resources/mediawiki/mediawiki.util.js

   1 ( function ( mw, $ ) {
   2         'use strict';
   3
   4         /**
   5          * Utility library
   6          * @class mw.util
   7          * @singleton
   8          */
   9         var util = {
  10
  11                 /**
  12                  * Initialisation
  13                  * (don't call before document ready)
  14                  */
  15                 init: function () {
  16                         var profile;
  17
  18                         /* Set tooltipAccessKeyPrefix */
  19                         profile = $.client.profile();
  20
  21                         // Opera on any platform
  22                         if ( profile.name === 'opera' ) {
  23                                 util.tooltipAccessKeyPrefix = 'shift-esc-';
  24
  25                         // Chrome on any platform
  26                         } else if ( profile.name === 'chrome' ) {
  27
  28                                 util.tooltipAccessKeyPrefix = (
  29                                         profile.platform === 'mac'
  30                                                 // Chrome on Mac
  31                                                 ? 'ctrl-option-'
  32                                                 // Chrome on Windows or Linux
  33                                                 // (both alt- and alt-shift work, but alt with E, D, F etc does not
  34                                                 // work since they are browser shortcuts)
  35                                                 : 'alt-shift-'
  36                                 );
  37
  38                         // Non-Windows Safari with webkit_version > 526
  39                         } else if ( profile.platform !== 'win'
  40                                 && profile.name === 'safari'
  41                                 && profile.layoutVersion > 526 ) {
  42                                 util.tooltipAccessKeyPrefix = 'ctrl-alt-';
  43                         // Firefox 14+ on Mac
  44                         } else if ( profile.platform === 'mac'
  45                                 && profile.name === 'firefox'
  46                                 && profile.versionNumber >= 14 ) {
  47                                 util.tooltipAccessKeyPrefix = 'ctrl-option-';
  48                         // Safari/Konqueror on any platform, or any browser on Mac
  49                         // (but not Safari on Windows)
  50                         } else if ( !( profile.platform === 'win' && profile.name === 'safari' )
  51                                                         && ( profile.name === 'safari'
  52                                                         || profile.platform === 'mac'
  53                                                         || profile.name === 'konqueror' ) ) {
  54                                 util.tooltipAccessKeyPrefix = 'ctrl-';
  55
  56                         // Firefox/Iceweasel 2.x and later
  57                         } else if ( ( profile.name === 'firefox' || profile.name === 'iceweasel' )
  58                                 && profile.versionBase > '1' ) {
  59                                 util.tooltipAccessKeyPrefix = 'alt-shift-';
  60                         }
  61
  62                         /* Fill $content var */
  63                         util.$content = ( function () {
  64                                 var i, l, $content, selectors;
  65                                 selectors = [
  66                                         // The preferred standard for setting $content (class="mw-body")
  67                                         // You may also use (class="mw-body mw-body-primary") if you use
  68                                         // mw-body in multiple locations.
  69                                         // Or class="mw-body-primary" if you want $content to be deeper
  70                                         // in the dom than mw-body
  71                                         '.mw-body-primary',
  72                                         '.mw-body',
  73
  74                                         /* Legacy fallbacks for setting the content */
  75                                         // Vector, Monobook, Chick, etc... based skins
  76                                         '#bodyContent',
  77
  78                                         // Modern based skins
  79                                         '#mw_contentholder',
  80
  81                                         // Standard, CologneBlue
  82                                         '#article',
  83
  84                                         // #content is present on almost all if not all skins. Most skins (the above cases)
  85                                         // have #content too, but as an outer wrapper instead of the article text container.
