resources/jquery/jquery.tablesorter.js

   1 /**
   2  * TableSorter for MediaWiki
   3  *
   4  * Written 2011 Leo Koppelkamm
   5  * Based on tablesorter.com plugin, written (c) 2007 Christian Bach.
   6  *
   7  * Dual licensed under the MIT and GPL licenses:
   8  * http://www.opensource.org/licenses/mit-license.php
   9  * http://www.gnu.org/licenses/gpl.html
  10  *
  11  * Depends on mw.config (wgDigitTransformTable, wgMonthNames, wgMonthNamesShort,
  12  * wgDefaultDateFormat, wgContentLanguage)
  13  * Uses 'tableSorterCollation' in mw.config (if available)
  14  */
  15 /**
  16  *
  17  * @description Create a sortable table with multi-column sorting capabilitys
  18  *
  19  * @example $( 'table' ).tablesorter();
  20  * @desc Create a simple tablesorter interface.
  21  *
  22  * @option String cssHeader ( optional ) A string of the class name to be appended
  23  *         to sortable tr elements in the thead of the table. Default value:
  24  *         "header"
  25  *
  26  * @option String cssAsc ( optional ) A string of the class name to be appended to
  27  *         sortable tr elements in the thead on a ascending sort. Default value:
  28  *         "headerSortUp"
  29  *
  30  * @option String cssDesc ( optional ) A string of the class name to be appended
  31  *         to sortable tr elements in the thead on a descending sort. Default
  32  *         value: "headerSortDown"
  33  *
  34  * @option String sortInitialOrder ( optional ) A string of the inital sorting
  35  *         order can be asc or desc. Default value: "asc"
  36  *
  37  * @option String sortMultisortKey ( optional ) A string of the multi-column sort
  38  *         key. Default value: "shiftKey"
  39  *
  40  * @option Boolean sortLocaleCompare ( optional ) Boolean flag indicating whatever
  41  *         to use String.localeCampare method or not. Set to false.
  42  *
  43  * @option Boolean cancelSelection ( optional ) Boolean flag indicating if
  44  *         tablesorter should cancel selection of the table headers text.
  45  *         Default value: true
  46  *
  47  * @option Boolean debug ( optional ) Boolean flag indicating if tablesorter
  48  *         should display debuging information usefull for development.
  49  *
  50  * @type jQuery
  51  *
  52  * @name tablesorter
  53  *
  54  * @cat Plugins/Tablesorter
  55  *
  56  * @author Christian Bach/christian.bach@polyester.se
  57  */
  58
  59 ( function( $ ) {
  60
  61         /* Local scope */
  62
  63         var     ts,
  64                 parsers = [];
  65
  66         /* Parser utility functions */
  67
  68         function getParserById( name ) {
  69                 var len = parsers.length;
  70                 for ( var i = 0; i < len; i++ ) {
  71                         if ( parsers[i].id.toLowerCase() === name.toLowerCase() ) {
  72                                 return parsers[i];
  73                         }
  74                 }
  75                 return false;
  76         }
  77
  78         function getElementText( node ) {
  79                 var $node = $( node ),
  80                         data = $node.attr( 'data-sort-value' );
  81                 if ( data !== undefined ) {
  82                         return data;
  83                 } else {
  84                         return $node.text();
  85                 }
  86         }
  87
  88         function getTextFromRowAndCellIndex( rows, rowIndex, cellIndex ) {
  89                 if ( rows[rowIndex] && rows[rowIndex].cells[cellIndex] ) {
  90                         return $.trim( getElementText( rows[rowIndex].cells[cellIndex] ) );
  91                 } else {
  92                         return '';
  93                 }
  94         }
  95
  96         function detectParserForColumn( table, rows, cellIndex ) {
  97                 var     l = parsers.length,
  98                         nodeValue,
  99                         // Start with 1 because 0 is the fallback parser
 100                         i = 1,
 101                         rowIndex = 0,
 102                         concurrent = 0,
 103                         needed = ( rows.length > 4 ) ? 5 : rows.length;
 104
 105                 while( i < l ) {
 106                         nodeValue = getTextFromRowAndCellIndex( rows, rowIndex, cellIndex );
 107                         if ( nodeValue !== '') {
 108                                 if ( parsers[i].is( nodeValue, table ) ) {
 109                                         concurrent++;
 110                                         rowIndex++;
 111                                         if ( concurrent >= needed ) {
 112                                                 // Confirmed the parser for multiple cells, let's return it
 113                                                 return parsers[i];
 114                                         }
 115                                 } else {
 116                                         // Check next parser, reset rows
 117                                         i++;
