Custom Language Support Tutorial

In this tutorial we will add support for a .properties language and its usages within Java code.

This a step-by-step tutorial, and it requires completing each step, in order:

• 1. Prerequisites
• 2. Language and File Type
• 3. Grammar and Parser
• 4. Lexer and Parser Definition
• 5. Syntax Highlighter and Color Settings Page
• 6. PSI Helpers and Utilities
• 7. Annotator
• 8. Line Marker Provider
• 9. Completion Contributor
• 10. Reference Contributor
• 11. Find Usages Provider
• 12. Folding Builder
• 13. Go To Symbol Contributor
• 14. Structure View Factory
• 15. Formatter
• 16. Code Style Settings
• 17. Commenter
• 18. Quick Fix