  86                                         // The skins that don't have an outer wrapper do have #content for everything
  87                                         // so it's a good fallback
  88                                         '#content',
  89
  90                                         // If nothing better is found fall back to our bodytext div that is guaranteed to be here
  91                                         '#mw-content-text',
  92
  93                                         // Should never happen... well, it could if someone is not finished writing a skin and has
  94                                         // not inserted bodytext yet. But in any case <body> should always exist
  95                                         'body'
  96                                 ];
  97                                 for ( i = 0, l = selectors.length; i < l; i++ ) {
  98                                         $content = $( selectors[i] ).first();
  99                                         if ( $content.length ) {
 100                                                 return $content;
 101                                         }
 102                                 }
 103
 104                                 // Make sure we don't unset util.$content if it was preset and we don't find anything
 105                                 return util.$content;
 106                         } )();
 107
 108                         // Table of contents toggle
 109                         mw.hook( 'wikipage.content' ).add( function ( $content ) {
 110                                 var $tocTitle, $tocToggleLink, hideTocCookie;
 111                                 $tocTitle = $content.find( '#toctitle' );
 112                                 $tocToggleLink = $content.find( '#togglelink' );
 113                                 // Only add it if there is a TOC and there is no toggle added already
 114                                 if ( $content.find( '#toc' ).length && $tocTitle.length && !$tocToggleLink.length ) {
 115                                         hideTocCookie = $.cookie( 'mw_hidetoc' );
 116                                         $tocToggleLink = $( '<a href="#" class="internal" id="togglelink"></a>' )
 117                                                 .text( mw.msg( 'hidetoc' ) )
 118                                                 .click( function ( e ) {
 119                                                         e.preventDefault();
 120                                                         util.toggleToc( $( this ) );
 121                                                 } );
 122                                         $tocTitle.append(
 123                                                 $tocToggleLink
 124                                                         .wrap( '<span class="toctoggle"></span>' )
 125                                                         .parent()
 126                                                                 .prepend( '&nbsp;[' )
 127                                                                 .append( ']&nbsp;' )
 128                                         );
 129
 130                                         if ( hideTocCookie === '1' ) {
 131                                                 util.toggleToc( $tocToggleLink );
 132                                         }
 133                                 }
 134                         } );
 135                 },
 136
 137                 /* Main body */
 138
 139                 /**
 140                  * Encode the string like PHP's rawurlencode
 141                  *
 142                  * @param {string} str String to be encoded.
 143                  */
 144                 rawurlencode: function ( str ) {
 145                         str = String( str );
 146                         return encodeURIComponent( str )
 147                                 .replace( /!/g, '%21' ).replace( /'/g, '%27' ).replace( /\(/g, '%28' )
 148                                 .replace( /\)/g, '%29' ).replace( /\*/g, '%2A' ).replace( /~/g, '%7E' );
 149                 },
 150
 151                 /**
 152                  * Encode page titles for use in a URL
 153                  * We want / and : to be included as literal characters in our title URLs
 154                  * as they otherwise fatally break the title
 155                  *
 156                  * @param {string} str String to be encoded.
 157                  */
 158                 wikiUrlencode: function ( str ) {
 159                         return util.rawurlencode( str )
 160                                 .replace( /%20/g, '_' ).replace( /%3A/g, ':' ).replace( /%2F/g, '/' );
 161                 },
 162
 163                 /**
 164                  * Get the link to a page name (relative to `wgServer`),
 165                  *
 166                  * @param {string} str Page name to get the link for.
 167                  * @param {Object} [params] A mapping of query parameter names to values,
 168                  *     e.g. `{ action: 'edit' }`.
 169                  * @return {string} Location for a page with name of `str` or boolean false on error.
 170                  */
 171                 getUrl: function ( str, params ) {
 172                         var url = mw.config.get( 'wgArticlePath' ).replace( '$1',
 173                                 util.wikiUrlencode( typeof str === 'string' ? str : mw.config.get( 'wgPageName' ) ) );
 174                         if ( params && !$.isEmptyObject( params ) ) {
 175                                 url += url.indexOf( '?' ) !== -1 ? '&' : '?';
 176                                 url += $.param( params );
 177                         }
 178                         return url;
 179                 },
 180
 181                 /**
 182                  * Get address to a script in the wiki root.
