resources/mediawiki/mediawiki.util.js

   1 /**
   2  * Implements mediaWiki.util library
   3  */
   4 ( function ( $, mw ) {
   5         "use strict";
   6
   7         // Local cache and alias
   8         var util = {
   9
  10                 /**
  11                  * Initialisation
  12                  * (don't call before document ready)
  13                  */
  14                 init: function () {
  15                         var profile, $tocTitle, $tocToggleLink, hideTocCookie;
  16
  17                         /* Set up $.messageBox */
  18                         $.messageBoxNew( {
  19                                 id: 'mw-js-message',
  20                                 parent: '#content'
  21                         } );
  22
  23                         /* Set tooltipAccessKeyPrefix */
  24                         profile = $.client.profile();
  25
  26                         // Opera on any platform
  27                         if ( profile.name === 'opera' ) {
  28                                 util.tooltipAccessKeyPrefix = 'shift-esc-';
  29
  30                         // Chrome on any platform
  31                         } else if ( profile.name === 'chrome' ) {
  32                                 // Chrome on Mac or Chrome on other platform ?
  33                                 util.tooltipAccessKeyPrefix = ( profile.platform === 'mac'
  34                                         ? 'ctrl-option-' : 'alt-' );
  35
  36                         // Non-Windows Safari with webkit_version > 526
  37                         } else if ( profile.platform !== 'win'
  38                                 && profile.name === 'safari'
  39                                 && profile.layoutVersion > 526 ) {
  40                                 util.tooltipAccessKeyPrefix = 'ctrl-alt-';
  41
  42                         // Safari/Konqueror on any platform, or any browser on Mac
  43                         // (but not Safari on Windows)
  44                         } else if ( !( profile.platform === 'win' && profile.name === 'safari' )
  45                                                         && ( profile.name === 'safari'
  46                                                         || profile.platform === 'mac'
  47                                                         || profile.name === 'konqueror' ) ) {
  48                                 util.tooltipAccessKeyPrefix = 'ctrl-';
  49
  50                         // Firefox 2.x and later
  51                         } else if ( profile.name === 'firefox' && profile.versionBase > '1' ) {
  52                                 util.tooltipAccessKeyPrefix = 'alt-shift-';
  53                         }
  54
  55                         /* Fill $content var */
  56                         if ( $( '#bodyContent' ).length ) {
  57                                 // Vector, Monobook, Chick etc.
  58                                 util.$content = $( '#bodyContent' );
  59
  60                         } else if ( $( '#mw_contentholder' ).length ) {
  61                                 // Modern
  62                                 util.$content = $( '#mw_contentholder' );
  63
  64                         } else if ( $( '#article' ).length ) {
  65                                 // Standard, CologneBlue
  66                                 util.$content = $( '#article' );
  67
  68                         } else {
  69                                 // #content is present on almost all if not all skins. Most skins (the above cases)
  70                                 // have #content too, but as an outer wrapper instead of the article text container.
  71                                 // The skins that don't have an outer wrapper do have #content for everything
  72                                 // so it's a good fallback
  73                                 util.$content = $( '#content' );
  74                         }
  75
  76                         // Table of contents toggle
  77                         $tocTitle = $( '#toctitle' );
  78                         $tocToggleLink = $( '#togglelink' );
  79                         // Only add it if there is a TOC and there is no toggle added already
  80                         if ( $( '#toc' ).length && $tocTitle.length && !$tocToggleLink.length ) {
  81                                 hideTocCookie = $.cookie( 'mw_hidetoc' );
  82                                         $tocToggleLink = $( '<a href="#" class="internal" id="togglelink"></a>' )
  83                                                 .text( mw.msg( 'hidetoc' ) )
  84                                                 .click( function ( e ) {
  85                                                         e.preventDefault();
  86                                                         util.toggleToc( $(this) );
  87                                                 } );
  88                                 $tocTitle.append(
  89                                         $tocToggleLink
  90                                                 .wrap( '<span class="toctoggle"></span>' )
  91                                                 .parent()
  92                                                         .prepend( '&nbsp;[' )
  93                                                         .append( ']&nbsp;' )
  94                                 );
  95
  96                                 if ( hideTocCookie === '1' ) {
  97                                         util.toggleToc( $tocToggleLink );
  98                                 }
  99                         }
 100                 },
 101
 102                 /* Main body */
 103
 104                 /**
 105                  * Encode the string like PHP's rawurlencode
 106                  *
 107                  * @param str string String to be encoded
 108                  */
 109                 rawurlencode: function ( str ) {
 110                         str = String( str );
 111                         return encodeURIComponent( str )
 112                                 .replace( /!/g, '%21' ).replace( /'/g, '%27' ).replace( /\(/g, '%28' )
 113                                 .replace( /\)/g, '%29' ).replace( /\*/g, '%2A' ).replace( /~/g, '%7E' );
 114                 },
 115
 116                 /**
 117                  * Encode page titles for use in a URL
 118                  * We want / and : to be included as literal characters in our title URLs
 119                  * as they otherwise fatally break the title
 120                  *
 121                  * @param str string String to be encoded
 122                  */
 123                 wikiUrlencode: function ( str ) {
 124                         return util.rawurlencode( str )
 125                                 .replace( /%20/g, '_' ).replace( /%3A/g, ':' ).replace( /%2F/g, '/' );
 126                 },
 127
 128                 /**
 129                  * Get the link to a page name (relative to wgServer)
 130                  *
 131                  * @param str String: Page name to get the link for.
