---
title: Custom Language Support Tutorial
---

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INITIAL_SOURCE https://confluence.jetbrains.com/display/IntelliJIDEA/Custom+Language+Support
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# {{ page.title }}

In this tutorial we will add basic support for
[.properties](http://en.wikipedia.org/wiki/.properties)
language and it's usages within Java code.

We will generate parser and PSI elements using
[Grammar-Kit](https://github.com/JetBrains/Grammar-Kit) plugin.
The lexer class will be generated with
[JFlex](http://jflex.de/).

This a step-by-step tutorial and it requires performing every step:

*  [Prerequisites](TODO)
*  [Language and File Type](TODO)
*  [Grammar and Parser](TODO)
*  [Lexer and Parser Definition](TODO)
*  [Syntax Highlighter and Color Settings Page](TODO)
*  [PSI Helpers and Utilities](TODO)
*  [Annotator](TODO)
*  [Line Marker Provider](TODO)
*  [Completion Contributor](TODO)
*  [Reference Contributor](TODO)
*  [Find Usages Provider](TODO)
*  [Folding Builder](TODO)
*  [Go To Symbol Contributor](TODO)
*  [Structure View Factory](TODO)
*  [Formatter](TODO)
*  [Code Style Settings](TODO)
*  [Commenter](TODO)
*  [Quick Fix](TODO)

The final code can be found on
[GitHub](http://github.com/cheptsov/SimplePlugin).

For additional information check out the
[official documentation](http://confluence.jetbrains.net/display/IDEADEV/PluginDevelopment)