resources/mediawiki/mediawiki.util.js

   1 /**
   2  * Utilities
   3  */
   4 ( function( $, mw ) {
   5
   6         mw.util = {
   7
   8                 /* Initialisation */
   9                 /**
  10                  * @var boolean Wether or not already initialised
  11                  */
  12                 'initialised' : false,
  13                 'init' : function() {
  14                         if ( this.initialised === false ) {
  15                                 this.initialised = true;
  16
  17                                 // Any initialisation after the DOM is ready
  18                                 $( function() {
  19
  20                                         /* Set up $.messageBox */
  21                                         $.messageBoxNew( {
  22                                                 'id': 'mw-js-message',
  23                                                 'parent': '#content'
  24                                         } );
  25
  26                                         // Shortcut to client profile return
  27                                         var profile = $.client.profile();
  28
  29                                         /* Set tooltipAccessKeyPrefix */
  30
  31                                         // Opera on any platform
  32                                         if ( profile.name == 'opera' ) {
  33                                                 mw.util.tooltipAccessKeyPrefix = 'shift-esc-';
  34
  35                                         // Chrome on any platform
  36                                         } else if ( profile.name == 'chrome' ) {
  37                                                 // Chrome on Mac or Chrome on other platform ?
  38                                                 mw.util.tooltipAccessKeyPrefix = ( profile.platform == 'mac'
  39                                                         ? 'ctrl-option-' : 'alt-' );
  40
  41                                         // Non-Windows Safari with webkit_version > 526
  42                                         } else if ( profile.platform !== 'win'
  43                                                 && profile.name == 'safari'
  44                                                 && profile.layoutVersion > 526 ) {
  45                                                 mw.util.tooltipAccessKeyPrefix = 'ctrl-alt-';
  46
  47                                         // Safari/Konqueror on any platform, or any browser on Mac
  48                                         // (but not Safari on Windows)
  49                                         } else if ( !( profile.platform == 'win' && profile.name == 'safari' )
  50                                                                         && ( profile.name == 'safari'
  51                                                                         || profile.platform == 'mac'
  52                                                                         || profile.name == 'konqueror' ) ) {
  53                                                 mw.util.tooltipAccessKeyPrefix = 'ctrl-';
  54
  55                                         // Firefox 2.x
  56                                         } else if ( profile.name == 'firefox' && profile.versionBase == '2' ) {
  57                                                 mw.util.tooltipAccessKeyPrefix = 'alt-shift-';
  58                                         }
  59
  60                                         /* Fill $content var */
  61                                         if ( $( '#bodyContent' ).length ) {
  62                                                 // Vector, Monobook, Chick etc.
  63                                                 mw.util.$content = $( '#bodyContent' );
  64
  65                                         } else if ( $( '#mw_contentholder' ).length ) {
  66                                                 // Modern
  67                                                 mw.util.$content = $( '#mw_contentholder' );
  68
  69                                         } else if ( $( '#article' ).length ) {
  70                                                 // Standard, CologneBlue
  71                                                 mw.util.$content = $( '#article' );
  72
  73                                         } else {
  74                                                 // #content is present on almost all if not all skins. Most skins (the above cases)
  75                                                 // have #content too, but as an outer wrapper instead of the article text container.