 118                                         rowIndex = 0;
 119                                         concurrent = 0;
 120                                 }
 121                         } else {
 122                                 // Empty cell
 123                                 rowIndex++;
 124                                 if ( rowIndex > rows.length ) {
 125                                         rowIndex = 0;
 126                                         i++;
 127                                 }
 128                         }
 129                 }
 130
 131                 // 0 is always the generic parser (text)
 132                 return parsers[0];
 133         }
 134
 135         function buildParserCache( table, $headers ) {
 136                 var     rows = table.tBodies[0].rows,
 137                         sortType,
 138                         parsers = [];
 139
 140                 if ( rows[0] ) {
 141
 142                         var     cells = rows[0].cells,
 143                                 len = cells.length,
 144                                 i, parser;
 145
 146                         for ( i = 0; i < len; i++ ) {
 147                                 parser = false;
 148                                 sortType = $headers.eq( i ).data( 'sort-type' );
 149                                 if ( sortType !== undefined ) {
 150                                         parser = getParserById( sortType );
 151                                 }
 152
 153                                 if ( parser === false ) {
 154                                         parser = detectParserForColumn( table, rows, i );
 155                                 }
 156
 157                                 parsers.push( parser );
 158                         }
 159                 }
 160                 return parsers;
 161         }
 162
 163         /* Other utility functions */
 164
 165         function buildCache( table ) {
 166                 var     totalRows = ( table.tBodies[0] && table.tBodies[0].rows.length ) || 0,
 167                         totalCells = ( table.tBodies[0].rows[0] && table.tBodies[0].rows[0].cells.length ) || 0,
 168                         parsers = table.config.parsers,
 169                         cache = {
 170                                 row: [],
 171                                 normalized: []
 172                         };
 173
 174                 for ( var i = 0; i < totalRows; ++i ) {
 175
 176                         // Add the table data to main data array
 177                         var     $row = $( table.tBodies[0].rows[i] ),
 178                                 cols = [];
 179
 180                         // if this is a child row, add it to the last row's children and
 181                         // continue to the next row
 182                         if ( $row.hasClass( table.config.cssChildRow ) ) {
 183                                 cache.row[cache.row.length - 1] = cache.row[cache.row.length - 1].add( $row );
 184                                 // go to the next for loop
 185                                 continue;
 186                         }
 187
 188                         cache.row.push( $row );
 189
 190                         for ( var j = 0; j < totalCells; ++j ) {
 191                                 cols.push( parsers[j].format( getElementText( $row[0].cells[j] ), table, $row[0].cells[j] ) );
 192                         }
 193
 194                         cols.push( cache.normalized.length ); // add position for rowCache
 195                         cache.normalized.push( cols );
 196                         cols = null;
 197                 }
 198
 199                 return cache;
 200         }
 201
 202         function appendToTable( table, cache ) {
 203                 var     row = cache.row,
 204                         normalized = cache.normalized,
 205                         totalRows = normalized.length,
 206                         checkCell = ( normalized[0].length - 1 ),
 207                         fragment = document.createDocumentFragment();
 208
 209                 for ( var i = 0; i < totalRows; i++ ) {
 210                         var pos = normalized[i][checkCell];
 211
 212                         var l = row[pos].length;
 213
 214                         for ( var j = 0; j < l; j++ ) {
 215                                 fragment.appendChild( row[pos][j] );
 216                         }
 217
 218                 }
 219                 table.tBodies[0].appendChild( fragment );
 220         }
 221
 222         /**
 223          * Find all header rows in a thead-less table and put them in a <thead> tag.
 224          * This only treats a row as a header row if it contains only <th>s (no <td>s)
 225          * and if it is preceded entirely by header rows. The algorithm stops when
 226          * it encounters the first non-header row.
 227          *
 228          * After this, it will look at all rows at the bottom for footer rows
 229          * And place these in a tfoot using similar rules.
