Chevrotain is a blazing fast and feature rich Parser Building Toolkit for JavaScript. It can be used to build parsers/compilers/interpreters for various use cases ranging from simple configuration files, to full fledged programing languages.
A more in depth description of Chevrotain can be found in this great article on: Parsing in JavaScript: Tools and Libraries.
It is important to note that Chevrotain is NOT a parser generator. It solves the same kind of problems as a parser generator, just without any code generation. Chevrotain Grammars are pure code which can be created/debugged/edited as any other pure code without requiring any new tools or processes.
- npm:
npm install chevrotain - Browser:
The npm package contains Chevrotain as concatenated and minified files ready for use in a browser.
These can also be accessed directly via UNPKG in a script tag.
- Latest:
https://unpkg.com/chevrotain/lib/chevrotain.jshttps://unpkg.com/chevrotain/lib/chevrotain.min.jshttps://unpkg.com/chevrotain/lib_esm/chevrotain.mjshttps://unpkg.com/chevrotain/lib_esm/chevrotain.min.mjs
- Explicit version number:
https://unpkg.com/chevrotain@9.1.0/lib/chevrotain.jshttps://unpkg.com/chevrotain@9.1.0/lib/chevrotain.min.jshttps://unpkg.com/chevrotain@9.1.0/lib_esm/chevrotain.mjshttps://unpkg.com/chevrotain@9.1.0/lib_esm/chevrotain.min.mjs
- Latest:
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FAQ.
There is a single dependency (outside this monorepo) to regexp-to-ast library. This dependency is included in the bundled artifacts, for ease of consumption in browsers.
Chevrotain will run on any modern JavaScript ES2015 runtime. That includes nodejs maintenance/active/current version, modern major browsers, but not legacy ES5.1 runtimes such as IE11.
- Uses UMD to work with common module loaders (browser global / amd / commonjs).
Contributions are greatly appreciated. See CONTRIBUTING.md for details.
Some interesting samples: