remove unused message
[lhc/web/wiklou.git] / includes / Parser.php
index 4658d1c..dd84154 100644 (file)
@@ -6,10 +6,6 @@
  * @subpackage Parser
  */
 
-/** */
-require_once( 'Sanitizer.php' );
-require_once( 'HttpFunctions.php' );
-
 /**
  * Update this version number when the ParserOutput format
  * changes in an incompatible way, so the parser cache
@@ -37,6 +33,9 @@ define( 'OT_HTML', 1 );
 define( 'OT_WIKI', 2 );
 define( 'OT_MSG' , 3 );
 
+# Flags for setFunctionHook
+define( 'SFH_NO_HASH', 1 );
+
 # string parameter for extractTags which will cause it
 # to strip HTML comments in addition to regular
 # <XML>-style tags. This should not be anything we
@@ -104,11 +103,11 @@ class Parser
         * @private
         */
        # Persistent:
-       var $mTagHooks, $mFunctionHooks;
+       var $mTagHooks, $mFunctionHooks, $mFunctionSynonyms, $mVariables;
 
        # Cleared with clearState():
        var $mOutput, $mAutonumber, $mDTopen, $mStripState = array();
-       var $mVariables, $mIncludeCount, $mArgStack, $mLastSection, $mInPre;
+       var $mIncludeCount, $mArgStack, $mLastSection, $mInPre;
        var $mInterwikiLinkHolders, $mLinkHolders, $mUniqPrefix;
        var $mTemplates,        // cache of already loaded templates, avoids
                                // multiple SQL queries for the same string
@@ -132,21 +131,69 @@ class Parser
        function Parser() {
                $this->mTagHooks = array();
                $this->mFunctionHooks = array();
-               $this->clearState();
-               $this->setHook( 'pre', array( $this, 'renderPreTag' ) );
+               $this->mFunctionSynonyms = array( 0 => array(), 1 => array() );
+               $this->mFirstCall = true;
        }
 
+       /**
+        * Do various kinds of initialisation on the first call of the parser
+        */
+       function firstCallInit() {
+               if ( !$this->mFirstCall ) {
+                       return;
+               }
+
+               wfProfileIn( __METHOD__ );
+               global $wgAllowDisplayTitle, $wgAllowSlowParserFunctions;
+
+               $this->setHook( 'pre', array( $this, 'renderPreTag' ) );
+
+               $this->setFunctionHook( 'ns', array( 'CoreParserFunctions', 'ns' ), SFH_NO_HASH );
+               $this->setFunctionHook( 'urlencode', array( 'CoreParserFunctions', 'urlencode' ), SFH_NO_HASH );
+               $this->setFunctionHook( 'lcfirst', array( 'CoreParserFunctions', 'lcfirst' ), SFH_NO_HASH );
+               $this->setFunctionHook( 'ucfirst', array( 'CoreParserFunctions', 'ucfirst' ), SFH_NO_HASH );
+               $this->setFunctionHook( 'lc', array( 'CoreParserFunctions', 'lc' ), SFH_NO_HASH );
+               $this->setFunctionHook( 'uc', array( 'CoreParserFunctions', 'uc' ), SFH_NO_HASH );
+               $this->setFunctionHook( 'localurl', array( 'CoreParserFunctions', 'localurl' ), SFH_NO_HASH );
+               $this->setFunctionHook( 'localurle', array( 'CoreParserFunctions', 'localurle' ), SFH_NO_HASH );
+               $this->setFunctionHook( 'fullurl', array( 'CoreParserFunctions', 'fullurl' ), SFH_NO_HASH );
+               $this->setFunctionHook( 'fullurle', array( 'CoreParserFunctions', 'fullurle' ), SFH_NO_HASH );
+               $this->setFunctionHook( 'formatnum', array( 'CoreParserFunctions', 'formatnum' ), SFH_NO_HASH );
+               $this->setFunctionHook( 'grammar', array( 'CoreParserFunctions', 'grammar' ), SFH_NO_HASH );
+               $this->setFunctionHook( 'plural', array( 'CoreParserFunctions', 'plural' ), SFH_NO_HASH );
+               $this->setFunctionHook( 'numberofpages', array( 'CoreParserFunctions', 'numberofpages' ), SFH_NO_HASH );
+               $this->setFunctionHook( 'numberofusers', array( 'CoreParserFunctions', 'numberofusers' ), SFH_NO_HASH );
+               $this->setFunctionHook( 'numberofarticles', array( 'CoreParserFunctions', 'numberofarticles' ), SFH_NO_HASH );
+               $this->setFunctionHook( 'numberoffiles', array( 'CoreParserFunctions', 'numberoffiles' ), SFH_NO_HASH );
+               $this->setFunctionHook( 'numberofadmins', array( 'CoreParserFunctions', 'numberofadmins' ), SFH_NO_HASH );
+               $this->setFunctionHook( 'language', array( 'CoreParserFunctions', 'language' ), SFH_NO_HASH );
+
+               if ( $wgAllowDisplayTitle ) {
+                       $this->setFunctionHook( 'displaytitle', array( 'CoreParserFunctions', 'displaytitle' ), SFH_NO_HASH );
+               }
+               if ( $wgAllowSlowParserFunctions ) {
+                       $this->setFunctionHook( 'pagesinnamespace', array( 'CoreParserFunctions', 'pagesinnamespace' ), SFH_NO_HASH );
+               }
+               
+               $this->initialiseVariables();
+
+               $this->mFirstCall = false;
+               wfProfileOut( __METHOD__ );
+       }               
+
        /**
         * Clear Parser state
         *
         * @private
         */
        function clearState() {
+               if ( $this->mFirstCall ) {
+                       $this->firstCallInit();
+               }
                $this->mOutput = new ParserOutput;
                $this->mAutonumber = 0;
                $this->mLastSection = '';
                $this->mDTopen = false;
-               $this->mVariables = false;
                $this->mIncludeCount = array();
                $this->mStripState = array();
                $this->mArgStack = array();
@@ -179,7 +226,7 @@ class Parser
 
                $this->mShowToc = true;
                $this->mForceTocPosition = false;
-               
+
                wfRunHooks( 'ParserClearState', array( &$this ) );
        }
 
@@ -221,7 +268,10 @@ class Parser
 
                $this->mOptions = $options;
                $this->mTitle =& $title;
-               $this->mRevisionId = $revid;
+               $oldRevisionId = $this->mRevisionId;
+               if( $revid !== null ) {
+                       $this->mRevisionId = $revid;
+               }
                $this->mOutputType = OT_HTML;
 
                //$text = $this->strip( $text, $this->mStripState );
@@ -274,8 +324,8 @@ class Parser
                } else {
                        # attempt to sanitize at least some nesting problems
                        # (bug #2702 and quite a few others)
-                       $tidyregs = array(      
-                               # ''Something [http://www.cool.com cool''] --> 
+                       $tidyregs = array(
+                               # ''Something [http://www.cool.com cool''] -->
                                # <i>Something</i><a href="http://www.cool.com"..><i>cool></i></a>
                                '/(<([bi])>)(<([bi])>)?([^<]*)(<\/?a[^<]*>)([^<]*)(<\/\\4>)?(<\/\\2>)/' =>
                                '\\1\\3\\5\\8\\9\\6\\1\\3\\7\\8\\9',
@@ -290,10 +340,10 @@ class Parser
                                '\\1\\3&lt;div\\5&gt;\\6&lt;/div&gt;\\8\\9',
                                # remove empty italic or bold tag pairs, some
                                # introduced by rules above
-                               '/<([bi])><\/\\1>/' => '' 
+                               '/<([bi])><\/\\1>/' => '',
                        );
 
-                       $text = preg_replace( 
+                       $text = preg_replace(
                                array_keys( $tidyregs ),
                                array_values( $tidyregs ),
                                $text );
@@ -302,6 +352,7 @@ class Parser
                wfRunHooks( 'ParserAfterTidy', array( &$this, &$text ) );
 
                $this->mOutput->setText( $text );
+               $this->mRevisionId = $oldRevisionId;
                wfProfileOut( $fname );
 
                return $this->mOutput;
@@ -320,6 +371,11 @@ class Parser
        function &getTitle() { return $this->mTitle; }
        function getOptions() { return $this->mOptions; }
 
+       function getFunctionLang() {
+               global $wgLang, $wgContLang;
+               return $this->mOptions->getInterfaceMessage() ? $wgLang : $wgContLang;
+       }
+
        /**
         * Replaces all occurrences of HTML-style comments and the given tags
         * in the text with a random marker and returns teh next text. The output
@@ -411,10 +467,13 @@ class Parser
         *  will be stripped in addition to other tags. This is important
         *  for section editing, where these comments cause confusion when
         *  counting the sections in the wikisource
+        * 
+        * @param array dontstrip contains tags which should not be stripped;
+        *  used to prevent stipping of <gallery> when saving (fixes bug 2700)
         *
         * @private
         */
-       function strip( $text, &$state, $stripcomments = false ) {
+       function strip( $text, &$state, $stripcomments = false , $dontstrip = array () ) {
                $render = ($this->mOutputType == OT_HTML);
 
                # Replace any instances of the placeholders
@@ -433,10 +492,15 @@ class Parser
                        $elements[] = 'math';
                }
                
-
+               # Removing $dontstrip tags from $elements list (currently only 'gallery', fixing bug 2700)
+               foreach ( $elements AS $k => $v ) {
+                       if ( !in_array ( $v , $dontstrip ) ) continue;
+                       unset ( $elements[$k] );
+               }
+               
                $matches = array();
                $text = Parser::extractTagsAndParams( $elements, $text, $matches, $uniq_prefix );
-               
+
                foreach( $matches as $marker => $data ) {
                        list( $element, $content, $params, $tag ) = $data;
                        if( $render ) {
@@ -465,7 +529,7 @@ class Parser
                                        $output = MathRenderer::renderMath( $content );
                                        break;
                                case 'gallery':
-                                       $output = $this->renderImageGallery( $content );
+                                       $output = $this->renderImageGallery( $content, $params );
                                        break;
                                default:
                                        if( isset( $this->mTagHooks[$tagName] ) ) {
@@ -737,13 +801,13 @@ class Parser
                                }
                                $after = substr ( $x , 1 ) ;
                                if ( $fc == '!' ) $after = str_replace ( '!!' , '||' , $after ) ;
-                               
+
                                // Split up multiple cells on the same line.
                                // FIXME: This can result in improper nesting of tags processed
                                // by earlier parser steps, but should avoid splitting up eg
                                // attribute values containing literal "||".
                                $after = wfExplodeMarkup( '||', $after );
-                               
+
                                $t[$k] = '' ;
 
                                # Loop through each table cell
@@ -821,7 +885,7 @@ class Parser
                $text = strtr( $text, array( '<onlyinclude>' => '' , '</onlyinclude>' => '' ) );
                $text = strtr( $text, array( '<noinclude>' => '', '</noinclude>' => '') );
                $text = preg_replace( '/<includeonly>.*?<\/includeonly>/s', '', $text );
-               
+
                $text = Sanitizer::removeHTMLtags( $text, array( &$this, 'attributeStripCallback' ) );
 
                $text = $this->replaceVariables( $text, $args );
@@ -835,6 +899,7 @@ class Parser
                $text = preg_replace( '/(^|\n)-----*/', '\\1<hr />', $text );
 
                $text = $this->stripToc( $text );
+               $this->stripNoGallery( $text );
                $text = $this->doHeadings( $text );
                if($this->mOptions->getUseDynamicDates()) {
                        $df =& DateFormatter::getInstance();
@@ -1132,10 +1197,8 @@ class Parser
                        }
 
                        $text = $wgContLang->markNoConversion($text);
-
-                       # Normalize any HTML entities in input. They will be
-                       # re-escaped by makeExternalLink().
-                       $url = Sanitizer::decodeCharReferences( $url );
+                       
+                       $url = Sanitizer::cleanUrl( $url );
 
                        # Process the trail (i.e. everything after this link up until start of the next link),
                        # replacing any non-bracketed links
@@ -1216,9 +1279,7 @@ class Parser
                                        $url = substr( $url, 0, -$numSepChars );
                                }
 
-                               # Normalize any HTML entities in input. They will be
-                               # re-escaped by makeExternalLink() or maybeMakeExternalImage()
-                               $url = Sanitizer::decodeCharReferences( $url );
+                               $url = Sanitizer::cleanUrl( $url );
 
                                # Is this an external image?
                                $text = $this->maybeMakeExternalImage( $url );
@@ -1249,7 +1310,7 @@ class Parser
         *        the URL differently; as a workaround, just use the output for
         *        statistical records, not for actual linking/output.
         */
-       function replaceUnusualEscapes( $url ) {
+       static function replaceUnusualEscapes( $url ) {
                return preg_replace_callback( '/%[0-9A-Fa-f]{2}/',
                        array( 'Parser', 'replaceUnusualEscapesCallback' ), $url );
        }
@@ -1260,7 +1321,7 @@ class Parser
         * @static
         * @private
         */
-       function replaceUnusualEscapesCallback( $matches ) {
+       private static function replaceUnusualEscapesCallback( $matches ) {
                $char = urldecode( $matches[0] );
                $ord = ord( $char );
                // Is it an unsafe or HTTP reserved character according to RFC 1738?
@@ -1390,7 +1451,7 @@ class Parser
                                        $m[3] = $n[1];
                                }
                                # fix up urlencoded title texts
-                               if(preg_match('/%/', $m[1] )) 
+                               if(preg_match('/%/', $m[1] ))
                                        # Should anchors '#' also be rejected?
                                        $m[1] = str_replace( array('<', '>'), array('&lt;', '&gt;'), urldecode($m[1]) );
                                $trail = $m[3];
@@ -1508,6 +1569,9 @@ class Parser
 
                                                wfProfileOut( "$fname-image" );
                                                continue;
+                                       } else {
+                                               # We still need to record the image's presence on the page
+                                               $this->mOutput->addImage( $nt->getDBkey() );
                                        }
                                        wfProfileOut( "$fname-image" );
 
@@ -1527,6 +1591,7 @@ class Parser
                                                $sortkey = $text;
                                        }
                                        $sortkey = Sanitizer::decodeCharReferences( $sortkey );
+                                       $sortkey = str_replace( "\n", '', $sortkey );
                                        $sortkey = $wgContLang->convertCategoryKey( $sortkey );
                                        $this->mOutput->addCategory( $nt->getDBkey(), $sortkey );
 
@@ -1559,7 +1624,7 @@ class Parser
                                $s .= $this->makeKnownLinkHolder( $nt, $text, '', $trail, $prefix );
                                continue;
                        } elseif( $ns == NS_IMAGE ) {
-                               $img = Image::newFromTitle( $nt );
+                               $img = new Image( $nt );
                                if( $img->exists() ) {
                                        // Force a blue link if the file exists; may be a remote
                                        // upload on the shared repository, and we want to see its
@@ -1978,14 +2043,14 @@ class Parser
        function findColonNoLinks($str, &$before, &$after) {
                $fname = 'Parser::findColonNoLinks';
                wfProfileIn( $fname );
-               
+
                $pos = strpos( $str, ':' );
                if( $pos === false ) {
                        // Nothing to find!
                        wfProfileOut( $fname );
                        return false;
                }
-               
+
                $lt = strpos( $str, '<' );
                if( $lt === false || $lt > $pos ) {
                        // Easy; no tag nesting to worry about
@@ -1994,14 +2059,14 @@ class Parser
                        wfProfileOut( $fname );
                        return $pos;
                }
-               
+
                // Ugly state machine to walk through avoiding tags.
                $state = MW_COLON_STATE_TEXT;
                $stack = 0;
                $len = strlen( $str );
                for( $i = 0; $i < $len; $i++ ) {
                        $c = $str{$i};
-                       
+
                        switch( $state ) {
                        // (Using the number is a performance hack for common cases)
                        case 0: // MW_COLON_STATE_TEXT:
@@ -2152,104 +2217,106 @@ class Parser
                wfRunHooks( 'ParserGetVariableValueTs', array( &$this, &$ts ) );
 
                switch ( $index ) {
-                       case MAG_CURRENTMONTH:
+                       case 'currentmonth':
                                return $varCache[$index] = $wgContLang->formatNum( date( 'm', $ts ) );
-                       case MAG_CURRENTMONTHNAME:
+                       case 'currentmonthname':
                                return $varCache[$index] = $wgContLang->getMonthName( date( 'n', $ts ) );
-                       case MAG_CURRENTMONTHNAMEGEN:
+                       case 'currentmonthnamegen':
                                return $varCache[$index] = $wgContLang->getMonthNameGen( date( 'n', $ts ) );
-                       case MAG_CURRENTMONTHABBREV:
+                       case 'currentmonthabbrev':
                                return $varCache[$index] = $wgContLang->getMonthAbbreviation( date( 'n', $ts ) );
-                       case MAG_CURRENTDAY:
+                       case 'currentday':
                                return $varCache[$index] = $wgContLang->formatNum( date( 'j', $ts ) );
-                       case MAG_CURRENTDAY2:
+                       case 'currentday2':
                                return $varCache[$index] = $wgContLang->formatNum( date( 'd', $ts ) );
-                       case MAG_PAGENAME:
+                       case 'pagename':
                                return $this->mTitle->getText();
-                       case MAG_PAGENAMEE:
+                       case 'pagenamee':
                                return $this->mTitle->getPartialURL();
-                       case MAG_FULLPAGENAME:
+                       case 'fullpagename':
                                return $this->mTitle->getPrefixedText();
-                       case MAG_FULLPAGENAMEE:
+                       case 'fullpagenamee':
                                return $this->mTitle->getPrefixedURL();
-                       case MAG_SUBPAGENAME:
+                       case 'subpagename':
                                return $this->mTitle->getSubpageText();
-                       case MAG_SUBPAGENAMEE:
+                       case 'subpagenamee':
                                return $this->mTitle->getSubpageUrlForm();
-                       case MAG_BASEPAGENAME:
+                       case 'basepagename':
                                return $this->mTitle->getBaseText();
-                       case MAG_BASEPAGENAMEE:
+                       case 'basepagenamee':
                                return wfUrlEncode( str_replace( ' ', '_', $this->mTitle->getBaseText() ) );
-                       case MAG_TALKPAGENAME:
+                       case 'talkpagename':
                                if( $this->mTitle->canTalk() ) {
                                        $talkPage = $this->mTitle->getTalkPage();
                                        return $talkPage->getPrefixedText();
                                } else {
                                        return '';
                                }
-                       case MAG_TALKPAGENAMEE:
+                       case 'talkpagenamee':
                                if( $this->mTitle->canTalk() ) {
                                        $talkPage = $this->mTitle->getTalkPage();
                                        return $talkPage->getPrefixedUrl();
                                } else {
                                        return '';
                                }
-                       case MAG_SUBJECTPAGENAME:
+                       case 'subjectpagename':
                                $subjPage = $this->mTitle->getSubjectPage();
                                return $subjPage->getPrefixedText();
-                       case MAG_SUBJECTPAGENAMEE:
+                       case 'subjectpagenamee':
                                $subjPage = $this->mTitle->getSubjectPage();
                                return $subjPage->getPrefixedUrl();
-                       case MAG_REVISIONID:
+                       case 'revisionid':
                                return $this->mRevisionId;
-                       case MAG_NAMESPACE:
+                       case 'namespace':
                                return str_replace('_',' ',$wgContLang->getNsText( $this->mTitle->getNamespace() ) );
-                       case MAG_NAMESPACEE:
+                       case 'namespacee':
                                return wfUrlencode( $wgContLang->getNsText( $this->mTitle->getNamespace() ) );
-                       case MAG_TALKSPACE:
+                       case 'talkspace':
                                return $this->mTitle->canTalk() ? str_replace('_',' ',$this->mTitle->getTalkNsText()) : '';
-                       case MAG_TALKSPACEE:
+                       case 'talkspacee':
                                return $this->mTitle->canTalk() ? wfUrlencode( $this->mTitle->getTalkNsText() ) : '';
-                       case MAG_SUBJECTSPACE:
+                       case 'subjectspace':
                                return $this->mTitle->getSubjectNsText();
-                       case MAG_SUBJECTSPACEE:
+                       case 'subjectspacee':
                                return( wfUrlencode( $this->mTitle->getSubjectNsText() ) );
-                       case MAG_CURRENTDAYNAME:
+                       case 'currentdayname':
                                return $varCache[$index] = $wgContLang->getWeekdayName( date( 'w', $ts ) + 1 );
-                       case MAG_CURRENTYEAR:
+                       case 'currentyear':
                                return $varCache[$index] = $wgContLang->formatNum( date( 'Y', $ts ), true );
-                       case MAG_CURRENTTIME:
+                       case 'currenttime':
                                return $varCache[$index] = $wgContLang->time( wfTimestamp( TS_MW, $ts ), false, false );
-                       case MAG_CURRENTWEEK:
+                       case 'currentweek':
                                // @bug 4594 PHP5 has it zero padded, PHP4 does not, cast to
                                // int to remove the padding
                                return $varCache[$index] = $wgContLang->formatNum( (int)date( 'W', $ts ) );
-                       case MAG_CURRENTDOW:
+                       case 'currentdow':
                                return $varCache[$index] = $wgContLang->formatNum( date( 'w', $ts ) );
-                       case MAG_NUMBEROFARTICLES:
+                       case 'numberofarticles':
                                return $varCache[$index] = $wgContLang->formatNum( wfNumberOfArticles() );
-                       case MAG_NUMBEROFFILES:
+                       case 'numberoffiles':
                                return $varCache[$index] = $wgContLang->formatNum( wfNumberOfFiles() );
-                       case MAG_NUMBEROFUSERS:
+                       case 'numberofusers':
                                return $varCache[$index] = $wgContLang->formatNum( wfNumberOfUsers() );
-                       case MAG_NUMBEROFPAGES:
+                       case 'numberofpages':
                                return $varCache[$index] = $wgContLang->formatNum( wfNumberOfPages() );
-                       case MAG_CURRENTTIMESTAMP:
+                       case 'numberofadmins':
+                               return $varCache[$index]  = $wgContLang->formatNum( wfNumberOfAdmins() );
+                       case 'currenttimestamp':
                                return $varCache[$index] = wfTimestampNow();
-                       case MAG_CURRENTVERSION:
+                       case 'currentversion':
                                global $wgVersion;
                                return $wgVersion;
-                       case MAG_SITENAME:
+                       case 'sitename':
                                return $wgSitename;
-                       case MAG_SERVER:
+                       case 'server':
                                return $wgServer;
-                       case MAG_SERVERNAME:
+                       case 'servername':
                                return $wgServerName;
-                       case MAG_SCRIPTPATH:
+                       case 'scriptpath':
                                return $wgScriptPath;
-                       case MAG_DIRECTIONMARK:
+                       case 'directionmark':
                                return $wgContLang->getDirMark();
-                       case MAG_CONTENTLANGUAGE:
+                       case 'contentlanguage':
                                global $wgContLanguageCode;
                                return $wgContLanguageCode;
                        default:
@@ -2269,9 +2336,10 @@ class Parser
        function initialiseVariables() {
                $fname = 'Parser::initialiseVariables';
                wfProfileIn( $fname );
-               global $wgVariableIDs;
+               $variableIDs = MagicWord::getVariableIDs();
+
                $this->mVariables = array();
-               foreach ( $wgVariableIDs as $id ) {
+               foreach ( $variableIDs as $id ) {
                        $mw =& MagicWord::get( $id );
                        $mw->addToArray( $this->mVariables, $id );
                }
@@ -2293,6 +2361,7 @@ class Parser
         * @private
         */
        function replace_callback ($text, $callbacks) {
+               wfProfileIn( __METHOD__ . '-self' );
                $openingBraceStack = array();   # this array will hold a stack of parentheses which are not closed yet
                $lastOpeningBrace = -1;                 # last not closed parentheses
 
@@ -2398,10 +2467,12 @@ class Parser
                                                                                 'text' => substr($text, $pieceStart, $pieceEnd - $pieceStart),
                                                                                 'title' => trim($openingBraceStack[$lastOpeningBrace]['title']),
                                                                                 'parts' => $openingBraceStack[$lastOpeningBrace]['parts'],
-                                                                                'lineStart' => (($pieceStart > 0) && ($text[$pieceStart-1] == '\n')),
+                                                                                'lineStart' => (($pieceStart > 0) && ($text[$pieceStart-1] == "\n")),
                                                                                 );
                                                # finally we can call a user callback and replace piece of text
+                                               wfProfileOut( __METHOD__ . '-self' );
                                                $replaceWith = call_user_func( $matchingCallback, $cbArgs );
+                                               wfProfileIn( __METHOD__ . '-self' );
                                                $text = substr($text, 0, $pieceStart) . $replaceWith . substr($text, $pieceEnd);
                                                $i = $pieceStart + strlen($replaceWith) - 1;
                                        }
@@ -2449,6 +2520,7 @@ class Parser
                        }
                }
 
+               wfProfileOut( __METHOD__ . '-self' );
                return $text;
        }
 
@@ -2496,7 +2568,7 @@ class Parser
                wfProfileOut( $fname );
                return $text;
        }
-       
+
        /**
         * Replace magic variables
         * @private
@@ -2505,13 +2577,10 @@ class Parser
                $fname = 'Parser::variableSubstitution';
                $varname = $matches[1];
                wfProfileIn( $fname );
-               if ( !$this->mVariables ) {
-                       $this->initialiseVariables();
-               }
                $skip = false;
                if ( $this->mOutputType == OT_WIKI ) {
                        # Do only magic variables prefixed by SUBST
-                       $mwSubst =& MagicWord::get( MAG_SUBST );
+                       $mwSubst =& MagicWord::get( 'subst' );
                        if (!$mwSubst->matchStartAndRemove( $varname ))
                                $skip = true;
                        # Note that if we don't substitute the variable below,
@@ -2605,7 +2674,7 @@ class Parser
 
                # SUBST
                if ( !$found ) {
-                       $mwSubst =& MagicWord::get( MAG_SUBST );
+                       $mwSubst =& MagicWord::get( 'subst' );
                        if ( $mwSubst->matchStartAndRemove( $part1 ) xor ($this->mOutputType == OT_WIKI) ) {
                                # One of two possibilities is true:
                                # 1) Found SUBST but not in the PST phase
@@ -2621,23 +2690,23 @@ class Parser
                # MSG, MSGNW, INT and RAW
                if ( !$found ) {
                        # Check for MSGNW:
-                       $mwMsgnw =& MagicWord::get( MAG_MSGNW );
+                       $mwMsgnw =& MagicWord::get( 'msgnw' );
                        if ( $mwMsgnw->matchStartAndRemove( $part1 ) ) {
                                $nowiki = true;
                        } else {
                                # Remove obsolete MSG:
-                               $mwMsg =& MagicWord::get( MAG_MSG );
+                               $mwMsg =& MagicWord::get( 'msg' );
                                $mwMsg->matchStartAndRemove( $part1 );
                        }
                        
                        # Check for RAW:
-                       $mwRaw =& MagicWord::get( MAG_RAW );
+                       $mwRaw =& MagicWord::get( 'raw' );
                        if ( $mwRaw->matchStartAndRemove( $part1 ) ) {
                                $forceRawInterwiki = true;
                        }
                        
                        # Check if it is an internal message
-                       $mwInt =& MagicWord::get( MAG_INT );
+                       $mwInt =& MagicWord::get( 'int' );
                        if ( $mwInt->matchStartAndRemove( $part1 ) ) {
                                if ( $this->incrementIncludeCount( 'int:'.$part1 ) ) {
                                        $text = $linestart . wfMsgReal( $part1, $args, true );
@@ -2646,187 +2715,26 @@ class Parser
                        }
                }
 