 230          * @param $table jQuery object for a <table>
 231          */
 232         function emulateTHeadAndFoot( $table ) {
 233                 var $rows = $table.find( 'tr' );
 234                 if( !$table.get(0).tHead ) {
 235                         var $thead = $( '<thead>' );
 236                         $rows.each( function() {
 237                                 if ( $(this).children( 'td' ).length > 0 ) {
 238                                         // This row contains a <td>, so it's not a header row
 239                                         // Stop here
 240                                         return false;
 241                                 }
 242                                 $thead.append( this );
 243                         } );
 244                         $table.prepend( $thead );
 245                 }
 246                 if( !$table.get(0).tFoot ) {
 247                         var $tfoot = $( '<tfoot>' );
 248                         var len = $rows.length;
 249                         for ( var i = len-1; i >= 0; i-- ) {
 250                                 if( $( $rows[i] ).children( 'td' ).length > 0 ){
 251                                         break;
 252                                 }
 253                                 $tfoot.prepend( $( $rows[i] ));
 254                         }
 255                         $table.append( $tfoot );
 256                 }
 257         }
 258
 259         function buildHeaders( table, msg ) {
 260                 var     maxSeen = 0,
 261                         longest,
 262                         realCellIndex = 0,
 263                         $tableHeaders = $( 'thead:eq(0) tr', table );
 264                 if ( $tableHeaders.length > 1 ) {
 265                         $tableHeaders.each( function() {
 266                                 if ( this.cells.length > maxSeen ) {
 267                                         maxSeen = this.cells.length;
 268                                         longest = this;
 269                                 }
 270                         });
 271                         $tableHeaders = $( longest );
 272                 }
 273                 $tableHeaders = $tableHeaders.find( 'th' ).each( function( index ) {
 274                         this.column = realCellIndex;
 275
 276                         var colspan = this.colspan;
 277                         colspan = colspan ? parseInt( colspan, 10 ) : 1;
 278                         realCellIndex += colspan;
 279
 280                         this.order = 0;
 281                         this.count = 0;
 282
 283                         if ( $( this ).is( '.unsortable' ) ) {
 284                                 this.sortDisabled = true;
 285                         }
 286
 287                         if ( !this.sortDisabled ) {
 288                                 var $th = $( this ).addClass( table.config.cssHeader ).attr( 'title', msg[1] );
 289                         }
 290
 291                         // add cell to headerList
 292                         table.config.headerList[index] = this;
 293                 } );
 294
 295                 return $tableHeaders;
 296
 297         }
 298
 299         function isValueInArray( v, a ) {
 300                 var l = a.length;
 301                 for ( var i = 0; i < l; i++ ) {
 302                         if ( a[i][0] == v ) {
 303                                 return true;
 304                         }
 305                 }
 306                 return false;
 307         }
 308
 309         function setHeadersCss( table, $headers, list, css, msg ) {
 310                 // Remove all header information
 311                 $headers.removeClass( css[0] ).removeClass( css[1] );
 312
 313                 var h = [];
 314                 $headers.each( function( offset ) {
 315                         if ( !this.sortDisabled ) {
 316                                 h[this.column] = $( this );
 317                         }
 318                 } );
 319
 320                 var l = list.length;
 321                 for ( var i = 0; i < l; i++ ) {
 322                         h[ list[i][0] ].addClass( css[ list[i][1] ] ).attr( 'title', msg[ list[i][1] ] );
 323                 }
 324         }
 325
 326         function sortText( a, b ) {
 327                 return ( (a < b) ? false : ((a > b) ? true : 0) );
 328         }
 329
 330         function sortTextDesc( a, b ) {
 331                 return ( (b < a) ? false : ((b > a) ? true : 0) );
 332         }
 333
 334         function checkSorting( array1, array2, sortList ) {
 335                 var col, fn, ret;
 336                 for ( var i = 0, len = sortList.length; i < len; i++ ) {
 337                         col = sortList[i][0];
 338                         fn = ( sortList[i][1] ) ? sortTextDesc : sortText;
 339                         ret = fn.call( this, array1[col], array2[col] );
 340                         if ( ret !== 0 ) {
 341                                 return ret;
 342                         }
 343                 }
 344                 return ret;
 345         }
 346
 347         // Merge sort algorithm
 348         // Based on http://en.literateprograms.org/Merge_sort_(JavaScript)
 349         function mergeSortHelper( array, begin, beginRight, end, sortList ) {
 350                 for ( ; begin < beginRight; ++begin ) {
 351                         if ( checkSorting( array[begin], array[beginRight], sortList ) ) {
