public static function parse($str)
    {
        $bLength = 0;
        if ('b' === $str[0]) {
            $bLength = 1;
        }

        if ('\'' === $str[$bLength]) {
            return str_replace(
                ['\\\\', '\\\''],
                ['\\', '\''],
                substr($str, $bLength + 1, -1)
            );
        } else {
            return self::parseEscapeSequences(substr($str, $bLength + 1, -1), '"');
        }
    }