npm package: @stdlib/regexp-extended-length-path
Description: Regular expression to detect an extended-length path.
Author: The Stdlib Authors
Latest version: 0.2.3

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# reExtendedLengthPath

[![NPM version][npm-image]][npm-url] [![Build Status][test-image]][test-url] [![Coverage Status][coverage-image]][coverage-url] <!-- [![dependencies][dependencies-image]][dependencies-url] -->

> [Regular expression][regexp] to detect an [extended-length path][extended-length-path].

<section class="installation">

## Installation

```bash
npm install @stdlib/regexp-extended-length-path
```

</section>

<section class="usage">

## Usage

```javascript
var reExtendedLengthPath = require( '@stdlib/regexp-extended-length-path' );
```

#### reExtendedLengthPath()

Returns a [regular expression][regexp] to detect an [extended-length path][extended-length-path] (i.e., a Windows path which begins with the characters `\\?\`).

```javascript
var RE = reExtendedLengthPath();
var bool = RE.test( '\\\\?\\C:\\foo\\bar' );
// returns true
```

</section>

<!-- /.usage -->

<section class="examples">

## Examples

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

```javascript
var reExtendedLengthPath = require( '@stdlib/regexp-extended-length-path' );

var RE_EXTENDED_LENGTH_PATH = reExtendedLengthPath();
var bool;
var path;

path = '\\\\?\\C:\\foo\\bar';
bool = RE_EXTENDED_LENGTH_PATH.test( path );
// returns true

path = '\\\\?\\UNC\\server\\share';
bool = RE_EXTENDED_LENGTH_PATH.test( path );
// returns true

path = 'C:\\foo\\bar';
bool = RE_EXTENDED_LENGTH_PATH.test( path );
// returns false

path = '/c/foo/bar';
bool = RE_EXTENDED_LENGTH_PATH.test( path );
// returns false

path = '/foo/bar';
bool = RE_EXTENDED_LENGTH_PATH.test( path );
// returns false
```

</section>

<!-- /.examples -->

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<section class="related">

</section>

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<section class="main-repo" >

* * *

## Notice

This package is part of [stdlib][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][stdlib], see the main project [repository][stdlib].

#### Community

[![Chat][chat-image]][chat-url]

---

## License

See [LICENSE][stdlib-license].


## Copyright

Copyright &copy; 2016-2026. The Stdlib [Authors][stdlib-authors].

</section>

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[test-url]: https://github.com/stdlib-js/regexp-extended-length-path/actions/workflows/test.yml?query=branch:v0.2.3

[coverage-image]: https://img.shields.io/codecov/c/github/stdlib-js/regexp-extended-length-path/main.svg
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[stdlib]: https://github.com/stdlib-js/stdlib

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[umd]: https://github.com/umdjs/umd
[es-module]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Modules

[deno-url]: https://github.com/stdlib-js/regexp-extended-length-path/tree/deno
[deno-readme]: https://github.com/stdlib-js/regexp-extended-length-path/blob/deno/README.md
[umd-url]: https://github.com/stdlib-js/regexp-extended-length-path/tree/umd
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[esm-url]: https://github.com/stdlib-js/regexp-extended-length-path/tree/esm
[esm-readme]: https://github.com/stdlib-js/regexp-extended-length-path/blob/esm/README.md
[branches-url]: https://github.com/stdlib-js/regexp-extended-length-path/blob/main/branches.md

[stdlib-license]: https://raw.githubusercontent.com/stdlib-js/regexp-extended-length-path/main/LICENSE

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

[extended-length-path]: https://msdn.microsoft.com/en-us/library/windows/desktop/aa365247(v=vs.85).aspx

</section>

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