git.roojs.org Git - web.mtrack/blob - js/jquery.tablesorter.js

   1 /*
   2  *
   3  * TableSorter 2.0 - Client-side table sorting with ease!
   4  * Version 2.0.3
   5  * @requires jQuery v1.2.3
   6  *
   7  * Copyright (c) 2007 Christian Bach
   8  * Examples and docs at: http://tablesorter.com
   9  * Dual licensed under the MIT and GPL licenses:
  10  * http://www.opensource.org/licenses/mit-license.php
  11  * http://www.gnu.org/licenses/gpl.html
  12  *
  13  */
  14 /**
  15  *
  16  * @description Create a sortable table with multi-column sorting capabilitys
  17  *
  18  * @example $('table').tablesorter();
  19  * @desc Create a simple tablesorter interface.
  20  *
  21  * @example $('table').tablesorter({ sortList:[[0,0],[1,0]] });
  22  * @desc Create a tablesorter interface and sort on the first and secound column in ascending order.
  23  *
  24  * @example $('table').tablesorter({ headers: { 0: { sorter: false}, 1: {sorter: false} } });
  25  * @desc Create a tablesorter interface and disableing the first and secound column headers.
  26  *
  27  * @example $('table').tablesorter({ 0: {sorter:"integer"}, 1: {sorter:"currency"} });
  28  * @desc Create a tablesorter interface and set a column parser for the first and secound column.
  29  *
  30  *
  31  * @param Object settings An object literal containing key/value pairs to provide optional settings.
  32  *
  33  * @option String cssHeader (optional)                  A string of the class name to be appended to sortable tr elements in the thead of the table.
  34  *                                                                                              Default value: "header"
  35  *
  36  * @option String cssAsc (optional)                     A string of the class name to be appended to sortable tr elements in the thead on a ascending sort.
  37  *                                                                                              Default value: "headerSortUp"
  38  *
  39  * @option String cssDesc (optional)                    A string of the class name to be appended to sortable tr elements in the thead on a descending sort.
  40  *                                                                                              Default value: "headerSortDown"
  41  *
  42  * @option String sortInitialOrder (optional)   A string of the inital sorting order can be asc or desc.
  43  *                                                                                              Default value: "asc"
  44  *
  45  * @option String sortMultisortKey (optional)   A string of the multi-column sort key.
  46  *                                                                                              Default value: "shiftKey"
  47  *
  48  * @option String textExtraction (optional)     A string of the text-extraction method to use.
  49  *                                                                                              For complex html structures inside td cell set this option to "complex",
  50  *                                                                                              on large tables the complex option can be slow.
  51  *                                                                                              Default value: "simple"
  52  *
  53  * @option Object headers (optional)                    An array containing the forces sorting rules.
  54  *                                                                                              This option let's you specify a default sorting rule.
  55  *                                                                                              Default value: null
  56  *
  57  * @option Array sortList (optional)                    An array containing the forces sorting rules.
  58  *                                                                                              This option let's you specify a default sorting rule.
  59  *                                                                                              Default value: null
  60  *
  61  * @option Array sortForce (optional)                   An array containing forced sorting rules.
  62  *                                                                                              This option let's you specify a default sorting rule, which is prepended to user-selected rules.
  63  *                                                                                              Default value: null
  64  *
  65   * @option Array sortAppend (optional)                         An array containing forced sorting rules.
  66  *                                                                                              This option let's you specify a default sorting rule, which is appended to user-selected rules.
  67  *                                                                                              Default value: null
  68  *
  69  * @option Boolean widthFixed (optional)                Boolean flag indicating if tablesorter should apply fixed widths to the table columns.
  70  *                                                                                              This is usefull when using the pager companion plugin.
  71  *                                                                                              This options requires the dimension jquery plugin.
  72  *                                                                                              Default value: false
  73  *
  74  * @option Boolean cancelSelection (optional)   Boolean flag indicating if tablesorter should cancel selection of the table headers text.
