Compare commits

..

15 Commits

Author SHA1 Message Date
Niels Lohmann
183390c10b Merge branch 'release/3.1.2' 2018-03-14 21:47:50 +01:00
Niels Lohmann
c8ea63a31b Merge branch 'release/3.1.1' 2018-02-13 19:36:20 +01:00
Niels Lohmann
15acf260ca Merge branch 'release/3.1.0' 2018-02-02 00:05:55 +01:00
Niels Lohmann
a43347e1f9 Merge branch 'develop' 2017-12-29 20:35:02 +01:00
Niels Lohmann
5681e55da8 Merge branch 'release/3.0.1' 2017-12-29 20:24:20 +01:00
Niels Lohmann
9f81beb5e2 Merge branch 'release/3.0.0' 2017-12-17 11:04:04 +01:00
Niels Lohmann
c0d511ea50 🔀 merge branch 'release/2.1.1' 2017-02-25 16:36:46 +01:00
Niels Lohmann
1e99a0273f 🔀 merge branch 'release/2.1.0' 2017-01-28 18:42:27 +01:00
Niels Lohmann
528bc96d7e Merge branch 'develop' 2017-01-02 16:41:33 +01:00
Niels Lohmann
1c98ce869c 🔀 merge branch 'release/2.0.10' 2017-01-02 16:37:52 +01:00
Niels Lohmann
6df60b0448 🔀 Merge branch 'release/2.0.9' 2016-12-16 21:34:54 +01:00
Niels Lohmann
272ebdc900 🔖 Merge branch 'release/2.0.8' 2016-12-02 20:07:14 +01:00
Niels
79a9d00e15 Merge branch 'develop' 2016-11-03 18:54:59 +01:00
Niels
a4d13c92ba Merge branch 'release/2.0.7' 2016-11-02 20:52:24 +01:00
Niels
60bba02cc6 Merge branch 'release/2.0.6' 2016-10-15 16:47:56 +02:00
503 changed files with 5162 additions and 16361 deletions

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@@ -54,7 +54,7 @@ To make changes, you need to edit the following files:
## Please don't
- The C++11 support varies between different **compilers** and versions. Please note the [list of supported compilers](https://github.com/nlohmann/json/blob/master/README.md#supported-compilers). Some compilers like GCC 4.7 (and earlier), Clang 3.3 (and earlier), or Microsoft Visual Studio 13.0 and earlier are known not to work due to missing or incomplete C++11 support. Please refrain from proposing changes that work around these compiler's limitations with `#ifdef`s or other means.
- The C++11 support varies between different **compilers** and versions. Please note the [list of supported compilers](https://github.com/nlohmann/json/blob/master/README.md#supported-compilers). Some compilers like GCC 4.8 (and earlier), Clang 3.3 (and earlier), or Microsoft Visual Studio 13.0 and earlier are known not to work due to missing or incomplete C++11 support. Please refrain from proposing changes that work around these compiler's limitations with `#ifdef`s or other means.
- Specifically, I am aware of compilation problems with **Microsoft Visual Studio** (there even is an [issue label](https://github.com/nlohmann/json/issues?utf8=✓&q=label%3A%22visual+studio%22+) for these kind of bugs). I understand that even in 2016, complete C++11 support isn't there yet. But please also understand that I do not want to drop features or uglify the code just to make Microsoft's sub-standard compiler happy. The past has shown that there are ways to express the functionality such that the code compiles with the most recent MSVC - unfortunately, this is not the main objective of the project.
- Please refrain from proposing changes that would **break [JSON](http://json.org) conformance**. If you propose a conformant extension of JSON to be supported by the library, please motivate this extension.
- We shall not extend the library to **support comments**. There is quite some [controversy](https://www.reddit.com/r/programming/comments/4v6chu/why_json_doesnt_support_comments_douglas_crockford/) around this topic, and there were quite some [issues](https://github.com/nlohmann/json/issues/376) on this. We believe that JSON is fine without comments.

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@@ -1,19 +1,22 @@
---
name: Bug report
about: Create a report to help us improve
---
- What is the issue you have?
- Please describe the steps to reproduce the issue. Can you provide a small but working code example?
- What is the expected behavior?
- And what is the actual behavior instead?
- Which compiler and operating system are you using? Is it a [supported compiler](https://github.com/nlohmann/json#supported-compilers)?
- Did you use a released version of the library or the version from the `develop` branch?
- If you experience a compilation error: can you [compile and run the unit tests](https://github.com/nlohmann/json#execute-unit-tests)?
**Bug Report**
- What is the issue you have?
- Please describe the steps to reproduce the issue. Can you provide a small but working code example?
- What is the expected behavior?
- And what is the actual behavior instead?
- Which compiler and operating system are you using? Is it a [supported compiler](https://github.com/nlohmann/json#supported-compilers)?
- Did you use a released version of the library or the version from the `develop` branch?
- If you experience a compilation error: can you [compile and run the unit tests](https://github.com/nlohmann/json#execute-unit-tests)?
**Feature Request**
- Describe the feature in as much detail as possible.
- Include sample usage where appropriate.

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@@ -1,9 +0,0 @@
---
name: Feature request
about: Suggest an idea for this project
---
- Describe the feature in as much detail as possible.
- Include sample usage where appropriate.

View File

@@ -13,7 +13,7 @@ Read the [Contribution Guidelines](https://github.com/nlohmann/json/blob/develop
## Please don't
- The C++11 support varies between different **compilers** and versions. Please note the [list of supported compilers](https://github.com/nlohmann/json/blob/master/README.md#supported-compilers). Some compilers like GCC 4.7 (and earlier), Clang 3.3 (and earlier), or Microsoft Visual Studio 13.0 and earlier are known not to work due to missing or incomplete C++11 support. Please refrain from proposing changes that work around these compiler's limitations with `#ifdef`s or other means.
- The C++11 support varies between different **compilers** and versions. Please note the [list of supported compilers](https://github.com/nlohmann/json/blob/master/README.md#supported-compilers). Some compilers like GCC 4.8 (and earlier), Clang 3.3 (and earlier), or Microsoft Visual Studio 13.0 and earlier are known not to work due to missing or incomplete C++11 support. Please refrain from proposing changes that work around these compiler's limitations with `#ifdef`s or other means.
- Specifically, I am aware of compilation problems with **Microsoft Visual Studio** (there even is an [issue label](https://github.com/nlohmann/json/issues?utf8=✓&q=label%3A%22visual+studio%22+) for these kind of bugs). I understand that even in 2016, complete C++11 support isn't there yet. But please also understand that I do not want to drop features or uglify the code just to make Microsoft's sub-standard compiler happy. The past has shown that there are ways to express the functionality such that the code compiles with the most recent MSVC - unfortunately, this is not the main objective of the project.
- Please refrain from proposing changes that would **break [JSON](http://json.org) conformance**. If you propose a conformant extension of JSON to be supported by the library, please motivate this extension.
- Please do not open pull requests that address **multiple issues**.

View File

@@ -155,28 +155,11 @@ matrix:
- os: osx
osx_image: xcode9.2
- os: osx
osx_image: xcode9.3
- os: osx
osx_image: xcode9.4
- os: osx
osx_image: xcode10
# Linux / GCC
- os: linux
compiler: gcc
env: compiler=g++-4.8
addons:
apt:
sources: ['ubuntu-toolchain-r-test']
packages: ['g++-4.8', 'ninja-build']
- os: linux
compiler: gcc
env: compiler=g++-4.9
env: COMPILER=g++-4.9
addons:
apt:
sources: ['ubuntu-toolchain-r-test']
@@ -206,23 +189,15 @@ matrix:
sources: ['ubuntu-toolchain-r-test']
packages: ['g++-7', 'ninja-build']
- os: linux
compiler: gcc
env: COMPILER=g++-8
addons:
apt:
sources: ['ubuntu-toolchain-r-test']
packages: ['g++-8', 'ninja-build']
- os: linux
compiler: gcc
env:
- COMPILER=g++-8
- COMPILER=g++-7
- CXXFLAGS=-std=c++17
addons:
apt:
sources: ['ubuntu-toolchain-r-test']
packages: ['g++-8', 'ninja-build']
packages: ['g++-7', 'ninja-build']
# Linux / Clang
@@ -282,23 +257,15 @@ matrix:
sources: ['ubuntu-toolchain-r-test', 'llvm-toolchain-trusty-5.0']
packages: ['g++-6', 'clang-5.0', 'ninja-build']
- os: linux
compiler: clang
env: COMPILER=clang++-6.0
addons:
apt:
sources: ['ubuntu-toolchain-r-test', 'llvm-toolchain-trusty-6.0']
packages: ['g++-6', 'clang-6.0', 'ninja-build']
- os: linux
compiler: clang
env:
- COMPILER=clang++-6.0
- COMPILER=clang++-5.0
- CXXFLAGS=-std=c++1z
addons:
apt:
sources: ['ubuntu-toolchain-r-test', 'llvm-toolchain-trusty-6.0']
packages: ['g++-6', 'clang-6.0', 'ninja-build']
sources: ['ubuntu-toolchain-r-test', 'llvm-toolchain-trusty-5.0']
packages: ['g++-6', 'clang-5.0', 'ninja-build']
################
# build script #
@@ -310,7 +277,6 @@ script:
if [[ (-x $(which brew)) ]]; then
brew update
brew install cmake ninja
brew upgrade cmake
cmake --version
fi

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@@ -1,10 +1,10 @@
cmake_minimum_required(VERSION 3.8)
cmake_minimum_required(VERSION 3.0.0)
##
## PROJECT
## name and version
##
project(nlohmann_json VERSION 3.4.0 LANGUAGES CXX)
project(nlohmann_json VERSION 3.1.2 LANGUAGES CXX)
##
## INCLUDE
@@ -22,15 +22,13 @@ option(JSON_MultipleHeaders "Use non-amalgamated version of the library." OFF)
## CONFIGURATION
##
set(NLOHMANN_JSON_TARGET_NAME ${PROJECT_NAME})
set(NLOHMANN_JSON_CONFIG_INSTALL_DIR "lib/cmake/${PROJECT_NAME}"
CACHE INTERNAL "")
set(NLOHMANN_JSON_CONFIG_INSTALL_DIR "lib/cmake/${PROJECT_NAME}")
set(NLOHMANN_JSON_INCLUDE_INSTALL_DIR "include")
set(NLOHMANN_JSON_TARGETS_EXPORT_NAME "${PROJECT_NAME}Targets")
set(NLOHMANN_JSON_CMAKE_CONFIG_TEMPLATE "cmake/config.cmake.in")
set(NLOHMANN_JSON_CMAKE_CONFIG_DIR "${CMAKE_CURRENT_BINARY_DIR}")
set(NLOHMANN_JSON_CMAKE_CONFIG_DIR "${CMAKE_CURRENT_BINARY_DIR}/cmake_config")
set(NLOHMANN_JSON_CMAKE_VERSION_CONFIG_FILE "${NLOHMANN_JSON_CMAKE_CONFIG_DIR}/${PROJECT_NAME}ConfigVersion.cmake")
set(NLOHMANN_JSON_CMAKE_PROJECT_CONFIG_FILE "${NLOHMANN_JSON_CMAKE_CONFIG_DIR}/${PROJECT_NAME}Config.cmake")
set(NLOHMANN_JSON_CMAKE_PROJECT_TARGETS_FILE "${NLOHMANN_JSON_CMAKE_CONFIG_DIR}/${PROJECT_NAME}Targets.cmake")
if (JSON_MultipleHeaders)
set(NLOHMANN_JSON_INCLUDE_BUILD_DIR "${PROJECT_SOURCE_DIR}/include/")
@@ -45,8 +43,6 @@ endif()
## create target and add include path
##
add_library(${NLOHMANN_JSON_TARGET_NAME} INTERFACE)
add_library(${PROJECT_NAME}::${NLOHMANN_JSON_TARGET_NAME} ALIAS ${NLOHMANN_JSON_TARGET_NAME})
target_compile_features(${NLOHMANN_JSON_TARGET_NAME} INTERFACE cxx_std_11)
target_include_directories(
${NLOHMANN_JSON_TARGET_NAME}
@@ -55,8 +51,8 @@ target_include_directories(
$<INSTALL_INTERFACE:include>
)
## add debug view definition file for msvc (natvis)
if (MSVC)
## add debug view defintion file for msvc (natvis) [cmake <= 3.2.2 does not support export of source files]
if (MSVC AND CMAKE_VERSION VERSION_GREATER "3.2.2")
set(NLOHMANN_ADD_NATVIS TRUE)
set(NLOHMANN_NATVIS_FILE "nlohmann_json.natvis")
target_sources(
@@ -66,7 +62,7 @@ if (MSVC)
$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/${NLOHMANN_NATVIS_FILE}>
)
endif()
##
## TESTS
## create and configure the unit test target
@@ -86,10 +82,10 @@ include(CMakePackageConfigHelpers)
write_basic_package_version_file(
${NLOHMANN_JSON_CMAKE_VERSION_CONFIG_FILE} COMPATIBILITY SameMajorVersion
)
configure_file(
configure_package_config_file(
${NLOHMANN_JSON_CMAKE_CONFIG_TEMPLATE}
${NLOHMANN_JSON_CMAKE_PROJECT_CONFIG_FILE}
@ONLY
INSTALL_DESTINATION ${NLOHMANN_JSON_CONFIG_INSTALL_DIR}
)
install(
@@ -106,11 +102,6 @@ if (NLOHMANN_ADD_NATVIS)
DESTINATION .
)
endif()
export(
TARGETS ${NLOHMANN_JSON_TARGET_NAME}
NAMESPACE ${PROJECT_NAME}::
FILE ${NLOHMANN_JSON_CMAKE_PROJECT_TARGETS_FILE}
)
install(
TARGETS ${NLOHMANN_JSON_TARGET_NAME}
EXPORT ${NLOHMANN_JSON_TARGETS_EXPORT_NAME}
@@ -118,6 +109,5 @@ install(
)
install(
EXPORT ${NLOHMANN_JSON_TARGETS_EXPORT_NAME}
NAMESPACE ${PROJECT_NAME}::
DESTINATION ${NLOHMANN_JSON_CONFIG_INSTALL_DIR}
)

