/** * @class Ext.util.Format * * This class is a centralized place for formatting functions. It includes * functions to format various different types of data, such as text, dates and numeric values. * * ## Localization * * This class contains several options for localization. These can be set once the library has loaded, * all calls to the functions from that point will use the locale settings that were specified. * * Options include: * * - thousandSeparator * - decimalSeparator * - currenyPrecision * - currencySign * - currencyAtEnd * * This class also uses the default date format defined here: {@link Ext.Date#defaultFormat}. * * ## Using with renderers * * There are two helper functions that return a new function that can be used in conjunction with * grid renderers: * * columns: [{ * dataIndex: 'date', * renderer: Ext.util.Format.dateRenderer('Y-m-d') * }, { * dataIndex: 'time', * renderer: Ext.util.Format.numberRenderer('0.000') * }] * * Functions that only take a single argument can also be passed directly: * * columns: [{ * dataIndex: 'cost', * renderer: Ext.util.Format.usMoney * }, { * dataIndex: 'productCode', * renderer: Ext.util.Format.uppercase * }] * * ## Using with XTemplates * * XTemplates can also directly use Ext.util.Format functions: * * new Ext.XTemplate([ * 'Date: {startDate:date("Y-m-d")}', * 'Cost: {cost:usMoney}' * ]); * * @singleton */Ext.define('Ext.util.Format', function () { var me; // holds our singleton instance return { requires: [ 'Ext.Error', 'Ext.Number', 'Ext.String', 'Ext.Date' ], singleton: true, /** * The global default date format. */ defaultDateFormat: 'm/d/Y', /** * @property {String} thousandSeparator * The character that the {@link #number} function uses as a thousand separator. * * This may be overridden in a locale file. * @locale */ thousandSeparator: ',', /** * @property {String} decimalSeparator * The character that the {@link #number} function uses as a decimal point. * * This may be overridden in a locale file. * @locale */ decimalSeparator: '.', /** * @property {Number} currencyPrecision * The number of decimal places that the {@link #currency} function displays. * * This may be overridden in a locale file. * @locale */ currencyPrecision: 2, /** * @property {String} currencySign * The currency sign that the {@link #currency} function displays. * * This may be overridden in a locale file. * @locale */ currencySign: '$', /** * @property {String} [currencySpacer=''] * True to add a space between the currency and the value * * This may be overridden in a locale file. * @since 6.2.0 * @locale */ currencySpacer: '', /** * @property {String} percentSign * The percent sign that the {@link #percent} function displays. * * This may be overridden in a locale file. * @locale */ percentSign: '%', /** * @property {Boolean} currencyAtEnd * This may be set to <code>true</code> to make the {@link #currency} function * append the currency sign to the formatted value. * * This may be overridden in a locale file. * @locale */ currencyAtEnd: false, stripTagsRe: /<\/?[^>]+>/gi, stripScriptsRe: /(?:<script.*?>)((\n|\r|.)*?)(?:<\/script>)/ig, nl2brRe: /\r?\n/g, hashRe: /#+$/, allHashes: /^#+$/, // Match a format string characters to be able to detect remaining "literal" characters formatPattern: /[\d,\.#]+/, // A RegExp to remove from a number format string, all characters except digits and '.' formatCleanRe: /[^\d\.#]/g, // A RegExp to remove from a number format string, all characters except digits and the local decimal separator. // Created on first use. The local decimal separator character must be initialized for this to be created. I18NFormatCleanRe: null, // Cache ofg number formatting functions keyed by format string formatFns: {}, constructor: function () { me = this; // we are a singleton, so cache our this pointer in scope }, /** * Returns a non-breaking space ("NBSP") for any "blank" value. * @param {Mixed} value * @param {Boolean} [strict=true] Pass `false` to convert all falsey values to an * NBSP. By default, only '', `null` and `undefined` will be converted. * @return {Mixed} * @since 6.2.0 */ nbsp: function (value, strict) { strict = strict !== false; if (strict ? value === '' || value == null : !value) { value = '\xA0'; } return value; }, /** * Checks a reference and converts it to empty string if it is undefined. * @param {Object} value Reference to check * @return {Object} Empty string if converted, otherwise the original value */ undef : function(value) { return value !