  75  *                                                                                              Default value: true
  76  *
  77  * @option Boolean debug (optional)                     Boolean flag indicating if tablesorter should display debuging information usefull for development.
  78  *
  79  * @type jQuery
  80  *
  81  * @name tablesorter
  82  *
  83  * @cat Plugins/Tablesorter
  84  *
  85  * @author Christian Bach/christian.bach@polyester.se
  86  */
  87
  88 (function($) {
  89         $.extend({
  90                 tablesorter: new function() {
  91
  92                         var parsers = [], widgets = [];
  93
  94                         this.defaults = {
  95                                 cssHeader: "header",
  96                                 cssAsc: "headerSortUp",
  97                                 cssDesc: "headerSortDown",
  98                                 sortInitialOrder: "asc",
  99                                 sortMultiSortKey: "shiftKey",
 100                                 sortForce: null,
 101                                 sortAppend: null,
 102                                 textExtraction: "simple",
 103                                 parsers: {},
 104                                 widgets: [],
 105                                 widgetZebra: {css: ["even","odd"]},
 106                                 headers: {},
 107                                 widthFixed: false,
 108                                 cancelSelection: true,
 109                                 sortList: [],
 110                                 headerList: [],
 111                                 dateFormat: "us",
 112                                 decimal: '.',
 113                                 debug: false
 114                         };
 115
 116                         /* debuging utils */
 117                         function benchmark(s,d) {
 118                                 log(s + "," + (new Date().getTime() - d.getTime()) + "ms");
 119                         }
 120
 121                         this.benchmark = benchmark;
 122
 123                         function log(s) {
 124                                 if (typeof console != "undefined" && typeof console.debug != "undefined") {
 125                                         console.log(s);
 126                                 } else {
 127                                         alert(s);
 128                                 }
 129                         }
 130
 131                         /* parsers utils */
 132                         function buildParserCache(table,$headers) {
 133
 134                                 if(table.config.debug) { var parsersDebug = ""; }
 135
 136                                 var rows = table.tBodies[0].rows;
 137
 138                                 if(table.tBodies[0].rows[0]) {
 139
 140                                         var list = [], cells = rows[0].cells, l = cells.length;
 141
 142                                         for (var i=0;i < l; i++) {
 143                                                 var p = false;
 144
 145                                                 if($.metadata && ($($headers[i]).metadata() && $($headers[i]).metadata().sorter)  ) {
 146
 147                                                         p = getParserById($($headers[i]).metadata().sorter);
 148
 149                                                 } else if((table.config.headers[i] && table.config.headers[i].sorter)) {
 150
 151                                                         p = getParserById(table.config.headers[i].sorter);
 152                                                 }
 153                                                 if(!p) {
 154                                                         p = detectParserForColumn(table,cells[i]);
 155                                                 }
 156
 157                                                 if(table.config.debug) { parsersDebug += "column:" + i + " parser:" +p.id + "\n"; }
 158
 159                                                 list.push(p);
 160                                         }
 161                                 }
 162
 163                                 if(table.config.debug) { log(parsersDebug); }
 164
 165                                 return list;
 166                         };
 167
 168                         function detectParserForColumn(table,node) {
 169                                 var l = parsers.length;
 170                                 for(var i=1; i < l; i++) {
 171                                         if(parsers[i].is($.trim(getElementText(table.config,node)),table,node)) {
 172                                                 return parsers[i];
 173                                         }
 174                                 }
 175                                 // 0 is always the generic parser (text)
 176                                 return parsers[0];
 177                         }
 178
 179                         function getParserById(name) {
 180                                 var l = parsers.length;
 181                                 for(var i=0; i < l; i++) {
 182                                         if(parsers[i].id.toLowerCase() == name.toLowerCase()) {
 183                                                 return parsers[i];
 184                                         }
 185                                 }
 186                                 return false;
 187                         }
 188
 189                         /* utils */