 352                                 var v = array[begin];
 353                                 array[begin] = array[beginRight];
 354                                 var begin2 = beginRight;
 355                                 while ( begin2 + 1 < end && checkSorting( v, array[begin2 + 1], sortList ) ) {
 356                                         var tmp = array[begin2];
 357                                         array[begin2] = array[begin2 + 1];
 358                                         array[begin2 + 1] = tmp;
 359                                         ++begin2;
 360                                 }
 361                                 array[begin2] = v;
 362                         }
 363                 }
 364         }
 365
 366         function mergeSort(array, begin, end, sortList) {
 367                 var size = end - begin;
 368                 if ( size < 2 ) {
 369                         return;
 370                 }
 371
 372                 var beginRight = begin + Math.floor(size / 2);
 373
 374                 mergeSort( array, begin, beginRight, sortList );
 375                 mergeSort( array, beginRight, end, sortList );
 376                 mergeSortHelper( array, begin, beginRight, end, sortList );
 377         }
 378
 379         function multisort( table, sortList, cache ) {
 380                 var i = sortList.length;
 381                 mergeSort( cache.normalized, 0, cache.normalized.length, sortList );
 382
 383                 return cache;
 384         }
 385
 386         function buildTransformTable() {
 387                 var digits = '0123456789,.'.split( '' );
 388                 var separatorTransformTable = mw.config.get( 'wgSeparatorTransformTable' );
 389                 var digitTransformTable = mw.config.get( 'wgDigitTransformTable' );
 390                 if ( separatorTransformTable === null || ( separatorTransformTable[0] === '' && digitTransformTable[2] === '' ) ) {
 391                         ts.transformTable = false;
 392                 } else {
 393                         ts.transformTable = {};
 394
 395                         // Unpack the transform table
 396                         var ascii = separatorTransformTable[0].split( "\t" ).concat( digitTransformTable[0].split( "\t" ) );
 397                         var localised = separatorTransformTable[1].split( "\t" ).concat( digitTransformTable[1].split( "\t" ) );
 398
 399                         // Construct regex for number identification
 400                         for ( var i = 0; i < ascii.length; i++ ) {
 401                                 ts.transformTable[localised[i]] = ascii[i];
 402                                 digits.push( $.escapeRE( localised[i] ) );
 403                         }
 404                 }
 405                 var digitClass = '[' + digits.join( '', digits ) + ']';
 406
 407                 // We allow a trailing percent sign, which we just strip. This works fine
 408                 // if percents and regular numbers aren't being mixed.
 409                 ts.numberRegex = new RegExp("^(" + "[-+\u2212]?[0-9][0-9,]*(\\.[0-9,]*)?(E[-+\u2212]?[0-9][0-9,]*)?" + // Fortran-style scientific
 410                 "|" + "[-+\u2212]?" + digitClass + "+[\\s\\xa0]*%?" + // Generic localised
 411                 ")$", "i");
 412         }
 413
 414         function buildDateTable() {
 415                 var regex = [];
 416                 ts.monthNames = [
 417                         [],
 418                         []
 419                 ];
 420
 421                 for ( var i = 1; i < 13; i++ ) {
 422                         ts.monthNames[0][i] = mw.config.get( 'wgMonthNames' )[i].toLowerCase();
 423                         ts.monthNames[1][i] = mw.config.get( 'wgMonthNamesShort' )[i].toLowerCase().replace( '.', '' );
 424                         regex.push( $.escapeRE( ts.monthNames[0][i] ) );
 425                         regex.push( $.escapeRE( ts.monthNames[1][i] ) );
 426                 }
 427
 428                 // Build piped string
 429                 regex = regex.join( '|' );
 430
 431                 // Build RegEx
 432                 // Any date formated with . , ' - or /
 433                 ts.dateRegex[0] = new RegExp( /^\s*\d{1,2}[\,\.\-\/'\s]{1,2}\d{1,2}[\,\.\-\/'\s]{1,2}\d{2,4}\s*?/i);
 434
 435                 // Written Month name, dmy
 436                 ts.dateRegex[1] = new RegExp( '^\\s*\\d{1,2}[\\,\\.\\-\\/\'\\s]*(' + regex + ')' + '[\\,\\.\\-\\/\'\\s]*\\d{2,4}\\s*$', 'i' );
 437
 438                 // Written Month name, mdy
 439                 ts.dateRegex[2] = new RegExp( '^\\s*(' + regex + ')' + '[\\,\\.\\-\\/\'\\s]*\\d{1,2}[\\,\\.\\-\\/\'\\s]*\\d{2,4}\\s*$', 'i' );
 440
 441         }
 442
 443         function explodeRowspans( $table ) {
 444                 // Split multi row cells into multiple cells with the same content
 445                 $table.find( 'tbody [rowspan]' ).each(function() {
 446                         var rowSpan = this.rowSpan;
 447                         this.rowSpan = 1;
 448                         var cell = $( this );
 449                         var next = cell.parent().nextAll();
 450                         for ( var i = 0; i < rowSpan - 1; i++ ) {
 451                                 var td = next.eq( i ).find( 'td' );
 452                                 if ( !td.length ) {
 453                                         next.eq( i ).append( cell.clone() );
