EXIP provides a general purpose EXI processing library that is efficient and easy to use for both: embedded platforms and desktop/server applications. The project strives to build large user community as well as committed and eager development team. The purpose of this development documentation is to help the C developers interested in the project to easily get the knowledge they need to work and enhance the code of the library. If you are only interested in using the library see the EXIP User Guide available from the project web site.

Visit the EXIP GitHub repository to ask questions, submit issues, or contribute.

The main feature of the code is its modularity. Below are listed the main components of the codebase (each has a separate Makefile build and uses Check Unit Testing Framework for testing):

Modules dependencies:
==========================================================================================
|             Module              |                      Dependencies                    |
==========================================================================================
|         @ref common             |                           N/A
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|      @ref streamIO              |                         common
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|     @ref stringTables           |                         common
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|        @ref grammar             |             common, streamIO, stringTables
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|      @ref contentIO             |         common, streamIO, stringTables, grammar
------------------------------------------------------------------------------------------
|    @ref grammarGen              |   common, streamIO, stringTables, grammar, contentIO
------------------------------------------------------------------------------------------

More information about Efficient XML Interchange format can be found at http://www.w3.org/TR/exi/

How do I get involved in the EXIP development?

The code of the library is in active development. Filing a detailed bug report or submitting a pull request helps both yourself and the project. The culture of the EXIP development is based on the **"Help yourself and others will help you"** principle.

Getting started

Here are some basic steps for developers interested in contributing to the project:

0. Read the EXIP User Guide

Start using the library in your applications
Identify bugs, design improvements, or features you would like to see in the library.
Browse through the EXIP development documentation (i.e. the Doxygen pages) and AGENTS.md to get deeper knowledge on the details of the problem
Implement the fix and create a pull request
If the contribution follows the project coding rules and is approved, it will be merged. Note that your contribution will be distributed under the same Apache License, Version 2.0 used for EXIP (see below)
Being part of the project development allows you to influence the direction of the project, set priorities on fixes and improvements, and contribute to a growing community.

Contributions, copyrights and licenses

All contributions are licensed under the Apache License, Version 2.0 used by the EXIP project. See the LICENSE.txt file for full license terms.

Last updated: Jun 11, 2026
Authors: Rumen Kyusakov, Eric K Richardson