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TiddlyWiki5/node_modules/esprima/test/3rdparty/platform.js
2012-05-07 09:43:29 +01:00

878 lines
28 KiB
JavaScript

/*!
* Platform.js v1.0.0-pre <http://mths.be/platform>
* Copyright 2010-2012 John-David Dalton <http://allyoucanleet.com/>
* Available under MIT license <http://mths.be/mit>
*/
;(function(window) {
/** Backup possible window/global object */
var oldWin = window;
/** Detect free variable `exports` */
var freeExports = typeof exports == 'object' && exports;
/** Detect free variable `global` */
var freeGlobal = typeof global == 'object' && global &&
(global == global.global ? (window = global) : global);
/** Opera regexp */
var reOpera = /Opera/;
/** Used to resolve a value's internal [[Class]] */
var toString = {}.toString;
/** Detect Java environment */
var java = /Java/.test(getClassOf(window.java)) && window.java;
/** A character to represent alpha */
var alpha = java ? 'a' : '\u03b1';
/** A character to represent beta */
var beta = java ? 'b' : '\u03b2';
/** Browser document object */
var doc = window.document || {};
/** Used to check for own properties of an object */
var hasOwnProperty = {}.hasOwnProperty;
/** Browser navigator object */
var nav = window.navigator || {};
/**
* Detect Opera browser
* http://www.howtocreate.co.uk/operaStuff/operaObject.html
* http://dev.opera.com/articles/view/opera-mini-web-content-authoring-guidelines/#operamini
*/
var opera = window.operamini || window.opera;
/** Opera [[Class]] */
var operaClass = reOpera.test(operaClass = getClassOf(opera)) ? operaClass : (opera = null);
/** Possible global object */
var thisBinding = this;
/** Browser user agent string */
var userAgent = nav.userAgent || '';
/*--------------------------------------------------------------------------*/
/**
* Capitalizes a string value.
* @private
* @param {String} string The string to capitalize.
* @returns {String} The capitalized string.
*/
function capitalize(string) {
string = String(string);
return string.charAt(0).toUpperCase() + string.slice(1);
}
/**
* An iteration utility for arrays and objects.
* @private
* @param {Array|Object} object The object to iterate over.
* @param {Function} callback The function called per iteration.
*/
function each(object, callback) {
var index = -1,
length = object.length;
if (length == length >>> 0) {
while (++index < length) {
callback(object[index], index, object);
}
} else {
forOwn(object, callback);
}
}
/**
* Iterates over an object's own properties, executing the `callback` for each.
* @private
* @param {Object} object The object to iterate over.
* @param {Function} callback The function executed per own property.
*/
function forOwn(object, callback) {
for (var key in object) {
hasKey(object, key) && callback(object[key], key, object);
}
}
/**
* Trim and conditionally capitalize string values.
* @private
* @param {String} string The string to format.
* @returns {String} The formatted string.
*/
function format(string) {
string = trim(string);
return /^(?:webOS|i(?:OS|P))/.test(string)
? string
: capitalize(string);
}
/**
* Gets the internal [[Class]] of a value.
* @private
* @param {Mixed} value The value.
* @returns {String} The [[Class]].
*/
function getClassOf(value) {
return value == null
? capitalize(value)
: toString.call(value).slice(8, -1);
}
/**
* Checks if an object has the specified key as a direct property.
* @private
* @param {Object} object The object to check.
* @param {String} key The key to check for.
* @returns {Boolean} Returns `true` if key is a direct property, else `false`.
*/
function hasKey() {
// lazy define for others (not as accurate)
hasKey = function(object, key) {
var parent = object != null && (object.constructor || Object).prototype;
return !!parent && key in Object(object) && !(key in parent && object[key] === parent[key]);
};
// for modern browsers
if (getClassOf(hasOwnProperty) == 'Function') {
hasKey = function(object, key) {
return object != null && hasOwnProperty.call(object, key);
};
}
// for Safari 2
else if ({}.__proto__ == Object.prototype) {
hasKey = function(object, key) {
var result = false;
if (object != null) {
object = Object(object);
object.__proto__ = [object.__proto__, object.__proto__ = null, result = key in object][0];
}
return result;
};
}
return hasKey.apply(this, arguments);
}
/**
* Host objects can return type values that are different from their actual
* data type. The objects we are concerned with usually return non-primitive
* types of object, function, or unknown.
