protected function _getFallbackVarname($name)
    {
        if (false===strpos($name, '_')) {
            return $name;
        }
        $parts = explode('_', $name);
        $str = '';
        foreach ($parts as $_part) {
            $str .= strlen($str) ? ucfirst($_part) : $_part;
        }
        return $str;
    }