View File

@@ -1,304 +1,6 @@
# Change Log
All notable changes to this project will be documented in this file. This project adheres to [Semantic Versioning](http://semver.org/).
## [v3.4.0](https://github.com/nlohmann/json/releases/tag/v3.4.0) (2018-10-30)
[Full Changelog](https://github.com/nlohmann/json/compare/v3.3.0...v3.4.0)
- Big uint64\_t values are serialized wrong [\#1327](https://github.com/nlohmann/json/issues/1327)
- \[Question\] Efficient check for equivalency? [\#1325](https://github.com/nlohmann/json/issues/1325)
- Can't use ifstream and .clear\(\) [\#1321](https://github.com/nlohmann/json/issues/1321)
- \[Warning\] -Wparentheses on line 555 on single\_include [\#1319](https://github.com/nlohmann/json/issues/1319)
- Compilation error using at and find with enum struct [\#1316](https://github.com/nlohmann/json/issues/1316)
- Parsing JSON from a web address [\#1311](https://github.com/nlohmann/json/issues/1311)
- How to convert JSON to Struct with embeded subject [\#1310](https://github.com/nlohmann/json/issues/1310)
- Null safety/coalescing function? [\#1309](https://github.com/nlohmann/json/issues/1309)
- Building fails using single include file: json.hpp [\#1308](https://github.com/nlohmann/json/issues/1308)
- json::parse\(std::string\) Exception inside packaged Lib [\#1306](https://github.com/nlohmann/json/issues/1306)
- Problem in Dockerfile with installation of library [\#1304](https://github.com/nlohmann/json/issues/1304)
- compile error in from\_json converting to container with std::pair [\#1299](https://github.com/nlohmann/json/issues/1299)
- Json that I am trying to parse, and I am lost Structure Array below top level [\#1293](https://github.com/nlohmann/json/issues/1293)
- Serializing std::variant causes stack overflow [\#1292](https://github.com/nlohmann/json/issues/1292)
- How do I go about customising from\_json to support \_\_int128\_t/\_\_uint128\_t? [\#1290](https://github.com/nlohmann/json/issues/1290)
- merge\_patch: inconsistent behaviour merging empty sub-object [\#1289](https://github.com/nlohmann/json/issues/1289)
- Buffer over/underrun using UBJson? [\#1288](https://github.com/nlohmann/json/issues/1288)
- Enable the latest C++ standard with Visual Studio [\#1287](https://github.com/nlohmann/json/issues/1287)
- truncation of constant value in to\_cbor\(\) [\#1286](https://github.com/nlohmann/json/issues/1286)
- eosio.wasmsdk error [\#1284](https://github.com/nlohmann/json/issues/1284)
- use the same interface for writing arrays and non-arrays [\#1283](https://github.com/nlohmann/json/issues/1283)
- How to read json file with optional entries and entries with different types [\#1281](https://github.com/nlohmann/json/issues/1281)
- merge result not as espected [\#1279](https://github.com/nlohmann/json/issues/1279)
- how to get only "name" from below json [\#1278](https://github.com/nlohmann/json/issues/1278)
- syntax error on right json string [\#1276](https://github.com/nlohmann/json/issues/1276)
- Parsing JSON Array where members have no key, using custom types [\#1267](https://github.com/nlohmann/json/issues/1267)
- I get a json exception periodically from json::parse for the same json [\#1263](https://github.com/nlohmann/json/issues/1263)
- serialize std::variant\<...\> [\#1261](https://github.com/nlohmann/json/issues/1261)
- GCC 8.2.1. Compilation error: invalid conversion from... [\#1246](https://github.com/nlohmann/json/issues/1246)
- BSON support [\#1244](https://github.com/nlohmann/json/issues/1244)
- enum to json mapping [\#1208](https://github.com/nlohmann/json/issues/1208)
- Soften the landing when dumping non-UTF8 strings \(type\_error.316 exception\) [\#1198](https://github.com/nlohmann/json/issues/1198)
- CMakeLists.txt in release zips? [\#1184](https://github.com/nlohmann/json/issues/1184)
- CBOR byte string support [\#1129](https://github.com/nlohmann/json/issues/1129)
- Add macro to define enum/JSON mapping [\#1323](https://github.com/nlohmann/json/pull/1323) ([nlohmann](https://github.com/nlohmann))
- Add BSON support [\#1320](https://github.com/nlohmann/json/pull/1320) ([nlohmann](https://github.com/nlohmann))
- Properly convert constants to CharType [\#1315](https://github.com/nlohmann/json/pull/1315) ([nlohmann](https://github.com/nlohmann))
- Allow to set error handler for decoding errors [\#1314](https://github.com/nlohmann/json/pull/1314) ([nlohmann](https://github.com/nlohmann))
- Add Meson related info to README [\#1305](https://github.com/nlohmann/json/pull/1305) ([koponomarenko](https://github.com/koponomarenko))
- Improve diagnostic messages for binary formats [\#1303](https://github.com/nlohmann/json/pull/1303) ([nlohmann](https://github.com/nlohmann))
- add new is\_constructible\_\* traits used in from\_json [\#1301](https://github.com/nlohmann/json/pull/1301) ([theodelrieu](https://github.com/theodelrieu))
- add constraints for variadic json\_ref constructors [\#1294](https://github.com/nlohmann/json/pull/1294) ([theodelrieu](https://github.com/theodelrieu))
- Improve diagnostic messages [\#1282](https://github.com/nlohmann/json/pull/1282) ([nlohmann](https://github.com/nlohmann))
- Removed linter warnings [\#1280](https://github.com/nlohmann/json/pull/1280) ([nlohmann](https://github.com/nlohmann))
- Thirdparty benchmark: Fix Clang detection. [\#1277](https://github.com/nlohmann/json/pull/1277) ([Lord-Kamina](https://github.com/Lord-Kamina))
## [v3.3.0](https://github.com/nlohmann/json/releases/tag/v3.3.0) (2018-10-05)
[Full Changelog](https://github.com/nlohmann/json/compare/v3.2.0...v3.3.0)
- When key is not found print the key name into error too [\#1273](https://github.com/nlohmann/json/issues/1273)
- Visual Studio 2017 15.8.5 "conditional expression is constant" warning on Line 1851 in json.hpp [\#1268](https://github.com/nlohmann/json/issues/1268)
- how can we get this working on WSL? [\#1264](https://github.com/nlohmann/json/issues/1264)
- Help needed [\#1259](https://github.com/nlohmann/json/issues/1259)
- A way to get to a JSON values "key" [\#1258](https://github.com/nlohmann/json/issues/1258)
- While compiling got 76 errors [\#1255](https://github.com/nlohmann/json/issues/1255)
- Two blackslashes on json output file [\#1253](https://github.com/nlohmann/json/issues/1253)
- Including nlohmann the badwrong way. [\#1250](https://github.com/nlohmann/json/issues/1250)
- how to build with clang? [\#1247](https://github.com/nlohmann/json/issues/1247)
- Cmake target\_link\_libraries unable to find nlohmann\_json since version 3.2.0 [\#1243](https://github.com/nlohmann/json/issues/1243)
- \[Question\] Access to end\(\) iterator reference [\#1242](https://github.com/nlohmann/json/issues/1242)
- Parsing different json format [\#1241](https://github.com/nlohmann/json/issues/1241)
- Parsing Multiple JSON Files [\#1240](https://github.com/nlohmann/json/issues/1240)
- Doesn't compile under C++17 [\#1239](https://github.com/nlohmann/json/issues/1239)
- Conversion operator for nlohmann::json is not SFINAE friendly [\#1237](https://github.com/nlohmann/json/issues/1237)
- Custom deserialization of number\_float\_t [\#1236](https://github.com/nlohmann/json/issues/1236)
- Move tests to a separate repo [\#1235](https://github.com/nlohmann/json/issues/1235)
- deprecated-declarations warnings when compiling tests with GCC 8.2.1. [\#1233](https://github.com/nlohmann/json/issues/1233)
- Incomplete type with json\_fwd.hpp [\#1232](https://github.com/nlohmann/json/issues/1232)
- Parse Error [\#1229](https://github.com/nlohmann/json/issues/1229)
- json::get function with argument [\#1227](https://github.com/nlohmann/json/issues/1227)
- questions regarding from\_json [\#1226](https://github.com/nlohmann/json/issues/1226)
- Lambda in unevaluated context [\#1225](https://github.com/nlohmann/json/issues/1225)
- NLohmann doesn't compile when enabling strict warning policies [\#1224](https://github.com/nlohmann/json/issues/1224)
- Creating array of objects [\#1223](https://github.com/nlohmann/json/issues/1223)
- Somewhat unhelpful error message "cannot use operator\[\] with object" [\#1220](https://github.com/nlohmann/json/issues/1220)
- single\_include json.hpp [\#1218](https://github.com/nlohmann/json/issues/1218)
- Maps with enum class keys which are convertible to JSON strings should be converted to JSON dictionaries [\#1217](https://github.com/nlohmann/json/issues/1217)
- Adding JSON Array to the Array [\#1216](https://github.com/nlohmann/json/issues/1216)
- Best way to output a vector of a given type to json [\#1215](https://github.com/nlohmann/json/issues/1215)
- compiler warning: double definition of macro JSON\_INTERNAL\_CATCH [\#1213](https://github.com/nlohmann/json/issues/1213)
- Compilation error when using MOCK\_METHOD1 from GMock and nlohmann::json [\#1212](https://github.com/nlohmann/json/issues/1212)
- Issues parsing a previously encoded binary \(non-UTF8\) string. [\#1211](https://github.com/nlohmann/json/issues/1211)
- Yet another ordering question: char \* and parse\(\) [\#1209](https://github.com/nlohmann/json/issues/1209)
- Error using gcc 8.1.0 on Ubuntu 14.04 [\#1207](https://github.com/nlohmann/json/issues/1207)
- "type must be string, but is " std::string\(j.type\_name\(\) [\#1206](https://github.com/nlohmann/json/issues/1206)
- Returning empty json object from a function of type const json& ? [\#1205](https://github.com/nlohmann/json/issues/1205)
- VS2017 compiler suggests using constexpr if [\#1204](https://github.com/nlohmann/json/issues/1204)
- Template instatiation error on compiling [\#1203](https://github.com/nlohmann/json/issues/1203)
- BUG - json dump field with unicode -\> array of ints \(instead of string\) [\#1197](https://github.com/nlohmann/json/issues/1197)
- Compile error using Code::Blocks // mingw-w64 GCC 8.1.0 - "Incomplete Type" [\#1193](https://github.com/nlohmann/json/issues/1193)
- SEGFAULT on arm target [\#1190](https://github.com/nlohmann/json/issues/1190)
- Compiler crash with old Clang [\#1179](https://github.com/nlohmann/json/issues/1179)
- Custom Precision on floating point numbers [\#1170](https://github.com/nlohmann/json/issues/1170)
- Can we have a json\_view class like std::string\_view? [\#1158](https://github.com/nlohmann/json/issues/1158)
- improve error handling [\#1152](https://github.com/nlohmann/json/issues/1152)
- We should remove static\_asserts [\#960](https://github.com/nlohmann/json/issues/960)
- Fix warning C4127: conditional expression is constant [\#1272](https://github.com/nlohmann/json/pull/1272) ([antonioborondo](https://github.com/antonioborondo))
- Turn off additional deprecation warnings for GCC. [\#1271](https://github.com/nlohmann/json/pull/1271) ([chuckatkins](https://github.com/chuckatkins))
- docs: Add additional CMake documentation [\#1270](https://github.com/nlohmann/json/pull/1270) ([chuckatkins](https://github.com/chuckatkins))
- unit-testsuites.cpp: fix hangup if file not found [\#1262](https://github.com/nlohmann/json/pull/1262) ([knilch0r](https://github.com/knilch0r))
- Fix broken cmake imported target alias [\#1260](https://github.com/nlohmann/json/pull/1260) ([chuckatkins](https://github.com/chuckatkins))
- GCC 48 [\#1257](https://github.com/nlohmann/json/pull/1257) ([henryiii](https://github.com/henryiii))
- Add version and license to meson.build [\#1252](https://github.com/nlohmann/json/pull/1252) ([koponomarenko](https://github.com/koponomarenko))
- \#1179 Reordered the code. It seems to stop clang 3.4.2 in RHEL 7 from crash… [\#1249](https://github.com/nlohmann/json/pull/1249) ([LEgregius](https://github.com/LEgregius))
- Use a version check to provide backwards comatible CMake imported target names [\#1245](https://github.com/nlohmann/json/pull/1245) ([chuckatkins](https://github.com/chuckatkins))
- Fix issue \#1237 [\#1238](https://github.com/nlohmann/json/pull/1238) ([theodelrieu](https://github.com/theodelrieu))
- Add a get overload taking a parameter. [\#1231](https://github.com/nlohmann/json/pull/1231) ([theodelrieu](https://github.com/theodelrieu))
- Move lambda out of unevaluated context [\#1230](https://github.com/nlohmann/json/pull/1230) ([mandreyel](https://github.com/mandreyel))
- Remove static asserts [\#1228](https://github.com/nlohmann/json/pull/1228) ([theodelrieu](https://github.com/theodelrieu))
- Better error 305 [\#1221](https://github.com/nlohmann/json/pull/1221) ([rivertam](https://github.com/rivertam))
- Fix \#1213 [\#1214](https://github.com/nlohmann/json/pull/1214) ([simnalamburt](https://github.com/simnalamburt))
- Export package to allow builds without installing [\#1202](https://github.com/nlohmann/json/pull/1202) ([dennisfischer](https://github.com/dennisfischer))
## [v3.2.0](https://github.com/nlohmann/json/releases/tag/v3.2.0) (2018-08-20)
[Full Changelog](https://github.com/nlohmann/json/compare/v3.1.2...v3.2.0)
- Am I doing this wrong? Getting an empty string [\#1199](https://github.com/nlohmann/json/issues/1199)
- Incompatible Pointer Type [\#1196](https://github.com/nlohmann/json/issues/1196)
- json.exception.type\_error.316 [\#1195](https://github.com/nlohmann/json/issues/1195)
- Strange warnings in Code::Blocks 17.12, GNU GCC [\#1192](https://github.com/nlohmann/json/issues/1192)
- \[Question\] Current place in code to change floating point resolution [\#1191](https://github.com/nlohmann/json/issues/1191)
- Add key name when throwing type error [\#1189](https://github.com/nlohmann/json/issues/1189)
- Not able to include in visual studio code? [\#1188](https://github.com/nlohmann/json/issues/1188)
- Get an Index or row number of an element [\#1186](https://github.com/nlohmann/json/issues/1186)
- reduce repos size [\#1185](https://github.com/nlohmann/json/issues/1185)
- Difference between `merge\_patch` and `update` [\#1183](https://github.com/nlohmann/json/issues/1183)
- Is there a way to get an element from a JSON without throwing an exception on failure? [\#1182](https://github.com/nlohmann/json/issues/1182)
- to\_string? [\#1181](https://github.com/nlohmann/json/issues/1181)
- How to cache a json object's pointer into a map? [\#1180](https://github.com/nlohmann/json/issues/1180)
- Can this library work within a Qt project for Android using Qt Creator? [\#1178](https://github.com/nlohmann/json/issues/1178)
- How to get all keys of one object? [\#1177](https://github.com/nlohmann/json/issues/1177)
- How can I only parse the first level and get the value as string? [\#1175](https://github.com/nlohmann/json/issues/1175)
- I have a query regarding nlohmann::basic\_json::basic\_json [\#1174](https://github.com/nlohmann/json/issues/1174)
- unordered\_map with vectors won't convert to json? [\#1173](https://github.com/nlohmann/json/issues/1173)
- return json objects from functions [\#1172](https://github.com/nlohmann/json/issues/1172)
- Problem when exporting to CBOR [\#1171](https://github.com/nlohmann/json/issues/1171)
- Roundtripping null to nullptr does not work [\#1169](https://github.com/nlohmann/json/issues/1169)
- MSVC fails to compile std::swap specialization for nlohmann::json [\#1168](https://github.com/nlohmann/json/issues/1168)
- Unexpected behaviour of is\_null - Part II [\#1167](https://github.com/nlohmann/json/issues/1167)
- Floating point imprecision [\#1166](https://github.com/nlohmann/json/issues/1166)
- Combine json objects into one? [\#1165](https://github.com/nlohmann/json/issues/1165)
- Is there any way to know if the object has changed? [\#1164](https://github.com/nlohmann/json/issues/1164)
- Value throws on null string [\#1163](https://github.com/nlohmann/json/issues/1163)
- Weird template issue in large project [\#1162](https://github.com/nlohmann/json/issues/1162)
- \_json returns a different result vs ::parse [\#1161](https://github.com/nlohmann/json/issues/1161)
- Showing difference between two json objects [\#1160](https://github.com/nlohmann/json/issues/1160)
- no instance of overloaded function "std::swap" matches the specified type [\#1159](https://github.com/nlohmann/json/issues/1159)
- resize\(...\)? [\#1157](https://github.com/nlohmann/json/issues/1157)
- Issue with struct nested in class' to\_json [\#1155](https://github.com/nlohmann/json/issues/1155)
- Deserialize std::map with std::nan [\#1154](https://github.com/nlohmann/json/issues/1154)
- Parse throwing errors [\#1149](https://github.com/nlohmann/json/issues/1149)
- cocoapod integration [\#1148](https://github.com/nlohmann/json/issues/1148)
- wstring parsing [\#1147](https://github.com/nlohmann/json/issues/1147)
- Is it possible to dump a two-dimensional array to "\[\[null\],\[1,2,3\]\]"? [\#1146](https://github.com/nlohmann/json/issues/1146)
- Want to write a class member variable and a struct variable \( this structure is inside the class\) to the json file [\#1145](https://github.com/nlohmann/json/issues/1145)
- Does json support converting an instance of a struct into json string? [\#1143](https://github.com/nlohmann/json/issues/1143)
- \#Most efficient way to search for child parameters \(recursive find?\) [\#1141](https://github.com/nlohmann/json/issues/1141)
- could not find to\_json\(\) method in T's namespace [\#1140](https://github.com/nlohmann/json/issues/1140)
- chars get treated as JSON numbers not JSON strings [\#1139](https://github.com/nlohmann/json/issues/1139)
- How do I count number of objects in array? [\#1137](https://github.com/nlohmann/json/issues/1137)
- Serializing a vector of classes? [\#1136](https://github.com/nlohmann/json/issues/1136)
- Compile error. Unable convert form nullptr to nullptr&& [\#1135](https://github.com/nlohmann/json/issues/1135)
- std::unordered\_map in struct, serialization [\#1133](https://github.com/nlohmann/json/issues/1133)
- dump\(\) can't handle umlauts [\#1131](https://github.com/nlohmann/json/issues/1131)
- Add a way to get a key reference from the iterator [\#1127](https://github.com/nlohmann/json/issues/1127)
- can't not parse "\\“ string [\#1123](https://github.com/nlohmann/json/issues/1123)
- if json file contain Internationalization chars , get exception [\#1122](https://github.com/nlohmann/json/issues/1122)
- How to use a json::iterator dereferenced value in code? [\#1120](https://github.com/nlohmann/json/issues/1120)
- clang compiler: error : unknown type name 'not' [\#1119](https://github.com/nlohmann/json/issues/1119)
- Disable implicit conversions from json to std::initializer\_list\<T\> for any T [\#1118](https://github.com/nlohmann/json/issues/1118)
- Implicit conversions to complex types can lead to surprising and confusing errors [\#1116](https://github.com/nlohmann/json/issues/1116)
- How can I write from\_json for a complex datatype that is not default constructible? [\#1115](https://github.com/nlohmann/json/issues/1115)
- Compile error in VS2015 when compiling unit-conversions.cpp [\#1114](https://github.com/nlohmann/json/issues/1114)
- ADL Serializer for std::any / boost::any [\#1113](https://github.com/nlohmann/json/issues/1113)
- Unexpected behaviour of is\_null [\#1112](https://github.com/nlohmann/json/issues/1112)
- How to resolve " undefined reference to `std::\_\_throw\_bad\_cast\(\)'" [\#1111](https://github.com/nlohmann/json/issues/1111)
- cannot compile on ubuntu 18.04 and 16.04 [\#1110](https://github.com/nlohmann/json/issues/1110)
- JSON representation for floating point values has too many digits [\#1109](https://github.com/nlohmann/json/issues/1109)
- Not working for classes containing "\_declspec\(dllimport\)" in their declaration [\#1108](https://github.com/nlohmann/json/issues/1108)
- Get keys from json object [\#1107](https://github.com/nlohmann/json/issues/1107)
- dump\(\) without alphabetical order [\#1106](https://github.com/nlohmann/json/issues/1106)
- Cannot deserialize types using std::ratio [\#1105](https://github.com/nlohmann/json/issues/1105)
- i want to learn json [\#1104](https://github.com/nlohmann/json/issues/1104)
- Type checking during compile [\#1103](https://github.com/nlohmann/json/issues/1103)
- Iterate through sub items [\#1102](https://github.com/nlohmann/json/issues/1102)
- cppcheck failing for version 3.1.2 [\#1101](https://github.com/nlohmann/json/issues/1101)
- Deserializing std::map [\#1100](https://github.com/nlohmann/json/issues/1100)
- accessing key by reference [\#1098](https://github.com/nlohmann/json/issues/1098)
- clang 3.8.0 croaks while trying to compile with debug symbols [\#1097](https://github.com/nlohmann/json/issues/1097)
- Serialize a list of class objects with json [\#1096](https://github.com/nlohmann/json/issues/1096)
- Null bytes in files are treated like EOF [\#1095](https://github.com/nlohmann/json/issues/1095)
- Small question [\#1094](https://github.com/nlohmann/json/issues/1094)
- Upgrading to 3.x: to\_/from\_json with enum class [\#1093](https://github.com/nlohmann/json/issues/1093)
- Q: few questions about json construction [\#1092](https://github.com/nlohmann/json/issues/1092)
- general crayCC compilation failure [\#1091](https://github.com/nlohmann/json/issues/1091)
- Merge Patch clears original data [\#1090](https://github.com/nlohmann/json/issues/1090)
- \[Question\] how to use nlohmann/json in c++? [\#1088](https://github.com/nlohmann/json/issues/1088)
- C++17 decomposition declaration support [\#1087](https://github.com/nlohmann/json/issues/1087)
- \[Question\] Access multi-level json objects [\#1086](https://github.com/nlohmann/json/issues/1086)
- Serializing vector [\#1085](https://github.com/nlohmann/json/issues/1085)
- update nested value in multi hierarchy json object [\#1084](https://github.com/nlohmann/json/issues/1084)
- Overriding default values? [\#1083](https://github.com/nlohmann/json/issues/1083)
- detail namespace collision with Cereal? [\#1082](https://github.com/nlohmann/json/issues/1082)
- Error using json.dump\(\); [\#1081](https://github.com/nlohmann/json/issues/1081)
- Consuming TCP Stream [\#1080](https://github.com/nlohmann/json/issues/1080)
- Compilation error with strong typed enums in map in combination with namespaces [\#1079](https://github.com/nlohmann/json/issues/1079)
- cassert error [\#1076](https://github.com/nlohmann/json/issues/1076)
- Valid json data not being parsed [\#1075](https://github.com/nlohmann/json/issues/1075)
- Feature request :: Better testing for key existance without try/catch [\#1074](https://github.com/nlohmann/json/issues/1074)
- Hi, I have input like a.b.c and want to convert it to \"a\"{\"b\": \"c\"} form. Any suggestions how do I do this? Thanks. [\#1073](https://github.com/nlohmann/json/issues/1073)
- ADL deserializer not picked up for non default-constructible type [\#1072](https://github.com/nlohmann/json/issues/1072)
- Deserializing std::array doesn't compiler \(no insert\(\)\) [\#1071](https://github.com/nlohmann/json/issues/1071)
- Serializing OpenCV Mat problem [\#1070](https://github.com/nlohmann/json/issues/1070)
- Compilation error with ICPC compiler [\#1068](https://github.com/nlohmann/json/issues/1068)
- Minimal branch? [\#1066](https://github.com/nlohmann/json/issues/1066)
- Not existing value, crash [\#1065](https://github.com/nlohmann/json/issues/1065)
- cyryllic symbols [\#1064](https://github.com/nlohmann/json/issues/1064)
- newbie usage question [\#1063](https://github.com/nlohmann/json/issues/1063)
- Trying j\["strTest"\] = "%A" produces "strTest": "-0X1.CCCCCCCCCCCCCP+205" [\#1062](https://github.com/nlohmann/json/issues/1062)
- convert json value to std::string??? [\#1061](https://github.com/nlohmann/json/issues/1061)
- Commented out test cases, should they be removed? [\#1060](https://github.com/nlohmann/json/issues/1060)
- different behaviour between clang and gcc with braced initialization [\#1059](https://github.com/nlohmann/json/issues/1059)
- json array: initialize with prescribed size and `resize` method. [\#1057](https://github.com/nlohmann/json/issues/1057)
- Is it possible to use exceptions istead of assertions? [\#1056](https://github.com/nlohmann/json/issues/1056)
- when using assign operator in with json object a static assertion fails.. [\#1055](https://github.com/nlohmann/json/issues/1055)
- Iterate over leafs of a JSON data structure: enrich the JSON pointer API [\#1054](https://github.com/nlohmann/json/issues/1054)
- \[Feature request\] Access by path [\#1053](https://github.com/nlohmann/json/issues/1053)
- document that implicit js -\> primitive conversion does not work for std::string::value\_type and why [\#1052](https://github.com/nlohmann/json/issues/1052)
- error: BasicJsonType in namespace :: does not name a type [\#1051](https://github.com/nlohmann/json/issues/1051)
- Destructor is called when filling object through assignement [\#1050](https://github.com/nlohmann/json/issues/1050)
- Is this thing thread safe for reads? [\#1049](https://github.com/nlohmann/json/issues/1049)
- clang-tidy: Call to virtual function during construction [\#1046](https://github.com/nlohmann/json/issues/1046)
- Using STL algorithms with JSON containers with expected results? [\#1045](https://github.com/nlohmann/json/issues/1045)
- Usage with gtest/gmock not working as expected [\#1044](https://github.com/nlohmann/json/issues/1044)
- Consequences of from\_json / to\_json being in namespace of data struct. [\#1042](https://github.com/nlohmann/json/issues/1042)
- const\_reference operator\[\]\(const typename object\_t::key\_type& key\) const throw instead of assert [\#1039](https://github.com/nlohmann/json/issues/1039)
- Trying to retrieve data from nested objects [\#1038](https://github.com/nlohmann/json/issues/1038)
- Direct download link for json\_fwd.hpp? [\#1037](https://github.com/nlohmann/json/issues/1037)
- I know the library supports UTF-8, but failed to dump the value [\#1036](https://github.com/nlohmann/json/issues/1036)
- Putting a Vec3-like vector into a json object [\#1035](https://github.com/nlohmann/json/issues/1035)
- Ternary operator crash [\#1034](https://github.com/nlohmann/json/issues/1034)
- Issued with Clion Inspection Resolution since 2018.1 [\#1033](https://github.com/nlohmann/json/issues/1033)
- Some testcases fail and one never finishes [\#1032](https://github.com/nlohmann/json/issues/1032)
- Can this class work with wchar\_t / std::wstring? [\#1031](https://github.com/nlohmann/json/issues/1031)
- Makefile: Valgrind flags have no effect [\#1030](https://github.com/nlohmann/json/issues/1030)
- 「==」 Should be 「\>」 [\#1029](https://github.com/nlohmann/json/issues/1029)
- HOCON reader? [\#1027](https://github.com/nlohmann/json/issues/1027)
- add json string in previous string?? [\#1025](https://github.com/nlohmann/json/issues/1025)
- RFC: fluent parsing interface [\#1023](https://github.com/nlohmann/json/issues/1023)
- Does it support chinese character? [\#1022](https://github.com/nlohmann/json/issues/1022)
- to/from\_msgpack only works with standard typization [\#1021](https://github.com/nlohmann/json/issues/1021)
- Build failure using latest clang and GCC compilers [\#1020](https://github.com/nlohmann/json/issues/1020)
- can two json objects be concatenated? [\#1019](https://github.com/nlohmann/json/issues/1019)
- Erase by integer index [\#1018](https://github.com/nlohmann/json/issues/1018)
- Function find overload taking a json\_pointer [\#1017](https://github.com/nlohmann/json/issues/1017)
- I think should implement an parser function [\#1016](https://github.com/nlohmann/json/issues/1016)
- Readme gif [\#1015](https://github.com/nlohmann/json/issues/1015)
- Python bindings [\#1014](https://github.com/nlohmann/json/issues/1014)
- how to add two json string in single object?? [\#1012](https://github.com/nlohmann/json/issues/1012)
- how to serialize class Object \(convert data in object into json\)?? [\#1011](https://github.com/nlohmann/json/issues/1011)
- Enable forward declaration of json by making json a class instead of a using declaration [\#997](https://github.com/nlohmann/json/issues/997)
- compilation error while using intel c++ compiler 2018 [\#994](https://github.com/nlohmann/json/issues/994)
- How to create a json variable? [\#990](https://github.com/nlohmann/json/issues/990)
- istream \>\> json --- 1st character skipped in stream [\#976](https://github.com/nlohmann/json/issues/976)
- Add a SAX parser [\#971](https://github.com/nlohmann/json/issues/971)
- Add Key name to Exception [\#932](https://github.com/nlohmann/json/issues/932)
- How to solve large json file? [\#927](https://github.com/nlohmann/json/issues/927)
- json\_pointer public push\_back, pop\_back [\#837](https://github.com/nlohmann/json/issues/837)
- Using input\_adapter in a slightly unexpected way [\#834](https://github.com/nlohmann/json/issues/834)
- Stack-overflow \(OSS-Fuzz 4234\) [\#832](https://github.com/nlohmann/json/issues/832)
- Fix -Wno-sometimes-uninitialized by initializing "result" in parse\_sax [\#1200](https://github.com/nlohmann/json/pull/1200) ([thyu](https://github.com/thyu))
- \[RFC\] Introduce a new macro function: JSON\_INTERNAL\_CATCH [\#1187](https://github.com/nlohmann/json/pull/1187) ([simnalamburt](https://github.com/simnalamburt))
- Fix unit tests that were silently skipped or crashed \(depending on the compiler\) [\#1176](https://github.com/nlohmann/json/pull/1176) ([grembo](https://github.com/grembo))
- Refactor/no virtual sax [\#1153](https://github.com/nlohmann/json/pull/1153) ([theodelrieu](https://github.com/theodelrieu))
- Fixed compiler error in VS 2015 for debug mode [\#1151](https://github.com/nlohmann/json/pull/1151) ([sonulohani](https://github.com/sonulohani))
- Fix links to cppreference named requirements \(formerly concepts\) [\#1144](https://github.com/nlohmann/json/pull/1144) ([jrakow](https://github.com/jrakow))
- meson: fix include directory [\#1142](https://github.com/nlohmann/json/pull/1142) ([jrakow](https://github.com/jrakow))
- Feature/unordered map conversion [\#1138](https://github.com/nlohmann/json/pull/1138) ([theodelrieu](https://github.com/theodelrieu))
- fixed compile error for \#1045 [\#1134](https://github.com/nlohmann/json/pull/1134) ([Daniel599](https://github.com/Daniel599))
- test \(non\)equality for alt\_string implementation [\#1130](https://github.com/nlohmann/json/pull/1130) ([agrianius](https://github.com/agrianius))
- remove stringstream dependency [\#1117](https://github.com/nlohmann/json/pull/1117) ([TinyTinni](https://github.com/TinyTinni))
- Provide a from\_json overload for std::map [\#1089](https://github.com/nlohmann/json/pull/1089) ([theodelrieu](https://github.com/theodelrieu))
- fix typo in README [\#1078](https://github.com/nlohmann/json/pull/1078) ([martin-mfg](https://github.com/martin-mfg))
- Fix typo [\#1058](https://github.com/nlohmann/json/pull/1058) ([dns13](https://github.com/dns13))
- Misc cmake packaging enhancements [\#1048](https://github.com/nlohmann/json/pull/1048) ([chuckatkins](https://github.com/chuckatkins))
- Fixed incorrect LLVM version number in README [\#1047](https://github.com/nlohmann/json/pull/1047) ([jammehcow](https://github.com/jammehcow))
- Fix trivial typo in comment. [\#1043](https://github.com/nlohmann/json/pull/1043) ([coryan](https://github.com/coryan))
- Package Manager: Spack [\#1041](https://github.com/nlohmann/json/pull/1041) ([ax3l](https://github.com/ax3l))
- CMake: 3.8+ is Sufficient [\#1040](https://github.com/nlohmann/json/pull/1040) ([ax3l](https://github.com/ax3l))
- Added support for string\_view in C++17 [\#1028](https://github.com/nlohmann/json/pull/1028) ([gracicot](https://github.com/gracicot))
- Added public target\_compile\_features for auto and constexpr [\#1026](https://github.com/nlohmann/json/pull/1026) ([ktonon](https://github.com/ktonon))
## [v3.1.2](https://github.com/nlohmann/json/releases/tag/v3.1.2) (2018-03-14)
[Full Changelog](https://github.com/nlohmann/json/compare/v3.1.1...v3.1.2)
@@ -314,6 +16,7 @@ All notable changes to this project will be documented in this file. This projec
- get\<T\> for types that are not default constructible [\#996](https://github.com/nlohmann/json/issues/996)
- Prevent Null values to appear in .dump\(\) [\#995](https://github.com/nlohmann/json/issues/995)
- number parsing [\#993](https://github.com/nlohmann/json/issues/993)
- How to create a json variable? [\#990](https://github.com/nlohmann/json/issues/990)
- C2664 \(C++/CLR\) cannot convert 'nullptr' to 'nullptr &&' [\#987](https://github.com/nlohmann/json/issues/987)
- Uniform initialization from another json object differs between gcc and clang. [\#985](https://github.com/nlohmann/json/issues/985)
- Problem with adding the lib as a submodule [\#983](https://github.com/nlohmann/json/issues/983)
@@ -1082,6 +785,7 @@ All notable changes to this project will be documented in this file. This projec
- json::diff generates incorrect patch when removing multiple array elements. [\#269](https://github.com/nlohmann/json/issues/269)
- Docs - What does Json\[key\] return? [\#267](https://github.com/nlohmann/json/issues/267)
- Compiler Errors With JSON.hpp [\#265](https://github.com/nlohmann/json/issues/265)
- Throw exception instead of crashing my app [\#264](https://github.com/nlohmann/json/issues/264)
- Ambiguous push\_back and operator+= overloads [\#263](https://github.com/nlohmann/json/issues/263)
- Preseving order of items in json [\#262](https://github.com/nlohmann/json/issues/262)
- '\' char problem in strings [\#261](https://github.com/nlohmann/json/issues/261)

View File

@@ -9,10 +9,8 @@ SRCS = include/nlohmann/json.hpp \
include/nlohmann/detail/exceptions.hpp \
include/nlohmann/detail/input/binary_reader.hpp \
include/nlohmann/detail/input/input_adapters.hpp \
include/nlohmann/detail/input/json_sax.hpp \
include/nlohmann/detail/input/lexer.hpp \
include/nlohmann/detail/input/parser.hpp \
include/nlohmann/detail/input/position_t.hpp \
include/nlohmann/detail/iterators/internal_iterator.hpp \
include/nlohmann/detail/iterators/iter_impl.hpp \
include/nlohmann/detail/iterators/iteration_proxy.hpp \
@@ -22,10 +20,7 @@ SRCS = include/nlohmann/json.hpp \
include/nlohmann/detail/json_ref.hpp \
include/nlohmann/detail/macro_scope.hpp \
include/nlohmann/detail/macro_unscope.hpp \
include/nlohmann/detail/meta/cpp_future.hpp \
include/nlohmann/detail/meta/detected.hpp \
include/nlohmann/detail/meta/type_traits.hpp \
include/nlohmann/detail/meta/void_t.hpp \
include/nlohmann/detail/meta.hpp \
include/nlohmann/detail/output/binary_writer.hpp \
include/nlohmann/detail/output/output_adapters.hpp \
include/nlohmann/detail/output/serializer.hpp \
@@ -48,7 +43,6 @@ all:
@echo "cppcheck - analyze code with cppcheck"
@echo "doctest - compile example files and check their output"
@echo "fuzz_testing - prepare fuzz testing of the JSON parser"
@echo "fuzz_testing_bson - prepare fuzz testing of the BSON parser"
@echo "fuzz_testing_cbor - prepare fuzz testing of the CBOR parser"
@echo "fuzz_testing_msgpack - prepare fuzz testing of the MessagePack parser"
@echo "fuzz_testing_ubjson - prepare fuzz testing of the UBJSON parser"
@@ -88,9 +82,9 @@ clean:
coverage:
mkdir build_coverage
cd build_coverage ; CXX=g++-7 cmake .. -GNinja -DJSON_Coverage=ON -DJSON_MultipleHeaders=ON
cd build_coverage ; CXX=g++-5 cmake .. -GNinja -DJSON_Coverage=ON -DJSON_MultipleHeaders=ON
cd build_coverage ; ninja
cd build_coverage ; ctest -E '.*_default' -j10
cd build_coverage ; ctest -j10
cd build_coverage ; ninja lcov_html
open build_coverage/test/html/index.html
@@ -193,10 +187,7 @@ pedantic_gcc:
-Wunused-macros \
-Wunused-parameter \
-Wuseless-cast \
-Wvariadic-macros \
-Wctor-dtor-privacy \
-Winit-self \
-Wstrict-null-sentinel"
-Wvariadic-macros"
##########################################################################
# benchmarks
@@ -221,14 +212,6 @@ fuzz_testing:
find test/data/json_tests -size -5k -name *json | xargs -I{} cp "{}" fuzz-testing/testcases
@echo "Execute: afl-fuzz -i fuzz-testing/testcases -o fuzz-testing/out fuzz-testing/fuzzer"
fuzz_testing_bson:
rm -fr fuzz-testing
mkdir -p fuzz-testing fuzz-testing/testcases fuzz-testing/out
$(MAKE) parse_bson_fuzzer -C test CXX=afl-clang++
mv test/parse_bson_fuzzer fuzz-testing/fuzzer
find test/data -size -5k -name *.bson | xargs -I{} cp "{}" fuzz-testing/testcases
@echo "Execute: afl-fuzz -i fuzz-testing/testcases -o fuzz-testing/out fuzz-testing/fuzzer"
fuzz_testing_cbor:
rm -fr fuzz-testing
mkdir -p fuzz-testing fuzz-testing/testcases fuzz-testing/out

