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define(['underscore', 'asap'], function(_, asap) { |
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'use strict'; |
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_.mixin({ |
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nl2br: function(str) { |
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var breakTag = '<br />'; |
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return String(str).replace(/([^>\r\n]?)(\r\n|\n\r|\r|\n)/g, '$1' + breakTag + '$2'); |
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}, |
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trunc: function(str, maxLength, useWordBoundary, hellip) { |
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hellip = hellip || '…'; |
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var toLong = str.length > maxLength; |
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str = toLong ? str.substr(0, maxLength - 1) : str; |
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var lastSpace = str.lastIndexOf(' '); |
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str = useWordBoundary && toLong && lastSpace > 0 ? str.substr(0, lastSpace) : str; |
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return toLong ? str + hellip : str; |
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}, |
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isMobile: function() { |
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var elem = document.getElementsByTagName('body')[0]; |
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return elem && (' ' + elem.className + ' ') |
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.replace(/[\t\r\n\f]/g, ' ') |
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.indexOf(' mobile-version ') !== -1; |
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}, |
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isDesktop: function() { |
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return !this.isMobile(); |
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}, |
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trim: function(text) { |
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return text.replace(/^\s*/, '').replace(/\s*$/, ''); |
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}, |
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capitalize: function(text) { |
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return text.charAt(0).toUpperCase() + text.slice(1).toLowerCase(); |
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}, |
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/** |
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* Compares two arrays if they have the same set of elements |
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* |
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* @param firstArray {Array} |
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* @param secondArray {Array} |
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* @returns {boolean} |
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*/ |
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haveEqualSet: function(firstArray, secondArray) { |
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return firstArray.length === secondArray.length && _.difference(firstArray, secondArray).length === 0; |
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}, |
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/** |
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* The Number.isSafeInteger() method determines whether the provided value is a number that is a safe integer. |
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* @param number {testValue} |
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* @return {boolean} |
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*/ |
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isSafeInteger: function(number) { |
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// 0. Try use native API |
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if (Number.isSafeInteger) { |
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return Number.isSafeInteger(number); |
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} |
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// 1. If Type(number) is not Number, return false. |
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if (typeof(number) !== 'number') { |
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return false; |
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} |
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// 2. If number is NaN, +∞, or -∞, return false. |
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if (this.isNaN(number) || number === Infinity || number === -Infinity) { |
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return false; |
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} |
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// 3. Let integer. |
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var integer = parseInt(number); |
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// 4. If integer is not equal to number, return false. |
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if (integer !== number) { |
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return false; |
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} |
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// 5. If abs(integer) ≤ 2^53-1, return true. |
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if (Math.abs(integer) <= (Math.pow(2, 53) - 1)) { |
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return true; |
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} |
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// 6. Otherwise, return false. |
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return false; |
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} |
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}); |
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_.templateSettings.innerTempStart = '<%#'; |
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_.templateSettings.innerTempEnd = '#%>'; |
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_.template = _.wrap(_.template, function(original, text, settings, oldSettings) { |
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if (!settings && oldSettings) { |
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settings = oldSettings; |
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} |
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settings = _.defaults({}, settings, _.templateSettings); |
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var regexStart = new RegExp('^' + settings.innerTempStart); |
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var regexEnd = new RegExp(settings.innerTempEnd + '$'); |
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var evaluateStart = '(' + _.templateSettings.innerTempStart + ')'; |
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var evaluateEnd = '|(' + _.templateSettings.innerTempEnd + ')'; |
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var innerTempEvaluate = new RegExp(evaluateStart + evaluateEnd, 'g'); |
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text = _.trim(text).replace(regexStart, '').replace(regexEnd, ''); |
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var escapedText = text; |
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var levelOffsets = {}; |
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var level = 0; |
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var offsetDelta = 0; |
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var escapeText = function(text) { |
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return text.replace(/\<\;\%/g, '&lt;%').replace(/<%/g, '<%').replace(/%>/g, '%>'); |
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}; |
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text.replace(innerTempEvaluate, function(match, open, close, offset) { |
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offset += offsetDelta; |
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if (open) { |
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level++; |
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levelOffsets[level] = offset; |
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} |
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if (close && level) { |
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var start = escapedText.slice(0, levelOffsets[level]); |
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var end = escapedText.slice(offset + close.length); |
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var escape = escapedText.slice(levelOffsets[level] + settings.innerTempStart.length, offset); |
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var newEscape = escapeText(escape); |
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offsetDelta += newEscape.length - escape.length - (settings.innerTempEnd.length * 2); |
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escapedText = start + newEscape + end; |
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level--; |
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} |
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// Adobe VMs need the match returned to produce the correct offset. |
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return match; |
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}); |
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arguments[1] = _.trim(escapedText); |
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var func = original.apply(this, _.rest(arguments)); |
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func._source = arguments[1]; |
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return func; |
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}); |
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_.defer = asap; |
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return _; |
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}); |
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