 190                         function buildCache(table) {
 191
 192                                 if(table.config.debug) { var cacheTime = new Date(); }
 193
 194
 195                                 var totalRows = (table.tBodies[0] && table.tBodies[0].rows.length) || 0,
 196                                         totalCells = (table.tBodies[0].rows[0] && table.tBodies[0].rows[0].cells.length) || 0,
 197                                         parsers = table.config.parsers,
 198                                         cache = {row: [], normalized: []};
 199
 200                                         for (var i=0;i < totalRows; ++i) {
 201
 202                                                 /** Add the table data to main data array */
 203                                                 var c = table.tBodies[0].rows[i], cols = [];
 204
 205                                                 cache.row.push($(c));
 206
 207                                                 for(var j=0; j < totalCells; ++j) {
 208                                                         cols.push(parsers[j].format(getElementText(table.config,c.cells[j]),table,c.cells[j]));
 209                                                 }
 210
 211                                                 cols.push(i); // add position for rowCache
 212                                                 cache.normalized.push(cols);
 213                                                 cols = null;
 214                                         };
 215
 216                                 if(table.config.debug) { benchmark("Building cache for " + totalRows + " rows:", cacheTime); }
 217
 218                                 return cache;
 219                         };
 220
 221                         function getElementText(config,node) {
 222
 223                                 if(!node) return "";
 224
 225                                 var t = "";
 226
 227                                 if(config.textExtraction == "simple") {
 228                                         if(node.childNodes[0] && node.childNodes[0].hasChildNodes()) {
 229                                                 t = node.childNodes[0].innerHTML;
 230                                         } else {
 231                                                 t = node.innerHTML;
 232                                         }
 233                                 } else {
 234                                         if(typeof(config.textExtraction) == "function") {
 235                                                 t = config.textExtraction(node);
 236                                         } else {
 237                                                 t = $(node).text();
 238                                         }
 239                                 }
 240                                 return t;
 241                         }
 242
 243                         function appendToTable(table,cache) {
 244
 245                                 if(table.config.debug) {var appendTime = new Date()}
 246
 247                                 var c = cache,
 248                                         r = c.row,
 249                                         n= c.normalized,
 250                                         totalRows = n.length,
 251                                         checkCell = (n[0].length-1),
 252                                         tableBody = $(table.tBodies[0]),
 253                                         rows = [];
 254
 255                                 for (var i=0;i < totalRows; i++) {
 256                                         rows.push(r[n[i][checkCell]]);
 257                                         if(!table.config.appender) {
 258
 259                                                 var o = r[n[i][checkCell]];
 260                                                 var l = o.length;
 261                                                 for(var j=0; j < l; j++) {
 262
 263                                                         tableBody[0].appendChild(o[j]);
 264
 265                                                 }
 266
 267                                                 //tableBody.append(r[n[i][checkCell]]);
 268                                         }
 269                                 }
 270
 271                                 if(table.config.appender) {
 272
 273                                         table.config.appender(table,rows);
 274                                 }
 275
 276                                 rows = null;
 277
 278                                 if(table.config.debug) { benchmark("Rebuilt table:", appendTime); }
 279
 280                                 //apply table widgets
 281                                 applyWidget(table);
 282
 283                                 // trigger sortend
 284                                 setTimeout(function() {
 285                                         $(table).trigger("sortEnd");
 286                                 },0);
 287
 288                         };
 289
 290                         function buildHeaders(table) {
 291
 292                                 if(table.config.debug) { var time = new Date(); }
 293
 294                                 var meta = ($.metadata) ? true : false, tableHeadersRows = [];
 295
 296                                 for(var i = 0; i < table.tHead.rows.length; i++) { tableHeadersRows[i]=0; };
 297
 298                                 $tableHeaders = $("thead th",table);
 299
 300                                 $tableHeaders.each(function(index) {
 301