* @private
* @param {Mixed} object The owner of the property.
* @param {String} property The property to check.
* @returns {Boolean} Returns `true` if the property value is a non-primitive, else `false`.
*/
function isHostType(object, property) {
var type = object != null ? typeof object[property] : 'number';
return !/^(?:boolean|number|string|undefined)$/.test(type) &&
(type == 'object' ? !!object[property] : true);
}
/**
* Prepares a string for use in a RegExp constructor by making hyphens and spaces optional.
* @private
* @param {String} string The string to qualify.
* @returns {String} The qualified string.
*/
function qualify(string) {
return String(string).replace(/([ -])(?!$)/g, '$1?');
}
/**
* A bare-bones` Array#reduce` like utility function.
* @private
* @param {Array} array The array to iterate over.
* @param {Function} callback The function called per iteration.
* @param {Mixed} accumulator Initial value of the accumulator.
* @returns {Mixed} The accumulator.
*/
function reduce(array, callback) {
var accumulator = null;
each(array, function(value, index) {
accumulator = callback(accumulator, value, index, array);
});
return accumulator;
}
/**
* Removes leading and trailing whitespace from a string.
* @private
* @param {String} string The string to trim.
* @returns {String} The trimmed string.
*/
function trim(string) {
return String(string).replace(/^ +| +$/g, '');
}
/*--------------------------------------------------------------------------*/
/**
* Creates a new platform object.
* @memberOf platform
* @param {String} [ua = navigator.userAgent] The user agent string.
* @returns {Object} A platform object.
*/
function parse(ua) {
ua || (ua = userAgent);
/** Temporary variable used over the script's lifetime */
var data;
/** The CPU architecture */
var arch = ua;
/** Platform description array */
var description = [];
/** Platform alpha/beta indicator */
var prerelease = null;
/** A flag to indicate that environment features should be used to resolve the platform */
var useFeatures = ua == userAgent;
/** The browser/environment version */
var version = useFeatures && opera && typeof opera.version == 'function' && opera.version();
/* Detectable layout engines (order is important) */
var layout = getLayout([
{ 'label': 'WebKit', 'pattern': 'AppleWebKit' },
'iCab',
'Presto',
'NetFront',
'Tasman',
'Trident',
'KHTML',
'Gecko'
]);
/* Detectable browser names (order is important) */
var name = getName([
'Adobe AIR',
'Arora',
'Avant Browser',
'Camino',
'Epiphany',
'Fennec',
'Flock',
'Galeon',
'GreenBrowser',
'iCab',
'Iceweasel',
'Iron',
'K-Meleon',
'Konqueror',
'Lunascape',
'Maxthon',
'Midori',
'Nook Browser',
'PhantomJS',
'Raven',
'Rekonq',
'RockMelt',
'SeaMonkey',
{ 'label': 'Silk', 'pattern': '(?:Cloud9|Silk)' },
'Sleipnir',
'SlimBrowser',
'Sunrise',
'Swiftfox',
'WebPositive',
'Opera Mini',
'Opera',
'Chrome',
{ 'label': 'Firefox', 'pattern': '(?:Firefox|Minefield)' },
{ 'label': 'IE', 'pattern': 'MSIE' },
'Safari'
]);
/* Detectable products (order is important) */
var product = getProduct([
'BlackBerry',
{ 'label': 'Galaxy S', 'pattern': 'GT-I9000' },
{ 'label': 'Galaxy S2', 'pattern': 'GT-I9100' },
'iPad',
'iPod',
'iPhone',
'Kindle',
{ 'label': 'Kindle Fire', 'pattern': '(?:Cloud9|Silk)' },
'Nook',
'PlayBook',
'TouchPad',
'Transformer',
'Xoom'
