ec) + { + return visit_key(name, context, ec); + } + + bool null_value(semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + return visit_null(tag, context, ec); + } + + bool bool_value(bool value, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + return visit_bool(value, tag, context, ec); + } + + bool string_value(const string_view_type& value, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + return visit_string(value, tag, context, ec); + } + + template + bool byte_string_value(const Source& b, + semantic_tag tag, + const ser_context& context, + std::error_code& ec, + typename std::enable_if::value,int>::type = 0) + { + return visit_byte_string(byte_string_view(reinterpret_cast(b.data()),b.size()), tag, context, ec); + } + + template + bool byte_string_value(const Source& b, + uint64_t ext_tag, + const ser_context& context, + std::error_code& ec, + typename std::enable_if::value,int>::type = 0) + { + return visit_byte_string(byte_string_view(reinterpret_cast(b.data()),b.size()), ext_tag, context, ec); + } + + bool uint64_value(uint64_t value, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + return visit_uint64(value, tag, context, ec); + } + + bool int64_value(int64_t value, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + return visit_int64(value, tag, context, ec); + } + + bool half_value(uint16_t value, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + return visit_half(value, tag, context, ec); + } + + bool double_value(double value, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + return visit_double(value, tag, context, ec); + } + + template + bool typed_array(const jsoncons::span& data, + semantic_tag tag=semantic_tag::none, + const ser_context& context=ser_context()) + { + std::error_code ec; + bool more = visit_typed_array(data, tag, context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + template + bool typed_array(const jsoncons::span& data, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + return visit_typed_array(data, tag, context, ec); + } + + bool typed_array(half_arg_t, const jsoncons::span& s, + semantic_tag tag = semantic_tag::none, + const ser_context& context = ser_context()) + { + std::error_code ec; + bool more = visit_typed_array(half_arg, s, tag, context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + bool typed_array(half_arg_t, const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + return visit_typed_array(half_arg, s, tag, context, ec); + } + + bool begin_multi_dim(const jsoncons::span& shape, + semantic_tag tag = semantic_tag::multi_dim_row_major, + const ser_context& context=ser_context()) + { + std::error_code ec; + bool more = visit_begin_multi_dim(shape, tag, context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + bool begin_multi_dim(const jsoncons::span& shape, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + return visit_begin_multi_dim(shape, tag, context, ec); + } + + bool end_multi_dim(const ser_context& context=ser_context()) + { + std::error_code ec; + bool more = visit_end_multi_dim(context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + bool end_multi_dim(const ser_context& context, + std::error_code& ec) + { + return visit_end_multi_dim(context, ec); + } + + #if !defined(JSONCONS_NO_DEPRECATED) + + JSONCONS_DEPRECATED_MSG("Instead, use byte_string_value(const Source&,semantic_tag=semantic_tag::none, const ser_context&=ser_context()") + bool byte_string_value(const uint8_t* p, std::size_t size, + semantic_tag tag=semantic_tag::none, + const ser_context& context=ser_context()) + { + return byte_string_value(byte_string(p, size), tag, context); + } + + JSONCONS_DEPRECATED_MSG("Instead, use byte_string_value(const Source&, semantic_tag, const ser_context&, std::error_code&") + bool byte_string_value(const uint8_t* p, std::size_t size, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + return byte_string_value(byte_string(p, size), tag, context, ec); + } + + JSONCONS_DEPRECATED_MSG("Instead, use key(const string_view_type&, const ser_context&=ser_context())") + bool name(const string_view_type& name, const ser_context& context=ser_context()) + { + return key(name, context); + } + + JSONCONS_DEPRECATED_MSG("Instead, use key(const string_view_type&, const ser_context&, std::error_code&)") + bool name(const string_view_type& name, const ser_context& context, std::error_code& ec) + { + return key(name, context, ec); + } + + JSONCONS_DEPRECATED_MSG("Instead, use byte_string_value(const byte_string_view&, semantic_tag=semantic_tag::none, const ser_context&=ser_context()") + bool byte_string_value(const byte_string_view& b, + byte_string_chars_format encoding_hint, + semantic_tag tag=semantic_tag::none, + const ser_context& context=ser_context()) + { + switch (encoding_hint) + { + case byte_string_chars_format::base16: + tag = semantic_tag::base16; + break; + case byte_string_chars_format::base64: + tag = semantic_tag::base64; + break; + case byte_string_chars_format::base64url: + tag = semantic_tag::base64url; + break; + default: + break; + } + return byte_string_value(b, tag, context); + } + + JSONCONS_DEPRECATED_MSG("Instead, use byte_string_value(const byte_string_view&, semantic_tag=semantic_tag::none, const ser_context&=ser_context()") + bool byte_string_value(const uint8_t* p, std::size_t size, + byte_string_chars_format encoding_hint, + semantic_tag tag=semantic_tag::none, + const ser_context& context=ser_context()) + { + switch (encoding_hint) + { + case byte_string_chars_format::base16: + tag = semantic_tag::base16; + break; + case byte_string_chars_format::base64: + tag = semantic_tag::base64; + break; + case byte_string_chars_format::base64url: + tag = semantic_tag::base64url; + break; + default: + break; + } + return byte_string_value(byte_string(p, size), tag, context); + } + + JSONCONS_DEPRECATED_MSG("Instead, use string_value with semantic_tag::bigint") + bool big_integer_value(const string_view_type& value, const ser_context& context=ser_context()) + { + return string_value(value, semantic_tag::bigint, context); + } + + JSONCONS_DEPRECATED_MSG("Instead, use string_value with semantic_tag::bigdec") + bool big_decimal_value(const string_view_type& value, const ser_context& context=ser_context()) + { + return string_value(value, semantic_tag::bigdec, context); + } + + JSONCONS_DEPRECATED_MSG("Instead, use string_value with semantic_tag::datetime") + bool date_time_value(const string_view_type& value, const ser_context& context=ser_context()) + { + return string_value(value, semantic_tag::datetime, context); + } + + JSONCONS_DEPRECATED_MSG("Instead, use int64_value with semantic_tag::epoch_second") + bool timestamp_value(int64_t val, const ser_context& context=ser_context()) + { + return int64_value(val, semantic_tag::epoch_second, context); + } + + JSONCONS_DEPRECATED_MSG("Remove calls to this method, it doesn't do anything") + bool begin_document() + { + return true; + } + + JSONCONS_DEPRECATED_MSG("Instead, use flush() when serializing") + bool end_document() + { + flush(); + return true; + } + + JSONCONS_DEPRECATED_MSG("Remove calls to this method, it doesn't do anything") + void begin_json() + { + } + + JSONCONS_DEPRECATED_MSG("Instead, use flush() when serializing") + void end_json() + { + end_document(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use key(const string_view_type&, const ser_context&=ser_context())") + void name(const char_type* p, std::size_t length, const ser_context& context) + { + name(string_view_type(p, length), context); + } + + JSONCONS_DEPRECATED_MSG("Instead, use uint64_value(uint64_t, semantic_tag = semantic_tag::none, const ser_context&=ser_context())") + void integer_value(int64_t value) + { + int64_value(value); + } + + JSONCONS_DEPRECATED_MSG("Instead, use int64_value(int64_t, semantic_tag = semantic_tag::none, const ser_context&=ser_context())") + void integer_value(int64_t value, const ser_context& context) + { + int64_value(value,context); + } + + JSONCONS_DEPRECATED_MSG("Instead, use uint64_value(uint64_t, semantic_tag = semantic_tag::none, const ser_context&=ser_context())") + void uinteger_value(uint64_t value) + { + uint64_value(value); + } + + JSONCONS_DEPRECATED_MSG("Instead, use uint64_value(uint64_t, semantic_tag = semantic_tag::none, const ser_context&=ser_context())") + void uinteger_value(uint64_t value, const ser_context& context) + { + uint64_value(value,context); + } + + JSONCONS_DEPRECATED_MSG("Instead, use string_value with semantic_tag::bigint") + bool bignum_value(const string_view_type& value, const ser_context& context=ser_context()) + { + return string_value(value, semantic_tag::bigint, context); + } + + JSONCONS_DEPRECATED_MSG("Instead, use string_value with semantic_tag::bigdec") + bool decimal_value(const string_view_type& value, const ser_context& context=ser_context()) + { + return string_value(value, semantic_tag::bigdec, context); + } + + #endif + private: + + virtual void visit_flush() = 0; + + virtual bool visit_begin_object(semantic_tag tag, + const ser_context& context, + std::error_code& ec) = 0; + + virtual bool visit_begin_object(std::size_t /*length*/, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + return visit_begin_object(tag, context, ec); + } + + virtual bool visit_end_object(const ser_context& context, + std::error_code& ec) = 0; + + virtual bool visit_begin_array(semantic_tag tag, + const ser_context& context, + std::error_code& ec) = 0; + + virtual bool visit_begin_array(std::size_t /*length*/, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + return visit_begin_array(tag, context, ec); + } + + virtual bool visit_end_array(const ser_context& context, + std::error_code& ec) = 0; + + virtual bool visit_key(const string_view_type& name, + const ser_context& context, + std::error_code&) = 0; + + virtual bool visit_null(semantic_tag tag, + const ser_context& context, + std::error_code& ec) = 0; + + virtual bool visit_bool(bool value, + semantic_tag tag, + const ser_context& context, + std::error_code&) = 0; + + virtual bool visit_string(const string_view_type& value, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) = 0; + + virtual bool visit_byte_string(const byte_string_view& value, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) = 0; + + virtual bool visit_byte_string(const byte_string_view& value, + uint64_t /* ext_tag */, + const ser_context& context, + std::error_code& ec) + { + return visit_byte_string(value, semantic_tag::none, context, ec); + } + + virtual bool visit_uint64(uint64_t value, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) = 0; + + virtual bool visit_int64(int64_t value, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) = 0; + + virtual bool visit_half(uint16_t value, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + return visit_double(binary::decode_half(value), + tag, + context, + ec); + } + + virtual bool visit_double(double value, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) = 0; + + virtual bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + bool more = begin_array(s.size(), tag, context, ec); + for (auto p = s.begin(); more && p != s.end(); ++p) + { + more = uint64_value(*p, semantic_tag::none, context, ec); + } + if (more) + { + more = end_array(context, ec); + } + return more; + } + + virtual bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + bool more = begin_array(s.size(), tag, context, ec); + for (auto p = s.begin(); more && p != s.end(); ++p) + { + more = uint64_value(*p, semantic_tag::none, context, ec); + } + if (more) + { + more = end_array(context, ec); + } + return more; + } + + virtual bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + bool more = begin_array(s.size(), tag, context, ec); + for (auto p = s.begin(); more && p != s.end(); ++p) + { + more = uint64_value(*p, semantic_tag::none, context, ec); + } + if (more) + { + more = end_array(context, ec); + } + return more; + } + + virtual bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + bool more = begin_array(s.size(), tag, context, ec); + for (auto p = s.begin(); more && p != s.end(); ++p) + { + more = uint64_value(*p,semantic_tag::none,context, ec); + } + if (more) + { + more = end_array(context, ec); + } + return more; + } + + virtual bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + bool more = begin_array(s.size(), tag,context, ec); + for (auto p = s.begin(); more && p != s.end(); ++p) + { + more = int64_value(*p,semantic_tag::none,context, ec); + } + if (more) + { + more = end_array(context, ec); + } + return more; + } + + virtual bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + bool more = begin_array(s.size(), tag,context, ec); + for (auto p = s.begin(); more && p != s.end(); ++p) + { + more = int64_value(*p,semantic_tag::none,context, ec); + } + if (more) + { + more = end_array(context, ec); + } + return more; + } + + virtual bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + bool more = begin_array(s.size(), tag,context, ec); + for (auto p = s.begin(); more && p != s.end(); ++p) + { + more = int64_value(*p,semantic_tag::none,context, ec); + } + if (more) + { + more = end_array(context, ec); + } + return more; + } + + virtual bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + bool more = begin_array(s.size(), tag,context, ec); + for (auto p = s.begin(); more && p != s.end(); ++p) + { + more = int64_value(*p,semantic_tag::none,context, ec); + } + if (more) + { + more = end_array(context, ec); + } + return more; + } + + virtual bool visit_typed_array(half_arg_t, + const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + bool more = begin_array(s.size(), tag, context, ec); + for (auto p = s.begin(); more && p != s.end(); ++p) + { + more = half_value(*p, semantic_tag::none, context, ec); + } + if (more) + { + more = end_array(context, ec); + } + return more; + } + + virtual bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + bool more = begin_array(s.size(), tag,context, ec); + for (auto p = s.begin(); more && p != s.end(); ++p) + { + more = double_value(*p,semantic_tag::none,context, ec); + } + if (more) + { + more = end_array(context, ec); + } + return more; + } + + virtual bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + bool more = begin_array(s.size(), tag,context, ec); + for (auto p = s.begin(); more && p != s.end(); ++p) + { + more = double_value(*p,semantic_tag::none,context, ec); + } + if (more) + { + more = end_array(context, ec); + } + return more; + } + + virtual bool visit_begin_multi_dim(const jsoncons::span& shape, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + bool more = visit_begin_array(2, tag, context, ec); + if (more) + { + more = visit_begin_array(shape.size(), tag, context, ec); + for (auto it = shape.begin(); more && it != shape.end(); ++it) + { + visit_uint64(*it, semantic_tag::none, context, ec); + } + if (more) + { + more = visit_end_array(context, ec); + } + } + return more; + } + + virtual bool visit_end_multi_dim(const ser_context& context, + std::error_code& ec) + { + return visit_end_array(context, ec); + } + }; + + template + class basic_default_json_visitor : public basic_json_visitor + { + bool parse_more_; + std::error_code ec_; + public: + using typename basic_json_visitor::string_view_type; + + basic_default_json_visitor(bool accept_more = true, + std::error_code ec = std::error_code()) + : parse_more_(accept_more), ec_(ec) + { + } + private: + void visit_flush() override + { + } + + bool visit_begin_object(semantic_tag, const ser_context&, std::error_code& ec) override + { + if (ec_) + { + ec = ec_; + } + return parse_more_; + } + + bool visit_end_object(const ser_context&, std::error_code& ec) override + { + if (ec_) + { + ec = ec_; + } + return parse_more_; + } + + bool visit_begin_array(semantic_tag, const ser_context&, std::error_code& ec) override + { + if (ec_) + { + ec = ec_; + } + return parse_more_; + } + + bool visit_end_array(const ser_context&, std::error_code& ec) override + { + if (ec_) + { + ec = ec_; + } + return parse_more_; + } + + bool visit_key(const string_view_type&, const ser_context&, std::error_code& ec) override + { + if (ec_) + { + ec = ec_; + } + return parse_more_; + } + + bool visit_null(semantic_tag, const ser_context&, std::error_code& ec) override + { + if (ec_) + { + ec = ec_; + } + return parse_more_; + } + + bool visit_string(const string_view_type&, semantic_tag, const ser_context&, std::error_code& ec) override + { + if (ec_) + { + ec = ec_; + } + return parse_more_; + } + + bool visit_byte_string(const byte_string_view&, semantic_tag, const ser_context&, std::error_code& ec) override + { + if (ec_) + { + ec = ec_; + } + return parse_more_; + } + + bool visit_uint64(uint64_t, semantic_tag, const ser_context&, std::error_code& ec) override + { + if (ec_) + { + ec = ec_; + } + return parse_more_; + } + + bool visit_int64(int64_t, semantic_tag, const ser_context&, std::error_code& ec) override + { + if (ec_) + { + ec = ec_; + } + return parse_more_; + } + + bool visit_half(uint16_t, semantic_tag, const ser_context&, std::error_code& ec) override + { + if (ec_) + { + ec = ec_; + } + return parse_more_; + } + + bool visit_double(double, semantic_tag, const ser_context&, std::error_code& ec) override + { + if (ec_) + { + ec = ec_; + } + return parse_more_; + } + + bool visit_bool(bool, semantic_tag, const ser_context&, std::error_code& ec) override + { + if (ec_) + { + ec = ec_; + } + return parse_more_; + } + }; + + template + class basic_json_tee_visitor : public basic_json_visitor + { + public: + using typename basic_json_visitor::char_type; + using typename basic_json_visitor::string_view_type; + private: + basic_json_visitor& destination0_; + basic_json_visitor& destination1_; + + // noncopyable and nonmoveable + basic_json_tee_visitor(const basic_json_tee_visitor&) = delete; + basic_json_tee_visitor& operator=(const basic_json_tee_visitor&) = delete; + public: + basic_json_tee_visitor(basic_json_visitor& destination0, + basic_json_visitor& destination1) + : destination0_(destination0), destination1_(destination1) + { + } + + basic_json_visitor& destination1() + { + return destination0_; + } + + basic_json_visitor& destination2() + { + return destination1_; + } + + private: + void visit_flush() override + { + destination0_.flush(); + } + + bool visit_begin_object(semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + bool more0 = destination0_.begin_object(tag, context, ec); + bool more1 = destination1_.begin_object(tag, context, ec); + + return more0 && more1; + } + + bool visit_begin_object(std::size_t length, semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + bool more0 = destination0_.begin_object(length, tag, context, ec); + bool more1 = destination1_.begin_object(length, tag, context, ec); + + return more0 && more1; + } + + bool visit_end_object(const ser_context& context, std::error_code& ec) override + { + bool more0 = destination0_.end_object(context, ec); + bool more1 = destination1_.end_object(context, ec); + + return more0 && more1; + } + + bool visit_begin_array(semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + bool more0 = destination0_.begin_array(tag, context, ec); + bool more1 = destination1_.begin_array(tag, context, ec); + + return more0 && more1; + } + + bool visit_begin_array(std::size_t length, semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + bool more0 = destination0_.begin_array(length, tag, context, ec); + bool more1 = destination1_.begin_array(length, tag, context, ec); + + return more0 && more1; + } + + bool visit_end_array(const ser_context& context, std::error_code& ec) override + { + bool more0 = destination0_.end_array(context, ec); + bool more1 = destination1_.end_array(context, ec); + + return more0 && more1; + } + + bool visit_key(const string_view_type& name, + const ser_context& context, + std::error_code& ec) override + { + bool more0 = destination0_.key(name, context, ec); + bool more1 = destination1_.key(name, context, ec); + + return more0 && more1; + } + + bool visit_string(const string_view_type& value, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + bool more0 = destination0_.string_value(value, tag, context, ec); + bool more1 = destination1_.string_value(value, tag, context, ec); + + return more0 && more1; + } + + bool visit_byte_string(const byte_string_view& b, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + bool more0 = destination0_.byte_string_value(b, tag, context, ec); + bool more1 = destination1_.byte_string_value(b, tag, context, ec); + + return more0 && more1; + } + + bool visit_uint64(uint64_t value, semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + bool more0 = destination0_.uint64_value(value, tag, context, ec); + bool more1 = destination1_.uint64_value(value, tag, context, ec); + + return more0 && more1; + } + + bool visit_int64(int64_t value, semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + bool more0 = destination0_.int64_value(value, tag, context, ec); + bool more1 = destination1_.int64_value(value, tag, context, ec); + + return more0 && more1; + } + + bool visit_half(uint16_t value, semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + bool more0 = destination0_.half_value(value, tag, context, ec); + bool more1 = destination1_.half_value(value, tag, context, ec); + + return more0 && more1; + } + + bool visit_double(double value, semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + bool more0 = destination0_.double_value(value, tag, context, ec); + bool more1 = destination1_.double_value(value, tag, context, ec); + + return more0 && more1; + } + + bool visit_bool(bool value, semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + bool more0 = destination0_.bool_value(value, tag, context, ec); + bool more1 = destination1_.bool_value(value, tag, context, ec); + + return more0 && more1; + } + + bool visit_null(semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + bool more0 = destination0_.null_value(tag, context, ec); + bool more1 = destination1_.null_value(tag, context, ec); + + return more0 && more1; + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + bool more0 = destination0_.typed_array(s, tag, context, ec); + bool more1 = destination1_.typed_array(s, tag, context, ec); + + return more0 && more1; + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + bool more0 = destination0_.typed_array(s, tag, context, ec); + bool more1 = destination1_.typed_array(s, tag, context, ec); + + return more0 && more1; + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + bool more0 = destination0_.typed_array(s, tag, context, ec); + bool more1 = destination1_.typed_array(s, tag, context, ec); + + return more0 && more1; + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + bool more0 = destination0_.typed_array(s, tag, context, ec); + bool more1 = destination1_.typed_array(s, tag, context, ec); + + return more0 && more1; + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + bool more0 = destination0_.typed_array(s, tag, context, ec); + bool more1 = destination1_.typed_array(s, tag, context, ec); + + return more0 && more1; + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + bool more0 = destination0_.typed_array(s, tag, context, ec); + bool more1 = destination1_.typed_array(s, tag, context, ec); + + return more0 && more1; + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + bool more0 = destination0_.typed_array(s, tag, context, ec); + bool more1 = destination1_.typed_array(s, tag, context, ec); + + return more0 && more1; + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + bool more0 = destination0_.typed_array(s, tag, context, ec); + bool more1 = destination1_.typed_array(s, tag, context, ec); + + return more0 && more1; + } + + bool visit_typed_array(half_arg_t, + const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + bool more0 = destination0_.typed_array(half_arg, s, tag, context, ec); + bool more1 = destination1_.typed_array(half_arg, s, tag, context, ec); + + return more0 && more1; + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + bool more0 = destination0_.typed_array(s, tag, context, ec); + bool more1 = destination1_.typed_array(s, tag, context, ec); + + return more0 && more1; + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + bool more0 = destination0_.typed_array(s, tag, context, ec); + bool more1 = destination1_.typed_array(s, tag, context, ec); + + return more0 && more1; + } + + bool visit_begin_multi_dim(const jsoncons::span& shape, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + bool more0 = destination0_.begin_multi_dim(shape, tag, context, ec); + bool more1 = destination1_.begin_multi_dim(shape, tag, context, ec); + + return more0 && more1; + } + + bool visit_end_multi_dim(const ser_context& context, + std::error_code& ec) override + { + bool more0 = destination0_.end_multi_dim(context, ec); + bool more1 = destination1_.end_multi_dim(context, ec); + + return more0 && more1; + } + + }; + + template + class basic_json_diagnostics_visitor : public basic_default_json_visitor + { + public: + using stream_type = std::basic_ostream; + using string_type = std::basic_string; + + private: + using supertype = basic_default_json_visitor; + using string_view_type = typename supertype::string_view_type; + + struct enabler {}; + + static constexpr CharT visit_begin_array_name[] = {'v','i','s','i','t','_','b','e','g','i','n','_','a','r','r','a','y', 0}; + static constexpr CharT visit_end_array_name[] = {'v','i','s','i','t','_','e','n','d','_','a','r','r','a','y', 0}; + static constexpr CharT visit_begin_object_name[] = {'v','i','s','i','t','_','b','e','g','i','n','_','o','b','j','e','c','t', 0}; + static constexpr CharT visit_end_object_name[] = {'v','i','s','i','t','_','e','n','d','_','o','b','j','e','c','t', 0}; + static constexpr CharT visit_key_name[] = {'v','i','s','i','t','_','k','e','y', 0}; + static constexpr CharT visit_string_name[] = {'v','i','s','i','t','_','s','t','r','i','n','g', 0}; + static constexpr CharT visit_byte_string_name[] = {'v','i','s','i','t','_','b','y','t','e','_','s','t','r','i','n','g', 0}; + static constexpr CharT visit_null_name[] = {'v','i','s','i','t','_','n','u','l','l', 0}; + static constexpr CharT visit_bool_name[] = {'v','i','s','i','t','_','b','o','o','l', 0}; + static constexpr CharT visit_uint64_name[] = {'v','i','s','i','t','_','u','i','n','t','6','4', 0}; + static constexpr CharT visit_int64_name[] = {'v','i','s','i','t','_','i','n','t','6','4', 0}; + static constexpr CharT visit_half_name[] = {'v','i','s','i','t','_','h','a','l','f', 0}; + static constexpr CharT visit_double_name[] = {'v','i','s','i','t','_','d','o','u','b','l','e', 0}; + + static constexpr CharT separator_ = ':'; + + stream_type& output_; + string_type indentation_; + long level_; + + public: + // If CharT is char, then enable the default constructor which binds to + // std::cout. + template + basic_json_diagnostics_visitor( + typename std::enable_if::value, U>::type = enabler{}) + : basic_json_diagnostics_visitor(std::cout) + { + } + + // If CharT is wchar_t, then enable the default constructor which binds + // to std::wcout. + template + basic_json_diagnostics_visitor( + typename std::enable_if::value, U>::type = enabler{}) + : basic_json_diagnostics_visitor(std::wcout) + { + } + + explicit basic_json_diagnostics_visitor( + stream_type& output, + string_type indentation = string_type()) + : output_(output), + indentation_(std::move(indentation)), + level_(0) + { + } + + private: + void indent() + { + for (long i=0; i constexpr C basic_json_diagnostics_visitor::visit_begin_array_name[]; + template constexpr C basic_json_diagnostics_visitor::visit_end_array_name[]; + template constexpr C basic_json_diagnostics_visitor::visit_begin_object_name[]; + template constexpr C basic_json_diagnostics_visitor::visit_end_object_name[]; + template constexpr C basic_json_diagnostics_visitor::visit_key_name[]; + template constexpr C basic_json_diagnostics_visitor::visit_string_name[]; + template constexpr C basic_json_diagnostics_visitor::visit_byte_string_name[]; + template constexpr C basic_json_diagnostics_visitor::visit_null_name[]; + template constexpr C basic_json_diagnostics_visitor::visit_bool_name[]; + template constexpr C basic_json_diagnostics_visitor::visit_uint64_name[]; + template constexpr C basic_json_diagnostics_visitor::visit_int64_name[]; + template constexpr C basic_json_diagnostics_visitor::visit_half_name[]; + template constexpr C basic_json_diagnostics_visitor::visit_double_name[]; + + using json_visitor = basic_json_visitor; + using wjson_visitor = basic_json_visitor; + + using json_tee_visitor = basic_json_tee_visitor; + using wjson_tee_visitor = basic_json_tee_visitor; + + using default_json_visitor = basic_default_json_visitor; + using wdefault_json_visitor = basic_default_json_visitor; + + using json_diagnostics_visitor = basic_json_diagnostics_visitor; + using wjson_diagnostics_visitor = basic_json_diagnostics_visitor; + +#if !defined(JSONCONS_NO_DEPRECATED) +template +using basic_json_content_handler = basic_json_visitor; + +JSONCONS_DEPRECATED_MSG("Instead, use json_visitor") typedef json_visitor json_content_handler; +JSONCONS_DEPRECATED_MSG("Instead, use wjson_visitor") typedef wjson_visitor wjson_content_handler; + +template +using basic_default_json_content_handler = basic_default_json_visitor; + +JSONCONS_DEPRECATED_MSG("Instead, use default_json_visitor") typedef default_json_visitor default_json_content_handler; +JSONCONS_DEPRECATED_MSG("Instead, use default_wjson_visitor") typedef wdefault_json_visitor default_wjson_content_handler; +#endif + +} // namespace jsoncons + +#endif diff --git a/include/jsoncons/json_visitor2.hpp b/include/jsoncons/json_visitor2.hpp new file mode 100644 index 0000000..26096aa --- /dev/null +++ b/include/jsoncons/json_visitor2.hpp @@ -0,0 +1,2079 @@ +// Copyright 2018 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSON_VISITOR2_HPP +#define JSONCONS_JSON_VISITOR2_HPP + +#include +#include + +namespace jsoncons { + + template > + class basic_json_visitor2_to_visitor_adaptor; + + template + class basic_json_visitor2 + { + template + friend class basic_json_visitor2_to_visitor_adaptor; + public: + using char_type = CharT; + using char_traits_type = std::char_traits; + + using string_view_type = jsoncons::basic_string_view; + + basic_json_visitor2(basic_json_visitor2&&) = default; + + basic_json_visitor2& operator=(basic_json_visitor2&&) = default; + + basic_json_visitor2() = default; + + virtual ~basic_json_visitor2() noexcept = default; + + void flush() + { + visit_flush(); + } + + bool begin_object(semantic_tag tag=semantic_tag::none, + const ser_context& context=ser_context()) + { + std::error_code ec; + bool more = visit_begin_object(tag, context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + bool begin_object(std::size_t length, + semantic_tag tag=semantic_tag::none, + const ser_context& context = ser_context()) + { + std::error_code ec; + bool more = visit_begin_object(length, tag, context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + bool end_object(const ser_context& context = ser_context()) + { + std::error_code ec; + bool more = visit_end_object(context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + bool begin_array(semantic_tag tag=semantic_tag::none, + const ser_context& context=ser_context()) + { + std::error_code ec; + bool more = visit_begin_array(tag, context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + bool begin_array(std::size_t length, + semantic_tag tag=semantic_tag::none, + const ser_context& context=ser_context()) + { + std::error_code ec; + bool more = visit_begin_array(length, tag, context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + bool end_array(const ser_context& context=ser_context()) + { + std::error_code ec; + bool more = visit_end_array(context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + bool key(const string_view_type& name, const ser_context& context=ser_context()) + { + std::error_code ec; + bool more = visit_string(name, semantic_tag::none, context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + bool null_value(semantic_tag tag = semantic_tag::none, + const ser_context& context=ser_context()) + { + std::error_code ec; + bool more = visit_null(tag, context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + bool bool_value(bool value, + semantic_tag tag = semantic_tag::none, + const ser_context& context=ser_context()) + { + std::error_code ec; + bool more = visit_bool(value, tag, context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + bool string_value(const string_view_type& value, + semantic_tag tag = semantic_tag::none, + const ser_context& context=ser_context()) + { + std::error_code ec; + bool more = visit_string(value, tag, context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + template + bool byte_string_value(const Source& b, + semantic_tag tag=semantic_tag::none, + const ser_context& context=ser_context(), + typename std::enable_if::value,int>::type = 0) + { + std::error_code ec; + bool more = visit_byte_string(byte_string_view(reinterpret_cast(b.data()),b.size()), tag, context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + template + bool byte_string_value(const Source& b, + uint64_t ext_tag, + const ser_context& context=ser_context(), + typename std::enable_if::value,int>::type = 0) + { + std::error_code ec; + bool more = visit_byte_string(byte_string_view(reinterpret_cast(b.data()),b.size()), ext_tag, context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + bool uint64_value(uint64_t value, + semantic_tag tag = semantic_tag::none, + const ser_context& context=ser_context()) + { + std::error_code ec; + bool more = visit_uint64(value, tag, context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + bool int64_value(int64_t value, + semantic_tag tag = semantic_tag::none, + const ser_context& context=ser_context()) + { + std::error_code ec; + bool more = visit_int64(value, tag, context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + bool half_value(uint16_t value, + semantic_tag tag = semantic_tag::none, + const ser_context& context=ser_context()) + { + std::error_code ec; + bool more = visit_half(value, tag, context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + bool double_value(double value, + semantic_tag tag = semantic_tag::none, + const ser_context& context=ser_context()) + { + std::error_code ec; + bool more = visit_double(value, tag, context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + bool begin_object(semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + return visit_begin_object(tag, context, ec); + } + + bool begin_object(std::size_t length, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + return visit_begin_object(length, tag, context, ec); + } + + bool end_object(const ser_context& context, std::error_code& ec) + { + return visit_end_object(context, ec); + } + + bool begin_array(semantic_tag tag, const ser_context& context, std::error_code& ec) + { + return visit_begin_array(tag, context, ec); + } + + bool begin_array(std::size_t length, semantic_tag tag, const ser_context& context, std::error_code& ec) + { + return visit_begin_array(length, tag, context, ec); + } + + bool end_array(const ser_context& context, std::error_code& ec) + { + return visit_end_array(context, ec); + } + + bool key(const string_view_type& name, const ser_context& context, std::error_code& ec) + { + return visit_string(name, semantic_tag::none, context, ec); + } + + bool null_value(semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + return visit_null(tag, context, ec); + } + + bool bool_value(bool value, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + return visit_bool(value, tag, context, ec); + } + + bool string_value(const string_view_type& value, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + return visit_string(value, tag, context, ec); + } + + template + bool byte_string_value(const Source& b, + semantic_tag tag, + const ser_context& context, + std::error_code& ec, + typename std::enable_if::value,int>::type = 0) + { + return visit_byte_string(byte_string_view(reinterpret_cast(b.data()),b.size()), tag, context, ec); + } + + template + bool byte_string_value(const Source& b, + uint64_t ext_tag, + const ser_context& context, + std::error_code& ec, + typename std::enable_if::value,int>::type = 0) + { + return visit_byte_string(byte_string_view(reinterpret_cast(b.data()),b.size()), ext_tag, context, ec); + } + + bool uint64_value(uint64_t value, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + return visit_uint64(value, tag, context, ec); + } + + bool int64_value(int64_t value, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + return visit_int64(value, tag, context, ec); + } + + bool half_value(uint16_t value, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + return visit_half(value, tag, context, ec); + } + + bool double_value(double value, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + return visit_double(value, tag, context, ec); + } + + template + bool typed_array(const jsoncons::span& data, + semantic_tag tag=semantic_tag::none, + const ser_context& context=ser_context()) + { + std::error_code ec; + bool more = visit_typed_array(data, tag, context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + template + bool typed_array(const jsoncons::span& data, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + return visit_typed_array(data, tag, context, ec); + } + + bool typed_array(half_arg_t, const jsoncons::span& s, + semantic_tag tag = semantic_tag::none, + const ser_context& context = ser_context()) + { + std::error_code ec; + bool more = visit_typed_array(half_arg, s, tag, context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + bool typed_array(half_arg_t, const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + return visit_typed_array(half_arg, s, tag, context, ec); + } + + bool begin_multi_dim(const jsoncons::span& shape, + semantic_tag tag = semantic_tag::multi_dim_row_major, + const ser_context& context=ser_context()) + { + std::error_code ec; + bool more = visit_begin_multi_dim(shape, tag, context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + bool begin_multi_dim(const jsoncons::span& shape, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + return visit_begin_multi_dim(shape, tag, context, ec); + } + + bool end_multi_dim(const ser_context& context=ser_context()) + { + std::error_code ec; + bool more = visit_end_multi_dim(context, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, context.line(), context.column())); + } + return more; + } + + bool end_multi_dim(const ser_context& context, + std::error_code& ec) + { + return visit_end_multi_dim(context, ec); + } + + private: + + virtual void visit_flush() = 0; + + virtual bool visit_begin_object(semantic_tag tag, + const ser_context& context, + std::error_code& ec) = 0; + + virtual bool visit_begin_object(std::size_t /*length*/, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + return visit_begin_object(tag, context, ec); + } + + virtual bool visit_end_object(const ser_context& context, + std::error_code& ec) = 0; + + virtual bool visit_begin_array(semantic_tag tag, + const ser_context& context, + std::error_code& ec) = 0; + + virtual bool visit_begin_array(std::size_t /*length*/, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + return visit_begin_array(tag, context, ec); + } + + virtual bool visit_end_array(const ser_context& context, + std::error_code& ec) = 0; + + virtual bool visit_null(semantic_tag tag, + const ser_context& context, + std::error_code& ec) = 0; + + virtual bool visit_bool(bool value, + semantic_tag tag, + const ser_context& context, + std::error_code&) = 0; + + virtual bool visit_string(const string_view_type& value, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) = 0; + + virtual bool visit_byte_string(const byte_string_view& value, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) = 0; + + virtual bool visit_byte_string(const byte_string_view& value, + uint64_t /*ext_tag*/, + const ser_context& context, + std::error_code& ec) + { + return visit_byte_string(value, semantic_tag::none, context, ec); + } + + virtual bool visit_uint64(uint64_t value, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) = 0; + + virtual bool visit_int64(int64_t value, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) = 0; + + virtual bool visit_half(uint16_t value, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + return visit_double(binary::decode_half(value), + tag, + context, + ec); + } + + virtual bool visit_double(double value, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) = 0; + + virtual bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + bool more = begin_array(s.size(), tag, context, ec); + for (auto p = s.begin(); more && p != s.end(); ++p) + { + more = uint64_value(*p, semantic_tag::none, context, ec); + } + if (more) + { + more = end_array(context, ec); + } + return more; + } + + virtual bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + bool more = begin_array(s.size(), tag, context, ec); + for (auto p = s.begin(); more && p != s.end(); ++p) + { + more = uint64_value(*p, semantic_tag::none, context, ec); + } + if (more) + { + more = end_array(context, ec); + } + return more; + } + + virtual bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + bool more = begin_array(s.size(), tag, context, ec); + for (auto p = s.begin(); more && p != s.end(); ++p) + { + more = uint64_value(*p, semantic_tag::none, context, ec); + } + if (more) + { + more = end_array(context, ec); + } + return more; + } + + virtual bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + bool more = begin_array(s.size(), tag, context, ec); + for (auto p = s.begin(); more && p != s.end(); ++p) + { + more = uint64_value(*p,semantic_tag::none,context, ec); + } + if (more) + { + more = end_array(context, ec); + } + return more; + } + + virtual bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + bool more = begin_array(s.size(), tag,context, ec); + for (auto p = s.begin(); more && p != s.end(); ++p) + { + more = int64_value(*p,semantic_tag::none,context, ec); + } + if (more) + { + more = end_array(context, ec); + } + return more; + } + + virtual bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + bool more = begin_array(s.size(), tag,context, ec); + for (auto p = s.begin(); more && p != s.end(); ++p) + { + more = int64_value(*p,semantic_tag::none,context, ec); + } + if (more) + { + more = end_array(context, ec); + } + return more; + } + + virtual bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + bool more = begin_array(s.size(), tag,context, ec); + for (auto p = s.begin(); more && p != s.end(); ++p) + { + more = int64_value(*p,semantic_tag::none,context, ec); + } + if (more) + { + more = end_array(context, ec); + } + return more; + } + + virtual bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + bool more = begin_array(s.size(), tag,context, ec); + for (auto p = s.begin(); more && p != s.end(); ++p) + { + more = int64_value(*p,semantic_tag::none,context, ec); + } + if (more) + { + more = end_array(context, ec); + } + return more; + } + + virtual bool visit_typed_array(half_arg_t, + const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + bool more = begin_array(s.size(), tag, context, ec); + for (auto p = s.begin(); more && p != s.end(); ++p) + { + more = half_value(*p, semantic_tag::none, context, ec); + } + if (more) + { + more = end_array(context, ec); + } + return more; + } + + virtual bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + bool more = begin_array(s.size(), tag,context, ec); + for (auto p = s.begin(); more && p != s.end(); ++p) + { + more = double_value(*p,semantic_tag::none,context, ec); + } + if (more) + { + more = end_array(context, ec); + } + return more; + } + + virtual bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + bool more = begin_array(s.size(), tag,context, ec); + for (auto p = s.begin(); more && p != s.end(); ++p) + { + more = double_value(*p,semantic_tag::none,context, ec); + } + if (more) + { + more = end_array(context, ec); + } + return more; + } + + virtual bool visit_begin_multi_dim(const jsoncons::span& shape, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) + { + bool more = visit_begin_array(2, tag, context, ec); + if (more) + { + more = visit_begin_array(shape.size(), tag, context, ec); + for (auto it = shape.begin(); more && it != shape.end(); ++it) + { + visit_uint64(*it, semantic_tag::none, context, ec); + } + if (more) + { + more = visit_end_array(context, ec); + } + } + return more; + } + + virtual bool visit_end_multi_dim(const ser_context& context, + std::error_code& ec) + { + return visit_end_array(context, ec); + } + }; + + template + class basic_json_visitor2_to_visitor_adaptor : public basic_json_visitor2 + { + public: + using typename basic_json_visitor2::char_type; + using typename basic_json_visitor2::string_view_type; + private: + using char_allocator_type = typename std::allocator_traits:: template rebind_alloc; + + using string_type = std::basic_string,char_allocator_type>; + + enum class container_t {root, array, object}; + enum class target_t {destination, buffer}; + + struct level + { + private: + target_t state_; + container_t type_; + int even_odd_; + std::size_t count_; + public: + + level(target_t state, container_t type) noexcept + : state_(state), type_(type), even_odd_(type == container_t::object ? 0 : 1), count_(0) + { + } + + void advance() + { + if (!is_key()) + { + ++count_; + } + if (is_object()) + { + even_odd_ = !even_odd_; + } + } + + bool is_key() const + { + return even_odd_ == 0; + } + + bool is_object() const + { + return type_ == container_t::object; + } + + target_t target() const + { + return state_; + } + + std::size_t count() const + { + return count_; + } + }; + using level_allocator_type = typename std::allocator_traits:: template rebind_alloc; + + basic_default_json_visitor default_visitor_; + basic_json_visitor* destination_; + string_type key_; + string_type key_buffer_; + std::vector level_stack_; + + const std::basic_string null_constant = {'n','u','l','l'}; + const std::basic_string true_constant = { 't','r','u','e' }; + const std::basic_string false_constant = { 'f', 'a', 'l', 's', 'e' }; + + // noncopyable and nonmoveable + basic_json_visitor2_to_visitor_adaptor(const basic_json_visitor2_to_visitor_adaptor&) = delete; + basic_json_visitor2_to_visitor_adaptor& operator=(const basic_json_visitor2_to_visitor_adaptor&) = delete; + public: + explicit basic_json_visitor2_to_visitor_adaptor(const Allocator& alloc = Allocator()) + : default_visitor_(), destination_(std::addressof(default_visitor_)), + key_(alloc), key_buffer_(alloc), level_stack_(alloc) + { + level_stack_.emplace_back(target_t::destination,container_t::root); // root + } + + explicit basic_json_visitor2_to_visitor_adaptor(basic_json_visitor& visitor, + const Allocator& alloc = Allocator()) + : destination_(std::addressof(visitor)), + key_(alloc), key_buffer_(alloc), level_stack_(alloc) + { + level_stack_.emplace_back(target_t::destination,container_t::root); // root + } + + void reset() + { + key_.clear(); + key_buffer_.clear(); + level_stack_.clear(); + level_stack_.emplace_back(target_t::destination,container_t::root); // root + } + + basic_json_visitor& destination() + { + return *destination_; + } + + void destination(basic_json_visitor& dest) + { + destination_ = std::addressof(dest); + } + + private: + void visit_flush() override + { + destination_->flush(); + } + + bool visit_begin_object(semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + if (level_stack_.back().is_key()) + { + if (level_stack_.back().target() == target_t::buffer && level_stack_.back().count() > 0) + { + key_buffer_.push_back(','); + } + level_stack_.emplace_back(target_t::buffer, container_t::object); + key_buffer_.push_back('{'); + return true; + } + else + { + switch (level_stack_.back().target()) + { + case target_t::buffer: + level_stack_.emplace_back(target_t::buffer, container_t::object); + key_buffer_.push_back('{'); + return true; + default: + level_stack_.emplace_back(target_t::destination, container_t::object); + return destination_->begin_object(tag, context, ec); + } + } + } + + bool visit_begin_object(std::size_t length, semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + if (level_stack_.back().is_key()) + { + if (level_stack_.back().target() == target_t::buffer && level_stack_.back().count() > 0) + { + key_buffer_.push_back(','); + } + level_stack_.emplace_back(target_t::buffer, container_t::object); + key_buffer_.push_back('{'); + return true; + } + else + { + switch (level_stack_.back().target()) + { + case target_t::buffer: + if (!level_stack_.back().is_object() && level_stack_.back().count() > 0) + { + key_buffer_.push_back(','); + } + level_stack_.emplace_back(target_t::buffer, container_t::object); + key_buffer_.push_back('{'); + return true; + default: + level_stack_.emplace_back(target_t::destination, container_t::object); + return destination_->begin_object(length, tag, context, ec); + } + } + } + + bool visit_end_object(const ser_context& context, std::error_code& ec) override + { + bool retval = true; + switch (level_stack_.back().target()) + { + case target_t::buffer: + key_buffer_.push_back('}'); + JSONCONS_ASSERT(level_stack_.size() > 1); + level_stack_.pop_back(); + + if (level_stack_.back().target() == target_t::destination) + { + retval = destination_->key(key_buffer_,context, ec); + key_buffer_.clear(); + } + else if (level_stack_.back().is_key()) + { + key_buffer_.push_back(':'); + } + level_stack_.back().advance(); + break; + default: + JSONCONS_ASSERT(level_stack_.size() > 1); + level_stack_.pop_back(); + level_stack_.back().advance(); + retval = destination_->end_object(context, ec); + break; + } + return retval; + } + + bool visit_begin_array(semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + if (level_stack_.back().is_key()) + { + if (level_stack_.back().target() == target_t::buffer && level_stack_.back().count() > 0) + { + key_buffer_.push_back(','); + } + level_stack_.emplace_back(target_t::buffer, container_t::array); + key_buffer_.push_back('['); + return true; + } + else + { + switch (level_stack_.back().target()) + { + case target_t::buffer: + if (level_stack_.back().is_object() && level_stack_.back().count() > 0) + { + key_buffer_.push_back(','); + } + level_stack_.emplace_back(target_t::buffer, container_t::array); + key_buffer_.push_back('['); + return true; + default: + level_stack_.emplace_back(target_t::destination, container_t::array); + return destination_->begin_array(tag, context, ec); + } + } + } + + bool visit_begin_array(std::size_t length, semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + if (level_stack_.back().is_key()) + { + if (level_stack_.back().target() == target_t::buffer && level_stack_.back().count() > 0) + { + key_buffer_.push_back(','); + } + level_stack_.emplace_back(target_t::buffer, container_t::array); + key_buffer_.push_back('['); + return true; + } + else + { + switch (level_stack_.back().target()) + { + case target_t::buffer: + if (!level_stack_.back().is_object() && level_stack_.back().count() > 0) + { + key_buffer_.push_back(','); + } + level_stack_.emplace_back(target_t::buffer, container_t::array); + key_buffer_.push_back('['); + return true; + default: + level_stack_.emplace_back(target_t::destination, container_t::array); + return destination_->begin_array(length, tag, context, ec); + } + } + } + + bool visit_end_array(const ser_context& context, std::error_code& ec) override + { + bool retval = true; + switch (level_stack_.back().target()) + { + case target_t::buffer: + key_buffer_.push_back(']'); + JSONCONS_ASSERT(level_stack_.size() > 1); + level_stack_.pop_back(); + if (level_stack_.back().target() == target_t::destination) + { + retval = destination_->key(key_buffer_, context, ec); + key_buffer_.clear(); + } + else if (level_stack_.back().is_key()) + { + key_buffer_.push_back(':'); + } + level_stack_.back().advance(); + break; + default: + JSONCONS_ASSERT(level_stack_.size() > 1); + level_stack_.pop_back(); + level_stack_.back().advance(); + retval = destination_->end_array(context, ec); + break; + } + return retval; + } + + bool visit_string(const string_view_type& value, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + bool retval = true; + + if (level_stack_.back().is_key()) + { + switch (level_stack_.back().target()) + { + case target_t::buffer: + if (level_stack_.back().count() > 0) + { + key_buffer_.push_back(','); + } + key_buffer_.push_back('\"'); + key_buffer_.insert(key_buffer_.end(), value.begin(), value.end()); + key_buffer_.push_back('\"'); + key_buffer_.push_back(':'); + retval = true; + break; + default: + retval = destination_->key(value, context, ec); + break; + } + } + else + { + switch (level_stack_.back().target()) + { + case target_t::buffer: + if (!level_stack_.back().is_object() && level_stack_.back().count() > 0) + { + key_buffer_.push_back(','); + } + key_buffer_.push_back('\"'); + key_buffer_.insert(key_buffer_.end(), value.begin(), value.end()); + key_buffer_.push_back('\"'); + retval = true; + break; + default: + retval = destination_->string_value(value, tag, context, ec); + break; + } + } + + level_stack_.back().advance(); + return retval; + } + + bool visit_byte_string(const byte_string_view& value, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + bool retval = true; + + if (level_stack_.back().is_key() || level_stack_.back().target() == target_t::buffer) + { + key_.clear(); + switch (tag) + { + case semantic_tag::base64: + encode_base64(value.begin(), value.end(), key_); + break; + case semantic_tag::base16: + encode_base16(value.begin(), value.end(),key_); + break; + default: + encode_base64url(value.begin(), value.end(),key_); + break; + } + } + + if (level_stack_.back().is_key()) + { + switch (level_stack_.back().target()) + { + case target_t::buffer: + if (level_stack_.back().count() > 0) + { + key_buffer_.push_back(','); + } + key_buffer_.push_back('\"'); + key_buffer_.insert(key_buffer_.end(), key_.begin(), key_.end()); + key_buffer_.push_back('\"'); + key_buffer_.push_back(':'); + retval = true; + break; + default: + retval = destination_->key(key_, context, ec); + break; + } + } + else + { + switch (level_stack_.back().target()) + { + case target_t::buffer: + if (!level_stack_.back().is_object() && level_stack_.back().count() > 0) + { + key_buffer_.push_back(','); + } + key_buffer_.push_back('\"'); + key_buffer_.insert(key_buffer_.end(), key_.begin(), key_.end()); + key_buffer_.push_back('\"'); + retval = true; + break; + default: + retval = destination_->byte_string_value(value, tag, context, ec); + break; + } + } + + level_stack_.back().advance(); + return retval; + } + + bool visit_byte_string(const byte_string_view& value, + uint64_t ext_tag, + const ser_context& context, + std::error_code& ec) override + { + bool retval = true; + + if (level_stack_.back().is_key() || level_stack_.back().target() == target_t::buffer) + { + key_.clear(); + encode_base64url(value.begin(), value.end(),key_); + } + + if (level_stack_.back().is_key()) + { + switch (level_stack_.back().target()) + { + case target_t::buffer: + if (level_stack_.back().count() > 0) + { + key_buffer_.push_back(','); + } + key_buffer_.push_back('\"'); + key_buffer_.insert(key_buffer_.end(), key_.begin(), key_.end()); + key_buffer_.push_back('\"'); + key_buffer_.push_back(':'); + retval = true; + break; + default: + retval = destination_->key(key_, context, ec); + break; + } + } + else + { + switch (level_stack_.back().target()) + { + case target_t::buffer: + if (!level_stack_.back().is_object() && level_stack_.back().count() > 0) + { + key_buffer_.push_back(','); + } + key_buffer_.push_back('\"'); + key_buffer_.insert(key_buffer_.end(), key_.begin(), key_.end()); + key_buffer_.push_back('\"'); + retval = true; + break; + default: + retval = destination_->byte_string_value(value, ext_tag, context, ec); + break; + } + } + + level_stack_.back().advance(); + return retval; + } + + bool visit_uint64(uint64_t value, semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + bool retval = true; + + if (level_stack_.back().is_key() || level_stack_.back().target() == target_t::buffer) + { + key_.clear(); + jsoncons::detail::from_integer(value,key_); + } + + if (level_stack_.back().is_key()) + { + switch (level_stack_.back().target()) + { + case target_t::buffer: + if (level_stack_.back().count() > 0) + { + key_buffer_.push_back(','); + } + key_buffer_.insert(key_buffer_.end(), key_.begin(), key_.end()); + key_buffer_.push_back(':'); + retval = true; + break; + default: + retval = destination_->key(key_, context, ec); + break; + } + } + else + { + switch (level_stack_.back().target()) + { + case target_t::buffer: + if (!level_stack_.back().is_object() && level_stack_.back().count() > 0) + { + key_buffer_.push_back(','); + } + key_buffer_.insert(key_buffer_.end(), key_.begin(), key_.end()); + retval = true; + break; + default: + retval = destination_->uint64_value(value, tag, context, ec); + break; + } + } + + level_stack_.back().advance(); + return retval; + } + + bool visit_int64(int64_t value, semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + bool retval = true; + + if (level_stack_.back().is_key() || level_stack_.back().target() == target_t::buffer) + { + key_.clear(); + jsoncons::detail::from_integer(value,key_); + } + + if (level_stack_.back().is_key()) + { + switch (level_stack_.back().target()) + { + case target_t::buffer: + if (level_stack_.back().count() > 0) + { + key_buffer_.push_back(','); + } + key_buffer_.insert(key_buffer_.end(), key_.begin(), key_.end()); + key_buffer_.push_back(':'); + retval = true; + break; + default: + retval = destination_->key(key_, context, ec); + break; + } + } + else + { + switch (level_stack_.back().target()) + { + case target_t::buffer: + if (!level_stack_.back().is_object() && level_stack_.back().count() > 0) + { + key_buffer_.push_back(','); + } + key_buffer_.insert(key_buffer_.end(), key_.begin(), key_.end()); + retval = true; + break; + default: + retval = destination_->int64_value(value, tag, context, ec); + break; + } + } + + level_stack_.back().advance(); + return retval; + } + + bool visit_half(uint16_t value, semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + bool retval = true; + + if (level_stack_.back().is_key() || level_stack_.back().target() == target_t::buffer) + { + key_.clear(); + jsoncons::string_sink sink(key_); + jsoncons::detail::write_double f{float_chars_format::general,0}; + double x = binary::decode_half(value); + f(x, sink); + } + + if (level_stack_.back().is_key()) + { + switch (level_stack_.back().target()) + { + case target_t::buffer: + if (level_stack_.back().count() > 0) + { + key_buffer_.push_back(','); + } + key_buffer_.insert(key_buffer_.end(), key_.begin(), key_.end()); + key_buffer_.push_back(':'); + retval = true; + break; + default: + retval = destination_->key(key_, context, ec); + break; + } + } + else + { + switch (level_stack_.back().target()) + { + case target_t::buffer: + if (!level_stack_.back().is_object() && level_stack_.back().count() > 0) + { + key_buffer_.push_back(','); + } + key_buffer_.insert(key_buffer_.end(), key_.begin(), key_.end()); + retval = true; + break; + default: + retval = destination_->half_value(value, tag, context, ec); + break; + } + } + + level_stack_.back().advance(); + return retval; + } + + bool visit_double(double value, semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + bool retval = true; + + if (level_stack_.back().is_key() || level_stack_.back().target() == target_t::buffer) + { + key_.clear(); + string_sink sink(key_); + jsoncons::detail::write_double f{float_chars_format::general,0}; + f(value, sink); + } + + if (level_stack_.back().is_key()) + { + switch (level_stack_.back().target()) + { + case target_t::buffer: + if (level_stack_.back().count() > 0) + { + key_buffer_.push_back(','); + } + key_buffer_.insert(key_buffer_.end(), key_.begin(), key_.end()); + key_buffer_.push_back(':'); + retval = true; + break; + default: + retval = destination_->key(key_, context, ec); + break; + } + } + else + { + switch (level_stack_.back().target()) + { + case target_t::buffer: + if (!level_stack_.back().is_object() && level_stack_.back().count() > 0) + { + key_buffer_.push_back(','); + } + key_buffer_.insert(key_buffer_.end(), key_.begin(), key_.end()); + retval = true; + break; + default: + retval = destination_->double_value(value, tag, context, ec); + break; + } + } + + level_stack_.back().advance(); + return retval; + } + + bool visit_bool(bool value, semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + bool retval = true; + + if (level_stack_.back().is_key() || level_stack_.back().target() == target_t::buffer) + { + key_ = value ? true_constant : false_constant; + } + + if (level_stack_.back().is_key()) + { + switch (level_stack_.back().target()) + { + case target_t::buffer: + if (level_stack_.back().count() > 0) + { + key_buffer_.push_back(','); + } + key_buffer_.insert(key_buffer_.end(), key_.begin(), key_.end()); + key_buffer_.push_back(':'); + retval = true; + break; + default: + retval = destination_->key(key_, context, ec); + break; + } + } + else + { + switch (level_stack_.back().target()) + { + case target_t::buffer: + if (!level_stack_.back().is_object() && level_stack_.back().count() > 0) + { + key_buffer_.push_back(','); + } + key_buffer_.insert(key_buffer_.end(), key_.begin(), key_.end()); + retval = true; + break; + default: + retval = destination_->bool_value(value, tag, context, ec); + break; + } + } + + level_stack_.back().advance(); + return retval; + } + + bool visit_null(semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + bool retval = true; + + if (level_stack_.back().is_key() || level_stack_.back().target() == target_t::buffer) + { + key_ = null_constant; + } + + if (level_stack_.back().is_key()) + { + switch (level_stack_.back().target()) + { + case target_t::buffer: + if (level_stack_.back().count() > 0) + { + key_buffer_.push_back(','); + } + key_buffer_.insert(key_buffer_.end(), key_.begin(), key_.end()); + key_buffer_.push_back(':'); + retval = true; + break; + default: + retval = destination_->key(key_, context, ec); + break; + } + } + else + { + switch (level_stack_.back().target()) + { + case target_t::buffer: + if (!level_stack_.back().is_object() && level_stack_.back().count() > 0) + { + key_buffer_.push_back(','); + } + key_buffer_.insert(key_buffer_.end(), key_.begin(), key_.end()); + retval = true; + break; + default: + retval = destination_->null_value(tag, context, ec); + break; + } + } + + level_stack_.back().advance(); + return retval; + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + bool is_key = level_stack_.back().is_key(); + level_stack_.back().advance(); + + if (is_key || level_stack_.back().target() == target_t::buffer) + { + return basic_json_visitor2::visit_typed_array(s,tag,context,ec); + } + else + { + return destination_->typed_array(s, tag, context, ec); + } + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + bool is_key = level_stack_.back().is_key(); + level_stack_.back().advance(); + + if (is_key || level_stack_.back().target() == target_t::buffer) + { + return basic_json_visitor2::visit_typed_array(s,tag,context,ec); + } + else + { + return destination_->typed_array(s, tag, context, ec); + } + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + bool is_key = level_stack_.back().is_key(); + level_stack_.back().advance(); + + if (is_key || level_stack_.back().target() == target_t::buffer) + { + return basic_json_visitor2::visit_typed_array(s,tag,context,ec); + } + else + { + return destination_->typed_array(s, tag, context, ec); + } + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + bool is_key = level_stack_.back().is_key(); + level_stack_.back().advance(); + + if (is_key || level_stack_.back().target() == target_t::buffer) + { + return basic_json_visitor2::visit_typed_array(s,tag,context,ec); + } + else + { + return destination_->typed_array(s, tag, context, ec); + } + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + bool is_key = level_stack_.back().is_key(); + level_stack_.back().advance(); + + if (is_key || level_stack_.back().target() == target_t::buffer) + { + return basic_json_visitor2::visit_typed_array(s,tag,context,ec); + } + else + { + return destination_->typed_array(s, tag, context, ec); + } + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + bool is_key = level_stack_.back().is_key(); + level_stack_.back().advance(); + + if (is_key || level_stack_.back().target() == target_t::buffer) + { + return basic_json_visitor2::visit_typed_array(s,tag,context,ec); + } + else + { + return destination_->typed_array(s, tag, context, ec); + } + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + bool is_key = level_stack_.back().is_key(); + level_stack_.back().advance(); + + if (is_key || level_stack_.back().target() == target_t::buffer) + { + return basic_json_visitor2::visit_typed_array(s,tag,context,ec); + } + else + { + return destination_->typed_array(s, tag, context, ec); + } + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + bool is_key = level_stack_.back().is_key(); + level_stack_.back().advance(); + + if (is_key || level_stack_.back().target() == target_t::buffer) + { + return basic_json_visitor2::visit_typed_array(s,tag,context,ec); + } + else + { + return destination_->typed_array(s, tag, context, ec); + } + } + + bool visit_typed_array(half_arg_t, + const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + bool is_key = level_stack_.back().is_key(); + level_stack_.back().advance(); + + if (is_key || level_stack_.back().target() == target_t::buffer) + { + return basic_json_visitor2::visit_typed_array(half_arg,s,tag,context,ec); + } + else + { + return destination_->typed_array(half_arg, s, tag, context, ec); + } + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + bool is_key = level_stack_.back().is_key(); + level_stack_.back().advance(); + + if (is_key || level_stack_.back().target() == target_t::buffer) + { + return basic_json_visitor2::visit_typed_array(s,tag,context,ec); + } + else + { + return destination_->typed_array(s, tag, context, ec); + } + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + bool is_key = level_stack_.back().is_key(); + level_stack_.back().advance(); + + if (is_key || level_stack_.back().target() == target_t::buffer) + { + return basic_json_visitor2::visit_typed_array(s,tag,context,ec); + } + else + { + return destination_->typed_array(s, tag, context, ec); + } + } + }; + + template + class basic_default_json_visitor2 : public basic_json_visitor2 + { + bool parse_more_; + std::error_code ec_; + public: + using typename basic_json_visitor2::string_view_type; + + basic_default_json_visitor2(bool accept_more = true, + std::error_code ec = std::error_code()) + : parse_more_(accept_more), ec_(ec) + { + } + private: + void visit_flush() override + { + } + + bool visit_begin_object(semantic_tag, const ser_context&, std::error_code& ec) override + { + if (ec_) + { + ec = ec_; + } + return parse_more_; + } + + bool visit_begin_object(std::size_t, semantic_tag, const ser_context&, std::error_code& ec) override + { + if (ec_) + { + ec = ec_; + } + return parse_more_; + } + + bool visit_end_object(const ser_context&, std::error_code& ec) override + { + if (ec_) + { + ec = ec_; + } + return parse_more_; + } + + bool visit_begin_array(semantic_tag, const ser_context&, std::error_code& ec) override + { + if (ec_) + { + ec = ec_; + } + return parse_more_; + } + + bool visit_begin_array(std::size_t, semantic_tag, const ser_context&, std::error_code& ec) override + { + if (ec_) + { + ec = ec_; + } + return parse_more_; + } + + bool visit_end_array(const ser_context&, std::error_code& ec) override + { + if (ec_) + { + ec = ec_; + } + return parse_more_; + } + + bool visit_null(semantic_tag, const ser_context&, std::error_code& ec) override + { + if (ec_) + { + ec = ec_; + } + return parse_more_; + } + + bool visit_string(const string_view_type&, semantic_tag, const ser_context&, std::error_code& ec) override + { + if (ec_) + { + ec = ec_; + } + return parse_more_; + } + + bool visit_byte_string(const byte_string_view&, semantic_tag, const ser_context&, std::error_code& ec) override + { + if (ec_) + { + ec = ec_; + } + return parse_more_; + } + + bool visit_uint64(uint64_t, semantic_tag, const ser_context&, std::error_code& ec) override + { + if (ec_) + { + ec = ec_; + } + return parse_more_; + } + + bool visit_int64(int64_t, semantic_tag, const ser_context&, std::error_code& ec) override + { + if (ec_) + { + ec = ec_; + } + return parse_more_; + } + + bool visit_half(uint16_t, semantic_tag, const ser_context&, std::error_code& ec) override + { + if (ec_) + { + ec = ec_; + } + return parse_more_; + } + + bool visit_double(double, semantic_tag, const ser_context&, std::error_code& ec) override + { + if (ec_) + { + ec = ec_; + } + return parse_more_; + } + + bool visit_bool(bool, semantic_tag, const ser_context&, std::error_code& ec) override + { + if (ec_) + { + ec = ec_; + } + return parse_more_; + } + }; + + // basic_json_visitor_to_visitor2_adaptor + + template + class basic_json_visitor_to_visitor2_adaptor : public basic_json_visitor + { + public: + using typename basic_json_visitor::char_type; + using typename basic_json_visitor::string_view_type; + private: + basic_json_visitor2& destination_; + + // noncopyable and nonmoveable + basic_json_visitor_to_visitor2_adaptor(const basic_json_visitor_to_visitor2_adaptor&) = delete; + basic_json_visitor_to_visitor2_adaptor& operator=(const basic_json_visitor_to_visitor2_adaptor&) = delete; + public: + basic_json_visitor_to_visitor2_adaptor(basic_json_visitor2& visitor) + : destination_(visitor) + { + } + + basic_json_visitor2& destination() + { + return destination_; + } + + private: + void visit_flush() override + { + destination_.flush(); + } + + bool visit_begin_object(semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + return destination_.begin_object(tag, context, ec); + } + + bool visit_begin_object(std::size_t length, semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + return destination_.begin_object(length, tag, context, ec); + } + + bool visit_end_object(const ser_context& context, std::error_code& ec) override + { + return destination_.end_object(context, ec); + } + + bool visit_begin_array(semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + return destination_.begin_array(tag, context, ec); + } + + bool visit_begin_array(std::size_t length, semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + return destination_.begin_array(length, tag, context, ec); + } + + bool visit_end_array(const ser_context& context, std::error_code& ec) override + { + return destination_.end_array(context, ec); + } + + bool visit_key(const string_view_type& name, + const ser_context& context, + std::error_code& ec) override + { + return destination_.visit_string(name, context, ec); + } + + bool visit_string(const string_view_type& value, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + return destination_.string_value(value, tag, context, ec); + } + + bool visit_byte_string(const byte_string_view& b, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + return destination_.byte_string_value(b, tag, context, ec); + } + + bool visit_uint64(uint64_t value, semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + return destination_.uint64_value(value, tag, context, ec); + } + + bool visit_int64(int64_t value, semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + return destination_.int64_value(value, tag, context, ec); + } + + bool visit_half(uint16_t value, semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + return destination_.half_value(value, tag, context, ec); + } + + bool visit_double(double value, semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + return destination_.double_value(value, tag, context, ec); + } + + bool visit_bool(bool value, semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + return destination_.bool_value(value, tag, context, ec); + } + + bool visit_null(semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + return destination_.null_value(tag, context, ec); + } + }; + + class diagnostics_visitor2 : public basic_default_json_visitor2 + { + bool visit_begin_object(semantic_tag, const ser_context&, std::error_code&) override + { + std::cout << "visit_begin_object" << std::endl; + return true; + } + + bool visit_begin_object(std::size_t length, semantic_tag, const ser_context&, std::error_code&) override + { + std::cout << "visit_begin_object " << length << std::endl; + return true; + } + + bool visit_end_object(const ser_context&, std::error_code&) override + { + std::cout << "visit_end_object" << std::endl; + return true; + } + + bool visit_begin_array(semantic_tag, const ser_context&, std::error_code&) override + { + std::cout << "visit_begin_array" << std::endl; + return true; + } + + bool visit_begin_array(std::size_t length, semantic_tag, const ser_context&, std::error_code&) override + { + std::cout << "visit_begin_array " << length << std::endl; + return true; + } + + bool visit_end_array(const ser_context&, std::error_code&) override + { + std::cout << "visit_end_array" << std::endl; + return true; + } + + bool visit_string(const string_view_type& s, semantic_tag, const ser_context&, std::error_code&) override + { + std::cout << "visit_string " << s << std::endl; + return true; + } + bool visit_int64(int64_t val, semantic_tag, const ser_context&, std::error_code&) override + { + std::cout << "visit_int64 " << val << std::endl; + return true; + } + bool visit_uint64(uint64_t val, semantic_tag, const ser_context&, std::error_code&) override + { + std::cout << "visit_uint64 " << val << std::endl; + return true; + } + bool visit_bool(bool val, semantic_tag, const ser_context&, std::error_code&) override + { + std::cout << "visit_bool " << val << std::endl; + return true; + } + bool visit_null(semantic_tag, const ser_context&, std::error_code&) override + { + std::cout << "visit_null " << std::endl; + return true; + } + + bool visit_typed_array(const jsoncons::span& s, + semantic_tag tag, + const ser_context&, + std::error_code&) override + { + std::cout << "visit_typed_array uint16_t " << tag << std::endl; + for (auto val : s) + { + std::cout << val << "" << std::endl; + } + std::cout << "" << std::endl; + return true; + } + + bool visit_typed_array(half_arg_t, const jsoncons::span& s, + semantic_tag tag, + const ser_context&, + std::error_code&) override + { + std::cout << "visit_typed_array half_arg_t uint16_t " << tag << "" << std::endl; + for (auto val : s) + { + std::cout << val << "" << std::endl; + } + std::cout << "" << std::endl; + return true; + } + }; + + using json_visitor2 = basic_json_visitor2; + using default_json_visitor2 = basic_default_json_visitor2; + using json_visitor2_to_visitor_adaptor = basic_json_visitor2_to_visitor_adaptor; + +} // namespace jsoncons + +#endif diff --git a/include/jsoncons/more_type_traits.hpp b/include/jsoncons/more_type_traits.hpp new file mode 100644 index 0000000..8e6b6c2 --- /dev/null +++ b/include/jsoncons/more_type_traits.hpp @@ -0,0 +1,874 @@ +// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_MORE_TYPE_TRAITS_HPP +#define JSONCONS_MORE_TYPE_TRAITS_HPP + +#include +#include +#include +#include // std::enable_if, std::true_type +#include +#include // std::iterator_traits +#include +#include // std::array +#include // std::byte +#include // std::declval +#include // CHAR_BIT +#include + +namespace jsoncons { +namespace type_traits { + + // is_char8 + template + struct is_char8 : std::false_type {}; + + template + struct is_char8::value && + !std::is_same::value && + sizeof(uint8_t) == sizeof(CharT)>::type> : std::true_type {}; + + // is_char16 + template + struct is_char16 : std::false_type {}; + + template + struct is_char16::value && + !std::is_same::value && + (std::is_same::value || sizeof(uint16_t) == sizeof(CharT))>::type> : std::true_type {}; + + // is_char32 + template + struct is_char32 : std::false_type {}; + + template + struct is_char32::value && + !std::is_same::value && + (std::is_same::value || (!std::is_same::value && sizeof(uint32_t) == sizeof(CharT)))>::type> : std::true_type {}; + + // is_int128 + + template + struct is_int128_type : std::false_type {}; + +#if defined(JSONCONS_HAS_INT128) + template + struct is_int128_type::value>::type> : std::true_type {}; +#endif + + // is_unsigned_integer + + template + struct is_uint128_type : std::false_type {}; + +#if defined (JSONCONS_HAS_INT128) + template + struct is_uint128_type::value>::type> : std::true_type {}; +#endif + + template + class integer_limits + { + public: + static constexpr bool is_specialized = false; + }; + + template + class integer_limits::value && !std::is_same::value>::type> + { + public: + static constexpr bool is_specialized = true; + static constexpr bool is_signed = std::numeric_limits::is_signed; + static constexpr int digits = std::numeric_limits::digits; + static constexpr std::size_t buffer_size = static_cast(sizeof(T)*CHAR_BIT*0.302) + 3; + + static constexpr T(max)() noexcept + { + return (std::numeric_limits::max)(); + } + static constexpr T(min)() noexcept + { + return (std::numeric_limits::min)(); + } + static constexpr T lowest() noexcept + { + return std::numeric_limits::lowest(); + } + }; + + template + class integer_limits::value && is_int128_type::value>::type> + { + public: + static constexpr bool is_specialized = true; + static constexpr bool is_signed = true; + static constexpr int digits = sizeof(T)*CHAR_BIT - 1; + static constexpr std::size_t buffer_size = (sizeof(T)*CHAR_BIT*0.302) + 3; + + static constexpr T(max)() noexcept + { + return (((((T)1 << (digits - 1)) - 1) << 1) + 1); + } + static constexpr T(min)() noexcept + { + return -(max)() - 1; + } + static constexpr T lowest() noexcept + { + return (min)(); + } + }; + + template + class integer_limits::value && is_uint128_type::value>::type> + { + public: + static constexpr bool is_specialized = true; + static constexpr bool is_signed = false; + static constexpr int digits = sizeof(T)*CHAR_BIT; + + static constexpr T(max)() noexcept + { + return T(T(~0)); + } + static constexpr T(min)() noexcept + { + return 0; + } + static constexpr T lowest() noexcept + { + return std::numeric_limits::lowest(); + } + }; + + #ifndef JSONCONS_HAS_VOID_T + // follows https://en.cppreference.com/w/cpp/types/void_t + template struct make_void { typedef void type;}; + template using void_t = typename make_void::type; + #else + using void_t = std::void_t; + #endif + + // follows http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4436.pdf + + // detector + + // primary template handles all types not supporting the archetypal Op + template< + class Default, + class, // always void; supplied externally + template class Op, + class... Args + > + struct detector + { + constexpr static auto value = false; + using type = Default; + }; + + // specialization recognizes and handles only types supporting Op + template< + class Default, + template class Op, + class... Args + > + struct detector>, Op, Args...> + { + constexpr static auto value = true; + using type = Op; + }; + + // is_detected, is_detected_t + + template< template class Op, class... Args > + using + is_detected = detector; + + template< template class Op, class... Args > + using + is_detected_t = typename is_detected::type; + + // detected_or, detected_or_t + + template< class Default, template class Op, class... Args > + using + detected_or = detector; + + template< class Default, template class Op, class... Args > + using + detected_or_t = typename detected_or::type; + + // is_detected_exact + + template< class Expected, template class Op, class... Args > + using + is_detected_exact = std::is_same< Expected, is_detected_t >; + + // is_detected_convertible + + template< class To, template class Op, class... Args > + using + is_detected_convertible = std::is_convertible< is_detected_t, To >; + + template + struct is_stateless + : public std::integral_constant::value && + std::is_empty::value)> + {}; + + // to_plain_pointer + + template inline + typename std::pointer_traits::element_type* to_plain_pointer(Pointer ptr) + { + return (std::addressof(*ptr)); + } + + template inline + T * to_plain_pointer(T * ptr) + { + return (ptr); + } + + // is_std_byte + + template + struct is_std_byte : std::false_type {}; +#if defined(JSONCONS_HAS_STD_BYTE) + template + struct is_std_byte::value + >::type> : std::true_type {}; +#endif + // is_byte + + template + struct is_byte : std::false_type {}; + + template + struct is_byte::value || + std::is_same::value || + std::is_same::value || + is_std_byte::value + >::type> : std::true_type {}; + + // is_character + + template + struct is_character : std::false_type {}; + + template + struct is_character::value || + std::is_same::value + >::type> : std::true_type {}; + + // is_narrow_character + + template + struct is_narrow_character : std::false_type {}; + + template + struct is_narrow_character::value && (sizeof(T) == sizeof(char)) + >::type> : std::true_type {}; + + // is_wide_character + + template + struct is_wide_character : std::false_type {}; + + template + struct is_wide_character::value && (sizeof(T) != sizeof(char)) + >::type> : std::true_type {}; + + // From boost + namespace ut_detail { + + template + struct is_cstring_impl : public std::false_type {}; + + template + struct is_cstring_impl : public is_cstring_impl {}; + + template + struct is_cstring_impl : public is_cstring_impl {}; + + template<> + struct is_cstring_impl : public std::true_type {}; + + template<> + struct is_cstring_impl : public std::true_type {}; + + } // namespace ut_detail + + template + struct is_cstring : public ut_detail::is_cstring_impl::type> {}; + + // is_bool + + template + struct is_bool : std::false_type {}; + + template + struct is_bool::value + >::type> : std::true_type {}; + + // is_u8_u16_u32_or_u64 + + template + struct is_u8_u16_u32_or_u64 : std::false_type {}; + + template + struct is_u8_u16_u32_or_u64::value || + std::is_same::value || + std::is_same::value || + std::is_same::value + >::type> : std::true_type {}; + + // is_int + + template + struct is_i8_i16_i32_or_i64 : std::false_type {}; + + template + struct is_i8_i16_i32_or_i64::value || + std::is_same::value || + std::is_same::value || + std::is_same::value + >::type> : std::true_type {}; + + // is_float_or_double + + template + struct is_float_or_double : std::false_type {}; + + template + struct is_float_or_double::value || + std::is_same::value + >::type> : std::true_type {}; + + // make_unsigned + template + struct make_unsigned_impl {using type = typename std::make_unsigned::type;}; + + #if defined(JSONCONS_HAS_INT128) + template <> + struct make_unsigned_impl {using type = uint128_type;}; + template <> + struct make_unsigned_impl {using type = uint128_type;}; + #endif + + template + struct make_unsigned + : make_unsigned_impl::type> + {}; + + // is_integer + + template + struct is_integer : std::false_type {}; + + template + struct is_integer::is_specialized>::type> : std::true_type {}; + + // is_signed_integer + + template + struct is_signed_integer : std::false_type {}; + + template + struct is_signed_integer::is_specialized && + integer_limits::is_signed>::type> : std::true_type {}; + + // is_unsigned_integer + + template + struct is_unsigned_integer : std::false_type {}; + + template + struct is_unsigned_integer::is_specialized && + !integer_limits::is_signed>::type> : std::true_type {}; + + // is_primitive + + template + struct is_primitive : std::false_type {}; + + template + struct is_primitive::value || + is_bool::value || + std::is_floating_point::value + >::type> : std::true_type {}; + + // Containers + + template + using + container_npos_t = decltype(Container::npos); + + template + using + container_allocator_type_t = typename Container::allocator_type; + + template + using + container_mapped_type_t = typename Container::mapped_type; + + template + using + container_key_type_t = typename Container::key_type; + + template + using + container_value_type_t = typename std::iterator_traits::value_type; + + template + using + container_char_traits_t = typename Container::traits_type::char_type; + + template + using + container_push_back_t = decltype(std::declval().push_back(std::declval())); + + template + using + container_push_front_t = decltype(std::declval().push_front(std::declval())); + + template + using + container_insert_t = decltype(std::declval().insert(std::declval())); + + template + using + container_reserve_t = decltype(std::declval().reserve(typename Container::size_type())); + + template + using + container_data_t = decltype(std::declval().data()); + + template + using + container_size_t = decltype(std::declval().size()); + + // is_string_or_string_view + + template + struct is_string_or_string_view : std::false_type {}; + + template + struct is_string_or_string_view::value && + is_detected_exact::value && + is_detected::value + >::type> : std::true_type {}; + + // is_basic_string + + template + struct is_basic_string : std::false_type {}; + + template + struct is_basic_string::value && + is_detected::value + >::type> : std::true_type {}; + + // is_basic_string_view + + template + struct is_basic_string_view : std::false_type {}; + + template + struct is_basic_string_view::value && + !is_detected::value + >::type> : std::true_type {}; + + // is_map_like + + template + struct is_map_like : std::false_type {}; + + template + struct is_map_like::value && + is_detected::value && + is_detected::value && + is_detected::value + >::type> + : std::true_type {}; + + // is_std_array + template + struct is_std_array : std::false_type {}; + + template + struct is_std_array> : std::true_type {}; + + // is_list_like + + template + struct is_list_like : std::false_type {}; + + template + struct is_list_like::value && + is_detected::value && + !is_std_array::value && + !is_detected_exact::value && + !is_map_like::value + >::type> + : std::true_type {}; + + // is_constructible_from_const_pointer_and_size + + template + struct is_constructible_from_const_pointer_and_size : std::false_type {}; + + template + struct is_constructible_from_const_pointer_and_size::value + >::type> + : std::true_type {}; + + // has_reserve + + template + using + has_reserve = is_detected; + + // is_back_insertable + + template + using + is_back_insertable = is_detected; + + // is_front_insertable + + template + using + is_front_insertable = is_detected; + + // is_insertable + + template + using + is_insertable = is_detected; + + // has_data, has_data_exact + + template + using + has_data = is_detected; + + template + using + has_data_exact = is_detected_exact; + + // has_size + + template + using + has_size = is_detected; + + // has_data_and_size + + template + struct has_data_and_size + { + static constexpr bool value = has_data::value && has_size::value; + }; + + // is_byte_sequence + + template + struct is_byte_sequence : std::false_type {}; + + template + struct is_byte_sequence::value && + has_size::value && + is_byte::value + >::type> : std::true_type {}; + + // is_char_sequence + + template + struct is_char_sequence : std::false_type {}; + + template + struct is_char_sequence::value && + has_size::value && + is_character::value + >::type> : std::true_type {}; + + // is_sequence_of + + template + struct is_sequence_of : std::false_type {}; + + template + struct is_sequence_of::value && + has_size::value && + std::is_same::value + >::type> : std::true_type {}; + + // is_back_insertable_byte_container + + template + struct is_back_insertable_byte_container : std::false_type {}; + + template + struct is_back_insertable_byte_container::value && + is_byte::value + >::type> : std::true_type {}; + + // is_back_insertable_char_container + + template + struct is_back_insertable_char_container : std::false_type {}; + + template + struct is_back_insertable_char_container::value && + is_character::value + >::type> : std::true_type {}; + + // is_back_insertable_container_of + + template + struct is_back_insertable_container_of : std::false_type {}; + + template + struct is_back_insertable_container_of::value && + std::is_same::value + >::type> : std::true_type {}; + + // is_c_array + + template + struct is_c_array : std::false_type {}; + + template + struct is_c_array : std::true_type {}; + + template + struct is_c_array : std::true_type {}; + +namespace impl { + + template + struct is_typed_array : std::false_type {}; + + template + struct is_typed_array + < + T, + typename std::enable_if::value && + (std::is_same::type,uint8_t>::value || + std::is_same::type,uint16_t>::value || + std::is_same::type,uint32_t>::value || + std::is_same::type,uint64_t>::value || + std::is_same::type,int8_t>::value || + std::is_same::type,int16_t>::value || + std::is_same::type,int32_t>::value || + std::is_same::type,int64_t>::value || + std::is_same::type,float_t>::value || + std::is_same::type,double_t>::value)>::type + > : std::true_type{}; + +} // namespace impl + + template + using is_typed_array = impl::is_typed_array::type>; + + // is_compatible_element + + template + struct is_compatible_element : std::false_type {}; + + template + struct is_compatible_element + < + Container, Element, + typename std::enable_if::value>::type> + : std::is_convertible< typename std::remove_pointer().data() )>::type(*)[], Element(*)[]> + {}; + + template + using + construct_from_string_t = decltype(T(std::string{})); + + + template + using + is_constructible_from_string = is_detected; + + template + using + construct_from_data_size_t = decltype(T(static_cast(nullptr),Size{})); + + + template + using + is_constructible_from_data_size = is_detected; + + // is_unary_function_object + // is_unary_function_object_exact + + template + using + unary_function_object_t = decltype(std::declval()(std::declval())); + + template + using + is_unary_function_object = is_detected; + + template + using + is_unary_function_object_exact = is_detected_exact; + + // is_binary_function_object + // is_binary_function_object_exact + + template + using + binary_function_object_t = decltype(std::declval()(std::declval(),std::declval())); + + template + using + is_binary_function_object = is_detected; + + template + using + is_binary_function_object_exact = is_detected_exact; + + template + struct is_convertible_to_string_view : std::false_type {}; + + template + struct is_convertible_to_string_view::value || + is_cstring::value + >::type> : std::true_type {}; + + #if defined(JSONCONS_HAS_2017) + template + using is_nothrow_swappable = std::is_nothrow_swappable; + #else + template + struct is_nothrow_swappable { + static const bool value = noexcept(swap(std::declval(), std::declval())); + }; + #endif + + #if defined(JSONCONS_HAS_2014) + template + using alignment_of = std::alignment_of; + + template< class T, T... Ints > + using integer_sequence = std::integer_sequence; + + template + using index_sequence = std::index_sequence; + + template + using make_integer_sequence = std::make_integer_sequence; + + template + using make_index_sequence = std::make_index_sequence; + + template + using index_sequence_for = std::index_sequence_for; + + #else + template + struct alignment_of + : std::integral_constant::type)> {}; + + template + class integer_sequence + { + public: + using value_type = T; + static_assert(std::is_integral::value, "not integral type"); + static constexpr std::size_t size() noexcept + { + return sizeof...(Ints); + } + }; + + template + using index_sequence = integer_sequence; + namespace detail_ { + template + struct IntSeqImpl { + using TValue = T; + static_assert(std::is_integral::value, "not integral type"); + static_assert(Begin >= 0 && Begin < End, "unexpected argument (Begin<0 || Begin<=End)"); + + template + struct IntSeqCombiner; + + template + struct IntSeqCombiner, integer_sequence> { + using TResult = integer_sequence; + }; + + using TResult = + typename IntSeqCombiner::TResult, + typename IntSeqImpl::TResult>::TResult; + }; + + template + struct IntSeqImpl { + using TValue = T; + static_assert(std::is_integral::value, "not integral type"); + static_assert(Begin >= 0, "unexpected argument (Begin<0)"); + using TResult = integer_sequence; + }; + + template + struct IntSeqImpl { + using TValue = T; + static_assert(std::is_integral::value, "not integral type"); + static_assert(Begin >= 0, "unexpected argument (Begin<0)"); + using TResult = integer_sequence; + }; + } // namespace detail_ + + template + using make_integer_sequence = typename detail_::IntSeqImpl::TResult; + + template + using make_index_sequence = make_integer_sequence; + + template + using index_sequence_for = make_index_sequence; + + + #endif + +} // type_traits +} // jsoncons + +#endif diff --git a/include/jsoncons/pretty_print.hpp b/include/jsoncons/pretty_print.hpp new file mode 100644 index 0000000..599c1ce --- /dev/null +++ b/include/jsoncons/pretty_print.hpp @@ -0,0 +1,89 @@ +// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_PRETTY_PRINT_HPP +#define JSONCONS_PRETTY_PRINT_HPP + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +namespace jsoncons { + +template +class json_printable +{ +public: + using char_type = typename Json::char_type; + + json_printable(const Json& j, indenting line_indent) + : j_(&j), indenting_(line_indent) + { + } + + json_printable(const Json& j, + const basic_json_encode_options& options, + indenting line_indent) + : j_(&j), options_(options), indenting_(line_indent) + { + } + + void dump(std::basic_ostream& os) const + { + j_->dump(os, options_, indenting_); + } + + friend std::basic_ostream& operator<<(std::basic_ostream& os, const json_printable& pr) + { + pr.dump(os); + return os; + } + + const Json *j_; + basic_json_encode_options options_; + indenting indenting_; +private: + json_printable(); +}; + +template +json_printable print(const Json& j) +{ + return json_printable(j, indenting::no_indent); +} + +template +json_printable print(const Json& j, + const basic_json_encode_options& options) +{ + return json_printable(j, options, indenting::no_indent); +} + +template +json_printable pretty_print(const Json& j) +{ + return json_printable(j, indenting::indent); +} + +template +json_printable pretty_print(const Json& j, + const basic_json_encode_options& options) +{ + return json_printable(j, options, indenting::indent); +} + +} + +#endif diff --git a/include/jsoncons/ser_context.hpp b/include/jsoncons/ser_context.hpp new file mode 100644 index 0000000..f5b9d14 --- /dev/null +++ b/include/jsoncons/ser_context.hpp @@ -0,0 +1,57 @@ +/// Copyright 2013-2018 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_SER_CONTEXT_HPP +#define JSONCONS_SER_CONTEXT_HPP + +namespace jsoncons { + +class ser_context +{ +public: + virtual ~ser_context() noexcept = default; + + virtual size_t line() const + { + return 0; + } + + virtual size_t column() const + { + return 0; + } + + virtual size_t position() const + { + return 0; + } + +#if !defined(JSONCONS_NO_DEPRECATED) + JSONCONS_DEPRECATED_MSG("Instead, use line()") + std::size_t line_number() const + { + return line(); + } + + JSONCONS_DEPRECATED_MSG("Instead, use column()") + std::size_t column_number() const + { + return column(); + } +#endif +}; + +#if !defined(JSONCONS_NO_DEPRECATED) +JSONCONS_DEPRECATED_MSG("Instead, use ser_context") typedef ser_context null_ser_context; + +JSONCONS_DEPRECATED_MSG("Instead, use ser_context") typedef ser_context parsing_context; +JSONCONS_DEPRECATED_MSG("Instead, use ser_context") typedef ser_context serializing_context; +JSONCONS_DEPRECATED_MSG("Instead, use ser_context") typedef ser_context null_parsing_context; +JSONCONS_DEPRECATED_MSG("Instead, use ser_context") typedef ser_context null_serializing_context; +#endif + +} +#endif diff --git a/include/jsoncons/sink.hpp b/include/jsoncons/sink.hpp new file mode 100644 index 0000000..84771a3 --- /dev/null +++ b/include/jsoncons/sink.hpp @@ -0,0 +1,289 @@ +// Copyright 2018 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_SINK_HPP +#define JSONCONS_SINK_HPP + +#include +#include +#include +#include +#include +#include +#include // std::addressof +#include // std::memcpy +#include +#include + +namespace jsoncons { + + // stream_sink + + template + class stream_sink + { + public: + using value_type = CharT; + using container_type = std::basic_ostream; + + private: + static constexpr size_t default_buffer_length = 16384; + + std::basic_ostream* stream_ptr_; + std::vector buffer_; + CharT * begin_buffer_; + const CharT* end_buffer_; + CharT* p_; + + // Noncopyable + stream_sink(const stream_sink&) = delete; + stream_sink& operator=(const stream_sink&) = delete; + + public: + stream_sink(stream_sink&&) = default; + + stream_sink(std::basic_ostream& os) + : stream_ptr_(std::addressof(os)), buffer_(default_buffer_length), begin_buffer_(buffer_.data()), end_buffer_(begin_buffer_+buffer_.size()), p_(begin_buffer_) + { + } + stream_sink(std::basic_ostream& os, std::size_t buflen) + : stream_ptr_(std::addressof(os)), buffer_(buflen), begin_buffer_(buffer_.data()), end_buffer_(begin_buffer_+buffer_.size()), p_(begin_buffer_) + { + } + ~stream_sink() noexcept + { + stream_ptr_->write(begin_buffer_, buffer_length()); + stream_ptr_->flush(); + } + + // Movable + stream_sink& operator=(stream_sink&&) = default; + + void flush() + { + stream_ptr_->write(begin_buffer_, buffer_length()); + stream_ptr_->flush(); + p_ = buffer_.data(); + } + + void append(const CharT* s, std::size_t length) + { + std::size_t diff = end_buffer_ - p_; + if (diff >= length) + { + std::memcpy(p_, s, length*sizeof(CharT)); + p_ += length; + } + else + { + stream_ptr_->write(begin_buffer_, buffer_length()); + stream_ptr_->write(s,length); + p_ = begin_buffer_; + } + } + + void push_back(CharT ch) + { + if (p_ < end_buffer_) + { + *p_++ = ch; + } + else + { + stream_ptr_->write(begin_buffer_, buffer_length()); + p_ = begin_buffer_; + push_back(ch); + } + } + private: + + std::size_t buffer_length() const + { + return p_ - begin_buffer_; + } + }; + + // binary_stream_sink + + class binary_stream_sink + { + public: + typedef uint8_t value_type; + using container_type = std::basic_ostream; + private: + static constexpr size_t default_buffer_length = 16384; + + std::basic_ostream* stream_ptr_; + std::vector buffer_; + uint8_t * begin_buffer_; + const uint8_t* end_buffer_; + uint8_t* p_; + + // Noncopyable + binary_stream_sink(const binary_stream_sink&) = delete; + binary_stream_sink& operator=(const binary_stream_sink&) = delete; + + public: + binary_stream_sink(binary_stream_sink&&) = default; + + binary_stream_sink(std::basic_ostream& os) + : stream_ptr_(std::addressof(os)), + buffer_(default_buffer_length), + begin_buffer_(buffer_.data()), + end_buffer_(begin_buffer_+buffer_.size()), + p_(begin_buffer_) + { + } + binary_stream_sink(std::basic_ostream& os, std::size_t buflen) + : stream_ptr_(std::addressof(os)), + buffer_(buflen), + begin_buffer_(buffer_.data()), + end_buffer_(begin_buffer_+buffer_.size()), + p_(begin_buffer_) + { + } + ~binary_stream_sink() noexcept + { + stream_ptr_->write((char*)begin_buffer_, buffer_length()); + stream_ptr_->flush(); + } + + binary_stream_sink& operator=(binary_stream_sink&&) = default; + + void flush() + { + stream_ptr_->write((char*)begin_buffer_, buffer_length()); + p_ = buffer_.data(); + } + + void append(const uint8_t* s, std::size_t length) + { + std::size_t diff = end_buffer_ - p_; + if (diff >= length) + { + std::memcpy(p_, s, length*sizeof(uint8_t)); + p_ += length; + } + else + { + stream_ptr_->write((char*)begin_buffer_, buffer_length()); + stream_ptr_->write((const char*)s,length); + p_ = begin_buffer_; + } + } + + void push_back(uint8_t ch) + { + if (p_ < end_buffer_) + { + *p_++ = ch; + } + else + { + stream_ptr_->write((char*)begin_buffer_, buffer_length()); + p_ = begin_buffer_; + push_back(ch); + } + } + private: + + std::size_t buffer_length() const + { + return p_ - begin_buffer_; + } + }; + + // string_sink + + template + class string_sink + { + public: + using value_type = typename StringT::value_type; + using container_type = StringT; + private: + container_type* buf_ptr; + + // Noncopyable + string_sink(const string_sink&) = delete; + string_sink& operator=(const string_sink&) = delete; + public: + string_sink(string_sink&& val) noexcept + : buf_ptr(nullptr) + { + std::swap(buf_ptr,val.buf_ptr); + } + + string_sink(container_type& buf) + : buf_ptr(std::addressof(buf)) + { + } + + string_sink& operator=(string_sink&& val) noexcept + { + // TODO: Shouldn't val.buf_ptr be nullified? + // Also see move constructor above. + std::swap(buf_ptr,val.buf_ptr); + return *this; + } + + void flush() + { + } + + void append(const value_type* s, std::size_t length) + { + buf_ptr->insert(buf_ptr->end(), s, s+length); + } + + void push_back(value_type ch) + { + buf_ptr->push_back(ch); + } + }; + + // bytes_sink + + template + class bytes_sink + { + }; + + template + class bytes_sink::value>::type> + { + public: + using container_type = Container; + using value_type = typename Container::value_type; + private: + container_type* buf_ptr; + + // Noncopyable + bytes_sink(const bytes_sink&) = delete; + bytes_sink& operator=(const bytes_sink&) = delete; + public: + bytes_sink(bytes_sink&&) = default; + + bytes_sink(container_type& buf) + : buf_ptr(std::addressof(buf)) + { + } + + bytes_sink& operator=(bytes_sink&&) = default; + + void flush() + { + } + + void push_back(uint8_t ch) + { + buf_ptr->push_back(static_cast(ch)); + } + }; + +} // namespace jsoncons + +#endif diff --git a/include/jsoncons/source.hpp b/include/jsoncons/source.hpp new file mode 100644 index 0000000..e9c0735 --- /dev/null +++ b/include/jsoncons/source.hpp @@ -0,0 +1,777 @@ +// Copyright 2018 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_SOURCE_HPP +#define JSONCONS_SOURCE_HPP + +#include +#include +#include +#include +#include // std::addressof +#include // std::memcpy +#include +#include +#include // std::enable_if +#include +#include // jsoncons::byte_traits +#include + +namespace jsoncons { + + template + class basic_null_istream : public std::basic_istream + { + class null_buffer : public std::basic_streambuf + { + null_buffer(const null_buffer&) = delete; + null_buffer& operator=(const null_buffer&) = delete; + public: + using typename std::basic_streambuf::int_type; + using typename std::basic_streambuf::traits_type; + + null_buffer() = default; + null_buffer(null_buffer&&) = default; + null_buffer& operator=(null_buffer&&) = default; + + int_type overflow( int_type ch = typename std::basic_streambuf::traits_type::eof() ) override + { + return ch; + } + } nb_; + public: + basic_null_istream() + : std::basic_istream(&nb_) + { + } + + basic_null_istream(const null_buffer&) = delete; + basic_null_istream& operator=(const null_buffer&) = delete; + basic_null_istream(basic_null_istream&&) noexcept + : std::basic_istream(&nb_) + { + } + basic_null_istream& operator=(basic_null_istream&&) noexcept + { + return *this; + } + }; + + template + struct char_result + { + CharT value; + bool eof; + }; + + // text sources + + template + class stream_source + { + static constexpr std::size_t default_max_buffer_size = 16384; + public: + using value_type = CharT; + private: + using char_type = typename std::conditional::type; + basic_null_istream null_is_; + std::basic_istream* stream_ptr_; + std::basic_streambuf* sbuf_; + std::size_t position_; + std::vector buffer_; + const value_type* buffer_data_; + std::size_t buffer_length_; + + // Noncopyable + stream_source(const stream_source&) = delete; + stream_source& operator=(const stream_source&) = delete; + public: + stream_source() + : stream_ptr_(&null_is_), sbuf_(null_is_.rdbuf()), position_(0), + buffer_(1), buffer_data_(buffer_.data()), buffer_length_(0) + { + } + + stream_source(std::basic_istream& is, std::size_t buf_size = default_max_buffer_size) + : stream_ptr_(std::addressof(is)), sbuf_(is.rdbuf()), position_(0), + buffer_(buf_size), buffer_data_(buffer_.data()), buffer_length_(0) + { + } + + stream_source(stream_source&& other) noexcept + : stream_ptr_(&null_is_), sbuf_(null_is_.rdbuf()), position_(0), + buffer_(), buffer_data_(buffer_.data()), buffer_length_(0) + { + if (other.stream_ptr_ != &other.null_is_) + { + stream_ptr_ = other.stream_ptr_; + sbuf_ = other.sbuf_; + position_ = other.position_; + buffer_ = std::move(other.buffer_); + buffer_data_ = buffer_.data() + (other.buffer_data_ - other.buffer_.data()); + buffer_length_ = other.buffer_length_; + other = stream_source(); + } + } + + ~stream_source() + { + } + + stream_source& operator=(stream_source&& other) noexcept + { + if (other.stream_ptr_ != &other.null_is_) + { + stream_ptr_ = other.stream_ptr_; + sbuf_ = other.sbuf_; + position_ = other.position_; + buffer_ = std::move(other.buffer_); + buffer_data_ = buffer_.data() + (other.buffer_data_ - other.buffer_.data()); + buffer_length_ = other.buffer_length_; + other = stream_source(); + } + else + { + stream_ptr_ = &null_is_; + sbuf_ = null_is_.rdbuf(); + position_ = 0; + buffer_data_ = buffer_.data(); + buffer_length_ = 0; + } + return *this; + } + + bool eof() const + { + return buffer_length_ == 0 && stream_ptr_->eof(); + } + + bool is_error() const + { + return stream_ptr_->bad(); + } + + std::size_t position() const + { + return position_; + } + + void ignore(std::size_t length) + { + std::size_t len = 0; + if (buffer_length_ > 0) + { + len = (std::min)(buffer_length_, length); + position_ += len; + buffer_data_ += len; + buffer_length_ -= len; + } + while (length - len > 0) + { + fill_buffer(); + if (buffer_length_ == 0) + { + break; + } + std::size_t len2 = (std::min)(buffer_length_, length-len); + position_ += len2; + buffer_data_ += len2; + buffer_length_ -= len2; + len += len2; + } + } + + char_result peek() + { + if (buffer_length_ == 0) + { + fill_buffer(); + } + if (buffer_length_ > 0) + { + value_type c = *buffer_data_; + return char_result{c, false}; + } + else + { + return char_result{0, true}; + } + } + + span read_buffer() + { + if (buffer_length_ == 0) + { + fill_buffer(); + } + const value_type* data = buffer_data_; + std::size_t length = buffer_length_; + buffer_data_ += buffer_length_; + position_ += buffer_length_; + buffer_length_ = 0; + + return span(data, length); + } + + std::size_t read(value_type* p, std::size_t length) + { + std::size_t len = 0; + if (buffer_length_ > 0) + { + len = (std::min)(buffer_length_, length); + std::memcpy(p, buffer_data_, len*sizeof(value_type)); + buffer_data_ += len; + buffer_length_ -= len; + position_ += len; + } + if (length - len == 0) + { + return len; + } + else if (length - len < buffer_.size()) + { + fill_buffer(); + if (buffer_length_ > 0) + { + std::size_t len2 = (std::min)(buffer_length_, length-len); + std::memcpy(p+len, buffer_data_, len2*sizeof(value_type)); + buffer_data_ += len2; + buffer_length_ -= len2; + position_ += len2; + len += len2; + } + return len; + } + else + { + if (stream_ptr_->eof()) + { + buffer_length_ = 0; + return 0; + } + JSONCONS_TRY + { + std::streamsize count = sbuf_->sgetn(reinterpret_cast(p+len), length-len); + std::size_t len2 = static_cast(count); + if (len2 < length-len) + { + stream_ptr_->clear(stream_ptr_->rdstate() | std::ios::eofbit); + } + len += len2; + position_ += len2; + return len; + } + JSONCONS_CATCH(const std::exception&) + { + stream_ptr_->clear(stream_ptr_->rdstate() | std::ios::badbit | std::ios::eofbit); + return 0; + } + } + } + private: + void fill_buffer() + { + if (stream_ptr_->eof()) + { + buffer_length_ = 0; + return; + } + + buffer_data_ = buffer_.data(); + JSONCONS_TRY + { + std::streamsize count = sbuf_->sgetn(reinterpret_cast(buffer_.data()), buffer_.size()); + buffer_length_ = static_cast(count); + + if (buffer_length_ < buffer_.size()) + { + stream_ptr_->clear(stream_ptr_->rdstate() | std::ios::eofbit); + } + } + JSONCONS_CATCH(const std::exception&) + { + stream_ptr_->clear(stream_ptr_->rdstate() | std::ios::badbit | std::ios::eofbit); + buffer_length_ = 0; + } + } + }; + + // string_source + + template + class string_source + { + public: + using value_type = CharT; + using string_view_type = jsoncons::basic_string_view; + private: + const value_type* data_; + const value_type* current_; + const value_type* end_; + + // Noncopyable + string_source(const string_source&) = delete; + string_source& operator=(const string_source&) = delete; + public: + string_source() + : data_(nullptr), current_(nullptr), end_(nullptr) + { + } + + template + string_source(const Sourceable& s, + typename std::enable_if::value>::type* = 0) + : data_(s.data()), current_(s.data()), end_(s.data()+s.size()) + { + } + + string_source(const value_type* data) + : data_(data), current_(data), end_(data+std::char_traits::length(data)) + { + } + + string_source(string_source&& val) = default; + + string_source& operator=(string_source&& val) = default; + + bool eof() const + { + return current_ == end_; + } + + bool is_error() const + { + return false; + } + + std::size_t position() const + { + return (current_ - data_)/sizeof(value_type); + } + + void ignore(std::size_t count) + { + std::size_t len; + if ((std::size_t)(end_ - current_) < count) + { + len = end_ - current_; + } + else + { + len = count; + } + current_ += len; + } + + char_result peek() + { + return current_ < end_ ? char_result{*current_, false} : char_result{0, true}; + } + + span read_buffer() + { + const value_type* data = current_; + std::size_t length = end_ - current_; + current_ = end_; + + return span(data, length); + } + + std::size_t read(value_type* p, std::size_t length) + { + std::size_t len; + if ((std::size_t)(end_ - current_) < length) + { + len = end_ - current_; + } + else + { + len = length; + } + std::memcpy(p, current_, len*sizeof(value_type)); + current_ += len; + return len; + } + }; + + // iterator source + + template + class iterator_source + { + public: + using value_type = typename std::iterator_traits::value_type; + private: + static constexpr std::size_t default_max_buffer_size = 16384; + + IteratorT current_; + IteratorT end_; + std::size_t position_; + std::vector buffer_; + std::size_t buffer_length_; + + using difference_type = typename std::iterator_traits::difference_type; + using iterator_category = typename std::iterator_traits::iterator_category; + + // Noncopyable + iterator_source(const iterator_source&) = delete; + iterator_source& operator=(const iterator_source&) = delete; + public: + + iterator_source(const IteratorT& first, const IteratorT& last, std::size_t buf_size = default_max_buffer_size) + : current_(first), end_(last), position_(0), buffer_(buf_size), buffer_length_(0) + { + } + + iterator_source(iterator_source&& other) = default; + + iterator_source& operator=(iterator_source&& other) = default; + + bool eof() const + { + return !(current_ != end_); + } + + bool is_error() const + { + return false; + } + + std::size_t position() const + { + return position_; + } + + void ignore(std::size_t count) + { + while (count-- > 0 && current_ != end_) + { + ++position_; + ++current_; + } + } + + char_result peek() + { + return current_ != end_ ? char_result{*current_, false} : char_result{0, true}; + } + + span read_buffer() + { + if (buffer_length_ == 0) + { + buffer_length_ = read(buffer_.data(), buffer_.size()); + } + std::size_t length = buffer_length_; + buffer_length_ = 0; + + return span(buffer_.data(), length); + } + + template + typename std::enable_if::value, std::size_t>::type + read(value_type* data, std::size_t length) + { + std::size_t count = (std::min)(length, static_cast(std::distance(current_, end_))); + + JSONCONS_COPY(current_, current_ + count, data); + current_ += count; + position_ += count; + + return count; + } + + template + typename std::enable_if::value, std::size_t>::type + read(value_type* data, std::size_t length) + { + value_type* p = data; + value_type* pend = data + length; + + while (p < pend && current_ != end_) + { + *p = static_cast(*current_); + ++p; + ++current_; + } + + position_ += (p - data); + + return p - data; + } + }; + + // binary sources + + using binary_stream_source = stream_source; + + class bytes_source + { + public: + typedef uint8_t value_type; + private: + const value_type* data_; + const value_type* current_; + const value_type* end_; + + // Noncopyable + bytes_source(const bytes_source&) = delete; + bytes_source& operator=(const bytes_source&) = delete; + public: + bytes_source() + : data_(nullptr), current_(nullptr), end_(nullptr) + { + } + + template + bytes_source(const Sourceable& source, + typename std::enable_if::value,int>::type = 0) + : data_(reinterpret_cast(source.data())), + current_(data_), + end_(data_+source.size()) + { + } + + bytes_source(bytes_source&&) = default; + + bytes_source& operator=(bytes_source&&) = default; + + bool eof() const + { + return current_ == end_; + } + + bool is_error() const + { + return false; + } + + std::size_t position() const + { + return current_ - data_; + } + + void ignore(std::size_t count) + { + std::size_t len; + if ((std::size_t)(end_ - current_) < count) + { + len = end_ - current_; + } + else + { + len = count; + } + current_ += len; + } + + char_result peek() + { + return current_ < end_ ? char_result{*current_, false} : char_result{0, true}; + } + + span read_buffer() + { + const value_type* data = current_; + std::size_t length = end_ - current_; + current_ = end_; + + return span(data, length); + } + + std::size_t read(value_type* p, std::size_t length) + { + std::size_t len; + if ((std::size_t)(end_ - current_) < length) + { + len = end_ - current_; + } + else + { + len = length; + } + std::memcpy(p, current_, len*sizeof(value_type)); + current_ += len; + return len; + } + }; + + // binary_iterator source + + template + class binary_iterator_source + { + public: + using value_type = uint8_t; + private: + static constexpr std::size_t default_max_buffer_size = 16384; + + IteratorT current_; + IteratorT end_; + std::size_t position_; + std::vector buffer_; + std::size_t buffer_length_; + + using difference_type = typename std::iterator_traits::difference_type; + using iterator_category = typename std::iterator_traits::iterator_category; + + // Noncopyable + binary_iterator_source(const binary_iterator_source&) = delete; + binary_iterator_source& operator=(const binary_iterator_source&) = delete; + public: + binary_iterator_source(const IteratorT& first, const IteratorT& last, std::size_t buf_size = default_max_buffer_size) + : current_(first), end_(last), position_(0), buffer_(buf_size), buffer_length_(0) + { + } + + binary_iterator_source(binary_iterator_source&& other) = default; + + binary_iterator_source& operator=(binary_iterator_source&& other) = default; + + bool eof() const + { + return !(current_ != end_); + } + + bool is_error() const + { + return false; + } + + std::size_t position() const + { + return position_; + } + + void ignore(std::size_t count) + { + while (count-- > 0 && current_ != end_) + { + ++position_; + ++current_; + } + } + + char_result peek() + { + return current_ != end_ ? char_result{static_cast(*current_), false} : char_result{0, true}; + } + + span read_buffer() + { + if (buffer_length_ == 0) + { + buffer_length_ = read(buffer_.data(), buffer_.size()); + } + std::size_t length = buffer_length_; + buffer_length_ = 0; + + return span(buffer_.data(), length); + } + + template + typename std::enable_if::value, std::size_t>::type + read(value_type* data, std::size_t length) + { + std::size_t count = (std::min)(length, static_cast(std::distance(current_, end_))); + JSONCONS_COPY(current_, current_ + count, data); + current_ += count; + position_ += count; + + return count; + } + + template + typename std::enable_if::value, std::size_t>::type + read(value_type* data, std::size_t length) + { + value_type* p = data; + value_type* pend = data + length; + + while (p < pend && current_ != end_) + { + *p = static_cast(*current_); + ++p; + ++current_; + } + + position_ += (p - data); + + return p - data; + } + }; + + template + struct source_reader + { + using value_type = typename Source::value_type; + static constexpr std::size_t max_buffer_length = 16384; + + template + static + typename std::enable_if::value && + type_traits::has_reserve::value && + type_traits::has_data_exact::value + , std::size_t>::type + read(Source& source, Container& v, std::size_t length) + { + std::size_t unread = length; + + std::size_t n = (std::min)(max_buffer_length, unread); + while (n > 0 && !source.eof()) + { + std::size_t offset = v.size(); + v.resize(v.size()+n); + std::size_t actual = source.read(v.data()+offset, n); + unread -= actual; + n = (std::min)(max_buffer_length, unread); + } + + return length - unread; + } + + template + static + typename std::enable_if::value && + type_traits::has_reserve::value && + !type_traits::has_data_exact::value + , std::size_t>::type + read(Source& source, Container& v, std::size_t length) + { + std::size_t unread = length; + + std::size_t n = (std::min)(max_buffer_length, unread); + while (n > 0 && !source.eof()) + { + v.reserve(v.size()+n); + std::size_t actual = 0; + while (actual < n) + { + typename Source::value_type c; + if (source.read(&c,1) != 1) + { + break; + } + v.push_back(c); + ++actual; + } + unread -= actual; + n = (std::min)(max_buffer_length, unread); + } + + return length - unread; + } + }; + template + constexpr std::size_t source_reader::max_buffer_length; + + #if !defined(JSONCONS_NO_DEPRECATED) + using bin_stream_source = binary_stream_source; + #endif + +} // namespace jsoncons + +#endif diff --git a/include/jsoncons/source_adaptor.hpp b/include/jsoncons/source_adaptor.hpp new file mode 100644 index 0000000..51c74a3 --- /dev/null +++ b/include/jsoncons/source_adaptor.hpp @@ -0,0 +1,148 @@ +// Copyright 2021 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_BUFFER_READER_HPP +#define JSONCONS_BUFFER_READER_HPP + +#include +#include +#include +#include +#include +#include // std::allocator_traits +#include // std::vector +#include +#include // json_errc +#include +#include + +namespace jsoncons { + + // text_source_adaptor + + template + class text_source_adaptor + { + public: + using value_type = typename Source::value_type; + private: + Source source_; + bool bof_; + + public: + text_source_adaptor() + : bof_(true) + { + } + + template + text_source_adaptor(Sourceable&& source) + : source_(std::forward(source)), bof_(true) + { + } + + bool eof() const + { + return source_.eof(); + } + + bool is_error() const + { + return source_.is_error(); + } + + span read_buffer(std::error_code& ec) + { + if (source_.eof()) + { + return span(); + } + + auto s = source_.read_buffer(); + const value_type* data = s.data(); + std::size_t length = s.size(); + + if (bof_ && length > 0) + { + auto r = unicode_traits::detect_encoding_from_bom(data, length); + if (!(r.encoding == unicode_traits::encoding_kind::utf8 || r.encoding == unicode_traits::encoding_kind::undetected)) + { + ec = json_errc::illegal_unicode_character; + return span(); + } + length -= (r.ptr - data); + data = r.ptr; + bof_ = false; + } + return span(data, length); + } + }; + + // json_source_adaptor + + template + class json_source_adaptor + { + public: + using value_type = typename Source::value_type; + private: + Source source_; + bool bof_; + + public: + json_source_adaptor() + : bof_(true) + { + } + + template + json_source_adaptor(Sourceable&& source) + : source_(std::forward(source)), bof_(true) + { + } + + bool eof() const + { + return source_.eof(); + } + + bool is_error() const + { + return source_.is_error(); + } + + span read_buffer(std::error_code& ec) + { + if (source_.eof()) + { + return span(); + } + + auto s = source_.read_buffer(); + const value_type* data = s.data(); + std::size_t length = s.size(); + + if (bof_ && length > 0) + { + auto r = unicode_traits::detect_json_encoding(data, length); + if (!(r.encoding == unicode_traits::encoding_kind::utf8 || r.encoding == unicode_traits::encoding_kind::undetected)) + { + ec = json_errc::illegal_unicode_character; + return span(); + } + length -= (r.ptr - data); + data = r.ptr; + bof_ = false; + } + + return span(data, length); + } + }; + +} // namespace jsoncons + +#endif + diff --git a/include/jsoncons/staj2_cursor.hpp b/include/jsoncons/staj2_cursor.hpp new file mode 100644 index 0000000..4cbbc2f --- /dev/null +++ b/include/jsoncons/staj2_cursor.hpp @@ -0,0 +1,1178 @@ +// Copyright 2018 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_STAJ2_CURSOR_HPP +#define JSONCONS_STAJ2_CURSOR_HPP + +#include // std::allocator +#include +#include +#include +#include +#include // std::enable_if +#include // std::array +#include // std::function +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +namespace jsoncons { + + enum class staj2_event_type + { + begin_array, + end_array, + begin_object, + end_object, + string_value, + byte_string_value, + null_value, + bool_value, + int64_value, + uint64_value, + half_value, + double_value + }; + + template + std::basic_ostream& operator<<(std::basic_ostream& os, staj2_event_type tag) + { + static constexpr const CharT* begin_array_name = JSONCONS_CSTRING_CONSTANT(CharT, "begin_array"); + static constexpr const CharT* end_array_name = JSONCONS_CSTRING_CONSTANT(CharT, "end_array"); + static constexpr const CharT* begin_object_name = JSONCONS_CSTRING_CONSTANT(CharT, "begin_object"); + static constexpr const CharT* end_object_name = JSONCONS_CSTRING_CONSTANT(CharT, "end_object"); + static constexpr const CharT* string_value_name = JSONCONS_CSTRING_CONSTANT(CharT, "string_value"); + static constexpr const CharT* byte_string_value_name = JSONCONS_CSTRING_CONSTANT(CharT, "byte_string_value"); + static constexpr const CharT* null_value_name = JSONCONS_CSTRING_CONSTANT(CharT, "null_value"); + static constexpr const CharT* bool_value_name = JSONCONS_CSTRING_CONSTANT(CharT, "bool_value"); + static constexpr const CharT* uint64_value_name = JSONCONS_CSTRING_CONSTANT(CharT, "uint64_value"); + static constexpr const CharT* int64_value_name = JSONCONS_CSTRING_CONSTANT(CharT, "int64_value"); + static constexpr const CharT* half_value_name = JSONCONS_CSTRING_CONSTANT(CharT, "half_value"); + static constexpr const CharT* double_value_name = JSONCONS_CSTRING_CONSTANT(CharT, "double_value"); + + switch (tag) + { + case staj2_event_type::begin_array: + { + os << begin_array_name; + break; + } + case staj2_event_type::end_array: + { + os << end_array_name; + break; + } + case staj2_event_type::begin_object: + { + os << begin_object_name; + break; + } + case staj2_event_type::end_object: + { + os << end_object_name; + break; + } + case staj2_event_type::string_value: + { + os << string_value_name; + break; + } + case staj2_event_type::byte_string_value: + { + os << byte_string_value_name; + break; + } + case staj2_event_type::null_value: + { + os << null_value_name; + break; + } + case staj2_event_type::bool_value: + { + os << bool_value_name; + break; + } + case staj2_event_type::int64_value: + { + os << int64_value_name; + break; + } + case staj2_event_type::uint64_value: + { + os << uint64_value_name; + break; + } + case staj2_event_type::half_value: + { + os << half_value_name; + break; + } + case staj2_event_type::double_value: + { + os << double_value_name; + break; + } + } + return os; + } + + template + class basic_staj2_event + { + staj2_event_type event_type_; + semantic_tag tag_; + uint64_t ext_tag_; + union + { + bool bool_value_; + int64_t int64_value_; + uint64_t uint64_value_; + uint16_t half_value_; + double double_value_; + const CharT* string_data_; + const uint8_t* byte_string_data_; + } value_; + std::size_t length_; + public: + using string_view_type = jsoncons::basic_string_view; + + basic_staj2_event(staj2_event_type event_type, semantic_tag tag = semantic_tag::none) + : event_type_(event_type), tag_(tag), ext_tag_(0), value_(), length_(0) + { + } + + basic_staj2_event(staj2_event_type event_type, std::size_t length, semantic_tag tag = semantic_tag::none) + : event_type_(event_type), tag_(tag), ext_tag_(0), value_(), length_(length) + { + } + + basic_staj2_event(null_type, semantic_tag tag) + : event_type_(staj2_event_type::null_value), tag_(tag), ext_tag_(0), value_(), length_(0) + { + } + + basic_staj2_event(bool value, semantic_tag tag) + : event_type_(staj2_event_type::bool_value), tag_(tag), ext_tag_(0), length_(0) + { + value_.bool_value_ = value; + } + + basic_staj2_event(int64_t value, semantic_tag tag) + : event_type_(staj2_event_type::int64_value), tag_(tag), ext_tag_(0), length_(0) + { + value_.int64_value_ = value; + } + + basic_staj2_event(uint64_t value, semantic_tag tag) + : event_type_(staj2_event_type::uint64_value), tag_(tag), ext_tag_(0), length_(0) + { + value_.uint64_value_ = value; + } + + basic_staj2_event(half_arg_t, uint16_t value, semantic_tag tag) + : event_type_(staj2_event_type::half_value), tag_(tag), ext_tag_(0), length_(0) + { + value_.half_value_ = value; + } + + basic_staj2_event(double value, semantic_tag tag) + : event_type_(staj2_event_type::double_value), tag_(tag), ext_tag_(0), length_(0) + { + value_.double_value_ = value; + } + + basic_staj2_event(const string_view_type& s, + staj2_event_type event_type, + semantic_tag tag = semantic_tag::none) + : event_type_(event_type), tag_(tag), ext_tag_(0), length_(s.length()) + { + value_.string_data_ = s.data(); + } + + basic_staj2_event(const byte_string_view& s, + staj2_event_type event_type, + semantic_tag tag = semantic_tag::none) + : event_type_(event_type), tag_(tag), ext_tag_(0), length_(s.size()) + { + value_.byte_string_data_ = s.data(); + } + + basic_staj2_event(const byte_string_view& s, + staj2_event_type event_type, + uint64_t ext_tag) + : event_type_(event_type), tag_(semantic_tag::ext), ext_tag_(ext_tag), length_(s.size()) + { + value_.byte_string_data_ = s.data(); + } + + std::size_t size() const + { + return length_; + } + + template + T get() const + { + std::error_code ec; + T val = get(ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec)); + } + return val; + } + + template + typename std::enable_if::value && std::is_same::value, T>::type + get(std::error_code& ec) const + { + converter conv; + switch (event_type_) + { + case staj2_event_type::string_value: + return conv.from(jsoncons::basic_string_view(value_.string_data_, length_), tag(), ec); + case staj2_event_type::byte_string_value: + { + return conv.from(byte_string_view(value_.byte_string_data_,length_), + tag(), + ec); + } + case staj2_event_type::uint64_value: + { + return conv.from(value_.uint64_value_, tag(), ec); + } + case staj2_event_type::int64_value: + { + return conv.from(value_.int64_value_, tag(), ec); + } + case staj2_event_type::half_value: + { + return conv.from(half_arg, value_.half_value_, tag(), ec); + } + case staj2_event_type::double_value: + { + return conv.from(value_.double_value_, tag(), ec); + } + case staj2_event_type::bool_value: + { + return conv.from(value_.bool_value_,tag(),ec); + } + case staj2_event_type::null_value: + { + return conv.from(null_type(),tag(),ec); + } + default: + { + ec = conv_errc::not_string; + return T{}; + } + } + } + + template + typename std::enable_if::value && std::is_same::value, T>::type + get(std::error_code& ec) const + { + T s; + switch (event_type_) + { + case staj2_event_type::string_value: + s = T(value_.string_data_, length_); + break; + default: + ec = conv_errc::not_string_view; + break; + } + return s; + } + + template + typename std::enable_if::value, T>::type + get(std::error_code& ec) const + { + T s; + switch (event_type_) + { + case staj2_event_type::byte_string_value: + s = T(value_.byte_string_data_, length_); + break; + default: + ec = conv_errc::not_byte_string_view; + break; + } + return s; + } + + template + typename std::enable_if::value && + std::is_same::value,T>::type + get(std::error_code& ec) const + { + converter conv; + switch (event_type_) + { + case staj2_event_type::byte_string_value: + return conv.from(byte_string_view(value_.byte_string_data_, length_), tag(), ec); + case staj2_event_type::string_value: + return conv.from(jsoncons::basic_string_view(value_.string_data_, length_), tag(), ec); + default: + ec = conv_errc::not_byte_string; + return T{}; + } + } + + template + typename std::enable_if::value, IntegerType>::type + get(std::error_code& ec) const + { + switch (event_type_) + { + case staj2_event_type::string_value: + { + IntegerType val; + auto result = jsoncons::detail::to_integer(value_.string_data_, length_, val); + if (!result) + { + ec = conv_errc::not_integer; + return IntegerType(); + } + return val; + } + case staj2_event_type::half_value: + return static_cast(value_.half_value_); + case staj2_event_type::double_value: + return static_cast(value_.double_value_); + case staj2_event_type::int64_value: + return static_cast(value_.int64_value_); + case staj2_event_type::uint64_value: + return static_cast(value_.uint64_value_); + case staj2_event_type::bool_value: + return static_cast(value_.bool_value_ ? 1 : 0); + default: + ec = conv_errc::not_integer; + return IntegerType(); + } + } + + template + typename std::enable_if::value, T>::type + get(std::error_code& ec) const + { + return static_cast(as_double(ec)); + } + + template + typename std::enable_if::value, T>::type + get(std::error_code& ec) const + { + return as_bool(ec); + } + + staj2_event_type event_type() const noexcept { return event_type_; } + + semantic_tag tag() const noexcept { return tag_; } + + uint64_t ext_tag() const noexcept { return ext_tag_; } + + private: + + double as_double(std::error_code& ec) const + { + switch (event_type_) + { + case staj2_event_type::string_value: + { + jsoncons::detail::chars_to f; + return f(value_.string_data_, length_); + } + case staj2_event_type::double_value: + return value_.double_value_; + case staj2_event_type::int64_value: + return static_cast(value_.int64_value_); + case staj2_event_type::uint64_value: + return static_cast(value_.uint64_value_); + case staj2_event_type::half_value: + { + double x = binary::decode_half(value_.half_value_); + return static_cast(x); + } + default: + ec = conv_errc::not_double; + return double(); + } + } + + bool as_bool(std::error_code& ec) const + { + switch (event_type_) + { + case staj2_event_type::bool_value: + return value_.bool_value_; + case staj2_event_type::double_value: + return value_.double_value_ != 0.0; + case staj2_event_type::int64_value: + return value_.int64_value_ != 0; + case staj2_event_type::uint64_value: + return value_.uint64_value_ != 0; + default: + ec = conv_errc::not_bool; + return bool(); + } + } + }; + + // basic_staj2_visitor + + enum class staj2_cursor_state + { + typed_array = 1, + multi_dim, + shape + }; + + template + class basic_staj2_visitor : public basic_json_visitor2 + { + using super_type = basic_json_visitor2; + public: + using char_type = CharT; + using typename super_type::string_view_type; + private: + std::function&, const ser_context&)> pred_; + basic_staj2_event event_; + + staj2_cursor_state state_; + typed_array_view data_; + jsoncons::span shape_; + std::size_t index_; + public: + basic_staj2_visitor() + : pred_(accept), event_(staj2_event_type::null_value), + state_(), data_(), shape_(), index_(0) + { + } + + basic_staj2_visitor(std::function&, const ser_context&)> pred) + : pred_(pred), event_(staj2_event_type::null_value), + state_(), data_(), shape_(), index_(0) + { + } + + void reset() + { + event_ = staj2_event_type::null_value; + state_ = {}; + data_ = {}; + shape_ = {}; + index_ = 0; + } + + const basic_staj2_event& event() const + { + return event_; + } + + bool in_available() const + { + return state_ != staj2_cursor_state(); + } + + void send_available(std::error_code& ec) + { + switch (state_) + { + case staj2_cursor_state::typed_array: + advance_typed_array(ec); + break; + case staj2_cursor_state::multi_dim: + case staj2_cursor_state::shape: + advance_multi_dim(ec); + break; + default: + break; + } + } + + bool is_typed_array() const + { + return data_.type() != typed_array_type(); + } + + staj2_cursor_state state() const + { + return state_; + } + + void advance_typed_array(std::error_code& ec) + { + if (is_typed_array()) + { + if (index_ < data_.size()) + { + switch (data_.type()) + { + case typed_array_type::uint8_value: + { + this->uint64_value(data_.data(uint8_array_arg)[index_], semantic_tag::none, ser_context(), ec); + break; + } + case typed_array_type::uint16_value: + { + this->uint64_value(data_.data(uint16_array_arg)[index_], semantic_tag::none, ser_context(), ec); + break; + } + case typed_array_type::uint32_value: + { + this->uint64_value(data_.data(uint32_array_arg)[index_], semantic_tag::none, ser_context(), ec); + break; + } + case typed_array_type::uint64_value: + { + this->uint64_value(data_.data(uint64_array_arg)[index_], semantic_tag::none, ser_context(), ec); + break; + } + case typed_array_type::int8_value: + { + this->int64_value(data_.data(int8_array_arg)[index_], semantic_tag::none, ser_context(), ec); + break; + } + case typed_array_type::int16_value: + { + this->int64_value(data_.data(int16_array_arg)[index_], semantic_tag::none, ser_context(), ec); + break; + } + case typed_array_type::int32_value: + { + this->int64_value(data_.data(int32_array_arg)[index_], semantic_tag::none, ser_context(), ec); + break; + } + case typed_array_type::int64_value: + { + this->int64_value(data_.data(int64_array_arg)[index_], semantic_tag::none, ser_context(), ec); + break; + } + case typed_array_type::half_value: + { + this->half_value(data_.data(half_array_arg)[index_], semantic_tag::none, ser_context(), ec); + break; + } + case typed_array_type::float_value: + { + this->double_value(data_.data(float_array_arg)[index_], semantic_tag::none, ser_context(), ec); + break; + } + case typed_array_type::double_value: + { + this->double_value(data_.data(double_array_arg)[index_], semantic_tag::none, ser_context(), ec); + break; + } + default: + break; + } + ++index_; + } + else + { + this->end_array(); + state_ = staj2_cursor_state(); + data_ = typed_array_view(); + index_ = 0; + } + } + } + + void advance_multi_dim(std::error_code& ec) + { + if (shape_.size() != 0) + { + if (state_ == staj2_cursor_state::multi_dim) + { + this->begin_array(shape_.size(), semantic_tag::none, ser_context(), ec); + state_ = staj2_cursor_state::shape; + } + else if (index_ < shape_.size()) + { + this->uint64_value(shape_[index_], semantic_tag::none, ser_context(), ec); + ++index_; + } + else + { + state_ = staj2_cursor_state(); + this->end_array(ser_context(), ec); + shape_ = jsoncons::span(); + index_ = 0; + } + } + } + + bool dump(basic_json_visitor2& visitor, const ser_context& context, std::error_code& ec) + { + bool more = true; + if (is_typed_array()) + { + if (index_ != 0) + { + more = staj2_to_saj_event(event(), visitor, context, ec); + while (more && is_typed_array()) + { + if (index_ < data_.size()) + { + switch (data_.type()) + { + case typed_array_type::uint8_value: + { + more = visitor.uint64_value(data_.data(uint8_array_arg)[index_]); + break; + } + case typed_array_type::uint16_value: + { + more = visitor.uint64_value(data_.data(uint16_array_arg)[index_]); + break; + } + case typed_array_type::uint32_value: + { + more = visitor.uint64_value(data_.data(uint32_array_arg)[index_]); + break; + } + case typed_array_type::uint64_value: + { + more = visitor.uint64_value(data_.data(uint64_array_arg)[index_]); + break; + } + case typed_array_type::int8_value: + { + more = visitor.int64_value(data_.data(int8_array_arg)[index_]); + break; + } + case typed_array_type::int16_value: + { + more = visitor.int64_value(data_.data(int16_array_arg)[index_]); + break; + } + case typed_array_type::int32_value: + { + more = visitor.int64_value(data_.data(int32_array_arg)[index_]); + break; + } + case typed_array_type::int64_value: + { + more = visitor.int64_value(data_.data(int64_array_arg)[index_]); + break; + } + case typed_array_type::float_value: + { + more = visitor.double_value(data_.data(float_array_arg)[index_]); + break; + } + case typed_array_type::double_value: + { + more = visitor.double_value(data_.data(double_array_arg)[index_]); + break; + } + default: + break; + } + ++index_; + } + else + { + more = visitor.end_array(); + state_ = staj2_cursor_state(); + data_ = typed_array_view(); + index_ = 0; + } + } + } + else + { + switch (data_.type()) + { + case typed_array_type::uint8_value: + { + more = visitor.typed_array(data_.data(uint8_array_arg)); + break; + } + case typed_array_type::uint16_value: + { + more = visitor.typed_array(data_.data(uint16_array_arg)); + break; + } + case typed_array_type::uint32_value: + { + more = visitor.typed_array(data_.data(uint32_array_arg)); + break; + } + case typed_array_type::uint64_value: + { + more = visitor.typed_array(data_.data(uint64_array_arg)); + break; + } + case typed_array_type::int8_value: + { + more = visitor.typed_array(data_.data(int8_array_arg)); + break; + } + case typed_array_type::int16_value: + { + more = visitor.typed_array(data_.data(int16_array_arg)); + break; + } + case typed_array_type::int32_value: + { + more = visitor.typed_array(data_.data(int32_array_arg)); + break; + } + case typed_array_type::int64_value: + { + more = visitor.typed_array(data_.data(int64_array_arg)); + break; + } + case typed_array_type::float_value: + { + more = visitor.typed_array(data_.data(float_array_arg)); + break; + } + case typed_array_type::double_value: + { + more = visitor.typed_array(data_.data(double_array_arg)); + break; + } + default: + break; + } + + state_ = staj2_cursor_state(); + data_ = typed_array_view(); + } + } + else + { + more = staj2_to_saj_event(event(), visitor, context, ec); + } + return more; + } + + private: + static constexpr bool accept(const basic_staj2_event&, const ser_context&) + { + return true; + } + + bool visit_begin_object(semantic_tag tag, const ser_context& context, std::error_code&) override + { + event_ = basic_staj2_event(staj2_event_type::begin_object, tag); + return !pred_(event_, context); + } + + bool visit_begin_object(std::size_t length, semantic_tag tag, const ser_context& context, std::error_code&) override + { + event_ = basic_staj2_event(staj2_event_type::begin_object, length, tag); + return !pred_(event_, context); + } + + bool visit_end_object(const ser_context& context, std::error_code&) override + { + event_ = basic_staj2_event(staj2_event_type::end_object); + return !pred_(event_, context); + } + + bool visit_begin_array(semantic_tag tag, const ser_context& context, std::error_code&) override + { + event_ = basic_staj2_event(staj2_event_type::begin_array, tag); + return !pred_(event_, context); + } + + bool visit_begin_array(std::size_t length, semantic_tag tag, const ser_context& context, std::error_code&) override + { + event_ = basic_staj2_event(staj2_event_type::begin_array, length, tag); + return !pred_(event_, context); + } + + bool visit_end_array(const ser_context& context, std::error_code&) override + { + event_ = basic_staj2_event(staj2_event_type::end_array); + return !pred_(event_, context); + } + + bool visit_null(semantic_tag tag, const ser_context& context, std::error_code&) override + { + event_ = basic_staj2_event(staj2_event_type::null_value, tag); + return !pred_(event_, context); + } + + bool visit_bool(bool value, semantic_tag tag, const ser_context& context, std::error_code&) override + { + event_ = basic_staj2_event(value, tag); + return !pred_(event_, context); + } + + bool visit_string(const string_view_type& s, semantic_tag tag, const ser_context& context, std::error_code&) override + { + event_ = basic_staj2_event(s, staj2_event_type::string_value, tag); + return !pred_(event_, context); + } + + bool visit_byte_string(const byte_string_view& s, + semantic_tag tag, + const ser_context& context, + std::error_code&) override + { + event_ = basic_staj2_event(s, staj2_event_type::byte_string_value, tag); + return !pred_(event_, context); + } + + bool visit_byte_string(const byte_string_view& s, + uint64_t ext_tag, + const ser_context& context, + std::error_code&) override + { + event_ = basic_staj2_event(s, staj2_event_type::byte_string_value, ext_tag); + return !pred_(event_, context); + } + + bool visit_uint64(uint64_t value, + semantic_tag tag, + const ser_context& context, + std::error_code&) override + { + event_ = basic_staj2_event(value, tag); + return !pred_(event_, context); + } + + bool visit_int64(int64_t value, + semantic_tag tag, + const ser_context& context, + std::error_code&) override + { + event_ = basic_staj2_event(value, tag); + return !pred_(event_, context); + } + + bool visit_half(uint16_t value, + semantic_tag tag, + const ser_context& context, + std::error_code&) override + { + event_ = basic_staj2_event(half_arg, value, tag); + return !pred_(event_, context); + } + + bool visit_double(double value, + semantic_tag tag, + const ser_context& context, + std::error_code&) override + { + event_ = basic_staj2_event(value, tag); + return !pred_(event_, context); + } + + bool visit_typed_array(const jsoncons::span& v, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + state_ = staj2_cursor_state::typed_array; + data_ = typed_array_view(v.data(), v.size()); + index_ = 0; + return this->begin_array(tag, context, ec); + } + + bool visit_typed_array(const jsoncons::span& data, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + state_ = staj2_cursor_state::typed_array; + data_ = typed_array_view(data.data(), data.size()); + index_ = 0; + return this->begin_array(tag, context, ec); + } + + bool visit_typed_array(const jsoncons::span& data, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + state_ = staj2_cursor_state::typed_array; + data_ = typed_array_view(data.data(), data.size()); + index_ = 0; + return this->begin_array(tag, context, ec); + } + + bool visit_typed_array(const jsoncons::span& data, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + state_ = staj2_cursor_state::typed_array; + data_ = typed_array_view(data.data(), data.size()); + index_ = 0; + return this->begin_array(tag, context, ec); + } + + bool visit_typed_array(const jsoncons::span& data, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + state_ = staj2_cursor_state::typed_array; + data_ = typed_array_view(data.data(), data.size()); + index_ = 0; + return this->begin_array(tag, context, ec); + } + + bool visit_typed_array(const jsoncons::span& data, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + state_ = staj2_cursor_state::typed_array; + data_ = typed_array_view(data.data(), data.size()); + index_ = 0; + return this->begin_array(tag, context, ec); + } + + bool visit_typed_array(const jsoncons::span& data, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + state_ = staj2_cursor_state::typed_array; + data_ = typed_array_view(data.data(), data.size()); + index_ = 0; + return this->begin_array(tag, context, ec); + } + + bool visit_typed_array(const jsoncons::span& data, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + state_ = staj2_cursor_state::typed_array; + data_ = typed_array_view(data.data(), data.size()); + index_ = 0; + return this->begin_array(tag, context, ec); + } + + bool visit_typed_array(half_arg_t, const jsoncons::span& data, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + state_ = staj2_cursor_state::typed_array; + data_ = typed_array_view(data.data(), data.size()); + index_ = 0; + return this->begin_array(tag, context, ec); + } + + bool visit_typed_array(const jsoncons::span& data, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + state_ = staj2_cursor_state::typed_array; + data_ = typed_array_view(data.data(), data.size()); + index_ = 0; + return this->begin_array(tag, context, ec); + } + + bool visit_typed_array(const jsoncons::span& data, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + state_ = staj2_cursor_state::typed_array; + data_ = typed_array_view(data.data(), data.size()); + index_ = 0; + return this->begin_array(tag, context, ec); + } + /* + bool visit_typed_array(const jsoncons::span&, + semantic_tag, + const ser_context&, + std::error_code&) override + { + return true; + } + */ + bool visit_begin_multi_dim(const jsoncons::span& shape, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + state_ = staj2_cursor_state::multi_dim; + shape_ = shape; + return this->begin_array(2, tag, context, ec); + } + + bool visit_end_multi_dim(const ser_context& context, + std::error_code& ec) override + { + return this->end_array(context, ec); + } + + void visit_flush() override + { + } + }; + + template + bool staj2_to_saj_event(const basic_staj2_event& ev, + basic_json_visitor2& visitor, + const ser_context& context, + std::error_code& ec) + { + switch (ev.event_type()) + { + case staj2_event_type::begin_array: + return visitor.begin_array(ev.tag(), context); + case staj2_event_type::end_array: + return visitor.end_array(context); + case staj2_event_type::begin_object: + return visitor.begin_object(ev.tag(), context, ec); + case staj2_event_type::end_object: + return visitor.end_object(context, ec); + case staj2_event_type::string_value: + return visitor.string_value(ev.template get>(), ev.tag(), context); + case staj2_event_type::byte_string_value: + return visitor.byte_string_value(ev.template get(), ev.tag(), context); + case staj2_event_type::null_value: + return visitor.null_value(ev.tag(), context); + case staj2_event_type::bool_value: + return visitor.bool_value(ev.template get(), ev.tag(), context); + case staj2_event_type::int64_value: + return visitor.int64_value(ev.template get(), ev.tag(), context); + case staj2_event_type::uint64_value: + return visitor.uint64_value(ev.template get(), ev.tag(), context); + case staj2_event_type::half_value: + return visitor.half_value(ev.template get(), ev.tag(), context); + case staj2_event_type::double_value: + return visitor.double_value(ev.template get(), ev.tag(), context); + default: + return false; + } + } + + // basic_staj2_cursor + + template + class basic_staj2_cursor + { + public: + virtual ~basic_staj2_cursor() noexcept = default; + + virtual void array_expected(std::error_code& ec) + { + if (!