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readme.md

regexp

Regex parser based on descriptions in http://www.javascriptkit.com/javatutors/redev2.shtml

Build Status Dependency Status NPM version

Installation

npm install regexp

Usage

var regexp = require('regexp')
var res = regexp('[a-z]+')
assert.deepEqual(res, { type: 'match',
  offset: 0,
  text: '[a-z]+',
  body:
   [ { type: 'quantified',
       offset: 0,
       text: '[a-z]+',
       body:
        { type: 'charset',
          offset: 0,
          text: '[a-z]',
          invert: false,
          body:
           [ { type: 'range',
               offset: 1,
               text: 'a-z',
               start: 'a',
               end: 'z' } ] },
       quantifier:
        { type: 'quantifier',
          offset: 5,
          text: '+',
          min: 1,
          max: Infinity,
          greedy: true } } ] })

Contributing

To run tests:

$ npm install
$ npm test

This will also automatically compile index.js.

The key source files are src/grammer.pegjs which is compiled using pegjs and src/index.js which is a CommonJS module with a special additional pseudo import statement.

License

MIT

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Regular Expression Parser in Pure JS

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