RegExp

Create a regular expression from a regular expression string.

Installation

npm install @stdlib/utils-regexp-from-string

Usage

var reFromString = require( '@stdlib/utils-regexp-from-string' );

reFromString( str )

Parses a regular expression string and returns a new regular expression.

var re = reFromString( '/beep/' );
// returns /beep/

Notes

• Provided strings must be properly escaped.

  // Unescaped:
  var re = reFromString( '/\w+/' );
  // returns /w+/
  
  // Escaped:
  re = reFromString( '/\\w+/' );
  // returns /\w+/

Examples

var reFromString = require( '@stdlib/utils-regexp-from-string' );

var re = reFromString( '/beep/' );
// returns /beep/

re = reFromString( '/[A-Z]*/' );
// returns /[A-Z]*/

re = reFromString( '/\\\\\\\//ig' );
// returns /\\\//gi

re = reFromString( '/[A-Z]{0,}/' );
// returns /[A-Z]{0,}/

re = reFromString( '/^boop$/' );
// returns /^boop$/

re = reFromString( '/(?:.*)/' );
// returns /(?:.*)/

re = reFromString( '/(?:beep|boop)/' );
// returns /(?:beep|boop)/

re = reFromString( '/\\w+/' );
// returns /\w+/

Notice

This package is part of stdlib, a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.

Community

License

See LICENSE.

Copyright

Copyright © 2016-2024. The Stdlib Authors.