314
README.md
View File

@@ -5,7 +5,6 @@
[![Coverage Status](https://img.shields.io/coveralls/nlohmann/json.svg)](https://coveralls.io/r/nlohmann/json)
[![Coverity Scan Build Status](https://scan.coverity.com/projects/5550/badge.svg)](https://scan.coverity.com/projects/nlohmann-json)
[![Codacy Badge](https://api.codacy.com/project/badge/Grade/f3732b3327e34358a0e9d1fe9f661f08)](https://www.codacy.com/app/nlohmann/json?utm_source=github.com&amp;utm_medium=referral&amp;utm_content=nlohmann/json&amp;utm_campaign=Badge_Grade)
[![Language grade: C/C++](https://img.shields.io/lgtm/grade/cpp/g/nlohmann/json.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/nlohmann/json/context:cpp)
[![Try online](https://img.shields.io/badge/try-online-blue.svg)](https://wandbox.org/permlink/TarF5pPn9NtHQjhf)
[![Documentation](https://img.shields.io/badge/docs-doxygen-blue.svg)](http://nlohmann.github.io/json)
[![GitHub license](https://img.shields.io/badge/license-MIT-blue.svg)](https://raw.githubusercontent.com/nlohmann/json/master/LICENSE.MIT)
@@ -16,8 +15,6 @@
- [Design goals](#design-goals)
- [Integration](#integration)
- [CMake](#cmake)
- [Package Managers](#package-managers)
- [Examples](#examples)
- [JSON as first-class data type](#json-as-first-class-data-type)
- [Serialization / Deserialization](#serialization--deserialization)
@@ -27,8 +24,7 @@
- [JSON Merge Patch](#json-merge-patch)
- [Implicit conversions](#implicit-conversions)
- [Conversions to/from arbitrary types](#arbitrary-types-conversions)
- [Specializing enum conversion](#specializing-enum-conversion)
- [Binary formats (BSON, CBOR, MessagePack, and UBJSON)](#binary-formats-bson-cbor-messagepack-and-ubjson)
- [Binary formats (CBOR, MessagePack, and UBJSON)](#binary-formats-cbor-messagepack-and-ubjson)
- [Supported compilers](#supported-compilers)
- [License](#license)
- [Contact](#contact)
@@ -72,81 +68,14 @@ to the files you want to process JSON and set the necessary switches to enable C
You can further use file [`include/nlohmann/json_fwd.hpp`](https://github.com/nlohmann/json/blob/develop/include/nlohmann/json_fwd.hpp) for forward-declarations. The installation of json_fwd.hpp (as part of cmake's install step), can be achieved by setting `-DJSON_MultipleHeaders=ON`.
### CMake
You can also use the `nlohmann_json::nlohmann_json` interface target in CMake. This target populates the appropriate usage requirements for `INTERFACE_INCLUDE_DIRECTORIES` to point to the appropriate include directories and `INTERFACE_COMPILE_FEATURES` for the necessary C++11 flags.
#### External
To use this library from a CMake project, you can locate it directly with `find_package()` and use the namespaced imported target from the generated package configuration:
```cmake
# CMakeLists.txt
find_package(nlohmann_json 3.2.0 REQUIRED)
...
add_library(foo ...)
...
target_link_libraries(foo PRIVATE nlohmann_json::nlohmann_json)
```
The package configuration file, `nlohmann_jsonConfig.cmake`, can be used either from an install tree or directly out of the build tree.
#### Embedded
To embed the library directly into an existing CMake project, place the entire source tree in a subdirectory and call `add_subdirectory()` in your `CMakeLists.txt` file:
```cmake
# Typically you don't care so much for a third party library's tests to be
# run from your own project's code.
set(JSON_BuildTests OFF CACHE INTERNAL "")
# Don't use include(nlohmann_json/CMakeLists.txt) since that carries with it
# inintended consequences that will break the build. It's generally
# discouraged (although not necessarily well documented as such) to use
# include(...) for pulling in other CMake projects anyways.
add_subdirectory(nlohmann_json)
...
add_library(foo ...)
...
target_link_libraries(foo PRIVATE nlohmann_json::nlohmann_json)
```
#### Supporting Both
To allow your project to support either an externally supplied or an embedded JSON library, you can use a pattern akin to the following:
``` cmake
# Top level CMakeLists.txt
project(FOO)
...
option(FOO_USE_EXTERNAL_JSON "Use an external JSON library" OFF)
...
add_subdirectory(thirdparty)
...
add_library(foo ...)
...
# Note that the namespaced target will always be available regardless of the
# import method
target_link_libraries(foo PRIVATE nlohmann_json::nlohmann_json)
```
```cmake
# thirdparty/CMakeLists.txt
...
if(FOO_USE_EXTERNAL_JSON)
find_package(nlohmann_json 3.2.0 REQUIRED)
else()
set(JSON_BuildTests OFF CACHE INTERNAL "")
add_subdirectory(nlohmann_json)
endif()
...
```
`thirdparty/nlohmann_json` is then a complete copy of this source tree.
### Package Managers
:beer: If you are using OS X and [Homebrew](http://brew.sh), just type `brew tap nlohmann/json` and `brew install nlohmann_json` and you're set. If you want the bleeding edge rather than the latest release, use `brew install nlohmann_json --HEAD`.
If you are using the [Meson Build System](http://mesonbuild.com), then you can get a wrap file by downloading it from [Meson WrapDB](https://wrapdb.mesonbuild.com/nlohmann_json), or simply use `meson wrap install nlohmann_json`.
If you are using the [Meson Build System](http://mesonbuild.com), then you can wrap this repository as a subproject.
If you are using [Conan](https://www.conan.io/) to manage your dependencies, merely add `jsonformoderncpp/x.y.z@vthiery/stable` to your `conanfile.py`'s requires, where `x.y.z` is the release version you want to use. Please file issues [here](https://github.com/vthiery/conan-jsonformoderncpp/issues) if you experience problems with the packages.
If you are using [Spack](https://www.spack.io/) to manage your dependencies, you can use the `nlohmann_json` package. Please see the [spack project](https://github.com/spack/spack) for any issues regarding the packaging.
If you are using [hunter](https://github.com/ruslo/hunter/) on your project for external dependencies, then you can use the [nlohmann_json package](https://docs.hunter.sh/en/latest/packages/pkg/nlohmann_json.html). Please see the hunter project for any issues regarding the packaging.
If you are using [Buckaroo](https://buckaroo.pm), you can install this library's module with `buckaroo install nlohmann/json`. Please file issues [here](https://github.com/LoopPerfect/buckaroo-recipes/issues/new?title=nlohmann/nlohmann/json).
@@ -155,8 +84,6 @@ If you are using [vcpkg](https://github.com/Microsoft/vcpkg/) on your project fo
If you are using [cget](http://cget.readthedocs.io/en/latest/), you can install the latest development version with `cget install nlohmann/json`. A specific version can be installed with `cget install nlohmann/json@v3.1.0`. Also, the multiple header version can be installed by adding the `-DJSON_MultipleHeaders=ON` flag (i.e., `cget install nlohmann/json -DJSON_MultipleHeaders=ON`).
If you are using [CocoaPods](https://cocoapods.org), you can use the library by adding pod `"nlohmann_json", '~>3.1.2'` to your podfile (see [an example](https://bitbucket.org/benman/nlohmann_json-cocoapod/src/master/)). Please file issues [here](https://bitbucket.org/benman/nlohmann_json-cocoapod/issues?status=new&status=open).
## Examples
Beside the examples below, you may want to check the [documentation](https://nlohmann.github.io/json/) where each function contains a separate code example (e.g., check out [`emplace()`](https://nlohmann.github.io/json/classnlohmann_1_1basic__json_a5338e282d1d02bed389d852dd670d98d.html#a5338e282d1d02bed389d852dd670d98d)). All [example files](https://github.com/nlohmann/json/tree/develop/doc/examples) can be compiled and executed on their own (e.g., file [emplace.cpp](https://github.com/nlohmann/json/blob/develop/doc/examples/emplace.cpp)).
@@ -242,6 +169,7 @@ json empty_object_explicit = json::object();
json array_not_object = json::array({ {"currency", "USD"}, {"value", 42.99} });
```
### Serialization / Deserialization
#### To/from strings
@@ -295,22 +223,18 @@ json j_string = "this is a string";
std::string cpp_string = j_string;
// retrieve the string value (explicit JSON to std::string conversion)
auto cpp_string2 = j_string.get<std::string>();
// retrieve the string value (alternative explicit JSON to std::string conversion)
std::string cpp_string3;
j_string.get_to(cpp_string3);
// retrieve the serialized value (explicit JSON serialization)
std::string serialized_string = j_string.dump();
// output of original string
std::cout << cpp_string << " == " << cpp_string2 << " == " << cpp_string3 << " == " << j_string.get<std::string>() << '\n';
std::cout << cpp_string << " == " << cpp_string2 << " == " << j_string.get<std::string>() << '\n';
// output of serialized value
std::cout << j_string << " == " << serialized_string << std::endl;
```
[`.dump()`](https://nlohmann.github.io/json/classnlohmann_1_1basic__json_a50ec80b02d0f3f51130d4abb5d1cfdc5.html#a50ec80b02d0f3f51130d4abb5d1cfdc5) always returns the serialized value, and [`.get<std::string>()`](https://nlohmann.github.io/json/classnlohmann_1_1basic__json_a16f9445f7629f634221a42b967cdcd43.html#a16f9445f7629f634221a42b967cdcd43) returns the originally stored string value.
[`.dump()`](https://nlohmann.github.io/json/classnlohmann_1_1basic__json_a5adea76fedba9898d404fef8598aa663.html#a5adea76fedba9898d404fef8598aa663) always returns the serialized value, and [`.get<std::string>()`](https://nlohmann.github.io/json/classnlohmann_1_1basic__json_a16f9445f7629f634221a42b967cdcd43.html#a16f9445f7629f634221a42b967cdcd43) returns the originally stored string value.
Note the library only supports UTF-8. When you store strings with different encodings in the library, calling [`dump()`](https://nlohmann.github.io/json/classnlohmann_1_1basic__json_a50ec80b02d0f3f51130d4abb5d1cfdc5.html#a50ec80b02d0f3f51130d4abb5d1cfdc5) may throw an exception unless `json::error_handler_t::replace` or `json::error_handler_t::ignore` are used as error handlers.
#### To/from streams (e.g. files, string streams)
@@ -359,53 +283,10 @@ std::vector<std::uint8_t> v = {'t', 'r', 'u', 'e'};
json j = json::parse(v);
```
#### SAX interface
The library uses a SAX-like interface with the following functions:
```cpp
// called when null is parsed
bool null();
// called when a boolean is parsed; value is passed
bool boolean(bool val);
// called when a signed or unsigned integer number is parsed; value is passed
bool number_integer(number_integer_t val);
bool number_unsigned(number_unsigned_t val);
// called when a floating-point number is parsed; value and original string is passed
bool number_float(number_float_t val, const string_t& s);
// called when a string is parsed; value is passed and can be safely moved away
bool string(string_t& val);
// called when an object or array begins or ends, resp. The number of elements is passed (or -1 if not known)
bool start_object(std::size_t elements);
bool end_object();
bool start_array(std::size_t elements);
bool end_array();
// called when an object key is parsed; value is passed and can be safely moved away
bool key(string_t& val);
// called when a parse error occurs; byte position, the last token, and an exception is passed
bool parse_error(std::size_t position, const std::string& last_token, const detail::exception& ex);
```
The return value of each function determines whether parsing should proceed.
To implement your own SAX handler, proceed as follows:
1. Implement the SAX interface in a class. You can use class `nlohmann::json_sax<json>` as base class, but you can also use any class where the functions described above are implemented and public.
2. Create an object of your SAX interface class, e.g. `my_sax`.
3. Call `bool json::sax_parse(input, &my_sax)`; where the first parameter can be any input like a string or an input stream and the second parameter is a pointer to your SAX interface.
Note the `sax_parse` function only returns a `bool` indicating the result of the last executed SAX event. It does not return a `json` value - it is up to you to decide what to do with the SAX events. Furthermore, no exceptions are thrown in case of a parse error - it is up to you what to do with the exception object passed to your `parse_error` implementation. Internally, the SAX interface is used for the DOM parser (class `json_sax_dom_parser`) as well as the acceptor (`json_sax_acceptor`), see file [`json_sax.hpp`](https://github.com/nlohmann/json/blob/develop/include/nlohmann/detail/input/json_sax.hpp).
### STL-like access
We designed the JSON class to behave just like an STL container. In fact, it satisfies the [**ReversibleContainer**](https://en.cppreference.com/w/cpp/named_req/ReversibleContainer) requirement.
We designed the JSON class to behave just like an STL container. In fact, it satisfies the [**ReversibleContainer**](http://en.cppreference.com/w/cpp/concept/ReversibleContainer) requirement.
```cpp
// create an array using push_back
@@ -642,14 +523,6 @@ int vi = jn.get<int>();
// etc.
```
Note that `char` types are not automatically converted to JSON strings, but to integer numbers. A conversion to a string must be specified explicitly:
```cpp
char ch = 'A'; // ASCII value 65
json j_default = ch; // stores integer number 65
json j_string = std::string(1, ch); // stores string "A"
```
### Arbitrary types conversions
Every type can be serialized in JSON, not just STL containers and scalar types. Usually, you would do something along those lines:
@@ -714,24 +587,24 @@ namespace ns {
}
void from_json(const json& j, person& p) {
j.at("name").get_to(p.name);
j.at("address").get_to(p.address);
j.at("age").get_to(p.age);
p.name = j.at("name").get<std::string>();
p.address = j.at("address").get<std::string>();
p.age = j.at("age").get<int>();
}
} // namespace ns
```
That's all! When calling the `json` constructor with your type, your custom `to_json` method will be automatically called.
Likewise, when calling `get<your_type>()` or `get_to(your_type&)`, the `from_json` method will be called.
Likewise, when calling `get<your_type>()`, the `from_json` method will be called.
Some important things:
* Those methods **MUST** be in your type's namespace (which can be the global namespace), or the library will not be able to locate them (in this example, they are in namespace `ns`, where `person` is defined).
* Those methods **MUST** be available (e.g., properly headers must be included) everywhere you use the implicit conversions. Look at [issue 1108](https://github.com/nlohmann/json/issues/1108) for errors that may occur otherwise.
* When using `get<your_type>()`, `your_type` **MUST** be [DefaultConstructible](https://en.cppreference.com/w/cpp/named_req/DefaultConstructible). (There is a way to bypass this requirement described later.)
* When using `get<your_type>()`, `your_type` **MUST** be [DefaultConstructible](http://en.cppreference.com/w/cpp/concept/DefaultConstructible). (There is a way to bypass this requirement described later.)
* In function `from_json`, use function [`at()`](https://nlohmann.github.io/json/classnlohmann_1_1basic__json_a93403e803947b86f4da2d1fb3345cf2c.html#a93403e803947b86f4da2d1fb3345cf2c) to access the object values rather than `operator[]`. In case a key does not exist, `at` throws an exception that you can handle, whereas `operator[]` exhibits undefined behavior.
* In case your type contains several `operator=` definitions, code like `your_variable = your_json;` [may not compile](https://github.com/nlohmann/json/issues/667). You need to write `your_variable = your_json.get<decltype(your_variable)>();` or `your_json.get_to(your_variable);` instead.
* In case your type contains several `operator=` definitions, code like `your_variable = your_json;` [may not compile](https://github.com/nlohmann/json/issues/667). You need to write `your_variable = your_json.get<decltype your_variable>();` instead.
* You do not need to add serializers or deserializers for STL types like `std::vector`: the library already implements these.
* Be careful with the definition order of the `from_json`/`to_json` functions: If a type `B` has a member of type `A`, you **MUST** define `to_json(A)` before `to_json(B)`. Look at [issue 561](https://github.com/nlohmann/json/issues/561) for more details.
#### How do I convert third-party types?
@@ -739,7 +612,7 @@ Some important things:
This requires a bit more advanced technique. But first, let's see how this conversion mechanism works:
The library uses **JSON Serializers** to convert types to json.
The default serializer for `nlohmann::json` is `nlohmann::adl_serializer` (ADL means [Argument-Dependent Lookup](https://en.cppreference.com/w/cpp/language/adl)).
The default serializer for `nlohmann::json` is `nlohmann::adl_serializer` (ADL means [Argument-Dependent Lookup](http://en.cppreference.com/w/cpp/language/adl)).
It is implemented like this (simplified):
@@ -788,7 +661,7 @@ namespace nlohmann {
#### How can I use `get()` for non-default constructible/non-copyable types?
There is a way, if your type is [MoveConstructible](https://en.cppreference.com/w/cpp/named_req/MoveConstructible). You will need to specialize the `adl_serializer` as well, but with a special `from_json` overload:
There is a way, if your type is [MoveConstructible](http://en.cppreference.com/w/cpp/concept/MoveConstructible). You will need to specialize the `adl_serializer` as well, but with a special `from_json` overload:
```cpp
struct move_only_type {
@@ -875,72 +748,14 @@ struct bad_serializer
};
```
### Specializing enum conversion
### Binary formats (CBOR, MessagePack, and UBJSON)
By default, enum values are serialized to JSON as integers. In some cases this could result in undesired behavior. If an enum is modified or re-ordered after data has been serialized to JSON, the later de-serialized JSON data may be undefined or a different enum value than was originally intended.
It is possible to more precisely specify how a given enum is mapped to and from JSON as shown below:
```cpp
// example enum type declaration
enum TaskState {
TS_STOPPED,
TS_RUNNING,
TS_COMPLETED,
TS_INVALID=-1,
};
// map TaskState values to JSON as strings
NLOHMANN_JSON_SERIALIZE_ENUM( TaskState, {
{TS_INVALID, nullptr},
{TS_STOPPED, "stopped"},
{TS_RUNNING, "running"},
{TS_COMPLETED, "completed"},
});
```
The `NLOHMANN_JSON_SERIALIZE_ENUM()` macro declares a set of `to_json()` / `from_json()` functions for type `TaskState` while avoiding repetition and boilerplate serilization code.
**Usage:**
```cpp
// enum to JSON as string
json j = TS_STOPPED;
assert(j == "stopped");
// json string to enum
json j3 = "running";
assert(j3.get<TaskState>() == TS_RUNNING);
// undefined json value to enum (where the first map entry above is the default)
json jPi = 3.14;
assert(jPi.get<TaskState>() == TS_INVALID );
```
Just as in [Arbitrary Type Conversions](#arbitrary-types-conversions) above,
- `NLOHMANN_JSON_SERIALIZE_ENUM()` MUST be declared in your enum type's namespace (which can be the global namespace), or the library will not be able to locate it and it will default to integer serialization.
- It MUST be available (e.g., proper headers must be included) everywhere you use the conversions.
Other Important points:
- When using `get<ENUM_TYPE>()`, undefined JSON values will default to the first pair specified in your map. Select this default pair carefully.
- If an enum or JSON value is specified more than once in your map, the first matching occurrence from the top of the map will be returned when converting to or from JSON.
### Binary formats (BSON, CBOR, MessagePack, and UBJSON
Though JSON is a ubiquitous data format, it is not a very compact format suitable for data exchange, for instance over a network. Hence, the library supports [BSON](http://bsonspec.org) (Binary JSON), [CBOR](http://cbor.io) (Concise Binary Object Representation), [MessagePack](http://msgpack.org), and [UBJSON](http://ubjson.org) (Universal Binary JSON Specification) to efficiently encode JSON values to byte vectors and to decode such vectors.
Though JSON is a ubiquitous data format, it is not a very compact format suitable for data exchange, for instance over a network. Hence, the library supports [CBOR](http://cbor.io) (Concise Binary Object Representation), [MessagePack](http://msgpack.org), and [UBJSON](http://ubjson.org) (Universal Binary JSON Specification) to efficiently encode JSON values to byte vectors and to decode such vectors.
```cpp
// create a JSON value
json j = R"({"compact": true, "schema": 0})"_json;
// serialize to BSON
std::vector<std::uint8_t> v_bson = json::to_bson(j);
// 0x1B, 0x00, 0x00, 0x00, 0x08, 0x63, 0x6F, 0x6D, 0x70, 0x61, 0x63, 0x74, 0x00, 0x01, 0x10, 0x73, 0x63, 0x68, 0x65, 0x6D, 0x61, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
// roundtrip
json j_from_bson = json::from_bson(v_bson);
// serialize to CBOR
std::vector<std::uint8_t> v_cbor = json::to_cbor(j);
@@ -971,8 +786,8 @@ json j_from_ubjson = json::from_ubjson(v_ubjson);
Though it's 2018 already, the support for C++11 is still a bit sparse. Currently, the following compilers are known to work:
- GCC 4.8 - 8.2 (and possibly later)
- Clang 3.4 - 6.1 (and possibly later)
- GCC 4.9 - 7.2 (and possibly later)
- Clang 3.4 - 5.0 (and possibly later)
- Intel C++ Compiler 17.0.2 (and possibly later)
- Microsoft Visual C++ 2015 / Build Tools 14.0.25123.0 (and possibly later)
- Microsoft Visual C++ 2017 / Build Tools 15.5.180.51428 (and possibly later)
@@ -981,7 +796,7 @@ I would be happy to learn about other compilers/versions.
Please note:
- GCC 4.8 has a bug [57824](https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57824)): multiline raw strings cannot be the arguments to macros. Don't use multiline raw strings directly in macros with this compiler.
- GCC 4.8 does not work because of two bugs ([55817](https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55817) and [57824](https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57824)) in the C++11 support. Note there is a [pull request](https://github.com/nlohmann/json/pull/212) to fix some of the issues.
- Android defaults to using very old compilers and C++ libraries. To fix this, add the following to your `Application.mk`. This will switch to the LLVM C++ library, the Clang compiler, and enable C++11 and other features disabled by default.
```
@@ -994,40 +809,32 @@ Please note:
- For GCC running on MinGW or Android SDK, the error `'to_string' is not a member of 'std'` (or similarly, for `strtod`) may occur. Note this is not an issue with the code, but rather with the compiler itself. On Android, see above to build with a newer environment. For MinGW, please refer to [this site](http://tehsausage.com/mingw-to-string) and [this discussion](https://github.com/nlohmann/json/issues/136) for information on how to fix this bug. For Android NDK using `APP_STL := gnustl_static`, please refer to [this discussion](https://github.com/nlohmann/json/issues/219).
- Unsupported versions of GCC and Clang are rejected by `#error` directives. This can be switched off by defining `JSON_SKIP_UNSUPPORTED_COMPILER_CHECK`. Note that you can expect no support in this case.
The following compilers are currently used in continuous integration at [Travis](https://travis-ci.org/nlohmann/json) and [AppVeyor](https://ci.appveyor.com/project/nlohmann/json):
| Compiler | Operating System | Version String |
|-----------------|------------------------------|----------------|
| GCC 4.8.5 | Ubuntu 14.04.5 LTS | g++-4.8 (Ubuntu 4.8.5-2ubuntu1~14.04.2) 4.8.5 |
| GCC 4.9.4 | Ubuntu 14.04.1 LTS | g++-4.9 (Ubuntu 4.9.4-2ubuntu1~14.04.1) 4.9.4 |
| GCC 5.5.0 | Ubuntu 14.04.1 LTS | g++-5 (Ubuntu 5.5.0-12ubuntu1~14.04) 5.5.0 20171010 |
| GCC 6.4.0 | Ubuntu 14.04.1 LTS | g++-6 (Ubuntu 6.4.0-17ubuntu1~14.04) 6.4.0 20180424 |
| GCC 7.3.0 | Ubuntu 14.04.1 LTS | g++-7 (Ubuntu 7.3.0-21ubuntu1~14.04) 7.3.0 |
| GCC 7.3.0 | Windows Server 2012 R2 (x64) | g++ (x86_64-posix-seh-rev0, Built by MinGW-W64 project) 7.3.0 |
| GCC 8.1.0 | Ubuntu 14.04.1 LTS | g++-8 (Ubuntu 8.1.0-5ubuntu1~14.04) 8.1.0 |
| Clang 3.5.0 | Ubuntu 14.04.1 LTS | clang version 3.5.0-4ubuntu2~trusty2 (tags/RELEASE_350/final) (based on LLVM 3.5.0) |
| Clang 3.6.2 | Ubuntu 14.04.1 LTS | clang version 3.6.2-svn240577-1~exp1 (branches/release_36) (based on LLVM 3.6.2) |
| Clang 3.7.1 | Ubuntu 14.04.1 LTS | clang version 3.7.1-svn253571-1~exp1 (branches/release_37) (based on LLVM 3.7.1) |
| Clang 3.8.0 | Ubuntu 14.04.1 LTS | clang version 3.8.0-2ubuntu3~trusty5 (tags/RELEASE_380/final) |
| Clang 3.9.1 | Ubuntu 14.04.1 LTS | clang version 3.9.1-4ubuntu3~14.04.3 (tags/RELEASE_391/rc2) |
| Clang 4.0.1 | Ubuntu 14.04.1 LTS | clang version 4.0.1-svn305264-1~exp1 (branches/release_40) |
| Clang 5.0.2 | Ubuntu 14.04.1 LTS | clang version 5.0.2-svn328729-1~exp1~20180509123505.100 (branches/release_50) |
| Clang 6.0.1 | Ubuntu 14.04.1 LTS | clang version 6.0.1-svn334776-1~exp1~20180726133705.85 (branches/release_60) |
| Clang Xcode 6.4 | OSX 10.10.5 | Apple LLVM version 6.1.0 (clang-602.0.53) (based on LLVM 3.6.0svn) |
| Clang Xcode 7.3 | OSX 10.11.6 | Apple LLVM version 7.3.0 (clang-703.0.31) |
| Clang Xcode 8.0 | OSX 10.11.6 | Apple LLVM version 8.0.0 (clang-800.0.38) |
| Clang Xcode 8.1 | OSX 10.12.6 | Apple LLVM version 8.0.0 (clang-800.0.42.1) |
| Clang Xcode 8.2 | OSX 10.12.6 | Apple LLVM version 8.0.0 (clang-800.0.42.1) |
| Clang Xcode 8.3 | OSX 10.11.6 | Apple LLVM version 8.1.0 (clang-802.0.38) |
| Clang Xcode 9.0 | OSX 10.12.6 | Apple LLVM version 9.0.0 (clang-900.0.37) |
| Clang Xcode 9.1 | OSX 10.12.6 | Apple LLVM version 9.0.0 (clang-900.0.38) |
| Clang Xcode 9.2 | OSX 10.13.3 | Apple LLVM version 9.1.0 (clang-902.0.39.1) |
| Clang Xcode 9.3 | OSX 10.13.3 | Apple LLVM version 9.1.0 (clang-902.0.39.2) |
| Clang Xcode 10.0 | OSX 10.13.3 | Apple LLVM version 10.0.0 (clang-1000.11.45.2) |
| GCC 4.9.4 | Ubuntu 14.04.5 LTS | g++-4.9 (Ubuntu 4.9.4-2ubuntu1~14.04.1) 4.9.4 |
| GCC 5.4.1 | Ubuntu 14.04.5 LTS | g++-5 (Ubuntu 5.4.1-2ubuntu1~14.04) 5.4.1 20160904 |
| GCC 6.3.0 | Ubuntu 14.04.5 LTS | g++-6 (Ubuntu/Linaro 6.3.0-18ubuntu2~14.04) 6.3.0 20170519 |
| GCC 7.1.0 | Ubuntu 14.04.5 LTS | g++-7 (Ubuntu 7.1.0-5ubuntu2~14.04) 7.1.0
| Clang 3.5.0 | Ubuntu 14.04.5 LTS | clang version 3.5.0-4ubuntu2~trusty2 (tags/RELEASE_350/final) |
| Clang 3.6.2 | Ubuntu 14.04.5 LTS | clang version 3.6.2-svn240577-1~exp1 (branches/release_36) |
| Clang 3.7.1 | Ubuntu 14.04.5 LTS | clang version 3.7.1-svn253571-1~exp1 (branches/release_37) |
| Clang 3.8.0 | Ubuntu 14.04.5 LTS | clang version 3.8.0-2ubuntu3~trusty5 (tags/RELEASE_380/final) |
| Clang 3.9.1 | Ubuntu 14.04.5 LTS | clang version 3.9.1-4ubuntu3~14.04.2 (tags/RELEASE_391/rc2) |
| Clang 4.0.1 | Ubuntu 14.04.5 LTS | clang version 4.0.1-svn305264-1~exp1 (branches/release_40) |
| Clang 5.0.0 | Ubuntu 14.04.5 LTS | clang version 5.0.0-svn310902-1~exp1 (branches/release_50) |
| Clang Xcode 6.4 | Darwin Kernel Version 14.3.0 (OSX 10.10.3) | Apple LLVM version 6.1.0 (clang-602.0.53) (based on LLVM 3.6.0svn) |
| Clang Xcode 7.3 | Darwin Kernel Version 15.0.0 (OSX 10.10.5) | Apple LLVM version 7.3.0 (clang-703.0.29) |
| Clang Xcode 8.0 | Darwin Kernel Version 15.6.0 | Apple LLVM version 8.0.0 (clang-800.0.38) |
| Clang Xcode 8.1 | Darwin Kernel Version 16.1.0 (macOS 10.12.1) | Apple LLVM version 8.0.0 (clang-800.0.42.1) |
| Clang Xcode 8.2 | Darwin Kernel Version 16.1.0 (macOS 10.12.1) | Apple LLVM version 8.0.0 (clang-800.0.42.1) |
| Clang Xcode 8.3 | Darwin Kernel Version 16.5.0 (macOS 10.12.4) | Apple LLVM version 8.1.0 (clang-802.0.38) |
| Clang Xcode 9.0 | Darwin Kernel Version 16.7.0 (macOS 10.12.6) | Apple LLVM version 9.0.0 (clang-900.0.37) |
| Clang Xcode 9.1 | Darwin Kernel Version 16.7.0 (macOS 10.12.6) | Apple LLVM version 9.0.0 (clang-900.0.38) |
| Clang Xcode 9.2 | Darwin Kernel Version 16.7.0 (macOS 10.12.6) | Apple LLVM version 8.1.0 (clang-900.0.39.2) |
| Visual Studio 14 2015 | Windows Server 2012 R2 (x64) | Microsoft (R) Build Engine version 14.0.25420.1, MSVC 19.0.24215.1 |
| Visual Studio 2017 | Windows Server 2016 | Microsoft (R) Build Engine version 15.7.180.61344, MSVC 19.14.26433.0 |
| Visual Studio 2017 | Windows Server 2016 | Microsoft (R) Build Engine version 15.5.180.51428, MSVC 19.12.25830.2 |
## License
@@ -1055,9 +862,6 @@ If you have questions regarding the library, I would like to invite you to [open
Only if your request would contain confidential information, please [send me an email](mailto:mail@nlohmann.me). For encrypted messages, please use [this key](https://keybase.io/nlohmann/pgp_keys.asc).
## Security
[Commits by Niels Lohmann](https://github.com/nlohmann/json/commits) and [releases](https://github.com/nlohmann/json/releases) are signed with this [PGP Key](https://keybase.io/nlohmann/pgp_keys.asc?fingerprint=797167ae41c0a6d9232e48457f3cea63ae251b69).
## Thanks
@@ -1112,7 +916,7 @@ I deeply appreciate the help of the following people.
- [Vladimir Petrigo](https://github.com/vpetrigo) made a SFINAE hack more readable and added Visual Studio 17 to the build matrix.
- [Denis Andrejew](https://github.com/seeekr) fixed a grammar issue in the README file.
- [Pierre-Antoine Lacaze](https://github.com/palacaze) found a subtle bug in the `dump()` function.
- [TurpentineDistillery](https://github.com/TurpentineDistillery) pointed to [`std::locale::classic()`](https://en.cppreference.com/w/cpp/locale/locale/classic) to avoid too much locale joggling, found some nice performance improvements in the parser, improved the benchmarking code, and realized locale-independent number parsing and printing.
- [TurpentineDistillery](https://github.com/TurpentineDistillery) pointed to [`std::locale::classic()`](http://en.cppreference.com/w/cpp/locale/locale/classic) to avoid too much locale joggling, found some nice performance improvements in the parser, improved the benchmarking code, and realized locale-independent number parsing and printing.
- [cgzones](https://github.com/cgzones) had an idea how to fix the Coverity scan.
- [Jared Grubb](https://github.com/jaredgrubb) silenced a nasty documentation warning.
- [Yixin Zhang](https://github.com/qwename) fixed an integer overflow check.
@@ -1171,42 +975,14 @@ I deeply appreciate the help of the following people.
- [Paul Fultz II](https://github.com/pfultz2) added a note on the cget package manager.
- [Wilson Lin](https://github.com/wla80) made the integration section of the README more concise.
- [RalfBielig](https://github.com/ralfbielig) detected and fixed a memory leak in the parser callback.
- [agrianius](https://github.com/agrianius) allowed to dump JSON to an alternative string type.
- [Kevin Tonon](https://github.com/ktonon) overworked the C++11 compiler checks in CMake.
- [Axel Huebl](https://github.com/ax3l) simplified a CMake check and added support for the [Spack package manager](https://spack.io).
- [Carlos O'Ryan](https://github.com/coryan) fixed a typo.
- [James Upjohn](https://github.com/jammehcow) fixed a version number in the compilers section.
- [Chuck Atkins](https://github.com/chuckatkins) adjusted the CMake files to the CMake packaging guidelines and provided documentation for the CMake integration.
- [Jan Schöppach](https://github.com/dns13) fixed a typo.
- [martin-mfg](https://github.com/martin-mfg) fixed a typo.
- [Matthias Möller](https://github.com/TinyTinni) removed the dependency from `std::stringstream`.
- [agrianius](https://github.com/agrianius) added code to use alternative string implementations.
- [Daniel599](https://github.com/Daniel599) allowed to use more algorithms with the `items()` function.
- [Julius Rakow](https://github.com/jrakow) fixed the Meson include directory and fixed the links to [cppreference.com](cppreference.com).
- [Sonu Lohani](https://github.com/sonulohani) fixed the compilation with MSVC 2015 in debug mode.
- [grembo](https://github.com/grembo) fixed the test suite and re-enabled several test cases.
- [Hyeon Kim](https://github.com/simnalamburt) introduced the macro `JSON_INTERNAL_CATCH` to control the exception handling inside the library.
- [thyu](https://github.com/thyu) fixed a compiler warning.
- [David Guthrie](https://github.com/LEgregius) fixed a subtle compilation error with Clang 3.4.2.
- [Dennis Fischer](https://github.com/dennisfischer) allowed to call `find_package` without installing the library.
- [Hyeon Kim](https://github.com/simnalamburt) fixed an issue with a double macro definition.
- [Ben Berman](https://github.com/rivertam) made some error messages more understandable.
- [zakalibit](https://github.com/zakalibit) fixed a compilation problem with the Intel C++ compiler.
- [mandreyel](https://github.com/mandreyel) fixed a compilation problem.
- [Kostiantyn Ponomarenko](https://github.com/koponomarenko) added version and license information to the Meson build file.
- [Henry Schreiner](https://github.com/henryiii) added support for GCC 4.8.
- [knilch](https://github.com/knilch0r) made sure the test suite does not stall when run in the wrong directory.
- [Antonio Borondo](https://github.com/antonioborondo) fixed an MSVC 2017 warning.
- [Dan Gendreau](https://github.com/dgendreau) implemented the `NLOHMANN_JSON_SERIALIZE_ENUM` macro to quickly define a enum/JSON mapping.
- [efp](https://github.com/efp) added line and column information to parse errors.
- [julian-becker](https://github.com/julian-becker) added BSON support.
- [agrianius](https://github.com/agrianius) allowed to dump JSON to an alternative string type
Thanks a lot for helping out! Please [let me know](mailto:mail@nlohmann.me) if I forgot someone.
## Used third-party tools
The library itself consists of a single header file licensed under the MIT license. However, it is built, tested, documented, and whatnot using a lot of third-party tools and services. Thanks a lot!
The library itself contains of a single header file licensed under the MIT license. However, it is built, tested, documented, and whatnot using a lot of third-party tools and services. Thanks a lot!
- [**amalgamate.py - Amalgamate C source and header files**](https://github.com/edlund/amalgamate) to create a single header file
- [**American fuzzy lop**](http://lcamtuf.coredump.cx/afl/) for fuzz testing
@@ -1239,7 +1015,7 @@ The library is currently used in Apple macOS Sierra and iOS 10. I am not sure wh
## Notes
- The code contains numerous debug **assertions** which can be switched off by defining the preprocessor macro `NDEBUG`, see the [documentation of `assert`](https://en.cppreference.com/w/cpp/error/assert). In particular, note [`operator[]`](https://nlohmann.github.io/json/classnlohmann_1_1basic__json_a2e26bd0b0168abb61f67ad5bcd5b9fa1.html#a2e26bd0b0168abb61f67ad5bcd5b9fa1) implements **unchecked access** for const objects: If the given key is not present, the behavior is undefined (think of a dereferenced null pointer) and yields an [assertion failure](https://github.com/nlohmann/json/issues/289) if assertions are switched on. If you are not sure whether an element in an object exists, use checked access with the [`at()` function](https://nlohmann.github.io/json/classnlohmann_1_1basic__json_a674de1ee73e6bf4843fc5dc1351fb726.html#a674de1ee73e6bf4843fc5dc1351fb726).
- The code contains numerous debug **assertions** which can be switched off by defining the preprocessor macro `NDEBUG`, see the [documentation of `assert`](http://en.cppreference.com/w/cpp/error/assert). In particular, note [`operator[]`](https://nlohmann.github.io/json/classnlohmann_1_1basic__json_a2e26bd0b0168abb61f67ad5bcd5b9fa1.html#a2e26bd0b0168abb61f67ad5bcd5b9fa1) implements **unchecked access** for const objects: If the given key is not present, the behavior is undefined (think of a dereferenced null pointer) and yields an [assertion failure](https://github.com/nlohmann/json/issues/289) if assertions are switched on. If you are not sure whether an element in an object exists, use checked access with the [`at()` function](https://nlohmann.github.io/json/classnlohmann_1_1basic__json_a674de1ee73e6bf4843fc5dc1351fb726.html#a674de1ee73e6bf4843fc5dc1351fb726).
- As the exact type of a number is not defined in the [JSON specification](http://rfc7159.net/rfc7159), this library tries to choose the best fitting C++ number type automatically. As a result, the type `double` may be used to store numbers which may yield [**floating-point exceptions**](https://github.com/nlohmann/json/issues/181) in certain rare situations if floating-point exceptions have been unmasked in the calling code. These exceptions are not caused by the library and need to be fixed in the calling code, such as by re-masking the exceptions prior to calling library functions.
- The library supports **Unicode input** as follows:
- Only **UTF-8** encoded input is supported which is the default encoding for JSON according to [RFC 7159](http://rfc7159.net/rfc7159#rfc.section.8.1).