  76                                                 // The skins that don't have an outer wrapper do have #content for everything
  77                                                 // so it's a good fallback
  78                                                 mw.util.$content = $( '#content' );
  79                                         }
  80
  81                                         /* Table of Contents toggle */
  82                                         var     $tocContainer = $( '#toc' ),
  83                                                 $tocTitle = $( '#toctitle' ),
  84                                                 $tocToggleLink = $( '#togglelink' );
  85                                         // Only add it if there is a TOC and there is no toggle added already
  86                                         if ( $tocContainer.size() && $tocTitle.size() && !$tocToggleLink.size() ) {
  87                                                 var     hideTocCookie = $.cookie( 'mw_hidetoc' );
  88                                                         $tocToggleLink = $( '<a href="#" class="internal" id="togglelink">' )
  89                                                                 .text( mw.msg( 'hidetoc' ) )
  90                                                                 .click( function(e){
  91                                                                         e.preventDefault();
  92                                                                         mw.util.toggleToc( $(this) );
  93                                                         } );
  94                                                 $tocTitle.append( $tocToggleLink.wrap( '<span class="toctoggle">' ).parent().prepend( '&nbsp;[' ).append( ']&nbsp;' ) );
  95
  96                                                 if ( hideTocCookie == '1' ) {
  97                                                         // Cookie says user want toc hidden
  98                                                         $tocToggleLink.click();
  99                                                 }
 100                                         }
 101                                 } );
 102
 103                                 return true;
 104                         }
 105                         return false;
 106                 },
 107
 108                 /* Main body */
 109
 110                 /**
 111                  * Encode the string like PHP's rawurlencode
 112                  *
 113                  * @param str string String to be encoded
 114                  */
 115                 'rawurlencode' : function( str ) {
 116                         str = ( str + '' ).toString();
 117                         return encodeURIComponent( str )
 118                                 .replace( /!/g, '%21' ).replace( /'/g, '%27' ).replace( /\(/g, '%28' )
 119                                 .replace( /\)/g, '%29' ).replace( /\*/g, '%2A' ).replace( /~/g, '%7E' );
 120                 },
 121
 122                 /**
 123                  * Encode page titles for use in a URL
 124                  * We want / and : to be included as literal characters in our title URLs
 125                  * as they otherwise fatally break the title
 126                  *
 127                  * @param str string String to be encoded
 128                  */
 129                 'wikiUrlencode' : function( str ) {
 130                         return this.rawurlencode( str )
 131                                 .replace( /%20/g, '_' ).replace( /%3A/g, ':' ).replace( /%2F/g, '/' );
 132                 },
 133
 134                 /**
 135                  * Get the link to a page name (relative to wgServer)
 136                  *
 137                  * @param str string Page name to get the link for.
 138                  * @return string Location for a page with name of 'str' or boolean false on error.
 139                  */
 140                 'wikiGetlink' : function( str ) {
 141
 142                         return mw.config.get( 'wgArticlePath' ).replace( '$1', this.wikiUrlencode( str ) );
 143                 },
 144
 145                 /**
 146                  * Get address to a script in the wiki root.
 147                  * For index.php use mw.config.get( 'wgScript' )
 148                  *
 149                  * @param str string Name of script (eg. 'api'), defaults to 'index'
 150                  * @return string Address to script (eg. '/w/api.php' )
 151                  */
 152                 'wikiScript' : function( str ) {
 153                         return mw.config.get( 'wgScriptPath' ) + '/' + ( str || 'index' ) + mw.config.get( 'wgScriptExtension' );
 154                 },
 155
 156                 /**
 157                  * Append a new style block to the head
 158                  *
 159                  * @param text string CSS to be appended
 160                  * @return CSSStyleSheet
 161                  */
 162                 'addCSS' : function( text ) {
 163                         var s = document.createElement( 'style' );
 164                         s.type = 'text/css';
 165                         s.rel = 'stylesheet';
 166                         if ( s.styleSheet ) {
 167                                 s.styleSheet.cssText = text; // IE
 168                         } else {
 169                                 s.appendChild( document.createTextNode( text + '' ) ); // Safari sometimes borks on null
 170                         }
 171                         document.getElementsByTagName('head')[0].appendChild( s );
 172                         return s.sheet || s;
 173                 },
 174
 175                 /**
 176                  * Hide/show the table of contents element
 177                  *
 178                  * @param $toggleLink jQuery A jQuery object of the toggle link.
 179                  * @param callback function Function to be called after the toggle is
 180                  * completed (including the animation) (optional)
 181                  * @return mixed Boolean visibility of the toc (true if it's visible)
 182                  * or Null if there was no table of contents.
 183                  */
 184                 'toggleToc' : function( $toggleLink, callback ) {
 185                         var $tocList = $( '#toc ul:first' );
 186
 187                         // This function shouldn't be called if there's no TOC,
 188                         // but just in case...
 189                         if ( $tocList.size() ) {
 190                                 if ( $tocList.is( ':hidden' ) ) {
 191                                         $tocList.slideDown( 'fast', callback );
 192                                         $toggleLink.text( mw.msg( 'hidetoc' ) );
 193                                         $( '#toc' ).removeClass( 'tochidden' );
 194                                         $.cookie( 'mw_hidetoc', null, {
 195                                                 expires: 30,
 196                                                 path: '/'
 197                                         } );
 198                                         return true;
 199                                 } else {
 200                                         $tocList.slideUp( 'fast', callback );
 201                                         $toggleLink.text( mw.msg( 'showtoc' ) );
 202                                         $( '#toc' ).addClass( 'tochidden' );
 203                                         $.cookie( 'mw_hidetoc', '1', {
 204                                                 expires: 30,
 205                                                 path: '/'
 206                                         } );
 207                                         return false;
 208                                 }
 209                         } else {
 210                                 return null;
 211                         }
 212                 },
 213
 214                 /**
 215                  * Grab the URL parameter value for the given parameter.