(current().event_type() == staj2_event_type::begin_array || current().event_type() == staj2_event_type::byte_string_value)) + { + ec = conv_errc::not_vector; + } + } + + virtual bool done() const = 0; + + virtual const basic_staj2_event& current() const = 0; + + virtual void read_to(basic_json_visitor2& visitor) = 0; + + virtual void read_to(basic_json_visitor2& visitor, + std::error_code& ec) = 0; + + virtual void next() = 0; + + virtual void next(std::error_code& ec) = 0; + + virtual const ser_context& context() const = 0; + }; + + template + class basic_staj2_filter_view : basic_staj2_cursor + { + basic_staj2_cursor* cursor_; + std::function&, const ser_context&)> pred_; + public: + basic_staj2_filter_view(basic_staj2_cursor& cursor, + std::function&, const ser_context&)> pred) + : cursor_(std::addressof(cursor)), pred_(pred) + { + while (!done() && !pred_(current(),context())) + { + cursor_->next(); + } + } + + bool done() const override + { + return cursor_->done(); + } + + const basic_staj2_event& current() const override + { + return cursor_->current(); + } + + void read_to(basic_json_visitor2& visitor) override + { + cursor_->read_to(visitor); + } + + void read_to(basic_json_visitor2& visitor, + std::error_code& ec) override + { + cursor_->read_to(visitor, ec); + } + + void next() override + { + cursor_->next(); + while (!done() && !pred_(current(),context())) + { + cursor_->next(); + } + } + + void next(std::error_code& ec) override + { + cursor_->next(ec); + while (!done() && !pred_(current(),context()) && !ec) + { + cursor_->next(ec); + } + } + + const ser_context& context() const override + { + return cursor_->context(); + } + + friend + basic_staj2_filter_view operator|(basic_staj2_filter_view& cursor, + std::function&, const ser_context&)> pred) + { + return basic_staj2_filter_view(cursor, pred); + } + }; + + using staj2_event = basic_staj2_event; + using wstaj2_event = basic_staj2_event; + + using staj2_cursor = basic_staj2_cursor; + using wstaj2_cursor = basic_staj2_cursor; + + using staj2_filter_view = basic_staj2_filter_view; + using wstaj2_filter_view = basic_staj2_filter_view; + +} // namespace jsoncons + +#endif + diff --git a/include/jsoncons/staj_cursor.hpp b/include/jsoncons/staj_cursor.hpp new file mode 100644 index 0000000..4594ba1 --- /dev/null +++ b/include/jsoncons/staj_cursor.hpp @@ -0,0 +1,1233 @@ +// Copyright 2018 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_STAJ_CURSOR_HPP +#define JSONCONS_STAJ_CURSOR_HPP + +#include // std::allocator +#include +#include +#include +#include +#include // std::enable_if +#include // std::array +#include // std::function +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +namespace jsoncons { + +enum class staj_event_type +{ + begin_array, + end_array, + begin_object, + end_object, + key, + string_value, + byte_string_value, + null_value, + bool_value, + int64_value, + uint64_value, + half_value, + double_value +#if !defined(JSONCONS_NO_DEPRECATED) + ,name = key +#endif +}; + +template +std::basic_ostream& operator<<(std::basic_ostream& os, staj_event_type tag) +{ + static constexpr const CharT* begin_array_name = JSONCONS_CSTRING_CONSTANT(CharT, "begin_array"); + static constexpr const CharT* end_array_name = JSONCONS_CSTRING_CONSTANT(CharT, "end_array"); + static constexpr const CharT* begin_object_name = JSONCONS_CSTRING_CONSTANT(CharT, "begin_object"); + static constexpr const CharT* end_object_name = JSONCONS_CSTRING_CONSTANT(CharT, "end_object"); + static constexpr const CharT* key_name = JSONCONS_CSTRING_CONSTANT(CharT, "key"); + static constexpr const CharT* string_value_name = JSONCONS_CSTRING_CONSTANT(CharT, "string_value"); + static constexpr const CharT* byte_string_value_name = JSONCONS_CSTRING_CONSTANT(CharT, "byte_string_value"); + static constexpr const CharT* null_value_name = JSONCONS_CSTRING_CONSTANT(CharT, "null_value"); + static constexpr const CharT* bool_value_name = JSONCONS_CSTRING_CONSTANT(CharT, "bool_value"); + static constexpr const CharT* uint64_value_name = JSONCONS_CSTRING_CONSTANT(CharT, "uint64_value"); + static constexpr const CharT* int64_value_name = JSONCONS_CSTRING_CONSTANT(CharT, "int64_value"); + static constexpr const CharT* half_value_name = JSONCONS_CSTRING_CONSTANT(CharT, "half_value"); + static constexpr const CharT* double_value_name = JSONCONS_CSTRING_CONSTANT(CharT, "double_value"); + + switch (tag) + { + case staj_event_type::begin_array: + { + os << begin_array_name; + break; + } + case staj_event_type::end_array: + { + os << end_array_name; + break; + } + case staj_event_type::begin_object: + { + os << begin_object_name; + break; + } + case staj_event_type::end_object: + { + os << end_object_name; + break; + } + case staj_event_type::key: + { + os << key_name; + break; + } + case staj_event_type::string_value: + { + os << string_value_name; + break; + } + case staj_event_type::byte_string_value: + { + os << byte_string_value_name; + break; + } + case staj_event_type::null_value: + { + os << null_value_name; + break; + } + case staj_event_type::bool_value: + { + os << bool_value_name; + break; + } + case staj_event_type::int64_value: + { + os << int64_value_name; + break; + } + case staj_event_type::uint64_value: + { + os << uint64_value_name; + break; + } + case staj_event_type::half_value: + { + os << half_value_name; + break; + } + case staj_event_type::double_value: + { + os << double_value_name; + break; + } + } + return os; +} + +template +class basic_staj_event +{ + staj_event_type event_type_; + semantic_tag tag_; + uint64_t ext_tag_; + union + { + bool bool_value_; + int64_t int64_value_; + uint64_t uint64_value_; + uint16_t half_value_; + double double_value_; + const CharT* string_data_; + const uint8_t* byte_string_data_; + } value_; + std::size_t length_; +public: + using string_view_type = jsoncons::basic_string_view; + + basic_staj_event(staj_event_type event_type, semantic_tag tag = semantic_tag::none) + : event_type_(event_type), tag_(tag), ext_tag_(0), value_(), length_(0) + { + } + + basic_staj_event(staj_event_type event_type, std::size_t length, semantic_tag tag = semantic_tag::none) + : event_type_(event_type), tag_(tag), ext_tag_(0), value_(), length_(length) + { + } + + basic_staj_event(null_type, semantic_tag tag) + : event_type_(staj_event_type::null_value), tag_(tag), ext_tag_(0), value_(), length_(0) + { + } + + basic_staj_event(bool value, semantic_tag tag) + : event_type_(staj_event_type::bool_value), tag_(tag), ext_tag_(0), length_(0) + { + value_.bool_value_ = value; + } + + basic_staj_event(int64_t value, semantic_tag tag) + : event_type_(staj_event_type::int64_value), tag_(tag), ext_tag_(0), length_(0) + { + value_.int64_value_ = value; + } + + basic_staj_event(uint64_t value, semantic_tag tag) + : event_type_(staj_event_type::uint64_value), tag_(tag), ext_tag_(0), length_(0) + { + value_.uint64_value_ = value; + } + + basic_staj_event(half_arg_t, uint16_t value, semantic_tag tag) + : event_type_(staj_event_type::half_value), tag_(tag), ext_tag_(0), length_(0) + { + value_.half_value_ = value; + } + + basic_staj_event(double value, semantic_tag tag) + : event_type_(staj_event_type::double_value), tag_(tag), ext_tag_(0), length_(0) + { + value_.double_value_ = value; + } + + basic_staj_event(const string_view_type& s, + staj_event_type event_type, + semantic_tag tag = semantic_tag::none) + : event_type_(event_type), tag_(tag), ext_tag_(0), length_(s.length()) + { + value_.string_data_ = s.data(); + } + + basic_staj_event(const byte_string_view& s, + staj_event_type event_type, + semantic_tag tag = semantic_tag::none) + : event_type_(event_type), tag_(tag), ext_tag_(0), length_(s.size()) + { + value_.byte_string_data_ = s.data(); + } + + basic_staj_event(const byte_string_view& s, + staj_event_type event_type, + uint64_t ext_tag) + : event_type_(event_type), tag_(semantic_tag::ext), ext_tag_(ext_tag), length_(s.size()) + { + value_.byte_string_data_ = s.data(); + } + + std::size_t size() const + { + return length_; + } + + template + T get() const + { + std::error_code ec; + T val = get(ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec)); + } + return val; + } + + template + typename std::enable_if::value && std::is_same::value, T>::type + get(std::error_code& ec) const + { + converter conv; + switch (event_type_) + { + case staj_event_type::key: + case staj_event_type::string_value: + return conv.from(jsoncons::basic_string_view(value_.string_data_, length_), tag(), ec); + case staj_event_type::byte_string_value: + { + return conv.from(byte_string_view(value_.byte_string_data_,length_), + tag(), + ec); + } + case staj_event_type::uint64_value: + { + return conv.from(value_.uint64_value_, tag(), ec); + } + case staj_event_type::int64_value: + { + return conv.from(value_.int64_value_, tag(), ec); + } + case staj_event_type::half_value: + { + return conv.from(half_arg, value_.half_value_, tag(), ec); + } + case staj_event_type::double_value: + { + return conv.from(value_.double_value_, tag(), ec); + } + case staj_event_type::bool_value: + { + return conv.from(value_.bool_value_,tag(),ec); + } + case staj_event_type::null_value: + { + return conv.from(null_type(),tag(),ec); + } + default: + { + ec = conv_errc::not_string; + return T{}; + } + } + } + + template + typename std::enable_if::value && std::is_same::value, T>::type + get(std::error_code& ec) const + { + T s; + switch (event_type_) + { + case staj_event_type::key: + case staj_event_type::string_value: + s = T(value_.string_data_, length_); + break; + default: + ec = conv_errc::not_string_view; + break; + } + return s; + } + + template + typename std::enable_if::value, T>::type + get(std::error_code& ec) const + { + T s; + switch (event_type_) + { + case staj_event_type::byte_string_value: + s = T(value_.byte_string_data_, length_); + break; + default: + ec = conv_errc::not_byte_string_view; + break; + } + return s; + } + + template + typename std::enable_if::value && + std::is_same::value,T>::type + get(std::error_code& ec) const + { + converter conv; + switch (event_type_) + { + case staj_event_type::byte_string_value: + return conv.from(byte_string_view(value_.byte_string_data_, length_), tag(), ec); + case staj_event_type::string_value: + return conv.from(jsoncons::basic_string_view(value_.string_data_, length_), tag(), ec); + default: + ec = conv_errc::not_byte_string; + return T{}; + } + } + + template + typename std::enable_if::value, IntegerType>::type + get(std::error_code& ec) const + { + switch (event_type_) + { + case staj_event_type::string_value: + { + IntegerType val; + auto result = jsoncons::detail::to_integer(value_.string_data_, length_, val); + if (!result) + { + ec = conv_errc::not_integer; + return IntegerType(); + } + return val; + } + case staj_event_type::half_value: + return static_cast(value_.half_value_); + case staj_event_type::double_value: + return static_cast(value_.double_value_); + case staj_event_type::int64_value: + return static_cast(value_.int64_value_); + case staj_event_type::uint64_value: + return static_cast(value_.uint64_value_); + case staj_event_type::bool_value: + return static_cast(value_.bool_value_ ? 1 : 0); + default: + ec = conv_errc::not_integer; + return IntegerType(); + } + } + + template + typename std::enable_if::value, T>::type + get(std::error_code& ec) const + { + return static_cast(as_double(ec)); + } + + template + typename std::enable_if::value, T>::type + get(std::error_code& ec) const + { + return as_bool(ec); + } + +#if !defined(JSONCONS_NO_DEPRECATED) + template + JSONCONS_DEPRECATED_MSG("Instead, use get()") + T as() const + { + return get(); + } + semantic_tag get_semantic_tag() const noexcept { return tag_; } +#endif + + staj_event_type event_type() const noexcept { return event_type_; } + + semantic_tag tag() const noexcept { return tag_; } + + uint64_t ext_tag() const noexcept { return ext_tag_; } + +private: + + double as_double(std::error_code& ec) const + { + switch (event_type_) + { + case staj_event_type::key: + case staj_event_type::string_value: + { + jsoncons::detail::chars_to f; + return f(value_.string_data_, length_); + } + case staj_event_type::double_value: + return value_.double_value_; + case staj_event_type::int64_value: + return static_cast(value_.int64_value_); + case staj_event_type::uint64_value: + return static_cast(value_.uint64_value_); + case staj_event_type::half_value: + { + double x = binary::decode_half(value_.half_value_); + return static_cast(x); + } + default: + ec = conv_errc::not_double; + return double(); + } + } + + bool as_bool(std::error_code& ec) const + { + switch (event_type_) + { + case staj_event_type::bool_value: + return value_.bool_value_; + case staj_event_type::double_value: + return value_.double_value_ != 0.0; + case staj_event_type::int64_value: + return value_.int64_value_ != 0; + case staj_event_type::uint64_value: + return value_.uint64_value_ != 0; + default: + ec = conv_errc::not_bool; + return bool(); + } + } +}; + +// basic_staj_visitor + +enum class staj_cursor_state +{ + typed_array = 1, + multi_dim, + shape +}; + +template +class basic_staj_visitor : public basic_json_visitor +{ + using super_type = basic_json_visitor; +public: + using char_type = CharT; + using typename super_type::string_view_type; +private: + std::function&, const ser_context&)> pred_; + basic_staj_event event_; + + staj_cursor_state state_; + typed_array_view data_; + jsoncons::span shape_; + std::size_t index_; +public: + basic_staj_visitor() + : pred_(accept), event_(staj_event_type::null_value), + state_(), data_(), shape_(), index_(0) + { + } + + basic_staj_visitor(std::function&, const ser_context&)> pred) + : pred_(pred), event_(staj_event_type::null_value), + state_(), data_(), shape_(), index_(0) + { + } + + void reset() + { + event_ = staj_event_type::null_value; + state_ = {}; + data_ = {}; + shape_ = {}; + index_ = 0; + } + + const basic_staj_event& event() const + { + return event_; + } + + bool in_available() const + { + return state_ != staj_cursor_state(); + } + + void send_available(std::error_code& ec) + { + switch (state_) + { + case staj_cursor_state::typed_array: + advance_typed_array(ec); + break; + case staj_cursor_state::multi_dim: + case staj_cursor_state::shape: + advance_multi_dim(ec); + break; + default: + break; + } + } + + bool is_typed_array() const + { + return data_.type() != typed_array_type(); + } + + staj_cursor_state state() const + { + return state_; + } + + void advance_typed_array(std::error_code& ec) + { + if (is_typed_array()) + { + if (index_ < data_.size()) + { + switch (data_.type()) + { + case typed_array_type::uint8_value: + { + this->uint64_value(data_.data(uint8_array_arg)[index_], semantic_tag::none, ser_context(), ec); + break; + } + case typed_array_type::uint16_value: + { + this->uint64_value(data_.data(uint16_array_arg)[index_], semantic_tag::none, ser_context(), ec); + break; + } + case typed_array_type::uint32_value: + { + this->uint64_value(data_.data(uint32_array_arg)[index_], semantic_tag::none, ser_context(), ec); + break; + } + case typed_array_type::uint64_value: + { + this->uint64_value(data_.data(uint64_array_arg)[index_], semantic_tag::none, ser_context(), ec); + break; + } + case typed_array_type::int8_value: + { + this->int64_value(data_.data(int8_array_arg)[index_], semantic_tag::none, ser_context(), ec); + break; + } + case typed_array_type::int16_value: + { + this->int64_value(data_.data(int16_array_arg)[index_], semantic_tag::none, ser_context(), ec); + break; + } + case typed_array_type::int32_value: + { + this->int64_value(data_.data(int32_array_arg)[index_], semantic_tag::none, ser_context(), ec); + break; + } + case typed_array_type::int64_value: + { + this->int64_value(data_.data(int64_array_arg)[index_], semantic_tag::none, ser_context(), ec); + break; + } + case typed_array_type::half_value: + { + this->half_value(data_.data(half_array_arg)[index_], semantic_tag::none, ser_context(), ec); + break; + } + case typed_array_type::float_value: + { + this->double_value(data_.data(float_array_arg)[index_], semantic_tag::none, ser_context(), ec); + break; + } + case typed_array_type::double_value: + { + this->double_value(data_.data(double_array_arg)[index_], semantic_tag::none, ser_context(), ec); + break; + } + default: + break; + } + ++index_; + } + else + { + this->end_array(); + state_ = staj_cursor_state(); + data_ = typed_array_view(); + index_ = 0; + } + } + } + + void advance_multi_dim(std::error_code& ec) + { + if (shape_.size() != 0) + { + if (state_ == staj_cursor_state::multi_dim) + { + this->begin_array(shape_.size(), semantic_tag::none, ser_context(), ec); + state_ = staj_cursor_state::shape; + } + else if (index_ < shape_.size()) + { + this->uint64_value(shape_[index_], semantic_tag::none, ser_context(), ec); + ++index_; + } + else + { + state_ = staj_cursor_state(); + this->end_array(ser_context(), ec); + shape_ = jsoncons::span(); + index_ = 0; + } + } + } + + bool dump(basic_json_visitor& visitor, const ser_context& context, std::error_code& ec) + { + bool more = true; + if (is_typed_array()) + { + if (index_ != 0) + { + more = staj_to_saj_event(event(), visitor, context, ec); + while (more && is_typed_array()) + { + if (index_ < data_.size()) + { + switch (data_.type()) + { + case typed_array_type::uint8_value: + { + more = visitor.uint64_value(data_.data(uint8_array_arg)[index_]); + break; + } + case typed_array_type::uint16_value: + { + more = visitor.uint64_value(data_.data(uint16_array_arg)[index_]); + break; + } + case typed_array_type::uint32_value: + { + more = visitor.uint64_value(data_.data(uint32_array_arg)[index_]); + break; + } + case typed_array_type::uint64_value: + { + more = visitor.uint64_value(data_.data(uint64_array_arg)[index_]); + break; + } + case typed_array_type::int8_value: + { + more = visitor.int64_value(data_.data(int8_array_arg)[index_]); + break; + } + case typed_array_type::int16_value: + { + more = visitor.int64_value(data_.data(int16_array_arg)[index_]); + break; + } + case typed_array_type::int32_value: + { + more = visitor.int64_value(data_.data(int32_array_arg)[index_]); + break; + } + case typed_array_type::int64_value: + { + more = visitor.int64_value(data_.data(int64_array_arg)[index_]); + break; + } + case typed_array_type::float_value: + { + more = visitor.double_value(data_.data(float_array_arg)[index_]); + break; + } + case typed_array_type::double_value: + { + more = visitor.double_value(data_.data(double_array_arg)[index_]); + break; + } + default: + break; + } + ++index_; + } + else + { + more = visitor.end_array(); + state_ = staj_cursor_state(); + data_ = typed_array_view(); + index_ = 0; + } + } + } + else + { + switch (data_.type()) + { + case typed_array_type::uint8_value: + { + more = visitor.typed_array(data_.data(uint8_array_arg)); + break; + } + case typed_array_type::uint16_value: + { + more = visitor.typed_array(data_.data(uint16_array_arg)); + break; + } + case typed_array_type::uint32_value: + { + more = visitor.typed_array(data_.data(uint32_array_arg)); + break; + } + case typed_array_type::uint64_value: + { + more = visitor.typed_array(data_.data(uint64_array_arg)); + break; + } + case typed_array_type::int8_value: + { + more = visitor.typed_array(data_.data(int8_array_arg)); + break; + } + case typed_array_type::int16_value: + { + more = visitor.typed_array(data_.data(int16_array_arg)); + break; + } + case typed_array_type::int32_value: + { + more = visitor.typed_array(data_.data(int32_array_arg)); + break; + } + case typed_array_type::int64_value: + { + more = visitor.typed_array(data_.data(int64_array_arg)); + break; + } + case typed_array_type::float_value: + { + more = visitor.typed_array(data_.data(float_array_arg)); + break; + } + case typed_array_type::double_value: + { + more = visitor.typed_array(data_.data(double_array_arg)); + break; + } + default: + break; + } + + state_ = staj_cursor_state(); + data_ = typed_array_view(); + } + } + else + { + more = staj_to_saj_event(event(), visitor, context, ec); + } + return more; + } + +private: + static constexpr bool accept(const basic_staj_event&, const ser_context&) + { + return true; + } + + bool visit_begin_object(semantic_tag tag, const ser_context& context, std::error_code&) override + { + event_ = basic_staj_event(staj_event_type::begin_object, tag); + return !pred_(event_, context); + } + + bool visit_begin_object(std::size_t length, semantic_tag tag, const ser_context& context, std::error_code&) override + { + event_ = basic_staj_event(staj_event_type::begin_object, length, tag); + return !pred_(event_, context); + } + + bool visit_end_object(const ser_context& context, std::error_code&) override + { + event_ = basic_staj_event(staj_event_type::end_object); + return !pred_(event_, context); + } + + bool visit_begin_array(semantic_tag tag, const ser_context& context, std::error_code&) override + { + event_ = basic_staj_event(staj_event_type::begin_array, tag); + return !pred_(event_, context); + } + + bool visit_begin_array(std::size_t length, semantic_tag tag, const ser_context& context, std::error_code&) override + { + event_ = basic_staj_event(staj_event_type::begin_array, length, tag); + return !pred_(event_, context); + } + + bool visit_end_array(const ser_context& context, std::error_code&) override + { + event_ = basic_staj_event(staj_event_type::end_array); + return !pred_(event_, context); + } + + bool visit_key(const string_view_type& name, const ser_context& context, std::error_code&) override + { + event_ = basic_staj_event(name, staj_event_type::key); + return !pred_(event_, context); + } + + bool visit_null(semantic_tag tag, const ser_context& context, std::error_code&) override + { + event_ = basic_staj_event(staj_event_type::null_value, tag); + return !pred_(event_, context); + } + + bool visit_bool(bool value, semantic_tag tag, const ser_context& context, std::error_code&) override + { + event_ = basic_staj_event(value, tag); + return !pred_(event_, context); + } + + bool visit_string(const string_view_type& s, semantic_tag tag, const ser_context& context, std::error_code&) override + { + event_ = basic_staj_event(s, staj_event_type::string_value, tag); + return !pred_(event_, context); + } + + bool visit_byte_string(const byte_string_view& s, + semantic_tag tag, + const ser_context& context, + std::error_code&) override + { + event_ = basic_staj_event(s, staj_event_type::byte_string_value, tag); + return !pred_(event_, context); + } + + bool visit_byte_string(const byte_string_view& s, + uint64_t ext_tag, + const ser_context& context, + std::error_code&) override + { + event_ = basic_staj_event(s, staj_event_type::byte_string_value, ext_tag); + return !pred_(event_, context); + } + + bool visit_uint64(uint64_t value, + semantic_tag tag, + const ser_context& context, + std::error_code&) override + { + event_ = basic_staj_event(value, tag); + return !pred_(event_, context); + } + + bool visit_int64(int64_t value, + semantic_tag tag, + const ser_context& context, + std::error_code&) override + { + event_ = basic_staj_event(value, tag); + return !pred_(event_, context); + } + + bool visit_half(uint16_t value, + semantic_tag tag, + const ser_context& context, + std::error_code&) override + { + event_ = basic_staj_event(half_arg, value, tag); + return !pred_(event_, context); + } + + bool visit_double(double value, + semantic_tag tag, + const ser_context& context, + std::error_code&) override + { + event_ = basic_staj_event(value, tag); + return !pred_(event_, context); + } + + bool visit_typed_array(const jsoncons::span& v, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + state_ = staj_cursor_state::typed_array; + data_ = typed_array_view(v.data(), v.size()); + index_ = 0; + return this->begin_array(tag, context, ec); + } + + bool visit_typed_array(const jsoncons::span& data, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + state_ = staj_cursor_state::typed_array; + data_ = typed_array_view(data.data(), data.size()); + index_ = 0; + return this->begin_array(tag, context, ec); + } + + bool visit_typed_array(const jsoncons::span& data, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + state_ = staj_cursor_state::typed_array; + data_ = typed_array_view(data.data(), data.size()); + index_ = 0; + return this->begin_array(tag, context, ec); + } + + bool visit_typed_array(const jsoncons::span& data, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + state_ = staj_cursor_state::typed_array; + data_ = typed_array_view(data.data(), data.size()); + index_ = 0; + return this->begin_array(tag, context, ec); + } + + bool visit_typed_array(const jsoncons::span& data, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + state_ = staj_cursor_state::typed_array; + data_ = typed_array_view(data.data(), data.size()); + index_ = 0; + return this->begin_array(tag, context, ec); + } + + bool visit_typed_array(const jsoncons::span& data, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + state_ = staj_cursor_state::typed_array; + data_ = typed_array_view(data.data(), data.size()); + index_ = 0; + return this->begin_array(tag, context, ec); + } + + bool visit_typed_array(const jsoncons::span& data, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + state_ = staj_cursor_state::typed_array; + data_ = typed_array_view(data.data(), data.size()); + index_ = 0; + return this->begin_array(tag, context, ec); + } + + bool visit_typed_array(const jsoncons::span& data, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + state_ = staj_cursor_state::typed_array; + data_ = typed_array_view(data.data(), data.size()); + index_ = 0; + return this->begin_array(tag, context, ec); + } + + bool visit_typed_array(half_arg_t, const jsoncons::span& data, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + state_ = staj_cursor_state::typed_array; + data_ = typed_array_view(data.data(), data.size()); + index_ = 0; + return this->begin_array(tag, context, ec); + } + + bool visit_typed_array(const jsoncons::span& data, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + state_ = staj_cursor_state::typed_array; + data_ = typed_array_view(data.data(), data.size()); + index_ = 0; + return this->begin_array(tag, context, ec); + } + + bool visit_typed_array(const jsoncons::span& data, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + state_ = staj_cursor_state::typed_array; + data_ = typed_array_view(data.data(), data.size()); + index_ = 0; + return this->begin_array(tag, context, ec); + } +/* + bool visit_typed_array(const jsoncons::span&, + semantic_tag, + const ser_context&, + std::error_code&) override + { + return true; + } +*/ + bool visit_begin_multi_dim(const jsoncons::span& shape, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + state_ = staj_cursor_state::multi_dim; + shape_ = shape; + return this->begin_array(2, tag, context, ec); + } + + bool visit_end_multi_dim(const ser_context& context, + std::error_code& ec) override + { + return this->end_array(context, ec); + } + + void visit_flush() override + { + } +}; + +template +bool staj_to_saj_event(const basic_staj_event& ev, + basic_json_visitor& visitor, + const ser_context& context, + std::error_code& ec) +{ + switch (ev.event_type()) + { + case staj_event_type::begin_array: + return visitor.begin_array(ev.tag(), context); + case staj_event_type::end_array: + return visitor.end_array(context); + case staj_event_type::begin_object: + return visitor.begin_object(ev.tag(), context, ec); + case staj_event_type::end_object: + return visitor.end_object(context, ec); + case staj_event_type::key: + return visitor.key(ev.template get>(), context); + case staj_event_type::string_value: + return visitor.string_value(ev.template get>(), ev.tag(), context); + case staj_event_type::byte_string_value: + return visitor.byte_string_value(ev.template get(), ev.tag(), context); + case staj_event_type::null_value: + return visitor.null_value(ev.tag(), context); + case staj_event_type::bool_value: + return visitor.bool_value(ev.template get(), ev.tag(), context); + case staj_event_type::int64_value: + return visitor.int64_value(ev.template get(), ev.tag(), context); + case staj_event_type::uint64_value: + return visitor.uint64_value(ev.template get(), ev.tag(), context); + case staj_event_type::half_value: + return visitor.half_value(ev.template get(), ev.tag(), context); + case staj_event_type::double_value: + return visitor.double_value(ev.template get(), ev.tag(), context); + default: + return false; + } +} + +// basic_staj_cursor + +template +class basic_staj_cursor +{ +public: + virtual ~basic_staj_cursor() noexcept = default; + + virtual void array_expected(std::error_code& ec) + { + if (!(current().event_type() == staj_event_type::begin_array || current().event_type() == staj_event_type::byte_string_value)) + { + ec = conv_errc::not_vector; + } + } + + virtual bool done() const = 0; + + virtual const basic_staj_event& current() const = 0; + + virtual void read_to(basic_json_visitor& visitor) = 0; + + virtual void read_to(basic_json_visitor& visitor, + std::error_code& ec) = 0; + + virtual void next() = 0; + + virtual void next(std::error_code& ec) = 0; + + virtual const ser_context& context() const = 0; +}; + +template +class basic_staj_filter_view : basic_staj_cursor +{ + basic_staj_cursor* cursor_; + std::function&, const ser_context&)> pred_; +public: + basic_staj_filter_view(basic_staj_cursor& cursor, + std::function&, const ser_context&)> pred) + : cursor_(std::addressof(cursor)), pred_(pred) + { + while (!done() && !pred_(current(),context())) + { + cursor_->next(); + } + } + + bool done() const override + { + return cursor_->done(); + } + + const basic_staj_event& current() const override + { + return cursor_->current(); + } + + void read_to(basic_json_visitor& visitor) override + { + cursor_->read_to(visitor); + } + + void read_to(basic_json_visitor& visitor, + std::error_code& ec) override + { + cursor_->read_to(visitor, ec); + } + + void next() override + { + cursor_->next(); + while (!done() && !pred_(current(),context())) + { + cursor_->next(); + } + } + + void next(std::error_code& ec) override + { + cursor_->next(ec); + while (!done() && !pred_(current(),context()) && !ec) + { + cursor_->next(ec); + } + } + + const ser_context& context() const override + { + return cursor_->context(); + } + + friend + basic_staj_filter_view operator|(basic_staj_filter_view& cursor, + std::function&, const ser_context&)> pred) + { + return basic_staj_filter_view(cursor, pred); + } +}; + +using staj_event = basic_staj_event; +using wstaj_event = basic_staj_event; + +using staj_cursor = basic_staj_cursor; +using wstaj_cursor = basic_staj_cursor; + +using staj_filter_view = basic_staj_filter_view; +using wstaj_filter_view = basic_staj_filter_view; + +#if !defined(JSONCONS_NO_DEPRECATED) + +JSONCONS_DEPRECATED_MSG("Instead, use staj_event_type") typedef staj_event_type stream_event_type; + +template +using basic_stream_event = basic_staj_event; + +template +using basic_stream_reader = basic_staj_cursor; + +template +using basic_staj_reader = basic_staj_cursor; + +JSONCONS_DEPRECATED_MSG("Instead, use staj_event") typedef basic_staj_event stream_event; +JSONCONS_DEPRECATED_MSG("Instead, use wstaj_event") typedef basic_staj_event wstream_event; + +JSONCONS_DEPRECATED_MSG("Instead, use staj_cursor") typedef basic_staj_cursor stream_reader; +JSONCONS_DEPRECATED_MSG("Instead, use wstaj_cursor") typedef basic_staj_cursor wstream_reader; + +JSONCONS_DEPRECATED_MSG("Instead, use staj_cursor") typedef basic_staj_cursor staj_reader; +JSONCONS_DEPRECATED_MSG("Instead, use wstaj_cursor") typedef basic_staj_cursor wstaj_reader; + +#endif + +} + +#endif + diff --git a/include/jsoncons/staj_iterator.hpp b/include/jsoncons/staj_iterator.hpp new file mode 100644 index 0000000..a6897f7 --- /dev/null +++ b/include/jsoncons/staj_iterator.hpp @@ -0,0 +1,449 @@ +// Copyright 2018 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_STAJ_ITERATOR_HPP +#define JSONCONS_STAJ_ITERATOR_HPP + +#include // placement new +#include +#include +#include +#include +#include +#include // std::input_iterator_tag +#include +#include +#include +#include + +namespace jsoncons { + + template + class staj_array_view; + + template + class staj_array_iterator + { + using char_type = typename Json::char_type; + + staj_array_view* view_; + std::exception_ptr eptr_; + + public: + using value_type = T; + using difference_type = std::ptrdiff_t; + using pointer = T*; + using reference = T&; + using iterator_category = std::input_iterator_tag; + + staj_array_iterator() noexcept + : view_(nullptr) + { + } + + staj_array_iterator(staj_array_view& view) + : view_(std::addressof(view)) + { + if (view_->cursor_->current().event_type() == staj_event_type::begin_array) + { + next(); + } + else + { + view_->cursor_ = nullptr; + } + } + + staj_array_iterator(staj_array_view& view, + std::error_code& ec) + : view_(std::addressof(view)) + { + if (view_->cursor_->current().event_type() == staj_event_type::begin_array) + { + next(ec); + if (ec) {view_ = nullptr;} + } + else + { + view_ = nullptr; + } + } + + ~staj_array_iterator() noexcept + { + } + + bool has_value() const + { + return !eptr_; + } + + const T& operator*() const + { + if (eptr_) + { + std::rethrow_exception(eptr_); + } + else + { + return *view_->value_; + } + } + + const T* operator->() const + { + if (eptr_) + { + std::rethrow_exception(eptr_); + } + else + { + return view_->value_.operator->(); + } + } + + staj_array_iterator& operator++() + { + next(); + return *this; + } + + staj_array_iterator& increment(std::error_code& ec) + { + next(ec); + if (ec) {view_ = nullptr;} + return *this; + } + + staj_array_iterator operator++(int) // postfix increment + { + staj_array_iterator temp(*this); + next(); + return temp; + } + + friend bool operator==(const staj_array_iterator& a, const staj_array_iterator& b) + { + return (!a.view_ && !b.view_) + || (!a.view_ && b.done()) + || (!b.view_ && a.done()); + } + + friend bool operator!=(const staj_array_iterator& a, const staj_array_iterator& b) + { + return !(a == b); + } + + private: + + bool done() const + { + return view_->cursor_->done() || view_->cursor_->current().event_type() == staj_event_type::end_array; + } + + void next() + { + std::error_code ec; + next(ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, view_->cursor_->context().line(), view_->cursor_->context().column())); + } + } + + void next(std::error_code& ec) + { + using char_type = typename Json::char_type; + + if (!done()) + { + view_->cursor_->next(ec); + if (ec) + { + return; + } + if (!done()) + { + eptr_ = std::exception_ptr(); + JSONCONS_TRY + { + view_->value_ = decode_traits::decode(*view_->cursor_, view_->decoder_, ec); + } + JSONCONS_CATCH(const conv_error&) + { + eptr_ = std::current_exception(); + } + } + } + } + }; + + template + class staj_object_view; + + template + class staj_object_iterator + { + using char_type = typename Json::char_type; + + staj_object_view* view_; + std::exception_ptr eptr_; + public: + using key_type = std::basic_string; + using value_type = std::pair; + using difference_type = std::ptrdiff_t; + using pointer = value_type*; + using reference = value_type&; + using iterator_category = std::input_iterator_tag; + + public: + + staj_object_iterator() noexcept + : view_(nullptr) + { + } + + staj_object_iterator(staj_object_view& view) + : view_(std::addressof(view)) + { + if (view_->cursor_->current().event_type() == staj_event_type::begin_object) + { + next(); + } + else + { + view_ = nullptr; + } + } + + staj_object_iterator(staj_object_view& view, + std::error_code& ec) + : view_(std::addressof(view)) + { + if (view_->cursor_->current().event_type() == staj_event_type::begin_object) + { + next(ec); + if (ec) {view_ = nullptr;} + } + else + { + view_ = nullptr; + } + } + + ~staj_object_iterator() noexcept + { + } + + bool has_value() const + { + return !eptr_; + } + + const value_type& operator*() const + { + if (eptr_) + { + std::rethrow_exception(eptr_); + } + else + { + return *view_->key_value_; + } + } + + const value_type* operator->() const + { + if (eptr_) + { + std::rethrow_exception(eptr_); + } + else + { + return view_->key_value_.operator->(); + } + } + + staj_object_iterator& operator++() + { + next(); + return *this; + } + + staj_object_iterator& increment(std::error_code& ec) + { + next(ec); + if (ec) + { + view_ = nullptr; + } + return *this; + } + + staj_object_iterator operator++(int) // postfix increment + { + staj_object_iterator temp(*this); + next(); + return temp; + } + + friend bool operator==(const staj_object_iterator& a, const staj_object_iterator& b) + { + return (!a.view_ && !b.view_) + || (!a.view_ && b.done()) + || (!b.view_ && a.done()); + } + + friend bool operator!=(const staj_object_iterator& a, const staj_object_iterator& b) + { + return !(a == b); + } + + private: + + bool done() const + { + return view_->cursor_->done() || view_->cursor_->current().event_type() == staj_event_type::end_object; + } + + void next() + { + std::error_code ec; + next(ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, view_->cursor_->context().line(), view_->cursor_->context().column())); + } + } + + void next(std::error_code& ec) + { + using char_type = typename Json::char_type; + + view_->cursor_->next(ec); + if (ec) + { + return; + } + if (!done()) + { + JSONCONS_ASSERT(view_->cursor_->current().event_type() == staj_event_type::key); + auto key = view_->cursor_->current(). template get(); + view_->cursor_->next(ec); + if (ec) + { + return; + } + if (!done()) + { + eptr_ = std::exception_ptr(); + JSONCONS_TRY + { + view_->key_value_ = value_type(std::move(key),decode_traits::decode(*view_->cursor_, view_->decoder_, ec)); + } + JSONCONS_CATCH(const conv_error&) + { + eptr_ = std::current_exception(); + } + } + } + } + }; + + // staj_array_view + + template + class staj_array_view + { + friend class staj_array_iterator; + public: + using char_type = typename Json::char_type; + using iterator = staj_array_iterator; + private: + basic_staj_cursor* cursor_; + json_decoder decoder_; + jsoncons::optional value_; + public: + staj_array_view(basic_staj_cursor& cursor) + : cursor_(std::addressof(cursor)) + { + } + + iterator begin() + { + return staj_array_iterator(*this); + } + + iterator end() + { + return staj_array_iterator(); + } + }; + + // staj_object_view + + template + class staj_object_view + { + friend class staj_object_iterator; + public: + using char_type = typename Json::char_type; + using iterator = staj_object_iterator; + using key_type = std::basic_string; + using value_type = std::pair; + private: + basic_staj_cursor* cursor_; + json_decoder decoder_; + jsoncons::optional key_value_; + public: + staj_object_view(basic_staj_cursor& cursor) + : cursor_(std::addressof(cursor)) + { + } + + iterator begin() + { + return staj_object_iterator(*this); + } + + iterator end() + { + return staj_object_iterator(); + } + }; + + template ::value,T,basic_json>::type> + staj_array_view staj_array(basic_staj_cursor& cursor) + { + return staj_array_view(cursor); + } + + template ::value,T,basic_json>::type> + staj_object_view staj_object(basic_staj_cursor& cursor) + { + return staj_object_view(cursor); + } + +#if !defined(JSONCONS_NO_DEPRECATED) + template ::value,T,basic_json>::type> + JSONCONS_DEPRECATED_MSG("Instead, use staj_array()") + staj_array_view make_array_iterator(basic_staj_cursor& cursor) + { + return staj_array_view(cursor); + } + + template ::value,T,basic_json>::type> + JSONCONS_DEPRECATED_MSG("Instead, use staj_object()") + staj_object_view, T, Json> make_object_iterator(basic_staj_cursor& cursor) + { + return staj_object_view, T, Json>(cursor); + } +#endif + +} // namespace jsoncons + +#endif + diff --git a/include/jsoncons/tag_type.hpp b/include/jsoncons/tag_type.hpp new file mode 100644 index 0000000..ffefd8a --- /dev/null +++ b/include/jsoncons/tag_type.hpp @@ -0,0 +1,245 @@ +// Copyright 2019 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_TAG_TYPE_HPP +#define JSONCONS_TAG_TYPE_HPP + +#include +#include + +namespace jsoncons { + +struct null_type +{ + explicit null_type() = default; +}; + +struct temp_allocator_arg_t +{ + explicit temp_allocator_arg_t() = default; +}; + +constexpr temp_allocator_arg_t temp_allocator_arg{}; + +struct result_allocator_arg_t +{ + explicit result_allocator_arg_t() = default; +}; + +constexpr result_allocator_arg_t result_allocator_arg{}; + +struct half_arg_t +{ + explicit half_arg_t() = default; +}; + +constexpr half_arg_t half_arg{}; + +struct json_array_arg_t +{ + explicit json_array_arg_t() = default; +}; + +constexpr json_array_arg_t json_array_arg{}; + +struct json_object_arg_t +{ + explicit json_object_arg_t() = default; +}; + +constexpr json_object_arg_t json_object_arg{}; + +struct byte_string_arg_t +{ + explicit byte_string_arg_t() = default; +}; + +constexpr byte_string_arg_t byte_string_arg{}; + +struct json_const_pointer_arg_t +{ + explicit json_const_pointer_arg_t() = default; +}; + +constexpr json_const_pointer_arg_t json_const_pointer_arg{}; + +enum class semantic_tag : uint8_t +{ + none = 0, + undefined = 0x01, + datetime = 0x02, + epoch_second = 0x03, + epoch_milli = 0x04, + epoch_nano = 0x05, + bigint = 0x06, + bigdec = 0x07, + bigfloat = 0x08, + float128 = 0x09, + base16 = 0x1a, + base64 = 0x1b, + base64url = 0x1c, + uri = 0x0d, + clamped = 0x0e, + multi_dim_row_major = 0x0f, + multi_dim_column_major = 0x10, + ext = 0x11, + id = 0x12, + regex = 0x13, + code = 0x14 +#if !defined(JSONCONS_NO_DEPRECATED) + , big_integer = bigint + , big_decimal = bigdec + , big_float = bigfloat + , date_time = datetime + , timestamp = epoch_second +#endif +}; + +template +std::basic_ostream& operator<<(std::basic_ostream& os, semantic_tag tag) +{ + static constexpr const CharT* na_name = JSONCONS_CSTRING_CONSTANT(CharT, "n/a"); + static constexpr const CharT* undefined_name = JSONCONS_CSTRING_CONSTANT(CharT, "undefined"); + static constexpr const CharT* datetime_name = JSONCONS_CSTRING_CONSTANT(CharT, "datetime"); + static constexpr const CharT* epoch_second_name = JSONCONS_CSTRING_CONSTANT(CharT, "epoch-second"); + static constexpr const CharT* epoch_milli_name = JSONCONS_CSTRING_CONSTANT(CharT, "epoch-milli"); + static constexpr const CharT* epoch_nano_name = JSONCONS_CSTRING_CONSTANT(CharT, "epoch-nano"); + static constexpr const CharT* bigint_name = JSONCONS_CSTRING_CONSTANT(CharT, "bigint"); + static constexpr const CharT* bigdec_name = JSONCONS_CSTRING_CONSTANT(CharT, "bigdec"); + static constexpr const CharT* bigfloat_name = JSONCONS_CSTRING_CONSTANT(CharT, "bigfloat"); + static constexpr const CharT* base16_name = JSONCONS_CSTRING_CONSTANT(CharT, "base16"); + static constexpr const CharT* base64_name = JSONCONS_CSTRING_CONSTANT(CharT, "base64"); + static constexpr const CharT* base64url_name = JSONCONS_CSTRING_CONSTANT(CharT, "base64url"); + static constexpr const CharT* uri_name = JSONCONS_CSTRING_CONSTANT(CharT, "uri"); + static constexpr const CharT* clamped_name = JSONCONS_CSTRING_CONSTANT(CharT, "clamped"); + static constexpr const CharT* multi_dim_row_major_name = JSONCONS_CSTRING_CONSTANT(CharT, "multi-dim-row-major"); + static constexpr const CharT* multi_dim_column_major_name = JSONCONS_CSTRING_CONSTANT(CharT, "multi-dim-column-major"); + static constexpr const CharT* ext_name = JSONCONS_CSTRING_CONSTANT(CharT, "ext"); + static constexpr const CharT* id_name = JSONCONS_CSTRING_CONSTANT(CharT, "id"); + static constexpr const CharT* float128_name = JSONCONS_CSTRING_CONSTANT(CharT, "float128"); + static constexpr const CharT* regex_name = JSONCONS_CSTRING_CONSTANT(CharT, "regex"); + static constexpr const CharT* code_name = JSONCONS_CSTRING_CONSTANT(CharT, "code"); + + switch (tag) + { + case semantic_tag::none: + { + os << na_name; + break; + } + case semantic_tag::undefined: + { + os << undefined_name; + break; + } + case semantic_tag::datetime: + { + os << datetime_name; + break; + } + case semantic_tag::epoch_second: + { + os << epoch_second_name; + break; + } + case semantic_tag::epoch_milli: + { + os << epoch_milli_name; + break; + } + case semantic_tag::epoch_nano: + { + os << epoch_nano_name; + break; + } + case semantic_tag::bigint: + { + os << bigint_name; + break; + } + case semantic_tag::bigdec: + { + os << bigdec_name; + break; + } + case semantic_tag::bigfloat: + { + os << bigfloat_name; + break; + } + case semantic_tag::float128: + { + os << float128_name; + break; + } + case semantic_tag::base16: + { + os << base16_name; + break; + } + case semantic_tag::base64: + { + os << base64_name; + break; + } + case semantic_tag::base64url: + { + os << base64url_name; + break; + } + case semantic_tag::uri: + { + os << uri_name; + break; + } + case semantic_tag::clamped: + { + os << clamped_name; + break; + } + case semantic_tag::multi_dim_row_major: + { + os << multi_dim_row_major_name; + break; + } + case semantic_tag::multi_dim_column_major: + { + os << multi_dim_column_major_name; + break; + } + case semantic_tag::ext: + { + os << ext_name; + break; + } + case semantic_tag::id: + { + os << id_name; + break; + } + case semantic_tag::regex: + { + os << regex_name; + break; + } + case semantic_tag::code: + { + os << code_name; + break; + } + } + return os; +} + +#if !defined(JSONCONS_NO_DEPRECATED) + JSONCONS_DEPRECATED_MSG("Instead, use semantic_tag") typedef semantic_tag semantic_tag_type; + JSONCONS_DEPRECATED_MSG("Instead, use byte_string_arg_t") typedef byte_string_arg_t bstr_arg_t; + constexpr byte_string_arg_t bstr_arg{}; +#endif + +} + +#endif diff --git a/include/jsoncons/text_source_adaptor.hpp b/include/jsoncons/text_source_adaptor.hpp new file mode 100644 index 0000000..491e8a6 --- /dev/null +++ b/include/jsoncons/text_source_adaptor.hpp @@ -0,0 +1,144 @@ +// Copyright 2021 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_TEXT_SOURCE_ADAPTOR_HPP +#define JSONCONS_TEXT_SOURCE_ADAPTOR_HPP + +#include +#include +#include +#include +#include +#include // std::allocator_traits +#include // std::vector +#include +#include // json_errc +#include +#include + +namespace jsoncons { + + // unicode_source_adaptor + + template + class unicode_source_adaptor + { + public: + using value_type = typename Source::value_type; + using source_type = Source; + private: + source_type source_; + bool bof_; + + + public: + template + unicode_source_adaptor(Sourceable&& source) + : source_(std::forward(source)), + bof_(true) + { + } + + bool is_error() const + { + return source_.is_error(); + } + + bool eof() const + { + return source_.eof(); + } + + span read_buffer(std::error_code& ec) + { + if (source_.eof()) + { + return span(); + } + + auto s = source_.read_buffer(); + const value_type* data = s.data(); + std::size_t length = s.size(); + + if (bof_ && length > 0) + { + auto r = unicode_traits::detect_encoding_from_bom(data, length); + if (!(r.encoding == unicode_traits::encoding_kind::utf8 || r.encoding == unicode_traits::encoding_kind::undetected)) + { + ec = json_errc::illegal_unicode_character; + return; + } + length -= (r.ptr - data); + data = r.ptr; + bof_ = false; + } + return span(data, length); + } + }; + + // json_source_adaptor + + template + class json_source_adaptor + { + public: + using value_type = typename Source::value_type; + using value_type = typename Source::value_type; + using source_type = Source; + private: + source_type source_; + bool bof_; + + public: + + template + json_source_adaptor(Sourceable&& source) + : source_(std::forward(source)), + bof_(true) + { + } + + bool is_error() const + { + return source_.is_error(); + } + + bool eof() const + { + return source_.eof(); + } + + span read_buffer(std::error_code& ec) + { + if (source_.eof()) + { + return span(); + } + + auto s = source_.read_buffer(); + const value_type* data = s.data(); + std::size_t length = s.size(); + + if (bof_ && length > 0) + { + auto r = unicode_traits::detect_json_encoding(data, length); + if (!(r.encoding == unicode_traits::encoding_kind::utf8 || r.encoding == unicode_traits::encoding_kind::undetected)) + { + ec = json_errc::illegal_unicode_character; + return span(); + } + length -= (r.ptr - data); + data = r.ptr; + bof_ = false; + } + return span(data, length); + } + }; + +} // namespace jsoncons + +#endif + diff --git a/include/jsoncons/typed_array_view.hpp b/include/jsoncons/typed_array_view.hpp new file mode 100644 index 0000000..d1b4906 --- /dev/null +++ b/include/jsoncons/typed_array_view.hpp @@ -0,0 +1,250 @@ +// Copyright 2018 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_TYPED_ARRAY_VIEW_HPP +#define JSONCONS_TYPED_ARRAY_VIEW_HPP + +#include // std::allocator +#include +#include +#include +#include +#include // std::enable_if +#include // std::array +#include // std::function +#include +#include +#include +#include +#include +#include +#include +#include +#include + +namespace jsoncons { + + struct uint8_array_arg_t {explicit uint8_array_arg_t() = default; }; + constexpr uint8_array_arg_t uint8_array_arg = uint8_array_arg_t(); + struct uint16_array_arg_t {explicit uint16_array_arg_t() = default; }; + struct uint32_array_arg_t {explicit uint32_array_arg_t() = default; }; + constexpr uint32_array_arg_t uint32_array_arg = uint32_array_arg_t(); + struct uint64_array_arg_t {explicit uint64_array_arg_t() = default; }; + constexpr uint64_array_arg_t uint64_array_arg = uint64_array_arg_t(); + struct int8_array_arg_t {explicit int8_array_arg_t() = default; }; + constexpr int8_array_arg_t int8_array_arg = int8_array_arg_t(); + struct int16_array_arg_t {explicit int16_array_arg_t() = default; }; + constexpr int16_array_arg_t int16_array_arg = int16_array_arg_t(); + struct int32_array_arg_t {explicit int32_array_arg_t() = default; }; + constexpr int32_array_arg_t int32_array_arg = int32_array_arg_t(); + struct int64_array_arg_t {explicit int64_array_arg_t() = default; }; + constexpr int64_array_arg_t int64_array_arg = int64_array_arg_t(); + constexpr uint16_array_arg_t uint16_array_arg = uint16_array_arg_t(); + struct half_array_arg_t {explicit half_array_arg_t() = default; }; + constexpr half_array_arg_t half_array_arg = half_array_arg_t(); + struct float_array_arg_t {explicit float_array_arg_t() = default; }; + constexpr float_array_arg_t float_array_arg = float_array_arg_t(); + struct double_array_arg_t {explicit double_array_arg_t() = default; }; + constexpr double_array_arg_t double_array_arg = double_array_arg_t(); + struct float128_array_arg_t {explicit float128_array_arg_t() = default; }; + constexpr float128_array_arg_t float128_array_arg = float128_array_arg_t(); + + enum class typed_array_type{uint8_value=1,uint16_value,uint32_value,uint64_value, + int8_value,int16_value,int32_value,int64_value, + half_value, float_value,double_value}; + + class typed_array_view + { + typed_array_type type_; + union + { + const uint8_t* uint8_data_; + const uint16_t* uint16_data_; + const uint32_t* uint32_data_; + const uint64_t* uint64_data_; + const int8_t* int8_data_; + const int16_t* int16_data_; + const int32_t* int32_data_; + const int64_t* int64_data_; + const float* float_data_; + const double* double_data_; + } data_; + std::size_t size_; + public: + + typed_array_view() + : type_(), data_(), size_(0) + { + } + + typed_array_view(const typed_array_view& other) + : type_(other.type_), data_(other.data_), size_(other.size()) + { + } + + typed_array_view(typed_array_view&& other) noexcept + { + swap(*this,other); + } + + typed_array_view(const uint8_t* data, std::size_t size) + : type_(typed_array_type::uint8_value), size_(size) + { + data_.uint8_data_ = data; + } + + typed_array_view(const uint16_t* data, std::size_t size) + : type_(typed_array_type::uint16_value), size_(size) + { + data_.uint16_data_ = data; + } + + typed_array_view(const uint32_t* data, std::size_t size) + : type_(typed_array_type::uint32_value), size_(size) + { + data_.uint32_data_ = data; + } + + typed_array_view(const uint64_t* data, std::size_t size) + : type_(typed_array_type::uint64_value), size_(size) + { + data_.uint64_data_ = data; + } + + typed_array_view(const int8_t* data, std::size_t size) + : type_(typed_array_type::int8_value), size_(size) + { + data_.int8_data_ = data; + } + + typed_array_view(const int16_t* data, std::size_t size) + : type_(typed_array_type::int16_value), size_(size) + { + data_.int16_data_ = data; + } + + typed_array_view(const int32_t* data, std::size_t size) + : type_(typed_array_type::int32_value), size_(size) + { + data_.int32_data_ = data; + } + + typed_array_view(const int64_t* data, std::size_t size) + : type_(typed_array_type::int64_value), size_(size) + { + data_.int64_data_ = data; + } + + typed_array_view(half_array_arg_t, const uint16_t* data, std::size_t size) + : type_(typed_array_type::half_value), size_(size) + { + data_.uint16_data_ = data; + } + + typed_array_view(const float* data, std::size_t size) + : type_(typed_array_type::float_value), size_(size) + { + data_.float_data_ = data; + } + + typed_array_view(const double* data, std::size_t size) + : type_(typed_array_type::double_value), size_(size) + { + data_.double_data_ = data; + } + + typed_array_view& operator=(const typed_array_view& other) + { + typed_array_view temp(other); + swap(*this,temp); + return *this; + } + + typed_array_type type() const {return type_;} + + std::size_t size() const + { + return size_; + } + + jsoncons::span data(uint8_array_arg_t) const + { + JSONCONS_ASSERT(type_ == typed_array_type::uint8_value); + return jsoncons::span(data_.uint8_data_, size_); + } + + jsoncons::span data(uint16_array_arg_t) const + { + JSONCONS_ASSERT(type_ == typed_array_type::uint16_value); + return jsoncons::span(data_.uint16_data_, size_); + } + + jsoncons::span data(uint32_array_arg_t) const + { + JSONCONS_ASSERT(type_ == typed_array_type::uint32_value); + return jsoncons::span(data_.uint32_data_, size_); + } + + jsoncons::span data(uint64_array_arg_t) const + { + JSONCONS_ASSERT(type_ == typed_array_type::uint64_value); + return jsoncons::span(data_.uint64_data_, size_); + } + + jsoncons::span data(int8_array_arg_t) const + { + JSONCONS_ASSERT(type_ == typed_array_type::int8_value); + return jsoncons::span(data_.int8_data_, size_); + } + + jsoncons::span data(int16_array_arg_t) const + { + JSONCONS_ASSERT(type_ == typed_array_type::int16_value); + return jsoncons::span(data_.int16_data_, size_); + } + + jsoncons::span data(int32_array_arg_t) const + { + JSONCONS_ASSERT(type_ == typed_array_type::int32_value); + return jsoncons::span(data_.int32_data_, size_); + } + + jsoncons::span data(int64_array_arg_t) const + { + JSONCONS_ASSERT(type_ == typed_array_type::int64_value); + return jsoncons::span(data_.int64_data_, size_); + } + + jsoncons::span data(half_array_arg_t) const + { + JSONCONS_ASSERT(type_ == typed_array_type::half_value); + return jsoncons::span(data_.uint16_data_, size_); + } + + jsoncons::span data(float_array_arg_t) const + { + JSONCONS_ASSERT(type_ == typed_array_type::float_value); + return jsoncons::span(data_.float_data_, size_); + } + + jsoncons::span data(double_array_arg_t) const + { + JSONCONS_ASSERT(type_ == typed_array_type::double_value); + return jsoncons::span(data_.double_data_, size_); + } + + friend void swap(typed_array_view& a, typed_array_view& b) noexcept + { + std::swap(a.data_,b.data_); + std::swap(a.type_,b.type_); + std::swap(a.size_,b.size_); + } + }; + +} // namespace jsoncons + +#endif + diff --git a/include/jsoncons/unicode_traits.hpp b/include/jsoncons/unicode_traits.hpp new file mode 100644 index 0000000..f45bafe --- /dev/null +++ b/include/jsoncons/unicode_traits.hpp @@ -0,0 +1,1330 @@ +// Copyright 2016 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/unicode_traits for latest version + +/* + * Includes code derived from Unicode, Inc decomposition code in ConvertUTF.h and ConvertUTF.c + * http://www.unicode.org/ + * + * "Unicode, Inc. hereby grants the right to freely use the information + * supplied in this file in the creation of products supporting the + * Unicode Standard." +*/ + +#ifndef JSONCONS_UNICODE_TRAITS_HPP +#define JSONCONS_UNICODE_TRAITS_HPP + +#include +#include +#include +#include +#include +#include +#include +#include + +namespace jsoncons { namespace unicode_traits { + + enum class encoding_kind {undetected,utf8,utf16le,utf16be,utf32le,utf32be}; + + inline + std::string to_string(encoding_kind encoding) + { + switch (encoding) + { + case encoding_kind::utf8: + return "utf8"; + case encoding_kind::utf16le: + return "utf16le"; + case encoding_kind::utf16be: + return "utf16be"; + case encoding_kind::utf32le: + return "utf32le"; + case encoding_kind::utf32be: + return "utf32be"; + default: + return "undetected"; + } + } + + template + struct detect_encoding_result + { + const Byte* ptr; + encoding_kind encoding; + }; + + template + typename std::enable_if::value,detect_encoding_result>::type + detect_encoding_from_bom(const CharT* data, std::size_t length) + { + const uint8_t bom_utf8[] = {0xef,0xbb,0xbf}; + const uint8_t bom_utf16le[] = {0xff,0xfe}; + const uint8_t bom_utf16be[] = {0xfe,0xff}; + const uint8_t bom_utf32le[] = {0xff,0xfe,0x00,0x00}; + const uint8_t bom_utf32be[] = {0x00,0x00,0xfe,0xff}; + + if (length >= 4 && !memcmp(data,bom_utf32le,4)) + { + return detect_encoding_result{data+4,encoding_kind::utf32le}; + } + else if (length >= 4 && !memcmp(data,bom_utf32be,4)) + { + return detect_encoding_result{data+4,encoding_kind::utf32be}; + } + else if (length >= 2 && !memcmp(data,bom_utf16le,2)) + { + return detect_encoding_result{data+2,encoding_kind::utf16le}; + } + else if (length >= 2 && !memcmp(data,bom_utf16be,2)) + { + return detect_encoding_result{data+2,encoding_kind::utf16be}; + } + else if (length >= 3 && !memcmp(data,bom_utf8,3)) + { + return detect_encoding_result{data+3,encoding_kind::utf8}; + } + else + { + return detect_encoding_result{data,encoding_kind::undetected}; + } + } + + template + typename std::enable_if::value || type_traits::is_char32::value,detect_encoding_result>::type + detect_encoding_from_bom(const CharT* data, std::size_t) + { + return detect_encoding_result{data,encoding_kind::undetected}; + } + + template + typename std::enable_if::value,detect_encoding_result>::type + detect_json_encoding(const CharT* data, std::size_t length) + { + detect_encoding_result r = detect_encoding_from_bom(data,length); + if (r.encoding != encoding_kind::undetected) + { + return r; + } + else if (length < 4) + { + return detect_encoding_result{data,encoding_kind::utf8}; + } + else if (*data == 0 && *(data+1) == 0 && *(data+2) == 0) + { + return detect_encoding_result{data,encoding_kind::utf32be}; + } + else if (*data == 0 && *(data+2) == 0) + { + return detect_encoding_result{data,encoding_kind::utf16be}; + } + else if (*(data+1) == 0 && *(data+2) == 0 && *(data+3) == 0) + { + return detect_encoding_result{data,encoding_kind::utf32le}; + } + else if (*(data+1) == 0 && *(data+3) == 0) + { + return detect_encoding_result{data,encoding_kind::utf16le}; + } + else + { + return detect_encoding_result{data,encoding_kind::utf8}; + } + } + + template + typename std::enable_if::value || type_traits::is_char32::value,detect_encoding_result>::type + detect_json_encoding(const CharT* data, std::size_t) + { + return detect_encoding_result{data,encoding_kind::undetected}; + } + + /* + * Magic values subtracted from a buffer value during UTF8 conversion. + * This table contains as many values as there might be trailing bytes + * in a UTF-8 sequence. Source: ConvertUTF.c + */ + const uint32_t offsets_from_utf8[6] = { 0x00000000UL, 0x00003080UL, 0x000E2080UL, + 0x03C82080UL, 0xFA082080UL, 0x82082080UL }; + + /* + * Once the bits are split out into bytes of UTF-8, this is a mask OR-ed + * into the first byte, depending on how many bytes follow. There are + * as many entries in this table as there are UTF-8 sequence types. + * (I.e., one byte sequence, two byte... etc.). Remember that sequencs + * for *legal* UTF-8 will be 4 or fewer bytes total. Source: ConvertUTF.c + */ + const uint8_t first_byte_mark[7] = { 0x00, 0x00, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC }; + + /* + * Index into the table below with the first byte of a UTF-8 sequence to + * get the number of trailing bytes that are supposed to follow it. + * Note that *legal* UTF-8 values can't have 4 or 5-bytes. The table is + * left as-is for anyone who may want to do such conversion, which was + * allowed in earlier algorithms. Source: ConvertUTF.c + */ + const uint8_t trailing_bytes_for_utf8[256] = { + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, + 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 3,3,3,3,3,3,3,3,4,4,4,4,5,5,5,5 + }; + + // Some fundamental constants. Source: ConvertUTF.h + const uint32_t replacement_char = 0x0000FFFD; + const uint32_t max_bmp = 0x0000FFFF; + const uint32_t max_utf16 = 0x0010FFFF; + const uint32_t max_utf32 = 0x7FFFFFFF; + const uint32_t max_legal_utf32 = 0x0010FFFF; + + const int half_shift = 10; // used for shifting by 10 bits + const uint32_t half_base = 0x0010000UL; + const uint32_t half_mask = 0x3FFUL; + + const uint16_t sur_high_start = 0xD800; + const uint16_t sur_high_end = 0xDBFF; + const uint16_t sur_low_start = 0xDC00; + const uint16_t sur_low_end = 0xDFFF; + + inline + static bool is_continuation_byte(unsigned char ch) + { + return (ch & 0xC0) == 0x80; + } + + inline + bool is_high_surrogate(uint32_t ch) noexcept + { + return (ch >= sur_high_start && ch <= sur_high_end); + } + + inline + bool is_low_surrogate(uint32_t ch) noexcept + { + return (ch >= sur_low_start && ch <= sur_low_end); + } + + inline + bool is_surrogate(uint32_t ch) noexcept + { + return (ch >= sur_high_start && ch <= sur_low_end); + } + + enum class conv_flags + { + strict = 0, + lenient + }; + + // conv_errc + + enum class conv_errc + { + success = 0, + over_long_utf8_sequence = 1, // over long utf8 sequence + expected_continuation_byte, // expected continuation byte + unpaired_high_surrogate, // unpaired high surrogate UTF-16 + illegal_surrogate_value, // UTF-16 surrogate values are illegal in UTF-32 + source_exhausted, // partial character in source, but hit end + source_illegal // source sequence is illegal/malformed + }; + + class Unicode_traits_error_category_impl_ + : public std::error_category + { + public: + virtual const char* name() const noexcept + { + return "unicode_traits conversion error"; + } + virtual std::string message(int ev) const + { + switch (static_cast(ev)) + { + case conv_errc::over_long_utf8_sequence: + return "Over long utf8 sequence"; + case conv_errc::expected_continuation_byte: + return "Expected continuation byte"; + case conv_errc::unpaired_high_surrogate: + return "Unpaired high surrogate UTF-16"; + case conv_errc::illegal_surrogate_value: + return "UTF-16 surrogate values are illegal in UTF-32"; + case conv_errc::source_exhausted: + return "Partial character in source, but hit end"; + case conv_errc::source_illegal: + return "Source sequence is illegal/malformed"; + default: + return ""; + break; + } + } + }; + + inline + const std::error_category& unicode_traits_error_category() + { + static Unicode_traits_error_category_impl_ instance; + return instance; + } + + inline + std::error_code make_error_code(conv_errc result) + { + return std::error_code(static_cast(result),unicode_traits_error_category()); + } + +} // unicode_traits +} // jsoncons + +namespace std { + template<> + struct is_error_code_enum : public true_type + { + }; +} + +namespace jsoncons { namespace unicode_traits { + + // utf8 + + template + typename std::enable_if::value, conv_errc>::type + is_legal_utf8(const CharT* first, std::size_t length) + { + uint8_t a; + const CharT* srcptr = first+length; + switch (length) { + default: + return conv_errc::over_long_utf8_sequence; + case 4: + if (((a = (*--srcptr))& 0xC0) != 0x80) + return conv_errc::expected_continuation_byte; + JSONCONS_FALLTHROUGH; + case 3: + if (((a = (*--srcptr))& 0xC0) != 0x80) + return conv_errc::expected_continuation_byte; + JSONCONS_FALLTHROUGH; + case 2: + if (((a = (*--srcptr))& 0xC0) != 0x80) + return conv_errc::expected_continuation_byte; + + switch (static_cast(*first)) + { + // no fall-through in this inner switch + case 0xE0: if (a < 0xA0) return conv_errc::source_illegal; break; + case 0xED: if (a > 0x9F) return conv_errc::source_illegal; break; + case 0xF0: if (a < 0x90) return conv_errc::source_illegal; break; + case 0xF4: if (a > 0x8F) return conv_errc::source_illegal; break; + default: if (a < 0x80) return conv_errc::source_illegal; + } + + JSONCONS_FALLTHROUGH; + case 1: + if (static_cast(*first) >= 0x80 && static_cast(*first) < 0xC2) + return conv_errc::source_illegal; + break; + } + if (static_cast(*first) > 0xF4) + return conv_errc::source_illegal; + + return conv_errc(); + } + + template using void_t = void; + + template + struct is_output_iterator : std::false_type {}; + + template + struct is_output_iterator::iterator_category, + decltype(*std::declval() = std::declval())>> : std::true_type {}; + + // is_same_size fixes issue with vs2013 + + // primary template + template + struct is_same_size : std::false_type + { + }; + + // specialization for non void types + template + struct is_same_size::value && !std::is_void::value>::type> + { + static constexpr bool value = (sizeof(T1) == sizeof(T2)); + }; + + // convert + + template + struct convert_result + { + const CharT* ptr; + conv_errc ec; + }; + + // to_codepoint + + template + typename std::enable_if::value && type_traits::is_char32::value, + convert_result>::type + to_codepoint(const CharT* first, const CharT* last, + CodepointT& ch, + conv_flags flags = conv_flags::strict) noexcept + { + ch = 0; + if (first >= last) + { + return convert_result{first, conv_errc::source_exhausted}; + } + conv_errc result = conv_errc(); + + unsigned short extra_bytes_to_read = trailing_bytes_for_utf8[static_cast(*first)]; + if (extra_bytes_to_read >= last - first) + { + result = conv_errc::source_exhausted; + return convert_result{first, result}; + } + // Do this check whether lenient or strict + if ((result=is_legal_utf8(first, extra_bytes_to_read+1)) != conv_errc()) + { + return convert_result{first, result}; + } + // The cases all fall through. See "Note A" below. + switch (extra_bytes_to_read) + { + case 5: + ch += static_cast(*first++); + ch <<= 6; + JSONCONS_FALLTHROUGH; + case 4: + ch += static_cast(*first++); + ch <<= 6; + JSONCONS_FALLTHROUGH; + case 3: + ch += static_cast(*first++); + ch <<= 6; + JSONCONS_FALLTHROUGH; + case 2: + ch += static_cast(*first++); + ch <<= 6; + JSONCONS_FALLTHROUGH; + case 1: + ch += static_cast(*first++); + ch <<= 6; + JSONCONS_FALLTHROUGH; + case 0: + ch += static_cast(*first++); + break; + } + ch -= offsets_from_utf8[extra_bytes_to_read]; + + if (ch <= max_legal_utf32) { + /* + * UTF-16 surrogate values are illegal in UTF-32, and anything + * over Plane 17 (> 0x10FFFF) is illegal. + */ + if (is_surrogate(ch) ) + { + if (flags == conv_flags::strict) + { + first -= (extra_bytes_to_read+1); // return to the illegal value itself + result = conv_errc::source_illegal; + return convert_result{first, result}; + } + else + { + ch = replacement_char; + } + } + } + else // i.e., ch > max_legal_utf32 + { + result = conv_errc::source_illegal; + ch = replacement_char; + } + + return convert_result{first,result} ; + } + + template + typename std::enable_if::value && type_traits::is_char32::value, + convert_result>::type + to_codepoint(const CharT* first, const CharT* last, + CodepointT& ch, + conv_flags flags = conv_flags::strict) noexcept + { + ch = 0; + if (first >= last) + { + return convert_result{first, conv_errc::source_exhausted}; + } + conv_errc result = conv_errc(); + + ch = *first++; + // If we have a surrogate pair, convert to UTF32 first. + if (is_high_surrogate(ch)) + { + // If the 16 bits following the high surrogate are in the first buffer... + if (first < last) + { + uint32_t ch2 = *first; + // If ptr's a low surrogate, convert to UTF32. + if (ch2 >= sur_low_start && ch2 <= sur_low_end ) + { + ch = ((ch - sur_high_start) << half_shift) + + (ch2 - sur_low_start) + half_base; + ++first; + } + else if (flags == conv_flags::strict) // ptr's an unpaired high surrogate + { + --first; /* return to the illegal value itself */ + result = conv_errc::source_illegal; + return convert_result{first, result}; + } + } + else + { /* We don't have the 16 bits following the high surrogate. */ + --first; /* return to the high surrogate */ + result = conv_errc::source_exhausted; + return convert_result{first, result}; + } + } else if (flags == conv_flags::strict) { + /* UTF-16 surrogate values are illegal in UTF-32 */ + if (is_low_surrogate(ch) ) + { + --first; /* return to the illegal value itself */ + result = conv_errc::source_illegal; + return convert_result{first, result}; + } + } + + return convert_result{first,result} ; + } + + template + typename std::enable_if::value && type_traits::is_char32::value, + convert_result>::type + to_codepoint(const CharT* first, const CharT* last, + CodepointT& ch, + conv_flags flags = conv_flags::strict) noexcept + { + ch = 0; + if (first >= last) + { + return convert_result{first, conv_errc::source_exhausted}; + } + conv_errc result = conv_errc(); + + ch = *first++; + if (flags == conv_flags::strict ) + { + /* UTF-16 surrogate values are illegal in UTF-32 */ + if (is_surrogate(ch)) + { + --first; /* return to the illegal value itself */ + result = conv_errc::illegal_surrogate_value; + return convert_result{first,result} ; + } + } + if (!(ch <= max_legal_utf32)) + { + ch = replacement_char; + result = conv_errc::source_illegal; + } + + return convert_result{first,result} ; + } + + // convert + + template + typename std::enable_if::value + && type_traits::is_back_insertable::value + && type_traits::is_char8::value, + convert_result>::type + convert(const CharT* data, std::size_t length, Container& target, conv_flags flags=conv_flags::strict) + { + (void)flags; + + conv_errc result = conv_errc(); + const CharT* last = data + length; + while (data != last) + { + std::size_t len = trailing_bytes_for_utf8[static_cast(*data)] + 1; + if (len > (std::size_t)(last - data)) + { + return convert_result{data, conv_errc::source_exhausted}; + } + if ((result=is_legal_utf8(data, len)) != conv_errc()) + { + return convert_result{data,result}; + } + + switch (len) { + case 4: target.push_back(static_cast(*data++)); + JSONCONS_FALLTHROUGH; + case 3: target.push_back(static_cast(*data++)); + JSONCONS_FALLTHROUGH; + case 2: target.push_back(static_cast(*data++)); + JSONCONS_FALLTHROUGH; + case 1: target.push_back(static_cast(*data++)); + } + } + return convert_result{data,result} ; + } + + template + typename std::enable_if::value + && type_traits::is_back_insertable::value + && type_traits::is_char16::value, + convert_result>::type + convert(const CharT* data, std::size_t length, + Container& target, + conv_flags flags = conv_flags::strict) + { + conv_errc result = conv_errc(); + + const CharT* last = data + length; + while (data != last) + { + unsigned short extra_bytes_to_read = trailing_bytes_for_utf8[static_cast(*data)]; + if (extra_bytes_to_read >= last - data) + { + result = conv_errc::source_exhausted; + break; + } + /* Do this check whether lenient or strict */ + if ((result=is_legal_utf8(data, extra_bytes_to_read+1)) != conv_errc()) + { + break; + } + /* + * The cases all fall through. See "Note A" below. + */ + uint32_t ch = 0; + switch (extra_bytes_to_read) { + case 5: ch += static_cast(*data++); ch <<= 6; /* remember, illegal UTF-8 */ + JSONCONS_FALLTHROUGH; + case 4: ch += static_cast(*data++); ch <<= 6; /* remember, illegal UTF-8 */ + JSONCONS_FALLTHROUGH; + case 3: ch += static_cast(*data++); ch <<= 6; + JSONCONS_FALLTHROUGH; + case 2: ch += static_cast(*data++); ch <<= 6; + JSONCONS_FALLTHROUGH; + case 1: ch += static_cast(*data++); ch <<= 6; + JSONCONS_FALLTHROUGH; + case 0: ch += static_cast(*data++); + break; + } + ch -= offsets_from_utf8[extra_bytes_to_read]; + + if (ch <= max_bmp) { /* Target is a character <= 0xFFFF */ + /* UTF-16 surrogate values are illegal in UTF-32 */ + if (is_surrogate(ch) ) + { + if (flags == conv_flags::strict) { + data -= (extra_bytes_to_read+1); /* return to the illegal value itself */ + result = conv_errc::source_illegal; + break; + } else { + target.push_back(replacement_char); + } + } else { + target.push_back((uint16_t)ch); /* normal case */ + } + } else if (ch > max_utf16) { + if (flags == conv_flags::strict) { + result = conv_errc::source_illegal; + data -= (extra_bytes_to_read+1); /* return to the start */ + break; /* Bail out; shouldn't continue */ + } else { + target.push_back(replacement_char); + } + } else { + /* target is a character in range 0xFFFF - 0x10FFFF. */ + ch -= half_base; + target.push_back((uint16_t)((ch >> half_shift) + sur_high_start)); + target.push_back((uint16_t)((ch & half_mask) + sur_low_start)); + } + } + return convert_result{data,result} ; + } + + template + typename std::enable_if::value + && type_traits::is_back_insertable::value + && type_traits::is_char32::value, + convert_result>::type + convert(const CharT* data, std::size_t length, + Container& target, + conv_flags flags = conv_flags::strict) + { + conv_errc result = conv_errc(); + + const CharT* last = data + length; + while (data < last) + { + uint32_t ch = 0; + unsigned short extra_bytes_to_read = trailing_bytes_for_utf8[static_cast(*data)]; + if (extra_bytes_to_read >= last - data) + { + result = conv_errc::source_exhausted; + break; + } + /* Do this check whether lenient or strict */ + if ((result=is_legal_utf8(data, extra_bytes_to_read+1)) != conv_errc()) + { + break; + } + /* + * The cases all fall through. See "Note A" below. + */ + switch (extra_bytes_to_read) + { + case 5: + ch += static_cast(*data++); + ch <<= 6; + JSONCONS_FALLTHROUGH; + case 4: + ch += static_cast(*data++); + ch <<= 6; + JSONCONS_FALLTHROUGH; + case 3: + ch += static_cast(*data++); + ch <<= 6; + JSONCONS_FALLTHROUGH; + case 2: + ch += static_cast(*data++); + ch <<= 6; + JSONCONS_FALLTHROUGH; + case 1: + ch += static_cast(*data++); + ch <<= 6; + JSONCONS_FALLTHROUGH; + case 0: + ch += static_cast(*data++); + break; + } + ch -= offsets_from_utf8[extra_bytes_to_read]; + + if (ch <= max_legal_utf32) { + /* + * UTF-16 surrogate values are illegal in UTF-32, and anything + * over Plane 17 (> 0x10FFFF) is illegal. + */ + if (is_surrogate(ch) ) + { + if (flags == conv_flags::strict) { + data -= (extra_bytes_to_read+1); /* return to the illegal value itself */ + result = conv_errc::source_illegal; + break; + } else { + target.push_back(replacement_char); + } + } else { + target.push_back(ch); + } + } else { /* i.e., ch > max_legal_utf32 */ + result = conv_errc::source_illegal; + target.push_back(replacement_char); + } + } + return convert_result{data,result} ; + } + + // utf16 + + template + typename std::enable_if::value + && type_traits::is_back_insertable::value + && type_traits::is_char8::value, + convert_result>::type + convert(const CharT* data, std::size_t length, + Container& target, + conv_flags flags = conv_flags::strict) { + conv_errc result = conv_errc(); + + const CharT* last = data + length; + while (data < last) { + unsigned short bytes_to_write = 0; + const uint32_t byteMask = 0xBF; + const uint32_t byteMark = 0x80; + uint32_t ch = *data++; + /* If we have a surrogate pair, convert to uint32_t data. */ + if (is_high_surrogate(ch)) + { + /* If the 16 bits following the high surrogate are in the data buffer... */ + if (data < last) { + uint32_t ch2 = *data; + /* If ptr's a low surrogate, convert to uint32_t. */ + if (ch2 >= sur_low_start && ch2 <= sur_low_end) { + ch = ((ch - sur_high_start) << half_shift) + + (ch2 - sur_low_start) + half_base; + ++data; + } else if (flags == conv_flags::strict) { /* ptr's an unpaired high surrogate */ + --data; /* return to the illegal value itself */ + result = conv_errc::unpaired_high_surrogate; + break; + } + } else { /* We don't have the 16 bits following the high surrogate. */ + --data; /* return to the high surrogate */ + result = conv_errc::source_exhausted; + break; + } + } else if (flags == conv_flags::strict) { + /* UTF-16 surrogate values are illegal in UTF-32 */ + if (is_low_surrogate(ch)) + { + --data; /* return to the illegal value itself */ + result = conv_errc::source_illegal; + break; + } + } + /* Figure out how many bytes the result will require */ + if (ch < (uint32_t)0x80) { + bytes_to_write = 1; + } else if (ch < (uint32_t)0x800) { + bytes_to_write = 2; + } else if (ch < (uint32_t)0x10000) { + bytes_to_write = 3; + } else if (ch < (uint32_t)0x110000) { + bytes_to_write = 4; + } else { + bytes_to_write = 3; + ch = replacement_char; + } + + uint8_t byte1 = 0; + uint8_t byte2 = 0; + uint8_t byte3 = 0; + uint8_t byte4 = 0; + + switch (bytes_to_write) { // note: everything falls through + case 4: byte4 = (uint8_t)((ch | byteMark) & byteMask); ch >>= 6; + JSONCONS_FALLTHROUGH; + case 3: byte3 = (uint8_t)((ch | byteMark) & byteMask); ch >>= 6; + JSONCONS_FALLTHROUGH; + case 2: byte2 = (uint8_t)((ch | byteMark) & byteMask); ch >>= 6; + JSONCONS_FALLTHROUGH; + case 1: byte1 = (uint8_t)(ch | first_byte_mark[bytes_to_write]); + break; + } + switch (bytes_to_write) + { + case 4: + target.push_back(byte1); + target.push_back(byte2); + target.push_back(byte3); + target.push_back(byte4); + break; + case 3: + target.push_back(byte1); + target.push_back(byte2); + target.push_back(byte3); + break; + case 2: + target.push_back(byte1); + target.push_back(byte2); + break; + case 1: + target.push_back(byte1); + break; + } + } + return convert_result{data,result} ; + } + + template + typename std::enable_if::value + && type_traits::is_back_insertable::value + && type_traits::is_char16::value, + convert_result>::type + convert(const CharT* data, std::size_t length, + Container& target, + conv_flags flags = conv_flags::strict) + { + conv_errc result = conv_errc(); + + const CharT* last = data + length; + while (data != last) + { + uint32_t ch = *data++; + /* If we have a surrogate pair, convert to uint32_t data. */ + if (is_high_surrogate(ch)) + { + /* If the 16 bits following the high surrogate are in the data buffer... */ + if (data < last) { + uint32_t ch2 = *data; + /* If ptr's a low surrogate, */ + if (ch2 >= sur_low_start && ch2 <= sur_low_end) { + target.push_back((uint16_t)ch); + target.push_back((uint16_t)ch2); + ++data; + } else if (flags == conv_flags::strict) { /* ptr's an unpaired high surrogate */ + --data; /* return to the illegal value itself */ + result = conv_errc::unpaired_high_surrogate; + break; + } + } else { /* We don't have the 16 bits following the high surrogate. */ + --data; /* return to the high surrogate */ + result = conv_errc::source_exhausted; + break; + } + } else if (is_low_surrogate(ch)) + { + // illegal leading low surrogate + if (flags == conv_flags::strict) { + --data; /* return to the illegal value itself */ + result = conv_errc::source_illegal; + break; + } + else + { + target.push_back((uint16_t)ch); + } + } + else + { + target.push_back((uint16_t)ch); + } + } + return convert_result{data,result} ; + } + + template + typename std::enable_if::value + && type_traits::is_back_insertable::value + && type_traits::is_char32::value, + convert_result>::type + convert(const CharT* data, std::size_t length, + Container& target, + conv_flags flags = conv_flags::strict) + { + conv_errc result = conv_errc(); + + const CharT* last = data + length; + while (data != last) + { + uint32_t ch = *data++; + /* If we have a surrogate pair, convert to UTF32 data. */ + if (is_high_surrogate(ch)) + { + /* If the 16 bits following the high surrogate are in the data buffer... */ + if (data < last) { + uint32_t ch2 = *data; + /* If ptr's a low surrogate, convert to UTF32. */ + if (ch2 >= sur_low_start && ch2 <= sur_low_end ) + { + ch = ((ch - sur_high_start) << half_shift) + + (ch2 - sur_low_start) + half_base; + ++data; + } else if (flags == conv_flags::strict) { /* ptr's an unpaired high surrogate */ + --data; /* return to the illegal value itself */ + result = conv_errc::source_illegal; + break; + } + } else { /* We don't have the 16 bits following the high surrogate. */ + --data; /* return to the high surrogate */ + result = conv_errc::source_exhausted; + break; + } + } else if (flags == conv_flags::strict) { + /* UTF-16 surrogate values are illegal in UTF-32 */ + if (is_low_surrogate(ch) ) + { + --data; /* return to the illegal value itself */ + result = conv_errc::source_illegal; + break; + } + } + target.push_back(ch); + } + return convert_result{data,result} ; + } + + // utf32 + + template + typename std::enable_if::value + && type_traits::is_back_insertable::value + && type_traits::is_char8::value, + convert_result>::type + convert(const CharT* data, std::size_t length, + Container& target, + conv_flags flags = conv_flags::strict) + { + conv_errc result = conv_errc(); + const CharT* last = data + length; + while (data < last) + { + unsigned short bytes_to_write = 0; + const uint32_t byteMask = 0xBF; + const uint32_t byteMark = 0x80; + uint32_t ch = *data++; + if (flags == conv_flags::strict ) + { + /* UTF-16 surrogate values are illegal in UTF-32 */ + if (is_surrogate(ch)) + { + --data; /* return to the illegal value itself */ + result = conv_errc::illegal_surrogate_value; + break; + } + } + /* + * Figure out how many bytes the result will require. Turn any + * illegally large UTF32 things (> Plane 17) into replacement chars. + */ + if (ch < (uint32_t)0x80) { bytes_to_write = 1; + } else if (ch < (uint32_t)0x800) { bytes_to_write = 2; + } else if (ch < (uint32_t)0x10000) { bytes_to_write = 3; + } else if (ch <= max_legal_utf32) { bytes_to_write = 4; + } else { + bytes_to_write = 3; + ch = replacement_char; + result = conv_errc::source_illegal; + } + + uint8_t byte1 = 0; + uint8_t byte2 = 0; + uint8_t byte3 = 0; + uint8_t byte4 = 0; + + switch (bytes_to_write) { + case 4: + byte4 = (uint8_t)((ch | byteMark) & byteMask); ch >>= 6; + JSONCONS_FALLTHROUGH; + case 3: + byte3 = (uint8_t)((ch | byteMark) & byteMask); ch >>= 6; + JSONCONS_FALLTHROUGH; + case 2: + byte2 = (uint8_t)((ch | byteMark) & byteMask); ch >>= 6; + JSONCONS_FALLTHROUGH; + case 1: + byte1 = (uint8_t) (ch | first_byte_mark[bytes_to_write]); + break; + } + + switch (bytes_to_write) + { + case 4: + target.push_back(byte1); + target.push_back(byte2); + target.push_back(byte3); + target.push_back(byte4); + break; + case 3: + target.push_back(byte1); + target.push_back(byte2); + target.push_back(byte3); + break; + case 2: + target.push_back(byte1); + target.push_back(byte2); + break; + case 1: + target.push_back(byte1); + break; + } + } + return convert_result{data,result} ; + } + + template + typename std::enable_if::value + && type_traits::is_back_insertable::value + && type_traits::is_char16::value, + convert_result>::type + convert(const CharT* data, std::size_t length, + Container& target, + conv_flags flags = conv_flags::strict) + { + conv_errc result = conv_errc(); + + const CharT* last = data + length; + while (data != last) + { + uint32_t ch = *data++; + if (ch <= max_bmp) { /* Target is a character <= 0xFFFF */ + /* UTF-16 surrogate values are illegal in UTF-32; 0xffff or 0xfffe are both reserved values */ + if (is_surrogate(ch) ) + { + if (flags == conv_flags::strict) { + --data; /* return to the illegal value itself */ + result = conv_errc::source_illegal; + break; + } else { + target.push_back(replacement_char); + } + } else { + target.push_back((uint16_t)ch); /* normal case */ + } + } else if (ch > max_legal_utf32) { + if (flags == conv_flags::strict) { + result = conv_errc::source_illegal; + } else { + target.push_back(replacement_char); + } + } else { + /* target is a character in range 0xFFFF - 0x10FFFF. */ + ch -= half_base; + target.push_back((uint16_t)((ch >> half_shift) + sur_high_start)); + target.push_back((uint16_t)((ch & half_mask) + sur_low_start)); + } + } + return convert_result{data,result} ; + } + + template + typename std::enable_if::value + && type_traits::is_back_insertable::value + && type_traits::is_char32::value, + convert_result>::type + convert(const CharT* data, std::size_t length, + Container& target, + conv_flags flags = conv_flags::strict) + { + conv_errc result = conv_errc(); + + const CharT* last = data + length; + while (data != last) + { + uint32_t ch = *data++; + if (flags == conv_flags::strict ) + { + /* UTF-16 surrogate values are illegal in UTF-32 */ + if (is_surrogate(ch)) + { + --data; /* return to the illegal value itself */ + result = conv_errc::illegal_surrogate_value; + break; + } + } + if (ch <= max_legal_utf32) + { + target.push_back(ch); + } + else + { + target.push_back(replacement_char); + result = conv_errc::source_illegal; + } + } + return convert_result{data,result} ; + } + + // validate + + template + typename std::enable_if::value, + convert_result>::type + validate(const CharT* data, std::size_t length) noexcept + { + conv_errc result = conv_errc(); + const CharT* last = data + length; + while (data != last) + { + std::size_t len = static_cast(trailing_bytes_for_utf8[static_cast(*data)]) + 1; + if (len > (std::size_t)(last - data)) + { + return convert_result{data, conv_errc::source_exhausted}; + } + if ((result=is_legal_utf8(data, len)) != conv_errc()) + { + return convert_result{data,result} ; + } + data += len; + } + return convert_result{data,result} ; + } + + // utf16 + + template + typename std::enable_if::value, + convert_result>::type + validate(const CharT* data, std::size_t length) noexcept + { + conv_errc result = conv_errc(); + + const CharT* last = data + length; + while (data != last) + { + uint32_t ch = *data++; + /* If we have a surrogate pair, validate to uint32_t data. */ + if (is_high_surrogate(ch)) + { + /* If the 16 bits following the high surrogate are in the data buffer... */ + if (data < last) { + uint32_t ch2 = *data; + /* If ptr's a low surrogate, */ + if (ch2 >= sur_low_start && ch2 <= sur_low_end) { + ++data; + } else { + --data; /* return to the illegal value itself */ + result = conv_errc::unpaired_high_surrogate; + break; + } + } + else // We don't have the 16 bits following the high surrogate. + { + --data; /* return to the high surrogate */ + result = conv_errc::source_exhausted; + break; + } + } + else if (is_low_surrogate(ch)) + { + /* UTF-16 surrogate values are illegal in UTF-32 */ + --data; /* return to the illegal value itself */ + result = conv_errc::source_illegal; + break; + } + } + return convert_result{data,result} ; + } + + // utf32 + + template + typename std::enable_if::value, + convert_result>::type + validate(const CharT* data, std::size_t length) noexcept + { + conv_errc result = conv_errc(); + + const CharT* last = data + length; + while (data != last) + { + uint32_t ch = *data++; + /* UTF-16 surrogate values are illegal in UTF-32 */ + if (is_surrogate(ch)) + { + --data; /* return to the illegal value itself */ + result = conv_errc::illegal_surrogate_value; + break; + } + if (!(ch <= max_legal_utf32)) + { + result = conv_errc::source_illegal; + } + } + return convert_result{data, result} ; + } + + enum class encoding {u8,u16le,u16be,u32le,u32be,undetected}; + + template + struct determine_encoding_result + { + Iterator it; + encoding ec; + }; + + template + typename std::enable_if::value_type>::value && sizeof(typename std::iterator_traits::value_type) == sizeof(uint8_t), + determine_encoding_result>::type + detect_encoding(Iterator first, Iterator last) noexcept + { + Iterator it1 = first; + if (std::distance(first,last) < 4) + { + if (std::distance(first,last) == 3) + { + Iterator it2 = ++first; + Iterator it3 = ++first; + if (static_cast(*it1) == 0xEF && static_cast(*it2) == 0xBB && static_cast(*it3) == 0xBF) + { + return determine_encoding_result{last,encoding::u8}; + } + } + return determine_encoding_result{it1,encoding::undetected}; + } + else + { + Iterator it2 = ++first; + Iterator it3 = ++first; + Iterator it4 = ++first; + + uint32_t bom = static_cast(*it1) | (static_cast(*it2) << 8) | (static_cast(*it3) << 16) | (static_cast(*it4) << 24); + if (bom == 0xFFFE0000) + { + return determine_encoding_result{it4++,encoding::u32be}; + } + else if (bom == 0x0000FEFF) + { + return determine_encoding_result{first,encoding::u32le}; + } + else if ((bom & 0xFFFF) == 0xFFFE) + { + return determine_encoding_result{it3,encoding::u16be}; + } + else if ((bom & 0xFFFF) == 0xFEFF) + { + return determine_encoding_result{it3,encoding::u16le}; + } + else if ((bom & 0xFFFFFF) == 0xBFBBEF) + { + return determine_encoding_result{it4,encoding::u8}; + } + else + { + uint32_t pattern = (static_cast(*it1) ? 1 : 0) | (static_cast(*it2) ? 2 : 0) | (static_cast(*it3) ? 4 : 0) | (static_cast(*it4) ? 8 : 0); + switch (pattern) { + case 0x08: + return determine_encoding_result{it1,encoding::u32be}; + case 0x0A: + return determine_encoding_result{it1,encoding::u16be}; + case 0x01: + return determine_encoding_result{it1,encoding::u32le}; + case 0x05: + return determine_encoding_result{it1,encoding::u16le}; + case 0x0F: + return determine_encoding_result{it1,encoding::u8}; + default: + return determine_encoding_result{it1,encoding::undetected}; + } + } + } + } + + // count_codepoints + + template + typename std::enable_if::value || type_traits::is_char16::value || type_traits::is_char32::value, std::size_t>::type + count_codepoints(const CharT* data, std::size_t length, + conv_flags flags = conv_flags::strict) noexcept + { + conv_errc ec = conv_errc(); + + std::size_t count = 0; + const CharT* ptr = data; + const CharT* last = data + length; + + for (; ptr < last; ++count) + { + uint32_t cp = 0; + auto r = to_codepoint(ptr, last, cp, flags); + if (r.ec != conv_errc()) + { + ec = r.ec; + break; + } + ptr = r.ptr; + } + return ec == conv_errc() && ptr == last ? count : 0; + } + +} // unicode_traits +} // jsoncons + +#endif + diff --git a/include/jsoncons/uri.hpp b/include/jsoncons/uri.hpp new file mode 100644 index 0000000..51249ef --- /dev/null +++ b/include/jsoncons/uri.hpp @@ -0,0 +1,635 @@ +// Copyright 2020 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_URI_HPP +#define JSONCONS_URI_HPP + +#include // std::string +#include +#include +#include +#include + +namespace jsoncons { + + class uri + { + using part_type = std::pair; + + std::string uri_; + part_type scheme_; + part_type userinfo_; + part_type host_; + part_type port_; + part_type path_; + part_type query_; + part_type fragment_; + public: + + uri() = default; + + uri(const std::string& uri) + { + *this = parse(uri); + } + + uri(jsoncons::string_view scheme, + jsoncons::string_view userinfo, + jsoncons::string_view host, + jsoncons::string_view port, + jsoncons::string_view path, + jsoncons::string_view query, + jsoncons::string_view fragment) + { + if (!scheme.empty()) + { + uri_.append(std::string(scheme)); + scheme_.second = uri_.length(); + } + if (!userinfo.empty() || !host.empty() || !port.empty()) + { + if (!scheme.empty()) + { + uri_.append("://"); + } + + if (!userinfo.empty()) + { + userinfo_.first = uri_.length(); + uri_.append(std::string(userinfo)); + userinfo_.second = uri_.length(); + uri_.append("@"); + } + else + { + userinfo_.first = userinfo_.second = uri_.length(); + } + + if (!host.empty()) + { + host_.first = uri_.length(); + uri_.append(std::string(host)); + host_.second = uri_.length(); + } + else + { + JSONCONS_THROW(json_runtime_error("uri error.")); + } + + if (!port.empty()) + { + uri_.append(":"); + port_.first = uri_.length(); + uri_.append(std::string(port)); + port_.second = uri_.length(); + } + else + { + port_.first = port_.second = uri_.length(); + } + } + else + { + userinfo_.first = userinfo_.second = uri_.length(); + host_.first = host_.second = uri_.length(); + port_.first = port_.second = uri_.length(); + if (!scheme.empty()) + { + if (!path.empty() || !query.empty() || !fragment.empty()) + { + uri_.append(":"); + } + else + { + JSONCONS_THROW(json_runtime_error("uri error.")); + } + } + } + + if (!path.empty()) + { + // if the URI is not opaque and the path is not already prefixed + // with a '/', add one. + path_.first = uri_.length(); + if (!host.empty() && (path.front() != '/')) + { + uri_.push_back('/'); + } + uri_.append(std::string(path)); + path_.second = uri_.length(); + } + else + { + path_.first = path_.second = uri_.length(); + } + + if (!query.empty()) + { + uri_.append("?"); + query_.first = uri_.length(); + uri_.append(std::string(query)); + query_.second = uri_.length(); + } + else + { + query_.first = query_.second = uri_.length(); + } + + if (!fragment.empty()) + { + uri_.append("#"); + fragment_.first = uri_.length(); + uri_.append(std::string(fragment)); + fragment_.second = uri_.length(); + } + else + { + fragment_.first = fragment_.second = uri_.length(); + } + } + + const std::string& string() const + { + return uri_; + } + + bool is_absolute() const noexcept + { + return scheme_.first != scheme_.second; + } + + bool is_opaque() const noexcept + { + return is_absolute() && !authority().empty(); + } + + string_view base() const noexcept { return string_view(uri_.data()+scheme_.first,(path_.second-scheme_.first)); } + + string_view scheme() const noexcept { return string_view(uri_.data()+scheme_.first,(scheme_.second-scheme_.first)); } + + string_view userinfo() const noexcept { return string_view(uri_.data()+userinfo_.first,(userinfo_.second-userinfo_.first)); } + + string_view host() const noexcept { return string_view(uri_.data()+host_.first,(host_.second-host_.first)); } + + string_view port() const noexcept { return string_view(uri_.data()+port_.first,(port_.second-port_.first)); } + + string_view path() const noexcept { return string_view(uri_.data()+path_.first,(path_.second-path_.first)); } + + string_view query() const noexcept { return string_view(uri_.data()+query_.first,(query_.second-query_.first)); } + + string_view fragment() const noexcept { return string_view(uri_.data()+fragment_.first,(fragment_.second-fragment_.first)); } + + string_view authority() const noexcept { return string_view(uri_.data()+userinfo_.first,(port_.second-userinfo_.first)); } + + uri resolve(const uri& base) const + { + // This implementation uses the psuedo-code given in + // http://tools.ietf.org/html/rfc3986#section-5.2.2 + + if (is_absolute() && !is_opaque()) + { + return *this; + } + + if (is_opaque()) + { + return *this; + } + + std::string userinfo, host, port, path, query, fragment; + + if (!authority().empty()) + { + // g -> http://g + if (!this->userinfo().empty()) + { + userinfo = std::string(this->userinfo()); + } + + if (!this->host().empty()) + { + host = std::string(this->host()); + } + + if (!this->port().empty()) + { + port = std::string(this->port()); + } + + if (!this->path().empty()) + { + path = remove_dot_segments(this->path()); + } + + if (!this->query().empty()) + { + query = std::string(this->query()); + } + } + else + { + if (this->path().empty()) + { + if (!base.path().empty()) + { + path = std::string(base.path()); + } + + if (!this->query().empty()) + { + query = std::string(this->query()); + } + else if (!base.query().empty()) + { + query = std::string(base.query()); + } + } + else + { + if (this->path().front() == '/') + { + path = remove_dot_segments(this->path()); + } + else + { + path = merge_paths(base, *this); + } + + if (!this->query().empty()) + { + query = std::string(this->query()); + } + } + + if (!base.userinfo().empty()) + { + userinfo = std::string(base.userinfo()); + } + + if (!base.host().empty()) + { + host = std::string(base.host()); + } + + if (!base.port().empty()) + { + port = std::string(base.port()); + } + } + + if (!this->fragment().empty()) + { + fragment = std::string(this->fragment()); + } + + return uri(std::string(base.scheme()), userinfo, host, port, path, query, fragment); + } + + int compare(const uri& other) const + { + int result = scheme().compare(other.scheme()); + if (result != 0) return result; + result = userinfo().compare(other.userinfo()); + if (result != 0) return result; + result = host().compare(other.host()); + if (result != 0) return result; + result = port().compare(other.port()); + if (result != 0) return result; + result = path().compare(other.path()); + if (result != 0) return result; + result = query().compare(other.query()); + if (result != 0) return result; + result = fragment().compare(other.fragment()); + + return result; + } + + friend bool operator==(const uri& lhs, const uri& rhs) + { + return lhs.compare(rhs) == 0; + } + + friend bool operator!=(const uri& lhs, const uri& rhs) + { + return lhs.compare(rhs) != 0; + } + + friend bool operator<(const uri& lhs, const uri& rhs) + { + return lhs.compare(rhs) < 0; + } + + friend bool operator<=(const uri& lhs, const uri& rhs) + { + return lhs.compare(rhs) <= 0; + } + + friend bool operator>(const uri& lhs, const uri& rhs) + { + return lhs.compare(rhs) > 0; + } + + friend bool operator>=(const uri& lhs, const uri& rhs) + { + return lhs.compare(rhs) >= 0; + } + + private: + enum class parse_state {expect_scheme, + expect_first_slash, + expect_second_slash, + expect_authority, + expect_host_ipv6, + expect_userinfo, + expect_host, + expect_port, + expect_path, + expect_query, + expect_fragment}; + + uri(const std::string& uri, part_type scheme, part_type userinfo, + part_type host, part_type port, part_type path, + part_type query, part_type fragment) + : uri_(uri), scheme_(scheme), userinfo_(userinfo), + host_(host), port_(port), path_(path), + query_(query), fragment_(fragment) + { + } + + static uri parse(const std::string& s) + { + part_type scheme; + part_type userinfo; + part_type host; + part_type port; + part_type path; + part_type query; + part_type fragment; + + std::size_t start = 0; + + parse_state state = parse_state::expect_scheme; + for (std::size_t i = 0; i < s.size(); ++i) + { + char c = s[i]; + switch (state) + { + case parse_state::expect_scheme: + switch (c) + { + case ':': + scheme = std::make_pair(start,i); + state = parse_state::expect_first_slash; + start = i; + break; + case '#': + userinfo = std::make_pair(start,start); + host = std::make_pair(start,start); + port = std::make_pair(start,start); + path = std::make_pair(start,i); + query = std::make_pair(i,i); + state = parse_state::expect_fragment; + start = i+1; + break; + default: + break; + } + break; + case parse_state::expect_first_slash: + switch (c) + { + case '/': + state = parse_state::expect_second_slash; + break; + default: + start = i; + state = parse_state::expect_path; + break; + } + break; + case parse_state::expect_second_slash: + switch (c) + { + case '/': + state = parse_state::expect_authority; + start = i+1; + break; + default: + break; + } + break; + case parse_state::expect_authority: + switch (c) + { + case '[': + state = parse_state::expect_host_ipv6; + start = i+1; + break; + default: + state = parse_state::expect_userinfo; + start = i; + --i; + break; + } + break; + case parse_state::expect_host_ipv6: + switch (c) + { + case ']': + userinfo = std::make_pair(start,start); + host = std::make_pair(start,i); + port = std::make_pair(i,i); + state = parse_state::expect_path; + start = i+1; + break; + default: + break; + } + break; + case parse_state::expect_userinfo: + switch (c) + { + case '@': + userinfo = std::make_pair(start,i); + state = parse_state::expect_host; + start = i+1; + break; + case ':': + userinfo = std::make_pair(start,start); + host = std::make_pair(start,i); + state = parse_state::expect_port; + start = i+1; + break; + case '/': + userinfo = std::make_pair(start,start); + host = std::make_pair(start,i); + port = std::make_pair(i,i); + state = parse_state::expect_path; + start = i; + break; + default: + break; + } + break; + case parse_state::expect_host: + switch (c) + { + case ':': + host = std::make_pair(start,i); + state = parse_state::expect_port; + start = i+1; + break; + default: + break; + } + break; + case parse_state::expect_port: + switch (c) + { + case '/': + port = std::make_pair(start,i); + state = parse_state::expect_path; + start = i; + break; + default: + break; + } + break; + case parse_state::expect_path: + switch (c) + { + case '?': + path = std::make_pair(start,i); + state = parse_state::expect_query; + start = i+1; + break; + case '#': + path = std::make_pair(start,i); + query = std::make_pair(start,start); + state = parse_state::expect_fragment; + start = i+1; + break; + default: + break; + } + break; + case parse_state::expect_query: + switch (c) + { + case '#': + query = std::make_pair(start,i); + state = parse_state::expect_fragment; + start = i+1; + break; + default: + break; + } + break; + case parse_state::expect_fragment: + break; + } + } + switch (state) + { + case parse_state::expect_scheme: + userinfo = std::make_pair(start,start); + host = std::make_pair(start,start); + port = std::make_pair(start,start); + path = std::make_pair(start,s.size()); + break; + case parse_state::expect_userinfo: + userinfo = std::make_pair(start,start); + host = std::make_pair(start,start); + port = std::make_pair(start,start); + path = std::make_pair(start,s.size()); + break; + case parse_state::expect_path: + path = std::make_pair(start,s.size()); + break; + case parse_state::expect_query: + query = std::make_pair(start,s.size()); + break; + case parse_state::expect_fragment: + fragment = std::make_pair(start,s.size()); + break; + default: + JSONCONS_THROW(std::invalid_argument("Invalid uri")); + break; + } + + return uri(s, scheme, userinfo, host, port, path, query, fragment); + } + + static std::string remove_dot_segments(const jsoncons::string_view& input) + { + std::string result = std::string(input); +/* + std::size_t pos = 0; + while (pos < input.size()) + { + if (input.compare(0, 3, "../")) + { + network_boost::erase_head(input, 3); + } else if (network_boost::starts_with(input, "./")) { + network_boost::erase_head(input, 2); + } else if (network_boost::starts_with(input, "/./")) { + network_boost::replace_head(input, 3, "/"); + } else if (input == "/.") { + network_boost::replace_head(input, 2, "/"); + } else if (network_boost::starts_with(input, "/../")) { + network_boost::erase_head(input, 3); + remove_last_segment(result); + } else if (network_boost::starts_with(input, "/..")) { + network_boost::replace_head(input, 3, "/"); + remove_last_segment(result); + } else if (network_boost::algorithm::all(input, [](char ch) { return ch == '.'; })) { + input.clear(); + } + else { + int n = (input.front() == '/')? 1 : 0; + auto slash = network_boost::find_nth(input, "/", n); + result.append(std::begin(input), std::begin(slash)); + input.erase(std::begin(input), std::begin(slash)); + } + } +*/ + return result; + } + + static std::string merge_paths(const uri& base, const uri& relative) + { + std::string result; + + if (base.path().empty()) + { + result = "/"; + } + else + { + const auto& base_path = base.path(); + auto last_slash = base_path.rfind('/'); + result.append(std::string(base_path.substr(0,last_slash+1))); + } + if (!relative.path().empty()) + { + result.append(relative.path().begin(), relative.path().end()); + } + return remove_dot_segments(jsoncons::string_view(result)); + } + + static void remove_last_segment(std::string& path) + { + auto last_slash = path.rfind('/'); + if (last_slash != std::string::npos) + { + path.erase(last_slash); + } + } + }; + +} // namespace jsoncons + +#endif diff --git a/include/jsoncons_ext/LICENSE b/include/jsoncons_ext/LICENSE new file mode 100644 index 0000000..ecf46ab --- /dev/null +++ b/include/jsoncons_ext/LICENSE @@ -0,0 +1,28 @@ +// Copyright Daniel Parker 2013 - 2020. +// Distributed under the Boost Software License, Version 1.0. +// (See accompanying file LICENSE or copy at +// http://www.boost.org/LICENSE_1_0.txt) + +Boost Software License - Version 1.0 - August 17th, 2003 + +Permission is hereby granted, free of charge, to any person or organization +obtaining a copy of the software and accompanying documentation covered by +this license (the "Software") to use, reproduce, display, distribute, +execute, and transmit the Software, and to prepare derivative works of the +Software, and to permit third-parties to whom the Software is furnished to +do so, all subject to the following: + +The copyright notices in the Software and this entire statement, including +the above license grant, this restriction and the following disclaimer, +must be included in all copies of the Software, in whole or in part, and +all derivative works of the Software, unless such copies or derivative +works are solely in the form of machine-executable object code generated by +a source language processor. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT +SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE +FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE, +ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER +DEALINGS IN THE SOFTWARE. diff --git a/include/jsoncons_ext/bson/bson.hpp b/include/jsoncons_ext/bson/bson.hpp new file mode 100644 index 0000000..ec3192d --- /dev/null +++ b/include/jsoncons_ext/bson/bson.hpp @@ -0,0 +1,23 @@ +// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_BSON_BSON_HPP +#define JSONCONS_BSON_BSON_HPP + +#include +#include +#include +#include // std::enable_if +#include // std::basic_istream +#include +#include +#include +#include +#include +#include +#include + +#endif diff --git a/include/jsoncons_ext/bson/bson_cursor.hpp b/include/jsoncons_ext/bson/bson_cursor.hpp new file mode 100644 index 0000000..8baee53 --- /dev/null +++ b/include/jsoncons_ext/bson/bson_cursor.hpp @@ -0,0 +1,320 @@ +// Copyright 2018 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_BSON_BSON_CURSOR_HPP +#define JSONCONS_BSON_BSON_CURSOR_HPP + +#include // std::allocator +#include +#include +#include +#include +#include +#include // std::basic_istream +#include +#include +#include +#include +#include +#include +#include + +namespace jsoncons { +namespace bson { + +template> +class basic_bson_cursor : public basic_staj_cursor, private virtual ser_context +{ + using super_type = basic_staj_cursor; +public: + using source_type = Source; + using char_type = char; + using allocator_type = Allocator; +private: + basic_bson_parser parser_; + basic_staj_visitor cursor_visitor_; + bool eof_; + + // Noncopyable and nonmoveable + basic_bson_cursor(const basic_bson_cursor&) = delete; + basic_bson_cursor& operator=(const basic_bson_cursor&) = delete; + +public: + using string_view_type = string_view; + + template + basic_bson_cursor(Sourceable&& source, + const bson_decode_options& options = bson_decode_options(), + const Allocator& alloc = Allocator()) + : parser_(std::forward(source), options, alloc), + cursor_visitor_(accept_all), + eof_(false) + { + if (!done()) + { + next(); + } + } + + // Constructors that set parse error codes + + template + basic_bson_cursor(Sourceable&& source, + std::error_code& ec) + : basic_bson_cursor(std::allocator_arg, Allocator(), + std::forward(source), + bson_decode_options(), + ec) + { + } + + template + basic_bson_cursor(Sourceable&& source, + const bson_decode_options& options, + std::error_code& ec) + : basic_bson_cursor(std::allocator_arg, Allocator(), + std::forward(source), + options, + ec) + { + } + + template + basic_bson_cursor(std::allocator_arg_t, const Allocator& alloc, + Sourceable&& source, + const bson_decode_options& options, + std::error_code& ec) + : parser_(std::forward(source), options, alloc), + cursor_visitor_(accept_all), + eof_(false) + { + if (!done()) + { + next(ec); + } + } + + void reset() + { + parser_.reset(); + cursor_visitor_.reset(); + eof_ = false; + if (!done()) + { + next(); + } + } + + template + void reset(Sourceable&& source) + { + parser_.reset(std::forward(source)); + cursor_visitor_.reset(); + eof_ = false; + if (!done()) + { + next(); + } + } + + void reset(std::error_code& ec) + { + parser_.reset(); + cursor_visitor_.reset(); + eof_ = false; + if (!done()) + { + next(ec); + } + } + + template + void reset(Sourceable&& source, std::error_code& ec) + { + parser_.reset(std::forward(source)); + cursor_visitor_.reset(); + eof_ = false; + if (!done()) + { + next(ec); + } + } + + bool done() const override + { + return parser_.done(); + } + + void array_expected(std::error_code& ec) override + { + if (cursor_visitor_.event().event_type() == staj_event_type::begin_object) + { + parser_.array_expected(cursor_visitor_, ec); + } + else + { + super_type::array_expected(ec); + } + } + + const staj_event& current() const override + { + return cursor_visitor_.event(); + } + + void read_to(basic_json_visitor& visitor) override + { + std::error_code ec; + read_to(visitor, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec,parser_.line(),parser_.column())); + } + } + + void read_to(basic_json_visitor& visitor, + std::error_code& ec) override + { + if (staj_to_saj_event(cursor_visitor_.event(), visitor, *this, ec)) + { + read_next(visitor, ec); + } + } + + void next() override + { + std::error_code ec; + next(ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec,parser_.line(),parser_.column())); + } + } + + void next(std::error_code& ec) override + { + read_next(ec); + } + + const ser_context& context() const override + { + return *this; + } + + bool eof() const + { + return eof_; + } + + std::size_t line() const override + { + return parser_.line(); + } + + std::size_t column() const override + { + return parser_.column(); + } + + friend + staj_filter_view operator|(basic_bson_cursor& cursor, + std::function pred) + { + return staj_filter_view(cursor, pred); + } + +#if !defined(JSONCONS_NO_DEPRECATED) + + template + JSONCONS_DEPRECATED_MSG("Instead, use pipe syntax for filter") + basic_bson_cursor(Sourceable&& source, + std::function filter, + std::error_code& ec) + : basic_bson_cursor(std::allocator_arg, Allocator(), + std::forward(source), filter, ec) + { + } + + template + JSONCONS_DEPRECATED_MSG("Instead, use pipe syntax for filter") + basic_bson_cursor(Sourceable&& source, + std::function filter, + const bson_decode_options& options = bson_decode_options(), + const Allocator& alloc = Allocator()) + : parser_(std::forward(source), options, alloc), + cursor_visitor_(filter), + eof_(false) + { + if (!done()) + { + next(); + } + } + + template + JSONCONS_DEPRECATED_MSG("Instead, use pipe syntax for filter") + basic_bson_cursor(std::allocator_arg_t, const Allocator& alloc, + Sourceable&& source, + std::function filter, + std::error_code& ec) + : parser_(std::forward(source),alloc), + cursor_visitor_(filter), + eof_(false) + { + if (!done()) + { + next(ec); + } + } + + JSONCONS_DEPRECATED_MSG("Instead, use read_to(basic_json_visitor&)") + void read(basic_json_visitor& visitor) + { + read_to(visitor); + } + + JSONCONS_DEPRECATED_MSG("Instead, use read_to(basic_json_visitor&, std::error_code&)") + void read(basic_json_visitor& visitor, + std::error_code& ec) + { + read_to(visitor, ec); + } +#endif +private: + static bool accept_all(const staj_event&, const ser_context&) + { + return true; + } + + void read_next(std::error_code& ec) + { + parser_.restart(); + while (!parser_.stopped()) + { + parser_.parse(cursor_visitor_, ec); + if (ec) return; + } + } + + void read_next(basic_json_visitor& visitor, std::error_code& ec) + { + parser_.restart(); + while (!parser_.stopped()) + { + parser_.parse(visitor, ec); + if (ec) return; + } + } +}; + +using bson_stream_cursor = basic_bson_cursor; +using bson_bytes_cursor = basic_bson_cursor; + +} // namespace bson +} // namespace jsoncons + +#endif + diff --git a/include/jsoncons_ext/bson/bson_decimal128.hpp b/include/jsoncons_ext/bson/bson_decimal128.hpp new file mode 100644 index 0000000..b487a04 --- /dev/null +++ b/include/jsoncons_ext/bson/bson_decimal128.hpp @@ -0,0 +1,865 @@ +#ifndef JSONCONS_BSON_BSON_DECIMAL128_HPP +#define JSONCONS_BSON_BSON_DECIMAL128_HPP + +/* + * Implements decimal128_to_chars and decimal128_from_chars + * + * Based on the libjson functions bson_decimal128_to_string + * and bson_decimal128_from_string_w_len, available at + * https://github.com/mongodb/mongo-c-driver/blob/master/src/libbson/src/bson/bson-decimal128.h + * and https://github.com/mongodb/mongo-c-driver/blob/master/src/libbson/src/bson/bson-decimal128.c + * +*/ + +/* + * Copyright 2015 MongoDB, Inc. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include +#include +#include +#include +#include +#include +#include + +namespace jsoncons { namespace bson { + + struct decimal128_to_chars_result + { + char* ptr; + std::errc ec; + }; + + struct decimal128_from_chars_result + { + const char* ptr; + std::errc ec; + }; + +/** + * BSON_DECIMAL128_STRING: + * + * The length of a decimal128 string (with null terminator). + * + * 1 for the sign + * 35 for digits and radix + * 2 for exponent indicator and sign + * 4 for exponent digits + */ +#define BSON_DECIMAL128_STRING 43 + + struct TP1 + { + uint64_t low; + uint64_t high; + + constexpr TP1() : low(0), high(0) {} + constexpr TP1(uint64_t hi, uint64_t lo) : low(lo), high(hi) {} + }; + struct TP2 + { + uint64_t high; + uint64_t low; + + constexpr TP2() : high(0), low(0) {} + constexpr TP2(uint64_t hi, uint64_t lo) : high(hi), low(lo) {} + }; + + typedef std::conditional< + jsoncons::endian::native == jsoncons::endian::little, + TP1, + TP2 + >::type decimal128_t; + + inline + bool operator==(const decimal128_t& lhs, const decimal128_t& rhs) + { + return lhs.high == rhs.high && lhs.low == rhs.low; + } + + inline + bool operator!=(const decimal128_t& lhs, const decimal128_t& rhs) + { + return !(lhs == rhs); + } + + struct decimal128_limits + { + // The length of a decimal128 string (without null terminator). + // + // 1 for the sign + // 35 for digits and radix + // 2 for exponent indicator and sign + // 4 for exponent digits + static constexpr int buf_size = 42; + static constexpr int exponent_max = 6111; + static constexpr int exponent_min = -6176; + static constexpr int exponent_bias = 6176; + static constexpr int max_digits = 34; + + static constexpr decimal128_t nan() {return decimal128_t(0x7c00000000000000ull, 0);} + static constexpr decimal128_t infinity() {return decimal128_t(0x7800000000000000ull, 0);} + static constexpr decimal128_t neg_infinity() {return decimal128_t(0x7800000000000000ull + 0x8000000000000000ull, 0);} + }; + + inline + bool is_nan(decimal128_t dec) { return dec == decimal128_limits::nan(); } + + inline + bool is_inf(decimal128_t dec) { return dec == decimal128_limits::infinity(); } + + inline + bool is_neg_inf(decimal128_t dec) { return dec == decimal128_limits::neg_infinity(); } + + /** + * bson_uint128_t: + * + * This struct represents a 128 bit integer. + */ + typedef struct { + uint32_t parts[4]; /* 32-bit words stored high to low. */ + } bson_uint128_t; + + typedef struct { + uint64_t high, low; + } bson_uint128_6464_t; + + namespace detail { + + /** + *------------------------------------------------------------------------------ + * + * bson_uint128_divide1B -- + * + * This function divides a #bson_uint128_t by 1000000000 (1 billion) and + * computes the quotient and remainder. + * + * The remainder will contain 9 decimal digits for conversion to string. + * + * @value The #bson_uint128_t operand. + * @quotient A pointer to store the #bson_uint128_t quotient. + * @rem A pointer to store the #uint64_t remainder. + * + * Returns: + * The quotient at @quotient and the remainder at @rem. + * + * Side effects: + * None. + * + *------------------------------------------------------------------------------ + */ + + inline + void bson_uint128_divide1B (bson_uint128_t value, /* IN */ + bson_uint128_t *quotient, /* OUT */ + uint32_t *rem) /* OUT */ + { + const uint32_t DIVISOR = 1000 * 1000 * 1000; + uint64_t _rem = 0; + int i = 0; + + if (!value.parts[0] && !value.parts[1] && !value.parts[2] && + !value.parts[3]) { + *quotient = value; + *rem = 0; + return; + } + + for (i = 0; i <= 3; i++) { + _rem <<= 32; /* Adjust remainder to match value of next dividend */ + _rem += value.parts[i]; /* Add the divided to _rem */ + value.parts[i] = (uint32_t) (_rem / DIVISOR); + _rem %= DIVISOR; /* Store the remainder */ + } + + *quotient = value; + *rem = (uint32_t) _rem; + } + + /** + *------------------------------------------------------------------------- + * + * mul64x64 -- + * + * This function multiplies two &uint64_t into a &bson_uint128_6464_t. + * + * Returns: + * The product of @left and @right. + * + * Side Effects: + * None. + * + *------------------------------------------------------------------------- + */ + + inline + void mul_64x64 (uint64_t left, /* IN */ + uint64_t right, /* IN */ + bson_uint128_6464_t *product) /* OUT */ + { + uint64_t left_high, left_low, right_high, right_low, product_high, + product_mid, product_mid2, product_low; + bson_uint128_6464_t rt = {0,0}; + + if (!left && !right) { + *product = rt; + return; + } + + left_high = left >> 32; + left_low = (uint32_t) left; + right_high = right >> 32; + right_low = (uint32_t) right; + + product_high = left_high * right_high; + product_mid = left_high * right_low; + product_mid2 = left_low * right_high; + product_low = left_low * right_low; + + product_high += product_mid >> 32; + product_mid = (uint32_t) product_mid + product_mid2 + (product_low >> 32); + + product_high = product_high + (product_mid >> 32); + product_low = (product_mid << 32) + (uint32_t) product_low; + + rt.high = product_high; + rt.low = product_low; + *product = rt; + } + + /** + *------------------------------------------------------------------------------ + * + * dec128_tolower -- + * + * This function converts the ASCII character @c to lowercase. It is locale + * insensitive (unlike the stdlib tolower). + * + * Returns: + * The lowercased character. + */ + + inline + char dec128_tolower (char c) + { + if (isupper (c)) { + c += 32; + } + + return c; + } + + /** + *------------------------------------------------------------------------------ + * + * dec128_istreq -- + * + * This function compares the null-terminated *ASCII* strings @a and @b + * for case-insensitive equality. + * + * Returns: + * true if the strings are equal, false otherwise. + */ + + inline + bool dec128_istreq (const char* a, const char* lasta, + const char* b, const char* lastb) + { + while (!(a == lasta && b == lastb)) + { + // strings are different lengths + if (a == lasta || b == lastb) + { + return false; + } + + if (dec128_tolower (*a) != dec128_tolower (*b)) { + return false; + } + + a++; + b++; + } + + return true; + } + + } // namespace detail + + + /** + *------------------------------------------------------------------------------ + * + * decimal128_to_chars -- + * + * This function converts a BID formatted decimal128 value to string, + * accepting a &decimal128_t as @dec. The string is stored at @str. + * + * @dec : The BID formatted decimal to convert. + * @str : The output decimal128 string. At least %BSON_DECIMAL128_STRING + *characters. + * + * Returns: + * None. + * + * Side effects: + * None. + * + *------------------------------------------------------------------------------ + */ + + inline + decimal128_to_chars_result decimal128_to_chars(char* first, char* last, const decimal128_t& dec) + { + const std::string bson_decimal128_inf = "Infinity"; + const std::string bson_decimal128_nan = "NaN"; + + const uint32_t combination_mask = 0x1f; /* Extract least significant 5 bits */ + const uint32_t exponent_mask = 0x3fff; /* Extract least significant 14 bits */ + const uint32_t combination_infinity = 30; /* Value of combination field for Inf */ + const uint32_t combination_nan = 31; /* Value of combination field for NaN */ + const uint32_t exponent_bias = 6176; /* decimal128 exponent bias */ + + char* str_out = first; /* output pointer in string */ + char significand_str[35]; /* decoded significand digits */ + + /* Note: bits in this routine are referred to starting at 0, */ + /* from the sign bit, towards the coefficient. */ + uint32_t high; /* bits 0 - 31 */ + uint32_t midh; /* bits 32 - 63 */ + uint32_t midl; /* bits 64 - 95 */ + uint32_t low; /* bits 96 - 127 */ + uint32_t combination; /* bits 1 - 5 */ + uint32_t biased_exponent; /* decoded biased exponent (14 bits) */ + uint32_t significand_digits = 0; /* the number of significand digits */ + uint32_t significand[36] = {0}; /* the base-10 digits in the significand */ + uint32_t *significand_read = significand; /* read pointer into significand */ + int32_t exponent; /* unbiased exponent */ + int32_t scientific_exponent; /* the exponent if scientific notation is + * used */ + bool is_zero = false; /* true if the number is zero */ + + uint8_t significand_msb; /* the most signifcant significand bits (50-46) */ + bson_uint128_t + significand128; /* temporary storage for significand decoding */ + + memset (significand_str, 0, sizeof (significand_str)); + + if ((int64_t) dec.high < 0) { /* negative */ + *(str_out++) = '-'; + } + + low = (uint32_t) dec.low, midl = (uint32_t) (dec.low >> 32), + midh = (uint32_t) dec.high, high = (uint32_t) (dec.high >> 32); + + /* Decode combination field and exponent */ + combination = (high >> 26) & combination_mask; + + if (JSONCONS_UNLIKELY ((combination >> 3) == 3)) { + /* Check for 'special' values */ + if (combination == combination_infinity) { /* Infinity */ + if (last-str_out >= static_cast(bson_decimal128_inf.size())) + { + std::memcpy(str_out, bson_decimal128_inf.data(), bson_decimal128_inf.size()); + str_out += bson_decimal128_inf.size(); + } + *str_out = 0; + //strcpy_s (str_out, last-str_out, bson_decimal128_inf.c_str()); + return decimal128_to_chars_result{str_out, std::errc()}; + } else if (combination == combination_nan) { /* NaN */ + /* first, not str_out, to erase the sign */ + str_out = first; + if (last-str_out >= static_cast(bson_decimal128_nan.size())) + { + std::memcpy(str_out, bson_decimal128_nan.data(), bson_decimal128_nan.size()); + str_out += bson_decimal128_nan.size(); + } + *str_out = 0; + //strcpy_s (first, last-first, bson_decimal128_nan.c_str()); + /* we don't care about the NaN payload. */ + return decimal128_to_chars_result{str_out, std::errc()}; + } else { + biased_exponent = (high >> 15) & exponent_mask; + significand_msb = 0x8 + ((high >> 14) & 0x1); + } + } else { + significand_msb = (high >> 14) & 0x7; + biased_exponent = (high >> 17) & exponent_mask; + } + + exponent = biased_exponent - exponent_bias; + /* Create string of significand digits */ + + /* Convert the 114-bit binary number represented by */ + /* (high, midh, midl, low) to at most 34 decimal */ + /* digits through modulo and division. */ + significand128.parts[0] = (high & 0x3fff) + ((significand_msb & 0xf) << 14); + significand128.parts[1] = midh; + significand128.parts[2] = midl; + significand128.parts[3] = low; + + if (significand128.parts[0] == 0 && significand128.parts[1] == 0 && + significand128.parts[2] == 0 && significand128.parts[3] == 0) { + is_zero = true; + } else if (significand128.parts[0] >= (1 << 17)) { + /* The significand is non-canonical or zero. + * In order to preserve compatibility with the densely packed decimal + * format, the maximum value for the significand of decimal128 is + * 1e34 - 1. If the value is greater than 1e34 - 1, the IEEE 754 + * standard dictates that the significand is interpreted as zero. + */ + is_zero = true; + } else { + for (int k = 3; k >= 0; k--) { + uint32_t least_digits = 0; + detail::bson_uint128_divide1B ( + significand128, &significand128, &least_digits); + + /* We now have the 9 least significant digits (in base 2). */ + /* Convert and output to string. */ + if (!least_digits) { + continue; + } + + for (int j = 8; j >= 0; j--) { + significand[k * 9 + j] = least_digits % 10; + least_digits /= 10; + } + } + } + + /* Output format options: */ + /* Scientific - [-]d.dddE(+/-)dd or [-]dE(+/-)dd */ + /* Regular - ddd.ddd */ + + if (is_zero) { + significand_digits = 1; + *significand_read = 0; + } else { + significand_digits = 36; + while (!(*significand_read)) { + significand_digits--; + significand_read++; + } + } + + scientific_exponent = significand_digits - 1 + exponent; + + /* The scientific exponent checks are dictated by the string conversion + * specification and are somewhat arbitrary cutoffs. + * + * We must check exponent > 0, because if this is the case, the number + * has trailing zeros. However, we *cannot* output these trailing zeros, + * because doing so would change the precision of the value, and would + * change stored data if the string converted number is round tripped. + */ + if (scientific_exponent < -6 || exponent > 0) { + /* Scientific format */ + *(str_out++) = char(*(significand_read++)) + '0'; + significand_digits--; + + if (significand_digits) { + *(str_out++) = '.'; + } + + for (std::size_t i = 0; i < significand_digits && (str_out - first) < 36; i++) { + *(str_out++) = char(*(significand_read++)) + '0'; + } + /* Exponent */ + *(str_out++) = 'E'; + + std::string s; + if (scientific_exponent >= 0) { + s.push_back('+'); + } + jsoncons::detail::from_integer(scientific_exponent, s); + if (str_out + s.size() < last) + { + std::memcpy(str_out, s.data(), s.size()); + } + else + { + return decimal128_to_chars_result{str_out, std::errc::value_too_large}; + } + str_out += s.size(); + } else { + /* Regular format with no decimal place */ + if (exponent >= 0) { + for (std::size_t i = 0; i < significand_digits && (str_out - first) < 36; i++) { + *(str_out++) = char(*(significand_read++)) + '0'; + } + } else { + int32_t radix_position = significand_digits + exponent; + + if (radix_position > 0) { /* non-zero digits before radix */ + for (int32_t i = 0; + i < radix_position && (str_out < last); + i++) { + *(str_out++) = char(*(significand_read++)) + '0'; + } + } else { /* leading zero before radix point */ + *(str_out++) = '0'; + } + + *(str_out++) = '.'; + while (radix_position++ < 0) { /* add leading zeros after radix */ + *(str_out++) = '0'; + } + + for (std::size_t i = 0; + (i < significand_digits - (std::max) (radix_position - 1, 0)) && + (str_out < last); + i++) { + *(str_out++) = char(*(significand_read++)) + '0'; + } + } + } + return decimal128_to_chars_result{str_out, std::errc()}; + } + + + + /** + *------------------------------------------------------------------------------ + * + * bson_decimal128_from_string_w_len -- + * + * This function converts @string in the format [+-]ddd[.]ddd[E][+-]dddd to + * decimal128. Out of range values are converted to +/-Infinity. Invalid + * strings are converted to NaN. @len is the length of the string, or -1 + * meaning the string is null-terminated. + * + * If more digits are provided than the available precision allows, + * round to the nearest expressable decimal128 with ties going to even will + * occur. + * + * Note: @string must be ASCII only! + * + * Returns: + * true on success, or false on failure. @dec will be NaN if @str was invalid + * The &decimal128_t converted from @string at @dec. + * + * Side effects: + * None. + * + *------------------------------------------------------------------------------ + */ + + inline + decimal128_from_chars_result decimal128_from_chars(const char* first, const char* last, decimal128_t& dec) + { + const string_view inf_str = "inf"; + const string_view infinity_str = "infinity"; + const string_view nan_str = "nan"; + + ptrdiff_t len = last - first; + + bson_uint128_6464_t significand = {0,0}; + + const char* str_read = first; /* Read pointer for consuming str. */ + + /* Parsing state tracking */ + bool is_negative = false; + bool saw_radix = false; + bool includes_sign = false; /* True if the input first contains a sign. */ + bool found_nonzero = false; + + size_t significant_digits = 0; /* Total number of significant digits + * (no leading or trailing zero) */ + size_t ndigits_read = 0; /* Total number of significand digits read */ + size_t ndigits = 0; /* Total number of digits (no leading zeros) */ + size_t radix_position = 0; /* The number of the digits after radix */ + size_t first_nonzero = 0; /* The index of the first non-zero in *str* */ + + uint16_t digits[decimal128_limits::max_digits] = {0}; + uint16_t ndigits_stored = 0; /* The number of digits in digits */ + uint16_t *digits_insert = digits; /* Insertion pointer for digits */ + size_t first_digit = 0; /* The index of the first non-zero digit */ + size_t last_digit = 0; /* The index of the last digit */ + + int32_t exponent = 0; + uint64_t significand_high = 0; /* The high 17 digits of the significand */ + uint64_t significand_low = 0; /* The low 17 digits of the significand */ + uint16_t biased_exponent = 0; /* The biased exponent */ + + dec.high = 0; + dec.low = 0; + + if (*str_read == '+' || *str_read == '-') { + is_negative = *(str_read++) == '-'; + includes_sign = true; + } + + /* Check for Infinity or NaN */ + if (!isdigit (*str_read) && *str_read != '.') { + if (detail::dec128_istreq (str_read, last, inf_str.data(), inf_str.data()+inf_str.length()) || + detail::dec128_istreq (str_read, last, infinity_str.data(), infinity_str.data()+infinity_str.length())) + { + dec = is_negative ? decimal128_limits::neg_infinity() : decimal128_limits::infinity(); + return decimal128_from_chars_result{str_read,std::errc()}; + } else if (detail::dec128_istreq (str_read, last, nan_str.data(), nan_str.data()+nan_str.length())) { + dec = decimal128_limits::nan(); + return decimal128_from_chars_result{str_read,std::errc()}; + } + + dec = decimal128_limits::nan(); + return decimal128_from_chars_result{str_read,std::errc::invalid_argument}; + } + + /* Read digits */ + while (((isdigit (*str_read) || *str_read == '.')) && + (len == -1 || str_read < first + len)) { + if (*str_read == '.') { + if (saw_radix) { + dec = decimal128_limits::nan(); + return decimal128_from_chars_result{str_read,std::errc::invalid_argument}; + } + + saw_radix = true; + str_read++; + continue; + } + + if (ndigits_stored < 34) { + if (*str_read != '0' || found_nonzero) { + if (!found_nonzero) { + first_nonzero = ndigits_read; + } + + found_nonzero = true; + *(digits_insert++) = *(str_read) - '0'; /* Only store 34 digits */ + ndigits_stored++; + } + } + + if (found_nonzero) { + ndigits++; + } + + if (saw_radix) { + radix_position++; + } + + ndigits_read++; + str_read++; + } + + if (saw_radix && !ndigits_read) { + dec = decimal128_limits::nan(); + return decimal128_from_chars_result{str_read,std::errc::invalid_argument}; + } + + /* Read exponent if exists */ + if (*str_read == 'e' || *str_read == 'E') { + ++str_read; + if (*str_read == '+') { + ++str_read; + } + auto result = jsoncons::detail::to_integer(str_read, last - str_read, exponent); + if (result.ec != jsoncons::detail::to_integer_errc()) + { + dec = decimal128_limits::nan(); + return decimal128_from_chars_result{str_read,std::errc::invalid_argument}; + } + str_read = result.ptr; + } + + if ((len == -1 || str_read < first + len) && *str_read) { + dec = decimal128_limits::nan(); + return decimal128_from_chars_result{str_read,std::errc::invalid_argument}; + } + + /* Done reading input. */ + /* Find first non-zero digit in digits */ + first_digit = 0; + + if (!ndigits_stored) { /* value is zero */ + first_digit = 0; + last_digit = 0; + digits[0] = 0; + ndigits = 1; + ndigits_stored = 1; + significant_digits = 0; + } else { + last_digit = ndigits_stored - 1; + significant_digits = ndigits; + /* Mark trailing zeros as non-significant */ + while (first[first_nonzero + significant_digits - 1 + includes_sign + + saw_radix] == '0') { + significant_digits--; + } + } + + + /* Normalization of exponent */ + /* Correct exponent based on radix position, and shift significand as needed + */ + /* to represent user input */ + + /* Overflow prevention */ + if (exponent <= static_cast(radix_position) && static_cast(radix_position) - exponent > (1 << 14)) { + exponent = decimal128_limits::exponent_min; + } else { + exponent -= static_cast(radix_position); + } + + /* Attempt to normalize the exponent */ + while (exponent > decimal128_limits::exponent_max) { + /* Shift exponent to significand and decrease */ + last_digit++; + + if (last_digit - first_digit > decimal128_limits::max_digits) { + /* The exponent is too great to shift into the significand. */ + if (significant_digits == 0) { + /* Value is zero, we are allowed to clamp the exponent. */ + exponent = decimal128_limits::exponent_max; + break; + } + + /* Overflow is not permitted, error. */ + dec = decimal128_limits::nan(); + return decimal128_from_chars_result{str_read,std::errc::invalid_argument}; + } + + exponent--; + } + + while (exponent < decimal128_limits::exponent_min || ndigits_stored < ndigits) { + /* Shift last digit */ + if (last_digit == 0) { + /* underflow is not allowed, but zero clamping is */ + if (significant_digits == 0) { + exponent = decimal128_limits::exponent_min; + break; + } + + dec = decimal128_limits::nan(); + return decimal128_from_chars_result{str_read,std::errc::invalid_argument}; + } + + if (ndigits_stored < ndigits) { + if (first[ndigits - 1 + includes_sign + saw_radix] - '0' != 0 && + significant_digits != 0) { + dec = decimal128_limits::nan(); + return decimal128_from_chars_result{str_read,std::errc::invalid_argument}; + } + + ndigits--; /* adjust to match digits not stored */ + } else { + if (digits[last_digit] != 0) { + /* Inexact rounding is not allowed. */ + dec = decimal128_limits::nan(); + return decimal128_from_chars_result{str_read,std::errc::invalid_argument}; + } + + + last_digit--; /* adjust to round */ + } + + if (exponent < decimal128_limits::exponent_max) { + exponent++; + } else { + dec = decimal128_limits::nan(); + return decimal128_from_chars_result{str_read,std::errc::invalid_argument}; + } + } + + /* Round */ + /* We've normalized the exponent, but might still need to round. */ + if (last_digit - first_digit + 1 < significant_digits) { + uint8_t round_digit; + + /* There are non-zero digits after last_digit that need rounding. */ + /* We round to nearest, ties to even */ + round_digit = + first[first_nonzero + last_digit + includes_sign + saw_radix + 1] - + '0'; + + if (round_digit != 0) { + /* Inexact (non-zero) rounding is not allowed */ + dec = decimal128_limits::nan(); + return decimal128_from_chars_result{str_read,std::errc::invalid_argument}; + } + } + + /* Encode significand */ + significand_high = 0, /* The high 17 digits of the significand */ + significand_low = 0; /* The low 17 digits of the significand */ + + if (significant_digits == 0) { /* read a zero */ + significand_high = 0; + significand_low = 0; + } else if (last_digit - first_digit < 17) { + size_t d_idx = first_digit; + significand_low = digits[d_idx++]; + + for (; d_idx <= last_digit; d_idx++) { + significand_low *= 10; + significand_low += digits[d_idx]; + significand_high = 0; + } + } else { + size_t d_idx = first_digit; + significand_high = digits[d_idx++]; + + for (; d_idx <= last_digit - 17; d_idx++) { + significand_high *= 10; + significand_high += digits[d_idx]; + } + + significand_low = digits[d_idx++]; + + for (; d_idx <= last_digit; d_idx++) { + significand_low *= 10; + significand_low += digits[d_idx]; + } + } + + detail::mul_64x64 (significand_high, 100000000000000000ull, &significand); + significand.low += significand_low; + + if (significand.low < significand_low) { + significand.high += 1; + } + + + biased_exponent = static_cast(exponent + static_cast(decimal128_limits::exponent_bias)); + + /* Encode combination, exponent, and significand. */ + if ((significand.high >> 49) & 1) { + /* Encode '11' into bits 1 to 3 */ + dec.high |= (0x3ull << 61); + dec.high |= (biased_exponent & 0x3fffull) << 47; + dec.high |= significand.high & 0x7fffffffffffull; + } else { + dec.high |= (biased_exponent & 0x3fffull) << 49; + dec.high |= significand.high & 0x1ffffffffffffull; + } + + dec.low = significand.low; + + /* Encode sign */ + if (is_negative) { + dec.high |= 0x8000000000000000ull; + } + + return decimal128_from_chars_result{str_read,std::errc()}; + } + +} // namespace bson +} // namespace jsoncons + +#endif diff --git a/include/jsoncons_ext/bson/bson_decimal128.hpp.bak b/include/jsoncons_ext/bson/bson_decimal128.hpp.bak new file mode 100644 index 0000000..8e27ee1 --- /dev/null +++ b/include/jsoncons_ext/bson/bson_decimal128.hpp.bak @@ -0,0 +1,816 @@ +#ifndef JSONCONS_BSON_BSON_DECIMAL128_HPP +#define JSONCONS_BSON_BSON_DECIMAL128_HPP + +/* + * Copyright 2015 MongoDB, Inc. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include +#include +#include +#include +#include + +namespace jsoncons { namespace bson { + + struct decimal128_to_chars_result + { + char* ptr; + std::errc ec; + }; + + struct decimal128_from_chars_result + { + const char* ptr; + std::errc ec; + }; + +/** + * BSON_DECIMAL128_STRING: + * + * The length of a decimal128 string (with null terminator). + * + * 1 for the sign + * 35 for digits and radix + * 2 for exponent indicator and sign + * 4 for exponent digits + */ +#define BSON_DECIMAL128_STRING 43 +#define BSON_DECIMAL128_INF "Infinity" +#define BSON_DECIMAL128_NAN "NaN" + + struct TP1 + { + uint64_t low; + uint64_t high; + + constexpr TP1() : low(0), high(0) {} + constexpr TP1(uint64_t hi, uint64_t lo) : low(lo), high(hi) {} + }; + struct TP2 + { + uint64_t high; + uint64_t low; + + constexpr TP2() : high(0), low(0) {} + constexpr TP2(uint64_t hi, uint64_t lo) : high(hi), low(lo) {} + }; + + typedef typename std::conditional< + jsoncons::endian::native == jsoncons::endian::little, + TP1, + TP2 + >::type decimal128_t; + + inline + bool operator==(const decimal128_t& lhs, const decimal128_t& rhs) + { + return lhs.high == rhs.high && lhs.low == rhs.low; + } + + inline + bool operator!=(const decimal128_t& lhs, const decimal128_t& rhs) + { + return !(lhs == rhs); + } + + struct decimal128_limits + { + // The length of a decimal128 string (without null terminator). + // + // 1 for the sign + // 35 for digits and radix + // 2 for exponent indicator and sign + // 4 for exponent digits + static constexpr int recommended_buffer_size = 42; + static constexpr decimal128_t nan = decimal128_t(0x7c00000000000000ull, 0); + static constexpr decimal128_t infinity = decimal128_t(0x7800000000000000ull, 0); + static constexpr decimal128_t neg_infinity = decimal128_t(0x7800000000000000ull + 0x8000000000000000ull, 0); + static constexpr int exponent_max = 6111; + static constexpr int exponent_min = -6176; + static constexpr int exponent_bias = 6176; + static constexpr int max_digits = 34; + }; + + /** + * bson_uint128_t: + * + * This struct represents a 128 bit integer. + */ + typedef struct { + uint32_t parts[4]; /* 32-bit words stored high to low. */ + } bson_uint128_t; + + typedef struct { + uint64_t high, low; + } bson_uint128_6464_t; + + namespace detail { + + /** + *------------------------------------------------------------------------------ + * + * bson_uint128_divide1B -- + * + * This function divides a #bson_uint128_t by 1000000000 (1 billion) and + * computes the quotient and remainder. + * + * The remainder will contain 9 decimal digits for conversion to string. + * + * @value The #bson_uint128_t operand. + * @quotient A pointer to store the #bson_uint128_t quotient. + * @rem A pointer to store the #uint64_t remainder. + * + * Returns: + * The quotient at @quotient and the remainder at @rem. + * + * Side effects: + * None. + * + *------------------------------------------------------------------------------ + */ + + inline + void bson_uint128_divide1B (bson_uint128_t value, /* IN */ + bson_uint128_t *quotient, /* OUT */ + uint32_t *rem) /* OUT */ + { + const uint32_t DIVISOR = 1000 * 1000 * 1000; + uint64_t _rem = 0; + int i = 0; + + if (!value.parts[0] && !value.parts[1] && !value.parts[2] && + !value.parts[3]) { + *quotient = value; + *rem = 0; + return; + } + + for (i = 0; i <= 3; i++) { + _rem <<= 32; /* Adjust remainder to match value of next dividend */ + _rem += value.parts[i]; /* Add the divided to _rem */ + value.parts[i] = (uint32_t) (_rem / DIVISOR); + _rem %= DIVISOR; /* Store the remainder */ + } + + *quotient = value; + *rem = (uint32_t) _rem; + } + + /** + *------------------------------------------------------------------------- + * + * mul64x64 -- + * + * This function multiplies two &uint64_t into a &bson_uint128_6464_t. + * + * Returns: + * The product of @left and @right. + * + * Side Effects: + * None. + * + *------------------------------------------------------------------------- + */ + + inline + void mul_64x64 (uint64_t left, /* IN */ + uint64_t right, /* IN */ + bson_uint128_6464_t *product) /* OUT */ + { + uint64_t left_high, left_low, right_high, right_low, product_high, + product_mid, product_mid2, product_low; + bson_uint128_6464_t rt = {0}; + + if (!left && !right) { + *product = rt; + return; + } + + left_high = left >> 32; + left_low = (uint32_t) left; + right_high = right >> 32; + right_low = (uint32_t) right; + + product_high = left_high * right_high; + product_mid = left_high * right_low; + product_mid2 = left_low * right_high; + product_low = left_low * right_low; + + product_high += product_mid >> 32; + product_mid = (uint32_t) product_mid + product_mid2 + (product_low >> 32); + + product_high = product_high + (product_mid >> 32); + product_low = (product_mid << 32) + (uint32_t) product_low; + + rt.high = product_high; + rt.low = product_low; + *product = rt; + } + + /** + *------------------------------------------------------------------------------ + * + * dec128_tolower -- + * + * This function converts the ASCII character @c to lowercase. It is locale + * insensitive (unlike the stdlib tolower). + * + * Returns: + * The lowercased character. + */ + + inline + char dec128_tolower (char c) + { + if (isupper (c)) { + c += 32; + } + + return c; + } + + /** + *------------------------------------------------------------------------------ + * + * dec128_istreq -- + * + * This function compares the null-terminated *ASCII* strings @a and @b + * for case-insensitive equality. + * + * Returns: + * true if the strings are equal, false otherwise. + */ + + inline + bool dec128_istreq (const char* a, /* IN */ + const char* b /* IN */) + { + while (*a != '\0' || *b != '\0') { + /* strings are different lengths. */ + if (*a == '\0' || *b == '\0') { + return false; + } + + if (dec128_tolower (*a) != dec128_tolower (*b)) { + return false; + } + + a++; + b++; + } + + return true; + } + + } // namespace detail + + + /** + *------------------------------------------------------------------------------ + * + * decimal128_to_chars -- + * + * This function converts a BID formatted decimal128 value to string, + * accepting a &decimal128_t as @dec. The string is stored at @str. + * + * @dec : The BID formatted decimal to convert. + * @str : The output decimal128 string. At least %BSON_DECIMAL128_STRING + *characters. + * + * Returns: + * None. + * + * Side effects: + * None. + * + *------------------------------------------------------------------------------ + */ + + inline + void decimal128_to_chars(char* first, char* last, const decimal128_t& dec) + { + uint32_t COMBINATION_MASK = 0x1f; /* Extract least significant 5 bits */ + uint32_t EXPONENT_MASK = 0x3fff; /* Extract least significant 14 bits */ + uint32_t COMBINATION_INFINITY = 30; /* Value of combination field for Inf */ + uint32_t COMBINATION_NAN = 31; /* Value of combination field for NaN */ + uint32_t EXPONENT_BIAS = 6176; /* decimal128 exponent bias */ + + char* str_out = first; /* output pointer in string */ + char significand_str[35]; /* decoded significand digits */ + + + /* Note: bits in this routine are referred to starting at 0, */ + /* from the sign bit, towards the coefficient. */ + uint32_t high; /* bits 0 - 31 */ + uint32_t midh; /* bits 32 - 63 */ + uint32_t midl; /* bits 64 - 95 */ + uint32_t low; /* bits 96 - 127 */ + uint32_t combination; /* bits 1 - 5 */ + uint32_t biased_exponent; /* decoded biased exponent (14 bits) */ + uint32_t significand_digits = 0; /* the number of significand digits */ + uint32_t significand[36] = {0}; /* the base-10 digits in the significand */ + uint32_t *significand_read = significand; /* read pointer into significand */ + int32_t exponent; /* unbiased exponent */ + int32_t scientific_exponent; /* the exponent if scientific notation is + * used */ + bool is_zero = false; /* true if the number is zero */ + + uint8_t significand_msb; /* the most signifcant significand bits (50-46) */ + bson_uint128_t + significand128; /* temporary storage for significand decoding */ + size_t i; /* indexing variables */ + int j, k; + + memset (significand_str, 0, sizeof (significand_str)); + + if ((int64_t) dec.high < 0) { /* negative */ + *(str_out++) = '-'; + } + + low = (uint32_t) dec.low, midl = (uint32_t) (dec.low >> 32), + midh = (uint32_t) dec.high, high = (uint32_t) (dec.high >> 32); + + /* Decode combination field and exponent */ + combination = (high >> 26) & COMBINATION_MASK; + + if (JSONCONS_UNLIKELY ((combination >> 3) == 3)) { + /* Check for 'special' values */ + if (combination == COMBINATION_INFINITY) { /* Infinity */ + strcpy (str_out, BSON_DECIMAL128_INF); + return; + } else if (combination == COMBINATION_NAN) { /* NaN */ + /* first, not str_out, to erase the sign */ + strcpy (first, BSON_DECIMAL128_NAN); + /* we don't care about the NaN payload. */ + return; + } else { + biased_exponent = (high >> 15) & EXPONENT_MASK; + significand_msb = 0x8 + ((high >> 14) & 0x1); + } + } else { + significand_msb = (high >> 14) & 0x7; + biased_exponent = (high >> 17) & EXPONENT_MASK; + } + + exponent = biased_exponent - EXPONENT_BIAS; + /* Create string of significand digits */ + + /* Convert the 114-bit binary number represented by */ + /* (high, midh, midl, low) to at most 34 decimal */ + /* digits through modulo and division. */ + significand128.parts[0] = (high & 0x3fff) + ((significand_msb & 0xf) << 14); + significand128.parts[1] = midh; + significand128.parts[2] = midl; + significand128.parts[3] = low; + + if (significand128.parts[0] == 0 && significand128.parts[1] == 0 && + significand128.parts[2] == 0 && significand128.parts[3] == 0) { + is_zero = true; + } else if (significand128.parts[0] >= (1 << 17)) { + /* The significand is non-canonical or zero. + * In order to preserve compatibility with the densely packed decimal + * format, the maximum value for the significand of decimal128 is + * 1e34 - 1. If the value is greater than 1e34 - 1, the IEEE 754 + * standard dictates that the significand is interpreted as zero. + */ + is_zero = true; + } else { + for (k = 3; k >= 0; k--) { + uint32_t least_digits = 0; + detail::bson_uint128_divide1B ( + significand128, &significand128, &least_digits); + + /* We now have the 9 least significant digits (in base 2). */ + /* Convert and output to string. */ + if (!least_digits) { + continue; + } + + for (j = 8; j >= 0; j--) { + significand[k * 9 + j] = least_digits % 10; + least_digits /= 10; + } + } + } + + /* Output format options: */ + /* Scientific - [-]d.dddE(+/-)dd or [-]dE(+/-)dd */ + /* Regular - ddd.ddd */ + + if (is_zero) { + significand_digits = 1; + *significand_read = 0; + } else { + significand_digits = 36; + while (!