-               # NS
+               # Parser functions
                if ( !$found ) {
-                       # Check for NS: (namespace expansion)
-                       $mwNs = MagicWord::get( MAG_NS );
-                       if ( $mwNs->matchStartAndRemove( $part1 ) ) {
-                               if ( intval( $part1 ) || $part1 == "0" ) {
-                                       $text = $linestart . $wgContLang->getNsText( intval( $part1 ) );
-                                       $found = true;
+                       wfProfileIn( __METHOD__ . '-pfunc' );
+                       
+                       $colonPos = strpos( $part1, ':' );
+                       if ( $colonPos !== false ) {
+                               # Case sensitive functions
+                               $function = substr( $part1, 0, $colonPos );
+                               if ( isset( $this->mFunctionSynonyms[1][$function] ) ) {
+                                       $function = $this->mFunctionSynonyms[1][$function];
                                } else {
-                                       $index = Namespace::getCanonicalIndex( strtolower( $part1 ) );
-                                       if ( !is_null( $index ) ) {
-                                               $text = $linestart . $wgContLang->getNsText( $index );
-                                               $found = true;
-                                       }
-                               }
-                       }
-               }
-
-               # URLENCODE
-               if( !$found ) {
-                       $urlencode =& MagicWord::get( MAG_URLENCODE );
-                       if( $urlencode->matchStartAndRemove( $part1 ) ) {
-                               $text = $linestart . urlencode( $part1 );
-                               $found = true;
-                       }
-               }
-
-               # LCFIRST, UCFIRST, LC and UC
-               if ( !$found ) {
-                       $lcfirst =& MagicWord::get( MAG_LCFIRST );
-                       $ucfirst =& MagicWord::get( MAG_UCFIRST );
-                       $lc =& MagicWord::get( MAG_LC );
-                       $uc =& MagicWord::get( MAG_UC );
-                       if ( $lcfirst->matchStartAndRemove( $part1 ) ) {
-                               $text = $linestart . $wgContLang->lcfirst( $part1 );
-                               $found = true;
-                       } else if ( $ucfirst->matchStartAndRemove( $part1 ) ) {
-                               $text = $linestart . $wgContLang->ucfirst( $part1 );
-                               $found = true;
-                       } else if ( $lc->matchStartAndRemove( $part1 ) ) {
-                               $text = $linestart . $wgContLang->lc( $part1 );
-                               $found = true;
-                       } else if ( $uc->matchStartAndRemove( $part1 ) ) {
-                                $text = $linestart . $wgContLang->uc( $part1 );
-                                $found = true;
-                       }
-               }
-
-               # LOCALURL and FULLURL
-               if ( !$found ) {
-                       $mwLocal =& MagicWord::get( MAG_LOCALURL );
-                       $mwLocalE =& MagicWord::get( MAG_LOCALURLE );
-                       $mwFull =& MagicWord::get( MAG_FULLURL );
-                       $mwFullE =& MagicWord::get( MAG_FULLURLE );
-
-
-                       if ( $mwLocal->matchStartAndRemove( $part1 ) ) {
-                               $func = 'getLocalURL';
-                       } elseif ( $mwLocalE->matchStartAndRemove( $part1 ) ) {
-                               $func = 'escapeLocalURL';
-                       } elseif ( $mwFull->matchStartAndRemove( $part1 ) ) {
-                               $func = 'getFullURL';
-                       } elseif ( $mwFullE->matchStartAndRemove( $part1 ) ) {
-                               $func = 'escapeFullURL';
-                       } else {
-                               $func = false;
-                       }
-
-                       if ( $func !== false ) {
-                               $title = Title::newFromText( $part1 );
-                               # Due to order of execution of a lot of bits, the values might be encoded
-                               # before arriving here; if that's true, then the title can't be created
-                               # and the variable will fail. If we can't get a decent title from the first
-                               # attempt, url-decode and try for a second.
-                               if( is_null( $title ) )
-                                       $title = Title::newFromUrl( urldecode( $part1 ) );
-                               if ( !is_null( $title ) ) {
-                                       if ( $argc > 0 ) {
-                                               $text = $linestart . $title->$func( $args[0] );
+                                       # Case insensitive functions
+                                       $function = strtolower( $function );
+                                       if ( isset( $this->mFunctionSynonyms[0][$function] ) ) {
+                                               $function = $this->mFunctionSynonyms[0][$function];
                                        } else {
-                                               $text = $linestart . $title->$func();
+                                               $function = false;
                                        }
-                                       $found = true;
                                }
-                       }
-               }
-
-               $lang = $this->mOptions->getInterfaceMessage() ? $wgLang : $wgContLang;
-               # GRAMMAR
-               if ( !$found && $argc == 1 ) {
-                       $mwGrammar =& MagicWord::get( MAG_GRAMMAR );
-                       if ( $mwGrammar->matchStartAndRemove( $part1 ) ) {
-                               $text = $linestart . $lang->convertGrammar( $args[0], $part1 );
-                               $found = true;
-                       }