 302                                         this.count = 0;
 303                                         this.column = index;
 304                                         this.order = formatSortingOrder(table.config.sortInitialOrder);
 305
 306                                         if(checkHeaderMetadata(this) || checkHeaderOptions(table,index)) this.sortDisabled = true;
 307
 308                                         if(!this.sortDisabled) {
 309                                                 $(this).addClass(table.config.cssHeader);
 310                                         }
 311
 312                                         // add cell to headerList
 313                                         table.config.headerList[index]= this;
 314                                 });
 315
 316                                 if(table.config.debug) { benchmark("Built headers:", time); log($tableHeaders); }
 317
 318                                 return $tableHeaders;
 319
 320                         };
 321
 322                         function checkCellColSpan(table, rows, row) {
 323                 var arr = [], r = table.tHead.rows, c = r[row].cells;
 324
 325                                 for(var i=0; i < c.length; i++) {
 326                                         var cell = c[i];
 327
 328                                         if ( cell.colSpan > 1) {
 329                                                 arr = arr.concat(checkCellColSpan(table, headerArr,row++));
 330                                         } else  {
 331                                                 if(table.tHead.length == 1 || (cell.rowSpan > 1 || !r[row+1])) {
 332                                                         arr.push(cell);
 333                                                 }
 334                                                 //headerArr[row] = (i+row);
 335                                         }
 336                                 }
 337                                 return arr;
 338                         };
 339
 340                         function checkHeaderMetadata(cell) {
 341                                 if(($.metadata) && ($(cell).metadata().sorter === false)) { return true; };
 342                                 return false;
 343                         }
 344
 345                         function checkHeaderOptions(table,i) {
 346                                 if((table.config.headers[i]) && (table.config.headers[i].sorter === false)) { return true; };
 347                                 return false;
 348                         }
 349
 350                         function applyWidget(table) {
 351                                 var c = table.config.widgets;
 352                                 var l = c.length;
 353                                 for(var i=0; i < l; i++) {
 354
 355                                         getWidgetById(c[i]).format(table);
 356                                 }
 357
 358                         }
 359
 360                         function getWidgetById(name) {
 361                                 var l = widgets.length;
 362                                 for(var i=0; i < l; i++) {
 363                                         if(widgets[i].id.toLowerCase() == name.toLowerCase() ) {
 364                                                 return widgets[i];
 365                                         }
 366                                 }
 367                         };
 368
 369                         function formatSortingOrder(v) {
 370
 371                                 if(typeof(v) != "Number") {
 372                                         i = (v.toLowerCase() == "desc") ? 1 : 0;
 373                                 } else {
 374                                         i = (v == (0 || 1)) ? v : 0;
 375                                 }
 376                                 return i;
 377                         }
 378
 379                         function isValueInArray(v, a) {
 380                                 var l = a.length;
 381                                 for(var i=0; i < l; i++) {
 382                                         if(a[i][0] == v) {
 383                                                 return true;
 384                                         }
 385                                 }
 386                                 return false;
 387                         }
 388
 389                         function setHeadersCss(table,$headers, list, css) {
 390                                 // remove all header information
 391                                 $headers.removeClass(css[0]).removeClass(css[1]);
 392
 393                                 var h = [];
 394                                 $headers.each(function(offset) {
 395                                                 if(!this.sortDisabled) {
 396                                                         h[this.column] = $(this);
 397                                                 }
 398                                 });
 399
 400                                 var l = list.length;
 401                                 for(var i=0; i < l; i++) {
 402                                         h[list[i][0]].addClass(css[list[i][1]]);
 403                                 }
 404                         }
 405
 406                         function fixColumnWidth(table,$headers) {
 407                                 var c = table.config;
 408                                 if(c.widthFixed) {
 409                                         var colgroup = $('<colgroup>');