 454                                 } else if ( this.cellIndex === 0 ) {
 455                                         td.eq( this.cellIndex ).before( cell.clone() );
 456                                 } else {
 457                                         td.eq( this.cellIndex - 1 ).after( cell.clone() );
 458                                 }
 459                         }
 460                 });
 461         }
 462
 463         function buildCollationTable() {
 464                 ts.collationTable = mw.config.get( 'tableSorterCollation' );
 465                 ts.collationRegex = null;
 466                 if ( ts.collationTable ) {
 467                         var keys = [];
 468
 469                         // Build array of key names
 470                         for ( var key in ts.collationTable ) {
 471                                 if ( ts.collationTable.hasOwnProperty(key) ) { //to be safe
 472                                         keys.push(key);
 473                                 }
 474                         }
 475                         if (keys.length) {
 476                                 ts.collationRegex = new RegExp( '[' + keys.join( '' ) + ']', 'ig' );
 477                         }
 478                 }
 479         }
 480
 481         function cacheRegexs() {
 482                 if ( ts.rgx ) {
 483                         return;
 484                 }
 485                 ts.rgx = {
 486                         IPAddress: [
 487                                 new RegExp( /^\d{1,3}[\.]\d{1,3}[\.]\d{1,3}[\.]\d{1,3}$/)
 488                         ],
 489                         currency: [
 490                                 new RegExp( /^[£$€?.]/),
 491                                 new RegExp( /[£$€]/g)
 492                         ],
 493                         url: [
 494                                 new RegExp( /^(https?|ftp|file):\/\/$/),
 495                                 new RegExp( /(https?|ftp|file):\/\//)
 496                         ],
 497                         isoDate: [
 498                                 new RegExp( /^\d{4}[\/\-]\d{1,2}[\/\-]\d{1,2}$/)
 499                         ],
 500                         usLongDate: [
 501                                 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)))$/)
 502                         ],
 503                         time: [
 504                                 new RegExp( /^(([0-2]?[0-9]:[0-5][0-9])|([0-1]?[0-9]:[0-5][0-9]\s(am|pm)))$/)
 505                         ]
 506                 };
 507         }
 508
 509         /* Public scope */
 510
 511         $.tablesorter = {
 512
 513                         defaultOptions: {
 514                                 cssHeader: 'headerSort',
 515                                 cssAsc: 'headerSortUp',
 516                                 cssDesc: 'headerSortDown',
 517                                 cssChildRow: 'expand-child',
 518                                 sortInitialOrder: 'asc',
 519                                 sortMultiSortKey: 'shiftKey',
 520                                 sortLocaleCompare: false,
 521                                 parsers: {},
 522                                 widgets: [],
 523                                 headers: {},
 524                                 cancelSelection: true,
 525                                 sortList: [],
 526                                 headerList: [],
 527                                 selectorHeaders: 'thead tr:eq(0) th',
 528                                 debug: false
 529                         },
 530
 531                         dateRegex: [],
 532                         monthNames: [],
 533
 534                         /**
 535                          * @param $tables {jQuery}
 536                          * @param settings {Object} (optional)
 537                          */
 538                         construct: function( $tables, settings ) {
 539                                 return $tables.each( function( i, table ) {
 540                                         // Declare and cache.
 541                                         var     $document, $headers, cache, config, sortOrder,
 542                                                 $table = $( table ),
 543                                                 shiftDown = 0,
 544                                                 firstTime = true;
 545
 546                                         // Quit if no tbody
 547                                         if ( !table.tBodies ) {
 548                                                 return;
 549                                         }
 550                                         if ( !table.tHead ) {
 551                                                 // No thead found. Look for rows with <th>s and
 552                                                 // move them into a <thead> tag or a <tfoot> tag
 553                                                 emulateTHeadAndFoot( $table );
 554
 555                                                 // Still no thead? Then quit
 556                                                 if ( !table.tHead ) {
 557                                                         return;
 558                                                 }
 559                                         }
 560                                         $table.addClass( "jquery-tablesorter" );
 561
 562                                         // New config object.