]);
/* Detectable manufacturers */
var manufacturer = getManufacturer({
'Apple': { 'iPad': 1, 'iPhone': 1, 'iPod': 1 },
'Amazon': { 'Kindle': 1, 'Kindle Fire': 1 },
'Asus': { 'Transformer': 1 },
'Barnes & Noble': { 'Nook': 1 },
'BlackBerry': { 'PlayBook': 1 },
'HP': { 'TouchPad': 1 },
'LG': { },
'Motorola': { 'Xoom': 1 },
'Nokia': { },
'Samsung': { 'Galaxy S': 1, 'Galaxy S2': 1 }
});
/* Detectable OSes (order is important) */
var os = getOS([
'Android',
'CentOS',
'Debian',
'Fedora',
'FreeBSD',
'Gentoo',
'Haiku',
'Kubuntu',
'Linux Mint',
'Red Hat',
'SuSE',
'Ubuntu',
'Xubuntu',
'Cygwin',
'Symbian OS',
'hpwOS',
'webOS ',
'webOS',
'Tablet OS',
'Linux',
'Mac OS X',
'Macintosh',
'Mac',
'Windows 98;',
'Windows '
]);
/*------------------------------------------------------------------------*/
/**
* Picks the layout engine from an array of guesses.
* @private
* @param {Array} guesses An array of guesses.
* @returns {String|Null} The detected layout engine.
*/
function getLayout(guesses) {
return reduce(guesses, function(result, guess) {
return result || RegExp('\\b' + (
guess.pattern || qualify(guess)
) + '\\b', 'i').exec(ua) && (guess.label || guess);
});
}
/**
* Picks the manufacturer from an array of guesses.
* @private
* @param {Array} guesses An array of guesses.
* @returns {String|Null} The detected manufacturer.
*/
function getManufacturer(guesses) {
return reduce(guesses, function(result, value, key) {
// lookup the manufacturer by product or scan the UA for the manufacturer
return result || (
value[product] ||
value[0/*Opera 9.25 fix*/, /^[a-z]+/i.exec(product)] ||
RegExp('\\b' + (key.pattern || qualify(key)) + '(?:\\b|\\w*\\d)', 'i').exec(ua)
) && (key.label || key);
});
}
/**
* Picks the browser name from an array of guesses.
* @private
* @param {Array} guesses An array of guesses.
* @returns {String|Null} The detected browser name.
*/
function getName(guesses) {
return reduce(guesses, function(result, guess) {
return result || RegExp('\\b' + (
guess.pattern || qualify(guess)
) + '\\b', 'i').exec(ua) && (guess.label || guess);
});
}
/**
* Picks the OS name from an array of guesses.
* @private
* @param {Array} guesses An array of guesses.
* @returns {String|Null} The detected OS name.
*/
function getOS(guesses) {
return reduce(guesses, function(result, guess) {
var pattern = guess.pattern || qualify(guess);
if (!result && (result =
RegExp('\\b' + pattern + '(?:/[\\d.]+|[ \\w.]*)', 'i').exec(ua))) {
// platform tokens defined at
// http://msdn.microsoft.com/en-us/library/ms537503(VS.85).aspx
// http://web.archive.org/web/20081122053950/http://msdn.microsoft.com/en-us/library/ms537503(VS.85).aspx
data = {
'6.2': '8',
'6.1': 'Server 2008 R2 / 7',
'6.0': 'Server 2008 / Vista',
'5.2': 'Server 2003 / XP 64-bit',
'5.1': 'XP',
'5.01': '2000 SP1',
'5.0': '2000',
'4.0': 'NT',
'4.90': 'ME'
};
// detect Windows version from platform tokens
if (/^Win/i.test(result) &&
(data = data[0/*Opera 9.25 fix*/, /[\d.]+$/.exec(result)])) {
result = 'Windows ' + data;
}
// correct character case and cleanup
result = format(String(result)
.replace(RegExp(pattern, 'i'), guess.label || guess)
.replace(/ ce$/i, ' CE')
.replace(/hpw/i, 'web')
.replace(/Macintosh/, 'Mac OS')
.replace(/_PowerPC/i, ' OS')
.replace(/(OS X) [^ \d]+/i, '$1')
.replace(/\/(\d)/, ' $1')
.replace(/_/g, '.')
