@stdlib/regexp/regexp/README.md

Regular expressions.

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# reRegExp

> [Regular expression][regexp] to parse a [regular expression][regexp] string.

<section class="usage">

## Usage

```javascript
var reRegExp = require( '@stdlib/regexp/regexp' );
```

#### reRegExp()

Returns a [regular expression][regexp] to parse a [regular expression][regexp] `string`. 

<!-- eslint-disable stdlib/doctest -->

```javascript
var RE_REGEXP = reRegExp();
var bool = RE_REGEXP.test( '/^beep$/' );
// returns true

bool = RE_REGEXP.test( '' );
// returns false

var parts = RE_REGEXP.exec( '/^.*$/ig' );
// returns [ '/^.*$/ig', '^.*$', 'ig', 'index': 0, 'input': '/^.*$/ig' ]
```

[Regular expression][regexp] strings should be escaped.

<!-- eslint-disable no-useless-escape -->

```javascript
var RE_REGEXP = reRegExp();

var bool = RE_REGEXP.test( '/^\/([^\/]+)\/(.*)$/' );
// returns false

bool = RE_REGEXP.test( '/^\\/([^\\/]+)\\/(.*)$/' );
// returns true
```

#### reRegExp.REGEXP

[Regular expression][regexp] to parse a [regular expression][regexp] `string`. 

```javascript
var bool = reRegExp.REGEXP.test( '/^beep$/' );
// returns true
```

</section>

<!-- /.usage -->

<section class="examples">

## Examples

<!-- eslint-disable no-useless-escape -->

<!-- eslint no-undef: "error" -->

```javascript
var reRegExp = require( '@stdlib/regexp/regexp' );

var RE_REGEXP = reRegExp();

var bool = RE_REGEXP.test( '/beep/' );
// returns true

bool = RE_REGEXP.test( '/^.*$/ig' );
// returns true

bool = RE_REGEXP.test( '/^\\/([^\\/]+)\\/(.*)$/' );
// returns true

bool = RE_REGEXP.test( '/^\/([^\/]+)\/(.*)$/' );
// returns false

bool = RE_REGEXP.test( '/boop' );
// returns false

bool = RE_REGEXP.test( '' );
// returns false
```

</section>

<!-- /.examples -->

<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->

<section class="related">

* * *

## See Also

-   <span class="package-name">[`@stdlib/utils/regexp-from-string`][@stdlib/utils/regexp-from-string]</span><span class="delimiter">: </span><span class="description">create a regular expression from a regular expression string.</span>

</section>

<!-- /.related -->

<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->

<section class="links">

[regexp]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions

<!-- <related-links> -->

[@stdlib/utils/regexp-from-string]: https://www.npmjs.com/package/@stdlib/utils-regexp-from-string

<!-- </related-links> -->

</section>

<!-- /.links -->