mirror of
https://github.com/lancedikson/bowser
synced 2026-03-02 03:40:27 +00:00
refactored regex matching to be executed at the latest possible moment and after a match was found to skip all consecutive regex execution instead of running *all* of the checks upfront
This commit is contained in:
BendingBender
200
src/bowser.js
200
src/bowser.js
@@ -11,126 +11,69 @@
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function detect(ua) {
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function getVersion(regex) {
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function getFirstMatch(regex) {
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var match = ua.match(regex);
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return (match && match.length > 1 && match[1]) || '';
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}
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var ie = /msie|trident/i.test(ua)
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, chrome = /chrome|crios|crmo/i.test(ua)
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, phantom = /phantom/i.test(ua)
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, ipod = /ipod/i.test(ua)
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, iphone = !ipod && /iphone/i.test(ua)
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, ipad = /ipad/i.test(ua)
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, ios = iphone || ipad || ipod
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, silk = /silk/i.test(ua)
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var iosdevice = getFirstMatch(/(ipod|iphone|ipad)/i).toLowerCase()
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, likeAndroid = /like android/i.test(ua)
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, android = !likeAndroid && /android/i.test(ua)
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, opera = /opera|opr/i.test(ua)
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, firefox = /firefox|iceweasel/i.test(ua)
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, gecko = /gecko\//i.test(ua)
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, seamonkey = /seamonkey\//i.test(ua)
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, webos = /(web|hpw)os/i.test(ua)
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, touchpad = /touchpad\//i.test(ua)
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, windowsphone = /windows phone/i.test(ua)
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, blackberry = /blackberry|\bbb\d+/i.test(ua)
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, rimtablet = /rim\stablet/i.test(ua)
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, bada = /bada/i.test(ua)
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, tizen = /tizen/i.test(ua)
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, safari = /safari/i.test(ua)
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, webkit = /applewebkit/i.test(ua)
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, versionIdentifier = getVersion(/version\/(\d+(\.\d+)?)/i)
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, mobile = /mobi/i.test(ua)
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, versionIdentifier = getFirstMatch(/version\/(\d+(\.\d+)?)/i)
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, tablet = /tablet/i.test(ua)
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, mobile = !tablet && /[^-]mobi/i.test(ua)
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, result
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if (windowsphone) result = {
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name: 'Windows Phone'
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, windowsphone: t
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, msie: t
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, version: getVersion(/iemobile\/(\d+(\.\d+)?)/i)
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}
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else if (opera) {
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if (/opera|opr/i.test(ua)) {
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result = {
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name: 'Opera'
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, opera: t
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, version: versionIdentifier ||
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getVersion(/opr\/(\d+(\.\d+)?)/i) ||
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getVersion(/opera[ \/](\d+(\.\d+)?)/i)
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, version: versionIdentifier || getFirstMatch(/(?:opera|opr)[\s\/](\d+(\.\d+)?)/i)
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}
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}
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else if (ie) result = {
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else if (/windows phone/i.test(ua)) {
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result = {
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name: 'Windows Phone'
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, windowsphone: t
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, msie: t
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, version: getFirstMatch(/iemobile\/(\d+(\.\d+)?)/i)
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}
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}
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else if (/msie|trident/i.test(ua)) {
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result = {
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name: 'Internet Explorer'
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, msie: t
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, version: getVersion(/(?:msie |rv:)(\d+(\.\d+)?)/i)
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, version: getFirstMatch(/(?:msie |rv:)(\d+(\.\d+)?)/i)
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}
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else if (chrome) {
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}
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else if (/chrome|crios|crmo/i.test(ua)) {
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result = {
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name: 'Chrome'
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, chrome: t
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, version: getVersion(/(?:chrome|crios|crmo)\/(\d+(\.\d+)?)/i)
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, version: getFirstMatch(/(?:chrome|crios|crmo)\/(\d+(\.\d+)?)/i)
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}
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}
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else if (phantom) result = {
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name: 'PhantomJS'
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, phantom: t
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, version: getVersion(/phantomjs\/(\d+(\.\d+)?)/i)
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}
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else if (silk) result = {
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name: 'Amazon Silk'
