public function applyConclusiveMatch($userAgent) { if (WURFL_Handlers_Utils::numSlashes($userAgent) >= 2) { $tolerance = WURFL_Handlers_Utils::secondSlash($userAgent); } else { // DoCoMo/2.0 F01A(c100;TB;W24H17) $tolerance = WURFL_Handlers_Utils::firstOpenParen($userAgent); } return $this->getDeviceIDFromRIS($userAgent, $tolerance); }