skip-regex

skipRegex

Micro parser for detection of literal regexes.

Install

npm install skip-regex --save

Two formats:

• CommonJS (ES5) for node and browserify-like bundlers.
• ES6 module (ES6 untranspiled) for Rollup and the like.

How does it Works?

The start position must point to the first slash inside source (there's no error detection of this).

From there, sourceRegex will find with 99% accuracy the end of a regular literal expression from a start position in the given string.

The returned value is the position of the character following the regex, or start+1 if this is not a regex.

Example

import skipRegex from 'skip-regex'

//...
const start = source.indexOf('/')

if (~start) {
  const end = skipRegex(source, start)

  if (end > start + 1) { //looks like a regex
    const regex = source.slice(start, end)
    console.log(`Found regex ${regex} at position ${start}!`)
  }
}

Licence

MIT