== undefined ? value : ""; }, /** * Checks a reference and converts it to the default value if it's empty. * @param {Object} value Reference to check * @param {String} [defaultValue=""] The value to insert of it's undefined. * @return {String} */ defaultValue : function(value, defaultValue) { return value !== undefined && value !== '' ? value : defaultValue; }, /** * Returns a substring from within an original string. * @param {String} value The original text * @param {Number} start The start index of the substring * @param {Number} length The length of the substring * @return {String} The substring * @method */ substr : 'ab'.substr(-1) != 'b' ? function (value, start, length) { var str = String(value); return (start < 0) ? str.substr(Math.max(str.length + start, 0), length) : str.substr(start, length); } : function(value, start, length) { return String(value).substr(start, length); }, /** * Converts a string to all lower case letters. * @param {String} value The text to convert * @return {String} The converted text */ lowercase : function(value) { return String(value).toLowerCase(); }, /** * Converts a string to all upper case letters. * @param {String} value The text to convert * @return {String} The converted text */ uppercase : function(value) { return String(value).toUpperCase(); }, /** * Format a number as US currency. * @param {Number/String} value The numeric value to format * @return {String} The formatted currency string */ usMoney : function(v) { return me.currency(v, '$', 2); }, /** * Format a number as a currency. * @param {Number/String} value The numeric value to format * @param {String} [sign] The currency sign to use (defaults to {@link #currencySign}) * @param {Number} [decimals] The number of decimals to use for the currency * (defaults to {@link #currencyPrecision}) * @param {Boolean} [end] True if the currency sign should be at the end of the string * (defaults to {@link #currencyAtEnd}) * @param {String} [currencySpacer] True to add a space between the currency and value * @return {String} The formatted currency string */ currency: function(v, currencySign, decimals, end, currencySpacer) { var negativeSign = '', format = ",0", i = 0; v = v - 0; if (v < 0) { v = -v; negativeSign = '-'; } decimals = Ext.isDefined(decimals) ? decimals : me.currencyPrecision; format += (decimals > 0 ? '.' : ''); for (; i < decimals; i++) { format += '0'; } v = me.number(v, format); if (currencySpacer == null) { currencySpacer = me.currencySpacer; } if ((end || me.currencyAtEnd) === true) { return Ext.String.format("{0}{1}{2}{3}", negativeSign, v, currencySpacer, currencySign || me.currencySign); } else { return Ext.String.format("{0}{1}{2}{3}", negativeSign, currencySign || me.currencySign, currencySpacer,v); } }, /** * Formats the passed date using the specified format pattern. * Note that this uses the native Javascript Date.parse() method and is therefore subject to its idiosyncrasies. * Most formats assume the local timezone unless specified. One notable exception is 'YYYY-MM-DD' (note the dashes) * which is typically interpreted in UTC and can cause date shifting. * * @param {String/Date} value The value to format. Strings must conform to the format * expected by the JavaScript Date object's * [parse() method](http://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Date/parse). * @param {String} [format] Any valid date format string. Defaults to {@link Ext.Date#defaultFormat}. * @return {String} The formatted date string. */ date: function(value, format) { if (!value) { return ""; } if (!Ext.isDate(value)) { value = new Date(Date.parse(value)); } return Ext.Date.dateFormat(value, format || Ext.Date.defaultFormat); }, /** * Returns a date rendering function that can be reused to apply a date format multiple times efficiently. * @param {String} format Any valid date format string. Defaults to {@link Ext.Date#defaultFormat}. * @return {Function} The date formatting function */ dateRenderer : function(format) { return function(v) { return me.date(v, format); }; }, /** * Returns the given number as a base 16 string at least `digits` in length. If * the number is fewer digits, 0's are prepended as necessary. If `digits` is * negative, the absolute value is the *exact* number of digits to return. In this * case, if then number has more digits, only the least significant digits are * returned. * * expect(Ext.util.Format.hex(0x12e4, 