.replace(/(?: BePC|[ .]*fc[ \d.]+)$/i, '')
.replace(/x86\.64/gi, 'x86_64')
.split(' on ')[0]);
}
return result;
});
}
/**
* Picks the product name from an array of guesses.
* @private
* @param {Array} guesses An array of guesses.
* @returns {String|Null} The detected product name.
*/
function getProduct(guesses) {
return reduce(guesses, function(result, guess) {
var pattern = guess.pattern || qualify(guess);
if (!result && (result =
RegExp('\\b' + pattern + ' *\\d+[.\\w_]*', 'i').exec(ua) ||
RegExp('\\b' + pattern + '(?:; *(?:[a-z]+[_-])?[a-z]+\\d+|[^ ();-]*)', 'i').exec(ua)
)) {
// split by forward slash and append product version if needed
if ((result = String(guess.label || result).split('/'))[1] && !/[\d.]+/.test(result[0])) {
result[0] += ' ' + result[1];
}
// correct character case and cleanup
guess = guess.label || guess;
result = format(result[0]
.replace(RegExp(pattern, 'i'), guess)
.replace(RegExp('; *(?:' + guess + '[_-])?', 'i'), ' ')
.replace(RegExp('(' + guess + ')(\\w)', 'i'), '$1 $2'));
}
return result;
});
}
/**
* Resolves the version using an array of UA patterns.
* @private
* @param {Array} patterns An array of UA patterns.
* @returns {String|Null} The detected version.
*/
function getVersion(patterns) {
return reduce(patterns, function(result, pattern) {
return result || (RegExp(pattern +
'(?:-[\\d.]+/|(?: for [\\w-]+)?[ /-])([\\d.]+[^ ();/-]*)', 'i').exec(ua) || 0)[1] || null;
});
}
/*------------------------------------------------------------------------*/
/**
* Return platform description when the platform object is coerced to a string.
* @name toString
* @memberOf platform
* @type Function
* @returns {String} The platform description.
*/
function toStringPlatform() {
return this.description || '';
}
/*------------------------------------------------------------------------*/
// convert layout to an array so we can add extra details
layout && (layout = [layout]);
// detect product names that contain their manufacturer's name
if (manufacturer && !product) {
product = getProduct([manufacturer]);
}
// detect simulators
if (/\bSimulator\b/i.test(ua)) {
product = (product ? product + ' ' : '') + 'Simulator';
}
// detect iOS
if (/^iP/.test(product)) {
name || (name = 'Safari');
os = 'iOS' + ((data = / OS ([\d_]+)/i.exec(ua))
? ' ' + data[1].replace(/_/g, '.')