(*significand_read)) { + significand_digits--; + significand_read++; + } + } + + scientific_exponent = significand_digits - 1 + exponent; + + /* The scientific exponent checks are dictated by the string conversion + * specification and are somewhat arbitrary cutoffs. + * + * We must check exponent > 0, because if this is the case, the number + * has trailing zeros. However, we *cannot* output these trailing zeros, + * because doing so would change the precision of the value, and would + * change stored data if the string converted number is round tripped. + */ + if (scientific_exponent < -6 || exponent > 0) { + /* Scientific format */ + *(str_out++) = *(significand_read++) + '0'; + significand_digits--; + + if (significand_digits) { + *(str_out++) = '.'; + } + + for (i = 0; i < significand_digits && (str_out - first) < 36; i++) { + *(str_out++) = *(significand_read++) + '0'; + } + /* Exponent */ + *(str_out++) = 'E'; + snprintf (str_out, 6, "%+d", scientific_exponent); + } else { + /* Regular format with no decimal place */ + if (exponent >= 0) { + for (i = 0; i < significand_digits && (str_out - first) < 36; i++) { + *(str_out++) = *(significand_read++) + '0'; + } + *str_out = '\0'; + } else { + int32_t radix_position = significand_digits + exponent; + + if (radix_position > 0) { /* non-zero digits before radix */ + for (i = 0; + i < radix_position && (str_out < last); + i++) { + *(str_out++) = *(significand_read++) + '0'; + } + } else { /* leading zero before radix point */ + *(str_out++) = '0'; + } + + *(str_out++) = '.'; + while (radix_position++ < 0) { /* add leading zeros after radix */ + *(str_out++) = '0'; + } + + for (i = 0; + (i < significand_digits - (std::max) (radix_position - 1, 0)) && + (str_out < last); + i++) { + *(str_out++) = *(significand_read++) + '0'; + } + *str_out = '\0'; + } + } + } + + + + /** + *------------------------------------------------------------------------------ + * + * bson_decimal128_from_string_w_len -- + * + * This function converts @string in the format [+-]ddd[.]ddd[E][+-]dddd to + * decimal128. Out of range values are converted to +/-Infinity. Invalid + * strings are converted to NaN. @len is the length of the string, or -1 + * meaning the string is null-terminated. + * + * If more digits are provided than the available precision allows, + * round to the nearest expressable decimal128 with ties going to even will + * occur. + * + * Note: @string must be ASCII only! + * + * Returns: + * true on success, or false on failure. @dec will be NaN if @str was invalid + * The &decimal128_t converted from @string at @dec. + * + * Side effects: + * None. + * + *------------------------------------------------------------------------------ + */ + + inline + bool decimal128_from_chars(const char* first, const char* last, decimal128_t& dec) + { + int len = last - first; + + bson_uint128_6464_t significand = {0}; + + const char* str_read = first; /* Read pointer for consuming str. */ + + /* Parsing state tracking */ + bool is_negative = false; + bool saw_radix = false; + bool includes_sign = false; /* True if the input first contains a sign. */ + bool found_nonzero = false; + + size_t significant_digits = 0; /* Total number of significant digits + * (no leading or trailing zero) */ + size_t ndigits_read = 0; /* Total number of significand digits read */ + size_t ndigits = 0; /* Total number of digits (no leading zeros) */ + size_t radix_position = 0; /* The number of the digits after radix */ + size_t first_nonzero = 0; /* The index of the first non-zero in *str* */ + + uint16_t digits[decimal128_limits::max_digits] = {0}; + uint16_t ndigits_stored = 0; /* The number of digits in digits */ + uint16_t *digits_insert = digits; /* Insertion pointer for digits */ + size_t first_digit = 0; /* The index of the first non-zero digit */ + size_t last_digit = 0; /* The index of the last digit */ + + int32_t exponent = 0; + uint64_t significand_high = 0; /* The high 17 digits of the significand */ + uint64_t significand_low = 0; /* The low 17 digits of the significand */ + uint16_t biased_exponent = 0; /* The biased exponent */ + + dec.high = 0; + dec.low = 0; + + if (*str_read == '+' || *str_read == '-') { + is_negative = *(str_read++) == '-'; + includes_sign = true; + } + + /* Check for Infinity or NaN */ + if (!isdigit (*str_read) && *str_read != '.') { + if (detail::dec128_istreq (str_read, "inf") || + detail::dec128_istreq (str_read, "infinity")) { + dec = is_negative ? decimal128_limits::neg_infinity : decimal128_limits::infinity; + return true; + } else if (detail::dec128_istreq (str_read, "nan")) { + dec = decimal128_limits::nan; + return true; + } + + dec = decimal128_limits::nan; + return false; + } + + /* Read digits */ + while (((isdigit (*str_read) || *str_read == '.')) && + (len == -1 || str_read < first + len)) { + if (*str_read == '.') { + if (saw_radix) { + dec = decimal128_limits::nan; + return false; + } + + saw_radix = true; + str_read++; + continue; + } + + if (ndigits_stored < 34) { + if (*str_read != '0' || found_nonzero) { + if (!found_nonzero) { + first_nonzero = ndigits_read; + } + + found_nonzero = true; + *(digits_insert++) = *(str_read) - '0'; /* Only store 34 digits */ + ndigits_stored++; + } + } + + if (found_nonzero) { + ndigits++; + } + + if (saw_radix) { + radix_position++; + } + + ndigits_read++; + str_read++; + } + + if (saw_radix && !ndigits_read) { + dec = decimal128_limits::nan; + return false; + } + + /* Read exponent if exists */ + if (*str_read == 'e' || *str_read == 'E') { + int nread = 0; + #ifdef _MSC_VER + #define SSCANF sscanf_s + #else + #define SSCANF sscanf + #endif + int read_exponent = SSCANF (++str_read, "%d%n", &exponent, &nread); + str_read += nread; + + if (!read_exponent || nread == 0) { + dec = decimal128_limits::nan; + return false; + } + + #undef SSCANF + } + + if ((len == -1 || str_read < first + len) && *str_read) { + dec = decimal128_limits::nan; + return false; + } + + /* Done reading input. */ + /* Find first non-zero digit in digits */ + first_digit = 0; + + if (!ndigits_stored) { /* value is zero */ + first_digit = 0; + last_digit = 0; + digits[0] = 0; + ndigits = 1; + ndigits_stored = 1; + significant_digits = 0; + } else { + last_digit = ndigits_stored - 1; + significant_digits = ndigits; + /* Mark trailing zeros as non-significant */ + while (first[first_nonzero + significant_digits - 1 + includes_sign + + saw_radix] == '0') { + significant_digits--; + } + } + + + /* Normalization of exponent */ + /* Correct exponent based on radix position, and shift significand as needed + */ + /* to represent user input */ + + /* Overflow prevention */ + if (exponent <= radix_position && radix_position - exponent > (1 << 14)) { + exponent = decimal128_limits::exponent_min; + } else { + exponent -= radix_position; + } + + /* Attempt to normalize the exponent */ + while (exponent > decimal128_limits::exponent_max) { + /* Shift exponent to significand and decrease */ + last_digit++; + + if (last_digit - first_digit > decimal128_limits::max_digits) { + /* The exponent is too great to shift into the significand. */ + if (significant_digits == 0) { + /* Value is zero, we are allowed to clamp the exponent. */ + exponent = decimal128_limits::exponent_max; + break; + } + + /* Overflow is not permitted, error. */ + dec = decimal128_limits::nan; + return false; + } + + exponent--; + } + + while (exponent < decimal128_limits::exponent_min || ndigits_stored < ndigits) { + /* Shift last digit */ + if (last_digit == 0) { + /* underflow is not allowed, but zero clamping is */ + if (significant_digits == 0) { + exponent = decimal128_limits::exponent_min; + break; + } + + dec = decimal128_limits::nan; + return false; + } + + if (ndigits_stored < ndigits) { + if (first[ndigits - 1 + includes_sign + saw_radix] - '0' != 0 && + significant_digits != 0) { + dec = decimal128_limits::nan; + return false; + } + + ndigits--; /* adjust to match digits not stored */ + } else { + if (digits[last_digit] != 0) { + /* Inexact rounding is not allowed. */ + dec = decimal128_limits::nan; + return false; + } + + + last_digit--; /* adjust to round */ + } + + if (exponent < decimal128_limits::exponent_max) { + exponent++; + } else { + dec = decimal128_limits::nan; + return false; + } + } + + /* Round */ + /* We've normalized the exponent, but might still need to round. */ + if (last_digit - first_digit + 1 < significant_digits) { + uint8_t round_digit; + + /* There are non-zero digits after last_digit that need rounding. */ + /* We round to nearest, ties to even */ + round_digit = + first[first_nonzero + last_digit + includes_sign + saw_radix + 1] - + '0'; + + if (round_digit != 0) { + /* Inexact (non-zero) rounding is not allowed */ + dec = decimal128_limits::nan; + return false; + } + } + + /* Encode significand */ + significand_high = 0, /* The high 17 digits of the significand */ + significand_low = 0; /* The low 17 digits of the significand */ + + if (significant_digits == 0) { /* read a zero */ + significand_high = 0; + significand_low = 0; + } else if (last_digit - first_digit < 17) { + size_t d_idx = first_digit; + significand_low = digits[d_idx++]; + + for (; d_idx <= last_digit; d_idx++) { + significand_low *= 10; + significand_low += digits[d_idx]; + significand_high = 0; + } + } else { + size_t d_idx = first_digit; + significand_high = digits[d_idx++]; + + for (; d_idx <= last_digit - 17; d_idx++) { + significand_high *= 10; + significand_high += digits[d_idx]; + } + + significand_low = digits[d_idx++]; + + for (; d_idx <= last_digit; d_idx++) { + significand_low *= 10; + significand_low += digits[d_idx]; + } + } + + detail::mul_64x64 (significand_high, 100000000000000000ull, &significand); + significand.low += significand_low; + + if (significand.low < significand_low) { + significand.high += 1; + } + + + biased_exponent = (exponent + (int16_t) decimal128_limits::exponent_bias); + + /* Encode combination, exponent, and significand. */ + if ((significand.high >> 49) & 1) { + /* Encode '11' into bits 1 to 3 */ + dec.high |= (0x3ull << 61); + dec.high |= (biased_exponent & 0x3fffull) << 47; + dec.high |= significand.high & 0x7fffffffffffull; + } else { + dec.high |= (biased_exponent & 0x3fffull) << 49; + dec.high |= significand.high & 0x1ffffffffffffull; + } + + dec.low = significand.low; + + /* Encode sign */ + if (is_negative) { + dec.high |= 0x8000000000000000ull; + } + + return true; + } + +} // namespace bson +} // namespace jsoncons + +#endif diff --git a/include/jsoncons_ext/bson/bson_encoder.hpp b/include/jsoncons_ext/bson/bson_encoder.hpp new file mode 100644 index 0000000..4569f06 --- /dev/null +++ b/include/jsoncons_ext/bson/bson_encoder.hpp @@ -0,0 +1,585 @@ +// Copyright 2018 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_BSON_BSON_ENCODER_HPP +#define JSONCONS_BSON_BSON_ENCODER_HPP + +#include +#include +#include // std::numeric_limits +#include +#include // std::move +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +namespace jsoncons { namespace bson { + +template> +class basic_bson_encoder final : public basic_json_visitor +{ + enum class decimal_parse_state { start, integer, exp1, exp2, fraction1 }; + static constexpr int64_t nanos_in_milli = 1000000; + static constexpr int64_t nanos_in_second = 1000000000; + static constexpr int64_t millis_in_second = 1000; +public: + using allocator_type = Allocator; + using char_type = char; + using typename basic_json_visitor::string_view_type; + using sink_type = Sink; + +private: + struct stack_item + { + jsoncons::bson::bson_container_type type_; + std::size_t offset_; + std::size_t name_offset_; + std::size_t index_; + + stack_item(jsoncons::bson::bson_container_type type, std::size_t offset) noexcept + : type_(type), offset_(offset), name_offset_(0), index_(0) + { + } + + std::size_t offset() const + { + return offset_; + } + + std::size_t member_offset() const + { + return name_offset_; + } + + void member_offset(std::size_t offset) + { + name_offset_ = offset; + } + + std::size_t next_index() + { + return index_++; + } + + bool is_object() const + { + return type_ == jsoncons::bson::bson_container_type::document; + } + + + }; + + sink_type sink_; + const bson_encode_options options_; + allocator_type alloc_; + + std::vector stack_; + std::vector buffer_; + int nesting_depth_; + + // Noncopyable and nonmoveable + basic_bson_encoder(const basic_bson_encoder&) = delete; + basic_bson_encoder& operator=(const basic_bson_encoder&) = delete; +public: + explicit basic_bson_encoder(Sink&& sink, + const Allocator& alloc = Allocator()) + : basic_bson_encoder(std::forward(sink), + bson_encode_options(), + alloc) + { + } + + explicit basic_bson_encoder(Sink&& sink, + const bson_encode_options& options, + const Allocator& alloc = Allocator()) + : sink_(std::forward(sink)), + options_(options), + alloc_(alloc), + nesting_depth_(0) + { + } + + ~basic_bson_encoder() noexcept + { + sink_.flush(); + } + + void reset() + { + stack_.clear(); + buffer_.clear(); + nesting_depth_ = 0; + } + + void reset(Sink&& sink) + { + sink_ = std::move(sink); + reset(); + } + +private: + // Implementing methods + + void visit_flush() override + { + sink_.flush(); + } + + bool visit_begin_object(semantic_tag, const ser_context&, std::error_code& ec) override + { + if (JSONCONS_UNLIKELY(++nesting_depth_ > options_.max_nesting_depth())) + { + ec = bson_errc::max_nesting_depth_exceeded; + return false; + } + if (buffer_.size() > 0) + { + if (stack_.empty()) + { + ec = bson_errc::expected_bson_document; + return false; + } + before_value(jsoncons::bson::bson_type::document_type); + } + + stack_.emplace_back(jsoncons::bson::bson_container_type::document, buffer_.size()); + buffer_.insert(buffer_.end(), sizeof(int32_t), 0); + + return true; + } + + bool visit_end_object(const ser_context&, std::error_code&) override + { + JSONCONS_ASSERT(!stack_.empty()); + --nesting_depth_; + + buffer_.push_back(0x00); + + std::size_t length = buffer_.size() - stack_.back().offset(); + binary::native_to_little(static_cast(length), buffer_.begin()+stack_.back().offset()); + + stack_.pop_back(); + if (stack_.empty()) + { + for (auto c : buffer_) + { + sink_.push_back(c); + } + } + return true; + } + + bool visit_begin_array(semantic_tag, const ser_context&, std::error_code& ec) override + { + if (JSONCONS_UNLIKELY(++nesting_depth_ > options_.max_nesting_depth())) + { + ec = bson_errc::max_nesting_depth_exceeded; + return false; + } + if (buffer_.size() > 0) + { + if (stack_.empty()) + { + ec = bson_errc::expected_bson_document; + return false; + } + before_value(jsoncons::bson::bson_type::array_type); + } + stack_.emplace_back(jsoncons::bson::bson_container_type::array, buffer_.size()); + buffer_.insert(buffer_.end(), sizeof(int32_t), 0); + return true; + } + + bool visit_end_array(const ser_context&, std::error_code&) override + { + JSONCONS_ASSERT(!stack_.empty()); + --nesting_depth_; + + buffer_.push_back(0x00); + + std::size_t length = buffer_.size() - stack_.back().offset(); + binary::native_to_little(static_cast(length), buffer_.begin()+stack_.back().offset()); + + stack_.pop_back(); + if (stack_.empty()) + { + for (auto c : buffer_) + { + sink_.push_back(c); + } + } + return true; + } + + bool visit_key(const string_view_type& name, const ser_context&, std::error_code&) override + { + stack_.back().member_offset(buffer_.size()); + buffer_.push_back(0x00); // reserve space for code + for (auto c : name) + { + buffer_.push_back(c); + } + buffer_.push_back(0x00); + return true; + } + + bool visit_null(semantic_tag tag, const ser_context&, std::error_code& ec) override + { + if (stack_.empty()) + { + ec = bson_errc::expected_bson_document; + return false; + } + switch (tag) + { + case semantic_tag::undefined: + before_value(jsoncons::bson::bson_type::undefined_type); + break; + default: + before_value(jsoncons::bson::bson_type::null_type); + break; + } + return true; + } + + bool visit_bool(bool val, semantic_tag, const ser_context&, std::error_code& ec) override + { + if (stack_.empty()) + { + ec = bson_errc::expected_bson_document; + return false; + } + before_value(jsoncons::bson::bson_type::bool_type); + if (val) + { + buffer_.push_back(0x01); + } + else + { + buffer_.push_back(0x00); + } + + return true; + } + + bool visit_string(const string_view_type& sv, semantic_tag tag, const ser_context&, std::error_code& ec) override + { + if (stack_.empty()) + { + ec = bson_errc::expected_bson_document; + return false; + } + + switch (tag) + { + case semantic_tag::float128: + { + before_value(jsoncons::bson::bson_type::decimal128_type); + decimal128_t dec; + auto rc = decimal128_from_chars(sv.data(), sv.data()+sv.size(), dec); + if (rc.ec != std::errc()) + { + ec = bson_errc::invalid_decimal128_string; + return false; + } + binary::native_to_little(dec.low,std::back_inserter(buffer_)); + binary::native_to_little(dec.high,std::back_inserter(buffer_)); + break; + } + case semantic_tag::id: + { + before_value(jsoncons::bson::bson_type::object_id_type); + oid_t oid(sv); + for (auto b : oid) + { + buffer_.push_back(b); + } + break; + } + case semantic_tag::regex: + { + before_value(jsoncons::bson::bson_type::regex_type); + std::size_t first = sv.find_first_of('/'); + std::size_t last = sv.find_last_of('/'); + if (first == string_view::npos || last == string_view::npos || first == last) + { + ec = bson_errc::invalid_regex_string; + return false; + } + string_view regex = sv.substr(first+1,last-1); + for (auto c : regex) + { + buffer_.push_back(c); + } + buffer_.push_back(0x00); + string_view options = sv.substr(last+1); + for (auto c : options) + { + buffer_.push_back(c); + } + buffer_.push_back(0x00); + break; + } + default: + switch (tag) + { + case semantic_tag::code: + before_value(jsoncons::bson::bson_type::javascript_type); + break; + default: + before_value(jsoncons::bson::bson_type::string_type); + break; + } + std::size_t offset = buffer_.size(); + buffer_.insert(buffer_.end(), sizeof(int32_t), 0); + std::size_t string_offset = buffer_.size(); + auto sink = unicode_traits::validate(sv.data(), sv.size()); + if (sink.ec != unicode_traits::conv_errc()) + { + ec = bson_errc::invalid_utf8_text_string; + return false; + } + for (auto c : sv) + { + buffer_.push_back(c); + } + buffer_.push_back(0x00); + std::size_t length = buffer_.size() - string_offset; + binary::native_to_little(static_cast(length), buffer_.begin()+offset); + break; + } + + return true; + } + + bool visit_byte_string(const byte_string_view& b, + semantic_tag, + const ser_context&, + std::error_code& ec) override + { + if (stack_.empty()) + { + ec = bson_errc::expected_bson_document; + return false; + } + before_value(jsoncons::bson::bson_type::binary_type); + + std::size_t offset = buffer_.size(); + buffer_.insert(buffer_.end(), sizeof(int32_t), 0); + std::size_t string_offset = buffer_.size(); + + buffer_.push_back(0x80); // default subtype + + for (auto c : b) + { + buffer_.push_back(c); + } + std::size_t length = buffer_.size() - string_offset - 1; + binary::native_to_little(static_cast(length), buffer_.begin()+offset); + + return true; + } + + bool visit_byte_string(const byte_string_view& b, + uint64_t ext_tag, + const ser_context&, + std::error_code& ec) override + { + if (stack_.empty()) + { + ec = bson_errc::expected_bson_document; + return false; + } + before_value(jsoncons::bson::bson_type::binary_type); + + std::size_t offset = buffer_.size(); + buffer_.insert(buffer_.end(), sizeof(int32_t), 0); + std::size_t string_offset = buffer_.size(); + + buffer_.push_back(static_cast(ext_tag)); // default subtype + + for (auto c : b) + { + buffer_.push_back(c); + } + std::size_t length = buffer_.size() - string_offset - 1; + binary::native_to_little(static_cast(length), buffer_.begin()+offset); + + return true; + } + + bool visit_int64(int64_t val, + semantic_tag tag, + const ser_context&, + std::error_code& ec) override + { + static constexpr int64_t min_value_div_1000 = (std::numeric_limits::min)() / 1000; + static constexpr int64_t max_value_div_1000 = (std::numeric_limits::max)() / 1000; + if (stack_.empty()) + { + ec = bson_errc::expected_bson_document; + return false; + } + + switch (tag) + { + case semantic_tag::epoch_second: + if (val < min_value_div_1000) + { + ec = bson_errc::datetime_too_small; + return false; + } + if (val > max_value_div_1000) + { + ec = bson_errc::datetime_too_large; + return false; + } + before_value(jsoncons::bson::bson_type::datetime_type); + binary::native_to_little(val*millis_in_second,std::back_inserter(buffer_)); + return true; + case semantic_tag::epoch_milli: + before_value(jsoncons::bson::bson_type::datetime_type); + binary::native_to_little(val,std::back_inserter(buffer_)); + return true; + case semantic_tag::epoch_nano: + before_value(jsoncons::bson::bson_type::datetime_type); + if (val != 0) + { + val /= nanos_in_milli; + } + binary::native_to_little(static_cast(val),std::back_inserter(buffer_)); + return true; + default: + { + if (val >= (std::numeric_limits::lowest)() && val <= (std::numeric_limits::max)()) + { + before_value(jsoncons::bson::bson_type::int32_type); + binary::native_to_little(static_cast(val),std::back_inserter(buffer_)); + } + else + { + before_value(jsoncons::bson::bson_type::int64_type); + binary::native_to_little(static_cast(val),std::back_inserter(buffer_)); + } + return true; + } + } + } + + bool visit_uint64(uint64_t val, + semantic_tag tag, + const ser_context&, + std::error_code& ec) override + { + static constexpr uint64_t max_value_div_1000 = (std::numeric_limits::max)() / 1000; + if (stack_.empty()) + { + ec = bson_errc::expected_bson_document; + return false; + } + + switch (tag) + { + case semantic_tag::epoch_second: + if (val > max_value_div_1000) + { + ec = bson_errc::datetime_too_large; + return false; + } + before_value(jsoncons::bson::bson_type::datetime_type); + binary::native_to_little(static_cast(val*millis_in_second),std::back_inserter(buffer_)); + return true; + case semantic_tag::epoch_milli: + before_value(jsoncons::bson::bson_type::datetime_type); + binary::native_to_little(static_cast(val),std::back_inserter(buffer_)); + return true; + case semantic_tag::epoch_nano: + before_value(jsoncons::bson::bson_type::datetime_type); + if (val != 0) + { + val /= nanos_in_second; + } + binary::native_to_little(static_cast(val),std::back_inserter(buffer_)); + return true; + default: + { + bool more; + if (val <= static_cast((std::numeric_limits::max)())) + { + before_value(jsoncons::bson::bson_type::int32_type); + binary::native_to_little(static_cast(val),std::back_inserter(buffer_)); + more = true; + } + else if (val <= static_cast((std::numeric_limits::max)())) + { + before_value(jsoncons::bson::bson_type::int64_type); + binary::native_to_little(static_cast(val),std::back_inserter(buffer_)); + more = true; + } + else + { + ec = bson_errc::number_too_large; + more = false; + } + return more; + } + } + } + + bool visit_double(double val, + semantic_tag, + const ser_context&, + std::error_code& ec) override + { + if (stack_.empty()) + { + ec = bson_errc::expected_bson_document; + return false; + } + before_value(jsoncons::bson::bson_type::double_type); + binary::native_to_little(val,std::back_inserter(buffer_)); + return true; + } + + void before_value(uint8_t code) + { + JSONCONS_ASSERT(!stack_.empty()); + if (stack_.back().is_object()) + { + buffer_[stack_.back().member_offset()] = code; + } + else + { + buffer_.push_back(code); + std::string name = std::to_string(stack_.back().next_index()); + buffer_.insert(buffer_.end(), name.begin(), name.end()); + buffer_.push_back(0x00); + } + } +}; + +using bson_stream_encoder = basic_bson_encoder; +using bson_bytes_encoder = basic_bson_encoder>>; + +#if !defined(JSONCONS_NO_DEPRECATED) +template +using basic_bson_serializer = basic_bson_encoder; + +JSONCONS_DEPRECATED_MSG("Instead, use bson_stream_encoder") typedef bson_stream_encoder bson_encoder; +JSONCONS_DEPRECATED_MSG("Instead, use bson_stream_encoder") typedef bson_stream_encoder bson_serializer; +JSONCONS_DEPRECATED_MSG("Instead, use bson_bytes_encoder") typedef bson_bytes_encoder bson_buffer_serializer; + +#endif + +}} +#endif diff --git a/include/jsoncons_ext/bson/bson_error.hpp b/include/jsoncons_ext/bson/bson_error.hpp new file mode 100644 index 0000000..85cf24d --- /dev/null +++ b/include/jsoncons_ext/bson/bson_error.hpp @@ -0,0 +1,103 @@ +/// Copyright 2018 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_BSON_BSON_ERROR_HPP +#define JSONCONS_BSON_BSON_ERROR_HPP + +#include +#include + +namespace jsoncons { namespace bson { + +enum class bson_errc +{ + success = 0, + unexpected_eof = 1, + source_error, + invalid_utf8_text_string, + max_nesting_depth_exceeded, + string_length_is_non_positive, + length_is_negative, + number_too_large, + invalid_decimal128_string, + datetime_too_small, + datetime_too_large, + expected_bson_document, + invalid_regex_string, + size_mismatch, + unknown_type +}; + +class bson_error_category_impl + : public std::error_category +{ +public: + const char* name() const noexcept override + { + return "jsoncons/bson"; + } + std::string message(int ev) const override + { + switch (static_cast(ev)) + { + case bson_errc::unexpected_eof: + return "Unexpected end of file"; + case bson_errc::source_error: + return "Source error"; + case bson_errc::invalid_utf8_text_string: + return "Illegal UTF-8 encoding in text string"; + case bson_errc::max_nesting_depth_exceeded: + return "Data item nesting exceeds limit in options"; + case bson_errc::string_length_is_non_positive: + return "Request for the length of a string returned a non-positive result"; + case bson_errc::length_is_negative: + return "Request for the length of a binary returned a negative result"; + case bson_errc::unknown_type: + return "An unknown type was found in the stream"; + case bson_errc::number_too_large: + return "Number too large"; + case bson_errc::invalid_decimal128_string: + return "Invalid decimal128 string"; + case bson_errc::datetime_too_large: + return "datetime too large"; + case bson_errc::datetime_too_small: + return "datetime too small"; + case bson_errc::expected_bson_document: + return "Expected BSON document"; + case bson_errc::invalid_regex_string: + return "Invalid regex string"; + case bson_errc::size_mismatch: + return "Document or array size doesn't match bytes read"; + default: + return "Unknown BSON parser error"; + } + } +}; + +inline +const std::error_category& bson_error_category() +{ + static bson_error_category_impl instance; + return instance; +} + +inline +std::error_code make_error_code(bson_errc result) +{ + return std::error_code(static_cast(result),bson_error_category()); +} + + +}} + +namespace std { + template<> + struct is_error_code_enum : public true_type + { + }; +} + +#endif diff --git a/include/jsoncons_ext/bson/bson_oid.hpp b/include/jsoncons_ext/bson/bson_oid.hpp new file mode 100644 index 0000000..065d8da --- /dev/null +++ b/include/jsoncons_ext/bson/bson_oid.hpp @@ -0,0 +1,245 @@ +#ifndef JSONCONS_BSON_BSON_OID_HPP +#define JSONCONS_BSON_BSON_OID_HPP + +/* + * Implements class oid_t and non member function bson_oid_to_string + * + * Based on the libjson functions bson_oid_to_string + * and bson_oid_init_from_string_unsafe , available at + * https://github.com/mongodb/mongo-c-driver/blob/master/src/libbson/src/bson/bson-oid.h + * and https://github.com/mongodb/mongo-c-driver/blob/master/src/libbson/src/bson/bson-oid.c + * +*/ + +/* + * Copyright 2015 MongoDB, Inc. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +namespace jsoncons { namespace bson { + + class oid_t + { + std::array bytes_; + public: + using iterator = std::array::iterator; + using const_iterator = std::array::const_iterator; + + oid_t(const std::array& bytes) + : bytes_(bytes) + { + } + oid_t(uint8_t data[12]) + { + std::memcpy(bytes_.data(),data,12); + } + + oid_t(const string_view& str) + { + for (std::size_t i = 0; i < bytes_.size(); i++) + { + bytes_[i] = ((parse_hex_char (str[2 * i]) << 4) | + (parse_hex_char (str[2 * i + 1]))); + } + } + + const uint8_t* data() const + { + return bytes_.data(); + } + + std::size_t size() const + { + return bytes_.size(); + } + + iterator begin() + { + return bytes_.begin(); + } + + iterator end() + { + return bytes_.end(); + } + + const_iterator begin() const + { + return bytes_.begin(); + } + + const_iterator end() const + { + return bytes_.end(); + } + + private: + + static uint8_t parse_hex_char (char hex) + { + switch (hex) { + case '0': + return 0; + case '1': + return 1; + case '2': + return 2; + case '3': + return 3; + case '4': + return 4; + case '5': + return 5; + case '6': + return 6; + case '7': + return 7; + case '8': + return 8; + case '9': + return 9; + case 'a': + case 'A': + return 0xa; + case 'b': + case 'B': + return 0xb; + case 'c': + case 'C': + return 0xc; + case 'd': + case 'D': + return 0xd; + case 'e': + case 'E': + return 0xe; + case 'f': + case 'F': + return 0xf; + default: + return 0; + } + } + }; + + namespace detail { + + inline + const uint16_t* get_hex_char_pairs(std::true_type) // big endian + { + static const uint16_t hex_char_pairs[] = { + 12336, 12337, 12338, 12339, 12340, 12341, 12342, 12343, 12344, 12345, 12385, + 12386, 12387, 12388, 12389, 12390, 12592, 12593, 12594, 12595, 12596, 12597, + 12598, 12599, 12600, 12601, 12641, 12642, 12643, 12644, 12645, 12646, 12848, + 12849, 12850, 12851, 12852, 12853, 12854, 12855, 12856, 12857, 12897, 12898, + 12899, 12900, 12901, 12902, 13104, 13105, 13106, 13107, 13108, 13109, 13110, + 13111, 13112, 13113, 13153, 13154, 13155, 13156, 13157, 13158, 13360, 13361, + 13362, 13363, 13364, 13365, 13366, 13367, 13368, 13369, 13409, 13410, 13411, + 13412, 13413, 13414, 13616, 13617, 13618, 13619, 13620, 13621, 13622, 13623, + 13624, 13625, 13665, 13666, 13667, 13668, 13669, 13670, 13872, 13873, 13874, + 13875, 13876, 13877, 13878, 13879, 13880, 13881, 13921, 13922, 13923, 13924, + 13925, 13926, 14128, 14129, 14130, 14131, 14132, 14133, 14134, 14135, 14136, + 14137, 14177, 14178, 14179, 14180, 14181, 14182, 14384, 14385, 14386, 14387, + 14388, 14389, 14390, 14391, 14392, 14393, 14433, 14434, 14435, 14436, 14437, + 14438, 14640, 14641, 14642, 14643, 14644, 14645, 14646, 14647, 14648, 14649, + 14689, 14690, 14691, 14692, 14693, 14694, 24880, 24881, 24882, 24883, 24884, + 24885, 24886, 24887, 24888, 24889, 24929, 24930, 24931, 24932, 24933, 24934, + 25136, 25137, 25138, 25139, 25140, 25141, 25142, 25143, 25144, 25145, 25185, + 25186, 25187, 25188, 25189, 25190, 25392, 25393, 25394, 25395, 25396, 25397, + 25398, 25399, 25400, 25401, 25441, 25442, 25443, 25444, 25445, 25446, 25648, + 25649, 25650, 25651, 25652, 25653, 25654, 25655, 25656, 25657, 25697, 25698, + 25699, 25700, 25701, 25702, 25904, 25905, 25906, 25907, 25908, 25909, 25910, + 25911, 25912, 25913, 25953, 25954, 25955, 25956, 25957, 25958, 26160, 26161, + 26162, 26163, 26164, 26165, 26166, 26167, 26168, 26169, 26209, 26210, 26211, + 26212, 26213, 26214}; + + return hex_char_pairs; + } + + inline + const uint16_t* get_hex_char_pairs(std::false_type) // little endian + { + static const uint16_t hex_char_pairs[] = { + 12336, 12592, 12848, 13104, 13360, 13616, 13872, 14128, 14384, 14640, 24880, + 25136, 25392, 25648, 25904, 26160, 12337, 12593, 12849, 13105, 13361, 13617, + 13873, 14129, 14385, 14641, 24881, 25137, 25393, 25649, 25905, 26161, 12338, + 12594, 12850, 13106, 13362, 13618, 13874, 14130, 14386, 14642, 24882, 25138, + 25394, 25650, 25906, 26162, 12339, 12595, 12851, 13107, 13363, 13619, 13875, + 14131, 14387, 14643, 24883, 25139, 25395, 25651, 25907, 26163, 12340, 12596, + 12852, 13108, 13364, 13620, 13876, 14132, 14388, 14644, 24884, 25140, 25396, + 25652, 25908, 26164, 12341, 12597, 12853, 13109, 13365, 13621, 13877, 14133, + 14389, 14645, 24885, 25141, 25397, 25653, 25909, 26165, 12342, 12598, 12854, + 13110, 13366, 13622, 13878, 14134, 14390, 14646, 24886, 25142, 25398, 25654, + 25910, 26166, 12343, 12599, 12855, 13111, 13367, 13623, 13879, 14135, 14391, + 14647, 24887, 25143, 25399, 25655, 25911, 26167, 12344, 12600, 12856, 13112, + 13368, 13624, 13880, 14136, 14392, 14648, 24888, 25144, 25400, 25656, 25912, + 26168, 12345, 12601, 12857, 13113, 13369, 13625, 13881, 14137, 14393, 14649, + 24889, 25145, 25401, 25657, 25913, 26169, 12385, 12641, 12897, 13153, 13409, + 13665, 13921, 14177, 14433, 14689, 24929, 25185, 25441, 25697, 25953, 26209, + 12386, 12642, 12898, 13154, 13410, 13666, 13922, 14178, 14434, 14690, 24930, + 25186, 25442, 25698, 25954, 26210, 12387, 12643, 12899, 13155, 13411, 13667, + 13923, 14179, 14435, 14691, 24931, 25187, 25443, 25699, 25955, 26211, 12388, + 12644, 12900, 13156, 13412, 13668, 13924, 14180, 14436, 14692, 24932, 25188, + 25444, 25700, 25956, 26212, 12389, 12645, 12901, 13157, 13413, 13669, 13925, + 14181, 14437, 14693, 24933, 25189, 25445, 25701, 25957, 26213, 12390, 12646, + 12902, 13158, 13414, 13670, 13926, 14182, 14438, 14694, 24934, 25190, 25446, + 25702, 25958, 26214}; + + return hex_char_pairs; + } + + inline + void init_hex_char_pairs(const oid_t& oid, uint16_t* data) + { + const uint8_t* bytes = oid.data(); + const uint16_t* gHexCharPairs = get_hex_char_pairs(std::integral_constant()); + + data[0] = gHexCharPairs[bytes[0]]; + data[1] = gHexCharPairs[bytes[1]]; + data[2] = gHexCharPairs[bytes[2]]; + data[3] = gHexCharPairs[bytes[3]]; + data[4] = gHexCharPairs[bytes[4]]; + data[5] = gHexCharPairs[bytes[5]]; + data[6] = gHexCharPairs[bytes[6]]; + data[7] = gHexCharPairs[bytes[7]]; + data[8] = gHexCharPairs[bytes[8]]; + data[9] = gHexCharPairs[bytes[9]]; + data[10] = gHexCharPairs[bytes[10]]; + data[11] = gHexCharPairs[bytes[11]]; + } + + } // namsepace detail + + template + inline + void to_string(const oid_t& oid, StringT& s) + { + s.resize(24); + detail::init_hex_char_pairs(oid, reinterpret_cast(&s[0])); + } + +} // namespace bson +} // namespace jsoncons + +#endif diff --git a/include/jsoncons_ext/bson/bson_options.hpp b/include/jsoncons_ext/bson/bson_options.hpp new file mode 100644 index 0000000..0e4620e --- /dev/null +++ b/include/jsoncons_ext/bson/bson_options.hpp @@ -0,0 +1,75 @@ +// Copyright 2019 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_BSON_BSON_OPTIONS_HPP +#define JSONCONS_BSON_BSON_OPTIONS_HPP + +#include +#include // std::numeric_limits +#include +#include +#include + +namespace jsoncons { namespace bson { + +class bson_options; + +class bson_options_common +{ + friend class bson_options; + + int max_nesting_depth_; +protected: + virtual ~bson_options_common() = default; + + bson_options_common() + : max_nesting_depth_(1024) + { + } + + bson_options_common(const bson_options_common&) = default; + bson_options_common& operator=(const bson_options_common&) = default; + bson_options_common(bson_options_common&&) = default; + bson_options_common& operator=(bson_options_common&&) = default; +public: + int max_nesting_depth() const + { + return max_nesting_depth_; + } +}; + +class bson_decode_options : public virtual bson_options_common +{ + friend class bson_options; +public: + bson_decode_options() + { + } +}; + +class bson_encode_options : public virtual bson_options_common +{ + friend class bson_options; +public: + bson_encode_options() + { + } +}; + +class bson_options final : public bson_decode_options, public bson_encode_options +{ +public: + using bson_options_common::max_nesting_depth; + + bson_options& max_nesting_depth(int value) + { + this->max_nesting_depth_ = value; + return *this; + } +}; + +}} +#endif diff --git a/include/jsoncons_ext/bson/bson_parser.hpp b/include/jsoncons_ext/bson/bson_parser.hpp new file mode 100644 index 0000000..2dc6e75 --- /dev/null +++ b/include/jsoncons_ext/bson/bson_parser.hpp @@ -0,0 +1,645 @@ +// Copyright 2017 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_BSON_BSON_PARSER_HPP +#define JSONCONS_BSON_BSON_PARSER_HPP + +#include +#include +#include +#include // std::move +#include +#include +#include +#include +#include +#include +#include +#include +#include + +namespace jsoncons { namespace bson { + +enum class parse_mode {root,accept,document,array,value}; + +struct parse_state +{ + parse_mode mode; + std::size_t length; + std::size_t pos; + uint8_t type; + std::size_t index; + + parse_state(parse_mode mode_, std::size_t length_, std::size_t pos_, uint8_t type_ = 0) noexcept + : mode(mode_), length(length_), pos(pos_), type(type_), index(0) + { + } + + parse_state(const parse_state&) = default; + parse_state(parse_state&&) = default; + parse_state& operator=(const parse_state&) = default; + parse_state& operator=(parse_state&&) = default; +}; + +template > +class basic_bson_parser : public ser_context +{ + using char_type = char; + using char_traits_type = std::char_traits; + using temp_allocator_type = Allocator; + using char_allocator_type = typename std::allocator_traits:: template rebind_alloc; + using byte_allocator_type = typename std::allocator_traits:: template rebind_alloc; + using parse_state_allocator_type = typename std::allocator_traits:: template rebind_alloc; + + Source source_; + bson_decode_options options_; + bool more_; + bool done_; + std::vector bytes_buffer_; + std::basic_string,char_allocator_type> text_buffer_; + std::vector state_stack_; +public: + template + basic_bson_parser(Sourceable&& source, + const bson_decode_options& options = bson_decode_options(), + const Allocator alloc = Allocator()) + : source_(std::forward(source)), + options_(options), + more_(true), + done_(false), + text_buffer_(alloc), + state_stack_(alloc) + { + state_stack_.emplace_back(parse_mode::root,0,0); + } + + void restart() + { + more_ = true; + } + + void reset() + { + more_ = true; + done_ = false; + bytes_buffer_.clear(); + text_buffer_.clear(); + state_stack_.clear(); + state_stack_.emplace_back(parse_mode::root,0,0); + } + + template + void reset(Sourceable&& source) + { + source_ = std::forward(source); + reset(); + } + + bool done() const + { + return done_; + } + + bool stopped() const + { + return !more_; + } + + std::size_t line() const override + { + return 0; + } + + std::size_t column() const override + { + return source_.position(); + } + + void array_expected(json_visitor& visitor, std::error_code& ec) + { + if (state_stack_.size() == 2 && state_stack_.back().mode == parse_mode::document) + { + state_stack_.back().mode = parse_mode::array; + more_ = visitor.begin_array(semantic_tag::none, *this, ec); + } + } + + void parse(json_visitor& visitor, std::error_code& ec) + { + if (JSONCONS_UNLIKELY(source_.is_error())) + { + ec = bson_errc::source_error; + more_ = false; + return; + } + + while (!done_ && more_) + { + switch (state_stack_.back().mode) + { + case parse_mode::root: + state_stack_.back().mode = parse_mode::accept; + begin_document(visitor, ec); + break; + case parse_mode::document: + { + uint8_t type; + std::size_t n = source_.read(&type, 1); + state_stack_.back().pos += n; + if (JSONCONS_UNLIKELY(n != 1)) + { + ec = bson_errc::unexpected_eof; + more_ = false; + return; + } + if (type != 0x00) + { + read_e_name(visitor,jsoncons::bson::bson_container_type::document,ec); + state_stack_.back().mode = parse_mode::value; + state_stack_.back().type = type; + } + else + { + end_document(visitor,ec); + } + break; + } + case parse_mode::array: + { + uint8_t type; + std::size_t n = source_.read(&type, 1); + state_stack_.back().pos += n; + if (JSONCONS_UNLIKELY(n != 1)) + { + ec = bson_errc::unexpected_eof; + more_ = false; + return; + } + if (type != 0x00) + { + read_e_name(visitor,jsoncons::bson::bson_container_type::array,ec); + read_value(visitor, type, ec); + } + else + { + end_array(visitor,ec); + } + break; + } + case parse_mode::value: + state_stack_.back().mode = parse_mode::document; + read_value(visitor,state_stack_.back().type,ec); + break; + case parse_mode::accept: + { + JSONCONS_ASSERT(state_stack_.size() == 1); + state_stack_.clear(); + more_ = false; + done_ = true; + visitor.flush(); + break; + } + } + } + } + +private: + + void begin_document(json_visitor& visitor, std::error_code& ec) + { + if (JSONCONS_UNLIKELY(static_cast(state_stack_.size()) > options_.max_nesting_depth())) + { + ec = bson_errc::max_nesting_depth_exceeded; + more_ = false; + return; + } + + uint8_t buf[sizeof(int32_t)]; + size_t n = source_.read(buf, sizeof(int32_t)); + if (JSONCONS_UNLIKELY(n != sizeof(int32_t))) + { + ec = bson_errc::unexpected_eof; + more_ = false; + return; + } + + auto length = binary::little_to_native(buf, sizeof(buf)); + + more_ = visitor.begin_object(semantic_tag::none, *this, ec); + state_stack_.emplace_back(parse_mode::document,length,n); + } + + void end_document(json_visitor& visitor, std::error_code& ec) + { + JSONCONS_ASSERT(state_stack_.size() >= 2); + + more_ = visitor.end_object(*this,ec); + if (JSONCONS_UNLIKELY(state_stack_.back().pos != state_stack_.back().length)) + { + ec = bson_errc::size_mismatch; + more_ = false; + return; + } + std::size_t pos = state_stack_.back().pos; + state_stack_.pop_back(); + state_stack_.back().pos += pos; + } + + void begin_array(json_visitor& visitor, std::error_code& ec) + { + if (JSONCONS_UNLIKELY(static_cast(state_stack_.size()) > options_.max_nesting_depth())) + { + ec = bson_errc::max_nesting_depth_exceeded; + more_ = false; + return; + } + uint8_t buf[sizeof(int32_t)]; + std::size_t n = source_.read(buf, sizeof(int32_t)); + if (JSONCONS_UNLIKELY(n != sizeof(int32_t))) + { + ec = bson_errc::unexpected_eof; + more_ = false; + return; + } + auto length = binary::little_to_native(buf, sizeof(buf)); + + more_ = visitor.begin_array(semantic_tag::none, *this, ec); + if (ec) + { + return; + } + state_stack_.emplace_back(parse_mode::array, length, n); + } + + void end_array(json_visitor& visitor, std::error_code& ec) + { + JSONCONS_ASSERT(state_stack_.size() >= 2); + + more_ = visitor.end_array(*this, ec); + if (JSONCONS_UNLIKELY(state_stack_.back().pos != state_stack_.back().length)) + { + ec = bson_errc::size_mismatch; + more_ = false; + return; + } + std::size_t pos = state_stack_.back().pos; + state_stack_.pop_back(); + state_stack_.back().pos += pos; + } + + void read_e_name(json_visitor& visitor, jsoncons::bson::bson_container_type type, std::error_code& ec) + { + text_buffer_.clear(); + read_cstring(ec); + if (ec) + { + return; + } + if (type == jsoncons::bson::bson_container_type::document) + { + auto result = unicode_traits::validate(text_buffer_.data(),text_buffer_.size()); + if (JSONCONS_UNLIKELY(result.ec != unicode_traits::conv_errc())) + { + ec = bson_errc::invalid_utf8_text_string; + more_ = false; + return; + } + more_ = visitor.key(jsoncons::basic_string_view(text_buffer_.data(),text_buffer_.length()), *this, ec); + } + } + + void read_value(json_visitor& visitor, uint8_t type, std::error_code& ec) + { + switch (type) + { + case jsoncons::bson::bson_type::double_type: + { + uint8_t buf[sizeof(double)]; + std::size_t n = source_.read(buf, sizeof(double)); + state_stack_.back().pos += n; + if (JSONCONS_UNLIKELY(n != sizeof(double))) + { + ec = bson_errc::unexpected_eof; + more_ = false; + return; + } + double res = binary::little_to_native(buf, sizeof(buf)); + more_ = visitor.double_value(res, semantic_tag::none, *this, ec); + break; + } + case jsoncons::bson::bson_type::symbol_type: + case jsoncons::bson::bson_type::min_key_type: + case jsoncons::bson::bson_type::max_key_type: + case jsoncons::bson::bson_type::string_type: + { + text_buffer_.clear(); + read_string(ec); + if (ec) + { + return; + } + auto result = unicode_traits::validate(text_buffer_.data(), text_buffer_.size()); + if (JSONCONS_UNLIKELY(result.ec != unicode_traits::conv_errc())) + { + ec = bson_errc::invalid_utf8_text_string; + more_ = false; + return; + } + more_ = visitor.string_value(text_buffer_, semantic_tag::none, *this, ec); + break; + } + case jsoncons::bson::bson_type::javascript_type: + { + text_buffer_.clear(); + read_string(ec); + if (ec) + { + return; + } + auto result = unicode_traits::validate(text_buffer_.data(), text_buffer_.size()); + if (JSONCONS_UNLIKELY(result.ec != unicode_traits::conv_errc())) + { + ec = bson_errc::invalid_utf8_text_string; + more_ = false; + return; + } + more_ = visitor.string_value(text_buffer_, semantic_tag::code, *this, ec); + break; + } + case jsoncons::bson::bson_type::regex_type: + { + text_buffer_.clear(); + text_buffer_.push_back('/'); + read_cstring(ec); + if (ec) + { + return; + } + text_buffer_.push_back('/'); + read_cstring(ec); + if (ec) + { + return; + } + more_ = visitor.string_value(text_buffer_, semantic_tag::regex, *this, ec); + break; + } + case jsoncons::bson::bson_type::document_type: + { + begin_document(visitor,ec); + break; + } + + case jsoncons::bson::bson_type::array_type: + { + begin_array(visitor,ec); + break; + } + case jsoncons::bson::bson_type::undefined_type: + { + more_ = visitor.null_value(semantic_tag::undefined, *this, ec); + break; + } + case jsoncons::bson::bson_type::null_type: + { + more_ = visitor.null_value(semantic_tag::none, *this, ec); + break; + } + case jsoncons::bson::bson_type::bool_type: + { + uint8_t c; + std::size_t n = source_.read(&c, 1); + state_stack_.back().pos += n; + if (JSONCONS_UNLIKELY(n != 1)) + { + ec = bson_errc::unexpected_eof; + more_ = false; + return; + } + more_ = visitor.bool_value(c != 0, semantic_tag::none, *this, ec); + break; + } + case jsoncons::bson::bson_type::int32_type: + { + uint8_t buf[sizeof(int32_t)]; + std::size_t n = source_.read(buf, sizeof(int32_t)); + state_stack_.back().pos += n; + if (JSONCONS_UNLIKELY(n != sizeof(int32_t))) + { + ec = bson_errc::unexpected_eof; + more_ = false; + return; + } + auto val = binary::little_to_native(buf, sizeof(buf)); + more_ = visitor.int64_value(val, semantic_tag::none, *this, ec); + break; + } + + case jsoncons::bson::bson_type::timestamp_type: + { + uint8_t buf[sizeof(uint64_t)]; + std::size_t n = source_.read(buf, sizeof(uint64_t)); + state_stack_.back().pos += n; + if (JSONCONS_UNLIKELY(n != sizeof(uint64_t))) + { + ec = bson_errc::unexpected_eof; + more_ = false; + return; + } + auto val = binary::little_to_native(buf, sizeof(buf)); + more_ = visitor.uint64_value(val, semantic_tag::none, *this, ec); + break; + } + + case jsoncons::bson::bson_type::int64_type: + { + uint8_t buf[sizeof(int64_t)]; + std::size_t n = source_.read(buf, sizeof(int64_t)); + state_stack_.back().pos += n; + if (JSONCONS_UNLIKELY(n != sizeof(int64_t))) + { + ec = bson_errc::unexpected_eof; + more_ = false; + return; + } + auto val = binary::little_to_native(buf, sizeof(buf)); + more_ = visitor.int64_value(val, semantic_tag::none, *this, ec); + break; + } + + case jsoncons::bson::bson_type::datetime_type: + { + uint8_t buf[sizeof(int64_t)]; + std::size_t n = source_.read(buf, sizeof(int64_t)); + state_stack_.back().pos += n; + if (JSONCONS_UNLIKELY(n != sizeof(int64_t))) + { + ec = bson_errc::unexpected_eof; + more_ = false; + return; + } + auto val = binary::little_to_native(buf, sizeof(buf)); + more_ = visitor.int64_value(val, semantic_tag::epoch_milli, *this, ec); + break; + } + case jsoncons::bson::bson_type::binary_type: + { + uint8_t buf[sizeof(int32_t)]; + std::size_t n = source_.read(buf, sizeof(int32_t)); + state_stack_.back().pos += n; + if (JSONCONS_UNLIKELY(n != sizeof(int32_t))) + { + ec = bson_errc::unexpected_eof; + more_ = false; + return; + } + const auto len = binary::little_to_native(buf, sizeof(buf)); + if (JSONCONS_UNLIKELY(len < 0)) + { + ec = bson_errc::length_is_negative; + more_ = false; + return; + } + uint8_t subtype; + n = source_.read(&subtype, 1); + state_stack_.back().pos += n; + if (JSONCONS_UNLIKELY(n != 1)) + { + ec = bson_errc::unexpected_eof; + more_ = false; + return; + } + + bytes_buffer_.clear(); + n = source_reader::read(source_, bytes_buffer_, len); + state_stack_.back().pos += n; + if (JSONCONS_UNLIKELY(n != static_cast(len))) + { + ec = bson_errc::unexpected_eof; + more_ = false; + return; + } + + more_ = visitor.byte_string_value(bytes_buffer_, + subtype, + *this, + ec); + break; + } + case jsoncons::bson::bson_type::decimal128_type: + { + uint8_t buf[sizeof(uint64_t)*2]; + std::size_t n = source_.read(buf, sizeof(buf)); + state_stack_.back().pos += n; + if (JSONCONS_UNLIKELY(n != sizeof(buf))) + { + ec = bson_errc::unexpected_eof; + more_ = false; + return; + } + + decimal128_t dec; + dec.low = binary::little_to_native(buf, sizeof(uint64_t)); + dec.high = binary::little_to_native(buf+sizeof(uint64_t), sizeof(uint64_t)); + + text_buffer_.clear(); + text_buffer_.resize(bson::decimal128_limits::buf_size); + auto r = bson::decimal128_to_chars(&text_buffer_[0], &text_buffer_[0]+text_buffer_.size(), dec); + more_ = visitor.string_value(string_view(text_buffer_.data(),static_cast(r.ptr-text_buffer_.data())), semantic_tag::float128, *this, ec); + break; + } + case jsoncons::bson::bson_type::object_id_type: + { + uint8_t buf[12]; + std::size_t n = source_.read(buf, sizeof(buf)); + state_stack_.back().pos += n; + if (JSONCONS_UNLIKELY(n != sizeof(buf))) + { + ec = bson_errc::unexpected_eof; + more_ = false; + return; + } + + oid_t oid(buf); + to_string(oid, text_buffer_); + + more_ = visitor.string_value(text_buffer_, semantic_tag::id, *this, ec); + break; + } + default: + { + ec = bson_errc::unknown_type; + more_ = false; + return; + } + } + } + + void read_cstring(std::error_code& ec) + { + uint8_t c = 0xff; + while (true) + { + std::size_t n = source_.read(&c, 1); + state_stack_.back().pos += n; + if (JSONCONS_UNLIKELY(n != 1)) + { + ec = bson_errc::unexpected_eof; + more_ = false; + return; + } + if (c == 0) + { + break; + } + text_buffer_.push_back(c); + } + } + + void read_string(std::error_code& ec) + { + uint8_t buf[sizeof(int32_t)]; + std::size_t n = source_.read(buf, sizeof(int32_t)); + state_stack_.back().pos += n; + if (JSONCONS_UNLIKELY(n != sizeof(int32_t))) + { + ec = bson_errc::unexpected_eof; + more_ = false; + return; + } + auto len = binary::little_to_native(buf, sizeof(buf)); + if (JSONCONS_UNLIKELY(len < 1)) + { + ec = bson_errc::string_length_is_non_positive; + more_ = false; + return; + } + + std::size_t size = static_cast(len) - static_cast(1); + n = source_reader::read(source_, text_buffer_, size); + state_stack_.back().pos += n; + + if (JSONCONS_UNLIKELY(n != size)) + { + ec = bson_errc::unexpected_eof; + more_ = false; + return; + } + uint8_t c; + n = source_.read(&c, 1); + state_stack_.back().pos += n; + if (JSONCONS_UNLIKELY(n != 1)) + { + ec = bson_errc::unexpected_eof; + more_ = false; + return; + } + } +}; + +}} + +#endif diff --git a/include/jsoncons_ext/bson/bson_reader.hpp b/include/jsoncons_ext/bson/bson_reader.hpp new file mode 100644 index 0000000..0079cc9 --- /dev/null +++ b/include/jsoncons_ext/bson/bson_reader.hpp @@ -0,0 +1,92 @@ +// Copyright 2017 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_BSON_BSON_READER_HPP +#define JSONCONS_BSON_BSON_READER_HPP + +#include +#include +#include +#include // std::move +#include +#include +#include +#include +#include +#include +#include + +namespace jsoncons { namespace bson { + +template > +class basic_bson_reader +{ + basic_bson_parser parser_; + json_visitor& visitor_; +public: + template + basic_bson_reader(Sourceable&& source, + json_visitor& visitor, + const Allocator alloc) + : basic_bson_reader(std::forward(source), + visitor, + bson_decode_options(), + alloc) + { + } + + template + basic_bson_reader(Sourceable&& source, + json_visitor& visitor, + const bson_decode_options& options = bson_decode_options(), + const Allocator alloc=Allocator()) + : parser_(std::forward(source), options, alloc), + visitor_(visitor) + { + } + + void read() + { + std::error_code ec; + read(ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec,line(),column())); + } + } + + void read(std::error_code& ec) + { + parser_.reset(); + parser_.parse(visitor_, ec); + if (ec) + { + return; + } + } + + std::size_t line() const + { + return parser_.line(); + } + + std::size_t column() const + { + return parser_.column(); + } +}; + +using bson_stream_reader = basic_bson_reader; +using bson_bytes_reader = basic_bson_reader; + +#if !defined(JSONCONS_NO_DEPRECATED) +JSONCONS_DEPRECATED_MSG("Instead, use bson_stream_reader") typedef bson_stream_reader bson_reader; +JSONCONS_DEPRECATED_MSG("Instead, use bson_bytes_reader") typedef bson_bytes_reader bson_buffer_reader; +#endif + +}} + +#endif diff --git a/include/jsoncons_ext/bson/bson_type.hpp b/include/jsoncons_ext/bson/bson_type.hpp new file mode 100644 index 0000000..cf12344 --- /dev/null +++ b/include/jsoncons_ext/bson/bson_type.hpp @@ -0,0 +1,44 @@ +// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_BSON_BSON_TYPE_HPP +#define JSONCONS_BSON_BSON_TYPE_HPP + +#include +#include +#include + +namespace jsoncons { namespace bson { + + namespace bson_type + { + const uint8_t double_type = 0x01; + const uint8_t string_type = 0x02; // UTF-8 string + const uint8_t document_type = 0x03; + const uint8_t array_type = 0x04; + const uint8_t binary_type = 0x05; + const uint8_t undefined_type = 0x06; // map to null + const uint8_t object_id_type = 0x07; + const uint8_t bool_type = 0x08; + const uint8_t datetime_type = 0x09; + const uint8_t null_type = 0x0a; + const uint8_t regex_type = 0x0b; + const uint8_t javascript_type = 0x0d; + const uint8_t symbol_type = 0x0e; // deprecated, mapped to string + const uint8_t javascript_with_scope_type = 0x0f; // unsupported + const uint8_t int32_type = 0x10; + const uint8_t timestamp_type = 0x11; // MongoDB internal Timestamp, uint64 + const uint8_t int64_type = 0x12; + const uint8_t decimal128_type = 0x13; + const uint8_t min_key_type = 0xff; + const uint8_t max_key_type = 0x7f; + } + + enum class bson_container_type {document, array}; + +}} + +#endif diff --git a/include/jsoncons_ext/bson/decode_bson.hpp b/include/jsoncons_ext/bson/decode_bson.hpp new file mode 100644 index 0000000..ad352f6 --- /dev/null +++ b/include/jsoncons_ext/bson/decode_bson.hpp @@ -0,0 +1,201 @@ +// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_BSON_DECODE_BSON_HPP +#define JSONCONS_BSON_DECODE_BSON_HPP + +#include +#include +#include +#include // std::enable_if +#include // std::basic_istream +#include +#include +#include +#include + +namespace jsoncons { +namespace bson { + + template + typename std::enable_if::value && + type_traits::is_byte_sequence::value,T>::type + decode_bson(const Source& v, + const bson_decode_options& options = bson_decode_options()) + { + jsoncons::json_decoder decoder; + auto adaptor = make_json_visitor_adaptor(decoder); + basic_bson_reader reader(v, adaptor, options); + reader.read(); + if (!decoder.is_valid()) + { + JSONCONS_THROW(ser_error(conv_errc::conversion_failed, reader.line(), reader.column())); + } + return decoder.get_result(); + } + + template + typename std::enable_if::value && + type_traits::is_byte_sequence::value,T>::type + decode_bson(const Source& v, + const bson_decode_options& options = bson_decode_options()) + { + basic_bson_cursor cursor(v, options); + json_decoder> decoder{}; + + std::error_code ec; + T val = decode_traits::decode(cursor, decoder, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, cursor.context().line(), cursor.context().column())); + } + return val; + } + + template + typename std::enable_if::value,T>::type + decode_bson(std::istream& is, + const bson_decode_options& options = bson_decode_options()) + { + jsoncons::json_decoder decoder; + auto adaptor = make_json_visitor_adaptor(decoder); + bson_stream_reader reader(is, adaptor, options); + reader.read(); + if (!decoder.is_valid()) + { + JSONCONS_THROW(ser_error(conv_errc::conversion_failed, reader.line(), reader.column())); + } + return decoder.get_result(); + } + + template + typename std::enable_if::value,T>::type + decode_bson(std::istream& is, + const bson_decode_options& options = bson_decode_options()) + { + basic_bson_cursor cursor(is, options); + json_decoder> decoder{}; + + std::error_code ec; + T val = decode_traits::decode(cursor, decoder, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, cursor.context().line(), cursor.context().column())); + } + return val; + } + + template + typename std::enable_if::value,T>::type + decode_bson(InputIt first, InputIt last, + const bson_decode_options& options = bson_decode_options()) + { + jsoncons::json_decoder decoder; + auto adaptor = make_json_visitor_adaptor(decoder); + basic_bson_reader> reader(binary_iterator_source(first, last), adaptor, options); + reader.read(); + if (!decoder.is_valid()) + { + JSONCONS_THROW(ser_error(conv_errc::conversion_failed, reader.line(), reader.column())); + } + return decoder.get_result(); + } + + template + typename std::enable_if::value,T>::type + decode_bson(InputIt first, InputIt last, + const bson_decode_options& options = bson_decode_options()) + { + basic_bson_cursor> cursor(binary_iterator_source(first, last), options); + json_decoder> decoder{}; + + std::error_code ec; + T val = decode_traits::decode(cursor, decoder, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, cursor.context().line(), cursor.context().column())); + } + return val; + } + + // With leading allocator parameter + + template + typename std::enable_if::value && + type_traits::is_byte_sequence::value,T>::type + decode_bson(temp_allocator_arg_t, const TempAllocator& temp_alloc, + const Source& v, + const bson_decode_options& options = bson_decode_options()) + { + json_decoder decoder(temp_alloc); + auto adaptor = make_json_visitor_adaptor(decoder); + basic_bson_reader reader(v, adaptor, options, temp_alloc); + reader.read(); + if (!decoder.is_valid()) + { + JSONCONS_THROW(ser_error(conv_errc::conversion_failed, reader.line(), reader.column())); + } + return decoder.get_result(); + } + + template + typename std::enable_if::value && + type_traits::is_byte_sequence::value,T>::type + decode_bson(temp_allocator_arg_t, const TempAllocator& temp_alloc, + const Source& v, + const bson_decode_options& options = bson_decode_options()) + { + basic_bson_cursor cursor(v, options, temp_alloc); + json_decoder,TempAllocator> decoder(temp_alloc, temp_alloc); + + std::error_code ec; + T val = decode_traits::decode(cursor, decoder, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, cursor.context().line(), cursor.context().column())); + } + return val; + } + + template + typename std::enable_if::value,T>::type + decode_bson(temp_allocator_arg_t, const TempAllocator& temp_alloc, + std::istream& is, + const bson_decode_options& options = bson_decode_options()) + { + json_decoder decoder(temp_alloc); + auto adaptor = make_json_visitor_adaptor(decoder); + basic_bson_reader reader(is, adaptor, options, temp_alloc); + reader.read(); + if (!decoder.is_valid()) + { + JSONCONS_THROW(ser_error(conv_errc::conversion_failed, reader.line(), reader.column())); + } + return decoder.get_result(); + } + + template + typename std::enable_if::value,T>::type + decode_bson(temp_allocator_arg_t, const TempAllocator& temp_alloc, + std::istream& is, + const bson_decode_options& options = bson_decode_options()) + { + basic_bson_cursor cursor(is, options, temp_alloc); + json_decoder,TempAllocator> decoder(temp_alloc, temp_alloc); + + std::error_code ec; + T val = decode_traits::decode(cursor, decoder, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, cursor.context().line(), cursor.context().column())); + } + return val; + } + +} // bson +} // jsoncons + +#endif diff --git a/include/jsoncons_ext/bson/encode_bson.hpp b/include/jsoncons_ext/bson/encode_bson.hpp new file mode 100644 index 0000000..55f8cf5 --- /dev/null +++ b/include/jsoncons_ext/bson/encode_bson.hpp @@ -0,0 +1,144 @@ +// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_BSON_ENCODE_BSON_HPP +#define JSONCONS_BSON_ENCODE_BSON_HPP + +#include +#include +#include +#include // std::enable_if +#include // std::basic_istream +#include +#include +#include +#include + +namespace jsoncons { +namespace bson { + + template + typename std::enable_if::value && + type_traits::is_back_insertable_byte_container::value,void>::type + encode_bson(const T& j, + Container& v, + const bson_encode_options& options = bson_encode_options()) + { + using char_type = typename T::char_type; + basic_bson_encoder> encoder(v, options); + auto adaptor = make_json_visitor_adaptor>(encoder); + j.dump(adaptor); + } + + template + typename std::enable_if::value && + type_traits::is_back_insertable_byte_container::value,void>::type + encode_bson(const T& val, + Container& v, + const bson_encode_options& options = bson_encode_options()) + { + basic_bson_encoder> encoder(v, options); + std::error_code ec; + encode_traits::encode(val, encoder, json(), ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec)); + } + } + + template + typename std::enable_if::value,void>::type + encode_bson(const T& j, + std::ostream& os, + const bson_encode_options& options = bson_encode_options()) + { + using char_type = typename T::char_type; + bson_stream_encoder encoder(os, options); + auto adaptor = make_json_visitor_adaptor>(encoder); + j.dump(adaptor); + } + + template + typename std::enable_if::value,void>::type + encode_bson(const T& val, + std::ostream& os, + const bson_encode_options& options = bson_encode_options()) + { + bson_stream_encoder encoder(os, options); + std::error_code ec; + encode_traits::encode(val, encoder, json(), ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec)); + } + } + + // with temp_allocator_rag + + template + typename std::enable_if::value && + type_traits::is_back_insertable_byte_container::value,void>::type + encode_bson(temp_allocator_arg_t, const TempAllocator& temp_alloc, + const T& j, + Container& v, + const bson_encode_options& options = bson_encode_options()) + { + using char_type = typename T::char_type; + basic_bson_encoder,TempAllocator> encoder(v, options, temp_alloc); + auto adaptor = make_json_visitor_adaptor>(encoder); + j.dump(adaptor); + } + + template + typename std::enable_if::value && + type_traits::is_back_insertable_byte_container::value,void>::type + encode_bson(temp_allocator_arg_t, const TempAllocator& temp_alloc, + const T& val, + Container& v, + const bson_encode_options& options = bson_encode_options()) + { + basic_bson_encoder,TempAllocator> encoder(v, options, temp_alloc); + std::error_code ec; + encode_traits::encode(val, encoder, json(), ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec)); + } + } + + template + typename std::enable_if::value,void>::type + encode_bson(temp_allocator_arg_t, const TempAllocator& temp_alloc, + const T& j, + std::ostream& os, + const bson_encode_options& options = bson_encode_options()) + { + using char_type = typename T::char_type; + basic_bson_encoder encoder(os, options, temp_alloc); + auto adaptor = make_json_visitor_adaptor>(encoder); + j.dump(adaptor); + } + + template + typename std::enable_if::value,void>::type + encode_bson(temp_allocator_arg_t, const TempAllocator& temp_alloc, + const T& val, + std::ostream& os, + const bson_encode_options& options = bson_encode_options()) + { + basic_bson_encoder encoder(os, options, temp_alloc); + std::error_code ec; + encode_traits::encode(val, encoder, json(), ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec)); + } + } + +} // bson +} // jsoncons + +#endif diff --git a/include/jsoncons_ext/cbor/cbor.hpp b/include/jsoncons_ext/cbor/cbor.hpp new file mode 100644 index 0000000..3f7329f --- /dev/null +++ b/include/jsoncons_ext/cbor/cbor.hpp @@ -0,0 +1,26 @@ +// Copyright 2017 Daniel Parkerstd +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + + +#ifndef JSONCONS_CBOR_CBOR_HPP +#define JSONCONS_CBOR_CBOR_HPP + +#include +#include +#include +#include // std::enable_if +#include // std::basic_istream +#include +#include +#include +#include +#include +#include +#include +#include + +#endif + diff --git a/include/jsoncons_ext/cbor/cbor_cursor.hpp b/include/jsoncons_ext/cbor/cbor_cursor.hpp new file mode 100644 index 0000000..af0d1a8 --- /dev/null +++ b/include/jsoncons_ext/cbor/cbor_cursor.hpp @@ -0,0 +1,351 @@ +// Copyright 2018 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_CBOR_CBOR_CURSOR_HPP +#define JSONCONS_CBOR_CBOR_CURSOR_HPP + +#include // std::allocator +#include +#include +#include +#include +#include +#include // std::basic_istream +#include +#include +#include +#include +#include +#include +#include + +namespace jsoncons { +namespace cbor { + +template> +class basic_cbor_cursor : public basic_staj_cursor, private virtual ser_context +{ +public: + using source_type = Source; + using char_type = char; + using allocator_type = Allocator; +private: + basic_cbor_parser parser_; + basic_staj_visitor cursor_visitor_; + basic_json_visitor2_to_visitor_adaptor cursor_handler_adaptor_; + bool eof_; + + // Noncopyable and nonmoveable + basic_cbor_cursor(const basic_cbor_cursor&) = delete; + basic_cbor_cursor& operator=(const basic_cbor_cursor&) = delete; + +public: + using string_view_type = string_view; + + template + basic_cbor_cursor(Sourceable&& source, + const cbor_decode_options& options = cbor_decode_options(), + const Allocator& alloc = Allocator()) + : parser_(std::forward(source), options, alloc), + cursor_visitor_(accept_all), + cursor_handler_adaptor_(cursor_visitor_, alloc), + eof_(false) + { + if (!done()) + { + next(); + } + } + + // Constructors that set parse error codes + + template + basic_cbor_cursor(Sourceable&& source, + std::error_code& ec) + : basic_cbor_cursor(std::allocator_arg, Allocator(), + std::forward(source), + cbor_decode_options(), + ec) + { + } + + template + basic_cbor_cursor(Sourceable&& source, + const cbor_decode_options& options, + std::error_code& ec) + : basic_cbor_cursor(std::allocator_arg, Allocator(), + std::forward(source), + options, + ec) + { + } + + template + basic_cbor_cursor(std::allocator_arg_t, const Allocator& alloc, + Sourceable&& source, + const cbor_decode_options& options, + std::error_code& ec) + : parser_(std::forward(source), options, alloc), + cursor_visitor_(accept_all), + cursor_handler_adaptor_(cursor_visitor_, alloc), + eof_(false) + { + if (!done()) + { + next(ec); + } + } + + void reset() + { + parser_.reset(); + cursor_visitor_.reset(); + cursor_handler_adaptor_.reset(); + eof_ = false; + if (!done()) + { + next(); + } + } + + template + void reset(Sourceable&& source) + { + parser_.reset(std::forward(source)); + cursor_visitor_.reset(); + cursor_handler_adaptor_.reset(); + eof_ = false; + if (!done()) + { + next(); + } + } + + void reset(std::error_code& ec) + { + parser_.reset(); + cursor_visitor_.reset(); + cursor_handler_adaptor_.reset(); + eof_ = false; + if (!done()) + { + next(ec); + } + } + + template + void reset(Sourceable&& source, std::error_code& ec) + { + parser_.reset(std::forward(source)); + cursor_visitor_.reset(); + cursor_handler_adaptor_.reset(); + eof_ = false; + if (!done()) + { + next(ec); + } + } + + bool done() const override + { + return parser_.done(); + } + + bool is_typed_array() const + { + return cursor_visitor_.is_typed_array(); + } + + const staj_event& current() const override + { + return cursor_visitor_.event(); + } + + void read_to(basic_json_visitor& visitor) override + { + std::error_code ec; + read_to(visitor, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec,parser_.line(),parser_.column())); + } + } + + void read_to(basic_json_visitor& visitor, + std::error_code& ec) override + { + if (cursor_visitor_.dump(visitor, *this, ec)) + { + read_next(visitor, ec); + } + } + + void next() override + { + std::error_code ec; + next(ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec,parser_.line(),parser_.column())); + } + } + + void next(std::error_code& ec) override + { + read_next(ec); + } + + const ser_context& context() const override + { + return *this; + } + + bool eof() const + { + return eof_; + } + + std::size_t line() const override + { + return parser_.line(); + } + + std::size_t column() const override + { + return parser_.column(); + } + + friend + staj_filter_view operator|(basic_cbor_cursor& cursor, + std::function pred) + { + return staj_filter_view(cursor, pred); + } + +#if !defined(JSONCONS_NO_DEPRECATED) + + template + JSONCONS_DEPRECATED_MSG("Instead, use pipe syntax for filter") + basic_cbor_cursor(Sourceable&& source, + std::function filter, + const cbor_decode_options& options = cbor_decode_options(), + const Allocator& alloc = Allocator()) + : parser_(std::forward(source), options, alloc), + cursor_visitor_(filter), + cursor_handler_adaptor_(cursor_visitor_, alloc), + eof_(false) + { + if (!done()) + { + next(); + } + } + + template + JSONCONS_DEPRECATED_MSG("Instead, use pipe syntax for filter") + basic_cbor_cursor(Sourceable&& source, + std::function filter, + std::error_code& ec) + : basic_cbor_cursor(std::allocator_arg, Allocator(), + std::forward(source), filter, ec) + { + } + + template + JSONCONS_DEPRECATED_MSG("Instead, use pipe syntax for filter") + basic_cbor_cursor(std::allocator_arg_t, const Allocator& alloc, + Sourceable&& source, + std::function filter, + std::error_code& ec) + : parser_(std::forward(source), alloc), + cursor_visitor_(filter), + cursor_handler_adaptor_(cursor_visitor_, alloc), + eof_(false) + { + if (!done()) + { + next(ec); + } + } + + JSONCONS_DEPRECATED_MSG("Instead, use read_to(basic_json_visitor&)") + void read(basic_json_visitor& visitor) + { + read_to(visitor); + } + + JSONCONS_DEPRECATED_MSG("Instead, use read_to(basic_json_visitor&, std::error_code&)") + void read(basic_json_visitor& visitor, + std::error_code& ec) + { + read_to(visitor, ec); + } +#endif +private: + static bool accept_all(const staj_event&, const ser_context&) + { + return true; + } + + void read_next(std::error_code& ec) + { + if (cursor_visitor_.in_available()) + { + cursor_visitor_.send_available(ec); + } + else + { + parser_.restart(); + while (!parser_.stopped()) + { + parser_.parse(cursor_handler_adaptor_, ec); + if (ec) return; + } + } + } + + void read_next(basic_json_visitor& visitor, std::error_code& ec) + { + { + struct resource_wrapper + { + basic_json_visitor2_to_visitor_adaptor& adaptor; + basic_json_visitor& original; + + resource_wrapper(basic_json_visitor2_to_visitor_adaptor& adaptor, + basic_json_visitor& visitor) + : adaptor(adaptor), original(adaptor.destination()) + { + adaptor.destination(visitor); + } + + ~resource_wrapper() + { + adaptor.destination(original); + } + } wrapper(cursor_handler_adaptor_, visitor); + + parser_.restart(); + while (!parser_.stopped()) + { + parser_.parse(cursor_handler_adaptor_, ec); + if (ec) + { + return; + } + } + } + } +}; + +using cbor_stream_cursor = basic_cbor_cursor; +using cbor_bytes_cursor = basic_cbor_cursor; + +} // namespace cbor +} // namespace jsoncons + +#endif + diff --git a/include/jsoncons_ext/cbor/cbor_cursor2.hpp b/include/jsoncons_ext/cbor/cbor_cursor2.hpp new file mode 100644 index 0000000..eee7445 --- /dev/null +++ b/include/jsoncons_ext/cbor/cbor_cursor2.hpp @@ -0,0 +1,265 @@ +// Copyright 2018 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_CBOR_CBOR_CURSOR2_HPP +#define JSONCONS_CBOR_CBOR_CURSOR2_HPP + +#include // std::allocator +#include +#include +#include +#include +#include +#include // std::basic_istream +#include +#include +#include +#include +#include +#include +#include + +namespace jsoncons { +namespace cbor { + + template> + class basic_cbor_cursor2 : public basic_staj2_cursor, private virtual ser_context + { + public: + using source_type = Source; + using char_type = char; + using allocator_type = Allocator; + private: + basic_cbor_parser parser_; + basic_staj2_visitor cursor_visitor_; + bool eof_; + + // Noncopyable and nonmoveable + basic_cbor_cursor2(const basic_cbor_cursor2&) = delete; + basic_cbor_cursor2& operator=(const basic_cbor_cursor2&) = delete; + + public: + using string_view_type = string_view; + + template + basic_cbor_cursor2(Sourceable&& source, + const cbor_decode_options& options = cbor_decode_options(), + const Allocator& alloc = Allocator()) + : parser_(std::forward(source), options, alloc), + cursor_visitor_(accept_all), + eof_(false) + { + if (!done()) + { + next(); + } + } + + // Constructors that set parse error codes + + template + basic_cbor_cursor2(Sourceable&& source, + std::error_code& ec) + : basic_cbor_cursor2(std::allocator_arg, Allocator(), + std::forward(source), + cbor_decode_options(), + ec) + { + } + + template + basic_cbor_cursor2(Sourceable&& source, + const cbor_decode_options& options, + std::error_code& ec) + : basic_cbor_cursor2(std::allocator_arg, Allocator(), + std::forward(source), + options, + ec) + { + } + + template + basic_cbor_cursor2(std::allocator_arg_t, const Allocator& alloc, + Sourceable&& source, + const cbor_decode_options& options, + std::error_code& ec) + : parser_(std::forward(source), options, alloc), + cursor_visitor_(accept_all), + eof_(false) + { + if (!done()) + { + next(ec); + } + } + + void reset() + { + parser_.reset(); + cursor_visitor_.reset(); + eof_ = false; + if (!done()) + { + next(); + } + } + + template + void reset(Sourceable&& source) + { + parser_.reset(std::forward(source)); + cursor_visitor_.reset(); + eof_ = false; + if (!done()) + { + next(); + } + } + + void reset(std::error_code& ec) + { + parser_.reset(); + cursor_visitor_.reset(); + eof_ = false; + if (!done()) + { + next(ec); + } + } + + template + void reset(Sourceable&& source, std::error_code& ec) + { + parser_.reset(std::forward(source)); + cursor_visitor_.reset(); + eof_ = false; + if (!done()) + { + next(ec); + } + } + + bool done() const override + { + return parser_.done(); + } + + bool is_typed_array() const + { + return cursor_visitor_.is_typed_array(); + } + + const staj2_event& current() const override + { + return cursor_visitor_.event(); + } + + void read_to(basic_json_visitor2& visitor) override + { + std::error_code ec; + read_to(visitor, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec,parser_.line(),parser_.column())); + } + } + + void read_to(basic_json_visitor2& visitor, + std::error_code& ec) override + { + if (cursor_visitor_.dump(visitor, *this, ec)) + { + read_next(visitor, ec); + } + } + + void next() override + { + std::error_code ec; + next(ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec,parser_.line(),parser_.column())); + } + } + + void next(std::error_code& ec) override + { + read_next(ec); + } + + const ser_context& context() const override + { + return *this; + } + + bool eof() const + { + return eof_; + } + + std::size_t line() const override + { + return parser_.line(); + } + + std::size_t column() const override + { + return parser_.column(); + } + + friend + staj2_filter_view operator|(basic_cbor_cursor2& cursor, + std::function pred) + { + return staj2_filter_view(cursor, pred); + } + + private: + static bool accept_all(const staj2_event&, const ser_context&) + { + return true; + } + + void read_next(std::error_code& ec) + { + if (cursor_visitor_.in_available()) + { + cursor_visitor_.send_available(ec); + } + else + { + parser_.restart(); + while (!parser_.stopped()) + { + parser_.parse(cursor_visitor_, ec); + if (ec) return; + } + } + } + + void read_next(basic_json_visitor2& visitor, std::error_code& ec) + { + parser_.restart(); + while (!parser_.stopped()) + { + parser_.parse(visitor, ec); + if (ec) + { + return; + } + } + } + }; + + using cbor_stream_cursor2 = basic_cbor_cursor2; + using cbor_bytes_cursor2 = basic_cbor_cursor2; + +} // namespace cbor +} // namespace jsoncons + +#endif + diff --git a/include/jsoncons_ext/cbor/cbor_detail.hpp b/include/jsoncons_ext/cbor/cbor_detail.hpp new file mode 100644 index 0000000..9acfc3c --- /dev/null +++ b/include/jsoncons_ext/cbor/cbor_detail.hpp @@ -0,0 +1,93 @@ +// Copyright 2017 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_CBOR_CBOR_DETAIL_HPP +#define JSONCONS_CBOR_CBOR_DETAIL_HPP + +#include +#include +#include +#include // std::forward_iterator_tag +#include // std::numeric_limits +#include // std::move +#include +#include +#include + +// 0x00..0x17 (0..23) +#define JSONCONS_CBOR_0x00_0x17 \ + 0x00:case 0x01:case 0x02:case 0x03:case 0x04:case 0x05:case 0x06:case 0x07:case 0x08:case 0x09:case 0x0a:case 0x0b:case 0x0c:case 0x0d:case 0x0e:case 0x0f:case 0x10:case 0x11:case 0x12:case 0x13:case 0x14:case 0x15:case 0x16:case 0x17 + +#define JSONCONS_CBOR_ARRAY_TAGS \ + 0x40:case 0x41:case 0x42:case 0x43:case 0x44:case 0x45:case 0x46:case 0x47:case 0x48:case 0x49:case 0x4a:case 0x4b:case 0x4c:case 0x4d:case 0x4e:case 0x4f:case 0x50:case 0x51:case 0x52:case 0x53:case 0x54:case 0x55:case 0x56:case 0x57 + +namespace jsoncons { namespace cbor { namespace detail { + +//const uint8_t cbor_array_tags_010_mask = 0b11100000; +//const uint8_t cbor_array_tags_f_mask = 0b00010000; +//const uint8_t cbor_array_tags_s_mask = 0b00001000; +//const uint8_t cbor_array_tags_e_mask = 0b00000100; +//const uint8_t cbor_array_tags_ll_mask = 0b00000011; + +const uint8_t cbor_array_tags_010_mask = 0xE0; +const uint8_t cbor_array_tags_f_mask = 0x10; +const uint8_t cbor_array_tags_s_mask = 0x08; +const uint8_t cbor_array_tags_e_mask = 0x04; +const uint8_t cbor_array_tags_ll_mask = 0x03; + +const uint8_t cbor_array_tags_010_shift = 5; +const uint8_t cbor_array_tags_f_shift = 4; +const uint8_t cbor_array_tags_s_shift = 3; +const uint8_t cbor_array_tags_e_shift = 2; +const uint8_t cbor_array_tags_ll_shift = 0; + +enum class cbor_major_type : uint8_t +{ + unsigned_integer = 0x00, + negative_integer = 0x01, + byte_string = 0x02, + text_string = 0x03, + array = 0x04, + map = 0x05, + semantic_tag = 0x06, + simple = 0x7 +}; + +namespace additional_info +{ + const uint8_t indefinite_length = 0x1f; +} + +inline +size_t min_length_for_stringref(uint64_t index) +{ + std::size_t n; + if (index <= 23) + { + n = 3; + } + else if (index <= 255) + { + n = 4; + } + else if (index <= 65535) + { + n = 5; + } + else if (index <= 4294967295) + { + n = 7; + } + else + { + n = 11; + } + return n; +} + +}}} + +#endif diff --git a/include/jsoncons_ext/cbor/cbor_encoder.hpp b/include/jsoncons_ext/cbor/cbor_encoder.hpp new file mode 100644 index 0000000..f4699ee --- /dev/null +++ b/include/jsoncons_ext/cbor/cbor_encoder.hpp @@ -0,0 +1,1766 @@ +// Copyright 2018 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_CBOR_CBOR_ENCODER_HPP +#define JSONCONS_CBOR_CBOR_ENCODER_HPP + +#include +#include +#include // std::numeric_limits +#include +#include // std::move +#include // jsoncons::ser_error +#include +#include +#include +#include +#include +#include + +namespace jsoncons { namespace cbor { + +enum class cbor_container_type {object, indefinite_length_object, array, indefinite_length_array}; + +template> +class basic_cbor_encoder final : public basic_json_visitor +{ + using super_type = basic_json_visitor; + + enum class decimal_parse_state { start, integer, exp1, exp2, fraction1 }; + enum class hexfloat_parse_state { start, expect_0, expect_x, integer, exp1, exp2, fraction1 }; + + static constexpr int64_t nanos_in_second = 1000000000; + static constexpr int64_t millis_in_second = 1000; + +public: + using allocator_type = Allocator; + using sink_type = Sink; + using typename super_type::char_type; + using typename super_type::string_view_type; + +private: + using char_allocator_type = typename std::allocator_traits:: template rebind_alloc; + using byte_allocator_type = typename std::allocator_traits:: template rebind_alloc; + + using string_type = std::basic_string,char_allocator_type>; + using byte_string_type = basic_byte_string; + + struct stack_item + { + cbor_container_type type_; + std::size_t length_; + std::size_t count_; + + stack_item(cbor_container_type type, std::size_t length = 0) noexcept + : type_(type), length_(length), count_(0) + { + } + + std::size_t length() const + { + return length_; + } + + std::size_t count() const + { + return count_; + } + + bool is_object() const + { + return type_ == cbor_container_type::object || type_ == cbor_container_type::indefinite_length_object; + } + + bool is_indefinite_length() const + { + return type_ == cbor_container_type::indefinite_length_array || type_ == cbor_container_type::indefinite_length_object; + } + + }; + + typedef typename std::allocator_traits:: template rebind_alloc> string_size_allocator_type; + typedef typename std::allocator_traits:: template rebind_alloc> byte_string_size_allocator_type; + typedef typename std::allocator_traits:: template rebind_alloc stack_item_allocator_type; + + Sink sink_; + const cbor_encode_options options_; + allocator_type alloc_; + + std::vector stack_; + std::map,string_size_allocator_type> stringref_map_; + std::map,byte_string_size_allocator_type> bytestringref_map_; + std::size_t next_stringref_ = 0; + int nesting_depth_; + + // Noncopyable and nonmoveable + basic_cbor_encoder(const basic_cbor_encoder&) = delete; + basic_cbor_encoder& operator=(const basic_cbor_encoder&) = delete; +public: + explicit basic_cbor_encoder(Sink&& sink, + const Allocator& alloc = Allocator()) + : basic_cbor_encoder(std::forward(sink), cbor_encode_options(), alloc) + { + } + basic_cbor_encoder(Sink&& sink, + const cbor_encode_options& options, + const Allocator& alloc = Allocator()) + : sink_(std::forward(sink)), + options_(options), + alloc_(alloc), + stack_(alloc), +#if !defined(JSONCONS_NO_MAP_CONS_TAKES_ALLOCATOR) + stringref_map_(alloc), + bytestringref_map_(alloc), +#endif + nesting_depth_(0) + { + if (options.pack_strings()) + { + write_tag(256); + } + } + + ~basic_cbor_encoder() noexcept + { + JSONCONS_TRY + { + sink_.flush(); + } + JSONCONS_CATCH(...) + { + } + } + + void reset() + { + stack_.clear(); + stringref_map_.clear(); + bytestringref_map_.clear(); + next_stringref_ = 0; + nesting_depth_ = 0; + } + + void reset(Sink&& sink) + { + sink_ = std::move(sink); + reset(); + } + +private: + // Implementing methods + + void visit_flush() override + { + sink_.flush(); + } + + bool visit_begin_object(semantic_tag, const ser_context&, std::error_code& ec) override + { + if (JSONCONS_UNLIKELY(++nesting_depth_ > options_.max_nesting_depth())) + { + ec = cbor_errc::max_nesting_depth_exceeded; + return false; + } + stack_.emplace_back(cbor_container_type::indefinite_length_object); + + sink_.push_back(0xbf); + return true; + } + + bool visit_begin_object(std::size_t length, semantic_tag, const ser_context&, std::error_code& ec) override + { + if (JSONCONS_UNLIKELY(++nesting_depth_ > options_.max_nesting_depth())) + { + ec = cbor_errc::max_nesting_depth_exceeded; + return false; + } + stack_.emplace_back(cbor_container_type::object, length); + + if (length <= 0x17) + { + binary::native_to_big(static_cast(0xa0 + length), + std::back_inserter(sink_)); + } + else if (length <= 0xff) + { + binary::native_to_big(static_cast(0xb8), + std::back_inserter(sink_)); + binary::native_to_big(static_cast(length), + std::back_inserter(sink_)); + } + else if (length <= 0xffff) + { + binary::native_to_big(static_cast(0xb9), + std::back_inserter(sink_)); + binary::native_to_big(static_cast(length), + std::back_inserter(sink_)); + } + else if (length <= 0xffffffff) + { + binary::native_to_big(static_cast(0xba), + std::back_inserter(sink_)); + binary::native_to_big(static_cast(length), + std::back_inserter(sink_)); + } + else if (length <= 0xffffffffffffffff) + { + binary::native_to_big(static_cast(0xbb), + std::back_inserter(sink_)); + binary::native_to_big(static_cast(length), + std::back_inserter(sink_)); + } + + return true; + } + + bool visit_end_object(const ser_context&, std::error_code& ec) override + { + JSONCONS_ASSERT(!stack_.empty()); + --nesting_depth_; + + if (stack_.back().is_indefinite_length()) + { + sink_.push_back(0xff); + } + else + { + if (stack_.back().count() < stack_.back().length()) + { + ec = cbor_errc::too_few_items; + return false; + } + if (stack_.back().count() > stack_.back().length()) + { + ec = cbor_errc::too_many_items; + return false; + } + } + + stack_.pop_back(); + end_value(); + + return true; + } + + bool visit_begin_array(semantic_tag, const ser_context&, std::error_code& ec) override + { + if (JSONCONS_UNLIKELY(++nesting_depth_ > options_.max_nesting_depth())) + { + ec = cbor_errc::max_nesting_depth_exceeded; + return false; + } + stack_.emplace_back(cbor_container_type::indefinite_length_array); + sink_.push_back(0x9f); + return true; + } + + bool visit_begin_array(std::size_t length, semantic_tag, const ser_context&, std::error_code& ec) override + { + if (JSONCONS_UNLIKELY(++nesting_depth_ > options_.max_nesting_depth())) + { + ec = cbor_errc::max_nesting_depth_exceeded; + return false; + } + stack_.emplace_back(cbor_container_type::array, length); + if (length <= 0x17) + { + binary::native_to_big(static_cast(0x80 + length), + std::back_inserter(sink_)); + } + else if (length <= 0xff) + { + binary::native_to_big(static_cast(0x98), + std::back_inserter(sink_)); + binary::native_to_big(static_cast(length), + std::back_inserter(sink_)); + } + else if (length <= 0xffff) + { + binary::native_to_big(static_cast(0x99), + std::back_inserter(sink_)); + binary::native_to_big(static_cast(length), + std::back_inserter(sink_)); + } + else if (length <= 0xffffffff) + { + binary::native_to_big(static_cast(0x9a), + std::back_inserter(sink_)); + binary::native_to_big(static_cast(length), + std::back_inserter(sink_)); + } + else if (length <= 0xffffffffffffffff) + { + binary::native_to_big(static_cast(0x9b), + std::back_inserter(sink_)); + binary::native_to_big(static_cast(length), + std::back_inserter(sink_)); + } + return true; + } + + bool visit_end_array(const ser_context&, std::error_code& ec) override + { + JSONCONS_ASSERT(!stack_.empty()); + --nesting_depth_; + + if (stack_.back().is_indefinite_length()) + { + sink_.push_back(0xff); + } + else + { + if (stack_.back().count() < stack_.back().length()) + { + ec = cbor_errc::too_few_items; + return false; + } + if (stack_.back().count() > stack_.back().length()) + { + ec = cbor_errc::too_many_items; + return false; + } + } + + stack_.pop_back(); + end_value(); + + return true; + } + + bool visit_key(const string_view_type& name, const ser_context&, std::error_code&) override + { + write_string(name); + return true; + } + + bool visit_null(semantic_tag tag, const ser_context&, std::error_code&) override + { + if (tag == semantic_tag::undefined) + { + sink_.push_back(0xf7); + } + else + { + sink_.push_back(0xf6); + } + + end_value(); + return true; + } + + void write_string(const string_view& sv) + { + auto sink = unicode_traits::validate(sv.data(), sv.size()); + if (sink.ec != unicode_traits::conv_errc()) + { + JSONCONS_THROW(ser_error(cbor_errc::invalid_utf8_text_string)); + } + + if (options_.pack_strings() && sv.size() >= jsoncons::cbor::detail::min_length_for_stringref(next_stringref_)) + { + string_type s(sv.data(), sv.size(), alloc_); + auto it = stringref_map_.find(s); + if (it == stringref_map_.end()) + { + stringref_map_.emplace(std::make_pair(std::move(s), next_stringref_++)); + write_utf8_string(sv); + } + else + { + write_tag(25); + write_uint64_value(it->second); + } + } + else + { + write_utf8_string(sv); + } + } + + void write_utf8_string(const string_view& sv) + { + const size_t length = sv.size(); + + if (length <= 0x17) + { + // fixstr stores a byte array whose length is upto 31 bytes + binary::native_to_big(static_cast(0x60 + length), + std::back_inserter(sink_)); + } + else if (length <= 0xff) + { + binary::native_to_big(static_cast(0x78), + std::back_inserter(sink_)); + binary::native_to_big(static_cast(length), + std::back_inserter(sink_)); + } + else if (length <= 0xffff) + { + binary::native_to_big(static_cast(0x79), + std::back_inserter(sink_)); + binary::native_to_big(static_cast(length), + std::back_inserter(sink_)); + } + else if (length <= 0xffffffff) + { + binary::native_to_big(static_cast(0x7a), + std::back_inserter(sink_)); + binary::native_to_big(static_cast(length), + std::back_inserter(sink_)); + } + else if (length <= 0xffffffffffffffff) + { + binary::native_to_big(static_cast(0x7b), + std::back_inserter(sink_)); + binary::native_to_big(static_cast(length), + std::back_inserter(sink_)); + } + + for (auto c : sv) + { + sink_.push_back(c); + } + } + + void write_bignum(bigint& n) + { + bool is_neg = n < 0; + if (is_neg) + { + n = - n -1; + } + + int signum; + std::vector data; + n.write_bytes_be(signum, data); + std::size_t length = data.size(); + + if (is_neg) + { + write_tag(3); + } + else + { + write_tag(2); + } + + if (length <= 0x17) + { + // fixstr stores a byte array whose length is upto 31 bytes + binary::native_to_big(static_cast(0x40 + length), + std::back_inserter(sink_)); + } + else if (length <= 0xff) + { + binary::native_to_big(static_cast(0x58), + std::back_inserter(sink_)); + binary::native_to_big(static_cast(length), + std::back_inserter(sink_)); + } + else if (length <= 0xffff) + { + binary::native_to_big(static_cast(0x59), + std::back_inserter(sink_)); + binary::native_to_big(static_cast(length), + std::back_inserter(sink_)); + } + else if (length <= 0xffffffff) + { + binary::native_to_big(static_cast(0x5a), + std::back_inserter(sink_)); + binary::native_to_big(static_cast(length), + std::back_inserter(sink_)); + } + else if (length <= 0xffffffffffffffff) + { + binary::native_to_big(static_cast(0x5b), + std::back_inserter(sink_)); + binary::native_to_big(static_cast(length), + std::back_inserter(sink_)); + } + + for (auto c : data) + { + sink_.push_back(c); + } + } + + bool write_decimal_value(const string_view_type& sv, const ser_context& context, std::error_code& ec) + { + bool more = true; + + decimal_parse_state state = decimal_parse_state::start; + std::basic_string s; + std::basic_string exponent; + int64_t scale = 0; + for (auto c : sv) + { + switch (state) + { + case decimal_parse_state::start: + { + switch (c) + { + case '-': + s.push_back(c); + state = decimal_parse_state::integer; + break; + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': + s.push_back(c); + state = decimal_parse_state::integer; + break; + default: + { + ec = cbor_errc::invalid_decimal_fraction; + return false; + } + } + break; + } + case decimal_parse_state::integer: + { + switch (c) + { + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': + s.push_back(c); + break; + case 'e': case 'E': + state = decimal_parse_state::exp1; + break; + case '.': + state = decimal_parse_state::fraction1; + break; + default: + { + ec = cbor_errc::invalid_decimal_fraction; + return false; + } + } + break; + } + case decimal_parse_state::exp1: + { + switch (c) + { + case '+': + state = decimal_parse_state::exp2; + break; + case '-': + exponent.push_back(c); + state = decimal_parse_state::exp2; + break; + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': + exponent.push_back(c); + state = decimal_parse_state::exp2; + break; + default: + { + ec = cbor_errc::invalid_decimal_fraction; + return false; + } + } + break; + } + case decimal_parse_state::exp2: + { + switch (c) + { + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': + exponent.push_back(c); + break; + default: + { + ec = cbor_errc::invalid_decimal_fraction; + return false; + } + } + break; + } + case decimal_parse_state::fraction1: + { + switch (c) + { + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': + s.push_back(c); + --scale; + break; + default: + { + ec = cbor_errc::invalid_decimal_fraction; + return false; + } + } + break; + } + } + } + + write_tag(4); + more = visit_begin_array((std::size_t)2, semantic_tag::none, context, ec); + if (!more) {return more;} + if (exponent.length() > 0) + { + int64_t val; + auto r = jsoncons::detail::to_integer(exponent.data(), exponent.length(), val); + if (!r) + { + ec = r.error_code(); + return false; + } + scale += val; + } + more = visit_int64(scale, semantic_tag::none, context, ec); + if (!more) {return more;} + + int64_t val{ 0 }; + auto r = jsoncons::detail::to_integer(s.data(),s.length(), val); + if (r) + { + more = visit_int64(val, semantic_tag::none, context, ec); + if (!more) {return more;} + } + else if (r.error_code() == jsoncons::detail::to_integer_errc::overflow) + { + bigint n = bigint::from_string(s.data(), s.length()); + write_bignum(n); + end_value(); + } + else + { + ec = r.error_code(); + return false; + } + more = visit_end_array(context, ec); + + return more; + } + + bool write_hexfloat_value(const string_view_type& sv, const ser_context& context, std::error_code& ec) + { + bool more = true; + + hexfloat_parse_state state = hexfloat_parse_state::start; + std::basic_string s; + std::basic_string exponent; + int64_t scale = 0; + + for (auto c : sv) + { + switch (state) + { + case hexfloat_parse_state::start: + { + switch (c) + { + case '-': + s.push_back(c); + state = hexfloat_parse_state::expect_0; + break; + case '0': + state = hexfloat_parse_state::expect_x; + break; + default: + { + ec = cbor_errc::invalid_bigfloat; + return false; + } + } + break; + } + case hexfloat_parse_state::expect_0: + { + switch (c) + { + case '0': + state = hexfloat_parse_state::expect_x; + break; + default: + { + ec = cbor_errc::invalid_bigfloat; + return false; + } + } + break; + } + case hexfloat_parse_state::expect_x: + { + switch (c) + { + case 'x': + case 'X': + state = hexfloat_parse_state::integer; + break; + default: + { + ec = cbor_errc::invalid_bigfloat; + return false; + } + } + break; + } + case hexfloat_parse_state::integer: + { + switch (c) + { + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9':case 'a':case 'b':case 'c':case 'd':case 'e':case 'f':case 'A':case 'B':case 'C':case 'D':case 'E':case 'F': + s.push_back(c); + break; + case 'p': case 'P': + state = hexfloat_parse_state::exp1; + break; + case '.': + state = hexfloat_parse_state::fraction1; + break; + default: + { + ec = cbor_errc::invalid_bigfloat; + return false; + } + } + break; + } + case hexfloat_parse_state::exp1: + { + switch (c) + { + case '+': + state = hexfloat_parse_state::exp2; + break; + case '-': + exponent.push_back(c); + state = hexfloat_parse_state::exp2; + break; + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9':case 'a':case 'b':case 'c':case 'd':case 'e':case 'f':case 'A':case 'B':case 'C':case 'D':case 'E':case 'F': + exponent.push_back(c); + state = hexfloat_parse_state::exp2; + break; + default: + { + ec = cbor_errc::invalid_bigfloat; + return false; + } + } + break; + } + case hexfloat_parse_state::exp2: + { + switch (c) + { + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9':case 'a':case 'b':case 'c':case 'd':case 'e':case 'f':case 'A':case 'B':case 'C':case 'D':case 'E':case 'F': + exponent.push_back(c); + break; + default: + { + ec = cbor_errc::invalid_bigfloat; + return false; + } + } + break; + } + case hexfloat_parse_state::fraction1: + { + switch (c) + { + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9':case 'a':case 'b':case 'c':case 'd':case 'e':case 'f':case 'A':case 'B':case 'C':case 'D':case 'E':case 'F': + s.push_back(c); + scale -= 4; + break; + default: + { + ec = cbor_errc::invalid_bigfloat; + return false; + } + } + break; + } + } + } + + write_tag(5); + more = visit_begin_array((std::size_t)2, semantic_tag::none, context, ec); + if (!more) return more; + + if (exponent.length() > 0) + { + int64_t val{ 0 }; + auto r = jsoncons::detail::base16_to_integer(exponent.data(), exponent.length(), val); + if (!r) + { + ec = r.error_code(); + return false; + } + scale += val; + } + more = visit_int64(scale, semantic_tag::none, context, ec); + if (!more) return more; + + int64_t val{ 0 }; + auto r = jsoncons::detail::base16_to_integer(s.data(),s.length(), val); + if (r) + { + more = visit_int64(val, semantic_tag::none, context, ec); + if (!more) return more; + } + else if (r.error_code() == jsoncons::detail::to_integer_errc::overflow) + { + bigint n = bigint::from_string_radix(s.data(), s.length(), 16); + write_bignum(n); + end_value(); + } + else + { + JSONCONS_THROW(json_runtime_error(r.error_code().message())); + } + return visit_end_array(context, ec); + } + + bool visit_string(const string_view_type& sv, semantic_tag tag, const ser_context& context, std::error_code& ec) override + { + switch (tag) + { + case semantic_tag::bigint: + { + bigint n = bigint::from_string(sv.data(), sv.length()); + write_bignum(n); + end_value(); + break; + } + case semantic_tag::bigdec: + { + return write_decimal_value(sv, context, ec); + } + case semantic_tag::bigfloat: + { + return write_hexfloat_value(sv, context, ec); + } + case semantic_tag::datetime: + { + write_tag(0); + + write_string(sv); + end_value(); + break; + } + case semantic_tag::uri: + { + write_tag(32); + write_string(sv); + end_value(); + break; + } + case semantic_tag::base64url: + { + write_tag(33); + write_string(sv); + end_value(); + break; + } + case semantic_tag::base64: + { + write_tag(34); + write_string(sv); + end_value(); + break; + } + default: + { + write_string(sv); + end_value(); + break; + } + } + return true; + } + + bool visit_byte_string(const byte_string_view& b, + semantic_tag tag, + const ser_context&, + std::error_code&) override + { + byte_string_chars_format encoding_hint; + switch (tag) + { + case semantic_tag::base16: + encoding_hint = byte_string_chars_format::base16; + break; + case semantic_tag::base64: + encoding_hint = byte_string_chars_format::base64; + break; + case semantic_tag::base64url: + encoding_hint = byte_string_chars_format::base64url; + break; + default: + encoding_hint = byte_string_chars_format::none; + break; + } + switch (encoding_hint) + { + case byte_string_chars_format::base64url: + write_tag(21); + break; + case byte_string_chars_format::base64: + write_tag(22); + break; + case byte_string_chars_format::base16: + write_tag(23); + break; + default: + break; + } + if (options_.pack_strings() && b.size() >= jsoncons::cbor::detail::min_length_for_stringref(next_stringref_)) + { + byte_string_type bs(b.data(), b.size(), alloc_); + auto it = bytestringref_map_.find(bs); + if (it == bytestringref_map_.end()) + { + bytestringref_map_.emplace(std::make_pair(bs, next_stringref_++)); + write_byte_string_value(bs); + } + else + { + write_tag(25); + write_uint64_value(it->second); + } + } + else + { + write_byte_string_value(b); + } + + end_value(); + return true; + } + + bool visit_byte_string(const byte_string_view& b, + uint64_t ext_tag, + const ser_context&, + std::error_code&) override + { + if (options_.pack_strings() && b.size() >= jsoncons::cbor::detail::min_length_for_stringref(next_stringref_)) + { + byte_string_type bs(b.data(), b.size(), alloc_); + auto it = bytestringref_map_.find(bs); + if (it == bytestringref_map_.end()) + { + bytestringref_map_.emplace(std::make_pair(bs, next_stringref_++)); + write_tag(ext_tag); + write_byte_string_value(bs); + } + else + { + write_tag(25); + write_uint64_value(it->second); + } + } + else + { + write_tag(ext_tag); + write_byte_string_value(b); + } + + end_value(); + return true; + } + + void write_byte_string_value(const byte_string_view& b) + { + if (b.size() <= 0x17) + { + // fixstr stores a byte array whose length is upto 31 bytes + binary::native_to_big(static_cast(0x40 + b.size()), + std::back_inserter(sink_)); + } + else if (b.size() <= 0xff) + { + binary::native_to_big(static_cast(0x58), + std::back_inserter(sink_)); + binary::native_to_big(static_cast(b.size()), + std::back_inserter(sink_)); + } + else if (b.size() <= 0xffff) + { + binary::native_to_big(static_cast(0x59), + std::back_inserter(sink_)); + binary::native_to_big(static_cast(b.size()), + std::back_inserter(sink_)); + } + else if (b.size() <= 0xffffffff) + { + binary::native_to_big(static_cast(0x5a), + std::back_inserter(sink_)); + binary::native_to_big(static_cast(b.size()), + std::back_inserter(sink_)); + } + else // if (b.size() <= 0xffffffffffffffff) + { + binary::native_to_big(static_cast(0x5b), + std::back_inserter(sink_)); + binary::native_to_big(static_cast(b.size()), + std::back_inserter(sink_)); + } + + for (auto c : b) + { + sink_.push_back(c); + } + } + + bool visit_double(double val, + semantic_tag tag, + const ser_context&, + std::error_code&) override + { + switch (tag) + { + case semantic_tag::epoch_second: + write_tag(1); + break; + case semantic_tag::epoch_milli: + write_tag(1); + if (val != 0) + { + val /= millis_in_second; + } + break; + case semantic_tag::epoch_nano: + write_tag(1); + if (val != 0) + { + val /= nanos_in_second; + } + break; + default: + break; + } + + float valf = (float)val; + if ((double)valf == val) + { + binary::native_to_big(static_cast(0xfa), + std::back_inserter(sink_)); + binary::native_to_big(valf, std::back_inserter(sink_)); + } + else + { + binary::native_to_big(static_cast(0xfb), + std::back_inserter(sink_)); + binary::native_to_big(val, std::back_inserter(sink_)); + } + + // write double + + end_value(); + return true; + } + + bool visit_int64(int64_t value, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + switch (tag) + { + case semantic_tag::epoch_milli: + case semantic_tag::epoch_nano: + return visit_double(static_cast(value), tag, context, ec); + case semantic_tag::epoch_second: + write_tag(1); + break; + default: + break; + } + if (value >= 0) + { + if (value <= 0x17) + { + binary::native_to_big(static_cast(value), + std::back_inserter(sink_)); + } + else if (value <= (std::numeric_limits::max)()) + { + binary::native_to_big(static_cast(0x18), + std::back_inserter(sink_)); + binary::native_to_big(static_cast(value), + std::back_inserter(sink_)); + } + else if (value <= (std::numeric_limits::max)()) + { + binary::native_to_big(static_cast(0x19), + std::back_inserter(sink_)); + binary::native_to_big(static_cast(value), + std::back_inserter(sink_)); + } + else if (value <= (std::numeric_limits::max)()) + { + binary::native_to_big(static_cast(0x1a), + std::back_inserter(sink_)); + binary::native_to_big(static_cast(value), + std::back_inserter(sink_)); + } + else if (value <= (std::numeric_limits::max)()) + { + binary::native_to_big(static_cast(0x1b), + std::back_inserter(sink_)); + binary::native_to_big(static_cast(value), + std::back_inserter(sink_)); + } + } else + { + const auto posnum = -1 - value; + if (value >= -24) + { + binary::native_to_big(static_cast(0x20 + posnum), + std::back_inserter(sink_)); + } + else if (posnum <= (std::numeric_limits::max)()) + { + binary::native_to_big(static_cast(0x38), + std::back_inserter(sink_)); + binary::native_to_big(static_cast(posnum), + std::back_inserter(sink_)); + } + else if (posnum <= (std::numeric_limits::max)()) + { + binary::native_to_big(static_cast(0x39), + std::back_inserter(sink_)); + binary::native_to_big(static_cast(posnum), + std::back_inserter(sink_)); + } + else if (posnum <= (std::numeric_limits::max)()) + { + binary::native_to_big(static_cast(0x3a), + std::back_inserter(sink_)); + binary::native_to_big(static_cast(posnum), + std::back_inserter(sink_)); + } + else if (posnum <= (std::numeric_limits::max)()) + { + binary::native_to_big(static_cast(0x3b), + std::back_inserter(sink_)); + binary::native_to_big(static_cast(posnum), + std::back_inserter(sink_)); + } + } + end_value(); + return true; + } + + bool visit_uint64(uint64_t value, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + switch (tag) + { + case semantic_tag::epoch_milli: + case semantic_tag::epoch_nano: + return visit_double(static_cast(value), tag, context, ec); + case semantic_tag::epoch_second: + write_tag(1); + break; + default: + break; + } + + write_uint64_value(value); + end_value(); + return true; + } + + void write_tag(uint64_t value) + { + if (value <= 0x17) + { + sink_.push_back(0xc0 | static_cast(value)); + } + else if (value <=(std::numeric_limits::max)()) + { + sink_.push_back(0xd8); + sink_.push_back(static_cast(value)); + } + else if (value <=(std::numeric_limits::max)()) + { + sink_.push_back(0xd9); + binary::native_to_big(static_cast(value), + std::back_inserter(sink_)); + } + else if (value <=(std::numeric_limits::max)()) + { + sink_.push_back(0xda); + binary::native_to_big(static_cast(value), + std::back_inserter(sink_)); + } + else + { + sink_.push_back(0xdb); + binary::native_to_big(static_cast(value), + std::back_inserter(sink_)); + } + } + + void write_uint64_value(uint64_t value) + { + if (value <= 0x17) + { + sink_.push_back(static_cast(value)); + } + else if (value <=(std::numeric_limits::max)()) + { + sink_.push_back(static_cast(0x18)); + sink_.push_back(static_cast(value)); + } + else if (value <=(std::numeric_limits::max)()) + { + sink_.push_back(static_cast(0x19)); + binary::native_to_big(static_cast(value), + std::back_inserter(sink_)); + } + else if (value <=(std::numeric_limits::max)()) + { + sink_.push_back(static_cast(0x1a)); + binary::native_to_big(static_cast(value), + std::back_inserter(sink_)); + } + else if (value <=(std::numeric_limits::max)()) + { + sink_.push_back(static_cast(0x1b)); + binary::native_to_big(static_cast(value), + std::back_inserter(sink_)); + } + } + + bool visit_bool(bool value, semantic_tag, const ser_context&, std::error_code&) override + { + if (value) + { + sink_.push_back(0xf5); + } + else + { + sink_.push_back(0xf4); + } + + end_value(); + return true; + } + + bool visit_typed_array(const jsoncons::span& v, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + if (options_.use_typed_arrays()) + { + switch (tag) + { + case semantic_tag::clamped: + write_tag(0x44); + break; + default: + write_tag(0x40); + break; + } + write_byte_string_value(byte_string_view(v)); + return true; + } + else + { + bool more = this->begin_array(v.size(), semantic_tag::none, context, ec); + for (auto p = v.begin(); more && p != v.end(); ++p) + { + more = this->uint64_value(*p, tag, context, ec); + } + if (more) + { + more = this->end_array(context, ec); + } + return more; + } + } + + bool visit_typed_array(const jsoncons::span& data, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + if (options_.use_typed_arrays()) + { + write_typed_array_tag(std::integral_constant(), + uint16_t(), + tag); + std::vector v(data.size()*sizeof(uint16_t)); + std::memcpy(v.data(),data.data(),data.size()*sizeof(uint16_t)); + write_byte_string_value(byte_string_view(v)); + return true; + } + else + { + bool more = this->begin_array(data.size(), semantic_tag::none, context, ec); + for (auto p = data.begin(); more && p != data.end(); ++p) + { + more = this->uint64_value(*p, tag, context, ec); + } + if (more) + { + more = this->end_array(context, ec); + } + return more; + } + } + + bool visit_typed_array(const jsoncons::span& data, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + if (options_.use_typed_arrays()) + { + write_typed_array_tag(std::integral_constant(), + uint32_t(), + tag); + std::vector v(data.size()*sizeof(uint32_t)); + std::memcpy(v.data(), data.data(), data.size()*sizeof(uint32_t)); + write_byte_string_value(byte_string_view(v)); + return true; + } + else + { + bool more = this->begin_array(data.size(), semantic_tag::none, context, ec); + for (auto p = data.begin(); more && p != data.end(); ++p) + { + more = this->uint64_value(*p, semantic_tag::none, context, ec); + } + if (more) + { + more = this->end_array(context, ec); + } + return more; + } + } + + bool visit_typed_array(const jsoncons::span& data, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + if (options_.use_typed_arrays()) + { + write_typed_array_tag(std::integral_constant(), + uint64_t(), + tag); + std::vector v(data.size()*sizeof(uint64_t)); + std::memcpy(v.data(), data.data(), data.size()*sizeof(uint64_t)); + write_byte_string_value(byte_string_view(v)); + return true; + } + else + { + bool more = this->begin_array(data.size(), semantic_tag::none, context, ec); + for (auto p = data.begin(); more && p != data.end(); ++p) + { + more = this->uint64_value(*p,semantic_tag::none,context, ec); + } + if (more) + { + more = this->end_array(context, ec); + } + return more; + } + } + + bool visit_typed_array(const jsoncons::span& data, + semantic_tag, + const ser_context& context, + std::error_code& ec) override + { + if (options_.use_typed_arrays()) + { + write_tag(0x48); + std::vector v(data.size()*sizeof(int8_t)); + std::memcpy(v.data(), data.data(), data.size()*sizeof(int8_t)); + write_byte_string_value(byte_string_view(v)); + return true; + } + else + { + bool more = this->begin_array(data.size(), semantic_tag::none,context, ec); + for (auto p = data.begin(); more && p != data.end(); ++p) + { + more = this->int64_value(*p,semantic_tag::none,context, ec); + } + if (more) + { + more = this->end_array(context, ec); + } + return more; + } + } + + bool visit_typed_array(const jsoncons::span& data, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + if (options_.use_typed_arrays()) + { + write_typed_array_tag(std::integral_constant(), + int16_t(), + tag); + std::vector v(data.size()*sizeof(int16_t)); + std::memcpy(v.data(), data.data(), data.size()*sizeof(int16_t)); + write_byte_string_value(byte_string_view(v)); + return true; + } + else + { + bool more = this->begin_array(data.size(), semantic_tag::none,context, ec); + for (auto p = data.begin(); more && p != data.end(); ++p) + { + more = this->int64_value(*p,semantic_tag::none,context, ec); + } + if (more) + { + more = this->end_array(context, ec); + } + return more; + } + } + + bool visit_typed_array(const jsoncons::span& data, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + if (options_.use_typed_arrays()) + { + write_typed_array_tag(std::integral_constant(), + int32_t(), + tag); + std::vector v(data.size()*sizeof(int32_t)); + std::memcpy(v.data(), data.data(), data.size()*sizeof(int32_t)); + write_byte_string_value(byte_string_view(v)); + return true; + } + else + { + bool more = this->begin_array(data.size(), semantic_tag::none,context, ec); + for (auto p = data.begin(); more && p != data.end(); ++p) + { + more = this->int64_value(*p,semantic_tag::none,context, ec); + } + if (more) + { + more = this->end_array(context, ec); + } + return more; + } + } + + bool visit_typed_array(const jsoncons::span& data, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + if (options_.use_typed_arrays()) + { + write_typed_array_tag(std::integral_constant(), + int64_t(), + tag); + std::vector v(data.size()*sizeof(int64_t)); + std::memcpy(v.data(), data.data(), data.size()*sizeof(int64_t)); + write_byte_string_value(byte_string_view(v)); + return true; + } + else + { + bool more = this->begin_array(data.size(), semantic_tag::none,context, ec); + for (auto p = data.begin(); more && p != data.end(); ++p) + { + more = this->int64_value(*p,semantic_tag::none,context, ec); + } + if (more) + { + more = this->end_array(context, ec); + } + return more; + } + } + + bool visit_typed_array(half_arg_t, const jsoncons::span& data, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + if (options_.use_typed_arrays()) + { + write_typed_array_tag(std::integral_constant(), + half_arg, + tag); + std::vector v(data.size()*sizeof(uint16_t)); + std::memcpy(v.data(),data.data(),data.size()*sizeof(uint16_t)); + write_byte_string_value(byte_string_view(v)); + return true; + } + else + { + bool more = this->begin_array(data.size(), semantic_tag::none, context, ec); + for (auto p = data.begin(); more && p != data.end(); ++p) + { + more = this->half_value(*p, tag, context, ec); + } + if (more) + { + more = this->end_array(context, ec); + } + return more; + } + } + + bool visit_typed_array(const jsoncons::span& data, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + if (options_.use_typed_arrays()) + { + write_typed_array_tag(std::integral_constant(), + float(), + tag); + std::vector v(data.size()*sizeof(float)); + std::memcpy(v.data(), data.data(), data.size()*sizeof(float)); + write_byte_string_value(byte_string_view(v)); + return true; + } + else + { + bool more = this->begin_array(data.size(), semantic_tag::none,context, ec); + for (auto p = data.begin(); more && p != data.end(); ++p) + { + more = this->double_value(*p,semantic_tag::none,context, ec); + } + if (more) + { + more = this->end_array(context, ec); + } + return more; + } + } + + bool visit_typed_array(const jsoncons::span& data, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + if (options_.use_typed_arrays()) + { + write_typed_array_tag(std::integral_constant(), + double(), + tag); + std::vector v(data.size()*sizeof(double)); + std::memcpy(v.data(), data.data(), data.size()*sizeof(double)); + write_byte_string_value(byte_string_view(v)); + return true; + } + else + { + bool more = this->begin_array(data.size(), semantic_tag::none,context, ec); + for (auto p = data.begin(); more && p != data.end(); ++p) + { + more = this->double_value(*p,semantic_tag::none,context, ec); + } + if (more) + { + more = this->end_array(context, ec); + } + return more; + } + } +/* + bool visit_typed_array(const jsoncons::span&, + semantic_tag, + const ser_context&, + std::error_code&) override + { + return true; + } +*/ + bool visit_begin_multi_dim(const jsoncons::span& shape, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + switch (tag) + { + case semantic_tag::multi_dim_column_major: + write_tag(1040); + break; + default: + write_tag(40); + break; + } + bool more = visit_begin_array(2, semantic_tag::none, context, ec); + if (more) + more = visit_begin_array(shape.size(), semantic_tag::none, context, ec); + for (auto it = shape.begin(); more && it != shape.end(); ++it) + { + more = visit_uint64(*it, semantic_tag::none, context, ec); + } + if (more) + { + more = visit_end_array(context, ec); + } + return more; + } + + bool visit_end_multi_dim(const ser_context& context, + std::error_code& ec) override + { + bool more = visit_end_array(context, ec); + return more; + } + + void write_typed_array_tag(std::true_type, + uint16_t, + semantic_tag) + { + write_tag(0x41); // big endian + } + void write_typed_array_tag(std::false_type, + uint16_t, + semantic_tag) + { + write_tag(0x45); + } + + void write_typed_array_tag(std::true_type, + uint32_t, + semantic_tag) + { + write_tag(0x42); // big endian + } + void write_typed_array_tag(std::false_type, + uint32_t, + semantic_tag) + { + write_tag(0x46); // little endian + } + + void write_typed_array_tag(std::true_type, + uint64_t, + semantic_tag) + { + write_tag(0x43); // big endian + } + void write_typed_array_tag(std::false_type, + uint64_t, + semantic_tag) + { + write_tag(0x47); // little endian + } + + void write_typed_array_tag(std::true_type, + int16_t, + semantic_tag) + { + write_tag(0x49); // big endian + } + void write_typed_array_tag(std::false_type, + int16_t, + semantic_tag) + { + write_tag(0x4d); // little endian + } + + void write_typed_array_tag(std::true_type, + int32_t, + semantic_tag) + { + write_tag(0x4a); // big endian + } + void write_typed_array_tag(std::false_type, + int32_t, + semantic_tag) + { + write_tag(0x4e); // little endian + } + + void write_typed_array_tag(std::true_type, + int64_t, + semantic_tag) + { + write_tag(0x4b); // big endian + } + void write_typed_array_tag(std::false_type, + int64_t, + semantic_tag) + { + write_tag(0x4f); // little endian + } + + void write_typed_array_tag(std::true_type, + half_arg_t, + semantic_tag) + { + write_tag(0x50); + } + void write_typed_array_tag(std::false_type, + half_arg_t, + semantic_tag) + { + write_tag(0x54); + } + + void write_typed_array_tag(std::true_type, + float, + semantic_tag) + { + write_tag(0x51); // big endian + } + void write_typed_array_tag(std::false_type, + float, + semantic_tag) + { + write_tag(0x55); // little endian + } + + void write_typed_array_tag(std::true_type, + double, + semantic_tag) + { + write_tag(0x52); // big endian + } + void write_typed_array_tag(std::false_type, + double, + semantic_tag) + { + write_tag(0x56); // little endian + } + + void end_value() + { + if (!stack_.empty()) + { + ++stack_.back().count_; + } + } +}; + +using cbor_stream_encoder = basic_cbor_encoder; +using cbor_bytes_encoder = basic_cbor_encoder>>; + +#if !defined(JSONCONS_NO_DEPRECATED) +JSONCONS_DEPRECATED_MSG("Instead, use cbor_bytes_encoder") typedef cbor_bytes_encoder cbor_bytes_serializer; + +template +using basic_cbor_serializer = basic_cbor_encoder; + +JSONCONS_DEPRECATED_MSG("Instead, use cbor_stream_encoder") typedef cbor_stream_encoder cbor_encoder; +JSONCONS_DEPRECATED_MSG("Instead, use cbor_stream_encoder") typedef cbor_stream_encoder cbor_serializer; +JSONCONS_DEPRECATED_MSG("Instead, use cbor_bytes_encoder") typedef cbor_bytes_encoder cbor_buffer_serializer; +#endif + +}} +#endif diff --git a/include/jsoncons_ext/cbor/cbor_error.hpp b/include/jsoncons_ext/cbor/cbor_error.hpp new file mode 100644 index 0000000..a7a6626 --- /dev/null +++ b/include/jsoncons_ext/cbor/cbor_error.hpp @@ -0,0 +1,105 @@ +/// Copyright 2018 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_CBOR_CBOR_ERROR_HPP +#define JSONCONS_CBOR_CBOR_ERROR_HPP + +#include +#include +#include // jsoncons::ser_error + +namespace jsoncons { namespace cbor { + +enum class cbor_errc +{ + success = 0, + unexpected_eof, + source_error, + invalid_decimal_fraction, + invalid_bigfloat, + invalid_utf8_text_string, + too_many_items, + too_few_items, + number_too_large, + stringref_too_large, + max_nesting_depth_exceeded, + unknown_type, + illegal_chunked_string +}; + +class cbor_error_category_impl + : public std::error_category +{ +public: + const char* name() const noexcept override + { + return "jsoncons/cbor"; + } + std::string message(int ev) const override + { + switch (static_cast(ev)) + { + case cbor_errc::unexpected_eof: + return "Unexpected end of file"; + case cbor_errc::source_error: + return "Source error"; + case cbor_errc::invalid_decimal_fraction: + return "Invalid decimal fraction"; + case cbor_errc::invalid_bigfloat: + return "Invalid bigfloat"; + case cbor_errc::invalid_utf8_text_string: + return "Illegal UTF-8 encoding in text string"; + case cbor_errc::too_many_items: + return "Too many items were added to a CBOR map or array of known length"; + case cbor_errc::too_few_items: + return "Too few items were added to a CBOR map or array of known length"; + case cbor_errc::number_too_large: + return "Number exceeds implementation limits"; + case cbor_errc::stringref_too_large: + return "stringref exceeds stringref map size"; + case cbor_errc::max_nesting_depth_exceeded: + return "Data item nesting exceeds limit in options"; + case cbor_errc::unknown_type: + return "An unknown type was found in the stream"; + case cbor_errc::illegal_chunked_string: + return "An illegal type was found while parsing an indefinite length string"; + default: + return "Unknown CBOR parser error"; + } + } +}; + +inline +const std::error_category& cbor_error_category() +{ + static cbor_error_category_impl instance; + return instance; +} + +inline +std::error_code make_error_code(cbor_errc e) +{ + return std::error_code(static_cast(e),cbor_error_category()); +} + + +#if !defined(JSONCONS_NO_DEPRECATED) + +JSONCONS_DEPRECATED_MSG("Instead, use ser_error") typedef ser_error cbor_error; +JSONCONS_DEPRECATED_MSG("Instead, use ser_error") typedef ser_error cbor_decode_error; +JSONCONS_DEPRECATED_MSG("Instead, use ser_error") typedef ser_error cbor_reader_errc; +#endif + +}} + +namespace std { + template<> + struct is_error_code_enum : public true_type + { + }; +} + +#endif diff --git a/include/jsoncons_ext/cbor/cbor_options.hpp b/include/jsoncons_ext/cbor/cbor_options.hpp new file mode 100644 index 0000000..1de4a4e --- /dev/null +++ b/include/jsoncons_ext/cbor/cbor_options.hpp @@ -0,0 +1,113 @@ +// Copyright 2019 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_CBOR_CBOR_OPTIONS_HPP +#define JSONCONS_CBOR_CBOR_OPTIONS_HPP + +#include +#include // std::numeric_limits +#include +#include +#include + +namespace jsoncons { namespace cbor { + +class cbor_options; + +class cbor_options_common +{ + friend class cbor_options; + + int max_nesting_depth_; +protected: + virtual ~cbor_options_common() = default; + + cbor_options_common() + : max_nesting_depth_(1024) + { + } + + cbor_options_common(const cbor_options_common&) = default; + cbor_options_common& operator=(const cbor_options_common&) = default; + cbor_options_common(cbor_options_common&&) = default; + cbor_options_common& operator=(cbor_options_common&&) = default; +public: + int max_nesting_depth() const + { + return max_nesting_depth_; + } +}; + +class cbor_decode_options : public virtual cbor_options_common +{ + friend class cbor_options; +public: + cbor_decode_options() + { + } +}; + +class cbor_encode_options : public virtual cbor_options_common +{ + friend class cbor_options; + + bool use_stringref_; + bool use_typed_arrays_; +public: + cbor_encode_options() + : use_stringref_(false), + use_typed_arrays_(false) + { + } + + bool pack_strings() const + { + return use_stringref_; + } + + bool use_typed_arrays() const + { + return use_typed_arrays_; + } +}; + +class cbor_options final : public cbor_decode_options, public cbor_encode_options +{ +public: + using cbor_options_common::max_nesting_depth; + using cbor_encode_options::pack_strings; + using cbor_encode_options::use_typed_arrays; + + cbor_options& max_nesting_depth(int value) + { + this->max_nesting_depth_ = value; + return *this; + } + + cbor_options& pack_strings(bool value) + { + this->use_stringref_ = value; + return *this; + } + + cbor_options& use_typed_arrays(bool value) + { + this->use_typed_arrays_ = value; + return *this; + } + +#if !defined(JSONCONS_NO_DEPRECATED) + JSONCONS_DEPRECATED_MSG("Instead, use use_typed_arrays(bool)") + cbor_options& enable_typed_arrays(bool value) + { + this->use_typed_arrays_ = value; + return *this; + } +#endif +}; + +}} +#endif diff --git a/include/jsoncons_ext/cbor/cbor_parser.hpp b/include/jsoncons_ext/cbor/cbor_parser.hpp new file mode 100644 index 0000000..f3d03bb --- /dev/null +++ b/include/jsoncons_ext/cbor/cbor_parser.hpp @@ -0,0 +1,1942 @@ +// Copyright 2017 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_CBOR_CBOR_PARSER_HPP +#define JSONCONS_CBOR_CBOR_PARSER_HPP + +#include +#include +#include +#include // std::move +#include // std::bitset +#include +#include +#include +#include +#include +#include +#include +#include + +namespace jsoncons { namespace cbor { + +enum class parse_mode {root,accept,array,indefinite_array,map_key,map_value,indefinite_map_key,indefinite_map_value,multi_dim}; + +struct mapped_string +{ + jsoncons::cbor::detail::cbor_major_type type; + std::string s; + std::vector bytes; + + mapped_string(const std::string& s) + : type(jsoncons::cbor::detail::cbor_major_type::text_string), s(s) + { + } + + mapped_string(std::string&& s) + : type(jsoncons::cbor::detail::cbor_major_type::text_string), s(std::move(s)) + { + } + + mapped_string(const std::vector& bytes) + : type(jsoncons::cbor::detail::cbor_major_type::byte_string), bytes(bytes) + { + } + + mapped_string(std::vector&& bytes) + : type(jsoncons::cbor::detail::cbor_major_type::byte_string), bytes(std::move(bytes)) + { + } + + mapped_string(const mapped_string&) = default; + + mapped_string(mapped_string&&) = default; + + mapped_string& operator=(const mapped_string&) = default; + + mapped_string& operator=(mapped_string&&) = default; +}; + +struct parse_state +{ + parse_mode mode; + std::size_t length; + std::size_t index; + bool pop_stringref_map_stack; + + parse_state(parse_mode mode, std::size_t length, bool pop_stringref_map_stack = false) noexcept + : mode(mode), length(length), index(0), pop_stringref_map_stack(pop_stringref_map_stack) + { + } + + parse_state(const parse_state&) = default; + parse_state(parse_state&&) = default; +}; + +template > +class basic_cbor_parser : public ser_context +{ + using char_type = char; + using char_traits_type = std::char_traits; + using allocator_type = Allocator; + using char_allocator_type = typename std::allocator_traits:: template rebind_alloc; + using byte_allocator_type = typename std::allocator_traits:: template rebind_alloc; + using tag_allocator_type = typename std::allocator_traits:: template rebind_alloc; + using parse_state_allocator_type = typename std::allocator_traits:: template rebind_alloc; + using stringref_map = std::vector; + using stringref_map_allocator_type = typename std::allocator_traits:: template rebind_alloc; + + using string_type = std::basic_string; + + enum {stringref_tag, // 25 + stringref_namespace_tag, // 256 + item_tag, + num_of_tags}; + + std::bitset other_tags_; + + allocator_type alloc_; + Source source_; + cbor_decode_options options_; + + bool more_; + bool done_; + string_type text_buffer_; + std::vector bytes_buffer_; + uint64_t item_tag_; + std::vector state_stack_; + std::vector typed_array_; + std::vector shape_; + std::size_t index_; // TODO: Never used! + std::vector stringref_map_stack_; + int nesting_depth_; + + struct read_byte_string_from_buffer + { + byte_string_view bytes; + + read_byte_string_from_buffer(const byte_string_view& b) + : bytes(b) + { + } + template + void operator()(Container& c, std::error_code&) + { + c.clear(); + c.reserve(bytes.size()); + for (auto b : bytes) + { + c.push_back(b); + } + } + }; + + struct read_byte_string_from_source + { + basic_cbor_parser* source; + + read_byte_string_from_source(basic_cbor_parser* source) + : source(source) + { + } + template + void operator()(Container& c, std::error_code& ec) + { + source->read_byte_string(c,ec); + } + }; + +public: + template + basic_cbor_parser(Sourceable&& source, + const cbor_decode_options& options = cbor_decode_options(), + const Allocator alloc = Allocator()) + : alloc_(alloc), + source_(std::forward(source)), + options_(options), + more_(true), + done_(false), + text_buffer_(alloc), + bytes_buffer_(alloc), + item_tag_(0), + state_stack_(alloc), + typed_array_(alloc), + index_(0), + stringref_map_stack_(alloc), + nesting_depth_(0) + { + state_stack_.emplace_back(parse_mode::root,0); + } + + void restart() + { + more_ = true; + } + + void reset() + { + more_ = true; + done_ = false; + text_buffer_.clear(); + bytes_buffer_.clear(); + item_tag_ = 0; + state_stack_.clear(); + state_stack_.emplace_back(parse_mode::root,0); + typed_array_.clear(); + stringref_map_stack_.clear(); + nesting_depth_ = 0; + } + + template + void reset(Sourceable&& source) + { + source_ = std::forward(source); + reset(); + } + + bool done() const + { + return done_; + } + + bool stopped() const + { + return !more_; + } + + std::size_t line() const override + { + return 0; + } + + std::size_t column() const override + { + return source_.position(); + } + + void parse(json_visitor2& visitor, std::error_code& ec) + { + while (!done_ && more_) + { + switch (state_stack_.back().mode) + { + case parse_mode::multi_dim: + { + if (state_stack_.back().index == 0) + { + ++state_stack_.back().index; + read_item(visitor, ec); + } + else + { + produce_end_multi_dim(visitor, ec); + } + break; + } + case parse_mode::array: + { + if (state_stack_.back().index < state_stack_.back().length) + { + ++state_stack_.back().index; + read_item(visitor, ec); + } + else + { + end_array(visitor, ec); + } + break; + } + case parse_mode::indefinite_array: + { + auto c = source_.peek(); + if (c.eof) + { + ec = cbor_errc::unexpected_eof; + more_ = false; + return; + } + if (c.value == 0xff) + { + source_.ignore(1); + end_array(visitor, ec); + } + else + { + read_item(visitor, ec); + } + break; + } + case parse_mode::map_key: + { + if (state_stack_.back().index < state_stack_.back().length) + { + ++state_stack_.back().index; + state_stack_.back().mode = parse_mode::map_value; + read_item(visitor, ec); + } + else + { + end_object(visitor, ec); + } + break; + } + case parse_mode::map_value: + { + state_stack_.back().mode = parse_mode::map_key; + read_item(visitor, ec); + break; + } + case parse_mode::indefinite_map_key: + { + auto c = source_.peek(); + if (c.eof) + { + ec = cbor_errc::unexpected_eof; + more_ = false; + return; + } + if (c.value == 0xff) + { + source_.ignore(1); + end_object(visitor, ec); + } + else + { + state_stack_.back().mode = parse_mode::indefinite_map_value; + read_item(visitor, ec); + } + break; + } + case parse_mode::indefinite_map_value: + { + state_stack_.back().mode = parse_mode::indefinite_map_key; + read_item(visitor, ec); + break; + } + case parse_mode::root: + { + state_stack_.back().mode = parse_mode::accept; + read_item(visitor, ec); + break; + } + case parse_mode::accept: + { + JSONCONS_ASSERT(state_stack_.size() == 1); + state_stack_.clear(); + more_ = false; + done_ = true; + visitor.flush(); + break; + } + } + } + } +private: + void read_item(json_visitor2& visitor, std::error_code& ec) + { + read_tags(ec); + if (!more_) + { + return; + } + auto c = source_.peek(); + if (c.eof) + { + ec = cbor_errc::unexpected_eof; + more_ = false; + return; + } + jsoncons::cbor::detail::cbor_major_type major_type = get_major_type(c.value); + uint8_t info = get_additional_information_value(c.value); + + switch (major_type) + { + case jsoncons::cbor::detail::cbor_major_type::unsigned_integer: + { + uint64_t val = get_uint64_value(ec); + if (ec) + { + return; + } + if (!stringref_map_stack_.empty() && other_tags_[stringref_tag]) + { + other_tags_[stringref_tag] = false; + if (val >= stringref_map_stack_.back().size()) + { + ec = cbor_errc::stringref_too_large; + more_ = false; + return; + } + stringref_map::size_type index = (stringref_map::size_type)val; + if (index != val) + { + ec = cbor_errc::number_too_large; + more_ = false; + return; + } + auto& str = stringref_map_stack_.back().at(index); + switch (str.type) + { + case jsoncons::cbor::detail::cbor_major_type::text_string: + { + handle_string(visitor, jsoncons::basic_string_view(str.s.data(),str.s.length()),ec); + if (ec) + { + return; + } + break; + } + case jsoncons::cbor::detail::cbor_major_type::byte_string: + { + read_byte_string_from_buffer read(byte_string_view(str.bytes)); + write_byte_string(read, visitor, ec); + if (ec) + { + return; + } + break; + } + default: + JSONCONS_UNREACHABLE(); + break; + } + } + else + { + semantic_tag tag = semantic_tag::none; + if (other_tags_[item_tag]) + { + if (item_tag_ == 1) + { + tag = semantic_tag::epoch_second; + } + other_tags_[item_tag] = false; + } + more_ = visitor.uint64_value(val, tag, *this, ec); + } + break; + } + case jsoncons::cbor::detail::cbor_major_type::negative_integer: + { + int64_t val = get_int64_value(ec); + if (ec) + { + return; + } + semantic_tag tag = semantic_tag::none; + if (other_tags_[item_tag]) + { + if (item_tag_ == 1) + { + tag = semantic_tag::epoch_second; + } + other_tags_[item_tag] = false; + } + more_ = visitor.int64_value(val, tag, *this, ec); + break; + } + case jsoncons::cbor::detail::cbor_major_type::byte_string: + { + read_byte_string_from_source read(this); + write_byte_string(read, visitor, ec); + if (ec) + { + return; + } + break; + } + case jsoncons::cbor::detail::cbor_major_type::text_string: + { + text_buffer_.clear(); + read_text_string(text_buffer_, ec); + if (ec) + { + return; + } + auto result = unicode_traits::validate(text_buffer_.data(),text_buffer_.size()); + if (result.ec != unicode_traits::conv_errc()) + { + ec = cbor_errc::invalid_utf8_text_string; + more_ = false; + return; + } + handle_string(visitor, jsoncons::basic_string_view(text_buffer_.data(),text_buffer_.length()),ec); + if (ec) + { + return; + } + break; + } + case jsoncons::cbor::detail::cbor_major_type::semantic_tag: + { + JSONCONS_UNREACHABLE(); + break; + } + case jsoncons::cbor::detail::cbor_major_type::simple: + { + switch (info) + { + case 0x14: + more_ = visitor.bool_value(false, semantic_tag::none, *this, ec); + source_.ignore(1); + break; + case 0x15: + more_ = visitor.bool_value(true, semantic_tag::none, *this, ec); + source_.ignore(1); + break; + case 0x16: + more_ = visitor.null_value(semantic_tag::none, *this, ec); + source_.ignore(1); + break; + case 0x17: + more_ = visitor.null_value(semantic_tag::undefined, *this, ec); + source_.ignore(1); + break; + case 0x19: // Half-Precision Float (two-byte IEEE 754) + { + uint64_t val = get_uint64_value(ec); + if (ec) + { + return; + } + more_ = visitor.half_value(static_cast(val), semantic_tag::none, *this, ec); + break; + } + case 0x1a: // Single-Precision Float (four-byte IEEE 754) + case 0x1b: // Double-Precision Float (eight-byte IEEE 754) + { + double val = get_double(ec); + if (ec) + { + return; + } + semantic_tag tag = semantic_tag::none; + if (other_tags_[item_tag]) + { + if (item_tag_ == 1) + { + tag = semantic_tag::epoch_second; + } + other_tags_[item_tag] = false; + } + more_ = visitor.double_value(val, tag, *this, ec); + break; + } + default: + { + ec = cbor_errc::unknown_type; + more_ = false; + return; + } + } + break; + } + case jsoncons::cbor::detail::cbor_major_type::array: + { + if (other_tags_[item_tag]) + { + switch (item_tag_) + { + case 0x04: + text_buffer_.clear(); + read_decimal_fraction(text_buffer_, ec); + if (ec) + { + return; + } + more_ = visitor.string_value(text_buffer_, semantic_tag::bigdec, *this, ec); + break; + case 0x05: + text_buffer_.clear(); + read_bigfloat(text_buffer_, ec); + if (ec) + { + return; + } + more_ = visitor.string_value(text_buffer_, semantic_tag::bigfloat, *this, ec); + break; + case 40: // row major storage + produce_begin_multi_dim(visitor, semantic_tag::multi_dim_row_major, ec); + break; + case 1040: // column major storage + produce_begin_multi_dim(visitor, semantic_tag::multi_dim_column_major, ec); + break; + default: + begin_array(visitor, info, ec); + break; + } + other_tags_[item_tag] = false; + } + else + { + begin_array(visitor, info, ec); + } + break; + } + case jsoncons::cbor::detail::cbor_major_type::map: + { + begin_object(visitor, info, ec); + break; + } + default: + break; + } + other_tags_[item_tag] = false; + } + + void begin_array(json_visitor2& visitor, uint8_t info, std::error_code& ec) + { + if (JSONCONS_UNLIKELY(++nesting_depth_ > options_.max_nesting_depth())) + { + ec = cbor_errc::max_nesting_depth_exceeded; + more_ = false; + return; + } + semantic_tag tag = semantic_tag::none; + bool pop_stringref_map_stack = false; + if (other_tags_[stringref_namespace_tag]) + { + stringref_map_stack_.emplace_back(alloc_); + other_tags_[stringref_namespace_tag] = false; + pop_stringref_map_stack = true; + } + switch (info) + { + case jsoncons::cbor::detail::additional_info::indefinite_length: + { + state_stack_.emplace_back(parse_mode::indefinite_array,0,pop_stringref_map_stack); + more_ = visitor.begin_array(tag, *this, ec); + source_.ignore(1); + break; + } + default: // definite length + { + std::size_t len = get_size(ec); + if (!more_) + { + return; + } + state_stack_.emplace_back(parse_mode::array,len,pop_stringref_map_stack); + more_ = visitor.begin_array(len, tag, *this, ec); + break; + } + } + } + + void end_array(json_visitor2& visitor, std::error_code& ec) + { + --nesting_depth_; + + more_ = visitor.end_array(*this, ec); + if (state_stack_.back().pop_stringref_map_stack) + { + stringref_map_stack_.pop_back(); + } + state_stack_.pop_back(); + } + + void begin_object(json_visitor2& visitor, uint8_t info, std::error_code& ec) + { + if (JSONCONS_UNLIKELY(++nesting_depth_ > options_.max_nesting_depth())) + { + ec = cbor_errc::max_nesting_depth_exceeded; + more_ = false; + return; + } + bool pop_stringref_map_stack = false; + if (other_tags_[stringref_namespace_tag]) + { + stringref_map_stack_.emplace_back(alloc_); + other_tags_[stringref_namespace_tag] = false; + pop_stringref_map_stack = true; + } + switch (info) + { + case jsoncons::cbor::detail::additional_info::indefinite_length: + { + state_stack_.emplace_back(parse_mode::indefinite_map_key,0,pop_stringref_map_stack); + more_ = visitor.begin_object(semantic_tag::none, *this, ec); + source_.ignore(1); + break; + } + default: // definite_length + { + std::size_t len = get_size(ec); + if (!more_) + { + return; + } + state_stack_.emplace_back(parse_mode::map_key,len,pop_stringref_map_stack); + more_ = visitor.begin_object(len, semantic_tag::none, *this, ec); + break; + } + } + } + + void end_object(json_visitor2& visitor, std::error_code& ec) + { + --nesting_depth_; + more_ = visitor.end_object(*this, ec); + if (state_stack_.back().pop_stringref_map_stack) + { + stringref_map_stack_.pop_back(); + } + state_stack_.pop_back(); + } + + void read_text_string(string_type& s, std::error_code& ec) + { + auto c = source_.peek(); + if (c.eof) + { + ec = cbor_errc::unexpected_eof; + more_ = false; + return; + } + jsoncons::cbor::detail::cbor_major_type major_type = get_major_type(c.value); + uint8_t info = get_additional_information_value(c.value); + + JSONCONS_ASSERT(major_type == jsoncons::cbor::detail::cbor_major_type::text_string); + auto func = [&s](Source& source, std::size_t length, std::error_code& ec) -> bool + { + if (source_reader::read(source, s, length) != length) + { + ec = cbor_errc::unexpected_eof; + return false; + } + return true; + }; + iterate_string_chunks(func, major_type, ec); + if (!stringref_map_stack_.empty() && + info != jsoncons::cbor::detail::additional_info::indefinite_length && + s.length() >= jsoncons::cbor::detail::min_length_for_stringref(stringref_map_stack_.back().size())) + { + stringref_map_stack_.back().emplace_back(s); + } + } + + std::size_t get_size(std::error_code& ec) + { + uint64_t u = get_uint64_value(ec); + if (!more_) + { + return 0; + } + std::size_t len = static_cast(u); + if (len != u) + { + ec = cbor_errc::number_too_large; + more_ = false; + } + return len; + } + + bool read_byte_string(std::vector& v, std::error_code& ec) + { + bool more = true; + v.clear(); + auto c = source_.peek(); + if (c.eof) + { + ec = cbor_errc::unexpected_eof; + more = false; + return more; + } + jsoncons::cbor::detail::cbor_major_type major_type = get_major_type(c.value); + uint8_t info = get_additional_information_value(c.value); + + JSONCONS_ASSERT(major_type == jsoncons::cbor::detail::cbor_major_type::byte_string); + + switch(info) + { + case jsoncons::cbor::detail::additional_info::indefinite_length: + { + auto func = [&v,&more](Source& source, std::size_t length, std::error_code& ec) -> bool + { + if (source_reader::read(source, v, length) != length) + { + ec = cbor_errc::unexpected_eof; + more = false; + return more; + } + return true; + }; + iterate_string_chunks(func, major_type, ec); + break; + } + default: + { + std::size_t length = get_size(ec); + if (ec) + { + more = false; + return more; + } + if (source_reader::read(source_, v, length) != length) + { + ec = cbor_errc::unexpected_eof; + more = false; + return more; + } + if (!stringref_map_stack_.empty() && + v.size() >= jsoncons::cbor::detail::min_length_for_stringref(stringref_map_stack_.back().size())) + { + stringref_map_stack_.back().emplace_back(v); + } + break; + } + } + return more; + } + + template + void iterate_string_chunks(Function& func, jsoncons::cbor::detail::cbor_major_type type, std::error_code& ec) + { + int nesting_level = 0; + + bool done = false; + while (!done) + { + auto c = source_.peek(); + if (c.eof) + { + ec = cbor_errc::unexpected_eof; + more_ = false; + return; + } + if (nesting_level > 0 && c.value == 0xff) + { + --nesting_level; + if (nesting_level == 0) + { + done = true; + } + source_.ignore(1); + continue; + } + + jsoncons::cbor::detail::cbor_major_type major_type = get_major_type(c.value); + if (major_type != type) + { + ec = cbor_errc::illegal_chunked_string; + more_ = false; + return; + } + uint8_t info = get_additional_information_value(c.value); + + switch (info) + { + case jsoncons::cbor::detail::additional_info::indefinite_length: + { + ++nesting_level; + source_.ignore(1); + break; + } + default: // definite length + { + std::size_t length = get_size(ec); + if (!more_) + { + return; + } + more_ = func(source_, length, ec); + if (!more_) + { + return; + } + if (nesting_level == 0) + { + done = true; + } + break; + } + } + } + } + + uint64_t get_uint64_value(std::error_code& ec) + { + uint64_t val = 0; + + uint8_t initial_b; + if (source_.read(&initial_b, 1) == 0) + { + ec = cbor_errc::unexpected_eof; + more_ = false; + return 0; + } + uint8_t info = get_additional_information_value(initial_b); + switch (info) + { + case JSONCONS_CBOR_0x00_0x17: // Integer 0x00..0x17 (0..23) + { + val = info; + break; + } + + case 0x18: // Unsigned integer (one-byte uint8_t follows) + { + uint8_t b; + if (source_.read(&b, 1) == 0) + { + ec = cbor_errc::unexpected_eof; + more_ = false; + return val; + } + val = b; + break; + } + + case 0x19: // Unsigned integer (two-byte uint16_t follows) + { + uint8_t buf[sizeof(uint16_t)]; + source_.read(buf, sizeof(uint16_t)); + val = binary::big_to_native(buf, sizeof(buf)); + break; + } + + case 0x1a: // Unsigned integer (four-byte uint32_t follows) + { + uint8_t buf[sizeof(uint32_t)]; + source_.read(buf, sizeof(uint32_t)); + val = binary::big_to_native(buf, sizeof(buf)); + break; + } + + case 0x1b: // Unsigned integer (eight-byte uint64_t follows) + { + uint8_t buf[sizeof(uint64_t)]; + source_.read(buf, sizeof(uint64_t)); + val = binary::big_to_native(buf, sizeof(buf)); + break; + } + default: + break; + } + return val; + } + + int64_t get_int64_value(std::error_code& ec) + { + int64_t val = 0; + + auto ch = source_.peek(); + if (ch.eof) + { + ec = cbor_errc::unexpected_eof; + more_ = false; + return val; + } + + jsoncons::cbor::detail::cbor_major_type major_type = get_major_type(ch.value); + uint8_t info = get_additional_information_value(ch.value); + switch (major_type) + { + case jsoncons::cbor::detail::cbor_major_type::negative_integer: + source_.ignore(1); + switch (info) + { + case JSONCONS_CBOR_0x00_0x17: // 0x00..0x17 (0..23) + { + val = static_cast(- 1 - info); + break; + } + case 0x18: // Negative integer (one-byte uint8_t follows) + { + uint8_t b; + if (source_.read(&b, 1) == 0) + { + ec = cbor_errc::unexpected_eof; + more_ = false; + return val; + } + val = static_cast(-1) - static_cast(b); + break; + } + + case 0x19: // Negative integer -1-n (two-byte uint16_t follows) + { + uint8_t buf[sizeof(uint16_t)]; + if (source_.read(buf, sizeof(uint16_t)) != sizeof(uint16_t)) + { + ec = cbor_errc::unexpected_eof; + more_ = false; + return val; + } + auto x = binary::big_to_native(buf, sizeof(buf)); + val = static_cast(-1)- x; + break; + } + + case 0x1a: // Negative integer -1-n (four-byte uint32_t follows) + { + uint8_t buf[sizeof(uint32_t)]; + if (source_.read(buf, sizeof(uint32_t)) != sizeof(uint32_t)) + { + ec = cbor_errc::unexpected_eof; + more_ = false; + return val; + } + auto x = binary::big_to_native(buf, sizeof(buf)); + val = static_cast(-1)- x; + break; + } + + case 0x1b: // Negative integer -1-n (eight-byte uint64_t follows) + { + uint8_t buf[sizeof(uint64_t)]; + if (source_.read(buf, sizeof(uint64_t)) != sizeof(uint64_t)) + { + ec = cbor_errc::unexpected_eof; + more_ = false; + return val; + } + auto x = binary::big_to_native(buf, sizeof(buf)); + val = static_cast(-1)- static_cast(x); + break; + } + } + break; + + case jsoncons::cbor::detail::cbor_major_type::unsigned_integer: + { + uint64_t x = get_uint64_value(ec); + if (ec) + { + return 0; + } + if (x <= static_cast((std::numeric_limits::max)())) + { + val = x; + } + else + { + // error; + } + + break; + } + break; + default: + break; + } + + return val; + } + + double get_double(std::error_code& ec) + { + double val = 0; + + uint8_t b; + if (source_.read(&b, 1) == 0) + { + ec = cbor_errc::unexpected_eof; + more_ = false; + return 0; + } + uint8_t info = get_additional_information_value(b); + switch (info) + { + case 0x1a: // Single-Precision Float (four-byte IEEE 754) + { + uint8_t buf[sizeof(float)]; + if (source_.read(buf, sizeof(float)) !