Package Exports

genex

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (genex) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

genex

Counts and expands any given regular expression into all the possible strings that it would be able to match.

Install

npm i genex --save

Usage

const genex = require('genex');
const pattern = genex(/(foo|bar|baz){1,2}|snafu/);

// 13
console.log(pattern.count());

/*
[
  'foo', 'foofoo', 'foobar', 'foobaz',
  'bar', 'barfoo', 'barbar', 'barbaz',
  'baz', 'bazfoo', 'bazbar', 'bazbaz',
  'snafu'
]
*/
console.log(pattern.generate());

The generate() method also accepts an optional callback:

pattern.generate((value) => {
  if (value.startsWith('foo') !== true) {
    return false; // breaks iteration
  }

  console.log(value); // 'foo', 'foofoo', 'foobar', 'foobaz',
});

License

MIT