-               }
-
-               # PLURAL
-               if ( !$found && $argc >= 2 ) {
-                       $mwPluralForm =& MagicWord::get( MAG_PLURAL );
-                       if ( $mwPluralForm->matchStartAndRemove( $part1 ) ) {
-                               while ( count($args) < 5 ) { $args[] = $args[count($args)-1]; }
-                               $text = $linestart . $lang->convertPlural( $part1, $args[0], $args[1],
-                                       $args[2], $args[3], $args[4]);
-                               $found = true;
-                       }
-               }
-               
-               # DISPLAYTITLE
-               if ( !$found && $argc == 1 && $wgAllowDisplayTitle ) {
-                       $mwDT =& MagicWord::get( MAG_DISPLAYTITLE );
-                       if ( $mwDT->matchStartAndRemove( $part1 ) ) {
-                               
-                               # Set title in parser output object
-                               $param = $args[0];
-                               $parserOptions = new ParserOptions;
-                               $local_parser = new Parser ();
-                               $t2 = $local_parser->parse ( $param, $this->mTitle, $parserOptions, false );
-                               $this->mOutput->mHTMLtitle = $t2->GetText();
-
-                               # Add subtitle
-                               $t = $this->mTitle->getPrefixedText();
-                               $this->mOutput->mSubtitle .= wfMsg('displaytitle', $t);
-                               $text = "" ;
-                               $found = true ;
-                       }
-               }               
-
-               # NUMBEROFPAGES, NUMBEROFUSERS, NUMBEROFARTICLES, and NUMBEROFFILES
-               if( !$found ) {
-                       $mwWordsToCheck = array( MAG_NUMBEROFPAGES => 'wfNumberOfPages',
-                                                                        MAG_NUMBEROFUSERS => 'wfNumberOfUsers',
-                                                                        MAG_NUMBEROFARTICLES => 'wfNumberOfArticles',
-                                                                        MAG_NUMBEROFFILES => 'wfNumberOfFiles' );
-                       foreach( $mwWordsToCheck as $word => $func ) {
-                               $mwCurrentWord =& MagicWord::get( $word );
-                               if( $mwCurrentWord->matchStartAndRemove( $part1 ) ) {
-                                       $mwRawSuffix =& MagicWord::get( MAG_RAWSUFFIX );
-                                       if( $mwRawSuffix->match( $args[0] ) ) {
-                                               # Raw and unformatted
-                                               $text = $linestart . call_user_func( $func );
-                                       } else {
-                                               # Formatted according to the content default
-                                               $text = $linestart . $wgContLang->formatNum( call_user_func( $func ) );
-                                       }
-                                       $found = true;
-                               }
-                       }
-               }
-               
-               # PAGESINNAMESPACE
-               if( !$found ) {
-                       $mwPagesInNs =& MagicWord::get( MAG_PAGESINNAMESPACE );
-                       if( $mwPagesInNs->matchStartAndRemove( $part1 ) ) {
-                               $found = true;
-                               $count = wfPagesInNs( intval( $part1 ) );
-                               $mwRawSuffix =& MagicWord::get( MAG_RAWSUFFIX );
-                               if( isset( $args[0] ) && $mwRawSuffix->match( $args[0] ) ) {
-                                       $text = $linestart . $count;
-                               } else {
-                                       $text = $linestart . $wgContLang->formatNum( $count );
-                               }
-                       }
-               }
-
-               # #LANGUAGE:
-               if( !$found ) {
-                       $mwLanguage =& MagicWord::get( MAG_LANGUAGE );
-                       if( $mwLanguage->matchStartAndRemove( $part1 ) ) {
-                               $lang = $wgContLang->getLanguageName( strtolower( $part1 ) );
-                               $text = $linestart . ( $lang != '' ? $lang : $part1 );
-                               $found = true;
-                       }               
-               }
-
-               # Extensions
-               if ( !$found && substr( $part1, 0, 1 ) == '#' ) {
-                       $colonPos = strpos( $part1, ':' );
-                       if ( $colonPos !== false ) {
-                               $function = strtolower( substr( $part1, 1, $colonPos - 1 ) );
-                               if ( isset( $this->mFunctionHooks[$function] ) ) {
+                               if ( $function ) {
                                        $funcArgs = array_map( 'trim', $args );
                                        $funcArgs = array_merge( array( &$this, trim( substr( $part1, $colonPos + 1 ) ) ), $funcArgs );
                                        $result = call_user_func_array( $this->mFunctionHooks[$function], $funcArgs );
@@ -2835,10 +2743,12 @@ class Parser
                                        // The text is usually already parsed, doesn't need triple-brace tags expanded, etc.
                                        //$noargs = true;
                                        //$noparse = true;
-                                       
+
                                        if ( is_array( $result ) ) {
-                                               $text = $linestart . $result[0];
-                                               unset( $result[0] );
+                                               if ( isset( $result[0] ) ) {
+                                                       $text = $linestart . $result[0];
+                                                       unset( $result[0] );
+                                               }
 