=sizeof(float)) + { + ec = cbor_errc::unexpected_eof; + more_ = false; + return 0; + } + val = binary::big_to_native(buf, sizeof(buf)); + break; + } + + case 0x1b: // Double-Precision Float (eight-byte IEEE 754) + { + uint8_t buf[sizeof(double)]; + if (source_.read(buf, sizeof(double)) != sizeof(double)) + { + ec = cbor_errc::unexpected_eof; + more_ = false; + return 0; + } + val = binary::big_to_native(buf, sizeof(buf)); + break; + } + default: + break; + } + + return val; + } + + void read_decimal_fraction(string_type& result, std::error_code& ec) + { + std::size_t size = get_size(ec); + if (!more_) + { + return; + } + if (size != 2) + { + ec = cbor_errc::invalid_decimal_fraction; + more_ = false; + return; + } + + auto c = source_.peek(); + if (c.eof) + { + ec = cbor_errc::unexpected_eof; + more_ = false; + return; + } + int64_t exponent = 0; + switch (get_major_type(c.value)) + { + case jsoncons::cbor::detail::cbor_major_type::unsigned_integer: + { + exponent = get_uint64_value(ec); + if (ec) + { + return; + } + break; + } + case jsoncons::cbor::detail::cbor_major_type::negative_integer: + { + exponent = get_int64_value(ec); + if (ec) + { + return; + } + break; + } + default: + { + ec = cbor_errc::invalid_decimal_fraction; + more_ = false; + return; + } + } + + string_type s; + + c = source_.peek(); + if (c.eof) + { + ec = cbor_errc::unexpected_eof; + more_ = false; + return; + } + + switch (get_major_type(c.value)) + { + case jsoncons::cbor::detail::cbor_major_type::unsigned_integer: + { + uint64_t val = get_uint64_value(ec); + if (ec) + { + return; + } + jsoncons::detail::from_integer(val, s); + break; + } + case jsoncons::cbor::detail::cbor_major_type::negative_integer: + { + int64_t val = get_int64_value(ec); + if (ec) + { + return; + } + jsoncons::detail::from_integer(val, s); + break; + } + case jsoncons::cbor::detail::cbor_major_type::semantic_tag: + { + uint8_t b; + if (source_.read(&b, 1) == 0) + { + ec = cbor_errc::unexpected_eof; + more_ = false; + return; + } + uint8_t tag = get_additional_information_value(b); + c = source_.peek(); + if (c.eof) + { + ec = cbor_errc::unexpected_eof; + more_ = false; + return; + } + + if (get_major_type(c.value) == jsoncons::cbor::detail::cbor_major_type::byte_string) + { + bytes_buffer_.clear(); + read_byte_string(bytes_buffer_, ec); + if (ec) + { + more_ = false; + return; + } + if (tag == 2) + { + bigint n = bigint::from_bytes_be(1, bytes_buffer_.data(), bytes_buffer_.size()); + n.write_string(s); + } + else if (tag == 3) + { + bigint n = bigint::from_bytes_be(1, bytes_buffer_.data(), bytes_buffer_.size()); + n = -1 - n; + n.write_string(s); + } + } + break; + } + default: + { + ec = cbor_errc::invalid_decimal_fraction; + more_ = false; + return; + } + } + + if (s.size() >= static_cast((std::numeric_limits::max)()) || + exponent >= (std::numeric_limits::max)() || + exponent <= (std::numeric_limits::min)()) + { + ec = cbor_errc::invalid_decimal_fraction; + more_ = false; + return; + } + else if (s.size() > 0) + { + if (s[0] == '-') + { + result.push_back('-'); + jsoncons::detail::prettify_string(s.c_str()+1, s.size()-1, (int)exponent, -4, 17, result); + } + else + { + jsoncons::detail::prettify_string(s.c_str(), s.size(), (int)exponent, -4, 17, result); + } + } + else + { + ec = cbor_errc::invalid_decimal_fraction; + more_ = false; + return; + } + } + + void read_bigfloat(string_type& s, std::error_code& ec) + { + std::size_t size = get_size(ec); + if (!more_) + { + return; + } + if (size != 2) + { + ec = cbor_errc::invalid_bigfloat; + more_ = false; + return; + } + + auto c = source_.peek(); + if (c.eof) + { + ec = cbor_errc::unexpected_eof; + more_ = false; + return; + } + int64_t exponent = 0; + switch (get_major_type(c.value)) + { + case jsoncons::cbor::detail::cbor_major_type::unsigned_integer: + { + exponent = get_uint64_value(ec); + if (ec) + { + return; + } + break; + } + case jsoncons::cbor::detail::cbor_major_type::negative_integer: + { + exponent = get_int64_value(ec); + if (ec) + { + return; + } + break; + } + default: + { + ec = cbor_errc::invalid_bigfloat; + more_ = false; + return; + } + } + + c = source_.peek(); + if (c.eof) + { + ec = cbor_errc::unexpected_eof; + more_ = false; + return; + } + switch (get_major_type(c.value)) + { + case jsoncons::cbor::detail::cbor_major_type::unsigned_integer: + { + uint64_t val = get_uint64_value(ec); + if (ec) + { + return; + } + s.push_back('0'); + s.push_back('x'); + jsoncons::detail::integer_to_string_hex(val, s); + break; + } + case jsoncons::cbor::detail::cbor_major_type::negative_integer: + { + int64_t val = get_int64_value(ec); + if (ec) + { + return; + } + s.push_back('-'); + s.push_back('0'); + s.push_back('x'); + jsoncons::detail::integer_to_string_hex(static_cast(-val), s); + break; + } + case jsoncons::cbor::detail::cbor_major_type::semantic_tag: + { + uint8_t b; + if (source_.read(&b, 1) == 0) + { + ec = cbor_errc::unexpected_eof; + more_ = false; + return; + } + uint8_t tag = get_additional_information_value(b); + + c = source_.peek(); + if (c.eof) + { + ec = cbor_errc::unexpected_eof; + more_ = false; + return; + } + + if (get_major_type(c.value) == jsoncons::cbor::detail::cbor_major_type::byte_string) + { + bytes_buffer_.clear(); + more_ = read_byte_string(bytes_buffer_, ec); + if (!more_) + { + return; + } + if (tag == 2) + { + s.push_back('0'); + s.push_back('x'); + bigint n = bigint::from_bytes_be(1, bytes_buffer_.data(), bytes_buffer_.size()); + n.write_string_hex(s); + } + else if (tag == 3) + { + s.push_back('-'); + s.push_back('0'); + bigint n = bigint::from_bytes_be(1, bytes_buffer_.data(), bytes_buffer_.size()); + n = -1 - n; + n.write_string_hex(s); + s[2] = 'x'; // overwrite minus + } + } + break; + } + default: + { + ec = cbor_errc::invalid_bigfloat; + more_ = false; + return; + } + } + + s.push_back('p'); + if (exponent >=0) + { + jsoncons::detail::integer_to_string_hex(static_cast(exponent), s); + } + else + { + s.push_back('-'); + jsoncons::detail::integer_to_string_hex(static_cast(-exponent), s); + } + } + + static jsoncons::cbor::detail::cbor_major_type get_major_type(uint8_t type) + { + static constexpr uint8_t major_type_shift = 0x05; + uint8_t value = type >> major_type_shift; + return static_cast(value); + } + + static uint8_t get_additional_information_value(uint8_t type) + { + static constexpr uint8_t additional_information_mask = (1U << 5) - 1; + uint8_t value = type & additional_information_mask; + return value; + } + + void read_tags(std::error_code& ec) + { + auto c = source_.peek(); + if (c.eof) + { + ec = cbor_errc::unexpected_eof; + more_ = false; + return; + } + jsoncons::cbor::detail::cbor_major_type major_type = get_major_type(c.value); + + while (major_type == jsoncons::cbor::detail::cbor_major_type::semantic_tag) + { + uint64_t val = get_uint64_value(ec); + if (!more_) + { + return; + } + switch(val) + { + case 25: // stringref + other_tags_[stringref_tag] = true; + break; + case 256: // stringref-namespace + other_tags_[stringref_namespace_tag] = true; + break; + default: + other_tags_[item_tag] = true; + item_tag_ = val; + break; + } + c = source_.peek(); + if (c.eof) + { + ec = cbor_errc::unexpected_eof; + more_ = false; + return; + } + major_type = get_major_type(c.value); + } + } + + void handle_string(json_visitor2& visitor, const jsoncons::basic_string_view& v, std::error_code& ec) + { + semantic_tag tag = semantic_tag::none; + if (other_tags_[item_tag]) + { + switch (item_tag_) + { + case 0: + tag = semantic_tag::datetime; + break; + case 32: + tag = semantic_tag::uri; + break; + case 33: + tag = semantic_tag::base64url; + break; + case 34: + tag = semantic_tag::base64; + break; + default: + break; + } + other_tags_[item_tag] = false; + } + more_ = visitor.string_value(v, tag, *this, ec); + } + + static jsoncons::endian get_typed_array_endianness(const uint8_t tag) + { + return ((tag & detail::cbor_array_tags_e_mask) >> detail::cbor_array_tags_e_shift) == 0 ? jsoncons::endian::big : jsoncons::endian::little; + } + + static std::size_t get_typed_array_bytes_per_element(const uint8_t tag) + { + const uint8_t f = (tag & detail::cbor_array_tags_f_mask) >> detail::cbor_array_tags_f_shift; + const uint8_t ll = (tag & detail::cbor_array_tags_ll_mask) >> detail::cbor_array_tags_ll_shift; + + return std::size_t(1) << (f + ll); + } + + template + void write_byte_string(Read read, json_visitor2& visitor, std::error_code& ec) + { + if (other_tags_[item_tag]) + { + switch (item_tag_) + { + case 0x2: + { + bytes_buffer_.clear(); + read(bytes_buffer_,ec); + if (ec) + { + more_ = false; + return; + } + bigint n = bigint::from_bytes_be(1, bytes_buffer_.data(), bytes_buffer_.size()); + text_buffer_.clear(); + n.write_string(text_buffer_); + more_ = visitor.string_value(text_buffer_, semantic_tag::bigint, *this, ec); + break; + } + case 0x3: + { + bytes_buffer_.clear(); + read(bytes_buffer_,ec); + if (ec) + { + more_ = false; + return; + } + bigint n = bigint::from_bytes_be(1, bytes_buffer_.data(), bytes_buffer_.size()); + n = -1 - n; + text_buffer_.clear(); + n.write_string(text_buffer_); + more_ = visitor.string_value(text_buffer_, semantic_tag::bigint, *this, ec); + break; + } + case 0x15: + { + read(bytes_buffer_,ec); + if (ec) + { + more_ = false; + return; + } + more_ = visitor.byte_string_value(bytes_buffer_, semantic_tag::base64url, *this, ec); + break; + } + case 0x16: + { + read(bytes_buffer_,ec); + if (ec) + { + more_ = false; + return; + } + more_ = visitor.byte_string_value(bytes_buffer_, semantic_tag::base64, *this, ec); + break; + } + case 0x17: + { + read(bytes_buffer_,ec); + if (ec) + { + more_ = false; + return; + } + more_ = visitor.byte_string_value(bytes_buffer_, semantic_tag::base16, *this, ec); + break; + } + case 0x40: + { + typed_array_.clear(); + read(typed_array_,ec); + if (ec) + { + more_ = false; + return; + } + uint8_t* data = reinterpret_cast(typed_array_.data()); + std::size_t size = typed_array_.size(); + more_ = visitor.typed_array(jsoncons::span(data,size), semantic_tag::none, *this, ec); + break; + } + case 0x44: + { + typed_array_.clear(); + read(typed_array_,ec); + if (ec) + { + more_ = false; + return; + } + uint8_t* data = reinterpret_cast(typed_array_.data()); + std::size_t size = typed_array_.size(); + more_ = visitor.typed_array(jsoncons::span(data,size), semantic_tag::clamped, *this, ec); + break; + } + case 0x41: + case 0x45: + { + typed_array_.clear(); + read(typed_array_,ec); + if (ec) + { + more_ = false; + return; + } + const uint8_t tag = (uint8_t)item_tag_; + jsoncons::endian e = get_typed_array_endianness(tag); + const size_t bytes_per_elem = get_typed_array_bytes_per_element(tag); + + uint16_t* data = reinterpret_cast(typed_array_.data()); + std::size_t size = typed_array_.size()/bytes_per_elem; + + if (e != jsoncons::endian::native) + { + for (std::size_t i = 0; i < size; ++i) + { + data[i] = binary::byte_swap(data[i]); + } + } + more_ = visitor.typed_array(jsoncons::span(data,size), semantic_tag::none, *this, ec); + break; + } + case 0x42: + case 0x46: + { + typed_array_.clear(); + read(typed_array_,ec); + if (ec) + { + more_ = false; + return; + } + const uint8_t tag = (uint8_t)item_tag_; + jsoncons::endian e = get_typed_array_endianness(tag); + const size_t bytes_per_elem = get_typed_array_bytes_per_element(tag); + + uint32_t* data = reinterpret_cast(typed_array_.data()); + std::size_t size = typed_array_.size()/bytes_per_elem; + if (e != jsoncons::endian::native) + { + for (std::size_t i = 0; i < size; ++i) + { + data[i] = binary::byte_swap(data[i]); + } + } + more_ = visitor.typed_array(jsoncons::span(data,size), semantic_tag::none, *this, ec); + break; + } + case 0x43: + case 0x47: + { + typed_array_.clear(); + read(typed_array_,ec); + if (ec) + { + more_ = false; + return; + } + const uint8_t tag = (uint8_t)item_tag_; + jsoncons::endian e = get_typed_array_endianness(tag); + const size_t bytes_per_elem = get_typed_array_bytes_per_element(tag); + + uint64_t* data = reinterpret_cast(typed_array_.data()); + std::size_t size = typed_array_.size()/bytes_per_elem; + if (e != jsoncons::endian::native) + { + for (std::size_t i = 0; i < size; ++i) + { + data[i] = binary::byte_swap(data[i]); + } + } + more_ = visitor.typed_array(jsoncons::span(data,size), semantic_tag::none, *this, ec); + break; + } + case 0x48: + { + typed_array_.clear(); + read(typed_array_,ec); + if (ec) + { + more_ = false; + return; + } + int8_t* data = reinterpret_cast(typed_array_.data()); + std::size_t size = typed_array_.size(); + more_ = visitor.typed_array(jsoncons::span(data,size), semantic_tag::none, *this, ec); + break; + } + case 0x49: + case 0x4d: + { + typed_array_.clear(); + read(typed_array_,ec); + if (ec) + { + more_ = false; + return; + } + const uint8_t tag = (uint8_t)item_tag_; + jsoncons::endian e = get_typed_array_endianness(tag); + const size_t bytes_per_elem = get_typed_array_bytes_per_element(tag); + + int16_t* data = reinterpret_cast(typed_array_.data()); + std::size_t size = typed_array_.size()/bytes_per_elem; + if (e != jsoncons::endian::native) + { + for (std::size_t i = 0; i < size; ++i) + { + data[i] = binary::byte_swap(data[i]); + } + } + more_ = visitor.typed_array(jsoncons::span(data,size), semantic_tag::none, *this, ec); + break; + } + case 0x4a: + case 0x4e: + { + typed_array_.clear(); + read(typed_array_,ec); + if (ec) + { + more_ = false; + return; + } + const uint8_t tag = (uint8_t)item_tag_; + jsoncons::endian e = get_typed_array_endianness(tag); + const size_t bytes_per_elem = get_typed_array_bytes_per_element(tag); + + int32_t* data = reinterpret_cast(typed_array_.data()); + std::size_t size = typed_array_.size()/bytes_per_elem; + if (e != jsoncons::endian::native) + { + for (std::size_t i = 0; i < size; ++i) + { + data[i] = binary::byte_swap(data[i]); + } + } + more_ = visitor.typed_array(jsoncons::span(data,size), semantic_tag::none, *this, ec); + break; + } + case 0x4b: + case 0x4f: + { + typed_array_.clear(); + read(typed_array_,ec); + if (ec) + { + more_ = false; + return; + } + const uint8_t tag = (uint8_t)item_tag_; + jsoncons::endian e = get_typed_array_endianness(tag); + const size_t bytes_per_elem = get_typed_array_bytes_per_element(tag); + + int64_t* data = reinterpret_cast(typed_array_.data()); + std::size_t size = typed_array_.size()/bytes_per_elem; + if (e != jsoncons::endian::native) + { + for (std::size_t i = 0; i < size; ++i) + { + data[i] = binary::byte_swap(data[i]); + } + } + more_ = visitor.typed_array(jsoncons::span(data,size), semantic_tag::none, *this, ec); + break; + } + case 0x50: + case 0x54: + { + typed_array_.clear(); + read(typed_array_,ec); + if (ec) + { + more_ = false; + return; + } + const uint8_t tag = (uint8_t)item_tag_; + jsoncons::endian e = get_typed_array_endianness(tag); + const size_t bytes_per_elem = get_typed_array_bytes_per_element(tag); + + uint16_t* data = reinterpret_cast(typed_array_.data()); + std::size_t size = typed_array_.size()/bytes_per_elem; + if (e != jsoncons::endian::native) + { + for (std::size_t i = 0; i < size; ++i) + { + data[i] = binary::byte_swap(data[i]); + } + } + more_ = visitor.typed_array(half_arg, jsoncons::span(data,size), semantic_tag::none, *this, ec); + break; + } + case 0x51: + case 0x55: + { + typed_array_.clear(); + read(typed_array_,ec); + if (ec) + { + more_ = false; + return; + } + const uint8_t tag = (uint8_t)item_tag_; + jsoncons::endian e = get_typed_array_endianness(tag); + const size_t bytes_per_elem = get_typed_array_bytes_per_element(tag); + + float* data = reinterpret_cast(typed_array_.data()); + std::size_t size = typed_array_.size()/bytes_per_elem; + if (e != jsoncons::endian::native) + { + for (std::size_t i = 0; i < size; ++i) + { + data[i] = binary::byte_swap(data[i]); + } + } + more_ = visitor.typed_array(jsoncons::span(data,size), semantic_tag::none, *this, ec); + break; + } + case 0x52: + case 0x56: + { + typed_array_.clear(); + read(typed_array_,ec); + if (ec) + { + more_ = false; + return; + } + const uint8_t tag = (uint8_t)item_tag_; + jsoncons::endian e = get_typed_array_endianness(tag); + const size_t bytes_per_elem = get_typed_array_bytes_per_element(tag); + + double* data = reinterpret_cast(typed_array_.data()); + std::size_t size = typed_array_.size()/bytes_per_elem; + + if (e != jsoncons::endian::native) + { + for (std::size_t i = 0; i < size; ++i) + { + data[i] = binary::byte_swap(data[i]); + } + } + more_ = visitor.typed_array(jsoncons::span(data,size), semantic_tag::none, *this, ec); + break; + } + default: + { + read(bytes_buffer_,ec); + if (ec) + { + more_ = false; + return; + } + more_ = visitor.byte_string_value(bytes_buffer_, item_tag_, *this, ec); + break; + } + } + other_tags_[item_tag] = false; + } + else + { + read(bytes_buffer_,ec); + if (ec) + { + return; + } + more_ = visitor.byte_string_value(bytes_buffer_, semantic_tag::none, *this, ec); + } + } + + void produce_begin_multi_dim(json_visitor2& visitor, + semantic_tag tag, + std::error_code& ec) + { + uint8_t b; + if (source_.read(&b, 1) == 0) + { + ec = cbor_errc::unexpected_eof; + more_ = false; + return; + } + jsoncons::cbor::detail::cbor_major_type major_type = get_major_type(b); + JSONCONS_ASSERT(major_type == jsoncons::cbor::detail::cbor_major_type::array); + uint8_t info = get_additional_information_value(b); + + read_shape(info, ec); + if (ec) + { + return; + } + + state_stack_.emplace_back(parse_mode::multi_dim, 0); + more_ = visitor.begin_multi_dim(shape_, tag, *this, ec); + } + + void produce_end_multi_dim(json_visitor2& visitor, std::error_code& ec) + { + more_ = visitor.end_multi_dim(*this, ec); + state_stack_.pop_back(); + } + + void read_shape(uint8_t info, std::error_code& ec) + { + shape_.clear(); + switch (info) + { + case jsoncons::cbor::detail::additional_info::indefinite_length: + { + while (true) + { + auto c = source_.peek(); + if (c.eof) + { + ec = cbor_errc::unexpected_eof; + more_ = false; + return; + } + if (c.value == 0xff) + { + source_.ignore(1); + } + else + { + std::size_t dim = get_size(ec); + if (!more_) + { + return; + } + shape_.push_back(dim); + } + } + break; + } + default: + { + std::size_t size = get_size(ec); + if (!more_) + { + return; + } + for (std::size_t i = 0; more_ && i < size; ++i) + { + std::size_t dim = get_size(ec); + if (!more_) + { + return; + } + shape_.push_back(dim); + } + break; + } + } + } +}; + +}} + +#endif diff --git a/include/jsoncons_ext/cbor/cbor_reader.hpp b/include/jsoncons_ext/cbor/cbor_reader.hpp new file mode 100644 index 0000000..a46a52e --- /dev/null +++ b/include/jsoncons_ext/cbor/cbor_reader.hpp @@ -0,0 +1,116 @@ +// Copyright 2017 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_CBOR_CBOR_READER_HPP +#define JSONCONS_CBOR_CBOR_READER_HPP + +#include +#include +#include +#include // std::move +#include +#include +#include +#include +#include +#include +#include + +namespace jsoncons { namespace cbor { + +template > +class basic_cbor_reader +{ + using char_type = char; + + basic_cbor_parser parser_; + basic_json_visitor2_to_visitor_adaptor adaptor_; + json_visitor2& visitor_; +public: + template + basic_cbor_reader(Sourceable&& source, + json_visitor& visitor, + const Allocator alloc) + : basic_cbor_reader(std::forward(source), + visitor, + cbor_decode_options(), + alloc) + { + } + + template + basic_cbor_reader(Sourceable&& source, + json_visitor& visitor, + const cbor_decode_options& options = cbor_decode_options(), + const Allocator alloc=Allocator()) + : parser_(std::forward(source), options, alloc), + adaptor_(visitor, alloc), visitor_(adaptor_) + { + } + template + basic_cbor_reader(Sourceable&& source, + json_visitor2& visitor, + const Allocator alloc) + : basic_cbor_reader(std::forward(source), + visitor, + cbor_decode_options(), + alloc) + { + } + + template + basic_cbor_reader(Sourceable&& source, + json_visitor2& visitor, + const cbor_decode_options& options = cbor_decode_options(), + const Allocator alloc=Allocator()) + : parser_(std::forward(source), options, alloc), + visitor_(visitor) + { + } + + void read() + { + std::error_code ec; + read(ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec,line(),column())); + } + } + + void read(std::error_code& ec) + { + parser_.reset(); + parser_.parse(visitor_, ec); + if (ec) + { + return; + } + } + + std::size_t line() const + { + return parser_.line(); + } + + std::size_t column() const + { + return parser_.column(); + } +}; + +using cbor_stream_reader = basic_cbor_reader; + +using cbor_bytes_reader = basic_cbor_reader; + +#if !defined(JSONCONS_NO_DEPRECATED) +JSONCONS_DEPRECATED_MSG("Instead, use cbor_stream_reader") typedef cbor_stream_reader cbor_reader; +JSONCONS_DEPRECATED_MSG("Instead, use cbor_bytes_reader") typedef cbor_bytes_reader cbor_buffer_reader; +#endif + +}} + +#endif diff --git a/include/jsoncons_ext/cbor/decode_cbor.hpp b/include/jsoncons_ext/cbor/decode_cbor.hpp new file mode 100644 index 0000000..ab5c913 --- /dev/null +++ b/include/jsoncons_ext/cbor/decode_cbor.hpp @@ -0,0 +1,203 @@ +// Copyright 2017 Daniel Parkerstd +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_CBOR_DECODE_CBOR_HPP +#define JSONCONS_CBOR_DECODE_CBOR_HPP + +#include +#include +#include +#include // std::enable_if +#include // std::basic_istream +#include +#include +#include +#include +#include +#include + +namespace jsoncons { +namespace cbor { + + template + typename std::enable_if::value && + type_traits::is_byte_sequence::value,T>::type + decode_cbor(const Source& v, + const cbor_decode_options& options = cbor_decode_options()) + { + jsoncons::json_decoder decoder; + auto adaptor = make_json_visitor_adaptor(decoder); + basic_cbor_reader reader(v, adaptor, options); + reader.read(); + if (!decoder.is_valid()) + { + JSONCONS_THROW(ser_error(conv_errc::conversion_failed, reader.line(), reader.column())); + } + return decoder.get_result(); + } + + template + typename std::enable_if::value && + type_traits::is_byte_sequence::value,T>::type + decode_cbor(const Source& v, + const cbor_decode_options& options = cbor_decode_options()) + { + basic_cbor_cursor cursor(v, options); + json_decoder> decoder{}; + + std::error_code ec; + T val = decode_traits::decode(cursor, decoder, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, cursor.context().line(), cursor.context().column())); + } + return val; + } + + template + typename std::enable_if::value,T>::type + decode_cbor(std::istream& is, + const cbor_decode_options& options = cbor_decode_options()) + { + jsoncons::json_decoder decoder; + auto adaptor = make_json_visitor_adaptor(decoder); + cbor_stream_reader reader(is, adaptor, options); + reader.read(); + if (!decoder.is_valid()) + { + JSONCONS_THROW(ser_error(conv_errc::conversion_failed, reader.line(), reader.column())); + } + return decoder.get_result(); + } + + template + typename std::enable_if::value,T>::type + decode_cbor(std::istream& is, + const cbor_decode_options& options = cbor_decode_options()) + { + basic_cbor_cursor cursor(is, options); + json_decoder> decoder{}; + + std::error_code ec; + T val = decode_traits::decode(cursor, decoder, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, cursor.context().line(), cursor.context().column())); + } + return val; + } + + template + typename std::enable_if::value,T>::type + decode_cbor(InputIt first, InputIt last, + const cbor_decode_options& options = cbor_decode_options()) + { + jsoncons::json_decoder decoder; + auto adaptor = make_json_visitor_adaptor(decoder); + basic_cbor_reader> reader(binary_iterator_source(first, last), adaptor, options); + reader.read(); + if (!decoder.is_valid()) + { + JSONCONS_THROW(ser_error(conv_errc::conversion_failed, reader.line(), reader.column())); + } + return decoder.get_result(); + } + + template + typename std::enable_if::value,T>::type + decode_cbor(InputIt first, InputIt last, + const cbor_decode_options& options = cbor_decode_options()) + { + basic_cbor_cursor> cursor(binary_iterator_source(first, last), options); + json_decoder> decoder{}; + + std::error_code ec; + T val = decode_traits::decode(cursor, decoder, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, cursor.context().line(), cursor.context().column())); + } + return val; + } + + // With leading allocator parameter + + template + typename std::enable_if::value && + type_traits::is_byte_sequence::value,T>::type + decode_cbor(temp_allocator_arg_t, const TempAllocator& temp_alloc, + const Source& v, + const cbor_decode_options& options = cbor_decode_options()) + { + json_decoder decoder(temp_alloc); + auto adaptor = make_json_visitor_adaptor(decoder); + basic_cbor_reader reader(v, adaptor, options, temp_alloc); + reader.read(); + if (!decoder.is_valid()) + { + JSONCONS_THROW(ser_error(conv_errc::conversion_failed, reader.line(), reader.column())); + } + return decoder.get_result(); + } + + template + typename std::enable_if::value && + type_traits::is_byte_sequence::value,T>::type + decode_cbor(temp_allocator_arg_t, const TempAllocator& temp_alloc, + const Source& v, + const cbor_decode_options& options = cbor_decode_options()) + { + basic_cbor_cursor cursor(v, options, temp_alloc); + json_decoder,TempAllocator> decoder(temp_alloc, temp_alloc); + + std::error_code ec; + T val = decode_traits::decode(cursor, decoder, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, cursor.context().line(), cursor.context().column())); + } + return val; + } + + template + typename std::enable_if::value,T>::type + decode_cbor(temp_allocator_arg_t, const TempAllocator& temp_alloc, + std::istream& is, + const cbor_decode_options& options = cbor_decode_options()) + { + json_decoder decoder(temp_alloc); + auto adaptor = make_json_visitor_adaptor(decoder); + basic_cbor_reader reader(is, adaptor, options, temp_alloc); + reader.read(); + if (!decoder.is_valid()) + { + JSONCONS_THROW(ser_error(conv_errc::conversion_failed, reader.line(), reader.column())); + } + return decoder.get_result(); + } + + template + typename std::enable_if::value,T>::type + decode_cbor(temp_allocator_arg_t, const TempAllocator& temp_alloc, + std::istream& is, + const cbor_decode_options& options = cbor_decode_options()) + { + basic_cbor_cursor cursor(is, options, temp_alloc); + json_decoder,TempAllocator> decoder(temp_alloc, temp_alloc); + + std::error_code ec; + T val = decode_traits::decode(cursor, decoder, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, cursor.context().line(), cursor.context().column())); + } + return val; + } + +} // namespace cbor +} // namespace jsoncons + +#endif diff --git a/include/jsoncons_ext/cbor/encode_cbor.hpp b/include/jsoncons_ext/cbor/encode_cbor.hpp new file mode 100644 index 0000000..8576f1c --- /dev/null +++ b/include/jsoncons_ext/cbor/encode_cbor.hpp @@ -0,0 +1,151 @@ +// Copyright 2017 Daniel Parkerstd +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_CBOR_ENCODE_CBOR_HPP +#define JSONCONS_CBOR_ENCODE_CBOR_HPP + +#include +#include +#include +#include // std::enable_if +#include // std::basic_istream +#include +#include +#include +#include +#include + +namespace jsoncons { +namespace cbor { + + // to bytes + + template + typename std::enable_if::value && + type_traits::is_back_insertable_byte_container::value,void>::type + encode_cbor(const T& j, + Container& v, + const cbor_encode_options& options = cbor_encode_options()) + { + using char_type = typename T::char_type; + basic_cbor_encoder> encoder(v, options); + auto adaptor = make_json_visitor_adaptor>(encoder); + j.dump(adaptor); + } + + template + typename std::enable_if::value && + type_traits::is_back_insertable_byte_container::value,void>::type + encode_cbor(const T& val, Container& v, + const cbor_encode_options& options = cbor_encode_options()) + { + basic_cbor_encoder> encoder(v, options); + std::error_code ec; + encode_traits::encode(val, encoder, json(), ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec)); + } + } + + // stream + + template + typename std::enable_if::value,void>::type + encode_cbor(const T& j, + std::ostream& os, + const cbor_encode_options& options = cbor_encode_options()) + { + using char_type = typename T::char_type; + cbor_stream_encoder encoder(os, options); + auto adaptor = make_json_visitor_adaptor>(encoder); + j.dump(adaptor); + } + + template + typename std::enable_if::value,void>::type + encode_cbor(const T& val, + std::ostream& os, + const cbor_encode_options& options = cbor_encode_options()) + { + cbor_stream_encoder encoder(os, options); + std::error_code ec; + encode_traits::encode(val, encoder, json(), ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec)); + } + } + + // temp_allocator_arg + + // to bytes + + template + typename std::enable_if::value && + type_traits::is_back_insertable_byte_container::value,void>::type + encode_cbor(temp_allocator_arg_t, const TempAllocator& temp_alloc, + const T& j, + Container& v, + const cbor_encode_options& options = cbor_encode_options()) + { + using char_type = typename T::char_type; + basic_cbor_encoder,TempAllocator> encoder(v, options, temp_alloc); + auto adaptor = make_json_visitor_adaptor>(encoder); + j.dump(adaptor); + } + + template + typename std::enable_if::value && + type_traits::is_back_insertable_byte_container::value,void>::type + encode_cbor(temp_allocator_arg_t, const TempAllocator& temp_alloc, + const T& val, + Container& v, + const cbor_encode_options& options = cbor_encode_options()) + { + basic_cbor_encoder,TempAllocator> encoder(v, options, temp_alloc); + std::error_code ec; + encode_traits::encode(val, encoder, json(), ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec)); + } + } + + // stream + + template + typename std::enable_if::value,void>::type + encode_cbor(temp_allocator_arg_t, const TempAllocator& temp_alloc, + const T& j, + std::ostream& os, + const cbor_encode_options& options = cbor_encode_options()) + { + using char_type = typename T::char_type; + basic_cbor_encoder encoder(os, options, temp_alloc); + auto adaptor = make_json_visitor_adaptor>(encoder); + j.dump(adaptor); + } + + template + typename std::enable_if::value,void>::type + encode_cbor(temp_allocator_arg_t, const TempAllocator& temp_alloc, + const T& val, + std::ostream& os, + const cbor_encode_options& options = cbor_encode_options()) + { + std::error_code ec; + encode_cbor(temp_allocator_arg, temp_alloc, val, os, options, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec)); + } + } + +} // namespace cbor +} // namespace jsoncons + +#endif diff --git a/include/jsoncons_ext/csv/csv.hpp b/include/jsoncons_ext/csv/csv.hpp new file mode 100644 index 0000000..9f8a9c5 --- /dev/null +++ b/include/jsoncons_ext/csv/csv.hpp @@ -0,0 +1,17 @@ +/// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_CSV_CSV_HPP +#define JSONCONS_CSV_CSV_HPP + +#include +#include +#include +#include +#include +#include + +#endif diff --git a/include/jsoncons_ext/csv/csv_cursor.hpp b/include/jsoncons_ext/csv/csv_cursor.hpp new file mode 100644 index 0000000..67d55a6 --- /dev/null +++ b/include/jsoncons_ext/csv/csv_cursor.hpp @@ -0,0 +1,358 @@ +// Copyright 2018 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_CSV_CSV_CURSOR_HPP +#define JSONCONS_CSV_CSV_CURSOR_HPP + +#include // std::allocator +#include +#include +#include +#include +#include +#include // std::basic_istream +#include +#include +#include +#include +#include +#include +#include +#include + +namespace jsoncons { namespace csv { + +template,class Allocator=std::allocator> +class basic_csv_cursor : public basic_staj_cursor, private virtual ser_context +{ +public: + using source_type = Source; + using char_type = CharT; + using allocator_type = Allocator; +private: + static constexpr size_t default_max_buffer_size = 16384; + + typedef typename std::allocator_traits:: template rebind_alloc char_allocator_type; + + text_source_adaptor source_; + basic_csv_parser parser_; + basic_staj_visitor cursor_visitor_; + + // Noncopyable and nonmoveable + basic_csv_cursor(const basic_csv_cursor&) = delete; + basic_csv_cursor& operator=(const basic_csv_cursor&) = delete; + +public: + using string_view_type = jsoncons::basic_string_view; + + // Constructors that throw parse exceptions + + template + basic_csv_cursor(Sourceable&& source, + const basic_csv_decode_options& options = basic_csv_decode_options(), + std::function err_handler = default_csv_parsing(), + const Allocator& alloc = Allocator(), + typename std::enable_if,Sourceable>::value>::type* = 0) + : source_(std::forward(source)), + parser_(options,err_handler,alloc), + cursor_visitor_(accept_all) + { + if (!done()) + { + next(); + } + } + + template + basic_csv_cursor(Sourceable&& source, + const basic_csv_decode_options& options = basic_csv_decode_options(), + std::function err_handler = default_csv_parsing(), + const Allocator& alloc = Allocator(), + typename std::enable_if,Sourceable>::value>::type* = 0) + : source_(), + parser_(options,err_handler,alloc), + cursor_visitor_(accept_all) + { + jsoncons::basic_string_view sv(std::forward(source)); + initialize_with_string_view(sv); + } + + + // Constructors that set parse error codes + template + basic_csv_cursor(Sourceable&& source, + std::error_code& ec) + : basic_csv_cursor(std::allocator_arg, Allocator(), + std::forward(source), + basic_csv_decode_options(), + default_csv_parsing(), + ec) + { + } + + template + basic_csv_cursor(Sourceable&& source, + const basic_csv_decode_options& options, + std::error_code& ec) + : basic_csv_cursor(std::allocator_arg, Allocator(), + std::forward(source), + options, + default_csv_parsing(), + ec) + { + } + + template + basic_csv_cursor(Sourceable&& source, + const basic_csv_decode_options& options, + std::function err_handler, + std::error_code& ec) + : basic_csv_cursor(std::allocator_arg, Allocator(), + std::forward(source), + options, + err_handler, + ec) + { + } + + template + basic_csv_cursor(std::allocator_arg_t, const Allocator& alloc, + Sourceable&& source, + const basic_csv_decode_options& options, + std::function err_handler, + std::error_code& ec, + typename std::enable_if,Sourceable>::value>::type* = 0) + : source_(std::forward(source)), + parser_(options,err_handler,alloc), + cursor_visitor_(accept_all) + { + if (!done()) + { + next(ec); + } + } + + template + basic_csv_cursor(std::allocator_arg_t, const Allocator& alloc, + Sourceable&& source, + const basic_csv_decode_options& options, + std::function err_handler, + std::error_code& ec, + typename std::enable_if,Sourceable>::value>::type* = 0) + : source_(), + parser_(options,err_handler,alloc), + cursor_visitor_(accept_all) + { + jsoncons::basic_string_view sv(std::forward(source)); + initialize_with_string_view(sv, ec); + } + + template + typename std::enable_if,Sourceable>::value>::type + reset(Sourceable&& source) + { + source_ = std::forward(source); + parser_.reinitialize(); + cursor_visitor_.reset(); + if (!done()) + { + next(); + } + } + + template + typename std::enable_if,Sourceable>::value>::type + reset(Sourceable&& source) + { + source_ = {}; + parser_.reinitialize(); + cursor_visitor_.reset(); + initialize_with_string_view(std::forward(source)); + } + + template + typename std::enable_if,Sourceable>::value>::type + reset(Sourceable&& source, std::error_code& ec) + { + source_ = std::forward(source); + parser_.reinitialize(); + cursor_visitor_.reset(); + if (!done()) + { + next(ec); + } + } + + template + typename std::enable_if,Sourceable>::value>::type + reset(Sourceable&& source, std::error_code& ec) + { + source_ = {}; + parser_.reinitialize(); + initialize_with_string_view(std::forward(source), ec); + } + + bool done() const override + { + return parser_.done(); + } + + const basic_staj_event& current() const override + { + return cursor_visitor_.event(); + } + + void read_to(basic_json_visitor& visitor) override + { + std::error_code ec; + read_to(visitor, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec,parser_.line(),parser_.column())); + } + } + + void read_to(basic_json_visitor& visitor, + std::error_code& ec) override + { + if (staj_to_saj_event(cursor_visitor_.event(), visitor, *this, ec)) + { + read_next(visitor, ec); + } + } + + void next() override + { + std::error_code ec; + next(ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec,parser_.line(),parser_.column())); + } + } + + void next(std::error_code& ec) override + { + read_next(ec); + } + + static bool accept_all(const basic_staj_event&, const ser_context&) + { + return true; + } + + const ser_context& context() const override + { + return *this; + } + + bool eof() const + { + return parser_.source_exhausted() && source_.eof(); + } + + std::size_t line() const override + { + return parser_.line(); + } + + std::size_t column() const override + { + return parser_.column(); + } + + friend + basic_staj_filter_view operator|(basic_csv_cursor& cursor, + std::function&, const ser_context&)> pred) + { + return basic_staj_filter_view(cursor, pred); + } + +#if !defined(JSONCONS_NO_DEPRECATED) + + JSONCONS_DEPRECATED_MSG("Instead, use read_to(basic_json_visitor&)") + void read(basic_json_visitor& visitor) + { + read_to(visitor); + } + + JSONCONS_DEPRECATED_MSG("Instead, use read_to(basic_json_visitor&, std::error_code&)") + void read(basic_json_visitor& visitor, + std::error_code& ec) + { + read_to(visitor, ec); + } +#endif +private: + + void initialize_with_string_view(string_view_type sv) + { + auto r = unicode_traits::detect_json_encoding(sv.data(), sv.size()); + if (!(r.encoding == unicode_traits::encoding_kind::utf8 || r.encoding == unicode_traits::encoding_kind::undetected)) + { + JSONCONS_THROW(ser_error(json_errc::illegal_unicode_character,parser_.line(),parser_.column())); + } + std::size_t offset = (r.ptr - sv.data()); + parser_.update(sv.data()+offset,sv.size()-offset); + if (!done()) + { + next(); + } + } + + void initialize_with_string_view(string_view_type sv, std::error_code& ec) + { + auto r = unicode_traits::detect_encoding_from_bom(sv.data(), sv.size()); + if (!(r.encoding == unicode_traits::encoding_kind::utf8 || r.encoding == unicode_traits::encoding_kind::undetected)) + { + ec = json_errc::illegal_unicode_character; + return; + } + std::size_t offset = (r.ptr - sv.data()); + parser_.update(sv.data()+offset,sv.size()-offset); + if (!done()) + { + next(ec); + } + } + + void read_next(std::error_code& ec) + { + read_next(cursor_visitor_, ec); + } + + void read_next(basic_json_visitor& visitor, std::error_code& ec) + { + parser_.restart(); + while (!parser_.stopped()) + { + if (parser_.source_exhausted()) + { + auto s = source_.read_buffer(ec); + if (ec) return; + if (s.size() > 0) + { + parser_.update(s.data(),s.size()); + } + } + parser_.parse_some(visitor, ec); + if (ec) return; + } + } +}; + +using csv_stream_cursor = basic_csv_cursor>; +using csv_string_cursor = basic_csv_cursor>; +using wcsv_stream_cursor = basic_csv_cursor>; +using wcsv_string_cursor = basic_csv_cursor>; + +using csv_cursor = basic_csv_cursor; +using wcsv_cursor = basic_csv_cursor; + +}} + +#endif + diff --git a/include/jsoncons_ext/csv/csv_encoder.hpp b/include/jsoncons_ext/csv/csv_encoder.hpp new file mode 100644 index 0000000..49c1a3d --- /dev/null +++ b/include/jsoncons_ext/csv/csv_encoder.hpp @@ -0,0 +1,954 @@ +// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_CSV_CSV_ENCODER_HPP +#define JSONCONS_CSV_CSV_ENCODER_HPP + +#include // std::array +#include +#include +#include +#include // std::move +#include // std::unordered_map +#include // std::allocator +#include // std::numeric_limits +#include +#include +#include +#include +#include + +namespace jsoncons { namespace csv { + +template,class Allocator=std::allocator> +class basic_csv_encoder final : public basic_json_visitor +{ +public: + using char_type = CharT; + using typename basic_json_visitor::string_view_type; + using sink_type = Sink; + + using allocator_type = Allocator; + using char_allocator_type = typename std::allocator_traits:: template rebind_alloc; + using string_type = std::basic_string, char_allocator_type>; + using string_allocator_type = typename std::allocator_traits:: template rebind_alloc; + using string_string_allocator_type = typename std::allocator_traits:: template rebind_alloc>; + +private: + static jsoncons::basic_string_view null_constant() + { + static jsoncons::basic_string_view k = JSONCONS_STRING_VIEW_CONSTANT(CharT,"null"); + return k; + } + static jsoncons::basic_string_view true_constant() + { + static jsoncons::basic_string_view k = JSONCONS_STRING_VIEW_CONSTANT(CharT,"true"); + return k; + } + static jsoncons::basic_string_view false_constant() + { + static jsoncons::basic_string_view k = JSONCONS_STRING_VIEW_CONSTANT(CharT,"false"); + return k; + } + + enum class stack_item_kind + { + row_mapping, + column_mapping, + object, + row, + column, + object_multi_valued_field, + row_multi_valued_field, + column_multi_valued_field + }; + + struct stack_item + { + stack_item_kind item_kind_; + std::size_t count_; + + stack_item(stack_item_kind item_kind) noexcept + : item_kind_(item_kind), count_(0) + { + } + + bool is_object() const + { + return item_kind_ == stack_item_kind::object; + } + + stack_item_kind item_kind() const + { + return item_kind_; + } + }; + + Sink sink_; + const basic_csv_encode_options options_; + allocator_type alloc_; + + std::vector stack_; + jsoncons::detail::write_double fp_; + std::vector strings_buffer_; + + std::unordered_map,std::equal_to,string_string_allocator_type> buffered_line_; + string_type name_; + std::size_t column_index_; + std::vector row_counts_; + + // Noncopyable and nonmoveable + basic_csv_encoder(const basic_csv_encoder&) = delete; + basic_csv_encoder& operator=(const basic_csv_encoder&) = delete; +public: + basic_csv_encoder(Sink&& sink, + const Allocator& alloc = Allocator()) + : basic_csv_encoder(std::forward(sink), basic_csv_encode_options(), alloc) + { + } + + basic_csv_encoder(Sink&& sink, + const basic_csv_encode_options& options, + const Allocator& alloc = Allocator()) + : sink_(std::forward(sink)), + options_(options), + alloc_(alloc), + stack_(), + fp_(options.float_format(), options.precision()), + column_index_(0) + { + jsoncons::csv::detail::parse_column_names(options.column_names(), strings_buffer_); + } + + ~basic_csv_encoder() noexcept + { + JSONCONS_TRY + { + sink_.flush(); + } + JSONCONS_CATCH(...) + { + } + } + + void reset() + { + stack_.clear(); + strings_buffer_.clear(); + buffered_line_.clear(); + name_.clear(); + column_index_ = 0; + row_counts_.clear(); + } + + void reset(Sink&& sink) + { + sink_ = std::move(sink); + reset(); + } + +private: + + template + void escape_string(const CharT* s, + std::size_t length, + CharT quote_char, CharT quote_escape_char, + AnyWriter& sink) + { + const CharT* begin = s; + const CharT* end = s + length; + for (const CharT* it = begin; it != end; ++it) + { + CharT c = *it; + if (c == quote_char) + { + sink.push_back(quote_escape_char); + sink.push_back(quote_char); + } + else + { + sink.push_back(c); + } + } + } + + void visit_flush() override + { + sink_.flush(); + } + + bool visit_begin_object(semantic_tag, const ser_context&, std::error_code& ec) override + { + if (stack_.empty()) + { + stack_.emplace_back(stack_item_kind::column_mapping); + return true; + } + switch (stack_.back().item_kind_) + { + case stack_item_kind::row_mapping: + stack_.emplace_back(stack_item_kind::object); + return true; + default: // error + ec = csv_errc::source_error; + return false; + } + } + + bool visit_end_object(const ser_context&, std::error_code&) override + { + JSONCONS_ASSERT(!stack_.empty()); + + switch (stack_.back().item_kind_) + { + case stack_item_kind::object: + if (stack_[0].count_ == 0) + { + for (std::size_t i = 0; i < strings_buffer_.size(); ++i) + { + if (i > 0) + { + sink_.push_back(options_.field_delimiter()); + } + sink_.append(strings_buffer_[i].data(), + strings_buffer_[i].length()); + } + sink_.append(options_.line_delimiter().data(), + options_.line_delimiter().length()); + } + for (std::size_t i = 0; i < strings_buffer_.size(); ++i) + { + if (i > 0) + { + sink_.push_back(options_.field_delimiter()); + } + auto it = buffered_line_.find(strings_buffer_[i]); + if (it != buffered_line_.end()) + { + sink_.append(it->second.data(),it->second.length()); + it->second.clear(); + } + } + sink_.append(options_.line_delimiter().data(), options_.line_delimiter().length()); + break; + case stack_item_kind::column_mapping: + { + for (const auto& item : strings_buffer_) + { + sink_.append(item.data(), item.size()); + sink_.append(options_.line_delimiter().data(), options_.line_delimiter().length()); + } + break; + } + default: + break; + } + stack_.pop_back(); + if (!stack_.empty()) + { + end_value(); + } + return true; + } + + bool visit_begin_array(semantic_tag, const ser_context&, std::error_code& ec) override + { + if (stack_.empty()) + { + stack_.emplace_back(stack_item_kind::row_mapping); + return true; + } + switch (stack_.back().item_kind_) + { + case stack_item_kind::row_mapping: + stack_.emplace_back(stack_item_kind::row); + if (stack_[0].count_ == 0) + { + for (std::size_t i = 0; i < strings_buffer_.size(); ++i) + { + if (i > 0) + { + sink_.push_back(options_.field_delimiter()); + } + sink_.append(strings_buffer_[i].data(),strings_buffer_[i].length()); + } + if (strings_buffer_.size() > 0) + { + sink_.append(options_.line_delimiter().data(), + options_.line_delimiter().length()); + } + } + return true; + case stack_item_kind::object: + stack_.emplace_back(stack_item_kind::object_multi_valued_field); + return true; + case stack_item_kind::column_mapping: + stack_.emplace_back(stack_item_kind::column); + row_counts_.push_back(1); + if (strings_buffer_.size() <= row_counts_.back()) + { + strings_buffer_.emplace_back(); + } + return true; + case stack_item_kind::column: + { + if (strings_buffer_.size() <= row_counts_.back()) + { + strings_buffer_.emplace_back(); + } + jsoncons::string_sink> bo(strings_buffer_[row_counts_.back()]); + begin_value(bo); + stack_.emplace_back(stack_item_kind::column_multi_valued_field); + return true; + } + case stack_item_kind::row: + begin_value(sink_); + stack_.emplace_back(stack_item_kind::row_multi_valued_field); + return true; + default: // error + ec = csv_errc::source_error; + return false; + } + } + + bool visit_end_array(const ser_context&, std::error_code&) override + { + JSONCONS_ASSERT(!stack_.empty()); + switch (stack_.back().item_kind_) + { + case stack_item_kind::row: + sink_.append(options_.line_delimiter().data(), + options_.line_delimiter().length()); + break; + case stack_item_kind::column: + ++column_index_; + break; + default: + break; + } + stack_.pop_back(); + + if (!stack_.empty()) + { + end_value(); + } + return true; + } + + bool visit_key(const string_view_type& name, const ser_context&, std::error_code&) override + { + JSONCONS_ASSERT(!stack_.empty()); + switch (stack_.back().item_kind_) + { + case stack_item_kind::object: + { + name_ = string_type(name); + buffered_line_[string_type(name)] = std::basic_string(); + if (stack_[0].count_ == 0 && options_.column_names().size() == 0) + { + strings_buffer_.emplace_back(name); + } + break; + } + case stack_item_kind::column_mapping: + { + if (strings_buffer_.empty()) + { + strings_buffer_.emplace_back(name); + } + else + { + strings_buffer_[0].push_back(options_.field_delimiter()); + strings_buffer_[0].append(string_type(name)); + } + break; + } + default: + break; + } + return true; + } + + bool visit_null(semantic_tag, const ser_context&, std::error_code&) override + { + JSONCONS_ASSERT(!stack_.empty()); + switch (stack_.back().item_kind_) + { + case stack_item_kind::object: + case stack_item_kind::object_multi_valued_field: + { + auto it = buffered_line_.find(name_); + if (it != buffered_line_.end()) + { + std::basic_string s; + jsoncons::string_sink> bo(s); + write_null_value(bo); + bo.flush(); + if (!it->second.empty() && options_.subfield_delimiter() != char_type()) + { + it->second.push_back(options_.subfield_delimiter()); + } + it->second.append(s); + } + break; + } + case stack_item_kind::row: + case stack_item_kind::row_multi_valued_field: + write_null_value(sink_); + break; + case stack_item_kind::column: + { + if (strings_buffer_.size() <= row_counts_.back()) + { + strings_buffer_.emplace_back(); + } + jsoncons::string_sink> bo(strings_buffer_[row_counts_.back()]); + write_null_value(bo); + break; + } + case stack_item_kind::column_multi_valued_field: + { + jsoncons::string_sink> bo(strings_buffer_[row_counts_.back()]); + write_null_value(bo); + break; + } + default: + break; + } + return true; + } + + bool visit_string(const string_view_type& sv, semantic_tag, const ser_context&, std::error_code&) override + { + JSONCONS_ASSERT(!stack_.empty()); + switch (stack_.back().item_kind_) + { + case stack_item_kind::object: + case stack_item_kind::object_multi_valued_field: + { + auto it = buffered_line_.find(name_); + if (it != buffered_line_.end()) + { + std::basic_string s; + jsoncons::string_sink> bo(s); + write_string_value(sv,bo); + bo.flush(); + if (!it->second.empty() && options_.subfield_delimiter() != char_type()) + { + it->second.push_back(options_.subfield_delimiter()); + } + it->second.append(s); + } + break; + } + case stack_item_kind::row: + case stack_item_kind::row_multi_valued_field: + write_string_value(sv,sink_); + break; + case stack_item_kind::column: + { + if (strings_buffer_.size() <= row_counts_.back()) + { + strings_buffer_.emplace_back(); + } + jsoncons::string_sink> bo(strings_buffer_[row_counts_.back()]); + write_string_value(sv,bo); + break; + } + case stack_item_kind::column_multi_valued_field: + { + jsoncons::string_sink> bo(strings_buffer_[row_counts_.back()]); + write_string_value(sv,bo); + break; + } + default: + break; + } + return true; + } + + bool visit_byte_string(const byte_string_view& b, + semantic_tag tag, + const ser_context& context, + std::error_code& ec) override + { + byte_string_chars_format encoding_hint; + switch (tag) + { + case semantic_tag::base16: + encoding_hint = byte_string_chars_format::base16; + break; + case semantic_tag::base64: + encoding_hint = byte_string_chars_format::base64; + break; + case semantic_tag::base64url: + encoding_hint = byte_string_chars_format::base64url; + break; + default: + encoding_hint = byte_string_chars_format::none; + break; + } + byte_string_chars_format format = jsoncons::detail::resolve_byte_string_chars_format(encoding_hint,byte_string_chars_format::none,byte_string_chars_format::base64url); + + std::basic_string s; + switch (format) + { + case byte_string_chars_format::base16: + { + encode_base16(b.begin(),b.end(),s); + visit_string(s, semantic_tag::none, context, ec); + break; + } + case byte_string_chars_format::base64: + { + encode_base64(b.begin(),b.end(),s); + visit_string(s, semantic_tag::none, context, ec); + break; + } + case byte_string_chars_format::base64url: + { + encode_base64url(b.begin(),b.end(),s); + visit_string(s, semantic_tag::none, context, ec); + break; + } + default: + { + JSONCONS_UNREACHABLE(); + } + } + + return true; + } + + bool visit_double(double val, + semantic_tag, + const ser_context& context, + std::error_code& ec) override + { + JSONCONS_ASSERT(!stack_.empty()); + switch (stack_.back().item_kind_) + { + case stack_item_kind::object: + case stack_item_kind::object_multi_valued_field: + { + auto it = buffered_line_.find(name_); + if (it != buffered_line_.end()) + { + std::basic_string s; + jsoncons::string_sink> bo(s); + write_double_value(val, context, bo, ec); + bo.flush(); + if (!it->second.empty() && options_.subfield_delimiter() != char_type()) + { + it->second.push_back(options_.subfield_delimiter()); + } + it->second.append(s); + } + break; + } + case stack_item_kind::row: + case stack_item_kind::row_multi_valued_field: + write_double_value(val, context, sink_, ec); + break; + case stack_item_kind::column: + { + if (strings_buffer_.size() <= row_counts_.back()) + { + strings_buffer_.emplace_back(); + } + jsoncons::string_sink> bo(strings_buffer_[row_counts_.back()]); + write_double_value(val, context, bo, ec); + break; + } + case stack_item_kind::column_multi_valued_field: + { + jsoncons::string_sink> bo(strings_buffer_[row_counts_.back()]); + write_double_value(val, context, bo, ec); + break; + } + default: + break; + } + return true; + } + + bool visit_int64(int64_t val, + semantic_tag, + const ser_context&, + std::error_code&) override + { + JSONCONS_ASSERT(!stack_.empty()); + switch (stack_.back().item_kind_) + { + case stack_item_kind::object: + case stack_item_kind::object_multi_valued_field: + { + auto it = buffered_line_.find(name_); + if (it != buffered_line_.end()) + { + std::basic_string s; + jsoncons::string_sink> bo(s); + write_int64_value(val,bo); + bo.flush(); + if (!it->second.empty() && options_.subfield_delimiter() != char_type()) + { + it->second.push_back(options_.subfield_delimiter()); + } + it->second.append(s); + } + break; + } + case stack_item_kind::row: + case stack_item_kind::row_multi_valued_field: + write_int64_value(val,sink_); + break; + case stack_item_kind::column: + { + if (strings_buffer_.size() <= row_counts_.back()) + { + strings_buffer_.emplace_back(); + } + jsoncons::string_sink> bo(strings_buffer_[row_counts_.back()]); + write_int64_value(val, bo); + break; + } + case stack_item_kind::column_multi_valued_field: + { + jsoncons::string_sink> bo(strings_buffer_[row_counts_.back()]); + write_int64_value(val, bo); + break; + } + default: + break; + } + return true; + } + + bool visit_uint64(uint64_t val, + semantic_tag, + const ser_context&, + std::error_code&) override + { + JSONCONS_ASSERT(!stack_.empty()); + switch (stack_.back().item_kind_) + { + case stack_item_kind::object: + case stack_item_kind::object_multi_valued_field: + { + auto it = buffered_line_.find(name_); + if (it != buffered_line_.end()) + { + std::basic_string s; + jsoncons::string_sink> bo(s); + write_uint64_value(val, bo); + bo.flush(); + if (!it->second.empty() && options_.subfield_delimiter() != char_type()) + { + it->second.push_back(options_.subfield_delimiter()); + } + it->second.append(s); + } + break; + } + case stack_item_kind::row: + case stack_item_kind::row_multi_valued_field: + write_uint64_value(val,sink_); + break; + case stack_item_kind::column: + { + if (strings_buffer_.size() <= row_counts_.back()) + { + strings_buffer_.emplace_back(); + } + jsoncons::string_sink> bo(strings_buffer_[row_counts_.back()]); + write_uint64_value(val, bo); + break; + } + case stack_item_kind::column_multi_valued_field: + { + jsoncons::string_sink> bo(strings_buffer_[row_counts_.back()]); + write_uint64_value(val, bo); + break; + } + default: + break; + } + return true; + } + + bool visit_bool(bool val, semantic_tag, const ser_context&, std::error_code&) override + { + JSONCONS_ASSERT(!stack_.empty()); + switch (stack_.back().item_kind_) + { + case stack_item_kind::object: + case stack_item_kind::object_multi_valued_field: + { + auto it = buffered_line_.find(name_); + if (it != buffered_line_.end()) + { + std::basic_string s; + jsoncons::string_sink> bo(s); + write_bool_value(val,bo); + bo.flush(); + if (!it->second.empty() && options_.subfield_delimiter() != char_type()) + { + it->second.push_back(options_.subfield_delimiter()); + } + it->second.append(s); + } + break; + } + case stack_item_kind::row: + case stack_item_kind::row_multi_valued_field: + write_bool_value(val,sink_); + break; + case stack_item_kind::column: + { + if (strings_buffer_.size() <= row_counts_.back()) + { + strings_buffer_.emplace_back(); + } + jsoncons::string_sink> bo(strings_buffer_[row_counts_.back()]); + write_bool_value(val, bo); + break; + } + case stack_item_kind::column_multi_valued_field: + { + jsoncons::string_sink> bo(strings_buffer_[row_counts_.back()]); + write_bool_value(val, bo); + break; + } + default: + break; + } + return true; + } + + template + bool do_string_value(const CharT* s, std::size_t length, AnyWriter& sink) + { + bool quote = false; + if (options_.quote_style() == quote_style_kind::all || options_.quote_style() == quote_style_kind::nonnumeric || + (options_.quote_style() == quote_style_kind::minimal && + (std::char_traits::find(s, length, options_.field_delimiter()) != nullptr || std::char_traits::find(s, length, options_.quote_char()) != nullptr))) + { + quote = true; + sink.push_back(options_.quote_char()); + } + escape_string(s, length, options_.quote_char(), options_.quote_escape_char(), sink); + if (quote) + { + sink.push_back(options_.quote_char()); + } + + return true; + } + + template + void write_string_value(const string_view_type& value, AnyWriter& sink) + { + begin_value(sink); + do_string_value(value.data(),value.length(),sink); + end_value(); + } + + template + void write_double_value(double val, const ser_context& context, AnyWriter& sink, std::error_code& ec) + { + begin_value(sink); + + if (!std::isfinite(val)) + { + if ((std::isnan)(val)) + { + if (options_.enable_nan_to_num()) + { + sink.append(options_.nan_to_num().data(), options_.nan_to_num().length()); + } + else if (options_.enable_nan_to_str()) + { + visit_string(options_.nan_to_str(), semantic_tag::none, context, ec); + } + else + { + sink.append(null_constant().data(), null_constant().size()); + } + } + else if (val == std::numeric_limits::infinity()) + { + if (options_.enable_inf_to_num()) + { + sink.append(options_.inf_to_num().data(), options_.inf_to_num().length()); + } + else if (options_.enable_inf_to_str()) + { + visit_string(options_.inf_to_str(), semantic_tag::none, context, ec); + } + else + { + sink.append(null_constant().data(), null_constant().size()); + } + } + else + { + if (options_.enable_neginf_to_num()) + { + sink.append(options_.neginf_to_num().data(), options_.neginf_to_num().length()); + } + else if (options_.enable_neginf_to_str()) + { + visit_string(options_.neginf_to_str(), semantic_tag::none, context, ec); + } + else + { + sink.append(null_constant().data(), null_constant().size()); + } + } + } + else + { + fp_(val, sink); + } + + end_value(); + + } + + template + void write_int64_value(int64_t val, AnyWriter& sink) + { + begin_value(sink); + + jsoncons::detail::from_integer(val,sink); + + end_value(); + } + + template + void write_uint64_value(uint64_t val, AnyWriter& sink) + { + begin_value(sink); + + jsoncons::detail::from_integer(val,sink); + + end_value(); + } + + template + void write_bool_value(bool val, AnyWriter& sink) + { + begin_value(sink); + + if (val) + { + sink.append(true_constant().data(), true_constant().size()); + } + else + { + sink.append(false_constant().data(), false_constant().size()); + } + + end_value(); + } + + template + bool write_null_value(AnyWriter& sink) + { + begin_value(sink); + sink.append(null_constant().data(), null_constant().size()); + end_value(); + return true; + } + + template + void begin_value(AnyWriter& sink) + { + JSONCONS_ASSERT(!stack_.empty()); + switch (stack_.back().item_kind_) + { + case stack_item_kind::row: + if (stack_.back().count_ > 0) + { + sink.push_back(options_.field_delimiter()); + } + break; + case stack_item_kind::column: + { + if (row_counts_.size() >= 3) + { + for (std::size_t i = row_counts_.size()-2; i-- > 0;) + { + if (row_counts_[i] <= row_counts_.back()) + { + sink.push_back(options_.field_delimiter()); + } + else + { + break; + } + } + } + if (column_index_ > 0) + { + sink.push_back(options_.field_delimiter()); + } + break; + } + case stack_item_kind::row_multi_valued_field: + case stack_item_kind::column_multi_valued_field: + if (stack_.back().count_ > 0 && options_.subfield_delimiter() != char_type()) + { + sink.push_back(options_.subfield_delimiter()); + } + break; + default: + break; + } + } + + void end_value() + { + JSONCONS_ASSERT(!stack_.empty()); + switch(stack_.back().item_kind_) + { + case stack_item_kind::row: + { + ++stack_.back().count_; + break; + } + case stack_item_kind::column: + { + ++row_counts_.back(); + break; + } + default: + ++stack_.back().count_; + break; + } + } +}; + +using csv_stream_encoder = basic_csv_encoder; +using csv_string_encoder = basic_csv_encoder>; +using csv_wstream_encoder = basic_csv_encoder; +using wcsv_string_encoder = basic_csv_encoder>; + +#if !defined(JSONCONS_NO_DEPRECATED) +template, class Allocator = std::allocator> +using basic_csv_serializer = basic_csv_encoder; + +JSONCONS_DEPRECATED_MSG("Instead, use csv_stream_encoder") typedef csv_stream_encoder csv_serializer; +JSONCONS_DEPRECATED_MSG("Instead, use csv_string_encoder") typedef csv_string_encoder csv_string_serializer; +JSONCONS_DEPRECATED_MSG("Instead, use csv_stream_encoder") typedef csv_stream_encoder csv_serializer; +JSONCONS_DEPRECATED_MSG("Instead, use csv_string_encoder") typedef csv_string_encoder csv_string_serializer; +JSONCONS_DEPRECATED_MSG("Instead, use csv_stream_encoder") typedef csv_stream_encoder csv_encoder; +JSONCONS_DEPRECATED_MSG("Instead, use wcsv_stream_encoder") typedef csv_stream_encoder wcsv_encoder; +#endif + +}} + +#endif diff --git a/include/jsoncons_ext/csv/csv_error.hpp b/include/jsoncons_ext/csv/csv_error.hpp new file mode 100644 index 0000000..30255dd --- /dev/null +++ b/include/jsoncons_ext/csv/csv_error.hpp @@ -0,0 +1,85 @@ +/// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_CSV_CSV_ERROR_HPP +#define JSONCONS_CSV_CSV_ERROR_HPP + +#include +#include + +namespace jsoncons { namespace csv { + + enum class csv_errc : int + { + success = 0, + unexpected_eof = 1, + source_error, + expected_quote, + syntax_error, + invalid_parse_state, + invalid_escaped_char, + unexpected_char_between_fields + }; + +#if !defined(JSONCONS_NO_DEPRECATED) +JSONCONS_DEPRECATED_MSG("Instead, use csv_errc") typedef csv_errc csv_parser_errc; +#endif + +class csv_error_category_impl + : public std::error_category +{ +public: + const char* name() const noexcept override + { + return "jsoncons/csv"; + } + std::string message(int ev) const override + { + switch (static_cast(ev)) + { + case csv_errc::unexpected_eof: + return "Unexpected end of file"; + case csv_errc::source_error: + return "Source error"; + case csv_errc::expected_quote: + return "Expected quote character"; + case csv_errc::syntax_error: + return "CSV syntax error"; + case csv_errc::invalid_parse_state: + return "Invalid CSV parser state"; + case csv_errc::invalid_escaped_char: + return "Invalid character following quote escape character"; + case csv_errc::unexpected_char_between_fields: + return "Unexpected character between fields"; + default: + return "Unknown CSV parser error"; + } + } +}; + +inline +const std::error_category& csv_error_category() +{ + static csv_error_category_impl instance; + return instance; +} + +inline +std::error_code make_error_code(csv_errc result) +{ + return std::error_code(static_cast(result),csv_error_category()); +} + +}} + +namespace std { + template<> + struct is_error_code_enum : public true_type + { + }; +} + +#endif diff --git a/include/jsoncons_ext/csv/csv_options.hpp b/include/jsoncons_ext/csv/csv_options.hpp new file mode 100644 index 0000000..8bd2e22 --- /dev/null +++ b/include/jsoncons_ext/csv/csv_options.hpp @@ -0,0 +1,973 @@ +// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_CSV_CSV_OPTIONS_HPP +#define JSONCONS_CSV_CSV_OPTIONS_HPP + +#include +#include +#include // std::pair +#include // std::unordered_map +#include +#include // std::numeric_limits +#include +#include + +namespace jsoncons { namespace csv { + +enum class csv_column_type : uint8_t +{ + string_t,integer_t,float_t,boolean_t,repeat_t +}; + +enum class quote_style_kind : uint8_t +{ + minimal,all,nonnumeric,none +}; + +enum class csv_mapping_kind : uint8_t +{ + n_rows = 1, + n_objects, + m_columns +}; + +#if !defined(JSONCONS_NO_DEPRECATED) +using mapping_kind = csv_mapping_kind; +JSONCONS_DEPRECATED_MSG("Instead, use quote_style_kind") typedef quote_style_kind quote_styles; +JSONCONS_DEPRECATED_MSG("Instead, use quote_style_kind") typedef quote_style_kind quote_style_type; +JSONCONS_DEPRECATED_MSG("Instead, use csv_mapping_kind") typedef csv_mapping_kind mapping_type; +#endif + +enum class column_state {sequence,label}; + +struct csv_type_info +{ + csv_type_info() = default; + csv_type_info(const csv_type_info&) = default; + csv_type_info(csv_type_info&&) = default; + + csv_type_info(csv_column_type ctype, std::size_t lev, std::size_t repcount = 0) noexcept + { + col_type = ctype; + level = lev; + rep_count = repcount; + } + + csv_column_type col_type; + std::size_t level; + std::size_t rep_count; +}; + +namespace detail { + +template +void parse_column_names(const std::basic_string& names, + Container& cont) +{ + column_state state = column_state::sequence; + typename Container::value_type buffer(cont.get_allocator()); + + auto p = names.begin(); + while (p != names.end()) + { + switch (state) + { + case column_state::sequence: + { + switch (*p) + { + case ' ': case '\t':case '\r': case '\n': + ++p; + break; + default: + buffer.clear(); + state = column_state::label; + break; + } + break; + } + case column_state::label: + { + switch (*p) + { + case ',': + cont.push_back(buffer); + buffer.clear(); + ++p; + state = column_state::sequence; + break; + default: + buffer.push_back(*p); + ++p; + break; + } + break; + } + } + } + if (state == column_state::label) + { + cont.push_back(buffer); + buffer.clear(); + } +} + +template +void parse_column_types(const std::basic_string& types, + Container& column_types) +{ + const std::map,csv_column_type> type_dictionary = + { + + {JSONCONS_STRING_VIEW_CONSTANT(CharT,"string"),csv_column_type::string_t}, + {JSONCONS_STRING_VIEW_CONSTANT(CharT,"integer"),csv_column_type::integer_t}, + {JSONCONS_STRING_VIEW_CONSTANT(CharT,"float"),csv_column_type::float_t}, + {JSONCONS_STRING_VIEW_CONSTANT(CharT,"boolean"),csv_column_type::boolean_t} + }; + + column_state state = column_state::sequence; + int depth = 0; + std::basic_string buffer; + + auto p = types.begin(); + while (p != types.end()) + { + switch (state) + { + case column_state::sequence: + { + switch (*p) + { + case ' ': case '\t':case '\r': case '\n': + ++p; + break; + case '[': + ++depth; + ++p; + break; + case ']': + JSONCONS_ASSERT(depth > 0); + --depth; + ++p; + break; + case '*': + { + JSONCONS_ASSERT(column_types.size() != 0); + std::size_t offset = 0; + std::size_t level = column_types.size() > 0 ? column_types.back().level: 0; + if (level > 0) + { + for (auto it = column_types.rbegin(); + it != column_types.rend() && level == it->level; + ++it) + { + ++offset; + } + } + else + { + offset = 1; + } + column_types.emplace_back(csv_column_type::repeat_t,depth,offset); + ++p; + break; + } + default: + buffer.clear(); + state = column_state::label; + break; + } + break; + } + case column_state::label: + { + switch (*p) + { + case '*': + { + auto it = type_dictionary.find(buffer); + if (it != type_dictionary.end()) + { + column_types.emplace_back(it->second,depth); + buffer.clear(); + } + else + { + JSONCONS_ASSERT(false); + } + state = column_state::sequence; + break; + } + case ',': + { + auto it = type_dictionary.find(buffer); + if (it != type_dictionary.end()) + { + column_types.emplace_back(it->second,depth); + buffer.clear(); + } + else + { + JSONCONS_ASSERT(false); + } + ++p; + state = column_state::sequence; + break; + } + case ']': + { + JSONCONS_ASSERT(depth > 0); + auto it = type_dictionary.find(buffer); + if (it != type_dictionary.end()) + { + column_types.emplace_back(it->second,depth); + buffer.clear(); + } + else + { + JSONCONS_ASSERT(false); + } + --depth; + ++p; + state = column_state::sequence; + break; + } + default: + { + buffer.push_back(*p); + ++p; + break; + } + } + break; + } + } + } + if (state == column_state::label) + { + auto it = type_dictionary.find(buffer); + if (it != type_dictionary.end()) + { + column_types.emplace_back(it->second,depth); + buffer.clear(); + } + else + { + JSONCONS_ASSERT(false); + } + } +} + +} // detail + +template +class basic_csv_options; + +template +class basic_csv_options_common +{ + friend class basic_csv_options; +public: + using char_type = CharT; + using string_type = std::basic_string; +private: + char_type field_delimiter_; + char_type quote_char_; + char_type quote_escape_char_; + char_type subfield_delimiter_; + + bool enable_nan_to_num_:1; + bool enable_inf_to_num_:1; + bool enable_neginf_to_num_:1; + bool enable_nan_to_str_:1; + bool enable_inf_to_str_:1; + bool enable_neginf_to_str_:1; + bool enable_str_to_nan_:1; + bool enable_str_to_inf_:1; + bool enable_str_to_neginf_:1; + + string_type nan_to_num_; + string_type inf_to_num_; + string_type neginf_to_num_; + string_type nan_to_str_; + string_type inf_to_str_; + string_type neginf_to_str_; + string_type column_names_; + +protected: + basic_csv_options_common() + : field_delimiter_(','), + quote_char_('\"'), + quote_escape_char_('\"'), + subfield_delimiter_(char_type()), + enable_nan_to_num_(false), + enable_inf_to_num_(false), + enable_neginf_to_num_(false), + enable_nan_to_str_(false), + enable_inf_to_str_(false), + enable_neginf_to_str_(false), + enable_str_to_nan_(false), + enable_str_to_inf_(false), + enable_str_to_neginf_(false) + { + } + + basic_csv_options_common(const basic_csv_options_common&) = default; + basic_csv_options_common& operator=(const basic_csv_options_common&) = default; + + virtual ~basic_csv_options_common() noexcept = default; +public: + + char_type field_delimiter() const + { + return field_delimiter_; + } + + const char_type subfield_delimiter() const + { + return subfield_delimiter_; + } + + char_type quote_char() const + { + return quote_char_; + } + + char_type quote_escape_char() const + { + return quote_escape_char_; + } + + string_type column_names() const + { + return column_names_; + } + + bool enable_nan_to_num() const + { + return enable_nan_to_num_; + } + + bool enable_inf_to_num() const + { + return enable_inf_to_num_; + } + + bool enable_neginf_to_num() const + { + return enable_neginf_to_num_ || enable_inf_to_num_; + } + + bool enable_nan_to_str() const + { + return enable_nan_to_str_; + } + + bool enable_str_to_nan() const + { + return enable_str_to_nan_; + } + + bool enable_inf_to_str() const + { + return enable_inf_to_str_; + } + + bool enable_str_to_inf() const + { + return enable_str_to_inf_; + } + + bool enable_neginf_to_str() const + { + return enable_neginf_to_str_ || enable_inf_to_str_; + } + + bool enable_str_to_neginf() const + { + return enable_str_to_neginf_ || enable_str_to_inf_; + } + + string_type nan_to_num() const + { + return nan_to_num_; + } + + string_type inf_to_num() const + { + return inf_to_num_; + } + + string_type neginf_to_num() const + { + if (enable_neginf_to_num_) + { + return neginf_to_num_; + } + else if (enable_inf_to_num_) + { + string_type s; + s.push_back('-'); + s.append(inf_to_num_); + return s; + } + else + { + return neginf_to_num_; + } + } + + string_type nan_to_str() const + { + return nan_to_str_; + } + + string_type inf_to_str() const + { + return inf_to_str_; + } + + string_type neginf_to_str() const + { + if (enable_neginf_to_str_) + { + return neginf_to_str_; + } + else if (enable_inf_to_str_) + { + string_type s; + s.push_back('-'); + s.append(inf_to_str_); + return s; + } + else + { + return neginf_to_str_; // empty string + } + } +}; + +template +class basic_csv_decode_options : public virtual basic_csv_options_common +{ + friend class basic_csv_options; + using super_type = basic_csv_options_common; +public: + using typename super_type::char_type; + using typename super_type::string_type; + +private: + bool assume_header_:1; + bool ignore_empty_values_:1; + bool ignore_empty_lines_:1; + bool trim_leading_:1; + bool trim_trailing_:1; + bool trim_leading_inside_quotes_:1; + bool trim_trailing_inside_quotes_:1; + bool unquoted_empty_value_is_null_:1; + bool infer_types_:1; + bool lossless_number_:1; + char_type comment_starter_; + csv_mapping_kind mapping_; + std::size_t header_lines_; + std::size_t max_lines_; + string_type column_types_; + string_type column_defaults_; +public: + basic_csv_decode_options() + : assume_header_(false), + ignore_empty_values_(false), + ignore_empty_lines_(true), + trim_leading_(false), + trim_trailing_(false), + trim_leading_inside_quotes_(false), + trim_trailing_inside_quotes_(false), + unquoted_empty_value_is_null_(false), + infer_types_(true), + lossless_number_(false), + comment_starter_('\0'), + mapping_(), + header_lines_(0), + max_lines_((std::numeric_limits::max)()) + {} + + basic_csv_decode_options(const basic_csv_decode_options& other) = default; + + basic_csv_decode_options(basic_csv_decode_options&& other) + : super_type(std::forward(other)), + assume_header_(other.assume_header_), + ignore_empty_values_(other.ignore_empty_values_), + ignore_empty_lines_(other.ignore_empty_lines_), + trim_leading_(other.trim_leading_), + trim_trailing_(other.trim_trailing_), + trim_leading_inside_quotes_(other.trim_leading_inside_quotes_), + trim_trailing_inside_quotes_(other.trim_trailing_inside_quotes_), + unquoted_empty_value_is_null_(other.unquoted_empty_value_is_null_), + infer_types_(other.infer_types_), + lossless_number_(other.lossless_number_), + comment_starter_(other.comment_starter_), + mapping_(other.mapping_), + header_lines_(other.header_lines_), + max_lines_(other.max_lines_), + column_types_(std::move(other.column_types_)), + column_defaults_(std::move(other.column_defaults_)) + {} + + std::size_t header_lines() const + { + return (assume_header_ && header_lines_ <= 1) ? 1 : header_lines_; + } + + bool assume_header() const + { + return assume_header_; + } + + bool ignore_empty_values() const + { + return ignore_empty_values_; + } + + bool ignore_empty_lines() const + { + return ignore_empty_lines_; + } + + bool trim_leading() const + { + return trim_leading_; + } + + bool trim_trailing() const + { + return trim_trailing_; + } + + bool trim_leading_inside_quotes() const + { + return trim_leading_inside_quotes_; + } + + bool trim_trailing_inside_quotes() const + { + return trim_trailing_inside_quotes_; + } + + bool trim() const + { + return trim_leading_ && trim_trailing_; + } + + bool trim_inside_quotes() const + { + return trim_leading_inside_quotes_ && trim_trailing_inside_quotes_; + } + + bool unquoted_empty_value_is_null() const + { + return unquoted_empty_value_is_null_; + } + + bool infer_types() const + { + return infer_types_; + } + + bool lossless_number() const + { + return lossless_number_; + } + + char_type comment_starter() const + { + return comment_starter_; + } + + csv_mapping_kind mapping_kind() const + { + return mapping_ != csv_mapping_kind() ? mapping_ : (assume_header() || this->column_names().size() > 0 ? csv_mapping_kind::n_objects : csv_mapping_kind::n_rows); + } + +#if !defined(JSONCONS_NO_DEPRECATED) + csv_mapping_kind mapping() const + { + return mapping_kind(); + } +#endif + + std::size_t max_lines() const + { + return max_lines_; + } + + string_type column_types() const + { + return column_types_; + } + + string_type column_defaults() const + { + return column_defaults_; + } +}; + +template +class basic_csv_encode_options : public virtual basic_csv_options_common +{ + friend class basic_csv_options; + using super_type = basic_csv_options_common; +public: + using typename super_type::char_type; + using typename super_type::string_type; +private: + quote_style_kind quote_style_; + float_chars_format float_format_; + int8_t precision_; + string_type line_delimiter_; +public: + basic_csv_encode_options() + : quote_style_(quote_style_kind::minimal), + float_format_(float_chars_format::general), + precision_(0) + { + line_delimiter_.push_back('\n'); + } + + basic_csv_encode_options(const basic_csv_encode_options& other) = default; + + basic_csv_encode_options(basic_csv_encode_options&& other) + : super_type(std::forward(other)), + quote_style_(other.quote_style_), + float_format_(other.float_format_), + precision_(other.precision_), + line_delimiter_(std::move(other.line_delimiter_)) + { + } + + quote_style_kind quote_style() const + { + return quote_style_; + } + + float_chars_format float_format() const + { + return float_format_; + } + + int8_t precision() const + { + return precision_; + } + + string_type line_delimiter() const + { + return line_delimiter_; + } +}; + +template +class basic_csv_options final : public basic_csv_decode_options, public basic_csv_encode_options +{ + using char_type = CharT; + using string_type = std::basic_string; + +public: + using basic_csv_decode_options::enable_str_to_nan; + using basic_csv_decode_options::enable_str_to_inf; + using basic_csv_decode_options::enable_str_to_neginf; + using basic_csv_decode_options::nan_to_str; + using basic_csv_decode_options::inf_to_str; + using basic_csv_decode_options::neginf_to_str; + using basic_csv_decode_options::nan_to_num; + using basic_csv_decode_options::inf_to_num; + using basic_csv_decode_options::neginf_to_num; + using basic_csv_decode_options::field_delimiter; + using basic_csv_decode_options::subfield_delimiter; + using basic_csv_decode_options::quote_char; + using basic_csv_decode_options::quote_escape_char; + using basic_csv_decode_options::column_names; + using basic_csv_decode_options::header_lines; + using basic_csv_decode_options::assume_header; + using basic_csv_decode_options::ignore_empty_values; + using basic_csv_decode_options::ignore_empty_lines; + using basic_csv_decode_options::trim_leading; + using basic_csv_decode_options::trim_trailing; + using basic_csv_decode_options::trim_leading_inside_quotes; + using basic_csv_decode_options::trim_trailing_inside_quotes; + using basic_csv_decode_options::trim; + using basic_csv_decode_options::trim_inside_quotes; + using basic_csv_decode_options::unquoted_empty_value_is_null; + using basic_csv_decode_options::infer_types; + using basic_csv_decode_options::lossless_number; + using basic_csv_decode_options::comment_starter; + using basic_csv_decode_options::mapping; + using basic_csv_decode_options::max_lines; + using basic_csv_decode_options::column_types; + using basic_csv_decode_options::column_defaults; + using basic_csv_encode_options::float_format; + using basic_csv_encode_options::precision; + using basic_csv_encode_options::line_delimiter; + using basic_csv_encode_options::quote_style; + + static constexpr size_t default_indent = 4; + +// Constructors + + basic_csv_options() = default; + basic_csv_options(const basic_csv_options&) = default; + basic_csv_options(basic_csv_options&&) = default; + basic_csv_options& operator=(const basic_csv_options&) = default; + basic_csv_options& operator=(basic_csv_options&&) = default; + + basic_csv_options& float_format(float_chars_format value) + { + this->float_format_ = value; + return *this; + } + + basic_csv_options& precision(int8_t value) + { + this->precision_ = value; + return *this; + } + + basic_csv_options& header_lines(std::size_t value) + { + this->header_lines_ = value; + return *this; + } + + basic_csv_options& assume_header(bool value) + { + this->assume_header_ = value; + return *this; + } + + basic_csv_options& ignore_empty_values(bool value) + { + this->ignore_empty_values_ = value; + return *this; + } + + basic_csv_options& ignore_empty_lines(bool value) + { + this->ignore_empty_lines_ = value; + return *this; + } + + basic_csv_options& trim_leading(bool value) + { + this->trim_leading_ = value; + return *this; + } + + basic_csv_options& trim_trailing(bool value) + { + this->trim_trailing_ = value; + return *this; + } + + basic_csv_options& trim_leading_inside_quotes(bool value) + { + this->trim_leading_inside_quotes_ = value; + return *this; + } + + basic_csv_options& trim_trailing_inside_quotes(bool value) + { + this->trim_trailing_inside_quotes_ = value; + return *this; + } + + basic_csv_options& trim(bool value) + { + this->trim_leading_ = value; + this->trim_trailing_ = value; + return *this; + } + + basic_csv_options& trim_inside_quotes(bool value) + { + this->trim_leading_inside_quotes_ = value; + this->trim_trailing_inside_quotes_ = value; + return *this; + } + + basic_csv_options& unquoted_empty_value_is_null(bool value) + { + this->unquoted_empty_value_is_null_ = value; + return *this; + } + + basic_csv_options& column_names(const string_type& value) + { + this->column_names_ = value; + return *this; + } + + basic_csv_options& column_types(const string_type& value) + { + this->column_types_ = value; + return *this; + } + + basic_csv_options& column_defaults(const string_type& value) + { + this->column_defaults_ = value; + return *this; + } + + basic_csv_options& field_delimiter(char_type value) + { + this->field_delimiter_ = value; + return *this; + } + + basic_csv_options& subfield_delimiter(char_type value) + { + this->subfield_delimiter_ = value; + return *this; + } + + basic_csv_options& line_delimiter(const string_type& value) + { + this->line_delimiter_ = value; + return *this; + } + + basic_csv_options& quote_char(char_type value) + { + this->quote_char_ = value; + return *this; + } + + basic_csv_options& infer_types(bool value) + { + this->infer_types_ = value; + return *this; + } + + basic_csv_options& lossless_number(bool value) + { + this->lossless_number_ = value; + return *this; + } + + basic_csv_options& quote_escape_char(char_type value) + { + this->quote_escape_char_ = value; + return *this; + } + + basic_csv_options& comment_starter(char_type value) + { + this->comment_starter_ = value; + return *this; + } + + basic_csv_options& quote_style(quote_style_kind value) + { + this->quote_style_ = value; + return *this; + } + +//#if !defined(JSONCONS_NO_DEPRECATED) + basic_csv_options& mapping(csv_mapping_kind value) + { + this->mapping_ = value; + return *this; + } +//#endif + + basic_csv_options& mapping_kind(csv_mapping_kind value) + { + this->mapping_ = value; + return *this; + } + + basic_csv_options& max_lines(std::size_t value) + { + this->max_lines_ = value; + return *this; + } + + basic_csv_options& nan_to_num(const string_type& value) + { + this->enable_nan_to_num_ = true; + this->nan_to_str_.clear(); + this->nan_to_num_ = value; + return *this; + } + + basic_csv_options& inf_to_num(const string_type& value) + { + this->enable_inf_to_num_ = true; + this->inf_to_str_.clear(); + this->inf_to_num_ = value; + return *this; + } + + basic_csv_options& neginf_to_num(const string_type& value) + { + this->enable_neginf_to_num_ = true; + this->neginf_to_str_.clear(); + this->neginf_to_num_ = value; + return *this; + } + + basic_csv_options& nan_to_str(const string_type& value, bool enable_inverse = true) + { + this->enable_nan_to_str_ = true; + this->enable_str_to_nan_ = enable_inverse; + this->nan_to_num_.clear(); + this->nan_to_str_ = value; + return *this; + } + + basic_csv_options& inf_to_str(const string_type& value, bool enable_inverse = true) + { + this->enable_inf_to_str_ = true; + this->enable_inf_to_str_ = enable_inverse; + this->inf_to_num_.clear(); + this->inf_to_str_ = value; + return *this; + } + + basic_csv_options& neginf_to_str(const string_type& value, bool enable_inverse = true) + { + this->enable_neginf_to_str_ = true; + this->enable_neginf_to_str_ = enable_inverse; + this->neginf_to_num_.clear(); + this->neginf_to_str_ = value; + return *this; + } + +#if !defined(JSONCONS_NO_DEPRECATED) + + JSONCONS_DEPRECATED_MSG("Instead, use float_format(float_chars_format)") + basic_csv_options& floating_point_format(float_chars_format value) + { + this->float_format_ = value; + return *this; + } +#endif + +}; + +using csv_options = basic_csv_options; +using wcsv_options = basic_csv_options; + +#if !defined(JSONCONS_NO_DEPRECATED) +JSONCONS_DEPRECATED_MSG("Instead, use csv_options") typedef csv_options csv_parameters; +JSONCONS_DEPRECATED_MSG("Instead, use wcsv_options") typedef wcsv_options wcsv_parameters; +JSONCONS_DEPRECATED_MSG("Instead, use csv_options") typedef csv_options csv_serializing_options; +JSONCONS_DEPRECATED_MSG("Instead, use wcsv_options") typedef wcsv_options wcsv_serializing_options; +#endif + + +}} +#endif diff --git a/include/jsoncons_ext/csv/csv_parser.hpp b/include/jsoncons_ext/csv/csv_parser.hpp new file mode 100644 index 0000000..37887e2 --- /dev/null +++ b/include/jsoncons_ext/csv/csv_parser.hpp @@ -0,0 +1,2097 @@ +// Copyright 2015 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_CSV_CSV_PARSER_HPP +#define JSONCONS_CSV_CSV_PARSER_HPP + +#include // std::allocator +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +namespace jsoncons { namespace csv { + +enum class csv_mode +{ + initial, + header, + data, + subfields +}; + +enum class csv_parse_state +{ + start, + cr, + column_labels, + expect_comment_or_record, + expect_record, + end_record, + no_more_records, + comment, + between_values, + quoted_string, + unquoted_string, + before_unquoted_string, + escaped_value, + minus, + zero, + integer, + fraction, + exp1, + exp2, + exp3, + accept, + before_unquoted_field, + before_unquoted_field_tail, + before_unquoted_field_tail1, + before_last_unquoted_field, + before_last_unquoted_field_tail, + before_unquoted_subfield, + before_unquoted_subfield_tail, + before_quoted_subfield, + before_quoted_subfield_tail, + before_quoted_field, + before_quoted_field_tail, + before_last_quoted_field, + before_last_quoted_field_tail, + done +}; + +enum class cached_state +{ + begin_object, + end_object, + begin_array, + end_array, + name, + item, + done +}; + +struct default_csv_parsing +{ + bool operator()(csv_errc, const ser_context&) noexcept + { + return false; + } +}; + +namespace detail { + + template + class parse_event + { + using temp_allocator_type = TempAllocator; + using string_view_type = typename basic_json_visitor::string_view_type; + using char_allocator_type = typename std::allocator_traits:: template rebind_alloc; + using byte_allocator_type = typename std::allocator_traits:: template rebind_alloc; + using string_type = std::basic_string,char_allocator_type>; + using byte_string_type = basic_byte_string; + + staj_event_type event_type; + string_type string_value; + byte_string_type byte_string_value; + union + { + bool bool_value; + int64_t int64_value; + uint64_t uint64_value; + double double_value; + }; + semantic_tag tag; + public: + parse_event(staj_event_type event_type, semantic_tag tag, const TempAllocator& alloc) + : event_type(event_type), + string_value(alloc), + byte_string_value(alloc), + tag(tag) + { + } + + parse_event(const string_view_type& value, semantic_tag tag, const TempAllocator& alloc) + : event_type(staj_event_type::string_value), + string_value(value.data(),value.length(),alloc), + byte_string_value(alloc), + tag(tag) + { + } + + parse_event(const byte_string_view& value, semantic_tag tag, const TempAllocator& alloc) + : event_type(staj_event_type::byte_string_value), + string_value(alloc), + byte_string_value(value.data(),value.size(),alloc), + tag(tag) + { + } + + parse_event(bool value, semantic_tag tag, const TempAllocator& alloc) + : event_type(staj_event_type::bool_value), + string_value(alloc), + byte_string_value(alloc), + bool_value(value), + tag(tag) + { + } + + parse_event(int64_t value, semantic_tag tag, const TempAllocator& alloc) + : event_type(staj_event_type::int64_value), + string_value(alloc), + byte_string_value(alloc), + int64_value(value), + tag(tag) + { + } + + parse_event(uint64_t value, semantic_tag tag, const TempAllocator& alloc) + : event_type(staj_event_type::uint64_value), + string_value(alloc), + byte_string_value(alloc), + uint64_value(value), + tag(tag) + { + } + + parse_event(double value, semantic_tag tag, const TempAllocator& alloc) + : event_type(staj_event_type::double_value), + string_value(alloc), + byte_string_value(alloc), + double_value(value), + tag(tag) + { + } + + parse_event(const parse_event&) = default; + parse_event(parse_event&&) = default; + parse_event& operator=(const parse_event&) = default; + parse_event& operator=(parse_event&&) = default; + + bool replay(basic_json_visitor& visitor) const + { + switch (event_type) + { + case staj_event_type::begin_array: + return visitor.begin_array(tag, ser_context()); + case staj_event_type::end_array: + return visitor.end_array(ser_context()); + case staj_event_type::string_value: + return visitor.string_value(string_value, tag, ser_context()); + case staj_event_type::byte_string_value: + case staj_event_type::null_value: + return visitor.null_value(tag, ser_context()); + case staj_event_type::bool_value: + return visitor.bool_value(bool_value, tag, ser_context()); + case staj_event_type::int64_value: + return visitor.int64_value(int64_value, tag, ser_context()); + case staj_event_type::uint64_value: + return visitor.uint64_value(uint64_value, tag, ser_context()); + case staj_event_type::double_value: + return visitor.double_value(double_value, tag, ser_context()); + default: + return false; + } + } + }; + + template + class m_columns_filter : public basic_json_visitor + { + public: + using string_view_type = typename basic_json_visitor::string_view_type; + using char_type = CharT; + using temp_allocator_type = TempAllocator; + + using char_allocator_type = typename std::allocator_traits:: template rebind_alloc; + using string_type = std::basic_string,char_allocator_type>; + + using string_allocator_type = typename std::allocator_traits:: template rebind_alloc; + using parse_event_allocator_type = typename std::allocator_traits:: template rebind_alloc>; + using parse_event_vector_type = std::vector, parse_event_allocator_type>; + using parse_event_vector_allocator_type = typename std::allocator_traits:: template rebind_alloc; + private: + TempAllocator alloc_; + std::size_t name_index_; + int level_; + cached_state state_; + std::size_t column_index_; + std::size_t row_index_; + + std::vector column_names_; + std::vector cached_events_; + public: + + m_columns_filter(const TempAllocator& alloc) + : alloc_(alloc), + name_index_(0), + level_(0), + state_(cached_state::begin_object), + column_index_(0), + row_index_(0), + column_names_(alloc), + cached_events_(alloc) + { + } + + void reset() + { + name_index_ = 0; + level_ = 0; + state_ = cached_state::begin_object; + column_index_ = 0; + row_index_ = 0; + column_names_.clear(); + cached_events_.clear(); + } + + bool done() const + { + return state_ == cached_state::done; + } + + void initialize(const std::vector& column_names) + { + for (const auto& name : column_names) + { + column_names_.push_back(name); + cached_events_.emplace_back(alloc_); + } + name_index_ = 0; + level_ = 0; + column_index_ = 0; + row_index_ = 0; + state_ = cached_state::begin_object; + } + + void skip_column() + { + ++name_index_; + } + + bool replay_parse_events(basic_json_visitor& visitor) + { + bool more = true; + while (more) + { + switch (state_) + { + case cached_state::begin_object: + more = visitor.begin_object(semantic_tag::none, ser_context()); + column_index_ = 0; + state_ = cached_state::name; + break; + case cached_state::end_object: + more = visitor.end_object(ser_context()); + state_ = cached_state::done; + break; + case cached_state::name: + if (column_index_ < column_names_.size()) + { + more = visitor.key(column_names_[column_index_], ser_context()); + state_ = cached_state::begin_array; + } + else + { + state_ = cached_state::end_object; + } + break; + case cached_state::begin_array: + more = visitor.begin_array(semantic_tag::none, ser_context()); + row_index_ = 0; + state_ = cached_state::item; + break; + case cached_state::end_array: + more = visitor.end_array(ser_context()); + ++column_index_; + state_ = cached_state::name; + break; + case cached_state::item: + if (row_index_ < cached_events_[column_index_].size()) + { + more = cached_events_[column_index_][row_index_].replay(visitor); + ++row_index_; + } + else + { + state_ = cached_state::end_array; + } + break; + default: + more = false; + break; + } + } + return more; + } + + void visit_flush() override + { + } + + bool visit_begin_object(semantic_tag, const ser_context&, std::error_code& ec) override + { + ec = csv_errc::invalid_parse_state; + return false; + } + + bool visit_end_object(const ser_context&, std::error_code& ec) override + { + ec = csv_errc::invalid_parse_state; + return false; + } + + bool visit_begin_array(semantic_tag tag, const ser_context&, std::error_code&) override + { + if (name_index_ < column_names_.size()) + { + cached_events_[name_index_].emplace_back(staj_event_type::begin_array, tag, alloc_); + + ++level_; + } + return true; + } + + bool visit_end_array(const ser_context&, std::error_code&) override + { + if (level_ > 0) + { + cached_events_[name_index_].emplace_back(staj_event_type::end_array, semantic_tag::none, alloc_); + ++name_index_; + --level_; + } + else + { + name_index_ = 0; + } + return true; + } + + bool visit_key(const string_view_type&, const ser_context&, std::error_code& ec) override + { + ec = csv_errc::invalid_parse_state; + return false; + } + + bool visit_null(semantic_tag tag, const ser_context&, std::error_code&) override + { + if (name_index_ < column_names_.size()) + { + cached_events_[name_index_].emplace_back(staj_event_type::null_value, tag, alloc_); + if (level_ == 0) + { + ++name_index_; + } + } + return true; + } + + bool visit_string(const string_view_type& value, semantic_tag tag, const ser_context&, std::error_code&) override + { + if (name_index_ < column_names_.size()) + { + cached_events_[name_index_].emplace_back(value, tag, alloc_); + + if (level_ == 0) + { + ++name_index_; + } + } + return true; + } + + bool visit_byte_string(const byte_string_view& value, + semantic_tag tag, + const ser_context&, + std::error_code&) override + { + if (name_index_ < column_names_.size()) + { + cached_events_[name_index_].emplace_back(value, tag, alloc_); + if (level_ == 0) + { + ++name_index_; + } + } + return true; + } + + bool visit_double(double value, + semantic_tag tag, + const ser_context&, + std::error_code&) override + { + if (name_index_ < column_names_.size()) + { + cached_events_[name_index_].emplace_back(value, tag, alloc_); + if (level_ == 0) + { + ++name_index_; + } + } + return true; + } + + bool visit_int64(int64_t value, + semantic_tag tag, + const ser_context&, + std::error_code&) override + { + if (name_index_ < column_names_.size()) + { + cached_events_[name_index_].emplace_back(value, tag, alloc_); + if (level_ == 0) + { + ++name_index_; + } + } + return true; + } + + bool visit_uint64(uint64_t value, + semantic_tag tag, + const ser_context&, + std::error_code&) override + { + if (name_index_ < column_names_.size()) + { + cached_events_[name_index_].emplace_back(value, tag, alloc_); + if (level_ == 0) + { + ++name_index_; + } + } + return true; + } + + bool visit_bool(bool value, semantic_tag tag, const ser_context&, std::error_code&) override + { + if (name_index_ < column_names_.size()) + { + cached_events_[name_index_].emplace_back(value, tag, alloc_); + if (level_ == 0) + { + ++name_index_; + } + } + return true; + } + }; + +} // namespace detail + +template> +class basic_csv_parser : public ser_context +{ +public: + using string_view_type = jsoncons::basic_string_view; + using char_type = CharT; +private: + struct string_maps_to_double + { + string_view_type s; + + bool operator()(const std::pair& val) const + { + return val.first == s; + } + }; + + using temp_allocator_type = TempAllocator; + typedef typename std::allocator_traits:: template rebind_alloc char_allocator_type; + using string_type = std::basic_string,char_allocator_type>; + typedef typename std::allocator_traits:: template rebind_alloc string_allocator_type; + typedef typename std::allocator_traits:: template rebind_alloc csv_mode_allocator_type; + typedef typename std::allocator_traits:: template rebind_alloc csv_type_info_allocator_type; + typedef typename std::allocator_traits:: template rebind_alloc> string_vector_allocator_type; + typedef typename std::allocator_traits:: template rebind_alloc csv_parse_state_allocator_type; + + static constexpr int default_depth = 3; + + temp_allocator_type alloc_; + csv_parse_state state_; + basic_json_visitor* visitor_; + std::function err_handler_; + std::size_t column_; + std::size_t line_; + int depth_; + const basic_csv_decode_options options_; + std::size_t column_index_; + std::size_t level_; + std::size_t offset_; + jsoncons::detail::chars_to to_double_; + const CharT* begin_input_; + const CharT* input_end_; + const CharT* input_ptr_; + bool more_; + std::size_t header_line_; + + detail::m_columns_filter m_columns_filter_; + std::vector stack_; + std::vector column_names_; + std::vector column_types_; + std::vector column_defaults_; + std::vector state_stack_; + string_type buffer_; + std::vector> string_double_map_; + +public: + basic_csv_parser(const TempAllocator& alloc = TempAllocator()) + : basic_csv_parser(basic_csv_decode_options(), + default_csv_parsing(), + alloc) + { + } + + basic_csv_parser(const basic_csv_decode_options& options, + const TempAllocator& alloc = TempAllocator()) + : basic_csv_parser(options, + default_csv_parsing(), + alloc) + { + } + + basic_csv_parser(std::function err_handler, + const TempAllocator& alloc = TempAllocator()) + : basic_csv_parser(basic_csv_decode_options(), + err_handler, + alloc) + { + } + + basic_csv_parser(const basic_csv_decode_options& options, + std::function err_handler, + const TempAllocator& alloc = TempAllocator()) + : alloc_(alloc), + state_(csv_parse_state::start), + visitor_(nullptr), + err_handler_(err_handler), + column_(1), + line_(1), + depth_(default_depth), + options_(options), + column_index_(0), + level_(0), + offset_(0), + begin_input_(nullptr), + input_end_(nullptr), + input_ptr_(nullptr), + more_(true), + header_line_(1), + m_columns_filter_(alloc), + stack_(alloc), + column_names_(alloc), + column_types_(alloc), + column_defaults_(alloc), + state_stack_(alloc), + buffer_(alloc) + { + if (options_.enable_str_to_nan()) + { + string_double_map_.emplace_back(options_.nan_to_str(),std::nan("")); + } + if (options_.enable_str_to_inf()) + { + string_double_map_.emplace_back(options_.inf_to_str(),std::numeric_limits::infinity()); + } + if (options_.enable_str_to_neginf()) + { + string_double_map_.emplace_back(options_.neginf_to_str(),-std::numeric_limits::infinity()); + } + + initialize(); + } + + ~basic_csv_parser() noexcept + { + } + + bool done() const + { + return state_ == csv_parse_state::done; + } + + bool accept() const + { + return state_ == csv_parse_state::accept || state_ == csv_parse_state::done; + } + + bool stopped() const + { + return !more_; + } + + bool source_exhausted() const + { + return input_ptr_ == input_end_; + } + + const std::vector& column_labels() const + { + return column_names_; + } + + void reinitialize() + { + state_ = csv_parse_state::start; + visitor_ = nullptr; + column_ = 1; + line_ = 1; + depth_ = default_depth; + column_index_ = 0; + level_ = 0; + offset_ = 0; + begin_input_ = nullptr; + input_end_ = nullptr; + input_ptr_ = nullptr; + more_ = true; + header_line_ = 1; + m_columns_filter_.reset(); + stack_.clear(); + column_names_.clear(); + column_types_.clear(); + column_defaults_.clear(); + state_stack_.clear(); + buffer_.clear(); + + initialize(); + } + + void restart() + { + more_ = true; + } + + void parse_some(basic_json_visitor& visitor) + { + std::error_code ec; + parse_some(visitor,ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec,line_,column_)); + } + } + + void parse_some(basic_json_visitor& visitor, std::error_code& ec) + { + switch (options_.mapping_kind()) + { + case csv_mapping_kind::m_columns: + visitor_ = &m_columns_filter_; + break; + default: + visitor_ = std::addressof(visitor); + break; + } + + const CharT* local_input_end = input_end_; + + if (input_ptr_ == local_input_end && more_) + { + switch (state_) + { + case csv_parse_state::start: + ec = csv_errc::source_error; + more_ = false; + return; + case csv_parse_state::before_unquoted_field: + case csv_parse_state::before_last_unquoted_field: + end_unquoted_string_value(ec); + state_ = csv_parse_state::before_last_unquoted_field_tail; + break; + case csv_parse_state::before_last_unquoted_field_tail: + if (stack_.back() == csv_mode::subfields) + { + stack_.pop_back(); + more_ = visitor_->end_array(*this, ec); + } + ++column_index_; + state_ = csv_parse_state::end_record; + break; + case csv_parse_state::before_unquoted_string: + buffer_.clear(); + JSONCONS_FALLTHROUGH; + case csv_parse_state::unquoted_string: + if (options_.trim_leading() || options_.trim_trailing()) + { + trim_string_buffer(options_.trim_leading(),options_.trim_trailing()); + } + if (options_.ignore_empty_values() && buffer_.empty()) + { + state_ = csv_parse_state::end_record; + } + else + { + before_value(ec); + state_ = csv_parse_state::before_unquoted_field; + } + break; + case csv_parse_state::before_last_quoted_field: + end_quoted_string_value(ec); + ++column_index_; + state_ = csv_parse_state::end_record; + break; + case csv_parse_state::escaped_value: + if (options_.quote_escape_char() == options_.quote_char()) + { + if (!(options_.ignore_empty_values() && buffer_.empty())) + { + before_value(ec); + ++column_; + state_ = csv_parse_state::before_last_quoted_field; + } + else + { + state_ = csv_parse_state::end_record; + } + } + else + { + ec = csv_errc::invalid_escaped_char; + more_ = false; + return; + } + break; + case csv_parse_state::end_record: + if (column_index_ > 0) + { + after_record(ec); + } + state_ = csv_parse_state::no_more_records; + break; + case csv_parse_state::no_more_records: + switch (stack_.back()) + { + case csv_mode::header: + stack_.pop_back(); + break; + case csv_mode::data: + stack_.pop_back(); + break; + default: + break; + } + more_ = visitor_->end_array(*this, ec); + if (options_.mapping_kind() == csv_mapping_kind::m_columns) + { + if (!m_columns_filter_.done()) + { + more_ = m_columns_filter_.replay_parse_events(visitor); + } + else + { + state_ = csv_parse_state::accept; + } + } + else + { + state_ = csv_parse_state::accept; + } + break; + case csv_parse_state::accept: + if (!(stack_.size() == 1 && stack_.back() == csv_mode::initial)) + { + err_handler_(csv_errc::unexpected_eof, *this); + ec = csv_errc::unexpected_eof; + more_ = false; + return; + } + stack_.pop_back(); + visitor_->flush(); + state_ = csv_parse_state::done; + more_ = false; + return; + default: + state_ = csv_parse_state::end_record; + break; + } + } + + for (; (input_ptr_ < local_input_end) && more_;) + { + CharT curr_char = *input_ptr_; + + switch (state_) + { + case csv_parse_state::cr: + ++line_; + column_ = 1; + switch (*input_ptr_) + { + case '\n': + ++input_ptr_; + state_ = pop_state(); + break; + default: + state_ = pop_state(); + break; + } + break; + case csv_parse_state::start: + if (options_.mapping_kind() != csv_mapping_kind::m_columns) + { + more_ = visitor_->begin_array(semantic_tag::none, *this, ec); + } + if (options_.assume_header() && options_.mapping_kind() == csv_mapping_kind::n_rows && options_.column_names().size() > 0) + { + column_index_ = 0; + state_ = csv_parse_state::column_labels; + more_ = visitor_->begin_array(semantic_tag::none, *this, ec); + state_ = csv_parse_state::expect_comment_or_record; + } + else + { + state_ = csv_parse_state::expect_comment_or_record; + } + break; + case csv_parse_state::column_labels: + if (column_index_ < column_names_.size()) + { + more_ = visitor_->string_value(column_names_[column_index_], semantic_tag::none, *this, ec); + ++column_index_; + } + else + { + more_ = visitor_->end_array(*this, ec); + state_ = csv_parse_state::expect_comment_or_record; + //stack_.back() = csv_mode::data; + column_index_ = 0; + } + break; + case csv_parse_state::comment: + switch (curr_char) + { + case '\n': + { + ++line_; + if (stack_.back() == csv_mode::header) + { + ++header_line_; + } + column_ = 1; + state_ = csv_parse_state::expect_comment_or_record; + break; + } + case '\r': + ++line_; + if (stack_.back() == csv_mode::header) + { + ++header_line_; + } + column_ = 1; + state_ = csv_parse_state::expect_comment_or_record; + push_state(state_); + state_ = csv_parse_state::cr; + break; + default: + ++column_; + break; + } + ++input_ptr_; + break; + + case csv_parse_state::expect_comment_or_record: + buffer_.clear(); + if (curr_char == options_.comment_starter()) + { + state_ = csv_parse_state::comment; + ++column_; + ++input_ptr_; + } + else + { + state_ = csv_parse_state::expect_record; + } + break; + case csv_parse_state::quoted_string: + { + if (curr_char == options_.quote_escape_char()) + { + state_ = csv_parse_state::escaped_value; + } + else if (curr_char == options_.quote_char()) + { + state_ = csv_parse_state::between_values; + } + else + { + buffer_.push_back(static_cast(curr_char)); + } + } + ++column_; + ++input_ptr_; + break; + case csv_parse_state::escaped_value: + { + if (curr_char == options_.quote_char()) + { + buffer_.push_back(static_cast(curr_char)); + state_ = csv_parse_state::quoted_string; + ++column_; + ++input_ptr_; + } + else if (options_.quote_escape_char() == options_.quote_char()) + { + state_ = csv_parse_state::between_values; + } + else + { + ec = csv_errc::invalid_escaped_char; + more_ = false; + return; + } + } + break; + case csv_parse_state::between_values: + switch (curr_char) + { + case '\r': + case '\n': + { + if (options_.trim_leading() || options_.trim_trailing()) + { + trim_string_buffer(options_.trim_leading(),options_.trim_trailing()); + } + if (!(options_.ignore_empty_values() && buffer_.empty())) + { + before_value(ec); + state_ = csv_parse_state::before_last_quoted_field; + } + else + { + state_ = csv_parse_state::end_record; + } + break; + } + default: + if (curr_char == options_.field_delimiter()) + { + if (options_.trim_leading() || options_.trim_trailing()) + { + trim_string_buffer(options_.trim_leading(),options_.trim_trailing()); + } + before_value(ec); + state_ = csv_parse_state::before_quoted_field; + } + else if (options_.subfield_delimiter() != char_type() && curr_char == options_.subfield_delimiter()) + { + if (options_.trim_leading() || options_.trim_trailing()) + { + trim_string_buffer(options_.trim_leading(),options_.trim_trailing()); + } + before_value(ec); + state_ = csv_parse_state::before_quoted_subfield; + } + else if (curr_char == ' ' || curr_char == '\t') + { + ++column_; + ++input_ptr_; + } + else + { + ec = csv_errc::unexpected_char_between_fields; + more_ = false; + return; + } + break; + } + break; + case csv_parse_state::before_unquoted_string: + { + buffer_.clear(); + state_ = csv_parse_state::unquoted_string; + break; + } + case csv_parse_state::before_unquoted_field: + end_unquoted_string_value(ec); + state_ = csv_parse_state::before_unquoted_field_tail; + break; + case csv_parse_state::before_unquoted_field_tail: + { + if (stack_.back() == csv_mode::subfields) + { + stack_.pop_back(); + more_ = visitor_->end_array(*this, ec); + } + ++column_index_; + state_ = csv_parse_state::before_unquoted_string; + ++column_; + ++input_ptr_; + break; + } + case csv_parse_state::before_unquoted_field_tail1: + { + if (stack_.back() == csv_mode::subfields) + { + stack_.pop_back(); + more_ = visitor_->end_array(*this, ec); + } + state_ = csv_parse_state::end_record; + ++column_; + ++input_ptr_; + break; + } + + case csv_parse_state::before_last_unquoted_field: + end_unquoted_string_value(ec); + state_ = csv_parse_state::before_last_unquoted_field_tail; + break; + + case csv_parse_state::before_last_unquoted_field_tail: + if (stack_.back() == csv_mode::subfields) + { + stack_.pop_back(); + more_ = visitor_->end_array(*this, ec); + } + ++column_index_; + state_ = csv_parse_state::end_record; + break; + + case csv_parse_state::before_unquoted_subfield: + if (stack_.back() == csv_mode::data) + { + stack_.push_back(csv_mode::subfields); + more_ = visitor_->begin_array(semantic_tag::none, *this, ec); + } + state_ = csv_parse_state::before_unquoted_subfield_tail; + break; + case csv_parse_state::before_unquoted_subfield_tail: + end_unquoted_string_value(ec); + state_ = csv_parse_state::before_unquoted_string; + ++column_; + ++input_ptr_; + break; + case csv_parse_state::before_quoted_field: + end_quoted_string_value(ec); + state_ = csv_parse_state::before_unquoted_field_tail; // return to unquoted + break; + case csv_parse_state::before_quoted_subfield: + if (stack_.back() == csv_mode::data) + { + stack_.push_back(csv_mode::subfields); + more_ = visitor_->begin_array(semantic_tag::none, *this, ec); + } + state_ = csv_parse_state::before_quoted_subfield_tail; + break; + case csv_parse_state::before_quoted_subfield_tail: + end_quoted_string_value(ec); + state_ = csv_parse_state::before_unquoted_string; + ++column_; + ++input_ptr_; + break; + case csv_parse_state::before_last_quoted_field: + end_quoted_string_value(ec); + state_ = csv_parse_state::before_last_quoted_field_tail; + break; + case csv_parse_state::before_last_quoted_field_tail: + if (stack_.back() == csv_mode::subfields) + { + stack_.pop_back(); + more_ = visitor_->end_array(*this, ec); + } + ++column_index_; + state_ = csv_parse_state::end_record; + break; + case csv_parse_state::unquoted_string: + { + switch (curr_char) + { + case '\n': + case '\r': + { + if (options_.trim_leading() || options_.trim_trailing()) + { + trim_string_buffer(options_.trim_leading(),options_.trim_trailing()); + } + if (!(options_.ignore_empty_values() && buffer_.empty())) + { + before_value(ec); + state_ = csv_parse_state::before_last_unquoted_field; + } + else + { + state_ = csv_parse_state::end_record; + } + break; + } + default: + if (curr_char == options_.field_delimiter()) + { + if (options_.trim_leading() || options_.trim_trailing()) + { + trim_string_buffer(options_.trim_leading(),options_.trim_trailing()); + } + before_value(ec); + state_ = csv_parse_state::before_unquoted_field; + } + else if (options_.subfield_delimiter() != char_type() && curr_char == options_.subfield_delimiter()) + { + if (options_.trim_leading() || options_.trim_trailing()) + { + trim_string_buffer(options_.trim_leading(),options_.trim_trailing()); + } + before_value(ec); + state_ = csv_parse_state::before_unquoted_subfield; + } + else if (curr_char == options_.quote_char()) + { + buffer_.clear(); + state_ = csv_parse_state::quoted_string; + ++column_; + ++input_ptr_; + } + else + { + buffer_.push_back(static_cast(curr_char)); + ++column_; + ++input_ptr_; + } + break; + } + break; + } + case csv_parse_state::expect_record: + { + switch (curr_char) + { + case '\n': + { + if (!options_.ignore_empty_lines()) + { + before_record(ec); + state_ = csv_parse_state::end_record; + } + else + { + ++line_; + column_ = 1; + state_ = csv_parse_state::expect_comment_or_record; + ++input_ptr_; + } + break; + } + case '\r': + if (!options_.ignore_empty_lines()) + { + before_record(ec); + state_ = csv_parse_state::end_record; + } + else + { + ++line_; + column_ = 1; + state_ = csv_parse_state::expect_comment_or_record; + ++input_ptr_; + push_state(state_); + state_ = csv_parse_state::cr; + } + break; + case ' ': + case '\t': + if (!options_.trim_leading()) + { + buffer_.push_back(static_cast(curr_char)); + before_record(ec); + state_ = csv_parse_state::unquoted_string; + } + ++column_; + ++input_ptr_; + break; + default: + before_record(ec); + if (curr_char == options_.quote_char()) + { + buffer_.clear(); + state_ = csv_parse_state::quoted_string; + ++column_; + ++input_ptr_; + } + else + { + state_ = csv_parse_state::unquoted_string; + } + break; + } + break; + } + case csv_parse_state::end_record: + { + switch (curr_char) + { + case '\n': + { + ++line_; + column_ = 1; + state_ = csv_parse_state::expect_comment_or_record; + after_record(ec); + ++input_ptr_; + break; + } + case '\r': + ++line_; + column_ = 1; + state_ = csv_parse_state::expect_comment_or_record; + after_record(ec); + push_state(state_); + state_ = csv_parse_state::cr; + ++input_ptr_; + break; + case ' ': + case '\t': + ++column_; + ++input_ptr_; + break; + default: + err_handler_(csv_errc::syntax_error, *this); + ec = csv_errc::syntax_error; + more_ = false; + return; + } + break; + } + default: + err_handler_(csv_errc::invalid_parse_state, *this); + ec = csv_errc::invalid_parse_state; + more_ = false; + return; + } + if (line_ > options_.max_lines()) + { + state_ = csv_parse_state::done; + more_ = false; + } + } + } + + void finish_parse() + { + std::error_code ec; + finish_parse(ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec,line_,column_)); + } + } + + void finish_parse(std::error_code& ec) + { + while (more_) + { + parse_some(ec); + } + } + + csv_parse_state state() const + { + return state_; + } + + void update(const string_view_type sv) + { + update(sv.data(),sv.length()); + } + + void update(const CharT* data, std::size_t length) + { + begin_input_ = data; + input_end_ = data + length; + input_ptr_ = begin_input_; + } + + std::size_t line() const override + { + return line_; + } + + std::size_t column() const override + { + return column_; + } + +private: + void initialize() + { + jsoncons::csv::detail::parse_column_names(options_.column_names(), column_names_); + jsoncons::csv::detail::parse_column_types(options_.column_types(), column_types_); + jsoncons::csv::detail::parse_column_names(options_.column_defaults(), column_defaults_); + + stack_.reserve(default_depth); + stack_.push_back(csv_mode::initial); + stack_.push_back((options_.header_lines() > 0) ? csv_mode::header + : csv_mode::data); + } + + // name + void before_value(std::error_code& ec) + { + switch (stack_.back()) + { + case csv_mode::header: + if (options_.trim_leading_inside_quotes() || options_.trim_trailing_inside_quotes()) + { + trim_string_buffer(options_.trim_leading_inside_quotes(),options_.trim_trailing_inside_quotes()); + } + if (line_ == header_line_) + { + column_names_.push_back(buffer_); + if (options_.assume_header() && options_.mapping_kind() == csv_mapping_kind::n_rows) + { + more_ = visitor_->string_value(buffer_, semantic_tag::none, *this, ec); + } + } + break; + case csv_mode::data: + if (options_.mapping_kind() == csv_mapping_kind::n_objects) + { + if (!(options_.ignore_empty_values() && buffer_.empty())) + { + if (column_index_ < column_names_.size() + offset_) + { + more_ = visitor_->key(column_names_[column_index_ - offset_], *this, ec); + } + } + } + break; + default: + break; + } + } + + // begin_array or begin_record + void before_record(std::error_code& ec) + { + offset_ = 0; + + switch (stack_.back()) + { + case csv_mode::header: + if (options_.assume_header() && line_ == header_line_) + { + if (options_.mapping_kind() == csv_mapping_kind::n_rows) + { + more_ = visitor_->begin_array(semantic_tag::none, *this, ec); + } + } + break; + case csv_mode::data: + switch (options_.mapping_kind()) + { + case csv_mapping_kind::n_rows: + more_ = visitor_->begin_array(semantic_tag::none, *this, ec); + break; + case csv_mapping_kind::n_objects: + more_ = visitor_->begin_object(semantic_tag::none, *this, ec); + break; + case csv_mapping_kind::m_columns: + break; + default: + break; + } + break; + default: + break; + } + } + + // end_array, begin_array, string_value (headers) + void after_record(std::error_code& ec) + { + if (column_types_.size() > 0) + { + if (level_ > 0) + { + more_ = visitor_->end_array(*this, ec); + level_ = 0; + } + } + switch (stack_.back()) + { + case csv_mode::header: + if (line_ >= options_.header_lines()) + { + stack_.back() = csv_mode::data; + } + switch (options_.mapping_kind()) + { + case csv_mapping_kind::n_rows: + if (options_.assume_header()) + { + more_ = visitor_->end_array(*this, ec); + } + break; + case csv_mapping_kind::m_columns: + m_columns_filter_.initialize(column_names_); + break; + default: + break; + } + break; + case csv_mode::data: + case csv_mode::subfields: + { + switch (options_.mapping_kind()) + { + case csv_mapping_kind::n_rows: + more_ = visitor_->end_array(*this, ec); + break; + case csv_mapping_kind::n_objects: + more_ = visitor_->end_object(*this, ec); + break; + case csv_mapping_kind::m_columns: + more_ = visitor_->end_array(*this, ec); + break; + } + break; + } + default: + break; + } + column_index_ = 0; + } + + void trim_string_buffer(bool trim_leading, bool trim_trailing) + { + std::size_t start = 0; + std::size_t length = buffer_.length(); + if (trim_leading) + { + bool done = false; + while (!done && start < buffer_.length()) + { + if ((buffer_[start] < 256) && std::isspace(buffer_[start])) + { + ++start; + } + else + { + done = true; + } + } + } + if (trim_trailing) + { + bool done = false; + while (!done && length > 0) + { + if ((buffer_[length-1] < 256) && std::isspace(buffer_[length-1])) + { + --length; + } + else + { + done = true; + } + } + } + if (start != 0 || length != buffer_.size()) + { + buffer_ = buffer_.substr(start,length-start); + } + } + + /* + end_array, begin_array, xxx_value (end_value) + */ + void end_unquoted_string_value(std::error_code& ec) + { + switch (stack_.back()) + { + case csv_mode::data: + case csv_mode::subfields: + switch (options_.mapping_kind()) + { + case csv_mapping_kind::n_rows: + if (options_.unquoted_empty_value_is_null() && buffer_.length() == 0) + { + more_ = visitor_->null_value(semantic_tag::none, *this, ec); + } + else + { + end_value(options_.infer_types(), ec); + } + break; + case csv_mapping_kind::n_objects: + if (!(options_.ignore_empty_values() && buffer_.empty())) + { + if (column_index_ < column_names_.size() + offset_) + { + if (options_.unquoted_empty_value_is_null() && buffer_.length() == 0) + { + more_ = visitor_->null_value(semantic_tag::none, *this, ec); + } + else + { + end_value(options_.infer_types(), ec); + } + } + else if (level_ > 0) + { + if (options_.unquoted_empty_value_is_null() && buffer_.length() == 0) + { + more_ = visitor_->null_value(semantic_tag::none, *this, ec); + } + else + { + end_value(options_.infer_types(), ec); + } + } + } + break; + case csv_mapping_kind::m_columns: + if (!(options_.ignore_empty_values() && buffer_.empty())) + { + end_value(options_.infer_types(), ec); + } + else + { + m_columns_filter_.skip_column(); + } + break; + } + break; + default: + break; + } + } + + void end_quoted_string_value(std::error_code& ec) + { + switch (stack_.back()) + { + case csv_mode::data: + case csv_mode::subfields: + if (options_.trim_leading_inside_quotes() || options_.trim_trailing_inside_quotes()) + { + trim_string_buffer(options_.trim_leading_inside_quotes(),options_.trim_trailing_inside_quotes()); + } + switch (options_.mapping_kind()) + { + case csv_mapping_kind::n_rows: + end_value(false, ec); + break; + case csv_mapping_kind::n_objects: + if (!(options_.ignore_empty_values() && buffer_.empty())) + { + if (column_index_ < column_names_.size() + offset_) + { + if (options_.unquoted_empty_value_is_null() && buffer_.length() == 0) + { + more_ = visitor_->null_value(semantic_tag::none, *this, ec); + } + else + { + end_value(false, ec); + } + } + else if (level_ > 0) + { + if (options_.unquoted_empty_value_is_null() && buffer_.length() == 0) + { + more_ = visitor_->null_value(semantic_tag::none, *this, ec); + } + else + { + end_value(false, ec); + } + } + } + break; + case csv_mapping_kind::m_columns: + if (!(options_.ignore_empty_values() && buffer_.empty())) + { + end_value(false, ec); + } + else + { + m_columns_filter_.skip_column(); + } + break; + } + break; + default: + break; + } + } + + void end_value(bool infer_types, std::error_code& ec) + { + auto it = std::find_if(string_double_map_.begin(), string_double_map_.end(), string_maps_to_double{ buffer_ }); + if (it != string_double_map_.end()) + { + more_ = visitor_->double_value(it->second, semantic_tag::none, *this, ec); + } + else if (column_index_ < column_types_.size() + offset_) + { + if (column_types_[column_index_ - offset_].col_type == csv_column_type::repeat_t) + { + offset_ = offset_ + column_types_[column_index_ - offset_].rep_count; + if (column_index_ - offset_ + 1 < column_types_.size()) + { + if (column_index_ == offset_ || level_ > column_types_[column_index_-offset_].level) + { + more_ = visitor_->end_array(*this, ec); + } + level_ = column_index_ == offset_ ? 0 : column_types_[column_index_ - offset_].level; + } + } + if (level_ < column_types_[column_index_ - offset_].level) + { + more_ = visitor_->begin_array(semantic_tag::none, *this, ec); + level_ = column_types_[column_index_ - offset_].level; + } + else if (level_ > column_types_[column_index_ - offset_].level) + { + more_ = visitor_->end_array(*this, ec); + level_ = column_types_[column_index_ - offset_].level; + } + switch (column_types_[column_index_ - offset_].col_type) + { + case csv_column_type::integer_t: + { + std::basic_istringstream,char_allocator_type> iss{buffer_}; + int64_t val; + iss >> val; + if (!iss.fail()) + { + more_ = visitor_->int64_value(val, semantic_tag::none, *this, ec); + } + else + { + if (column_index_ - offset_ < column_defaults_.size() && column_defaults_[column_index_ - offset_].length() > 0) + { + basic_json_parser parser(alloc_); + parser.update(column_defaults_[column_index_ - offset_].data(),column_defaults_[column_index_ - offset_].length()); + parser.parse_some(*visitor_); + parser.finish_parse(*visitor_); + } + else + { + more_ = visitor_->null_value(semantic_tag::none, *this, ec); + } + } + } + break; + case csv_column_type::float_t: + { + if (options_.lossless_number()) + { + more_ = visitor_->string_value(buffer_,semantic_tag::bigdec, *this, ec); + } + else + { + std::basic_istringstream, char_allocator_type> iss{ buffer_ }; + double val; + iss >> val; + if (!iss.fail()) + { + more_ = visitor_->double_value(val, semantic_tag::none, *this, ec); + } + else + { + if (column_index_ - offset_ < column_defaults_.size() && column_defaults_[column_index_ - offset_].length() > 0) + { + basic_json_parser parser(alloc_); + parser.update(column_defaults_[column_index_ - offset_].data(),column_defaults_[column_index_ - offset_].length()); + parser.parse_some(*visitor_); + parser.finish_parse(*visitor_); + } + else + { + more_ = visitor_->null_value(semantic_tag::none, *this, ec); + } + } + } + } + break; + case csv_column_type::boolean_t: + { + if (buffer_.length() == 1 && buffer_[0] == '0') + { + more_ = visitor_->bool_value(false, semantic_tag::none, *this, ec); + } + else if (buffer_.length() == 1 && buffer_[0] == '1') + { + more_ = visitor_->bool_value(true, semantic_tag::none, *this, ec); + } + else if (buffer_.length() == 5 && ((buffer_[0] == 'f' || buffer_[0] == 'F') && (buffer_[1] == 'a' || buffer_[1] == 'A') && (buffer_[2] == 'l' || buffer_[2] == 'L') && (buffer_[3] == 's' || buffer_[3] == 'S') && (buffer_[4] == 'e' || buffer_[4] == 'E'))) + { + more_ = visitor_->bool_value(false, semantic_tag::none, *this, ec); + } + else if (buffer_.length() == 4 && ((buffer_[0] == 't' || buffer_[0] == 'T') && (buffer_[1] == 'r' || buffer_[1] == 'R') && (buffer_[2] == 'u' || buffer_[2] == 'U') && (buffer_[3] == 'e' || buffer_[3] == 'E'))) + { + more_ = visitor_->bool_value(true, semantic_tag::none, *this, ec); + } + else + { + if (column_index_ - offset_ < column_defaults_.size() && column_defaults_[column_index_ - offset_].length() > 0) + { + basic_json_parser parser(alloc_); + parser.update(column_defaults_[column_index_ - offset_].data(),column_defaults_[column_index_ - offset_].length()); + parser.parse_some(*visitor_); + parser.finish_parse(*visitor_); + } + else + { + more_ = visitor_->null_value(semantic_tag::none, *this, ec); + } + } + } + break; + default: + if (buffer_.length() > 0) + { + more_ = visitor_->string_value(buffer_, semantic_tag::none, *this, ec); + } + else + { + if (column_index_ < column_defaults_.size() + offset_ && column_defaults_[column_index_ - offset_].length() > 0) + { + basic_json_parser parser(alloc_); + parser.update(column_defaults_[column_index_ - offset_].data(),column_defaults_[column_index_ - offset_].length()); + parser.parse_some(*visitor_); + parser.finish_parse(*visitor_); + } + else + { + more_ = visitor_->string_value(string_view_type(), semantic_tag::none, *this, ec); + } + } + break; + } + } + else + { + if (infer_types) + { + end_value_with_numeric_check(ec); + } + else + { + more_ = visitor_->string_value(buffer_, semantic_tag::none, *this, ec); + } + } + } + + enum class numeric_check_state + { + initial, + null, + boolean_true, + boolean_false, + minus, + zero, + integer, + fraction1, + fraction, + exp1, + exp, + not_a_number + }; + + /* + xxx_value + */ + void end_value_with_numeric_check(std::error_code& ec) + { + numeric_check_state state = numeric_check_state::initial; + bool is_negative = false; + int precision = 0; + uint8_t decimal_places = 0; + + auto last = buffer_.end(); + + std::string buffer; + for (auto p = buffer_.begin(); state != numeric_check_state::not_a_number && p != last; ++p) + { + switch (state) + { + case numeric_check_state::initial: + { + switch (*p) + { + case 'n':case 'N': + if ((last-p) == 4 && (p[1] == 'u' || p[1] == 'U') && (p[2] == 'l' || p[2] == 'L') && (p[3] == 'l' || p[3] == 'L')) + { + state = numeric_check_state::null; + } + else + { + state = numeric_check_state::not_a_number; + } + break; + case 't':case 'T': + if ((last-p) == 4 && (p[1] == 'r' || p[1] == 'R') && (p[2] == 'u' || p[2] == 'U') && (p[3] == 'e' || p[3] == 'U')) + { + state = numeric_check_state::boolean_true; + } + else + { + state = numeric_check_state::not_a_number; + } + break; + case 'f':case 'F': + if ((last-p) == 5 && (p[1] == 'a' || p[1] == 'A') && (p[2] == 'l' || p[2] == 'L') && (p[3] == 's' || p[3] == 'S') && (p[4] == 'e' || p[4] == 'E')) + { + state = numeric_check_state::boolean_false; + } + else + { + state = numeric_check_state::not_a_number; + } + break; + case '-': + is_negative = true; + buffer.push_back(*p); + state = numeric_check_state::minus; + break; + case '0': + ++precision; + buffer.push_back(*p); + state = numeric_check_state::zero; + break; + case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8':case '9': + ++precision; + buffer.push_back(*p); + state = numeric_check_state::integer; + break; + default: + state = numeric_check_state::not_a_number; + break; + } + break; + } + case numeric_check_state::zero: + { + switch (*p) + { + case '.': + buffer.push_back(to_double_.get_decimal_point()); + state = numeric_check_state::fraction1; + break; + case 'e':case 'E': + buffer.push_back(*p); + state = numeric_check_state::exp1; + break; + default: + state = numeric_check_state::not_a_number; + break; + } + break; + } + case numeric_check_state::integer: + { + switch (*p) + { + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8':case '9': + ++precision; + buffer.push_back(*p); + break; + case '.': + buffer.push_back(to_double_.get_decimal_point()); + state = numeric_check_state::fraction1; + break; + case 'e':case 'E': + buffer.push_back(*p); + state = numeric_check_state::exp1; + break; + default: + state = numeric_check_state::not_a_number; + break; + } + break; + } + case numeric_check_state::minus: + { + switch (*p) + { + case '0': + ++precision; + buffer.push_back(*p); + state = numeric_check_state::zero; + break; + case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8':case '9': + ++precision; + buffer.push_back(*p); + state = numeric_check_state::integer; + break; + default: + state = numeric_check_state::not_a_number; + break; + } + break; + } + case numeric_check_state::fraction1: + { + switch (*p) + { + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8':case '9': + ++precision; + ++decimal_places; + buffer.push_back(*p); + state = numeric_check_state::fraction; + break; + default: + state = numeric_check_state::not_a_number; + break; + } + break; + } + case numeric_check_state::fraction: + { + switch (*p) + { + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8':case '9': + ++precision; + ++decimal_places; + buffer.push_back(*p); + break; + case 'e':case 'E': + buffer.push_back(*p); + state = numeric_check_state::exp1; + break; + default: + state = numeric_check_state::not_a_number; + break; + } + break; + } + case numeric_check_state::exp1: + { + switch (*p) + { + case '-': + buffer.push_back(*p); + break; + case '+': + break; + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8':case '9': + state = numeric_check_state::exp; + buffer.push_back(*p); + break; + default: + state = numeric_check_state::not_a_number; + break; + } + break; + } + case numeric_check_state::exp: + { + switch (*p) + { + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8':case '9': + buffer.push_back(*p); + break; + default: + state = numeric_check_state::not_a_number; + break; + } + break; + } + default: + break; + } + } + + switch (state) + { + case numeric_check_state::null: + more_ = visitor_->null_value(semantic_tag::none, *this, ec); + break; + case numeric_check_state::boolean_true: + more_ = visitor_->bool_value(true, semantic_tag::none, *this, ec); + break; + case numeric_check_state::boolean_false: + more_ = visitor_->bool_value(false, semantic_tag::none, *this, ec); + break; + case numeric_check_state::zero: + case numeric_check_state::integer: + { + if (is_negative) + { + int64_t val{ 0 }; + auto result = jsoncons::detail::to_integer_decimal(buffer_.data(), buffer_.length(), val); + if (result) + { + more_ = visitor_->int64_value(val, semantic_tag::none, *this, ec); + } + else // Must be overflow + { + more_ = visitor_->string_value(buffer_, semantic_tag::bigint, *this, ec); + } + } + else + { + uint64_t val{ 0 }; + auto result = jsoncons::detail::to_integer_decimal(buffer_.data(), buffer_.length(), val); + if (result) + { + more_ = visitor_->uint64_value(val, semantic_tag::none, *this, ec); + } + else if (result.ec == jsoncons::detail::to_integer_errc::overflow) + { + more_ = visitor_->string_value(buffer_, semantic_tag::bigint, *this, ec); + } + else + { + ec = result.ec; + more_ = false; + return; + } + } + break; + } + case numeric_check_state::fraction: + case numeric_check_state::exp: + { + if (options_.lossless_number()) + { + more_ = visitor_->string_value(buffer_,semantic_tag::bigdec, *this, ec); + } + else + { + double d = to_double_(buffer.c_str(), buffer.length()); + more_ = visitor_->double_value(d, semantic_tag::none, *this, ec); + } + break; + } + default: + { + more_ = visitor_->string_value(buffer_, semantic_tag::none, *this, ec); + break; + } + } + } + + void push_state(csv_parse_state state) + { + state_stack_.push_back(state); + } + + csv_parse_state pop_state() + { + JSONCONS_ASSERT(!state_stack_.empty()) + csv_parse_state state = state_stack_.back(); + state_stack_.pop_back(); + return state; + } +}; + +using csv_parser = basic_csv_parser; +using wcsv_parser = basic_csv_parser; + +}} + +#endif + diff --git a/include/jsoncons_ext/csv/csv_reader.hpp b/include/jsoncons_ext/csv/csv_reader.hpp new file mode 100644 index 0000000..f10211a --- /dev/null +++ b/include/jsoncons_ext/csv/csv_reader.hpp @@ -0,0 +1,348 @@ +// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_CSV_CSV_READER_HPP +#define JSONCONS_CSV_CSV_READER_HPP + +#include +#include +#include +#include // std::allocator +#include // std::move +#include // std::basic_istream +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +namespace jsoncons { namespace csv { + + template,class Allocator=std::allocator> + class basic_csv_reader + { + struct stack_item + { + stack_item() noexcept + : array_begun_(false) + { + } + + bool array_begun_; + }; + using char_type = CharT; + using temp_allocator_type = Allocator; + typedef typename std::allocator_traits:: template rebind_alloc char_allocator_type; + + basic_csv_reader(const basic_csv_reader&) = delete; + basic_csv_reader& operator = (const basic_csv_reader&) = delete; + + basic_default_json_visitor default_visitor_; + text_source_adaptor source_; + basic_json_visitor& visitor_; + basic_csv_parser parser_; + + public: + // Structural characters + static constexpr size_t default_max_buffer_size = 16384; + //! Parse an input stream of CSV text into a json object + /*! + \param is The input stream to read from + */ + + template + basic_csv_reader(Sourceable&& source, + basic_json_visitor& visitor, + const Allocator& alloc = Allocator()) + + : basic_csv_reader(std::forward(source), + visitor, + basic_csv_decode_options(), + default_csv_parsing(), + alloc) + { + } + + template + basic_csv_reader(Sourceable&& source, + basic_json_visitor& visitor, + const basic_csv_decode_options& options, + const Allocator& alloc = Allocator()) + + : basic_csv_reader(std::forward(source), + visitor, + options, + default_csv_parsing(), + alloc) + { + } + + template + basic_csv_reader(Sourceable&& source, + basic_json_visitor& visitor, + std::function err_handler, + const Allocator& alloc = Allocator()) + : basic_csv_reader(std::forward(source), + visitor, + basic_csv_decode_options(), + err_handler, + alloc) + { + } + + template + basic_csv_reader(Sourceable&& source, + basic_json_visitor& visitor, + const basic_csv_decode_options& options, + std::function err_handler, + const Allocator& alloc = Allocator()) + : source_(std::forward(source)), + visitor_(visitor), + parser_(options, err_handler, alloc) + + { + } + + ~basic_csv_reader() noexcept = default; + + void read() + { + std::error_code ec; + read(ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec,parser_.line(),parser_.column())); + } + } + + void read(std::error_code& ec) + { + read_internal(ec); + } + + std::size_t line() const + { + return parser_.line(); + } + + std::size_t column() const + { + return parser_.column(); + } + + bool eof() const + { + return parser_.source_exhausted() && source_.eof(); + } + + private: + + void read_internal(std::error_code& ec) + { + if (source_.is_error()) + { + ec = csv_errc::source_error; + return; + } + while (!parser_.stopped()) + { + if (parser_.source_exhausted()) + { + auto s = source_.read_buffer(ec); + if (ec) return; + if (s.size() > 0) + { + parser_.update(s.data(),s.size()); + } + } + parser_.parse_some(visitor_, ec); + if (ec) return; + } + } + }; + + template,class Allocator=std::allocator> + class legacy_basic_csv_reader + { + struct stack_item + { + stack_item() noexcept + : array_begun_(false) + { + } + + bool array_begun_; + }; + using char_type = CharT; + using temp_allocator_type = Allocator; + typedef typename std::allocator_traits:: template rebind_alloc char_allocator_type; + + legacy_basic_csv_reader(const legacy_basic_csv_reader&) = delete; + legacy_basic_csv_reader& operator = (const legacy_basic_csv_reader&) = delete; + + basic_default_json_visitor default_visitor_; + text_source_adaptor source_; + basic_json_visitor& visitor_; + basic_csv_parser parser_; + + public: + // Structural characters + static constexpr size_t default_max_buffer_size = 16384; + //! Parse an input stream of CSV text into a json object + /*! + \param is The input stream to read from + */ + + template + legacy_basic_csv_reader(Sourceable&& source, + basic_json_visitor& visitor, + const Allocator& alloc = Allocator()) + + : legacy_basic_csv_reader(std::forward(source), + visitor, + basic_csv_decode_options(), + default_csv_parsing(), + alloc) + { + } + + template + legacy_basic_csv_reader(Sourceable&& source, + basic_json_visitor& visitor, + const basic_csv_decode_options& options, + const Allocator& alloc = Allocator()) + + : legacy_basic_csv_reader(std::forward(source), + visitor, + options, + default_csv_parsing(), + alloc) + { + } + + template + legacy_basic_csv_reader(Sourceable&& source, + basic_json_visitor& visitor, + std::function err_handler, + const Allocator& alloc = Allocator()) + : legacy_basic_csv_reader(std::forward(source), + visitor, + basic_csv_decode_options(), + err_handler, + alloc) + { + } + + template + legacy_basic_csv_reader(Sourceable&& source, + basic_json_visitor& visitor, + const basic_csv_decode_options& options, + std::function err_handler, + const Allocator& alloc = Allocator(), + typename std::enable_if,Sourceable>::value>::type* = 0) + : source_(std::forward(source)), + visitor_(visitor), + parser_(options, err_handler, alloc) + { + } + + template + legacy_basic_csv_reader(Sourceable&& source, + basic_json_visitor& visitor, + const basic_csv_decode_options& options, + std::function err_handler, + const Allocator& alloc = Allocator(), + typename std::enable_if,Sourceable>::value>::type* = 0) + : source_(), + visitor_(visitor), + parser_(options, err_handler, alloc) + { + jsoncons::basic_string_view sv(std::forward(source)); + auto r = unicode_traits::detect_encoding_from_bom(sv.data(), sv.size()); + if (!