 132                  * @return String: Location for a page with name of 'str' or boolean false on error.
 133                  */
 134                 wikiGetlink: function ( str ) {
 135                         return mw.config.get( 'wgArticlePath' ).replace( '$1',
 136                                 util.wikiUrlencode( typeof str === 'string' ? str : mw.config.get( 'wgPageName' ) ) );
 137                 },
 138
 139                 /**
 140                  * Get address to a script in the wiki root.
 141                  * For index.php use mw.config.get( 'wgScript' )
 142                  *
 143                  * @param str string Name of script (eg. 'api'), defaults to 'index'
 144                  * @return string Address to script (eg. '/w/api.php' )
 145                  */
 146                 wikiScript: function ( str ) {
 147                         return mw.config.get( 'wgScriptPath' ) + '/' + ( str || 'index' ) +
 148                                 mw.config.get( 'wgScriptExtension' );
 149                 },
 150
 151                 /**
 152                  * Append a new style block to the head
 153                  *
 154                  * @param text string CSS to be appended
 155                  * @return CSSStyleSheet
 156                  */
 157                 addCSS: function ( text ) {
 158                         var s = document.createElement( 'style' );
 159                         s.type = 'text/css';
 160                         s.rel = 'stylesheet';
 161                         // Insert into document before setting cssText (bug 33305)
 162                         document.getElementsByTagName('head')[0].appendChild( s );
 163                         if ( s.styleSheet ) {
 164                                 s.styleSheet.cssText = text; // IE
 165                         } else {
 166                                 // Safari sometimes borks on null
 167                                 s.appendChild( document.createTextNode( String( text ) ) );
 168                         }
 169                         return s.sheet || s;
 170                 },
 171
 172                 /**
 173                  * Hide/show the table of contents element
 174                  *
 175                  * @param $toggleLink jQuery A jQuery object of the toggle link.
 176                  * @param callback function Function to be called after the toggle is
 177                  * completed (including the animation) (optional)
 178                  * @return mixed Boolean visibility of the toc (true if it's visible)
 179                  * or Null if there was no table of contents.
 180                  */
 181                 toggleToc: function ( $toggleLink, callback ) {
 182                         var $tocList = $( '#toc ul:first' );
 183
 184                         // This function shouldn't be called if there's no TOC,
 185                         // but just in case...
 186                         if ( $tocList.length ) {
 187                                 if ( $tocList.is( ':hidden' ) ) {
 188                                         $tocList.slideDown( 'fast', callback );
 189                                         $toggleLink.text( mw.msg( 'hidetoc' ) );
 190                                         $( '#toc' ).removeClass( 'tochidden' );
 191                                         $.cookie( 'mw_hidetoc', null, {
 192                                                 expires: 30,
 193                                                 path: '/'
 194                                         } );
 195                                         return true;
 196                                 } else {
 197                                         $tocList.slideUp( 'fast', callback );
 198                                         $toggleLink.text( mw.msg( 'showtoc' ) );
 199                                         $( '#toc' ).addClass( 'tochidden' );
 200                                         $.cookie( 'mw_hidetoc', '1', {
 201                                                 expires: 30,
 202                                                 path: '/'
 203                                         } );
 204                                         return false;
 205                                 }
 206                         } else {
 207                                 return null;
 208                         }
 209                 },
 210
 211                 /**
 212                  * Grab the URL parameter value for the given parameter.