 563                                         table.config = {};
 564
 565                                         // Merge and extend.
 566                                         config = $.extend( table.config, $.tablesorter.defaultOptions, settings );
 567
 568                                         // Save the settings where they read
 569                                         $.data( table, 'tablesorter', config );
 570
 571                                         // Get the CSS class names, could be done else where.
 572                                         var sortCSS = [ config.cssDesc, config.cssAsc ];
 573                                         var sortMsg = [ mw.msg( 'sort-descending' ), mw.msg( 'sort-ascending' ) ];
 574
 575                                         // Build headers
 576                                         $headers = buildHeaders( table, sortMsg );
 577
 578                                         // Grab and process locale settings
 579                                         buildTransformTable();
 580                                         buildDateTable();
 581                                         buildCollationTable();
 582
 583                                         // Precaching regexps can bring 10 fold
 584                                         // performance improvements in some browsers.
 585                                         cacheRegexs();
 586
 587                                         // Apply event handling to headers
 588                                         // this is too big, perhaps break it out?
 589                                         $headers.click( function( e ) {
 590                                                 if ( e.target.nodeName.toLowerCase() == 'a' ) {
 591                                                         // The user clicked on a link inside a table header
 592                                                         // Do nothing and let the default link click action continue
 593                                                         return true;
 594                                                 }
 595
 596                                                 if ( firstTime ) {
 597                                                         firstTime = false;
 598
 599                                                         // Legacy fix of .sortbottoms
 600                                                         // Wrap them inside inside a tfoot (because that's what they actually want to be) &
 601                                                         // and put the <tfoot> at the end of the <table>
 602                                                         var $sortbottoms = $table.find( 'tr.sortbottom' );
 603                                                         if ( $sortbottoms.length ) {
 604                                                                 var $tfoot = $table.find( 'tfoot' );
 605                                                                 if( $tfoot.length ) {
 606                                                                         $tfoot.eq(0).prepend( $sortbottoms );
 607                                                                 } else {
 608                                                                         $table.append( $( '<tfoot>' ).append( $sortbottoms ) )
 609                                                                 }
 610                                                         }
 611
 612                                                         explodeRowspans( $table );
 613                                                         // try to auto detect column type, and store in tables config
 614                                                         table.config.parsers = buildParserCache( table, $headers );
 615                                                         // build the cache for the tbody cells
 616                                                         cache = buildCache( table );
 617                                                 }
 618                                                 var totalRows = ( $table[0].tBodies[0] && $table[0].tBodies[0].rows.length ) || 0;
 619                                                 if ( !table.sortDisabled && totalRows > 0 ) {
 620
 621                                                         // Cache jQuery object
 622                                                         var $cell = $( this );
 623
 624                                                         // Get current column index
 625                                                         var i = this.column;
 626
 627                                                         // Get current column sort order
 628                                                         this.order = this.count % 2;
 629                                                         this.count++;
 630
 631                                                         // User only wants to sort on one column
 632                                                         if ( !e[config.sortMultiSortKey] ) {
 633                                                                 // Flush the sort list
 634                                                                 config.sortList = [];
 635                                                                 // Add column to sort list
 636                                                                 config.sortList.push( [i, this.order] );
 637
 638                                                         // Multi column sorting
 639                                                         } else {
 640                                                                 // The user has clicked on an already sorted column.
 641                                                                 if ( isValueInArray( i, config.sortList ) ) {
 642                                                                         // Reverse the sorting direction for all tables.