(r.encoding == unicode_traits::encoding_kind::utf8 || r.encoding == unicode_traits::encoding_kind::undetected)) + { + JSONCONS_THROW(ser_error(json_errc::illegal_unicode_character,parser_.line(),parser_.column())); + } + std::size_t offset = (r.ptr - sv.data()); + parser_.update(sv.data()+offset,sv.size()-offset); + } + + ~legacy_basic_csv_reader() noexcept = default; + + void read() + { + std::error_code ec; + read(ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec,parser_.line(),parser_.column())); + } + } + + void read(std::error_code& ec) + { + read_internal(ec); + } + + std::size_t line() const + { + return parser_.line(); + } + + std::size_t column() const + { + return parser_.column(); + } + + bool eof() const + { + return parser_.source_exhausted() && source_.eof(); + } + + private: + + void read_internal(std::error_code& ec) + { + if (source_.is_error()) + { + ec = csv_errc::source_error; + return; + } + while (!parser_.stopped()) + { + if (parser_.source_exhausted()) + { + auto s = source_.read_buffer(ec); + if (ec) return; + if (s.size() > 0) + { + parser_.update(s.data(),s.size()); + } + } + parser_.parse_some(visitor_, ec); + if (ec) return; + } + } + }; + +#if !defined(JSONCONS_NO_DEPRECATED) + using csv_reader = legacy_basic_csv_reader; + using wcsv_reader = legacy_basic_csv_reader; +#endif + + using csv_string_reader = basic_csv_reader>; + using wcsv_string_reader = basic_csv_reader>; + using csv_stream_reader = basic_csv_reader>; + using wcsv_stream_reader = basic_csv_reader>; + +}} + +#endif diff --git a/include/jsoncons_ext/csv/csv_serializer.hpp b/include/jsoncons_ext/csv/csv_serializer.hpp new file mode 100644 index 0000000..ec73510 --- /dev/null +++ b/include/jsoncons_ext/csv/csv_serializer.hpp @@ -0,0 +1,12 @@ +// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_CSV_CSV_SERIALIZER_HPP +#define JSONCONS_CSV_CSV_SERIALIZER_HPP + +#include + +#endif diff --git a/include/jsoncons_ext/csv/decode_csv.hpp b/include/jsoncons_ext/csv/decode_csv.hpp new file mode 100644 index 0000000..b91c58b --- /dev/null +++ b/include/jsoncons_ext/csv/decode_csv.hpp @@ -0,0 +1,208 @@ +/// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_CSV_DECODE_CSV_HPP +#define JSONCONS_CSV_DECODE_CSV_HPP + +#include +#include +#include +#include + +namespace jsoncons { +namespace csv { + + template + typename std::enable_if::value && + type_traits::is_sequence_of::value,T>::type + decode_csv(const Source& s, const basic_csv_decode_options& options = basic_csv_decode_options()) + { + using char_type = typename Source::value_type; + + json_decoder decoder; + + basic_csv_reader> reader(s,decoder,options); + reader.read(); + if (!decoder.is_valid()) + { + JSONCONS_THROW(ser_error(conv_errc::conversion_failed, reader.line(), reader.column())); + } + return decoder.get_result(); + } + + template + typename std::enable_if::value && + type_traits::is_char_sequence::value,T>::type + decode_csv(const Source& s, const basic_csv_decode_options& options = basic_csv_decode_options()) + { + using char_type = typename Source::value_type; + + basic_csv_cursor cursor(s, options); + jsoncons::json_decoder> decoder; + + std::error_code ec; + T val = decode_traits::decode(cursor, decoder, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, cursor.context().line(), cursor.context().column())); + } + return val; + } + + template + typename std::enable_if::value,T>::type + decode_csv(std::basic_istream& is, const basic_csv_decode_options& options = basic_csv_decode_options()) + { + using char_type = CharT; + + json_decoder decoder; + + basic_csv_reader> reader(is,decoder,options); + reader.read(); + if (!decoder.is_valid()) + { + JSONCONS_THROW(ser_error(conv_errc::conversion_failed, reader.line(), reader.column())); + } + return decoder.get_result(); + } + + template + typename std::enable_if::value,T>::type + decode_csv(std::basic_istream& is, const basic_csv_decode_options& options = basic_csv_decode_options()) + { + basic_csv_cursor cursor(is, options); + jsoncons::json_decoder> decoder; + + std::error_code ec; + T val = decode_traits::decode(cursor, decoder, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, cursor.context().line(), cursor.context().column())); + } + return val; + } + + template + typename std::enable_if::value,T>::type + decode_csv(InputIt first, InputIt last, + const basic_csv_decode_options::value_type>& options = + basic_csv_decode_options::value_type>()) + { + using char_type = typename std::iterator_traits::value_type; + + jsoncons::json_decoder decoder; + basic_csv_reader> reader(iterator_source(first,last), decoder, options); + reader.read(); + if (!decoder.is_valid()) + { + JSONCONS_THROW(ser_error(conv_errc::conversion_failed, reader.line(), reader.column())); + } + return decoder.get_result(); + } + + template + typename std::enable_if::value,T>::type + decode_csv(InputIt first, InputIt last, + const basic_csv_decode_options::value_type>& options = + basic_csv_decode_options::value_type>()) + { + using char_type = typename std::iterator_traits::value_type; + + basic_csv_cursor> cursor(iterator_source(first, last), options); + jsoncons::json_decoder> decoder; + std::error_code ec; + T val = decode_traits::decode(cursor, decoder, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, cursor.context().line(), cursor.context().column())); + } + return val; + } + + // With leading allocator parameter + + template + typename std::enable_if::value && + type_traits::is_sequence_of::value,T>::type + decode_csv(temp_allocator_arg_t, const TempAllocator& temp_alloc, + const Source& s, + const basic_csv_decode_options& options = basic_csv_decode_options()) + { + using char_type = typename Source::value_type; + + json_decoder decoder(temp_alloc); + + basic_csv_reader,TempAllocator> reader(s,decoder,options,temp_alloc); + reader.read(); + if (!decoder.is_valid()) + { + JSONCONS_THROW(ser_error(conv_errc::conversion_failed, reader.line(), reader.column())); + } + return decoder.get_result(); + } + + template + typename std::enable_if::value && + type_traits::is_char_sequence::value,T>::type + decode_csv(temp_allocator_arg_t, const TempAllocator& temp_alloc, + const Source& s, + const basic_csv_decode_options& options = basic_csv_decode_options()) + { + using char_type = typename Source::value_type; + + basic_csv_cursor,TempAllocator> cursor(s, options, temp_alloc); + json_decoder,TempAllocator> decoder(temp_alloc, temp_alloc); + + std::error_code ec; + T val = decode_traits::decode(cursor, decoder, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, cursor.context().line(), cursor.context().column())); + } + return val; + } + + template + typename std::enable_if::value,T>::type + decode_csv(temp_allocator_arg_t, const TempAllocator& temp_alloc, + std::basic_istream& is, + const basic_csv_decode_options& options = basic_csv_decode_options()) + { + using char_type = CharT; + + json_decoder decoder(temp_alloc); + + basic_csv_reader,TempAllocator> reader(is,decoder,options,temp_alloc); + reader.read(); + if (!decoder.is_valid()) + { + JSONCONS_THROW(ser_error(conv_errc::conversion_failed, reader.line(), reader.column())); + } + return decoder.get_result(); + } + + template + typename std::enable_if::value,T>::type + decode_csv(temp_allocator_arg_t, const TempAllocator& temp_alloc, + std::basic_istream& is, + const basic_csv_decode_options& options = basic_csv_decode_options()) + { + basic_csv_cursor,TempAllocator> cursor(is, options, temp_alloc); + json_decoder,TempAllocator> decoder(temp_alloc, temp_alloc); + + std::error_code ec; + T val = decode_traits::decode(cursor, decoder, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, cursor.context().line(), cursor.context().column())); + } + return val; + } + +} // namespace csv +} // namespace jsoncons + +#endif diff --git a/include/jsoncons_ext/csv/encode_csv.hpp b/include/jsoncons_ext/csv/encode_csv.hpp new file mode 100644 index 0000000..d919253 --- /dev/null +++ b/include/jsoncons_ext/csv/encode_csv.hpp @@ -0,0 +1,122 @@ +/// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_CSV_ENCODE_CSV_HPP +#define JSONCONS_CSV_ENCODE_CSV_HPP + +#include +#include +#include + +namespace jsoncons { +namespace csv { + + template + typename std::enable_if::value && + type_traits::is_back_insertable_char_container::value>::type + encode_csv(const T& j, Container& s, const basic_csv_encode_options& options = basic_csv_encode_options()) + { + using char_type = typename Container::value_type; + basic_csv_encoder>> encoder(s,options); + j.dump(encoder); + } + + template + typename std::enable_if::value && + type_traits::is_back_insertable_char_container::value>::type + encode_csv(const T& val, Container& s, const basic_csv_encode_options& options = basic_csv_encode_options()) + { + using char_type = typename Container::value_type; + basic_csv_encoder>> encoder(s,options); + std::error_code ec; + encode_traits::encode(val, encoder, json(), ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec)); + } + } + + template + typename std::enable_if::value,void>::type + encode_csv(const T& j, std::basic_ostream& os, const basic_csv_encode_options& options = basic_csv_encode_options()) + { + using char_type = CharT; + basic_csv_encoder> encoder(os,options); + j.dump(encoder); + } + + template + typename std::enable_if::value,void>::type + encode_csv(const T& val, std::basic_ostream& os, const basic_csv_encode_options& options = basic_csv_encode_options()) + { + using char_type = CharT; + basic_csv_encoder> encoder(os,options); + std::error_code ec; + encode_traits::encode(val, encoder, json(), ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec)); + } + } + + // with temp_allocator_arg_t + + template + typename std::enable_if::value && + type_traits::is_back_insertable_char_container::value>::type + encode_csv(temp_allocator_arg_t, const TempAllocator& temp_alloc, + const T& j, Container& s, const basic_csv_encode_options& options = basic_csv_encode_options()) + { + using char_type = typename Container::value_type; + basic_csv_encoder>,TempAllocator> encoder(s, options, temp_alloc); + j.dump(encoder); + } + + template + typename std::enable_if::value && + type_traits::is_back_insertable_char_container::value>::type + encode_csv(temp_allocator_arg_t, const TempAllocator& temp_alloc, + const T& val, Container& s, const basic_csv_encode_options& options = basic_csv_encode_options()) + { + using char_type = typename Container::value_type; + basic_csv_encoder>,TempAllocator> encoder(s, options, temp_alloc); + std::error_code ec; + encode_traits::encode(val, encoder, json(), ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec)); + } + } + + template + typename std::enable_if::value,void>::type + encode_csv(temp_allocator_arg_t, const TempAllocator& temp_alloc, + const T& j, std::basic_ostream& os, const basic_csv_encode_options& options = basic_csv_encode_options()) + { + using char_type = CharT; + basic_csv_encoder,TempAllocator> encoder(os, options, temp_alloc); + j.dump(encoder); + } + + template + typename std::enable_if::value,void>::type + encode_csv(temp_allocator_arg_t, const TempAllocator& temp_alloc, + const T& val, std::basic_ostream& os, const basic_csv_encode_options& options = basic_csv_encode_options()) + { + using char_type = CharT; + basic_csv_encoder,TempAllocator> encoder(os, options, temp_alloc); + std::error_code ec; + encode_traits::encode(val, encoder, json(), ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec)); + } + } + +} // namespace csv +} // namespace jsoncons + +#endif diff --git a/include/jsoncons_ext/jmespath/jmespath.hpp b/include/jsoncons_ext/jmespath/jmespath.hpp new file mode 100644 index 0000000..69458cd --- /dev/null +++ b/include/jsoncons_ext/jmespath/jmespath.hpp @@ -0,0 +1,5215 @@ +// Copyright 2020 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JMESPATH_JMESPATH_HPP +#define JSONCONS_JMESPATH_JMESPATH_HPP + +#include +#include +#include // std::unordered_map +#include +#include // std::is_const +#include // std::numeric_limits +#include // std::move +#include // +#include // std::stable_sort, std::reverse +#include // std::abs +#include +#include + +namespace jsoncons { +namespace jmespath { + + enum class operator_kind + { + default_op, // Identifier, CurrentNode, Index, MultiSelectList, MultiSelectHash, FunctionExpression + projection_op, + flatten_projection_op, // FlattenProjection + or_op, + and_op, + eq_op, + ne_op, + lt_op, + lte_op, + gt_op, + gte_op, + not_op + }; + + struct operator_table final + { + static int precedence_level(operator_kind oper) + { + switch (oper) + { + case operator_kind::projection_op: + return 11; + case operator_kind::flatten_projection_op: + return 11; + case operator_kind::or_op: + return 9; + case operator_kind::and_op: + return 8; + case operator_kind::eq_op: + case operator_kind::ne_op: + return 6; + case operator_kind::lt_op: + case operator_kind::lte_op: + case operator_kind::gt_op: + case operator_kind::gte_op: + return 5; + case operator_kind::not_op: + return 1; + default: + return 1; + } + } + + static bool is_right_associative(operator_kind oper) + { + switch (oper) + { + case operator_kind::not_op: + return true; + case operator_kind::projection_op: + return true; + case operator_kind::flatten_projection_op: + return false; + case operator_kind::or_op: + case operator_kind::and_op: + case operator_kind::eq_op: + case operator_kind::ne_op: + case operator_kind::lt_op: + case operator_kind::lte_op: + case operator_kind::gt_op: + case operator_kind::gte_op: + return false; + default: + return false; + } + } + }; + + enum class token_kind + { + current_node, + lparen, + rparen, + begin_multi_select_hash, + end_multi_select_hash, + begin_multi_select_list, + end_multi_select_list, + begin_filter, + end_filter, + pipe, + separator, + key, + literal, + expression, + binary_operator, + unary_operator, + function, + end_function, + argument, + begin_expression_type, + end_expression_type, + end_of_expression + }; + + struct literal_arg_t + { + explicit literal_arg_t() = default; + }; + constexpr literal_arg_t literal_arg{}; + + struct begin_expression_type_arg_t + { + explicit begin_expression_type_arg_t() = default; + }; + constexpr begin_expression_type_arg_t begin_expression_type_arg{}; + + struct end_expression_type_arg_t + { + explicit end_expression_type_arg_t() = default; + }; + constexpr end_expression_type_arg_t end_expression_type_arg{}; + + struct end_of_expression_arg_t + { + explicit end_of_expression_arg_t() = default; + }; + constexpr end_of_expression_arg_t end_of_expression_arg{}; + + struct separator_arg_t + { + explicit separator_arg_t() = default; + }; + constexpr separator_arg_t separator_arg{}; + + struct key_arg_t + { + explicit key_arg_t() = default; + }; + constexpr key_arg_t key_arg{}; + + struct lparen_arg_t + { + explicit lparen_arg_t() = default; + }; + constexpr lparen_arg_t lparen_arg{}; + + struct rparen_arg_t + { + explicit rparen_arg_t() = default; + }; + constexpr rparen_arg_t rparen_arg{}; + + struct begin_multi_select_hash_arg_t + { + explicit begin_multi_select_hash_arg_t() = default; + }; + constexpr begin_multi_select_hash_arg_t begin_multi_select_hash_arg{}; + + struct end_multi_select_hash_arg_t + { + explicit end_multi_select_hash_arg_t() = default; + }; + constexpr end_multi_select_hash_arg_t end_multi_select_hash_arg{}; + + struct begin_multi_select_list_arg_t + { + explicit begin_multi_select_list_arg_t() = default; + }; + constexpr begin_multi_select_list_arg_t begin_multi_select_list_arg{}; + + struct end_multi_select_list_arg_t + { + explicit end_multi_select_list_arg_t() = default; + }; + constexpr end_multi_select_list_arg_t end_multi_select_list_arg{}; + + struct begin_filter_arg_t + { + explicit begin_filter_arg_t() = default; + }; + constexpr begin_filter_arg_t begin_filter_arg{}; + + struct end_filter_arg_t + { + explicit end_filter_arg_t() = default; + }; + constexpr end_filter_arg_t end_filter_arg{}; + + struct pipe_arg_t + { + explicit pipe_arg_t() = default; + }; + constexpr pipe_arg_t pipe_arg{}; + + struct current_node_arg_t + { + explicit current_node_arg_t() = default; + }; + constexpr current_node_arg_t current_node_arg{}; + + struct end_function_arg_t + { + explicit end_function_arg_t() = default; + }; + constexpr end_function_arg_t end_function_arg{}; + + struct argument_arg_t + { + explicit argument_arg_t() = default; + }; + constexpr argument_arg_t argument_arg{}; + + struct slice + { + jsoncons::optional start_; + jsoncons::optional stop_; + int64_t step_; + + slice() + : start_(), stop_(), step_(1) + { + } + + slice(const jsoncons::optional& start, const jsoncons::optional& end, int64_t step) + : start_(start), stop_(end), step_(step) + { + } + + slice(const slice& other) + : start_(other.start_), stop_(other.stop_), step_(other.step_) + { + } + + slice& operator=(const slice& rhs) + { + if (this != &rhs) + { + if (rhs.start_) + { + start_ = rhs.start_; + } + else + { + start_.reset(); + } + if (rhs.stop_) + { + stop_ = rhs.stop_; + } + else + { + stop_.reset(); + } + step_ = rhs.step_; + } + return *this; + } + + int64_t get_start(std::size_t size) const + { + if (start_) + { + auto len = *start_ >= 0 ? *start_ : (static_cast(size) + *start_); + return len <= static_cast(size) ? len : static_cast(size); + } + else + { + if (step_ >= 0) + { + return 0; + } + else + { + return static_cast(size); + } + } + } + + int64_t get_stop(std::size_t size) const + { + if (stop_) + { + auto len = *stop_ >= 0 ? *stop_ : (static_cast(size) + *stop_); + return len <= static_cast(size) ? len : static_cast(size); + } + else + { + return step_ >= 0 ? static_cast(size) : -1; + } + } + + int64_t step() const + { + return step_; // Allow negative + } + }; + + namespace detail { + + enum class path_state + { + start, + lhs_expression, + rhs_expression, + sub_expression, + expression_type, + comparator_expression, + function_expression, + argument, + expression_or_expression_type, + quoted_string, + raw_string, + raw_string_escape_char, + quoted_string_escape_char, + escape_u1, + escape_u2, + escape_u3, + escape_u4, + escape_expect_surrogate_pair1, + escape_expect_surrogate_pair2, + escape_u5, + escape_u6, + escape_u7, + escape_u8, + literal, + key_expr, + val_expr, + identifier_or_function_expr, + unquoted_string, + key_val_expr, + number, + digit, + index_or_slice_expression, + bracket_specifier, + bracket_specifier_or_multi_select_list, + filter, + multi_select_list, + multi_select_hash, + rhs_slice_expression_stop, + rhs_slice_expression_step, + expect_rbracket, + expect_rparen, + expect_dot, + expect_rbrace, + expect_colon, + expect_multi_select_list, + cmp_lt_or_lte, + cmp_eq, + cmp_gt_or_gte, + cmp_ne, + expect_pipe_or_or, + expect_and + }; + + // dynamic_resources + + template + class dynamic_resources + { + typedef typename Json::char_type char_type; + typedef typename Json::char_traits_type char_traits_type; + typedef std::basic_string string_type; + typedef typename Json::string_view_type string_view_type; + typedef JsonReference reference; + using pointer = typename std::conditional::type>::value,typename Json::const_pointer,typename Json::pointer>::type; + typedef typename Json::const_pointer const_pointer; + + std::vector> temp_storage_; + + public: + ~dynamic_resources() + { + } + + reference number_type_name() + { + static Json number_type_name(JSONCONS_STRING_CONSTANT(char_type, "number")); + + return number_type_name; + } + + reference boolean_type_name() + { + static Json boolean_type_name(JSONCONS_STRING_CONSTANT(char_type, "boolean")); + + return boolean_type_name; + } + + reference string_type_name() + { + static Json string_type_name(JSONCONS_STRING_CONSTANT(char_type, "string")); + + return string_type_name; + } + + reference object_type_name() + { + static Json object_type_name(JSONCONS_STRING_CONSTANT(char_type, "object")); + + return object_type_name; + } + + reference array_type_name() + { + static Json array_type_name(JSONCONS_STRING_CONSTANT(char_type, "array")); + + return array_type_name; + } + + reference null_type_name() + { + static Json null_type_name(JSONCONS_STRING_CONSTANT(char_type, "null")); + + return null_type_name; + } + + reference true_value() const + { + static const Json true_value(true, semantic_tag::none); + return true_value; + } + + reference false_value() const + { + static const Json false_value(false, semantic_tag::none); + return false_value; + } + + reference null_value() const + { + static const Json null_value(null_type(), semantic_tag::none); + return null_value; + } + + template + Json* create_json(Args&& ... args) + { + auto temp = jsoncons::make_unique(std::forward(args)...); + Json* ptr = temp.get(); + temp_storage_.emplace_back(std::move(temp)); + return ptr; + } + }; + + template + class jmespath_evaluator + { + public: + typedef typename Json::char_type char_type; + typedef typename Json::char_traits_type char_traits_type; + typedef std::basic_string string_type; + typedef typename Json::string_view_type string_view_type; + typedef JsonReference reference; + using pointer = typename std::conditional::type>::value,typename Json::const_pointer,typename Json::pointer>::type; + typedef typename Json::const_pointer const_pointer; + + static bool is_false(reference ref) + { + return (ref.is_array() && ref.empty()) || + (ref.is_object() && ref.empty()) || + (ref.is_string() && ref.as_string_view().size() == 0) || + (ref.is_bool() && !ref.as_bool()) || + ref.is_null(); + } + + static bool is_true(reference ref) + { + return !is_false(ref); + } + + class unary_operator + { + std::size_t precedence_level_; + bool is_right_associative_; + + protected: + ~unary_operator() = default; // virtual destructor not needed + public: + unary_operator(operator_kind oper) + : precedence_level_(operator_table::precedence_level(oper)), + is_right_associative_(operator_table::is_right_associative(oper)) + { + } + + std::size_t precedence_level() const + { + return precedence_level_; + } + bool is_right_associative() const + { + return is_right_associative_; + } + + virtual reference evaluate(reference val, dynamic_resources&, std::error_code& ec) const = 0; + }; + + class not_expression final : public unary_operator + { + public: + not_expression() + : unary_operator(operator_kind::not_op) + {} + + reference evaluate(reference val, dynamic_resources& resources, std::error_code&) const override + { + return is_false(val) ? resources.true_value() : resources.false_value(); + } + }; + + class binary_operator + { + std::size_t precedence_level_; + bool is_right_associative_; + protected: + ~binary_operator() = default; // virtual destructor not needed + public: + binary_operator(operator_kind oper) + : precedence_level_(operator_table::precedence_level(oper)), + is_right_associative_(operator_table::is_right_associative(oper)) + { + } + + + std::size_t precedence_level() const + { + return precedence_level_; + } + bool is_right_associative() const + { + return is_right_associative_; + } + + virtual reference evaluate(reference lhs, reference rhs, dynamic_resources&, std::error_code& ec) const = 0; + + virtual std::string to_string(std::size_t indent = 0) const + { + std::string s; + for (std::size_t i = 0; i <= indent; ++i) + { + s.push_back(' '); + } + s.append("to_string not implemented\n"); + return s; + } + }; + + // expression_base + class expression_base + { + std::size_t precedence_level_; + bool is_right_associative_; + bool is_projection_; + public: + expression_base(operator_kind oper, bool is_projection) + : precedence_level_(operator_table::precedence_level(oper)), + is_right_associative_(operator_table::is_right_associative(oper)), + is_projection_(is_projection) + { + } + + std::size_t precedence_level() const + { + return precedence_level_; + } + + bool is_right_associative() const + { + return is_right_associative_; + } + + bool is_projection() const + { + return is_projection_; + } + + virtual ~expression_base() = default; + + virtual reference evaluate(reference val, dynamic_resources& resources, std::error_code& ec) const = 0; + + virtual void add_expression(std::unique_ptr&& expressions) = 0; + + virtual std::string to_string(std::size_t = 0) const + { + return std::string("to_string not implemented"); + } + }; + + // parameter + + enum class parameter_kind{value, expression}; + + class parameter + { + parameter_kind type_; + + union + { + expression_base* expression_; + pointer value_; + }; + + public: + + parameter(const parameter& other) noexcept + : type_(other.type_) + { + switch (type_) + { + case parameter_kind::expression: + expression_ = other.expression_; + break; + case parameter_kind::value: + value_ = other.value_; + break; + default: + break; + } + } + + parameter(reference value) noexcept + : type_(parameter_kind::value), value_(std::addressof(value)) + { + } + + parameter(expression_base* expression) noexcept + : type_(parameter_kind::expression), expression_(expression) + { + } + + parameter& operator=(const parameter& other) + { + if (&other != this) + { + type_ = other.type_; + switch (type_) + { + case parameter_kind::expression: + expression_ = other.expression_; + break; + case parameter_kind::value: + value_ = other.value_; + break; + default: + break; + } + } + return *this; + } + + bool is_value() const + { + return type_ == parameter_kind::value; + } + + bool is_expression() const + { + return type_ == parameter_kind::expression; + } + + const Json& value() const + { + return *value_; + } + + const expression_base& expression() const + { + return *expression_; + } + }; + + // function_base + class function_base + { + jsoncons::optional arg_count_; + public: + function_base(jsoncons::optional arg_count) + : arg_count_(arg_count) + { + } + + jsoncons::optional arity() const + { + return arg_count_; + } + + virtual ~function_base() = default; + + virtual reference evaluate(std::vector& args, dynamic_resources&, std::error_code& ec) const = 0; + + virtual std::string to_string(std::size_t = 0) const + { + return std::string("to_string not implemented"); + } + }; + + class abs_function : public function_base + { + public: + abs_function() + : function_base(1) + { + } + + reference evaluate(std::vector& args, dynamic_resources& resources, std::error_code& ec) const override + { + JSONCONS_ASSERT(args.size() == *this->arity()); + + if (!args[0].is_value()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + + reference arg0 = args[0].value(); + switch (arg0.type()) + { + case json_type::uint64_value: + return arg0; + case json_type::int64_value: + { + return arg0.template as() >= 0 ? arg0 : *resources.create_json(std::abs(arg0.template as())); + } + case json_type::double_value: + { + return arg0.template as() >= 0 ? arg0 : *resources.create_json(std::abs(arg0.template as())); + } + default: + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + } + } + }; + + class avg_function : public function_base + { + public: + avg_function() + : function_base(1) + { + } + + reference evaluate(std::vector& args, dynamic_resources& resources, std::error_code& ec) const override + { + JSONCONS_ASSERT(args.size() == *this->arity()); + + if (!args[0].is_value()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + + reference arg0 = args[0].value(); + if (!arg0.is_array()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + if (arg0.empty()) + { + return resources.null_value(); + } + + double sum = 0; + for (auto& j : arg0.array_range()) + { + if (!j.is_number()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + sum += j.template as(); + } + + return sum == 0 ? resources.null_value() : *resources.create_json(sum/arg0.size()); + } + }; + + class ceil_function : public function_base + { + public: + ceil_function() + : function_base(1) + { + } + + reference evaluate(std::vector& args, dynamic_resources& resources, std::error_code& ec) const override + { + JSONCONS_ASSERT(args.size() == *this->arity()); + + if (!args[0].is_value()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + + reference arg0 = args[0].value(); + switch (arg0.type()) + { + case json_type::uint64_value: + case json_type::int64_value: + { + return *resources.create_json(arg0.template as()); + } + case json_type::double_value: + { + return *resources.create_json(std::ceil(arg0.template as())); + } + default: + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + } + }; + + class contains_function : public function_base + { + public: + contains_function() + : function_base(2) + { + } + + reference evaluate(std::vector& args, dynamic_resources& resources, std::error_code& ec) const override + { + JSONCONS_ASSERT(args.size() == *this->arity()); + + if (!(args[0].is_value() && args[1].is_value())) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + + + reference arg0 = args[0].value(); + reference arg1 = args[1].value(); + + switch (arg0.type()) + { + case json_type::array_value: + for (auto& j : arg0.array_range()) + { + if (j == arg1) + { + return resources.true_value(); + } + } + return resources.false_value(); + case json_type::string_value: + { + if (!arg1.is_string()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + auto sv0 = arg0.template as(); + auto sv1 = arg1.template as(); + return sv0.find(sv1) != string_view_type::npos ? resources.true_value() : resources.false_value(); + } + default: + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + } + } + }; + + class ends_with_function : public function_base + { + public: + ends_with_function() + : function_base(2) + { + } + + reference evaluate(std::vector& args, dynamic_resources& resources, std::error_code& ec) const override + { + JSONCONS_ASSERT(args.size() == *this->arity()); + + if (!(args[0].is_value() && args[1].is_value())) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + + reference arg0 = args[0].value(); + if (!arg0.is_string()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + + reference arg1 = args[1].value(); + if (!arg1.is_string()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + + auto sv0 = arg0.template as(); + auto sv1 = arg1.template as(); + + if (sv1.length() <= sv0.length() && sv1 == sv0.substr(sv0.length() - sv1.length())) + { + return resources.true_value(); + } + else + { + return resources.false_value(); + } + } + }; + + class floor_function : public function_base + { + public: + floor_function() + : function_base(1) + { + } + + reference evaluate(std::vector& args, dynamic_resources& resources, std::error_code& ec) const override + { + JSONCONS_ASSERT(args.size() == *this->arity()); + + if (!args[0].is_value()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + + reference arg0 = args[0].value(); + switch (arg0.type()) + { + case json_type::uint64_value: + case json_type::int64_value: + { + return *resources.create_json(arg0.template as()); + } + case json_type::double_value: + { + return *resources.create_json(std::floor(arg0.template as())); + } + default: + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + } + }; + + class join_function : public function_base + { + public: + join_function() + : function_base(2) + { + } + + reference evaluate(std::vector& args, dynamic_resources& resources, std::error_code& ec) const override + { + JSONCONS_ASSERT(args.size() == *this->arity()); + + reference arg0 = args[0].value(); + reference arg1 = args[1].value(); + + if (!(args[0].is_value() && args[1].is_value())) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + + if (!arg0.is_string()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + if (!arg1.is_array()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + + string_type sep = arg0.template as(); + string_type buf; + for (auto& j : arg1.array_range()) + { + if (!j.is_string()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + if (!buf.empty()) + { + buf.append(sep); + } + auto sv = j.template as(); + buf.append(sv.begin(), sv.end()); + } + return *resources.create_json(buf); + } + }; + + class length_function : public function_base + { + public: + length_function() + : function_base(1) + { + } + + reference evaluate(std::vector& args, dynamic_resources& resources, std::error_code& ec) const override + { + JSONCONS_ASSERT(args.size() == *this->arity()); + + if (!args[0].is_value()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + + reference arg0 = args[0].value(); + + switch (arg0.type()) + { + case json_type::object_value: + case json_type::array_value: + return *resources.create_json(arg0.size()); + case json_type::string_value: + { + auto sv0 = arg0.template as(); + auto length = unicode_traits::count_codepoints(sv0.data(), sv0.size()); + return *resources.create_json(length); + } + default: + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + } + } + }; + + class max_function : public function_base + { + public: + max_function() + : function_base(1) + { + } + + reference evaluate(std::vector& args, dynamic_resources& resources, std::error_code& ec) const override + { + JSONCONS_ASSERT(args.size() == *this->arity()); + + if (!args[0].is_value()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + + reference arg0 = args[0].value(); + if (!arg0.is_array()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + if (arg0.empty()) + { + return resources.null_value(); + } + + bool is_number = arg0.at(0).is_number(); + bool is_string = arg0.at(0).is_string(); + if (!is_number && !is_string) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + + std::size_t index = 0; + for (std::size_t i = 1; i < arg0.size(); ++i) + { + if (!(arg0.at(i).is_number() == is_number && arg0.at(i).is_string() == is_string)) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + if (arg0.at(i) > arg0.at(index)) + { + index = i; + } + } + + return arg0.at(index); + } + }; + + class max_by_function : public function_base + { + public: + max_by_function() + : function_base(2) + { + } + + reference evaluate(std::vector& args, dynamic_resources& resources, std::error_code& ec) const override + { + JSONCONS_ASSERT(args.size() == *this->arity()); + + if (!(args[0].is_value() && args[1].is_expression())) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + + reference arg0 = args[0].value(); + if (!arg0.is_array()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + if (arg0.empty()) + { + return resources.null_value(); + } + + const auto& expr = args[1].expression(); + + std::error_code ec2; + Json key1 = expr.evaluate(arg0.at(0), resources, ec2); + + bool is_number = key1.is_number(); + bool is_string = key1.is_string(); + if (!(is_number || is_string)) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + + std::size_t index = 0; + for (std::size_t i = 1; i < arg0.size(); ++i) + { + reference key2 = expr.evaluate(arg0.at(i), resources, ec2); + if (!(key2.is_number() == is_number && key2.is_string() == is_string)) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + if (key2 > key1) + { + key1 = key2; + index = i; + } + } + + return arg0.at(index); + } + }; + + class map_function : public function_base + { + public: + map_function() + : function_base(2) + { + } + + reference evaluate(std::vector& args, dynamic_resources& resources, std::error_code& ec) const override + { + JSONCONS_ASSERT(args.size() == *this->arity()); + + if (!(args[0].is_expression() && args[1].is_value())) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + const auto& expr = args[0].expression(); + + reference arg0 = args[1].value(); + if (!arg0.is_array()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + + auto result = resources.create_json(json_array_arg); + + for (auto& item : arg0.array_range()) + { + auto& j = expr.evaluate(item, resources, ec); + if (ec) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + result->emplace_back(json_const_pointer_arg, std::addressof(j)); + } + + return *result; + } + + std::string to_string(std::size_t = 0) const override + { + return std::string("map_function\n"); + } + }; + + class min_function : public function_base + { + public: + min_function() + : function_base(1) + { + } + + reference evaluate(std::vector& args, dynamic_resources& resources, std::error_code& ec) const override + { + JSONCONS_ASSERT(args.size() == *this->arity()); + + if (!args[0].is_value()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + + reference arg0 = args[0].value(); + if (!arg0.is_array()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + if (arg0.empty()) + { + return resources.null_value(); + } + + bool is_number = arg0.at(0).is_number(); + bool is_string = arg0.at(0).is_string(); + if (!is_number && !is_string) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + + std::size_t index = 0; + for (std::size_t i = 1; i < arg0.size(); ++i) + { + if (!(arg0.at(i).is_number() == is_number && arg0.at(i).is_string() == is_string)) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + if (arg0.at(i) < arg0.at(index)) + { + index = i; + } + } + + return arg0.at(index); + } + }; + + class min_by_function : public function_base + { + public: + min_by_function() + : function_base(2) + { + } + + reference evaluate(std::vector& args, dynamic_resources& resources, std::error_code& ec) const override + { + JSONCONS_ASSERT(args.size() == *this->arity()); + + if (!(args[0].is_value() && args[1].is_expression())) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + + reference arg0 = args[0].value(); + if (!arg0.is_array()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + if (arg0.empty()) + { + return resources.null_value(); + } + + const auto& expr = args[1].expression(); + + std::error_code ec2; + Json key1 = expr.evaluate(arg0.at(0), resources, ec2); + + bool is_number = key1.is_number(); + bool is_string = key1.is_string(); + if (!(is_number || is_string)) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + + std::size_t index = 0; + for (std::size_t i = 1; i < arg0.size(); ++i) + { + reference key2 = expr.evaluate(arg0.at(i), resources, ec2); + if (!(key2.is_number() == is_number && key2.is_string() == is_string)) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + if (key2 < key1) + { + key1 = key2; + index = i; + } + } + + return arg0.at(index); + } + }; + + class merge_function : public function_base + { + public: + merge_function() + : function_base(jsoncons::optional()) + { + } + + reference evaluate(std::vector& args, dynamic_resources& resources, std::error_code& ec) const override + { + if (args.empty()) + { + ec = jmespath_errc::invalid_arity; + return resources.null_value(); + } + + for (auto& param : args) + { + if (!param.is_value()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + } + + reference arg0 = args[0].value(); + if (!arg0.is_object()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + if (args.size() == 1) + { + return arg0; + } + + auto result = resources.create_json(arg0); + for (std::size_t i = 1; i < args.size(); ++i) + { + reference argi = args[i].value(); + if (!argi.is_object()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + for (auto& item : argi.object_range()) + { + result->insert_or_assign(item.key(),item.value()); + } + } + + return *result; + } + }; + + class type_function : public function_base + { + public: + type_function() + : function_base(1) + { + } + + reference evaluate(std::vector& args, dynamic_resources& resources, std::error_code& ec) const override + { + JSONCONS_ASSERT(args.size() == *this->arity()); + + if (!args[0].is_value()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + + reference arg0 = args[0].value(); + + switch (arg0.type()) + { + case json_type::int64_value: + case json_type::uint64_value: + case json_type::double_value: + return resources.number_type_name(); + case json_type::bool_value: + return resources.boolean_type_name(); + case json_type::string_value: + return resources.string_type_name(); + case json_type::object_value: + return resources.object_type_name(); + case json_type::array_value: + return resources.array_type_name(); + default: + return resources.null_type_name(); + break; + + } + } + }; + + class sort_function : public function_base + { + public: + sort_function() + : function_base(1) + { + } + + reference evaluate(std::vector& args, dynamic_resources& resources, std::error_code& ec) const override + { + JSONCONS_ASSERT(args.size() == *this->arity()); + + if (!args[0].is_value()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + + reference arg0 = args[0].value(); + if (!arg0.is_array()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + if (arg0.size() <= 1) + { + return arg0; + } + + bool is_number = arg0.at(0).is_number(); + bool is_string = arg0.at(0).is_string(); + if (!is_number && !is_string) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + + for (std::size_t i = 1; i < arg0.size(); ++i) + { + if (arg0.at(i).is_number() != is_number || arg0.at(i).is_string() != is_string) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + } + + auto v = resources.create_json(arg0); + std::stable_sort((v->array_range()).begin(), (v->array_range()).end()); + return *v; + } + }; + + class sort_by_function : public function_base + { + public: + sort_by_function() + : function_base(2) + { + } + + reference evaluate(std::vector& args, dynamic_resources& resources, std::error_code& ec) const override + { + JSONCONS_ASSERT(args.size() == *this->arity()); + + if (!(args[0].is_value() && args[1].is_expression())) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + + reference arg0 = args[0].value(); + if (!arg0.is_array()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + if (arg0.size() <= 1) + { + return arg0; + } + + const auto& expr = args[1].expression(); + + auto v = resources.create_json(arg0); + std::stable_sort((v->array_range()).begin(), (v->array_range()).end(), + [&expr,&resources,&ec](reference lhs, reference rhs) -> bool + { + std::error_code ec2; + reference key1 = expr.evaluate(lhs, resources, ec2); + bool is_number = key1.is_number(); + bool is_string = key1.is_string(); + if (!(is_number || is_string)) + { + ec = jmespath_errc::invalid_type; + } + + reference key2 = expr.evaluate(rhs, resources, ec2); + if (!(key2.is_number() == is_number && key2.is_string() == is_string)) + { + ec = jmespath_errc::invalid_type; + } + + return key1 < key2; + }); + return ec ? resources.null_value() : *v; + } + + std::string to_string(std::size_t = 0) const override + { + return std::string("sort_by_function\n"); + } + }; + + class keys_function final : public function_base + { + public: + keys_function() + : function_base(1) + { + } + + reference evaluate(std::vector& args, dynamic_resources& resources, std::error_code& ec) const override + { + JSONCONS_ASSERT(args.size() == *this->arity()); + + if (!args[0].is_value()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + + reference arg0 = args[0].value(); + if (!arg0.is_object()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + + auto result = resources.create_json(json_array_arg); + result->reserve(args.size()); + + for (auto& item : arg0.object_range()) + { + result->emplace_back(item.key()); + } + return *result; + } + }; + + class values_function final : public function_base + { + public: + values_function() + : function_base(1) + { + } + + reference evaluate(std::vector& args, dynamic_resources& resources, std::error_code& ec) const override + { + JSONCONS_ASSERT(args.size() == *this->arity()); + + if (!args[0].is_value()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + + reference arg0 = args[0].value(); + if (!arg0.is_object()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + + auto result = resources.create_json(json_array_arg); + result->reserve(args.size()); + + for (auto& item : arg0.object_range()) + { + result->emplace_back(item.value()); + } + return *result; + } + }; + + class reverse_function final : public function_base + { + public: + reverse_function() + : function_base(1) + { + } + + reference evaluate(std::vector& args, dynamic_resources& resources, std::error_code& ec) const override + { + JSONCONS_ASSERT(args.size() == *this->arity()); + + if (!args[0].is_value()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + + reference arg0 = args[0].value(); + switch (arg0.type()) + { + case json_type::string_value: + { + string_view_type sv = arg0.as_string_view(); + std::basic_string buf; + unicode_traits::convert(sv.data(), sv.size(), buf); + std::reverse(buf.begin(), buf.end()); + string_type s; + unicode_traits::convert(buf.data(), buf.size(), s); + return *resources.create_json(s); + } + case json_type::array_value: + { + auto result = resources.create_json(arg0); + std::reverse(result->array_range().begin(),result->array_range().end()); + return *result; + } + default: + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + } + }; + + class starts_with_function : public function_base + { + public: + starts_with_function() + : function_base(2) + { + } + + reference evaluate(std::vector& args, dynamic_resources& resources, std::error_code& ec) const override + { + JSONCONS_ASSERT(args.size() == *this->arity()); + + if (!(args[0].is_value() && args[1].is_value())) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + + reference arg0 = args[0].value(); + if (!arg0.is_string()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + + reference arg1 = args[1].value(); + if (!arg1.is_string()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + + auto sv0 = arg0.template as(); + auto sv1 = arg1.template as(); + + if (sv1.length() <= sv0.length() && sv1 == sv0.substr(0, sv1.length())) + { + return resources.true_value(); + } + else + { + return resources.false_value(); + } + } + }; + + class sum_function : public function_base + { + public: + sum_function() + : function_base(1) + { + } + + reference evaluate(std::vector& args, dynamic_resources& resources, std::error_code& ec) const override + { + JSONCONS_ASSERT(args.size() == *this->arity()); + + if (!args[0].is_value()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + + reference arg0 = args[0].value(); + if (!arg0.is_array()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + double sum = 0; + for (auto& j : arg0.array_range()) + { + if (!j.is_number()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + sum += j.template as(); + } + + return *resources.create_json(sum); + } + }; + + class to_array_function final : public function_base + { + public: + to_array_function() + : function_base(1) + { + } + + reference evaluate(std::vector& args, dynamic_resources& resources, std::error_code& ec) const override + { + JSONCONS_ASSERT(args.size() == *this->arity()); + + if (!args[0].is_value()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + + reference arg0 = args[0].value(); + if (arg0.is_array()) + { + return arg0; + } + else + { + auto result = resources.create_json(json_array_arg); + result->push_back(arg0); + return *result; + } + } + + std::string to_string(std::size_t = 0) const override + { + return std::string("to_array_function\n"); + } + }; + + class to_number_function final : public function_base + { + public: + to_number_function() + : function_base(1) + { + } + + reference evaluate(std::vector& args, dynamic_resources& resources, std::error_code& ec) const override + { + JSONCONS_ASSERT(args.size() == *this->arity()); + + if (!args[0].is_value()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + + reference arg0 = args[0].value(); + switch (arg0.type()) + { + case json_type::int64_value: + case json_type::uint64_value: + case json_type::double_value: + return arg0; + case json_type::string_value: + { + auto sv = arg0.as_string_view(); + uint64_t uval{ 0 }; + auto result1 = jsoncons::detail::to_integer(sv.data(), sv.length(), uval); + if (result1) + { + return *resources.create_json(uval); + } + int64_t sval{ 0 }; + auto result2 = jsoncons::detail::to_integer(sv.data(), sv.length(), sval); + if (result2) + { + return *resources.create_json(sval); + } + jsoncons::detail::chars_to to_double; + try + { + auto s = arg0.as_string(); + double d = to_double(s.c_str(), s.length()); + return *resources.create_json(d); + } + catch (const std::exception&) + { + return resources.null_value(); + } + } + default: + return resources.null_value(); + } + } + + std::string to_string(std::size_t = 0) const override + { + return std::string("to_number_function\n"); + } + }; + + class to_string_function final : public function_base + { + public: + to_string_function() + : function_base(1) + { + } + + reference evaluate(std::vector& args, dynamic_resources& resources, std::error_code& ec) const override + { + JSONCONS_ASSERT(args.size() == *this->arity()); + + if (!args[0].is_value()) + { + ec = jmespath_errc::invalid_type; + return resources.null_value(); + } + + reference arg0 = args[0].value(); + return *resources.create_json(arg0.template as()); + } + + std::string to_string(std::size_t = 0) const override + { + return std::string("to_string_function\n"); + } + }; + + class not_null_function final : public function_base + { + public: + not_null_function() + : function_base(jsoncons::optional()) + { + } + + reference evaluate(std::vector& args, dynamic_resources& resources, std::error_code&) const override + { + for (auto& param : args) + { + if (param.is_value() && !param.value().is_null()) + { + return param.value(); + } + } + return resources.null_value(); + } + + std::string to_string(std::size_t = 0) const override + { + return std::string("to_string_function\n"); + } + }; + + // token + + class token + { + public: + token_kind type_; + + union + { + std::unique_ptr expression_; + const unary_operator* unary_operator_; + const binary_operator* binary_operator_; + const function_base* function_; + Json value_; + string_type key_; + }; + public: + + token(current_node_arg_t) noexcept + : type_(token_kind::current_node) + { + } + + token(end_function_arg_t) noexcept + : type_(token_kind::end_function) + { + } + + token(separator_arg_t) noexcept + : type_(token_kind::separator) + { + } + + token(lparen_arg_t) noexcept + : type_(token_kind::lparen) + { + } + + token(rparen_arg_t) noexcept + : type_(token_kind::rparen) + { + } + + token(end_of_expression_arg_t) noexcept + : type_(token_kind::end_of_expression) + { + } + + token(begin_multi_select_hash_arg_t) noexcept + : type_(token_kind::begin_multi_select_hash) + { + } + + token(end_multi_select_hash_arg_t) noexcept + : type_(token_kind::end_multi_select_hash) + { + } + + token(begin_multi_select_list_arg_t) noexcept + : type_(token_kind::begin_multi_select_list) + { + } + + token(end_multi_select_list_arg_t) noexcept + : type_(token_kind::end_multi_select_list) + { + } + + token(begin_filter_arg_t) noexcept + : type_(token_kind::begin_filter) + { + } + + token(end_filter_arg_t) noexcept + : type_(token_kind::end_filter) + { + } + + token(pipe_arg_t) noexcept + : type_(token_kind::pipe) + { + } + + token(key_arg_t, const string_type& key) + : type_(token_kind::key) + { + new (&key_) string_type(key); + } + + token(std::unique_ptr&& expression) + : type_(token_kind::expression) + { + new (&expression_) std::unique_ptr(std::move(expression)); + } + + token(const unary_operator* expression) noexcept + : type_(token_kind::unary_operator), + unary_operator_(expression) + { + } + + token(const binary_operator* expression) noexcept + : type_(token_kind::binary_operator), + binary_operator_(expression) + { + } + + token(const function_base* function) noexcept + : type_(token_kind::function), + function_(function) + { + } + + token(argument_arg_t) noexcept + : type_(token_kind::argument) + { + } + + token(begin_expression_type_arg_t) noexcept + : type_(token_kind::begin_expression_type) + { + } + + token(end_expression_type_arg_t) noexcept + : type_(token_kind::end_expression_type) + { + } + + token(literal_arg_t, Json&& value) noexcept + : type_(token_kind::literal), value_(std::move(value)) + { + } + + token(token&& other) noexcept + { + construct(std::forward(other)); + } + + token& operator=(token&& other) + { + if (&other != this) + { + if (type_ == other.type_) + { + switch (type_) + { + case token_kind::expression: + expression_ = std::move(other.expression_); + break; + case token_kind::key: + key_ = std::move(other.key_); + break; + case token_kind::unary_operator: + unary_operator_ = other.unary_operator_; + break; + case token_kind::binary_operator: + binary_operator_ = other.binary_operator_; + break; + case token_kind::function: + function_ = other.function_; + break; + case token_kind::literal: + value_ = std::move(other.value_); + break; + default: + break; + } + } + else + { + destroy(); + construct(std::forward(other)); + } + } + return *this; + } + + ~token() noexcept + { + destroy(); + } + + token_kind type() const + { + return type_; + } + + bool is_lparen() const + { + return type_ == token_kind::lparen; + } + + bool is_lbrace() const + { + return type_ == token_kind::begin_multi_select_hash; + } + + bool is_key() const + { + return type_ == token_kind::key; + } + + bool is_rparen() const + { + return type_ == token_kind::rparen; + } + + bool is_current_node() const + { + return type_ == token_kind::current_node; + } + + bool is_projection() const + { + return type_ == token_kind::expression && expression_->is_projection(); + } + + bool is_expression() const + { + return type_ == token_kind::expression; + } + + bool is_operator() const + { + return type_ == token_kind::unary_operator || + type_ == token_kind::binary_operator; + } + + std::size_t precedence_level() const + { + switch(type_) + { + case token_kind::unary_operator: + return unary_operator_->precedence_level(); + case token_kind::binary_operator: + return binary_operator_->precedence_level(); + case token_kind::expression: + return expression_->precedence_level(); + default: + return 0; + } + } + + jsoncons::optional arity() const + { + return type_ == token_kind::function ? function_->arity() : jsoncons::optional(); + } + + bool is_right_associative() const + { + switch(type_) + { + case token_kind::unary_operator: + return unary_operator_->is_right_associative(); + case token_kind::binary_operator: + return binary_operator_->is_right_associative(); + case token_kind::expression: + return expression_->is_right_associative(); + default: + return false; + } + } + + void construct(token&& other) + { + type_ = other.type_; + switch (type_) + { + case token_kind::expression: + new (&expression_) std::unique_ptr(std::move(other.expression_)); + break; + case token_kind::key: + new (&key_) string_type(std::move(other.key_)); + break; + case token_kind::unary_operator: + unary_operator_ = other.unary_operator_; + break; + case token_kind::binary_operator: + binary_operator_ = other.binary_operator_; + break; + case token_kind::function: + function_ = other.function_; + break; + case token_kind::literal: + new (&value_) Json(std::move(other.value_)); + break; + default: + break; + } + } + + void destroy() noexcept + { + switch(type_) + { + case token_kind::expression: + expression_.~unique_ptr(); + break; + case token_kind::key: + key_.~basic_string(); + break; + case token_kind::literal: + value_.~Json(); + break; + default: + break; + } + } + + std::string to_string(std::size_t indent = 0) const + { + switch(type_) + { + case token_kind::expression: + return expression_->to_string(indent); + break; + case token_kind::unary_operator: + return std::string("unary_operator"); + break; + case token_kind::binary_operator: + return binary_operator_->to_string(indent); + break; + case token_kind::current_node: + return std::string("current_node"); + break; + case token_kind::end_function: + return std::string("end_function"); + break; + case token_kind::separator: + return std::string("separator"); + break; + case token_kind::literal: + return std::string("literal"); + break; + case token_kind::key: + return std::string("key") + key_; + break; + case token_kind::begin_multi_select_hash: + return std::string("begin_multi_select_hash"); + break; + case token_kind::begin_multi_select_list: + return std::string("begin_multi_select_list"); + break; + case token_kind::begin_filter: + return std::string("begin_filter"); + break; + case token_kind::pipe: + return std::string("pipe"); + break; + case token_kind::lparen: + return std::string("lparen"); + break; + case token_kind::function: + return function_->to_string(); + case token_kind::argument: + return std::string("argument"); + break; + case token_kind::begin_expression_type: + return std::string("begin_expression_type"); + break; + case token_kind::end_expression_type: + return std::string("end_expression_type"); + break; + default: + return std::string("default"); + break; + } + } + }; + + static pointer evaluate_tokens(reference doc, const std::vector& output_stack, dynamic_resources& resources, std::error_code& ec) + { + pointer root_ptr = std::addressof(doc); + std::vector stack; + std::vector arg_stack; + for (std::size_t i = 0; i < output_stack.size(); ++i) + { + auto& t = output_stack[i]; + switch (t.type()) + { + case token_kind::literal: + { + stack.emplace_back(t.value_); + break; + } + case token_kind::begin_expression_type: + { + JSONCONS_ASSERT(i+1 < output_stack.size()); + ++i; + JSONCONS_ASSERT(output_stack[i].is_expression()); + JSONCONS_ASSERT(!stack.empty()); + stack.pop_back(); + stack.emplace_back(output_stack[i].expression_.get()); + break; + } + case token_kind::pipe: + { + JSONCONS_ASSERT(!stack.empty()); + root_ptr = std::addressof(stack.back().value()); + break; + } + case token_kind::current_node: + stack.emplace_back(*root_ptr); + break; + case token_kind::expression: + { + JSONCONS_ASSERT(!stack.empty()); + pointer ptr = std::addressof(stack.back().value()); + stack.pop_back(); + auto& ref = t.expression_->evaluate(*ptr, resources, ec); + stack.emplace_back(ref); + break; + } + case token_kind::unary_operator: + { + JSONCONS_ASSERT(stack.size() >= 1); + pointer ptr = std::addressof(stack.back().value()); + stack.pop_back(); + reference r = t.unary_operator_->evaluate(*ptr, resources, ec); + stack.emplace_back(r); + break; + } + case token_kind::binary_operator: + { + JSONCONS_ASSERT(stack.size() >= 2); + pointer rhs = std::addressof(stack.back().value()); + stack.pop_back(); + pointer lhs = std::addressof(stack.back().value()); + stack.pop_back(); + reference r = t.binary_operator_->evaluate(*lhs,*rhs, resources, ec); + stack.emplace_back(r); + break; + } + case token_kind::argument: + { + JSONCONS_ASSERT(!stack.empty()); + arg_stack.push_back(std::move(stack.back())); + stack.pop_back(); + break; + } + case token_kind::function: + { + if (t.function_->arity() && *(t.function_->arity()) != arg_stack.size()) + { + ec = jmespath_errc::invalid_arity; + return std::addressof(resources.null_value()); + } + + reference r = t.function_->evaluate(arg_stack, resources, ec); + if (ec) + { + return std::addressof(resources.null_value()); + } + arg_stack.clear(); + stack.emplace_back(r); + break; + } + default: + break; + } + } + JSONCONS_ASSERT(stack.size() == 1); + return std::addressof(stack.back().value()); + } + + // Implementations + + class or_operator final : public binary_operator + { + public: + or_operator() + : binary_operator(operator_kind::or_op) + { + } + + reference evaluate(reference lhs, reference rhs, dynamic_resources& resources, std::error_code&) const override + { + if (lhs.is_null() && rhs.is_null()) + { + return resources.null_value(); + } + if (!is_false(lhs)) + { + return lhs; + } + else + { + return rhs; + } + } + + std::string to_string(std::size_t indent = 0) const override + { + std::string s; + for (std::size_t i = 0; i <= indent; ++i) + { + s.push_back(' '); + } + s.append("or_operator\n"); + return s; + } + }; + + class and_operator final : public binary_operator + { + public: + and_operator() + : binary_operator(operator_kind::and_op) + { + } + + reference evaluate(reference lhs, reference rhs, dynamic_resources&, std::error_code&) const override + { + if (is_true(lhs)) + { + return rhs; + } + else + { + return lhs; + } + } + + std::string to_string(std::size_t indent = 0) const override + { + std::string s; + for (std::size_t i = 0; i <= indent; ++i) + { + s.push_back(' '); + } + s.append("and_operator\n"); + return s; + } + }; + + class eq_operator final : public binary_operator + { + public: + eq_operator() + : binary_operator(operator_kind::eq_op) + { + } + + reference evaluate(reference lhs, reference rhs, dynamic_resources& resources, std::error_code&) const override + { + return lhs == rhs ? resources.true_value() : resources.false_value(); + } + + std::string to_string(std::size_t indent = 0) const override + { + std::string s; + for (std::size_t i = 0; i <= indent; ++i) + { + s.push_back(' '); + } + s.append("eq_operator\n"); + return s; + } + }; + + class ne_operator final : public binary_operator + { + public: + ne_operator() + : binary_operator(operator_kind::ne_op) + { + } + + reference evaluate(reference lhs, reference rhs, dynamic_resources& resources, std::error_code&) const override + { + return lhs != rhs ? resources.true_value() : resources.false_value(); + } + + std::string to_string(std::size_t indent = 0) const override + { + std::string s; + for (std::size_t i = 0; i <= indent; ++i) + { + s.push_back(' '); + } + s.append("ne_operator\n"); + return s; + } + }; + + class lt_operator final : public binary_operator + { + public: + lt_operator() + : binary_operator(operator_kind::lt_op) + { + } + + reference evaluate(reference lhs, reference rhs, dynamic_resources& resources, std::error_code&) const override + { + if (!(lhs.is_number() && rhs.is_number())) + { + return resources.null_value(); + } + return lhs < rhs ? resources.true_value() : resources.false_value(); + } + + std::string to_string(std::size_t indent = 0) const override + { + std::string s; + for (std::size_t i = 0; i <= indent; ++i) + { + s.push_back(' '); + } + s.append("lt_operator\n"); + return s; + } + }; + + class lte_operator final : public binary_operator + { + public: + lte_operator() + : binary_operator(operator_kind::lte_op) + { + } + + reference evaluate(reference lhs, reference rhs, dynamic_resources& resources, std::error_code&) const override + { + if (!(lhs.is_number() && rhs.is_number())) + { + return resources.null_value(); + } + return lhs <= rhs ? resources.true_value() : resources.false_value(); + } + + std::string to_string(std::size_t indent = 0) const override + { + std::string s; + for (std::size_t i = 0; i <= indent; ++i) + { + s.push_back(' '); + } + s.append("lte_operator\n"); + return s; + } + }; + + class gt_operator final : public binary_operator + { + public: + gt_operator() + : binary_operator(operator_kind::gt_op) + { + } + + reference evaluate(reference lhs, reference rhs, dynamic_resources& resources, std::error_code&) const override + { + if (!(lhs.is_number() && rhs.is_number())) + { + return resources.null_value(); + } + return lhs > rhs ? resources.true_value() : resources.false_value(); + } + + std::string to_string(std::size_t indent = 0) const override + { + std::string s; + for (std::size_t i = 0; i <= indent; ++i) + { + s.push_back(' '); + } + s.append("gt_operator\n"); + return s; + } + }; + + class gte_operator final : public binary_operator + { + public: + gte_operator() + : binary_operator(operator_kind::gte_op) + { + } + + reference evaluate(reference lhs, reference rhs, dynamic_resources& resources, std::error_code&) const override + { + if (!(lhs.is_number() && rhs.is_number())) + { + return resources.null_value(); + } + return lhs >= rhs ? resources.true_value() : resources.false_value(); + } + + std::string to_string(std::size_t indent = 0) const override + { + std::string s; + for (std::size_t i = 0; i <= indent; ++i) + { + s.push_back(' '); + } + s.append("gte_operator\n"); + return s; + } + }; + + // basic_expression + class basic_expression : public expression_base + { + public: + basic_expression() + : expression_base(operator_kind::default_op, false) + { + } + + void add_expression(std::unique_ptr&&) override + { + } + }; + + class identifier_selector final : public basic_expression + { + private: + string_type identifier_; + public: + identifier_selector(const string_view_type& name) + : identifier_(name) + { + } + + reference evaluate(reference val, dynamic_resources& resources, std::error_code&) const override + { + //std::cout << "(identifier_selector " << identifier_ << " ) " << pretty_print(val) << "\n"; + if (val.is_object() && val.contains(identifier_)) + { + return val.at(identifier_); + } + else + { + return resources.null_value(); + } + } + + std::string to_string(std::size_t indent = 0) const override + { + std::string s; + for (std::size_t i = 0; i <= indent; ++i) + { + s.push_back(' '); + } + s.append("identifier_selector "); + s.append(identifier_); + return s; + } + }; + + class current_node final : public basic_expression + { + public: + current_node() + { + } + + reference evaluate(reference val, dynamic_resources&, std::error_code&) const override + { + return val; + } + + std::string to_string(std::size_t indent = 0) const override + { + std::string s; + for (std::size_t i = 0; i <= indent; ++i) + { + s.push_back(' '); + } + s.append("current_node "); + return s; + } + }; + + class index_selector final : public basic_expression + { + int64_t index_; + public: + index_selector(int64_t index) + : index_(index) + { + } + + reference evaluate(reference val, dynamic_resources& resources, std::error_code&) const override + { + if (!val.is_array()) + { + return resources.null_value(); + } + int64_t slen = static_cast(val.size()); + if (index_ >= 0 && index_ < slen) + { + std::size_t index = static_cast(index_); + return val.at(index); + } + else if ((slen + index_) >= 0 && (slen+index_) < slen) + { + std::size_t index = static_cast(slen + index_); + return val.at(index); + } + else + { + return resources.null_value(); + } + } + + std::string to_string(std::size_t indent = 0) const override + { + std::string s; + for (std::size_t i = 0; i <= indent; ++i) + { + s.push_back(' '); + } + s.append("index_selector "); + s.append(std::to_string(index_)); + return s; + } + }; + + // projection_base + class projection_base : public expression_base + { + protected: + std::vector> expressions_; + public: + projection_base(operator_kind oper) + : expression_base(oper, true) + { + } + + void add_expression(std::unique_ptr&& expr) override + { + if (!expressions_.empty() && expressions_.back()->is_projection() && + (expr->precedence_level() < expressions_.back()->precedence_level() || + (expr->precedence_level() == expressions_.back()->precedence_level() && expr->is_right_associative()))) + { + expressions_.back()->add_expression(std::move(expr)); + } + else + { + expressions_.emplace_back(std::move(expr)); + } + } + + reference apply_expressions(reference val, dynamic_resources& resources, std::error_code& ec) const + { + pointer ptr = std::addressof(val); + for (auto& expression : expressions_) + { + ptr = std::addressof(expression->evaluate(*ptr, resources, ec)); + } + return *ptr; + } + }; + + class object_projection final : public projection_base + { + public: + object_projection() + : projection_base(operator_kind::projection_op) + { + } + + reference evaluate(reference val, dynamic_resources& resources, std::error_code& ec) const override + { + if (!val.is_object()) + { + return resources.null_value(); + } + + auto result = resources.create_json(json_array_arg); + for (auto& item : val.object_range()) + { + if (!item.value().is_null()) + { + reference j = this->apply_expressions(item.value(), resources, ec); + if (!j.is_null()) + { + result->emplace_back(json_const_pointer_arg, std::addressof(j)); + } + } + } + return *result; + } + + std::string to_string(std::size_t indent = 0) const override + { + std::string s; + for (std::size_t i = 0; i <= indent; ++i) + { + s.push_back(' '); + } + s.append("object_projection\n"); + for (auto& expr : this->expressions_) + { + std::string sss = expr->to_string(indent+2); + s.insert(s.end(), sss.begin(), sss.end()); + s.push_back('\n'); + } + return s; + } + }; + + class list_projection final : public projection_base + { + public: + list_projection() + : projection_base(operator_kind::projection_op) + { + } + + reference evaluate(reference val, dynamic_resources& resources, std::error_code& ec) const override + { + if (!val.is_array()) + { + return resources.null_value(); + } + + auto result = resources.create_json(json_array_arg); + for (reference item : val.array_range()) + { + if (!item.is_null()) + { + reference j = this->apply_expressions(item, resources, ec); + if (!j.is_null()) + { + result->emplace_back(json_const_pointer_arg, std::addressof(j)); + } + } + } + return *result; + } + + std::string to_string(std::size_t indent = 0) const override + { + std::string s; + for (std::size_t i = 0; i <= indent; ++i) + { + s.push_back(' '); + } + s.append("list_projection\n"); + for (auto& expr : this->expressions_) + { + std::string sss = expr->to_string(indent+2); + s.insert(s.end(), sss.begin(), sss.end()); + s.push_back('\n'); + } + return s; + } + }; + + class slice_projection final : public projection_base + { + slice slice_; + public: + slice_projection(const slice& s) + : projection_base(operator_kind::projection_op), slice_(s) + { + } + + reference evaluate(reference val, dynamic_resources& resources, std::error_code& ec) const override + { + if (!val.is_array()) + { + return resources.null_value(); + } + + auto start = slice_.get_start(val.size()); + auto end = slice_.get_stop(val.size()); + auto step = slice_.step(); + + if (step == 0) + { + ec = jmespath_errc::step_cannot_be_zero; + return resources.null_value(); + } + + auto result = resources.create_json(json_array_arg); + if (step > 0) + { + if (start < 0) + { + start = 0; + } + if (end > static_cast(val.size())) + { + end = val.size(); + } + for (int64_t i = start; i < end; i += step) + { + reference j = this->apply_expressions(val.at(static_cast(i)), resources, ec); + if (!j.is_null()) + { + result->emplace_back(json_const_pointer_arg, std::addressof(j)); + } + } + } + else + { + if (start >= static_cast(val.size())) + { + start = static_cast(val.size()) - 1; + } + if (end < -1) + { + end = -1; + } + for (int64_t i = start; i > end; i += step) + { + reference j = this->apply_expressions(val.at(static_cast(i)), resources, ec); + if (!j.is_null()) + { + result->emplace_back(json_const_pointer_arg, std::addressof(j)); + } + } + } + + return *result; + } + + std::string to_string(std::size_t indent = 0) const override + { + std::string s; + for (std::size_t i = 0; i <= indent; ++i) + { + s.push_back(' '); + } + s.append("slice_projection\n"); + for (auto& expr : this->expressions_) + { + std::string sss = expr->to_string(indent+2); + s.insert(s.end(), sss.begin(), sss.end()); + s.push_back('\n'); + } + return s; + } + }; + + class filter_expression final : public projection_base + { + std::vector token_list_; + public: + filter_expression(std::vector&& token_list) + : projection_base(operator_kind::projection_op), token_list_(std::move(token_list)) + { + } + + reference evaluate(reference val, dynamic_resources& resources, std::error_code& ec) const override + { + if (!val.is_array()) + { + return resources.null_value(); + } + auto result = resources.create_json(json_array_arg); + + for (auto& item : val.array_range()) + { + Json j(json_const_pointer_arg, evaluate_tokens(item, token_list_, resources, ec)); + if (is_true(j)) + { + reference jj = this->apply_expressions(item, resources, ec); + if (!jj.is_null()) + { + result->emplace_back(json_const_pointer_arg, std::addressof(jj)); + } + } + } + return *result; + } + + std::string to_string(std::size_t indent = 0) const override + { + std::string s; + for (std::size_t i = 0; i <= indent; ++i) + { + s.push_back(' '); + } + s.append("filter_expression\n"); + for (auto& item : token_list_) + { + std::string sss = item.to_string(indent+2); + s.insert(s.end(), sss.begin(), sss.end()); + s.push_back('\n'); + } + return s; + } + }; + + class flatten_projection final : public projection_base + { + public: + flatten_projection() + : projection_base(operator_kind::flatten_projection_op) + { + } + + reference evaluate(reference val, dynamic_resources& resources, std::error_code& ec) const override + { + if (!val.is_array()) + { + return resources.null_value(); + } + + auto result = resources.create_json(json_array_arg); + for (reference current_elem : val.array_range()) + { + if (current_elem.is_array()) + { + for (reference elem : current_elem.array_range()) + { + if (!elem.is_null()) + { + reference j = this->apply_expressions(elem, resources, ec); + if (!j.is_null()) + { + result->emplace_back(json_const_pointer_arg, std::addressof(j)); + } + } + } + } + else + { + if (!current_elem.is_null()) + { + reference j = this->apply_expressions(current_elem, resources, ec); + if (!j.is_null()) + { + result->emplace_back(json_const_pointer_arg, std::addressof(j)); + } + } + } + } + return *result; + } + + std::string to_string(std::size_t indent = 0) const override + { + std::string s; + for (std::size_t i = 0; i <= indent; ++i) + { + s.push_back(' '); + } + s.append("flatten_projection\n"); + for (auto& expr : this->expressions_) + { + std::string sss = expr->to_string(indent+2); + s.insert(s.end(), sss.begin(), sss.end()); + s.push_back('\n'); + } + return s; + } + }; + + class multi_select_list final : public basic_expression + { + std::vector> token_lists_; + public: + multi_select_list(std::vector>&& token_lists) + : token_lists_(std::move(token_lists)) + { + } + + reference evaluate(reference val, dynamic_resources& resources, std::error_code& ec) const override + { + if (val.is_null()) + { + return val; + } + auto result = resources.create_json(json_array_arg); + result->reserve(token_lists_.size()); + + for (auto& list : token_lists_) + { + result->emplace_back(json_const_pointer_arg, evaluate_tokens(val, list, resources, ec)); + } + return *result; + } + + std::string to_string(std::size_t indent = 0) const override + { + std::string s; + for (std::size_t i = 0; i <= indent; ++i) + { + s.push_back(' '); + } + s.append("multi_select_list\n"); + for (auto& list : token_lists_) + { + for (auto& item : list) + { + std::string sss = item.to_string(indent+2); + s.insert(s.end(), sss.begin(), sss.end()); + s.push_back('\n'); + } + s.append("---\n"); + } + return s; + } + }; + + struct key_tokens + { + string_type key; + std::vector tokens; + + key_tokens(string_type&& key, std::vector&& tokens) noexcept + : key(std::move(key)), tokens(std::move(tokens)) + { + } + }; + + class multi_select_hash final : public basic_expression + { + public: + std::vector key_toks_; + + multi_select_hash(std::vector&& key_toks) + : key_toks_(std::move(key_toks)) + { + } + + reference evaluate(reference val, dynamic_resources& resources, std::error_code& ec) const override + { + if (val.is_null()) + { + return val; + } + auto resultp = resources.create_json(json_object_arg); + resultp->reserve(key_toks_.size()); + for (auto& item : key_toks_) + { + resultp->try_emplace(item.key, json_const_pointer_arg, evaluate_tokens(val, item.tokens, resources, ec)); + } + + return *resultp; + } + + std::string to_string(std::size_t indent = 0) const override + { + std::string s; + for (std::size_t i = 0; i <= indent; ++i) + { + s.push_back(' '); + } + s.append("multi_select_list\n"); + return s; + } + }; + + class function_expression final : public basic_expression + { + public: + std::vector toks_; + + function_expression(std::vector&& toks) + : toks_(std::move(toks)) + { + } + + reference evaluate(reference val, dynamic_resources& resources, std::error_code& ec) const override + { + return *evaluate_tokens(val, toks_, resources, ec); + } + + std::string to_string(std::size_t indent = 0) const override + { + std::string s; + for (std::size_t i = 0; i <= indent; ++i) + { + s.push_back(' '); + } + s.append("function_expression\n"); + for (auto& tok : toks_) + { + for (std::size_t i = 0; i <= indent+2; ++i) + { + s.push_back(' '); + } + std::string sss = tok.to_string(indent+2); + s.insert(s.end(), sss.begin(), sss.end()); + s.push_back('\n'); + } + return s; + } + }; + + class static_resources + { + std::vector> temp_storage_; + + public: + + static_resources() = default; + static_resources(const static_resources& expr) = delete; + static_resources& operator=(const static_resources& expr) = delete; + static_resources(static_resources&& expr) = default; + static_resources& operator=(static_resources&& expr) = default; + + const function_base* get_function(const string_type& name, std::error_code& ec) const + { + static abs_function abs_func; + static avg_function avg_func; + static ceil_function ceil_func; + static contains_function contains_func; + static ends_with_function ends_with_func; + static floor_function floor_func; + static join_function join_func; + static length_function length_func; + static max_function max_func; + static max_by_function max_by_func; + static map_function map_func; + static merge_function merge_func; + static min_function min_func; + static min_by_function min_by_func; + static type_function type_func; + static sort_function sort_func; + static sort_by_function sort_by_func; + static keys_function keys_func; + static values_function values_func; + static reverse_function reverse_func; + static starts_with_function starts_with_func; + static const sum_function sum_func; + static to_array_function to_array_func; + static to_number_function to_number_func; + static to_string_function to_string_func; + static not_null_function not_null_func; + + using function_dictionary = std::unordered_map; + static const function_dictionary functions_ = + { + {string_type{'a','b','s'}, &abs_func}, + {string_type{'a','v','g'}, &avg_func}, + {string_type{'c','e','i', 'l'}, &ceil_func}, + {string_type{'c','o','n', 't', 'a', 'i', 'n', 's'}, &contains_func}, + {string_type{'e','n','d', 's', '_', 'w', 'i', 't', 'h'}, &ends_with_func}, + {string_type{'f','l','o', 'o', 'r'}, &floor_func}, + {string_type{'j','o','i', 'n'}, &join_func}, + {string_type{'l','e','n', 'g', 't', 'h'}, &length_func}, + {string_type{'m','a','x'}, &max_func}, + {string_type{'m','a','x','_','b','y'}, &max_by_func}, + {string_type{'m','a','p'}, &map_func}, + {string_type{'m','i','n'}, &min_func}, + {string_type{'m','i','n','_','b','y'}, &min_by_func}, + {string_type{'m','e','r', 'g', 'e'}, &merge_func}, + {string_type{'t','y','p', 'e'}, &type_func}, + {string_type{'s','o','r', 't'}, &sort_func}, + {string_type{'s','o','r', 't','_','b','y'}, &sort_by_func}, + {string_type{'k','e','y', 's'}, &keys_func}, + {string_type{'v','a','l', 'u','e','s'}, &values_func}, + {string_type{'r','e','v', 'e', 'r', 's','e'}, &reverse_func}, + {string_type{'s','t','a', 'r','t','s','_','w','i','t','h'}, &starts_with_func}, + {string_type{'s','u','m'}, &sum_func}, + {string_type{'t','o','_','a','r','r','a','y',}, &to_array_func}, + {string_type{'t','o','_', 'n', 'u', 'm','b','e','r'}, &to_number_func}, + {string_type{'t','o','_', 's', 't', 'r','i','n','g'}, &to_string_func}, + {string_type{'n','o','t', '_', 'n', 'u','l','l'}, ¬_null_func} + }; + auto it = functions_.find(name); + if (it == functions_.end()) + { + ec = jmespath_errc::unknown_function; + return nullptr; + } + return it->second; + } + + const unary_operator* get_not_operator() const + { + static const not_expression not_oper; + + return ¬_oper; + } + + const binary_operator* get_or_operator() const + { + static const or_operator or_oper; + + return &or_oper; + } + + const binary_operator* get_and_operator() const + { + static const and_operator and_oper; + + return &and_oper; + } + + const binary_operator* get_eq_operator() const + { + static const eq_operator eq_oper; + return &eq_oper; + } + + const binary_operator* get_ne_operator() const + { + static const ne_operator ne_oper; + return &ne_oper; + } + + const binary_operator* get_lt_operator() const + { + static const lt_operator lt_oper; + return <_oper; + } + + const binary_operator* get_lte_operator() const + { + static const lte_operator lte_oper; + return <e_oper; + } + + const binary_operator* get_gt_operator() const + { + static const gt_operator gt_oper; + return >_oper; + } + + const binary_operator* get_gte_operator() const + { + static const gte_operator gte_oper; + return >e_oper; + } + }; + + class jmespath_expression + { + static_resources resources_; + std::vector output_stack_; + public: + jmespath_expression() + { + } + + jmespath_expression(const jmespath_expression& expr) = delete; + jmespath_expression& operator=(const jmespath_expression& expr) = delete; + + jmespath_expression(jmespath_expression&& expr) + : resources_(std::move(expr.resources_)), + output_stack_(std::move(expr.output_stack_)) + { + } + + jmespath_expression(static_resources&& resources, + std::vector&& output_stack) + : resources_(std::move(resources)), output_stack_(std::move(output_stack)) + { + } + + Json evaluate(reference doc) + { + if (output_stack_.empty()) + { + return Json::null(); + } + std::error_code ec; + Json result = evaluate(doc, ec); + if (ec) + { + JSONCONS_THROW(jmespath_error(ec)); + } + return result; + } + + Json evaluate(reference doc, std::error_code& ec) + { + if (output_stack_.empty()) + { + return Json::null(); + } + dynamic_resources dynamic_storage; + return deep_copy(*evaluate_tokens(doc, output_stack_, dynamic_storage, ec)); + } + + static jmespath_expression compile(const string_view_type& expr) + { + jsoncons::jmespath::detail::jmespath_evaluator evaluator; + std::error_code ec; + jmespath_expression result = evaluator.compile(expr.data(), expr.size(), ec); + if (ec) + { + JSONCONS_THROW(jmespath_error(ec, evaluator.line(), evaluator.column())); + } + return result; + } + + static jmespath_expression compile(const string_view_type& expr, + std::error_code& ec) + { + jsoncons::jmespath::detail::jmespath_evaluator evaluator; + return evaluator.compile(expr.data(), expr.size(), ec); + } + }; + private: + std::size_t line_; + std::size_t column_; + const char_type* begin_input_; + const char_type* end_input_; + const char_type* p_; + + static_resources resources_; + std::vector state_stack_; + + std::vector output_stack_; + std::vector operator_stack_; + + public: + jmespath_evaluator() + : line_(1), column_(1), + begin_input_(nullptr), end_input_(nullptr), + p_(nullptr) + { + } + + std::size_t line() const + { + return line_; + } + + std::size_t column() const + { + return column_; + } + + jmespath_expression compile(const char_type* path, + std::size_t length, + std::error_code& ec) + { + push_token(current_node_arg, ec); + if (ec) {return jmespath_expression();} + state_stack_.emplace_back(path_state::start); + + string_type buffer; + uint32_t cp = 0; + uint32_t cp2 = 0; + + begin_input_ = path; + end_input_ = path + length; + p_ = begin_input_; + + slice slic{}; + + while (p_ < end_input_) + { + switch (state_stack_.back()) + { + case path_state::start: + { + state_stack_.back() = path_state::rhs_expression; + state_stack_.emplace_back(path_state::lhs_expression); + break; + } + case path_state::rhs_expression: + switch(*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(ec); + break; + case '.': + ++p_; + ++column_; + state_stack_.emplace_back(path_state::sub_expression); + break; + case '|': + ++p_; + ++column_; + state_stack_.emplace_back(path_state::lhs_expression); + state_stack_.emplace_back(path_state::expect_pipe_or_or); + break; + case '&': + ++p_; + ++column_; + state_stack_.emplace_back(path_state::lhs_expression); + state_stack_.emplace_back(path_state::expect_and); + break; + case '<': + case '>': + case '=': + { + state_stack_.emplace_back(path_state::comparator_expression); + break; + } + case '!': + { + ++p_; + ++column_; + state_stack_.emplace_back(path_state::lhs_expression); + state_stack_.emplace_back(path_state::cmp_ne); + break; + } + case ')': + { + state_stack_.pop_back(); + break; + } + case '[': + state_stack_.emplace_back(path_state::bracket_specifier); + ++p_; + ++column_; + break; + default: + if (state_stack_.size() > 1) + { + state_stack_.pop_back(); + } + else + { + ec = jmespath_errc::syntax_error; + return jmespath_expression(); + } + break; + } + break; + case path_state::comparator_expression: + switch(*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(ec); + break; + case '<': + ++p_; + ++column_; + state_stack_.back() = path_state::lhs_expression; + state_stack_.emplace_back(path_state::cmp_lt_or_lte); + break; + case '>': + ++p_; + ++column_; + state_stack_.back() = path_state::lhs_expression; + state_stack_.emplace_back(path_state::cmp_gt_or_gte); + break; + case '=': + { + ++p_; + ++column_; + state_stack_.back() = path_state::lhs_expression; + state_stack_.emplace_back(path_state::cmp_eq); + break; + } + default: + if (state_stack_.size() > 1) + { + state_stack_.pop_back(); + } + else + { + ec = jmespath_errc::syntax_error; + return jmespath_expression(); + } + break; + } + break; + case path_state::lhs_expression: + { + switch (*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(ec); + break; + case '\"': + state_stack_.back() = path_state::val_expr; + state_stack_.emplace_back(path_state::quoted_string); + ++p_; + ++column_; + break; + case '\'': + state_stack_.back() = path_state::raw_string; + ++p_; + ++column_; + break; + case '`': + state_stack_.back() = path_state::literal; + ++p_; + ++column_; + break; + case '{': + push_token(begin_multi_select_hash_arg, ec); + if (ec) {return jmespath_expression();} + state_stack_.back() = path_state::multi_select_hash; + ++p_; + ++column_; + break; + case '*': // wildcard + push_token(token(jsoncons::make_unique()), ec); + if (ec) {return jmespath_expression();} + state_stack_.pop_back(); + ++p_; + ++column_; + break; + case '(': + { + ++p_; + ++column_; + push_token(lparen_arg, ec); + if (ec) {return jmespath_expression();} + state_stack_.back() = path_state::expect_rparen; + state_stack_.emplace_back(path_state::rhs_expression); + state_stack_.emplace_back(path_state::lhs_expression); + break; + } + case '!': + { + ++p_; + ++column_; + push_token(token(resources_.get_not_operator()), ec); + if (ec) {return jmespath_expression();} + break; + } + case '@': + ++p_; + ++column_; + push_token(token(jsoncons::make_unique()), ec); + if (ec) {return jmespath_expression();} + state_stack_.pop_back(); + break; + case '[': + state_stack_.back() = path_state::bracket_specifier_or_multi_select_list; + ++p_; + ++column_; + break; + default: + if ((*p_ >= 'A' && *p_ <= 'Z') || (*p_ >= 'a' && *p_ <= 'z') || (*p_ == '_')) + { + state_stack_.back() = path_state::identifier_or_function_expr; + state_stack_.emplace_back(path_state::unquoted_string); + buffer.push_back(*p_); + ++p_; + ++column_; + } + else + { + ec = jmespath_errc::expected_identifier; + return jmespath_expression(); + } + break; + }; + break; + } + case path_state::sub_expression: + { + switch (*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(ec); + break; + case '\"': + state_stack_.back() = path_state::val_expr; + state_stack_.emplace_back(path_state::quoted_string); + ++p_; + ++column_; + break; + case '{': + push_token(begin_multi_select_hash_arg, ec); + if (ec) {return jmespath_expression();} + state_stack_.back() = path_state::multi_select_hash; + ++p_; + ++column_; + break; + case '*': + push_token(token(jsoncons::make_unique()), ec); + if (ec) {return jmespath_expression();} + state_stack_.pop_back(); + ++p_; + ++column_; + break; + case '[': + state_stack_.back() = path_state::expect_multi_select_list; + ++p_; + ++column_; + break; + default: + if ((*p_ >= 'A' && *p_ <= 'Z') || (*p_ >= 'a' && *p_ <= 'z') || (*p_ == '_')) + { + state_stack_.back() = path_state::identifier_or_function_expr; + state_stack_.emplace_back(path_state::unquoted_string); + buffer.push_back(*p_); + ++p_; + ++column_; + } + else + { + ec = jmespath_errc::expected_identifier; + return jmespath_expression(); + } + break; + }; + break; + } + case path_state::key_expr: + push_token(token(key_arg, buffer), ec); + if (ec) {return jmespath_expression();} + buffer.clear(); + state_stack_.pop_back(); + break; + case path_state::val_expr: + push_token(token(jsoncons::make_unique(buffer)), ec); + if (ec) {return jmespath_expression();} + buffer.clear(); + state_stack_.pop_back(); + break; + case path_state::expression_or_expression_type: + switch (*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(ec); + break; + case '&': + push_token(token(begin_expression_type_arg), ec); + if (ec) {return jmespath_expression();} + state_stack_.back() = path_state::expression_type; + state_stack_.emplace_back(path_state::rhs_expression); + state_stack_.emplace_back(path_state::lhs_expression); + ++p_; + ++column_; + break; + default: + state_stack_.back() = path_state::argument; + state_stack_.emplace_back(path_state::rhs_expression); + state_stack_.emplace_back(path_state::lhs_expression); + break; + } + break; + case path_state::identifier_or_function_expr: + switch(*p_) + { + case '(': + { + auto f = resources_.get_function(buffer, ec); + if (ec) + { + return jmespath_expression(); + } + buffer.clear(); + push_token(token(f), ec); + if (ec) {return jmespath_expression();} + state_stack_.back() = path_state::function_expression; + state_stack_.emplace_back(path_state::expression_or_expression_type); + ++p_; + ++column_; + break; + } + default: + { + push_token(token(jsoncons::make_unique(buffer)), ec); + if (ec) {return jmespath_expression();} + buffer.clear(); + state_stack_.pop_back(); + break; + } + } + break; + + case path_state::function_expression: + switch (*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(ec); + break; + case ',': + push_token(token(current_node_arg), ec); + if (ec) {return jmespath_expression();} + state_stack_.emplace_back(path_state::expression_or_expression_type); + ++p_; + ++column_; + break; + case ')': + { + push_token(token(end_function_arg), ec); + if (ec) {return jmespath_expression();} + state_stack_.pop_back(); + ++p_; + ++column_; + break; + } + default: + break; + } + break; + + case path_state::argument: + push_token(argument_arg, ec); + if (ec) {return jmespath_expression();} + state_stack_.pop_back(); + break; + + case path_state::expression_type: + push_token(end_expression_type_arg, ec); + push_token(argument_arg, ec); + if (ec) {return jmespath_expression();} + state_stack_.pop_back(); + break; + + case path_state::quoted_string: + switch (*p_) + { + case '\"': + state_stack_.pop_back(); // quoted_string + ++p_; + ++column_; + break; + case '\\': + state_stack_.emplace_back(path_state::quoted_string_escape_char); + ++p_; + ++column_; + break; + default: + buffer.push_back(*p_); + ++p_; + ++column_; + break; + }; + break; + + case path_state::unquoted_string: + switch (*p_) + { + case ' ':case '\t':case '\r':case '\n': + state_stack_.pop_back(); // unquoted_string + advance_past_space_character(ec); + break; + default: + if ((*p_ >= '0' && *p_ <= '9') || (*p_ >= 'A' && *p_ <= 'Z') || (*p_ >= 'a' && *p_ <= 'z') || (*p_ == '_')) + { + buffer.push_back(*p_); + ++p_; + ++column_; + } + else + { + state_stack_.pop_back(); // unquoted_string + } + break; + }; + break; + case path_state::raw_string_escape_char: + switch (*p_) + { + case '\'': + buffer.push_back(*p_); + state_stack_.pop_back(); + ++p_; + ++column_; + break; + default: + buffer.push_back('\\'); + buffer.push_back(*p_); + state_stack_.pop_back(); + ++p_; + ++column_; + break; + } + break; + case path_state::quoted_string_escape_char: + switch (*p_) + { + case '\"': + buffer.push_back('\"'); + ++p_; + ++column_; + state_stack_.pop_back(); + break; + case '\\': + buffer.push_back('\\'); + ++p_; + ++column_; + state_stack_.pop_back(); + break; + case '/': + buffer.push_back('/'); + ++p_; + ++column_; + state_stack_.pop_back(); + break; + case 'b': + buffer.push_back('\b'); + ++p_; + ++column_; + state_stack_.pop_back(); + break; + case 'f': + buffer.push_back('\f'); + ++p_; + ++column_; + state_stack_.pop_back(); + break; + case 'n': + buffer.push_back('\n'); + ++p_; + ++column_; + state_stack_.pop_back(); + break; + case 'r': + buffer.push_back('\r'); + ++p_; + ++column_; + state_stack_.pop_back(); + break; + case 't': + buffer.push_back('\t'); + ++p_; + ++column_; + state_stack_.pop_back(); + break; + case 'u': + ++p_; + ++column_; + state_stack_.back() = path_state::escape_u1; + break; + default: + ec = jmespath_errc::illegal_escaped_character; + return jmespath_expression(); + } + break; + case path_state::escape_u1: + cp = append_to_codepoint(0, *p_, ec); + if (ec) + { + return jmespath_expression(); + } + ++p_; + ++column_; + state_stack_.back() = path_state::escape_u2; + break; + case path_state::escape_u2: + cp = append_to_codepoint(cp, *p_, ec); + if (ec) + { + return jmespath_expression(); + } + ++p_; + ++column_; + state_stack_.back() = path_state::escape_u3; + break; + case path_state::escape_u3: + cp = append_to_codepoint(cp, *p_, ec); + if (ec) + { + return jmespath_expression(); + } + ++p_; + ++column_; + state_stack_.back() = path_state::escape_u4; + break; + case path_state::escape_u4: + cp = append_to_codepoint(cp, *p_, ec); + if (ec) + { + return jmespath_expression(); + } + if (unicode_traits::is_high_surrogate(cp)) + { + ++p_; + ++column_; + state_stack_.back() = path_state::escape_expect_surrogate_pair1; + } + else + { + unicode_traits::convert(&cp, 1, buffer); + ++p_; + ++column_; + state_stack_.pop_back(); + } + break; + case path_state::escape_expect_surrogate_pair1: + switch (*p_) + { + case '\\': + ++p_; + ++column_; + state_stack_.back() = path_state::escape_expect_surrogate_pair2; + break; + default: + ec = jmespath_errc::invalid_codepoint; + return jmespath_expression(); + } + break; + case path_state::escape_expect_surrogate_pair2: + switch (*p_) + { + case 'u': + ++p_; + ++column_; + state_stack_.back() = path_state::escape_u5; + break; + default: + ec = jmespath_errc::invalid_codepoint; + return jmespath_expression(); + } + break; + case path_state::escape_u5: + cp2 = append_to_codepoint(0, *p_, ec); + if (ec) + { + return jmespath_expression(); + } + ++p_; + ++column_; + state_stack_.back() = path_state::escape_u6; + break; + case path_state::escape_u6: + cp2 = append_to_codepoint(cp2, *p_, ec); + if (ec) + { + return jmespath_expression(); + } + ++p_; + ++column_; + state_stack_.back() = path_state::escape_u7; + break; + case path_state::escape_u7: + cp2 = append_to_codepoint(cp2, *p_, ec); + if (ec) + { + return jmespath_expression(); + } + ++p_; + ++column_; + state_stack_.back() = path_state::escape_u8; + break; + case path_state::escape_u8: + { + cp2 = append_to_codepoint(cp2, *p_, ec); + if (ec) + { + return jmespath_expression(); + } + uint32_t codepoint = 0x10000 + ((cp & 0x3FF) << 10) + (cp2 & 0x3FF); + unicode_traits::convert(&codepoint, 1, buffer); + state_stack_.pop_back(); + ++p_; + ++column_; + break; + } + case path_state::raw_string: + switch (*p_) + { + case '\'': + { + push_token(token(literal_arg, Json(buffer)), ec); + if (ec) {return jmespath_expression();} + buffer.clear(); + state_stack_.pop_back(); // raw_string + ++p_; + ++column_; + break; + } + case '\\': + state_stack_.emplace_back(path_state::raw_string_escape_char); + ++p_; + ++column_; + break; + default: + buffer.push_back(*p_); + ++p_; + ++column_; + break; + }; + break; + case path_state::literal: + switch (*p_) + { + case '`': + { + json_decoder decoder; + basic_json_reader> reader(buffer, decoder); + std::error_code parse_ec; + reader.read(parse_ec); + if (parse_ec) + { + ec = jmespath_errc::invalid_literal; + return jmespath_expression(); + } + auto j = decoder.get_result(); + + push_token(token(literal_arg, std::move(j)), ec); + if (ec) {return jmespath_expression();} + buffer.clear(); + state_stack_.pop_back(); // json_value + ++p_; + ++column_; + break; + } + case '\\': + if (p_+1 < end_input_) + { + ++p_; + ++column_; + if (*p_ != '`') + { + buffer.push_back('\\'); + } + buffer.push_back(*p_); + } + else + { + ec = jmespath_errc::unexpected_end_of_input; + return jmespath_expression(); + } + ++p_; + ++column_; + break; + default: + buffer.push_back(*p_); + ++p_; + ++column_; + break; + }; + break; + case path_state::number: + switch(*p_) + { + case '-': + buffer.push_back(*p_); + state_stack_.back() = path_state::digit; + ++p_; + ++column_; + break; + default: + state_stack_.back() = path_state::digit; + break; + } + break; + case path_state::digit: + switch(*p_) + { + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8':case '9': + buffer.push_back(*p_); + ++p_; + ++column_; + break; + default: + state_stack_.pop_back(); // digit + break; + } + break; + + case path_state::bracket_specifier: + switch(*p_) + { + case '*': + push_token(token(jsoncons::make_unique()), ec); + if (ec) {return jmespath_expression();} + state_stack_.back() = path_state::expect_rbracket; + ++p_; + ++column_; + break; + case ']': // [] + push_token(token(jsoncons::make_unique()), ec); + if (ec) {return jmespath_expression();} + state_stack_.pop_back(); // bracket_specifier + ++p_; + ++column_; + break; + case '?': + push_token(token(begin_filter_arg), ec); + if (ec) {return jmespath_expression();} + state_stack_.back() = path_state::filter; + state_stack_.emplace_back(path_state::rhs_expression); + state_stack_.emplace_back(path_state::lhs_expression); + ++p_; + ++column_; + break; + case ':': // slice_expression + state_stack_.back() = path_state::rhs_slice_expression_stop ; + state_stack_.emplace_back(path_state::number); + ++p_; + ++column_; + break; + // number + case '-':case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8':case '9': + state_stack_.back() = path_state::index_or_slice_expression; + state_stack_.emplace_back(path_state::number); + break; + default: + ec = jmespath_errc::expected_index_expression; + return jmespath_expression(); + } + break; + case path_state::bracket_specifier_or_multi_select_list: + switch(*p_) + { + case '*': + if (p_+1 >= end_input_) + { + ec = jmespath_errc::unexpected_end_of_input; + return jmespath_expression(); + } + if (*(p_+1) == ']') + { + state_stack_.back() = path_state::bracket_specifier; + } + else + { + push_token(token(begin_multi_select_list_arg), ec); + if (ec) {return jmespath_expression();} + state_stack_.back() = path_state::multi_select_list; + state_stack_.emplace_back(path_state::lhs_expression); + } + break; + case ']': // [] + case '?': + case ':': // slice_expression + case '-':case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8':case '9': + state_stack_.back() = path_state::bracket_specifier; + break; + default: + push_token(token(begin_multi_select_list_arg), ec); + if (ec) {return jmespath_expression();} + state_stack_.back() = path_state::multi_select_list; + state_stack_.emplace_back(path_state::lhs_expression); + break; + } + break; + + case path_state::expect_multi_select_list: + switch(*p_) + { + case ']': + case '?': + case ':': + case '-':case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8':case '9': + ec = jmespath_errc::expected_multi_select_list; + return jmespath_expression(); + case '*': + push_token(token(jsoncons::make_unique()), ec); + if (ec) {return jmespath_expression();} + state_stack_.back() = path_state::expect_rbracket; + ++p_; + ++column_; + break; + default: + push_token(token(begin_multi_select_list_arg), ec); + if (ec) {return jmespath_expression();} + state_stack_.back() = path_state::multi_select_list; + state_stack_.emplace_back(path_state::lhs_expression); + break; + } + break; + + case path_state::multi_select_hash: + switch(*p_) + { + case '*': + case ']': + case '?': + case ':': + case '-':case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8':case '9': + break; + default: + state_stack_.back() = path_state::key_val_expr; + break; + } + break; + + case path_state::index_or_slice_expression: + switch(*p_) + { + case ']': + { + if (buffer.empty()) + { + push_token(token(jsoncons::make_unique()), ec); + if (ec) {return jmespath_expression();} + } + else + { + int64_t val{ 0 }; + auto r = jsoncons::detail::to_integer(buffer.data(), buffer.size(), val); + if (!r) + { + ec = jmespath_errc::invalid_number; + return jmespath_expression(); + } + push_token(token(jsoncons::make_unique(val)), ec); + if (ec) {return jmespath_expression();} + + buffer.clear(); + } + state_stack_.pop_back(); // bracket_specifier + ++p_; + ++column_; + break; + } + case ':': + { + if (!buffer.empty()) + { + int64_t val; + auto r = jsoncons::detail::to_integer(buffer.data(), buffer.size(), val); + if (!r) + { + ec = jmespath_errc::invalid_number; + return jmespath_expression(); + } + slic.start_ = val; + buffer.clear(); + } + state_stack_.back() = path_state::rhs_slice_expression_stop; + state_stack_.emplace_back(path_state::number); + ++p_; + ++column_; + break; + } + default: + ec = jmespath_errc::expected_rbracket; + return jmespath_expression(); + } + break; + case path_state::rhs_slice_expression_stop : + { + if (!buffer.empty()) + { + int64_t val{ 0 }; + auto r = jsoncons::detail::to_integer(buffer.data(), buffer.size(), val); + if (!r) + { + ec = jmespath_errc::invalid_number; + return jmespath_expression(); + } + slic.stop_ = jsoncons::optional(val); + buffer.clear(); + } + switch(*p_) + { + case ']': + push_token(token(jsoncons::make_unique(slic)), ec); + if (ec) {return jmespath_expression();} + slic = slice{}; + state_stack_.pop_back(); // bracket_specifier2 + ++p_; + ++column_; + break; + case ':': + state_stack_.back() = path_state::rhs_slice_expression_step; + state_stack_.emplace_back(path_state::number); + ++p_; + ++column_; + break; + default: + ec = jmespath_errc::expected_rbracket; + return jmespath_expression(); + } + break; + } + case path_state::rhs_slice_expression_step: + { + if (!buffer.empty()) + { + int64_t val{ 0 }; + auto r = jsoncons::detail::to_integer(buffer.data(), buffer.size(), val); + if (!r) + { + ec = jmespath_errc::invalid_number; + return jmespath_expression(); + } + if (val == 0) + { + ec = jmespath_errc::step_cannot_be_zero; + return jmespath_expression(); + } + slic.step_ = val; + buffer.clear(); + } + switch(*p_) + { + case ']': + push_token(token(jsoncons::make_unique(slic)), ec); + if (ec) {return jmespath_expression();} + buffer.clear(); + slic = slice{}; + state_stack_.pop_back(); // rhs_slice_expression_step + ++p_; + ++column_; + break; + default: + ec = jmespath_errc::expected_rbracket; + return jmespath_expression(); + } + break; + } + case path_state::expect_rbracket: + { + switch(*p_) + { + case ']': + state_stack_.pop_back(); // expect_rbracket + ++p_; + ++column_; + break; + default: + ec = jmespath_errc::expected_rbracket; + return jmespath_expression(); + } + break; + } + case path_state::expect_rparen: + switch (*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(ec); + break; + case ')': + ++p_; + ++column_; + push_token(rparen_arg, ec); + if (ec) {return jmespath_expression();} + state_stack_.back() = path_state::rhs_expression; + break; + default: + ec = jmespath_errc::expected_rparen; + return jmespath_expression(); + } + break; + case path_state::key_val_expr: + { + switch (*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(ec); + break; + case '\"': + state_stack_.back() = path_state::expect_colon; + state_stack_.emplace_back(path_state::key_expr); + state_stack_.emplace_back(path_state::quoted_string); + ++p_; + ++column_; + break; + case '\'': + state_stack_.back() = path_state::expect_colon; + state_stack_.emplace_back(path_state::raw_string); + ++p_; + ++column_; + break; + default: + if ((*p_ >= 'A' && *p_ <= 'Z') || (*p_ >= 'a' && *p_ <= 'z') || (*p_ == '_')) + { + state_stack_.back() = path_state::expect_colon; + state_stack_.emplace_back(path_state::key_expr); + state_stack_.emplace_back(path_state::unquoted_string); + buffer.push_back(*p_); + ++p_; + ++column_; + } + else + { + ec = jmespath_errc::expected_key; + return jmespath_expression(); + } + break; + }; + break; + } + case path_state::cmp_lt_or_lte: + { + switch(*p_) + { + case '=': + push_token(token(resources_.get_lte_operator()), ec); + push_token(token(current_node_arg), ec); + if (ec) {return jmespath_expression();} + state_stack_.pop_back(); + ++p_; + ++column_; + break; + default: + push_token(token(resources_.get_lt_operator()), ec); + push_token(token(current_node_arg), ec); + if (ec) {return jmespath_expression();} + state_stack_.pop_back(); + break; + } + break; + } + case path_state::cmp_gt_or_gte: + { + switch(*p_) + { + case '=': + push_token(token(resources_.get_gte_operator()), ec); + push_token(token(current_node_arg), ec); + if (ec) {return jmespath_expression();} + state_stack_.pop_back(); + ++p_; + ++column_; + break; + default: + push_token(token(resources_.get_gt_operator()), ec); + push_token(token(current_node_arg), ec); + if (ec) {return jmespath_expression();} + state_stack_.pop_back(); + break; + } + break; + } + case path_state::cmp_eq: + { + switch(*p_) + { + case '=': + push_token(token(resources_.get_eq_operator()), ec); + push_token(token(current_node_arg), ec); + if (ec) {return jmespath_expression();} + state_stack_.pop_back(); + ++p_; + ++column_; + break; + default: + ec = jmespath_errc::expected_comparator; + return jmespath_expression(); + } + break; + } + case path_state::cmp_ne: + { + switch(*p_) + { + case '=': + push_token(token(resources_.get_ne_operator()), ec); + push_token(token(current_node_arg), ec); + if (ec) {return jmespath_expression();} + state_stack_.pop_back(); + ++p_; + ++column_; + break; + default: + ec = jmespath_errc::expected_comparator; + return jmespath_expression(); + } + break; + } + case path_state::expect_dot: + { + switch(*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(ec); + break; + case '.': + state_stack_.pop_back(); // expect_dot + ++p_; + ++column_; + break; + default: + ec = jmespath_errc::expected_dot; + return jmespath_expression(); + } + break; + } + case path_state::expect_pipe_or_or: + { + switch(*p_) + { + case '|': + push_token(token(resources_.get_or_operator()), ec); + push_token(token(current_node_arg), ec); + if (ec) {return jmespath_expression();} + state_stack_.pop_back(); + ++p_; + ++column_; + break; + default: + push_token(token(pipe_arg), ec); + if (ec) {return jmespath_expression();} + state_stack_.pop_back(); + break; + } + break; + } + case path_state::expect_and: + { + switch(*p_) + { + case '&': + push_token(token(resources_.get_and_operator()), ec); + push_token(token(current_node_arg), ec); + if (ec) {return jmespath_expression();} + state_stack_.pop_back(); // expect_and + ++p_; + ++column_; + break; + default: + ec = jmespath_errc::expected_and; + return jmespath_expression(); + } + break; + } + case path_state::multi_select_list: + { + switch(*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(ec); + break; + case ',': + push_token(token(separator_arg), ec); + if (ec) {return jmespath_expression();} + state_stack_.emplace_back(path_state::lhs_expression); + ++p_; + ++column_; + break; + case '[': + state_stack_.emplace_back(path_state::lhs_expression); + break; + case '.': + state_stack_.emplace_back(path_state::sub_expression); + ++p_; + ++column_; + break; + case '|': + { + ++p_; + ++column_; + state_stack_.emplace_back(path_state::lhs_expression); + state_stack_.emplace_back(path_state::expect_pipe_or_or); + break; + } + case ']': + { + push_token(token(end_multi_select_list_arg), ec); + if (ec) {return jmespath_expression();} + state_stack_.pop_back(); + + ++p_; + ++column_; + break; + } + default: + ec = jmespath_errc::expected_rbracket; + return jmespath_expression(); + } + break; + } + case path_state::filter: + { + switch(*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(ec); + break; + case ']': + { + push_token(token(end_filter_arg), ec); + if (ec) {return jmespath_expression();} + state_stack_.pop_back(); + ++p_; + ++column_; + break; + } + default: + ec = jmespath_errc::expected_rbracket; + return jmespath_expression(); + } + break; + } + case path_state::expect_rbrace: + { + switch(*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(ec); + break; + case ',': + push_token(token(separator_arg), ec); + if (ec) {return jmespath_expression();} + state_stack_.back() = path_state::key_val_expr; + ++p_; + ++column_; + break; + case '[': + case '{': + state_stack_.emplace_back(path_state::lhs_expression); + break; + case '.': + state_stack_.emplace_back(path_state::sub_expression); + ++p_; + ++column_; + break; + case '}': + { + state_stack_.pop_back(); + push_token(end_multi_select_hash_arg, ec); + if (ec) {return jmespath_expression();} + ++p_; + ++column_; + break; + } + default: + ec = jmespath_errc::expected_rbrace; + return jmespath_expression(); + } + break; + } + case path_state::expect_colon: + { + switch(*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(ec); + break; + case ':': + state_stack_.back() = path_state::expect_rbrace; + state_stack_.emplace_back(path_state::lhs_expression); + ++p_; + ++column_; + break; + default: + ec = jmespath_errc::expected_colon; + return jmespath_expression(); + } + break; + } + } + + } + + if (state_stack_.empty()) + { + ec = jmespath_errc::syntax_error; + return jmespath_expression(); + } + while (state_stack_.size() > 1) + { + switch (state_stack_.back()) + { + case path_state::rhs_expression: + if (state_stack_.size() > 1) + { + state_stack_.pop_back(); + } + else + { + ec = jmespath_errc::syntax_error; + return jmespath_expression(); + } + break; + case path_state::val_expr: + push_token(token(jsoncons::make_unique(buffer)), ec); + if (ec) {return jmespath_expression();} + state_stack_.pop_back(); + break; + case path_state::identifier_or_function_expr: + push_token(token(jsoncons::make_unique(buffer)), ec); + if (ec) {return jmespath_expression();} + state_stack_.pop_back(); + break; + case path_state::unquoted_string: + state_stack_.pop_back(); + break; + default: + ec = jmespath_errc::syntax_error; + return jmespath_expression(); + break; + } + } + + if (!(state_stack_.size() == 1 && state_stack_.back() == path_state::rhs_expression)) + { + ec = jmespath_errc::unexpected_end_of_input; + return jmespath_expression(); + } + + state_stack_.pop_back(); + + push_token(end_of_expression_arg, ec); + if (ec) {return jmespath_expression();} + + //for (auto& t : output_stack_) + //{ + // std::cout << t.to_string() << std::endl; + //} + + return jmespath_expression(std::move(resources_), std::move(output_stack_)); + } + + void advance_past_space_character(std::error_code& ec) + { + switch (*p_) + { + case ' ':case '\t': + ++p_; + ++column_; + break; + case '\r': + if (p_+1 >= end_input_) + { + ec = jmespath_errc::unexpected_end_of_input; + return; + } + if (*(p_+1) == '\n') + ++p_; + ++line_; + column_ = 1; + ++p_; + break; + case '\n': + ++line_; + column_ = 1; + ++p_; + break; + default: + break; + } + } + + void unwind_rparen(std::error_code& ec) + { + auto it = operator_stack_.rbegin(); + while (it != operator_stack_.rend() && !it->is_lparen()) + { + output_stack_.emplace_back(std::move(*it)); + ++it; + } + if (it == operator_stack_.rend()) + { + ec = jmespath_errc::unbalanced_parentheses; + return; + } + ++it; + operator_stack_.erase(it.base(),operator_stack_.end()); + } + + void push_token(token&& tok, std::error_code& ec) + { + switch (tok.type()) + { + case token_kind::end_filter: + { + unwind_rparen(ec); + std::vector toks; + auto it = output_stack_.rbegin(); + while (it != output_stack_.rend() && it->type() != token_kind::begin_filter) + { + toks.emplace_back(std::move(*it)); + ++it; + } + if (it == output_stack_.rend()) + { + ec = jmespath_errc::unbalanced_braces; + return; + } + if (toks.back().type() != token_kind::literal) + { + toks.emplace_back(current_node_arg); + } + std::reverse(toks.begin(), toks.end()); + ++it; + output_stack_.erase(it.base(),output_stack_.end()); + + if (!output_stack_.empty() && output_stack_.back().is_projection() && + (tok.precedence_level() < output_stack_.back().precedence_level() || + (tok.precedence_level() == output_stack_.back().precedence_level() && tok.is_right_associative()))) + { + output_stack_.back().expression_->add_expression(jsoncons::make_unique(std::move(toks))); + } + else + { + output_stack_.emplace_back(token(jsoncons::make_unique(std::move(toks)))); + } + break; + } + case token_kind::end_multi_select_list: + { + unwind_rparen(ec); + std::vector> vals; + auto it = output_stack_.rbegin(); + while (it != output_stack_.rend() && it->type() != token_kind::begin_multi_select_list) + { + std::vector toks; + do + { + toks.emplace_back(std::move(*it)); + ++it; + } while (it != output_stack_.rend() && it->type() != token_kind::begin_multi_select_list && it->type() != token_kind::separator); + if (it->type() == token_kind::separator) + { + ++it; + } + if (toks.back().type() != token_kind::literal) + { + toks.emplace_back(current_node_arg); + } + std::reverse(toks.begin(), toks.end()); + vals.emplace_back(std::move(toks)); + } + if (it == output_stack_.rend()) + { + ec = jmespath_errc::unbalanced_braces; + return; + } + ++it; + output_stack_.erase(it.base(),output_stack_.end()); + std::reverse(vals.begin(), vals.end()); + if (!output_stack_.empty() && output_stack_.back().is_projection() && + (tok.precedence_level() < output_stack_.back().precedence_level() || + (tok.precedence_level() == output_stack_.back().precedence_level() && tok.is_right_associative()))) + { + output_stack_.back().expression_->add_expression(jsoncons::make_unique(std::move(vals))); + } + else + { + output_stack_.emplace_back(token(jsoncons::make_unique(std::move(vals)))); + } + break; + } + case token_kind::end_multi_select_hash: + { + unwind_rparen(ec); + std::vector key_toks; + auto it = output_stack_.rbegin(); + while (it != output_stack_.rend() && it->type() != token_kind::begin_multi_select_hash) + { + std::vector toks; + do + { + toks.emplace_back(std::move(*it)); + ++it; + } while (it != output_stack_.rend() && it->type() != token_kind::key); + JSONCONS_ASSERT(it->is_key()); + auto key = std::move(it->key_); + ++it; + if (it->type() == token_kind::separator) + { + ++it; + } + if (toks.back().type() != token_kind::literal) + { + toks.emplace_back(current_node_arg); + } + std::reverse(toks.begin(), toks.end()); + key_toks.emplace_back(std::move(key), std::move(toks)); + } + if (it == output_stack_.rend()) + { + ec = jmespath_errc::unbalanced_braces; + return; + } + std::reverse(key_toks.begin(), key_toks.end()); + ++it; + output_stack_.erase(it.base(),output_stack_.end()); + + if (!output_stack_.empty() && output_stack_.back().is_projection() && + (tok.precedence_level() < output_stack_.back().precedence_level() || + (tok.precedence_level() == output_stack_.back().precedence_level() && tok.is_right_associative()))) + { + output_stack_.back().expression_->add_expression(jsoncons::make_unique(std::move(key_toks))); + } + else + { + output_stack_.emplace_back(token(jsoncons::make_unique(std::move(key_toks)))); + } + break; + } + case token_kind::end_expression_type: + { + std::vector toks; + auto it = output_stack_.rbegin(); + while (it != output_stack_.rend() && it->type() != token_kind::begin_expression_type) + { + toks.emplace_back(std::move(*it)); + ++it; + } + if (it == output_stack_.rend()) + { + JSONCONS_THROW(json_runtime_error("Unbalanced braces")); + } + if (toks.back().type() != token_kind::literal) + { + toks.emplace_back(current_node_arg); + } + std::reverse(toks.begin(), toks.end()); + output_stack_.erase(it.base(),output_stack_.end()); + output_stack_.emplace_back(token(jsoncons::make_unique(std::move(toks)))); + break; + } + case token_kind::literal: + if (!output_stack_.empty() && output_stack_.back().type() == token_kind::current_node) + { + output_stack_.back() = std::move(tok); + } + else + { + output_stack_.emplace_back(std::move(tok)); + } + break; + case token_kind::expression: + if (!output_stack_.empty() && output_stack_.back().is_projection() && + (tok.precedence_level() < output_stack_.back().precedence_level() || + (tok.precedence_level() == output_stack_.back().precedence_level() && tok.is_right_associative()))) + { + output_stack_.back().expression_->add_expression(std::move(tok.expression_)); + } + else + { + output_stack_.emplace_back(std::move(tok)); + } + break; + case token_kind::rparen: + { + unwind_rparen(ec); + break; + } + case token_kind::end_function: + { + unwind_rparen(ec); + std::vector toks; + auto it = output_stack_.rbegin(); + std::size_t arg_count = 0; + while (it != output_stack_.rend() && it->type() != token_kind::function) + { + if (it->type() == token_kind::argument) + { + ++arg_count; + } + toks.emplace_back(std::move(*it)); + ++it; + } + if (it == output_stack_.rend()) + { + ec = jmespath_errc::unbalanced_parentheses; + return; + } + if (it->arity() && arg_count != *(it->arity())) + { + ec = jmespath_errc::invalid_arity; + return; + } + if (toks.back().type() != token_kind::literal) + { + toks.emplace_back(current_node_arg); + } + std::reverse(toks.begin(), toks.end()); + toks.push_back(std::move(*it)); + ++it; + output_stack_.erase(it.base(),output_stack_.end()); + + if (!output_stack_.empty() && output_stack_.back().is_projection() && + (tok.precedence_level() < output_stack_.back().precedence_level() || + (tok.precedence_level() == output_stack_.back().precedence_level() && tok.is_right_associative()))) + { + output_stack_.back().expression_->add_expression(jsoncons::make_unique(std::move(toks))); + } + else + { + output_stack_.emplace_back(token(jsoncons::make_unique(std::move(toks)))); + } + break; + } + case token_kind::end_of_expression: + { + auto it = operator_stack_.rbegin(); + while (it != operator_stack_.rend()) + { + output_stack_.emplace_back(std::move(*it)); + ++it; + } + operator_stack_.clear(); + break; + } + case token_kind::unary_operator: + case token_kind::binary_operator: + { + if (operator_stack_.empty() || operator_stack_.back().is_lparen()) + { + operator_stack_.emplace_back(std::move(tok)); + } + else if (tok.precedence_level() < operator_stack_.back().precedence_level() + || (tok.precedence_level() == operator_stack_.back().precedence_level() && tok.is_right_associative())) + { + operator_stack_.emplace_back(std::move(tok)); + } + else + { + auto it = operator_stack_.rbegin(); + while (it != operator_stack_.rend() && it->is_operator() + && (tok.precedence_level() > it->precedence_level() + || (tok.precedence_level() == it->precedence_level() && tok.is_right_associative()))) + { + output_stack_.emplace_back(std::move(*it)); + ++it; + } + + operator_stack_.erase(it.base(),operator_stack_.end()); + operator_stack_.emplace_back(std::move(tok)); + } + break; + } + case token_kind::separator: + { + unwind_rparen(ec); + output_stack_.emplace_back(std::move(tok)); + operator_stack_.emplace_back(token(lparen_arg)); + break; + } + case token_kind::begin_filter: + output_stack_.emplace_back(std::move(tok)); + operator_stack_.emplace_back(token(lparen_arg)); + break; + case token_kind::begin_multi_select_list: + output_stack_.emplace_back(std::move(tok)); + operator_stack_.emplace_back(token(lparen_arg)); + break; + case token_kind::begin_multi_select_hash: + output_stack_.emplace_back(std::move(tok)); + operator_stack_.emplace_back(token(lparen_arg)); + break; + case token_kind::function: + output_stack_.emplace_back(std::move(tok)); + operator_stack_.emplace_back(token(lparen_arg)); + break; + case token_kind::current_node: + output_stack_.emplace_back(std::move(tok)); + break; + case token_kind::key: + case token_kind::pipe: + case token_kind::argument: + case token_kind::begin_expression_type: + output_stack_.emplace_back(std::move(tok)); + break; + case token_kind::lparen: + operator_stack_.emplace_back(std::move(tok)); + break; + default: + break; + } + } + + uint32_t append_to_codepoint(uint32_t cp, int c, std::error_code& ec) + { + cp *= 16; + if (c >= '0' && c <= '9') + { + cp += c - '0'; + } + else if (c >= 'a' && c <= 'f') + { + cp += c - 'a' + 10; + } + else if (c >= 'A' && c <= 'F') + { + cp += c - 'A' + 10; + } + else + { + ec = jmespath_errc::invalid_codepoint; + } + return cp; + } + }; + + } // detail + + template + using jmespath_expression = typename jsoncons::jmespath::detail::jmespath_evaluator::jmespath_expression; + + template + Json search(const Json& doc, const typename Json::string_view_type& path) + { + jsoncons::jmespath::detail::jmespath_evaluator evaluator; + std::error_code ec; + auto expr = evaluator.compile(path.data(), path.size(), ec); + if (ec) + { + JSONCONS_THROW(jmespath_error(ec, evaluator.line(), evaluator.column())); + } + auto result = expr.evaluate(doc, ec); + if (ec) + { + JSONCONS_THROW(jmespath_error(ec)); + } + return result; + } + + template + Json search(const Json& doc, const typename Json::string_view_type& path, std::error_code& ec) + { + jsoncons::jmespath::detail::jmespath_evaluator evaluator; + auto expr = evaluator.compile(path.data(), path.size(), ec); + if (ec) + { + return Json::null(); + } + auto result = expr.evaluate(doc, ec); + if (ec) + { + return Json::null(); + } + return result; + } + + template + jmespath_expression make_expression(const typename json::string_view_type& expr) + { + return jmespath_expression::compile(expr); + } + + template + jmespath_expression make_expression(const typename json::string_view_type& expr, + std::error_code& ec) + { + return jmespath_expression::compile(expr, ec); + } + + +} // namespace jmespath +} // namespace jsoncons + +#endif diff --git a/include/jsoncons_ext/jmespath/jmespath_error.hpp b/include/jsoncons_ext/jmespath/jmespath_error.hpp new file mode 100644 index 0000000..6422c65 --- /dev/null +++ b/include/jsoncons_ext/jmespath/jmespath_error.hpp @@ -0,0 +1,215 @@ +/// Copyright 2020 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JMESPATH_JMESPATH_ERROR_HPP +#define JSONCONS_JMESPATH_JMESPATH_ERROR_HPP + +#include +#include + +namespace jsoncons { namespace jmespath { + + class jmespath_error : public std::system_error, public virtual json_exception + { + std::size_t line_number_; + std::size_t column_number_; + mutable std::string what_; + public: + jmespath_error(std::error_code ec) + : std::system_error(ec), line_number_(0), column_number_(0) + { + } + jmespath_error(std::error_code ec, const std::string& what_arg) + : std::system_error(ec, what_arg), line_number_(0), column_number_(0) + { + } + jmespath_error(std::error_code ec, std::size_t position) + : std::system_error(ec), line_number_(0), column_number_(position) + { + } + jmespath_error(std::error_code ec, std::size_t line, std::size_t column) + : std::system_error(ec), line_number_(line), column_number_(column) + { + } + jmespath_error(const jmespath_error& other) = default; + + jmespath_error(jmespath_error&& other) = default; + + const char* what() const noexcept override + { + if (what_.empty()) + { + JSONCONS_TRY + { + what_.append(std::system_error::what()); + if (line_number_ != 0 && column_number_ != 0) + { + what_.append(" at line "); + what_.append(std::to_string(line_number_)); + what_.append(" and column "); + what_.append(std::to_string(column_number_)); + } + else if (column_number_ != 0) + { + what_.append(" at position "); + what_.append(std::to_string(column_number_)); + } + return what_.c_str(); + } + JSONCONS_CATCH(...) + { + return std::system_error::what(); + } + } + else + { + return what_.c_str(); + } + } + + std::size_t line() const noexcept + { + return line_number_; + } + + std::size_t column() const noexcept + { + return column_number_; + } + }; + +enum class jmespath_errc +{ + success = 0, + expected_identifier, + expected_index, + expected_A_Za_Z_, + expected_rbracket, + expected_rparen, + expected_rbrace, + expected_colon, + expected_dot, + expected_or, + expected_and, + expected_multi_select_list, + invalid_number, + invalid_literal, + expected_comparator, + expected_key, + invalid_argument, + unknown_function, + invalid_type, + unexpected_end_of_input, + step_cannot_be_zero, + syntax_error, + invalid_codepoint, + illegal_escaped_character, + unbalanced_parentheses, + unbalanced_braces, + invalid_arity, + identifier_not_found, + expected_index_expression, + unknown_error +}; + +class jmespath_error_category_impl + : public std::error_category +{ +public: + const char* name() const noexcept override + { + return "jsoncons/jmespath"; + } + std::string message(int ev) const override + { + switch (static_cast(ev)) + { + case jmespath_errc::expected_identifier: + return "Expected identifier"; + case jmespath_errc::expected_index: + return "Expected index"; + case jmespath_errc::expected_A_Za_Z_: + return "Expected A-Z, a-z, or _"; + case jmespath_errc::expected_rbracket: + return "Expected ]"; + case jmespath_errc::expected_rparen: + return "Expected )"; + case jmespath_errc::expected_rbrace: + return "Expected }"; + case jmespath_errc::expected_colon: + return "Expected :"; + case jmespath_errc::expected_dot: + return "Expected \".\""; + case jmespath_errc::expected_or: + return "Expected \"||\""; + case jmespath_errc::expected_and: + return "Expected \"&&\""; + case jmespath_errc::expected_multi_select_list: + return "Expected multi-select-list"; + case jmespath_errc::invalid_number: + return "Invalid number"; + case jmespath_errc::invalid_literal: + return "Invalid literal"; + case jmespath_errc::expected_comparator: + return "Expected <, <=, ==, >=, > or !="; + case jmespath_errc::expected_key: + return "Expected key"; + case jmespath_errc::invalid_argument: + return "Invalid argument type"; + case jmespath_errc::unknown_function: + return "Unknown function"; + case jmespath_errc::invalid_type: + return "Invalid type"; + case jmespath_errc::unexpected_end_of_input: + return "Unexpected end of jmespath input"; + case jmespath_errc::step_cannot_be_zero: + return "Slice step cannot be zero"; + case jmespath_errc::syntax_error: + return "Syntax error"; + case jmespath_errc::invalid_codepoint: + return "Invalid codepoint"; + case jmespath_errc::illegal_escaped_character: + return "Illegal escaped character"; + case jmespath_errc::unbalanced_parentheses: + return "Unbalanced parentheses"; + case jmespath_errc::unbalanced_braces: + return "Unbalanced braces"; + case jmespath_errc::invalid_arity: + return "Function called with wrong number of arguments"; + case jmespath_errc::identifier_not_found: + return "Identifier not found"; + case jmespath_errc::expected_index_expression: + return "Expected index expression"; + case jmespath_errc::unknown_error: + default: + return "Unknown jmespath parser error"; + } + } +}; + +inline +const std::error_category& jmespath_error_category() +{ + static jmespath_error_category_impl instance; + return instance; +} + +inline +std::error_code make_error_code(jmespath_errc result) +{ + return std::error_code(static_cast(result),jmespath_error_category()); +} + +}} + +namespace std { + template<> + struct is_error_code_enum : public true_type + { + }; +} + +#endif diff --git a/include/jsoncons_ext/jsonpatch/jsonpatch.hpp b/include/jsoncons_ext/jsonpatch/jsonpatch.hpp new file mode 100644 index 0000000..ab4ace7 --- /dev/null +++ b/include/jsoncons_ext/jsonpatch/jsonpatch.hpp @@ -0,0 +1,579 @@ +// Copyright 2017 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSONPATCH_JSONPATCH_HPP +#define JSONCONS_JSONPATCH_JSONPATCH_HPP + +#include +#include +#include +#include // std::min +#include // std::move +#include +#include +#include + +namespace jsoncons { namespace jsonpatch { + +namespace detail { + + template + struct jsonpatch_names + { + static std::basic_string test_name() + { + static std::basic_string name{'t','e','s','t'}; + return name; + } + static std::basic_string add_name() + { + static std::basic_string name{'a','d','d'}; + return name; + } + static std::basic_string remove_name() + { + static std::basic_string name{'r','e','m','o','v','e'}; + return name; + } + static std::basic_string replace_name() + { + static std::basic_string name{'r','e','p','l','a','c','e'}; + return name; + } + static std::basic_string move_name() + { + static std::basic_string name{'m','o','v','e'}; + return name; + } + static std::basic_string copy_name() + { + static std::basic_string name{'c','o','p','y'}; + return name; + } + static std::basic_string op_name() + { + static std::basic_string name{'o','p'}; + return name; + } + static std::basic_string path_name() + { + static std::basic_string name{'p','a','t','h'}; + return name; + } + static std::basic_string from_name() + { + static std::basic_string name{'f','r','o','m'}; + return name; + } + static std::basic_string value_name() + { + static std::basic_string name{'v','a','l','u','e'}; + return name; + } + static std::basic_string dash_name() + { + static std::basic_string name{'-'}; + return name; + } + }; + + template + jsonpointer::basic_json_pointer definite_path(const Json& root, jsonpointer::basic_json_pointer& location) + { + using char_type = typename Json::char_type; + using string_type = std::basic_string; + + auto rit = location.rbegin(); + if (rit == location.rend()) + { + return location; + } + + if (*rit != jsonpatch_names::dash_name()) + { + return location; + } + + std::vector tokens; + for (auto it = location.begin(); it != location.rbegin().base()-1; ++it) + { + tokens.push_back(*it); + } + jsonpointer::basic_json_pointer pointer(tokens); + + std::error_code ec; + + Json val = jsonpointer::get(root, pointer, ec); + if (ec || !val.is_array()) + { + return location; + } + string_type last_token; + jsoncons::detail::from_integer(val.size(), last_token); + tokens.emplace_back(std::move(last_token)); + + return jsonpointer::basic_json_pointer(std::move(tokens)); + } + + enum class op_type {add,remove,replace}; + enum class state_type {begin,abort,commit}; + + template + struct operation_unwinder + { + using char_type = typename Json::char_type; + using string_type = std::basic_string; + using json_pointer_type = jsonpointer::basic_json_pointer; + + struct entry + { + op_type op; + json_pointer_type path; + Json value; + + entry(op_type op, const json_pointer_type& path, const Json& value) + : op(op), path(path), value(value) + { + } + + entry(const entry&) = default; + + entry(entry&&) = default; + + entry& operator=(const entry&) = default; + + entry& operator=(entry&&) = default; + }; + + Json& target; + state_type state; + std::vector stack; + + operation_unwinder(Json& j) + : target(j), state(state_type::begin) + { + } + + ~operation_unwinder() noexcept + { + std::error_code ec; + if (state != state_type::commit) + { + for (auto it = stack.rbegin(); it != stack.rend(); ++it) + { + if (it->op == op_type::add) + { + jsonpointer::add(target,it->path,it->value,ec); + if (ec) + { + //std::cout << "add: " << it->path << std::endl; + break; + } + } + else if (it->op == op_type::remove) + { + jsonpointer::remove(target,it->path,ec); + if (ec) + { + //std::cout << "remove: " << it->path << std::endl; + break; + } + } + else if (it->op == op_type::replace) + { + jsonpointer::replace(target,it->path,it->value,ec); + if (ec) + { + //std::cout << "replace: " << it->path << std::endl; + break; + } + } + } + } + } + }; + + template + Json from_diff(const Json& source, const Json& target, const typename Json::string_view_type& path) + { + using char_type = typename Json::char_type; + + Json result = typename Json::array(); + + if (source == target) + { + return result; + } + + if (source.is_array() && target.is_array()) + { + std::size_t common = (std::min)(source.size(),target.size()); + for (std::size_t i = 0; i < common; ++i) + { + std::basic_string ss(path); + ss.push_back('/'); + jsoncons::detail::from_integer(i,ss); + auto temp_diff = from_diff(source[i],target[i],ss); + result.insert(result.array_range().end(),temp_diff.array_range().begin(),temp_diff.array_range().end()); + } + // Element in source, not in target - remove + for (std::size_t i = source.size(); i-- > target.size();) + { + std::basic_string ss(path); + ss.push_back('/'); + jsoncons::detail::from_integer(i,ss); + Json val(json_object_arg); + val.insert_or_assign(jsonpatch_names::op_name(), jsonpatch_names::remove_name()); + val.insert_or_assign(jsonpatch_names::path_name(), ss); + result.push_back(std::move(val)); + } + // Element in target, not in source - add, + // Fix contributed by Alexander rog13 + for (std::size_t i = source.size(); i < target.size(); ++i) + { + const auto& a = target[i]; + std::basic_string ss(path); + ss.push_back('/'); + jsoncons::detail::from_integer(i,ss); + Json val(json_object_arg); + val.insert_or_assign(jsonpatch_names::op_name(), jsonpatch_names::add_name()); + val.insert_or_assign(jsonpatch_names::path_name(), ss); + val.insert_or_assign(jsonpatch_names::value_name(), a); + result.push_back(std::move(val)); + } + } + else if (source.is_object() && target.is_object()) + { + for (const auto& a : source.object_range()) + { + std::basic_string ss(path); + ss.push_back('/'); + jsonpointer::escape(a.key(),ss); + auto it = target.find(a.key()); + if (it != target.object_range().end()) + { + auto temp_diff = from_diff(a.value(),it->value(),ss); + result.insert(result.array_range().end(),temp_diff.array_range().begin(),temp_diff.array_range().end()); + } + else + { + Json val(json_object_arg); + val.insert_or_assign(jsonpatch_names::op_name(), jsonpatch_names::remove_name()); + val.insert_or_assign(jsonpatch_names::path_name(), ss); + result.push_back(std::move(val)); + } + } + for (const auto& a : target.object_range()) + { + auto it = source.find(a.key()); + if (it == source.object_range().end()) + { + std::basic_string ss(path); + ss.push_back('/'); + jsonpointer::escape(a.key(),ss); + Json val(json_object_arg); + val.insert_or_assign(jsonpatch_names::op_name(), jsonpatch_names::add_name()); + val.insert_or_assign(jsonpatch_names::path_name(), ss); + val.insert_or_assign(jsonpatch_names::value_name(), a.value()); + result.push_back(std::move(val)); + } + } + } + else + { + Json val(json_object_arg); + val.insert_or_assign(jsonpatch_names::op_name(), jsonpatch_names::replace_name()); + val.insert_or_assign(jsonpatch_names::path_name(), path); + val.insert_or_assign(jsonpatch_names::value_name(), target); + result.push_back(std::move(val)); + } + + return result; + } +} + +template +void apply_patch(Json& target, const Json& patch, std::error_code& ec) +{ + using char_type = typename Json::char_type; + using string_type = std::basic_string; + using json_pointer_type = jsonpointer::basic_json_pointer; + + jsoncons::jsonpatch::detail::operation_unwinder unwinder(target); + std::error_code local_ec; + + // Validate + + for (const auto& operation : patch.array_range()) + { + unwinder.state =jsoncons::jsonpatch::detail::state_type::begin; + + auto it_op = operation.find(detail::jsonpatch_names::op_name()); + if (it_op == operation.object_range().end()) + { + ec = jsonpatch_errc::invalid_patch; + unwinder.state =jsoncons::jsonpatch::detail::state_type::abort; + return; + } + string_type op = it_op->value().template as(); + + auto it_path = operation.find(detail::jsonpatch_names::path_name()); + if (it_path == operation.object_range().end()) + { + ec = jsonpatch_errc::invalid_patch; + unwinder.state =jsoncons::jsonpatch::detail::state_type::abort; + return; + } + string_type path = it_path->value().template as(); + auto location = json_pointer_type::parse(path, local_ec); + if (local_ec) + { + ec = jsonpatch_errc::invalid_patch; + unwinder.state =jsoncons::jsonpatch::detail::state_type::abort; + return; + } + + if (op ==jsoncons::jsonpatch::detail::jsonpatch_names::test_name()) + { + Json val = jsonpointer::get(target,location,local_ec); + if (local_ec) + { + ec = jsonpatch_errc::test_failed; + unwinder.state =jsoncons::jsonpatch::detail::state_type::abort; + return; + } + auto it_value = operation.find(detail::jsonpatch_names::value_name()); + if (it_value == operation.object_range().end()) + { + ec = jsonpatch_errc::invalid_patch; + unwinder.state =jsoncons::jsonpatch::detail::state_type::abort; + return; + } + if (val != it_value->value()) + { + ec = jsonpatch_errc::test_failed; + unwinder.state =jsoncons::jsonpatch::detail::state_type::abort; + return; + } + } + else if (op ==jsoncons::jsonpatch::detail::jsonpatch_names::add_name()) + { + auto it_value = operation.find(detail::jsonpatch_names::value_name()); + if (it_value == operation.object_range().end()) + { + ec = jsonpatch_errc::invalid_patch; + unwinder.state =jsoncons::jsonpatch::detail::state_type::abort; + return; + } + Json val = it_value->value(); + auto npath = jsonpatch::detail::definite_path(target,location); + + std::error_code insert_ec; + jsonpointer::add_if_absent(target,npath,val,insert_ec); // try insert without replace + if (insert_ec) // try a replace + { + std::error_code select_ec; + Json orig_val = jsonpointer::get(target,npath,select_ec); + if (select_ec) // shouldn't happen + { + ec = jsonpatch_errc::add_failed; + unwinder.state =jsoncons::jsonpatch::detail::state_type::abort; + return; + } + std::error_code replace_ec; + jsonpointer::replace(target,npath,val,replace_ec); + if (replace_ec) + { + ec = jsonpatch_errc::add_failed; + unwinder.state =jsoncons::jsonpatch::detail::state_type::abort; + return; + } + unwinder.stack.emplace_back(detail::op_type::replace,npath,orig_val); + } + else // insert without replace succeeded + { + unwinder.stack.emplace_back(detail::op_type::remove,npath,Json::null()); + } + } + else if (op ==jsoncons::jsonpatch::detail::jsonpatch_names::remove_name()) + { + Json val = jsonpointer::get(target,location,local_ec); + if (local_ec) + { + ec = jsonpatch_errc::remove_failed; + unwinder.state =jsoncons::jsonpatch::detail::state_type::abort; + return; + } + jsonpointer::remove(target,location,local_ec); + if (local_ec) + { + ec = jsonpatch_errc::remove_failed; + unwinder.state =jsoncons::jsonpatch::detail::state_type::abort; + return; + } + unwinder.stack.emplace_back(detail::op_type::add, location, val); + } + else if (op ==jsoncons::jsonpatch::detail::jsonpatch_names::replace_name()) + { + Json val = jsonpointer::get(target,location,local_ec); + if (local_ec) + { + ec = jsonpatch_errc::replace_failed; + unwinder.state =jsoncons::jsonpatch::detail::state_type::abort; + return; + } + auto it_value = operation.find(detail::jsonpatch_names::value_name()); + if (it_value == operation.object_range().end()) + { + ec = jsonpatch_errc::invalid_patch; + unwinder.state =jsoncons::jsonpatch::detail::state_type::abort; + return; + } + jsonpointer::replace(target, location, it_value->value(), local_ec); + if (local_ec) + { + ec = jsonpatch_errc::replace_failed; + unwinder.state =jsoncons::jsonpatch::detail::state_type::abort; + return; + } + unwinder.stack.emplace_back(detail::op_type::replace,location,val); + } + else if (op ==jsoncons::jsonpatch::detail::jsonpatch_names::move_name()) + { + auto it_from = operation.find(detail::jsonpatch_names::from_name()); + if (it_from == operation.object_range().end()) + { + ec = jsonpatch_errc::invalid_patch; + unwinder.state =jsoncons::jsonpatch::detail::state_type::abort; + return; + } + string_type from = it_from->value().as_string(); + auto from_pointer = json_pointer_type::parse(from, local_ec); + if (local_ec) + { + ec = jsonpatch_errc::move_failed; + unwinder.state = jsoncons::jsonpatch::detail::state_type::abort; + return; + } + + Json val = jsonpointer::get(target, from_pointer, local_ec); + if (local_ec) + { + ec = jsonpatch_errc::move_failed; + unwinder.state =jsoncons::jsonpatch::detail::state_type::abort; + return; + } + jsonpointer::remove(target, from_pointer, local_ec); + if (local_ec) + { + ec = jsonpatch_errc::move_failed; + unwinder.state =jsoncons::jsonpatch::detail::state_type::abort; + return; + } + unwinder.stack.emplace_back(detail::op_type::add, from_pointer, val); + // add + std::error_code insert_ec; + auto npath = jsonpatch::detail::definite_path(target,location); + jsonpointer::add_if_absent(target,npath,val,insert_ec); // try insert without replace + if (insert_ec) // try a replace + { + std::error_code select_ec; + Json orig_val = jsonpointer::get(target,npath,select_ec); + if (select_ec) // shouldn't happen + { + ec = jsonpatch_errc::copy_failed; + unwinder.state =jsoncons::jsonpatch::detail::state_type::abort; + return; + } + std::error_code replace_ec; + jsonpointer::replace(target, npath, val, replace_ec); + if (replace_ec) + { + ec = jsonpatch_errc::copy_failed; + unwinder.state =jsoncons::jsonpatch::detail::state_type::abort; + return; + } + unwinder.stack.emplace_back(jsoncons::jsonpatch::detail::op_type::replace,npath,orig_val); + } + else + { + unwinder.stack.emplace_back(detail::op_type::remove,npath,Json::null()); + } + } + else if (op ==jsoncons::jsonpatch::detail::jsonpatch_names::copy_name()) + { + auto it_from = operation.find(detail::jsonpatch_names::from_name()); + if (it_from == operation.object_range().end()) + { + ec = jsonpatch_errc::invalid_patch; + unwinder.state =jsoncons::jsonpatch::detail::state_type::abort; + return; + } + string_type from = it_from->value().as_string(); + Json val = jsonpointer::get(target,from,local_ec); + if (local_ec) + { + ec = jsonpatch_errc::copy_failed; + unwinder.state =jsoncons::jsonpatch::detail::state_type::abort; + return; + } + // add + auto npath = jsonpatch::detail::definite_path(target,location); + std::error_code insert_ec; + jsonpointer::add_if_absent(target,npath,val,insert_ec); // try insert without replace + if (insert_ec) // Failed, try a replace + { + std::error_code select_ec; + Json orig_val = jsonpointer::get(target,npath, select_ec); + if (select_ec) // shouldn't happen + { + ec = jsonpatch_errc::copy_failed; + unwinder.state =jsoncons::jsonpatch::detail::state_type::abort; + return; + } + std::error_code replace_ec; + jsonpointer::replace(target, npath, val,replace_ec); + if (replace_ec) + { + ec = jsonpatch_errc::copy_failed; + unwinder.state =jsoncons::jsonpatch::detail::state_type::abort; + return; + } + unwinder.stack.emplace_back(jsoncons::jsonpatch::detail::op_type::replace,npath,orig_val); + } + else + { + unwinder.stack.emplace_back(detail::op_type::remove,npath,Json::null()); + } + } + } + if (unwinder.state ==jsoncons::jsonpatch::detail::state_type::begin) + { + unwinder.state =jsoncons::jsonpatch::detail::state_type::commit; + } +} + +template +Json from_diff(const Json& source, const Json& target) +{ + std::basic_string path; + return jsoncons::jsonpatch::detail::from_diff(source, target, path); +} + +template +void apply_patch(Json& target, const Json& patch) +{ + std::error_code ec; + apply_patch(target, patch, ec); + if (ec) + { + JSONCONS_THROW(jsonpatch_error(ec)); + } +} + +}} + +#endif diff --git a/include/jsoncons_ext/jsonpatch/jsonpatch_error.hpp b/include/jsoncons_ext/jsonpatch/jsonpatch_error.hpp new file mode 100644 index 0000000..33f8007 --- /dev/null +++ b/include/jsoncons_ext/jsonpatch/jsonpatch_error.hpp @@ -0,0 +1,121 @@ +/// Copyright 2017 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSONPATCH_JSONPATCH_ERROR_HPP +#define JSONCONS_JSONPATCH_JSONPATCH_ERROR_HPP + +#include +#include + +namespace jsoncons { namespace jsonpatch { + + enum class jsonpatch_errc + { + success = 0, + invalid_patch = 1, + test_failed, + add_failed, + remove_failed, + replace_failed, + move_failed, + copy_failed + + }; + + class jsonpatch_error_category_impl + : public std::error_category + { + public: + const char* name() const noexcept override + { + return "jsoncons/jsonpatch"; + } + std::string message(int ev) const override + { + switch (static_cast(ev)) + { + case jsonpatch_errc::invalid_patch: + return "Invalid JSON Patch document"; + case jsonpatch_errc::test_failed: + return "JSON Patch test operation failed"; + case jsonpatch_errc::add_failed: + return "JSON Patch add operation failed"; + case jsonpatch_errc::remove_failed: + return "JSON Patch remove operation failed"; + case jsonpatch_errc::replace_failed: + return "JSON Patch replace operation failed"; + case jsonpatch_errc::move_failed: + return "JSON Patch move operation failed"; + case jsonpatch_errc::copy_failed: + return "JSON Patch copy operation failed"; + default: + return "Unknown JSON Patch error"; + } + } + }; + + inline + const std::error_category& jsonpatch_error_category() + { + static jsonpatch_error_category_impl instance; + return instance; + } + + inline + std::error_code make_error_code(jsonpatch_errc result) + { + return std::error_code(static_cast(result),jsonpatch_error_category()); + } + +} // jsonpatch +} // jsoncons + +namespace std { + template<> + struct is_error_code_enum : public true_type + { + }; +} + +namespace jsoncons { namespace jsonpatch { + +// allow to disable exceptions +#if !defined(JSONCONS_NO_EXCEPTIONS) + #define JSONCONS_THROW(exception) throw exception + #define JSONCONS_RETHROW throw + #define JSONCONS_TRY try + #define JSONCONS_CATCH(exception) catch(exception) +#else + #define JSONCONS_THROW(exception) std::terminate() + #define JSONCONS_RETHROW std::terminate() + #define JSONCONS_TRY if (true) + #define JSONCONS_CATCH(exception) if (false) +#endif + + class jsonpatch_error : public std::system_error, public virtual json_exception + { + public: + jsonpatch_error(const std::error_code& ec) + : std::system_error(ec) + { + } + + jsonpatch_error(const jsonpatch_error& other) = default; + + jsonpatch_error(jsonpatch_error&& other) = default; + + jsonpatch_error& operator=(const jsonpatch_error& e) = default; + jsonpatch_error& operator=(jsonpatch_error&& e) = default; + + const char* what() const noexcept override + { + return std::system_error::what(); + } + }; +} // jsonpatch +} // jsoncons + +#endif diff --git a/include/jsoncons_ext/jsonpath/expression.hpp b/include/jsoncons_ext/jsonpath/expression.hpp new file mode 100644 index 0000000..f655f2d --- /dev/null +++ b/include/jsoncons_ext/jsonpath/expression.hpp @@ -0,0 +1,3329 @@ +// Copyright 2021 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSONPATH_EXPRESSION_HPP +#define JSONCONS_JSONPATH_EXPRESSION_HPP + +#include // std::basic_string +#include // std::vector +#include // std::unordered_map +#include // std::unordered_set +#include // std::numeric_limits +#include // std::set +#include // std::move +#if defined(JSONCONS_HAS_STD_REGEX) +#include +#endif +#include +#include +#include + +namespace jsoncons { +namespace jsonpath { + + struct reference_arg_t + { + explicit reference_arg_t() = default; + }; + constexpr reference_arg_t reference_arg{}; + + struct const_reference_arg_t + { + explicit const_reference_arg_t() = default; + }; + constexpr const_reference_arg_t const_reference_arg{}; + + struct literal_arg_t + { + explicit literal_arg_t() = default; + }; + constexpr literal_arg_t literal_arg{}; + + struct end_of_expression_arg_t + { + explicit end_of_expression_arg_t() = default; + }; + constexpr end_of_expression_arg_t end_of_expression_arg{}; + + struct separator_arg_t + { + explicit separator_arg_t() = default; + }; + constexpr separator_arg_t separator_arg{}; + + struct lparen_arg_t + { + explicit lparen_arg_t() = default; + }; + constexpr lparen_arg_t lparen_arg{}; + + struct rparen_arg_t + { + explicit rparen_arg_t() = default; + }; + constexpr rparen_arg_t rparen_arg{}; + + struct begin_union_arg_t + { + explicit begin_union_arg_t() = default; + }; + constexpr begin_union_arg_t begin_union_arg{}; + + struct end_union_arg_t + { + explicit end_union_arg_t() = default; + }; + constexpr end_union_arg_t end_union_arg{}; + + struct begin_filter_arg_t + { + explicit begin_filter_arg_t() = default; + }; + constexpr begin_filter_arg_t begin_filter_arg{}; + + struct end_filter_arg_t + { + explicit end_filter_arg_t() = default; + }; + constexpr end_filter_arg_t end_filter_arg{}; + + struct begin_expression_arg_t + { + explicit begin_expression_arg_t() = default; + }; + constexpr begin_expression_arg_t begin_expression_arg{}; + + struct end_index_expression_arg_t + { + explicit end_index_expression_arg_t() = default; + }; + constexpr end_index_expression_arg_t end_index_expression_arg{}; + + struct end_argument_expression_arg_t + { + explicit end_argument_expression_arg_t() = default; + }; + constexpr end_argument_expression_arg_t end_argument_expression_arg{}; + + struct current_node_arg_t + { + explicit current_node_arg_t() = default; + }; + constexpr current_node_arg_t current_node_arg{}; + + struct root_node_arg_t + { + explicit root_node_arg_t() = default; + }; + constexpr root_node_arg_t root_node_arg{}; + + struct end_function_arg_t + { + explicit end_function_arg_t() = default; + }; + constexpr end_function_arg_t end_function_arg{}; + + struct argument_arg_t + { + explicit argument_arg_t() = default; + }; + constexpr argument_arg_t argument_arg{}; + + enum class result_options {value=0, nodups=1, sort=2, path=4}; + + using result_type = result_options; + + inline result_options operator~(result_options a) + { + return static_cast(~static_cast(a)); + } + + inline result_options operator&(result_options a, result_options b) + { + return static_cast(static_cast(a) & static_cast(b)); + } + + inline result_options operator^(result_options a, result_options b) + { + return static_cast(static_cast(a) ^ static_cast(b)); + } + + inline result_options operator|(result_options a, result_options b) + { + return static_cast(static_cast(a) | static_cast(b)); + } + + inline result_options operator&=(result_options& a, result_options b) + { + a = a & b; + return a; + } + + inline result_options operator^=(result_options& a, result_options b) + { + a = a ^ b; + return a; + } + + inline result_options operator|=(result_options& a, result_options b) + { + a = a | b; + return a; + } + + template + class parameter; + + template + class value_or_pointer + { + public: + friend class parameter; + using value_type = Json; + using reference = JsonReference; + using pointer = typename std::conditional::type>::value,typename Json::const_pointer,typename Json::pointer>::type; + private: + bool is_value_; + union + { + value_type val_; + pointer ptr_; + }; + public: + value_or_pointer(value_type&& val) + : is_value_(true), val_(std::move(val)) + { + } + + value_or_pointer(pointer ptr) + : is_value_(false), ptr_(std::move(ptr)) + { + } + + value_or_pointer(value_or_pointer&& other) noexcept + : is_value_(other.is_value_) + { + if (is_value_) + { + new(&val_)value_type(std::move(other.val_)); + } + else + { + ptr_ = other.ptr_; + } + } + + ~value_or_pointer() noexcept + { + if (is_value_) + { + val_.~value_type(); + } + } + + value_or_pointer& operator=(value_or_pointer&& other) noexcept + { + if (is_value_) + { + val_.