 410                                         $("tr:first td",table.tBodies[0]).each(function() {
 411                                                 colgroup.append($('<col>').css('width',$(this).width()));
 412                                         });
 413                                         $(table).prepend(colgroup);
 414                                 };
 415                         }
 416
 417                         function updateHeaderSortCount(table,sortList) {
 418                                 var c = table.config, l = sortList.length;
 419                                 for(var i=0; i < l; i++) {
 420                                         var s = sortList[i], o = c.headerList[s[0]];
 421                                         o.count = s[1];
 422                                         o.count++;
 423                                 }
 424                         }
 425
 426                         /* sorting methods */
 427                         function multisort(table,sortList,cache) {
 428
 429                                 if(table.config.debug) { var sortTime = new Date(); }
 430
 431                                 var dynamicExp = "var sortWrapper = function(a,b) {", l = sortList.length;
 432
 433                                 for(var i=0; i < l; i++) {
 434
 435                                         var c = sortList[i][0];
 436                                         var order = sortList[i][1];
 437                                         var s = (getCachedSortType(table.config.parsers,c) == "text") ? ((order == 0) ? "sortText" : "sortTextDesc") : ((order == 0) ? "sortNumeric" : "sortNumericDesc");
 438
 439                                         var e = "e" + i;
 440
 441                                         dynamicExp += "var " + e + " = " + s + "(a[" + c + "],b[" + c + "]); ";
 442                                         dynamicExp += "if(" + e + ") { return " + e + "; } ";
 443                                         dynamicExp += "else { ";
 444                                 }
 445
 446                                 // if value is the same keep orignal order
 447                                 var orgOrderCol = cache.normalized[0].length - 1;
 448                                 dynamicExp += "return a[" + orgOrderCol + "]-b[" + orgOrderCol + "];";
 449
 450                                 for(var i=0; i < l; i++) {
 451                                         dynamicExp += "}; ";
 452                                 }
 453
 454                                 dynamicExp += "return 0; ";
 455                                 dynamicExp += "}; ";
 456
 457                                 eval(dynamicExp);
 458
 459                                 cache.normalized.sort(sortWrapper);
 460
 461                                 if(table.config.debug) { benchmark("Sorting on " + sortList.toString() + " and dir " + order+ " time:", sortTime); }
 462
 463                                 return cache;
 464                         };
 465
 466                         function sortText(a,b) {
 467                                 return ((a < b) ? -1 : ((a > b) ? 1 : 0));
 468                         };
 469
 470                         function sortTextDesc(a,b) {
 471                                 return ((b < a) ? -1 : ((b > a) ? 1 : 0));
 472                         };
 473
 474                         function sortNumeric(a,b) {
 475                                 return a-b;
 476                         };
 477
 478                         function sortNumericDesc(a,b) {
 479                                 return b-a;
 480                         };
 481
 482                         function getCachedSortType(parsers,i) {
 483                                 return parsers[i].type;
 484                         };
 485
 486                         /* public methods */
 487                         this.construct = function(settings) {
 488
 489                                 return this.each(function() {
 490
 491                                         if(!this.tHead || !this.tBodies) return;
 492
 493                                         var $this, $document,$headers, cache, config, shiftDown = 0, sortOrder;
 494
 495                                         this.config = {};
 496
 497                                         config = $.extend(this.config, $.tablesorter.defaults, settings);
 498
 499                                         // store common expression for speed
 500                                         $this = $(this);
 501
 502                                         // build headers
 503                                         $headers = buildHeaders(this);
 504
 505                                         // try to auto detect column type, and store in tables config
 506                                         this.config.parsers = buildParserCache(this,$headers);
 507
 508
 509                                         // build the cache for the tbody cells
 510                                         cache = buildCache(this);
 511
 512                                         // get the css class names, could be done else where.
 513                                         var sortCSS = [config.cssDesc,config.cssAsc];
 514
 515                                         // fixate columns if the users supplies the fixedWidth option
 516                                         fixColumnWidth(this);
 517
 518                                         // apply event handling to headers
 519                                         // this is to big, perhaps break it out?