 216                  * Returns null if not found.
 217                  *
 218                  * @param param string The parameter name.
 219                  * @param url string URL to search through (optional)
 220                  * @return mixed Parameter value or null.
 221                  */
 222                 'getParamValue' : function( param, url ) {
 223                         url = url ? url : document.location.href;
 224                         // Get last match, stop at hash
 225                         var re = new RegExp( '[^#]*[&?]' + $.escapeRE( param ) + '=([^&#]*)' );
 226                         var m = re.exec( url );
 227                         if ( m && m.length > 1 ) {
 228                                 return decodeURIComponent( m[1] );
 229                         }
 230                         return null;
 231                 },
 232
 233                 /**
 234                  * @var string
 235                  * Access key prefix. Will be re-defined based on browser/operating system
 236                  * detection in mw.util.init().
 237                  */
 238                 'tooltipAccessKeyPrefix' : 'alt-',
 239
 240                 /**
 241                  * @var RegExp
 242                  * Regex to match accesskey tooltips.
 243                  */
 244                 'tooltipAccessKeyRegexp': /\[(ctrl-)?(alt-)?(shift-)?(esc-)?(.)\]$/,
 245
 246                 /**
 247                  * Add the appropriate prefix to the accesskey shown in the tooltip.
 248                  * If the nodeList parameter is given, only those nodes are updated;
 249                  * otherwise, all the nodes that will probably have accesskeys by
 250                  * default are updated.
 251                  *
 252                  * @param nodeList mixed A jQuery object, or array of elements to update.
 253                  */
 254                 'updateTooltipAccessKeys' : function( nodeList ) {
 255                         var $nodes;
 256                         if ( nodeList instanceof jQuery ) {
 257                                 $nodes = nodeList;
 258                         } else if ( nodeList ) {
 259                                 $nodes = $( nodeList );
 260                         } else {
 261                                 // Rather than scanning all links, just the elements that
 262                                 // contain the relevant links
 263                                 this.updateTooltipAccessKeys(
 264                                         $( '#column-one a, #mw-head a, #mw-panel a, #p-logo a' ) );
 265
 266                                 // these are rare enough that no such optimization is needed
 267                                 this.updateTooltipAccessKeys( $( 'input' ) );
 268                                 this.updateTooltipAccessKeys( $( 'label' ) );
 269                                 return;
 270                         }
 271
 272                         $nodes.each( function ( i ) {
 273                                 var tip = $(this).attr( 'title' );
 274                                 if ( !!tip && mw.util.tooltipAccessKeyRegexp.exec( tip ) ) {
 275                                         tip = tip.replace( mw.util.tooltipAccessKeyRegexp,
 276                                                 '[' + mw.util.tooltipAccessKeyPrefix + "$5]" );
 277                                         $(this).attr( 'title', tip );
 278                                 }
 279                         } );
 280                 },
 281
 282                 /*
 283                  * @var jQuery
 284                  * A jQuery object that refers to the page-content element
 285                  * Populated by init().
 286                  */
 287                 '$content' : null,
 288
 289                 /**
 290                  * Add a link to a portlet menu on the page, such as:
 291                  *
 292                  * p-cactions (Content actions), p-personal (Personal tools),
 293                  * p-navigation (Navigation), p-tb (Toolbox)
 294                  *
 295                  * The first three paramters are required, the others are optional and
 296                  * may be null. Though providing an id and tooltip is recommended.
 297                  *
 298                  * By default the new link will be added to the end of the list. To
 299                  * add the link before a given existing item, pass the DOM node
 300                  * (document.getElementById( 'foobar' )) or the jQuery-selector
 301                  * ( '#foobar' ) of that item.
 302                  *
 303                  * @example mw.util.addPortletLink(
 304                  *       'p-tb', 'http://mediawiki.org/',
 305                  *       'MediaWiki.org', 't-mworg', 'Go to MediaWiki.org ', 'm', '#t-print'
 306                  * )
 307                  *
 308                  * @param portlet string ID of the target portlet ( 'p-cactions' or 'p-personal' etc.)
