regexp2
v1.2.1
Published
Regex Parser (fork from regexp)
Downloads
13
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regexp
Regex Parser (fork from regexp)
Regex parser based on descriptions in http://www.javascriptkit.com/javatutors/redev2.shtml
Installation
npm install regexp2
Usage
- other demo
var regexp = require('regexp2').parse;
var res = regexp('[a-z]+');
import regexp from 'regexp2';
var res = regexp(/[a-z]+/);
import { parse } from 'regexp2';
const regexp = parse;
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