 520                                         $headers.click(function(e) {
 521
 522                                                 $this.trigger("sortStart");
 523
 524                                                 var totalRows = ($this[0].tBodies[0] && $this[0].tBodies[0].rows.length) || 0;
 525
 526                                                 if(!this.sortDisabled && totalRows > 0) {
 527
 528
 529                                                         // store exp, for speed
 530                                                         var $cell = $(this);
 531
 532                                                         // get current column index
 533                                                         var i = this.column;
 534
 535                                                         // get current column sort order
 536                                                         this.order = this.count++ % 2;
 537
 538                                                         // user only whants to sort on one column
 539                                                         if(!e[config.sortMultiSortKey]) {
 540
 541                                                                 // flush the sort list
 542                                                                 config.sortList = [];
 543
 544                                                                 if(config.sortForce != null) {
 545                                                                         var a = config.sortForce;
 546                                                                         for(var j=0; j < a.length; j++) {
 547                                                                                 if(a[j][0] != i) {
 548                                                                                         config.sortList.push(a[j]);
 549                                                                                 }
 550                                                                         }
 551                                                                 }
 552
 553                                                                 // add column to sort list
 554                                                                 config.sortList.push([i,this.order]);
 555
 556                                                         // multi column sorting
 557                                                         } else {
 558                                                                 // the user has clicked on an all ready sortet column.
 559                                                                 if(isValueInArray(i,config.sortList)) {
 560
 561                                                                         // revers the sorting direction for all tables.
 562                                                                         for(var j=0; j < config.sortList.length; j++) {
 563                                                                                 var s = config.sortList[j], o = config.headerList[s[0]];
 564                                                                                 if(s[0] == i) {
 565                                                                                         o.count = s[1];
 566                                                                                         o.count++;
 567                                                                                         s[1] = o.count % 2;
 568                                                                                 }
 569                                                                         }
 570                                                                 } else {
 571                                                                         // add column to sort list array
 572                                                                         config.sortList.push([i,this.order]);
 573                                                                 }
 574                                                         };
 575                                                         setTimeout(function() {
 576                                                                 //set css for headers
 577                                                                 setHeadersCss($this[0],$headers,config.sortList,sortCSS);
 578                                                                 appendToTable($this[0],multisort($this[0],config.sortList,cache));
 579                                                         },1);
 580                                                         // stop normal event by returning false
 581                                                         return false;
 582                                                 }
 583                                         // cancel selection
 584                                         }).mousedown(function() {
 585                                                 if(config.cancelSelection) {
 586                                                         this.onselectstart = function() {return false};
 587                                                         return false;
 588                                                 }
 589                                         });
 590
 591                                         // apply easy methods that trigger binded events
 592                                         $this.bind("update",function() {
 593
 594                                                 // rebuild parsers.
 595                                                 this.config.parsers = buildParserCache(this,$headers);
 596
 597                                                 // rebuild the cache map
 598                                                 cache = buildCache(this);
 599
 600                                         }).bind("sorton",function(e,list) {
 601
 602                                                 $(this).trigger("sortStart");
 603
 604                                                 config.sortList = list;
 605
 606                                                 // update and store the sortlist
 607                                                 var sortList = config.sortList;
 608
 609                                                 // update header count index
 610                                                 updateHeaderSortCount(this,sortList);
 611
 612                                                 //set css for headers
 613                                                 setHeadersCss(this,$headers,sortList,sortCSS);
 614
 615
 616                                                 // sort the table and append it to the dom
 617                                                 appendToTable(this,multisort(this,sortList,cache));
 618
 619                                         }).bind("appendCache",function() {
 620
 621                                                 appendToTable(this,cache);
 622
 623                                         }).bind("applyWidgetId",function(e,id) {
 624
 625                                                 getWidgetById(id).format(this);
 626
 627                                         }).bind("applyWidgets",function() {
 628                                                 // apply widgets
 629                                                 applyWidget(this);
 630                                         });
 631
 632                                         if($.metadata && ($(this).metadata() && $(this).metadata().sortlist)) {
 633                                                 config.sortList = $(this).metadata().sortlist;
 634                                         }
 635                                         // if user has supplied a sort list to constructor.