View File

@@ -1,58 +1,26 @@
version: '{build}'
os:
- Visual Studio 2015
- Visual Studio 2017
environment:
matrix:
- APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
COMPILER: mingw
platform: x86
FLAGS: ""
GENERATOR: Ninja
- additional_flags: ""
- additional_flags: "/permissive- /std:c++latest /utf-8"
- APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
platform: x86
FLAGS: ""
GENERATOR: Visual Studio 14 2015
matrix:
exclude:
- additional_flags: "/permissive- /std:c++latest /utf-8"
os: Visual Studio 2015
init: []
- APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
platform: x86
FLAGS: ""
GENERATOR: Visual Studio 15 2017
- APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
platform: x86
FLAGS: "/permissive- /std:c++latest /utf-8"
GENERATOR: Visual Studio 15 2017
- APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
platform: x64
FLAGS: ""
GENERATOR: Visual Studio 14 2015
- APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
platform: x64
FLAGS: ""
GENERATOR: Visual Studio 15 2017
- APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
platform: x64
FLAGS: "/permissive- /std:c++latest /utf-8"
GENERATOR: Visual Studio 15 2017
init:
- cmake --version
- msbuild /version
install:
- if "%COMPILER%"=="mingw" appveyor DownloadFile https://github.com/ninja-build/ninja/releases/download/v1.6.0/ninja-win.zip -FileName ninja.zip
- if "%COMPILER%"=="mingw" 7z x ninja.zip -oC:\projects\deps\ninja > nul
- if "%COMPILER%"=="mingw" set PATH=C:\projects\deps\ninja;%PATH%
- if "%COMPILER%"=="mingw" set PATH=C:\mingw-w64\x86_64-7.3.0-posix-seh-rt_v5-rev0\mingw64\bin;%PATH%
- if "%COMPILER%"=="mingw" g++ --version
before_build:
- cmake . -G "%GENERATOR%" -DCMAKE_CXX_FLAGS="%FLAGS%" -DCMAKE_IGNORE_PATH="C:/Program Files/Git/usr/bin"
install: []
build_script:
- IF "%APPVEYOR_BUILD_WORKER_IMAGE%" == "Visual Studio 2015" ( SET GEN="Visual Studio 14 2015") ELSE (SET GEN="Visual Studio 15 2017")
- cmake . -G%GEN% -DCMAKE_CXX_FLAGS="%additional_flags%"
- cmake --build . --config Release
test_script:

View File

@@ -1,9 +1,9 @@
cmake_minimum_required(VERSION 3.8)
cmake_minimum_required(VERSION 3.0)
project(JSON_Benchmarks LANGUAGES CXX)
# set compiler flags
if((CMAKE_CXX_COMPILER_ID MATCHES GNU) OR (CMAKE_CXX_COMPILER_ID MATCHES Clang))
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -flto -DNDEBUG -O3")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -flto -DNDEBUG -O3")
endif()
# configure Google Benchmarks
@@ -23,5 +23,4 @@ file(COPY ${CMAKE_SOURCE_DIR}/../test/data/regression/floats.json
# benchmark binary
add_executable(json_benchmarks src/benchmarks.cpp)
target_compile_features(json_benchmarks PRIVATE cxx_std_11)
target_link_libraries(json_benchmarks benchmark ${CMAKE_THREAD_LIBS_INIT})

View File

@@ -140,7 +140,7 @@ else()
if (GCC_RANLIB)
set(CMAKE_RANLIB ${GCC_RANLIB})
endif()
elseif("${CMAKE_C_COMPILER_ID}" MATCHES "Clang")
elseif("${CMAKE_C_COMPILER_ID}" STREQUAL "Clang")
include(llvm-toolchain)
endif()
endif()
@@ -165,7 +165,7 @@ else()
endif()
if (BENCHMARK_USE_LIBCXX)
if ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
add_cxx_compiler_flag(-stdlib=libc++)
elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU" OR
"${CMAKE_CXX_COMPILER_ID}" STREQUAL "Intel")

View File

@@ -7,7 +7,7 @@ macro(build_external_gtest)
include(ExternalProject)
set(GTEST_FLAGS "")
if (BENCHMARK_USE_LIBCXX)
if ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
list(APPEND GTEST_FLAGS -stdlib=libc++)
else()
message(WARNING "Unsupported compiler (${CMAKE_CXX_COMPILER}) when using libc++")

View File

@@ -1,15 +1,3 @@
include(FindPackageHandleStandardArgs)
set(${CMAKE_FIND_PACKAGE_NAME}_CONFIG ${CMAKE_CURRENT_LIST_FILE})
find_package_handle_standard_args(@PROJECT_NAME@ CONFIG_MODE)
if(NOT TARGET @PROJECT_NAME@::@NLOHMANN_JSON_TARGET_NAME@)
include("${CMAKE_CURRENT_LIST_DIR}/@NLOHMANN_JSON_TARGETS_EXPORT_NAME@.cmake")
if((NOT TARGET @NLOHMANN_JSON_TARGET_NAME@) AND
(NOT @PROJECT_NAME@_FIND_VERSION OR
@PROJECT_NAME@_FIND_VERSION VERSION_LESS 3.2.0))
add_library(@NLOHMANN_JSON_TARGET_NAME@ INTERFACE IMPORTED)
set_target_properties(@NLOHMANN_JSON_TARGET_NAME@ PROPERTIES
INTERFACE_LINK_LIBRARIES @PROJECT_NAME@::@NLOHMANN_JSON_TARGET_NAME@
)
endif()
endif()
@PACKAGE_INIT@
include("${CMAKE_CURRENT_LIST_DIR}/@NLOHMANN_JSON_TARGETS_EXPORT_NAME@.cmake")
check_required_components("@PROJECT_NAME@")

View File

@@ -5,7 +5,7 @@
#---------------------------------------------------------------------------
DOXYFILE_ENCODING = UTF-8
PROJECT_NAME = "JSON for Modern C++"
PROJECT_NUMBER = 3.4.0
PROJECT_NUMBER = 3.1.2
PROJECT_BRIEF =
PROJECT_LOGO =
OUTPUT_DIRECTORY = .

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@@ -1,5 +1,4 @@
#include <iostream>
#include <iomanip>
#include <nlohmann/json.hpp>
using json = nlohmann::json;

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@@ -1 +1 @@
<a target="_blank" href="https://wandbox.org/permlink/f7QirmxXKiKAsPts"><b>online</b></a>
<a target="_blank" href="https://wandbox.org/permlink/TarF5pPn9NtHQjhf"><b>online</b></a>

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@@ -1,5 +1,4 @@
#include <iostream>
#include <iomanip>
#include <nlohmann/json.hpp>
using json = nlohmann::json;

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@@ -1 +1 @@
<a target="_blank" href="https://wandbox.org/permlink/3OPLSVPyweUyEHaX"><b>online</b></a>
<a target="_blank" href="https://wandbox.org/permlink/tfI8DuCuZs3VB9VF"><b>online</b></a>

View File

@@ -30,7 +30,7 @@ int main()
<< j_string.dump(-1, ' ', true) << '\n';
// create JSON value with invalid UTF-8 byte sequence
json j_invalid = "ä\xA9ü";
json j_invalid = "\xF0\xA4\xAD\xC0";
try
{
std::cout << j_invalid.dump() << std::endl;
@@ -39,10 +39,4 @@ int main()
{
std::cout << e.what() << std::endl;
}
std::cout << "string with replaced invalid characters: "
<< j_invalid.dump(-1, ' ', false, json::error_handler_t::replace)
<< "\nstring with ignored invalid characters: "
<< j_invalid.dump(-1, ' ', false, json::error_handler_t::ignore)
<< '\n';
}

View File

@@ -1 +1 @@
<a target="_blank" href="https://wandbox.org/permlink/KtH6hJIe10abhHMi"><b>online</b></a>
<a target="_blank" href="https://wandbox.org/permlink/uC4kna7QsQ0rAt80"><b>online</b></a>

View File

@@ -50,6 +50,4 @@ arrays:
strings:
"Hellö 😀!"
"Hell\u00f6 \ud83d\ude00!"
[json.exception.type_error.316] invalid UTF-8 byte at index 2: 0xA9
string with replaced invalid characters: "ä<>ü"
string with ignored invalid characters: "äü"
[json.exception.type_error.316] invalid UTF-8 byte at index 3: 0xC0

View File

@@ -1,5 +1,4 @@
#include <iostream>
#include <iomanip>
#include <nlohmann/json.hpp>
using json = nlohmann::json;

View File

@@ -1 +1 @@
<a target="_blank" href="https://wandbox.org/permlink/4bn447WQbTERfBaL"><b>online</b></a>
<a target="_blank" href="https://wandbox.org/permlink/E1HQedkl1zo48WW5"><b>online</b></a>

View File

@@ -1,21 +0,0 @@
#include <iostream>
#include <iomanip>
#include <nlohmann/json.hpp>
using json = nlohmann::json;
int main()
{
// create byte vector
std::vector<uint8_t> v = {0x1b, 0x00, 0x00, 0x00, 0x08, 0x63, 0x6f, 0x6d,
0x70, 0x61, 0x63, 0x74, 0x00, 0x01, 0x10, 0x73,
0x63, 0x68, 0x65, 0x6d, 0x61, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00
};
// deserialize it with BSON
json j = json::from_bson(v);
// print the deserialized JSON value
std::cout << std::setw(2) << j << std::endl;
}

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@@ -1 +0,0 @@
<a target="_blank" href="https://wandbox.org/permlink/qtfoxfHO7u4eKMcO"><b>online</b></a>

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@@ -1,4 +0,0 @@
{
"compact": true,
"schema": 0
}

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@@ -1,5 +1,4 @@
#include <iostream>
#include <iomanip>
#include <nlohmann/json.hpp>
using json = nlohmann::json;

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@@ -1 +1 @@
<a target="_blank" href="https://wandbox.org/permlink/AHKW5EMQN4YQ68TY"><b>online</b></a>
<a target="_blank" href="https://wandbox.org/permlink/mya8dUDcDDVoUlBZ"><b>online</b></a>

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@@ -1,5 +1,4 @@
#include <iostream>
#include <iomanip>
#include <nlohmann/json.hpp>
using json = nlohmann::json;

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@@ -1 +1 @@
<a target="_blank" href="https://wandbox.org/permlink/J0KoQF8sOpdMg4kN"><b>online</b></a>
<a target="_blank" href="https://wandbox.org/permlink/sMmEKxW5MGOgLC7z"><b>online</b></a>

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@@ -1,5 +1,4 @@
#include <iostream>
#include <iomanip>
#include <nlohmann/json.hpp>
using json = nlohmann::json;

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@@ -1 +1 @@
<a target="_blank" href="https://wandbox.org/permlink/uuQK0DAjhbSd96K6"><b>online</b></a>
<a target="_blank" href="https://wandbox.org/permlink/qq29jfETq7nZRrh5"><b>online</b></a>

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@@ -1,60 +0,0 @@
#include <iostream>
#include <unordered_map>
#include <nlohmann/json.hpp>
using json = nlohmann::json;
int main()
{
// create a JSON value with different types
json json_types =
{
{"boolean", true},
{
"number", {
{"integer", 42},
{"floating-point", 17.23}
}
},
{"string", "Hello, world!"},
{"array", {1, 2, 3, 4, 5}},
{"null", nullptr}
};
bool v1;
int v2;
short v3;
float v4;
int v5;
std::string v6;
std::vector<short> v7;
std::unordered_map<std::string, json> v8;
// use explicit conversions
json_types["boolean"].get_to(v1);
json_types["number"]["integer"].get_to(v2);
json_types["number"]["integer"].get_to(v3);
json_types["number"]["floating-point"].get_to(v4);
json_types["number"]["floating-point"].get_to(v5);
json_types["string"].get_to(v6);
json_types["array"].get_to(v7);
json_types.get_to(v8);
// print the conversion results
std::cout << v1 << '\n';
std::cout << v2 << ' ' << v3 << '\n';
std::cout << v4 << ' ' << v5 << '\n';
std::cout << v6 << '\n';
for (auto i : v7)
{
std::cout << i << ' ';
}
std::cout << "\n\n";
for (auto i : v8)
{
std::cout << i.first << ": " << i.second << '\n';
}
}

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@@ -1 +0,0 @@
<a target="_blank" href="https://wandbox.org/permlink/QxtxaO6JZAMJPutC"><b>online</b></a>

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@@ -1,11 +0,0 @@
1
42 42
17.23 17
Hello, world!
1 2 3 4 5
string: "Hello, world!"
number: {"floating-point":17.23,"integer":42}
null: null
boolean: true
array: [1,2,3,4,5]

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@@ -1,3 +1,3 @@
[json.exception.parse_error.107] parse error at byte 1: JSON pointer must be empty or begin with '/' - was: 'foo'
[json.exception.parse_error.107] parse error at 1: JSON pointer must be empty or begin with '/' - was: 'foo'
[json.exception.parse_error.108] parse error: escape character '~' must be followed with '0' or '1'
[json.exception.parse_error.108] parse error: escape character '~' must be followed with '0' or '1'