 643                                                                         for ( var j = 0; j < config.sortList.length; j++ ) {
 644                                                                                 var s = config.sortList[j],
 645                                                                                         o = config.headerList[s[0]];
 646                                                                                 if ( s[0] == i ) {
 647                                                                                         o.count = s[1];
 648                                                                                         o.count++;
 649                                                                                         s[1] = o.count % 2;
 650                                                                                 }
 651                                                                         }
 652                                                                 } else {
 653                                                                         // Add column to sort list array
 654                                                                         config.sortList.push( [i, this.order] );
 655                                                                 }
 656                                                         }
 657
 658                                                         // Set CSS for headers
 659                                                         setHeadersCss( $table[0], $headers, config.sortList, sortCSS, sortMsg );
 660                                                         appendToTable(
 661                                                                 $table[0], multisort( $table[0], config.sortList, cache )
 662                                                         );
 663
 664                                                         // Stop normal event by returning false
 665                                                         return false;
 666                                                 }
 667
 668                                         // Cancel selection
 669                                         } ).mousedown( function() {
 670                                                 if ( config.cancelSelection ) {
 671                                                         this.onselectstart = function() {
 672                                                                 return false;
 673                                                         };
 674                                                         return false;
 675                                                 }
 676                                         } );
 677                                 } );
 678                         },
 679
 680                         addParser: function( parser ) {
 681                                 var     l = parsers.length,
 682                                         a = true;
 683                                 for ( var i = 0; i < l; i++ ) {
 684                                         if ( parsers[i].id.toLowerCase() == parser.id.toLowerCase() ) {
 685                                                 a = false;
 686                                         }
 687                                 }
 688                                 if ( a ) {
 689                                         parsers.push( parser );
 690                                 }
 691                         },
 692
 693                         formatDigit: function( s ) {
 694                                 if ( ts.transformTable !== false ) {
 695                                         var     out = '',
 696                                                 c;
 697                                         for ( var p = 0; p < s.length; p++ ) {
 698                                                 c = s.charAt(p);
 699                                                 if ( c in ts.transformTable ) {
 700                                                         out += ts.transformTable[c];
 701                                                 } else {
 702                                                         out += c;
 703                                                 }
 704                                         }
 705                                         s = out;
 706                                 }
 707                                 var i = parseFloat( s.replace( /[, ]/g, '' ).replace( "\u2212", '-' ) );
 708                                 return ( isNaN(i)) ? 0 : i;
 709                         },
 710
 711                         formatFloat: function( s ) {
 712                                 var i = parseFloat(s);
 713                                 return ( isNaN(i)) ? 0 : i;
 714                         },
 715
 716                         formatInt: function( s ) {
 717                                 var i = parseInt( s, 10 );
 718                                 return ( isNaN(i)) ? 0 : i;
 719                         },
 720
 721                         clearTableBody: function( table ) {
 722                                 if ( $.browser.msie ) {
 723                                         var empty = function( el ) {
 724                                                 while ( el.firstChild ) {
 725                                                         el.removeChild( el.firstChild );
 726                                                 }
 727                                         };
 728                                         empty( table.tBodies[0] );
 729                                 } else {
 730                                         table.tBodies[0].innerHTML = '';
 731                                 }
 732                         }
 733                 };
 734
 735         // Shortcut
 736         ts = $.tablesorter;
 737
 738         // Register as jQuery prototype method
 739         $.fn.tablesorter = function( settings ) {
 740                 return ts.construct( this, settings );
 741         };
 742
 743         // Add default parsers
 744         ts.addParser( {
 745                 id: 'text',
 746                 is: function( s ) {
 747                         return true;
 748                 },
 749                 format: function( s ) {
 750                         s = $.trim( s.toLowerCase() );
 751                         if ( ts.collationRegex ) {
 752                                 var tsc = ts.collationTable;
 753                                 s = s.replace( ts.collationRegex, function( match ) {
 754                                         var r = tsc[match] ? tsc[match] : tsc[match.toUpperCase()];