~value_type(); + } + is_value_ = other.is_value_; + + if (is_value_) + { + new(&val_)value_type(std::move(other.val_)); + } + else + { + ptr_ = other.ptr_; + } + return *this; + } + + reference value() + { + return is_value_ ? val_ : *ptr_; + } + + pointer ptr() + { + return is_value_ ? &val_ : ptr_; + } + }; + + template + class parameter + { + using value_type = Json; + using reference = const Json&; + using pointer = const Json*; + private: + value_or_pointer data_; + public: + template + parameter(value_or_pointer&& data) noexcept + : data_(nullptr) + { + data_.is_value_ = data.is_value_; + if (data.is_value_) + { + data_.val_ = std::move(data.val_); + } + else + { + data_.ptr_ = data.ptr_; + } + } + + parameter(parameter&& other) noexcept = default; + + parameter& operator=(parameter&& other) noexcept = default; + + const Json& value() const + { + return data_.is_value_ ? data_.val_ : *data_.ptr_; + } + }; + + template + class custom_function + { + public: + using value_type = Json; + using char_type = typename Json::char_type; + using parameter_type = parameter; + using function_type = std::function, std::error_code& ec)>; + using string_type = std::basic_string; + + string_type function_name_; + optional arity_; + function_type f_; + + custom_function(const string_type& function_name, + const optional& arity, + const function_type& f) + : function_name_(function_name), + arity_(arity), + f_(f) + { + } + + custom_function(string_type&& function_name, + optional&& arity, + function_type&& f) + : function_name_(std::move(function_name)), + arity_(std::move(arity)), + f_(std::move(f)) + { + } + + custom_function(const custom_function&) = default; + + custom_function(custom_function&&) = default; + + const string_type& name() const + { + return function_name_; + } + + optional arity() const + { + return arity_; + } + + const function_type& function() const + { + return f_; + } + }; + + template + class custom_functions + { + using char_type = typename Json::char_type; + using string_type = std::basic_string; + using value_type = Json; + using parameter_type = parameter; + using function_type = std::function, std::error_code& ec)>; + using const_iterator = typename std::vector>::const_iterator; + + std::vector> functions_; + public: + void register_function(const string_type& name, + jsoncons::optional arity, + const function_type& f) + { + functions_.emplace_back(name, arity, f); + } + + const_iterator begin() const + { + return functions_.begin(); + } + + const_iterator end() const + { + return functions_.end(); + } + }; + +namespace detail { + + template + class dynamic_resources; + + template + struct unary_operator + { + std::size_t precedence_level_; + bool is_right_associative_; + + unary_operator(std::size_t precedence_level, + bool is_right_associative) + : precedence_level_(precedence_level), + is_right_associative_(is_right_associative) + { + } + + virtual ~unary_operator() = default; + + std::size_t precedence_level() const + { + return precedence_level_; + } + bool is_right_associative() const + { + return is_right_associative_; + } + + virtual Json evaluate(JsonReference, + std::error_code&) const = 0; + }; + + template + bool is_false(const Json& val) + { + return ((val.is_array() && val.empty()) || + (val.is_object() && val.empty()) || + (val.is_string() && val.as_string_view().empty()) || + (val.is_bool() && !val.as_bool()) || + val.is_null()); + } + + template + bool is_true(const Json& val) + { + return !is_false(val); + } + + template + class unary_not_operator final : public unary_operator + { + public: + unary_not_operator() + : unary_operator(1, true) + {} + + Json evaluate(JsonReference val, + std::error_code&) const override + { + return is_false(val) ? Json(true) : Json(false); + } + }; + + template + class unary_minus_operator final : public unary_operator + { + public: + unary_minus_operator() + : unary_operator(1, true) + {} + + Json evaluate(JsonReference val, + std::error_code&) const override + { + if (val.is_int64()) + { + return Json(-val.template as()); + } + else if (val.is_double()) + { + return Json(-val.as_double()); + } + else + { + return Json::null(); + } + } + }; + + template + class regex_operator final : public unary_operator + { + using char_type = typename Json::char_type; + using string_type = std::basic_string; + std::basic_regex pattern_; + public: + regex_operator(std::basic_regex&& pattern) + : unary_operator(2, true), + pattern_(std::move(pattern)) + { + } + + regex_operator(regex_operator&&) = default; + regex_operator& operator=(regex_operator&&) = default; + + Json evaluate(JsonReference val, + std::error_code&) const override + { + if (!val.is_string()) + { + return Json::null(); + } + return std::regex_search(val.as_string(), pattern_) ? Json(true) : Json(false); + } + }; + + template + struct binary_operator + { + std::size_t precedence_level_; + bool is_right_associative_; + + binary_operator(std::size_t precedence_level, + bool is_right_associative = false) + : precedence_level_(precedence_level), + is_right_associative_(is_right_associative) + { + } + + std::size_t precedence_level() const + { + return precedence_level_; + } + bool is_right_associative() const + { + return is_right_associative_; + } + + virtual Json evaluate(JsonReference, + JsonReference, + + std::error_code&) const = 0; + + virtual std::string to_string(int = 0) const + { + return "binary operator"; + } + + protected: + ~binary_operator() = default; + }; + + // Implementations + + template + class or_operator final : public binary_operator + { + public: + or_operator() + : binary_operator(9) + { + } + + Json evaluate(JsonReference lhs, JsonReference rhs, std::error_code&) const override + { + if (lhs.is_null() && rhs.is_null()) + { + return Json::null(); + } + if (!is_false(lhs)) + { + return lhs; + } + else + { + return rhs; + } + } + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + //s.append("\n"); + s.append(level*2, ' '); + } + s.append("or operator"); + return s; + } + }; + + template + class and_operator final : public binary_operator + { + public: + and_operator() + : binary_operator(8) + { + } + + Json evaluate(JsonReference lhs, JsonReference rhs, std::error_code&) const override + { + if (is_true(lhs)) + { + return rhs; + } + else + { + return lhs; + } + } + + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("and operator"); + return s; + } + }; + + template + class eq_operator final : public binary_operator + { + public: + eq_operator() + : binary_operator(6) + { + } + + Json evaluate(JsonReference lhs, JsonReference rhs, std::error_code&) const override + { + return lhs == rhs ? Json(true) : Json(false); + } + + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("equal operator"); + return s; + } + }; + + template + class ne_operator final : public binary_operator + { + public: + ne_operator() + : binary_operator(6) + { + } + + Json evaluate(JsonReference lhs, JsonReference rhs, std::error_code&) const override + { + return lhs != rhs ? Json(true) : Json(false); + } + + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("not equal operator"); + return s; + } + }; + + template + class lt_operator final : public binary_operator + { + public: + lt_operator() + : binary_operator(5) + { + } + + Json evaluate(JsonReference lhs, JsonReference rhs, std::error_code&) const override + { + if (lhs.is_number() && rhs.is_number()) + { + return lhs < rhs ? Json(true) : Json(false); + } + else if (lhs.is_string() && rhs.is_string()) + { + return lhs < rhs ? Json(true) : Json(false); + } + return Json::null(); + } + + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("less than operator"); + return s; + } + }; + + template + class lte_operator final : public binary_operator + { + public: + lte_operator() + : binary_operator(5) + { + } + + Json evaluate(JsonReference lhs, JsonReference rhs, std::error_code&) const override + { + if (lhs.is_number() && rhs.is_number()) + { + return lhs <= rhs ? Json(true) : Json(false); + } + else if (lhs.is_string() && rhs.is_string()) + { + return lhs <= rhs ? Json(true) : Json(false); + } + return Json::null(); + } + + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("less than or equal operator"); + return s; + } + }; + + template + class gt_operator final : public binary_operator + { + public: + gt_operator() + : binary_operator(5) + { + } + + Json evaluate(JsonReference lhs, JsonReference rhs, std::error_code&) const override + { + //std::cout << "operator> lhs: " << lhs << ", rhs: " << rhs << "\n"; + + if (lhs.is_number() && rhs.is_number()) + { + return lhs > rhs ? Json(true) : Json(false); + } + else if (lhs.is_string() && rhs.is_string()) + { + return lhs > rhs ? Json(true) : Json(false); + } + return Json::null(); + } + + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("greater than operator"); + return s; + } + }; + + template + class gte_operator final : public binary_operator + { + public: + gte_operator() + : binary_operator(5) + { + } + + Json evaluate(JsonReference lhs, JsonReference rhs, std::error_code&) const override + { + if (lhs.is_number() && rhs.is_number()) + { + return lhs >= rhs ? Json(true) : Json(false); + } + else if (lhs.is_string() && rhs.is_string()) + { + return lhs >= rhs ? Json(true) : Json(false); + } + return Json::null(); + } + + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("greater than or equal operator"); + return s; + } + }; + + template + class plus_operator final : public binary_operator + { + public: + plus_operator() + : binary_operator(4) + { + } + + Json evaluate(JsonReference lhs, JsonReference rhs, std::error_code&) const override + { + if (!(lhs.is_number() && rhs.is_number())) + { + return Json::null(); + } + else if (lhs.is_int64() && rhs.is_int64()) + { + return Json(((lhs.template as() + rhs.template as()))); + } + else if (lhs.is_uint64() && rhs.is_uint64()) + { + return Json((lhs.template as() + rhs.template as())); + } + else + { + return Json((lhs.as_double() + rhs.as_double())); + } + } + + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("plus operator"); + return s; + } + }; + + template + class minus_operator final : public binary_operator + { + public: + minus_operator() + : binary_operator(4) + { + } + + Json evaluate(JsonReference lhs, JsonReference rhs, std::error_code&) const override + { + if (!(lhs.is_number() && rhs.is_number())) + { + return Json::null(); + } + else if (lhs.is_int64() && rhs.is_int64()) + { + return Json(((lhs.template as() - rhs.template as()))); + } + else if (lhs.is_uint64() && rhs.is_uint64()) + { + return Json((lhs.template as() - rhs.template as())); + } + else + { + return Json((lhs.as_double() - rhs.as_double())); + } + } + + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("minus operator"); + return s; + } + }; + + template + class mult_operator final : public binary_operator + { + public: + mult_operator() + : binary_operator(3) + { + } + + Json evaluate(JsonReference lhs, JsonReference rhs, std::error_code&) const override + { + if (!(lhs.is_number() && rhs.is_number())) + { + return Json::null(); + } + else if (lhs.is_int64() && rhs.is_int64()) + { + return Json(((lhs.template as() * rhs.template as()))); + } + else if (lhs.is_uint64() && rhs.is_uint64()) + { + return Json((lhs.template as() * rhs.template as())); + } + else + { + return Json((lhs.as_double() * rhs.as_double())); + } + } + + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("multiply operator"); + return s; + } + }; + + template + class div_operator final : public binary_operator + { + public: + div_operator() + : binary_operator(3) + { + } + + Json evaluate(JsonReference lhs, JsonReference rhs, std::error_code&) const override + { + //std::cout << "operator/ lhs: " << lhs << ", rhs: " << rhs << "\n"; + + if (!(lhs.is_number() && rhs.is_number())) + { + return Json::null(); + } + else if (lhs.is_int64() && rhs.is_int64()) + { + return Json(((lhs.template as() / rhs.template as()))); + } + else if (lhs.is_uint64() && rhs.is_uint64()) + { + return Json((lhs.template as() / rhs.template as())); + } + else + { + return Json((lhs.as_double() / rhs.as_double())); + } + } + + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("divide operator"); + return s; + } + }; + + template + class modulus_operator final : public binary_operator + { + public: + modulus_operator() + : binary_operator(3) + { + } + + Json evaluate(JsonReference lhs, JsonReference rhs, std::error_code&) const override + { + //std::cout << "operator/ lhs: " << lhs << ", rhs: " << rhs << "\n"; + + if (!(lhs.is_number() && rhs.is_number())) + { + return Json::null(); + } + else if (lhs.is_int64() && rhs.is_int64()) + { + return Json(((lhs.template as() % rhs.template as()))); + } + else if (lhs.is_uint64() && rhs.is_uint64()) + { + return Json((lhs.template as() % rhs.template as())); + } + else + { + return Json(fmod(lhs.as_double(), rhs.as_double())); + } + } + + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("modulus operator"); + return s; + } + }; + + // function_base + template + class function_base + { + jsoncons::optional arg_count_; + public: + using value_type = Json; + using parameter_type = parameter; + + function_base(jsoncons::optional arg_count) + : arg_count_(arg_count) + { + } + + virtual ~function_base() noexcept = default; + + jsoncons::optional arity() const + { + return arg_count_; + } + + virtual value_type evaluate(const std::vector& args, + std::error_code& ec) const = 0; + + virtual std::string to_string(int level = 0) const + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("function"); + return s; + } + }; + + template + class decorator_function : public function_base + { + public: + using value_type = Json; + using parameter_type = parameter; + using string_view_type = typename Json::string_view_type; + using function_type = std::function, std::error_code& ec)>; + private: + function_type f_; + public: + decorator_function(jsoncons::optional arity, + const function_type& f) + : function_base(arity), f_(f) + { + } + + value_type evaluate(const std::vector& args, + std::error_code& ec) const override + { + return f_(args, ec); + } + }; + + template + class contains_function : public function_base + { + public: + using value_type = Json; + using parameter_type = parameter; + using string_view_type = typename Json::string_view_type; + + contains_function() + : function_base(2) + { + } + + value_type evaluate(const std::vector& args, + std::error_code& ec) const override + { + if (args.size() != *this->arity()) + { + ec = jsonpath_errc::invalid_arity; + return value_type::null(); + } + + auto arg0= args[0].value(); + auto arg1= args[1].value(); + + switch (arg0.type()) + { + case json_type::array_value: + for (auto& j : arg0.array_range()) + { + if (j == arg1) + { + return value_type(true); + } + } + return value_type(false); + case json_type::string_value: + { + if (!arg1.is_string()) + { + ec = jsonpath_errc::invalid_type; + return value_type::null(); + } + auto sv0 = arg0.template as(); + auto sv1 = arg1.template as(); + return sv0.find(sv1) != string_view_type::npos ? value_type(true) : value_type(false); + } + default: + { + ec = jsonpath_errc::invalid_type; + return value_type::null(); + } + } + } + + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("contains function"); + return s; + } + }; + + template + class ends_with_function : public function_base + { + public: + using value_type = Json; + using parameter_type = parameter; + using string_view_type = typename Json::string_view_type; + + ends_with_function() + : function_base(2) + { + } + + value_type evaluate(const std::vector& args, + std::error_code& ec) const override + { + if (args.size() != *this->arity()) + { + ec = jsonpath_errc::invalid_arity; + return value_type::null(); + } + + auto arg0= args[0].value(); + if (!arg0.is_string()) + { + ec = jsonpath_errc::invalid_type; + return value_type::null(); + } + + auto arg1= args[1].value(); + if (!arg1.is_string()) + { + ec = jsonpath_errc::invalid_type; + return value_type::null(); + } + + auto sv0 = arg0.template as(); + auto sv1 = arg1.template as(); + + if (sv1.length() <= sv0.length() && sv1 == sv0.substr(sv0.length() - sv1.length())) + { + return value_type(true); + } + else + { + return value_type(false); + } + } + + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("ends_with function"); + return s; + } + }; + + template + class starts_with_function : public function_base + { + public: + using value_type = Json; + using parameter_type = parameter; + using string_view_type = typename Json::string_view_type; + + starts_with_function() + : function_base(2) + { + } + + value_type evaluate(const std::vector& args, + std::error_code& ec) const override + { + if (args.size() != *this->arity()) + { + ec = jsonpath_errc::invalid_arity; + return value_type::null(); + } + + auto arg0= args[0].value(); + if (!arg0.is_string()) + { + ec = jsonpath_errc::invalid_type; + return value_type::null(); + } + + auto arg1= args[1].value(); + if (!arg1.is_string()) + { + ec = jsonpath_errc::invalid_type; + return value_type::null(); + } + + auto sv0 = arg0.template as(); + auto sv1 = arg1.template as(); + + if (sv1.length() <= sv0.length() && sv1 == sv0.substr(0, sv1.length())) + { + return value_type(true); + } + else + { + return value_type(false); + } + } + + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("starts_with function"); + return s; + } + }; + + template + class sum_function : public function_base + { + public: + using value_type = Json; + using parameter_type = parameter; + + sum_function() + : function_base(1) + { + } + + value_type evaluate(const std::vector& args, + std::error_code& ec) const override + { + if (args.size() != *this->arity()) + { + ec = jsonpath_errc::invalid_arity; + return value_type::null(); + } + + auto arg0= args[0].value(); + if (!arg0.is_array()) + { + //std::cout << "arg: " << arg0 << "\n"; + ec = jsonpath_errc::invalid_type; + return value_type::null(); + } + //std::cout << "sum function arg: " << arg0 << "\n"; + + double sum = 0; + for (auto& j : arg0.array_range()) + { + if (!j.is_number()) + { + ec = jsonpath_errc::invalid_type; + return value_type::null(); + } + sum += j.template as(); + } + + return value_type(sum); + } + + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("sum function"); + return s; + } + }; + +#if defined(JSONCONS_HAS_STD_REGEX) + + template + class tokenize_function : public function_base + { + public: + using value_type = Json; + using parameter_type = parameter; + using char_type = typename Json::char_type; + using string_type = std::basic_string; + + tokenize_function() + : function_base(2) + { + } + + value_type evaluate(const std::vector& args, + std::error_code& ec) const override + { + if (args.size() != *this->arity()) + { + ec = jsonpath_errc::invalid_arity; + return value_type::null(); + } + + if (!args[0].value().is_string() || !args[1].value().is_string()) + { + //std::cout << "arg: " << arg0 << "\n"; + ec = jsonpath_errc::invalid_type; + return value_type::null(); + } + auto arg0 = args[0].value().template as(); + auto arg1 = args[1].value().template as(); + + std::regex::flag_type options = std::regex_constants::ECMAScript; + std::basic_regex pieces_regex(arg1, options); + + std::regex_token_iterator rit ( arg0.begin(), arg0.end(), pieces_regex, -1); + std::regex_token_iterator rend; + + value_type j(json_array_arg); + while (rit != rend) + { + j.emplace_back(rit->str()); + ++rit; + } + return j; + } + + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("tokenize function"); + return s; + } + }; + +#endif // defined(JSONCONS_HAS_STD_REGEX) + + template + class ceil_function : public function_base + { + public: + using value_type = Json; + using parameter_type = parameter; + + ceil_function() + : function_base(1) + { + } + + value_type evaluate(const std::vector& args, + std::error_code& ec) const override + { + if (args.size() != *this->arity()) + { + ec = jsonpath_errc::invalid_arity; + return value_type::null(); + } + + auto arg0= args[0].value(); + switch (arg0.type()) + { + case json_type::uint64_value: + case json_type::int64_value: + { + return value_type(arg0.template as()); + } + case json_type::double_value: + { + return value_type(std::ceil(arg0.template as())); + } + default: + ec = jsonpath_errc::invalid_type; + return value_type::null(); + } + } + + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("ceil function"); + return s; + } + }; + + template + class floor_function : public function_base + { + public: + using value_type = Json; + using parameter_type = parameter; + + floor_function() + : function_base(1) + { + } + + value_type evaluate(const std::vector& args, + std::error_code& ec) const override + { + if (args.size() != *this->arity()) + { + ec = jsonpath_errc::invalid_arity; + return value_type::null(); + } + + auto arg0= args[0].value(); + switch (arg0.type()) + { + case json_type::uint64_value: + case json_type::int64_value: + { + return value_type(arg0.template as()); + } + case json_type::double_value: + { + return value_type(std::floor(arg0.template as())); + } + default: + ec = jsonpath_errc::invalid_type; + return value_type::null(); + } + } + + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("floor function"); + return s; + } + }; + + template + class to_number_function : public function_base + { + public: + using value_type = Json; + using parameter_type = parameter; + + to_number_function() + : function_base(1) + { + } + + value_type evaluate(const std::vector& args, + std::error_code& ec) const override + { + if (args.size() != *this->arity()) + { + ec = jsonpath_errc::invalid_arity; + return value_type::null(); + } + + auto arg0= args[0].value(); + switch (arg0.type()) + { + case json_type::int64_value: + case json_type::uint64_value: + case json_type::double_value: + return arg0; + case json_type::string_value: + { + auto sv = arg0.as_string_view(); + uint64_t un{0}; + auto result1 = jsoncons::detail::to_integer(sv.data(), sv.length(), un); + if (result1) + { + return value_type(un); + } + int64_t sn{0}; + auto result2 = jsoncons::detail::to_integer(sv.data(), sv.length(), sn); + if (result2) + { + return value_type(sn); + } + jsoncons::detail::chars_to to_double; + try + { + auto s = arg0.as_string(); + double d = to_double(s.c_str(), s.length()); + return value_type(d); + } + catch (const std::exception&) + { + return value_type::null(); + } + } + default: + ec = jsonpath_errc::invalid_type; + return value_type::null(); + } + } + + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("to_number function"); + return s; + } + }; + + template + class prod_function : public function_base + { + public: + using value_type = Json; + using parameter_type = parameter; + + prod_function() + : function_base(1) + { + } + + value_type evaluate(const std::vector& args, + std::error_code& ec) const override + { + if (args.size() != *this->arity()) + { + ec = jsonpath_errc::invalid_arity; + return value_type::null(); + } + + auto arg0= args[0].value(); + if (!arg0.is_array() || arg0.empty()) + { + //std::cout << "arg: " << arg0 << "\n"; + ec = jsonpath_errc::invalid_type; + return value_type::null(); + } + double prod = 1; + for (auto& j : arg0.array_range()) + { + if (!j.is_number()) + { + ec = jsonpath_errc::invalid_type; + return value_type::null(); + } + prod *= j.template as(); + } + + return value_type(prod); + } + + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("prod function"); + return s; + } + }; + + template + class avg_function : public function_base + { + public: + using value_type = Json; + using parameter_type = parameter; + + avg_function() + : function_base(1) + { + } + + value_type evaluate(const std::vector& args, + std::error_code& ec) const override + { + if (args.size() != *this->arity()) + { + ec = jsonpath_errc::invalid_arity; + return value_type::null(); + } + + auto arg0= args[0].value(); + if (!arg0.is_array()) + { + ec = jsonpath_errc::invalid_type; + return value_type::null(); + } + if (arg0.empty()) + { + return value_type::null(); + } + double sum = 0; + for (auto& j : arg0.array_range()) + { + if (!j.is_number()) + { + ec = jsonpath_errc::invalid_type; + return value_type::null(); + } + sum += j.template as(); + } + + return value_type(sum / static_cast(arg0.size())); + } + + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("to_string function"); + return s; + } + }; + + template + class min_function : public function_base + { + public: + using value_type = Json; + using parameter_type = parameter; + + min_function() + : function_base(1) + { + } + + value_type evaluate(const std::vector& args, + std::error_code& ec) const override + { + if (args.size() != *this->arity()) + { + ec = jsonpath_errc::invalid_arity; + return value_type::null(); + } + + auto arg0= args[0].value(); + if (!arg0.is_array()) + { + //std::cout << "arg: " << arg0 << "\n"; + ec = jsonpath_errc::invalid_type; + return value_type::null(); + } + if (arg0.empty()) + { + return value_type::null(); + } + bool is_number = arg0.at(0).is_number(); + bool is_string = arg0.at(0).is_string(); + if (!is_number && !is_string) + { + ec = jsonpath_errc::invalid_type; + return value_type::null(); + } + + std::size_t index = 0; + for (std::size_t i = 1; i < arg0.size(); ++i) + { + if (!(arg0.at(i).is_number() == is_number && arg0.at(i).is_string() == is_string)) + { + ec = jsonpath_errc::invalid_type; + return value_type::null(); + } + if (arg0.at(i) < arg0.at(index)) + { + index = i; + } + } + + return arg0.at(index); + } + + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("min function"); + return s; + } + }; + + template + class max_function : public function_base + { + public: + using value_type = Json; + using parameter_type = parameter; + + max_function() + : function_base(1) + { + } + + value_type evaluate(const std::vector& args, + std::error_code& ec) const override + { + if (args.size() != *this->arity()) + { + ec = jsonpath_errc::invalid_arity; + return value_type::null(); + } + + auto arg0= args[0].value(); + if (!arg0.is_array()) + { + //std::cout << "arg: " << arg0 << "\n"; + ec = jsonpath_errc::invalid_type; + return value_type::null(); + } + if (arg0.empty()) + { + return value_type::null(); + } + + bool is_number = arg0.at(0).is_number(); + bool is_string = arg0.at(0).is_string(); + if (!is_number && !is_string) + { + ec = jsonpath_errc::invalid_type; + return value_type::null(); + } + + std::size_t index = 0; + for (std::size_t i = 1; i < arg0.size(); ++i) + { + if (!(arg0.at(i).is_number() == is_number && arg0.at(i).is_string() == is_string)) + { + ec = jsonpath_errc::invalid_type; + return value_type::null(); + } + if (arg0.at(i) > arg0.at(index)) + { + index = i; + } + } + + return arg0.at(index); + } + + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("max function"); + return s; + } + }; + + template + class abs_function : public function_base + { + public: + using value_type = Json; + using parameter_type = parameter; + + abs_function() + : function_base(1) + { + } + + value_type evaluate(const std::vector& args, + std::error_code& ec) const override + { + if (args.size() != *this->arity()) + { + ec = jsonpath_errc::invalid_arity; + return value_type::null(); + } + + auto arg0= args[0].value(); + switch (arg0.type()) + { + case json_type::uint64_value: + return arg0; + case json_type::int64_value: + { + return arg0.template as() >= 0 ? arg0 : value_type(std::abs(arg0.template as())); + } + case json_type::double_value: + { + return arg0.template as() >= 0 ? arg0 : value_type(std::abs(arg0.template as())); + } + default: + { + ec = jsonpath_errc::invalid_type; + return value_type::null(); + } + } + } + + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("abs function"); + return s; + } + }; + + template + class length_function : public function_base + { + public: + using value_type = Json; + using string_view_type = typename Json::string_view_type; + using parameter_type = parameter; + + length_function() + : function_base(1) + { + } + + value_type evaluate(const std::vector& args, + std::error_code& ec) const override + { + if (args.size() != *this->arity()) + { + ec = jsonpath_errc::invalid_arity; + return value_type::null(); + } + + auto arg0= args[0].value(); + //std::cout << "length function arg: " << arg0 << "\n"; + + switch (arg0.type()) + { + case json_type::object_value: + case json_type::array_value: + return value_type(arg0.size()); + case json_type::string_value: + { + auto sv0 = arg0.template as(); + auto length = unicode_traits::count_codepoints(sv0.data(), sv0.size()); + return value_type(length); + } + default: + { + ec = jsonpath_errc::invalid_type; + return value_type::null(); + } + } + } + + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("length function"); + return s; + } + }; + + template + class keys_function : public function_base + { + public: + using value_type = Json; + using parameter_type = parameter; + using string_view_type = typename Json::string_view_type; + + keys_function() + : function_base(1) + { + } + + value_type evaluate(const std::vector& args, + std::error_code& ec) const override + { + if (args.size() != *this->arity()) + { + ec = jsonpath_errc::invalid_arity; + return value_type::null(); + } + + auto arg0= args[0].value(); + if (!arg0.is_object()) + { + ec = jsonpath_errc::invalid_type; + return value_type::null(); + } + + value_type result(json_array_arg); + result.reserve(args.size()); + + for (auto& item : arg0.object_range()) + { + result.emplace_back(item.key()); + } + return result; + } + + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("keys function"); + return s; + } + }; + + enum class jsonpath_token_kind + { + root_node, + current_node, + expression, + lparen, + rparen, + begin_union, + end_union, + begin_filter, + end_filter, + begin_expression, + end_index_expression, + end_argument_expression, + separator, + literal, + selector, + function, + end_function, + argument, + unary_operator, + binary_operator + }; + + inline + std::string to_string(jsonpath_token_kind kind) + { + switch (kind) + { + case jsonpath_token_kind::root_node: + return "root_node"; + case jsonpath_token_kind::current_node: + return "current_node"; + case jsonpath_token_kind::lparen: + return "lparen"; + case jsonpath_token_kind::rparen: + return "rparen"; + case jsonpath_token_kind::begin_union: + return "begin_union"; + case jsonpath_token_kind::end_union: + return "end_union"; + case jsonpath_token_kind::begin_filter: + return "begin_filter"; + case jsonpath_token_kind::end_filter: + return "end_filter"; + case jsonpath_token_kind::begin_expression: + return "begin_expression"; + case jsonpath_token_kind::end_index_expression: + return "end_index_expression"; + case jsonpath_token_kind::end_argument_expression: + return "end_argument_expression"; + case jsonpath_token_kind::separator: + return "separator"; + case jsonpath_token_kind::literal: + return "literal"; + case jsonpath_token_kind::selector: + return "selector"; + case jsonpath_token_kind::function: + return "function"; + case jsonpath_token_kind::end_function: + return "end_function"; + case jsonpath_token_kind::argument: + return "argument"; + case jsonpath_token_kind::unary_operator: + return "unary_operator"; + case jsonpath_token_kind::binary_operator: + return "binary_operator"; + default: + return ""; + } + } + + template + struct path_value_pair + { + using char_type = typename Json::char_type; + using string_type = std::basic_string>; + using value_type = Json; + using reference = JsonReference; + using value_pointer = typename std::conditional::type>::value,typename Json::const_pointer,typename Json::pointer>::type; + using json_location_node_type = json_location_node; + using json_location_type = json_location; + using path_pointer = const json_location_node_type*; + + json_location_type path_; + value_pointer value_ptr_; + + path_value_pair(const json_location_type& path, reference value) noexcept + : path_(path), value_ptr_(std::addressof(value)) + { + } + + path_value_pair(json_location_type&& path, value_pointer valp) noexcept + : path_(std::move(path)), value_ptr_(valp) + { + } + + path_value_pair(const path_value_pair&) = default; + path_value_pair(path_value_pair&& other) = default; + path_value_pair& operator=(const path_value_pair&) = default; + path_value_pair& operator=(path_value_pair&& other) = default; + + json_location_type path() const + { + return path_; + } + + reference value() + { + return *value_ptr_; + } + }; + + template + struct path_value_pair_less + { + bool operator()(const path_value_pair& lhs, + const path_value_pair& rhs) const noexcept + { + return lhs.path() < rhs.path(); + } + }; + + template + struct path_value_pair_equal + { + bool operator()(const path_value_pair& lhs, + const path_value_pair& rhs) const noexcept + { + return lhs.path() == rhs.path(); + } + }; + + template + struct path_component_value_pair + { + using char_type = typename Json::char_type; + using string_type = std::basic_string>; + using value_type = Json; + using reference = JsonReference; + using value_pointer = typename std::conditional::type>::value,typename Json::const_pointer,typename Json::pointer>::type; + using json_location_node_type = json_location_node; + using json_location_type = json_location; + using path_pointer = const json_location_node_type*; + private: + const json_location_node_type* last_ptr_; + value_pointer value_ptr_; + public: + path_component_value_pair(const json_location_node_type& last, reference value) noexcept + : last_ptr_(std::addressof(last)), value_ptr_(std::addressof(value)) + { + } + + const json_location_node_type& last() const + { + return *last_ptr_; + } + + reference value() const + { + return *value_ptr_; + } + }; + + template + class node_receiver + { + public: + using char_type = typename Json::char_type; + using reference = JsonReference; + using json_location_node_type = json_location_node; + + virtual ~node_receiver() noexcept = default; + + virtual void add(const json_location_node_type& path_tail, + reference value) = 0; + }; + + template + class path_value_receiver : public node_receiver + { + public: + using reference = JsonReference; + using char_type = typename Json::char_type; + using json_location_node_type = json_location_node; + using json_location_type = json_location; + using path_value_pair_type = path_value_pair; + + std::vector nodes; + + void add(const json_location_node_type& path_tail, + reference value) override + { + nodes.emplace_back(json_location_type(path_tail), std::addressof(value)); + } + }; + + template + class path_stem_value_receiver : public node_receiver + { + public: + using reference = JsonReference; + using char_type = typename Json::char_type; + using json_location_node_type = json_location_node; + using path_stem_value_pair_type = path_component_value_pair; + + std::vector nodes; + + void add(const json_location_node_type& path_tail, + reference value) override + { + nodes.emplace_back(path_tail, value); + } + }; + + template + class dynamic_resources + { + using reference = JsonReference; + using pointer = typename std::conditional::type>::value,typename Json::const_pointer,typename Json::pointer>::type; + using json_location_node_type = json_location_node; + using path_stem_value_pair_type = path_component_value_pair; + std::vector> temp_json_values_; + std::vector> temp_path_node_values_; + std::unordered_map cache_; + public: + bool is_cached(std::size_t id) const + { + return cache_.find(id) != cache_.end(); + } + void add_to_cache(std::size_t id, reference val) + { + cache_.emplace(id, std::addressof(val)); + } + reference retrieve_from_cache(std::size_t id) + { + return *cache_[id]; + } + + reference null_value() + { + static Json j{ null_type{} }; + return j; + } + + template + Json* create_json(Args&& ... args) + { + auto temp = jsoncons::make_unique(std::forward(args)...); + Json* ptr = temp.get(); + temp_json_values_.emplace_back(std::move(temp)); + return ptr; + } + + const json_location_node_type& root_path_node() const + { + static json_location_node_type root('$'); + return root; + } + + const json_location_node_type& current_path_node() const + { + static json_location_node_type root('@'); + return root; + } + + template + const json_location_node_type* create_path_node(Args&& ... args) + { + auto temp = jsoncons::make_unique(std::forward(args)...); + json_location_node_type* ptr = temp.get(); + temp_path_node_values_.emplace_back(std::move(temp)); + return ptr; + } + }; + + template + struct node_less + { + bool operator()(const path_value_pair& a, const path_value_pair& b) const + { + return *(a.ptr) < *(b.ptr); + } + }; + + template + class jsonpath_selector + { + bool is_path_; + std::size_t precedence_level_; + + public: + using char_type = typename Json::char_type; + using string_type = std::basic_string>; + using string_view_type = jsoncons::basic_string_view>; + using value_type = Json; + using reference = JsonReference; + using pointer = typename std::conditional::type>::value,typename Json::const_pointer,typename Json::pointer>::type; + using path_value_pair_type = path_value_pair; + using json_location_node_type = json_location_node; + using json_location_type = json_location; + using node_receiver_type = node_receiver; + using selector_type = jsonpath_selector; + + jsonpath_selector(bool is_path, + std::size_t precedence_level = 0) + : is_path_(is_path), + precedence_level_(precedence_level) + { + } + + virtual ~jsonpath_selector() noexcept = default; + + bool is_path() const + { + return is_path_; + } + + std::size_t precedence_level() const + { + return precedence_level_; + } + + bool is_right_associative() const + { + return true; + } + + virtual void select(dynamic_resources& resources, + reference root, + const json_location_node_type& path_tail, + reference val, + node_receiver_type& receiver, + result_options options) const = 0; + + virtual reference evaluate(dynamic_resources& resources, + reference root, + const json_location_node_type& path_tail, + reference current, + result_options options, + std::error_code& ec) const = 0; + + virtual void append_selector(jsonpath_selector*) + { + } + + virtual std::string to_string(int = 0) const + { + return std::string(); + } + }; + + template + struct static_resources + { + using char_type = typename Json::char_type; + using string_type = std::basic_string; + using value_type = Json; + using reference = JsonReference; + using function_base_type = function_base; + using selector_type = jsonpath_selector; + + std::vector> selectors_; + std::vector> temp_json_values_; + std::vector>> unary_operators_; + std::unordered_map> custom_functions_; + + static_resources() + { + } + + static_resources(const custom_functions& functions) + { + for (const auto& item : functions) + { + custom_functions_.emplace(item.name(), + jsoncons::make_unique>(item.arity(),item.function())); + } + } + + static_resources(const static_resources&) = default; + + static_resources(static_resources&& other) noexcept + : selectors_(std::move(other.selectors_)), + temp_json_values_(std::move(other.temp_json_values_)), + unary_operators_(std::move(other.unary_operators_)), + custom_functions_(std::move(other.custom_functions_)) + { + } + + const function_base_type* get_function(const string_type& name, std::error_code& ec) const + { + static abs_function abs_func; + static contains_function contains_func; + static starts_with_function starts_with_func; + static ends_with_function ends_with_func; + static ceil_function ceil_func; + static floor_function floor_func; + static to_number_function to_number_func; + static sum_function sum_func; + static prod_function prod_func; + static avg_function avg_func; + static min_function min_func; + static max_function max_func; + static length_function length_func; + static keys_function keys_func; +#if defined(JSONCONS_HAS_STD_REGEX) + static tokenize_function tokenize_func; +#endif + + static std::unordered_map functions = + { + {string_type{'a','b','s'}, &abs_func}, + {string_type{'c','o','n','t','a','i','n','s'}, &contains_func}, + {string_type{'s','t','a','r','t','s','_','w','i','t','h'}, &starts_with_func}, + {string_type{'e','n','d','s','_','w','i','t','h'}, &ends_with_func}, + {string_type{'c','e','i','l'}, &ceil_func}, + {string_type{'f','l','o','o','r'}, &floor_func}, + {string_type{'t','o','_','n','u','m','b','e','r'}, &to_number_func}, + {string_type{'s','u','m'}, &sum_func}, + {string_type{'p','r','o', 'd'}, &prod_func}, + {string_type{'a','v','g'}, &avg_func}, + {string_type{'m','i','n'}, &min_func}, + {string_type{'m','a','x'}, &max_func}, + {string_type{'l','e','n','g','t','h'}, &length_func}, + {string_type{'k','e','y','s'}, &keys_func}, +#if defined(JSONCONS_HAS_STD_REGEX) + {string_type{'t','o','k','e','n','i','z','e'}, &tokenize_func}, +#endif + {string_type{'c','o','u','n','t'}, &length_func} + }; + + auto it = functions.find(name); + if (it == functions.end()) + { + auto it2 = custom_functions_.find(name); + if (it2 == custom_functions_.end()) + { + ec = jsonpath_errc::unknown_function; + return nullptr; + } + else + { + return it2->second.get(); + } + } + else + { + return it->second; + } + } + + const unary_operator* get_unary_not() const + { + static unary_not_operator oper; + return &oper; + } + + const unary_operator* get_unary_minus() const + { + static unary_minus_operator oper; + return &oper; + } + + const unary_operator* get_regex_operator(std::basic_regex&& pattern) + { + unary_operators_.push_back(jsoncons::make_unique>(std::move(pattern))); + return unary_operators_.back().get(); + } + + const binary_operator* get_or_operator() const + { + static or_operator oper; + + return &oper; + } + + const binary_operator* get_and_operator() const + { + static and_operator oper; + + return &oper; + } + + const binary_operator* get_eq_operator() const + { + static eq_operator oper; + return &oper; + } + + const binary_operator* get_ne_operator() const + { + static ne_operator oper; + return &oper; + } + + const binary_operator* get_lt_operator() const + { + static lt_operator oper; + return &oper; + } + + const binary_operator* get_lte_operator() const + { + static lte_operator oper; + return &oper; + } + + const binary_operator* get_gt_operator() const + { + static gt_operator oper; + return &oper; + } + + const binary_operator* get_gte_operator() const + { + static gte_operator oper; + return &oper; + } + + const binary_operator* get_plus_operator() const + { + static plus_operator oper; + return &oper; + } + + const binary_operator* get_minus_operator() const + { + static minus_operator oper; + return &oper; + } + + const binary_operator* get_mult_operator() const + { + static mult_operator oper; + return &oper; + } + + const binary_operator* get_div_operator() const + { + static div_operator oper; + return &oper; + } + + const binary_operator* get_modulus_operator() const + { + static modulus_operator oper; + return &oper; + } + + template + selector_type* new_selector(T&& val) + { + selectors_.emplace_back(jsoncons::make_unique(std::forward(val))); + return selectors_.back().get(); + } + + template + Json* create_json(Args&& ... args) + { + auto temp = jsoncons::make_unique(std::forward(args)...); + Json* ptr = temp.get(); + temp_json_values_.emplace_back(std::move(temp)); + return ptr; + } + }; + + template + class expression_base + { + public: + using char_type = typename Json::char_type; + using string_type = std::basic_string>; + using string_view_type = jsoncons::basic_string_view>; + using value_type = Json; + using reference = JsonReference; + using pointer = typename std::conditional::type>::value,typename Json::const_pointer,typename Json::pointer>::type; + using path_value_pair_type = path_value_pair; + using json_location_node_type = json_location_node; + + virtual ~expression_base() noexcept = default; + + virtual value_type evaluate(dynamic_resources& resources, + reference root, + //const json_location_node_type& path, + reference val, + result_options options, + std::error_code& ec) const = 0; + + virtual std::string to_string(int level = 0) const = 0; + }; + + template + class token + { + public: + using selector_type = jsonpath_selector; + using expression_base_type = expression_base; + + jsonpath_token_kind token_kind_; + + union + { + selector_type* selector_; + std::unique_ptr expression_; + const unary_operator* unary_operator_; + const binary_operator* binary_operator_; + const function_base* function_; + Json value_; + }; + public: + + token(const unary_operator* expr) noexcept + : token_kind_(jsonpath_token_kind::unary_operator), + unary_operator_(expr) + { + } + + token(const binary_operator* expr) noexcept + : token_kind_(jsonpath_token_kind::binary_operator), + binary_operator_(expr) + { + } + + token(current_node_arg_t) noexcept + : token_kind_(jsonpath_token_kind::current_node) + { + } + + token(root_node_arg_t) noexcept + : token_kind_(jsonpath_token_kind::root_node) + { + } + + token(end_function_arg_t) noexcept + : token_kind_(jsonpath_token_kind::end_function) + { + } + + token(separator_arg_t) noexcept + : token_kind_(jsonpath_token_kind::separator) + { + } + + token(lparen_arg_t) noexcept + : token_kind_(jsonpath_token_kind::lparen) + { + } + + token(rparen_arg_t) noexcept + : token_kind_(jsonpath_token_kind::rparen) + { + } + + token(begin_union_arg_t) noexcept + : token_kind_(jsonpath_token_kind::begin_union) + { + } + + token(end_union_arg_t) noexcept + : token_kind_(jsonpath_token_kind::end_union) + { + } + + token(begin_filter_arg_t) noexcept + : token_kind_(jsonpath_token_kind::begin_filter) + { + } + + token(end_filter_arg_t) noexcept + : token_kind_(jsonpath_token_kind::end_filter) + { + } + + token(begin_expression_arg_t) noexcept + : token_kind_(jsonpath_token_kind::begin_expression) + { + } + + token(end_index_expression_arg_t) noexcept + : token_kind_(jsonpath_token_kind::end_index_expression) + { + } + + token(end_argument_expression_arg_t) noexcept + : token_kind_(jsonpath_token_kind::end_argument_expression) + { + } + + token(selector_type* selector) + : token_kind_(jsonpath_token_kind::selector), selector_(selector) + { + } + + token(std::unique_ptr&& expr) + : token_kind_(jsonpath_token_kind::expression) + { + new (&expression_) std::unique_ptr(std::move(expr)); + } + + token(const function_base* function) noexcept + : token_kind_(jsonpath_token_kind::function), + function_(function) + { + } + + token(argument_arg_t) noexcept + : token_kind_(jsonpath_token_kind::argument) + { + } + + token(literal_arg_t, Json&& value) noexcept + : token_kind_(jsonpath_token_kind::literal), value_(std::move(value)) + { + } + + token(token&& other) noexcept + { + construct(std::forward(other)); + } + + const Json& get_value(const_reference_arg_t, dynamic_resources&) const + { + return value_; + } + + Json& get_value(reference_arg_t, dynamic_resources& resources) const + { + return *resources.create_json(value_); + } + + token& operator=(token&& other) + { + if (&other != this) + { + if (token_kind_ == other.token_kind_) + { + switch (token_kind_) + { + case jsonpath_token_kind::selector: + selector_ = other.selector_; + break; + case jsonpath_token_kind::expression: + expression_ = std::move(other.expression_); + break; + case jsonpath_token_kind::unary_operator: + unary_operator_ = other.unary_operator_; + break; + case jsonpath_token_kind::binary_operator: + binary_operator_ = other.binary_operator_; + break; + case jsonpath_token_kind::function: + function_ = other.function_; + break; + case jsonpath_token_kind::literal: + value_ = std::move(other.value_); + break; + default: + break; + } + } + else + { + destroy(); + construct(std::forward(other)); + } + } + return *this; + } + + ~token() noexcept + { + destroy(); + } + + jsonpath_token_kind token_kind() const + { + return token_kind_; + } + + bool is_lparen() const + { + return token_kind_ == jsonpath_token_kind::lparen; + } + + bool is_rparen() const + { + return token_kind_ == jsonpath_token_kind::rparen; + } + + bool is_current_node() const + { + return token_kind_ == jsonpath_token_kind::current_node; + } + + bool is_path() const + { + return token_kind_ == jsonpath_token_kind::selector && selector_->is_path(); + } + + bool is_operator() const + { + return token_kind_ == jsonpath_token_kind::unary_operator || + token_kind_ == jsonpath_token_kind::binary_operator; + } + + std::size_t precedence_level() const + { + switch(token_kind_) + { + case jsonpath_token_kind::selector: + return selector_->precedence_level(); + case jsonpath_token_kind::unary_operator: + return unary_operator_->precedence_level(); + case jsonpath_token_kind::binary_operator: + return binary_operator_->precedence_level(); + default: + return 0; + } + } + + jsoncons::optional arity() const + { + return token_kind_ == jsonpath_token_kind::function ? function_->arity() : jsoncons::optional(); + } + + bool is_right_associative() const + { + switch(token_kind_) + { + case jsonpath_token_kind::selector: + return selector_->is_right_associative(); + case jsonpath_token_kind::unary_operator: + return unary_operator_->is_right_associative(); + case jsonpath_token_kind::binary_operator: + return binary_operator_->is_right_associative(); + default: + return false; + } + } + + void construct(token&& other) + { + token_kind_ = other.token_kind_; + switch (token_kind_) + { + case jsonpath_token_kind::selector: + selector_ = other.selector_; + break; + case jsonpath_token_kind::expression: + new (&expression_) std::unique_ptr(std::move(other.expression_)); + break; + case jsonpath_token_kind::unary_operator: + unary_operator_ = other.unary_operator_; + break; + case jsonpath_token_kind::binary_operator: + binary_operator_ = other.binary_operator_; + break; + case jsonpath_token_kind::function: + function_ = other.function_; + break; + case jsonpath_token_kind::literal: + new (&value_) Json(std::move(other.value_)); + break; + default: + break; + } + } + + void destroy() noexcept + { + switch(token_kind_) + { + case jsonpath_token_kind::expression: + expression_.~unique_ptr(); + break; + case jsonpath_token_kind::literal: + value_.~Json(); + break; + default: + break; + } + } + + std::string to_string(int level = 0) const + { + std::string s; + switch (token_kind_) + { + case jsonpath_token_kind::root_node: + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("root node"); + break; + case jsonpath_token_kind::current_node: + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("current node"); + break; + case jsonpath_token_kind::argument: + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("argument"); + break; + case jsonpath_token_kind::selector: + s.append(selector_->to_string(level)); + break; + case jsonpath_token_kind::expression: + s.append(expression_->to_string(level)); + break; + case jsonpath_token_kind::literal: + { + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + auto sbuf = value_.to_string(); + unicode_traits::convert(sbuf.data(), sbuf.size(), s); + break; + } + case jsonpath_token_kind::binary_operator: + s.append(binary_operator_->to_string(level)); + break; + case jsonpath_token_kind::function: + s.append(function_->to_string(level)); + break; + default: + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("token kind: "); + s.append(jsoncons::jsonpath::detail::to_string(token_kind_)); + break; + } + //s.append("\n"); + return s; + } + }; + + template + class callback_receiver : public node_receiver + { + Callback& callback_; + public: + using reference = JsonReference; + using char_type = typename Json::char_type; + using json_location_node_type = json_location_node; + using json_location_type = json_location; + + callback_receiver(Callback& callback) + : callback_(callback) + { + } + + void add(const json_location_node_type& path_tail, + reference value) override + { + callback_(json_location_type(path_tail), value); + } + }; + + template + class path_expression + { + public: + using char_type = typename Json::char_type; + using string_type = std::basic_string>; + using string_view_type = typename Json::string_view_type; + using path_value_pair_type = path_value_pair; + using path_value_pair_less_type = path_value_pair_less; + using path_value_pair_equal_type = path_value_pair_equal; + using value_type = Json; + using reference = typename path_value_pair_type::reference; + using pointer = typename path_value_pair_type::value_pointer; + using token_type = token; + using reference_arg_type = typename std::conditional::type>::value, + const_reference_arg_t,reference_arg_t>::type; + using json_location_node_type = json_location_node; + using json_location_type = json_location; + using selector_type = jsonpath_selector; + private: + selector_type* selector_; + result_options required_options_; + public: + + path_expression() + : required_options_() + { + } + + path_expression(path_expression&& expr) = default; + + path_expression(selector_type* selector, bool paths_required) + : selector_(selector), required_options_() + { + if (paths_required) + { + required_options_ |= result_options::path; + } + } + + path_expression& operator=(path_expression&& expr) = default; + + Json evaluate(dynamic_resources& resources, + reference root, + const json_location_node_type& path, + reference instance, + result_options options) const + { + Json result(json_array_arg); + + if ((options & result_options::path) == result_options::path) + { + auto callback = [&result](const json_location_type& path, reference) + { + result.emplace_back(path.to_string()); + }; + evaluate(resources, root, path, instance, callback, options); + } + else + { + auto callback = [&result](const json_location_type&, reference val) + { + result.push_back(val); + }; + evaluate(resources, root, path, instance, callback, options); + } + + return result; + } + + template + typename std::enable_if::value,void>::type + evaluate(dynamic_resources& resources, + reference root, + const json_location_node_type& path, + reference current, + Callback callback, + result_options options) const + { + std::error_code ec; + + options |= required_options_; + + const result_options require_more = result_options::nodups | result_options::sort; + + if ((options & require_more) != result_options()) + { + path_value_receiver receiver; + selector_->select(resources, root, path, current, receiver, options); + + if (receiver.nodes.size() > 1 && (options & result_options::sort) == result_options::sort) + { + std::sort(receiver.nodes.begin(), receiver.nodes.end(), path_value_pair_less_type()); + } + + if (receiver.nodes.size() > 1 && (options & result_options::nodups) == result_options::nodups) + { + if ((options & result_options::sort) == result_options::sort) + { + auto last = std::unique(receiver.nodes.begin(),receiver.nodes.end(),path_value_pair_equal_type()); + receiver.nodes.erase(last,receiver.nodes.end()); + for (auto& node : receiver.nodes) + { + callback(node.path(), node.value()); + } + } + else + { + std::vector index(receiver.nodes); + std::sort(index.begin(), index.end(), path_value_pair_less_type()); + auto last = std::unique(index.begin(),index.end(),path_value_pair_equal_type()); + index.erase(last,index.end()); + + std::vector temp2; + temp2.reserve(index.size()); + for (auto&& node : receiver.nodes) + { + auto it = std::lower_bound(index.begin(),index.end(),node, path_value_pair_less_type()); + if (it != index.end() && it->path() == node.path()) + { + temp2.emplace_back(std::move(node)); + index.erase(it); + } + } + for (auto& node : temp2) + { + callback(node.path(), node.value()); + } + } + } + else + { + for (auto& node : receiver.nodes) + { + callback(node.path(), node.value()); + } + } + } + else + { + callback_receiver receiver(callback); + selector_->select(resources, root, path, current, receiver, options); + } + } + + std::string to_string(int level) const + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("expression "); + s.append(selector_->to_string(level+1)); + + return s; + + } + }; + + template + class expression : public expression_base + { + public: + using path_value_pair_type = path_value_pair; + using value_type = Json; + using reference = typename path_value_pair_type::reference; + using pointer = typename path_value_pair_type::value_pointer; + using const_pointer = const value_type*; + using char_type = typename Json::char_type; + using string_type = std::basic_string>; + using string_view_type = typename Json::string_view_type; + using path_value_pair_less_type = path_value_pair_less; + using path_value_pair_equal_type = path_value_pair_equal; + using parameter_type = parameter; + using token_type = token; + using reference_arg_type = typename std::conditional::type>::value, + const_reference_arg_t,reference_arg_t>::type; + using json_location_node_type = json_location_node; + using stack_item_type = value_or_pointer; + private: + std::vector token_list_; + public: + + expression() + { + } + + expression(expression&& expr) + : token_list_(std::move(expr.token_list_)) + { + } + + expression(std::vector&& token_stack) + : token_list_(std::move(token_stack)) + { + } + + expression& operator=(expression&& expr) = default; + + value_type evaluate(dynamic_resources& resources, + reference root, + reference current, + result_options options, + std::error_code& ec) const override + { + std::vector stack; + std::vector arg_stack; + + //std::cout << "EVALUATE TOKENS\n"; + //for (auto& tok : token_list_) + //{ + // std::cout << tok.to_string() << "\n"; + //} + //std::cout << "\n"; + + if (!token_list_.empty()) + { + for (auto& tok : token_list_) + { + //std::cout << "Token: " << tok.to_string() << "\n"; + switch (tok.token_kind()) + { + case jsonpath_token_kind::literal: + { + stack.emplace_back(std::addressof(tok.get_value(reference_arg_type(), resources))); + break; + } + case jsonpath_token_kind::unary_operator: + { + JSONCONS_ASSERT(stack.size() >= 1); + auto item = std::move(stack.back()); + stack.pop_back(); + + auto val = tok.unary_operator_->evaluate(item.value(), ec); + stack.emplace_back(std::move(val)); + break; + } + case jsonpath_token_kind::binary_operator: + { + //std::cout << "binary operator: " << stack.size() << "\n"; + JSONCONS_ASSERT(stack.size() >= 2); + auto rhs = std::move(stack.back()); + //std::cout << "rhs: " << *rhs << "\n"; + stack.pop_back(); + auto lhs = std::move(stack.back()); + //std::cout << "lhs: " << *lhs << "\n"; + stack.pop_back(); + + auto val = tok.binary_operator_->evaluate(lhs.value(), rhs.value(), ec); + //std::cout << "Evaluate binary expression: " << r << "\n"; + stack.emplace_back(std::move(val)); + break; + } + case jsonpath_token_kind::root_node: + //std::cout << "root: " << root << "\n"; + stack.emplace_back(std::addressof(root)); + break; + case jsonpath_token_kind::current_node: + //std::cout << "current: " << current << "\n"; + stack.emplace_back(std::addressof(current)); + break; + case jsonpath_token_kind::argument: + JSONCONS_ASSERT(!stack.empty()); + //std::cout << "argument stack items " << stack.size() << "\n"; + //for (auto& item : stack) + //{ + // std::cout << *item.to_pointer(resources) << "\n"; + //} + //std::cout << "\n"; + arg_stack.emplace_back(std::move(stack.back())); + //for (auto& item : arg_stack) + //{ + // std::cout << *item << "\n"; + //} + //std::cout << "\n"; + stack.pop_back(); + break; + case jsonpath_token_kind::function: + { + if (tok.function_->arity() && *(tok.function_->arity()) != arg_stack.size()) + { + ec = jsonpath_errc::invalid_arity; + return Json::null(); + } + //std::cout << "function arg stack:\n"; + //for (auto& item : arg_stack) + //{ + // std::cout << *item << "\n"; + //} + //std::cout << "\n"; + + value_type val = tok.function_->evaluate(arg_stack, ec); + if (ec) + { + return Json::null(); + } + //std::cout << "function result: " << val << "\n"; + arg_stack.clear(); + stack.emplace_back(std::move(val)); + break; + } + case jsonpath_token_kind::expression: + { + value_type val = tok.expression_->evaluate(resources, root, current, options, ec); + stack.emplace_back(std::move(val)); + break; + } + case jsonpath_token_kind::selector: + { + JSONCONS_ASSERT(!stack.empty()); + auto item = std::move(stack.back()); + //for (auto& item : stack) + //{ + //std::cout << "selector stack input:\n"; + //switch (item.tag) + //{ + // case node_set_tag::single: + // std::cout << "single: " << *(item.node.ptr) << "\n"; + // break; + // case node_set_tag::multi: + // for (auto& node : stack.back().ptr().nodes) + // { + // std::cout << "multi: " << *node.ptr << "\n"; + // } + // break; + // default: + // break; + //} + //std::cout << "\n"; + //} + //std::cout << "selector item: " << *ptr << "\n"; + + reference val = tok.selector_->evaluate(resources, root, resources.current_path_node(), item.value(), options, ec); + + stack.pop_back(); + stack.emplace_back(stack_item_type(std::addressof(val))); + break; + } + default: + break; + } + } + } + + //if (stack.size() != 1) + //{ + // std::cout << "Stack size: " << stack.size() << "\n"; + //} + return stack.empty() ? Json::null() : stack.back().value(); + } + + std::string to_string(int level) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("expression "); + for (const auto& item : token_list_) + { + s.append(item.to_string(level+1)); + } + + return s; + + } + private: + }; + +} // namespace detail +} // namespace jsonpath +} // namespace jsoncons + +#endif // JSONCONS_JSONPATH_JSONPATH_EXPRESSION_HPP diff --git a/include/jsoncons_ext/jsonpath/flatten.hpp b/include/jsoncons_ext/jsonpath/flatten.hpp new file mode 100644 index 0000000..938391f --- /dev/null +++ b/include/jsoncons_ext/jsonpath/flatten.hpp @@ -0,0 +1,432 @@ +// Copyright 2021 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSONPATH_FLATTEN_HPP +#define JSONCONS_JSONPATH_FLATTEN_HPP + +#include +#include +#include +#include // std::is_const +#include // std::numeric_limits +#include // std::move +#include // std::copy +#include // std::back_inserter +#include + +namespace jsoncons { namespace jsonpath { + + template + std::size_t escape_string(const CharT* s, std::size_t length, + Sink& sink) + { + std::size_t count = 0; + const CharT* begin = s; + const CharT* end = s + length; + for (const CharT* it = begin; it != end; ++it) + { + CharT c = *it; + switch (c) + { + case '\\': + sink.push_back('\\'); + sink.push_back('\\'); + count += 2; + break; + case '\'': + sink.push_back('\\'); + sink.push_back('\''); + count += 2; + break; + case '\b': + sink.push_back('\\'); + sink.push_back('b'); + count += 2; + break; + case '\f': + sink.push_back('\\'); + sink.push_back('f'); + count += 2; + break; + case '\n': + sink.push_back('\\'); + sink.push_back('n'); + count += 2; + break; + case '\r': + sink.push_back('\\'); + sink.push_back('r'); + count += 2; + break; + case '\t': + sink.push_back('\\'); + sink.push_back('t'); + count += 2; + break; + default: + sink.push_back(c); + ++count; + break; + } + } + return count; + } + + template + void flatten_(const std::basic_string& parent_key, + const Json& parent_value, + Json& result) + { + using char_type = typename Json::char_type; + using string_type = std::basic_string; + + switch (parent_value.type()) + { + case json_type::array_value: + { + if (parent_value.empty()) + { + result.try_emplace(parent_key, parent_value); + } + else + { + for (std::size_t i = 0; i < parent_value.size(); ++i) + { + string_type key(parent_key); + key.push_back('['); + jsoncons::detail::from_integer(i,key); + key.push_back(']'); + flatten_(key, parent_value.at(i), result); + } + } + break; + } + + case json_type::object_value: + { + if (parent_value.empty()) + { + result.try_emplace(parent_key, Json()); + } + else + { + for (const auto& item : parent_value.object_range()) + { + string_type key(parent_key); + key.push_back('['); + key.push_back('\''); + escape_string(item.key().data(), item.key().length(), key); + key.push_back('\''); + key.push_back(']'); + flatten_(key, item.value(), result); + } + } + break; + } + + default: + { + result[parent_key] = parent_value; + break; + } + } + } + + template + Json flatten(const Json& value) + { + Json result; + std::basic_string parent_key = {'$'}; + flatten_(parent_key, value, result); + return result; + } + + enum class unflatten_state + { + start, + expect_lbracket, + lbracket, + single_quoted_name_state, + double_quoted_name_state, + index_state, + expect_rbracket, + double_quoted_string_escape_char, + single_quoted_string_escape_char + }; + + template + Json unflatten(const Json& value) + { + using char_type = typename Json::char_type; + using string_type = std::basic_string; + + if (JSONCONS_UNLIKELY(!value.is_object())) + { + JSONCONS_THROW(jsonpath_error(jsonpath_errc::argument_to_unflatten_invalid)); + } + + Json result; + + for (const auto& item : value.object_range()) + { + Json* part = &result; + string_type buffer; + unflatten_state state = unflatten_state::start; + + auto it = item.key().begin(); + auto last = item.key().end(); + + for (; it != last; ++it) + { + switch (state) + { + case unflatten_state::start: + { + switch (*it) + { + case '$': + state = unflatten_state::expect_lbracket; + break; + default: + break; + } + break; + } + case unflatten_state::expect_lbracket: + { + switch (*it) + { + case '[': + state = unflatten_state::lbracket; + break; + default: + JSONCONS_THROW(jsonpath_error(jsonpath_errc::invalid_flattened_key)); + break; + } + break; + } + case unflatten_state::lbracket: + { + switch (*it) + { + case '\'': + state = unflatten_state::single_quoted_name_state; + break; + case '\"': + state = unflatten_state::double_quoted_name_state; + break; + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8':case '9': + buffer.push_back(*it); + state = unflatten_state::index_state; + break; + default: + JSONCONS_THROW(jsonpath_error(jsonpath_errc::invalid_flattened_key)); + break; + } + break; + } + case unflatten_state::single_quoted_name_state: + { + switch (*it) + { + case '\'': + if (it != last-2) + { + auto res = part->try_emplace(buffer,Json()); + part = &(res.first->value()); + } + else + { + auto res = part->try_emplace(buffer,item.value()); + part = &(res.first->value()); + } + buffer.clear(); + state = unflatten_state::expect_rbracket; + break; + case '\\': + state = unflatten_state::single_quoted_string_escape_char; + break; + default: + buffer.push_back(*it); + break; + } + break; + } + case unflatten_state::double_quoted_name_state: + { + switch (*it) + { + case '\"': + if (it != last-2) + { + auto res = part->try_emplace(buffer,Json()); + part = &(res.first->value()); + } + else + { + auto res = part->try_emplace(buffer,item.value()); + part = &(res.first->value()); + } + buffer.clear(); + state = unflatten_state::expect_rbracket; + break; + case '\\': + state = unflatten_state::double_quoted_string_escape_char; + break; + default: + buffer.push_back(*it); + break; + } + break; + } + case unflatten_state::double_quoted_string_escape_char: + switch (*it) + { + case '\"': + buffer.push_back('\"'); + state = unflatten_state::double_quoted_name_state; + break; + case '\\': + buffer.push_back('\\'); + state = unflatten_state::double_quoted_name_state; + break; + case '/': + buffer.push_back('/'); + state = unflatten_state::double_quoted_name_state; + break; + case 'b': + buffer.push_back('\b'); + state = unflatten_state::double_quoted_name_state; + break; + case 'f': + buffer.push_back('\f'); + state = unflatten_state::double_quoted_name_state; + break; + case 'n': + buffer.push_back('\n'); + state = unflatten_state::double_quoted_name_state; + break; + case 'r': + buffer.push_back('\r'); + state = unflatten_state::double_quoted_name_state; + break; + case 't': + buffer.push_back('\t'); + state = unflatten_state::double_quoted_name_state; + break; + default: + break; + } + break; + case unflatten_state::single_quoted_string_escape_char: + switch (*it) + { + case '\'': + buffer.push_back('\''); + state = unflatten_state::single_quoted_name_state; + break; + case '\\': + buffer.push_back('\\'); + state = unflatten_state::double_quoted_name_state; + break; + case '/': + buffer.push_back('/'); + state = unflatten_state::double_quoted_name_state; + break; + case 'b': + buffer.push_back('\b'); + state = unflatten_state::double_quoted_name_state; + break; + case 'f': + buffer.push_back('\f'); + state = unflatten_state::double_quoted_name_state; + break; + case 'n': + buffer.push_back('\n'); + state = unflatten_state::double_quoted_name_state; + break; + case 'r': + buffer.push_back('\r'); + state = unflatten_state::double_quoted_name_state; + break; + case 't': + buffer.push_back('\t'); + state = unflatten_state::double_quoted_name_state; + break; + default: + break; + } + break; + case unflatten_state::index_state: + { + switch (*it) + { + case ']': + { + std::size_t n{0}; + auto r = jsoncons::detail::to_integer(buffer.data(), buffer.size(), n); + if (r) + { + if (!part->is_array()) + { + *part = Json(json_array_arg); + } + if (it != last-1) + { + if (n+1 > part->size()) + { + Json& ref = part->emplace_back(); + part = std::addressof(ref); + } + else + { + part = &part->at(n); + } + } + else + { + Json& ref = part->emplace_back(item.value()); + part = std::addressof(ref); + } + } + buffer.clear(); + state = unflatten_state::expect_lbracket; + break; + } + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8':case '9': + buffer.push_back(*it); + break; + default: + JSONCONS_THROW(jsonpath_error(jsonpath_errc::invalid_flattened_key)); + break; + } + break; + } + case unflatten_state::expect_rbracket: + { + switch (*it) + { + case ']': + state = unflatten_state::expect_lbracket; + break; + default: + JSONCONS_THROW(jsonpath_error(jsonpath_errc::invalid_flattened_key)); + break; + } + break; + } + default: + JSONCONS_UNREACHABLE(); + break; + } + } + } + + return result; + } +}} + +#endif diff --git a/include/jsoncons_ext/jsonpath/json_location.hpp b/include/jsoncons_ext/jsonpath/json_location.hpp new file mode 100644 index 0000000..9105608 --- /dev/null +++ b/include/jsoncons_ext/jsonpath/json_location.hpp @@ -0,0 +1,445 @@ +// Copyright 2021 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSONPATH_JSON_LOCATION_HPP +#define JSONCONS_JSONPATH_JSON_LOCATION_HPP + +#include +#include +#include +#include // std::reverse +#include +#include +#include +#include + +namespace jsoncons { +namespace jsonpath { + + template + class json_location; + + enum class json_location_node_kind { root, index, name }; + + template + class json_location_node + { + friend class json_location; + public: + using char_type = CharT; + using string_type = std::basic_string; + private: + + const json_location_node* parent_; + json_location_node_kind node_kind_; + string_type name_; + std::size_t index_; + public: + json_location_node(char_type c) + : parent_(nullptr), node_kind_(json_location_node_kind::root), index_(0) + { + name_.push_back(c); + } + + json_location_node(const json_location_node* parent, const string_type& name) + : parent_(parent), node_kind_(json_location_node_kind::name), name_(name), index_(0) + { + } + + json_location_node(const json_location_node* parent, std::size_t index) + : parent_(parent), node_kind_(json_location_node_kind::index), index_(index) + { + } + + const json_location_node* parent() const { return parent_;} + + json_location_node_kind node_kind() const + { + return node_kind_; + } + + const string_type& name() const + { + return name_; + } + + std::size_t index() const + { + return index_; + } + + void swap(json_location_node& node) + { + std::swap(parent_, node.parent_); + std::swap(node_kind_, node.node_kind_); + std::swap(name_, node.name_); + std::swap(index_, node.index_); + } + + private: + + std::size_t node_hash() const + { + std::size_t h = node_kind_ == json_location_node_kind::index ? std::hash{}(index_) : std::hash{}(name_); + + return h; + } + + int compare_node(const json_location_node& other) const + { + int diff = 0; + if (node_kind_ != other.node_kind_) + { + diff = static_cast(node_kind_) - static_cast(other.node_kind_); + } + else + { + switch (node_kind_) + { + case json_location_node_kind::root: + diff = name_.compare(other.name_); + break; + case json_location_node_kind::index: + diff = index_ < other.index_ ? -1 : index_ > other.index_ ? 1 : 0; + break; + case json_location_node_kind::name: + diff = name_.compare(other.name_); + break; + } + } + return diff; + } + }; + + namespace detail { + + template + class json_location_iterator + { + Iterator it_; + + public: + using iterator_category = std::random_access_iterator_tag; + + using value_type = typename std::remove_pointer::value_type>::type; + using difference_type = typename std::iterator_traits::difference_type; + using pointer = const value_type*; + using reference = const value_type&; + + json_location_iterator() : it_() + { + } + + explicit json_location_iterator(Iterator ptr) : it_(ptr) + { + } + + json_location_iterator(const json_location_iterator&) = default; + json_location_iterator(json_location_iterator&&) = default; + json_location_iterator& operator=(const json_location_iterator&) = default; + json_location_iterator& operator=(json_location_iterator&&) = default; + + template ::value && std::is_convertible::value>::type> + json_location_iterator(const json_location_iterator& other) + : it_(other.it_) + { + } + + operator Iterator() const + { + return it_; + } + + reference operator*() const + { + return *(*it_); + } + + pointer operator->() const + { + return (*it_); + } + + json_location_iterator& operator++() + { + ++it_; + return *this; + } + + json_location_iterator operator++(int) + { + json_location_iterator temp = *this; + ++*this; + return temp; + } + + json_location_iterator& operator--() + { + --it_; + return *this; + } + + json_location_iterator operator--(int) + { + json_location_iterator temp = *this; + --*this; + return temp; + } + + json_location_iterator& operator+=(const difference_type offset) + { + it_ += offset; + return *this; + } + + json_location_iterator operator+(const difference_type offset) const + { + json_location_iterator temp = *this; + return temp += offset; + } + + json_location_iterator& operator-=(const difference_type offset) + { + return *this += -offset; + } + + json_location_iterator operator-(const difference_type offset) const + { + json_location_iterator temp = *this; + return temp -= offset; + } + + difference_type operator-(const json_location_iterator& rhs) const noexcept + { + return it_ - rhs.it_; + } + + reference operator[](const difference_type offset) const noexcept + { + return *(*(*this + offset)); + } + + bool operator==(const json_location_iterator& rhs) const noexcept + { + return it_ == rhs.it_; + } + + bool operator!=(const json_location_iterator& rhs) const noexcept + { + return !(*this == rhs); + } + + bool operator<(const json_location_iterator& rhs) const noexcept + { + return it_ < rhs.it_; + } + + bool operator>(const json_location_iterator& rhs) const noexcept + { + return rhs < *this; + } + + bool operator<=(const json_location_iterator& rhs) const noexcept + { + return !(rhs < *this); + } + + bool operator>=(const json_location_iterator& rhs) const noexcept + { + return !(*this < rhs); + } + + inline + friend json_location_iterator operator+( + difference_type offset, json_location_iterator next) + { + return next += offset; + } + }; + + } // namespace detail + + template + class json_location + { + public: + using char_type = CharT; + using string_type = std::basic_string; + using json_location_node_type = json_location_node; + private: + std::vector nodes_; + public: + using iterator = typename detail::json_location_iterator::iterator>; + using const_iterator = typename detail::json_location_iterator::const_iterator>; + + json_location(const json_location_node_type& node) + { + const json_location_node_type* p = std::addressof(node); + do + { + nodes_.push_back(p); + p = p->parent_; + } + while (p != nullptr); + + std::reverse(nodes_.begin(), nodes_.end()); + } + + iterator begin() + { + return iterator(nodes_.begin()); + } + + iterator end() + { + return iterator(nodes_.end()); + } + + const_iterator begin() const + { + return const_iterator(nodes_.begin()); + } + + const_iterator end() const + { + return const_iterator(nodes_.end()); + } + + const json_location_node_type& last() const + { + return *nodes_.back(); + } + + string_type to_string() const + { + string_type buffer; + + for (const auto& node : nodes_) + { + switch (node->node_kind()) + { + case json_location_node_kind::root: + buffer.append(node->name()); + break; + case json_location_node_kind::name: + buffer.push_back('['); + buffer.push_back('\''); + for (auto c : node->name()) + { + if (c == '\'') + { + buffer.push_back('\\'); + buffer.push_back('\''); + } + else + { + buffer.push_back(c); + } + } + buffer.push_back('\''); + buffer.push_back(']'); + break; + case json_location_node_kind::index: + buffer.push_back('['); + jsoncons::detail::from_integer(node->index(), buffer); + buffer.push_back(']'); + break; + } + } + + return buffer; + } + + int compare(const json_location& other) const + { + if (this == &other) + { + return 0; + } + + auto it1 = nodes_.begin(); + auto it2 = other.nodes_.begin(); + while (it1 != nodes_.end() && it2 != other.nodes_.end()) + { + int diff = (*it1)->compare_node(*(*it2)); + if (diff != 0) + { + return diff; + } + ++it1; + ++it2; + } + return (nodes_.size() < other.nodes_.size()) ? -1 : (nodes_.size() == other.nodes_.size()) ? 0 : 1; + } + + std::size_t hash() const + { + + auto it = nodes_.begin(); + std::size_t hash = (*it).hash(); + ++it; + + while (it != nodes_.end()) + { + hash += 17*(*it)->node_hash(); + ++it; + } + + return hash; + } + + friend bool operator==(const json_location& lhs, const json_location& rhs) + { + return lhs.compare(rhs) == 0; + } + + friend bool operator!=(const json_location& lhs, const json_location& rhs) + { + return !(lhs == rhs); + } + + friend bool operator<(const json_location& lhs, const json_location& rhs) + { + return lhs.compare(rhs) < 0; + } + }; + + template + Json* select(Json& root, const json_location& path) + { + Json* current = std::addressof(root); + for (const auto& json_location_node : path) + { + if (json_location_node.node_kind() == json_location_node_kind::index) + { + if (current->type() != json_type::array_value || json_location_node.index() >= current->size()) + { + return nullptr; + } + current = std::addressof(current->at(json_location_node.index())); + } + else if (json_location_node.node_kind() == json_location_node_kind::name) + { + if (current->type() != json_type::object_value) + { + return nullptr; + } + auto it = current->find(json_location_node.name()); + if (it == current->object_range().end()) + { + return nullptr; + } + current = std::addressof(it->value()); + } + } + return current; + } + +} // namespace jsonpath +} // namespace jsoncons + +#endif diff --git a/include/jsoncons_ext/jsonpath/json_query.hpp b/include/jsoncons_ext/jsonpath/json_query.hpp new file mode 100644 index 0000000..8facfa9 --- /dev/null +++ b/include/jsoncons_ext/jsonpath/json_query.hpp @@ -0,0 +1,115 @@ +// Copyright 2021 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSONPATH_JSON_QUERY_HPP +#define JSONCONS_JSONPATH_JSON_QUERY_HPP + +#include +#include + +namespace jsoncons { +namespace jsonpath { + + template + Json json_query(const Json& instance, + const typename Json::string_view_type& path, + result_options options = result_options(), + const custom_functions& functions = custom_functions()) + { + auto expr = make_expression(path, functions); + return expr.evaluate(instance, options); + } + + template + typename std::enable_if&,const Json&>::value,void>::type + json_query(const Json& instance, + const typename Json::string_view_type& path, + Callback callback, + result_options options = result_options(), + const custom_functions& functions = custom_functions()) + { + auto expr = make_expression(path, functions); + expr.evaluate(instance, callback, options); + } + + template + typename std::enable_if::value,void>::type + json_replace(Json& instance, const typename Json::string_view_type& path, T&& new_value, + result_options options = result_options::nodups, + const custom_functions& funcs = custom_functions()) + { + using evaluator_t = typename jsoncons::jsonpath::detail::jsonpath_evaluator; + //using string_type = typename evaluator_t::string_type; + using value_type = typename evaluator_t::value_type; + using reference = typename evaluator_t::reference; + using json_selector_t = typename evaluator_t::path_expression_type; + using json_location_type = typename evaluator_t::json_location_type; + + jsoncons::jsonpath::detail::static_resources static_resources(funcs); + evaluator_t e; + json_selector_t expr = e.compile(static_resources, path); + + jsoncons::jsonpath::detail::dynamic_resources resources; + auto callback = [&new_value](const json_location_type&, reference v) + { + v = std::forward(new_value); + }; + expr.evaluate(resources, instance, resources.root_path_node(), instance, callback, options); + } + + template + typename std::enable_if::value,void>::type + json_replace(Json& instance, const typename Json::string_view_type& path , UnaryCallback callback) + { + using evaluator_t = typename jsoncons::jsonpath::detail::jsonpath_evaluator; + //using string_type = typename evaluator_t::string_type; + using value_type = typename evaluator_t::value_type; + using reference = typename evaluator_t::reference; + using json_selector_t = typename evaluator_t::path_expression_type; + using json_location_type = typename evaluator_t::json_location_type; + + jsoncons::jsonpath::detail::static_resources static_resources; + evaluator_t e; + json_selector_t expr = e.compile(static_resources, path); + + jsoncons::jsonpath::detail::dynamic_resources resources; + auto f = [callback](const json_location_type&, reference v) + { + v = callback(v); + }; + expr.evaluate(resources, instance, resources.root_path_node(), instance, f, result_options::nodups); + } + + template + typename std::enable_if&,Json&>::value,void>::type + json_replace(Json& instance, const typename Json::string_view_type& path , BinaryCallback callback, + result_options options = result_options::nodups, + const custom_functions& funcs = custom_functions()) + { + using evaluator_t = typename jsoncons::jsonpath::detail::jsonpath_evaluator; + //using string_type = typename evaluator_t::string_type; + using value_type = typename evaluator_t::value_type; + using reference = typename evaluator_t::reference; + using json_selector_t = typename evaluator_t::path_expression_type; + using json_location_type = typename evaluator_t::json_location_type; + + jsoncons::jsonpath::detail::static_resources static_resources(funcs); + evaluator_t e; + json_selector_t expr = e.compile(static_resources, path); + + jsoncons::jsonpath::detail::dynamic_resources resources; + + auto f = [&callback](const json_location_type& path, reference val) + { + callback(path.to_string(), val); + }; + expr.evaluate(resources, instance, resources.root_path_node(), instance, f, options); + } + +} // namespace jsonpath +} // namespace jsoncons + +#endif diff --git a/include/jsoncons_ext/jsonpath/jsonpath.hpp b/include/jsoncons_ext/jsonpath/jsonpath.hpp new file mode 100644 index 0000000..18500c5 --- /dev/null +++ b/include/jsoncons_ext/jsonpath/jsonpath.hpp @@ -0,0 +1,13 @@ +// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSONPATH_JSONPATH_HPP +#define JSONCONS_JSONPATH_JSONPATH_HPP + +#include +#include + +#endif diff --git a/include/jsoncons_ext/jsonpath/jsonpath_error.hpp b/include/jsoncons_ext/jsonpath/jsonpath_error.hpp new file mode 100644 index 0000000..8157bba --- /dev/null +++ b/include/jsoncons_ext/jsonpath/jsonpath_error.hpp @@ -0,0 +1,240 @@ +/// Copyright 2021 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSONPATH_JSONPATH_ERROR_HPP +#define JSONCONS_JSONPATH_JSONPATH_ERROR_HPP + +#include +#include + +namespace jsoncons { namespace jsonpath { + + enum class jsonpath_errc + { + success = 0, + expected_root_or_function, + expected_current_node, + expected_rparen, + expected_rbracket, + expected_separator, + expected_forward_slash, + expected_slice_start, + expected_slice_end, + expected_slice_step, + expected_bracket_specifier_or_union, + unexpected_operator, + invalid_function_name, + invalid_argument, + invalid_arity, + function_name_not_found, + parse_error_in_filter, + argument_parse_error, + unidentified_error, + unexpected_eof, + expected_colon_dot_left_bracket_comma_or_rbracket, + argument_to_unflatten_invalid, + invalid_flattened_key, + step_cannot_be_zero, + invalid_number, + illegal_escaped_character, + invalid_codepoint, + unknown_function, + invalid_type, + unbalanced_parentheses, + syntax_error, + expected_comparator, + expected_or, + expected_and, + expected_comma_or_rparen, + expected_comma_or_rbracket, + expected_relative_path + }; + + class jsonpath_error_category_impl + : public std::error_category + { + public: + const char* name() const noexcept override + { + return "jsoncons/jsonpath"; + } + std::string message(int ev) const override + { + switch (static_cast(ev)) + { + case jsonpath_errc::expected_root_or_function: + return "Expected '$' or function expression"; + case jsonpath_errc::expected_current_node: + return "Expected @"; + case jsonpath_errc::expected_rbracket: + return "Expected ]"; + case jsonpath_errc::expected_rparen: + return "Expected )"; + case jsonpath_errc::expected_slice_start: + return "Expected slice start"; + case jsonpath_errc::expected_slice_end: + return "Expected slice end"; + case jsonpath_errc::expected_slice_step: + return "Expected slice step"; + case jsonpath_errc::expected_separator: + return "Expected dot or left bracket separator"; + case jsonpath_errc::expected_forward_slash: + return "Invalid path filter, expected '/'"; + case jsonpath_errc::expected_bracket_specifier_or_union: + return "Expected index, single or double quoted name, expression, filter, absolute ('$') path or relative ('@') path"; + case jsonpath_errc::invalid_function_name: + return "Invalid function name"; + case jsonpath_errc::invalid_argument: + return "Invalid argument type"; + case jsonpath_errc::invalid_arity: + return "Incorrect number of arguments"; + case jsonpath_errc::function_name_not_found: + return "Function name not found"; + case jsonpath_errc::parse_error_in_filter: + return "Could not parse JSON expression in a JSONPath filter"; + case jsonpath_errc::argument_parse_error: + return "Could not parse JSON expression passed to JSONPath function"; + case jsonpath_errc::unidentified_error: + return "Unidentified error"; + case jsonpath_errc::unexpected_eof: + return "Unexpected EOF while parsing jsonpath expression"; + case jsonpath_errc::expected_colon_dot_left_bracket_comma_or_rbracket: + return "Expected ':', '.', '[', ',', or ']'"; + case jsonpath_errc::argument_to_unflatten_invalid: + return "Argument to unflatten must be an object"; + case jsonpath_errc::invalid_flattened_key: + return "Flattened key is invalid"; + case jsonpath_errc::step_cannot_be_zero: + return "Slice step cannot be zero"; + case jsonpath_errc::invalid_number: + return "Invalid number"; + case jsonpath_errc::illegal_escaped_character: + return "Illegal escaped character"; + case jsonpath_errc::invalid_codepoint: + return "Invalid codepoint"; + case jsonpath_errc::unknown_function: + return "Unknown function"; + case jsonpath_errc::invalid_type: + return "Invalid type"; + case jsonpath_errc::unbalanced_parentheses: + return "Unbalanced parentheses"; + case jsonpath_errc::syntax_error: + return "Syntax error"; + case jsonpath_errc::expected_comparator: + return "Expected comparator"; + case jsonpath_errc::expected_or: + return "Expected operator '||'"; + case jsonpath_errc::expected_and: + return "Expected operator '&&'"; + case jsonpath_errc::expected_comma_or_rparen: + return "Expected comma or right parenthesis"; + case jsonpath_errc::expected_comma_or_rbracket: + return "Expected comma or right bracket"; + case jsonpath_errc::expected_relative_path: + return "Expected unquoted string, or single or double quoted string, or index or '*'"; + default: + return "Unknown jsonpath parser error"; + } + } + }; + + inline + const std::error_category& jsonpath_error_category() + { + static jsonpath_error_category_impl instance; + return instance; + } + + inline + std::error_code make_error_code(jsonpath_errc result) + { + return std::error_code(static_cast(result),jsonpath_error_category()); + } + +} // jsonpath +} // jsoncons + +namespace std { + template<> + struct is_error_code_enum : public true_type + { + }; +} + +namespace jsoncons { namespace jsonpath { + + class jsonpath_error : public std::system_error, public virtual json_exception + { + std::size_t line_number_; + std::size_t column_number_; + mutable std::string what_; + public: + jsonpath_error(std::error_code ec) + : std::system_error(ec), line_number_(0), column_number_(0) + { + } + jsonpath_error(std::error_code ec, const std::string& what_arg) + : std::system_error(ec, what_arg), line_number_(0), column_number_(0) + { + } + jsonpath_error(std::error_code ec, std::size_t position) + : std::system_error(ec), line_number_(0), column_number_(position) + { + } + jsonpath_error(std::error_code ec, std::size_t line, std::size_t column) + : std::system_error(ec), line_number_(line), column_number_(column) + { + } + jsonpath_error(const jsonpath_error& other) = default; + + jsonpath_error(jsonpath_error&& other) = default; + + const char* what() const noexcept override + { + if (what_.empty()) + { + JSONCONS_TRY + { + what_.append(std::system_error::what()); + if (line_number_ != 0 && column_number_ != 0) + { + what_.append(" at line "); + what_.append(std::to_string(line_number_)); + what_.append(" and column "); + what_.append(std::to_string(column_number_)); + } + else if (column_number_ != 0) + { + what_.append(" at position "); + what_.append(std::to_string(column_number_)); + } + return what_.c_str(); + } + JSONCONS_CATCH(...) + { + return std::system_error::what(); + } + } + else + { + return what_.c_str(); + } + } + + std::size_t line() const noexcept + { + return line_number_; + } + + std::size_t column() const noexcept + { + return column_number_; + } + }; + +}} + +#endif diff --git a/include/jsoncons_ext/jsonpath/jsonpath_expression.hpp b/include/jsoncons_ext/jsonpath/jsonpath_expression.hpp new file mode 100644 index 0000000..a3537b3 --- /dev/null +++ b/include/jsoncons_ext/jsonpath/jsonpath_expression.hpp @@ -0,0 +1,2612 @@ +// Copyright 2021 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSONPATH_JSONPATH_EXPRESSION_HPP +#define JSONCONS_JSONPATH_JSONPATH_EXPRESSION_HPP + +#include +#include +#include +#include // std::is_const +#include // std::numeric_limits +#include // std::move +#include +#include // std::reverse +#include +#include +#include +#include + +namespace jsoncons { +namespace jsonpath { +namespace detail { + + enum class path_state + { + start, + root_or_current_node, + expect_function_expr, + relative_path, + relative_location, + parent_operator, + ancestor_depth, + filter_expression, + expression_rhs, + recursive_descent_or_expression_lhs, + path_or_literal_or_function, + json_text_or_function, + json_text_or_function_name, + json_text_string, + json_value, + json_string, + identifier_or_function_expr, + name_or_lbracket, + unquoted_string, + anything, + number, + function_expression, + argument, + zero_or_one_arguments, + one_or_more_arguments, + identifier, + single_quoted_string, + double_quoted_string, + bracketed_unquoted_name_or_union, + union_expression, + identifier_or_union, + bracket_specifier_or_union, + bracketed_wildcard, + index_or_slice, + wildcard_or_union, + union_element, + index_or_slice_or_union, + integer, + digit, + slice_expression_stop, + slice_expression_step, + comma_or_rbracket, + expect_rparen, + expect_rbracket, + quoted_string_escape_char, + escape_u1, + escape_u2, + escape_u3, + escape_u4, + escape_expect_surrogate_pair1, + escape_expect_surrogate_pair2, + escape_u5, + escape_u6, + escape_u7, + escape_u8, + expression, + comparator_expression, + eq_or_regex, + expect_regex, + regex, + regex_options, + regex_pattern, + cmp_lt_or_lte, + cmp_gt_or_gte, + cmp_ne, + expect_or, + expect_and + }; + + template + class jsonpath_evaluator : public ser_context + { + public: + using char_type = typename Json::char_type; + using string_type = std::basic_string>; + using string_view_type = typename Json::string_view_type; + using path_value_pair_type = path_value_pair; + using value_type = Json; + using reference = JsonReference; + using pointer = typename path_value_pair_type::value_pointer; + using token_type = token; + using path_expression_type = path_expression; + using expression_type = expression; + using json_location_type = json_location; + using json_location_node_type = json_location_node; + using selector_type = jsonpath_selector; + + private: + + std::size_t line_; + std::size_t column_; + const char_type* begin_input_; + const char_type* end_input_; + const char_type* p_; + + using argument_type = std::vector; + std::vector function_stack_; + std::vector state_stack_; + std::vector output_stack_; + std::vector operator_stack_; + + public: + jsonpath_evaluator() + : line_(1), column_(1), + begin_input_(nullptr), end_input_(nullptr), + p_(nullptr) + { + } + + jsonpath_evaluator(std::size_t line, std::size_t column) + : line_(line), column_(column), + begin_input_(nullptr), end_input_(nullptr), + p_(nullptr) + { + } + + std::size_t line() const + { + return line_; + } + + std::size_t column() const + { + return column_; + } + + path_expression_type compile(static_resources& resources, const string_view_type& path) + { + std::error_code ec; + auto result = compile(resources, path, ec); + if (ec) + { + JSONCONS_THROW(jsonpath_error(ec, line_, column_)); + } + return result; + } + + path_expression_type compile(static_resources& resources, + const string_view_type& path, + std::error_code& ec) + { + std::size_t selector_id = 0; + + string_type buffer; + string_type buffer2; + uint32_t cp = 0; + uint32_t cp2 = 0; + + begin_input_ = path.data(); + end_input_ = path.data() + path.length(); + p_ = begin_input_; + + slice slic; + bool paths_required = false; + int ancestor_depth = 0; + + state_stack_.emplace_back(path_state::start); + while (p_ < end_input_ && !state_stack_.empty()) + { + switch (state_stack_.back()) + { + case path_state::start: + { + switch (*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(); + break; + case '$': + case '@': + { + push_token(resources, token_type(resources.new_selector(current_node_selector())), ec); + if (ec) {return path_expression_type();} + state_stack_.emplace_back(path_state::relative_location); + ++p_; + ++column_; + break; + } + default: + { + state_stack_.emplace_back(path_state::relative_location); + state_stack_.emplace_back(path_state::expect_function_expr); + state_stack_.emplace_back(path_state::unquoted_string); + break; + } + } + break; + } + case path_state::root_or_current_node: + switch (*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(); + break; + case '$': + push_token(resources, token_type(root_node_arg), ec); + push_token(resources, token_type(resources.new_selector(root_selector(selector_id++))), ec); + if (ec) {return path_expression_type();} + state_stack_.pop_back(); + ++p_; + ++column_; + break; + case '@': + push_token(resources, token_type(current_node_arg), ec); // ISSUE + push_token(resources, token_type(resources.new_selector(current_node_selector())), ec); + if (ec) {return path_expression_type();} + state_stack_.pop_back(); + ++p_; + ++column_; + break; + default: + ec = jsonpath_errc::syntax_error; + return path_expression_type(); + } + break; + case path_state::recursive_descent_or_expression_lhs: + switch (*p_) + { + case '.': + push_token(resources, token_type(resources.new_selector(recursive_selector())), ec); + if (ec) {return path_expression_type();} + ++p_; + ++column_; + state_stack_.back() = path_state::name_or_lbracket; + break; + default: + state_stack_.back() = path_state::relative_path; + break; + } + break; + case path_state::name_or_lbracket: + switch (*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(); + break; + case '[': // [ can follow .. + state_stack_.back() = path_state::bracket_specifier_or_union; + ++p_; + ++column_; + break; + default: + buffer.clear(); + state_stack_.back() = path_state::relative_path; + break; + } + break; + case path_state::json_string: + { + //std::cout << "literal: " << buffer << "\n"; + push_token(resources, token_type(literal_arg, Json(buffer)), ec); + if (ec) {return path_expression_type();} + buffer.clear(); + state_stack_.pop_back(); // json_value + break; + } + case path_state::path_or_literal_or_function: + { + switch (*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(); + break; + case '$': + case '@': + state_stack_.back() = path_state::relative_location; + state_stack_.push_back(path_state::root_or_current_node); + break; + case '(': + { + ++p_; + ++column_; + push_token(resources, lparen_arg, ec); + if (ec) {return path_expression_type();} + state_stack_.back() = path_state::expect_rparen; + state_stack_.emplace_back(path_state::expression_rhs); + state_stack_.emplace_back(path_state::path_or_literal_or_function); + break; + } + case '\'': + state_stack_.back() = path_state::json_string; + state_stack_.emplace_back(path_state::single_quoted_string); + ++p_; + ++column_; + break; + case '\"': + state_stack_.back() = path_state::json_string; + state_stack_.emplace_back(path_state::double_quoted_string); + ++p_; + ++column_; + break; + case '!': + { + ++p_; + ++column_; + push_token(resources, token_type(resources.get_unary_not()), ec); + if (ec) {return path_expression_type();} + break; + } + case '-': + { + ++p_; + ++column_; + push_token(resources, token_type(resources.get_unary_minus()), ec); + if (ec) {return path_expression_type();} + break; + } + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8':case '9': + { + state_stack_.back() = path_state::json_value; + state_stack_.emplace_back(path_state::number); + break; + } + default: + { + state_stack_.back() = path_state::json_text_or_function_name; + break; + } + } + break; + } + case path_state::json_text_or_function: + { + switch(*p_) + { + case '(': + { + auto f = resources.get_function(buffer, ec); + if (ec) + { + return path_expression_type(); + } + buffer.clear(); + push_token(resources, current_node_arg, ec); + if (ec) {return path_expression_type();} + push_token(resources, token_type(f), ec); + if (ec) {return path_expression_type();} + state_stack_.back() = path_state::function_expression; + state_stack_.emplace_back(path_state::zero_or_one_arguments); + ++p_; + ++column_; + break; + } + default: + { + json_decoder decoder; + basic_json_parser parser; + parser.update(buffer.data(),buffer.size()); + parser.parse_some(decoder, ec); + if (ec) + { + return path_expression_type(); + } + parser.finish_parse(decoder, ec); + if (ec) + { + return path_expression_type(); + } + push_token(resources, token_type(literal_arg, decoder.get_result()), ec); + if (ec) {return path_expression_type();} + buffer.clear(); + state_stack_.pop_back(); + break; + } + } + break; + } + case path_state::json_value: + { + json_decoder decoder; + basic_json_parser parser; + parser.update(buffer.data(),buffer.size()); + parser.parse_some(decoder, ec); + if (ec) + { + return path_expression_type(); + } + parser.finish_parse(decoder, ec); + if (ec) + { + return path_expression_type(); + } + push_token(resources, token_type(literal_arg, decoder.get_result()), ec); + if (ec) {return path_expression_type();} + buffer.clear(); + state_stack_.pop_back(); + break; + } + case path_state::json_text_or_function_name: + switch (*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(); + break; + case '{': + case '[': + { + json_decoder decoder; + basic_json_parser parser; + parser.update(p_,end_input_ - p_); + parser.parse_some(decoder, ec); + if (ec) + { + return path_expression_type(); + } + parser.finish_parse(decoder, ec); + if (ec) + { + return path_expression_type(); + } + push_token(resources, token_type(literal_arg, decoder.get_result()), ec); + if (ec) {return path_expression_type();} + buffer.clear(); + state_stack_.pop_back(); + p_ = parser.current(); + column_ = column_ + parser.column() - 1; + break; + } + case '-':case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8':case '9': + state_stack_.back() = path_state::json_text_or_function; + state_stack_.emplace_back(path_state::number); + buffer.push_back(*p_); + ++p_; + ++column_; + break; + case '\"': + state_stack_.back() = path_state::json_text_or_function; + state_stack_.emplace_back(path_state::json_text_string); + buffer.push_back(*p_); + ++p_; + ++column_; + break; + default: + state_stack_.back() = path_state::json_text_or_function; + state_stack_.emplace_back(path_state::unquoted_string); + buffer.push_back(*p_); + ++p_; + ++column_; + break; + }; + break; + case path_state::number: + switch (*p_) + { + case '-':case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8':case '9': + case 'e':case 'E':case '.': + buffer.push_back(*p_); + ++p_; + ++column_; + break; + default: + state_stack_.pop_back(); // number + break; + }; + break; + case path_state::json_text_string: + switch (*p_) + { + case '\\': + buffer.push_back(*p_); + ++p_; + ++column_; + if (p_ == end_input_) + { + ec = jsonpath_errc::unexpected_eof; + return path_expression_type(); + } + buffer.push_back(*p_); + ++p_; + ++column_; + break; + case '\"': + buffer.push_back(*p_); + state_stack_.pop_back(); + ++p_; + ++column_; + break; + default: + buffer.push_back(*p_); + ++p_; + ++column_; + break; + }; + break; + case path_state::relative_path: + switch (*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(); + break; + case '*': + push_token(resources, token_type(resources.new_selector(wildcard_selector())), ec); + if (ec) {return path_expression_type();} + state_stack_.pop_back(); + ++p_; + ++column_; + break; + case '\'': + state_stack_.back() = path_state::identifier; + state_stack_.emplace_back(path_state::single_quoted_string); + ++p_; + ++column_; + break; + case '\"': + state_stack_.back() = path_state::identifier; + state_stack_.emplace_back(path_state::double_quoted_string); + ++p_; + ++column_; + break; + case '[': + case '.': + ec = jsonpath_errc::expected_relative_path; + return path_expression_type(); + default: + buffer.clear(); + state_stack_.back() = path_state::identifier_or_function_expr; + state_stack_.emplace_back(path_state::unquoted_string); + break; + } + break; + case path_state::identifier_or_function_expr: + { + switch(*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(); + break; + case '(': + { + auto f = resources.get_function(buffer, ec); + if (ec) + { + return path_expression_type(); + } + buffer.clear(); + push_token(resources, current_node_arg, ec); + push_token(resources, token_type(f), ec); + if (ec) {return path_expression_type();} + state_stack_.back() = path_state::function_expression; + state_stack_.emplace_back(path_state::zero_or_one_arguments); + ++p_; + ++column_; + break; + } + default: + { + push_token(resources, token_type(resources.new_selector(identifier_selector(buffer))), ec); + if (ec) {return path_expression_type();} + buffer.clear(); + state_stack_.pop_back(); + break; + } + } + break; + } + case path_state::expect_function_expr: + { + switch(*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(); + break; + case '(': + { + auto f = resources.get_function(buffer, ec); + if (ec) + { + return path_expression_type(); + } + buffer.clear(); + push_token(resources, current_node_arg, ec); + push_token(resources, token_type(f), ec); + if (ec) {return path_expression_type();} + state_stack_.back() = path_state::function_expression; + state_stack_.emplace_back(path_state::zero_or_one_arguments); + ++p_; + ++column_; + break; + } + default: + { + ec = jsonpath_errc::expected_root_or_function; + return path_expression_type(); + } + } + break; + } + case path_state::function_expression: + { + + switch (*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(); + break; + case ',': + push_token(resources, token_type(current_node_arg), ec); + if (ec) {return path_expression_type();} + push_token(resources, token_type(begin_expression_arg), ec); + if (ec) {return path_expression_type();} + if (ec) {return path_expression_type();} + state_stack_.emplace_back(path_state::argument); + state_stack_.emplace_back(path_state::expression_rhs); + state_stack_.emplace_back(path_state::path_or_literal_or_function); + ++p_; + ++column_; + break; + case ')': + { + push_token(resources, token_type(end_function_arg), ec); + if (ec) {return path_expression_type();} + state_stack_.pop_back(); + ++p_; + ++column_; + break; + } + default: + ec = jsonpath_errc::syntax_error; + return path_expression_type(); + } + break; + } + case path_state::zero_or_one_arguments: + { + switch (*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(); + break; + case ')': + state_stack_.pop_back(); + break; + default: + push_token(resources, token_type(begin_expression_arg), ec); + if (ec) {return path_expression_type();} + state_stack_.back() = path_state::one_or_more_arguments; + state_stack_.emplace_back(path_state::argument); + state_stack_.emplace_back(path_state::expression_rhs); + state_stack_.emplace_back(path_state::path_or_literal_or_function); + break; + } + break; + } + case path_state::one_or_more_arguments: + { + switch (*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(); + break; + case ')': + state_stack_.pop_back(); + break; + case ',': + push_token(resources, token_type(begin_expression_arg), ec); + if (ec) {return path_expression_type();} + state_stack_.emplace_back(path_state::argument); + state_stack_.emplace_back(path_state::expression_rhs); + state_stack_.emplace_back(path_state::path_or_literal_or_function); + ++p_; + ++column_; + break; + } + break; + } + case path_state::argument: + { + switch(*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(); + break; + case ',': + case ')': + { + push_token(resources, token_type(end_argument_expression_arg), ec); + push_token(resources, argument_arg, ec); + //push_token(resources, argument_arg, ec); + if (ec) {return path_expression_type();} + state_stack_.pop_back(); + break; + } + default: + ec = jsonpath_errc::expected_comma_or_rparen; + return path_expression_type(); + } + break; + } + case path_state::unquoted_string: + switch (*p_) + { + case 'a':case 'b':case 'c':case 'd':case 'e':case 'f':case 'g':case 'h':case 'i':case 'j':case 'k':case 'l':case 'm':case 'n':case 'o':case 'p':case 'q':case 'r':case 's':case 't':case 'u':case 'v':case 'w':case 'x':case 'y':case 'z': + case 'A':case 'B':case 'C':case 'D':case 'E':case 'F':case 'G':case 'H':case 'I':case 'J':case 'K':case 'L':case 'M':case 'N':case 'O':case 'P':case 'Q':case 'R':case 'S':case 'T':case 'U':case 'V':case 'W':case 'X':case 'Y':case 'Z': + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8':case '9': + case '_': + buffer.push_back(*p_); + ++p_; + ++column_; + break; + default: + if (typename std::make_unsigned::type(*p_) > 127) + { + buffer.push_back(*p_); + ++p_; + ++column_; + } + else + { + state_stack_.pop_back(); // unquoted_string + } + break; + }; + break; + case path_state::relative_location: + switch (*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(); + break; + case '.': + state_stack_.emplace_back(path_state::recursive_descent_or_expression_lhs); + ++p_; + ++column_; + break; + case '[': + state_stack_.emplace_back(path_state::bracket_specifier_or_union); + ++p_; + ++column_; + break; + case '^': + ancestor_depth = 0; + state_stack_.emplace_back(path_state::parent_operator); + state_stack_.emplace_back(path_state::ancestor_depth); + break; + default: + state_stack_.pop_back(); + break; + }; + break; + case path_state::parent_operator: + { + push_token(resources, token_type(resources.new_selector(parent_node_selector(ancestor_depth))), ec); + paths_required = true; + ancestor_depth = 0; + ++p_; + ++column_; + state_stack_.pop_back(); + break; + } + case path_state::ancestor_depth: + { + switch (*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(); + break; + case '^': + { + ++ancestor_depth; + ++p_; + ++column_; + break; + } + default: + { + state_stack_.pop_back(); + break; + } + } + break; + } + case path_state::expression_rhs: + switch (*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(); + break; + case '.': + state_stack_.emplace_back(path_state::recursive_descent_or_expression_lhs); + ++p_; + ++column_; + break; + case '[': + state_stack_.emplace_back(path_state::bracket_specifier_or_union); + ++p_; + ++column_; + break; + case ')': + { + state_stack_.pop_back(); + break; + } + case '|': + ++p_; + ++column_; + state_stack_.emplace_back(path_state::path_or_literal_or_function); + state_stack_.emplace_back(path_state::expect_or); + break; + case '&': + ++p_; + ++column_; + state_stack_.emplace_back(path_state::path_or_literal_or_function); + state_stack_.emplace_back(path_state::expect_and); + break; + case '<': + case '>': + { + state_stack_.emplace_back(path_state::comparator_expression); + break; + } + case '=': + { + state_stack_.emplace_back(path_state::eq_or_regex); + ++p_; + ++column_; + break; + } + case '!': + { + ++p_; + ++column_; + state_stack_.emplace_back(path_state::path_or_literal_or_function); + state_stack_.emplace_back(path_state::cmp_ne); + break; + } + case '+': + state_stack_.emplace_back(path_state::path_or_literal_or_function); + push_token(resources, token_type(resources.get_plus_operator()), ec); + if (ec) {return path_expression_type();} + ++p_; + ++column_; + break; + case '-': + state_stack_.emplace_back(path_state::path_or_literal_or_function); + push_token(resources, token_type(resources.get_minus_operator()), ec); + if (ec) {return path_expression_type();} + ++p_; + ++column_; + break; + case '*': + state_stack_.emplace_back(path_state::path_or_literal_or_function); + push_token(resources, token_type(resources.get_mult_operator()), ec); + if (ec) {return path_expression_type();} + ++p_; + ++column_; + break; + case '/': + state_stack_.emplace_back(path_state::path_or_literal_or_function); + push_token(resources, token_type(resources.get_div_operator()), ec); + if (ec) {return path_expression_type();} + ++p_; + ++column_; + break; + case '%': + state_stack_.emplace_back(path_state::path_or_literal_or_function); + push_token(resources, token_type(resources.get_modulus_operator()), ec); + if (ec) {return path_expression_type();} + ++p_; + ++column_; + break; + case ']': + case ',': + state_stack_.pop_back(); + break; + default: + ec = jsonpath_errc::expected_separator; + return path_expression_type(); + }; + break; + case path_state::expect_or: + { + switch (*p_) + { + case '|': + push_token(resources, token_type(resources.get_or_operator()), ec); + if (ec) {return path_expression_type();} + state_stack_.pop_back(); + ++p_; + ++column_; + break; + default: + ec = jsonpath_errc::expected_or; + return path_expression_type(); + } + break; + } + case path_state::expect_and: + { + switch(*p_) + { + case '&': + push_token(resources, token_type(resources.get_and_operator()), ec); + if (ec) {return path_expression_type();} + state_stack_.pop_back(); // expect_and + ++p_; + ++column_; + break; + default: + ec = jsonpath_errc::expected_and; + return path_expression_type(); + } + break; + } + case path_state::comparator_expression: + switch(*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(); + break; + case '<': + ++p_; + ++column_; + state_stack_.back() = path_state::path_or_literal_or_function; + state_stack_.emplace_back(path_state::cmp_lt_or_lte); + break; + case '>': + ++p_; + ++column_; + state_stack_.back() = path_state::path_or_literal_or_function; + state_stack_.emplace_back(path_state::cmp_gt_or_gte); + break; + default: + if (state_stack_.size() > 1) + { + state_stack_.pop_back(); + } + else + { + ec = jsonpath_errc::syntax_error; + return path_expression_type(); + } + break; + } + break; + case path_state::eq_or_regex: + switch(*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(); + break; + case '=': + { + push_token(resources, token_type(resources.get_eq_operator()), ec); + if (ec) {return path_expression_type();} + state_stack_.back() = path_state::path_or_literal_or_function; + ++p_; + ++column_; + break; + } + case '~': + { + ++p_; + ++column_; + state_stack_.emplace_back(path_state::expect_regex); + break; + } + default: + if (state_stack_.size() > 1) + { + state_stack_.pop_back(); + } + else + { + ec = jsonpath_errc::syntax_error; + return path_expression_type(); + } + break; + } + break; + case path_state::expect_regex: + switch (*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(); + break; + case '/': + state_stack_.back() = path_state::regex; + state_stack_.emplace_back(path_state::regex_options); + state_stack_.emplace_back(path_state::regex_pattern); + ++p_; + ++column_; + break; + default: + ec = jsonpath_errc::expected_forward_slash; + return path_expression_type(); + }; + break; + case path_state::regex: + { + std::regex::flag_type options = std::regex_constants::ECMAScript; + if (buffer2.find('i') != string_type::npos) + { + options |= std::regex_constants::icase; + } + std::basic_regex pattern(buffer, options); + push_token(resources, resources.get_regex_operator(std::move(pattern)), ec); + if (ec) {return path_expression_type();} + buffer.clear(); + buffer2.clear(); + state_stack_.pop_back(); + break; + } + case path_state::regex_pattern: + { + switch (*p_) + { + case '/': + { + state_stack_.pop_back(); + ++p_; + ++column_; + } + break; + + default: + buffer.push_back(*p_); + ++p_; + ++column_; + break; + } + break; + } + case path_state::regex_options: + { + if (*p_ == 'i') + { + buffer2.push_back(*p_); + ++p_; + ++column_; + } + else + { + state_stack_.pop_back(); + } + break; + } + case path_state::cmp_lt_or_lte: + { + switch(*p_) + { + case '=': + push_token(resources, token_type(resources.get_lte_operator()), ec); + if (ec) {return path_expression_type();} + state_stack_.pop_back(); + ++p_; + ++column_; + break; + default: + push_token(resources, token_type(resources.get_lt_operator()), ec); + if (ec) {return path_expression_type();} + state_stack_.pop_back(); + break; + } + break; + } + case path_state::cmp_gt_or_gte: + { + switch(*p_) + { + case '=': + push_token(resources, token_type(resources.get_gte_operator()), ec); + if (ec) {return path_expression_type();} + state_stack_.pop_back(); + ++p_; + ++column_; + break; + default: + //std::cout << "Parse: gt_operator\n"; + push_token(resources, token_type(resources.get_gt_operator()), ec); + if (ec) {return path_expression_type();} + state_stack_.pop_back(); + break; + } + break; + } + case path_state::cmp_ne: + { + switch(*p_) + { + case '=': + push_token(resources, token_type(resources.get_ne_operator()), ec); + if (ec) {return path_expression_type();} + state_stack_.pop_back(); + ++p_; + ++column_; + break; + default: + ec = jsonpath_errc::expected_comparator; + return path_expression_type(); + } + break; + } + case path_state::identifier: + push_token(resources, token_type(resources.new_selector(identifier_selector(buffer))), ec); + if (ec) {return path_expression_type();} + buffer.clear(); + state_stack_.pop_back(); + break; + case path_state::single_quoted_string: + switch (*p_) + { + case '\'': + state_stack_.pop_back(); + ++p_; + ++column_; + break; + case '\\': + state_stack_.emplace_back(path_state::quoted_string_escape_char); + ++p_; + ++column_; + break; + default: + buffer.push_back(*p_); + ++p_; + ++column_; + break; + }; + break; + case path_state::double_quoted_string: + switch (*p_) + { + case '\"': + state_stack_.pop_back(); + ++p_; + ++column_; + break; + case '\\': + state_stack_.emplace_back(path_state::quoted_string_escape_char); + ++p_; + ++column_; + break; + default: + buffer.push_back(*p_); + ++p_; + ++column_; + break; + }; + break; + case path_state::comma_or_rbracket: + switch (*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(); + break; + case ',': + state_stack_.back() = path_state::bracket_specifier_or_union; + ++p_; + ++column_; + break; + case ']': + state_stack_.pop_back(); + ++p_; + ++column_; + break; + default: + ec = jsonpath_errc::expected_comma_or_rbracket; + return path_expression_type(); + } + break; + case path_state::expect_rbracket: + switch (*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(); + break; + case ']': + state_stack_.pop_back(); + ++p_; + ++column_; + break; + default: + ec = jsonpath_errc::expected_rbracket; + return path_expression_type(); + } + break; + case path_state::expect_rparen: + switch (*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(); + break; + case ')': + ++p_; + ++column_; + push_token(resources, rparen_arg, ec); + if (ec) {return path_expression_type();} + state_stack_.back() = path_state::expression_rhs; + break; + default: + ec = jsonpath_errc::expected_rparen; + return path_expression_type(); + } + break; + case path_state::bracket_specifier_or_union: + switch (*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(); + break; + case '(': + { + push_token(resources, token_type(begin_union_arg), ec); + push_token(resources, token_type(begin_expression_arg), ec); + push_token(resources, lparen_arg, ec); + if (ec) {return path_expression_type();} + state_stack_.back() = path_state::union_expression; // union + state_stack_.emplace_back(path_state::expression); + state_stack_.emplace_back(path_state::expect_rparen); + state_stack_.emplace_back(path_state::expression_rhs); + state_stack_.emplace_back(path_state::path_or_literal_or_function); + ++p_; + ++column_; + break; + } + case '?': + { + push_token(resources, token_type(begin_union_arg), ec); + push_token(resources, token_type(begin_filter_arg), ec); + if (ec) {return path_expression_type();} + state_stack_.back() = path_state::union_expression; // union + state_stack_.emplace_back(path_state::filter_expression); + state_stack_.emplace_back(path_state::expression_rhs); + state_stack_.emplace_back(path_state::path_or_literal_or_function); + ++p_; + ++column_; + break; + } + case '*': + state_stack_.back() = path_state::wildcard_or_union; + ++p_; + ++column_; + break; + case '\'': + state_stack_.back() = path_state::identifier_or_union; + state_stack_.push_back(path_state::single_quoted_string); + ++p_; + ++column_; + break; + case '\"': + state_stack_.back() = path_state::identifier_or_union; + state_stack_.push_back(path_state::double_quoted_string); + ++p_; + ++column_; + break; + case ':': // slice_expression + state_stack_.back() = path_state::index_or_slice_or_union; + break; + case '-':case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8':case '9': + state_stack_.back() = path_state::index_or_slice_or_union; + state_stack_.emplace_back(path_state::integer); + break; + case '$': + push_token(resources, token_type(begin_union_arg), ec); + push_token(resources, root_node_arg, ec); + if (ec) {return path_expression_type();} + state_stack_.back() = path_state::union_expression; // union + state_stack_.emplace_back(path_state::relative_location); + ++p_; + ++column_; + break; + case '@': + push_token(resources, token_type(begin_union_arg), ec); + push_token(resources, token_type(current_node_arg), ec); // ISSUE + push_token(resources, token_type(resources.new_selector(current_node_selector())), ec); + if (ec) {return path_expression_type();} + state_stack_.back() = path_state::union_expression; // union + state_stack_.emplace_back(path_state::relative_location); + ++p_; + ++column_; + break; + default: + ec = jsonpath_errc::expected_bracket_specifier_or_union; + return path_expression_type(); + } + break; + case path_state::union_element: + switch (*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(); + break; + case ':': // slice_expression + state_stack_.back() = path_state::index_or_slice; + break; + case '-':case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8':case '9': + state_stack_.back() = path_state::index_or_slice; + state_stack_.emplace_back(path_state::integer); + break; + case '(': + { + push_token(resources, token_type(begin_expression_arg), ec); + push_token(resources, lparen_arg, ec); + if (ec) {return path_expression_type();} + state_stack_.back() = path_state::expression; + state_stack_.emplace_back(path_state::expect_rparen); + state_stack_.emplace_back(path_state::expression_rhs); + state_stack_.emplace_back(path_state::path_or_literal_or_function); + ++p_; + ++column_; + break; + } + case '?': + { + push_token(resources, token_type(begin_filter_arg), ec); + if (ec) {return path_expression_type();} + state_stack_.back() = path_state::filter_expression; + state_stack_.emplace_back(path_state::expression_rhs); + state_stack_.emplace_back(path_state::path_or_literal_or_function); + ++p_; + ++column_; + break; + } + case '*': + push_token(resources, token_type(resources.new_selector(wildcard_selector())), ec); + if (ec) {return path_expression_type();} + state_stack_.back() = path_state::relative_location; + ++p_; + ++column_; + break; + case '$': + push_token(resources, token_type(root_node_arg), ec); + push_token(resources, token_type(resources.new_selector(root_selector(selector_id++))), ec); + if (ec) {return path_expression_type();} + state_stack_.back() = path_state::relative_location; + ++p_; + ++column_; + break; + case '@': + push_token(resources, token_type(current_node_arg), ec); // ISSUE + push_token(resources, token_type(resources.new_selector(current_node_selector())), ec); + if (ec) {return path_expression_type();} + state_stack_.back() = path_state::relative_location; + ++p_; + ++column_; + break; + case '\'': + state_stack_.back() = path_state::identifier; + state_stack_.push_back(path_state::single_quoted_string); + ++p_; + ++column_; + break; + case '\"': + state_stack_.back() = path_state::identifier; + state_stack_.push_back(path_state::double_quoted_string); + ++p_; + ++column_; + break; + default: + ec = jsonpath_errc::expected_bracket_specifier_or_union; + return path_expression_type(); + } + break; + + case path_state::integer: + switch(*p_) + { + case '-': + buffer.push_back(*p_); + state_stack_.back() = path_state::digit; + ++p_; + ++column_; + break; + default: + state_stack_.back() = path_state::digit; + break; + } + break; + case path_state::digit: + switch(*p_) + { + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8':case '9': + buffer.push_back(*p_); + ++p_; + ++column_; + break; + default: + state_stack_.pop_back(); // digit + break; + } + break; + case path_state::index_or_slice_or_union: + switch(*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(); + break; + case ']': + { + if (buffer.empty()) + { + ec = jsonpath_errc::invalid_number; + return path_expression_type(); + } + int64_t n{0}; + auto r = jsoncons::detail::to_integer(buffer.data(), buffer.size(), n); + if (!r) + { + ec = jsonpath_errc::invalid_number; + return path_expression_type(); + } + push_token(resources, token_type(resources.new_selector(index_selector(n))), ec); + if (ec) {return path_expression_type();} + buffer.clear(); + state_stack_.pop_back(); // index_or_slice_or_union + ++p_; + ++column_; + break; + } + case ',': + { + push_token(resources, token_type(begin_union_arg), ec); + if (ec) {return path_expression_type();} + if (buffer.empty()) + { + ec = jsonpath_errc::invalid_number; + return path_expression_type(); + } + else + { + int64_t n{0}; + auto r = jsoncons::detail::to_integer(buffer.data(), buffer.size(), n); + if (!r) + { + ec = jsonpath_errc::invalid_number; + return path_expression_type(); + } + push_token(resources, token_type(resources.new_selector(index_selector(n))), ec); + if (ec) {return path_expression_type();} + + buffer.clear(); + } + push_token(resources, token_type(separator_arg), ec); + if (ec) {return path_expression_type();} + buffer.clear(); + state_stack_.back() = path_state::union_expression; // union + state_stack_.emplace_back(path_state::union_element); + ++p_; + ++column_; + break; + } + case ':': + { + if (!buffer.empty()) + { + int64_t n{0}; + auto r = jsoncons::detail::to_integer(buffer.data(), buffer.size(), n); + if (!r) + { + ec = jsonpath_errc::invalid_number; + return path_expression_type(); + } + slic.start_ = n; + buffer.clear(); + } + push_token(resources, token_type(begin_union_arg), ec); + if (ec) {return path_expression_type();} + state_stack_.back() = path_state::union_expression; // union + state_stack_.emplace_back(path_state::slice_expression_stop); + state_stack_.emplace_back(path_state::integer); + ++p_; + ++column_; + break; + } + default: + ec = jsonpath_errc::expected_rbracket; + return path_expression_type(); + } + break; + case path_state::slice_expression_stop: + { + if (!buffer.empty()) + { + int64_t n{0}; + auto r = jsoncons::detail::to_integer(buffer.data(), buffer.size(), n); + if (!r) + { + ec = jsonpath_errc::invalid_number; + return path_expression_type(); + } + slic.stop_ = jsoncons::optional(n); + buffer.clear(); + } + switch(*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(); + break; + case ']': + case ',': + push_token(resources, token_type(resources.new_selector(slice_selector(slic))), ec); + if (ec) {return path_expression_type();} + slic = slice{}; + state_stack_.pop_back(); // bracket_specifier2 + break; + case ':': + state_stack_.back() = path_state::slice_expression_step; + state_stack_.emplace_back(path_state::integer); + ++p_; + ++column_; + break; + default: + ec = jsonpath_errc::expected_rbracket; + return path_expression_type(); + } + break; + } + case path_state::slice_expression_step: + { + if (!buffer.empty()) + { + int64_t n{0}; + auto r = jsoncons::detail::to_integer(buffer.data(), buffer.size(), n); + if (!r) + { + ec = jsonpath_errc::invalid_number; + return path_expression_type(); + } + if (n == 0) + { + ec = jsonpath_errc::step_cannot_be_zero; + return path_expression_type(); + } + slic.step_ = n; + buffer.clear(); + } + switch(*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(); + break; + case ']': + case ',': + push_token(resources, token_type(resources.new_selector(slice_selector(slic))), ec); + if (ec) {return path_expression_type();} + buffer.clear(); + slic = slice{}; + state_stack_.pop_back(); // slice_expression_step + break; + default: + ec = jsonpath_errc::expected_rbracket; + return path_expression_type(); + } + break; + } + + case path_state::bracketed_unquoted_name_or_union: + switch (*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(); + break; + case ']': + push_token(resources, token_type(resources.new_selector(identifier_selector(buffer))), ec); + if (ec) {return path_expression_type();} + buffer.clear(); + state_stack_.pop_back(); + ++p_; + ++column_; + break; + case '.': + push_token(resources, token_type(begin_union_arg), ec); + push_token(resources, token_type(resources.new_selector(identifier_selector(buffer))), ec); + if (ec) {return path_expression_type();} + buffer.clear(); + state_stack_.back() = path_state::union_expression; // union + state_stack_.emplace_back(path_state::relative_path); + ++p_; + ++column_; + break; + case '[': + push_token(resources, token_type(begin_union_arg), ec); + push_token(resources, token_type(resources.new_selector(identifier_selector(buffer))), ec); + if (ec) {return path_expression_type();} + state_stack_.back() = path_state::union_expression; // union + state_stack_.emplace_back(path_state::relative_path); + ++p_; + ++column_; + break; + case ',': + push_token(resources, token_type(begin_union_arg), ec); + push_token(resources, token_type(resources.new_selector(identifier_selector(buffer))), ec); + push_token(resources, token_type(separator_arg), ec); + if (ec) {return path_expression_type();} + buffer.clear(); + state_stack_.back() = path_state::union_expression; // union + state_stack_.emplace_back(path_state::relative_path); + ++p_; + ++column_; + break; + default: + buffer.push_back(*p_); + ++p_; + ++column_; + break; + } + break; + case path_state::union_expression: + switch (*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(); + break; + case '.': + state_stack_.emplace_back(path_state::relative_path); + ++p_; + ++column_; + break; + case '[': + state_stack_.emplace_back(path_state::bracket_specifier_or_union); + ++p_; + ++column_; + break; + case ',': + push_token(resources, token_type(separator_arg), ec); + if (ec) {return path_expression_type();} + state_stack_.emplace_back(path_state::union_element); + ++p_; + ++column_; + break; + case ']': + push_token(resources, token_type(end_union_arg), ec); + if (ec) {return path_expression_type();} + state_stack_.pop_back(); + ++p_; + ++column_; + break; + default: + ec = jsonpath_errc::expected_rbracket; + return path_expression_type(); + } + break; + case path_state::identifier_or_union: + switch (*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(); + break; + case ']': + push_token(resources, token_type(resources.new_selector(identifier_selector(buffer))), ec); + if (ec) {return path_expression_type();} + buffer.clear(); + state_stack_.pop_back(); + ++p_; + ++column_; + break; + case ',': + push_token(resources, token_type(begin_union_arg), ec); + push_token(resources, token_type(resources.new_selector(identifier_selector(buffer))), ec); + push_token(resources, token_type(separator_arg), ec); + if (ec) {return path_expression_type();} + buffer.clear(); + state_stack_.back() = path_state::union_expression; // union + state_stack_.emplace_back(path_state::union_element); + ++p_; + ++column_; + break; + default: + ec = jsonpath_errc::expected_rbracket; + return path_expression_type(); + } + break; + case path_state::bracketed_wildcard: + switch (*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(); + break; + case '[': + case ']': + case ',': + case '.': + push_token(resources, token_type(resources.new_selector(wildcard_selector())), ec); + if (ec) {return path_expression_type();} + buffer.clear(); + state_stack_.pop_back(); + break; + default: + ec = jsonpath_errc::expected_rbracket; + return path_expression_type(); + } + break; + case path_state::index_or_slice: + switch(*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(); + break; + case ',': + case ']': + { + if (buffer.empty()) + { + ec = jsonpath_errc::invalid_number; + return path_expression_type(); + } + else + { + int64_t n{0}; + auto r = jsoncons::detail::to_integer(buffer.data(), buffer.size(), n); + if (!r) + { + ec = jsonpath_errc::invalid_number; + return path_expression_type(); + } + push_token(resources, token_type(resources.new_selector(index_selector(n))), ec); + if (ec) {return path_expression_type();} + + buffer.clear(); + } + state_stack_.pop_back(); // bracket_specifier + break; + } + case ':': + { + if (!buffer.empty()) + { + int64_t n{0}; + auto r = jsoncons::detail::to_integer(buffer.data(), buffer.size(), n); + if (!r) + { + ec = jsonpath_errc::invalid_number; + return path_expression_type(); + } + slic.start_ = n; + buffer.clear(); + } + state_stack_.back() = path_state::slice_expression_stop; + state_stack_.emplace_back(path_state::integer); + ++p_; + ++column_; + break; + } + default: + ec = jsonpath_errc::expected_rbracket; + return path_expression_type(); + } + break; + case path_state::wildcard_or_union: + switch (*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(); + break; + case ']': + push_token(resources, token_type(resources.new_selector(wildcard_selector())), ec); + if (ec) {return path_expression_type();} + buffer.clear(); + state_stack_.pop_back(); + ++p_; + ++column_; + break; + case ',': + push_token(resources, token_type(begin_union_arg), ec); + push_token(resources, token_type(resources.new_selector(wildcard_selector())), ec); + push_token(resources, token_type(separator_arg), ec); + if (ec) {return path_expression_type();} + buffer.clear(); + state_stack_.back() = path_state::union_expression; // union + state_stack_.emplace_back(path_state::union_element); + ++p_; + ++column_; + break; + default: + ec = jsonpath_errc::expected_rbracket; + return path_expression_type(); + } + break; + case path_state::quoted_string_escape_char: + switch (*p_) + { + case '\"': + buffer.push_back('\"'); + ++p_; + ++column_; + state_stack_.pop_back(); + break; + case '\'': + buffer.push_back('\''); + ++p_; + ++column_; + state_stack_.pop_back(); + break; + case '\\': + buffer.push_back('\\'); + ++p_; + ++column_; + state_stack_.pop_back(); + break; + case '/': + buffer.push_back('/'); + ++p_; + ++column_; + state_stack_.pop_back(); + break; + case 'b': + buffer.push_back('\b'); + ++p_; + ++column_; + state_stack_.pop_back(); + break; + case 'f': + buffer.push_back('\f'); + ++p_; + ++column_; + state_stack_.pop_back(); + break; + case 'n': + buffer.push_back('\n'); + ++p_; + ++column_; + state_stack_.pop_back(); + break; + case 'r': + buffer.push_back('\r'); + ++p_; + ++column_; + state_stack_.pop_back(); + break; + case 't': + buffer.push_back('\t'); + ++p_; + ++column_; + state_stack_.pop_back(); + break; + case 'u': + ++p_; + ++column_; + state_stack_.back() = path_state::escape_u1; + break; + default: + ec = jsonpath_errc::illegal_escaped_character; + return path_expression_type(); + } + break; + case path_state::escape_u1: + cp = append_to_codepoint(0, *p_, ec); + if (ec) + { + return path_expression_type(); + } + ++p_; + ++column_; + state_stack_.back() = path_state::escape_u2; + break; + case path_state::escape_u2: + cp = append_to_codepoint(cp, *p_, ec); + if (ec) + { + return path_expression_type(); + } + ++p_; + ++column_; + state_stack_.back() = path_state::escape_u3; + break; + case path_state::escape_u3: + cp = append_to_codepoint(cp, *p_, ec); + if (ec) + { + return path_expression_type(); + } + ++p_; + ++column_; + state_stack_.back() = path_state::escape_u4; + break; + case path_state::escape_u4: + cp = append_to_codepoint(cp, *p_, ec); + if (ec) + { + return path_expression_type(); + } + if (unicode_traits::is_high_surrogate(cp)) + { + ++p_; + ++column_; + state_stack_.back() = path_state::escape_expect_surrogate_pair1; + } + else + { + unicode_traits::convert(&cp, 1, buffer); + ++p_; + ++column_; + state_stack_.pop_back(); + } + break; + case path_state::escape_expect_surrogate_pair1: + switch (*p_) + { + case '\\': + ++p_; + ++column_; + state_stack_.back() = path_state::escape_expect_surrogate_pair2; + break; + default: + ec = jsonpath_errc::invalid_codepoint; + return path_expression_type(); + } + break; + case path_state::escape_expect_surrogate_pair2: + switch (*p_) + { + case 'u': + ++p_; + ++column_; + state_stack_.back() = path_state::escape_u5; + break; + default: + ec = jsonpath_errc::invalid_codepoint; + return path_expression_type(); + } + break; + case path_state::escape_u5: + cp2 = append_to_codepoint(0, *p_, ec); + if (ec) + { + return path_expression_type(); + } + ++p_; + ++column_; + state_stack_.back() = path_state::escape_u6; + break; + case path_state::escape_u6: + cp2 = append_to_codepoint(cp2, *p_, ec); + if (ec) + { + return path_expression_type(); + } + ++p_; + ++column_; + state_stack_.back() = path_state::escape_u7; + break; + case path_state::escape_u7: + cp2 = append_to_codepoint(cp2, *p_, ec); + if (ec) + { + return path_expression_type(); + } + ++p_; + ++column_; + state_stack_.back() = path_state::escape_u8; + break; + case path_state::escape_u8: + { + cp2 = append_to_codepoint(cp2, *p_, ec); + if (ec) + { + return path_expression_type(); + } + uint32_t codepoint = 0x10000 + ((cp & 0x3FF) << 10) + (cp2 & 0x3FF); + unicode_traits::convert(&codepoint, 1, buffer); + state_stack_.pop_back(); + ++p_; + ++column_; + break; + } + case path_state::filter_expression: + { + switch(*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(); + break; + case ',': + case ']': + { + push_token(resources, token_type(end_filter_arg), ec); + if (ec) {return path_expression_type();} + state_stack_.pop_back(); + break; + } + default: + ec = jsonpath_errc::expected_comma_or_rbracket; + return path_expression_type(); + } + break; + } + case path_state::expression: + { + switch(*p_) + { + case ' ':case '\t':case '\r':case '\n': + advance_past_space_character(); + break; + case ',': + case ']': + { + push_token(resources, token_type(end_index_expression_arg), ec); + if (ec) {return path_expression_type();} + state_stack_.pop_back(); + break; + } + default: + ec = jsonpath_errc::expected_comma_or_rbracket; + return path_expression_type(); + } + break; + } + default: + ++p_; + ++column_; + break; + } + } + + if (state_stack_.empty()) + { + ec = jsonpath_errc::syntax_error; + return path_expression_type(); + } + + while (state_stack_.size() > 1) + { + switch (state_stack_.back()) + { + case path_state::name_or_lbracket: + state_stack_.back() = path_state::relative_path; + break; + case path_state::relative_path: + state_stack_.back() = path_state::identifier_or_function_expr; + state_stack_.emplace_back(path_state::unquoted_string); + break; + case path_state::identifier_or_function_expr: + if (!buffer.empty()) // Can't be quoted string + { + push_token(resources, token_type(resources.new_selector(identifier_selector(buffer))), ec); + if (ec) {return path_expression_type();} + } + state_stack_.pop_back(); + break; + case path_state::unquoted_string: + state_stack_.pop_back(); // unquoted_string + break; + case path_state::relative_location: + state_stack_.pop_back(); + break; + case path_state::identifier: + if (!buffer.empty()) // Can't be quoted string + { + push_token(resources, token_type(resources.new_selector(identifier_selector(buffer))), ec); + if (ec) {return path_expression_type();} + } + state_stack_.pop_back(); + break; + case path_state::parent_operator: + { + push_token(resources, token_type(resources.new_selector(parent_node_selector(ancestor_depth))), ec); + if (ec) { return path_expression_type(); } + paths_required = true; + state_stack_.pop_back(); + break; + } + case path_state::ancestor_depth: + state_stack_.pop_back(); + break; + default: + ec = jsonpath_errc::syntax_error; + return path_expression_type(); + } + } + + if (state_stack_.size() > 2) + { + ec = jsonpath_errc::unexpected_eof; + return path_expression_type(); + } + + //std::cout << "\nTokens\n\n"; + //for (const auto& tok : output_stack_) + //{ + // std::cout << tok.to_string() << "\n"; + //} + //std::cout << "\n"; + + if (output_stack_.empty() || !operator_stack_.empty()) + { + ec = jsonpath_errc::unexpected_eof; + return path_expression_type(); + } + + return path_expression_type(output_stack_.back().selector_, paths_required); + } + + void advance_past_space_character() + { + switch (*p_) + { + case ' ':case '\t': + ++p_; + ++column_; + break; + case '\r': + if (p_+1 < end_input_ && *(p_+1) == '\n') + ++p_; + ++line_; + column_ = 1; + ++p_; + break; + case '\n': + ++line_; + column_ = 1; + ++p_; + break; + default: + break; + } + } + + void unwind_rparen(std::error_code& ec) + { + auto it = operator_stack_.rbegin(); + while (it != operator_stack_.rend() && !it->is_lparen()) + { + output_stack_.emplace_back(std::move(*it)); + ++it; + } + if (it == operator_stack_.rend()) + { + ec = jsonpath_errc::unbalanced_parentheses; + return; + } + ++it; + operator_stack_.erase(it.base(),operator_stack_.end()); + } + + void push_token(jsoncons::jsonpath::detail::static_resources& resources, token_type&& tok, std::error_code& ec) + { + //std::cout << tok.to_string() << "\n"; + switch (tok.token_kind()) + { + case jsonpath_token_kind::begin_filter: + output_stack_.emplace_back(std::move(tok)); + operator_stack_.emplace_back(token_type(lparen_arg)); + break; + case jsonpath_token_kind::end_filter: + { + //std::cout << "push_token end_filter 1\n"; + //for (const auto& tok2 : output_stack_) + //{ + // std::cout << tok2.to_string() << "\n"; + //} + //std::cout << "\n\n"; + unwind_rparen(ec); + if (ec) + { + return; + } + std::vector toks; + auto it = output_stack_.rbegin(); + while (it != output_stack_.rend() && it->token_kind() != jsonpath_token_kind::begin_filter) + { + toks.emplace_back(std::move(*it)); + ++it; + } + if (it == output_stack_.rend()) + { + ec = jsonpath_errc::unbalanced_parentheses; + return; + } + std::reverse(toks.begin(), toks.end()); + ++it; + output_stack_.erase(it.base(),output_stack_.end()); + + if (!output_stack_.empty() && output_stack_.back().is_path()) + { + output_stack_.back().selector_->append_selector(resources.new_selector(filter_selector(expression_type(std::move(toks))))); + } + else + { + output_stack_.emplace_back(token_type(resources.new_selector(filter_selector(expression_type(std::move(toks)))))); + } + //std::cout << "push_token end_filter 2\n"; + //for (const auto& tok2 : output_stack_) + //{ + // std::cout << tok2.to_string() << "\n"; + //} + //std::cout << "\n\n"; + break; + } + case jsonpath_token_kind::begin_expression: + //std::cout << "begin_expression\n"; + output_stack_.emplace_back(std::move(tok)); + operator_stack_.emplace_back(token_type(lparen_arg)); + break; + case jsonpath_token_kind::end_index_expression: + { + //std::cout << "jsonpath_token_kind::end_index_expression\n"; + //for (const auto& t : output_stack_) + //{ + // std::cout << t.to_string() << "\n"; + //} + //std::cout << "/jsonpath_token_kind::end_index_expression\n"; + unwind_rparen(ec); + if (ec) + { + return; + } + std::vector toks; + auto it = output_stack_.rbegin(); + while (it != output_stack_.rend() && it->token_kind() != jsonpath_token_kind::begin_expression) + { + toks.emplace_back(std::move(*it)); + ++it; + } + if (it == output_stack_.rend()) + { + ec = jsonpath_errc::unbalanced_parentheses; + return; + } + std::reverse(toks.begin(), toks.end()); + ++it; + output_stack_.erase(it.base(),output_stack_.end()); + + if (!output_stack_.empty() && output_stack_.back().is_path()) + { + output_stack_.back().selector_->append_selector(resources.new_selector(index_expression_selector(expression_type(std::move(toks))))); + } + else + { + output_stack_.emplace_back(token_type(resources.new_selector(index_expression_selector(expression_type(std::move(toks)))))); + } + break; + } + case jsonpath_token_kind::end_argument_expression: + { + //std::cout << "jsonpath_token_kind::end_index_expression\n"; + //for (const auto& t : output_stack_) + //{ + // std::cout << t.to_string() << "\n"; + //} + //std::cout << "/jsonpath_token_kind::end_index_expression\n"; + unwind_rparen(ec); + if (ec) + { + return; + } + std::vector toks; + auto it = output_stack_.rbegin(); + while (it != output_stack_.rend() && it->token_kind() != jsonpath_token_kind::begin_expression) + { + toks.emplace_back(std::move(*it)); + ++it; + } + if (it == output_stack_.rend()) + { + ec = jsonpath_errc::unbalanced_parentheses; + return; + } + std::reverse(toks.begin(), toks.end()); + ++it; + output_stack_.erase(it.base(),output_stack_.end()); + output_stack_.emplace_back(token_type(jsoncons::make_unique(std::move(toks)))); + break; + } + case jsonpath_token_kind::selector: + { + if (!output_stack_.empty() && output_stack_.back().is_path()) + { + output_stack_.back().selector_->append_selector(std::move(tok.selector_)); + } + else + { + output_stack_.emplace_back(std::move(tok)); + } + break; + } + case jsonpath_token_kind::separator: + output_stack_.emplace_back(std::move(tok)); + break; + case jsonpath_token_kind::begin_union: + output_stack_.emplace_back(std::move(tok)); + break; + case jsonpath_token_kind::end_union: + { + std::vector expressions; + auto it = output_stack_.rbegin(); + while (it != output_stack_.rend() && it->token_kind() != jsonpath_token_kind::begin_union) + { + if (it->token_kind() == jsonpath_token_kind::selector) + { + expressions.emplace_back(std::move(it->selector_)); + } + do + { + ++it; + } + while (it != output_stack_.rend() && it->token_kind() != jsonpath_token_kind::begin_union && it->token_kind() != jsonpath_token_kind::separator); + if (it->token_kind() == jsonpath_token_kind::separator) + { + ++it; + } + } + if (it == output_stack_.rend()) + { + ec = jsonpath_errc::unbalanced_parentheses; + return; + } + std::reverse(expressions.begin(), expressions.end()); + ++it; + output_stack_.erase(it.base(),output_stack_.end()); + + if (!output_stack_.empty() && output_stack_.back().is_path()) + { + output_stack_.back().selector_->append_selector(resources.new_selector(union_selector(std::move(expressions)))); + } + else + { + output_stack_.emplace_back(token_type(resources.new_selector(union_selector(std::move(expressions))))); + } + break; + } + case jsonpath_token_kind::lparen: + operator_stack_.emplace_back(std::move(tok)); + break; + case jsonpath_token_kind::rparen: + { + unwind_rparen(ec); + break; + } + case jsonpath_token_kind::end_function: + { + //std::cout << "jsonpath_token_kind::end_function\n"; + unwind_rparen(ec); + if (ec) + { + return; + } + std::vector toks; + auto it = output_stack_.rbegin(); + std::size_t arg_count = 0; + while (it != output_stack_.rend() && it->token_kind() != jsonpath_token_kind::function) + { + if (it->token_kind() == jsonpath_token_kind::argument) + { + ++arg_count; + } + toks.emplace_back(std::move(*it)); + ++it; + } + if (it == output_stack_.rend()) + { + ec = jsonpath_errc::unbalanced_parentheses; + return; + } + std::reverse(toks.begin(), toks.end()); + if (it->arity() && arg_count != *(it->arity())) + { + ec = jsonpath_errc::invalid_arity; + return; + } + toks.push_back(std::move(*it)); + ++it; + output_stack_.erase(it.base(),output_stack_.end()); + + if (!output_stack_.empty() && output_stack_.back().is_path()) + { + output_stack_.back().selector_->append_selector(resources.new_selector(function_selector(expression_type(std::move(toks))))); + } + else + { + output_stack_.emplace_back(token_type(resources.new_selector(function_selector(std::move(toks))))); + } + break; + } + case jsonpath_token_kind::literal: + if (!output_stack_.empty() && (output_stack_.back().token_kind() == jsonpath_token_kind::current_node || output_stack_.back().token_kind() == jsonpath_token_kind::root_node)) + { + output_stack_.back() = std::move(tok); + } + else + { + output_stack_.emplace_back(std::move(tok)); + } + break; + case jsonpath_token_kind::function: + output_stack_.emplace_back(std::move(tok)); + operator_stack_.emplace_back(token_type(lparen_arg)); + break; + case jsonpath_token_kind::argument: + output_stack_.emplace_back(std::move(tok)); + break; + case jsonpath_token_kind::root_node: + case jsonpath_token_kind::current_node: + output_stack_.emplace_back(std::move(tok)); + break; + case jsonpath_token_kind::unary_operator: + case jsonpath_token_kind::binary_operator: + { + if (operator_stack_.empty() || operator_stack_.back().is_lparen()) + { + operator_stack_.emplace_back(std::move(tok)); + } + else if (tok.precedence_level() < operator_stack_.back().precedence_level() + || (tok.precedence_level() == operator_stack_.back().precedence_level() && tok.is_right_associative())) + { + operator_stack_.emplace_back(std::move(tok)); + } + else + { + auto it = operator_stack_.rbegin(); + while (it != operator_stack_.rend() && it->is_operator() + && (tok.precedence_level() > it->precedence_level() + || (tok.precedence_level() == it->precedence_level() && tok.is_right_associative()))) + { + output_stack_.emplace_back(std::move(*it)); + ++it; + } + + operator_stack_.erase(it.base(),operator_stack_.end()); + operator_stack_.emplace_back(std::move(tok)); + } + break; + } + default: + break; + } + //std::cout << " " << "Output Stack\n"; + //for (auto&& t : output_stack_) + //{ + // std::cout << t.to_string(2) << "\n"; + //} + //if (!operator_stack_.empty()) + //{ + // std::cout << " " << "Operator Stack\n"; + // for (auto&& t : operator_stack_) + // { + // std::cout << t.to_string(2) << "\n"; + // } + //} + } + + uint32_t append_to_codepoint(uint32_t cp, int c, std::error_code& ec) + { + cp *= 16; + if (c >= '0' && c <= '9') + { + cp += c - '0'; + } + else if (c >= 'a' && c <= 'f') + { + cp += c - 'a' + 10; + } + else if (c >= 'A' && c <= 'F') + { + cp += c - 'A' + 10; + } + else + { + ec = jsonpath_errc::invalid_codepoint; + } + return cp; + } + }; + + } // namespace detail + + template + class jsonpath_expression + { + public: + using evaluator_t = typename jsoncons::jsonpath::detail::jsonpath_evaluator; + using char_type = typename evaluator_t::char_type; + using string_type = typename evaluator_t::string_type; + using string_view_type = typename evaluator_t::string_view_type; + using value_type = typename evaluator_t::value_type; + using reference = typename evaluator_t::reference; + using parameter_type = parameter; + using json_selector_t = typename evaluator_t::path_expression_type; + using path_value_pair_type = typename evaluator_t::path_value_pair_type; + using