NOTE: This is now the authoritative source for libpbnjson; isis-browser/pbnjson should be considered read-only.
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Palm's Better Native JSON library


A JSON engine, implemented as a pair of libraries with APIs for easier C and C++ abstraction over the core PBNJSON library.


Below are the tools and libraries (and their minimum versions) required to build libpbnjson:

  • boost-program-options 1.48
  • cmake (version required by cmake-modules-webos)
  • gcc 4.6.3
  • g++ 4.6.3
  • glib 2.30.0
  • gmp 5.0.2
  • gperf 3.0.3
  • lemon 3.7.9
  • make (any version)
  • openwebos/cmake-modules-webos 1.0.0 RC3
  • openwebos/PmLogLib-headers 3.0.0
  • pkg-config 0.26
  • uriparser 0.7.5
  • yajl 1.0.12 or 2.0.4

Below is the component (and its minimum version) required to use key-value logging:

  • openwebos/PmLogLib 3.0.0

How to Build on Linux


Once you have downloaded the source, enter the following to build it (after changing into the directory under which it was downloaded):

$ mkdir BUILD
$ cd BUILD
$ cmake ..
$ make
$ sudo make install

The directory under which the files are installed defaults to /usr/local/webos. You can install them elsewhere by supplying a value for WEBOS_INSTALL_ROOT when invoking cmake. For example:

$ cmake -D WEBOS_INSTALL_ROOT:PATH=$HOME/projects/openwebos ..
$ make
$ make install

will install the files in subdirectories of $HOME/projects/openwebos.

Specifying WEBOS_INSTALL_ROOT also causes pkg-config to look in that tree first before searching the standard locations. You can specify additional directories to be searched prior to this one by setting the PKG_CONFIG_PATH environment variable.

If not specified, WEBOS_INSTALL_ROOT defaults to /usr/local/webos.

To configure for a debug build, enter:


To see a list of the make targets that cmake has generated, enter:

$ make help

Please note, to build library, you need to have PmLogLib headers. To install them, use corresponding cmake flags for PmlogLib.


From the directory where you originally ran make install, enter:

$ [sudo] make uninstall

You will need to use sudo if you did not specify WEBOS_INSTALL_ROOT.

Generating Documentation

The tools required to generate the documentation are:

  • doxygen
  • graphviz 2.26.3

To generate the documentation, add -D WITH_DOCS:BOOL=TRUE to the cmake command line and make the docs target:

$ cmake -D WITH_DOCS:BOOL=TRUE <other-args> ..
$ make docs

To view the generated HTML documentation, point your browser to Documentation/pbnjson/html/*/index.html


To enable key-value logging with PmLogLib, user application can be linked with PmLogLib library.

Copyright and License Information

Unless otherwise specified, all content, including all source code files and documentation files in this repository are:

Copyright (c) 2009-2013 LG Electronics, Inc.

Unless otherwise specified or set forth in the NOTICE file, all content, including all source code files and documentation files in this repository are: Licensed under the Apache License, Version 2.0 (the "License"); you may not use this content except in compliance with the License. You may obtain a copy of the License at

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.