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@@ -1,5 +1,4 @@
#include <iostream>
#include <iomanip>
#include <nlohmann/json.hpp>
using json = nlohmann::json;

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@@ -1 +1 @@
<a target="_blank" href="https://wandbox.org/permlink/eFzRNyod3g4aVkvl"><b>online</b></a>
<a target="_blank" href="https://wandbox.org/permlink/0zdmfNQCe4TMw0iI"><b>online</b></a>

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@@ -2,7 +2,7 @@
"compiler": {
"c++": "201103",
"family": "clang",
"version": "10.0.0 (clang-1000.10.43.1)"
"version": "9.0.0 (clang-900.0.39.2)"
},
"copyright": "(C) 2013-2017 Niels Lohmann",
"name": "JSON for Modern C++",
@@ -10,8 +10,8 @@
"url": "https://github.com/nlohmann/json",
"version": {
"major": 3,
"minor": 4,
"patch": 0,
"string": "3.4.0"
"minor": 1,
"patch": 2,
"string": "3.1.2"
}
}

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@@ -17,8 +17,8 @@ int main()
// output values and comparisons
std::cout << std::boolalpha;
std::cout << array_1 << " > " << array_2 << " " << (array_1 > array_2) << '\n';
std::cout << object_1 << " > " << object_2 << " " << (object_1 > object_2) << '\n';
std::cout << number_1 << " > " << number_2 << " " << (number_1 > number_2) << '\n';
std::cout << string_1 << " > " << string_2 << " " << (string_1 > string_2) << '\n';
std::cout << array_1 << " == " << array_2 << " " << (array_1 > array_2) << '\n';
std::cout << object_1 << " == " << object_2 << " " << (object_1 > object_2) << '\n';
std::cout << number_1 << " == " << number_2 << " " << (number_1 > number_2) << '\n';
std::cout << string_1 << " == " << string_2 << " " << (string_1 > string_2) << '\n';
}

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@@ -1 +1 @@
<a target="_blank" href="https://wandbox.org/permlink/ntF7DMzC85gbQKHu"><b>online</b></a>
<a target="_blank" href="https://wandbox.org/permlink/yiz7oCHVpFHSALB1"><b>online</b></a>

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@@ -1,4 +1,4 @@
[1,2,3] > [1,2,4] false
{"A":"a","B":"b"} > {"A":"a","B":"b"} false
17 > 17.0000000000001 false
"foo" > "bar" true
[1,2,3] == [1,2,4] false
{"A":"a","B":"b"} == {"A":"a","B":"b"} false
17 == 17.0000000000001 false
"foo" == "bar" true

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@@ -1,6 +1,4 @@
#include <iostream>
#include <iomanip>
#include <sstream>
#include <nlohmann/json.hpp>
using json = nlohmann::json;

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@@ -1 +1 @@
<a target="_blank" href="https://wandbox.org/permlink/IvgowYGaX0SgOFIG"><b>online</b></a>
<a target="_blank" href="https://wandbox.org/permlink/YrUqrUFMD7JHwSQR"><b>online</b></a>

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@@ -1,5 +1,4 @@
#include <iostream>
#include <iomanip>
#include <nlohmann/json.hpp>
using json = nlohmann::json;

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@@ -1 +1 @@
<a target="_blank" href="https://wandbox.org/permlink/ckGZIBookDffV00n"><b>online</b></a>
<a target="_blank" href="https://wandbox.org/permlink/wXcm4ObnoaXw7CRt"><b>online</b></a>

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@@ -1,5 +1,4 @@
#include <iostream>
#include <iomanip>
#include <nlohmann/json.hpp>
using json = nlohmann::json;

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@@ -1 +1 @@
<a target="_blank" href="https://wandbox.org/permlink/oKnfnFrLHG8H1OAl"><b>online</b></a>
<a target="_blank" href="https://wandbox.org/permlink/vxt8d8qvYorXS2yq"><b>online</b></a>

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@@ -1,5 +1,4 @@
#include <iostream>
#include <iomanip>
#include <nlohmann/json.hpp>
using json = nlohmann::json;

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@@ -1 +1 @@
<a target="_blank" href="https://wandbox.org/permlink/i3BBhl7Ub5y9b0yp"><b>online</b></a>
<a target="_blank" href="https://wandbox.org/permlink/TSNxHmegVwLW2pXf"><b>online</b></a>

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@@ -1,5 +1,4 @@
#include <iostream>
#include <iomanip>
#include <nlohmann/json.hpp>
using json = nlohmann::json;

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@@ -1 +1 @@
<a target="_blank" href="https://wandbox.org/permlink/sGdJMOaJnFNJBtH7"><b>online</b></a>
<a target="_blank" href="https://wandbox.org/permlink/l3zNo3YKC2X8yAw9"><b>online</b></a>

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@@ -1,6 +1,4 @@
#include <iostream>
#include <iomanip>
#include <sstream>
#include <nlohmann/json.hpp>
using json = nlohmann::json;

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@@ -1 +1 @@
<a target="_blank" href="https://wandbox.org/permlink/UZgRBIeqdZhm6M8F"><b>online</b></a>
<a target="_blank" href="https://wandbox.org/permlink/Mf7A6JtvqT1Na7Pk"><b>online</b></a>

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@@ -1,5 +1,4 @@
#include <iostream>
#include <iomanip>
#include <nlohmann/json.hpp>
using json = nlohmann::json;

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@@ -1 +1 @@
<a target="_blank" href="https://wandbox.org/permlink/VThe0hdMSUdNSOLK"><b>online</b></a>
<a target="_blank" href="https://wandbox.org/permlink/oa6BVkBXjG8DNkzX"><b>online</b></a>

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@@ -1,5 +1,4 @@
#include <iostream>
#include <iomanip>
#include <nlohmann/json.hpp>
using json = nlohmann::json;

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@@ -1 +1 @@
<a target="_blank" href="https://wandbox.org/permlink/QZgjsR0PiAw2Lqpk"><b>online</b></a>
<a target="_blank" href="https://wandbox.org/permlink/QXdl4yzts3qPeZ0U"><b>online</b></a>

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@@ -1,3 +1,3 @@
message: [json.exception.parse_error.101] parse error at line 1, column 8: syntax error while parsing value - unexpected ']'; expected '[', '{', or a literal
message: [json.exception.parse_error.101] parse error at 8: syntax error - unexpected ']'; expected '[', '{', or a literal
exception id: 101
byte position of error: 8

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@@ -1,5 +1,4 @@
#include <iostream>
#include <iomanip>
#include <nlohmann/json.hpp>
using json = nlohmann::json;

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@@ -1 +1 @@
<a target="_blank" href="https://wandbox.org/permlink/hFd1W46W2Hb81sHN"><b>online</b></a>
<a target="_blank" href="https://wandbox.org/permlink/8ObNa6ejw4BXQ5qG"><b>online</b></a>

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@@ -1,124 +0,0 @@
#include <iostream>
#include <iomanip>
#include <sstream>
#include <nlohmann/json.hpp>
using json = nlohmann::json;
// a simple event consumer that collects string representations of the passed
// values; not inheriting from json::json_sax_t is not required, but can
// help not to forget a required function
class sax_event_consumer : public json::json_sax_t
{
public:
std::vector<std::string> events;
bool null() override
{
events.push_back("value: null");
return true;
}
bool boolean(bool val) override
{
events.push_back("value: " + std::string(val ? "true" : "false"));
return true;
}
bool number_integer(number_integer_t val) override
{
events.push_back("value: " + std::to_string(val));
return true;
}
bool number_unsigned(number_unsigned_t val) override
{
events.push_back("value: " + std::to_string(val));
return true;
}
bool number_float(number_float_t val, const string_t& s) override
{
events.push_back("value: " + s);
return true;
}
bool string(string_t& val) override
{
events.push_back("value: " + val);
return true;
}
bool start_object(std::size_t elements) override
{
events.push_back("start: object");
return true;
}
bool end_object() override
{
events.push_back("end: object");
return true;
}
bool start_array(std::size_t elements) override
{
events.push_back("start: array");
return true;
}
bool end_array() override
{
events.push_back("end: array");
return true;
}
bool key(string_t& val) override
{
events.push_back("key: " + val);
return true;
}
bool parse_error(std::size_t position, const std::string& last_token, const json::exception& ex) override
{
events.push_back("error: " + std::string(ex.what()));
return false;
}
};
int main()
{
// a JSON text
auto text = R"(
{
"Image": {
"Width": 800,
"Height": 600,
"Title": "View from 15th Floor",
"Thumbnail": {
"Url": "http://www.example.com/image/481989943",
"Height": 125,
"Width": 100
},
"Animated" : false,
"IDs": [116, 943, 234, 38793],
"Distance": 12.723374634
}
}
)";
// create a SAX event consumer object
sax_event_consumer sec;
// parse and serialize JSON
bool result = json::sax_parse(text, &sec);
// output the recorded events
for (auto& event : sec.events)
{
std::cout << "(" << event << ") ";
}
// output the result of sax_parse
std::cout << "\nresult: " << std::boolalpha << result << std::endl;
}

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@@ -1 +0,0 @@
<a target="_blank" href="https://wandbox.org/permlink/fGkQLWbQn7enKkIG"><b>online</b></a>

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@@ -1,2 +0,0 @@
(start: object) (key: Image) (start: object) (key: Width) (value: 800) (key: Height) (value: 600) (key: Title) (value: View from 15th Floor) (key: Thumbnail) (start: object) (key: Url) (value: http://www.example.com/image/481989943) (key: Height) (value: 125) (key: Width) (value: 100) (end: object) (key: Animated) (value: false) (key: IDs) (start: array) (value: 116) (value: 943) (value: 234) (value: 38793) (end: array) (key: Distance) (value: 12.723374634) (end: object) (end: object)
result: true

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@@ -1,21 +0,0 @@
#include <iostream>
#include <iomanip>
#include <nlohmann/json.hpp>
using json = nlohmann::json;
int main()
{
// create a JSON value
json j = R"({"compact": true, "schema": 0})"_json;
// serialize it to BSON
std::vector<uint8_t> v = json::to_bson(j);
// print the vector content
for (auto& byte : v)
{
std::cout << "0x" << std::hex << std::setw(2) << std::setfill('0') << (int)byte << " ";
}
std::cout << std::endl;
}

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@@ -1 +0,0 @@
<a target="_blank" href="https://wandbox.org/permlink/2roucrct3qDL6LCk"><b>online</b></a>

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@@ -1 +0,0 @@
0x1b 0x00 0x00 0x00 0x08 0x63 0x6f 0x6d 0x70 0x61 0x63 0x74 0x00 0x01 0x10 0x73 0x63 0x68 0x65 0x6d 0x61 0x00 0x00 0x00 0x00 0x00 0x00

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@@ -1,5 +1,4 @@
#include <iostream>
#include <iomanip>
#include <nlohmann/json.hpp>
using json = nlohmann::json;

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@@ -1 +1 @@
<a target="_blank" href="https://wandbox.org/permlink/LRM37xarSuPJmv92"><b>online</b></a>
<a target="_blank" href="https://wandbox.org/permlink/4bQSclXeqjVFYVL3"><b>online</b></a>

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@@ -1,5 +1,4 @@
#include <iostream>
#include <iomanip>
#include <nlohmann/json.hpp>
using json = nlohmann::json;

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@@ -1 +1 @@
<a target="_blank" href="https://wandbox.org/permlink/CaRFhkrefL4miesE"><b>online</b></a>
<a target="_blank" href="https://wandbox.org/permlink/WvT2Q0r9vlJYyMM8"><b>online</b></a>

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@@ -1,5 +1,4 @@
#include <iostream>
#include <iomanip>
#include <nlohmann/json.hpp>
using json = nlohmann::json;

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@@ -1 +1 @@
<a target="_blank" href="https://wandbox.org/permlink/2luqHy9iADx4UNm7"><b>online</b></a>
<a target="_blank" href="https://wandbox.org/permlink/j3HE6cOkCmKbxxAt"><b>online</b></a>

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@@ -1,5 +1,4 @@
#include <iostream>
#include <iomanip>
#include <nlohmann/json.hpp>
using json = nlohmann::json;

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@@ -1 +1 @@
<a target="_blank" href="https://wandbox.org/permlink/knK4jnD2hIVxQoyk"><b>online</b></a>
<a target="_blank" href="https://wandbox.org/permlink/U45AGi5nsDtoDf3u"><b>online</b></a>

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@@ -1,5 +1,4 @@
#include <iostream>
#include <iomanip>
#include <nlohmann/json.hpp>
using json = nlohmann::json;

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@@ -1 +1 @@
<a target="_blank" href="https://wandbox.org/permlink/kjcoWACW7FMqKRBG"><b>online</b></a>
<a target="_blank" href="https://wandbox.org/permlink/TGvdYyJtstacZxWq"><b>online</b></a>

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@@ -1,5 +1,4 @@
#include <iostream>
#include <iomanip>
#include <nlohmann/json.hpp>
using json = nlohmann::json;

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@@ -1 +1 @@
<a target="_blank" href="https://wandbox.org/permlink/0LBIsEa18IrerWwy"><b>online</b></a>
<a target="_blank" href="https://wandbox.org/permlink/BMlas6312rkE4cxz"><b>online</b></a>

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@@ -39,11 +39,9 @@ These pages contain the API documentation of JSON for Modern C++, a C++11 header
- @link nlohmann::basic_json::dump dump @endlink serialize to string
- @link nlohmann::basic_json::operator<<(std::ostream&, const basic_json &) operator<< @endlink serialize to stream
- deserialization / parsing
- @link nlohmann::basic_json::parse parse @endlink parse from input (string, file, etc.) and return JSON value
- @link nlohmann::basic_json::sax_parse sax_parse @endlink parse from input (string, file, etc.) and generate SAX events
- @link nlohmann::basic_json::parse parse @endlink parse from string
- @link nlohmann::basic_json::operator>>(std::istream&, basic_json&) operator>> @endlink parse from stream
- @link nlohmann::basic_json::accept accept @endlink check for syntax errors without parsing
- @link nlohmann::json_sax SAX interface @endlink define a user-defined SAX event consumer
- [binary formats](binary_formats.md):
- CBOR: @link nlohmann::basic_json::from_cbor from_cbor @endlink / @link nlohmann::basic_json::to_cbor to_cbor @endlink
- MessagePack: @link nlohmann::basic_json::from_msgpack from_msgpack @endlink / @link nlohmann::basic_json::to_msgpack to_msgpack @endlink
@@ -306,4 +304,4 @@ Note that this table only lists those exceptions thrown due to the type. For ins
@author [Niels Lohmann](http://nlohmann.me)
@see https://github.com/nlohmann/json to download the source code
@version 3.4.0
@version 3.1.2

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@@ -7,7 +7,6 @@
namespace nlohmann
{
template<typename, typename>
struct adl_serializer
{
@@ -17,13 +16,12 @@ struct adl_serializer
This function is usually called by the `get()` function of the
@ref basic_json class (either explicit or via conversion operators).
@param[in] j JSON value to read from
@param[in] j JSON value to read from
@param[in,out] val value to write to
*/
template<typename BasicJsonType, typename ValueType>
static auto from_json(BasicJsonType&& j, ValueType& val) noexcept(
static void from_json(BasicJsonType&& j, ValueType& val) noexcept(
noexcept(::nlohmann::from_json(std::forward<BasicJsonType>(j), val)))
-> decltype(::nlohmann::from_json(std::forward<BasicJsonType>(j), val), void())
{
::nlohmann::from_json(std::forward<BasicJsonType>(j), val);
}
@@ -35,15 +33,13 @@ struct adl_serializer
class.
@param[in,out] j JSON value to write to
@param[in] val value to read from
@param[in] val value to read from
*/
template <typename BasicJsonType, typename ValueType>
static auto to_json(BasicJsonType& j, ValueType&& val) noexcept(
template<typename BasicJsonType, typename ValueType>
static void to_json(BasicJsonType& j, ValueType&& val) noexcept(
noexcept(::nlohmann::to_json(j, std::forward<ValueType>(val))))
-> decltype(::nlohmann::to_json(j, std::forward<ValueType>(val)), void())
{
::nlohmann::to_json(j, std::forward<ValueType>(val));
}
};
} // namespace nlohmann
}

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@@ -5,34 +5,21 @@
#include <ciso646> // and, not
#include <forward_list> // forward_list
#include <iterator> // inserter, front_inserter, end
#include <map> // map
#include <string> // string
#include <tuple> // tuple, make_tuple
#include <type_traits> // is_arithmetic, is_same, is_enum, underlying_type, is_convertible
#include <unordered_map> // unordered_map
#include <utility> // pair, declval
#include <valarray> // valarray
#include <nlohmann/detail/exceptions.hpp>
#include <nlohmann/detail/macro_scope.hpp>
#include <nlohmann/detail/meta/cpp_future.hpp>
#include <nlohmann/detail/meta/type_traits.hpp>
#include <nlohmann/detail/meta.hpp>
#include <nlohmann/detail/value_t.hpp>
namespace nlohmann
{
namespace detail
{
template<typename BasicJsonType>
void from_json(const BasicJsonType& j, typename std::nullptr_t& n)
{
if (JSON_UNLIKELY(not j.is_null()))
{
JSON_THROW(type_error::create(302, "type must be null, but is " + std::string(j.type_name())));
}
n = nullptr;
}
// overloads for basic_json template parameters
template<typename BasicJsonType, typename ArithmeticType,
enable_if_t<std::is_arithmetic<ArithmeticType>::value and
@@ -83,23 +70,6 @@ void from_json(const BasicJsonType& j, typename BasicJsonType::string_t& s)
s = *j.template get_ptr<const typename BasicJsonType::string_t*>();
}
template <
typename BasicJsonType, typename ConstructibleStringType,
enable_if_t <
is_constructible_string_type<BasicJsonType, ConstructibleStringType>::value and
not std::is_same<typename BasicJsonType::string_t,
ConstructibleStringType>::value,
int > = 0 >
void from_json(const BasicJsonType& j, ConstructibleStringType& s)
{
if (JSON_UNLIKELY(not j.is_string()))
{
JSON_THROW(type_error::create(302, "type must be string, but is " + std::string(j.type_name())));
}
s = *j.template get_ptr<const typename BasicJsonType::string_t*>();
}
template<typename BasicJsonType>
void from_json(const BasicJsonType& j, typename BasicJsonType::number_float_t& val)
{
@@ -127,6 +97,16 @@ void from_json(const BasicJsonType& j, EnumType& e)
e = static_cast<EnumType>(val);
}
template<typename BasicJsonType>
void from_json(const BasicJsonType& j, typename BasicJsonType::array_t& arr)
{
if (JSON_UNLIKELY(not j.is_array()))
{
JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(j.type_name())));
}
arr = *j.template get_ptr<const typename BasicJsonType::array_t*>();
}
// forward_list doesn't have an insert method
template<typename BasicJsonType, typename T, typename Allocator,
enable_if_t<std::is_convertible<BasicJsonType, T>::value, int> = 0>
@@ -156,28 +136,24 @@ void from_json(const BasicJsonType& j, std::valarray<T>& l)
std::copy(j.m_value.array->begin(), j.m_value.array->end(), std::begin(l));
}
template<typename BasicJsonType>
void from_json_array_impl(const BasicJsonType& j, typename BasicJsonType::array_t& arr, priority_tag<3> /*unused*/)
template<typename BasicJsonType, typename CompatibleArrayType>
void from_json_array_impl(const BasicJsonType& j, CompatibleArrayType& arr, priority_tag<0> /*unused*/)
{
arr = *j.template get_ptr<const typename BasicJsonType::array_t*>();
}
using std::end;
template <typename BasicJsonType, typename T, std::size_t N>
auto from_json_array_impl(const BasicJsonType& j, std::array<T, N>& arr,
priority_tag<2> /*unused*/)
-> decltype(j.template get<T>(), void())
{
for (std::size_t i = 0; i < N; ++i)
std::transform(j.begin(), j.end(),
std::inserter(arr, end(arr)), [](const BasicJsonType & i)
{
arr[i] = j.at(i).template get<T>();
}
// get<BasicJsonType>() returns *this, this won't call a from_json
// method when value_type is BasicJsonType
return i.template get<typename CompatibleArrayType::value_type>();
});
}
template<typename BasicJsonType, typename ConstructibleArrayType>
auto from_json_array_impl(const BasicJsonType& j, ConstructibleArrayType& arr, priority_tag<1> /*unused*/)
template<typename BasicJsonType, typename CompatibleArrayType>
auto from_json_array_impl(const BasicJsonType& j, CompatibleArrayType& arr, priority_tag<1> /*unused*/)
-> decltype(
arr.reserve(std::declval<typename ConstructibleArrayType::size_type>()),
j.template get<typename ConstructibleArrayType::value_type>(),
arr.reserve(std::declval<typename CompatibleArrayType::size_type>()),
void())
{
using std::end;
@@ -188,38 +164,29 @@ auto from_json_array_impl(const BasicJsonType& j, ConstructibleArrayType& arr, p
{
// get<BasicJsonType>() returns *this, this won't call a from_json
// method when value_type is BasicJsonType
return i.template get<typename ConstructibleArrayType::value_type>();
return i.template get<typename CompatibleArrayType::value_type>();
});
}
template <typename BasicJsonType, typename ConstructibleArrayType>
void from_json_array_impl(const BasicJsonType& j, ConstructibleArrayType& arr,
priority_tag<0> /*unused*/)
template<typename BasicJsonType, typename T, std::size_t N>
void from_json_array_impl(const BasicJsonType& j, std::array<T, N>& arr, priority_tag<2> /*unused*/)
{
using std::end;
std::transform(
j.begin(), j.end(), std::inserter(arr, end(arr)),
[](const BasicJsonType & i)
for (std::size_t i = 0; i < N; ++i)
{
// get<BasicJsonType>() returns *this, this won't call a from_json
// method when value_type is BasicJsonType
return i.template get<typename ConstructibleArrayType::value_type>();
});
arr[i] = j.at(i).template get<T>();
}
}
template <typename BasicJsonType, typename ConstructibleArrayType,
enable_if_t <
is_constructible_array_type<BasicJsonType, ConstructibleArrayType>::value and
not is_constructible_object_type<BasicJsonType, ConstructibleArrayType>::value and
not is_constructible_string_type<BasicJsonType, ConstructibleArrayType>::value and
not is_basic_json<ConstructibleArrayType>::value,
int > = 0 >
auto from_json(const BasicJsonType& j, ConstructibleArrayType& arr)
-> decltype(from_json_array_impl(j, arr, priority_tag<3> {}),
j.template get<typename ConstructibleArrayType::value_type>(),
void())
template <
typename BasicJsonType, typename CompatibleArrayType,
enable_if_t <
is_compatible_array_type<BasicJsonType, CompatibleArrayType>::value and
not std::is_same<typename BasicJsonType::array_t,
CompatibleArrayType>::value and
std::is_constructible <
BasicJsonType, typename CompatibleArrayType::value_type >::value,
int > = 0 >
void from_json(const BasicJsonType& j, CompatibleArrayType& arr)
{
if (JSON_UNLIKELY(not j.is_array()))
{
@@ -227,12 +194,12 @@ void())
std::string(j.type_name())));
}
from_json_array_impl(j, arr, priority_tag<3> {});
from_json_array_impl(j, arr, priority_tag<2> {});
}
template<typename BasicJsonType, typename ConstructibleObjectType,
enable_if_t<is_constructible_object_type<BasicJsonType, ConstructibleObjectType>::value, int> = 0>
void from_json(const BasicJsonType& j, ConstructibleObjectType& obj)
template<typename BasicJsonType, typename CompatibleObjectType,
enable_if_t<is_compatible_object_type<BasicJsonType, CompatibleObjectType>::value, int> = 0>
void from_json(const BasicJsonType& j, CompatibleObjectType& obj)
{
if (JSON_UNLIKELY(not j.is_object()))
{
@@ -240,13 +207,13 @@ void from_json(const BasicJsonType& j, ConstructibleObjectType& obj)
}
auto inner_object = j.template get_ptr<const typename BasicJsonType::object_t*>();
using value_type = typename ConstructibleObjectType::value_type;
using value_type = typename CompatibleObjectType::value_type;
std::transform(
inner_object->begin(), inner_object->end(),
std::inserter(obj, obj.begin()),
[](typename BasicJsonType::object_t::value_type const & p)
{
return value_type(p.first, p.second.template get<typename ConstructibleObjectType::mapped_type>());
return value_type(p.first, p.second.template get<typename CompatibleObjectType::mapped_type>());
});
}
@@ -299,7 +266,7 @@ void from_json(const BasicJsonType& j, std::pair<A1, A2>& p)
}
template<typename BasicJsonType, typename Tuple, std::size_t... Idx>
void from_json_tuple_impl(const BasicJsonType& j, Tuple& t, index_sequence<Idx...> /*unused*/)
void from_json_tuple_impl(const BasicJsonType& j, Tuple& t, index_sequence<Idx...>)
{
t = std::make_tuple(j.at(Idx).template get<typename std::tuple_element<Idx, Tuple>::type>()...);
}
@@ -310,55 +277,39 @@ void from_json(const BasicJsonType& j, std::tuple<Args...>& t)
from_json_tuple_impl(j, t, index_sequence_for<Args...> {});
}
template <typename BasicJsonType, typename Key, typename Value, typename Compare, typename Allocator,
typename = enable_if_t<not std::is_constructible<
typename BasicJsonType::string_t, Key>::value>>
void from_json(const BasicJsonType& j, std::map<Key, Value, Compare, Allocator>& m)
{
if (JSON_UNLIKELY(not j.is_array()))
{
JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(j.type_name())));
}
for (const auto& p : j)
{
if (JSON_UNLIKELY(not p.is_array()))
{
JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(p.type_name())));
}
m.emplace(p.at(0).template get<Key>(), p.at(1).template get<Value>());
}
}
template <typename BasicJsonType, typename Key, typename Value, typename Hash, typename KeyEqual, typename Allocator,
typename = enable_if_t<not std::is_constructible<
typename BasicJsonType::string_t, Key>::value>>
void from_json(const BasicJsonType& j, std::unordered_map<Key, Value, Hash, KeyEqual, Allocator>& m)
{
if (JSON_UNLIKELY(not j.is_array()))
{
JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(j.type_name())));
}
for (const auto& p : j)
{
if (JSON_UNLIKELY(not p.is_array()))
{
JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(p.type_name())));
}
m.emplace(p.at(0).template get<Key>(), p.at(1).template get<Value>());
}
}
struct from_json_fn
{
private:
template<typename BasicJsonType, typename T>
auto operator()(const BasicJsonType& j, T& val) const
auto call(const BasicJsonType& j, T& val, priority_tag<1> /*unused*/) const
noexcept(noexcept(from_json(j, val)))
-> decltype(from_json(j, val), void())
{
return from_json(j, val);
}
template<typename BasicJsonType, typename T>
void call(const BasicJsonType& /*unused*/, T& /*unused*/, priority_tag<0> /*unused*/) const noexcept
{
static_assert(sizeof(BasicJsonType) == 0,
"could not find from_json() method in T's namespace");
#ifdef _MSC_VER
// MSVC does not show a stacktrace for the above assert
using decayed = uncvref_t<T>;
static_assert(sizeof(typename decayed::force_msvc_stacktrace) == 0,
"forcing MSVC stacktrace to show which T we're talking about.");
#endif
}
public:
template<typename BasicJsonType, typename T>
void operator()(const BasicJsonType& j, T& val) const
noexcept(noexcept(std::declval<from_json_fn>().call(j, val, priority_tag<1> {})))
{
return call(j, val, priority_tag<1> {});
}
};
} // namespace detail
}
/// namespace to hold default `from_json` function
/// to see why this is required:
@@ -366,5 +317,5 @@ struct from_json_fn
namespace
{
constexpr const auto& from_json = detail::static_const<detail::from_json_fn>::value;
} // namespace
} // namespace nlohmann
}
}