2)).toBe('12e4'); * expect(Ext.util.Format.hex(0x12e4, -2)).toBe('e4'); * expect(Ext.util.Format.hex(0x0e, 2)).toBe('0e'); * * @param {Number} value The number to format in hex. * @param {Number} digits * @return {string} */ hex: function (value, digits) { var s = parseInt(value || 0, 10).toString(16); if (digits) { if (digits < 0) { digits = -digits; if (s.length > digits) { s = s.substring(s.length - digits); } } while (s.length < digits) { s = '0' + s; } } return s; }, /** * Returns this result: * * value || orValue * * The usefulness of this formatter method is in templates. For example: * * {foo:or("bar")} * * @param {Boolean} value The "if" value. * @param {Mixed} orValue */ or: function (value, orValue) { return value || orValue; }, /** * If `value` is a number, returns the argument from that index. For example * * var s = Ext.util.Format.pick(2, 'zero', 'one', 'two'); * // s === 'two' * * Otherwise, `value` is treated in a truthy/falsey manner like so: * * var s = Ext.util.Format.pick(null, 'first', 'second'); * // s === 'first' * * s = Ext.util.Format.pick({}, 'first', 'second'); * // s === 'second' * * The usefulness of this formatter method is in templates. For example: * * {foo:pick("F","T")} * * {bar:pick("first","second","third")} * * @param {Boolean} value The "if" value. * @param {Mixed} firstValue * @param {Mixed} secondValue */ pick: function (value, firstValue, secondValue) { if (Ext.isNumber(value)) { var ret = arguments[value + 1]; if (ret) { return ret; } } return value ? secondValue : firstValue; }, /** * Compares `value` against `threshold` and returns: * * - if `value` < `threshold` then it returns `below` * - if `value` > `threshold` then it returns `above` * - if `value` = `threshold` then it returns `equal` or `above` when `equal` is missing * * The usefulness of this formatter method is in templates. For example: * * {foo:lessThanElse(0, 'negative', 'positive')} * * {bar:lessThanElse(200, 'lessThan200', 'greaterThan200', 'equalTo200')} * * @param {Number} value Value that will be checked * @param {Number} threshold Value to compare against * @param {Mixed} below Value to return when `value` < `threshold` * @param {Mixed} above Value to return when `value` > `threshold`. If `value` = `threshold` and * `equal` is missing then `above` is returned. * @param {Mixed} equal Value to return when `value` = `threshold` * @return {Mixed} */ lessThanElse: function (value, threshold, below, above, equal) { var v = Ext.Number.from(value, 0), t = Ext.Number.from(threshold, 0), missing = !Ext.isDefined(equal); return v < t ? below : (v > t ? above : (missing ? above : equal)); }, /** * Checks if `value` is a positive or negative number and returns the proper param. * * The usefulness of this formatter method is in templates. For example: * * {foo:sign("clsNegative","clsPositive")} * * @param {Number} value * @param {Mixed} negative * @param {Mixed} positive * @param {Mixed} zero * @return {Mixed} */ sign: function (value, negative, positive, zero) { if (zero === undefined) { zero = positive; } return me.lessThanElse(value, 0, negative, positive, zero); }, /** * Strips all HTML tags. * @param {Object} value The text from which to strip tags * @return {String} The stripped text */ stripTags: function(value) { return !value ? value : String(value).replace(me.stripTagsRe, ""); }, /** * Strips all script tags. * @param {Object} value The text from which to strip script tags * @return {String} The stripped text */ stripScripts : function(value) { return !value ? value : String(value).replace(me.stripScriptsRe, ""); }, /** * @method * Simple format for a file size (xxx bytes, xxx KB, xxx MB). * @param {Number/String} size The numeric value to format * @return {String} The formatted file size */ fileSize : (function(){ var byteLimit = 1024, kbLimit = 1048576, mbLimit = 1073741824; return function(size) { var out; if (size < byteLimit) { if (size === 1) { out = '1 byte'; } else { out = size + ' bytes'; } } else if (size < kbLimit) { out = (Math.round(((size*10) / byteLimit))/10) + ' KB'; } else if (size < mbLimit) { out = (Math.round(((size*10) / kbLimit))/10) + ' MB'; } else { out = (Math.round(((size*10) / mbLimit))/10) + ' GB'; } return out; }; })(), /** * It does simple math for use in a template, for example: * * var tpl = new Ext.Template('{value} * 10 = {value:math("* 10")}'); * * @return {Function} A function that operates on the passed value. * @method */ math : (function(){ var fns = {}; return function(v, a){ if (!fns[a]) { fns[a] = Ext.functionFactory('v', 'return v ' + a + ';'); } return fns[a](v); }; }()), /** * Rounds the passed number to the required decimal precision. * @param {Number/String} value The numeric value to round. * @param {Number} [precision] The number of decimal places to which to round the * first parameter's value. If `undefined` the `value` is passed to `Math.round` * otherwise the value is returned unmodified. * @return {Number} The rounded value. */ round : function(value, precision) { var result = Number(value); if (typeof precision === 'number') { precision = Math.pow(10, precision); result = Math.round(value * precision) / precision; } else if (precision === undefined) { result = Math.round(result); } return result; }, /** * Formats the passed number according to the passed format string. * * The number of digits after the decimal separator character specifies the number of * decimal places in the resulting string. The *local-specific* decimal character is * used in the result. * * The *presence* of a thousand separator character in the format string specifies that * the *locale-specific* thousand separator (if any) is inserted separating thousand groups. * * By default, "," is expected as the thousand separator, and "." is expected as the decimal separator. * * Locale-specific characters are always used in the formatted output when inserting * thousand and decimal separators. These can be set using the {@link #thousandSeparator} and * {@link #decimalSeparator} options. * * The format string must specify separator characters according to US/UK conventions ("," as the * thousand separator, and "." as the decimal separator) * * To allow specification of format strings according to local conventions for separator characters, add * the string `/i` to the end of the format string. This format depends on the {@link #thousandSeparator} and * {@link #decimalSeparator} options. For example, if using European style separators, then the format string * can be specified as `'0.000,00'`. This would be equivalent to using `'0,000.00'` when using US style formatting. * * Examples (123456.789): * * - `0` - (123457) show only digits, no precision * - `0.00` - (123456.79) show only digits, 2 precision * - `0.0000` - (123456.7890) show only digits, 4 precision * - `0,000` - (123,457) show comma and digits, no precision * - `0,000.00` - (123,456.79) show comma and digits, 2 precision * - `0,0.00` - (123,456.79) shortcut method, show comma and digits, 2 precision * - `0.####` - (123,456.789) Allow maximum 4 decimal places, but do not right pad with zeroes * - `0.00##` - (123456.789) Show at least 2 decimal places, maximum 4, but do not right pad with zeroes * * @param {Number} v The number to format. * @param {String} formatString The way you would like to format this text. * @return {String} The formatted number. */ number : function(v, formatString) { if (!formatString) { return v; } if (isNaN(v)) { return ''; } var formatFn = me.formatFns[formatString]; // Generate formatting function to be cached and reused keyed by the format string. // This results in a 100% performance increase over analyzing the format string each invocation. if (!formatFn) { var originalFormatString = formatString, comma = me.thousandSeparator, decimalSeparator = me.decimalSeparator, precision = 0, trimPart = '', hasComma, splitFormat, extraChars, trimTrailingZeroes, code, len; // The "/i" suffix allows caller to use a locale-specific formatting string. // Clean the format string by removing all but numerals and the decimal separator. // Then split the format string into pre and post decimal segments according to *what* the // decimal separator is. If they are specifying "/i", they are using the local convention in the format string. if (formatString.substr(formatString.length - 2) === '/i') { // In a vast majority of cases, the separator will never change over the lifetime of the application. // So we'll only regenerate this if we really need to if (!me.I18NFormatCleanRe || me.lastDecimalSeparator !== decimalSeparator) { me.I18NFormatCleanRe = new RegExp('[^\\d\\' + decimalSeparator + '#]','g'); me.lastDecimalSeparator = decimalSeparator; } formatString = formatString.substr(0, formatString.length - 2); hasComma = formatString.indexOf(comma) !== -1; splitFormat = formatString.replace(me.I18NFormatCleanRe, '').split(decimalSeparator); } else { hasComma = formatString.indexOf(',') !