 309                  * @param href string Link URL
 310                  * @param text string Link text
 311                  * @param id string ID of the new item, should be unique and preferably have
 312                  * the appropriate prefix ( 'ca-', 'pt-', 'n-' or 't-' )
 313                  * @param tooltip string Text to show when hovering over the link, without accesskey suffix
 314                  * @param accesskey string Access key to activate this link (one character, try
 315                  * to avoid conflicts. Use $( '[accesskey=x]' ).get() in the console to
 316                  * see if 'x' is already used.
 317                  * @param nextnode mixed DOM Node or jQuery-selector string of the item that the new
 318                  * item should be added before, should be another item in the same
 319                  * list, it will be ignored otherwise
 320                  *
 321                  * @return mixed The DOM Node of the added item (a ListItem or Anchor element,
 322                  * depending on the skin) or null if no element was added to the document.
 323                  */
 324                 'addPortletLink' : function( portlet, href, text, id, tooltip, accesskey, nextnode ) {
 325
 326                         // Check if there's atleast 3 arguments to prevent a TypeError
 327                         if ( arguments.length < 3 ) {
 328                                 return null;
 329                         }
 330                         // Setup the anchor tag
 331                         var $link = $( '<a></a>' ).attr( 'href', href ).text( text );
 332                         if ( tooltip ) {
 333                                 $link.attr( 'title', tooltip );
 334                         }
 335
 336                         // Some skins don't have any portlets
 337                         // just add it to the bottom of their 'sidebar' element as a fallback
 338                         switch ( mw.config.get( 'skin' ) ) {
 339                         case 'standard' :
 340                         case 'cologneblue' :
 341                                 $( '#quickbar' ).append( $link.after( '<br />' ) );
 342                                 return $link[0];
 343                         case 'nostalgia' :
 344                                 $( '#searchform' ).before( $link).before( ' &#124; ' );
 345                                 return $link[0];
 346                         default : // Skins like chick, modern, monobook, myskin, simple, vector...
 347
 348                                 // Select the specified portlet
 349                                 var $portlet = $( '#' + portlet );
 350                                 if ( $portlet.length === 0 ) {
 351                                         return null;
 352                                 }
 353                                 // Select the first (most likely only) unordered list inside the portlet
 354                                 var $ul = $portlet.find( 'ul' );
 355
 356                                 // If it didn't have an unordered list yet, create it
 357                                 if ( $ul.length === 0 ) {
 358                                         // If there's no <div> inside, append it to the portlet directly
 359                                         if ( $portlet.find( 'div:first' ).length === 0 ) {
 360                                                 $portlet.append( '<ul></ul>' );
 361                                         } else {
 362                                                 // otherwise if there's a div (such as div.body or div.pBody)
 363                                                 // append the <ul> to last (most likely only) div
 364                                                 $portlet.find( 'div' ).eq( -1 ).append( '<ul></ul>' );
 365                                         }
 366                                         // Select the created element
 367                                         $ul = $portlet.find( 'ul' ).eq( 0 );
 368                                 }
 369                                 // Just in case..
 370                                 if ( $ul.length === 0 ) {
 371                                         return null;
 372                                 }
 373
 374                                 // Unhide portlet if it was hidden before
 375                                 $portlet.removeClass( 'emptyPortlet' );
 376
 377                                 // Wrap the anchor tag in a list item (and a span if $portlet is a Vector tab)
 378                                 // and back up the selector to the list item
 379                                 var $item;
 380                                 if ( $portlet.hasClass( 'vectorTabs' ) ) {
 381                                         $item = $link.wrap( '<li><span></span></li>' ).parent().parent();
 382                                 } else {
 383                                         $item = $link.wrap( '<li></li>' ).parent();
 384                                 }
 385
 386                                 // Implement the properties passed to the function
 387                                 if ( id ) {
 388                                         $item.attr( 'id', id );
 389                                 }
 390                                 if ( accesskey ) {
 391                                         $link.attr( 'accesskey', accesskey );
 392                                         tooltip += ' [' + accesskey + ']';
 393                                         $link.attr( 'title', tooltip );
 394                                 }
 395                                 if ( accesskey && tooltip ) {
 396                                         this.updateTooltipAccessKeys( $link );
 397                                 }
 398
 399                                 // Where to put our node ?
