3 <title>The source code</title>
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8 <pre class="prettyprint lang-js">/*!
10 * Copyright(c) 2006-2009 Ext JS, LLC
12 * http://www.extjs.com/license
14 <div id="cls-Ext.util.Format"></div>/**
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15 * @class Ext.util.Format
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16 * Reusable data formatting functions
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19 Ext.util.Format = function(){
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20 var trimRe = /^\s+|\s+$/g;
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22 <div id="method-Ext.util.Format-ellipsis"></div>/**
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23 * Truncate a string and add an ellipsis ('...') to the end if it exceeds the specified length
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24 * @param {String} value The string to truncate
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25 * @param {Number} length The maximum length to allow before truncating
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26 * @param {Boolean} word True to try to find a common work break
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27 * @return {String} The converted text
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29 ellipsis : function(value, len, word){
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30 if(value && value.length > len){
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32 var vs = value.substr(0, len - 2);
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33 var index = Math.max(vs.lastIndexOf(' '), vs.lastIndexOf('.'), vs.lastIndexOf('!'), vs.lastIndexOf('?'));
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34 if(index == -1 || index < (len - 15)){
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35 return value.substr(0, len - 3) + "...";
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37 return vs.substr(0, index) + "...";
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40 return value.substr(0, len - 3) + "...";
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46 <div id="method-Ext.util.Format-undef"></div>/**
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47 * Checks a reference and converts it to empty string if it is undefined
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48 * @param {Mixed} value Reference to check
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49 * @return {Mixed} Empty string if converted, otherwise the original value
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51 undef : function(value){
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52 return value !== undefined ? value : "";
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55 <div id="method-Ext.util.Format-defaultValue"></div>/**
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56 * Checks a reference and converts it to the default value if it's empty
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57 * @param {Mixed} value Reference to check
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58 * @param {String} defaultValue The value to insert of it's undefined (defaults to "")
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61 defaultValue : function(value, defaultValue){
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62 return value !== undefined && value !== '' ? value : defaultValue;
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65 <div id="method-Ext.util.Format-htmlEncode"></div>/**
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66 * Convert certain characters (&, <, >, and ') to their HTML character equivalents for literal display in web pages.
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67 * @param {String} value The string to encode
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68 * @return {String} The encoded text
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70 htmlEncode : function(value){
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71 return !value ? value : String(value).replace(/&/g, "&").replace(/>/g, ">").replace(/</g, "<").replace(/"/g, """);
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74 <div id="method-Ext.util.Format-htmlDecode"></div>/**
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75 * Convert certain characters (&, <, >, and ') from their HTML character equivalents.
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76 * @param {String} value The string to decode
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77 * @return {String} The decoded text
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79 htmlDecode : function(value){
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80 return !value ? value : String(value).replace(/>/g, ">").replace(/</g, "<").replace(/"/g, '"').replace(/&/g, "&");
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83 <div id="method-Ext.util.Format-trim"></div>/**
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84 * Trims any whitespace from either side of a string
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85 * @param {String} value The text to trim
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86 * @return {String} The trimmed text
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88 trim : function(value){
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89 return String(value).replace(trimRe, "");
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92 <div id="method-Ext.util.Format-substr"></div>/**
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93 * Returns a substring from within an original string
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94 * @param {String} value The original text
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95 * @param {Number} start The start index of the substring
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96 * @param {Number} length The length of the substring
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97 * @return {String} The substring
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99 substr : function(value, start, length){
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100 return String(value).substr(start, length);
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103 <div id="method-Ext.util.Format-lowercase"></div>/**
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104 * Converts a string to all lower case letters
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105 * @param {String} value The text to convert
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106 * @return {String} The converted text
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108 lowercase : function(value){
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109 return String(value).toLowerCase();
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112 <div id="method-Ext.util.Format-uppercase"></div>/**
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113 * Converts a string to all upper case letters
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114 * @param {String} value The text to convert
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115 * @return {String} The converted text