 183                  * For index.php use `mw.config.get( 'wgScript' )`.
 184                  *
 185                  * @since 1.18
 186                  * @param str string Name of script (eg. 'api'), defaults to 'index'
 187                  * @return string Address to script (eg. '/w/api.php' )
 188                  */
 189                 wikiScript: function ( str ) {
 190                         str = str || 'index';
 191                         if ( str === 'index' ) {
 192                                 return mw.config.get( 'wgScript' );
 193                         } else if ( str === 'load' ) {
 194                                 return mw.config.get( 'wgLoadScript' );
 195                         } else {
 196                                 return mw.config.get( 'wgScriptPath' ) + '/' + str +
 197                                         mw.config.get( 'wgScriptExtension' );
 198                         }
 199                 },
 200
 201                 /**
 202                  * Append a new style block to the head and return the CSSStyleSheet object.
 203                  * Use .ownerNode to access the `<style>` element, or use mw.loader#addStyleTag.
 204                  * This function returns the styleSheet object for convience (due to cross-browsers
 205                  * difference as to where it is located).
 206                  *
 207                  *     var sheet = mw.util.addCSS( '.foobar { display: none; }' );
 208                  *     $( foo ).click( function () {
 209                  *         // Toggle the sheet on and off
 210                  *         sheet.disabled = !sheet.disabled;
 211                  *     } );
 212                  *
 213                  * @param {string} text CSS to be appended
 214                  * @return {CSSStyleSheet} Use .ownerNode to get to the `<style>` element.
 215                  */
 216                 addCSS: function ( text ) {
 217                         var s = mw.loader.addStyleTag( text );
 218                         return s.sheet || s.styleSheet || s;
 219                 },
 220
 221                 /**
 222                  * Hide/show the table of contents element
 223                  *
 224                  * @param {jQuery} $toggleLink A jQuery object of the toggle link.
 225                  * @param {Function} [callback] Function to be called after the toggle is
 226                  *  completed (including the animation).
 227                  * @return {Mixed} Boolean visibility of the toc (true if it's visible)
 228                  * or Null if there was no table of contents.
 229                  */
 230                 toggleToc: function ( $toggleLink, callback ) {
 231                         var $tocList = $( '#toc ul:first' );
 232
 233                         // This function shouldn't be called if there's no TOC,
 234                         // but just in case...
 235                         if ( $tocList.length ) {
 236                                 if ( $tocList.is( ':hidden' ) ) {
 237                                         $tocList.slideDown( 'fast', callback );
 238                                         $toggleLink.text( mw.msg( 'hidetoc' ) );
 239                                         $( '#toc' ).removeClass( 'tochidden' );
 240                                         $.cookie( 'mw_hidetoc', null, {
 241                                                 expires: 30,
 242                                                 path: '/'
 243                                         } );
 244                                         return true;
 245                                 } else {
 246                                         $tocList.slideUp( 'fast', callback );
 247                                         $toggleLink.text( mw.msg( 'showtoc' ) );
 248                                         $( '#toc' ).addClass( 'tochidden' );
 249                                         $.cookie( 'mw_hidetoc', '1', {
 250                                                 expires: 30,
 251                                                 path: '/'
 252                                         } );
 253                                         return false;
 254                                 }
 255                         } else {
 256                                 return null;
 257                         }
 258                 },
 259
 260                 /**
 261                  * Grab the URL parameter value for the given parameter.
 262                  * Returns null if not found.
 263                  *
 264                  * @param {string} param The parameter name.
 265                  * @param {string} [url=document.location.href] URL to search through, defaulting to the current document's URL.
 266                  * @return {Mixed} Parameter value or null.
 267                  */
 268                 getParamValue: function ( param, url ) {
 269                         if ( url === undefined ) {
 270                                 url = document.location.href;
 271                         }
 272                         // Get last match, stop at hash
 273                         var     re = new RegExp( '^[^#]*[&?]' + $.escapeRE( param ) + '=([^&#]*)' ),
 274                                 m = re.exec( url );
 275                         if ( m ) {
 276                                 // Beware that decodeURIComponent is not required to understand '+'
 277                                 // by spec, as encodeURIComponent does not produce it.