: '');
}
// detect Kubuntu
else if (name == 'Konqueror' && !/buntu/i.test(os)) {
os = 'Kubuntu';
}
// detect Android browsers
else if (name == 'Chrome' && manufacturer) {
name = 'Android Browser';
os = /Android/.test(os) ? os : 'Android';
}
// detect false positives for Firefox/Safari
else if (!name || (data = !/\bMinefield\b/i.test(ua) && /Firefox|Safari/.exec(name))) {
// escape the `/` for Firefox 1
if (name && !product && /[\/,]|^[^(]+?\)/.test(ua.slice(ua.indexOf(data + '/') + 8))) {
// clear name of false positives
name = null;
}
// reassign a generic name
if ((data = product || manufacturer || os) &&
(product || manufacturer || /Android|Symbian OS|Tablet OS|webOS/.test(os))) {
name = /[a-z]+(?: Hat)?/i.exec(/Android/.test(os) ? os : data) + ' Browser';
}
}
// detect non-Opera versions (order is important)
if (!version) {
version = getVersion([
'(?:Cloud9|Opera ?Mini|Raven|Silk)',
'Version',
qualify(name),
'(?:Firefox|Minefield|NetFront)'
]);
}
// detect stubborn layout engines
if (layout == 'iCab' && parseFloat(version) > 3) {
layout = ['WebKit'];
} else if (name == 'Konqueror' && /\bKHTML\b/i.test(ua)) {
layout = ['KHTML'];
} else if (data =
/Opera/.test(name) && 'Presto' ||
/\b(?:Midori|Nook|Safari)\b/i.test(ua) && 'WebKit' ||
!layout && /\bMSIE\b/i.test(ua) && (/^Mac/.test(os) ? 'Tasman' : 'Trident')) {
layout = [data];
}
// leverage environment features
if (useFeatures) {
// detect server-side environments
// Rhino has a global function while others have a global object
if (isHostType(thisBinding, 'global')) {
if (java) {
data = java.lang.System;
arch = data.getProperty('os.arch');
os = os || data.getProperty('os.name') + ' ' + data.getProperty('os.version');
}
if (typeof exports == 'object' && exports) {
// if `thisBinding` is the [ModuleScope]
if (thisBinding == oldWin && typeof system == 'object' && (data = [system])[0]) {
os || (os = data[0].os || null);
try {
data[1] = require('ringo/engine').version;
version = data[1].join('.');
name = 'RingoJS';
} catch(e) {
if (data[0].global == freeGlobal) {
name = 'Narwhal';
}
}
} else if (typeof process == 'object' && (data = process)) {
name = 'Node.js';
arch = data.arch;
os = data.platform;
version = /[\d.]+/.exec(data.version)[0];
}
} else if (getClassOf(window.environment) == 'Environment') {
name = 'Rhino';
}
}
// detect Adobe AIR
else if (getClassOf(data = window.runtime) == 'ScriptBridgingProxyObject') {
name = 'Adobe AIR';
os = data.flash.system.Capabilities.os;
}
// detect PhantomJS
else if (getClassOf(data = window.phantom) == 'RuntimeObject') {
name = 'PhantomJS';
version = (data = data.version || null) && (data.major + '.' + data.minor + '.' + data.patch);
}
// detect IE compatibility modes
else if (typeof doc.documentMode == 'number' && (data = /\bTrident\/(\d+)/i.exec(ua))) {
// we're in compatibility mode when the Trident version + 4 doesn't
// equal the document mode
version = [version, doc.documentMode];
if ((data = +data[1] + 4) != version[1]) {
description.push('IE ' + version[1] + ' mode');
layout[1] = '';
version[1] = data;
}
version = name == 'IE' ? String(version[1].toFixed(1)) : version[0];
}
os = os && format(os);
}
// detect prerelease phases
if (version && (data =
/(?:[ab]|dp|pre|[ab]\d+pre)(?:\d+\+?)?$/i.exec(version) ||
/(?:alpha|beta)(?: ?\d)?/i.exec(ua + ';' + (useFeatures && nav.appMinorVersion)) ||
/\bMinefield\b/i.test(ua) && 'a')) {
prerelease = /b/i.test(data) ? 'beta' : 'alpha';
version = version.replace(RegExp(data + '\\+?$'), '') +
(prerelease == 'beta' ? beta : alpha) + (/\d+\+?/.exec(data) || '');
}
// obscure Maxthon's unreliable version
if (name == 'Maxthon' && version) {