View File

@@ -47,9 +47,10 @@ struct diyfp // f * 2^e
{
static constexpr int kPrecision = 64; // = q
uint64_t f = 0;
int e = 0;
uint64_t f;
int e;
constexpr diyfp() noexcept : f(0), e(0) {}
constexpr diyfp(uint64_t f_, int e_) noexcept : f(f_), e(e_) {}
/*!
@@ -61,7 +62,7 @@ struct diyfp // f * 2^e
assert(x.e == y.e);
assert(x.f >= y.f);
return {x.f - y.f, x.e};
return diyfp(x.f - y.f, x.e);
}
/*!
@@ -126,7 +127,7 @@ struct diyfp // f * 2^e
const uint64_t h = p3 + p2_hi + p1_hi + (Q >> 32);
return {h, x.e + y.e + 64};
return diyfp(h, x.e + y.e + 64);
}
/*!
@@ -157,7 +158,7 @@ struct diyfp // f * 2^e
assert(delta >= 0);
assert(((x.f << delta) >> delta) == x.f);
return {x.f << delta, target_exponent};
return diyfp(x.f << delta, target_exponent);
}
};
@@ -460,7 +461,7 @@ inline cached_power get_cached_power_for_binary_exponent(int e)
assert(e >= -1500);
assert(e <= 1500);
const int f = kAlpha - e - 1;
const int k = (f * 78913) / (1 << 18) + static_cast<int>(f > 0);
const int k = (f * 78913) / (1 << 18) + (f > 0);
const int index = (-kCachedPowersMinDecExp + k + (kCachedPowersDecStep - 1)) / kCachedPowersDecStep;
assert(index >= 0);
@@ -608,7 +609,7 @@ inline void grisu2_digit_gen(char* buffer, int& length, int& decimal_exponent,
const diyfp one(uint64_t{1} << -M_plus.e, M_plus.e);
auto p1 = static_cast<uint32_t>(M_plus.f >> -one.e); // p1 = f div 2^-e (Since -e >= 32, p1 fits into a 32-bit int.)
uint32_t p1 = static_cast<uint32_t>(M_plus.f >> -one.e); // p1 = f div 2^-e (Since -e >= 32, p1 fits into a 32-bit int.)
uint64_t p2 = M_plus.f & (one.f - 1); // p2 = f mod 2^-e
// 1)
@@ -886,7 +887,7 @@ void grisu2(char* buf, int& len, int& decimal_exponent, FloatType value)
// numbers, all float's can be recovered using strtod (and strtof). However, the resulting
// decimal representations are not exactly "short".
//
// The documentation for 'std::to_chars' (https://en.cppreference.com/w/cpp/utility/to_chars)
// The documentation for 'std::to_chars' (http://en.cppreference.com/w/cpp/utility/to_chars)
// says "value is converted to a string as if by std::sprintf in the default ("C") locale"
// and since sprintf promotes float's to double's, I think this is exactly what 'std::to_chars'
// does.
@@ -927,7 +928,7 @@ inline char* append_exponent(char* buf, int e)
*buf++ = '+';
}
auto k = static_cast<uint32_t>(e);
uint32_t k = static_cast<uint32_t>(e);
if (k < 10)
{
// Always print at least two digits in the exponent.
@@ -1045,7 +1046,7 @@ format. Returns an iterator pointing past-the-end of the decimal representation.
@note The result is NOT null-terminated.
*/
template <typename FloatType>
char* to_chars(char* first, const char* last, FloatType value)
char* to_chars(char* first, char* last, FloatType value)
{
static_cast<void>(last); // maybe unused - fix warning
assert(std::isfinite(value));

View File

@@ -8,10 +8,8 @@
#include <valarray> // valarray
#include <vector> // vector
#include <nlohmann/detail/meta/cpp_future.hpp>
#include <nlohmann/detail/meta/type_traits.hpp>
#include <nlohmann/detail/meta.hpp>
#include <nlohmann/detail/value_t.hpp>
#include <nlohmann/detail/iterators/iteration_proxy.hpp>
namespace nlohmann
{
@@ -53,16 +51,6 @@ struct external_constructor<value_t::string>
j.m_value = std::move(s);
j.assert_invariant();
}
template<typename BasicJsonType, typename CompatibleStringType,
enable_if_t<not std::is_same<CompatibleStringType, typename BasicJsonType::string_t>::value,
int> = 0>
static void construct(BasicJsonType& j, const CompatibleStringType& str)
{
j.m_type = value_t::string;
j.m_value.string = j.template create<typename BasicJsonType::string_t>(str);
j.assert_invariant();
}
};
template<>
@@ -248,14 +236,10 @@ void to_json(BasicJsonType& j, const std::vector<bool>& e)
external_constructor<value_t::array>::construct(j, e);
}
template <typename BasicJsonType, typename CompatibleArrayType,
enable_if_t<is_compatible_array_type<BasicJsonType,
CompatibleArrayType>::value and
not is_compatible_object_type<
BasicJsonType, CompatibleArrayType>::value and
not is_compatible_string_type<BasicJsonType, CompatibleArrayType>::value and
not is_basic_json<CompatibleArrayType>::value,
int> = 0>
template<typename BasicJsonType, typename CompatibleArrayType,
enable_if_t<is_compatible_array_type<BasicJsonType, CompatibleArrayType>::value or
std::is_same<typename BasicJsonType::array_t, CompatibleArrayType>::value,
int> = 0>
void to_json(BasicJsonType& j, const CompatibleArrayType& arr)
{
external_constructor<value_t::array>::construct(j, arr);
@@ -263,7 +247,7 @@ void to_json(BasicJsonType& j, const CompatibleArrayType& arr)
template<typename BasicJsonType, typename T,
enable_if_t<std::is_convertible<T, BasicJsonType>::value, int> = 0>
void to_json(BasicJsonType& j, const std::valarray<T>& arr)
void to_json(BasicJsonType& j, std::valarray<T> arr)
{
external_constructor<value_t::array>::construct(j, std::move(arr));
}
@@ -275,7 +259,7 @@ void to_json(BasicJsonType& j, typename BasicJsonType::array_t&& arr)
}
template<typename BasicJsonType, typename CompatibleObjectType,
enable_if_t<is_compatible_object_type<BasicJsonType, CompatibleObjectType>::value and not is_basic_json<CompatibleObjectType>::value, int> = 0>
enable_if_t<is_compatible_object_type<BasicJsonType, CompatibleObjectType>::value, int> = 0>
void to_json(BasicJsonType& j, const CompatibleObjectType& obj)
{
external_constructor<value_t::object>::construct(j, obj);
@@ -287,12 +271,9 @@ void to_json(BasicJsonType& j, typename BasicJsonType::object_t&& obj)
external_constructor<value_t::object>::construct(j, std::move(obj));
}
template <
typename BasicJsonType, typename T, std::size_t N,
enable_if_t<not std::is_constructible<typename BasicJsonType::string_t,
const T (&)[N]>::value,
int> = 0 >
void to_json(BasicJsonType& j, const T (&arr)[N])
template<typename BasicJsonType, typename T, std::size_t N,
enable_if_t<not std::is_constructible<typename BasicJsonType::string_t, T (&)[N]>::value, int> = 0>
void to_json(BasicJsonType& j, T (&arr)[N])
{
external_constructor<value_t::array>::construct(j, arr);
}
@@ -303,16 +284,8 @@ void to_json(BasicJsonType& j, const std::pair<Args...>& p)
j = {p.first, p.second};
}
// for https://github.com/nlohmann/json/pull/1134
template<typename BasicJsonType, typename T,
enable_if_t<std::is_same<T, typename iteration_proxy<typename BasicJsonType::iterator>::iteration_proxy_internal>::value, int> = 0>
void to_json(BasicJsonType& j, const T& b)
{
j = {{b.key(), b.value()}};
}
template<typename BasicJsonType, typename Tuple, std::size_t... Idx>
void to_json_tuple_impl(BasicJsonType& j, const Tuple& t, index_sequence<Idx...> /*unused*/)
void to_json_tuple_impl(BasicJsonType& j, const Tuple& t, index_sequence<Idx...>)
{
j = {std::get<Idx>(t)...};
}
@@ -325,18 +298,41 @@ void to_json(BasicJsonType& j, const std::tuple<Args...>& t)
struct to_json_fn
{
private:
template<typename BasicJsonType, typename T>
auto operator()(BasicJsonType& j, T&& val) const noexcept(noexcept(to_json(j, std::forward<T>(val))))
auto call(BasicJsonType& j, T&& val, priority_tag<1> /*unused*/) const noexcept(noexcept(to_json(j, std::forward<T>(val))))
-> decltype(to_json(j, std::forward<T>(val)), void())
{
return to_json(j, std::forward<T>(val));
}
template<typename BasicJsonType, typename T>
void call(BasicJsonType& /*unused*/, T&& /*unused*/, priority_tag<0> /*unused*/) const noexcept
{
static_assert(sizeof(BasicJsonType) == 0,
"could not find to_json() method in T's namespace");
#ifdef _MSC_VER
// MSVC does not show a stacktrace for the above assert
using decayed = uncvref_t<T>;
static_assert(sizeof(typename decayed::force_msvc_stacktrace) == 0,
"forcing MSVC stacktrace to show which T we're talking about.");
#endif
}
public:
template<typename BasicJsonType, typename T>
void operator()(BasicJsonType& j, T&& val) const
noexcept(noexcept(std::declval<to_json_fn>().call(j, std::forward<T>(val), priority_tag<1> {})))
{
return call(j, std::forward<T>(val), priority_tag<1> {});
}
};
} // namespace detail
}
/// namespace to hold default `to_json` function
namespace
{
constexpr const auto& to_json = detail::static_const<detail::to_json_fn>::value;
} // namespace
} // namespace nlohmann
}
}

View File

@@ -4,8 +4,6 @@
#include <stdexcept> // runtime_error
#include <string> // to_string
#include <nlohmann/detail/input/position_t.hpp>
namespace nlohmann
{
namespace detail
@@ -93,7 +91,6 @@ json.exception.parse_error.109 | parse error: array index 'one' is not a number
json.exception.parse_error.110 | parse error at 1: cannot read 2 bytes from vector | When parsing CBOR or MessagePack, the byte vector ends before the complete value has been read.
json.exception.parse_error.112 | parse error at 1: error reading CBOR; last byte: 0xF8 | Not all types of CBOR or MessagePack are supported. This exception occurs if an unsupported byte was read.
json.exception.parse_error.113 | parse error at 2: expected a CBOR string; last byte: 0x98 | While parsing a map key, a value that is not a string has been read.
json.exception.parse_error.114 | parse error: Unsupported BSON record type 0x0F | The parsing of the corresponding BSON record type is not implemented (yet).
@note For an input with n bytes, 1 is the index of the first character and n+1
is the index of the terminating null byte or the end of file. This also
@@ -117,23 +114,15 @@ class parse_error : public exception
/*!
@brief create a parse error exception
@param[in] id_ the id of the exception
@param[in] position the position where the error occurred (or with
chars_read_total=0 if the position cannot be
determined)
@param[in] byte_ the byte index where the error occurred (or 0 if the
position cannot be determined)
@param[in] what_arg the explanatory string
@return parse_error object
*/
static parse_error create(int id_, const position_t& pos, const std::string& what_arg)
{
std::string w = exception::name("parse_error", id_) + "parse error" +
position_string(pos) + ": " + what_arg;
return parse_error(id_, pos.chars_read_total, w.c_str());
}
static parse_error create(int id_, std::size_t byte_, const std::string& what_arg)
{
std::string w = exception::name("parse_error", id_) + "parse error" +
(byte_ != 0 ? (" at byte " + std::to_string(byte_)) : "") +
(byte_ != 0 ? (" at " + std::to_string(byte_)) : "") +
": " + what_arg;
return parse_error(id_, byte_, w.c_str());
}
@@ -152,12 +141,6 @@ class parse_error : public exception
private:
parse_error(int id_, std::size_t byte_, const char* what_arg)
: exception(id_, what_arg), byte(byte_) {}
static std::string position_string(const position_t& pos)
{
return " at line " + std::to_string(pos.lines_read + 1) +
", column " + std::to_string(pos.chars_read_current_line);
}
};
/*!
@@ -237,7 +220,6 @@ json.exception.type_error.313 | invalid value to unflatten | The @ref unflatten
json.exception.type_error.314 | only objects can be unflattened | The @ref unflatten function only works for an object whose keys are JSON Pointers.
json.exception.type_error.315 | values in object must be primitive | The @ref unflatten function only works for an object whose keys are JSON Pointers and whose values are primitive.
json.exception.type_error.316 | invalid UTF-8 byte at index 10: 0x7E | The @ref dump function only works with UTF-8 encoded strings; that is, if you assign a `std::string` to a JSON value, make sure it is UTF-8 encoded. |
json.exception.type_error.317 | JSON value cannot be serialized to requested format | The dynamic type of the object cannot be represented in the requested serialization format (e.g. a raw `true` or `null` JSON object cannot be serialized to BSON) |
@liveexample{The following code shows how a `type_error` exception can be
caught.,type_error}
@@ -280,9 +262,8 @@ json.exception.out_of_range.403 | key 'foo' not found | The provided key was not
json.exception.out_of_range.404 | unresolved reference token 'foo' | A reference token in a JSON Pointer could not be resolved.
json.exception.out_of_range.405 | JSON pointer has no parent | The JSON Patch operations 'remove' and 'add' can not be applied to the root element of the JSON value.
json.exception.out_of_range.406 | number overflow parsing '10E1000' | A parsed number could not be stored as without changing it to NaN or INF.
json.exception.out_of_range.407 | number overflow serializing '9223372036854775808' | UBJSON and BSON only support integer numbers up to 9223372036854775807. |
json.exception.out_of_range.407 | number overflow serializing '9223372036854775808' | UBJSON only supports integers numbers up to 9223372036854775807. |
json.exception.out_of_range.408 | excessive array size: 8658170730974374167 | The size (following `#`) of an UBJSON array or object exceeds the maximal capacity. |
json.exception.out_of_range.409 | BSON key cannot contain code point U+0000 (at byte 2) | Key identifiers to be serialized to BSON cannot contain code point U+0000, since the key is stored as zero-terminated c-string |
@liveexample{The following code shows how an `out_of_range` exception can be
caught.,out_of_range}
@@ -345,5 +326,5 @@ class other_error : public exception
private:
other_error(int id_, const char* what_arg) : exception(id_, what_arg) {}
};
} // namespace detail
} // namespace nlohmann
}
}

File diff suppressed because it is too large Load Diff

View File

@@ -1,8 +1,11 @@
#pragma once
#include <algorithm> // min
#include <array> // array
#include <cassert> // assert
#include <cstddef> // size_t
#include <cstring> // strlen
#include <ios> // streamsize, streamoff, streampos
#include <istream> // istream
#include <iterator> // begin, end, iterator_traits, random_access_iterator_tag, distance, next
#include <memory> // shared_ptr, make_shared, addressof
@@ -17,9 +20,6 @@ namespace nlohmann
{
namespace detail
{
/// the supported input formats
enum class input_format_t { json, cbor, msgpack, ubjson, bson };
////////////////////
// input adapters //
////////////////////
@@ -28,17 +28,19 @@ enum class input_format_t { json, cbor, msgpack, ubjson, bson };
@brief abstract input adapter interface
Produces a stream of std::char_traits<char>::int_type characters from a
std::istream, a buffer, or some other input type. Accepts the return of
exactly one non-EOF character for future input. The int_type characters
returned consist of all valid char values as positive values (typically
unsigned char), plus an EOF value outside that range, specified by the value
of the function std::char_traits<char>::eof(). This value is typically -1, but
could be any arbitrary value which is not a valid char value.
std::istream, a buffer, or some other input type. Accepts the return of exactly
one non-EOF character for future input. The int_type characters returned
consist of all valid char values as positive values (typically unsigned char),
plus an EOF value outside that range, specified by the value of the function
std::char_traits<char>::eof(). This value is typically -1, but could be any
arbitrary value which is not a valid char value.
*/
struct input_adapter_protocol
{
/// get a character [0,255] or std::char_traits<char>::eof().
virtual std::char_traits<char>::int_type get_character() = 0;
/// restore the last non-eof() character to input
virtual void unget_character() = 0;
virtual ~input_adapter_protocol() = default;
};
@@ -66,13 +68,38 @@ class input_stream_adapter : public input_adapter_protocol
explicit input_stream_adapter(std::istream& i)
: is(i), sb(*i.rdbuf())
{}
{
// skip byte order mark
std::char_traits<char>::int_type c;
if ((c = get_character()) == 0xEF)
{
if ((c = get_character()) == 0xBB)
{
if ((c = get_character()) == 0xBF)
{
return; // Ignore BOM
}
else if (c != std::char_traits<char>::eof())
{
is.unget();
}
is.putback('\xBB');
}
else if (c != std::char_traits<char>::eof())
{
is.unget();
}
is.putback('\xEF');
}
else if (c != std::char_traits<char>::eof())
{
is.unget(); // no byte order mark; process as usual
}
}
// delete because of pointer members
input_stream_adapter(const input_stream_adapter&) = delete;
input_stream_adapter& operator=(input_stream_adapter&) = delete;
input_stream_adapter(input_stream_adapter&&) = delete;
input_stream_adapter& operator=(input_stream_adapter&&) = delete;
// std::istream/std::streambuf use std::char_traits<char>::to_int_type, to
// ensure that std::char_traits<char>::eof() and the character 0xFF do not
@@ -82,6 +109,11 @@ class input_stream_adapter : public input_adapter_protocol
return sb.sbumpc();
}
void unget_character() override
{
sb.sungetc(); // is.unget() avoided for performance
}
private:
/// the associated input stream
std::istream& is;
@@ -92,16 +124,19 @@ class input_stream_adapter : public input_adapter_protocol
class input_buffer_adapter : public input_adapter_protocol
{
public:
input_buffer_adapter(const char* b, const std::size_t l) noexcept
: cursor(b), limit(b + l)
{}
input_buffer_adapter(const char* b, const std::size_t l)
: cursor(b), limit(b + l), start(b)
{
// skip byte order mark
if (l >= 3 and b[0] == '\xEF' and b[1] == '\xBB' and b[2] == '\xBF')
{
cursor += 3;
}
}
// delete because of pointer members
input_buffer_adapter(const input_buffer_adapter&) = delete;
input_buffer_adapter& operator=(input_buffer_adapter&) = delete;
input_buffer_adapter(input_buffer_adapter&&) = delete;
input_buffer_adapter& operator=(input_buffer_adapter&&) = delete;
~input_buffer_adapter() override = default;
std::char_traits<char>::int_type get_character() noexcept override
{
@@ -113,174 +148,21 @@ class input_buffer_adapter : public input_adapter_protocol
return std::char_traits<char>::eof();
}
void unget_character() noexcept override
{
if (JSON_LIKELY(cursor > start))
{
--cursor;
}
}
private:
/// pointer to the current character
const char* cursor;
/// pointer past the last character
const char* const limit;
};
template<typename WideStringType, size_t T>
struct wide_string_input_helper
{
// UTF-32
static void fill_buffer(const WideStringType& str, size_t& current_wchar, std::array<std::char_traits<char>::int_type, 4>& utf8_bytes, size_t& utf8_bytes_index, size_t& utf8_bytes_filled)
{
utf8_bytes_index = 0;
if (current_wchar == str.size())
{
utf8_bytes[0] = std::char_traits<char>::eof();
utf8_bytes_filled = 1;
}
else
{
// get the current character
const auto wc = static_cast<int>(str[current_wchar++]);
// UTF-32 to UTF-8 encoding
if (wc < 0x80)
{
utf8_bytes[0] = wc;
utf8_bytes_filled = 1;
}
else if (wc <= 0x7FF)
{
utf8_bytes[0] = 0xC0 | ((wc >> 6) & 0x1F);
utf8_bytes[1] = 0x80 | (wc & 0x3F);
utf8_bytes_filled = 2;
}
else if (wc <= 0xFFFF)
{
utf8_bytes[0] = 0xE0 | ((wc >> 12) & 0x0F);
utf8_bytes[1] = 0x80 | ((wc >> 6) & 0x3F);
utf8_bytes[2] = 0x80 | (wc & 0x3F);
utf8_bytes_filled = 3;
}
else if (wc <= 0x10FFFF)
{
utf8_bytes[0] = 0xF0 | ((wc >> 18) & 0x07);
utf8_bytes[1] = 0x80 | ((wc >> 12) & 0x3F);
utf8_bytes[2] = 0x80 | ((wc >> 6) & 0x3F);
utf8_bytes[3] = 0x80 | (wc & 0x3F);
utf8_bytes_filled = 4;
}
else
{
// unknown character
utf8_bytes[0] = wc;
utf8_bytes_filled = 1;
}
}
}
};
template<typename WideStringType>
struct wide_string_input_helper<WideStringType, 2>
{
// UTF-16
static void fill_buffer(const WideStringType& str, size_t& current_wchar, std::array<std::char_traits<char>::int_type, 4>& utf8_bytes, size_t& utf8_bytes_index, size_t& utf8_bytes_filled)
{
utf8_bytes_index = 0;
if (current_wchar == str.size())
{
utf8_bytes[0] = std::char_traits<char>::eof();
utf8_bytes_filled = 1;
}
else
{
// get the current character
const auto wc = static_cast<int>(str[current_wchar++]);
// UTF-16 to UTF-8 encoding
if (wc < 0x80)
{
utf8_bytes[0] = wc;
utf8_bytes_filled = 1;
}
else if (wc <= 0x7FF)
{
utf8_bytes[0] = 0xC0 | ((wc >> 6));
utf8_bytes[1] = 0x80 | (wc & 0x3F);
utf8_bytes_filled = 2;
}
else if (0xD800 > wc or wc >= 0xE000)
{
utf8_bytes[0] = 0xE0 | ((wc >> 12));
utf8_bytes[1] = 0x80 | ((wc >> 6) & 0x3F);
utf8_bytes[2] = 0x80 | (wc & 0x3F);
utf8_bytes_filled = 3;
}
else
{
if (current_wchar < str.size())
{
const auto wc2 = static_cast<int>(str[current_wchar++]);
const int charcode = 0x10000 + (((wc & 0x3FF) << 10) | (wc2 & 0x3FF));
utf8_bytes[0] = 0xf0 | (charcode >> 18);
utf8_bytes[1] = 0x80 | ((charcode >> 12) & 0x3F);
utf8_bytes[2] = 0x80 | ((charcode >> 6) & 0x3F);
utf8_bytes[3] = 0x80 | (charcode & 0x3F);
utf8_bytes_filled = 4;
}
else
{
// unknown character
++current_wchar;
utf8_bytes[0] = wc;
utf8_bytes_filled = 1;
}
}
}
}
};
template<typename WideStringType>
class wide_string_input_adapter : public input_adapter_protocol
{
public:
explicit wide_string_input_adapter(const WideStringType& w) noexcept
: str(w)
{}
std::char_traits<char>::int_type get_character() noexcept override
{
// check if buffer needs to be filled
if (utf8_bytes_index == utf8_bytes_filled)
{
fill_buffer<sizeof(typename WideStringType::value_type)>();
assert(utf8_bytes_filled > 0);
assert(utf8_bytes_index == 0);
}
// use buffer
assert(utf8_bytes_filled > 0);
assert(utf8_bytes_index < utf8_bytes_filled);
return utf8_bytes[utf8_bytes_index++];
}
private:
template<size_t T>
void fill_buffer()
{
wide_string_input_helper<WideStringType, T>::fill_buffer(str, current_wchar, utf8_bytes, utf8_bytes_index, utf8_bytes_filled);
}
/// the wstring to process
const WideStringType& str;
/// index of the current wchar in str
std::size_t current_wchar = 0;
/// a buffer for UTF-8 bytes
std::array<std::char_traits<char>::int_type, 4> utf8_bytes = {{0, 0, 0, 0}};
/// index to the utf8_codes array for the next valid byte
std::size_t utf8_bytes_index = 0;
/// number of valid bytes in the utf8_codes array
std::size_t utf8_bytes_filled = 0;
const char* limit;
/// pointer to the first character
const char* start;
};
class input_adapter
@@ -296,15 +178,6 @@ class input_adapter
input_adapter(std::istream&& i)
: ia(std::make_shared<input_stream_adapter>(i)) {}
input_adapter(const std::wstring& ws)
: ia(std::make_shared<wide_string_input_adapter<std::wstring>>(ws)) {}
input_adapter(const std::u16string& ws)
: ia(std::make_shared<wide_string_input_adapter<std::u16string>>(ws)) {}
input_adapter(const std::u32string& ws)
: ia(std::make_shared<wide_string_input_adapter<std::u32string>>(ws)) {}
/// input adapter for buffer
template<typename CharT,
typename std::enable_if<
@@ -335,18 +208,15 @@ class input_adapter
int>::type = 0>
input_adapter(IteratorType first, IteratorType last)
{
#ifndef NDEBUG
// assertion to check that the iterator range is indeed contiguous,
// see http://stackoverflow.com/a/35008842/266378 for more discussion
const auto is_contiguous = std::accumulate(
first, last, std::pair<bool, int>(true, 0),
[&first](std::pair<bool, int> res, decltype(*first) val)
assert(std::accumulate(
first, last, std::pair<bool, int>(true, 0),
[&first](std::pair<bool, int> res, decltype(*first) val)
{
res.first &= (val == *(std::next(std::addressof(*first), res.second++)));
return res;
}).first;
assert(is_contiguous);
#endif
}).first);
// assertion to check that each element is 1 byte long
static_assert(
@@ -388,5 +258,5 @@ class input_adapter
/// the actual adapter
input_adapter_t ia = nullptr;
};
} // namespace detail
} // namespace nlohmann
}
}