 278                                 return decodeURIComponent( m[1].replace( /\+/g, '%20' ) );
 279                         }
 280                         return null;
 281                 },
 282
 283                 /**
 284                  * @property {string}
 285                  * Access key prefix. Will be re-defined based on browser/operating system
 286                  * detection in mw.util#init.
 287                  */
 288                 tooltipAccessKeyPrefix: 'alt-',
 289
 290                 /**
 291                  * @property {RegExp}
 292                  * Regex to match accesskey tooltips.
 293                  *
 294                  * Should match:
 295                  *
 296                  * - "ctrl-option-"
 297                  * - "alt-shift-"
 298                  * - "ctrl-alt-"
 299                  * - "ctrl-"
 300                  *
 301                  * The accesskey is matched in group $6.
 302                  */
 303                 tooltipAccessKeyRegexp: /\[(ctrl-)?(option-)?(alt-)?(shift-)?(esc-)?(.)\]$/,
 304
 305                 /**
 306                  * Add the appropriate prefix to the accesskey shown in the tooltip.
 307                  * If the nodeList parameter is given, only those nodes are updated;
 308                  * otherwise, all the nodes that will probably have accesskeys by
 309                  * default are updated.
 310                  *
 311                  * @param {Array|jQuery} [$nodes] A jQuery object, or array of nodes to update.
 312                  */
 313                 updateTooltipAccessKeys: function ( $nodes ) {
 314                         if ( !$nodes ) {
 315                                 // Rather than going into a loop of all anchor tags, limit to few elements that
 316                                 // contain the relevant anchor tags.
 317                                 // Input and label are rare enough that no such optimization is needed
 318                                 $nodes = $( '#column-one a, #mw-head a, #mw-panel a, #p-logo a, input, label' );
 319                         } else if ( !( $nodes instanceof $ ) ) {
 320                                 $nodes = $( $nodes );
 321                         }
 322
 323                         $nodes.attr( 'title', function ( i, val ) {
 324                                 if ( val && util.tooltipAccessKeyRegexp.test( val ) ) {
 325                                         return val.replace( util.tooltipAccessKeyRegexp,
 326                                                 '[' + util.tooltipAccessKeyPrefix + '$6]' );
 327                                 }
 328                                 return val;
 329                         } );
 330                 },
 331
 332                 /*
 333                  * @property {jQuery}
 334                  * A jQuery object that refers to the content area element.
 335                  * Populated by #init.
 336                  */
 337                 $content: null,
 338
 339                 /**
 340                  * Add a link to a portlet menu on the page, such as:
 341                  *
 342                  * p-cactions (Content actions), p-personal (Personal tools),
 343                  * p-navigation (Navigation), p-tb (Toolbox)
 344                  *
 345                  * The first three paramters are required, the others are optional and
 346                  * may be null. Though providing an id and tooltip is recommended.
 347                  *
 348                  * By default the new link will be added to the end of the list. To
 349                  * add the link before a given existing item, pass the DOM node
 350                  * (e.g. `document.getElementById( 'foobar' )`) or a jQuery-selector
 351                  * (e.g. `'#foobar'`) for that item.
 352                  *
 353                  *     mw.util.addPortletLink(
 354                  *         'p-tb', 'http://mediawiki.org/',
 355                  *         'MediaWiki.org', 't-mworg', 'Go to MediaWiki.org ', 'm', '#t-print'
 356                  *     );
 357                  *
 358                  * @param {string} portlet ID of the target portlet ( 'p-cactions' or 'p-personal' etc.)