 213                  * Returns null if not found.
 214                  *
 215                  * @param param string The parameter name.
 216                  * @param url string URL to search through (optional)
 217                  * @return mixed Parameter value or null.
 218                  */
 219                 getParamValue: function ( param, url ) {
 220                         url = url || document.location.href;
 221                         // Get last match, stop at hash
 222                         var     re = new RegExp( '^[^#]*[&?]' + $.escapeRE( param ) + '=([^&#]*)' ),
 223                                 m = re.exec( url );
 224                         if ( m && m.length > 1 ) {
 225                                 // Beware that decodeURIComponent is not required to understand '+'
 226                                 // by spec, as encodeURIComponent does not produce it.
 227                                 return decodeURIComponent( m[1].replace( /\+/g, '%20' ) );
 228                         }
 229                         return null;
 230                 },
 231
 232                 /**
 233                  * @var string
 234                  * Access key prefix. Will be re-defined based on browser/operating system
 235                  * detection in mw.util.init().
 236                  */
 237                 tooltipAccessKeyPrefix: 'alt-',
 238
 239                 /**
 240                  * @var RegExp
 241                  * Regex to match accesskey tooltips.
 242                  */
 243                 tooltipAccessKeyRegexp: /\[(ctrl-)?(alt-)?(shift-)?(esc-)?(.)\]$/,
 244
 245                 /**
 246                  * Add the appropriate prefix to the accesskey shown in the tooltip.
 247                  * If the nodeList parameter is given, only those nodes are updated;
 248                  * otherwise, all the nodes that will probably have accesskeys by
 249                  * default are updated.
 250                  *
 251                  * @param $nodes {Array|jQuery} [optional] A jQuery object, or array
 252                  * of elements to update.
 253                  */
 254                 updateTooltipAccessKeys: function ( $nodes ) {
 255                         if ( !$nodes ) {
 256                                 // Rather than going into a loop of all anchor tags, limit to few elements that
 257                                 // contain the relevant anchor tags.
 258                                 // Input and label are rare enough that no such optimization is needed
 259                                 $nodes = $( '#column-one a, #mw-head a, #mw-panel a, #p-logo a, input, label' );
 260                         } else if ( !( $nodes instanceof $ ) ) {
 261                                 $nodes = $( $nodes );
 262                         }
 263
 264                         $nodes.attr( 'title', function ( i, val ) {
 265                                 if ( val && util.tooltipAccessKeyRegexp.exec( val ) ) {
 266                                         return val.replace( util.tooltipAccessKeyRegexp,
 267                                                 '[' + util.tooltipAccessKeyPrefix + '$5]' );
 268                                 }
 269                                 return val;
 270                         } );
 271                 },
 272
 273                 /*
 274                  * @var jQuery
 275                  * A jQuery object that refers to the page-content element
 276                  * Populated by init().
 277                  */
 278                 $content: null,
 279
 280                 /**
 281                  * Add a link to a portlet menu on the page, such as:
 282                  *
 283                  * p-cactions (Content actions), p-personal (Personal tools),
 284                  * p-navigation (Navigation), p-tb (Toolbox)
 285                  *
 286                  * The first three paramters are required, the others are optional and
 287                  * may be null. Though providing an id and tooltip is recommended.
 288                  *
 289                  * By default the new link will be added to the end of the list. To
 290                  * add the link before a given existing item, pass the DOM node
 291                  * (document.getElementById( 'foobar' )) or the jQuery-selector
 292                  * ( '#foobar' ) of that item.
 293                  *
 294                  * @example mw.util.addPortletLink(
 295                  *       'p-tb', 'http://mediawiki.org/',
 296                  *       'MediaWiki.org', 't-mworg', 'Go to MediaWiki.org ', 'm', '#t-print'
 297                  * )
 298                  *
 299                  * @param portlet string ID of the target portlet ( 'p-cactions' or 'p-personal' etc.)
