README.md

RegJSParser

This is a fork of jviereck/regjsparser with some additional patches. The end goal is to merge these patches upstream.

Parsing the JavaScript's RegExp in JavaScript.

Installation

npm install @babel/regjsparser

Usage

var parse = require('@babel/regjsparser').parse;

var parseTree = parse('^a'); // /^a/
console.log(parseTree);

// Toggle on/off additional features:
var parseTree = parse('^a', '', {
  // SEE: https://github.com/jviereck/regjsparser/pull/78
  unicodePropertyEscape: true,

  // SEE: https://github.com/jviereck/regjsparser/pull/83
  namedGroups: true,

  // SEE: https://github.com/jviereck/regjsparser/pull/89
  lookbehind: true
});
console.log(parseTree);

Testing

To run the tests, run the following command:

npm test

To create a new reference file, execute…

node test/update-fixtures.js

…from the repo top directory.