for::matchDetectionRulesAgainstUA

protected function matchDetectionRulesAgainstUA($userAgent = null)
    {
        // Begin general search.
        foreach ($this->getRules() as $_regex) {
            if (empty($_regex)) {
                continue;
            }

            if ($this->match($_regex, $userAgent)) {
                return true;
            }
        }

        return false;
    }