json_location_type = typename evaluator_t::json_location_type; + using function_type = std::function, std::error_code& ec)>; + private: + jsoncons::jsonpath::detail::static_resources static_resources_; + json_selector_t expr_; + public: + jsonpath_expression(jsoncons::jsonpath::detail::static_resources&& resources, + json_selector_t&& expr) + : static_resources_(std::move(resources)), + expr_(std::move(expr)) + { + } + + jsonpath_expression(jsoncons::jsonpath::detail::static_resources&& resources, + json_selector_t&& expr, std::vector&& custom_functions) + : static_resources_(std::move(resources)), + expr_(std::move(expr), std::move(custom_functions)) + { + } + + template + typename std::enable_if::value,void>::type + evaluate(reference instance, BinaryCallback callback, result_options options = result_options()) + { + jsoncons::jsonpath::detail::dynamic_resources resources; + auto f = [&callback](const json_location_type& path, reference val) + { + callback(path.to_string(), val); + }; + expr_.evaluate(resources, instance, resources.root_path_node(), instance, f, options); + } + + Json evaluate(reference instance, result_options options = result_options()) + { + if ((options & result_options::path) == result_options::path) + { + jsoncons::jsonpath::detail::dynamic_resources resources; + + Json result(json_array_arg); + auto callback = [&result](const json_location_type& p, reference) + { + result.emplace_back(p.to_string()); + }; + expr_.evaluate(resources, instance, resources.root_path_node(), instance, callback, options); + return result; + } + else + { + jsoncons::jsonpath::detail::dynamic_resources resources; + return expr_.evaluate(resources, instance, resources.current_path_node(), instance, options); + } + } + + static jsonpath_expression compile(const string_view_type& path) + { + jsoncons::jsonpath::detail::static_resources resources; + + evaluator_t e; + json_selector_t expr = e.compile(resources, path); + return jsonpath_expression(std::move(resources), std::move(expr)); + } + + static jsonpath_expression compile(const string_view_type& path, std::error_code& ec) + { + jsoncons::jsonpath::detail::static_resources resources; + evaluator_t e; + json_selector_t expr = e.compile(resources, path, ec); + return jsonpath_expression(std::move(resources), std::move(expr)); + } + + static jsonpath_expression compile(const string_view_type& path, + const custom_functions& functions) + { + jsoncons::jsonpath::detail::static_resources resources(functions); + + evaluator_t e; + json_selector_t expr = e.compile(resources, path); + return jsonpath_expression(std::move(resources), std::move(expr)); + } + + static jsonpath_expression compile(const string_view_type& path, + const custom_functions& functions, + std::error_code& ec) + { + jsoncons::jsonpath::detail::static_resources resources(functions); + evaluator_t e; + json_selector_t expr = e.compile(resources, path, ec); + return jsonpath_expression(std::move(resources), std::move(expr)); + } + }; + + template + jsonpath_expression make_expression(const typename Json::string_view_type& expr, + const custom_functions& functions = custom_functions()) + { + return jsonpath_expression::compile(expr, functions); + } + + template + jsonpath_expression make_expression(const typename Json::string_view_type& expr, std::error_code& ec) + { + return jsonpath_expression::compile(expr, ec); + } + + template + jsonpath_expression make_expression(const typename Json::string_view_type& expr, + const custom_functions& functions, + std::error_code& ec) + { + return jsonpath_expression::compile(expr, functions, ec); + } + +} // namespace jsonpath +} // namespace jsoncons + +#endif diff --git a/include/jsoncons_ext/jsonpath/jsonpath_selector.hpp b/include/jsoncons_ext/jsonpath/jsonpath_selector.hpp new file mode 100644 index 0000000..e06d37c --- /dev/null +++ b/include/jsoncons_ext/jsonpath/jsonpath_selector.hpp @@ -0,0 +1,1322 @@ +// Copyright 2021 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSONPATH_JSONPATH_SELECTOR_HPP +#define JSONCONS_JSONPATH_JSONPATH_SELECTOR_HPP + +#include +#include +#include +#include // std::is_const +#include // std::numeric_limits +#include // std::move +#include +#include +#include +#include + +namespace jsoncons { +namespace jsonpath { +namespace detail { + + struct slice + { + jsoncons::optional start_; + jsoncons::optional stop_; + int64_t step_; + + slice() + : start_(), stop_(), step_(1) + { + } + + slice(const jsoncons::optional& start, const jsoncons::optional& end, int64_t step) + : start_(start), stop_(end), step_(step) + { + } + + slice(const slice& other) + : start_(other.start_), stop_(other.stop_), step_(other.step_) + { + } + + slice& operator=(const slice& rhs) + { + if (this != &rhs) + { + if (rhs.start_) + { + start_ = rhs.start_; + } + else + { + start_.reset(); + } + if (rhs.stop_) + { + stop_ = rhs.stop_; + } + else + { + stop_.reset(); + } + step_ = rhs.step_; + } + return *this; + } + + int64_t get_start(std::size_t size) const + { + if (start_) + { + auto len = *start_ >= 0 ? *start_ : (static_cast(size) + *start_); + return len <= static_cast(size) ? len : static_cast(size); + } + else + { + if (step_ >= 0) + { + return 0; + } + else + { + return static_cast(size); + } + } + } + + int64_t get_stop(std::size_t size) const + { + if (stop_) + { + auto len = *stop_ >= 0 ? *stop_ : (static_cast(size) + *stop_); + return len <= static_cast(size) ? len : static_cast(size); + } + else + { + return step_ >= 0 ? static_cast(size) : -1; + } + } + + int64_t step() const + { + return step_; // Allow negative + } + }; + + template + class json_array_receiver : public node_receiver + { + public: + using reference = JsonReference; + using char_type = typename Json::char_type; + using json_location_node_type = json_location_node; + + Json* val; + + json_array_receiver(Json* ptr) + : val(ptr) + { + } + + void add(const json_location_node_type&, reference value) override + { + val->emplace_back(value); + } + }; + + template + struct path_generator + { + using char_type = typename Json::char_type; + using json_location_node_type = json_location_node; + using string_type = std::basic_string; + + static const json_location_node_type& generate(dynamic_resources& resources, + const json_location_node_type& last, + std::size_t index, + result_options options) + { + const result_options require_path = result_options::path | result_options::nodups | result_options::sort; + if ((options & require_path) != result_options()) + { + return *resources.create_path_node(&last, index); + } + else + { + return last; + } + } + + static const json_location_node_type& generate(dynamic_resources& resources, + const json_location_node_type& last, + const string_type& identifier, + result_options options) + { + const result_options require_path = result_options::path | result_options::nodups | result_options::sort; + if ((options & require_path) != result_options()) + { + return *resources.create_path_node(&last, identifier); + } + else + { + return last; + } + } + }; + + template + class base_selector : public jsonpath_selector + { + using supertype = jsonpath_selector; + + supertype* tail_; + public: + using value_type = typename supertype::value_type; + using reference = typename supertype::reference; + using pointer = typename supertype::pointer; + using path_value_pair_type = typename supertype::path_value_pair_type; + using json_location_node_type = typename supertype::json_location_node_type; + using json_location_type = typename supertype::json_location_type; + using node_receiver_type = typename supertype::node_receiver_type; + using selector_type = typename supertype::selector_type; + + base_selector() + : supertype(true, 11), tail_(nullptr) + { + } + + base_selector(bool is_path, std::size_t precedence_level) + : supertype(is_path, precedence_level), tail_(nullptr) + { + } + + void append_selector(selector_type* expr) override + { + if (!tail_) + { + tail_ = expr; + } + else + { + tail_->append_selector(expr); + } + } + + void tail_select(dynamic_resources& resources, + reference root, + const json_location_node_type& last, + reference current, + node_receiver_type& receiver, + result_options options) const + { + if (!tail_) + { + receiver.add(last, current); + } + else + { + tail_->select(resources, root, last, current, receiver, options); + } + } + + reference evaluate_tail(dynamic_resources& resources, + reference root, + const json_location_node_type& last, + reference current, + result_options options, + std::error_code& ec) const + { + if (!tail_) + { + return current; + } + else + { + return tail_->evaluate(resources, root, last, current, options, ec); + } + } + + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + if (tail_) + { + s.append(tail_->to_string(level)); + } + return s; + } + }; + + template + class identifier_selector final : public base_selector + { + using supertype = base_selector; + using path_generator_type = path_generator; + public: + using value_type = typename supertype::value_type; + using reference = typename supertype::reference; + using pointer = typename supertype::pointer; + using path_value_pair_type = typename supertype::path_value_pair_type; + using json_location_node_type = typename supertype::json_location_node_type; + using char_type = typename Json::char_type; + using string_type = std::basic_string; + using string_view_type = basic_string_view; + using node_receiver_type = typename supertype::node_receiver_type; + private: + string_type identifier_; + public: + + identifier_selector(const string_view_type& identifier) + : base_selector(), identifier_(identifier) + { + } + + void select(dynamic_resources& resources, + reference root, + const json_location_node_type& last, + reference current, + node_receiver_type& receiver, + result_options options) const override + { + //std::string buf; + //buf.append("identifier selector: "); + //unicode_traits::convert(identifier_.data(),identifier_.size(),buf); + + static const char_type length_name[] = {'l', 'e', 'n', 'g', 't', 'h', 0}; + + if (current.is_object()) + { + auto it = current.find(identifier_); + if (it != current.object_range().end()) + { + this->tail_select(resources, root, + path_generator_type::generate(resources, last, identifier_, options), + it->value(), receiver, options); + } + } + else if (current.is_array()) + { + int64_t n{0}; + auto r = jsoncons::detail::to_integer_decimal(identifier_.data(), identifier_.size(), n); + if (r) + { + std::size_t index = (n >= 0) ? static_cast(n) : static_cast(static_cast(current.size()) + n); + if (index < current.size()) + { + this->tail_select(resources, root, + path_generator_type::generate(resources, last, index, options), + current[index], receiver, options); + } + } + else if (identifier_ == length_name && current.size() > 0) + { + pointer ptr = resources.create_json(current.size()); + this->tail_select(resources, root, + path_generator_type::generate(resources, last, identifier_, options), + *ptr, + receiver, options); + } + } + else if (current.is_string() && identifier_ == length_name) + { + string_view_type sv = current.as_string_view(); + std::size_t count = unicode_traits::count_codepoints(sv.data(), sv.size()); + pointer ptr = resources.create_json(count); + this->tail_select(resources, root, + path_generator_type::generate(resources, last, identifier_, options), + *ptr, receiver, options); + } + //std::cout << "end identifier_selector\n"; + } + + reference evaluate(dynamic_resources& resources, + reference root, + const json_location_node_type& last, + reference current, + result_options options, + std::error_code& ec) const override + { + static const char_type length_name[] = {'l', 'e', 'n', 'g', 't', 'h', 0}; + + if (current.is_object()) + { + auto it = current.find(identifier_); + if (it != current.object_range().end()) + { + return this->evaluate_tail(resources, root, + path_generator_type::generate(resources, last, identifier_, options), + it->value(), options, ec); + } + else + { + return resources.null_value(); + } + } + else if (current.is_array()) + { + int64_t n{0}; + auto r = jsoncons::detail::to_integer_decimal(identifier_.data(), identifier_.size(), n); + if (r) + { + std::size_t index = (n >= 0) ? static_cast(n) : static_cast(static_cast(current.size()) + n); + if (index < current.size()) + { + return this->evaluate_tail(resources, root, + path_generator_type::generate(resources, last, index, options), + current[index], options, ec); + } + else + { + return resources.null_value(); + } + } + else if (identifier_ == length_name && current.size() > 0) + { + pointer ptr = resources.create_json(current.size()); + return this->evaluate_tail(resources, root, + path_generator_type::generate(resources, last, identifier_, options), + *ptr, + options, ec); + } + else + { + return resources.null_value(); + } + } + else if (current.is_string() && identifier_ == length_name) + { + string_view_type sv = current.as_string_view(); + std::size_t count = unicode_traits::count_codepoints(sv.data(), sv.size()); + pointer ptr = resources.create_json(count); + return this->evaluate_tail(resources, root, + path_generator_type::generate(resources, last, identifier_, options), + *ptr, options, ec); + } + else + { + return resources.null_value(); + } + } + + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("identifier selector "); + unicode_traits::convert(identifier_.data(),identifier_.size(),s); + s.append(base_selector::to_string(level+1)); + //s.append("\n"); + + return s; + } + }; + + template + class root_selector final : public base_selector + { + using supertype = base_selector; + using path_generator_type = path_generator; + + std::size_t id_; + public: + using value_type = typename supertype::value_type; + using reference = typename supertype::reference; + using pointer = typename supertype::pointer; + using path_value_pair_type = typename supertype::path_value_pair_type; + using json_location_node_type = typename supertype::json_location_node_type; + using node_receiver_type = typename supertype::node_receiver_type; + + root_selector(std::size_t id) + : base_selector(), id_(id) + { + } + + void select(dynamic_resources& resources, + reference root, + const json_location_node_type& last, + reference, + node_receiver_type& receiver, + result_options options) const override + { + this->tail_select(resources, root, last, root, receiver, options); + } + + reference evaluate(dynamic_resources& resources, + reference root, + const json_location_node_type& last, + reference, + result_options options, + std::error_code& ec) const override + { + if (resources.is_cached(id_)) + { + return resources.retrieve_from_cache(id_); + } + else + { + auto& ref = this->evaluate_tail(resources, root, last, root, options, ec); + if (!ec) + { + resources.add_to_cache(id_, ref); + } + + return ref; + } + } + + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("root_selector "); + s.append(base_selector::to_string(level+1)); + + return s; + } + }; + + template + class current_node_selector final : public base_selector + { + using supertype = base_selector; + + public: + using value_type = typename supertype::value_type; + using reference = typename supertype::reference; + using pointer = typename supertype::pointer; + using path_value_pair_type = typename supertype::path_value_pair_type; + using json_location_node_type = typename supertype::json_location_node_type; + using path_generator_type = path_generator; + using node_receiver_type = typename supertype::node_receiver_type; + + current_node_selector() + { + } + + void select(dynamic_resources& resources, + reference root, + const json_location_node_type& last, + reference current, + node_receiver_type& receiver, + result_options options) const override + { + this->tail_select(resources, + root, last, current, receiver, options); + } + + reference evaluate(dynamic_resources& resources, + reference root, + const json_location_node_type& last, + reference current, + result_options options, + std::error_code& ec) const override + { + //std::cout << "current_node_selector: " << current << "\n"; + return this->evaluate_tail(resources, + root, last, current, options, ec); + } + + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("current_node_selector"); + s.append(base_selector::to_string(level+1)); + + return s; + } + }; + + template + class parent_node_selector final : public base_selector + { + using supertype = base_selector; + + int ancestor_depth_; + + public: + using value_type = typename supertype::value_type; + using reference = typename supertype::reference; + using pointer = typename supertype::pointer; + using path_value_pair_type = typename supertype::path_value_pair_type; + using json_location_node_type = typename supertype::json_location_node_type; + using json_location_type = typename supertype::json_location_type; + using path_generator_type = path_generator; + using node_receiver_type = typename supertype::node_receiver_type; + + parent_node_selector(int ancestor_depth) + { + ancestor_depth_ = ancestor_depth; + } + + void select(dynamic_resources& resources, + reference root, + const json_location_node_type& last, + reference, + node_receiver_type& receiver, + result_options options) const override + { + const json_location_node_type* ancestor = std::addressof(last); + int index = 0; + while (ancestor != nullptr && index < ancestor_depth_) + { + ancestor = ancestor->parent(); + ++index; + } + + if (ancestor != nullptr) + { + json_location_type path(*ancestor); + pointer ptr = jsoncons::jsonpath::select(root,path); + if (ptr != nullptr) + { + this->tail_select(resources, root, path.last(), *ptr, receiver, options); + } + } + } + + reference evaluate(dynamic_resources& resources, + reference root, + const json_location_node_type& last, + reference, + result_options options, + std::error_code& ec) const override + { + const json_location_node_type* ancestor = std::addressof(last); + int index = 0; + while (ancestor != nullptr && index < ancestor_depth_) + { + ancestor = ancestor->parent(); + ++index; + } + + if (ancestor != nullptr) + { + json_location_type path(*ancestor); + pointer ptr = jsoncons::jsonpath::select(root,path); + if (ptr != nullptr) + { + return this->evaluate_tail(resources, root, path.last(), *ptr, options, ec); + } + else + { + return resources.null_value(); + } + } + else + { + return resources.null_value(); + } + } + + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("parent_node_selector"); + s.append(base_selector::to_string(level+1)); + + return s; + } + }; + + template + class index_selector final : public base_selector + { + using supertype = base_selector; + + int64_t index_; + public: + using value_type = typename supertype::value_type; + using reference = typename supertype::reference; + using pointer = typename supertype::pointer; + using path_value_pair_type = typename supertype::path_value_pair_type; + using json_location_node_type = typename supertype::json_location_node_type; + using path_generator_type = path_generator; + using node_receiver_type = typename supertype::node_receiver_type; + + index_selector(int64_t index) + : base_selector(), index_(index) + { + } + + void select(dynamic_resources& resources, + reference root, + const json_location_node_type& last, + reference current, + node_receiver_type& receiver, + result_options options) const override + { + if (current.is_array()) + { + int64_t slen = static_cast(current.size()); + if (index_ >= 0 && index_ < slen) + { + std::size_t i = static_cast(index_); + this->tail_select(resources, root, + path_generator_type::generate(resources, last, i, options), + current.at(i), receiver, options); + } + else + { + int64_t index = slen + index_; + if (index >= 0 && index < slen) + { + std::size_t i = static_cast(index); + this->tail_select(resources, root, + path_generator_type::generate(resources, last, i, options), + current.at(i), receiver, options); + } + } + } + } + + reference evaluate(dynamic_resources& resources, + reference root, + const json_location_node_type& last, + reference current, + result_options options, + std::error_code& ec) const override + { + if (current.is_array()) + { + int64_t slen = static_cast(current.size()); + if (index_ >= 0 && index_ < slen) + { + std::size_t i = static_cast(index_); + return this->evaluate_tail(resources, root, + path_generator_type::generate(resources, last, i, options), + current.at(i), options, ec); + } + else + { + int64_t index = slen + index_; + if (index >= 0 && index < slen) + { + std::size_t i = static_cast(index); + return this->evaluate_tail(resources, root, + path_generator_type::generate(resources, last, i, options), + current.at(i), options, ec); + } + else + { + return resources.null_value(); + } + } + } + else + { + return resources.null_value(); + } + } + }; + + template + class wildcard_selector final : public base_selector + { + using supertype = base_selector; + + public: + using value_type = typename supertype::value_type; + using reference = typename supertype::reference; + using pointer = typename supertype::pointer; + using path_value_pair_type = typename supertype::path_value_pair_type; + using json_location_node_type = typename supertype::json_location_node_type; + using path_generator_type = path_generator; + using node_receiver_type = typename supertype::node_receiver_type; + + wildcard_selector() + : base_selector() + { + } + + void select(dynamic_resources& resources, + reference root, + const json_location_node_type& last, + reference current, + node_receiver_type& receiver, + result_options options) const override + { + if (current.is_array()) + { + for (std::size_t i = 0; i < current.size(); ++i) + { + this->tail_select(resources, root, + path_generator_type::generate(resources, last, i, options), current[i], + receiver, options); + } + } + else if (current.is_object()) + { + for (auto& member : current.object_range()) + { + this->tail_select(resources, root, + path_generator_type::generate(resources, last, member.key(), options), + member.value(), receiver, options); + } + } + //std::cout << "end wildcard_selector\n"; + } + + reference evaluate(dynamic_resources& resources, + reference root, + const json_location_node_type& last, + reference current, + result_options options, + std::error_code&) const override + { + auto jptr = resources.create_json(json_array_arg); + json_array_receiver receiver(jptr); + select(resources, root, last, current, receiver, options); + return *jptr; + } + + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("wildcard selector"); + s.append(base_selector::to_string(level)); + + return s; + } + }; + + template + class recursive_selector final : public base_selector + { + using supertype = base_selector; + + public: + using value_type = typename supertype::value_type; + using reference = typename supertype::reference; + using pointer = typename supertype::pointer; + using path_value_pair_type = typename supertype::path_value_pair_type; + using json_location_node_type = typename supertype::json_location_node_type; + using path_generator_type = path_generator; + using node_receiver_type = typename supertype::node_receiver_type; + + recursive_selector() + : base_selector() + { + } + + void select(dynamic_resources& resources, + reference root, + const json_location_node_type& last, + reference current, + node_receiver_type& receiver, + result_options options) const override + { + if (current.is_array()) + { + this->tail_select(resources, root, last, current, receiver, options); + for (std::size_t i = 0; i < current.size(); ++i) + { + select(resources, root, + path_generator_type::generate(resources, last, i, options), current[i], receiver, options); + } + } + else if (current.is_object()) + { + this->tail_select(resources, root, last, current, receiver, options); + for (auto& item : current.object_range()) + { + select(resources, root, + path_generator_type::generate(resources, last, item.key(), options), item.value(), receiver, options); + } + } + //std::cout << "end wildcard_selector\n"; + } + + reference evaluate(dynamic_resources& resources, + reference root, + const json_location_node_type& last, + reference current, + result_options options, + std::error_code&) const override + { + auto jptr = resources.create_json(json_array_arg); + json_array_receiver receiver(jptr); + select(resources, root, last, current, receiver, options); + return *jptr; + } + + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("wildcard selector"); + s.append(base_selector::to_string(level)); + + return s; + } + }; + + template + class union_selector final : public jsonpath_selector + { + using supertype = jsonpath_selector; + public: + using value_type = typename supertype::value_type; + using reference = typename supertype::reference; + using pointer = typename supertype::pointer; + using path_value_pair_type = typename supertype::path_value_pair_type; + using json_location_node_type = typename supertype::json_location_node_type; + using json_location_type = typename supertype::json_location_type; + using path_expression_type = path_expression; + using path_generator_type = path_generator; + using node_receiver_type = typename supertype::node_receiver_type; + using selector_type = typename supertype::selector_type; + private: + std::vector selectors_; + selector_type* tail_; + public: + union_selector(std::vector&& selectors) + : supertype(true, 11), selectors_(std::move(selectors)), tail_(nullptr) + { + } + + void append_selector(selector_type* tail) override + { + if (tail_ == nullptr) + { + tail_ = tail; + for (auto& selector : selectors_) + { + selector->append_selector(tail); + } + } + else + { + tail_->append_selector(tail); + } + } + + void select(dynamic_resources& resources, + reference root, + const json_location_node_type& last, + reference current, + node_receiver_type& receiver, + result_options options) const override + { + for (auto& selector : selectors_) + { + selector->select(resources, root, last, current, receiver, options); + } + } + + reference evaluate(dynamic_resources& resources, + reference root, + const json_location_node_type& last, + reference current, + result_options options, + std::error_code&) const override + { + auto jptr = resources.create_json(json_array_arg); + json_array_receiver receiver(jptr); + select(resources,root,last,current,receiver,options); + return *jptr; + } + + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("union selector "); + for (auto& selector : selectors_) + { + s.append(selector->to_string(level+1)); + //s.push_back('\n'); + } + + return s; + } + }; + + template + class filter_selector final : public base_selector + { + using supertype = base_selector; + + expression expr_; + + public: + using value_type = typename supertype::value_type; + using reference = typename supertype::reference; + using pointer = typename supertype::pointer; + using path_value_pair_type = typename supertype::path_value_pair_type; + using json_location_node_type = typename supertype::json_location_node_type; + using path_generator_type = path_generator; + using node_receiver_type = typename supertype::node_receiver_type; + + filter_selector(expression&& expr) + : base_selector(), expr_(std::move(expr)) + { + } + + void select(dynamic_resources& resources, + reference root, + const json_location_node_type& last, + reference current, + node_receiver_type& receiver, + result_options options) const override + { + if (current.is_array()) + { + for (std::size_t i = 0; i < current.size(); ++i) + { + std::error_code ec; + value_type r = expr_.evaluate(resources, root, current[i], options, ec); + bool t = ec ? false : detail::is_true(r); + if (t) + { + this->tail_select(resources, root, + path_generator_type::generate(resources, last, i, options), + current[i], receiver, options); + } + } + } + else if (current.is_object()) + { + for (auto& member : current.object_range()) + { + std::error_code ec; + value_type r = expr_.evaluate(resources, root, member.value(), options, ec); + bool t = ec ? false : detail::is_true(r); + if (t) + { + this->tail_select(resources, root, + path_generator_type::generate(resources, last, member.key(), options), + member.value(), receiver, options); + } + } + } + } + + reference evaluate(dynamic_resources& resources, + reference root, + const json_location_node_type& last, + reference current, + result_options options, + std::error_code&) const override + { + auto jptr = resources.create_json(json_array_arg); + json_array_receiver receiver(jptr); + select(resources, root, last, current, receiver, options); + return *jptr; + } + + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("filter selector "); + s.append(expr_.to_string(level+1)); + + return s; + } + }; + + template + class index_expression_selector final : public base_selector + { + using supertype = base_selector; + + expression expr_; + + public: + using value_type = typename supertype::value_type; + using reference = typename supertype::reference; + using pointer = typename supertype::pointer; + using path_value_pair_type = typename supertype::path_value_pair_type; + using json_location_node_type = typename supertype::json_location_node_type; + using path_generator_type = path_generator; + using node_receiver_type = typename supertype::node_receiver_type; + + index_expression_selector(expression&& expr) + : base_selector(), expr_(std::move(expr)) + { + } + + void select(dynamic_resources& resources, + reference root, + const json_location_node_type& last, + reference current, + node_receiver_type& receiver, + result_options options) const override + { + std::error_code ec; + value_type j = expr_.evaluate(resources, root, current, options, ec); + + if (!ec) + { + if (j.template is() && current.is_array()) + { + std::size_t start = j.template as(); + this->tail_select(resources, root, + path_generator_type::generate(resources, last, start, options), + current.at(start), receiver, options); + } + else if (j.is_string() && current.is_object()) + { + this->tail_select(resources, root, + path_generator_type::generate(resources, last, j.as_string(), options), + current.at(j.as_string_view()), receiver, options); + } + } + } + + reference evaluate(dynamic_resources& resources, + reference root, + const json_location_node_type& last, + reference current, + result_options options, + std::error_code& ec) const override + { + //std::cout << "index_expression_selector current: " << current << "\n"; + + value_type j = expr_.evaluate(resources, root, current, options, ec); + + if (!ec) + { + if (j.template is() && current.is_array()) + { + std::size_t start = j.template as(); + return this->evaluate_tail(resources, root, last, current.at(start), options, ec); + } + else if (j.is_string() && current.is_object()) + { + return this->evaluate_tail(resources, root, last, current.at(j.as_string_view()), options, ec); + } + else + { + return resources.null_value(); + } + } + else + { + return resources.null_value(); + } + } + + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("bracket expression selector "); + s.append(expr_.to_string(level+1)); + s.append(base_selector::to_string(level+1)); + + return s; + } + }; + + template + class slice_selector final : public base_selector + { + using supertype = base_selector; + using path_generator_type = path_generator; + + slice slice_; + public: + using value_type = typename supertype::value_type; + using reference = typename supertype::reference; + using pointer = typename supertype::pointer; + using path_value_pair_type = typename supertype::path_value_pair_type; + using json_location_node_type = typename supertype::json_location_node_type; + using node_receiver_type = typename supertype::node_receiver_type; + + slice_selector(const slice& slic) + : base_selector(), slice_(slic) + { + } + + void select(dynamic_resources& resources, + reference root, + const json_location_node_type& last, + reference current, + node_receiver_type& receiver, + result_options options) const override + { + if (current.is_array()) + { + auto start = slice_.get_start(current.size()); + auto end = slice_.get_stop(current.size()); + auto step = slice_.step(); + + if (step > 0) + { + if (start < 0) + { + start = 0; + } + if (end > static_cast(current.size())) + { + end = current.size(); + } + for (int64_t i = start; i < end; i += step) + { + std::size_t j = static_cast(i); + this->tail_select(resources, root, + path_generator_type::generate(resources, last, j, options), + current[j], receiver, options); + } + } + else if (step < 0) + { + if (start >= static_cast(current.size())) + { + start = static_cast(current.size()) - 1; + } + if (end < -1) + { + end = -1; + } + for (int64_t i = start; i > end; i += step) + { + std::size_t j = static_cast(i); + if (j < current.size()) + { + this->tail_select(resources, root, + path_generator_type::generate(resources, last,j,options), current[j], receiver, options); + } + } + } + } + } + + reference evaluate(dynamic_resources& resources, + reference root, + const json_location_node_type& last, + reference current, + result_options options, + std::error_code&) const override + { + auto jptr = resources.create_json(json_array_arg); + json_array_receiver accum(jptr); + select(resources, root, last, current, accum, options); + return *jptr; + } + }; + + template + class function_selector final : public base_selector + { + using supertype = base_selector; + + expression expr_; + + public: + using value_type = typename supertype::value_type; + using reference = typename supertype::reference; + using pointer = typename supertype::pointer; + using path_value_pair_type = typename supertype::path_value_pair_type; + using json_location_node_type = typename supertype::json_location_node_type; + using path_generator_type = path_generator; + using node_receiver_type = typename supertype::node_receiver_type; + + function_selector(expression&& expr) + : base_selector(), expr_(std::move(expr)) + { + } + + void select(dynamic_resources& resources, + reference root, + const json_location_node_type& last, + reference current, + node_receiver_type& receiver, + result_options options) const override + { + std::error_code ec; + value_type ref = expr_.evaluate(resources, root, current, options, ec); + if (!ec) + { + this->tail_select(resources, root, last, *resources.create_json(std::move(ref)), receiver, options); + } + } + + reference evaluate(dynamic_resources& resources, + reference root, + const json_location_node_type& last, + reference current, + result_options options, + std::error_code& ec) const override + { + value_type ref = expr_.evaluate(resources, root, current, options, ec); + if (!ec) + { + return this->evaluate_tail(resources, root, last, *resources.create_json(std::move(ref)), + options, ec); + } + else + { + return resources.null_value(); + } + } + + std::string to_string(int level = 0) const override + { + std::string s; + if (level > 0) + { + s.append("\n"); + s.append(level*2, ' '); + } + s.append("function_selector "); + s.append(expr_.to_string(level+1)); + + return s; + } + }; + +} // namespace detail +} // namespace jsonpath +} // namespace jsoncons + +#endif diff --git a/include/jsoncons_ext/jsonpointer/jsonpointer.hpp b/include/jsoncons_ext/jsonpointer/jsonpointer.hpp new file mode 100644 index 0000000..41e41e2 --- /dev/null +++ b/include/jsoncons_ext/jsonpointer/jsonpointer.hpp @@ -0,0 +1,1577 @@ +// Copyright 2017 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSONPOINTER_JSONPOINTER_HPP +#define JSONCONS_JSONPOINTER_JSONPOINTER_HPP + +#include +#include +#include +#include +#include +#include // std::move +#include // system_error +#include // std::enable_if, std::true_type +#include +#include +#include + +namespace jsoncons { namespace jsonpointer { + + namespace detail { + + enum class pointer_state + { + start, + escaped, + delim + }; + + } // namespace detail + + template + std::basic_string escape_string(const std::basic_string& s) + { + std::basic_string result; + for (auto c : s) + { + switch (c) + { + case '~': + result.push_back('~'); + result.push_back('0'); + break; + case '/': + result.push_back('~'); + result.push_back('1'); + break; + default: + result.push_back(c); + break; + } + } + return result; + } + + // basic_json_pointer + + template + class basic_json_pointer + { + public: + // Member types + using char_type = CharT; + using string_type = std::basic_string; + using string_view_type = jsoncons::basic_string_view; + using const_iterator = typename std::vector::const_iterator; + using iterator = const_iterator; + using const_reverse_iterator = typename std::vector::const_reverse_iterator; + using reverse_iterator = const_reverse_iterator; + private: + std::vector tokens_; + public: + // Constructors + basic_json_pointer() + { + } + + basic_json_pointer(const std::vector& tokens) + : tokens_(tokens) + { + } + + basic_json_pointer(std::vector&& tokens) + : tokens_(std::move(tokens)) + { + } + + explicit basic_json_pointer(const string_view_type& s) + { + std::error_code ec; + auto jp = parse(s, ec); + if (ec) + { + throw jsonpointer_error(ec); + } + tokens_ = std::move(jp.tokens_); + } + + explicit basic_json_pointer(const string_view_type& s, std::error_code& ec) + { + auto jp = parse(s, ec); + if (!ec) + { + tokens_ = std::move(jp.tokens_); + } + } + + basic_json_pointer(const basic_json_pointer&) = default; + + basic_json_pointer(basic_json_pointer&&) = default; + + static basic_json_pointer parse(const string_view_type& input, std::error_code& ec) + { + std::vector tokens; + if (input.empty() || (input[0] == '#' && input.size() == 1)) + { + return basic_json_pointer(); + } + + const char_type* p; + const char_type* pend; + string_type unescaped; + if (input[0] == '#') + { + unescaped = unescape_uri_string(input, ec); + p = unescaped.data() + 1; + pend = unescaped.data() + unescaped.size(); + } + else + { + p = input.data(); + pend = input.data() + input.size(); + } + + auto state = jsonpointer::detail::pointer_state::start; + string_type buffer; + + while (p < pend) + { + bool done = false; + while (p < pend && !done) + { + switch (state) + { + case jsonpointer::detail::pointer_state::start: + switch (*p) + { + case '/': + state = jsonpointer::detail::pointer_state::delim; + break; + default: + ec = jsonpointer_errc::expected_slash; + return basic_json_pointer(); + }; + break; + case jsonpointer::detail::pointer_state::delim: + switch (*p) + { + case '/': + done = true; + break; + case '~': + state = jsonpointer::detail::pointer_state::escaped; + break; + default: + buffer.push_back(*p); + break; + }; + break; + case jsonpointer::detail::pointer_state::escaped: + switch (*p) + { + case '0': + buffer.push_back('~'); + state = jsonpointer::detail::pointer_state::delim; + break; + case '1': + buffer.push_back('/'); + state = jsonpointer::detail::pointer_state::delim; + break; + default: + ec = jsonpointer_errc::expected_0_or_1; + return basic_json_pointer(); + }; + break; + } + ++p; + } + tokens.push_back(buffer); + buffer.clear(); + } + if (!buffer.empty()) + { + tokens.push_back(buffer); + } + return basic_json_pointer(tokens); + } + + static string_type escape_uri_string(const string_type& s) + { + string_type escaped; + for (auto ch : s) + { + switch (ch) + { + case '%': + escaped.append(string_type{'%','2','5'}); + break; + case '^': + escaped.append(string_type{'%','5','E'}); + break; + case '|': + escaped.append(string_type{'%','7','C'}); + break; + case '\\': + escaped.append(string_type{'%','5','C'}); + break; + case '\"': + escaped.append(string_type{'%','2','2'}); + break; + case ' ': + escaped.append(string_type{'%','2','0'}); + break; + default: + escaped.push_back(ch); + break; + } + } + + return escaped; + } + + static string_type unescape_uri_string(const string_view_type& s, std::error_code& ec) + { + if (s.size() < 3) + { + return string_type(s); + } + string_type unescaped; + std::size_t last = s.size() - 2; + std::size_t pos = 0; + while (pos < last) + { + if (s[pos] == '%') + { + uint8_t ch; + auto result = jsoncons::detail::to_integer_base16(s.data() + (pos+1), 2, ch); + if (!result) + { + ec = jsonpointer_errc::invalid_uri_escaped_data; + return string_type(s); + } + unescaped.push_back(ch); + pos += 3; + } + else + { + unescaped.push_back(s[pos]); + ++pos; + } + } + while (pos < s.size()) + { + unescaped.push_back(s[pos]); + ++pos; + } + return unescaped; + } + + // operator= + basic_json_pointer& operator=(const basic_json_pointer&) = default; + + basic_json_pointer& operator=(basic_json_pointer&&) = default; + + // Modifiers + + void clear() + { + tokens_.clear(); + } + + basic_json_pointer& operator/=(const string_type& s) + { + tokens_.push_back(s); + return *this; + } + + template + typename std::enable_if::value, basic_json_pointer&>::type + operator/=(IntegerType val) + { + string_type s; + jsoncons::detail::from_integer(val, s); + tokens_.push_back(s); + + return *this; + } + + basic_json_pointer& operator+=(const basic_json_pointer& p) + { + for (const auto& s : p.tokens_) + { + tokens_.push_back(s); + } + return *this; + } + + // Accessors + bool empty() const + { + return tokens_.empty(); + } + +#if !defined(JSONCONS_NO_DEPRECATED) + + JSONCONS_DEPRECATED_MSG("Instead, use to_string()") + string_type string() const + { + return to_string(); + } +#endif + string_type to_string() const + { + string_type buffer; + for (const auto& token : tokens_) + { + buffer.push_back('/'); + for (auto c : token) + { + switch (c) + { + case '~': + buffer.push_back('~'); + buffer.push_back('0'); + break; + case '/': + buffer.push_back('~'); + buffer.push_back('1'); + break; + default: + buffer.push_back(c); + break; + } + } + } + return buffer; + } + + string_type to_uri_fragment() const + { + string_type buffer{'#'}; + for (const auto& token : tokens_) + { + buffer.push_back('/'); + string_type s = escape_uri_string(token); + for (auto c : s) + { + switch (c) + { + case '~': + buffer.push_back('~'); + buffer.push_back('0'); + break; + case '/': + buffer.push_back('~'); + buffer.push_back('1'); + break; + default: + buffer.push_back(c); + break; + } + } + } + return buffer; + } + + // Iterators + iterator begin() const + { + return tokens_.begin(); + } + iterator end() const + { + return tokens_.end(); + } + + reverse_iterator rbegin() const + { + return tokens_.rbegin(); + } + reverse_iterator rend() const + { + return tokens_.rend(); + } + + // Non-member functions + friend basic_json_pointer operator/(const basic_json_pointer& lhs, const string_type& rhs) + { + basic_json_pointer p(lhs); + p /= rhs; + return p; + } + + friend basic_json_pointer operator+( const basic_json_pointer& lhs, const basic_json_pointer& rhs ) + { + basic_json_pointer p(lhs); + p += rhs; + return p; + } + + friend bool operator==( const basic_json_pointer& lhs, const basic_json_pointer& rhs ) + { + return lhs.tokens_ == rhs.okens_; + } + + friend bool operator!=( const basic_json_pointer& lhs, const basic_json_pointer& rhs ) + { + return lhs.tokens_ != rhs.tokens_; + } + + friend std::basic_ostream& + operator<<( std::basic_ostream& os, const basic_json_pointer& p ) + { + os << p.to_string(); + return os; + } + }; + + template + typename std::enable_if::value, basic_json_pointer>::type + operator/(const basic_json_pointer& lhs, IntegerType rhs) + { + basic_json_pointer p(lhs); + p /= rhs; + return p; + } + + using json_pointer = basic_json_pointer; + using wjson_pointer = basic_json_pointer; + + #if !defined(JSONCONS_NO_DEPRECATED) + template + using basic_address = basic_json_pointer; + template + using basic_json_ptr = basic_json_pointer; + JSONCONS_DEPRECATED_MSG("Instead, use json_pointer") typedef json_pointer address; + JSONCONS_DEPRECATED_MSG("Instead, use json_pointer") typedef json_pointer json_ptr; + JSONCONS_DEPRECATED_MSG("Instead, use wjson_pointer") typedef json_pointer wjson_ptr; + #endif + + namespace detail { + + template + const Json* resolve(const Json* current, const typename Json::string_view_type& buffer, std::error_code& ec) + { + if (current->is_array()) + { + if (buffer.size() == 1 && buffer[0] == '-') + { + ec = jsonpointer_errc::index_exceeds_array_size; + return current; + } + std::size_t index{0}; + auto result = jsoncons::detail::to_integer_decimal(buffer.data(), buffer.length(), index); + if (!result) + { + ec = jsonpointer_errc::invalid_index; + return current; + } + if (index >= current->size()) + { + ec = jsonpointer_errc::index_exceeds_array_size; + return current; + } + current = std::addressof(current->at(index)); + } + else if (current->is_object()) + { + if (!current->contains(buffer)) + { + ec = jsonpointer_errc::key_not_found; + return current; + } + current = std::addressof(current->at(buffer)); + } + else + { + ec = jsonpointer_errc::expected_object_or_array; + return current; + } + return current; + } + + template + Json* resolve(Json* current, const typename Json::string_view_type& buffer, bool create_if_missing, std::error_code& ec) + { + if (current->is_array()) + { + if (buffer.size() == 1 && buffer[0] == '-') + { + ec = jsonpointer_errc::index_exceeds_array_size; + return current; + } + std::size_t index{0}; + auto result = jsoncons::detail::to_integer_decimal(buffer.data(), buffer.length(), index); + if (!result) + { + ec = jsonpointer_errc::invalid_index; + return current; + } + if (index >= current->size()) + { + ec = jsonpointer_errc::index_exceeds_array_size; + return current; + } + current = std::addressof(current->at(index)); + } + else if (current->is_object()) + { + if (!current->contains(buffer)) + { + if (create_if_missing) + { + auto r = current->try_emplace(buffer, Json()); + current = std::addressof(r.first->value()); + } + else + { + ec = jsonpointer_errc::key_not_found; + return current; + } + } + else + { + current = std::addressof(current->at(buffer)); + } + } + else + { + ec = jsonpointer_errc::expected_object_or_array; + return current; + } + return current; + } + + } // namespace detail + + // get + + template + Json& get(Json& root, + const basic_json_pointer& location, + bool create_if_missing, + std::error_code& ec) + { + if (location.empty()) + { + return root; + } + + Json* current = std::addressof(root); + auto it = location.begin(); + auto end = location.end(); + while (it != end) + { + current = jsoncons::jsonpointer::detail::resolve(current, *it, create_if_missing, ec); + if (ec) + return *current; + ++it; + } + return *current; + } + + template + typename std::enable_if>::value,Json&>::type + get(Json& root, + const StringSource& location_str, + bool create_if_missing, + std::error_code& ec) + { + auto jsonptr = basic_json_pointer::parse(location_str, ec); + if (ec) + { + return root; + } + return get(root, jsonptr, create_if_missing, ec); + } + + template + const Json& get(const Json& root, + const basic_json_pointer& location, + std::error_code& ec) + { + if (location.empty()) + { + return root; + } + + const Json* current = std::addressof(root); + auto it = location.begin(); + auto end = location.end(); + while (it != end) + { + current = jsoncons::jsonpointer::detail::resolve(current, *it, ec); + if (ec) + return *current; + ++it; + } + return *current; + } + + template + typename std::enable_if>::value,const Json&>::type + get(const Json& root, + const StringSource& location_str, + std::error_code& ec) + { + auto jsonptr = basic_json_pointer::parse(location_str, ec); + if (ec) + { + return root; + } + return get(root, jsonptr, ec); + } + + template + Json& get(Json& root, + const basic_json_pointer& location, + std::error_code& ec) + { + return get(root, location, false, ec); + } + + template + typename std::enable_if>::value,Json&>::type + get(Json& root, + const StringSource& location_str, + std::error_code& ec) + { + return get(root, location_str, false, ec); + } + + template + Json& get(Json& root, + const basic_json_pointer& location, + bool create_if_missing = false) + { + std::error_code ec; + Json& j = get(root, location, create_if_missing, ec); + if (ec) + { + JSONCONS_THROW(jsonpointer_error(ec)); + } + return j; + } + + template + typename std::enable_if>::value,Json&>::type + get(Json& root, + const StringSource& location_str, + bool create_if_missing = false) + { + std::error_code ec; + Json& result = get(root, location_str, create_if_missing, ec); + if (ec) + { + JSONCONS_THROW(jsonpointer_error(ec)); + } + return result; + } + + template + const Json& get(const Json& root, const basic_json_pointer& location) + { + std::error_code ec; + const Json& j = get(root, location, ec); + if (ec) + { + JSONCONS_THROW(jsonpointer_error(ec)); + } + return j; + } + + template + typename std::enable_if>::value,const Json&>::type + get(const Json& root, const StringSource& location_str) + { + std::error_code ec; + const Json& j = get(root, location_str, ec); + if (ec) + { + JSONCONS_THROW(jsonpointer_error(ec)); + } + return j; + } + + // contains + + template + bool contains(const Json& root, const basic_json_pointer& location) + { + std::error_code ec; + get(root, location, ec); + return !ec ? true : false; + } + + template + typename std::enable_if>::value,bool>::type + contains(const Json& root, const StringSource& location_str) + { + std::error_code ec; + get(root, location_str, ec); + return !ec ? true : false; + } + + template + void add(Json& root, + const basic_json_pointer& location, + T&& value, + bool create_if_missing, + std::error_code& ec) + { + Json* current = std::addressof(root); + + std::basic_string buffer; + auto it = location.begin(); + auto end = location.end(); + while (it != end) + { + buffer = *it; + ++it; + if (it != end) + { + current = jsoncons::jsonpointer::detail::resolve(current, buffer, create_if_missing, ec); + if (ec) + return; + } + } + if (current->is_array()) + { + if (buffer.size() == 1 && buffer[0] == '-') + { + current->emplace_back(std::forward(value)); + current = std::addressof(current->at(current->size()-1)); + } + else + { + std::size_t index{0}; + auto result = jsoncons::detail::to_integer_decimal(buffer.data(), buffer.length(), index); + if (!result) + { + ec = jsonpointer_errc::invalid_index; + return; + } + if (index > current->size()) + { + ec = jsonpointer_errc::index_exceeds_array_size; + return; + } + if (index == current->size()) + { + current->emplace_back(std::forward(value)); + current = std::addressof(current->at(current->size()-1)); + } + else + { + auto it2 = current->insert(current->array_range().begin()+index,std::forward(value)); + current = std::addressof(*it2); + } + } + } + else if (current->is_object()) + { + auto r = current->insert_or_assign(buffer,std::forward(value)); + current = std::addressof(r.first->value()); + } + else + { + ec = jsonpointer_errc::expected_object_or_array; + return; + } + } + + // add + template + typename std::enable_if>::value,void>::type + add(Json& root, + const StringSource& location_str, + T&& value, + bool create_if_missing, + std::error_code& ec) + { + auto jsonptr = basic_json_pointer::parse(location_str, ec); + if (ec) + { + return; + } + add(root, jsonptr, std::forward(value), create_if_missing, ec); + } + + template + void add(Json& root, + const basic_json_pointer& location, + T&& value, + std::error_code& ec) + { + add(root, location, std::forward(value), false, ec); + } + + template + typename std::enable_if>::value,void>::type + add(Json& root, + const StringSource& location_str, + T&& value, + std::error_code& ec) + { + add(root, location_str, std::forward(value), false, ec); + } + + template + void add(Json& root, + const basic_json_pointer& location, + T&& value, + bool create_if_missing = false) + { + std::error_code ec; + add(root, location, std::forward(value), create_if_missing, ec); + if (ec) + { + JSONCONS_THROW(jsonpointer_error(ec)); + } + } + + template + typename std::enable_if>::value,void>::type + add(Json& root, + const StringSource& location_str, + T&& value, + bool create_if_missing = false) + { + std::error_code ec; + add(root, location_str, std::forward(value), create_if_missing, ec); + if (ec) + { + JSONCONS_THROW(jsonpointer_error(ec)); + } + } + + // add_if_absent + + template + void add_if_absent(Json& root, + const basic_json_pointer& location, + T&& value, + bool create_if_missing, + std::error_code& ec) + { + Json* current = std::addressof(root); + + std::basic_string buffer; + auto it = location.begin(); + auto end = location.end(); + + while (it != end) + { + buffer = *it; + ++it; + if (it != end) + { + current = jsoncons::jsonpointer::detail::resolve(current, buffer, create_if_missing, ec); + if (ec) + return; + } + } + if (current->is_array()) + { + if (buffer.size() == 1 && buffer[0] == '-') + { + current->emplace_back(std::forward(value)); + current = std::addressof(current->at(current->size()-1)); + } + else + { + std::size_t index{0}; + auto result = jsoncons::detail::to_integer_decimal(buffer.data(), buffer.length(), index); + if (!result) + { + ec = jsonpointer_errc::invalid_index; + return; + } + if (index > current->size()) + { + ec = jsonpointer_errc::index_exceeds_array_size; + return; + } + if (index == current->size()) + { + current->emplace_back(std::forward(value)); + current = std::addressof(current->at(current->size()-1)); + } + else + { + auto it2 = current->insert(current->array_range().begin()+index,std::forward(value)); + current = std::addressof(*it2); + } + } + } + else if (current->is_object()) + { + if (current->contains(buffer)) + { + ec = jsonpointer_errc::key_already_exists; + return; + } + else + { + auto r = current->try_emplace(buffer,std::forward(value)); + current = std::addressof(r.first->value()); + } + } + else + { + ec = jsonpointer_errc::expected_object_or_array; + return; + } + } + + template + typename std::enable_if>::value,void>::type + add_if_absent(Json& root, + const StringSource& location_str, + T&& value, + bool create_if_missing, + std::error_code& ec) + { + auto jsonptr = basic_json_pointer::parse(location_str, ec); + if (ec) + { + return; + } + add_if_absent(root, jsonptr, std::forward(value), create_if_missing, ec); + } + + template + typename std::enable_if>::value,void>::type + add_if_absent(Json& root, + const StringSource& location, + T&& value, + std::error_code& ec) + { + add_if_absent(root, location, std::forward(value), false, ec); + } + + template + typename std::enable_if>::value,void>::type + add_if_absent(Json& root, + const StringSource& location_str, + T&& value, + bool create_if_missing = false) + { + std::error_code ec; + add_if_absent(root, location_str, std::forward(value), create_if_missing, ec); + if (ec) + { + JSONCONS_THROW(jsonpointer_error(ec)); + } + } + + template + void add_if_absent(Json& root, + const basic_json_pointer& location, + T&& value, + std::error_code& ec) + { + add_if_absent(root, location, std::forward(value), false, ec); + } + + template + void add_if_absent(Json& root, + const basic_json_pointer& location, + T&& value, + bool create_if_missing = false) + { + std::error_code ec; + add_if_absent(root, location, std::forward(value), create_if_missing, ec); + if (ec) + { + JSONCONS_THROW(jsonpointer_error(ec)); + } + } + + // remove + + template + void remove(Json& root, const basic_json_pointer& location, std::error_code& ec) + { + Json* current = std::addressof(root); + + std::basic_string buffer; + auto it = location.begin(); + auto end = location.end(); + + while (it != end) + { + buffer = *it; + ++it; + if (it != end) + { + current = jsoncons::jsonpointer::detail::resolve(current, buffer, false, ec); + if (ec) + return; + } + } + if (current->is_array()) + { + if (buffer.size() == 1 && buffer[0] == '-') + { + ec = jsonpointer_errc::index_exceeds_array_size; + return; + } + else + { + std::size_t index{0}; + auto result = jsoncons::detail::to_integer_decimal(buffer.data(), buffer.length(), index); + if (!result) + { + ec = jsonpointer_errc::invalid_index; + return; + } + if (index >= current->size()) + { + ec = jsonpointer_errc::index_exceeds_array_size; + return; + } + current->erase(current->array_range().begin()+index); + } + } + else if (current->is_object()) + { + if (!current->contains(buffer)) + { + ec = jsonpointer_errc::key_not_found; + return; + } + else + { + current->erase(buffer); + } + } + else + { + ec = jsonpointer_errc::expected_object_or_array; + return; + } + } + + template + typename std::enable_if>::value,void>::type + remove(Json& root, const StringSource& location_str, std::error_code& ec) + { + auto jsonptr = basic_json_pointer::parse(location_str, ec); + if (ec) + { + return; + } + remove(root, jsonptr, ec); + } + + template + typename std::enable_if>::value,void>::type + remove(Json& root, const StringSource& location_str) + { + std::error_code ec; + remove(root, location_str, ec); + if (ec) + { + JSONCONS_THROW(jsonpointer_error(ec)); + } + } + + template + void remove(Json& root, const basic_json_pointer& location) + { + std::error_code ec; + remove(root, location, ec); + if (ec) + { + JSONCONS_THROW(jsonpointer_error(ec)); + } + } + + // replace + + template + void replace(Json& root, + const basic_json_pointer& location, + T&& value, + bool create_if_missing, + std::error_code& ec) + { + Json* current = std::addressof(root); + + std::basic_string buffer; + auto it = location.begin(); + auto end = location.end(); + + while (it != end) + { + buffer = *it; + ++it; + if (it != end) + { + current = jsoncons::jsonpointer::detail::resolve(current, buffer, create_if_missing, ec); + if (ec) + return; + } + } + if (current->is_array()) + { + if (buffer.size() == 1 && buffer[0] == '-') + { + ec = jsonpointer_errc::index_exceeds_array_size; + return; + } + else + { + std::size_t index{}; + auto result = jsoncons::detail::to_integer_decimal(buffer.data(), buffer.length(), index); + if (!result) + { + ec = jsonpointer_errc::invalid_index; + return; + } + if (index >= current->size()) + { + ec = jsonpointer_errc::index_exceeds_array_size; + return; + } + current->at(index) = std::forward(value); + } + } + else if (current->is_object()) + { + if (!current->contains(buffer)) + { + if (create_if_missing) + { + current->try_emplace(buffer,std::forward(value)); + } + else + { + ec = jsonpointer_errc::key_not_found; + return; + } + } + else + { + auto r = current->insert_or_assign(buffer,std::forward(value)); + current = std::addressof(r.first->value()); + } + } + else + { + ec = jsonpointer_errc::expected_object_or_array; + return; + } + } + + template + typename std::enable_if>::value,void>::type + replace(Json& root, + const StringSource& location_str, + T&& value, + bool create_if_missing, + std::error_code& ec) + { + auto jsonptr = basic_json_pointer::parse(location_str, ec); + if (ec) + { + return; + } + replace(root, jsonptr, std::forward(value), create_if_missing, ec); + } + + template + typename std::enable_if>::value,void>::type + replace(Json& root, + const StringSource& location_str, + T&& value, + std::error_code& ec) + { + replace(root, location_str, std::forward(value), false, ec); + } + + template + typename std::enable_if>::value,void>::type + replace(Json& root, + const StringSource& location_str, + T&& value, + bool create_if_missing = false) + { + std::error_code ec; + replace(root, location_str, std::forward(value), create_if_missing, ec); + if (ec) + { + JSONCONS_THROW(jsonpointer_error(ec)); + } + } + + template + void replace(Json& root, + const basic_json_pointer& location, + T&& value, + std::error_code& ec) + { + replace(root, location, std::forward(value), false, ec); + } + + template + void replace(Json& root, + const basic_json_pointer& location, + T&& value, + bool create_if_missing = false) + { + std::error_code ec; + replace(root, location, std::forward(value), create_if_missing, ec); + if (ec) + { + JSONCONS_THROW(jsonpointer_error(ec)); + } + } + + template + typename std::enable_if::value>::type + escape(const String& s, Result& result) + { + for (auto c : s) + { + if (c == '~') + { + result.push_back('~'); + result.push_back('0'); + } + else if (c == '/') + { + result.push_back('~'); + result.push_back('1'); + } + else + { + result.push_back(c); + } + } + } + + template + std::basic_string escape(const jsoncons::basic_string_view& s) + { + std::basic_string result; + + for (auto c : s) + { + if (c == '~') + { + result.push_back('~'); + result.push_back('0'); + } + else if (c == '/') + { + result.push_back('~'); + result.push_back('1'); + } + else + { + result.push_back(c); + } + } + return result; + } + + // flatten + + template + void flatten_(const std::basic_string& parent_key, + const Json& parent_value, + Json& result) + { + using char_type = typename Json::char_type; + using string_type = std::basic_string; + + switch (parent_value.type()) + { + case json_type::array_value: + { + if (parent_value.empty()) + { + // Flatten empty array to null + //result.try_emplace(parent_key, null_type{}); + //result[parent_key] = parent_value; + result.try_emplace(parent_key, parent_value); + } + else + { + for (std::size_t i = 0; i < parent_value.size(); ++i) + { + string_type key(parent_key); + key.push_back('/'); + jsoncons::detail::from_integer(i,key); + flatten_(key, parent_value.at(i), result); + } + } + break; + } + + case json_type::object_value: + { + if (parent_value.empty()) + { + // Flatten empty object to null + //result.try_emplace(parent_key, null_type{}); + //result[parent_key] = parent_value; + result.try_emplace(parent_key, parent_value); + } + else + { + for (const auto& item : parent_value.object_range()) + { + string_type key(parent_key); + key.push_back('/'); + escape(jsoncons::basic_string_view(item.key().data(),item.key().size()), key); + flatten_(key, item.value(), result); + } + } + break; + } + + default: + { + // add primitive parent_value with its reference string + //result[parent_key] = parent_value; + result.try_emplace(parent_key, parent_value); + break; + } + } + } + + template + Json flatten(const Json& value) + { + Json result; + std::basic_string parent_key; + flatten_(parent_key, value, result); + return result; + } + + + // unflatten + + enum class unflatten_options {none,assume_object = 1 + #if !defined(JSONCONS_NO_DEPRECATED) +,object = assume_object +#endif +}; + + template + Json safe_unflatten (Json& value) + { + if (!value.is_object() || value.empty()) + { + return value; + } + bool safe = true; + std::size_t index = 0; + for (const auto& item : value.object_range()) + { + std::size_t n; + auto r = jsoncons::detail::to_integer_decimal(item.key().data(),item.key().size(), n); + if (!r || (index++ != n)) + { + safe = false; + break; + } + } + + if (safe) + { + Json j(json_array_arg); + j.reserve(value.size()); + for (auto& item : value.object_range()) + { + j.emplace_back(std::move(item.value())); + } + Json a(json_array_arg); + for (auto& item : j.array_range()) + { + a.emplace_back(safe_unflatten (item)); + } + return a; + } + else + { + Json o(json_object_arg); + for (auto& item : value.object_range()) + { + o.try_emplace(item.key(), safe_unflatten (item.value())); + } + return o; + } + } + + template + jsoncons::optional try_unflatten_array(const Json& value) + { + using char_type = typename Json::char_type; + + if (JSONCONS_UNLIKELY(!value.is_object())) + { + JSONCONS_THROW(jsonpointer_error(jsonpointer_errc::argument_to_unflatten_invalid)); + } + Json result; + + for (const auto& item: value.object_range()) + { + Json* part = &result; + basic_json_pointer ptr(item.key()); + std::size_t index = 0; + for (auto it = ptr.begin(); it != ptr.end(); ) + { + auto s = *it; + size_t n{0}; + auto r = jsoncons::detail::to_integer_decimal(s.data(), s.size(), n); + if (r.ec == jsoncons::detail::to_integer_errc() && (index++ == n)) + { + if (!part->is_array()) + { + *part = Json(json_array_arg); + } + if (++it != ptr.end()) + { + if (n+1 > part->size()) + { + Json& ref = part->emplace_back(); + part = std::addressof(ref); + } + else + { + part = &part->at(n); + } + } + else + { + Json& ref = part->emplace_back(item.value()); + part = std::addressof(ref); + } + } + else if (part->is_object()) + { + if (++it != ptr.end()) + { + auto res = part->try_emplace(s,Json()); + part = &(res.first->value()); + } + else + { + auto res = part->try_emplace(s, item.value()); + part = &(res.first->value()); + } + } + else + { + return jsoncons::optional(); + } + } + } + + return result; + } + + template + Json unflatten_to_object(const Json& value, unflatten_options options = unflatten_options::none) + { + using char_type = typename Json::char_type; + + if (JSONCONS_UNLIKELY(!value.is_object())) + { + JSONCONS_THROW(jsonpointer_error(jsonpointer_errc::argument_to_unflatten_invalid)); + } + Json result; + + for (const auto& item: value.object_range()) + { + Json* part = &result; + basic_json_pointer ptr(item.key()); + for (auto it = ptr.begin(); it != ptr.end(); ) + { + auto s = *it; + if (++it != ptr.end()) + { + auto res = part->try_emplace(s,Json()); + part = &(res.first->value()); + } + else + { + auto res = part->try_emplace(s, item.value()); + part = &(res.first->value()); + } + } + } + + return options == unflatten_options::none ? safe_unflatten (result) : result; + } + + template + Json unflatten(const Json& value, unflatten_options options = unflatten_options::none) + { + if (options == unflatten_options::none) + { + jsoncons::optional j = try_unflatten_array(value); + return j ? *j : unflatten_to_object(value,options); + } + else + { + return unflatten_to_object(value,options); + } + } + +#if !defined(JSONCONS_NO_DEPRECATED) + + template + JSONCONS_DEPRECATED_MSG("Instead, use add(Json&, const typename Json::string_view_type&, const Json&)") + void insert_or_assign(Json& root, const std::basic_string& location, const Json& value) + { + add(root, location, value); + } + + template + JSONCONS_DEPRECATED_MSG("Instead, use add(Json&, const typename Json::string_view_type&, const Json&, std::error_code&)") + void insert_or_assign(Json& root, const std::basic_string& location, const Json& value, std::error_code& ec) + { + add(root, location, value, ec); + } + template + void insert(Json& root, + const std::basic_string& location, + T&& value, + bool create_if_missing, + std::error_code& ec) + { + add_if_absent(root,location,std::forward(value),create_if_missing,ec); + } + + template + void insert(Json& root, + const std::basic_string& location, + T&& value, + std::error_code& ec) + { + add_if_absent(root, location, std::forward(value), ec); + } + + template + void insert(Json& root, + const std::basic_string& location, + T&& value, + bool create_if_missing = false) + { + add_if_absent(root, location, std::forward(value), create_if_missing); + } +#endif + +} // namespace jsonpointer +} // namespace jsoncons + +#endif diff --git a/include/jsoncons_ext/jsonpointer/jsonpointer_error.hpp b/include/jsoncons_ext/jsonpointer/jsonpointer_error.hpp new file mode 100644 index 0000000..a0cfeff --- /dev/null +++ b/include/jsoncons_ext/jsonpointer/jsonpointer_error.hpp @@ -0,0 +1,119 @@ +// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSONPOINTER_JSONPOINTER_ERROR_HPP +#define JSONCONS_JSONPOINTER_JSONPOINTER_ERROR_HPP + +#include +#include + +namespace jsoncons { namespace jsonpointer { + +class jsonpointer_error : public std::system_error, public virtual json_exception +{ +public: + jsonpointer_error(const std::error_code& ec) + : std::system_error(ec) + { + } + jsonpointer_error(const std::error_code& ec, const std::string& what_arg) + : std::system_error(ec, what_arg) + { + } + jsonpointer_error(const std::error_code& ec, const char* what_arg) + : std::system_error(ec, what_arg) + { + } + jsonpointer_error(const jsonpointer_error& other) = default; + + jsonpointer_error(jsonpointer_error&& other) = default; + + const char* what() const noexcept override + { + return std::system_error::what(); + } +}; + +enum class jsonpointer_errc +{ + success = 0, + expected_slash = 1, + index_exceeds_array_size, + expected_0_or_1, + invalid_index, + key_not_found, + key_already_exists, + expected_object_or_array, + end_of_input, + unexpected_end_of_input, + argument_to_unflatten_invalid, + invalid_flattened_key, + invalid_uri_escaped_data +}; + +class jsonpointer_error_category_impl + : public std::error_category +{ +public: + const char* name() const noexcept override + { + return "jsoncons/jsonpointer"; + } + std::string message(int ev) const override + { + switch (static_cast(ev)) + { + case jsonpointer_errc::expected_slash: + return "Expected /"; + case jsonpointer_errc::index_exceeds_array_size: + return "Index exceeds array size"; + case jsonpointer_errc::expected_0_or_1: + return "Expected '0' or '1' after escape character '~'"; + case jsonpointer_errc::key_not_found: + return "Key not found"; + case jsonpointer_errc::invalid_index: + return "Invalid array index"; + case jsonpointer_errc::key_already_exists: + return "Key already exists"; + case jsonpointer_errc::expected_object_or_array: + return "Expected object or array"; + case jsonpointer_errc::end_of_input: + return "Unexpected end of input"; + case jsonpointer_errc::unexpected_end_of_input: + return "Unexpected end of jsonpointer input"; + case jsonpointer_errc::argument_to_unflatten_invalid: + return "Argument to unflatten must be an object"; + case jsonpointer_errc::invalid_flattened_key: + return "Flattened key is invalid"; + default: + return "Unknown jsonpointer error"; + } + } +}; + +inline +const std::error_category& jsonpointer_error_category() +{ + static jsonpointer_error_category_impl instance; + return instance; +} + +inline +std::error_code make_error_code(jsonpointer_errc result) +{ + return std::error_code(static_cast(result),jsonpointer_error_category()); +} + +}} + +namespace std { + template<> + struct is_error_code_enum : public true_type + { + }; +} + +#endif diff --git a/include/jsoncons_ext/jsonschema/format_validator.hpp b/include/jsoncons_ext/jsonschema/format_validator.hpp new file mode 100644 index 0000000..312bf41 --- /dev/null +++ b/include/jsoncons_ext/jsonschema/format_validator.hpp @@ -0,0 +1,968 @@ +// Copyright 2020 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSONSCHEMA_FORMAT_VALIDATOR_HPP +#define JSONCONS_JSONSCHEMA_FORMAT_VALIDATOR_HPP + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#if defined(JSONCONS_HAS_STD_REGEX) +#include +#endif + +namespace jsoncons { +namespace jsonschema { + + inline + bool is_atext( char c) + { + switch (c) + { + case '!': + case '#': + case '$': + case '%': + case '&': + case '\'': + case '*': + case '+': + case '-': + case '/': + case '=': + case '?': + case '^': + case '_': + case '`': + case '{': + case '|': + case '}': + case '~': + return true; + default: + return (c >= '0' && c <= '9') || (c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z'); + } + } + + inline + bool is_dtext( char c) + { + return (c >= 33 && c <= 90) || (c >= 94 && c <= 126); + } + + // RFC 5322, section 3.4.1 + inline + bool validate_email_rfc5322(const std::string& s) + { + enum class state_t {local_part,atom,dot_atom,quoted_string,amp,domain}; + + state_t state = state_t::local_part; + std::size_t part_length = 0; + + for (char c : s) + { + switch (state) + { + case state_t::local_part: + { + if (is_atext(c)) + { + state = state_t::atom; + } + else if (c == '"') + { + state = state_t::quoted_string; + } + else + { + return false; + } + break; + } + case state_t::dot_atom: + { + if (is_atext(c)) + { + ++part_length; + state = state_t::atom; + } + else + return false; + break; + } + case state_t::atom: + { + switch (c) + { + case '@': + state = state_t::domain; + part_length = 0; + break; + case '.': + state = state_t::dot_atom; + ++part_length; + break; + default: + if (is_atext(c)) + ++part_length; + else + return false; + break; + } + break; + } + case state_t::quoted_string: + { + if (c == '\"') + { + state = state_t::amp; + } + else + { + ++part_length; + } + break; + } + case state_t::amp: + { + if (c == '@') + { + state = state_t::domain; + part_length = 0; + } + else + { + return false; + } + break; + } + case state_t::domain: + { + if (is_dtext(c)) + { + ++part_length; + } + else + { + return false; + } + break; + } + } + } + + return state == state_t::domain && part_length > 0; + } + + // RFC 2673, Section 3.2 + + inline + bool validate_ipv6_rfc2373(const std::string& s) + { + enum class state_t{start,expect_hexdig_or_unspecified, + hexdig, decdig,expect_unspecified, unspecified}; + + state_t state = state_t::start; + + std::size_t digit_count = 0; + std::size_t piece_count = 0; + std::size_t piece_count2 = 0; + bool has_unspecified = false; + std::size_t dec_value = 0; + + for (std::size_t i = 0; i < s.length(); ++i) + { + char c = s[i]; + switch (state) + { + case state_t::start: + { + switch (c) + { + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': + case 'A':case 'B':case 'C':case 'D':case 'E':case 'F': + case 'a':case 'b':case 'c':case 'd':case 'e':case 'f': + state = state_t::hexdig; + ++digit_count; + piece_count = 0; + break; + case ':': + if (!has_unspecified) + { + state = state_t::expect_unspecified; + } + else + { + return false; + } + break; + default: + return false; + } + break; + } + case state_t::expect_hexdig_or_unspecified: + { + switch (c) + { + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': + dec_value = dec_value*10 + static_cast(c - '0'); // just in case this piece is followed by a dot + state = state_t::hexdig; + ++digit_count; + break; + case 'A':case 'B':case 'C':case 'D':case 'E':case 'F': + case 'a':case 'b':case 'c':case 'd':case 'e':case 'f': + state = state_t::hexdig; + ++digit_count; + break; + case ':': + if (!has_unspecified) + { + has_unspecified = true; + state = state_t::unspecified; + } + else + { + return false; + } + break; + default: + return false; + } + break; + } + case state_t::expect_unspecified: + { + if (c == ':') + { + has_unspecified = true; + state = state_t::unspecified; + } + else + { + return false; + } + break; + } + case state_t::hexdig: + { + switch (c) + { + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': + case 'A':case 'B':case 'C':case 'D':case 'E':case 'F': + case 'a':case 'b':case 'c':case 'd':case 'e':case 'f': + ++digit_count; + break; + case ':': + if (digit_count <= 4) + { + ++piece_count; + digit_count = 0; + dec_value = 0; + state = state_t::expect_hexdig_or_unspecified; + } + else + { + return false; + } + break; + case '.': + if (piece_count == 6 || has_unspecified) + { + ++piece_count2; + state = state_t::decdig; + dec_value = 0; + } + else + { + return false; + } + break; + default: + return false; + } + break; + } + case state_t::decdig: + { + switch (c) + { + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': + dec_value = dec_value*10 + static_cast(c - '0'); + ++digit_count; + break; + case '.': + if (dec_value > 0xff) + { + return false; + } + digit_count = 0; + dec_value = 0; + ++piece_count2; + break; + default: + return false; + } + break; + } + case state_t::unspecified: + { + switch (c) + { + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': + case 'A':case 'B':case 'C':case 'D':case 'E':case 'F': + case 'a':case 'b':case 'c':case 'd':case 'e':case 'f': + state = state_t::hexdig; + ++digit_count; + break; + default: + return false; + } + break; + } + default: + return false; + } + } + + switch (state) + { + case state_t::unspecified: + return piece_count <= 8; + case state_t::hexdig: + if (digit_count <= 4) + { + ++piece_count; + return digit_count > 0 && (piece_count == 8 || (has_unspecified && piece_count <= 8)); + } + else + { + return false; + } + case state_t::decdig: + ++piece_count2; + if (dec_value > 0xff) + { + return false; + } + return digit_count > 0 && piece_count2 == 4; + default: + return false; + } + } + + // RFC 2673, Section 3.2 + + inline + bool validate_ipv4_rfc2673(const std::string& s) + { + enum class state_t {expect_indicator_or_dotted_quad,decbyte, + bindig, octdig, hexdig}; + + state_t state = state_t::expect_indicator_or_dotted_quad; + + std::size_t digit_count = 0; + std::size_t decbyte_count = 0; + std::size_t value = 0; + + for (std::size_t i = 0; i < s.length(); ++i) + { + char c = s[i]; + switch (state) + { + case state_t::expect_indicator_or_dotted_quad: + { + switch (c) + { + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': + state = state_t::decbyte; + decbyte_count = 0; + digit_count = 1; + value = 0; + break; + case 'b': + state = state_t::bindig; + digit_count = 0; + break; + case 'o': + state = state_t::octdig; + digit_count = 0; + break; + case 'x': + state = state_t::hexdig; + digit_count = 0; + break; + default: + return false; + } + break; + } + case state_t::bindig: + { + if (digit_count >= 256) + { + return false; + } + switch (c) + { + case '0':case '1': + ++digit_count; + break; + default: + return false; + } + break; + } + case state_t::octdig: + { + if (digit_count >= 86) + { + return false; + } + switch (c) + { + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7': + ++digit_count; + break; + default: + return false; + } + break; + } + case state_t::hexdig: + { + if (digit_count >= 64) + { + return false; + } + switch (c) + { + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': + case 'A':case 'B':case 'C':case 'D':case 'E':case 'F': + case 'a':case 'b':case 'c':case 'd':case 'e':case 'f': + ++digit_count; + break; + default: + return false; + } + break; + } + case state_t::decbyte: + { + if (decbyte_count >= 4) + { + return false; + } + switch (c) + { + case '0':case '1':case '2':case '3':case '4':case '5':case '6':case '7':case '8': case '9': + { + if (digit_count >= 3) + { + return false; + } + ++digit_count; + value = value*10 + static_cast(c - '0'); + if (value > 255) + { + return false; + } + break; + } + case '.': + if (decbyte_count > 3) + { + return false; + } + ++decbyte_count; + digit_count = 0; + value = 0; + break; + default: + return false; + } + break; + } + default: + return false; + } + } + + switch (state) + { + case state_t::decbyte: + if (digit_count > 0) + { + ++decbyte_count; + } + else + { + return false; + } + return (decbyte_count == 4) ? true : false; + case state_t::bindig: + return digit_count > 0 ? true : false; + case state_t::octdig: + return digit_count > 0 ? true : false; + case state_t::hexdig: + return digit_count > 0 ? true : false; + default: + return false; + } + } + + // RFC 1034, Section 3.1 + inline + bool validate_hostname_rfc1034(const std::string& hostname) + { + enum class state_t {start_label,expect_letter_or_digit_or_hyphen_or_dot}; + + state_t state = state_t::start_label; + std::size_t length = hostname.length() - 1; + std::size_t label_length = 0; + + for (std::size_t i = 0; i < length; ++i) + { + char c = hostname[i]; + switch (state) + { + case state_t::start_label: + { + if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')) + { + ++label_length; + state = state_t::expect_letter_or_digit_or_hyphen_or_dot; + } + else + { + return false; + } + break; + } + case state_t::expect_letter_or_digit_or_hyphen_or_dot: + { + if (c == '.') + { + label_length = 0; + state = state_t::start_label; + } + else if (!((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || + (c >= '0' && c < '9') || c == '-')) + { + return false; + } + if (++label_length > 63) + { + return false; + } + break; + } + } + } + + char last = hostname.back(); + if (!((last >= 'a' && last <= 'z') || (last >= 'A' && last <= 'Z') || (last >= '0' && last < '9'))) + { + return false; + } + return true; + } + + inline + bool is_leap_year(std::size_t year) + { + return (year % 4 == 0 && (year % 100 != 0 || year % 400 == 0)); + } + + inline + std::size_t days_in_month(std::size_t year, std::size_t month) + { + switch (month) + { + case 1: return 31; + case 2: return is_leap_year(year) ? 29 : 28; + case 3: return 31; + case 4: return 30; + case 5: return 31; + case 6: return 30; + case 7: return 31; + case 8: return 31; + case 9: return 30; + case 10: return 31; + case 11: return 30; + case 12: return 31; + default: + JSONCONS_UNREACHABLE(); + break; + } + } + + enum class date_time_type {date_time,date,time}; + // RFC 3339, Section 5.6 + inline + bool validate_date_time_rfc3339(const std::string& s, date_time_type type) + { + enum class state_t {fullyear,month,mday,hour,minute,second,secfrac,z,offset_hour,offset_minute}; + + std::size_t piece_length = 0; + std::size_t year = 0; + std::size_t month = 0; + std::size_t mday = 0; + std::size_t value = 0; + state_t state = (type == date_time_type::time) ? state_t::hour : state_t::fullyear; + + for (char c : s) + { + switch (state) + { + case state_t::fullyear: + { + if (piece_length < 4 && (c >= '0' && c <= '9')) + { + piece_length++; + year = year*10 + static_cast(c - '0'); + } + else if (c == '-' && piece_length == 4) + { + state = state_t::month; + piece_length = 0; + } + else + { + return false; + } + break; + } + case state_t::month: + { + if (piece_length < 2 && (c >= '0' && c <= '9')) + { + piece_length++; + month = month*10 + static_cast(c - '0'); + } + else if (c == '-' && piece_length == 2 && (month >=1 && month <= 12)) + { + state = state_t::mday; + piece_length = 0; + } + else + { + return false; + } + break; + } + case state_t::mday: + { + if (piece_length < 2 && (c >= '0' && c <= '9')) + { + piece_length++; + mday = mday *10 + static_cast(c - '0'); + } + else if ((c == 'T' || c == 't') && piece_length == 2 && (mday <= days_in_month(year, month))) + { + piece_length = 0; + state = state_t::hour; + } + else + { + return false; + } + break; + } + case state_t::hour: + { + if (piece_length < 2 && (c >= '0' && c <= '9')) + { + piece_length++; + value = value*10 + static_cast(c - '0'); + } + else if (c == ':' && piece_length == 2 && (/*value >=0 && */ value <= 23)) + { + state = state_t::minute; + value = 0; + piece_length = 0; + } + else + { + return false; + } + break; + } + case state_t::minute: + { + if (piece_length < 2 && (c >= '0' && c <= '9')) + { + piece_length++; + value = value*10 + static_cast(c - '0'); + } + else if (c == ':' && piece_length == 2 && (/*value >=0 && */value <= 59)) + { + state = state_t::second; + value = 0; + piece_length = 0; + } + else + { + return false; + } + break; + } + case state_t::second: + { + if (piece_length < 2 && (c >= '0' && c <= '9')) + { + piece_length++; + value = value*10 + static_cast(c - '0'); + } + else if (piece_length == 2 && (/*value >=0 && */value <= 60)) // 00-58, 00-59, 00-60 based on leap second rules + { + switch (c) + { + case '.': + value = 0; + state = state_t::secfrac; + break; + case '+': + case '-': + value = 0; + piece_length = 0; + state = state_t::offset_hour; + break; + case 'Z': + case 'z': + state = state_t::z; + break; + default: + return false; + } + } + else + { + return false; + } + break; + } + case state_t::secfrac: + { + if (c >= '0' && c <= '9') + { + value = value*10 + static_cast(c - '0'); + } + else + { + switch (c) + { + case '+': + case '-': + value = 0; + piece_length = 0; + state = state_t::offset_hour; + break; + case 'Z': + case 'z': + state = state_t::z; + break; + default: + return false; + } + } + break; + } + case state_t::offset_hour: + { + if (piece_length < 2 && (c >= '0' && c <= '9')) + { + piece_length++; + value = value*10 + static_cast(c - '0'); + } + else if (c == ':' && piece_length == 2 && (/*value >=0 && */value <= 23)) + { + value = 0; + piece_length = 0; + state = state_t::offset_minute; + } + else + { + return false; + } + break; + } + case state_t::offset_minute: + { + if (piece_length < 2 && (c >= '0' && c <= '9')) + { + piece_length++; + value = value*10 + static_cast(c - '0'); + } + else if (c == ':' && piece_length == 2 && (/*value >=0 && */value <= 59)) + { + value = 0; + piece_length = 0; + } + else + { + return false; + } + break; + } + case state_t::z: + return false; + } + } + + if (type == date_time_type::date) + { + return state == state_t::mday && piece_length == 2 && (mday >= 1 && mday <= days_in_month(year, month)); + } + else + { + return state == state_t::offset_minute || state == state_t::z || state == state_t::secfrac; + } + } + + // format checkers + using format_checker = std::function; + + inline + void rfc3339_date_check(const std::string& absolute_keyword_location, + const jsonpointer::json_pointer& instance_location, + const std::string& value, + error_reporter& reporter) + { + if (!validate_date_time_rfc3339(value,date_time_type::date)) + { + reporter.error(validation_output("date", + absolute_keyword_location, + instance_location.to_uri_fragment(), + "\"" + value + "\" is not a RFC 3339 date string")); + } + } + + inline + void rfc3339_time_check(const std::string& absolute_keyword_location, + const jsonpointer::json_pointer& instance_location, + const std::string &value, + error_reporter& reporter) + { + if (!validate_date_time_rfc3339(value, date_time_type::time)) + { + reporter.error(validation_output("time", + absolute_keyword_location, + instance_location.to_uri_fragment(), + "\"" + value + "\" is not a RFC 3339 time string")); + } + } + + inline + void rfc3339_date_time_check(const std::string& absolute_keyword_location, + const jsonpointer::json_pointer& instance_location, + const std::string &value, + error_reporter& reporter) + { + if (!validate_date_time_rfc3339(value, date_time_type::date_time)) + { + reporter.error(validation_output("date-time", + absolute_keyword_location, + instance_location.to_uri_fragment(), + "\"" + value + "\" is not a RFC 3339 date-time string")); + } + } + + inline + void email_check(const std::string& absolute_keyword_location, + const jsonpointer::json_pointer& instance_location, + const std::string& value, + error_reporter& reporter) + { + if (!validate_email_rfc5322(value)) + { + reporter.error(validation_output("email", + absolute_keyword_location, + instance_location.to_uri_fragment(), + "\"" + value + "\" is not a valid email address as defined by RFC 5322")); + } + } + + inline + void hostname_check(const std::string& absolute_keyword_location, + const jsonpointer::json_pointer& instance_location, + const std::string& value, + error_reporter& reporter) + { + if (!validate_hostname_rfc1034(value)) + { + reporter.error(validation_output("hostname", + absolute_keyword_location, + instance_location.to_uri_fragment(), + "\"" + value + "\" is not a valid hostname as defined by RFC 3986 Appendix A")); + } + } + + inline + void ipv4_check(const std::string& absolute_keyword_location, + const jsonpointer::json_pointer& instance_location, + const std::string& value, + error_reporter& reporter) + { + if (!validate_ipv4_rfc2673(value)) + { + reporter.error(validation_output("ipv4", + absolute_keyword_location, + instance_location.to_uri_fragment(), + "\"" + value + "\" is not a valid IPv4 address as defined by RFC 2673")); + } + } + + inline + void ipv6_check(const std::string& absolute_keyword_location, + const jsonpointer::json_pointer& instance_location, + const std::string& value, + error_reporter& reporter) + { + if (!validate_ipv6_rfc2373(value)) + { + reporter.error(validation_output("ipv6", + absolute_keyword_location, + instance_location.to_uri_fragment(), + "\"" + value + "\" is not a valid IPv6 address as defined by RFC 2373")); + } + } + + inline + void regex_check(const std::string& absolute_keyword_location, + const jsonpointer::json_pointer& instance_location, + const std::string& value, + error_reporter& reporter) + { +#if defined(JSONCONS_HAS_STD_REGEX) + try + { + std::regex re(value, std::regex::ECMAScript); + } + catch (const std::exception& e) + { + reporter.error(validation_output("pattern", + absolute_keyword_location, + instance_location.to_uri_fragment(), + "\"" + value + "\" is not a valid ECMAScript regular expression. " + e.what())); + } +#endif + } + +} // namespace jsonschema +} // namespace jsoncons + +#endif // JSONCONS_JSONSCHEMA_FORMAT_CHECKERS_HPP diff --git a/include/jsoncons_ext/jsonschema/json_validator.hpp b/include/jsoncons_ext/jsonschema/json_validator.hpp new file mode 100644 index 0000000..87bec58 --- /dev/null +++ b/include/jsoncons_ext/jsonschema/json_validator.hpp @@ -0,0 +1,120 @@ +// Copyright 2020 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSONSCHEMA_JSON_VALIDATOR_HPP +#define JSONCONS_JSONSCHEMA_JSON_VALIDATOR_HPP + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +namespace jsoncons { +namespace jsonschema { + + class throwing_error_reporter : public error_reporter + { + void do_error(const validation_output& o) override + { + JSONCONS_THROW(validation_error(o.message())); + } + }; + + class fail_early_reporter : public error_reporter + { + void do_error(const validation_output&) override + { + } + public: + fail_early_reporter() + : error_reporter(true) + { + } + }; + + using error_reporter_t = std::function; + + struct error_reporter_adaptor : public error_reporter + { + error_reporter_t reporter_; + + error_reporter_adaptor(const error_reporter_t& reporter) + : reporter_(reporter) + { + } + private: + void do_error(const validation_output& e) override + { + reporter_(e); + } + }; + + template + class json_validator + { + std::shared_ptr> root_; + + public: + json_validator(std::shared_ptr> root) + : root_(root) + { + } + + json_validator(json_validator &&) = default; + json_validator &operator=(json_validator &&) = default; + + json_validator(json_validator const &) = delete; + json_validator &operator=(json_validator const &) = delete; + + ~json_validator() = default; + + // Validate input JSON against a JSON Schema with a default throwing error reporter + Json validate(const Json& instance) const + { + throwing_error_reporter reporter; + jsonpointer::json_pointer instance_location("#"); + Json patch(json_array_arg); + + root_->validate(instance, instance_location, reporter, patch); + return patch; + } + + // Validate input JSON against a JSON Schema + bool is_valid(const Json& instance) const + { + fail_early_reporter reporter; + jsonpointer::json_pointer instance_location("#"); + Json patch(json_array_arg); + + root_->validate(instance, instance_location, reporter, patch); + return reporter.error_count() == 0; + } + + // Validate input JSON against a JSON Schema with a provided error reporter + template + typename std::enable_if::value,Json>::type + validate(const Json& instance, const Reporter& reporter) const + { + jsonpointer::json_pointer instance_location("#"); + Json patch(json_array_arg); + + error_reporter_adaptor adaptor(reporter); + root_->validate(instance, instance_location, adaptor, patch); + return patch; + } + }; + +} // namespace jsonschema +} // namespace jsoncons + +#endif // JSONCONS_JSONSCHEMA_JSON_VALIDATOR_HPP diff --git a/include/jsoncons_ext/jsonschema/jsonschema.hpp b/include/jsoncons_ext/jsonschema/jsonschema.hpp new file mode 100644 index 0000000..e2c4210 --- /dev/null +++ b/include/jsoncons_ext/jsonschema/jsonschema.hpp @@ -0,0 +1,13 @@ +// Copyright 2020 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSONSCHEMA_JSONSCHEMA_HPP +#define JSONCONS_JSONSCHEMA_JSONSCHEMA_HPP + +#include +#include + +#endif // JSONCONS_JSONSCHEMA_JSONSCHEMA_HPP diff --git a/include/jsoncons_ext/jsonschema/jsonschema_error.hpp b/include/jsoncons_ext/jsonschema/jsonschema_error.hpp new file mode 100644 index 0000000..7cb1061 --- /dev/null +++ b/include/jsoncons_ext/jsonschema/jsonschema_error.hpp @@ -0,0 +1,105 @@ +/// Copyright 2020 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSONSCHEMA_JSONSCHEMA_ERROR_HPP +#define JSONCONS_JSONSCHEMA_JSONSCHEMA_ERROR_HPP + +#include +#include + +namespace jsoncons { +namespace jsonschema { + + class schema_error : public std::runtime_error, public virtual json_exception + { + public: + schema_error(const std::string& message) + : std::runtime_error(message) + { + } + + const char* what() const noexcept override + { + return std::runtime_error::what(); + } + }; + + class validation_error : public std::runtime_error, public virtual json_exception + { + public: + validation_error(const std::string& message) + : std::runtime_error(message) + { + } + + const char* what() const noexcept override + { + return std::runtime_error::what(); + } + }; + + class validation_output + { + std::string keyword_; + std::string absolute_keyword_location_; + std::string instance_location_; + std::string message_; + std::vector nested_errors_; + public: + validation_output(std::string keyword, + std::string absolute_keyword_location, + std::string instance_location, + std::string message) + : keyword_(std::move(keyword)), + absolute_keyword_location_(std::move(absolute_keyword_location)), + instance_location_(std::move(instance_location)), + message_(std::move(message)) + { + } + + validation_output(const std::string& keyword, + const std::string& absolute_keyword_location, + const std::string& instance_location, + const std::string& message, + const std::vector& nested_errors) + : keyword_(keyword), + absolute_keyword_location_(absolute_keyword_location), + instance_location_(instance_location), + message_(message), + nested_errors_(nested_errors) + { + } + + const std::string& instance_location() const + { + return instance_location_; + } + + const std::string& message() const + { + return message_; + } + + const std::string& absolute_keyword_location() const + { + return absolute_keyword_location_; + } + + const std::string& keyword() const + { + return keyword_; + } + + const std::vector& nested_errors() const + { + return nested_errors_; + } + }; + +} // namespace jsonschema +} // namespace jsoncons + +#endif // JSONCONS_JSONSCHEMA_JSONSCHEMA_ERROR_HPP diff --git a/include/jsoncons_ext/jsonschema/jsonschema_version.hpp b/include/jsoncons_ext/jsonschema/jsonschema_version.hpp new file mode 100644 index 0000000..bf0afff --- /dev/null +++ b/include/jsoncons_ext/jsonschema/jsonschema_version.hpp @@ -0,0 +1,18 @@ +// Copyright 2021 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSONSCHEMA_JSONSCHEMA_VERSION_HPP +#define JSONCONS_JSONSCHEMA_JSONSCHEMA_VERSION_HPP + +#include + +namespace jsoncons { +namespace jsonschema { + +} // namespace jsonschema +} // namespace jsoncons + +#endif // JSONCONS_JSONSCHEMA_JSONSCHEMA_VERSION_HPP diff --git a/include/jsoncons_ext/jsonschema/keyword_validator.hpp b/include/jsoncons_ext/jsonschema/keyword_validator.hpp new file mode 100644 index 0000000..249c7d0 --- /dev/null +++ b/include/jsoncons_ext/jsonschema/keyword_validator.hpp @@ -0,0 +1,1745 @@ +// Copyright 2020 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSONSCHEMA_KEYWORD_VALIDATOR_HPP +#define JSONCONS_JSONSCHEMA_KEYWORD_VALIDATOR_HPP + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#if defined(JSONCONS_HAS_STD_REGEX) +#include +#endif + +namespace jsoncons { +namespace jsonschema { + + template + class abstract_keyword_validator_factory + { + public: + using validator_pointer = typename keyword_validator::self_pointer; + + virtual ~abstract_keyword_validator_factory() = default; + + virtual validator_pointer make_keyword_validator(const Json& schema, + const std::vector& uris, + const std::vector& keys) = 0; + virtual validator_pointer make_required_validator(const std::vector& uris, + const std::vector& items) = 0; + + virtual validator_pointer make_null_validator(const std::vector& uris) = 0; + + virtual validator_pointer make_true_validator(const std::vector& uris) = 0; + + virtual validator_pointer make_false_validator(const std::vector& uris) = 0; + + virtual validator_pointer make_object_validator(const Json& sch, + const std::vector& uris) = 0; + + virtual validator_pointer make_array_validator(const Json& sch, + const std::vector& uris) = 0; + + virtual validator_pointer make_string_validator(const Json& sch, + const std::vector& uris) = 0; + + virtual validator_pointer make_boolean_validator(const std::vector& uris) = 0; + + virtual validator_pointer make_integer_validator(const Json& sch, + const std::vector& uris, + std::set& keywords) = 0; + + virtual validator_pointer make_number_validator(const Json& sch, + const std::vector& uris, + std::set& keywords) = 0; + + virtual validator_pointer make_not_validator(const Json& schema, + const std::vector& uris) = 0; + + virtual validator_pointer make_all_of_validator(const Json& schema, + const std::vector& uris) = 0; + + virtual validator_pointer make_any_of_validator(const Json& schema, + const std::vector& uris) = 0; + + virtual validator_pointer make_one_of_validator(const Json& schema, + const std::vector& uris) = 0; + + virtual validator_pointer make_type_validator(const Json& schema, + const std::vector& uris) = 0; + }; + + struct collecting_error_reporter : public error_reporter + { + std::vector errors; + + private: + void do_error(const validation_output& o) override + { + errors.push_back(o); + } + }; + + // string keyword_validator + + inline + std::string make_absolute_keyword_location(const std::vector& uris, + const std::string& keyword) + { + for (auto it = uris.rbegin(); it != uris.rend(); ++it) + { + if (!it->has_identifier() && it->is_absolute()) + { + return it->append(keyword).string(); + } + } + return ""; + } + + template + class string_validator : public keyword_validator + { + jsoncons::optional max_length_; + std::string max_length_location_; + jsoncons::optional min_length_; + std::string min_length_location_; + + #if defined(JSONCONS_HAS_STD_REGEX) + jsoncons::optional pattern_; + std::string pattern_string_; + std::string pattern_location_; + #endif + + format_checker format_check_; + std::string format_location_; + + jsoncons::optional content_encoding_; + std::string content_encoding_location_; + jsoncons::optional content_media_type_; + std::string content_media_type_location_; + + public: + string_validator(const Json& sch, const std::vector& uris) + : keyword_validator((!uris.empty() && uris.back().is_absolute()) ? uris.back().string() : ""), max_length_(), min_length_(), + #if defined(JSONCONS_HAS_STD_REGEX) + pattern_(), + #endif + content_encoding_(), content_media_type_() + { + auto it = sch.find("maxLength"); + if (it != sch.object_range().end()) + { + max_length_ = it->value().template as(); + max_length_location_ = make_absolute_keyword_location(uris, "maxLength"); + } + + it = sch.find("minLength"); + if (it != sch.object_range().end()) + { + min_length_ = it->value().template as(); + min_length_location_ = make_absolute_keyword_location(uris, "minLength"); + } + + it = sch.find("contentEncoding"); + if (it != sch.object_range().end()) + { + content_encoding_ = it->value().template as(); + content_encoding_location_ = make_absolute_keyword_location(uris, "contentEncoding"); + // If "contentEncoding" is set to "binary", a Json value + // of type json_type::byte_string_value is accepted. + } + + it = sch.find("contentMediaType"); + if (it != sch.object_range().end()) + { + content_media_type_ = it->value().template as(); + content_media_type_location_ = make_absolute_keyword_location(uris, "contentMediaType"); + } + + #if defined(JSONCONS_HAS_STD_REGEX) + it = sch.find("pattern"); + if (it != sch.object_range().end()) + { + pattern_string_ = it->value().template as(); + pattern_ = std::regex(it->value().template as(),std::regex::ECMAScript); + pattern_location_ = make_absolute_keyword_location(uris, "pattern"); + } + #endif + + it = sch.find("format"); + if (it != sch.object_range().end()) + { + format_location_ = make_absolute_keyword_location(uris, "format"); + std::string format = it->value().template as(); + if (format == "date-time") + { + format_check_ = rfc3339_date_time_check; + } + else if (format == "date") + { + format_check_ = rfc3339_date_check; + } + else if (format == "time") + { + format_check_ = rfc3339_time_check; + } + else if (format == "email") + { + format_check_ = email_check; + } + else if (format == "hostname") + { + format_check_ = hostname_check; + } + else if (format == "ipv4") + { + format_check_ = ipv4_check; + } + else if (format == "ipv6") + { + format_check_ = ipv6_check; + } + else if (format == "regex") + { + format_check_ = regex_check; + } + else + { + // Not supported - ignore + } + } + } + + private: + + void do_validate(const Json& instance, + const jsonpointer::json_pointer& instance_location, + error_reporter& reporter, + Json&) const override + { + std::string content; + if (content_encoding_) + { + if (*content_encoding_ == "base64") + { + auto s = instance.template as(); + auto retval = jsoncons::decode_base64(s.begin(), s.end(), content); + if (retval.ec != jsoncons::conv_errc::success) + { + reporter.error(validation_output("contentEncoding", + content_encoding_location_, + instance_location.to_uri_fragment(), + "Content is not a base64 string")); + if (reporter.fail_early()) + { + return; + } + } + } + else if (!content_encoding_->empty()) + { + reporter.error(validation_output("contentEncoding", + content_encoding_location_, + instance_location.to_uri_fragment(), + "unable to check for contentEncoding '" + *content_encoding_ + "'")); + if (reporter.fail_early()) + { + return; + } + } + } + else + { + content = instance.template as(); + } + + if (content_media_type_) + { + if (content_media_type_ == "application/Json") + { + json_string_reader reader(content); + std::error_code ec; + reader.read(ec); + + if (ec) + { + reporter.error(validation_output("contentMediaType", + content_media_type_location_, + instance_location.to_uri_fragment(), + std::string("Content is not JSON: ") + ec.message())); + } + } + } + else if (instance.type() == json_type::byte_string_value) + { + reporter.error(validation_output("contentMediaType", + content_media_type_location_, + instance_location.to_uri_fragment(), + "Expected string, but is byte string")); + if (reporter.fail_early()) + { + return; + } + } + + if (instance.type() != json_type::string_value) + { + return; + } + + if (min_length_) + { + std::size_t length = unicode_traits::count_codepoints(content.data(), content.size()); + if (length < *min_length_) + { + reporter.error(validation_output("minLength", + min_length_location_, + instance_location.to_uri_fragment(), + std::string("Expected minLength: ") + std::to_string(*min_length_) + + ", actual: " + std::to_string(length))); + if (reporter.fail_early()) + { + return; + } + } + } + + if (max_length_) + { + std::size_t length = unicode_traits::count_codepoints(content.data(), content.size()); + if (length > *max_length_) + { + reporter.error(validation_output("maxLength", + max_length_location_, + instance_location.to_uri_fragment(), + std::string("Expected maxLength: ") + std::to_string(*max_length_) + + ", actual: " + std::to_string(length))); + if (reporter.fail_early()) + { + return; + } + } + } + + #if defined(JSONCONS_HAS_STD_REGEX) + if (pattern_) + { + if (!std::regex_search(content, *pattern_)) + { + std::string message("String \""); + message.append(instance.template as()); + message.append("\" does not match pattern \""); + message.append(pattern_string_); + message.append("\""); + reporter.error(validation_output("pattern", + pattern_location_, + instance_location.to_uri_fragment(), + std::move(message))); + if (reporter.fail_early()) + { + return; + } + } + } + + #endif + + if (format_check_ != nullptr) + { + format_check_(format_location_, instance_location, content, reporter); + if (reporter.error_count() > 0 && reporter.fail_early()) + { + return; + } + } + } + }; + + // not_validator + + template + class not_validator : public keyword_validator + { + using validator_pointer = typename keyword_validator::self_pointer; + + validator_pointer rule_; + + public: + not_validator(abstract_keyword_validator_factory* builder, + const Json& sch, + const std::vector& uris) + : keyword_validator((!uris.empty() && uris.back().is_absolute()) ? uris.back().string() : "") + { + rule_ = builder->make_keyword_validator(sch, uris, {"not"}); + } + + private: + + void do_validate(const Json& instance, + const jsonpointer::json_pointer& instance_location, + error_reporter& reporter, + Json& patch) const final + { + collecting_error_reporter local_reporter; + rule_->validate(instance, instance_location, local_reporter, patch); + + if (local_reporter.errors.empty()) + { + reporter.error(validation_output("not", + this->absolute_keyword_location(), + instance_location.to_uri_fragment(), + "Instance must not be valid against schema")); + } + } + + jsoncons::optional get_default_value(const jsonpointer::json_pointer& instance_location, + const Json& instance, + error_reporter& reporter) const override + { + return rule_->get_default_value(instance_location, instance, reporter); + } + }; + + template + struct all_of_criterion + { + static const std::string& key() + { + static const std::string k("allOf"); + return k; + } + + static bool is_complete(const Json&, + const jsonpointer::json_pointer& instance_location, + error_reporter& reporter, + const collecting_error_reporter& local_reporter, + std::size_t) + { + if (!local_reporter.errors.empty()) + reporter.error(validation_output("allOf", + "", + instance_location.to_uri_fragment(), + "At least one schema failed to match, but all are required to match. ", + local_reporter.errors)); + return !local_reporter.errors.empty(); + } + }; + + template + struct any_of_criterion + { + static const std::string& key() + { + static const std::string k("anyOf"); + return k; + } + + static bool is_complete(const Json&, + const jsonpointer::json_pointer&, + error_reporter&, + const collecting_error_reporter&, + std::size_t count) + { + return count == 1; + } + }; + + template + struct one_of_criterion + { + static const std::string& key() + { + static const std::string k("oneOf"); + return k; + } + + static bool is_complete(const Json&, + const jsonpointer::json_pointer& instance_location, + error_reporter& reporter, + const collecting_error_reporter&, + std::size_t count) + { + if (count > 1) + { + std::string message(std::to_string(count)); + message.append(" subschemas matched, but exactly one is required to match"); + reporter.error(validation_output("oneOf", + "", + instance_location.to_uri_fragment(), + std::move(message))); + } + return count > 1; + } + }; + + template + class combining_validator : public keyword_validator + { + using validator_pointer = typename keyword_validator::self_pointer; + + std::vector subschemas_; + + public: + combining_validator(abstract_keyword_validator_factory* builder, + const Json& sch, + const std::vector& uris) + : keyword_validator((!uris.empty() && uris.back().is_absolute()) ? uris.back().string() : "") + { + size_t c = 0; + for (const auto& subsch : sch.array_range()) + { + subschemas_.push_back(builder->make_keyword_validator(subsch, uris, {Criterion::key(), std::to_string(c++)})); + } + + // Validate value of allOf, anyOf, and oneOf "MUST be a non-empty array" + } + + private: + + void do_validate(const Json& instance, + const jsonpointer::json_pointer& instance_location, + error_reporter& reporter, + Json& patch) const final + { + size_t count = 0; + + collecting_error_reporter local_reporter; + for (auto& s : subschemas_) + { + std::size_t mark = local_reporter.errors.size(); + s->validate(instance, instance_location, local_reporter, patch); + if (mark == local_reporter.errors.size()) + count++; + + if (Criterion::is_complete(instance, instance_location, reporter, local_reporter, count)) + return; + } + + if (count == 0) + { + reporter.error(validation_output("combined", + this->absolute_keyword_location(), + instance_location.to_uri_fragment(), + "No schema matched, but one of them is required to match", + local_reporter.errors)); + } + } + }; + + template + T get_number(const Json& val, const string_view& keyword) + { + if (!val.is_number()) + { + std::string message(keyword); + message.append(" must be a number value"); + JSONCONS_THROW(schema_error(message)); + } + return val.template as(); + } + + template + class numeric_validator_base : public keyword_validator + { + jsoncons::optional maximum_; + std::string absolute_maximum_location_; + jsoncons::optional minimum_; + std::string absolute_minimum_location_; + jsoncons::optional exclusive_maximum_; + std::string absolute_exclusive_maximum_location_; + jsoncons::optional exclusive_minimum_; + std::string absolute_exclusive_minimum_location_; + jsoncons::optional multiple_of_; + std::string absolute_multiple_of_location_; + + public: + numeric_validator_base(const Json& sch, + const std::vector& uris, + std::set& keywords) + : keyword_validator((!uris.empty() && uris.back().is_absolute()) ? uris.back().string() : ""), + maximum_(), minimum_(),exclusive_maximum_(), exclusive_minimum_(), multiple_of_() + { + auto it = sch.find("maximum"); + if (it != sch.object_range().end()) + { + maximum_ = get_number(it->value(), "maximum"); + absolute_maximum_location_ = make_absolute_keyword_location(uris,"maximum"); + keywords.insert("maximum"); + } + + it = sch.find("minimum"); + if (it != sch.object_range().end()) + { + minimum_ = get_number(it->value(), "minimum"); + absolute_minimum_location_ = make_absolute_keyword_location(uris,"minimum"); + keywords.insert("minimum"); + } + + it = sch.find("exclusiveMaximum"); + if (it != sch.object_range().end()) + { + exclusive_maximum_ = get_number(it->value(), "exclusiveMaximum"); + absolute_exclusive_maximum_location_ = make_absolute_keyword_location(uris,"exclusiveMaximum"); + keywords.insert("exclusiveMaximum"); + } + + it = sch.find("exclusiveMinimum"); + if (it != sch.object_range().end()) + { + exclusive_minimum_ = get_number(it->value(), "exclusiveMinimum"); + absolute_exclusive_minimum_location_ = make_absolute_keyword_location(uris,"exclusiveMinimum"); + keywords.insert("exclusiveMinimum"); + } + + it = sch.find("multipleOf"); + if (it != sch.object_range().end()) + { + multiple_of_ = get_number(it->value(), "multipleOf"); + absolute_multiple_of_location_ = make_absolute_keyword_location(uris,"multipleOf"); + keywords.insert("multipleOf"); + } + } + + protected: + + void apply_kewords(T value, + const jsonpointer::json_pointer& instance_location, + const Json& instance, + error_reporter& reporter) const + { + if (multiple_of_ && value != 0) // exclude zero + { + if (!is_multiple_of(value, *multiple_of_)) + { + reporter.error(validation_output("multipleOf", + absolute_multiple_of_location_, + instance_location.to_uri_fragment(), + instance.template as() + " is not a multiple of " + std::to_string(*multiple_of_))); + if (reporter.fail_early()) + { + return; + } + } + } + + if (maximum_) + { + if (value > *maximum_) + { + reporter.error(validation_output("maximum", + absolute_maximum_location_, + instance_location.to_uri_fragment(), + instance.template as() + " exceeds maximum of " + std::to_string(*maximum_))); + if (reporter.fail_early()) + { + return; + } + } + } + + if (minimum_) + { + if (value < *minimum_) + { + reporter.error(validation_output("minimum", + absolute_minimum_location_, + instance_location.to_uri_fragment(), + instance.template as() + " is below minimum of " + std::to_string(*minimum_))); + if (reporter.fail_early()) + { + return; + } + } + } + + if (exclusive_maximum_) + { + if (value >= *exclusive_maximum_) + { + reporter.error(validation_output("exclusiveMaximum", + absolute_exclusive_maximum_location_, + instance_location.to_uri_fragment(), + instance.template as() + " exceeds maximum of " + std::to_string(*exclusive_maximum_))); + if (reporter.fail_early()) + { + return; + } + } + } + + if (exclusive_minimum_) + { + if (value <= *exclusive_minimum_) + { + reporter.error(validation_output("exclusiveMinimum", + absolute_exclusive_minimum_location_, + instance_location.to_uri_fragment(), + instance.template as() + " is below minimum of " + std::to_string(*exclusive_minimum_))); + if (reporter.fail_early()) + { + return; + } + } + } + } + private: + static bool is_multiple_of(T x, double multiple_of) + { + double rem = std::remainder(x, multiple_of); + double eps = std::nextafter(x, 0) - x; + return std::fabs(rem) < std::fabs(eps); + } + }; + + template + class integer_validator : public numeric_validator_base + { + public: + integer_validator(const Json& sch, + const std::vector& uris, + std::set& keywords) + : numeric_validator_base(sch, uris, keywords) + { + } + private: + void do_validate(const Json& instance, + const jsonpointer::json_pointer& instance_location, + error_reporter& reporter, + Json&) const + { + if (!(instance.template is_integer() || (instance.is_double() && static_cast(instance.template as()) == instance.template as()))) + { + reporter.error(validation_output("integer", + this->absolute_keyword_location(), + instance_location.to_uri_fragment(), + "Instance is not an integer")); + if (reporter.fail_early()) + { + return; + } + } + int64_t value = instance.template as(); + this->apply_kewords(value, instance_location, instance, reporter); + } + }; + + template + class number_validator : public numeric_validator_base + { + public: + number_validator(const Json& sch, + const std::vector& uris, + std::set& keywords) + : numeric_validator_base(sch, uris, keywords) + { + } + private: + void do_validate(const Json& instance, + const jsonpointer::json_pointer& instance_location, + error_reporter& reporter, + Json&) const + { + if (!(instance.template is_integer() || instance.is_double())) + { + reporter.error(validation_output("number", + this->absolute_keyword_location(), + instance_location.to_uri_fragment(), + "Instance is not a number")); + if (reporter.fail_early()) + { + return; + } + } + double value = instance.template as(); + this->apply_kewords(value, instance_location, instance, reporter); + } + }; + + // null_validator + + template + class null_validator : public keyword_validator + { + public: + null_validator(const std::vector& uris) + : keyword_validator((!uris.empty() && uris.back().is_absolute()) ? uris.back().string() : "") + { + } + private: + void do_validate(const Json& instance, + const jsonpointer::json_pointer& instance_location, + error_reporter& reporter, + Json&) const override + { + if (!instance.is_null()) + { + reporter.error(validation_output("null", + this->absolute_keyword_location(), + instance_location.to_uri_fragment(), + "Expected to be null")); + } + } + }; + + template + class boolean_validator : public keyword_validator + { + public: + boolean_validator(const std::vector& uris) + : keyword_validator((!uris.empty() && uris.back().is_absolute()) ? uris.back().string() : "") + { + } + private: + void do_validate(const Json&, + const jsonpointer::json_pointer&, + error_reporter&, + Json&) const override + { + } + + }; + + template + class true_validator : public keyword_validator + { + public: + true_validator(const std::vector& uris) + : keyword_validator((!uris.empty() && uris.back().is_absolute()) ? uris.back().string() : "") + { + } + private: + void do_validate(const Json&, + const jsonpointer::json_pointer&, + error_reporter&, + Json&) const override + { + } + }; + + template + class false_validator : public keyword_validator + { + public: + false_validator(const std::vector& uris) + : keyword_validator((!uris.empty() && uris.back().is_absolute()) ? uris.back().string() : "") + { + } + private: + void do_validate(const Json&, + const jsonpointer::json_pointer& instance_location, + error_reporter& reporter, + Json&) const override + { + reporter.error(validation_output("false", + this->absolute_keyword_location(), + instance_location.to_uri_fragment(), + "False schema always fails")); + } + }; + + template + class required_validator : public keyword_validator + { + using validator_pointer = typename keyword_validator::self_pointer; + + std::vector items_; + + public: + required_validator(const std::vector& uris, + const std::vector& items) + : keyword_validator((!uris.empty() && uris.back().is_absolute()) ? uris.back().string() : ""), items_(items) {} + required_validator(const std::string& absolute_keyword_location, const std::vector& items) + : keyword_validator(absolute_keyword_location), items_(items) {} + + required_validator(const required_validator&) = delete; + required_validator(required_validator&&) = default; + required_validator& operator=(const required_validator&) = delete; + required_validator& operator=(required_validator&&) = default; + private: + + void do_validate(const Json& instance, + const jsonpointer::json_pointer& instance_location, + error_reporter& reporter, + Json&) const override final + { + for (const auto& key : items_) + { + if (instance.find(key) == instance.object_range().end()) + { + reporter.error(validation_output("required", + this->absolute_keyword_location(), + instance_location.to_uri_fragment(), + "Required property \"" + key + "\" not found")); + if (reporter.fail_early()) + { + return; + } + } + } + } + }; + + template + class object_validator : public keyword_validator + { + using validator_pointer = typename keyword_validator::self_pointer; + + jsoncons::optional max_properties_; + std::string absolute_max_properties_location_; + jsoncons::optional min_properties_; + std::string absolute_min_properties_location_; + jsoncons::optional> required_; + + std::map properties_; + #if defined(JSONCONS_HAS_STD_REGEX) + std::vector> pattern_properties_; + #endif + validator_pointer additional_properties_; + + std::map dependencies_; + + validator_pointer property_name_validator_; + + public: + object_validator(abstract_keyword_validator_factory* builder, + const Json& sch, + const std::vector& uris) + : keyword_validator((!uris.empty() && uris.back().is_absolute()) ? uris.back().string() : ""), + max_properties_(), min_properties_(), + additional_properties_(nullptr), + property_name_validator_(nullptr) + { + auto it = sch.find("maxProperties"); + if (it != sch.object_range().end()) + { + max_properties_ = it->value().template as(); + absolute_max_properties_location_ = make_absolute_keyword_location(uris, "maxProperties"); + } + + it = sch.find("minProperties"); + if (it != sch.object_range().end()) + { + min_properties_ = it->value().template as(); + absolute_min_properties_location_ = make_absolute_keyword_location(uris, "minProperties"); + } + + it = sch.find("required"); + if (it != sch.object_range().end()) + { + auto location = make_absolute_keyword_location(uris, "required"); + required_ = required_validator(location, + it->value().template as>()); + } + + it = sch.find("properties"); + if (it != sch.object_range().end()) + { + for (const auto& prop : it->value().object_range()) + properties_.emplace( + std::make_pair( + prop.key(), + builder->make_keyword_validator(prop.value(), uris, {"properties", prop.key()}))); + } + + #if defined(JSONCONS_HAS_STD_REGEX) + it = sch.find("patternProperties"); + if (it != sch.object_range().end()) + { + for (const auto& prop : it->value().object_range()) + pattern_properties_.emplace_back( + std::make_pair( + std::regex(prop.key(), std::regex::ECMAScript), + builder->make_keyword_validator(prop.value(), uris, {prop.key()}))); + } + #endif + + it = sch.find("additionalProperties"); + if (it != sch.object_range().end()) + { + additional_properties_ = builder->make_keyword_validator(it->value(), uris, {"additionalProperties"}); + } + + it = sch.find("dependencies"); + if (it != sch.object_range().end()) + { + for (const auto& dep : it->value().object_range()) + { + switch (dep.value().type()) + { + case json_type::array_value: + { + auto location = make_absolute_keyword_location(uris, "dependencies"); + dependencies_.emplace(dep.key(), + builder->make_required_validator({location}, + dep.value().template as>())); + break; + } + default: + { + dependencies_.emplace(dep.key(), + builder->make_keyword_validator(dep.value(), uris, {"dependencies", dep.key()})); + break; + } + } + } + } + + auto property_names_it = sch.find("propertyNames"); + if (property_names_it != sch.object_range().end()) + { + property_name_validator_ = builder->make_keyword_validator(property_names_it->value(), uris, {"propertyNames"}); + } + } + private: + + void do_validate(const Json& instance, + const jsonpointer::json_pointer& instance_location, + error_reporter& reporter, + Json& patch) const override + { + if (max_properties_ && instance.size() > *max_properties_) + { + std::string message("Maximum properties: " + std::to_string(*max_properties_)); + message.append(", found: " + std::to_string(instance.size())); + reporter.error(validation_output("maxProperties", + absolute_max_properties_location_, + instance_location.to_uri_fragment(), + std::move(message))); + if (reporter.fail_early()) + { + return; + } + } + + if (min_properties_ && instance.size() < *min_properties_) + { + std::string message("Minimum properties: " + std::to_string(*min_properties_)); + message.append(", found: " + std::to_string(instance.size())); + reporter.error(validation_output("minProperties", + absolute_min_properties_location_, + instance_location.to_uri_fragment(), + std::move(message))); + if (reporter.fail_early()) + { + return; + } + } + + if (required_) + required_->validate(instance, instance_location, reporter, patch); + + for (const auto& property : instance.object_range()) + { + if (property_name_validator_) + property_name_validator_->validate(property.key(), instance_location, reporter, patch); + + bool a_prop_or_pattern_matched = false; + auto properties_it = properties_.find(property.key()); + + // check if it is in "properties" + if (properties_it != properties_.end()) + { + a_prop_or_pattern_matched = true; + jsonpointer::json_pointer pointer(instance_location); + pointer /= property.key(); + properties_it->second->validate(property.value(), pointer, reporter, patch); + } + + #if defined(JSONCONS_HAS_STD_REGEX) + + // check all matching "patternProperties" + for (auto& schema_pp : pattern_properties_) + if (std::regex_search(property.key(), schema_pp.first)) + { + a_prop_or_pattern_matched = true; + jsonpointer::json_pointer pointer(instance_location); + pointer /= property.key(); + schema_pp.second->validate(property.value(), pointer, reporter, patch); + } + #endif + + // finally, check "additionalProperties" + if (!a_prop_or_pattern_matched && additional_properties_) + { + collecting_error_reporter local_reporter; + + jsonpointer::json_pointer pointer(instance_location); + pointer /= property.key(); + additional_properties_->validate(property.value(), pointer, local_reporter, patch); + if (!local_reporter.errors.empty()) + { + reporter.error(validation_output("additionalProperties", + additional_properties_->absolute_keyword_location(), + instance_location.to_uri_fragment(), + "Additional property \"" + property.key() + "\" found but was invalid.")); + if (reporter.fail_early()) + { + return; + } + } + } + } + + // reverse search + for (auto const& prop : properties_) + { + const auto finding = instance.find(prop.first); + if (finding == instance.object_range().end()) + { + // If property is not in instance + auto default_value = prop.second->get_default_value(instance_location, instance, reporter); + if (default_value) + { + // If default value is available, update patch + jsonpointer::json_pointer pointer(instance_location); + pointer /= prop.first; + + update_patch(patch, pointer, std::move(*default_value)); + } + } + } + + for (const auto& dep : dependencies_) + { + auto prop = instance.find(dep.first); + if (prop != instance.object_range().end()) + { + // if dependency-property is present in instance + jsonpointer::json_pointer pointer(instance_location); + pointer /= dep.first; + dep.second->validate(instance, pointer, reporter, patch); // validate + } + } + } + + void update_patch(Json& patch, const jsonpointer::json_pointer& instance_location, Json&& default_value) const + { + Json j; + j.try_emplace("op", "add"); + j.try_emplace("path", instance_location.to_uri_fragment()); + j.try_emplace("value", std::forward(default_value)); + patch.push_back(std::move(j)); + } + }; + + // array_validator + + template + class array_validator : public keyword_validator + { + using validator_pointer = typename keyword_validator::self_pointer; + + jsoncons::optional max_items_; + std::string absolute_max_items_location_; + jsoncons::optional min_items_; + std::string absolute_min_items_location_; + bool unique_items_ = false; + validator_pointer items_validator_; + std::vector item_validators_; + validator_pointer additional_items_validator_; + validator_pointer contains_validator_; + + public: + array_validator(abstract_keyword_validator_factory* builder, + const Json& sch, + const std::vector& uris) + : keyword_validator((!uris.empty() && uris.back().is_absolute()) ? uris.back().string() : ""), + max_items_(), min_items_(), items_validator_(nullptr), additional_items_validator_(nullptr), contains_validator_(nullptr) + { + { + auto it = sch.find("maxItems"); + if (it != sch.object_range().end()) + { + max_items_ = it->value().template as(); + absolute_max_items_location_ = make_absolute_keyword_location(uris, "maxItems"); + } + } + + { + auto it = sch.find("minItems"); + if (it != sch.object_range().end()) + { + min_items_ = it->value().template as(); + absolute_min_items_location_ = make_absolute_keyword_location(uris, "minItems"); + } + } + + { + auto it = sch.find("uniqueItems"); + if (it != sch.object_range().end()) + { + unique_items_ = it->value().template as(); + } + } + + { + auto it = sch.find("items"); + if (it != sch.object_range().end()) + { + + if (it->value().type() == json_type::array_value) + { + size_t c = 0; + for (const auto& subsch : it->value().array_range()) + item_validators_.push_back(builder->make_keyword_validator(subsch, uris, {"items", std::to_string(c++)})); + + auto attr_add = sch.find("additionalItems"); + if (attr_add != sch.object_range().end()) + { + additional_items_validator_ = builder->make_keyword_validator(attr_add->value(), uris, {"additionalItems"}); + } + + } + else if (it->value().type() == json_type::object_value || + it->value().type() == json_type::bool_value) + { + items_validator_ = builder->make_keyword_validator(it->value(), uris, {"items"}); + } + + } + } + + { + auto it = sch.find("contains"); + if (it != sch.object_range().end()) + { + contains_validator_ = builder->make_keyword_validator(it->value(), uris, {"contains"}); + } + } + } + private: + + void do_validate(const Json& instance, + const jsonpointer::json_pointer& instance_location, + error_reporter& reporter, + Json& patch) const override + { + if (max_items_) + { + if (instance.size() > *max_items_) + { + std::string message("Expected maximum item count: " + std::to_string(*max_items_)); + message.append(", found: " + std::to_string(instance.size())); + reporter.error(validation_output("maxItems", + absolute_max_items_location_, + instance_location.to_uri_fragment(), + std::move(message))); + if (reporter.fail_early()) + { + return; + } + } + } + + if (min_items_) + { + if (instance.size() < *min_items_) + { + std::string message("Expected minimum item count: " + std::to_string(*min_items_)); + message.append(", found: " + std::to_string(instance.size())); + reporter.error(validation_output("minItems", + absolute_min_items_location_, + instance_location.to_uri_fragment(), + std::move(message))); + if (reporter.fail_early()) + { + return; + } + } + } + + if (unique_items_) + { + if (!array_has_unique_items(instance)) + { + reporter.error(validation_output("uniqueItems", + this->absolute_keyword_location(), + instance_location.to_uri_fragment(), + "Array items are not unique")); + if (reporter.fail_early()) + { + return; + } + } + } + + size_t index = 0; + if (items_validator_) + { + for (const auto& i : instance.array_range()) + { + jsonpointer::json_pointer pointer(instance_location); + pointer /= index; + items_validator_->validate(i, pointer, reporter, patch); + index++; + } + } + else + { + auto validator_it = item_validators_.cbegin(); + for (const auto& item : instance.array_range()) + { + validator_pointer item_validator = nullptr; + if (validator_it != item_validators_.cend()) + { + item_validator = *validator_it; + ++validator_it; + } + else if (additional_items_validator_ != nullptr) + { + item_validator = additional_items_validator_; + } + else + break; + + jsonpointer::json_pointer pointer(instance_location); + pointer /= index; + item_validator->validate(item, pointer, reporter, patch); + } + } + + if (contains_validator_) + { + bool contained = false; + collecting_error_reporter local_reporter; + for (const auto& item : instance.array_range()) + { + std::size_t mark = local_reporter.errors.size(); + contains_validator_->validate(item, instance_location, local_reporter, patch); + if (mark == local_reporter.errors.size()) + { + contained = true; + break; + } + } + if (!contained) + { + reporter.error(validation_output("contains", + this->absolute_keyword_location(), + instance_location.to_uri_fragment(), + "Expected at least one array item to match \"contains\" schema", + local_reporter.errors)); + if (reporter.fail_early()) + { + return; + } + } + } + } + + static bool array_has_unique_items(const Json& a) + { + for (auto it = a.array_range().begin(); it != a.array_range().end(); ++it) + { + for (auto jt = it+1; jt != a.array_range().end(); ++jt) + { + if (*it == *jt) + { + return false; // contains duplicates + } + } + } + return true; // elements are unique + } + }; + + template + class conditional_validator : public keyword_validator + { + using validator_pointer = typename keyword_validator::self_pointer; + + validator_pointer if_validator_; + validator_pointer then_validator_; + validator_pointer else_validator_; + + public: + conditional_validator(abstract_keyword_validator_factory* builder, + const Json& sch_if, + const Json& sch, + const std::vector& uris) + : keyword_validator((!uris.empty() && uris.back().is_absolute()) ? uris.back().string() : ""), if_validator_(nullptr), then_validator_(nullptr), else_validator_(nullptr) + { + auto then_it = sch.find("then"); + auto else_it = sch.find("else"); + + if (then_it != sch.object_range().end() || else_it != sch.object_range().end()) + { + if_validator_ = builder->make_keyword_validator(sch_if, uris, {"if"}); + + if (then_it != sch.object_range().end()) + { + then_validator_ = builder->make_keyword_validator(then_it->value(), uris, {"then"}); + } + + if (else_it != sch.object_range().end()) + { + else_validator_ = builder->make_keyword_validator(else_it->value(), uris, {"else"}); + } + } + } + private: + void do_validate(const Json& instance, + const jsonpointer::json_pointer& instance_location, + error_reporter& reporter, + Json& patch) const final + { + if (if_validator_) + { + collecting_error_reporter local_reporter; + + if_validator_->validate(instance, instance_location, local_reporter, patch); + if (local_reporter.errors.empty()) + { + if (then_validator_) + then_validator_->validate(instance, instance_location, reporter, patch); + } + else + { + if (else_validator_) + else_validator_->validate(instance, instance_location, reporter, patch); + } + } + } + }; + + // enum_validator + + template + class enum_validator : public keyword_validator + { + Json enum_validator_; + + public: + enum_validator(const Json& sch, + const std::vector& uris) + : keyword_validator((!uris.empty() && uris.back().is_absolute()) ? uris.back().string() : ""), enum_validator_(sch) + { + } + private: + void do_validate(const Json& instance, + const jsonpointer::json_pointer& instance_location, + error_reporter& reporter, + Json&) const final + { + bool in_range = false; + for (const auto& item : enum_validator_.array_range()) + { + if (item == instance) + { + in_range = true; + break; + } + } + + if (!in_range) + { + reporter.error(validation_output("enum", + this->absolute_keyword_location(), + instance_location.to_uri_fragment(), + instance.template as() + " is not a valid enum value")); + if (reporter.fail_early()) + { + return; + } + } + } + }; + + // const_keyword + + template + class const_keyword : public keyword_validator + { + Json const_validator_; + + public: + const_keyword(const Json& sch, const std::vector& uris) + : keyword_validator((!uris.empty() && uris.back().is_absolute()) ? uris.back().string() : ""), const_validator_(sch) + { + } + private: + void do_validate(const Json& instance, + const jsonpointer::json_pointer& instance_location, + error_reporter& reporter, + Json&) const final + { + if (const_validator_ != instance) + reporter.error(validation_output("const", + this->absolute_keyword_location(), + instance_location.to_uri_fragment(), + "Instance is not const")); + } + }; + + template + class type_validator : public keyword_validator + { + using validator_pointer = typename keyword_validator::self_pointer; + + Json default_value_; + std::vector type_mapping_; + jsoncons::optional> enum_validator_; + jsoncons::optional> const_validator_; + std::vector combined_validators_; + jsoncons::optional> conditional_validator_; + std::vector expected_types_; + + public: + type_validator(const type_validator&) = delete; + type_validator& operator=(const type_validator&) = delete; + type_validator(type_validator&&) = default; + type_validator& operator=(type_validator&&) = default; + + type_validator(abstract_keyword_validator_factory* builder, + const Json& sch, + const std::vector& uris) + : keyword_validator((!uris.empty() && uris.back().is_absolute()) ? uris.back().string() : ""), default_value_(jsoncons::null_type()), + type_mapping_((uint8_t)(json_type::object_value)+1), + enum_validator_(), const_validator_() + { + //std::cout << uris.size() << " uris: "; + //for (const auto& uri : uris) + //{ + // std::cout << uri.string() << ", "; + //} + //std::cout << "\n"; + std::set known_keywords; + + auto it = sch.find("type"); + if (it == sch.object_range().end()) + { + initialize_type_mapping(builder, "", sch, uris, known_keywords); + } + else + { + switch (it->value().type()) + { + case json_type::string_value: + { + auto type = it->value().template as(); + initialize_type_mapping(builder, type, sch, uris, known_keywords); + expected_types_.emplace_back(std::move(type)); + break; + } + + case json_type::array_value: // "type": ["type1", "type2"] + { + for (const auto& item : it->value().array_range()) + { + auto type = item.template as(); + initialize_type_mapping(builder, type, sch, uris, known_keywords); + expected_types_.emplace_back(std::move(type)); + } + break; + } + default: + break; + } + } + + const auto default_it = sch.find("default"); + if (default_it != sch.object_range().end()) + { + default_value_ = default_it->value(); + } + + it = sch.find("enum"); + if (it != sch.object_range().end()) + { + enum_validator_ = enum_validator(it->value(), uris); + } + + it = sch.find("const"); + if (it != sch.object_range().end()) + { + const_validator_ = const_keyword(it->value(), uris); + } + + it = sch.find("not"); + if (it != sch.object_range().end()) + { + combined_validators_.push_back(builder->make_not_validator(it->value(), uris)); + } + + it = sch.find("allOf"); + if (it != sch.object_range().end()) + { + combined_validators_.push_back(builder->make_all_of_validator(it->value(), uris)); + } + + it = sch.find("anyOf"); + if (it != sch.object_range().end()) + { + combined_validators_.push_back(builder->make_any_of_validator(it->value(), uris)); + } + + it = sch.find("oneOf"); + if (it != sch.object_range().end()) + { + combined_validators_.push_back(builder->make_one_of_validator(it->value(), uris)); + } + + it = sch.find("if"); + if (it != sch.object_range().end()) + { + conditional_validator_ = conditional_validator(builder, it->value(), sch, uris); + } + } + private: + + void do_validate(const Json& instance, + const jsonpointer::json_pointer& instance_location, + error_reporter& reporter, + Json& patch) const override final + { + auto type = type_mapping_[(uint8_t) instance.type()]; + + if (type) + type->validate(instance, instance_location, reporter, patch); + else + { + std::ostringstream ss; + ss << "Expected "; + for (std::size_t i = 0; i < expected_types_.size(); ++i) + { + if (i > 0) + { + ss << ", "; + if (i+1 == expected_types_.size()) + { + ss << "or "; + } + } + ss << expected_types_[i]; + } + ss << ", found " << instance.type(); + + reporter.error(validation_output("type", + this->absolute_keyword_location(), + instance_location.to_uri_fragment(), + ss.str())); + if (reporter.fail_early()) + { + return; + } + } + + if (enum_validator_) + { + enum_validator_->validate(instance, instance_location, reporter, patch); + if (reporter.error_count() > 0 && reporter.fail_early()) + { + return; + } + } + + if (const_validator_) + { + const_validator_->validate(instance, instance_location, reporter, patch); + if (reporter.error_count() > 0 && reporter.fail_early()) + { + return; + } + } + + for (const auto& validator : combined_validators_) + { + validator->validate(instance, instance_location, reporter, patch); + if (reporter.error_count() > 0 && reporter.fail_early()) + { + return; + } + } + + + if (conditional_validator_) + { + conditional_validator_->validate(instance, instance_location, reporter, patch); + if (reporter.error_count() > 0 && reporter.fail_early()) + { + return; + } + } + } + + jsoncons::optional get_default_value(const jsonpointer::json_pointer&, + const Json&, + error_reporter&) const override + { + return default_value_; + } + + void initialize_type_mapping(abstract_keyword_validator_factory* builder, + const std::string& type, + const Json& sch, + const std::vector& uris, + std::set& keywords) + { + if (type == "null") + { + type_mapping_[(uint8_t)json_type::null_value] = builder->make_null_validator(uris); + } + else if (type == "object") + { + type_mapping_[(uint8_t)json_type::object_value] = builder->make_object_validator(sch, uris); + } + else if (type == "array") + { + type_mapping_[(uint8_t)json_type::array_value] = builder->make_array_validator(sch, uris); + } + else if (type == "string") + { + type_mapping_[(uint8_t)json_type::string_value] = builder->make_string_validator(sch, uris); + // For binary types + type_mapping_[(uint8_t) json_type::byte_string_value] = type_mapping_[(uint8_t) json_type::string_value]; + } + else if (type == "boolean") + { + type_mapping_[(uint8_t)json_type::bool_value] = builder->make_boolean_validator(uris); + } + else if (type == "integer") + { + type_mapping_[(uint8_t)json_type::int64_value] = builder->make_integer_validator(sch, uris, keywords); + type_mapping_[(uint8_t)json_type::uint64_value] = type_mapping_[(uint8_t)json_type::int64_value]; + type_mapping_[(uint8_t)json_type::double_value] = type_mapping_[(uint8_t)json_type::int64_value]; + } + else if (type == "number") + { + type_mapping_[(uint8_t)json_type::double_value] = builder->make_number_validator(sch, uris, keywords); + type_mapping_[(uint8_t)json_type::int64_value] = type_mapping_[(uint8_t)json_type::double_value]; + type_mapping_[(uint8_t)json_type::uint64_value] = type_mapping_[(uint8_t)json_type::double_value]; + } + else if (type.empty()) + { + type_mapping_[(uint8_t)json_type::null_value] = builder->make_null_validator(uris); + type_mapping_[(uint8_t)json_type::object_value] = builder->make_object_validator(sch, uris); + type_mapping_[(uint8_t)json_type::array_value] = builder->make_array_validator(sch, uris); + type_mapping_[(uint8_t)json_type::string_value] = builder->make_string_validator(sch, uris); + // For binary types + type_mapping_[(uint8_t) json_type::byte_string_value] = type_mapping_[(uint8_t) json_type::string_value]; + type_mapping_[(uint8_t)json_type::bool_value] = builder->make_boolean_validator(uris); + type_mapping_[(uint8_t)json_type::int64_value] = builder->make_integer_validator(sch, uris, keywords); + type_mapping_[(uint8_t)json_type::uint64_value] = type_mapping_[(uint8_t)json_type::int64_value]; + type_mapping_[(uint8_t)json_type::double_value] = type_mapping_[(uint8_t)json_type::int64_value]; + type_mapping_[(uint8_t)json_type::double_value] = builder->make_number_validator(sch, uris, keywords); + type_mapping_[(uint8_t)json_type::int64_value] = type_mapping_[(uint8_t)json_type::double_value]; + type_mapping_[(uint8_t)json_type::uint64_value] = type_mapping_[(uint8_t)json_type::double_value]; + } + } + }; + +} // namespace jsonschema +} // namespace jsoncons + +#endif // JSONCONS_JSONSCHEMA_VALUE_RULES_HPP diff --git a/include/jsoncons_ext/jsonschema/keyword_validator_factory.hpp b/include/jsoncons_ext/jsonschema/keyword_validator_factory.hpp new file mode 100644 index 0000000..f538105 --- /dev/null +++ b/include/jsoncons_ext/jsonschema/keyword_validator_factory.hpp @@ -0,0 +1,556 @@ +// Copyright 2020 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSONSCHEMA_KEYWORD_VALIDATOR_FACTORY_HPP +#define JSONCONS_JSONSCHEMA_KEYWORD_VALIDATOR_FACTORY_HPP + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#if defined(JSONCONS_HAS_STD_REGEX) +#include +#endif + +namespace jsoncons { +namespace jsonschema { + + template + using uri_resolver = std::function; + + template + class reference_schema : public keyword_validator + { + using validator_pointer = typename keyword_validator::self_pointer; + + validator_pointer referred_schema_; + + public: + reference_schema(const std::string& id) + : keyword_validator(id), referred_schema_(nullptr) {} + + void set_referred_schema(validator_pointer target) { referred_schema_ = target; } + + private: + + void do_validate(const Json& instance, + const jsonpointer::json_pointer& instance_location, + error_reporter& reporter, + Json& patch) const override + { + if (!referred_schema_) + { + reporter.error(validation_output("", + this->absolute_keyword_location(), + instance_location.to_uri_fragment(), + "Unresolved schema reference " + this->absolute_keyword_location())); + return; + } + + referred_schema_->validate(instance, instance_location, reporter, patch); + } + + jsoncons::optional get_default_value(const jsonpointer::json_pointer& instance_location, + const Json& instance, + error_reporter& reporter) const override + { + if (!referred_schema_) + { + reporter.error(validation_output("", + this->absolute_keyword_location(), + instance_location.to_uri_fragment(), + "Unresolved schema reference " + this->absolute_keyword_location())); + return jsoncons::optional(); + } + + return referred_schema_->get_default_value(instance_location, instance, reporter); + } + }; + + template + class keyword_validator_factory; + + template + class json_schema + { + using validator_pointer = typename keyword_validator::self_pointer; + + friend class keyword_validator_factory; + + std::vector>> subschemas_; + validator_pointer root_; + public: + json_schema(std::vector>>&& subschemas, + validator_pointer root) + : subschemas_(std::move(subschemas)), root_(root) + { + if (root_ == nullptr) + JSONCONS_THROW(schema_error("There is no root schema to validate an instance against")); + } + + json_schema(const json_schema&) = delete; + json_schema(json_schema&&) = default; + json_schema& operator=(const json_schema&) = delete; + json_schema& operator=(json_schema&&) = default; + + void validate(const Json& instance, + const jsonpointer::json_pointer& instance_location, + error_reporter& reporter, + Json& patch) const + { + JSONCONS_ASSERT(root_ != nullptr); + root_->validate(instance, instance_location, reporter, patch); + } + }; + + template + struct default_uri_resolver + { + Json operator()(const jsoncons::uri& uri) + { + if (uri.path() == "/draft-07/schema") + { + return jsoncons::jsonschema::schema_draft7::get_schema(); + } + + JSONCONS_THROW(jsonschema::schema_error("Don't know how to load JSON Schema " + std::string(uri.base()))); + } + }; + + template + class keyword_validator_factory : public abstract_keyword_validator_factory + { + using validator_pointer = typename keyword_validator::self_pointer; + + struct subschema_registry + { + std::map schemas; // schemas + std::map*> unresolved; // unresolved references + std::map unprocessed_keywords; + }; + + uri_resolver resolver_; + validator_pointer root_; + + // Owns all schemas + std::vector>> subschemas_; + + // Map location to subschema_registry + std::map subschema_registries_; + + public: + keyword_validator_factory(uri_resolver&& resolver) noexcept + + : resolver_(std::move(resolver)) + { + } + + keyword_validator_factory(const keyword_validator_factory&) = delete; + keyword_validator_factory& operator=(const keyword_validator_factory&) = delete; + keyword_validator_factory(keyword_validator_factory&&) = default; + keyword_validator_factory& operator=(keyword_validator_factory&&) = default; + + std::shared_ptr> get_schema() + { + return std::make_shared>(std::move(subschemas_), root_); + } + + validator_pointer make_required_validator(const std::vector& uris, + const std::vector& r) override + { + auto sch_orig = jsoncons::make_unique>(uris, r); + auto sch = sch_orig.get(); + subschemas_.emplace_back(std::move(sch_orig)); + return sch; + } + + validator_pointer make_null_validator(const std::vector& uris) override + { + auto sch_orig = jsoncons::make_unique>(uris); + auto sch = sch_orig.get(); + subschemas_.emplace_back(std::move(sch_orig)); + return sch; + } + + validator_pointer make_true_validator(const std::vector& uris) override + { + auto sch_orig = jsoncons::make_unique>(uris); + auto sch = sch_orig.get(); + subschemas_.emplace_back(std::move(sch_orig)); + return sch; + } + + validator_pointer make_false_validator(const std::vector& uris) override + { + auto sch_orig = jsoncons::make_unique>(uris); + auto sch = sch_orig.get(); + subschemas_.emplace_back(std::move(sch_orig)); + return sch; + } + + validator_pointer make_object_validator(const Json& schema, + const std::vector& uris) override + { + auto sch_orig = jsoncons::make_unique>(this, schema, uris); + auto sch = sch_orig.get(); + subschemas_.emplace_back(std::move(sch_orig)); + return sch; + } + + validator_pointer make_array_validator(const Json& schema, + const std::vector& uris) override + { + auto sch_orig = jsoncons::make_unique>(this, schema, uris); + auto sch = sch_orig.get(); + subschemas_.emplace_back(std::move(sch_orig)); + return sch; + } + + validator_pointer make_string_validator(const Json& schema, + const std::vector& uris) override + { + auto sch_orig = jsoncons::make_unique>(schema, uris); + auto sch = sch_orig.get(); + subschemas_.emplace_back(std::move(sch_orig)); + return sch; + } + + validator_pointer make_boolean_validator(const std::vector& uris) override + { + auto sch_orig = jsoncons::make_unique>(uris); + auto sch = sch_orig.get(); + subschemas_.emplace_back(std::move(sch_orig)); + return sch; + } + + validator_pointer make_integer_validator(const Json& schema, + const std::vector& uris, + std::set& keywords) override + { + auto sch_orig = jsoncons::make_unique>(schema, uris, keywords); + auto sch = sch_orig.get(); + subschemas_.emplace_back(std::move(sch_orig)); + return sch; + } + + validator_pointer make_number_validator(const Json& schema, + const std::vector& uris, + std::set& keywords) override + { + auto sch_orig = jsoncons::make_unique>(schema, uris, keywords); + auto sch = sch_orig.get(); + subschemas_.emplace_back(std::move(sch_orig)); + return sch; + } + + validator_pointer make_not_validator(const Json& schema, + const std::vector& uris) override + { + auto sch_orig = jsoncons::make_unique>(this, schema, uris); + auto sch = sch_orig.get(); + subschemas_.emplace_back(std::move(sch_orig)); + return sch; + } + + validator_pointer make_all_of_validator(const Json& schema, + const std::vector& uris) override + { + auto sch_orig = jsoncons::make_unique>>(this, schema, uris); + auto sch = sch_orig.get(); + subschemas_.emplace_back(std::move(sch_orig)); + return sch; + } + + validator_pointer make_any_of_validator(const Json& schema, + const std::vector& uris) override + { + auto sch_orig = jsoncons::make_unique>>(this, schema, uris); + auto sch = sch_orig.get(); + subschemas_.emplace_back(std::move(sch_orig)); + return sch; + } + + validator_pointer make_one_of_validator(const Json& schema, + const std::vector& uris) override + { + auto sch_orig = jsoncons::make_unique>>(this, schema, uris); + auto sch = sch_orig.get(); + subschemas_.emplace_back(std::move(sch_orig)); + return sch; + } + + validator_pointer make_type_validator(const Json& schema, + const std::vector& uris) override + { + auto sch_orig = jsoncons::make_unique>(this, schema, uris); + auto sch = sch_orig.get(); + subschemas_.emplace_back(std::move(sch_orig)); + return sch; + } + + validator_pointer make_keyword_validator(const Json& schema, + const std::vector& uris, + const std::vector& keys) override + { + std::vector new_uris = update_uris(schema, uris, keys); + + validator_pointer sch = nullptr; + + switch (schema.type()) + { + case json_type::bool_value: + if (schema.template as()) + { + sch = make_true_validator(new_uris); + } + else + { + sch = make_false_validator(new_uris); + } + break; + case json_type::object_value: + { + auto it = schema.find("definitions"); + if (it != schema.object_range().end()) + { + for (const auto& def : it->value().object_range()) + make_keyword_validator(def.value(), new_uris, {"definitions", def.key()}); + } + + it = schema.find("$ref"); + if (it != schema.object_range().end()) // this schema is a reference + { + schema_location relative(it->value().template as()); + schema_location id = relative.resolve(new_uris.back()); + sch = get_or_create_reference(id); + } + else + { + sch = make_type_validator(schema, new_uris); + } + break; + } + default: + JSONCONS_THROW(schema_error("invalid JSON-type for a schema for " + new_uris[0].string() + ", expected: boolean or object")); + break; + } + + for (const auto& uri : new_uris) + { + insert(uri, sch); + + if (schema.type() == json_type::object_value) + { + for (const auto& item : schema.object_range()) + insert_unknown_keyword(uri, item.key(), item.value()); // save unknown keywords for later reference + } + } + return sch; + } + + void load_root(const Json& sch) + { + if (sch.is_object()) + { + auto it = sch.find("$schema"); + if (it != sch.object_range().end()) + { + auto sv = it->value().as_string_view(); + if (!schema_version::contains(sv)) + { + std::string message("Unsupported schema version "); + message.append(sv.data(), sv.size()); + JSONCONS_THROW(schema_error(message)); + } + } + } + load(sch); + } + + void load(const Json& sch) + { + subschema_registries_.clear(); + root_ = make_keyword_validator(sch, {{"#"}}, {}); + + // load all external schemas that have not already been loaded + + std::size_t loaded_count = 0; + do + { + loaded_count = 0; + + std::vector locations; + for (const auto& item : subschema_registries_) + locations.push_back(item.first); + + for (const auto& loc : locations) + { + if (subschema_registries_[loc].schemas.empty()) // registry for this file is empty + { + if (resolver_) + { + Json external_schema = resolver_(loc); + make_keyword_validator(external_schema, {{loc}}, {}); + ++loaded_count; + } + else + { + JSONCONS_THROW(schema_error("External schema reference '" + loc + "' needs to be loaded, but no resolver provided")); + } + } + } + } + while (loaded_count > 0); + + for (const auto &file : subschema_registries_) + { + if (!file.second.unresolved.empty()) + { + JSONCONS_THROW(schema_error("after all files have been parsed, '" + + (file.first == "" ? "" : file.first) + + "' has still undefined references.")); + } + } + } + + private: + + void insert(const schema_location& uri, validator_pointer s) + { + auto& file = get_or_create_file(std::string(uri.base())); + auto schemas_it = file.schemas.find(std::string(uri.fragment())); + if (schemas_it != file.schemas.end()) + { + JSONCONS_THROW(schema_error("schema with " + uri.string() + " already inserted")); + return; + } + + file.schemas.insert({std::string(uri.fragment()), s}); + + // is there an unresolved reference to this newly inserted schema? + auto unresolved_it = file.unresolved.find(std::string(uri.fragment())); + if (unresolved_it != file.unresolved.end()) + { + unresolved_it->second->set_referred_schema(s); + file.unresolved.erase(unresolved_it); + + } + } + + void insert_unknown_keyword(const schema_location& uri, + const std::string& key, + const Json& value) + { + auto &file = get_or_create_file(std::string(uri.base())); + auto new_u = uri.append(key); + schema_location new_uri(new_u); + + if (new_uri.has_fragment() && !new_uri.has_identifier()) + { + auto fragment = std::string(new_uri.fragment()); + // is there a reference looking for this unknown-keyword, which is thus no longer a unknown keyword but a schema + auto unresolved = file.unresolved.find(fragment); + if (unresolved != file.unresolved.end()) + make_keyword_validator(value, {{new_uri}}, {}); + else // no, nothing ref'd it, keep for later + file.unprocessed_keywords[fragment] = value; + + // recursively add possible subschemas of unknown keywords + if (value.type() == json_type::object_value) + for (const auto& subsch : value.object_range()) + { + insert_unknown_keyword(new_uri, subsch.key(), subsch.value()); + } + } + } + + validator_pointer get_or_create_reference(const schema_location& uri) + { + auto &file = get_or_create_file(std::string(uri.base())); + + // a schema already exists + auto sch = file.schemas.find(std::string(uri.fragment())); + if (sch != file.schemas.end()) + return sch->second; + + // referencing an unknown keyword, turn it into schema + // + // an unknown keyword can only be referenced by a JSONPointer, + // not by a plain name identifier + if (uri.has_fragment() && !uri.has_identifier()) + { + std::string fragment = std::string(uri.fragment()); + auto unprocessed_keywords_it = file.unprocessed_keywords.find(fragment); + if (unprocessed_keywords_it != file.unprocessed_keywords.end()) + { + auto &subsch = unprocessed_keywords_it->second; + auto s = make_keyword_validator(subsch, {{uri}}, {}); // A JSON Schema MUST be an object or a boolean. + file.unprocessed_keywords.erase(unprocessed_keywords_it); + return s; + } + } + + // get or create a reference_schema + auto ref = file.unresolved.find(std::string(uri.fragment())); + if (ref != file.unresolved.end()) + { + return ref->second; // unresolved, use existing reference + } + else + { + auto orig = jsoncons::make_unique>(uri.string()); + auto p = file.unresolved.insert(ref, + {std::string(uri.fragment()), orig.get()}) + ->second; // unresolved, create new reference + + subschemas_.emplace_back(std::move(orig)); + return p; + } + } + + subschema_registry& get_or_create_file(const std::string& loc) + { + auto file = subschema_registries_.find(loc); + if (file != subschema_registries_.end()) + return file->second; + else + return subschema_registries_.insert(file, {loc, {}})->second; + } + + }; + + template + std::shared_ptr> make_schema(const Json& schema) + { + keyword_validator_factory loader{default_uri_resolver()}; + loader.load_root(schema); + + return loader.get_schema(); + } + + template + typename std::enable_if::value,std::shared_ptr>>::type + make_schema(const Json& schema, const URIResolver& resolver) + { + keyword_validator_factory loader(resolver); + loader.load_root(schema); + + return loader.get_schema(); + } + +} // namespace jsonschema +} // namespace jsoncons + +#endif // JSONCONS_JSONSCHEMA_SCHEMA_LOADER_HPP diff --git a/include/jsoncons_ext/jsonschema/schema_draft7.hpp b/include/jsoncons_ext/jsonschema/schema_draft7.hpp new file mode 100644 index 0000000..c6f6fbc --- /dev/null +++ b/include/jsoncons_ext/jsonschema/schema_draft7.hpp @@ -0,0 +1,198 @@ +// Copyright 2020 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSONSCHEMA_SCHEMA_DRAFT7_HPP +#define JSONCONS_JSONSCHEMA_SCHEMA_DRAFT7_HPP + +#include + +namespace jsoncons { +namespace jsonschema { + + template + struct schema_draft7 + { + static Json get_schema() + { + static Json schema = Json::parse(R"( + { + "$schema": "http://json-schema.org/draft-07/schema#", + "$id": "http://json-schema.org/draft-07/schema#", + "title": "Core schema meta-schema", + "definitions": { + "schemaArray": { + "type": "array", + "minItems": 1, + "items": { "$ref": "#" } + }, + "nonNegativeInteger": { + "type": "integer", + "minimum": 0 + }, + "nonNegativeIntegerDefault0": { + "allOf": [ + { "$ref": "#/definitions/nonNegativeInteger" }, + { "default": 0 } + ] + }, + "simpleTypes": { + "enum": [ + "array", + "boolean", + "integer", + "null", + "number", + "object", + "string" + ] + }, + "stringArray": { + "type": "array", + "items": { "type": "string" }, + "uniqueItems": true, + "default": [] + } + }, + "type": ["object", "boolean"], + "properties": { + "$id": { + "type": "string", + "format": "uri-reference" + }, + "$schema": { + "type": "string", + "format": "uri" + }, + "$ref": { + "type": "string", + "format": "uri-reference" + }, + "$comment": { + "type": "string" + }, + "title": { + "type": "string" + }, + "description": { + "type": "string" + }, + "default": true, + "readOnly": { + "type": "boolean", + "default": false + }, + "examples": { + "type": "array", + "items": true + }, + "multipleOf": { + "type": "number", + "exclusiveMinimum": 0 + }, + "maximum": { + "type": "number" + }, + "exclusiveMaximum": { + "type": "number" + }, + "minimum": { + "type": "number" + }, + "exclusiveMinimum": { + "type": "number" + }, + "maxLength": { "$ref": "#/definitions/nonNegativeInteger" }, + "minLength": { "$ref": "#/definitions/nonNegativeIntegerDefault0" }, + "pattern": { + "type": "string", + "format": "regex" + }, + "additionalItems": { "$ref": "#" }, + "items": { + "anyOf": [ + { "$ref": "#" }, + { "$ref": "#/definitions/schemaArray" } + ], + "default": true + }, + "maxItems": { "$ref": "#/definitions/nonNegativeInteger" }, + "minItems": { "$ref": "#/definitions/nonNegativeIntegerDefault0" }, + "uniqueItems": { + "type": "boolean", + "default": false + }, + "contains": { "$ref": "#" }, + "maxProperties": { "$ref": "#/definitions/nonNegativeInteger" }, + "minProperties": { "$ref": "#/definitions/nonNegativeIntegerDefault0" }, + "required": { "$ref": "#/definitions/stringArray" }, + "additionalProperties": { "$ref": "#" }, + "definitions": { + "type": "object", + "additionalProperties": { "$ref": "#" }, + "default": {} + }, + "properties": { + "type": "object", + "additionalProperties": { "$ref": "#" }, + "default": {} + }, + "patternProperties": { + "type": "object", + "additionalProperties": { "$ref": "#" }, + "propertyNames": { "format": "regex" }, + "default": {} + }, + "dependencies": { + "type": "object", + "additionalProperties": { + "anyOf": [ + { "$ref": "#" }, + { "$ref": "#/definitions/stringArray" } + ] + } + }, + "propertyNames": { "$ref": "#" }, + "const": true, + "enum": { + "type": "array", + "items": true, + "minItems": 1, + "uniqueItems": true + }, + "type": { + "anyOf": [ + { "$ref": "#/definitions/simpleTypes" }, + { + "type": "array", + "items": { "$ref": "#/definitions/simpleTypes" }, + "minItems": 1, + "uniqueItems": true + } + ] + }, + "format": { "type": "string" }, + "contentMediaType": { "type": "string" }, + "contentEncoding": { "type": "string" }, + "if": { "$ref": "#" }, + "then": { "$ref": "#" }, + "else": { "$ref": "#" }, + "allOf": { "$ref": "#/definitions/schemaArray" }, + "anyOf": { "$ref": "#/definitions/schemaArray" }, + "oneOf": { "$ref": "#/definitions/schemaArray" }, + "not": { "$ref": "#" } + }, + "default": true + } + )"); + + return schema; + } + }; + +} // namespace jsonschema +} // namespace jsoncons + +#endif // JSONCONS_JSONSCHEMA_SCHEMA_DRAFT7_HPP diff --git a/include/jsoncons_ext/jsonschema/schema_location.hpp b/include/jsoncons_ext/jsonschema/schema_location.hpp new file mode 100644 index 0000000..fd1a743 --- /dev/null +++ b/include/jsoncons_ext/jsonschema/schema_location.hpp @@ -0,0 +1,200 @@ +// Copyright 2020 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSONSCHEMA_SCHEMA_LOCATION_HPP +#define JSONCONS_JSONSCHEMA_SCHEMA_LOCATION_HPP + +#include +#include +#include +#include +#include + +namespace jsoncons { +namespace jsonschema { + + class schema_location + { + jsoncons::uri uri_; + std::string identifier_; + public: + schema_location() + { + } + + schema_location(const std::string& uri) + { + auto pos = uri.find('#'); + if (pos != std::string::npos) + { + identifier_ = uri.substr(pos + 1); + unescape_percent(identifier_); + } + uri_ = jsoncons::uri(uri); + } + + jsoncons::uri uri() const + { + return uri_; + } + + bool has_fragment() const + { + return !identifier_.empty(); + } + + bool has_identifier() const + { + return !identifier_.empty() && identifier_.front() != '/'; + } + + jsoncons::string_view base() const + { + return uri_.base(); + } + + jsoncons::string_view path() const + { + return uri_.path(); + } + + bool is_absolute() const + { + return uri_.is_absolute(); + } + + std::string identifier() const + { + return identifier_; + } + + std::string fragment() const + { + return identifier_; + } + + schema_location resolve(const schema_location& uri) const + { + schema_location new_uri; + new_uri.identifier_ = identifier_; + new_uri.uri_ = uri_.resolve(uri.uri_); + return new_uri; + } + + int compare(const schema_location& other) const + { + int result = uri_.compare(other.uri_); + if (result != 0) + { + return result; + } + return result; + } + + schema_location append(const std::string& field) const + { + if (has_identifier()) + return *this; + + jsoncons::jsonpointer::json_pointer pointer(std::string(uri_.fragment())); + pointer /= field; + + jsoncons::uri new_uri(uri_.scheme(), + uri_.userinfo(), + uri_.host(), + uri_.port(), + uri_.path(), + uri_.query(), + pointer.to_string()); + + schema_location wrapper; + wrapper.uri_ = new_uri; + wrapper.identifier_ = pointer.to_string(); + + return wrapper; + } + + schema_location append(std::size_t index) const + { + if (has_identifier()) + return *this; + + jsoncons::jsonpointer::json_pointer pointer(std::string(uri_.fragment())); + pointer /= index; + + jsoncons::uri new_uri(uri_.scheme(), + uri_.userinfo(), + uri_.host(), + uri_.port(), + uri_.path(), + uri_.query(), + pointer.to_string()); + + schema_location wrapper; + wrapper.uri_ = new_uri; + wrapper.identifier_ = pointer.to_string(); + + return wrapper; + } + + std::string string() const + { + std::string s = uri_.string(); + return s; + } + + friend bool operator==(const schema_location& lhs, const schema_location& rhs) + { + return lhs.compare(rhs) == 0; + } + + friend bool operator!