== -1; splitFormat = formatString.replace(me.formatCleanRe, '').split('.'); } extraChars = formatString.replace(me.formatPattern, ''); if (splitFormat.length > 2) { //<debug> Ext.raise({ sourceClass: "Ext.util.Format", sourceMethod: "number", value: v, formatString: formatString, msg: "Invalid number format, should have no more than 1 decimal" }); //</debug> } else if (splitFormat.length === 2) { precision = splitFormat[1].length; // Formatting ending in .##### means maximum 5 trailing significant digits trimTrailingZeroes = splitFormat[1].match(me.hashRe); if (trimTrailingZeroes) { len = trimTrailingZeroes[0].length; // Need to escape, since this will be '.' by default trimPart = 'trailingZeroes=new RegExp(Ext.String.escapeRegex(utilFormat.decimalSeparator) + "*0{0,' + len + '}$")'; } } // The function we create is called immediately and returns a closure which has access to vars and some fixed values; RegExes and the format string. code = [ 'var utilFormat=Ext.util.Format,extNumber=Ext.Number,neg,absVal,fnum,parts' + (hasComma ? ',thousandSeparator,thousands=[],j,n,i' : '') + (extraChars ? ',formatString="' + formatString + '",formatPattern=/[\\d,\\.#]+/' : '') + ',trailingZeroes;' + 'return function(v){' + 'if(typeof v!=="number"&&isNaN(v=extNumber.from(v,NaN)))return"";' + 'neg=v<0;', 'absVal=Math.abs(v);', 'fnum=Ext.Number.toFixed(absVal, ' + precision + ');', trimPart, ';' ]; if (hasComma) { // If we have to insert commas... // split the string up into whole and decimal parts if there are decimals if (precision) { code[code.length] = 'parts=fnum.split(".");'; code[code.length] = 'fnum=parts[0];'; } code[code.length] = 'if(absVal>=1000) {'; code[code.length] = 'thousandSeparator=utilFormat.thousandSeparator;' + 'thousands.length=0;' + 'j=fnum.length;' + 'n=fnum.length%3||3;' + 'for(i=0;i<j;i+=n){' + 'if(i!==0){' + 'n=3;' + '}' + 'thousands[thousands.length]=fnum.substr(i,n);' + '}' + 'fnum=thousands.join(thousandSeparator);' + '}'; if (precision) { code[code.length] = 'fnum += utilFormat.decimalSeparator+parts[1];'; } } else if (precision) { // If they are using a weird decimal separator, split and concat using it code[code.length] = 'if(utilFormat.decimalSeparator!=="."){' + 'parts=fnum.split(".");' + 'fnum=parts[0]+utilFormat.decimalSeparator+parts[1];' + '}'; } /* * Edge case. If we have a very small negative number it will get rounded to 0, * however the initial check at the top will still report as negative. Replace * everything but 1-9 and check if the string is empty to determine a 0 value. */ code[code.length] = 'if(neg&&fnum!=="' + (precision ? '0.' + Ext.String.repeat('0', precision) : '0') + '") { fnum="-"+fnum; }'; if (trimTrailingZeroes) { code[code.length] = 'fnum=fnum.replace(trailingZeroes,"");'; } code[code.length] = 'return '; // If there were extra characters around the formatting string, replace the format string part with the formatted number. if (extraChars) { code[code.length] = 'formatString.replace(formatPattern, fnum);'; } else { code[code.length] = 'fnum;'; } code[code.length] = '};'; formatFn = me.formatFns[originalFormatString] = Ext.functionFactory('Ext', code.join(''))(Ext); } return formatFn(v); }, /** * Returns a number rendering function that can be reused to apply a number format multiple * times efficiently. * * @param {String} format Any valid number format string for {@link #number} * @return {Function} The number formatting function */ numberRenderer : function(format) { return function(v) { return me.number(v, format); }; }, /** * Formats the passed number as a percentage according to the passed format string. * The number should be between 0 and 1 to represent 0% to 100%. * * @param {Number} value The percentage to format. * @param {String} [formatString="0"] See {@link #number} for details. * @return {String} The formatted percentage. */ percent: function (value, formatString) { return me.number(value * 100, formatString || '0') + me.percentSign; }, /** * Formats an object of name value properties as HTML element attribute values suitable for using when creating textual markup. * @param {Object} attributes An object containing the HTML attributes as properties eg: `{height:40, vAlign:'top'}` */ attributes: function(attributes) { if (typeof attributes === 'object') { var result = [], name; for (name in attributes) { if (attributes.hasOwnProperty(name)) { result.push(name, '="', name === 'style' ? Ext.DomHelper.generateStyles(attributes[name], null, true) : Ext.htmlEncode(attributes[name]), '" '); } } attributes = result.join(''); } return attributes || ''; }, /** * Selectively return the plural form of a word based on a numeric value. * * For example, the following template would result in "1 Comment". If the * value of `count` was 0 or greater than 1, the result would be "x Comments". * * var tpl = new Ext.XTemplate('{count:plural("Comment")}'); * * tpl.apply({ * count: 1 * }); // returns "1 Comment" * * Examples using the static `plural` method call: * * Ext.util.Format.plural(2, 'Comment'); * // returns "2 Comments" * * Ext.util.Format.plural(4, 'person', 'people'); * // returns "4 people" * * @param {Number} value The value to compare against * @param {String} singular The singular form of the word * @param {String} [plural] The plural form of the word (defaults to the * singular form with an "s" appended) * @return {String} output The pluralized output of the passed singular form */ plural : function(value, singular, plural) { return value +' ' + (value === 1 ? singular : (plural ? plural : singular+'s')); }, /** * Converts newline characters to the HTML tag `<br/>` * * @param {String} v The string value to format. * @return {String} The string with embedded `<br/>` tags in place of newlines. */ nl2br : function(v) { return Ext.isEmpty(v) ? '' : v.replace(me.nl2brRe, '<br/>'); }, /** * Alias for {@link Ext.String#capitalize}. * @method * @inheritdoc Ext.String#capitalize */ capitalize: Ext.String.capitalize, /** * Alias for {@link Ext.String#uncapitalize}. * @method * @inheritdoc Ext.String#uncapitalize */ uncapitalize: Ext.String.uncapitalize, /** * Alias for {@link Ext.String#ellipsis}. * @method * @inheritdoc Ext.String#ellipsis */ ellipsis: Ext.String.ellipsis, /** * Alias for {@link Ext.String#escape}. * @method * @inheritdoc Ext.String#escape */ escape: Ext.String.escape, /** * Alias for {@link Ext.String#escapeRegex}. * @method * @inheritdoc Ext.String#escapeRegex */ escapeRegex : Ext.String.escapeRegex, /** * Alias for {@link Ext.String#htmlDecode}. * @method * @inheritdoc Ext.String#htmlDecode */ htmlDecode: Ext.String.htmlDecode, /** * Alias for {@link Ext.String#htmlEncode}. * @method * @inheritdoc Ext.String#htmlEncode */ htmlEncode: Ext.String.htmlEncode, /** * Alias for {@link Ext.String#leftPad}. * @method * @inheritdoc Ext.String#leftPad */ leftPad: Ext.String.leftPad, /** * Alias for {@link Ext.String#toggle}. * @method * @inheritdoc Ext.String#toggle */ toggle: Ext.String.toggle, /** * Alias for {@link Ext.String#trim}. * @method * @inheritdoc Ext.String#trim */ trim : Ext.String.trim, /** * Parses a number or string representing margin sizes into an object. * Supports CSS-style margin declarations (e.g. 10, "10", "10 10", "10 10 10" and * "10 10 10 10" are all valid options and would return the same result). * * @param {Number/String} box The encoded margins * @return {Object} An object with margin sizes for top, right, bottom and left */ parseBox : function(box) { box = box || 0; if (typeof box === 'number') { return { top : box, right : box, bottom: box, left : box }; } var parts = box.split(' '), ln = parts.length; if (ln === 1) { parts[1] = parts[2] = parts[3] = parts[0]; } else if (ln === 2) { parts[2] = parts[0]; parts[3] = parts[1]; } else if (ln === 3) { parts[3] = parts[1]; } return { top :parseInt(parts[0], 10) || 0, right :parseInt(parts[1], 10) || 0, bottom:parseInt(parts[2], 10) || 0, left :parseInt(parts[3], 10) || 0 }; }, /** * Formats the given value using `encodeURI`. * @param {String} value The value to encode. * @returns {string} * @since 6.2.0 */ uri: function (value) { return encodeURI(value); }, /** * Formats the given value using `encodeURIComponent`. * @param {String} value The value to encode. * @returns {string} * @since 6.2.0 */ uriCmp: function (value) { return encodeURIComponent(value); }, wordBreakRe: /[\W\s]+/, /** * Returns the word at the given `index`. Spaces and punctuation are considered * as word separators by default. For example: * * console.log(Ext.util.Format.word('Hello, my name is Bob.', 2); * // == 'name' * * @param {String} value The sentence to break into words. * @param {Number} index The 0-based word index. * @param {String/RegExp} [sep="[\W\s]+"] The pattern by which to separate words. * @return {String} The requested word or empty string. */ word: function (value, index, sep) { var re = sep ? (typeof sep === 'string' ? new RegExp(sep) : sep) : me.wordBreakRe, parts = (value || '').split(re); return parts[index || 0] || ''; } };});