 359                  * @param {string} href Link URL
 360                  * @param {string} text Link text
 361                  * @param {string} [id] ID of the new item, should be unique and preferably have
 362                  *  the appropriate prefix ( 'ca-', 'pt-', 'n-' or 't-' )
 363                  * @param {string} [tooltip] Text to show when hovering over the link, without accesskey suffix
 364                  * @param {string} [accesskey] Access key to activate this link (one character, try
 365                  *  to avoid conflicts. Use `$( '[accesskey=x]' ).get()` in the console to
 366                  *  see if 'x' is already used.
 367                  * @param {HTMLElement|jQuery|string} [nextnode] Element or jQuery-selector string to the item that
 368                  *  the new item should be added before, should be another item in the same
 369                  *  list, it will be ignored otherwise
 370                  *
 371                  * @return {HTMLElement|null} The added element (a ListItem or Anchor element,
 372                  * depending on the skin) or null if no element was added to the document.
 373                  */
 374                 addPortletLink: function ( portlet, href, text, id, tooltip, accesskey, nextnode ) {
 375                         var $item, $link, $portlet, $ul;
 376
 377                         // Check if there's atleast 3 arguments to prevent a TypeError
 378                         if ( arguments.length < 3 ) {
 379                                 return null;
 380                         }
 381                         // Setup the anchor tag
 382                         $link = $( '<a>' ).attr( 'href', href ).text( text );
 383                         if ( tooltip ) {
 384                                 $link.attr( 'title', tooltip );
 385                         }
 386
 387                         // Select the specified portlet
 388                         $portlet = $( '#' + portlet );
 389                         if ( $portlet.length === 0 ) {
 390                                 return null;
 391                         }
 392                         // Select the first (most likely only) unordered list inside the portlet
 393                         $ul = $portlet.find( 'ul' ).eq( 0 );
 394
 395                         // If it didn't have an unordered list yet, create it
 396                         if ( $ul.length === 0 ) {
 397
 398                                 $ul = $( '<ul>' );
 399
 400                                 // If there's no <div> inside, append it to the portlet directly
 401                                 if ( $portlet.find( 'div:first' ).length === 0 ) {
 402                                         $portlet.append( $ul );
 403                                 } else {
 404                                         // otherwise if there's a div (such as div.body or div.pBody)
 405                                         // append the <ul> to last (most likely only) div
 406                                         $portlet.find( 'div' ).eq( -1 ).append( $ul );
 407                                 }
 408                         }
 409                         // Just in case..
 410                         if ( $ul.length === 0 ) {
 411                                 return null;
 412                         }
 413
 414                         // Unhide portlet if it was hidden before
 415                         $portlet.removeClass( 'emptyPortlet' );
 416
 417                         // Wrap the anchor tag in a list item (and a span if $portlet is a Vector tab)
 418                         // and back up the selector to the list item
 419                         if ( $portlet.hasClass( 'vectorTabs' ) ) {
 420                                 $item = $link.wrap( '<li><span></span></li>' ).parent().parent();
 421                         } else {
 422                                 $item = $link.wrap( '<li></li>' ).parent();
 423                         }
 424
 425                         // Implement the properties passed to the function
 426                         if ( id ) {
 427                                 $item.attr( 'id', id );
 428                         }
 429
 430                         if ( tooltip ) {
 431                                 // Trim any existing accesskey hint and the trailing space
 432                                 tooltip = $.trim( tooltip.replace( util.tooltipAccessKeyRegexp, '' ) );
 433                                 if ( accesskey ) {
 434                                         tooltip += ' [' + accesskey + ']';
 435                                 }
 436                                 $link.attr( 'title', tooltip );
 437                                 if ( accesskey ) {
 438                                         util.updateTooltipAccessKeys( $link );
 439                                 }
 440                         }
 441
 442                         if ( accesskey ) {
 443                                 $link.attr( 'accesskey', accesskey );
 444                         }
 445
 446                         if ( nextnode ) {
 447                                 if ( nextnode.nodeType || typeof nextnode === 'string' ) {
 448                                         // nextnode is a DOM element (was the only option before MW 1.17, in wikibits.js)
 449                                         // or nextnode is a CSS selector for jQuery
 450                                         nextnode = $ul.find( nextnode );
 451                                 } else if ( !nextnode.jquery || ( nextnode.length && nextnode[0].parentNode !== $ul[0] ) ) {
 452                                         // Fallback
 453                                         $ul.append( $item );
 454                                         return $item[0];
 455                                 }
 456                                 if ( nextnode.length === 1 ) {
 457                                         // nextnode is a jQuery object that represents exactly one element
 458                                         nextnode.before( $item );
 459                                         return $item[0];
 460                                 }
 461                         }
 462
 463                         // Fallback (this is the default behavior)
 464                         $ul.append( $item );
 465                         return $item[0];
 466
 467                 },
 468
 469                 /**
 470                  * Add a little box at the top of the screen to inform the user of
 471                  * something, replacing any previous message.