 636                                         if(config.sortList.length > 0) {
 637                                                 $this.trigger("sorton",[config.sortList]);
 638                                         }
 639
 640                                         // apply widgets
 641                                         applyWidget(this);
 642                                 });
 643                         };
 644
 645                         this.addParser = function(parser) {
 646                                 var l = parsers.length, a = true;
 647                                 for(var i=0; i < l; i++) {
 648                                         if(parsers[i].id.toLowerCase() == parser.id.toLowerCase()) {
 649                                                 a = false;
 650                                         }
 651                                 }
 652                                 if(a) { parsers.push(parser); };
 653                         };
 654
 655                         this.addWidget = function(widget) {
 656                                 widgets.push(widget);
 657                         };
 658
 659                         this.formatFloat = function(s) {
 660                                 var i = parseFloat(s);
 661                                 return (isNaN(i)) ? 0 : i;
 662                         };
 663                         this.formatInt = function(s) {
 664                                 var i = parseInt(s);
 665                                 return (isNaN(i)) ? 0 : i;
 666                         };
 667
 668                         this.isDigit = function(s,config) {
 669                                 var DECIMAL = '\\' + config.decimal;
 670                                 var exp = '/(^[+]?0(' + DECIMAL +'0+)?$)|(^([-+]?[1-9][0-9]*)$)|(^([-+]?((0?|[1-9][0-9]*)' + DECIMAL +'(0*[1-9][0-9]*)))$)|(^[-+]?[1-9]+[0-9]*' + DECIMAL +'0+$)/';
 671                                 return RegExp(exp).test($.trim(s));
 672                         };
 673
 674                         this.clearTableBody = function(table) {
 675                                 if($.browser.msie) {
 676                                         function empty() {
 677                                                 while ( this.firstChild ) this.removeChild( this.firstChild );
 678                                         }
 679                                         empty.apply(table.tBodies[0]);
 680                                 } else {
 681                                         table.tBodies[0].innerHTML = "";
 682                                 }
 683                         };
 684                 }
 685         });
 686
 687         // extend plugin scope
 688         $.fn.extend({
 689         tablesorter: $.tablesorter.construct
 690         });
 691
 692         var ts = $.tablesorter;
 693
 694         // add default parsers
 695         ts.addParser({
 696                 id: "text",
 697                 is: function(s) {
 698                         return true;
 699                 },
 700                 format: function(s) {
 701                         return $.trim(s.toLowerCase());
 702                 },
 703                 type: "text"
 704         });
 705
 706         ts.addParser({
 707                 id: "digit",
 708                 is: function(s,table) {
 709                         var c = table.config;
 710                         return $.tablesorter.isDigit(s,c);
 711                 },
 712                 format: function(s) {
 713                         return $.tablesorter.formatFloat(s);
 714                 },
 715                 type: "numeric"
 716         });
 717
 718         ts.addParser({
 719                 id: "currency",
 720                 is: function(s) {
 721                         return /^[£$€?.]/.test(s);
 722                 },
 723                 format: function(s) {
 724                         return $.tablesorter.formatFloat(s.replace(new RegExp(/[^0-9.]/g),""));
 725                 },
 726                 type: "numeric"
 727         });
 728
 729         ts.addParser({
 730                 id: "ipAddress",
 731                 is: function(s) {
 732                         return /^\d{2,3}[\.]\d{2,3}[\.]\d{2,3}[\.]\d{2,3}$/.test(s);
 733                 },
 734                 format: function(s) {
 735                         var a = s.split("."), r = "", l = a.length;
 736                         for(var i = 0; i < l; i++) {
 737                                 var item = a[i];
 738                                 if(item.length == 2) {
 739                                         r += "0" + item;
 740                                 } else {
 741                                         r += item;
 742                                 }