 755                                         return r.toLowerCase();
 756                                 } );
 757                         }
 758                         return s;
 759                 },
 760                 type: 'text'
 761         } );
 762
 763         ts.addParser( {
 764                 id: 'IPAddress',
 765                 is: function( s ) {
 766                         return ts.rgx.IPAddress[0].test(s);
 767                 },
 768                 format: function( s ) {
 769                         var     a = s.split( '.' ),
 770                                 r = '',
 771                                 l = a.length;
 772                         for ( var i = 0; i < l; i++ ) {
 773                                 var item = a[i];
 774                                 if ( item.length == 1 ) {
 775                                         r += '00' + item;
 776                                 } else if ( item.length == 2 ) {
 777                                         r += '0' + item;
 778                                 } else {
 779                                         r += item;
 780                                 }
 781                         }
 782                         return $.tablesorter.formatFloat(r);
 783                 },
 784                 type: 'numeric'
 785         } );
 786
 787         ts.addParser( {
 788                 id: 'currency',
 789                 is: function( s ) {
 790                         return ts.rgx.currency[0].test(s);
 791                 },
 792                 format: function( s ) {
 793                         return $.tablesorter.formatDigit( s.replace( ts.rgx.currency[1], '' ) );
 794                 },
 795                 type: 'numeric'
 796         } );
 797
 798         ts.addParser( {
 799                 id: 'url',
 800                 is: function( s ) {
 801                         return ts.rgx.url[0].test(s);
 802                 },
 803                 format: function( s ) {
 804                         return $.trim( s.replace( ts.rgx.url[1], '' ) );
 805                 },
 806                 type: 'text'
 807         } );
 808
 809         ts.addParser( {
 810                 id: 'isoDate',
 811                 is: function( s ) {
 812                         return ts.rgx.isoDate[0].test(s);
 813                 },
 814                 format: function( s ) {
 815                         return $.tablesorter.formatFloat((s !== '') ? new Date(s.replace(
 816                         new RegExp( /-/g), '/')).getTime() : '0' );
 817                 },
 818                 type: 'numeric'
 819         } );
 820
 821         ts.addParser( {
 822                 id: 'usLongDate',
 823                 is: function( s ) {
 824                         return ts.rgx.usLongDate[0].test(s);
 825                 },
 826                 format: function( s ) {
 827                         return $.tablesorter.formatFloat( new Date(s).getTime() );
 828                 },
 829                 type: 'numeric'
 830         } );
 831
 832         ts.addParser( {
 833                 id: 'date',
 834                 is: function( s ) {
 835                         return ( ts.dateRegex[0].test(s) || ts.dateRegex[1].test(s) || ts.dateRegex[2].test(s ));
 836                 },
 837                 format: function( s, table ) {
 838                         s = $.trim( s.toLowerCase() );
 839
 840                         for ( var i = 1, j = 0; i < 13 && j < 2; i++ ) {
 841                                 s = s.replace( ts.monthNames[j][i], i );
 842                                 if ( i == 12 ) {
 843                                         j++;
 844                                         i = 0;
 845                                 }
 846                         }
 847
 848                         s = s.replace( /[\-\.\,' ]/g, '/' );
 849
 850                         // Replace double slashes
 851                         s = s.replace( /\/\//g, '/' );
 852                         s = s.replace( /\/\//g, '/' );
 853                         s = s.split( '/' );
 854
 855                         // Pad Month and Day
 856                         if ( s[0] && s[0].length == 1 ) {
 857                                 s[0] = '0' + s[0];
 858                         }
 859                         if ( s[1] && s[1].length == 1 ) {
 860                                 s[1] = '0' + s[1];
 861                         }
 862                         var y;
 863
 864                         if ( !s[2] ) {
 865                                 // Fix yearless dates
 866                                 s[2] = 2000;
 867                         } else if ( ( y = parseInt( s[2], 10) ) < 100 ) {
 868                                 // Guestimate years without centuries
 869                                 if ( y < 30 ) {
 870                                         s[2] = 2000 + y;
 871                                 } else {
 872                                         s[2] = 1900 + y;
 873                                 }
 874                         }
 875                         // Resort array depending on preferences
 876                         if ( mw.config.get( 'wgDefaultDateFormat' ) == 'mdy' || mw.config.get( 'wgContentLanguage' ) == 'en' ) {
 877                                 s.push( s.shift() );
 878                                 s.push( s.shift() );
 879                         } else if ( mw.config.get( 'wgDefaultDateFormat' ) == 'dmy' ) {
 880                                 var d = s.shift();
 881                                 s.push( s.shift() );
 882                                 s.push(d);
 883                         }
 884                         return parseInt( s.join( '' ), 10 );
 885                 },
 886                 type: 'numeric'
 887         } );
 888
 889         ts.addParser( {
 890                 id: 'time',
 891                 is: function( s ) {
 892                         return ts.rgx.time[0].test(s);
 893                 },
 894                 format: function( s ) {
 895                         return $.tablesorter.formatFloat( new Date( '2000/01/01 ' + s ).getTime() );
 896                 },
 897                 type: 'numeric'
 898         } );
 899
 900         ts.addParser( {
 901                 id: 'number',
 902                 is: function( s, table ) {
 903                         return $.tablesorter.numberRegex.test( $.trim( s ));
 904                 },
 905                 format: function( s ) {
 906                         return $.tablesorter.formatDigit(s);
 907                 },
 908                 type: 'numeric'
 909         } );
 910
 911 } )( jQuery );