JSON (JavaScript Object Notation) is a lightweight data-interchange format. It can represents integer, real number, string, an ordered sequence of value, and a collection of name/value pairs.

QJson is a qt-based library that maps JSON data to QVariant objects. JSON arrays will be mapped to QVariantList instances, while JSON's objects will be mapped to QVariantMap.

QJson requires:

• Qt 4.5 or greater
• cmake 2.6 or greater

Some possible cmake options:

• -DCMAKE_BUILD_TYPE=DEBUG: enables some debug output (other than making easier to debug the code)
• -DQJSON_BUILD_TESTS=yes or -DKDE4_BUILD_TESTS=yes: builds the unit tests
• -DCMAKE_INSTALL_PREFIX=${HOME}/testinstall: install qjson in a custom directory
• -DCMAKE_INCLUDE_PATH=${HOME}/testinstall/include: include a custom include directory
• -DCMAKE_LIBRARY_PATH=${HOME}/testinstall/lib: include a custom library directory
• -DLIB_DESTINATION=lib64: if you have a 64 bit system with separate libraries for 64 bit libraries
• -DQJSON_VERBOSE_DEBUG_OUTPUT:BOOL=ON: more debugging statements are generated by the parser. It's useful only if you are trying to fix the bison grammar.

For Unix/Linux/Mac:

mkdir build
cd build
cmake -DCMAKE_INSTALL_PREFIX=_preferred_path_ ..
make
make install
/sbin/ldconfig #if necessary

This library is licensed under the Lesser GNU General Public License version 2.1. See the COPYING.lib file for more information.

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• Project Lead/Maintainer (2008-current): Flavio Castelli.