Regular expression to detect an extended-length path.
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> [Regular expression][regexp] to detect an [extended-length path][extended-length-path].
``bash`
npm install @stdlib/regexp-extended-length-path
`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
`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
`
*
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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].
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---
See [LICENSE][stdlib-license].
Copyright © 2016-2026. The Stdlib [Authors][stdlib-authors].
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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
[umd-readme]: https://github.com/stdlib-js/regexp-extended-length-path/blob/umd/README.md
[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
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[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