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117 uppercase : function(value){
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118 return String(value).toUpperCase();
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121 <div id="method-Ext.util.Format-capitalize"></div>/**
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122 * Converts the first character only of a string to upper case
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123 * @param {String} value The text to convert
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124 * @return {String} The converted text
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126 capitalize : function(value){
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127 return !value ? value : value.charAt(0).toUpperCase() + value.substr(1).toLowerCase();
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131 call : function(value, fn){
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132 if(arguments.length > 2){
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133 var args = Array.prototype.slice.call(arguments, 2);
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134 args.unshift(value);
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135 return eval(fn).apply(window, args);
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137 return eval(fn).call(window, value);
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141 <div id="method-Ext.util.Format-usMoney"></div>/**
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142 * Format a number as US currency
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143 * @param {Number/String} value The numeric value to format
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144 * @return {String} The formatted currency string
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146 usMoney : function(v){
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147 v = (Math.round((v-0)*100))/100;
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148 v = (v == Math.floor(v)) ? v + ".00" : ((v*10 == Math.floor(v*10)) ? v + "0" : v);
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150 var ps = v.split('.');
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152 var sub = ps[1] ? '.'+ ps[1] : '.00';
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153 var r = /(\d+)(\d{3})/;
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154 while (r.test(whole)) {
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155 whole = whole.replace(r, '$1' + ',' + '$2');
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158 if(v.charAt(0) == '-'){
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159 return '-$' + v.substr(1);
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164 <div id="method-Ext.util.Format-date"></div>/**
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165 * Parse a value into a formatted date using the specified format pattern.
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166 * @param {String/Date} value The value to format (Strings must conform to the format expected by the javascript Date object's <a href="http://www.w3schools.com/jsref/jsref_parse.asp">parse()</a> method)
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167 * @param {String} format (optional) Any valid date format string (defaults to 'm/d/Y')
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168 * @return {String} The formatted date string
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170 date : function(v, format){
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174 if(!Ext.isDate(v)){
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175 v = new Date(Date.parse(v));
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177 return v.dateFormat(format || "m/d/Y");
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180 <div id="method-Ext.util.Format-dateRenderer"></div>/**
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181 * Returns a date rendering function that can be reused to apply a date format multiple times efficiently
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182 * @param {String} format Any valid date format string
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183 * @return {Function} The date formatting function
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185 dateRenderer : function(format){
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186 return function(v){
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187 return Ext.util.Format.date(v, format);
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192 stripTagsRE : /<\/?[^>]+>/gi,
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194 <div id="method-Ext.util.Format-stripTags"></div>/**
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195 * Strips all HTML tags
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196 * @param {Mixed} value The text from which to strip tags
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197 * @return {String} The stripped text
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199 stripTags : function(v){
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200 return !v ? v : String(v).replace(this.stripTagsRE, "");
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203 stripScriptsRe : /(?:<script.*?>)((\n|\r|.)*?)(?:<\/script>)/ig,
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205 <div id="method-Ext.util.Format-stripScripts"></div>/**
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206 * Strips all script tags
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207 * @param {Mixed} value The text from which to strip script tags
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208 * @return {String} The stripped text
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210 stripScripts : function(v){
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211 return !v ? v : String(v).replace(this.stripScriptsRe, "");
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214 <div id="method-Ext.util.Format-fileSize"></div>/**
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215 * Simple format for a file size (xxx bytes, xxx KB, xxx MB)
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216 * @param {Number/String} size The numeric value to format
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217 * @return {String} The formatted file size
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219 fileSize : function(size){
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221 return size + " bytes";
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222 } else if(size < 1048576) {
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223 return (Math.round(((size*10) / 1024))/10) + " KB";
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225 return (Math.round(((size*10) / 1048576))/10) + " MB";
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229 <div id="method-Ext.util.Format-math"></div>/**
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230 * It does simple math for use in a template, for example:<pre><code>
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231 * var tpl = new Ext.Template('{value} * 10 = {value:math("* 10")}');
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233 * @return {Function} A function that operates on the passed value.