 472                  * Calling with no arguments, with an empty string or null will hide the message
 473                  *
 474                  * @param {Mixed} message The DOM-element, jQuery object or HTML-string to be put inside the message box.
 475                  * to allow CSS/JS to hide different boxes. null = no class used.
 476                  * @deprecated since 1.20 Use mw#notify
 477                  */
 478                 jsMessage: function ( message ) {
 479                         if ( !arguments.length || message === '' || message === null ) {
 480                                 return true;
 481                         }
 482                         if ( typeof message !== 'object' ) {
 483                                 message = $.parseHTML( message );
 484                         }
 485                         mw.notify( message, { autoHide: true, tag: 'legacy' } );
 486                         return true;
 487                 },
 488
 489                 /**
 490                  * Validate a string as representing a valid e-mail address
 491                  * according to HTML5 specification. Please note the specification
 492                  * does not validate a domain with one character.
 493                  *
 494                  * FIXME: should be moved to or replaced by a validation module.
 495                  *
 496                  * @param {string} mailtxt E-mail address to be validated.
 497                  * @return {boolean|null} Null if `mailtxt` was an empty string, otherwise true/false
 498                  * as determined by validation.
 499                  */
 500                 validateEmail: function ( mailtxt ) {
 501                         var rfc5322Atext, rfc1034LdhStr, html5EmailRegexp;
 502
 503                         if ( mailtxt === '' ) {
 504                                 return null;
 505                         }
 506
 507                         // HTML5 defines a string as valid e-mail address if it matches
 508                         // the ABNF:
 509                         //      1 * ( atext / "." ) "@" ldh-str 1*( "." ldh-str )
 510                         // With:
 511                         // - atext   : defined in RFC 5322 section 3.2.3
 512                         // - ldh-str : defined in RFC 1034 section 3.5
 513                         //
 514                         // (see STD 68 / RFC 5234 http://tools.ietf.org/html/std68)
 515                         // First, define the RFC 5322 'atext' which is pretty easy:
 516                         // atext = ALPHA / DIGIT / ; Printable US-ASCII
 517                         //     "!" / "#" /    ; characters not including
 518                         //     "$" / "%" /    ; specials. Used for atoms.