 300                  * @param href string Link URL
 301                  * @param text string Link text
 302                  * @param id string ID of the new item, should be unique and preferably have
 303                  * the appropriate prefix ( 'ca-', 'pt-', 'n-' or 't-' )
 304                  * @param tooltip string Text to show when hovering over the link, without accesskey suffix
 305                  * @param accesskey string Access key to activate this link (one character, try
 306                  * to avoid conflicts. Use $( '[accesskey=x]' ).get() in the console to
 307                  * see if 'x' is already used.
 308                  * @param nextnode mixed DOM Node or jQuery-selector string of the item that the new
 309                  * item should be added before, should be another item in the same
 310                  * list, it will be ignored otherwise
 311                  *
 312                  * @return mixed The DOM Node of the added item (a ListItem or Anchor element,
 313                  * depending on the skin) or null if no element was added to the document.
 314                  */
 315                 addPortletLink: function ( portlet, href, text, id, tooltip, accesskey, nextnode ) {
 316                         var $item, $link, $portlet, $ul;
 317
 318                         // Check if there's atleast 3 arguments to prevent a TypeError
 319                         if ( arguments.length < 3 ) {
 320                                 return null;
 321                         }
 322                         // Setup the anchor tag
 323                         $link = $( '<a>' ).attr( 'href', href ).text( text );
 324                         if ( tooltip ) {
 325                                 $link.attr( 'title', tooltip );
 326                         }
 327
 328                         // Some skins don't have any portlets
 329                         // just add it to the bottom of their 'sidebar' element as a fallback
 330                         switch ( mw.config.get( 'skin' ) ) {
 331                         case 'standard':
 332                         case 'cologneblue':
 333                                 $( '#quickbar' ).append( $link.after( '<br/>' ) );
 334                                 return $link[0];
 335                         case 'nostalgia':
 336                                 $( '#searchform' ).before( $link ).before( ' &#124; ' );
 337                                 return $link[0];
 338                         default: // Skins like chick, modern, monobook, myskin, simple, vector...
 339
 340                                 // Select the specified portlet
 341                                 $portlet = $( '#' + portlet );
 342                                 if ( $portlet.length === 0 ) {
 343                                         return null;
 344                                 }
 345                                 // Select the first (most likely only) unordered list inside the portlet
 346                                 $ul = $portlet.find( 'ul' );
 347
 348                                 // If it didn't have an unordered list yet, create it
 349                                 if ( $ul.length === 0 ) {
 350                                         // If there's no <div> inside, append it to the portlet directly
 351                                         if ( $portlet.find( 'div:first' ).length === 0 ) {
 352                                                 $portlet.append( '<ul></ul>' );
 353                                         } else {
 354                                                 // otherwise if there's a div (such as div.body or div.pBody)
 355                                                 // append the <ul> to last (most likely only) div
 356                                                 $portlet.find( 'div' ).eq( -1 ).append( '<ul></ul>' );
 357                                         }
 358                                         // Select the created element
 359                                         $ul = $portlet.find( 'ul' ).eq( 0 );
 360                                 }
 361                                 // Just in case..
 362                                 if ( $ul.length === 0 ) {
 363                                         return null;
 364                                 }
 365
 366                                 // Unhide portlet if it was hidden before
 367                                 $portlet.removeClass( 'emptyPortlet' );
 368
 369                                 // Wrap the anchor tag in a list item (and a span if $portlet is a Vector tab)
 370                                 // and back up the selector to the list item
 371                                 if ( $portlet.hasClass( 'vectorTabs' ) ) {
 372                                         $item = $link.wrap( '<li><span></span></li>' ).parent().parent();
 373                                 } else {
 374                                         $item = $link.wrap( '<li></li>' ).parent();
 375                                 }
 376
 377                                 // Implement the properties passed to the function
 378                                 if ( id ) {
 379                                         $item.attr( 'id', id );
 380                                 }
 381                                 if ( accesskey ) {
 382                                         $link.attr( 'accesskey', accesskey );
 383                                         tooltip += ' [' + accesskey + ']';
 384                                         $link.attr( 'title', tooltip );
 385                                 }
 386                                 if ( accesskey && tooltip ) {
 387                                         util.updateTooltipAccessKeys( $link );
 388                                 }
 389
 390                                 // Where to put our node ?
