think\Template::stripPreg PHP Method

    private function stripPreg($str)
    {
        return str_replace(['{', '}', '(', ')', '|', '[', ']', '-', '+', '*', '.', '^', '?'], ['\\{', '\\}', '\\(', '\\)', '\\|', '\\[', '\\]', '\\-', '\\+', '\\*', '\\.', '\\^', '\\?'], $str);
    }