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, silk: t
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, version : getVersion(/silk\/(\d+(\.\d+)?)/i)
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}
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else if (ios) {
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else if (iosdevice) {
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result = {
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name : iphone ? 'iPhone' : ipad ? 'iPad' : 'iPod'
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name : iosdevice == 'iphone' ? 'iPhone' : iosdevice == 'ipad' ? 'iPad' : 'iPod'
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}
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// WTF: version is not part of user agent in web apps
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if (versionIdentifier) {
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result.version = versionIdentifier
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}
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}
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else if (blackberry || rimtablet) {
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result = {
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name: 'BlackBerry'
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, blackberry: t
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, version: versionIdentifier || getVersion(/blackberry[\d]+\/(\d+(\.\d+)?)/i)
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}
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}
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else if (webos) {
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result = {
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name: 'WebOS'
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, webos: t
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, version: versionIdentifier || getVersion(/w(?:eb)?osbrowser\/(\d+(\.\d+)?)/i)
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};
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touchpad && (result.touchpad = t)
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}
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else if (bada) {
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result = {
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name: 'Bada'
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, bada: t
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, version: getVersion(/dolfin\/(\d+(\.\d+)?)/i)
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};
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}
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else if (tizen) {
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result = {
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name: 'Tizen'
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, tizen: t
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, version: getVersion(/(?:tizen\s?)?browser\/(\d+(\.\d+)?)/i) || versionIdentifier
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};
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}
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else if (gecko) {
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else if (/gecko\//i.test(ua)) {
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result = {
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name: 'Gecko'
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, gecko: t
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, mozilla: t
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, version: getVersion(/(?:firefox|iceweasel)[ \/](\d+(\.\d+)?)/i)
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, version: getFirstMatch(/(?:firefox|iceweasel)[ \/](\d+(\.\d+)?)/i)
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}
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if (seamonkey) {
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if (/seamonkey\//i.test(ua)) {
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result.name = 'SeaMonkey'
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result.seamonkey = t
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result.version = getVersion(/seamonkey\/(\d+(\.\d+)?)/i)
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} else if (firefox) {
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result.version = getFirstMatch(/seamonkey\/(\d+(\.\d+)?)/i)
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} else if (/firefox|iceweasel/i.test(ua)) {
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result.name = 'Firefox'
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result.firefox = t
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if (/\((mobile|tablet);[^\)]*rv:[\d\.]+\)/i.test(ua)) {
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@@ -138,45 +81,92 @@
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}
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}
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}
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else if (android) result = {
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else if (/silk/i.test(ua)) {
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result = {
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name: 'Amazon Silk'
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, silk: t
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, version : getFirstMatch(/silk\/(\d+(\.\d+)?)/i)
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}
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}
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else if (android) {
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result = {
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name: 'Android'
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, version: versionIdentifier
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}
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else if (safari) result = {
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}
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else if (/phantom/i.test(ua)) {
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result = {
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name: 'PhantomJS'
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, phantom: t
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, version: getFirstMatch(/phantomjs\/(\d+(\.\d+)?)/i)
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}
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}
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else if (/blackberry|\bbb\d+/i.test(ua) || /rim\stablet/i.test(ua)) {
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result = {
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name: 'BlackBerry'
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, blackberry: t
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, version: versionIdentifier || getFirstMatch(/blackberry[\d]+\/(\d+(\.\d+)?)/i)
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}
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}
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else if (/(web|hpw)os/i.test(ua)) {
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result = {