 519                         //     "&" / "'" /
 520                         //     "*" / "+" /
 521                         //     "-" / "/" /
 522                         //     "=" / "?" /
 523                         //     "^" / "_" /
 524                         //     "`" / "{" /
 525                         //     "|" / "}" /
 526                         //     "~"
 527                         rfc5322Atext = 'a-z0-9!#$%&\'*+\\-/=?^_`{|}~';
 528
 529                         // Next define the RFC 1034 'ldh-str'
 530                         //      <domain> ::= <subdomain> | " "
 531                         //      <subdomain> ::= <label> | <subdomain> "." <label>
 532                         //      <label> ::= <letter> [ [ <ldh-str> ] <let-dig> ]
 533                         //      <ldh-str> ::= <let-dig-hyp> | <let-dig-hyp> <ldh-str>
 534                         //      <let-dig-hyp> ::= <let-dig> | "-"
 535                         //      <let-dig> ::= <letter> | <digit>
 536                         rfc1034LdhStr = 'a-z0-9\\-';
 537
 538                         html5EmailRegexp = new RegExp(
 539                                 // start of string
 540                                 '^'
 541                                 +
 542                                 // User part which is liberal :p
 543                                 '[' + rfc5322Atext + '\\.]+'
 544                                 +
 545                                 // 'at'
 546                                 '@'
 547                                 +
 548                                 // Domain first part
 549                                 '[' + rfc1034LdhStr + ']+'
 550                                 +
 551                                 // Optional second part and following are separated by a dot
 552                                 '(?:\\.[' + rfc1034LdhStr + ']+)*'
 553                                 +
 554                                 // End of string
 555                                 '$',
 556                                 // RegExp is case insensitive
 557                                 'i'
 558                         );
 559                         return ( null !== mailtxt.match( html5EmailRegexp ) );
 560                 },
 561
 562                 /**
 563                  * Note: borrows from IP::isIPv4
 564                  *
 565                  * @param {string} address
 566                  * @param {boolean} allowBlock
 567                  * @return {boolean}
 568                  */
 569                 isIPv4Address: function ( address, allowBlock ) {
 570                         if ( typeof address !== 'string' ) {
 571                                 return false;
 572                         }
 573
 574                         var     block = allowBlock ? '(?:\\/(?:3[0-2]|[12]?\\d))?' : '',
 575                                 RE_IP_BYTE = '(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|0?[0-9]?[0-9])',
 576                                 RE_IP_ADD = '(?:' + RE_IP_BYTE + '\\.){3}' + RE_IP_BYTE;
 577
 578                         return address.search( new RegExp( '^' + RE_IP_ADD + block + '$' ) ) !== -1;
 579                 },
 580
 581                 /**
 582                  * Note: borrows from IP::isIPv6
 583                  *
 584                  * @param {string} address
 585                  * @param {boolean} allowBlock
 586                  * @return {boolean}
 587                  */
 588                 isIPv6Address: function ( address, allowBlock ) {
 589                         if ( typeof address !== 'string' ) {
 590                                 return false;
 591                         }
 592
 593                         var     block = allowBlock ? '(?:\\/(?:12[0-8]|1[01][0-9]|[1-9]?\\d))?' : '',
 594                                 RE_IPV6_ADD =
 595                         '(?:' + // starts with "::" (including "::")
 596                         ':(?::|(?::' + '[0-9A-Fa-f]{1,4}' + '){1,7})' +
 597                         '|' + // ends with "::" (except "::")
 598                         '[0-9A-Fa-f]{1,4}' + '(?::' + '[0-9A-Fa-f]{1,4}' + '){0,6}::' +
 599                         '|' + // contains no "::"
 600                         '[0-9A-Fa-f]{1,4}' + '(?::' + '[0-9A-Fa-f]{1,4}' + '){7}' +
 601                         ')';
 602
 603                         if ( address.search( new RegExp( '^' + RE_IPV6_ADD + block + '$' ) ) !== -1 ) {
 604                                 return true;
 605                         }
 606
 607                         RE_IPV6_ADD = // contains one "::" in the middle (single '::' check below)
 608                                 '[0-9A-Fa-f]{1,4}' + '(?:::?' + '[0-9A-Fa-f]{1,4}' + '){1,6}';
 609
 610                         return address.search( new RegExp( '^' + RE_IPV6_ADD + block + '$' ) ) !== -1
 611                                 && address.search( /::/ ) !== -1 && address.search( /::.*::/ ) === -1;
 612                 }
 613         };
 614
 615         /**
 616          * @method wikiGetlink
 617          * @inheritdoc #getUrl
 618          * @deprecated since 1.23 Use #getUrl instead.
 619          */
 620         mw.log.deprecate( util, 'wikiGetlink', util.getUrl, 'Use mw.util.getUrl instead.' );
 621
 622         mw.util = util;
 623
 624 }( mediaWiki, jQuery ) );