public static function cleanFilePathname($path) {
		if (UString::isNotNull ( $path )) {
			if (\DS === "/")
				$path = \str_replace ( "\\", \DS, $path );
			else
				$path = \str_replace ( "/", \DS, $path );
			$path = \str_replace ( \DS . \DS, \DS, $path );
		}
		return $path;
	}