version = version.replace(/\.[\d.]+/, '.x');
}
// detect Silk desktop/accelerated modes
else if (name == 'Silk') {
if (!/Mobi/i.test(ua)) {
os = 'Android';
description.unshift('desktop mode');
}
if (/Accelerated *= *true/i.test(ua)) {
description.unshift('accelerated');
}
}
// detect Windows Phone desktop mode
else if (name == 'IE' && (data = (/; *(?:XBLWP|ZuneWP)(\d+)/i.exec(ua) || 0)[1])) {
name += ' Mobile';
os = 'Windows Phone OS ' + data + '.x';
description.unshift('desktop mode');
}
// add mobile postfix
else if ((name == 'IE' || name && !product && !/Browser/.test(name)) &&
(os == 'Windows CE' || /Mobi/i.test(ua))) {
name += ' Mobile';
}
// detect IE platform preview
else if (name == 'IE' && useFeatures && typeof external == 'object' && !external) {
description.unshift('platform preview');
}
// detect BlackBerry OS version
// http://docs.blackberry.com/en/developers/deliverables/18169/HTTP_headers_sent_by_BB_Browser_1234911_11.jsp
else if (/BlackBerry/.test(product) && (data =
(RegExp(product.replace(/ +/g, ' *') + '/([.\\d]+)', 'i').exec(ua) || 0)[1] ||
version)) {
os = 'Device Software ' + data;
version = null;
}
// detect Opera identifying/masking itself as another browser
// http://www.opera.com/support/kb/view/843/
else if (this != forOwn && (
(useFeatures && opera) ||
(/Opera/.test(name) && /\b(?:MSIE|Firefox)\b/i.test(ua)) ||
(name == 'Firefox' && /OS X (?:\d+\.){2,}/.test(os)) ||
(name == 'IE' && (
(os && !/^Win/.test(os) && version > 5.5) ||
/Windows XP/.test(os) && version > 8 ||
version == 8 && !/Trident/.test(ua)
))
) && !reOpera.test(data = parse.call(forOwn, ua.replace(reOpera, '') + ';')) && data.name) {
// when "indentifying" the UA contains both Opera and the other browser's name
data = 'ing as ' + data.name + ((data = data.version) ? ' ' + data : '');
if (reOpera.test(name)) {
if (/IE/.test(data) && os == 'Mac OS') {
os = null;
}
data = 'identify' + data;
}
// when "masking" the UA contains only the other browser's name
else {
data = 'mask' + data;
if (operaClass) {
name = format(operaClass.replace(/([a-z])([A-Z])/g, '$1 $2'));
} else {
name = 'Opera';
}
if (/IE/.test(data)) {
os = null;
}
if (!useFeatures) {
version = null;
}
}
layout = ['Presto'];
description.push(data);
}
// detect WebKit Nightly and approximate Chrome/Safari versions
if ((data = (/AppleWebKit\/([\d.]+\+?)/i.exec(ua) || 0)[1])) {
// correct build for numeric comparison
// (e.g. "532.5" becomes "532.05")
data = [parseFloat(data.replace(/\.(\d)$/, '.0$1')), data];
// nightly builds are postfixed with a `+`
if (name == 'Safari' && data[1].slice(-1) == '+') {
name = 'WebKit Nightly';
prerelease = 'alpha';
version = data[1].slice(0, -1);
}
// clear incorrect browser versions
else if (version == data[1] ||
version == (/Safari\/([\d.]+\+?)/i.exec(ua) || 0)[1]) {
version = null;
}
// use the full Chrome version when available
data = [data[0], (/Chrome\/([\d.]+)/i.exec(ua) || 0)[1]];
// detect JavaScriptCore
// http://stackoverflow.com/questions/6768474/how-can-i-detect-which-javascript-engine-v8-or-jsc-is-used-at-runtime-in-androi
if (!useFeatures || (/internal|\n/i.test(toString.toString()) && !data[1])) {
layout[1] = 'like Safari';
data = (data = data[0], data < 400 ? 1 : data < 500 ? 2 : data < 526 ? 3 : data < 533 ? 4 : data < 534 ? '4+' : data < 535 ? 5 : '5');
} else {
layout[1] = 'like Chrome';
data = data[1] || (data = data[0], data < 530 ? 1 : data < 532 ? 2 : data < 532.05 ? 3 : data < 533 ? 4 : data < 534.03 ? 5 : data < 534.07 ? 6 : data < 534.10 ? 7 : data < 534.13 ? 8 : data < 534.16 ? 9 : data < 534.24 ? 10 : data < 534.30 ? 11 : data < 535.01 ? 12 : data < 535.02 ? '13+' : data < 535.07 ? 15 : data < 535.11 ? 16 : data < 535.19 ? 17 : data < 535.21 ? 18 : '19');