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237 return function(v, a){
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239 fns[a] = new Function('v', 'return v ' + a + ';');
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245 <div id="method-Ext.util.Format-round"></div>/**
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246 * Rounds the passed number to the required decimal precision.
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247 * @param {Number/String} value The numeric value to round.
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248 * @param {Number} precision The number of decimal places to which to round the first parameter's value.
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249 * @return {Number} The rounded value.
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251 round : function(value, precision) {
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252 var result = Number(value);
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253 if (typeof precision == 'number') {
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254 precision = Math.pow(10, precision);
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255 result = Math.round(value * precision) / precision;
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260 <div id="method-Ext.util.Format-number"></div>/**
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261 * Formats the number according to the format string.
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262 * <div style="margin-left:40px">examples (123456.789):
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263 * <div style="margin-left:10px">
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264 * 0 - (123456) show only digits, no precision<br>
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265 * 0.00 - (123456.78) show only digits, 2 precision<br>
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266 * 0.0000 - (123456.7890) show only digits, 4 precision<br>
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267 * 0,000 - (123,456) show comma and digits, no precision<br>
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268 * 0,000.00 - (123,456.78) show comma and digits, 2 precision<br>
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269 * 0,0.00 - (123,456.78) shortcut method, show comma and digits, 2 precision<br>
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270 * To reverse the grouping (,) and decimal (.) for international numbers, add /i to the end.
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271 * For example: 0.000,00/i
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273 * @param {Number} v The number to format.
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274 * @param {String} format The way you would like to format this text.
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275 * @return {String} The formatted number.
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277 number: function(v, format) {
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281 v = Ext.num(v, NaN);
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291 if(format.substr(format.length - 2) == '/i'){
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292 format = format.substr(0, format.length - 2);
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298 var hasComma = format.indexOf(comma) != -1,
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299 psplit = (i18n ? format.replace(/[^\d\,]/g, '') : format.replace(/[^\d\.]/g, '')).split(dec);
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301 if(1 < psplit.length){
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302 v = v.toFixed(psplit[1].length);
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303 }else if(2 < psplit.length){
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304 throw ('NumberFormatException: invalid format, formats should have no more than 1 period: ' + format);
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309 var fnum = v.toString();
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311 psplit = fnum.split('.');
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313 var cnum = psplit[0], parr = [], j = cnum.length, m = Math.floor(j / 3), n = cnum.length % 3 || 3;
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315 for(var i = 0; i < j; i += n){
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319 parr[parr.length] = cnum.substr(i, n);
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322 fnum = parr.join(comma);
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324 fnum += dec + psplit[1];
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328 return (neg ? '-' : '') + format.replace(/[\d,?\.?]+/, fnum);
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331 <div id="method-Ext.util.Format-numberRenderer"></div>/**
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332 * Returns a number rendering function that can be reused to apply a number format multiple times efficiently
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333 * @param {String} format Any valid number format string for {@link #number}
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334 * @return {Function} The number formatting function
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336 numberRenderer : function(format){
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337 return function(v){
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338 return Ext.util.Format.number(v, format);
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342 <div id="method-Ext.util.Format-plural"></div>/**
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343 * Selectively do a plural form of a word based on a numeric value. For example, in a template,
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344 * {commentCount:plural("Comment")} would result in "1 Comment" if commentCount was 1 or would be "x Comments"
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345 * if the value is 0 or greater than 1.
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346 * @param {Number} value The value to compare against
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347 * @param {String} singular The singular form of the word
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348 * @param {String} plural (optional) The plural form of the word (defaults to the singular with an "s")
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350 plural : function(v, s, p){
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351 return v +' ' + (v == 1 ? s : (p ? p : s+'s'));
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354 <div id="method-Ext.util.Format-nl2br"></div>/**
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355 * Converts newline characters to the HTML tag <br/>
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356 * @param {String} The string value to format.
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357 * @return {String} The string with embedded <br/> tags in place of newlines.
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359 nl2br : function(v){
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360 return v === undefined || v === null ? '' : v.replace(/\n/g, '<br/>');
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