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@stdlib/utils-regexp-from-string

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@stdlib/utils-regexp-from-string

Create a regular expression from a regular expression string.


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About stdlib...

We believe in a future in which the web is a preferred environment for numerical computation. To help realize this future, we've built stdlib. stdlib is a standard library, with an emphasis on numerical and scientific computation, written in JavaScript (and C) for execution in browsers and in Node.js.

The library is fully decomposable, being architected in such a way that you can swap out and mix and match APIs and functionality to cater to your exact preferences and use cases.

When you use stdlib, you can be absolutely certain that you are using the most thorough, rigorous, well-written, studied, documented, tested, measured, and high-quality code out there.

To join us in bringing numerical computing to the web, get started by checking us out on GitHub, and please consider financially supporting stdlib. We greatly appreciate your continued support!

RegExp

NPM version Build Status Coverage Status

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.

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License

See LICENSE.

Copyright © 2016-2024. The Stdlib Authors.

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Package last updated on 27 Jul 2024

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