View File

@@ -1,701 +0,0 @@
#pragma once
#include <cstddef>
#include <string>
#include <vector>
#include <nlohmann/detail/input/parser.hpp>
#include <nlohmann/detail/exceptions.hpp>
namespace nlohmann
{
/*!
@brief SAX interface
This class describes the SAX interface used by @ref nlohmann::json::sax_parse.
Each function is called in different situations while the input is parsed. The
boolean return value informs the parser whether to continue processing the
input.
*/
template<typename BasicJsonType>
struct json_sax
{
/// type for (signed) integers
using number_integer_t = typename BasicJsonType::number_integer_t;
/// type for unsigned integers
using number_unsigned_t = typename BasicJsonType::number_unsigned_t;
/// type for floating-point numbers
using number_float_t = typename BasicJsonType::number_float_t;
/// type for strings
using string_t = typename BasicJsonType::string_t;
/*!
@brief a null value was read
@return whether parsing should proceed
*/
virtual bool null() = 0;
/*!
@brief a boolean value was read
@param[in] val boolean value
@return whether parsing should proceed
*/
virtual bool boolean(bool val) = 0;
/*!
@brief an integer number was read
@param[in] val integer value
@return whether parsing should proceed
*/
virtual bool number_integer(number_integer_t val) = 0;
/*!
@brief an unsigned integer number was read
@param[in] val unsigned integer value
@return whether parsing should proceed
*/
virtual bool number_unsigned(number_unsigned_t val) = 0;
/*!
@brief an floating-point number was read
@param[in] val floating-point value
@param[in] s raw token value
@return whether parsing should proceed
*/
virtual bool number_float(number_float_t val, const string_t& s) = 0;
/*!
@brief a string was read
@param[in] val string value
@return whether parsing should proceed
@note It is safe to move the passed string.
*/
virtual bool string(string_t& val) = 0;
/*!
@brief the beginning of an object was read
@param[in] elements number of object elements or -1 if unknown
@return whether parsing should proceed
@note binary formats may report the number of elements
*/
virtual bool start_object(std::size_t elements) = 0;
/*!
@brief an object key was read
@param[in] val object key
@return whether parsing should proceed
@note It is safe to move the passed string.
*/
virtual bool key(string_t& val) = 0;
/*!
@brief the end of an object was read
@return whether parsing should proceed
*/
virtual bool end_object() = 0;
/*!
@brief the beginning of an array was read
@param[in] elements number of array elements or -1 if unknown
@return whether parsing should proceed
@note binary formats may report the number of elements
*/
virtual bool start_array(std::size_t elements) = 0;
/*!
@brief the end of an array was read
@return whether parsing should proceed
*/
virtual bool end_array() = 0;
/*!
@brief a parse error occurred
@param[in] position the position in the input where the error occurs
@param[in] last_token the last read token
@param[in] ex an exception object describing the error
@return whether parsing should proceed (must return false)
*/
virtual bool parse_error(std::size_t position,
const std::string& last_token,
const detail::exception& ex) = 0;
virtual ~json_sax() = default;
};
namespace detail
{
/*!
@brief SAX implementation to create a JSON value from SAX events
This class implements the @ref json_sax interface and processes the SAX events
to create a JSON value which makes it basically a DOM parser. The structure or
hierarchy of the JSON value is managed by the stack `ref_stack` which contains
a pointer to the respective array or object for each recursion depth.
After successful parsing, the value that is passed by reference to the
constructor contains the parsed value.
@tparam BasicJsonType the JSON type
*/
template<typename BasicJsonType>
class json_sax_dom_parser
{
public:
using number_integer_t = typename BasicJsonType::number_integer_t;
using number_unsigned_t = typename BasicJsonType::number_unsigned_t;
using number_float_t = typename BasicJsonType::number_float_t;
using string_t = typename BasicJsonType::string_t;
/*!
@param[in, out] r reference to a JSON value that is manipulated while
parsing
@param[in] allow_exceptions_ whether parse errors yield exceptions
*/
explicit json_sax_dom_parser(BasicJsonType& r, const bool allow_exceptions_ = true)
: root(r), allow_exceptions(allow_exceptions_)
{}
bool null()
{
handle_value(nullptr);
return true;
}
bool boolean(bool val)
{
handle_value(val);
return true;
}
bool number_integer(number_integer_t val)
{
handle_value(val);
return true;
}
bool number_unsigned(number_unsigned_t val)
{
handle_value(val);
return true;
}
bool number_float(number_float_t val, const string_t& /*unused*/)
{
handle_value(val);
return true;
}
bool string(string_t& val)
{
handle_value(val);
return true;
}
bool start_object(std::size_t len)
{
ref_stack.push_back(handle_value(BasicJsonType::value_t::object));
if (JSON_UNLIKELY(len != std::size_t(-1) and len > ref_stack.back()->max_size()))
{
JSON_THROW(out_of_range::create(408,
"excessive object size: " + std::to_string(len)));
}
return true;
}
bool key(string_t& val)
{
// add null at given key and store the reference for later
object_element = &(ref_stack.back()->m_value.object->operator[](val));
return true;
}
bool end_object()
{
ref_stack.pop_back();
return true;
}
bool start_array(std::size_t len)
{
ref_stack.push_back(handle_value(BasicJsonType::value_t::array));
if (JSON_UNLIKELY(len != std::size_t(-1) and len > ref_stack.back()->max_size()))
{
JSON_THROW(out_of_range::create(408,
"excessive array size: " + std::to_string(len)));
}
return true;
}
bool end_array()
{
ref_stack.pop_back();
return true;
}
bool parse_error(std::size_t /*unused*/, const std::string& /*unused*/,
const detail::exception& ex)
{
errored = true;
if (allow_exceptions)
{
// determine the proper exception type from the id
switch ((ex.id / 100) % 100)
{
case 1:
JSON_THROW(*reinterpret_cast<const detail::parse_error*>(&ex));
case 4:
JSON_THROW(*reinterpret_cast<const detail::out_of_range*>(&ex));
// LCOV_EXCL_START
case 2:
JSON_THROW(*reinterpret_cast<const detail::invalid_iterator*>(&ex));
case 3:
JSON_THROW(*reinterpret_cast<const detail::type_error*>(&ex));
case 5:
JSON_THROW(*reinterpret_cast<const detail::other_error*>(&ex));
default:
assert(false);
// LCOV_EXCL_STOP
}
}
return false;
}
constexpr bool is_errored() const
{
return errored;
}
private:
/*!
@invariant If the ref stack is empty, then the passed value will be the new
root.
@invariant If the ref stack contains a value, then it is an array or an
object to which we can add elements
*/
template<typename Value>
BasicJsonType* handle_value(Value&& v)
{
if (ref_stack.empty())
{
root = BasicJsonType(std::forward<Value>(v));
return &root;
}
assert(ref_stack.back()->is_array() or ref_stack.back()->is_object());
if (ref_stack.back()->is_array())
{
ref_stack.back()->m_value.array->emplace_back(std::forward<Value>(v));
return &(ref_stack.back()->m_value.array->back());
}
else
{
assert(object_element);
*object_element = BasicJsonType(std::forward<Value>(v));
return object_element;
}
}
/// the parsed JSON value
BasicJsonType& root;
/// stack to model hierarchy of values
std::vector<BasicJsonType*> ref_stack;
/// helper to hold the reference for the next object element
BasicJsonType* object_element = nullptr;
/// whether a syntax error occurred
bool errored = false;
/// whether to throw exceptions in case of errors
const bool allow_exceptions = true;
};
template<typename BasicJsonType>
class json_sax_dom_callback_parser
{
public:
using number_integer_t = typename BasicJsonType::number_integer_t;
using number_unsigned_t = typename BasicJsonType::number_unsigned_t;
using number_float_t = typename BasicJsonType::number_float_t;
using string_t = typename BasicJsonType::string_t;
using parser_callback_t = typename BasicJsonType::parser_callback_t;
using parse_event_t = typename BasicJsonType::parse_event_t;
json_sax_dom_callback_parser(BasicJsonType& r,
const parser_callback_t cb,
const bool allow_exceptions_ = true)
: root(r), callback(cb), allow_exceptions(allow_exceptions_)
{
keep_stack.push_back(true);
}
bool null()
{
handle_value(nullptr);
return true;
}
bool boolean(bool val)
{
handle_value(val);
return true;
}
bool number_integer(number_integer_t val)
{
handle_value(val);
return true;
}
bool number_unsigned(number_unsigned_t val)
{
handle_value(val);
return true;
}
bool number_float(number_float_t val, const string_t& /*unused*/)
{
handle_value(val);
return true;
}
bool string(string_t& val)
{
handle_value(val);
return true;
}
bool start_object(std::size_t len)
{
// check callback for object start
const bool keep = callback(static_cast<int>(ref_stack.size()), parse_event_t::object_start, discarded);
keep_stack.push_back(keep);
auto val = handle_value(BasicJsonType::value_t::object, true);
ref_stack.push_back(val.second);
// check object limit
if (ref_stack.back())
{
if (JSON_UNLIKELY(len != std::size_t(-1) and len > ref_stack.back()->max_size()))
{
JSON_THROW(out_of_range::create(408,
"excessive object size: " + std::to_string(len)));
}
}
return true;
}
bool key(string_t& val)
{
BasicJsonType k = BasicJsonType(val);
// check callback for key
const bool keep = callback(static_cast<int>(ref_stack.size()), parse_event_t::key, k);
key_keep_stack.push_back(keep);
// add discarded value at given key and store the reference for later
if (keep and ref_stack.back())
{
object_element = &(ref_stack.back()->m_value.object->operator[](val) = discarded);
}
return true;
}
bool end_object()
{
if (ref_stack.back())
{
if (not callback(static_cast<int>(ref_stack.size()) - 1, parse_event_t::object_end, *ref_stack.back()))
{
// discard object
*ref_stack.back() = discarded;
}
}
assert(not ref_stack.empty());
assert(not keep_stack.empty());
ref_stack.pop_back();
keep_stack.pop_back();
if (not ref_stack.empty() and ref_stack.back())
{
// remove discarded value
if (ref_stack.back()->is_object())
{
for (auto it = ref_stack.back()->begin(); it != ref_stack.back()->end(); ++it)
{
if (it->is_discarded())
{
ref_stack.back()->erase(it);
break;
}
}
}
}
return true;
}
bool start_array(std::size_t len)
{
const bool keep = callback(static_cast<int>(ref_stack.size()), parse_event_t::array_start, discarded);
keep_stack.push_back(keep);
auto val = handle_value(BasicJsonType::value_t::array, true);
ref_stack.push_back(val.second);
// check array limit
if (ref_stack.back())
{
if (JSON_UNLIKELY(len != std::size_t(-1) and len > ref_stack.back()->max_size()))
{
JSON_THROW(out_of_range::create(408,
"excessive array size: " + std::to_string(len)));
}
}
return true;
}
bool end_array()
{
bool keep = true;
if (ref_stack.back())
{
keep = callback(static_cast<int>(ref_stack.size()) - 1, parse_event_t::array_end, *ref_stack.back());
if (not keep)
{
// discard array
*ref_stack.back() = discarded;
}
}
assert(not ref_stack.empty());
assert(not keep_stack.empty());
ref_stack.pop_back();
keep_stack.pop_back();
// remove discarded value
if (not keep and not ref_stack.empty())
{
if (ref_stack.back()->is_array())
{
ref_stack.back()->m_value.array->pop_back();
}
}
return true;
}
bool parse_error(std::size_t /*unused*/, const std::string& /*unused*/,
const detail::exception& ex)
{
errored = true;
if (allow_exceptions)
{
// determine the proper exception type from the id
switch ((ex.id / 100) % 100)
{
case 1:
JSON_THROW(*reinterpret_cast<const detail::parse_error*>(&ex));
case 4:
JSON_THROW(*reinterpret_cast<const detail::out_of_range*>(&ex));
// LCOV_EXCL_START
case 2:
JSON_THROW(*reinterpret_cast<const detail::invalid_iterator*>(&ex));
case 3:
JSON_THROW(*reinterpret_cast<const detail::type_error*>(&ex));
case 5:
JSON_THROW(*reinterpret_cast<const detail::other_error*>(&ex));
default:
assert(false);
// LCOV_EXCL_STOP
}
}
return false;
}
constexpr bool is_errored() const
{
return errored;
}
private:
/*!
@param[in] v value to add to the JSON value we build during parsing
@param[in] skip_callback whether we should skip calling the callback
function; this is required after start_array() and
start_object() SAX events, because otherwise we would call the
callback function with an empty array or object, respectively.
@invariant If the ref stack is empty, then the passed value will be the new
root.
@invariant If the ref stack contains a value, then it is an array or an
object to which we can add elements
@return pair of boolean (whether value should be kept) and pointer (to the
passed value in the ref_stack hierarchy; nullptr if not kept)
*/
template<typename Value>
std::pair<bool, BasicJsonType*> handle_value(Value&& v, const bool skip_callback = false)
{
assert(not keep_stack.empty());
// do not handle this value if we know it would be added to a discarded
// container
if (not keep_stack.back())
{
return {false, nullptr};
}
// create value
auto value = BasicJsonType(std::forward<Value>(v));
// check callback
const bool keep = skip_callback or callback(static_cast<int>(ref_stack.size()), parse_event_t::value, value);
// do not handle this value if we just learnt it shall be discarded
if (not keep)
{
return {false, nullptr};
}
if (ref_stack.empty())
{
root = std::move(value);
return {true, &root};
}
// skip this value if we already decided to skip the parent
// (https://github.com/nlohmann/json/issues/971#issuecomment-413678360)
if (not ref_stack.back())
{
return {false, nullptr};
}
// we now only expect arrays and objects
assert(ref_stack.back()->is_array() or ref_stack.back()->is_object());
if (ref_stack.back()->is_array())
{
ref_stack.back()->m_value.array->push_back(std::move(value));
return {true, &(ref_stack.back()->m_value.array->back())};
}
else
{
// check if we should store an element for the current key
assert(not key_keep_stack.empty());
const bool store_element = key_keep_stack.back();
key_keep_stack.pop_back();
if (not store_element)
{
return {false, nullptr};
}
assert(object_element);
*object_element = std::move(value);
return {true, object_element};
}
}
/// the parsed JSON value
BasicJsonType& root;
/// stack to model hierarchy of values
std::vector<BasicJsonType*> ref_stack;
/// stack to manage which values to keep
std::vector<bool> keep_stack;
/// stack to manage which object keys to keep
std::vector<bool> key_keep_stack;
/// helper to hold the reference for the next object element
BasicJsonType* object_element = nullptr;
/// whether a syntax error occurred
bool errored = false;
/// callback function
const parser_callback_t callback = nullptr;
/// whether to throw exceptions in case of errors
const bool allow_exceptions = true;
/// a discarded value for the callback
BasicJsonType discarded = BasicJsonType::value_t::discarded;
};
template<typename BasicJsonType>
class json_sax_acceptor
{
public:
using number_integer_t = typename BasicJsonType::number_integer_t;
using number_unsigned_t = typename BasicJsonType::number_unsigned_t;
using number_float_t = typename BasicJsonType::number_float_t;
using string_t = typename BasicJsonType::string_t;
bool null()
{
return true;
}
bool boolean(bool /*unused*/)
{
return true;
}
bool number_integer(number_integer_t /*unused*/)
{
return true;
}
bool number_unsigned(number_unsigned_t /*unused*/)
{
return true;
}
bool number_float(number_float_t /*unused*/, const string_t& /*unused*/)
{
return true;
}
bool string(string_t& /*unused*/)
{
return true;
}
bool start_object(std::size_t /*unused*/ = std::size_t(-1))
{
return true;
}
bool key(string_t& /*unused*/)
{
return true;
}
bool end_object()
{
return true;
}
bool start_array(std::size_t /*unused*/ = std::size_t(-1))
{
return true;
}
bool end_array()
{
return true;
}
bool parse_error(std::size_t /*unused*/, const std::string& /*unused*/, const detail::exception& /*unused*/)
{
return false;
}
};
} // namespace detail
} // namespace nlohmann

View File

@@ -3,14 +3,15 @@
#include <clocale> // localeconv
#include <cstddef> // size_t
#include <cstdlib> // strtof, strtod, strtold, strtoll, strtoull
#include <cstdio> // snprintf
#include <initializer_list> // initializer_list
#include <ios> // hex, uppercase
#include <iomanip> // setw, setfill
#include <sstream> // stringstream
#include <string> // char_traits, string
#include <vector> // vector
#include <nlohmann/detail/macro_scope.hpp>
#include <nlohmann/detail/input/input_adapters.hpp>
#include <nlohmann/detail/input/position_t.hpp>
namespace nlohmann
{
@@ -93,22 +94,17 @@ class lexer
return "end of input";
case token_type::literal_or_value:
return "'[', '{', or a literal";
// LCOV_EXCL_START
default: // catch non-enum values
return "unknown token";
// LCOV_EXCL_STOP
return "unknown token"; // LCOV_EXCL_LINE
}
}
explicit lexer(detail::input_adapter_t&& adapter)
explicit lexer(detail::input_adapter_t adapter)
: ia(std::move(adapter)), decimal_point_char(get_decimal_point()) {}
// delete because of pointer members
lexer(const lexer&) = delete;
lexer(lexer&&) = delete;
lexer& operator=(lexer&) = delete;
lexer& operator=(lexer&&) = delete;
~lexer() = default;
private:
/////////////////////
@@ -397,194 +393,39 @@ class lexer
// invalid control characters
case 0x00:
{
error_message = "invalid string: control character U+0000 (NUL) must be escaped to \\u0000";
return token_type::parse_error;
}
case 0x01:
{
error_message = "invalid string: control character U+0001 (SOH) must be escaped to \\u0001";
return token_type::parse_error;
}
case 0x02:
{
error_message = "invalid string: control character U+0002 (STX) must be escaped to \\u0002";
return token_type::parse_error;
}
case 0x03:
{
error_message = "invalid string: control character U+0003 (ETX) must be escaped to \\u0003";
return token_type::parse_error;
}
case 0x04:
{
error_message = "invalid string: control character U+0004 (EOT) must be escaped to \\u0004";
return token_type::parse_error;
}
case 0x05:
{
error_message = "invalid string: control character U+0005 (ENQ) must be escaped to \\u0005";
return token_type::parse_error;
}
case 0x06:
{
error_message = "invalid string: control character U+0006 (ACK) must be escaped to \\u0006";
return token_type::parse_error;
}
case 0x07:
{
error_message = "invalid string: control character U+0007 (BEL) must be escaped to \\u0007";
return token_type::parse_error;
}
case 0x08:
{
error_message = "invalid string: control character U+0008 (BS) must be escaped to \\u0008 or \\b";
return token_type::parse_error;
}
case 0x09:
{
error_message = "invalid string: control character U+0009 (HT) must be escaped to \\u0009 or \\t";
return token_type::parse_error;
}
case 0x0A:
{
error_message = "invalid string: control character U+000A (LF) must be escaped to \\u000A or \\n";
return token_type::parse_error;
}
case 0x0B:
{
error_message = "invalid string: control character U+000B (VT) must be escaped to \\u000B";
return token_type::parse_error;
}
case 0x0C:
{
error_message = "invalid string: control character U+000C (FF) must be escaped to \\u000C or \\f";
return token_type::parse_error;
}
case 0x0D:
{
error_message = "invalid string: control character U+000D (CR) must be escaped to \\u000D or \\r";
return token_type::parse_error;
}
case 0x0E:
{
error_message = "invalid string: control character U+000E (SO) must be escaped to \\u000E";
return token_type::parse_error;
}
case 0x0F:
{
error_message = "invalid string: control character U+000F (SI) must be escaped to \\u000F";
return token_type::parse_error;
}
case 0x10:
{
error_message = "invalid string: control character U+0010 (DLE) must be escaped to \\u0010";
return token_type::parse_error;
}
case 0x11:
{
error_message = "invalid string: control character U+0011 (DC1) must be escaped to \\u0011";
return token_type::parse_error;
}
case 0x12:
{
error_message = "invalid string: control character U+0012 (DC2) must be escaped to \\u0012";
return token_type::parse_error;
}
case 0x13:
{
error_message = "invalid string: control character U+0013 (DC3) must be escaped to \\u0013";
return token_type::parse_error;
}
case 0x14:
{
error_message = "invalid string: control character U+0014 (DC4) must be escaped to \\u0014";
return token_type::parse_error;
}
case 0x15:
{
error_message = "invalid string: control character U+0015 (NAK) must be escaped to \\u0015";
return token_type::parse_error;
}
case 0x16:
{
error_message = "invalid string: control character U+0016 (SYN) must be escaped to \\u0016";
return token_type::parse_error;
}
case 0x17:
{
error_message = "invalid string: control character U+0017 (ETB) must be escaped to \\u0017";
return token_type::parse_error;
}
case 0x18:
{
error_message = "invalid string: control character U+0018 (CAN) must be escaped to \\u0018";
return token_type::parse_error;
}
case 0x19:
{
error_message = "invalid string: control character U+0019 (EM) must be escaped to \\u0019";
return token_type::parse_error;
}
case 0x1A:
{
error_message = "invalid string: control character U+001A (SUB) must be escaped to \\u001A";
return token_type::parse_error;
}
case 0x1B:
{
error_message = "invalid string: control character U+001B (ESC) must be escaped to \\u001B";
return token_type::parse_error;
}
case 0x1C:
{
error_message = "invalid string: control character U+001C (FS) must be escaped to \\u001C";
return token_type::parse_error;
}
case 0x1D:
{
error_message = "invalid string: control character U+001D (GS) must be escaped to \\u001D";
return token_type::parse_error;
}
case 0x1E:
{
error_message = "invalid string: control character U+001E (RS) must be escaped to \\u001E";
return token_type::parse_error;
}
case 0x1F:
{
error_message = "invalid string: control character U+001F (US) must be escaped to \\u001F";
error_message = "invalid string: control character must be escaped";
return token_type::parse_error;
}
@@ -868,7 +709,7 @@ class lexer
locale's decimal point is used instead of `.` to work with the
locale-dependent converters.
*/
token_type scan_number() // lgtm [cpp/use-of-goto]
token_type scan_number()
{
// reset token_buffer to store the number's bytes
reset();
@@ -906,13 +747,11 @@ class lexer
goto scan_number_any1;
}
// LCOV_EXCL_START
default:
{
// all other characters are rejected outside scan_number()
assert(false);
assert(false); // LCOV_EXCL_LINE
}
// LCOV_EXCL_STOP
}
scan_number_minus:
@@ -1241,62 +1080,22 @@ scan_number_done:
*/
std::char_traits<char>::int_type get()
{
++position.chars_read_total;
++position.chars_read_current_line;
if (next_unget)
{
// just reset the next_unget variable and work with current
next_unget = false;
}
else
{
current = ia->get_character();
}
++chars_read;
current = ia->get_character();
if (JSON_LIKELY(current != std::char_traits<char>::eof()))
{
token_string.push_back(std::char_traits<char>::to_char_type(current));
}
if (current == '\n')
{
++position.lines_read;
++position.chars_read_current_line = 0;
}
return current;
}
/*!
@brief unget current character (read it again on next get)
We implement unget by setting variable next_unget to true. The input is not
changed - we just simulate ungetting by modifying chars_read_total,
chars_read_current_line, and token_string. The next call to get() will
behave as if the unget character is read again.
*/
/// unget current character (return it again on next get)
void unget()
{
next_unget = true;
--position.chars_read_total;
// in case we "unget" a newline, we have to also decrement the lines_read
if (position.chars_read_current_line == 0)
{
if (position.lines_read > 0)
{
--position.lines_read;
}
}
else
{
--position.chars_read_current_line;
}
--chars_read;
if (JSON_LIKELY(current != std::char_traits<char>::eof()))
{
ia->unget_character();
assert(token_string.size() != 0);
token_string.pop_back();
}
@@ -1332,9 +1131,9 @@ scan_number_done:
}
/// return current string value (implicitly resets the token; useful only once)
string_t& get_string()
string_t&& move_string()
{
return token_buffer;
return std::move(token_buffer);
}
/////////////////////
@@ -1342,9 +1141,9 @@ scan_number_done:
/////////////////////
/// return position of last read token
constexpr position_t get_position() const noexcept
constexpr std::size_t get_position() const noexcept
{
return position;
return chars_read;
}
/// return the last read token (for errors only). Will never contain EOF
@@ -1359,9 +1158,10 @@ scan_number_done:
if ('\x00' <= c and c <= '\x1F')
{
// escape control characters
char cs[9];
snprintf(cs, 9, "<U+%.4X>", static_cast<unsigned char>(c));
result += cs;
std::stringstream ss;
ss << "<U+" << std::setw(4) << std::uppercase << std::setfill('0')
<< std::hex << static_cast<int>(c) << ">";
result += ss.str();
}
else
{
@@ -1383,33 +1183,8 @@ scan_number_done:
// actual scanner
/////////////////////
/*!
@brief skip the UTF-8 byte order mark
@return true iff there is no BOM or the correct BOM has been skipped
*/
bool skip_bom()
{
if (get() == 0xEF)
{
// check if we completely parse the BOM
return get() == 0xBB and get() == 0xBF;
}
// the first character is not the beginning of the BOM; unget it to
// process is later
unget();
return true;
}
token_type scan()
{
// initially, skip the BOM
if (position.chars_read_total == 0 and not skip_bom())
{
error_message = "invalid BOM; must be 0xEF 0xBB 0xBF if given";
return token_type::parse_error;
}
// read next character and ignore whitespace
do
{
@@ -1479,11 +1254,8 @@ scan_number_done:
/// the current character
std::char_traits<char>::int_type current = std::char_traits<char>::eof();
/// whether the next get() call should just return current
bool next_unget = false;
/// the start position of the current token
position_t position;
/// the number of characters read
std::size_t chars_read = 0;
/// raw input token string (for error messages)
std::vector<char> token_string {};
@@ -1502,5 +1274,5 @@ scan_number_done:
/// the decimal point
const char decimal_point_char = '.';
};
} // namespace detail
} // namespace nlohmann
}
}