 391                                 // - nextnode is a DOM element (was the only option before MW 1.17, in wikibits.js)
 392                                 if ( nextnode && nextnode.parentNode === $ul[0] ) {
 393                                         $(nextnode).before( $item );
 394
 395                                 // - nextnode is a CSS selector for jQuery
 396                                 } else if ( typeof nextnode === 'string' && $ul.find( nextnode ).length !== 0 ) {
 397                                         $ul.find( nextnode ).eq( 0 ).before( $item );
 398
 399                                 // If the jQuery selector isn't found within the <ul>,
 400                                 // or if nextnode was invalid or not passed at all,
 401                                 // then just append it at the end of the <ul> (this is the default behaviour)
 402                                 } else {
 403                                         $ul.append( $item );
 404                                 }
 405
 406
 407                                 return $item[0];
 408                         }
 409                 },
 410
 411                 /**
 412                  * Add a little box at the top of the screen to inform the user of
 413                  * something, replacing any previous message.
 414                  * Calling with no arguments, with an empty string or null will hide the message
 415                  *
 416                  * @param message {mixed} The DOM-element, jQuery object or HTML-string to be put inside the message box.
 417                  * @param className {String} Used in adding a class; should be different for each call
 418                  * to allow CSS/JS to hide different boxes. null = no class used.
 419                  * @return {Boolean} True on success, false on failure.
 420                  */
 421                 jsMessage: function ( message, className ) {
 422                         if ( !arguments.length || message === '' || message === null ) {
 423                                 $( '#mw-js-message' ).empty().hide();
 424                                 return true; // Emptying and hiding message is intended behaviour, return true
 425
 426                         } else {
 427                                 // We special-case skin structures provided by the software. Skins that
 428                                 // choose to abandon or significantly modify our formatting can just define
 429                                 // an mw-js-message div to start with.
 430                                 var $messageDiv = $( '#mw-js-message' );
 431                                 if ( !$messageDiv.length ) {
 432                                         $messageDiv = $( '<div id="mw-js-message"></div>' );
 433                                         if ( util.$content.parent().length ) {
 434                                                 util.$content.parent().prepend( $messageDiv );
 435                                         } else {
 436                                                 return false;
 437                                         }
 438                                 }
 439
 440                                 if ( className ) {
 441                                         $messageDiv.prop( 'class', 'mw-js-message-' + className );
 442                                 }
 443
 444                                 if ( typeof message === 'object' ) {
 445                                         $messageDiv.empty();
 446                                         $messageDiv.append( message );
 447                                 } else {
 448                                         $messageDiv.html( message );
 449                                 }
 450
 451                                 $messageDiv.slideDown();
 452                                 return true;
 453                         }
 454                 },
 455
 456                 /**
 457                  * Validate a string as representing a valid e-mail address
 458                  * according to HTML5 specification. Please note the specification
 459                  * does not validate a domain with one character.
 460                  *
 461                  * @todo FIXME: should be moved to or replaced by a JavaScript validation module.
 462                  *
 463                  * @param mailtxt string E-mail address to be validated.
 464                  * @return mixed Null if mailtxt was an empty string, otherwise true/false
 465                  * is determined by validation.
 466                  */
 467                 validateEmail: function ( mailtxt ) {
 468                         var rfc5322_atext, rfc1034_ldh_str, HTML5_email_regexp;
 469
 470                         if ( mailtxt === '' ) {
 471                                 return null;
 472                         }
 473
 474                         /**
 475                          * HTML5 defines a string as valid e-mail address if it matches
 476                          * the ABNF:
 477                          *      1 * ( atext / "." ) "@" ldh-str 1*( "." ldh-str )
 478                          * With:
 479                          * - atext      : defined in RFC 5322 section 3.2.3
 480                          * - ldh-str : defined in RFC 1034 section 3.5
 481                          *
 482                          * (see STD 68 / RFC 5234 http://tools.ietf.org/html/std68):
 483                          */
 484
 485                         /**
 486                          * First, define the RFC 5322 'atext' which is pretty easy:
 487                          * atext = ALPHA / DIGIT / ; Printable US-ASCII
 488                                                  "!" / "#" /     ; characters not including
 489                                                  "$" / "%" /     ; specials. Used for atoms.
