# Extended Length Path
> [Regular expression][regexp] to detect an [extended-length path][extended-length-path].
## 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
```
## Examples
```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
```
[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