}
// add the postfix of ".x" or "+" for approximate versions
layout[1] += ' ' + (data += typeof data == 'number' ? '.x' : /[.+]/.test(data) ? '' : '+');
// obscure version for some Safari 1-2 releases
if (name == 'Safari' && (!version || parseInt(version) > 45)) {
version = data;
}
}
// strip incorrect OS versions
if (version && version.indexOf(data = /[\d.]+$/.exec(os)) == 0 &&
ua.indexOf('/' + data + '-') > -1) {
os = trim(os.replace(data, ''));
}
// add layout engine
if (layout && !/Avant|Nook/.test(name) && (
/Browser|Lunascape|Maxthon/.test(name) ||
/^(?:Adobe|Arora|Midori|Phantom|Rekonq|Rock|Sleipnir|Web)/.test(name) && layout[1])) {
// don't add layout details to description if they are falsey
(data = layout[layout.length - 1]) && description.push(data);
}
// combine contextual information
if (description.length) {
description = ['(' + description.join('; ') + ')'];
}
// append manufacturer
if (manufacturer && product && product.indexOf(manufacturer) < 0) {
description.push('on ' + manufacturer);
}
// append product
if (product) {
description.push((/^on /.test(description[description.length -1]) ? '' : 'on ') + product);
}
// add browser/OS architecture
if ((data = /\b(?:AMD|IA|Win|WOW|x86_|x)64\b/i).test(arch) && !/\bi686\b/i.test(arch)) {
os = os && os + (data.test(os) ? '' : ' 64-bit');
if (name && (/WOW64/i.test(ua) ||
(useFeatures && /\w(?:86|32)$/.test(nav.cpuClass || nav.platform)))) {
description.unshift('32-bit');
}
}
ua || (ua = null);
/*------------------------------------------------------------------------*/
/**
* The platform object.
* @name platform
* @type Object
*/
return {
/**
* The browser/environment version.
* @memberOf platform
* @type String|Null
*/
'version': name && version && (description.unshift(version), version),
/**
* The name of the browser/environment.
* @memberOf platform
* @type String|Null
*/
'name': name && (description.unshift(name), name),
/**
* The name of the operating system.
* @memberOf platform
* @type String|Null
*/
'os': os && (name &&
!(os == os.split(' ')[0] && (os == name.split(' ')[0] || product)) &&
description.push(product ? '(' + os + ')' : 'on ' + os), os),
/**
* The platform description.
* @memberOf platform
* @type String|Null
*/
'description': description.length ? description.join(' ') : ua,
/**
* The name of the browser layout engine.
* @memberOf platform
* @type String|Null
*/
'layout': layout && layout[0],
/**
* The name of the product's manufacturer.
* @memberOf platform
* @type String|Null
*/
'manufacturer': manufacturer,
/**
* The alpha/beta release indicator.
* @memberOf platform
* @type String|Null
*/
'prerelease': prerelease,
/**
* The name of the product hosting the browser.
* @memberOf platform
* @type String|Null
*/
'product': product,
/**
* The browser's user agent string.
* @memberOf platform
* @type String|Null
*/
'ua': ua,
// parses a user agent string into a platform object
'parse': parse,
// returns the platform description
'toString': toStringPlatform
};
}
/*--------------------------------------------------------------------------*/
// expose platform
// in Narwhal, Node.js, or RingoJS
if (freeExports) {
forOwn(parse(), function(value, key) {
freeExports[key] = value;
});
}
// via an AMD loader
else if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) {
define('platform', function() {
return parse();
});
}
// in a browser or Rhino
else {
// use square bracket notation so Closure Compiler won't munge `platform`
// http://code.google.com/closure/compiler/docs/api-tutorial3.html#export
window['platform'] = parse();
}
}(this));