 743                         }
 744                         return $.tablesorter.formatFloat(r);
 745                 },
 746                 type: "numeric"
 747         });
 748
 749         ts.addParser({
 750                 id: "url",
 751                 is: function(s) {
 752                         return /^(https?|ftp|file):\/\/$/.test(s);
 753                 },
 754                 format: function(s) {
 755                         return jQuery.trim(s.replace(new RegExp(/(https?|ftp|file):\/\//),''));
 756                 },
 757                 type: "text"
 758         });
 759
 760         ts.addParser({
 761                 id: "isoDate",
 762                 is: function(s) {
 763                         return /^\d{4}[\/-]\d{1,2}[\/-]\d{1,2}$/.test(s);
 764                 },
 765                 format: function(s) {
 766                         return $.tablesorter.formatFloat((s != "") ? new Date(s.replace(new RegExp(/-/g),"/")).getTime() : "0");
 767                 },
 768                 type: "numeric"
 769         });
 770
 771         ts.addParser({
 772                 id: "percent",
 773                 is: function(s) {
 774                         return /\%$/.test($.trim(s));
 775                 },
 776                 format: function(s) {
 777                         return $.tablesorter.formatFloat(s.replace(new RegExp(/%/g),""));
 778                 },
 779                 type: "numeric"
 780         });
 781
 782         ts.addParser({
 783                 id: "usLongDate",
 784                 is: function(s) {
 785                         return s.match(new RegExp(/^[A-Za-z]{3,10}\.? [0-9]{1,2}, ([0-9]{4}|'?[0-9]{2}) (([0-2]?[0-9]:[0-5][0-9])|([0-1]?[0-9]:[0-5][0-9]\s(AM|PM)))$/));
 786                 },
 787                 format: function(s) {
 788                         return $.tablesorter.formatFloat(new Date(s).getTime());
 789                 },
 790                 type: "numeric"
 791         });
 792
 793         ts.addParser({
 794                 id: "shortDate",
 795                 is: function(s) {
 796                         return /\d{1,2}[\/\-]\d{1,2}[\/\-]\d{2,4}/.test(s);
 797                 },
 798                 format: function(s,table) {
 799                         var c = table.config;
 800                         s = s.replace(/\-/g,"/");
 801                         if(c.dateFormat == "us") {
 802                                 // reformat the string in ISO format
 803                                 s = s.replace(/(\d{1,2})[\/\-](\d{1,2})[\/\-](\d{4})/, "$3/$1/$2");
 804                         } else if(c.dateFormat == "uk") {
 805                                 //reformat the string in ISO format
 806                                 s = s.replace(/(\d{1,2})[\/\-](\d{1,2})[\/\-](\d{4})/, "$3/$2/$1");
 807                         } else if(c.dateFormat == "dd/mm/yy" || c.dateFormat == "dd-mm-yy") {
 808                                 s = s.replace(/(\d{1,2})[\/\-](\d{1,2})[\/\-](\d{2})/, "$1/$2/$3");
 809                         }
 810                         return $.tablesorter.formatFloat(new Date(s).getTime());
 811                 },
 812                 type: "numeric"
 813         });
 814
 815         ts.addParser({
 816             id: "time",
 817             is: function(s) {
 818                 return /^(([0-2]?[0-9]:[0-5][0-9])|([0-1]?[0-9]:[0-5][0-9]\s(am|pm)))$/.test(s);
 819             },
 820             format: function(s) {
 821                 return $.tablesorter.formatFloat(new Date("2000/01/01 " + s).getTime());
 822             },
 823           type: "numeric"
 824         });
 825
 826
 827         ts.addParser({
 828             id: "metadata",
 829             is: function(s) {
 830                 return false;
 831             },
 832             format: function(s,table,cell) {
 833                         var c = table.config, p = (!c.parserMetadataName) ? 'sortValue' : c.parserMetadataName;
 834                 return $(cell).metadata()[p];
 835             },
 836           type: "numeric"
 837         });
 838
 839         // add default widgets
 840         ts.addWidget({
 841                 id: "zebra",
 842                 format: function(table) {
 843                         if(table.config.debug) { var time = new Date(); }
 844                         $("tr:visible",table.tBodies[0])
 845                 .filter(':even')
 846                 .removeClass(table.config.widgetZebra.css[1]).addClass(table.config.widgetZebra.css[0])
 847                 .end().filter(':odd')
 848                 .removeClass(table.config.widgetZebra.css[0]).addClass(table.config.widgetZebra.css[1]);
 849                         if(table.config.debug) { $.tablesorter.benchmark("Applying Zebra widget", time); }
 850                 }
 851         });
 852 })(jQuery);