 400                                 // - nextnode is a DOM element (before MW 1.17, in wikibits.js, this was the only option)
 401                                 if ( nextnode && nextnode.parentNode == $ul[0]  ) {
 402                                         $(nextnode).before( $item );
 403
 404                                 // - nextnode is a CSS selector for jQuery
 405                                 } else if ( typeof nextnode == 'string' && $ul.find( nextnode ).length !== 0 ) {
 406                                         $ul.find( nextnode ).eq( 0 ).before( $item );
 407
 408
 409                                 // If the jQuery selector isn't found within the <ul>,
 410                                 // or if nextnode was invalid or not passed at all,
 411                                 // then just append it at the end of the <ul> (this is the default behaviour)
 412                                 } else {
 413                                         $ul.append( $item );
 414                                 }
 415
 416
 417                                 return $item[0];
 418                         }
 419                 },
 420
 421                 /**
 422                  * Add a little box at the top of the screen to inform the user of
 423                  * something, replacing any previous message.
 424                  * Calling with no arguments, with an empty string or null will hide the message
 425                  *
 426                  * @param message mixed The DOM-element or HTML-string to be put inside the message box.
 427                  * @param className     string Used in adding a class; should be different for each call
 428                  * to allow CSS/JS to hide different boxes. null = no class used.
 429                  * @return boolean True on success, false on failure.
 430                  */
 431                 'jsMessage' : function( message, className ) {
 432
 433                         if ( !arguments.length || message === '' || message === null ) {
 434
 435                                 $( '#mw-js-message' ).empty().hide();
 436                                 return true; // Emptying and hiding message is intended behaviour, return true
 437
 438                         } else {
 439                                 // We special-case skin structures provided by the software. Skins that
 440                                 // choose to abandon or significantly modify our formatting can just define
 441                                 // an mw-js-message div to start with.
 442                                 var $messageDiv = $( '#mw-js-message' );
 443                                 if ( !$messageDiv.length ) {
 444                                         $messageDiv = $( '<div id="mw-js-message">' );
 445                                         if ( mw.util.$content.parent().length ) {
 446                                                 mw.util.$content.parent().prepend( $messageDiv );
 447                                         } else {
 448                                                 return false;
 449                                         }
 450                                 }
 451
 452                                 if ( className ) {
 453                                         $messageDiv.attr( 'class', 'mw-js-message-' + className );
 454                                 }
 455
 456                                 if ( typeof message === 'object' ) {
 457                                         $messageDiv.empty();
 458                                         $messageDiv.append( message ); // Append new content
 459                                 } else {
 460                                         $messageDiv.html( message );
 461                                 }
 462
 463                                 $messageDiv.slideDown();
 464                                 return true;
 465                         }
 466                 },
 467
 468                 /**
 469                  * Validate a string as representing a valid e-mail address
 470                  * according to HTML5 specification. Please note the specification
 471                  * does not validate a domain with one character.
 472                  *
 473                  * @todo FIXME: should be moved to or replaced by a JavaScript validation module.
 474                  *
 475                  * @param mailtxt string E-mail address to be validated.
 476                  * @return mixed Null if mailtxt was an empty string, otherwise true/false
 477                  * is determined by validation.
 478                  */
 479                 'validateEmail' : function( mailtxt ) {
 480                         if( mailtxt === '' ) {
 481                                 return null;
 482                         }
 483
 484                         /**
 485                          * HTML5 defines a string as valid e-mail address if it matches
 486                          * the ABNF:
 487                          *      1 * ( atext / "." ) "@" ldh-str 1*( "." ldh-str )
 488                          * With:
 489                          * - atext      : defined in RFC 5322 section 3.2.3
 490                          * - ldh-str : defined in RFC 1034 section 3.5
 491                          *
 492                          * (see STD 68 / RFC 5234 http://tools.ietf.org/html/std68):
 493                          */
 494
 495                         /**
 496                          * First, define the RFC 5322 'atext' which is pretty easy :
 497                          * atext = ALPHA / DIGIT / ; Printable US-ASCII
 498                                                  "!" / "#" /     ; characters not including
 499                                                  "$" / "%" /     ; specials. Used for atoms.
