{{alias}}()
    Returns a regular expression to capture a Windows path dirname.

    Returns
    -------
    re: RegExp
        Regular expression.

    Examples
    --------
    > var RE = {{alias}}();
    > var dir = RE.exec( 'foo\\bar\\index.js' )[ 1 ]
    'foo\\bar'
    > dir = RE.exec( 'C:\\foo\\bar\\.gitignore' )[ 1 ]
    'C:\\foo\\bar'
    > dir = RE.exec( 'foo\\file.pdf' )[ 1 ]
    'foo'
    > dir = RE.exec( '\\foo\\bar\\file' )[ 1 ]
    '\\foo\\bar'
    > dir = RE.exec( 'index.js' )[ 1 ]
    ''
    > dir = RE.exec( '' )[ 1 ]
    ''


{{alias}}.REGEXP
    Regular expression to capture a Windows path dirname.

    Examples
    --------
    > var dir = reDirnameWindows.REGEXP.exec( 'foo\\bar\\index.js' )[ 1 ]
    'foo\\bar'

    See Also
    --------