=(const schema_location& lhs, const schema_location& rhs) + { + return lhs.compare(rhs) != 0; + } + + friend bool operator<(const schema_location& lhs, const schema_location& rhs) + { + return lhs.compare(rhs) < 0; + } + + friend bool operator<=(const schema_location& lhs, const schema_location& rhs) + { + return lhs.compare(rhs) <= 0; + } + + friend bool operator>(const schema_location& lhs, const schema_location& rhs) + { + return lhs.compare(rhs) > 0; + } + + friend bool operator>=(const schema_location& lhs, const schema_location& rhs) + { + return lhs.compare(rhs) >= 0; + } + private: + static void unescape_percent(std::string& s) + { + if (s.size() >= 3) + { + std::size_t pos = s.size() - 2; + while (pos-- >= 1) + { + if (s[pos] == '%') + { + std::string hex = s.substr(pos + 1, 2); + char ch = (char) std::strtoul(hex.c_str(), nullptr, 16); + s.replace(pos, 3, 1, ch); + } + } + } + } + }; + +} // namespace jsonschema +} // namespace jsoncons + +#endif // JSONCONS_JSONSCHEMA_RULE_HPP diff --git a/include/jsoncons_ext/jsonschema/schema_version.hpp b/include/jsoncons_ext/jsonschema/schema_version.hpp new file mode 100644 index 0000000..b804712 --- /dev/null +++ b/include/jsoncons_ext/jsonschema/schema_version.hpp @@ -0,0 +1,35 @@ +// Copyright 2021 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSONSCHEMA_SCHEMA_VERSION_HPP +#define JSONCONS_JSONSCHEMA_SCHEMA_VERSION_HPP + +#include + +namespace jsoncons { +namespace jsonschema { + + class schema_version + { + public: + static bool contains(const string_view& url) + { + if (url.find("json-schema.org/draft-07/schema#") != string_view::npos) + { + return true; + } + else + { + return false; + } + } + }; + + +} // namespace jsonschema +} // namespace jsoncons + +#endif // JSONCONS_JSONSCHEMA_JSONSCHEMA_VERSION_HPP diff --git a/include/jsoncons_ext/jsonschema/subschema.hpp b/include/jsoncons_ext/jsonschema/subschema.hpp new file mode 100644 index 0000000..cbe0af4 --- /dev/null +++ b/include/jsoncons_ext/jsonschema/subschema.hpp @@ -0,0 +1,144 @@ +// Copyright 2020 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSONSCHEMA_SUBSCHEMA_HPP +#define JSONCONS_JSONSCHEMA_SUBSCHEMA_HPP + +#include +#include +#include +#include +#include +#include + +namespace jsoncons { +namespace jsonschema { + + // Interface for validation error handlers + class error_reporter + { + bool fail_early_; + std::size_t error_count_; + public: + error_reporter(bool fail_early = false) + : fail_early_(fail_early), error_count_(0) + { + } + + virtual ~error_reporter() = default; + + void error(const validation_output& o) + { + ++error_count_; + do_error(o); + } + + std::size_t error_count() const + { + return error_count_; + } + + bool fail_early() const + { + return fail_early_; + } + + private: + virtual void do_error(const validation_output& /* e */) = 0; + }; + + template + class keyword_validator + { + std::string absolute_keyword_location_; + public: + using self_pointer = keyword_validator*; + + keyword_validator(const std::string& absolute_keyword_location) + : absolute_keyword_location_(absolute_keyword_location) + { + } + + keyword_validator(const keyword_validator&) = delete; + keyword_validator(keyword_validator&&) = default; + keyword_validator& operator=(const keyword_validator&) = delete; + keyword_validator& operator=(keyword_validator&&) = default; + + virtual ~keyword_validator() = default; + + const std::string& absolute_keyword_location() const + { + return absolute_keyword_location_; + } + + void validate(const Json& instance, + const jsonpointer::json_pointer& instance_location, + error_reporter& reporter, + Json& patch) const + { + do_validate(instance, + instance_location, + reporter, + patch); + } + + virtual jsoncons::optional get_default_value(const jsonpointer::json_pointer&, const Json&, error_reporter&) const + { + return jsoncons::optional(); + } + + private: + virtual void do_validate(const Json& instance, + const jsonpointer::json_pointer& instance_location, + error_reporter& reporter, + Json& patch) const = 0; + }; + + template + std::vector update_uris(const Json& schema, + const std::vector& uris, + const std::vector& keys) + { + // Exclude uri's that are not plain name identifiers + std::vector new_uris; + for (const auto& uri : uris) + { + if (!uri.has_identifier()) + new_uris.push_back(uri); + } + + // Append the keys for this sub-schema to the uri's + for (const auto& key : keys) + { + for (auto& uri : new_uris) + { + auto new_u = uri.append(key); + uri = schema_location(new_u); + } + } + if (schema.type() == json_type::object_value) + { + auto it = schema.find("$id"); // If $id is found, this schema can be referenced by the id + if (it != schema.object_range().end()) + { + std::string id = it->value().template as(); + // Add it to the list if it is not already there + if (std::find(new_uris.begin(), new_uris.end(), id) == new_uris.end()) + { + schema_location relative(id); + schema_location new_uri = relative.resolve(new_uris.back()); + new_uris.emplace_back(new_uri); + } + } + } + + return new_uris; + } + +} // namespace jsonschema +} // namespace jsoncons + +#endif // JSONCONS_JSONSCHEMA_RULE_HPP diff --git a/include/jsoncons_ext/mergepatch/mergepatch.hpp b/include/jsoncons_ext/mergepatch/mergepatch.hpp new file mode 100644 index 0000000..c5fdefe --- /dev/null +++ b/include/jsoncons_ext/mergepatch/mergepatch.hpp @@ -0,0 +1,103 @@ +// Copyright 2017 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_JSONMERGEPATCH_JSONMERGEPATCH_HPP +#define JSONCONS_JSONMERGEPATCH_JSONMERGEPATCH_HPP + +#include +#include +#include +#include // std::min +#include // std::move +#include + +namespace jsoncons { +namespace mergepatch { + + template + Json from_diff(const Json& source, const Json& target) + { + if (!source.is_object() || !target.is_object()) + { + return target; + } + Json result(json_object_arg); + + for (const auto& member : source.object_range()) + { + auto it = target.find(member.key()); + if (it != target.object_range().end()) + { + if (member.value() != it->value()) + { + result.try_emplace(member.key(), from_diff(member.value(), it->value())); + } + } + else + { + result.try_emplace(member.key(), Json::null()); + } + } + + for (const auto& member : target.object_range()) + { + auto it = source.find(member.key()); + if (it == source.object_range().end()) + { + result.try_emplace(member.key(), member.value()); + } + } + + return result; + } + + namespace detail { + template + Json apply_merge_patch_(Json& target, const Json& patch) + { + if (patch.is_object()) + { + if (!target.is_object()) + { + target = Json(json_object_arg); + } + for (auto& member : patch.object_range()) + { + auto it = target.find(member.key()); + if (it != target.object_range().end()) + { + Json item = it->value(); + target.erase(it); + if (!member.value().is_null()) + { + target.try_emplace(member.key(), apply_merge_patch_(item, member.value())); + } + } + else if (!member.value().is_null()) + { + Json item(json_object_arg); + target.try_emplace(member.key(), apply_merge_patch_(item, member.value())); + } + } + return target; + } + else + { + return patch; + } + } + } // namespace detail + + template + void apply_merge_patch(Json& target, const Json& patch) + { + target = detail::apply_merge_patch_(target, patch); + } + +} // namespace mergepatch +} // namespace jsoncons + +#endif diff --git a/include/jsoncons_ext/msgpack/decode_msgpack.hpp b/include/jsoncons_ext/msgpack/decode_msgpack.hpp new file mode 100644 index 0000000..614af3d --- /dev/null +++ b/include/jsoncons_ext/msgpack/decode_msgpack.hpp @@ -0,0 +1,202 @@ +// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_MSGPACK_DECODE_MSGPACK_HPP +#define JSONCONS_MSGPACK_DECODE_MSGPACK_HPP + +#include +#include +#include +#include // std::enable_if +#include // std::basic_istream +#include +#include +#include +#include +#include + +namespace jsoncons { +namespace msgpack { + + template + typename std::enable_if::value && + type_traits::is_byte_sequence::value,T>::type + decode_msgpack(const Source& v, + const msgpack_decode_options& options = msgpack_decode_options()) + { + jsoncons::json_decoder decoder; + auto adaptor = make_json_visitor_adaptor(decoder); + basic_msgpack_reader reader(v, adaptor, options); + reader.read(); + if (!decoder.is_valid()) + { + JSONCONS_THROW(ser_error(conv_errc::conversion_failed, reader.line(), reader.column())); + } + return decoder.get_result(); + } + + template + typename std::enable_if::value && + type_traits::is_byte_sequence::value,T>::type + decode_msgpack(const Source& v, + const msgpack_decode_options& options = msgpack_decode_options()) + { + basic_msgpack_cursor cursor(v, options); + json_decoder> decoder{}; + + std::error_code ec; + T val = decode_traits::decode(cursor, decoder, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, cursor.context().line(), cursor.context().column())); + } + return val; + } + + template + typename std::enable_if::value,T>::type + decode_msgpack(std::istream& is, + const msgpack_decode_options& options = msgpack_decode_options()) + { + jsoncons::json_decoder decoder; + auto adaptor = make_json_visitor_adaptor(decoder); + msgpack_stream_reader reader(is, adaptor, options); + reader.read(); + if (!decoder.is_valid()) + { + JSONCONS_THROW(ser_error(conv_errc::conversion_failed, reader.line(), reader.column())); + } + return decoder.get_result(); + } + + template + typename std::enable_if::value,T>::type + decode_msgpack(std::istream& is, + const msgpack_decode_options& options = msgpack_decode_options()) + { + basic_msgpack_cursor cursor(is, options); + json_decoder> decoder{}; + + std::error_code ec; + T val = decode_traits::decode(cursor, decoder, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, cursor.context().line(), cursor.context().column())); + } + return val; + } + + template + typename std::enable_if::value,T>::type + decode_msgpack(InputIt first, InputIt last, + const msgpack_decode_options& options = msgpack_decode_options()) + { + jsoncons::json_decoder decoder; + auto adaptor = make_json_visitor_adaptor(decoder); + basic_msgpack_reader> reader(binary_iterator_source(first, last), adaptor, options); + reader.read(); + if (!decoder.is_valid()) + { + JSONCONS_THROW(ser_error(conv_errc::conversion_failed, reader.line(), reader.column())); + } + return decoder.get_result(); + } + + template + typename std::enable_if::value,T>::type + decode_msgpack(InputIt first, InputIt last, + const msgpack_decode_options& options = msgpack_decode_options()) + { + basic_msgpack_cursor> cursor(binary_iterator_source(first, last), options); + json_decoder> decoder{}; + + std::error_code ec; + T val = decode_traits::decode(cursor, decoder, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, cursor.context().line(), cursor.context().column())); + } + return val; + } + + // With leading allocator parameter + + template + typename std::enable_if::value && + type_traits::is_byte_sequence::value,T>::type + decode_msgpack(temp_allocator_arg_t, const TempAllocator& temp_alloc, + const Source& v, + const msgpack_decode_options& options = msgpack_decode_options()) + { + json_decoder decoder(temp_alloc); + auto adaptor = make_json_visitor_adaptor(decoder); + basic_msgpack_reader reader(v, adaptor, options, temp_alloc); + reader.read(); + if (!decoder.is_valid()) + { + JSONCONS_THROW(ser_error(conv_errc::conversion_failed, reader.line(), reader.column())); + } + return decoder.get_result(); + } + + template + typename std::enable_if::value && + type_traits::is_byte_sequence::value,T>::type + decode_msgpack(temp_allocator_arg_t, const TempAllocator& temp_alloc, + const Source& v, + const msgpack_decode_options& options = msgpack_decode_options()) + { + basic_msgpack_cursor cursor(v, options, temp_alloc); + json_decoder,TempAllocator> decoder(temp_alloc, temp_alloc); + + std::error_code ec; + T val = decode_traits::decode(cursor, decoder, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, cursor.context().line(), cursor.context().column())); + } + return val; + } + + template + typename std::enable_if::value,T>::type + decode_msgpack(temp_allocator_arg_t, const TempAllocator& temp_alloc, + std::istream& is, + const msgpack_decode_options& options = msgpack_decode_options()) + { + json_decoder decoder(temp_alloc); + auto adaptor = make_json_visitor_adaptor(decoder); + basic_msgpack_reader reader(is, adaptor, options, temp_alloc); + reader.read(); + if (!decoder.is_valid()) + { + JSONCONS_THROW(ser_error(conv_errc::conversion_failed, reader.line(), reader.column())); + } + return decoder.get_result(); + } + + template + typename std::enable_if::value,T>::type + decode_msgpack(temp_allocator_arg_t, const TempAllocator& temp_alloc, + std::istream& is, + const msgpack_decode_options& options = msgpack_decode_options()) + { + basic_msgpack_cursor cursor(is, options, temp_alloc); + json_decoder,TempAllocator> decoder(temp_alloc, temp_alloc); + + std::error_code ec; + T val = decode_traits::decode(cursor, decoder, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, cursor.context().line(), cursor.context().column())); + } + return val; + } + +} // msgpack +} // jsoncons + +#endif diff --git a/include/jsoncons_ext/msgpack/encode_msgpack.hpp b/include/jsoncons_ext/msgpack/encode_msgpack.hpp new file mode 100644 index 0000000..10a61e0 --- /dev/null +++ b/include/jsoncons_ext/msgpack/encode_msgpack.hpp @@ -0,0 +1,142 @@ +// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_MSGPACK_ENCODE_MSGPACK_HPP +#define JSONCONS_MSGPACK_ENCODE_MSGPACK_HPP + +#include +#include +#include +#include // std::enable_if +#include // std::basic_istream +#include +#include +#include +#include + +namespace jsoncons { +namespace msgpack { + + template + typename std::enable_if::value && + type_traits::is_back_insertable_byte_container::value,void>::type + encode_msgpack(const T& j, + Container& v, + const msgpack_encode_options& options = msgpack_encode_options()) + { + using char_type = typename T::char_type; + basic_msgpack_encoder> encoder(v, options); + auto adaptor = make_json_visitor_adaptor>(encoder); + j.dump(adaptor); + } + + template + typename std::enable_if::value && + type_traits::is_back_insertable_byte_container::value,void>::type + encode_msgpack(const T& val, + Container& v, + const msgpack_encode_options& options = msgpack_encode_options()) + { + basic_msgpack_encoder> encoder(v, options); + std::error_code ec; + encode_traits::encode(val, encoder, json(), ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec)); + } + } + + template + typename std::enable_if::value,void>::type + encode_msgpack(const T& j, + std::ostream& os, + const msgpack_encode_options& options = msgpack_encode_options()) + { + using char_type = typename T::char_type; + msgpack_stream_encoder encoder(os, options); + auto adaptor = make_json_visitor_adaptor>(encoder); + j.dump(adaptor); + } + + template + typename std::enable_if::value,void>::type + encode_msgpack(const T& val, + std::ostream& os, + const msgpack_encode_options& options = msgpack_encode_options()) + { + msgpack_stream_encoder encoder(os, options); + std::error_code ec; + encode_traits::encode(val, encoder, json(), ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec)); + } + } + + // with temp_allocator_arg_t + + template + typename std::enable_if::value && + type_traits::is_back_insertable_byte_container::value,void>::type + encode_msgpack(temp_allocator_arg_t, const TempAllocator& temp_alloc, const T& j, + Container& v, + const msgpack_encode_options& options = msgpack_encode_options()) + { + using char_type = typename T::char_type; + basic_msgpack_encoder,TempAllocator> encoder(v, options, temp_alloc); + auto adaptor = make_json_visitor_adaptor>(encoder); + j.dump(adaptor); + } + + template + typename std::enable_if::value && + type_traits::is_back_insertable_byte_container::value,void>::type + encode_msgpack(temp_allocator_arg_t, const TempAllocator& temp_alloc, + const T& val, Container& v, + const msgpack_encode_options& options = msgpack_encode_options()) + { + basic_msgpack_encoder,TempAllocator> encoder(v, options, temp_alloc); + std::error_code ec; + encode_traits::encode(val, encoder, json(), ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec)); + } + } + + template + typename std::enable_if::value,void>::type + encode_msgpack(temp_allocator_arg_t, const TempAllocator& temp_alloc, + const T& j, + std::ostream& os, + const msgpack_encode_options& options = msgpack_encode_options()) + { + using char_type = typename T::char_type; + basic_msgpack_encoder encoder(os, options, temp_alloc); + auto adaptor = make_json_visitor_adaptor>(encoder); + j.dump(adaptor); + } + + template + typename std::enable_if::value,void>::type + encode_msgpack(temp_allocator_arg_t, const TempAllocator& temp_alloc, + const T& val, + std::ostream& os, + const msgpack_encode_options& options = msgpack_encode_options()) + { + basic_msgpack_encoder encoder(os, options, temp_alloc); + std::error_code ec; + encode_traits::encode(val, encoder, json(), ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec)); + } + } + +} // msgpack +} // jsoncons + +#endif diff --git a/include/jsoncons_ext/msgpack/msgpack.hpp b/include/jsoncons_ext/msgpack/msgpack.hpp new file mode 100644 index 0000000..307aad2 --- /dev/null +++ b/include/jsoncons_ext/msgpack/msgpack.hpp @@ -0,0 +1,24 @@ +// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_MSGPACK_MSGPACK_HPP +#define JSONCONS_MSGPACK_MSGPACK_HPP + +#include +#include +#include +#include // std::enable_if +#include // std::basic_istream +#include +#include +#include +#include +#include +#include +#include + +#endif + diff --git a/include/jsoncons_ext/msgpack/msgpack_cursor.hpp b/include/jsoncons_ext/msgpack/msgpack_cursor.hpp new file mode 100644 index 0000000..a813429 --- /dev/null +++ b/include/jsoncons_ext/msgpack/msgpack_cursor.hpp @@ -0,0 +1,343 @@ +// Copyright 2018 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_MSGPACK_MSGPACK_CURSOR_HPP +#define JSONCONS_MSGPACK_MSGPACK_CURSOR_HPP + +#include // std::allocator +#include +#include +#include +#include +#include +#include // std::basic_istream +#include +#include +#include +#include +#include +#include +#include + +namespace jsoncons { +namespace msgpack { + +template> +class basic_msgpack_cursor : public basic_staj_cursor, private virtual ser_context +{ +public: + using source_type = Source; + using char_type = char; + using allocator_type = Allocator; +private: + basic_msgpack_parser parser_; + basic_staj_visitor cursor_visitor_; + basic_json_visitor2_to_visitor_adaptor cursor_handler_adaptor_; + bool eof_; + + // Noncopyable and nonmoveable + basic_msgpack_cursor(const basic_msgpack_cursor&) = delete; + basic_msgpack_cursor& operator=(const basic_msgpack_cursor&) = delete; + +public: + using string_view_type = string_view; + + template + basic_msgpack_cursor(Sourceable&& source, + const msgpack_decode_options& options = msgpack_decode_options(), + const Allocator& alloc = Allocator()) + : parser_(std::forward(source), options, alloc), + cursor_visitor_(accept_all), + cursor_handler_adaptor_(cursor_visitor_, alloc), + eof_(false) + { + if (!done()) + { + next(); + } + } + + // Constructors that set parse error codes + + template + basic_msgpack_cursor(Sourceable&& source, + std::error_code& ec) + : basic_msgpack_cursor(std::allocator_arg, Allocator(), + std::forward(source), + msgpack_decode_options(), + ec) + { + } + + template + basic_msgpack_cursor(Sourceable&& source, + const msgpack_decode_options& options, + std::error_code& ec) + : basic_msgpack_cursor(std::allocator_arg, Allocator(), + std::forward(source), + options, + ec) + { + } + + template + basic_msgpack_cursor(std::allocator_arg_t, const Allocator& alloc, + Sourceable&& source, + const msgpack_decode_options& options, + std::error_code& ec) + : parser_(std::forward(source), options, alloc), + cursor_visitor_(accept_all), + cursor_handler_adaptor_(cursor_visitor_, alloc), + eof_(false) + { + if (!done()) + { + next(ec); + } + } + + void reset() + { + parser_.reset(); + cursor_visitor_.reset(); + cursor_handler_adaptor_.reset(); + eof_ = false; + if (!done()) + { + next(); + } + } + + template + void reset(Sourceable&& source) + { + parser_.reset(std::forward(source)); + cursor_visitor_.reset(); + cursor_handler_adaptor_.reset(); + eof_ = false; + if (!done()) + { + next(); + } + } + + void reset(std::error_code& ec) + { + parser_.reset(); + cursor_visitor_.reset(); + cursor_handler_adaptor_.reset(); + eof_ = false; + if (!done()) + { + next(ec); + } + } + + template + void reset(Sourceable&& source, std::error_code& ec) + { + parser_.reset(std::forward(source)); + cursor_visitor_.reset(); + cursor_handler_adaptor_.reset(); + eof_ = false; + if (!done()) + { + next(ec); + } + } + + bool done() const override + { + return parser_.done(); + } + + const staj_event& current() const override + { + return cursor_visitor_.event(); + } + + void read_to(basic_json_visitor& visitor) override + { + std::error_code ec; + read_to(visitor, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec,parser_.line(),parser_.column())); + } + } + + void read_to(basic_json_visitor& visitor, + std::error_code& ec) override + { + if (cursor_visitor_.dump(visitor, *this, ec)) + { + read_next(visitor, ec); + } + } + + void next() override + { + std::error_code ec; + next(ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec,parser_.line(),parser_.column())); + } + } + + void next(std::error_code& ec) override + { + read_next(ec); + } + + const ser_context& context() const override + { + return *this; + } + + bool eof() const + { + return eof_; + } + + std::size_t line() const override + { + return parser_.line(); + } + + std::size_t column() const override + { + return parser_.column(); + } + + friend + staj_filter_view operator|(basic_msgpack_cursor& cursor, + std::function pred) + { + return staj_filter_view(cursor, pred); + } + +#if !defined(JSONCONS_NO_DEPRECATED) + + template + JSONCONS_DEPRECATED_MSG("Instead, use pipe syntax for filter") + basic_msgpack_cursor(Sourceable&& source, + std::function filter, + const msgpack_decode_options& options = msgpack_decode_options(), + const Allocator& alloc = Allocator()) + : parser_(std::forward(source), options, alloc), + cursor_visitor_(filter), + cursor_handler_adaptor_(cursor_visitor_, alloc), + eof_(false) + { + if (!done()) + { + next(); + } + } + + template + JSONCONS_DEPRECATED_MSG("Instead, use pipe syntax for filter") + basic_msgpack_cursor(Sourceable&& source, + std::function filter, + std::error_code& ec) + : basic_msgpack_cursor(std::allocator_arg, Allocator(), + std::forward(source), filter, ec) + { + } + + template + JSONCONS_DEPRECATED_MSG("Instead, use pipe syntax for filter") + basic_msgpack_cursor(std::allocator_arg_t, const Allocator& alloc, + Sourceable&& source, + std::function filter, + std::error_code& ec) + : parser_(std::forward(source), alloc), + cursor_visitor_(filter), + cursor_handler_adaptor_(cursor_visitor_, alloc), + eof_(false) + { + if (!done()) + { + next(ec); + } + } + + JSONCONS_DEPRECATED_MSG("Instead, use read_to(basic_json_visitor&)") + void read(basic_json_visitor& visitor) + { + read_to(visitor); + } + + JSONCONS_DEPRECATED_MSG("Instead, use read_to(basic_json_visitor&, std::error_code&)") + void read(basic_json_visitor& visitor, + std::error_code& ec) + { + read_to(visitor, ec); + } +#endif +private: + static bool accept_all(const staj_event&, const ser_context&) + { + return true; + } + + void read_next(std::error_code& ec) + { + if (cursor_visitor_.in_available()) + { + cursor_visitor_.send_available(ec); + } + else + { + parser_.restart(); + while (!parser_.stopped()) + { + parser_.parse(cursor_handler_adaptor_, ec); + if (ec) return; + } + } + } + + void read_next(basic_json_visitor& visitor, std::error_code& ec) + { + { + struct resource_wrapper + { + basic_json_visitor2_to_visitor_adaptor& adaptor; + basic_json_visitor& original; + + resource_wrapper(basic_json_visitor2_to_visitor_adaptor& adaptor, + basic_json_visitor& visitor) + : adaptor(adaptor), original(adaptor.destination()) + { + adaptor.destination(visitor); + } + + ~resource_wrapper() + { + adaptor.destination(original); + } + } wrapper(cursor_handler_adaptor_, visitor); + + parser_.restart(); + while (!parser_.stopped()) + { + parser_.parse(cursor_handler_adaptor_, ec); + if (ec) return; + } + } + } +}; + +using msgpack_stream_cursor = basic_msgpack_cursor; +using msgpack_bytes_cursor = basic_msgpack_cursor; + +} // namespace msgpack +} // namespace jsoncons + +#endif + diff --git a/include/jsoncons_ext/msgpack/msgpack_cursor2.hpp b/include/jsoncons_ext/msgpack/msgpack_cursor2.hpp new file mode 100644 index 0000000..8fce1ca --- /dev/null +++ b/include/jsoncons_ext/msgpack/msgpack_cursor2.hpp @@ -0,0 +1,259 @@ +// Copyright 2018 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_MSGPACK_MSGPACK_CURSOR2_HPP +#define JSONCONS_MSGPACK_MSGPACK_CURSOR2_HPP + +#include // std::allocator +#include +#include +#include +#include +#include +#include // std::basic_istream +#include +#include +#include +#include +#include +#include +#include + +namespace jsoncons { +namespace msgpack { + + template> + class basic_msgpack_cursor2 : public basic_staj2_cursor, private virtual ser_context + { + public: + using source_type = Source; + using char_type = char; + using allocator_type = Allocator; + private: + basic_msgpack_parser parser_; + basic_staj2_visitor cursor_visitor_; + bool eof_; + + // Noncopyable and nonmoveable + basic_msgpack_cursor2(const basic_msgpack_cursor2&) = delete; + basic_msgpack_cursor2& operator=(const basic_msgpack_cursor2&) = delete; + + public: + using string_view_type = string_view; + + template + basic_msgpack_cursor2(Sourceable&& source, + const msgpack_decode_options& options = msgpack_decode_options(), + const Allocator& alloc = Allocator()) + : parser_(std::forward(source), options, alloc), + cursor_visitor_(accept_all), + eof_(false) + { + if (!done()) + { + next(); + } + } + + // Constructors that set parse error codes + + template + basic_msgpack_cursor2(Sourceable&& source, + std::error_code& ec) + : basic_msgpack_cursor2(std::allocator_arg, Allocator(), + std::forward(source), + msgpack_decode_options(), + ec) + { + } + + template + basic_msgpack_cursor2(Sourceable&& source, + const msgpack_decode_options& options, + std::error_code& ec) + : basic_msgpack_cursor2(std::allocator_arg, Allocator(), + std::forward(source), + options, + ec) + { + } + + template + basic_msgpack_cursor2(std::allocator_arg_t, const Allocator& alloc, + Sourceable&& source, + const msgpack_decode_options& options, + std::error_code& ec) + : parser_(std::forward(source), options, alloc), + cursor_visitor_(accept_all), + eof_(false) + { + if (!done()) + { + next(ec); + } + } + + void reset() + { + parser_.reset(); + cursor_visitor_.reset(); + eof_ = false; + if (!done()) + { + next(); + } + } + + template + void reset(Sourceable&& source) + { + parser_.reset(std::forward(source)); + cursor_visitor_.reset(); + eof_ = false; + if (!done()) + { + next(); + } + } + + void reset(std::error_code& ec) + { + parser_.reset(); + cursor_visitor_.reset(); + eof_ = false; + if (!done()) + { + next(ec); + } + } + + template + void reset(Sourceable&& source, std::error_code& ec) + { + parser_.reset(std::forward(source)); + cursor_visitor_.reset(); + eof_ = false; + if (!done()) + { + next(ec); + } + } + + bool done() const override + { + return parser_.done(); + } + + const staj2_event& current() const override + { + return cursor_visitor_.event(); + } + + void read_to(basic_json_visitor2& visitor) override + { + std::error_code ec; + read_to(visitor, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec,parser_.line(),parser_.column())); + } + } + + void read_to(basic_json_visitor2& visitor, + std::error_code& ec) override + { + if (cursor_visitor_.dump(visitor, *this, ec)) + { + read_next(visitor, ec); + } + } + + void next() override + { + std::error_code ec; + next(ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec,parser_.line(),parser_.column())); + } + } + + void next(std::error_code& ec) override + { + read_next(ec); + } + + const ser_context& context() const override + { + return *this; + } + + bool eof() const + { + return eof_; + } + + std::size_t line() const override + { + return parser_.line(); + } + + std::size_t column() const override + { + return parser_.column(); + } + + friend + staj2_filter_view operator|(basic_msgpack_cursor2& cursor, + std::function pred) + { + return staj2_filter_view(cursor, pred); + } + + private: + static bool accept_all(const staj2_event&, const ser_context&) + { + return true; + } + + void read_next(std::error_code& ec) + { + if (cursor_visitor_.in_available()) + { + cursor_visitor_.send_available(ec); + } + else + { + parser_.restart(); + while (!parser_.stopped()) + { + parser_.parse(cursor_visitor_, ec); + if (ec) return; + } + } + } + + void read_next(basic_json_visitor2& visitor, std::error_code& ec) + { + { + parser_.restart(); + while (!parser_.stopped()) + { + parser_.parse(visitor, ec); + if (ec) return; + } + } + } + }; + + using msgpack_stream_cursor2 = basic_msgpack_cursor2; + using msgpack_bytes_cursor2 = basic_msgpack_cursor2; + +} // namespace msgpack +} // namespace jsoncons + +#endif + diff --git a/include/jsoncons_ext/msgpack/msgpack_encoder.hpp b/include/jsoncons_ext/msgpack/msgpack_encoder.hpp new file mode 100644 index 0000000..34e882b --- /dev/null +++ b/include/jsoncons_ext/msgpack/msgpack_encoder.hpp @@ -0,0 +1,753 @@ +// Copyright 2018 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_MSGPACK_MSGPACK_ENCODER_HPP +#define JSONCONS_MSGPACK_MSGPACK_ENCODER_HPP + +#include +#include +#include // std::numeric_limits +#include +#include // std::move +#include +#include +#include +#include +#include +#include +#include +#include + +namespace jsoncons { +namespace msgpack { + + enum class msgpack_container_type {object, array}; + + template> + class basic_msgpack_encoder final : public basic_json_visitor + { + enum class decimal_parse_state { start, integer, exp1, exp2, fraction1 }; + + static constexpr int64_t nanos_in_milli = 1000000; + static constexpr int64_t nanos_in_second = 1000000000; + static constexpr int64_t millis_in_second = 1000; + public: + using allocator_type = Allocator; + using char_type = char; + using typename basic_json_visitor::string_view_type; + using sink_type = Sink; + + private: + struct stack_item + { + msgpack_container_type type_; + std::size_t length_; + std::size_t count_; + + stack_item(msgpack_container_type type, std::size_t length = 0) noexcept + : type_(type), length_(length), count_(0) + { + } + + std::size_t length() const + { + return length_; + } + + std::size_t count() const + { + return count_; + } + + bool is_object() const + { + return type_ == msgpack_container_type::object; + } + }; + + Sink sink_; + const msgpack_encode_options options_; + allocator_type alloc_; + + std::vector stack_; + int nesting_depth_; + + // Noncopyable and nonmoveable + basic_msgpack_encoder(const basic_msgpack_encoder&) = delete; + basic_msgpack_encoder& operator=(const basic_msgpack_encoder&) = delete; + public: + explicit basic_msgpack_encoder(Sink&& sink, + const Allocator& alloc = Allocator()) + : basic_msgpack_encoder(std::forward(sink), msgpack_encode_options(), alloc) + { + } + + explicit basic_msgpack_encoder(Sink&& sink, + const msgpack_encode_options& options, + const Allocator& alloc = Allocator()) + : sink_(std::forward(sink)), + options_(options), + alloc_(alloc), + nesting_depth_(0) + { + } + + ~basic_msgpack_encoder() noexcept + { + sink_.flush(); + } + + void reset() + { + stack_.clear(); + nesting_depth_ = 0; + } + + void reset(Sink&& sink) + { + sink_ = std::move(sink); + reset(); + } + + private: + // Implementing methods + + void visit_flush() override + { + sink_.flush(); + } + + bool visit_begin_object(semantic_tag, const ser_context&, std::error_code& ec) override + { + ec = msgpack_errc::object_length_required; + return false; + } + + bool visit_begin_object(std::size_t length, semantic_tag, const ser_context&, std::error_code& ec) override + { + if (JSONCONS_UNLIKELY(++nesting_depth_ > options_.max_nesting_depth())) + { + ec = msgpack_errc::max_nesting_depth_exceeded; + return false; + } + stack_.emplace_back(msgpack_container_type::object, length); + + if (length <= 15) + { + // fixmap + sink_.push_back(jsoncons::msgpack::msgpack_type::fixmap_base_type | (length & 0xf)); + } + else if (length <= 65535) + { + // map 16 + sink_.push_back(jsoncons::msgpack::msgpack_type::map16_type); + binary::native_to_big(static_cast(length), + std::back_inserter(sink_)); + } + else if (length <= 4294967295) + { + // map 32 + sink_.push_back(jsoncons::msgpack::msgpack_type::map32_type); + binary::native_to_big(static_cast(length), + std::back_inserter(sink_)); + } + + return true; + } + + bool visit_end_object(const ser_context&, std::error_code& ec) override + { + JSONCONS_ASSERT(!stack_.empty()); + --nesting_depth_; + + if (stack_.back().count() < stack_.back().length()) + { + ec = msgpack_errc::too_few_items; + return false; + } + else if (stack_.back().count() > stack_.back().length()) + { + ec = msgpack_errc::too_many_items; + return false; + } + + stack_.pop_back(); + end_value(); + return true; + } + + bool visit_begin_array(semantic_tag, const ser_context&, std::error_code& ec) override + { + ec = msgpack_errc::array_length_required; + return false; + } + + bool visit_begin_array(std::size_t length, semantic_tag, const ser_context&, std::error_code& ec) override + { + if (JSONCONS_UNLIKELY(++nesting_depth_ > options_.max_nesting_depth())) + { + ec = msgpack_errc::max_nesting_depth_exceeded; + return false; + } + stack_.emplace_back(msgpack_container_type::array, length); + if (length <= 15) + { + // fixarray + sink_.push_back(jsoncons::msgpack::msgpack_type::fixarray_base_type | (length & 0xf)); + } + else if (length <= (std::numeric_limits::max)()) + { + // array 16 + sink_.push_back(jsoncons::msgpack::msgpack_type::array16_type); + binary::native_to_big(static_cast(length),std::back_inserter(sink_)); + } + else if (length <= (std::numeric_limits::max)()) + { + // array 32 + sink_.push_back(jsoncons::msgpack::msgpack_type::array32_type); + binary::native_to_big(static_cast(length),std::back_inserter(sink_)); + } + return true; + } + + bool visit_end_array(const ser_context&, std::error_code& ec) override + { + JSONCONS_ASSERT(!stack_.empty()); + + --nesting_depth_; + + if (stack_.back().count() < stack_.back().length()) + { + ec = msgpack_errc::too_few_items; + return false; + } + else if (stack_.back().count() > stack_.back().length()) + { + ec = msgpack_errc::too_many_items; + return false; + } + + stack_.pop_back(); + end_value(); + return true; + } + + bool visit_key(const string_view_type& name, const ser_context&, std::error_code&) override + { + write_string_value(name); + return true; + } + + bool visit_null(semantic_tag, const ser_context&, std::error_code&) override + { + // nil + sink_.push_back(jsoncons::msgpack::msgpack_type::nil_type); + end_value(); + return true; + } + + void write_timestamp(int64_t seconds, int64_t nanoseconds) + { + if ((seconds >> 34) == 0) + { + uint64_t data64 = (nanoseconds << 34) | seconds; + if ((data64 & 0xffffffff00000000L) == 0) + { + // timestamp 32 + sink_.push_back(jsoncons::msgpack::msgpack_type::fixext4_type); + sink_.push_back(0xff); + binary::native_to_big(static_cast(data64), std::back_inserter(sink_)); + } + else + { + // timestamp 64 + sink_.push_back(jsoncons::msgpack::msgpack_type::fixext8_type); + sink_.push_back(0xff); + binary::native_to_big(static_cast(data64), std::back_inserter(sink_)); + } + } + else + { + // timestamp 96 + sink_.push_back(jsoncons::msgpack::msgpack_type::ext8_type); + sink_.push_back(0x0c); // 12 + sink_.push_back(0xff); + binary::native_to_big(static_cast(nanoseconds), std::back_inserter(sink_)); + binary::native_to_big(static_cast(seconds), std::back_inserter(sink_)); + } + } + + bool visit_string(const string_view_type& sv, semantic_tag tag, const ser_context&, std::error_code& ec) override + { + switch (tag) + { + case semantic_tag::epoch_second: + { + int64_t seconds; + auto result = jsoncons::detail::to_integer(sv.data(), sv.length(), seconds); + if (!result) + { + ec = msgpack_errc::invalid_timestamp; + return false; + } + write_timestamp(seconds, 0); + break; + } + case semantic_tag::epoch_milli: + { + bigint n = bigint::from_string(sv.data(), sv.length()); + if (n != 0) + { + bigint q; + bigint rem; + n.divide(millis_in_second, q, rem, true); + int64_t seconds = static_cast(q); + int64_t nanoseconds = static_cast(rem) * nanos_in_milli; + if (nanoseconds < 0) + { + nanoseconds = -nanoseconds; + } + write_timestamp(seconds, nanoseconds); + } + else + { + write_timestamp(0, 0); + } + break; + } + case semantic_tag::epoch_nano: + { + bigint n = bigint::from_string(sv.data(), sv.length()); + if (n != 0) + { + bigint q; + bigint rem; + n.divide(nanos_in_second, q, rem, true); + int64_t seconds = static_cast(q); + int64_t nanoseconds = static_cast(rem); + if (nanoseconds < 0) + { + nanoseconds = -nanoseconds; + } + write_timestamp(seconds, nanoseconds); + } + else + { + write_timestamp(0, 0); + } + break; + } + default: + { + write_string_value(sv); + end_value(); + break; + } + } + return true; + } + + void write_string_value(const string_view_type& sv) + { + auto sink = unicode_traits::validate(sv.data(), sv.size()); + if (sink.ec != unicode_traits::conv_errc()) + { + JSONCONS_THROW(ser_error(msgpack_errc::invalid_utf8_text_string)); + } + + const size_t length = sv.length(); + if (length <= 31) + { + // fixstr stores a byte array whose length is upto 31 bytes + sink_.push_back(jsoncons::msgpack::msgpack_type::fixstr_base_type | static_cast(length)); + } + else if (length <= (std::numeric_limits::max)()) + { + // str 8 stores a byte array whose length is upto (2^8)-1 bytes + sink_.push_back(jsoncons::msgpack::msgpack_type::str8_type); + sink_.push_back(static_cast(length)); + } + else if (length <= (std::numeric_limits::max)()) + { + // str 16 stores a byte array whose length is upto (2^16)-1 bytes + sink_.push_back(jsoncons::msgpack::msgpack_type::str16_type); + binary::native_to_big(static_cast(length), std::back_inserter(sink_)); + } + else if (length <= (std::numeric_limits::max)()) + { + // str 32 stores a byte array whose length is upto (2^32)-1 bytes + sink_.push_back(jsoncons::msgpack::msgpack_type::str32_type); + binary::native_to_big(static_cast(length),std::back_inserter(sink_)); + } + + for (auto c : sv) + { + sink_.push_back(c); + } + } + + bool visit_byte_string(const byte_string_view& b, + semantic_tag, + const ser_context&, + std::error_code&) override + { + + const std::size_t length = b.size(); + if (length <= (std::numeric_limits::max)()) + { + // bin 8 stores a byte array whose length is upto (2^8)-1 bytes + sink_.push_back(jsoncons::msgpack::msgpack_type::bin8_type); + sink_.push_back(static_cast(length)); + } + else if (length <= (std::numeric_limits::max)()) + { + // bin 16 stores a byte array whose length is upto (2^16)-1 bytes + sink_.push_back(jsoncons::msgpack::msgpack_type::bin16_type); + binary::native_to_big(static_cast(length), std::back_inserter(sink_)); + } + else if (length <= (std::numeric_limits::max)()) + { + // bin 32 stores a byte array whose length is upto (2^32)-1 bytes + sink_.push_back(jsoncons::msgpack::msgpack_type::bin32_type); + binary::native_to_big(static_cast(length),std::back_inserter(sink_)); + } + + for (auto c : b) + { + sink_.push_back(c); + } + + end_value(); + return true; + } + + bool visit_byte_string(const byte_string_view& b, + uint64_t ext_tag, + const ser_context&, + std::error_code&) override + { + const std::size_t length = b.size(); + switch (length) + { + case 1: + sink_.push_back(jsoncons::msgpack::msgpack_type::fixext1_type); + sink_.push_back(static_cast(ext_tag)); + break; + case 2: + sink_.push_back(jsoncons::msgpack::msgpack_type::fixext2_type); + sink_.push_back(static_cast(ext_tag)); + break; + case 4: + sink_.push_back(jsoncons::msgpack::msgpack_type::fixext4_type); + sink_.push_back(static_cast(ext_tag)); + break; + case 8: + sink_.push_back(jsoncons::msgpack::msgpack_type::fixext8_type); + sink_.push_back(static_cast(ext_tag)); + break; + case 16: + sink_.push_back(jsoncons::msgpack::msgpack_type::fixext16_type); + sink_.push_back(static_cast(ext_tag)); + break; + default: + if (length <= (std::numeric_limits::max)()) + { + sink_.push_back(jsoncons::msgpack::msgpack_type::ext8_type); + sink_.push_back(static_cast(length)); + sink_.push_back(static_cast(ext_tag)); + } + else if (length <= (std::numeric_limits::max)()) + { + sink_.push_back(jsoncons::msgpack::msgpack_type::ext16_type); + binary::native_to_big(static_cast(length), std::back_inserter(sink_)); + sink_.push_back(static_cast(ext_tag)); + } + else if (length <= (std::numeric_limits::max)()) + { + sink_.push_back(jsoncons::msgpack::msgpack_type::ext32_type); + binary::native_to_big(static_cast(length),std::back_inserter(sink_)); + sink_.push_back(static_cast(ext_tag)); + } + break; + } + + for (auto c : b) + { + sink_.push_back(c); + } + + end_value(); + return true; + } + + bool visit_double(double val, + semantic_tag, + const ser_context&, + std::error_code&) override + { + float valf = (float)val; + if ((double)valf == val) + { + // float 32 + sink_.push_back(jsoncons::msgpack::msgpack_type::float32_type); + binary::native_to_big(valf,std::back_inserter(sink_)); + } + else + { + // float 64 + sink_.push_back(jsoncons::msgpack::msgpack_type::float64_type); + binary::native_to_big(val,std::back_inserter(sink_)); + } + + // write double + + end_value(); + return true; + } + + bool visit_int64(int64_t val, + semantic_tag tag, + const ser_context&, + std::error_code&) override + { + switch (tag) + { + case semantic_tag::epoch_second: + write_timestamp(val, 0); + break; + case semantic_tag::epoch_milli: + { + if (val != 0) + { + auto dv = std::div(val,millis_in_second); + int64_t seconds = dv.quot; + int64_t nanoseconds = dv.rem*nanos_in_milli; + if (nanoseconds < 0) + { + nanoseconds = -nanoseconds; + } + write_timestamp(seconds, nanoseconds); + } + else + { + write_timestamp(0, 0); + } + break; + } + case semantic_tag::epoch_nano: + { + if (val != 0) + { + auto dv = std::div(val,static_cast(nanos_in_second)); + int64_t seconds = dv.quot; + int64_t nanoseconds = dv.rem; + if (nanoseconds < 0) + { + nanoseconds = -nanoseconds; + } + write_timestamp(seconds, nanoseconds); + } + else + { + write_timestamp(0, 0); + } + break; + } + default: + { + if (val >= 0) + { + if (val <= 0x7f) + { + // positive fixnum stores 7-bit positive integer + sink_.push_back(static_cast(val)); + } + else if (val <= (std::numeric_limits::max)()) + { + // uint 8 stores a 8-bit unsigned integer + sink_.push_back(jsoncons::msgpack::msgpack_type::uint8_type); + sink_.push_back(static_cast(val)); + } + else if (val <= (std::numeric_limits::max)()) + { + // uint 16 stores a 16-bit big-endian unsigned integer + sink_.push_back(jsoncons::msgpack::msgpack_type::uint16_type); + binary::native_to_big(static_cast(val),std::back_inserter(sink_)); + } + else if (val <= (std::numeric_limits::max)()) + { + // uint 32 stores a 32-bit big-endian unsigned integer + sink_.push_back(jsoncons::msgpack::msgpack_type::uint32_type); + binary::native_to_big(static_cast(val),std::back_inserter(sink_)); + } + else if (val <= (std::numeric_limits::max)()) + { + // int 64 stores a 64-bit big-endian signed integer + sink_.push_back(jsoncons::msgpack::msgpack_type::uint64_type); + binary::native_to_big(static_cast(val),std::back_inserter(sink_)); + } + } + else + { + if (val >= -32) + { + // negative fixnum stores 5-bit negative integer + binary::native_to_big(static_cast(val), std::back_inserter(sink_)); + } + else if (val >= (std::numeric_limits::lowest)()) + { + // int 8 stores a 8-bit signed integer + sink_.push_back(jsoncons::msgpack::msgpack_type::int8_type); + binary::native_to_big(static_cast(val),std::back_inserter(sink_)); + } + else if (val >= (std::numeric_limits::lowest)()) + { + // int 16 stores a 16-bit big-endian signed integer + sink_.push_back(jsoncons::msgpack::msgpack_type::int16_type); + binary::native_to_big(static_cast(val),std::back_inserter(sink_)); + } + else if (val >= (std::numeric_limits::lowest)()) + { + // int 32 stores a 32-bit big-endian signed integer + sink_.push_back(jsoncons::msgpack::msgpack_type::int32_type); + binary::native_to_big(static_cast(val),std::back_inserter(sink_)); + } + else if (val >= (std::numeric_limits::lowest)()) + { + // int 64 stores a 64-bit big-endian signed integer + sink_.push_back(jsoncons::msgpack::msgpack_type::int64_type); + binary::native_to_big(static_cast(val),std::back_inserter(sink_)); + } + } + } + break; + } + end_value(); + return true; + } + + bool visit_uint64(uint64_t val, + semantic_tag tag, + const ser_context&, + std::error_code&) override + { + switch (tag) + { + case semantic_tag::epoch_second: + write_timestamp(static_cast(val), 0); + break; + case semantic_tag::epoch_milli: + { + if (val != 0) + { + auto dv = std::div(static_cast(val), static_cast(millis_in_second)); + int64_t seconds = dv.quot; + int64_t nanoseconds = dv.rem*nanos_in_milli; + if (nanoseconds < 0) + { + nanoseconds = -nanoseconds; + } + write_timestamp(seconds, nanoseconds); + } + else + { + write_timestamp(0, 0); + } + break; + } + case semantic_tag::epoch_nano: + { + if (val != 0) + { + auto dv = std::div(static_cast(val), static_cast(nanos_in_second)); + int64_t seconds = dv.quot; + int64_t nanoseconds = dv.rem; + if (nanoseconds < 0) + { + nanoseconds = -nanoseconds; + } + write_timestamp(seconds, nanoseconds); + } + else + { + write_timestamp(0, 0); + } + break; + } + default: + { + if (val <= static_cast((std::numeric_limits::max)())) + { + // positive fixnum stores 7-bit positive integer + sink_.push_back(static_cast(val)); + } + else if (val <= (std::numeric_limits::max)()) + { + // uint 8 stores a 8-bit unsigned integer + sink_.push_back(jsoncons::msgpack::msgpack_type::uint8_type); + sink_.push_back(static_cast(val)); + } + else if (val <= (std::numeric_limits::max)()) + { + // uint 16 stores a 16-bit big-endian unsigned integer + sink_.push_back(jsoncons::msgpack::msgpack_type::uint16_type); + binary::native_to_big(static_cast(val),std::back_inserter(sink_)); + } + else if (val <= (std::numeric_limits::max)()) + { + // uint 32 stores a 32-bit big-endian unsigned integer + sink_.push_back(jsoncons::msgpack::msgpack_type::uint32_type); + binary::native_to_big(static_cast(val),std::back_inserter(sink_)); + } + else if (val <= (std::numeric_limits::max)()) + { + // uint 64 stores a 64-bit big-endian unsigned integer + sink_.push_back(jsoncons::msgpack::msgpack_type::uint64_type); + binary::native_to_big(static_cast(val),std::back_inserter(sink_)); + } + break; + } + } + end_value(); + return true; + } + + bool visit_bool(bool val, semantic_tag, const ser_context&, std::error_code&) override + { + // true and false + sink_.push_back(static_cast(val ? jsoncons::msgpack::msgpack_type::true_type : jsoncons::msgpack::msgpack_type::false_type)); + + end_value(); + return true; + } + + void end_value() + { + if (!stack_.empty()) + { + ++stack_.back().count_; + } + } + }; + + using msgpack_stream_encoder = basic_msgpack_encoder; + using msgpack_bytes_encoder = basic_msgpack_encoder>>; + + #if !defined(JSONCONS_NO_DEPRECATED) + JSONCONS_DEPRECATED_MSG("Instead, use msgpack_bytes_encoder") typedef msgpack_bytes_encoder msgpack_bytes_serializer; + + template + using basic_msgpack_serializer = basic_msgpack_encoder; + + JSONCONS_DEPRECATED_MSG("Instead, use msgpack_stream_encoder") typedef msgpack_stream_encoder msgpack_encoder; + JSONCONS_DEPRECATED_MSG("Instead, use msgpack_stream_encoder") typedef msgpack_stream_encoder msgpack_serializer; + JSONCONS_DEPRECATED_MSG("Instead, use msgpack_bytes_encoder") typedef msgpack_bytes_encoder msgpack_buffer_serializer; + #endif + +} // namespace msgpack +} // namespace jsoncons + +#endif diff --git a/include/jsoncons_ext/msgpack/msgpack_error.hpp b/include/jsoncons_ext/msgpack/msgpack_error.hpp new file mode 100644 index 0000000..80c76b6 --- /dev/null +++ b/include/jsoncons_ext/msgpack/msgpack_error.hpp @@ -0,0 +1,94 @@ +/// Copyright 2018 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_MSGPACK_MSGPACK_ERROR_HPP +#define JSONCONS_MSGPACK_MSGPACK_ERROR_HPP + +#include +#include + +namespace jsoncons { namespace msgpack { + +enum class msgpack_errc +{ + success = 0, + unexpected_eof = 1, + source_error, + invalid_utf8_text_string, + array_length_required, + object_length_required, + too_many_items, + too_few_items, + max_nesting_depth_exceeded, + length_is_negative, + invalid_timestamp, + unknown_type +}; + +class msgpack_error_category_impl + : public std::error_category +{ +public: + const char* name() const noexcept override + { + return "jsoncons/msgpack"; + } + std::string message(int ev) const override + { + switch (static_cast(ev)) + { + case msgpack_errc::unexpected_eof: + return "Unexpected end of file"; + case msgpack_errc::source_error: + return "Source error"; + case msgpack_errc::invalid_utf8_text_string: + return "Illegal UTF-8 encoding in text string"; + case msgpack_errc::array_length_required: + return "MessagePack encoder requires array length"; + case msgpack_errc::object_length_required: + return "MessagePack encoder requires object length"; + case msgpack_errc::too_many_items: + return "Too many items were added to a MessagePack object or array"; + case msgpack_errc::too_few_items: + return "Too few items were added to a MessagePack object or array"; + case msgpack_errc::max_nesting_depth_exceeded: + return "Data item nesting exceeds limit in options"; + case msgpack_errc::length_is_negative: + return "Request for the length of an array, map or string returned a negative result"; + case msgpack_errc::invalid_timestamp: + return "Invalid timestamp"; + case msgpack_errc::unknown_type: + return "An unknown type was found in the stream"; + default: + return "Unknown MessagePack parser error"; + } + } +}; + +inline +const std::error_category& msgpack_error_category() +{ + static msgpack_error_category_impl instance; + return instance; +} + +inline +std::error_code make_error_code(msgpack_errc e) +{ + return std::error_code(static_cast(e),msgpack_error_category()); +} + + +}} + +namespace std { + template<> + struct is_error_code_enum : public true_type + { + }; +} + +#endif diff --git a/include/jsoncons_ext/msgpack/msgpack_options.hpp b/include/jsoncons_ext/msgpack/msgpack_options.hpp new file mode 100644 index 0000000..17bddf1 --- /dev/null +++ b/include/jsoncons_ext/msgpack/msgpack_options.hpp @@ -0,0 +1,74 @@ +// Copyright 2019 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_MSGPACK_MSGPACK_OPTIONS_HPP +#define JSONCONS_MSGPACK_MSGPACK_OPTIONS_HPP + +#include +#include // std::numeric_limits +#include +#include + +namespace jsoncons { namespace msgpack { + +class msgpack_options; + +class msgpack_options_common +{ + friend class msgpack_options; + + int max_nesting_depth_; +protected: + virtual ~msgpack_options_common() = default; + + msgpack_options_common() + : max_nesting_depth_(1024) + { + } + + msgpack_options_common(const msgpack_options_common&) = default; + msgpack_options_common& operator=(const msgpack_options_common&) = default; + msgpack_options_common(msgpack_options_common&&) = default; + msgpack_options_common& operator=(msgpack_options_common&&) = default; +public: + int max_nesting_depth() const + { + return max_nesting_depth_; + } +}; + +class msgpack_decode_options : public virtual msgpack_options_common +{ + friend class msgpack_options; +public: + msgpack_decode_options() + { + } +}; + +class msgpack_encode_options : public virtual msgpack_options_common +{ + friend class msgpack_options; +public: + msgpack_encode_options() + { + } +}; + +class msgpack_options final : public msgpack_decode_options, public msgpack_encode_options +{ +public: + using msgpack_options_common::max_nesting_depth; + + msgpack_options& max_nesting_depth(int value) + { + this->max_nesting_depth_ = value; + return *this; + } +}; + +}} +#endif diff --git a/include/jsoncons_ext/msgpack/msgpack_parser.hpp b/include/jsoncons_ext/msgpack/msgpack_parser.hpp new file mode 100644 index 0000000..cf2d507 --- /dev/null +++ b/include/jsoncons_ext/msgpack/msgpack_parser.hpp @@ -0,0 +1,748 @@ +// Copyright 2017 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_MSGPACK_MSGPACK_PARSER_HPP +#define JSONCONS_MSGPACK_MSGPACK_PARSER_HPP + +#include +#include +#include +#include // std::move +#include +#include +#include +#include +#include +#include +#include +#include +#include + +namespace jsoncons { namespace msgpack { + +enum class parse_mode {root,accept,array,map_key,map_value}; + +struct parse_state +{ + parse_mode mode; + std::size_t length; + std::size_t index; + + parse_state(parse_mode mode, std::size_t length) noexcept + : mode(mode), length(length), index(0) + { + } + + parse_state(const parse_state&) = default; + parse_state(parse_state&&) = default; +}; + +template > +class basic_msgpack_parser : public ser_context +{ + using char_type = char; + using char_traits_type = std::char_traits; + using temp_allocator_type = Allocator; + using char_allocator_type = typename std::allocator_traits:: template rebind_alloc; + using byte_allocator_type = typename std::allocator_traits:: template rebind_alloc; + using int64_allocator_type = typename std::allocator_traits:: template rebind_alloc; + using parse_state_allocator_type = typename std::allocator_traits:: template rebind_alloc; + + static constexpr int64_t nanos_in_second = 1000000000; + + Source source_; + msgpack_decode_options options_; + bool more_; + bool done_; + std::basic_string,char_allocator_type> text_buffer_; + std::vector bytes_buffer_; + std::vector state_stack_; + int nesting_depth_; + +public: + template + basic_msgpack_parser(Sourceable&& source, + const msgpack_decode_options& options = msgpack_decode_options(), + const Allocator alloc = Allocator()) + : source_(std::forward(source)), + options_(options), + more_(true), + done_(false), + text_buffer_(alloc), + bytes_buffer_(alloc), + state_stack_(alloc), + nesting_depth_(0) + { + state_stack_.emplace_back(parse_mode::root,0); + } + + void restart() + { + more_ = true; + } + + void reset() + { + more_ = true; + done_ = false; + text_buffer_.clear(); + bytes_buffer_.clear(); + state_stack_.clear(); + state_stack_.emplace_back(parse_mode::root,0); + nesting_depth_ = 0; + } + + template + void reset(Sourceable&& source) + { + source_ = std::forward(source); + reset(); + } + + bool done() const + { + return done_; + } + + bool stopped() const + { + return !more_; + } + + std::size_t line() const override + { + return 0; + } + + std::size_t column() const override + { + return source_.position(); + } + + void parse(json_visitor2& visitor, std::error_code& ec) + { + while (!done_ && more_) + { + switch (state_stack_.back().mode) + { + case parse_mode::array: + { + if (state_stack_.back().index < state_stack_.back().length) + { + ++state_stack_.back().index; + read_item(visitor, ec); + if (ec) + { + return; + } + } + else + { + end_array(visitor, ec); + } + break; + } + case parse_mode::map_key: + { + if (state_stack_.back().index < state_stack_.back().length) + { + ++state_stack_.back().index; + state_stack_.back().mode = parse_mode::map_value; + read_item(visitor, ec); + if (ec) + { + return; + } + } + else + { + end_object(visitor, ec); + } + break; + } + case parse_mode::map_value: + { + state_stack_.back().mode = parse_mode::map_key; + read_item(visitor, ec); + if (ec) + { + return; + } + break; + } + case parse_mode::root: + { + state_stack_.back().mode = parse_mode::accept; + read_item(visitor, ec); + if (ec) + { + return; + } + break; + } + case parse_mode::accept: + { + JSONCONS_ASSERT(state_stack_.size() == 1); + state_stack_.clear(); + more_ = false; + done_ = true; + visitor.flush(); + break; + } + } + } + } +private: + + void read_item(json_visitor2& visitor, std::error_code& ec) + { + if (source_.is_error()) + { + ec = msgpack_errc::source_error; + more_ = false; + return; + } + + uint8_t type; + if (source_.read(&type, 1) == 0) + { + ec = msgpack_errc::unexpected_eof; + more_ = false; + return; + } + + if (type <= 0xbf) + { + if (type <= 0x7f) + { + // positive fixint + more_ = visitor.uint64_value(type, semantic_tag::none, *this, ec); + } + else if (type <= 0x8f) + { + begin_object(visitor,type,ec); // fixmap + } + else if (type <= 0x9f) + { + begin_array(visitor,type,ec); // fixarray + } + else + { + // fixstr + const size_t len = type & 0x1f; + + text_buffer_.clear(); + + if (source_reader::read(source_,text_buffer_,len) != static_cast(len)) + { + ec = msgpack_errc::unexpected_eof; + more_ = false; + return; + } + + auto result = unicode_traits::validate(text_buffer_.data(),text_buffer_.size()); + if (result.ec != unicode_traits::conv_errc()) + { + ec = msgpack_errc::invalid_utf8_text_string; + more_ = false; + return; + } + more_ = visitor.string_value(jsoncons::basic_string_view(text_buffer_.data(),text_buffer_.length()), semantic_tag::none, *this, ec); + } + } + else if (type >= 0xe0) + { + // negative fixint + more_ = visitor.int64_value(static_cast(type), semantic_tag::none, *this, ec); + } + else + { + switch (type) + { + case jsoncons::msgpack::msgpack_type::nil_type: + { + more_ = visitor.null_value(semantic_tag::none, *this, ec); + break; + } + case jsoncons::msgpack::msgpack_type::true_type: + { + more_ = visitor.bool_value(true, semantic_tag::none, *this, ec); + break; + } + case jsoncons::msgpack::msgpack_type::false_type: + { + more_ = visitor.bool_value(false, semantic_tag::none, *this, ec); + break; + } + case jsoncons::msgpack::msgpack_type::float32_type: + { + uint8_t buf[sizeof(float)]; + if (source_.read(buf, sizeof(float)) != sizeof(float)) + { + ec = msgpack_errc::unexpected_eof; + more_ = false; + return; + } + float val = binary::big_to_native(buf, sizeof(buf)); + more_ = visitor.double_value(val, semantic_tag::none, *this, ec); + break; + } + + case jsoncons::msgpack::msgpack_type::float64_type: + { + uint8_t buf[sizeof(double)]; + if (source_.read(buf, sizeof(double)) != sizeof(double)) + { + ec = msgpack_errc::unexpected_eof; + more_ = false; + return; + } + double val = binary::big_to_native(buf, sizeof(buf)); + more_ = visitor.double_value(val, semantic_tag::none, *this, ec); + break; + } + + case jsoncons::msgpack::msgpack_type::uint8_type: + { + uint8_t b; + if (source_.read(&b, 1) == 0) + { + ec = msgpack_errc::unexpected_eof; + more_ = false; + return; + } + more_ = visitor.uint64_value(b, semantic_tag::none, *this, ec); + break; + } + + case jsoncons::msgpack::msgpack_type::uint16_type: + { + uint8_t buf[sizeof(uint16_t)]; + if (source_.read(buf, sizeof(uint16_t)) !=sizeof(uint16_t)) + { + ec = msgpack_errc::unexpected_eof; + more_ = false; + return; + } + uint16_t val = binary::big_to_native(buf, sizeof(buf)); + more_ = visitor.uint64_value(val, semantic_tag::none, *this, ec); + break; + } + + case jsoncons::msgpack::msgpack_type::uint32_type: + { + uint8_t buf[sizeof(uint32_t)]; + if (source_.read(buf, sizeof(uint32_t)) != sizeof(uint32_t)) + { + ec = msgpack_errc::unexpected_eof; + more_ = false; + return; + } + uint32_t val = binary::big_to_native(buf, sizeof(buf)); + more_ = visitor.uint64_value(val, semantic_tag::none, *this, ec); + break; + } + + case jsoncons::msgpack::msgpack_type::uint64_type: + { + uint8_t buf[sizeof(uint64_t)]; + if (source_.read(buf, sizeof(uint64_t)) != sizeof(uint64_t)) + { + ec = msgpack_errc::unexpected_eof; + more_ = false; + return; + } + uint64_t val = binary::big_to_native(buf, sizeof(buf)); + more_ = visitor.uint64_value(val, semantic_tag::none, *this, ec); + break; + } + + case jsoncons::msgpack::msgpack_type::int8_type: + { + uint8_t buf[sizeof(int8_t)]; + if (source_.read(buf, sizeof(int8_t)) != sizeof(int8_t)) + { + ec = msgpack_errc::unexpected_eof; + more_ = false; + return; + } + int8_t val = binary::big_to_native(buf, sizeof(buf)); + more_ = visitor.int64_value(val, semantic_tag::none, *this, ec); + break; + } + + case jsoncons::msgpack::msgpack_type::int16_type: + { + uint8_t buf[sizeof(int16_t)]; + if (source_.read(buf, sizeof(int16_t)) != sizeof(int16_t)) + { + ec = msgpack_errc::unexpected_eof; + more_ = false; + return; + } + int16_t val = binary::big_to_native(buf, sizeof(buf)); + more_ = visitor.int64_value(val, semantic_tag::none, *this, ec); + break; + } + + case jsoncons::msgpack::msgpack_type::int32_type: + { + uint8_t buf[sizeof(int32_t)]; + if (source_.read(buf, sizeof(int32_t)) != sizeof(int32_t)) + { + ec = msgpack_errc::unexpected_eof; + more_ = false; + return; + } + int32_t val = binary::big_to_native(buf, sizeof(buf)); + more_ = visitor.int64_value(val, semantic_tag::none, *this, ec); + break; + } + + case jsoncons::msgpack::msgpack_type::int64_type: + { + uint8_t buf[sizeof(int64_t)]; + if (source_.read(buf, sizeof(int64_t)) != sizeof(int64_t)) + { + ec = msgpack_errc::unexpected_eof; + more_ = false; + return; + } + int64_t val = binary::big_to_native(buf, sizeof(buf)); + more_ = visitor.int64_value(val, semantic_tag::none, *this, ec); + break; + } + + case jsoncons::msgpack::msgpack_type::str8_type: + case jsoncons::msgpack::msgpack_type::str16_type: + case jsoncons::msgpack::msgpack_type::str32_type: + { + std::size_t len = get_size(type, ec); + if (!more_) + { + return; + } + + text_buffer_.clear(); + if (source_reader::read(source_,text_buffer_,len) != static_cast(len)) + { + ec = msgpack_errc::unexpected_eof; + more_ = false; + return; + } + + auto result = unicode_traits::validate(text_buffer_.data(),text_buffer_.size()); + if (result.ec != unicode_traits::conv_errc()) + { + ec = msgpack_errc::invalid_utf8_text_string; + more_ = false; + return; + } + more_ = visitor.string_value(jsoncons::basic_string_view(text_buffer_.data(),text_buffer_.length()), semantic_tag::none, *this, ec); + break; + } + + case jsoncons::msgpack::msgpack_type::bin8_type: + case jsoncons::msgpack::msgpack_type::bin16_type: + case jsoncons::msgpack::msgpack_type::bin32_type: + { + std::size_t len = get_size(type,ec); + if (!more_) + { + return; + } + bytes_buffer_.clear(); + if (source_reader::read(source_,bytes_buffer_,len) != static_cast(len)) + { + ec = msgpack_errc::unexpected_eof; + more_ = false; + return; + } + + more_ = visitor.byte_string_value(byte_string_view(bytes_buffer_.data(),bytes_buffer_.size()), + semantic_tag::none, + *this, + ec); + break; + } + case jsoncons::msgpack::msgpack_type::fixext1_type: + case jsoncons::msgpack::msgpack_type::fixext2_type: + case jsoncons::msgpack::msgpack_type::fixext4_type: + case jsoncons::msgpack::msgpack_type::fixext8_type: + case jsoncons::msgpack::msgpack_type::fixext16_type: + case jsoncons::msgpack::msgpack_type::ext8_type: + case jsoncons::msgpack::msgpack_type::ext16_type: + case jsoncons::msgpack::msgpack_type::ext32_type: + { + std::size_t len = get_size(type,ec); + if (!more_) + { + return; + } + + // type + uint8_t buf[sizeof(int8_t)]; + if (source_.read(buf, sizeof(int8_t)) != sizeof(int8_t)) + { + ec = msgpack_errc::unexpected_eof; + more_ = false; + return; + } + + int8_t ext_type = binary::big_to_native(buf, sizeof(buf)); + + bool is_timestamp = false; + if (ext_type == -1) + { + is_timestamp = true;; + } + + // payload + if (is_timestamp && len == 4) + { + uint8_t buf32[sizeof(uint32_t)]; + if (source_.read(buf32, sizeof(uint32_t)) != sizeof(uint32_t)) + { + ec = msgpack_errc::unexpected_eof; + more_ = false; + return; + } + uint32_t val = binary::big_to_native(buf32, sizeof(buf32)); + more_ = visitor.uint64_value(val, semantic_tag::epoch_second, *this, ec); + } + else if (is_timestamp && len == 8) + { + uint8_t buf64[sizeof(uint64_t)]; + if (source_.read(buf64, sizeof(uint64_t)) != sizeof(uint64_t)) + { + ec = msgpack_errc::unexpected_eof; + more_ = false; + return; + } + uint64_t data64 = binary::big_to_native(buf64, sizeof(buf64)); + uint64_t sec = data64 & 0x00000003ffffffffL; + uint64_t nsec = data64 >> 34; + + bigint nano(sec); + nano *= uint64_t(nanos_in_second); + nano += nsec; + text_buffer_.clear(); + nano.write_string(text_buffer_); + more_ = visitor.string_value(text_buffer_, semantic_tag::epoch_nano, *this, ec); + if (!more_) return; + } + else if (is_timestamp && len == 12) + { + uint8_t buf1[sizeof(uint32_t)]; + if (source_.read(buf1, sizeof(uint32_t)) != sizeof(uint32_t)) + { + ec = msgpack_errc::unexpected_eof; + more_ = false; + return; + } + uint32_t nsec = binary::big_to_native(buf1, sizeof(buf1)); + + uint8_t buf2[sizeof(int64_t)]; + if (source_.read(buf2, sizeof(int64_t)) != sizeof(int64_t)) + { + ec = msgpack_errc::unexpected_eof; + more_ = false; + return; + } + int64_t sec = binary::big_to_native(buf2, sizeof(buf2)); + + bigint nano(sec); + + nano *= uint64_t(nanos_in_second); + + if (nano < 0) + { + nano -= nsec; + } + else + { + nano += nsec; + } + + text_buffer_.clear(); + nano.write_string(text_buffer_); + more_ = visitor.string_value(text_buffer_, semantic_tag::epoch_nano, *this, ec); + if (!more_) return; + } + else + { + bytes_buffer_.clear(); + if (source_reader::read(source_,bytes_buffer_,len) != static_cast(len)) + { + ec = msgpack_errc::unexpected_eof; + more_ = false; + return; + } + + more_ = visitor.byte_string_value(byte_string_view(bytes_buffer_.data(),bytes_buffer_.size()), + static_cast(ext_type), + *this, + ec); + } + break; + } + + case jsoncons::msgpack::msgpack_type::array16_type: + case jsoncons::msgpack::msgpack_type::array32_type: + { + begin_array(visitor,type,ec); + break; + } + + case jsoncons::msgpack::msgpack_type::map16_type : + case jsoncons::msgpack::msgpack_type::map32_type : + { + begin_object(visitor, type, ec); + break; + } + + default: + { + ec = msgpack_errc::unknown_type; + more_ = false; + return; + } + } + } + } + + void begin_array(json_visitor2& visitor, uint8_t type, std::error_code& ec) + { + if (JSONCONS_UNLIKELY(++nesting_depth_ > options_.max_nesting_depth())) + { + ec = msgpack_errc::max_nesting_depth_exceeded; + more_ = false; + return; + } + std::size_t length = get_size(type, ec); + if (!more_) + { + return; + } + state_stack_.emplace_back(parse_mode::array,length); + more_ = visitor.begin_array(length, semantic_tag::none, *this, ec); + } + + void end_array(json_visitor2& visitor, std::error_code& ec) + { + --nesting_depth_; + + more_ = visitor.end_array(*this, ec); + state_stack_.pop_back(); + } + + void begin_object(json_visitor2& visitor, uint8_t type, std::error_code& ec) + { + if (JSONCONS_UNLIKELY(++nesting_depth_ > options_.max_nesting_depth())) + { + ec = msgpack_errc::max_nesting_depth_exceeded; + more_ = false; + return; + } + std::size_t length = get_size(type, ec); + if (!more_) + { + return; + } + state_stack_.emplace_back(parse_mode::map_key,length); + more_ = visitor.begin_object(length, semantic_tag::none, *this, ec); + } + + void end_object(json_visitor2& visitor, std::error_code& ec) + { + --nesting_depth_; + more_ = visitor.end_object(*this, ec); + state_stack_.pop_back(); + } + + std::size_t get_size(uint8_t type, std::error_code& ec) + { + switch (type) + { + case jsoncons::msgpack::msgpack_type::str8_type: + case jsoncons::msgpack::msgpack_type::bin8_type: + case jsoncons::msgpack::msgpack_type::ext8_type: + { + uint8_t buf[sizeof(int8_t)]; + if (source_.read(buf, sizeof(int8_t)) != sizeof(int8_t)) + { + ec = msgpack_errc::unexpected_eof; + more_ = false; + return 0; + } + uint8_t len = binary::big_to_native(buf, sizeof(buf)); + return static_cast(len); + } + + case jsoncons::msgpack::msgpack_type::str16_type: + case jsoncons::msgpack::msgpack_type::bin16_type: + case jsoncons::msgpack::msgpack_type::ext16_type: + case jsoncons::msgpack::msgpack_type::array16_type: + case jsoncons::msgpack::msgpack_type::map16_type: + { + uint8_t buf[sizeof(int16_t)]; + if (source_.read(buf, sizeof(int16_t)) != sizeof(int16_t)) + { + ec = msgpack_errc::unexpected_eof; + more_ = false; + return 0; + } + uint16_t len = binary::big_to_native(buf, sizeof(buf)); + return static_cast(len); + } + + case jsoncons::msgpack::msgpack_type::str32_type: + case jsoncons::msgpack::msgpack_type::bin32_type: + case jsoncons::msgpack::msgpack_type::ext32_type: + case jsoncons::msgpack::msgpack_type::array32_type: + case jsoncons::msgpack::msgpack_type::map32_type : + { + uint8_t buf[sizeof(int32_t)]; + if (source_.read(buf, sizeof(int32_t)) != sizeof(int32_t)) + { + ec = msgpack_errc::unexpected_eof; + more_ = false; + return 0; + } + uint32_t len = binary::big_to_native(buf, sizeof(buf)); + return static_cast(len); + } + case jsoncons::msgpack::msgpack_type::fixext1_type: + return 1; + case jsoncons::msgpack::msgpack_type::fixext2_type: + return 2; + case jsoncons::msgpack::msgpack_type::fixext4_type: + return 4; + case jsoncons::msgpack::msgpack_type::fixext8_type: + return 8; + case jsoncons::msgpack::msgpack_type::fixext16_type: + return 16; + default: + if ((type > 0x8f && type <= 0x9f) // fixarray + || (type > 0x7f && type <= 0x8f) // fixmap + ) + { + return type & 0x0f; + } + else + { + ec = msgpack_errc::unknown_type; + more_ = false; + return 0; + } + break; + } + } +}; + +}} + +#endif diff --git a/include/jsoncons_ext/msgpack/msgpack_reader.hpp b/include/jsoncons_ext/msgpack/msgpack_reader.hpp new file mode 100644 index 0000000..c0d788a --- /dev/null +++ b/include/jsoncons_ext/msgpack/msgpack_reader.hpp @@ -0,0 +1,116 @@ +// Copyright 2017 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_MSGPACK_MSGPACK_READER_HPP +#define JSONCONS_MSGPACK_MSGPACK_READER_HPP + +#include +#include +#include +#include // std::move +#include +#include +#include +#include +#include +#include +#include + +namespace jsoncons { namespace msgpack { + +template > +class basic_msgpack_reader +{ + using char_type = char; + + basic_msgpack_parser parser_; + basic_json_visitor2_to_visitor_adaptor adaptor_; + json_visitor2& visitor_; +public: + template + basic_msgpack_reader(Sourceable&& source, + json_visitor& visitor, + const Allocator alloc) + : basic_msgpack_reader(std::forward(source), + visitor, + msgpack_decode_options(), + alloc) + { + } + + template + basic_msgpack_reader(Sourceable&& source, + json_visitor& visitor, + const msgpack_decode_options& options = msgpack_decode_options(), + const Allocator alloc=Allocator()) + : parser_(std::forward(source), options, alloc), + adaptor_(visitor, alloc), visitor_(adaptor_) + { + } + template + basic_msgpack_reader(Sourceable&& source, + json_visitor2& visitor, + const Allocator alloc) + : basic_msgpack_reader(std::forward(source), + visitor, + msgpack_decode_options(), + alloc) + { + } + + template + basic_msgpack_reader(Sourceable&& source, + json_visitor2& visitor, + const msgpack_decode_options& options = msgpack_decode_options(), + const Allocator alloc=Allocator()) + : parser_(std::forward(source), options, alloc), + visitor_(visitor) + { + } + + void read() + { + std::error_code ec; + read(ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec,line(),column())); + } + } + + void read(std::error_code& ec) + { + parser_.reset(); + parser_.parse(visitor_, ec); + if (ec) + { + return; + } + } + + std::size_t line() const + { + return parser_.line(); + } + + std::size_t column() const + { + return parser_.column(); + } +}; + +using msgpack_stream_reader = basic_msgpack_reader; + +using msgpack_bytes_reader = basic_msgpack_reader; + +#if !defined(JSONCONS_NO_DEPRECATED) +JSONCONS_DEPRECATED_MSG("Instead, use msgpack_stream_reader") typedef msgpack_stream_reader msgpack_reader; +JSONCONS_DEPRECATED_MSG("Instead, use msgpack_bytes_reader") typedef msgpack_bytes_reader msgpack_buffer_reader; +#endif + +}} + +#endif diff --git a/include/jsoncons_ext/msgpack/msgpack_type.hpp b/include/jsoncons_ext/msgpack/msgpack_type.hpp new file mode 100644 index 0000000..aa9f8fd --- /dev/null +++ b/include/jsoncons_ext/msgpack/msgpack_type.hpp @@ -0,0 +1,63 @@ +// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_MSGPACK_MSGPACK_TYPE_HPP +#define JSONCONS_MSGPACK_MSGPACK_TYPE_HPP + +#include +#include +#include + +namespace jsoncons { namespace msgpack { + + namespace msgpack_type + { + const uint8_t positive_fixint_base_type = 0x00; + const uint8_t nil_type = 0xc0; + const uint8_t false_type = 0xc2; + const uint8_t true_type = 0xc3; + const uint8_t float32_type = 0xca; + const uint8_t float64_type = 0xcb; + const uint8_t uint8_type = 0xcc; + const uint8_t uint16_type = 0xcd; + const uint8_t uint32_type = 0xce; + const uint8_t uint64_type = 0xcf; + const uint8_t int8_type = 0xd0; + const uint8_t int16_type = 0xd1; + const uint8_t int32_type = 0xd2; + const uint8_t int64_type = 0xd3; + + const uint8_t fixmap_base_type = 0x80; + const uint8_t fixarray_base_type = 0x90; + const uint8_t fixstr_base_type = 0xa0; + const uint8_t str8_type = 0xd9; + const uint8_t str16_type = 0xda; + const uint8_t str32_type = 0xdb; + + const uint8_t bin8_type = 0xc4; // 0xC4 + const uint8_t bin16_type = 0xc5; + const uint8_t bin32_type = 0xc6; + + const uint8_t fixext1_type = 0xd4; + const uint8_t fixext2_type = 0xd5; + const uint8_t fixext4_type = 0xd6; + const uint8_t fixext8_type = 0xd7; + const uint8_t fixext16_type = 0xd8; + const uint8_t ext8_type = 0xc7; // 0xC4 + const uint8_t ext16_type = 0xc8; + const uint8_t ext32_type = 0xc9; + + const uint8_t array16_type = 0xdc; + const uint8_t array32_type = 0xdd; + const uint8_t map16_type = 0xde; + const uint8_t map32_type = 0xdf; + const uint8_t negative_fixint_base_type = 0xe0; + } + +} // namespace msgpack +} // namespace jsoncons + +#endif diff --git a/include/jsoncons_ext/ubjson/decode_ubjson.hpp b/include/jsoncons_ext/ubjson/decode_ubjson.hpp new file mode 100644 index 0000000..91c9c0f --- /dev/null +++ b/include/jsoncons_ext/ubjson/decode_ubjson.hpp @@ -0,0 +1,201 @@ +// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_UBJSON_DECODE_UBJSON_HPP +#define JSONCONS_UBJSON_DECODE_UBJSON_HPP + +#include +#include +#include +#include // std::enable_if +#include // std::basic_istream +#include +#include +#include +#include + +namespace jsoncons { +namespace ubjson { + + template + typename std::enable_if::value && + type_traits::is_byte_sequence::value,T>::type + decode_ubjson(const Source& v, + const ubjson_decode_options& options = ubjson_decode_options()) + { + jsoncons::json_decoder decoder; + auto adaptor = make_json_visitor_adaptor(decoder); + basic_ubjson_reader reader(v, adaptor, options); + reader.read(); + if (!decoder.is_valid()) + { + JSONCONS_THROW(ser_error(conv_errc::conversion_failed, reader.line(), reader.column())); + } + return decoder.get_result(); + } + + template + typename std::enable_if::value && + type_traits::is_byte_sequence::value,T>::type + decode_ubjson(const Source& v, + const ubjson_decode_options& options = ubjson_decode_options()) + { + basic_ubjson_cursor cursor(v, options); + json_decoder> decoder{}; + + std::error_code ec; + T val = decode_traits::decode(cursor, decoder, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, cursor.context().line(), cursor.context().column())); + } + return val; + } + + template + typename std::enable_if::value,T>::type + decode_ubjson(std::istream& is, + const ubjson_decode_options& options = ubjson_decode_options()) + { + jsoncons::json_decoder decoder; + auto adaptor = make_json_visitor_adaptor(decoder); + ubjson_stream_reader reader(is, adaptor, options); + reader.read(); + if (!decoder.is_valid()) + { + JSONCONS_THROW(ser_error(conv_errc::conversion_failed, reader.line(), reader.column())); + } + return decoder.get_result(); + } + + template + typename std::enable_if::value,T>::type + decode_ubjson(std::istream& is, + const ubjson_decode_options& options = ubjson_decode_options()) + { + basic_ubjson_cursor cursor(is, options); + json_decoder> decoder{}; + + std::error_code ec; + T val = decode_traits::decode(cursor, decoder, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, cursor.context().line(), cursor.context().column())); + } + return val; + } + + template + typename std::enable_if::value,T>::type + decode_ubjson(InputIt first, InputIt last, + const ubjson_decode_options& options = ubjson_decode_options()) + { + jsoncons::json_decoder decoder; + auto adaptor = make_json_visitor_adaptor(decoder); + basic_ubjson_reader> reader(binary_iterator_source(first, last), adaptor, options); + reader.read(); + if (!decoder.is_valid()) + { + JSONCONS_THROW(ser_error(conv_errc::conversion_failed, reader.line(), reader.column())); + } + return decoder.get_result(); + } + + template + typename std::enable_if::value,T>::type + decode_ubjson(InputIt first, InputIt last, + const ubjson_decode_options& options = ubjson_decode_options()) + { + basic_ubjson_cursor> cursor(binary_iterator_source(first, last), options); + json_decoder> decoder{}; + + std::error_code ec; + T val = decode_traits::decode(cursor, decoder, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, cursor.context().line(), cursor.context().column())); + } + return val; + } + + // With leading allocator parameter + + template + typename std::enable_if::value && + type_traits::is_byte_sequence::value,T>::type + decode_ubjson(temp_allocator_arg_t, const TempAllocator& temp_alloc, + const Source& v, + const ubjson_decode_options& options = ubjson_decode_options()) + { + json_decoder decoder(temp_alloc); + auto adaptor = make_json_visitor_adaptor(decoder); + basic_ubjson_reader reader(v, adaptor, options, temp_alloc); + reader.read(); + if (!decoder.is_valid()) + { + JSONCONS_THROW(ser_error(conv_errc::conversion_failed, reader.line(), reader.column())); + } + return decoder.get_result(); + } + + template + typename std::enable_if::value && + type_traits::is_byte_sequence::value,T>::type + decode_ubjson(temp_allocator_arg_t, const TempAllocator& temp_alloc, + const Source& v, + const ubjson_decode_options& options = ubjson_decode_options()) + { + basic_ubjson_cursor cursor(v, options, temp_alloc); + json_decoder,TempAllocator> decoder(temp_alloc, temp_alloc); + + std::error_code ec; + T val = decode_traits::decode(cursor, decoder, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, cursor.context().line(), cursor.context().column())); + } + return val; + } + + template + typename std::enable_if::value,T>::type + decode_ubjson(temp_allocator_arg_t, const TempAllocator& temp_alloc, + std::istream& is, + const ubjson_decode_options& options = ubjson_decode_options()) + { + json_decoder decoder(temp_alloc); + auto adaptor = make_json_visitor_adaptor(decoder); + basic_ubjson_reader reader(is, adaptor, options, temp_alloc); + reader.read(); + if (!decoder.is_valid()) + { + JSONCONS_THROW(ser_error(conv_errc::conversion_failed, reader.line(), reader.column())); + } + return decoder.get_result(); + } + + template + typename std::enable_if::value,T>::type + decode_ubjson(temp_allocator_arg_t, const TempAllocator& temp_alloc, + std::istream& is, + const ubjson_decode_options& options = ubjson_decode_options()) + { + basic_ubjson_cursor cursor(is, options, temp_alloc); + json_decoder,TempAllocator> decoder(temp_alloc, temp_alloc); + + std::error_code ec; + T val = decode_traits::decode(cursor, decoder, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec, cursor.context().line(), cursor.context().column())); + } + return val; + } + +} // ubjson +} // jsoncons + +#endif diff --git a/include/jsoncons_ext/ubjson/encode_ubjson.hpp b/include/jsoncons_ext/ubjson/encode_ubjson.hpp new file mode 100644 index 0000000..e8a244b --- /dev/null +++ b/include/jsoncons_ext/ubjson/encode_ubjson.hpp @@ -0,0 +1,142 @@ +// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_UBJSON_ENCODE_UBJSON_HPP +#define JSONCONS_UBJSON_ENCODE_UBJSON_HPP + +#include +#include +#include +#include // std::enable_if +#include // std::basic_istream +#include +#include +#include +#include + +namespace jsoncons { +namespace ubjson { + + template + typename std::enable_if::value && + type_traits::is_back_insertable_byte_container::value,void>::type + encode_ubjson(const T& j, + Container& v, + const ubjson_encode_options& options = ubjson_encode_options()) + { + using char_type = typename T::char_type; + basic_ubjson_encoder> encoder(v, options); + auto adaptor = make_json_visitor_adaptor>(encoder); + j.dump(adaptor); + } + + template + typename std::enable_if::value && + type_traits::is_back_insertable_byte_container::value,void>::type + encode_ubjson(const T& val, + Container& v, + const ubjson_encode_options& options = ubjson_encode_options()) + { + basic_ubjson_encoder> encoder(v, options); + std::error_code ec; + encode_traits::encode(val, encoder, json(), ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec)); + } + } + + template + typename std::enable_if::value,void>::type + encode_ubjson(const T& j, + std::ostream& os, + const ubjson_encode_options& options = ubjson_encode_options()) + { + using char_type = typename T::char_type; + ubjson_stream_encoder encoder(os, options); + auto adaptor = make_json_visitor_adaptor>(encoder); + j.dump(adaptor); + } + + template + typename std::enable_if::value,void>::type + encode_ubjson(const T& val, + std::ostream& os, + const ubjson_encode_options& options = ubjson_encode_options()) + { + ubjson_stream_encoder encoder(os, options); + std::error_code ec; + encode_traits::encode(val, encoder, json(), ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec)); + } + } + + // with temp_allocator_arg_t + + template + typename std::enable_if::value && + type_traits::is_back_insertable_byte_container::value,void>::type + encode_ubjson(temp_allocator_arg_t, const TempAllocator& temp_alloc,const T& j, + Container& v, + const ubjson_encode_options& options = ubjson_encode_options()) + { + using char_type = typename T::char_type; + basic_ubjson_encoder,TempAllocator> encoder(v, options, temp_alloc); + auto adaptor = make_json_visitor_adaptor>(encoder); + j.dump(adaptor); + } + + template + typename std::enable_if::value && + type_traits::is_back_insertable_byte_container::value,void>::type + encode_ubjson(temp_allocator_arg_t, const TempAllocator& temp_alloc,const T& val, + Container& v, + const ubjson_encode_options& options = ubjson_encode_options()) + { + basic_ubjson_encoder,TempAllocator> encoder(v, options, temp_alloc); + std::error_code ec; + encode_traits::encode(val, encoder, json(), ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec)); + } + } + + template + typename std::enable_if::value,void>::type + encode_ubjson(temp_allocator_arg_t, const TempAllocator& temp_alloc, + const T& j, + std::ostream& os, + const ubjson_encode_options& options = ubjson_encode_options()) + { + using char_type = typename T::char_type; + basic_ubjson_encoder encoder(os, options, temp_alloc); + auto adaptor = make_json_visitor_adaptor>(encoder); + j.dump(adaptor); + } + + template + typename std::enable_if::value,void>::type + encode_ubjson(temp_allocator_arg_t, const TempAllocator& temp_alloc, + const T& val, + std::ostream& os, + const ubjson_encode_options& options = ubjson_encode_options()) + { + basic_ubjson_encoder encoder(os, options, temp_alloc); + std::error_code ec; + encode_traits::encode(val, encoder, json(), ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec)); + } + } + +} // ubjson +} // jsoncons + +#endif diff --git a/include/jsoncons_ext/ubjson/ubjson.hpp b/include/jsoncons_ext/ubjson/ubjson.hpp new file mode 100644 index 0000000..c2729bd --- /dev/null +++ b/include/jsoncons_ext/ubjson/ubjson.hpp @@ -0,0 +1,23 @@ +// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_UBJSON_UBJSON_HPP +#define JSONCONS_UBJSON_UBJSON_HPP + +#include +#include +#include +#include // std::enable_if +#include // std::basic_istream +#include +#include +#include +#include +#include +#include +#include + +#endif diff --git a/include/jsoncons_ext/ubjson/ubjson_cursor.hpp b/include/jsoncons_ext/ubjson/ubjson_cursor.hpp new file mode 100644 index 0000000..f60825e --- /dev/null +++ b/include/jsoncons_ext/ubjson/ubjson_cursor.hpp @@ -0,0 +1,307 @@ +// Copyright 2018 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_UBJSON_UBJSON_CURSOR_HPP +#define JSONCONS_UBJSON_UBJSON_CURSOR_HPP + +#include // std::allocator +#include +#include +#include +#include +#include +#include // std::basic_istream +#include +#include +#include +#include +#include +#include +#include + +namespace jsoncons { +namespace ubjson { + +template> +class basic_ubjson_cursor : public basic_staj_cursor, private virtual ser_context +{ +public: + using source_type = Source; + using char_type = char; + using allocator_type = Allocator; +private: + basic_ubjson_parser parser_; + basic_staj_visitor cursor_visitor_; + bool eof_; + + // Noncopyable and nonmoveable + basic_ubjson_cursor(const basic_ubjson_cursor&) = delete; + basic_ubjson_cursor& operator=(const basic_ubjson_cursor&) = delete; + +public: + using string_view_type = string_view; + + template + basic_ubjson_cursor(Sourceable&& source, + const ubjson_decode_options& options = ubjson_decode_options(), + const Allocator& alloc = Allocator()) + : parser_(std::forward(source), options, alloc), + cursor_visitor_(accept_all), + eof_(false) + { + if (!done()) + { + next(); + } + } + + // Constructors that set parse error codes + + template + basic_ubjson_cursor(Sourceable&& source, + std::error_code& ec) + : basic_ubjson_cursor(std::allocator_arg, Allocator(), + std::forward(source), + ubjson_decode_options(), + ec) + { + } + + template + basic_ubjson_cursor(Sourceable&& source, + const ubjson_decode_options& options, + std::error_code& ec) + : basic_ubjson_cursor(std::allocator_arg, Allocator(), + std::forward(source), + options, + ec) + { + } + + template + basic_ubjson_cursor(std::allocator_arg_t, const Allocator& alloc, + Sourceable&& source, + const ubjson_decode_options& options, + std::error_code& ec) + : parser_(std::forward(source), options, alloc), + cursor_visitor_(accept_all), + eof_(false) + { + if (!done()) + { + next(ec); + } + } + + void reset() + { + parser_.reset(); + cursor_visitor_.reset(); + eof_ = false; + if (!done()) + { + next(); + } + } + + template + void reset(Sourceable&& source) + { + parser_.reset(std::forward(source)); + cursor_visitor_.reset(); + eof_ = false; + if (!done()) + { + next(); + } + } + + void reset(std::error_code& ec) + { + parser_.reset(); + cursor_visitor_.reset(); + eof_ = false; + if (!done()) + { + next(ec); + } + } + + template + void reset(Sourceable&& source, std::error_code& ec) + { + parser_.reset(std::forward(source)); + cursor_visitor_.reset(); + eof_ = false; + if (!done()) + { + next(ec); + } + } + + bool done() const override + { + return parser_.done(); + } + + const staj_event& current() const override + { + return cursor_visitor_.event(); + } + + void read_to(basic_json_visitor& visitor) override + { + std::error_code ec; + read_to(visitor, ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec,parser_.line(),parser_.column())); + } + } + + void read_to(basic_json_visitor& visitor, + std::error_code& ec) override + { + if (staj_to_saj_event(cursor_visitor_.event(), visitor, *this, ec)) + { + read_next(visitor, ec); + } + } + + void next() override + { + std::error_code ec; + next(ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec,parser_.line(),parser_.column())); + } + } + + void next(std::error_code& ec) override + { + read_next(ec); + } + + const ser_context& context() const override + { + return *this; + } + + bool eof() const + { + return eof_; + } + + std::size_t line() const override + { + return parser_.line(); + } + + std::size_t column() const override + { + return parser_.column(); + } + + friend + staj_filter_view operator|(basic_ubjson_cursor& cursor, + std::function pred) + { + return staj_filter_view(cursor, pred); + } + +#if !defined(JSONCONS_NO_DEPRECATED) + + template + JSONCONS_DEPRECATED_MSG("Instead, use pipe syntax for filter") + basic_ubjson_cursor(Sourceable&& source, + std::function filter, + const ubjson_decode_options& options = ubjson_decode_options(), + const Allocator& alloc = Allocator()) + : parser_(std::forward(source), options, alloc), + cursor_visitor_(filter), + eof_(false) + { + if (!done()) + { + next(); + } + } + + template + JSONCONS_DEPRECATED_MSG("Instead, use pipe syntax for filter") + basic_ubjson_cursor(Sourceable&& source, + std::function filter, + std::error_code& ec) + : basic_ubjson_cursor(std::allocator_arg, Allocator(), + std::forward(source), filter, ec) + { + } + + template + JSONCONS_DEPRECATED_MSG("Instead, use pipe syntax for filter") + basic_ubjson_cursor(std::allocator_arg_t, const Allocator& alloc, + Sourceable&& source, + std::function filter, + std::error_code& ec) + : parser_(std::forward(source), alloc), + cursor_visitor_(filter), + eof_(false) + { + if (!done()) + { + next(ec); + } + } + + JSONCONS_DEPRECATED_MSG("Instead, use read_to(basic_json_visitor&)") + void read(basic_json_visitor& visitor) + { + read_to(visitor); + } + + JSONCONS_DEPRECATED_MSG("Instead, use read_to(basic_json_visitor&, std::error_code&)") + void read(basic_json_visitor& visitor, + std::error_code& ec) + { + read_to(visitor, ec); + } +#endif +private: + static bool accept_all(const staj_event&, const ser_context&) + { + return true; + } + + void read_next(std::error_code& ec) + { + parser_.restart(); + while (!parser_.stopped()) + { + parser_.parse(cursor_visitor_, ec); + if (ec) return; + } + } + + void read_next(basic_json_visitor& visitor, std::error_code& ec) + { + parser_.restart(); + while (!parser_.stopped()) + { + parser_.parse(visitor, ec); + if (ec) return; + } + } +}; + +using ubjson_stream_cursor = basic_ubjson_cursor; +using ubjson_bytes_cursor = basic_ubjson_cursor; + +} // namespace ubjson +} // namespace jsoncons + +#endif + diff --git a/include/jsoncons_ext/ubjson/ubjson_encoder.hpp b/include/jsoncons_ext/ubjson/ubjson_encoder.hpp new file mode 100644 index 0000000..2d90e4a --- /dev/null +++ b/include/jsoncons_ext/ubjson/ubjson_encoder.hpp @@ -0,0 +1,502 @@ +// Copyright 2018 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_UBJSON_UBJSON_ENCODER_HPP +#define JSONCONS_UBJSON_UBJSON_ENCODER_HPP + +#include +#include +#include // std::numeric_limits +#include +#include // std::move +#include +#include +#include +#include +#include +#include +#include +#include + +namespace jsoncons { namespace ubjson { + +enum class ubjson_container_type {object, indefinite_length_object, array, indefinite_length_array}; + +template> +class basic_ubjson_encoder final : public basic_json_visitor +{ + + enum class decimal_parse_state { start, integer, exp1, exp2, fraction1 }; +public: + using allocator_type = Allocator; + using typename basic_json_visitor::string_view_type; + using sink_type = Sink; + +private: + struct stack_item + { + ubjson_container_type type_; + std::size_t length_; + std::size_t count_; + + stack_item(ubjson_container_type type, std::size_t length = 0) noexcept + : type_(type), length_(length), count_(0) + { + } + + std::size_t length() const + { + return length_; + } + + std::size_t count() const + { + return count_; + } + + bool is_object() const + { + return type_ == ubjson_container_type::object || type_ == ubjson_container_type::indefinite_length_object; + } + + bool is_indefinite_length() const + { + return type_ == ubjson_container_type::indefinite_length_array || type_ == ubjson_container_type::indefinite_length_object; + } + + }; + + Sink sink_; + const ubjson_encode_options options_; + allocator_type alloc_; + + std::vector stack_; + int nesting_depth_; + + // Noncopyable and nonmoveable + basic_ubjson_encoder(const basic_ubjson_encoder&) = delete; + basic_ubjson_encoder& operator=(const basic_ubjson_encoder&) = delete; +public: + basic_ubjson_encoder(Sink&& sink, + const Allocator& alloc = Allocator()) + : basic_ubjson_encoder(std::forward(sink), ubjson_encode_options(), alloc) + { + } + + explicit basic_ubjson_encoder(Sink&& sink, + const ubjson_encode_options& options, + const Allocator& alloc = Allocator()) + : sink_(std::forward(sink)), + options_(options), + alloc_(alloc), + nesting_depth_(0) + { + } + + void reset() + { + stack_.clear(); + nesting_depth_ = 0; + } + + void reset(Sink&& sink) + { + sink_ = std::move(sink); + reset(); + } + + ~basic_ubjson_encoder() noexcept + { + JSONCONS_TRY + { + sink_.flush(); + } + JSONCONS_CATCH(...) + { + } + } + +private: + // Implementing methods + + void visit_flush() override + { + sink_.flush(); + } + + bool visit_begin_object(semantic_tag, const ser_context&, std::error_code& ec) override + { + if (JSONCONS_UNLIKELY(++nesting_depth_ > options_.max_nesting_depth())) + { + ec = ubjson_errc::max_nesting_depth_exceeded; + return false; + } + stack_.emplace_back(ubjson_container_type::indefinite_length_object); + sink_.push_back(jsoncons::ubjson::ubjson_type::start_object_marker); + + return true; + } + + bool visit_begin_object(std::size_t length, semantic_tag, const ser_context&, std::error_code& ec) override + { + if (JSONCONS_UNLIKELY(++nesting_depth_ > options_.max_nesting_depth())) + { + ec = ubjson_errc::max_nesting_depth_exceeded; + return false; + } + stack_.emplace_back(ubjson_container_type::object, length); + sink_.push_back(jsoncons::ubjson::ubjson_type::start_object_marker); + sink_.push_back(jsoncons::ubjson::ubjson_type::count_marker); + put_length(length); + + return true; + } + + bool visit_end_object(const ser_context&, std::error_code& ec) override + { + JSONCONS_ASSERT(!stack_.empty()); + --nesting_depth_; + + if (stack_.back().is_indefinite_length()) + { + sink_.push_back(jsoncons::ubjson::ubjson_type::end_object_marker); + } + else + { + if (stack_.back().count() < stack_.back().length()) + { + ec = ubjson_errc::too_few_items; + return false; + } + if (stack_.back().count() > stack_.back().length()) + { + ec = ubjson_errc::too_many_items; + return false; + } + } + stack_.pop_back(); + end_value(); + return true; + } + + bool visit_begin_array(semantic_tag, const ser_context&, std::error_code& ec) override + { + if (JSONCONS_UNLIKELY(++nesting_depth_ > options_.max_nesting_depth())) + { + ec = ubjson_errc::max_nesting_depth_exceeded; + return false; + } + stack_.emplace_back(ubjson_container_type::indefinite_length_array); + sink_.push_back(jsoncons::ubjson::ubjson_type::start_array_marker); + + return true; + } + + bool visit_begin_array(std::size_t length, semantic_tag, const ser_context&, std::error_code& ec) override + { + if (JSONCONS_UNLIKELY(++nesting_depth_ > options_.max_nesting_depth())) + { + ec = ubjson_errc::max_nesting_depth_exceeded; + return false; + } + stack_.emplace_back(ubjson_container_type::array, length); + sink_.push_back(jsoncons::ubjson::ubjson_type::start_array_marker); + sink_.push_back(jsoncons::ubjson::ubjson_type::count_marker); + put_length(length); + + return true; + } + + bool visit_end_array(const ser_context&, std::error_code& ec) override + { + JSONCONS_ASSERT(!stack_.empty()); + --nesting_depth_; + + if (stack_.back().is_indefinite_length()) + { + sink_.push_back(jsoncons::ubjson::ubjson_type::end_array_marker); + } + else + { + if (stack_.back().count() < stack_.back().length()) + { + ec = ubjson_errc::too_few_items; + return false; + } + if (stack_.back().count() > stack_.back().length()) + { + ec = ubjson_errc::too_many_items; + return false; + } + } + stack_.pop_back(); + end_value(); + return true; + } + + bool visit_key(const string_view_type& name, const ser_context&, std::error_code& ec) override + { + auto sink = unicode_traits::validate(name.data(), name.size()); + if (sink.ec != unicode_traits::conv_errc()) + { + ec = ubjson_errc::invalid_utf8_text_string; + return false; + } + + put_length(name.length()); + + for (auto c : name) + { + sink_.push_back(c); + } + return true; + } + + bool visit_null(semantic_tag, const ser_context&, std::error_code&) override + { + // nil + binary::native_to_big(static_cast(jsoncons::ubjson::ubjson_type::null_type), std::back_inserter(sink_)); + end_value(); + return true; + } + + bool visit_string(const string_view_type& sv, semantic_tag tag, const ser_context&, std::error_code& ec) override + { + switch (tag) + { + case semantic_tag::bigint: + case semantic_tag::bigdec: + { + sink_.push_back(jsoncons::ubjson::ubjson_type::high_precision_number_type); + break; + } + default: + { + sink_.push_back(jsoncons::ubjson::ubjson_type::string_type); + break; + } + } + + auto sink = unicode_traits::validate(sv.data(), sv.size()); + if (sink.ec != unicode_traits::conv_errc()) + { + ec = ubjson_errc::invalid_utf8_text_string; + return false; + } + + put_length(sv.length()); + + for (auto c : sv) + { + sink_.push_back(c); + } + + end_value(); + return true; + } + + void put_length(std::size_t length) + { + if (length <= (std::numeric_limits::max)()) + { + sink_.push_back(ubjson_type::uint8_type); + binary::native_to_big(static_cast(length), std::back_inserter(sink_)); + } + else if (length <= (std::size_t)(std::numeric_limits::max)()) + { + sink_.push_back(ubjson_type::int16_type); + binary::native_to_big(static_cast(length), std::back_inserter(sink_)); + } + else if (length <= (std::size_t)(std::numeric_limits::max)()) + { + sink_.push_back(ubjson_type::int32_type); + binary::native_to_big(static_cast(length),std::back_inserter(sink_)); + } + else if (length <= (std::size_t)(std::numeric_limits::max)()) + { + sink_.push_back(ubjson_type::int64_type); + binary::native_to_big(static_cast(length),std::back_inserter(sink_)); + } + else + { + JSONCONS_THROW(ser_error(ubjson_errc::too_many_items)); + } + } + + bool visit_byte_string(const byte_string_view& b, + semantic_tag, + const ser_context&, + std::error_code&) override + { + + const size_t length = b.size(); + sink_.push_back(jsoncons::ubjson::ubjson_type::start_array_marker); + binary::native_to_big(static_cast(jsoncons::ubjson::ubjson_type::type_marker), std::back_inserter(sink_)); + binary::native_to_big(static_cast(jsoncons::ubjson::ubjson_type::uint8_type), std::back_inserter(sink_)); + put_length(length); + + for (auto c : b) + { + sink_.push_back(c); + } + + end_value(); + return true; + } + + bool visit_double(double val, + semantic_tag, + const ser_context&, + std::error_code&) override + { + float valf = (float)val; + if ((double)valf == val) + { + // float 32 + sink_.push_back(static_cast(jsoncons::ubjson::ubjson_type::float32_type)); + binary::native_to_big(valf,std::back_inserter(sink_)); + } + else + { + // float 64 + sink_.push_back(static_cast(jsoncons::ubjson::ubjson_type::float64_type)); + binary::native_to_big(val,std::back_inserter(sink_)); + } + + // write double + + end_value(); + return true; + } + + bool visit_int64(int64_t val, + semantic_tag, + const ser_context&, + std::error_code&) override + { + if (val >= 0) + { + if (val <= (std::numeric_limits::max)()) + { + // uint 8 stores a 8-bit unsigned integer + sink_.push_back(jsoncons::ubjson::ubjson_type::uint8_type); + binary::native_to_big(static_cast(val),std::back_inserter(sink_)); + } + else if (val <= (std::numeric_limits::max)()) + { + // uint 16 stores a 16-bit big-endian unsigned integer + sink_.push_back(jsoncons::ubjson::ubjson_type::int16_type); + binary::native_to_big(static_cast(val),std::back_inserter(sink_)); + } + else if (val <= (std::numeric_limits::max)()) + { + // uint 32 stores a 32-bit big-endian unsigned integer + sink_.push_back(jsoncons::ubjson::ubjson_type::int32_type); + binary::native_to_big(static_cast(val),std::back_inserter(sink_)); + } + else if (val <= (std::numeric_limits::max)()) + { + // int 64 stores a 64-bit big-endian signed integer + sink_.push_back(jsoncons::ubjson::ubjson_type::int64_type); + binary::native_to_big(static_cast(val),std::back_inserter(sink_)); + } + else + { + // big integer + } + } + else + { + if (val >= (std::numeric_limits::lowest)()) + { + // int 8 stores a 8-bit signed integer + sink_.push_back(jsoncons::ubjson::ubjson_type::int8_type); + binary::native_to_big(static_cast(val),std::back_inserter(sink_)); + } + else if (val >= (std::numeric_limits::lowest)()) + { + // int 16 stores a 16-bit big-endian signed integer + sink_.push_back(jsoncons::ubjson::ubjson_type::int16_type); + binary::native_to_big(static_cast(val),std::back_inserter(sink_)); + } + else if (val >= (std::numeric_limits::lowest)()) + { + // int 32 stores a 32-bit big-endian signed integer + sink_.push_back(jsoncons::ubjson::ubjson_type::int32_type); + binary::native_to_big(static_cast(val),std::back_inserter(sink_)); + } + else if (val >= (std::numeric_limits::lowest)()) + { + // int 64 stores a 64-bit big-endian signed integer + sink_.push_back(jsoncons::ubjson::ubjson_type::int64_type); + binary::native_to_big(static_cast(val),std::back_inserter(sink_)); + } + } + end_value(); + return true; + } + + bool visit_uint64(uint64_t val, + semantic_tag, + const ser_context&, + std::error_code&) override + { + if (val <= (std::numeric_limits::max)()) + { + sink_.push_back(jsoncons::ubjson::ubjson_type::uint8_type); + binary::native_to_big(static_cast(val),std::back_inserter(sink_)); + } + else if (val <= static_cast((std::numeric_limits::max)())) + { + sink_.push_back(jsoncons::ubjson::ubjson_type::int16_type); + binary::native_to_big(static_cast(val),std::back_inserter(sink_)); + } + else if (val <= static_cast((std::numeric_limits::max)())) + { + sink_.push_back(jsoncons::ubjson::ubjson_type::int32_type); + binary::native_to_big(static_cast(val),std::back_inserter(sink_)); + } + else if (val <= static_cast((std::numeric_limits::max)())) + { + sink_.push_back(jsoncons::ubjson::ubjson_type::int64_type); + binary::native_to_big(static_cast(val),std::back_inserter(sink_)); + } + end_value(); + return true; + } + + bool visit_bool(bool val, semantic_tag, const ser_context&, std::error_code&) override + { + // true and false + sink_.push_back(static_cast(val ? jsoncons::ubjson::ubjson_type::true_type : jsoncons::ubjson::ubjson_type::false_type)); + + end_value(); + return true; + } + + void end_value() + { + if (!stack_.empty()) + { + ++stack_.back().count_; + } + } +}; + +using ubjson_stream_encoder = basic_ubjson_encoder; +using ubjson_bytes_encoder = basic_ubjson_encoder>>; + +#if !defined(JSONCONS_NO_DEPRECATED) +template +using basic_ubjson_serializer = basic_ubjson_encoder; + +JSONCONS_DEPRECATED_MSG("Instead, use ubjson_stream_encoder") typedef ubjson_stream_encoder ubjson_encoder; +JSONCONS_DEPRECATED_MSG("Instead, use ubjson_stream_encoder") typedef ubjson_stream_encoder ubjson_serializer; +JSONCONS_DEPRECATED_MSG("Instead, use ubjson_bytes_encoder") typedef ubjson_bytes_encoder ubjson_buffer_serializer; +#endif + +}} +#endif diff --git a/include/jsoncons_ext/ubjson/ubjson_error.hpp b/include/jsoncons_ext/ubjson/ubjson_error.hpp new file mode 100644 index 0000000..cc7f5b8 --- /dev/null +++ b/include/jsoncons_ext/ubjson/ubjson_error.hpp @@ -0,0 +1,100 @@ +/// Copyright 2018 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_UBJSON_UBJSON_ERROR_HPP +#define JSONCONS_UBJSON_UBJSON_ERROR_HPP + +#include +#include + +namespace jsoncons { namespace ubjson { + +enum class ubjson_errc +{ + success = 0, + unexpected_eof = 1, + source_error, + count_required_after_type, + length_is_negative, + length_must_be_integer, + unknown_type, + invalid_utf8_text_string, + too_many_items, + too_few_items, + number_too_large, + max_nesting_depth_exceeded, + key_expected, + max_items_exceeded +}; + +class ubjson_error_category_impl + : public std::error_category +{ +public: + const char* name() const noexcept override + { + return "jsoncons/ubjson"; + } + std::string message(int ev) const override + { + switch (static_cast(ev)) + { + case ubjson_errc::unexpected_eof: + return "Unexpected end of file"; + case ubjson_errc::source_error: + return "Source error"; + case ubjson_errc::count_required_after_type: + return "Type is specified for container, but count is not specified"; + case ubjson_errc::length_is_negative: + return "Request for the length of an array, map or string returned a negative result"; + case ubjson_errc::length_must_be_integer: + return "Length must be a integer numeric type (int8, uint8, int16, int32, int64)"; + case ubjson_errc::unknown_type: + return "Unknown type"; + case ubjson_errc::invalid_utf8_text_string: + return "Illegal UTF-8 encoding in text string"; + case ubjson_errc::too_many_items: + return "Too many items were added to a UBJSON object or array of known length"; + case ubjson_errc::too_few_items: + return "Too few items were added to a UBJSON object or array of known length"; + case ubjson_errc::number_too_large: + return "Number exceeds implementation limits"; + case ubjson_errc::max_nesting_depth_exceeded: + return "Data item nesting exceeds limit in options"; + case ubjson_errc::key_expected: + return "Text string key in a map expected"; + case ubjson_errc::max_items_exceeded: + return "Number of items in UBJSON object or array exceeds limit set in options"; + default: + return "Unknown UBJSON parser error"; + } + } +}; + +inline +const std::error_category& ubjson_error_category() +{ + static ubjson_error_category_impl instance; + return instance; +} + +inline +std::error_code make_error_code(ubjson_errc e) +{ + return std::error_code(static_cast(e),ubjson_error_category()); +} + + +}} + +namespace std { + template<> + struct is_error_code_enum : public true_type + { + }; +} + +#endif diff --git a/include/jsoncons_ext/ubjson/ubjson_options.hpp b/include/jsoncons_ext/ubjson/ubjson_options.hpp new file mode 100644 index 0000000..1498d50 --- /dev/null +++ b/include/jsoncons_ext/ubjson/ubjson_options.hpp @@ -0,0 +1,87 @@ +// Copyright 2019 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_UBJSON_UBJSON_OPTIONS_HPP +#define JSONCONS_UBJSON_UBJSON_OPTIONS_HPP + +#include +#include // std::numeric_limits +#include +#include + +namespace jsoncons { namespace ubjson { + +class ubjson_options; + +class ubjson_options_common +{ + friend class ubjson_options; + + int max_nesting_depth_; +protected: + virtual ~ubjson_options_common() = default; + + ubjson_options_common() + : max_nesting_depth_(1024) + { + } + + ubjson_options_common(const ubjson_options_common&) = default; + ubjson_options_common& operator=(const ubjson_options_common&) = default; + ubjson_options_common(ubjson_options_common&&) = default; + ubjson_options_common& operator=(ubjson_options_common&&) = default; +public: + int max_nesting_depth() const + { + return max_nesting_depth_; + } +}; + +class ubjson_decode_options : public virtual ubjson_options_common +{ + friend class ubjson_options; + std::size_t max_items_; +public: + ubjson_decode_options() : + max_items_(1 << 24) + { + } + + std::size_t max_items() const + { + return max_items_; + } +}; + +class ubjson_encode_options : public virtual ubjson_options_common +{ + friend class ubjson_options; +public: + ubjson_encode_options() + { + } +}; + +class ubjson_options final : public ubjson_decode_options, public ubjson_encode_options +{ +public: + using ubjson_options_common::max_nesting_depth; + + ubjson_options& max_nesting_depth(int value) + { + this->max_nesting_depth_ = value; + return *this; + } + + ubjson_options& max_items(std::size_t value) + { + this->max_items_ = value; + return *this; + } +}; + +}} +#endif diff --git a/include/jsoncons_ext/ubjson/ubjson_parser.hpp b/include/jsoncons_ext/ubjson/ubjson_parser.hpp new file mode 100644 index 0000000..468f139 --- /dev/null +++ b/include/jsoncons_ext/ubjson/ubjson_parser.hpp @@ -0,0 +1,880 @@ +// Copyright 2017 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_UBJSON_UBJSON_PARSER_HPP +#define JSONCONS_UBJSON_UBJSON_PARSER_HPP + +#include +#include +#include // std::move +#include +#include +#include +#include +#include +#include +#include + +namespace jsoncons { namespace ubjson { + +enum class parse_mode {root,accept,array,indefinite_array,strongly_typed_array,map_key,map_value,strongly_typed_map_key,strongly_typed_map_value,indefinite_map_key,indefinite_map_value}; + +struct parse_state +{ + parse_mode mode; + std::size_t length; + uint8_t type; + std::size_t index; + + parse_state(parse_mode mode, std::size_t length, uint8_t type = 0) noexcept + : mode(mode), length(length), type(type), index(0) + { + } + + parse_state(const parse_state&) = default; + parse_state(parse_state&&) = default; +}; + +template > +class basic_ubjson_parser : public ser_context +{ + using char_type = char; + using char_traits_type = std::char_traits; + using temp_allocator_type = Allocator; + using char_allocator_type = typename std::allocator_traits:: template rebind_alloc; + using byte_allocator_type = typename std::allocator_traits:: template rebind_alloc; + using parse_state_allocator_type = typename std::allocator_traits:: template rebind_alloc; + + Source source_; + ubjson_decode_options options_; + bool more_; + bool done_; + std::basic_string,char_allocator_type> text_buffer_; + std::vector state_stack_; + int nesting_depth_; +public: + template + basic_ubjson_parser(Sourceable&& source, + const ubjson_decode_options& options = ubjson_decode_options(), + const Allocator alloc = Allocator()) + : source_(std::forward(source)), + options_(options), + more_(true), + done_(false), + text_buffer_(alloc), + state_stack_(alloc), + nesting_depth_(0) + { + state_stack_.emplace_back(parse_mode::root,0); + } + + void restart() + { + more_ = true; + } + + void reset() + { + more_ = true; + done_ = false; + text_buffer_.clear(); + state_stack_.clear(); + state_stack_.emplace_back(parse_mode::root,0,0); + nesting_depth_ = 0; + } + + template + void reset(Sourceable&& source) + { + source_ = std::forward(source); + reset(); + } + + bool done() const + { + return done_; + } + + bool stopped() const + { + return !more_; + } + + std::size_t line() const override + { + return 0; + } + + std::size_t column() const override + { + return source_.position(); + } + + void parse(json_visitor& visitor, std::error_code& ec) + { + while (!done_ && more_) + { + switch (state_stack_.back().mode) + { + case parse_mode::array: + { + if (state_stack_.back().index < state_stack_.back().length) + { + ++state_stack_.back().index; + read_type_and_value(visitor, ec); + if (ec) + { + return; + } + } + else + { + end_array(visitor, ec); + } + break; + } + case parse_mode::strongly_typed_array: + { + if (state_stack_.back().index < state_stack_.back().length) + { + ++state_stack_.back().index; + read_value(visitor, state_stack_.back().type, ec); + if (ec) + { + return; + } + } + else + { + end_array(visitor, ec); + } + break; + } + case parse_mode::indefinite_array: + { + auto c = source_.peek(); + if (c.eof) + { + ec = ubjson_errc::unexpected_eof; + more_ = false; + return; + } + if (c.value == jsoncons::ubjson::ubjson_type::end_array_marker) + { + source_.ignore(1); + end_array(visitor, ec); + if (ec) + { + return; + } + } + else + { + if (++state_stack_.back().index > options_.max_items()) + { + ec = ubjson_errc::max_items_exceeded; + more_ = false; + return; + } + read_type_and_value(visitor, ec); + if (ec) + { + return; + } + } + break; + } + case parse_mode::map_key: + { + if (state_stack_.back().index < state_stack_.back().length) + { + ++state_stack_.back().index; + read_key(visitor, ec); + if (ec) + { + return; + } + state_stack_.back().mode = parse_mode::map_value; + } + else + { + end_object(visitor, ec); + } + break; + } + case parse_mode::map_value: + { + state_stack_.back().mode = parse_mode::map_key; + read_type_and_value(visitor, ec); + if (ec) + { + return; + } + break; + } + case parse_mode::strongly_typed_map_key: + { + if (state_stack_.back().index < state_stack_.back().length) + { + ++state_stack_.back().index; + read_key(visitor, ec); + if (ec) + { + return; + } + state_stack_.back().mode = parse_mode::strongly_typed_map_value; + } + else + { + end_object(visitor, ec); + } + break; + } + case parse_mode::strongly_typed_map_value: + { + state_stack_.back().mode = parse_mode::strongly_typed_map_key; + read_value(visitor, state_stack_.back().type, ec); + if (ec) + { + return; + } + break; + } + case parse_mode::indefinite_map_key: + { + auto c = source_.peek(); + if (c.eof) + { + ec = ubjson_errc::unexpected_eof; + more_ = false; + return; + } + if (c.value == jsoncons::ubjson::ubjson_type::end_object_marker) + { + source_.ignore(1); + end_object(visitor, ec); + if (ec) + { + return; + } + } + else + { + if (++state_stack_.back().index > options_.max_items()) + { + ec = ubjson_errc::max_items_exceeded; + more_ = false; + return; + } + read_key(visitor, ec); + if (ec) + { + return; + } + state_stack_.back().mode = parse_mode::indefinite_map_value; + } + break; + } + case parse_mode::indefinite_map_value: + { + state_stack_.back().mode = parse_mode::indefinite_map_key; + read_type_and_value(visitor, ec); + if (ec) + { + return; + } + break; + } + case parse_mode::root: + { + state_stack_.back().mode = parse_mode::accept; + read_type_and_value(visitor, ec); + if (ec) + { + return; + } + break; + } + case parse_mode::accept: + { + JSONCONS_ASSERT(state_stack_.size() == 1); + state_stack_.clear(); + more_ = false; + done_ = true; + visitor.flush(); + break; + } + } + } + } +private: + void read_type_and_value(json_visitor& visitor, std::error_code& ec) + { + if (source_.is_error()) + { + ec = ubjson_errc::source_error; + more_ = false; + return; + } + + uint8_t b; + if (source_.read(&b, 1) == 0) + { + ec = ubjson_errc::unexpected_eof; + more_ = false; + return; + } + read_value(visitor, b, ec); + } + + void read_value(json_visitor& visitor, uint8_t type, std::error_code& ec) + { + switch (type) + { + case jsoncons::ubjson::ubjson_type::null_type: + { + more_ = visitor.null_value(semantic_tag::none, *this, ec); + break; + } + case jsoncons::ubjson::ubjson_type::no_op_type: + { + break; + } + case jsoncons::ubjson::ubjson_type::true_type: + { + more_ = visitor.bool_value(true, semantic_tag::none, *this, ec); + break; + } + case jsoncons::ubjson::ubjson_type::false_type: + { + more_ = visitor.bool_value(false, semantic_tag::none, *this, ec); + break; + } + case jsoncons::ubjson::ubjson_type::int8_type: + { + uint8_t buf[sizeof(int8_t)]; + if (source_.read(buf, sizeof(int8_t)) != sizeof(int8_t)) + { + ec = ubjson_errc::unexpected_eof; + more_ = false; + return; + } + int8_t val = binary::big_to_native(buf, sizeof(buf)); + more_ = visitor.int64_value(val, semantic_tag::none, *this, ec); + break; + } + case jsoncons::ubjson::ubjson_type::uint8_type: + { + uint8_t b; + if (source_.read(&b, 1) == 0) + { + ec = ubjson_errc::unexpected_eof; + more_ = false; + return; + } + more_ = visitor.uint64_value(b, semantic_tag::none, *this, ec); + break; + } + case jsoncons::ubjson::ubjson_type::int16_type: + { + uint8_t buf[sizeof(int16_t)]; + if (source_.read(buf, sizeof(int16_t)) != sizeof(int16_t)) + { + ec = ubjson_errc::unexpected_eof; + more_ = false; + return; + } + int16_t val = binary::big_to_native(buf, sizeof(buf)); + more_ = visitor.int64_value(val, semantic_tag::none, *this, ec); + break; + } + case jsoncons::ubjson::ubjson_type::int32_type: + { + uint8_t buf[sizeof(int32_t)]; + if (source_.read(buf, sizeof(int32_t)) != sizeof(int32_t)) + { + ec = ubjson_errc::unexpected_eof; + more_ = false; + return; + } + int32_t val = binary::big_to_native(buf, sizeof(buf)); + more_ = visitor.int64_value(val, semantic_tag::none, *this, ec); + break; + } + case jsoncons::ubjson::ubjson_type::int64_type: + { + uint8_t buf[sizeof(int64_t)]; + if (source_.read(buf, sizeof(int64_t)) != sizeof(int64_t)) + { + ec = ubjson_errc::unexpected_eof; + more_ = false; + return; + } + int64_t val = binary::big_to_native(buf, sizeof(buf)); + more_ = visitor.int64_value(val, semantic_tag::none, *this, ec); + break; + } + case jsoncons::ubjson::ubjson_type::float32_type: + { + uint8_t buf[sizeof(float)]; + if (source_.read(buf, sizeof(float)) != sizeof(float)) + { + ec = ubjson_errc::unexpected_eof; + more_ = false; + return; + } + float val = binary::big_to_native(buf, sizeof(buf)); + more_ = visitor.double_value(val, semantic_tag::none, *this, ec); + break; + } + case jsoncons::ubjson::ubjson_type::float64_type: + { + uint8_t buf[sizeof(double)]; + if (source_.read(buf, sizeof(double)) != sizeof(double)) + { + ec = ubjson_errc::unexpected_eof; + more_ = false; + return; + } + double val = binary::big_to_native(buf, sizeof(buf)); + more_ = visitor.double_value(val, semantic_tag::none, *this, ec); + break; + } + case jsoncons::ubjson::ubjson_type::char_type: + { + text_buffer_.clear(); + if (source_reader::read(source_,text_buffer_,1) != 1) + { + ec = ubjson_errc::unexpected_eof; + more_ = false; + return; + } + auto result = unicode_traits::validate(text_buffer_.data(),text_buffer_.size()); + if (result.ec != unicode_traits::conv_errc()) + { + ec = ubjson_errc::invalid_utf8_text_string; + more_ = false; + return; + } + more_ = visitor.string_value(text_buffer_, semantic_tag::none, *this, ec); + break; + } + case jsoncons::ubjson::ubjson_type::string_type: + { + std::size_t length = get_length(ec); + if (ec) + { + return; + } + text_buffer_.clear(); + if (source_reader::read(source_,text_buffer_,length) != length) + { + ec = ubjson_errc::unexpected_eof; + more_ = false; + return; + } + auto result = unicode_traits::validate(text_buffer_.data(),text_buffer_.size()); + if (result.ec != unicode_traits::conv_errc()) + { + ec = ubjson_errc::invalid_utf8_text_string; + more_ = false; + return; + } + more_ = visitor.string_value(jsoncons::basic_string_view(text_buffer_.data(),text_buffer_.length()), semantic_tag::none, *this, ec); + break; + } + case jsoncons::ubjson::ubjson_type::high_precision_number_type: + { + std::size_t length = get_length(ec); + if (ec) + { + return; + } + text_buffer_.clear(); + if (source_reader::read(source_,text_buffer_,length) != length) + { + ec = ubjson_errc::unexpected_eof; + more_ = false; + return; + } + if (jsoncons::detail::is_base10(text_buffer_.data(),text_buffer_.length())) + { + more_ = visitor.string_value(jsoncons::basic_string_view(text_buffer_.data(),text_buffer_.length()), semantic_tag::bigint, *this, ec); + } + else + { + more_ = visitor.string_value(jsoncons::basic_string_view(text_buffer_.data(),text_buffer_.length()), semantic_tag::bigdec, *this, ec); + } + break; + } + case jsoncons::ubjson::ubjson_type::start_array_marker: + { + begin_array(visitor,ec); + break; + } + case jsoncons::ubjson::ubjson_type::start_object_marker: + { + begin_object(visitor, ec); + break; + } + default: + { + ec = ubjson_errc::unknown_type; + break; + } + } + if (ec) + { + more_ = false; + } + } + + void begin_array(json_visitor& visitor, std::error_code& ec) + { + if (JSONCONS_UNLIKELY(++nesting_depth_ > options_.max_nesting_depth())) + { + ec = ubjson_errc::max_nesting_depth_exceeded; + more_ = false; + return; + } + + auto c = source_.peek(); + if (c.eof) + { + ec = ubjson_errc::unexpected_eof; + more_ = false; + return; + } + if (c.value == jsoncons::ubjson::ubjson_type::type_marker) + { + source_.ignore(1); + uint8_t b; + if (source_.read(&b, 1) == 0) + { + ec = ubjson_errc::unexpected_eof; + more_ = false; + return; + } + c = source_.peek(); + if (c.eof) + { + ec = ubjson_errc::unexpected_eof; + more_ = false; + return; + } + if (c.value == jsoncons::ubjson::ubjson_type::count_marker) + { + source_.ignore(1); + std::size_t length = get_length(ec); + if (ec) + { + return; + } + if (length > options_.max_items()) + { + ec = ubjson_errc::max_items_exceeded; + more_ = false; + return; + } + state_stack_.emplace_back(parse_mode::strongly_typed_array,length,b); + more_ = visitor.begin_array(length, semantic_tag::none, *this, ec); + } + else + { + ec = ubjson_errc::count_required_after_type; + more_ = false; + return; + } + } + else if (c.value == jsoncons::ubjson::ubjson_type::count_marker) + { + source_.ignore(1); + std::size_t length = get_length(ec); + if (ec) + { + return; + } + if (length > options_.max_items()) + { + ec = ubjson_errc::max_items_exceeded; + more_ = false; + return; + } + state_stack_.emplace_back(parse_mode::array,length); + more_ = visitor.begin_array(length, semantic_tag::none, *this, ec); + } + else + { + state_stack_.emplace_back(parse_mode::indefinite_array,0); + more_ = visitor.begin_array(semantic_tag::none, *this, ec); + } + } + + void end_array(json_visitor& visitor, std::error_code& ec) + { + --nesting_depth_; + + more_ = visitor.end_array(*this, ec); + state_stack_.pop_back(); + } + + void begin_object(json_visitor& visitor, std::error_code& ec) + { + if (JSONCONS_UNLIKELY(++nesting_depth_ > options_.max_nesting_depth())) + { + ec = ubjson_errc::max_nesting_depth_exceeded; + more_ = false; + return; + } + + auto c = source_.peek(); + if (c.eof) + { + ec = ubjson_errc::unexpected_eof; + more_ = false; + return; + } + if (c.value == jsoncons::ubjson::ubjson_type::type_marker) + { + source_.ignore(1); + uint8_t b; + if (source_.read(&b, 1) == 0) + { + ec = ubjson_errc::unexpected_eof; + more_ = false; + return; + } + c = source_.peek(); + if (c.eof) + { + ec = ubjson_errc::unexpected_eof; + more_ = false; + return; + } + if (c.value == jsoncons::ubjson::ubjson_type::count_marker) + { + source_.ignore(1); + std::size_t length = get_length(ec); + if (ec) + { + return; + } + if (length > options_.max_items()) + { + ec = ubjson_errc::max_items_exceeded; + more_ = false; + return; + } + state_stack_.emplace_back(parse_mode::strongly_typed_map_key,length,b); + more_ = visitor.begin_object(length, semantic_tag::none, *this, ec); + } + else + { + ec = ubjson_errc::count_required_after_type; + more_ = false; + return; + } + } + else + { + c = source_.peek(); + if (c.eof) + { + ec = ubjson_errc::unexpected_eof; + more_ = false; + return; + } + if (c.value == jsoncons::ubjson::ubjson_type::count_marker) + { + source_.ignore(1); + std::size_t length = get_length(ec); + if (ec) + { + return; + } + if (length > options_.max_items()) + { + ec = ubjson_errc::max_items_exceeded; + more_ = false; + return; + } + state_stack_.emplace_back(parse_mode::map_key,length); + more_ = visitor.begin_object(length, semantic_tag::none, *this, ec); + } + else + { + state_stack_.emplace_back(parse_mode::indefinite_map_key,0); + more_ = visitor.begin_object(semantic_tag::none, *this, ec); + } + } + } + + void end_object(json_visitor& visitor, std::error_code& ec) + { + --nesting_depth_; + more_ = visitor.end_object(*this, ec); + state_stack_.pop_back(); + } + + std::size_t get_length(std::error_code& ec) + { + std::size_t length = 0; + uint8_t type; + if (source_.read(&type, 1) == 0) + { + ec = ubjson_errc::unexpected_eof; + more_ = false; + return length; + } + switch (type) + { + case jsoncons::ubjson::ubjson_type::int8_type: + { + uint8_t buf[sizeof(int8_t)]; + if (source_.read(buf, sizeof(int8_t)) != sizeof(int8_t)) + { + ec = ubjson_errc::unexpected_eof; + more_ = false; + return length; + } + int8_t val = binary::big_to_native(buf, sizeof(buf)); + if (val >= 0) + { + length = val; + } + else + { + ec = ubjson_errc::length_is_negative; + more_ = false; + return length; + } + break; + } + case jsoncons::ubjson::ubjson_type::uint8_type: + { + uint8_t b; + if (source_.read(&b, 1) == 0) + { + ec = ubjson_errc::unexpected_eof; + more_ = false; + return length; + } + length = b; + break; + } + case jsoncons::ubjson::ubjson_type::int16_type: + { + uint8_t buf[sizeof(int16_t)]; + if (source_.read(buf, sizeof(int16_t)) != sizeof(int16_t)) + { + ec = ubjson_errc::unexpected_eof; + more_ = false; + return length; + } + int16_t val = binary::big_to_native(buf, sizeof(buf)); + if (val >= 0) + { + length = val; + } + else + { + ec = ubjson_errc::length_is_negative; + more_ = false; + return length; + } + break; + } + case jsoncons::ubjson::ubjson_type::int32_type: + { + uint8_t buf[sizeof(int32_t)]; + if (source_.read(buf, sizeof(int32_t)) != sizeof(int32_t)) + { + ec = ubjson_errc::unexpected_eof; + more_ = false; + return length; + } + int32_t val = binary::big_to_native(buf, sizeof(buf)); + if (val >= 0) + { + length = static_cast(val); + } + else + { + ec = ubjson_errc::length_is_negative; + more_ = false; + return length; + } + break; + } + case jsoncons::ubjson::ubjson_type::int64_type: + { + uint8_t buf[sizeof(int64_t)]; + if (source_.read(buf, sizeof(int64_t)) != sizeof(int64_t)) + { + ec = ubjson_errc::unexpected_eof; + more_ = false; + return length; + } + int64_t val = binary::big_to_native(buf, sizeof(buf)); + if (val >= 0) + { + length = (std::size_t)val; + if (length != (uint64_t)val) + { + ec = ubjson_errc::number_too_large; + more_ = false; + return length; + } + } + else + { + ec = ubjson_errc::length_is_negative; + more_ = false; + return length; + } + break; + } + default: + { + ec = ubjson_errc::length_must_be_integer; + more_ = false; + return length; + } + } + return length; + } + + void read_key(json_visitor& visitor, std::error_code& ec) + { + std::size_t length = get_length(ec); + if (ec) + { + ec = ubjson_errc::key_expected; + more_ = false; + return; + } + text_buffer_.clear(); + if (source_reader::read(source_,text_buffer_,length) != length) + { + ec = ubjson_errc::unexpected_eof; + more_ = false; + return; + } + + auto result = unicode_traits::validate(text_buffer_.data(),text_buffer_.size()); + if (result.ec != unicode_traits::conv_errc()) + { + ec = ubjson_errc::invalid_utf8_text_string; + more_ = false; + return; + } + more_ = visitor.key(jsoncons::basic_string_view(text_buffer_.data(),text_buffer_.length()), *this, ec); + } +}; + +}} + +#endif diff --git a/include/jsoncons_ext/ubjson/ubjson_reader.hpp b/include/jsoncons_ext/ubjson/ubjson_reader.hpp new file mode 100644 index 0000000..210403a --- /dev/null +++ b/include/jsoncons_ext/ubjson/ubjson_reader.hpp @@ -0,0 +1,92 @@ +// Copyright 2017 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_UBJSON_UBJSON_READER_HPP +#define JSONCONS_UBJSON_UBJSON_READER_HPP + +#include +#include +#include // std::move +#include +#include +#include +#include +#include +#include +#include + +namespace jsoncons { namespace ubjson { + +template > +class basic_ubjson_reader +{ + basic_ubjson_parser parser_; + json_visitor& visitor_; +public: + template + basic_ubjson_reader(Sourceable&& source, + json_visitor& visitor, + const Allocator alloc) + : basic_ubjson_reader(std::forward(source), + visitor, + ubjson_decode_options(), + alloc) + { + } + + template + basic_ubjson_reader(Sourceable&& source, + json_visitor& visitor, + const ubjson_decode_options& options = ubjson_decode_options(), + const Allocator alloc=Allocator()) + : parser_(std::forward(source), options, alloc), + visitor_(visitor) + { + } + + void read() + { + std::error_code ec; + read(ec); + if (ec) + { + JSONCONS_THROW(ser_error(ec,line(),column())); + } + } + + void read(std::error_code& ec) + { + parser_.reset(); + parser_.parse(visitor_, ec); + if (ec) + { + return; + } + } + + std::size_t line() const + { + return parser_.line(); + } + + std::size_t column() const + { + return parser_.column(); + } +}; + +using ubjson_stream_reader = basic_ubjson_reader; + +using ubjson_bytes_reader = basic_ubjson_reader; + +#if !defined(JSONCONS_NO_DEPRECATED) +JSONCONS_DEPRECATED_MSG("Instead, use ubjson_stream_reader") typedef ubjson_stream_reader ubjson_reader; +JSONCONS_DEPRECATED_MSG("Instead, use ubjson_bytes_reader") typedef ubjson_bytes_reader ubjson_buffer_reader; +#endif + +}} + +#endif diff --git a/include/jsoncons_ext/ubjson/ubjson_type.hpp b/include/jsoncons_ext/ubjson/ubjson_type.hpp new file mode 100644 index 0000000..ef219ce --- /dev/null +++ b/include/jsoncons_ext/ubjson/ubjson_type.hpp @@ -0,0 +1,43 @@ +// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_UBJSON_UBJSON_TYPE_HPP +#define JSONCONS_UBJSON_UBJSON_TYPE_HPP + +#include +#include +#include + +namespace jsoncons { namespace ubjson { + + namespace ubjson_type + { + const uint8_t null_type = 'Z'; + const uint8_t no_op_type = 'N'; + const uint8_t true_type = 'T'; + const uint8_t false_type = 'F'; + const uint8_t int8_type = 'i'; + const uint8_t uint8_type = 'U'; + const uint8_t int16_type = 'I'; + const uint8_t int32_type = 'l'; + const uint8_t int64_type = 'L'; + const uint8_t float32_type = 'd'; + const uint8_t float64_type = 'D'; + const uint8_t high_precision_number_type = 'H'; + const uint8_t char_type = 'C'; + const uint8_t string_type = 'S'; + const uint8_t start_array_marker = '['; + const uint8_t end_array_marker = ']'; + const uint8_t start_object_marker = '{'; + const uint8_t end_object_marker = '}'; + const uint8_t type_marker = '$'; + const uint8_t count_marker = '#'; + } + +} // namespace ubjson +} // namespace jsoncons + +#endif -- cgit v1.2.3