{{alias}}()
    Returns a regular expression to split a POSIX filename.

    When executed, the regular expression splits a POSIX filename into the
    following parts:

    - input value
    - root
    - dirname
    - basename
    - extname

    When executed against dotfile filenames (e.g., `.gitignore`), the regular
    expression does not capture the basename as a filename extension.

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

    Examples
    --------
    > var RE = {{alias}}();
    > var parts = RE.exec( '/foo/bar/index.js' ).slice()
    [ '/foo/bar/index.js', '/', 'foo/bar/', 'index.js', '.js' ]
    > parts = RE.exec( './foo/bar/.gitignore' ).slice()
    [ './foo/bar/.gitignore', '', './foo/bar/', '.gitignore', '' ]
    > parts = RE.exec( 'foo/file.pdf' ).slice()
    [ 'foo/file.pdf', '', 'foo/', 'file.pdf', '.pdf' ]
    > parts = RE.exec( '/foo/bar/file' ).slice()
    [ '/foo/bar/file', '/', 'foo/bar/', 'file', '' ]
    > parts = RE.exec( 'index.js' ).slice()
    [ 'index.js', '', '', 'index.js', '.js' ]
    > parts = RE.exec( '.' ).slice()
    [ '.', '', '', '.', '' ]
    > parts = RE.exec( './' ).slice()
    [ './', '', ..., '.', '' ]
    > parts = RE.exec( '' ).slice()
    [ '', '', '', '', '' ]


{{alias}}.REGEXP
    Regular expression to split a POSIX filename.

    Examples
    --------
    > var parts = {{alias}}.REGEXP.exec( '/foo/bar/index.js' ).slice()
    [ '/foo/bar/index.js', '/', 'foo/bar/', 'index.js', '.js' ]

    See Also
    --------