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README.md
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README.md
@ -7,17 +7,20 @@ pairs.
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[json-org]: http://json.org/
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JsonCpp is a C++ library that allows manipulating JSON values, including
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[JsonCpp][] is a C++ library that allows manipulating JSON values, including
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serialization and deserialization to and from strings. It can also preserve
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existing comment in unserialization/serialization steps, making it a convenient
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format to store user input files.
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[JsonCpp]: http://open-source-parsers.github.io/jsoncpp-docs/doxygen/index.html
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## A note on backward-compatibility
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Very soon, we are switching to C++11 only. For older compilers, try the `pre-C++11` branch.
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* `1.y.z` is built with C++11.
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* `0.8.z` can be used with older compilers.
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* Major versions maintain binary-compatibility.
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Using JsonCpp in your project
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-----------------------------
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The recommended approach to integrating JsonCpp in your project is to build
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the amalgamated source (a single `.cpp` file) with your own build system. This
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ensures consistency of compilation flags and ABI compatibility. See the section
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@ -28,13 +31,11 @@ should be included as follow:
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#include <json/json.h>
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If JsonCpp was build as a dynamic library on Windows, then your project needs to
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If JsonCpp was built as a dynamic library on Windows, then your project needs to
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define the macro `JSON_DLL`.
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Building and testing with new CMake
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-----------------------------------
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Building and testing with CMake
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-------------------------------
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[CMake][] is a C++ Makefiles/Solution generator. It is usually available on most
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Linux system as package. On Ubuntu:
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@ -75,10 +76,8 @@ the `-G` option).
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By default CMake hides compilation commands. This can be modified by specifying
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`-DCMAKE_VERBOSE_MAKEFILE=true` when generating makefiles.
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Building and testing with SCons
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-------------------------------
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**Note:** The SCons-based build system is deprecated. Please use CMake; see the
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section above.
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@ -107,14 +106,7 @@ If you are building with Microsoft Visual Studio 2008, you need to set up the
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environment by running `vcvars32.bat` (e.g. MSVC 2008 command prompt) before
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running SCons.
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Running the tests manually
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--------------------------
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Note that test can be run using SCons using the `check` target:
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scons platform=$PLATFORM check
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# Running the tests manually
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You need to run tests manually only if you are troubleshooting an issue.
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In the instructions below, replace `path/to/jsontest` with the path of the
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@ -137,20 +129,21 @@ In the instructions below, replace `path/to/jsontest` with the path of the
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# You can run the tests using valgrind:
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python rununittests.py --valgrind path/to/test_lib_json
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## Running the tests using scons
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Note that tests can be run using SCons using the `check` target:
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scons platform=$PLATFORM check
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Building the documentation
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--------------------------
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Run the Python script `doxybuild.py` from the top directory:
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python doxybuild.py --doxygen=$(which doxygen) --open --with-dot
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See `doxybuild.py --help` for options.
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Generating amalgamated source and header
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----------------------------------------
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JsonCpp is provided with a script to generate a single header and a single
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source file to ease inclusion into an existing project. The amalgamated source
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can be generated at any time by running the following command from the
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@ -172,10 +165,8 @@ The amalgamated sources are generated by concatenating JsonCpp source in the
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correct order and defining the macro `JSON_IS_AMALGAMATION` to prevent inclusion
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of other headers.
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Adding a reader/writer test
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---------------------------
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To add a test, you need to create two files in test/data:
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* a `TESTNAME.json` file, that contains the input document in JSON format.
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@ -195,10 +186,8 @@ The `TESTNAME.expected` file format is as follows:
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See the examples `test_complex_01.json` and `test_complex_01.expected` to better
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understand element paths.
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Understanding reader/writer test output
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---------------------------------------
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When a test is run, output files are generated beside the input test files.
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Below is a short description of the content of each file:
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@ -215,10 +204,7 @@ Below is a short description of the content of each file:
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* `test_complex_01.process-output`: `jsontest` output, typically useful for
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understanding parsing errors.
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License
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-------
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See the `LICENSE` file for details. In summary, JsonCpp is licensed under the
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MIT license, or public domain if desired and recognized in your jurisdiction.
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@ -152,6 +152,7 @@ Basically JsonCpp is licensed under MIT license, or public domain if desired
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and recognized in your jurisdiction.
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\author Baptiste Lepilleur <blep@users.sourceforge.net> (originator)
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\author Christopher Dunn <cdunn2001@gmail.com> (primary maintainer)
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\version \include version
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We make strong guarantees about binary-compatibility, consistent with
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<a href="http://apr.apache.org/versioning.html">the Apache versioning scheme</a>.
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