 500                                                  "&" / "'" /
 501                                                  "*" / "+" /
 502                                                  "-" / "/" /
 503                                                  "=" / "?" /
 504                                                  "^" / "_" /
 505                                                  "`" / "{" /
 506                                                  "|" / "}" /
 507                                                  "~"
 508                         */
 509                         var     rfc5322_atext = "a-z0-9!#$%&'*+\\-/=?^_`{|}~",
 510
 511                         /**
 512                          * Next define the RFC 1034 'ldh-str'
 513                          *      <domain> ::= <subdomain> | " "
 514                          *      <subdomain> ::= <label> | <subdomain> "." <label>
 515                          *      <label> ::= <letter> [ [ <ldh-str> ] <let-dig> ]
 516                          *      <ldh-str> ::= <let-dig-hyp> | <let-dig-hyp> <ldh-str>
 517                          *      <let-dig-hyp> ::= <let-dig> | "-"
 518                          *      <let-dig> ::= <letter> | <digit>
 519                          */
 520                                 rfc1034_ldh_str = "a-z0-9\\-",
 521
 522                                 HTML5_email_regexp = new RegExp(
 523                                         // start of string
 524                                         '^'
 525                                         +
 526                                         // User part which is liberal :p
 527                                         '[' + rfc5322_atext + '\\.]+'
 528                                         +
 529                                         // 'at'
 530                                         '@'
 531                                         +
 532                                         // Domain first part
 533                                         '[' + rfc1034_ldh_str + ']+'
 534                                         +
 535                                         // Optional second part and following are separated by a dot
 536                                         '(?:\\.[' + rfc1034_ldh_str + ']+)*'
 537                                         +
 538                                         // End of string
 539                                         '$',
 540                                         // RegExp is case insensitive
 541                                         'i'
 542                                 );
 543                         return (null !== mailtxt.match( HTML5_email_regexp ) );
 544                 },
 545
 546                 /**
 547                  * Note: borrows from IP::isIPv4
 548                  *
 549                  * @param address string
 550                  * @param allowBlock boolean
 551                  * @return boolean
 552                  */
 553                 'isIPv4Address' : function( address, allowBlock ) {
 554                         var block = allowBlock ? '(?:\\/(?:3[0-2]|[12]?\\d))?' : '';
 555                         var RE_IP_BYTE = '(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|0?[0-9]?[0-9])';
 556                         var RE_IP_ADD = '(?:' + RE_IP_BYTE + '\\.){3}' + RE_IP_BYTE;
 557                         return typeof address === 'string' && address.search( new RegExp( '^' + RE_IP_ADD + block + '$' ) ) != -1;
 558                 },
 559                 /**
 560                  * Note: borrows from IP::isIPv6
 561                  *
 562                  * @param address string
 563                  * @param allowBlock boolean
 564                  * @return boolean
 565                  */
 566                 'isIPv6Address' : function( address, allowBlock ) {
 567                         if ( typeof address !== 'string' ) {
 568                                 return false;
 569                         }
 570                         var block = allowBlock ? '(?:\\/(?:12[0-8]|1[01][0-9]|[1-9]?\\d))?' : '';
 571                         var RE_IPV6_ADD =
 572                         '(?:' + // starts with "::" (including "::")
 573                         ':(?::|(?::' + '[0-9A-Fa-f]{1,4}' + '){1,7})' +
 574                         '|' + // ends with "::" (except "::")
 575                         '[0-9A-Fa-f]{1,4}' + '(?::' + '[0-9A-Fa-f]{1,4}' + '){0,6}::' +
 576                         '|' + // contains no "::"
 577                         '[0-9A-Fa-f]{1,4}' + '(?::' + '[0-9A-Fa-f]{1,4}' + '){7}' +
 578                         ')';
 579                         if ( address.search( new RegExp( '^' + RE_IPV6_ADD + block + '$' ) ) != -1 ) {
 580                                 return true;
 581                         }
 582                         RE_IPV6_ADD = // contains one "::" in the middle (single '::' check below)
 583                                 '[0-9A-Fa-f]{1,4}' + '(?:::?' + '[0-9A-Fa-f]{1,4}' + '){1,6}';
 584                         return address.search( new RegExp( '^' + RE_IPV6_ADD + block + '$' ) ) != -1
 585                                 && address.search( /::/ ) != -1 && address.search( /::.*::/ ) == -1;
 586                 }
 587
 588         };
 589
 590         mw.util.init();
 591
 592 } )( jQuery, mediaWiki );