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name: 'WebOS'
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, webos: t
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, version: versionIdentifier || getFirstMatch(/w(?:eb)?osbrowser\/(\d+(\.\d+)?)/i)
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};
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/touchpad\//i.test(ua) && (result.touchpad = t)
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}
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else if (/bada/i.test(ua)) {
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result = {
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name: 'Bada'
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, bada: t
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, version: getFirstMatch(/dolfin\/(\d+(\.\d+)?)/i)
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};
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}
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else if (/tizen/i.test(ua)) {
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result = {
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name: 'Tizen'
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, tizen: t
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, version: getFirstMatch(/(?:tizen\s?)?browser\/(\d+(\.\d+)?)/i) || versionIdentifier
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};
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}
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else if (/safari/i.test(ua)) {
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result = {
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name: 'Safari'
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, safari: t
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, version: versionIdentifier
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}
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}
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else result = {}
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// set OS flags for platforms that have multiple browsers
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if (android || silk) {
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if (android || result.silk) {
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result.android = t
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} else if (ios) {
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result[iphone ? 'iphone' : ipad ? 'ipad' : 'ipod'] = t
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} else if (iosdevice) {
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result[iosdevice] = t
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result.ios = t
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}
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if (webkit) {
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if (/applewebkit/i.test(ua)) {
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result.webkit = t
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}
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// OS version extraction
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var osVersion = '';
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if (ios) {
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osVersion = getVersion(/os (\d+([_\s]\d+)*) like mac os x/i);
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if (iosdevice) {
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osVersion = getFirstMatch(/os (\d+([_\s]\d+)*) like mac os x/i);
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osVersion = osVersion.replace(/[_\s]/g, '.');
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} else if (android) {
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osVersion = getVersion(/android[ \/-](\d+(\.\d+)*)/i);
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} else if (windowsphone) {
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osVersion = getVersion(/windows phone (?:os)?\s?(\d+(\.\d+)*)/i);
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} else if (webos) {
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osVersion = getVersion(/(?:web|hpw)os\/(\d+(\.\d+)*)/i);
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} else if (rimtablet) {
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osVersion = getVersion(/rim\stablet\sos\s(\d+(\.\d+)*)/i);
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} else if (bada) {
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osVersion = getVersion(/bada\/(\d+(\.\d+)*)/i);
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} else if (tizen) {
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osVersion = getVersion(/tizen[\/\s](\d+(\.\d+)*)/i);
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osVersion = getFirstMatch(/android[ \/-](\d+(\.\d+)*)/i);
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} else if (result.windowsphone) {
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osVersion = getFirstMatch(/windows phone (?:os)?\s?(\d+(\.\d+)*)/i);
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} else if (result.webos) {
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osVersion = getFirstMatch(/(?:web|hpw)os\/(\d+(\.\d+)*)/i);
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} else if (result.blackberry) {
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osVersion = getFirstMatch(/rim\stablet\sos\s(\d+(\.\d+)*)/i);
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} else if (result.bada) {
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osVersion = getFirstMatch(/bada\/(\d+(\.\d+)*)/i);
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} else if (result.tizen) {
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osVersion = getFirstMatch(/tizen[\/\s](\d+(\.\d+)*)/i);
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}
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if (osVersion) {
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result.osversion = osVersion;
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@@ -184,9 +174,9 @@
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// device type extraction
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var osMajorVersion = osVersion.split('.')[0];
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if (tablet || ipad || (android && (osMajorVersion == 3 || (osMajorVersion == 4 && !mobile))) || rimtablet || silk || touchpad) {
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if (tablet || iosdevice == 'ipad' || (android && (osMajorVersion == 3 || (osMajorVersion == 4 && !mobile))) || result.silk) {
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result.tablet = t
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} else if (iphone || ipod || (android && mobile) || windowsphone || blackberry || webos || bada || tizen || mobile) {
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} else if (mobile || iosdevice == 'iphone' || iosdevice == 'ipod' || android || result.blackberry || result.webos || result.bada) {
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result.mobile = t
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}
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