 490                                                  "&" / "'" /
 491                                                  "*" / "+" /
 492                                                  "-" / "/" /
 493                                                  "=" / "?" /
 494                                                  "^" / "_" /
 495                                                  "`" / "{" /
 496                                                  "|" / "}" /
 497                                                  "~"
 498                         */
 499                         rfc5322_atext = "a-z0-9!#$%&'*+\\-/=?^_`{|}~";
 500
 501                         /**
 502                          * Next define the RFC 1034 'ldh-str'
 503                          *      <domain> ::= <subdomain> | " "
 504                          *      <subdomain> ::= <label> | <subdomain> "." <label>
 505                          *      <label> ::= <letter> [ [ <ldh-str> ] <let-dig> ]
 506                          *      <ldh-str> ::= <let-dig-hyp> | <let-dig-hyp> <ldh-str>
 507                          *      <let-dig-hyp> ::= <let-dig> | "-"
 508                          *      <let-dig> ::= <letter> | <digit>
 509                          */
 510                         rfc1034_ldh_str = "a-z0-9\\-";
 511
 512                         HTML5_email_regexp = new RegExp(
 513                                 // start of string
 514                                 '^'
 515                                 +
 516                                 // User part which is liberal :p
 517                                 '[' + rfc5322_atext + '\\.]+'
 518                                 +
 519                                 // 'at'
 520                                 '@'
 521                                 +
 522                                 // Domain first part
 523                                 '[' + rfc1034_ldh_str + ']+'
 524                                 +
 525                                 // Optional second part and following are separated by a dot
 526                                 '(?:\\.[' + rfc1034_ldh_str + ']+)*'
 527                                 +
 528                                 // End of string
 529                                 '$',
 530                                 // RegExp is case insensitive
 531                                 'i'
 532                         );
 533                         return (null !== mailtxt.match( HTML5_email_regexp ) );
 534                 },
 535
 536                 /**
 537                  * Note: borrows from IP::isIPv4
 538                  *
 539                  * @param address string
 540                  * @param allowBlock boolean
 541                  * @return boolean
 542                  */
 543                 isIPv4Address: function ( address, allowBlock ) {
 544                         if ( typeof address !== 'string' ) {
 545                                 return false;
 546                         }
 547
 548                         var     block = allowBlock ? '(?:\\/(?:3[0-2]|[12]?\\d))?' : '',
 549                                 RE_IP_BYTE = '(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|0?[0-9]?[0-9])',
 550                                 RE_IP_ADD = '(?:' + RE_IP_BYTE + '\\.){3}' + RE_IP_BYTE;
 551
 552                         return address.search( new RegExp( '^' + RE_IP_ADD + block + '$' ) ) !== -1;
 553                 },
 554
 555                 /**
 556                  * Note: borrows from IP::isIPv6
 557                  *
 558                  * @param address string
 559                  * @param allowBlock boolean
 560                  * @return boolean
 561                  */
 562                 isIPv6Address: function ( address, allowBlock ) {
 563                         if ( typeof address !== 'string' ) {
 564                                 return false;
 565                         }
 566
 567                         var     block = allowBlock ? '(?:\\/(?:12[0-8]|1[01][0-9]|[1-9]?\\d))?' : '',
 568                                 RE_IPV6_ADD =
 569                         '(?:' + // starts with "::" (including "::")
 570                         ':(?::|(?::' + '[0-9A-Fa-f]{1,4}' + '){1,7})' +
 571                         '|' + // ends with "::" (except "::")
 572                         '[0-9A-Fa-f]{1,4}' + '(?::' + '[0-9A-Fa-f]{1,4}' + '){0,6}::' +
 573                         '|' + // contains no "::"
 574                         '[0-9A-Fa-f]{1,4}' + '(?::' + '[0-9A-Fa-f]{1,4}' + '){7}' +
 575                         ')';
 576
 577                         if ( address.search( new RegExp( '^' + RE_IPV6_ADD + block + '$' ) ) !== -1 ) {
 578                                 return true;
 579                         }
 580
 581                         RE_IPV6_ADD = // contains one "::" in the middle (single '::' check below)
 582                                 '[0-9A-Fa-f]{1,4}' + '(?:::?' + '[0-9A-Fa-f]{1,4}' + '){1,6}';
 583
 584                         return address.search( new RegExp( '^' + RE_IPV6_ADD + block + '$' ) ) !== -1
 585                                 && address.search( /::/ ) !== -1 && address.search( /::.*::/ ) === -1;
 586                 }
 587         };
 588
 589         mw.util = util;
 590
 591 } )( jQuery, mediaWiki );