PEG.js is a simple parser generator for JavaScript that produces fast parsers with excellent error reporting. You can use it to process complex data or computer languages ​​and build transformers, interpreters, compilers and other tools easily.

PEG.js is still very much work in progress. There are no compatibility guarantees until version 1.0

features

• Simple and expressive grammar syntax
• Integrates both lexical and syntactical analysis
• Parsers have excellent error reporting out of the box
• Based on parsing expression grammar formalism - more powerful than traditional LL( k ) and LR( k ) parsers
• Usable from your browser , from the command line, or via JavaScript API

documentation

• Getting Started
• Installation
• Generating a Parser
• Using the Parser
• Grammar Syntax and Semantics
• JavaScript API
• Plugins
• Compatibility
• Development
• Useful Links

license

Released under the MIT License .

Copyright (c) 2010-2016 David Majda
Copyright (c) 2017+ Futago-za Ryuu