View File

@@ -9,9 +9,7 @@
#include <nlohmann/detail/exceptions.hpp>
#include <nlohmann/detail/macro_scope.hpp>
#include <nlohmann/detail/meta/is_sax.hpp>
#include <nlohmann/detail/input/input_adapters.hpp>
#include <nlohmann/detail/input/json_sax.hpp>
#include <nlohmann/detail/input/lexer.hpp>
#include <nlohmann/detail/value_t.hpp>
@@ -59,14 +57,11 @@ class parser
std::function<bool(int depth, parse_event_t event, BasicJsonType& parsed)>;
/// a parser reading from an input adapter
explicit parser(detail::input_adapter_t&& adapter,
explicit parser(detail::input_adapter_t adapter,
const parser_callback_t cb = nullptr,
const bool allow_exceptions_ = true)
: callback(cb), m_lexer(std::move(adapter)), allow_exceptions(allow_exceptions_)
{
// read first token
get_token();
}
: callback(cb), m_lexer(adapter), allow_exceptions(allow_exceptions_)
{}
/*!
@brief public parser interface
@@ -80,56 +75,31 @@ class parser
*/
void parse(const bool strict, BasicJsonType& result)
{
if (callback)
// read first token
get_token();
parse_internal(true, result);
result.assert_invariant();
// in strict mode, input must be completely read
if (strict)
{
json_sax_dom_callback_parser<BasicJsonType> sdp(result, callback, allow_exceptions);
sax_parse_internal(&sdp);
result.assert_invariant();
// in strict mode, input must be completely read
if (strict and (get_token() != token_type::end_of_input))
{
sdp.parse_error(m_lexer.get_position(),
m_lexer.get_token_string(),
parse_error::create(101, m_lexer.get_position(),
exception_message(token_type::end_of_input, "value")));
}
// in case of an error, return discarded value
if (sdp.is_errored())
{
result = value_t::discarded;
return;
}
// set top-level value to null if it was discarded by the callback
// function
if (result.is_discarded())
{
result = nullptr;
}
get_token();
expect(token_type::end_of_input);
}
else
// in case of an error, return discarded value
if (errored)
{
json_sax_dom_parser<BasicJsonType> sdp(result, allow_exceptions);
sax_parse_internal(&sdp);
result.assert_invariant();
result = value_t::discarded;
return;
}
// in strict mode, input must be completely read
if (strict and (get_token() != token_type::end_of_input))
{
sdp.parse_error(m_lexer.get_position(),
m_lexer.get_token_string(),
parse_error::create(101, m_lexer.get_position(),
exception_message(token_type::end_of_input, "value")));
}
// in case of an error, return discarded value
if (sdp.is_errored())
{
result = value_t::discarded;
return;
}
// set top-level value to null if it was discarded by the callback
// function
if (result.is_discarded())
{
result = nullptr;
}
}
@@ -141,317 +111,414 @@ class parser
*/
bool accept(const bool strict = true)
{
json_sax_acceptor<BasicJsonType> sax_acceptor;
return sax_parse(&sax_acceptor, strict);
}
// read first token
get_token();
template <typename SAX>
bool sax_parse(SAX* sax, const bool strict = true)
{
(void)detail::is_sax_static_asserts<SAX, BasicJsonType> {};
const bool result = sax_parse_internal(sax);
// strict mode: next byte must be EOF
if (result and strict and (get_token() != token_type::end_of_input))
if (not accept_internal())
{
return sax->parse_error(m_lexer.get_position(),
m_lexer.get_token_string(),
parse_error::create(101, m_lexer.get_position(),
exception_message(token_type::end_of_input, "value")));
return false;
}
return result;
// strict => last token must be EOF
return not strict or (get_token() == token_type::end_of_input);
}
private:
template <typename SAX>
bool sax_parse_internal(SAX* sax)
/*!
@brief the actual parser
@throw parse_error.101 in case of an unexpected token
@throw parse_error.102 if to_unicode fails or surrogate error
@throw parse_error.103 if to_unicode fails
*/
void parse_internal(bool keep, BasicJsonType& result)
{
// stack to remember the hierarchy of structured values we are parsing
// true = array; false = object
std::vector<bool> states;
// value to avoid a goto (see comment where set to true)
bool skip_to_state_evaluation = false;
// never parse after a parse error was detected
assert(not errored);
while (true)
// start with a discarded value
if (not result.is_discarded())
{
if (not skip_to_state_evaluation)
result.m_value.destroy(result.m_type);
result.m_type = value_t::discarded;
}
switch (last_token)
{
case token_type::begin_object:
{
// invariant: get_token() was called before each iteration
switch (last_token)
if (keep)
{
case token_type::begin_object:
if (callback)
{
if (JSON_UNLIKELY(not sax->start_object(std::size_t(-1))))
{
return false;
}
// closing } -> we are done
if (get_token() == token_type::end_object)
{
if (JSON_UNLIKELY(not sax->end_object()))
{
return false;
}
break;
}
// parse key
if (JSON_UNLIKELY(last_token != token_type::value_string))
{
return sax->parse_error(m_lexer.get_position(),
m_lexer.get_token_string(),
parse_error::create(101, m_lexer.get_position(),
exception_message(token_type::value_string, "object key")));
}
if (JSON_UNLIKELY(not sax->key(m_lexer.get_string())))
{
return false;
}
// parse separator (:)
if (JSON_UNLIKELY(get_token() != token_type::name_separator))
{
return sax->parse_error(m_lexer.get_position(),
m_lexer.get_token_string(),
parse_error::create(101, m_lexer.get_position(),
exception_message(token_type::name_separator, "object separator")));
}
// remember we are now inside an object
states.push_back(false);
// parse values
get_token();
continue;
keep = callback(depth++, parse_event_t::object_start, result);
}
case token_type::begin_array:
if (not callback or keep)
{
if (JSON_UNLIKELY(not sax->start_array(std::size_t(-1))))
{
return false;
}
// closing ] -> we are done
if (get_token() == token_type::end_array)
{
if (JSON_UNLIKELY(not sax->end_array()))
{
return false;
}
break;
}
// remember we are now inside an array
states.push_back(true);
// parse values (no need to call get_token)
continue;
// explicitly set result to object to cope with {}
result.m_type = value_t::object;
result.m_value = value_t::object;
}
}
case token_type::value_float:
// read next token
get_token();
// closing } -> we are done
if (last_token == token_type::end_object)
{
if (keep and callback and not callback(--depth, parse_event_t::object_end, result))
{
const auto res = m_lexer.get_number_float();
result.m_value.destroy(result.m_type);
result.m_type = value_t::discarded;
}
break;
}
if (JSON_UNLIKELY(not std::isfinite(res)))
// parse values
string_t key;
BasicJsonType value;
while (true)
{
// store key
if (not expect(token_type::value_string))
{
return;
}
key = m_lexer.move_string();
bool keep_tag = false;
if (keep)
{
if (callback)
{
return sax->parse_error(m_lexer.get_position(),
m_lexer.get_token_string(),
out_of_range::create(406, "number overflow parsing '" + m_lexer.get_token_string() + "'"));
BasicJsonType k(key);
keep_tag = callback(depth, parse_event_t::key, k);
}
else
{
if (JSON_UNLIKELY(not sax->number_float(res, m_lexer.get_string())))
{
return false;
}
break;
keep_tag = true;
}
}
case token_type::literal_false:
// parse separator (:)
get_token();
if (not expect(token_type::name_separator))
{
if (JSON_UNLIKELY(not sax->boolean(false)))
{
return false;
}
break;
return;
}
case token_type::literal_null:
// parse and add value
get_token();
value.m_value.destroy(value.m_type);
value.m_type = value_t::discarded;
parse_internal(keep, value);
if (JSON_UNLIKELY(errored))
{
if (JSON_UNLIKELY(not sax->null()))
{
return false;
}
break;
return;
}
case token_type::literal_true:
if (keep and keep_tag and not value.is_discarded())
{
if (JSON_UNLIKELY(not sax->boolean(true)))
{
return false;
}
break;
result.m_value.object->emplace(std::move(key), std::move(value));
}
case token_type::value_integer:
{
if (JSON_UNLIKELY(not sax->number_integer(m_lexer.get_number_integer())))
{
return false;
}
break;
}
case token_type::value_string:
{
if (JSON_UNLIKELY(not sax->string(m_lexer.get_string())))
{
return false;
}
break;
}
case token_type::value_unsigned:
{
if (JSON_UNLIKELY(not sax->number_unsigned(m_lexer.get_number_unsigned())))
{
return false;
}
break;
}
case token_type::parse_error:
{
// using "uninitialized" to avoid "expected" message
return sax->parse_error(m_lexer.get_position(),
m_lexer.get_token_string(),
parse_error::create(101, m_lexer.get_position(),
exception_message(token_type::uninitialized, "value")));
}
default: // the last token was unexpected
{
return sax->parse_error(m_lexer.get_position(),
m_lexer.get_token_string(),
parse_error::create(101, m_lexer.get_position(),
exception_message(token_type::literal_or_value, "value")));
}
}
}
else
{
skip_to_state_evaluation = false;
}
// we reached this line after we successfully parsed a value
if (states.empty())
{
// empty stack: we reached the end of the hierarchy: done
return true;
}
else
{
if (states.back()) // array
{
// comma -> next value
if (get_token() == token_type::value_separator)
get_token();
if (last_token == token_type::value_separator)
{
// parse a new value
get_token();
continue;
}
// closing ]
if (JSON_LIKELY(last_token == token_type::end_array))
{
if (JSON_UNLIKELY(not sax->end_array()))
{
return false;
}
// We are done with this array. Before we can parse a
// new value, we need to evaluate the new state first.
// By setting skip_to_state_evaluation to false, we
// are effectively jumping to the beginning of this if.
assert(not states.empty());
states.pop_back();
skip_to_state_evaluation = true;
continue;
}
else
{
return sax->parse_error(m_lexer.get_position(),
m_lexer.get_token_string(),
parse_error::create(101, m_lexer.get_position(),
exception_message(token_type::end_array, "array")));
}
}
else // object
{
// comma -> next value
if (get_token() == token_type::value_separator)
{
// parse key
if (JSON_UNLIKELY(get_token() != token_type::value_string))
{
return sax->parse_error(m_lexer.get_position(),
m_lexer.get_token_string(),
parse_error::create(101, m_lexer.get_position(),
exception_message(token_type::value_string, "object key")));
}
else
{
if (JSON_UNLIKELY(not sax->key(m_lexer.get_string())))
{
return false;
}
}
// parse separator (:)
if (JSON_UNLIKELY(get_token() != token_type::name_separator))
{
return sax->parse_error(m_lexer.get_position(),
m_lexer.get_token_string(),
parse_error::create(101, m_lexer.get_position(),
exception_message(token_type::name_separator, "object separator")));
}
// parse values
get_token();
continue;
}
// closing }
if (JSON_LIKELY(last_token == token_type::end_object))
if (not expect(token_type::end_object))
{
if (JSON_UNLIKELY(not sax->end_object()))
{
return false;
}
// We are done with this object. Before we can parse a
// new value, we need to evaluate the new state first.
// By setting skip_to_state_evaluation to false, we
// are effectively jumping to the beginning of this if.
assert(not states.empty());
states.pop_back();
skip_to_state_evaluation = true;
continue;
return;
}
else
break;
}
if (keep and callback and not callback(--depth, parse_event_t::object_end, result))
{
result.m_value.destroy(result.m_type);
result.m_type = value_t::discarded;
}
break;
}
case token_type::begin_array:
{
if (keep)
{
if (callback)
{
return sax->parse_error(m_lexer.get_position(),
m_lexer.get_token_string(),
parse_error::create(101, m_lexer.get_position(),
exception_message(token_type::end_object, "object")));
keep = callback(depth++, parse_event_t::array_start, result);
}
if (not callback or keep)
{
// explicitly set result to array to cope with []
result.m_type = value_t::array;
result.m_value = value_t::array;
}
}
// read next token
get_token();
// closing ] -> we are done
if (last_token == token_type::end_array)
{
if (callback and not callback(--depth, parse_event_t::array_end, result))
{
result.m_value.destroy(result.m_type);
result.m_type = value_t::discarded;
}
break;
}
// parse values
BasicJsonType value;
while (true)
{
// parse value
value.m_value.destroy(value.m_type);
value.m_type = value_t::discarded;
parse_internal(keep, value);
if (JSON_UNLIKELY(errored))
{
return;
}
if (keep and not value.is_discarded())
{
result.m_value.array->push_back(std::move(value));
}
// comma -> next value
get_token();
if (last_token == token_type::value_separator)
{
get_token();
continue;
}
// closing ]
if (not expect(token_type::end_array))
{
return;
}
break;
}
if (keep and callback and not callback(--depth, parse_event_t::array_end, result))
{
result.m_value.destroy(result.m_type);
result.m_type = value_t::discarded;
}
break;
}
case token_type::literal_null:
{
result.m_type = value_t::null;
break;
}
case token_type::value_string:
{
result.m_type = value_t::string;
result.m_value = m_lexer.move_string();
break;
}
case token_type::literal_true:
{
result.m_type = value_t::boolean;
result.m_value = true;
break;
}
case token_type::literal_false:
{
result.m_type = value_t::boolean;
result.m_value = false;
break;
}
case token_type::value_unsigned:
{
result.m_type = value_t::number_unsigned;
result.m_value = m_lexer.get_number_unsigned();
break;
}
case token_type::value_integer:
{
result.m_type = value_t::number_integer;
result.m_value = m_lexer.get_number_integer();
break;
}
case token_type::value_float:
{
result.m_type = value_t::number_float;
result.m_value = m_lexer.get_number_float();
// throw in case of infinity or NAN
if (JSON_UNLIKELY(not std::isfinite(result.m_value.number_float)))
{
if (allow_exceptions)
{
JSON_THROW(out_of_range::create(406, "number overflow parsing '" +
m_lexer.get_token_string() + "'"));
}
expect(token_type::uninitialized);
}
break;
}
case token_type::parse_error:
{
// using "uninitialized" to avoid "expected" message
if (not expect(token_type::uninitialized))
{
return;
}
break; // LCOV_EXCL_LINE
}
default:
{
// the last token was unexpected; we expected a value
if (not expect(token_type::literal_or_value))
{
return;
}
break; // LCOV_EXCL_LINE
}
}
if (keep and callback and not callback(depth, parse_event_t::value, result))
{
result.m_value.destroy(result.m_type);
result.m_type = value_t::discarded;
}
}
/*!
@brief the actual acceptor
@invariant 1. The last token is not yet processed. Therefore, the caller
of this function must make sure a token has been read.
2. When this function returns, the last token is processed.
That is, the last read character was already considered.
This invariant makes sure that no token needs to be "unput".
*/
bool accept_internal()
{
switch (last_token)
{
case token_type::begin_object:
{
// read next token
get_token();
// closing } -> we are done
if (last_token == token_type::end_object)
{
return true;
}
// parse values
while (true)
{
// parse key
if (last_token != token_type::value_string)
{
return false;
}
// parse separator (:)
get_token();
if (last_token != token_type::name_separator)
{
return false;
}
// parse value
get_token();
if (not accept_internal())
{
return false;
}
// comma -> next value
get_token();
if (last_token == token_type::value_separator)
{
get_token();
continue;
}
// closing }
return (last_token == token_type::end_object);
}
}
case token_type::begin_array:
{
// read next token
get_token();
// closing ] -> we are done
if (last_token == token_type::end_array)
{
return true;
}
// parse values
while (true)
{
// parse value
if (not accept_internal())
{
return false;
}
// comma -> next value
get_token();
if (last_token == token_type::value_separator)
{
get_token();
continue;
}
// closing ]
return (last_token == token_type::end_array);
}
}
case token_type::value_float:
{
// reject infinity or NAN
return std::isfinite(m_lexer.get_number_float());
}
case token_type::literal_false:
case token_type::literal_null:
case token_type::literal_true:
case token_type::value_integer:
case token_type::value_string:
case token_type::value_unsigned:
return true;
default: // the last token was unexpected
return false;
}
}
@@ -461,17 +528,31 @@ class parser
return (last_token = m_lexer.scan());
}
std::string exception_message(const token_type expected, const std::string& context)
/*!
@throw parse_error.101 if expected token did not occur
*/
bool expect(token_type t)
{
std::string error_msg = "syntax error ";
if (not context.empty())
if (JSON_UNLIKELY(t != last_token))
{
error_msg += "while parsing " + context + " ";
errored = true;
expected = t;
if (allow_exceptions)
{
throw_exception();
}
else
{
return false;
}
}
error_msg += "- ";
return true;
}
[[noreturn]] void throw_exception() const
{
std::string error_msg = "syntax error - ";
if (last_token == token_type::parse_error)
{
error_msg += std::string(m_lexer.get_error_message()) + "; last read: '" +
@@ -487,18 +568,24 @@ class parser
error_msg += "; expected " + std::string(lexer_t::token_type_name(expected));
}
return error_msg;
JSON_THROW(parse_error::create(101, m_lexer.get_position(), error_msg));
}
private:
/// current level of recursion
int depth = 0;
/// callback function
const parser_callback_t callback = nullptr;
/// the type of the last read token
token_type last_token = token_type::uninitialized;
/// the lexer
lexer_t m_lexer;
/// whether a syntax error occurred
bool errored = false;
/// possible reason for the syntax error
token_type expected = token_type::uninitialized;
/// whether to throw exceptions in case of errors
const bool allow_exceptions = true;
};
} // namespace detail
} // namespace nlohmann
}
}

View File

@@ -1,27 +0,0 @@
#pragma once
#include <cstddef> // size_t
namespace nlohmann
{
namespace detail
{
/// struct to capture the start position of the current token
struct position_t
{
/// the total number of characters read
std::size_t chars_read_total = 0;
/// the number of characters read in the current line
std::size_t chars_read_current_line = 0;
/// the number of lines read
std::size_t lines_read = 0;
/// conversion to size_t to preserve SAX interface
constexpr operator size_t() const
{
return chars_read_total;
}
};
}
}

View File

@@ -21,5 +21,5 @@ template<typename BasicJsonType> struct internal_iterator
/// generic iterator for all other types
primitive_iterator_t primitive_iterator {};
};
} // namespace detail
} // namespace nlohmann
}
}

View File

@@ -8,7 +8,7 @@
#include <nlohmann/detail/iterators/internal_iterator.hpp>
#include <nlohmann/detail/iterators/primitive_iterator.hpp>
#include <nlohmann/detail/macro_scope.hpp>
#include <nlohmann/detail/meta/cpp_future.hpp>
#include <nlohmann/detail/meta.hpp>
#include <nlohmann/detail/value_t.hpp>
namespace nlohmann
@@ -31,7 +31,7 @@ This class implements a both iterators (iterator and const_iterator) for the
@requirement The class satisfies the following concept requirements:
-
[BidirectionalIterator](https://en.cppreference.com/w/cpp/named_req/BidirectionalIterator):
[BidirectionalIterator](http://en.cppreference.com/w/cpp/concept/BidirectionalIterator):
The iterator that can be moved can be moved in both directions (i.e.
incremented and decremented).
@@ -583,7 +583,7 @@ class iter_impl
@brief return the key of an object iterator
@pre The iterator is initialized; i.e. `m_object != nullptr`.
*/
const typename object_t::key_type& key() const
typename object_t::key_type key() const
{
assert(m_object != nullptr);
@@ -610,5 +610,5 @@ class iter_impl
/// the actual iterator of the associated instance
internal_iterator<typename std::remove_const<BasicJsonType>::type> m_it;
};
} // namespace detail
} // namespace nlohmann
}
}

View File

@@ -2,7 +2,6 @@
#include <cstddef> // size_t
#include <string> // string, to_string
#include <iterator> // input_iterator_tag
#include <nlohmann/detail/value_t.hpp>
@@ -17,24 +16,11 @@ template<typename IteratorType> class iteration_proxy
/// helper class for iteration
class iteration_proxy_internal
{
public:
using difference_type = std::ptrdiff_t;
using value_type = iteration_proxy_internal;
using pointer = iteration_proxy_internal*;
using reference = iteration_proxy_internal&;
using iterator_category = std::input_iterator_tag;
private:
/// the iterator
IteratorType anchor;
/// an index for arrays (used to create key names)
std::size_t array_index = 0;
/// last stringified array index
mutable std::size_t array_index_last = 0;
/// a string representation of the array index
mutable std::string array_index_str = "0";
/// an empty string (to return a reference for primitive values)
const std::string empty_str = "";
public:
explicit iteration_proxy_internal(IteratorType it) noexcept : anchor(it) {}
@@ -54,12 +40,6 @@ template<typename IteratorType> class iteration_proxy
return *this;
}
/// equality operator (needed for InputIterator)
bool operator==(const iteration_proxy_internal& o) const noexcept
{
return anchor == o.anchor;
}
/// inequality operator (needed for range-based for)
bool operator!=(const iteration_proxy_internal& o) const noexcept
{
@@ -67,7 +47,7 @@ template<typename IteratorType> class iteration_proxy
}
/// return key of the iterator
const std::string& key() const
std::string key() const
{
assert(anchor.m_object != nullptr);
@@ -75,14 +55,7 @@ template<typename IteratorType> class iteration_proxy
{
// use integer array index as key
case value_t::array:
{
if (array_index != array_index_last)
{
array_index_str = std::to_string(array_index);
array_index_last = array_index;
}
return array_index_str;
}
return std::to_string(array_index);
// use key from the object
case value_t::object:
@@ -90,7 +63,7 @@ template<typename IteratorType> class iteration_proxy
// use an empty key for all primitive types
default:
return empty_str;
return "";
}
}
@@ -121,5 +94,5 @@ template<typename IteratorType> class iteration_proxy
return iteration_proxy_internal(container.end());
}
};
} // namespace detail
} // namespace nlohmann
}
}

View File

@@ -21,10 +21,10 @@ create @ref const_reverse_iterator).
@requirement The class satisfies the following concept requirements:
-
[BidirectionalIterator](https://en.cppreference.com/w/cpp/named_req/BidirectionalIterator):
[BidirectionalIterator](http://en.cppreference.com/w/cpp/concept/BidirectionalIterator):
The iterator that can be moved can be moved in both directions (i.e.
incremented and decremented).
- [OutputIterator](https://en.cppreference.com/w/cpp/named_req/OutputIterator):
- [OutputIterator](http://en.cppreference.com/w/cpp/concept/OutputIterator):
It is possible to write to the pointed-to element (only if @a Base is
@ref iterator).
@@ -41,11 +41,11 @@ class json_reverse_iterator : public std::reverse_iterator<Base>
using reference = typename Base::reference;
/// create reverse iterator from iterator
explicit json_reverse_iterator(const typename base_iterator::iterator_type& it) noexcept
json_reverse_iterator(const typename base_iterator::iterator_type& it) noexcept
: base_iterator(it) {}
/// create reverse iterator from base class
explicit json_reverse_iterator(const base_iterator& it) noexcept : base_iterator(it) {}
json_reverse_iterator(const base_iterator& it) noexcept : base_iterator(it) {}
/// post-increment (it++)
json_reverse_iterator const operator++(int)
@@ -115,5 +115,5 @@ class json_reverse_iterator : public std::reverse_iterator<Base>
return it.operator * ();
}
};
} // namespace detail
} // namespace nlohmann
}
}

View File

@@ -87,7 +87,7 @@ class primitive_iterator_t
primitive_iterator_t const operator++(int) noexcept
{
auto result = *this;
++m_it;
m_it++;
return result;
}
@@ -100,7 +100,7 @@ class primitive_iterator_t
primitive_iterator_t const operator--(int) noexcept
{
auto result = *this;
--m_it;
m_it--;
return result;
}
@@ -116,5 +116,5 @@ class primitive_iterator_t
return *this;
}
};
} // namespace detail
} // namespace nlohmann
}
}

View File

@@ -59,7 +59,7 @@ class json_pointer
@since version 2.0.0
*/
std::string to_string() const
std::string to_string() const noexcept
{
return std::accumulate(reference_tokens.begin(), reference_tokens.end(),
std::string{},
@@ -114,7 +114,7 @@ class json_pointer
}
/// return whether pointer points to the root document
bool is_root() const noexcept
bool is_root() const
{
return reference_tokens.empty();
}
@@ -506,11 +506,11 @@ class json_pointer
std::size_t slash = reference_string.find_first_of('/', 1),
// set the beginning of the first reference token
start = 1;
// we can stop if start == 0 (if slash == std::string::npos)
// we can stop if start == string::npos+1 = 0
start != 0;
// set the beginning of the next reference token
// (will eventually be 0 if slash == std::string::npos)
start = (slash == std::string::npos) ? 0 : slash + 1,
start = slash + 1,
// find next slash
slash = reference_string.find_first_of('/', start))
{
@@ -566,7 +566,7 @@ class json_pointer
{}
}
/// escape "~" to "~0" and "/" to "~1"
/// escape "~"" to "~0" and "/" to "~1"
static std::string escape(std::string s)
{
replace_substring(s, "~", "~0");
@@ -693,4 +693,4 @@ class json_pointer
/// the reference tokens
std::vector<std::string> reference_tokens;
};
} // namespace nlohmann
}

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