                                                // Extract flags into the local scope
                                                // This allows callers to set flags such as nowiki, noparse, found, etc.
@@ -2848,6 +2758,7 @@ class Parser
                                        }
                                }
                        }
+                       wfProfileOut( __METHOD__ . '-pfunc' );
                }
 
                # Template table test
@@ -2875,6 +2786,7 @@ class Parser
                # Load from database
                $lastPathLevel = $this->mTemplatePath;
                if ( !$found ) {
+                       wfProfileIn( __METHOD__ . '-loadtpl' );
                        $ns = NS_TEMPLATE;
                        # declaring $subpage directly in the function call
                        # does not work correctly with references and breaks
@@ -2886,7 +2798,14 @@ class Parser
                        }
                        $title = Title::newFromText( $part1, $ns );
 
+
                        if ( !is_null( $title ) ) {
+                               $checkVariantLink = sizeof($wgContLang->getVariants())>1;
+                               # Check for language variants if the template is not found
+                               if($checkVariantLink && $title->getArticleID() == 0){
+                                       $wgContLang->findVariantLink($part1, $title);
+                               }
+
                                if ( !$title->isExternal() ) {
                                        # Check for excessive inclusion
                                        $dbk = $title->getPrefixedDBkey();
@@ -2927,7 +2846,7 @@ class Parser
                                        }
                                        $found = true;
                                }
-                               
+
                                # Template cache array insertion
                                # Use the original $piece['title'] not the mangled $part1, so that
                                # modifiers such as RAW: produce separate cache entries
@@ -2940,6 +2859,7 @@ class Parser
                                        $text = $linestart . $text;
                                }
                        }
+                       wfProfileOut( __METHOD__ . '-loadtpl' );
                }
 
                # Recursive parsing, escaping and link table handling
@@ -3011,6 +2931,7 @@ class Parser
                        wfProfileOut( $fname );
                        return $piece['text'];
                } else {
+                       wfProfileIn( __METHOD__ . '-placeholders' );
                        if ( $isHTML ) {
                                # Replace raw HTML by a placeholder
                                # Add a blank line preceding, to prevent it from mucking up
@@ -3044,6 +2965,7 @@ class Parser
                                        }
                                }
                        }
+                       wfProfileOut( __METHOD__ . '-placeholders' );
                }
 
                # Prune lower levels off the recursion check path
@@ -3118,7 +3040,7 @@ class Parser
                        }
                }
 
-               $text = wfGetHTTP($url);
+               $text = Http::get($url);
                if (!$text)
                        return wfMsg('scarytranscludefailed', $url);
 
@@ -3164,25 +3086,35 @@ class Parser
                }
        }
 
+       /**
+        * Detect __NOGALLERY__ magic word and set a placeholder
+        */
+       function stripNoGallery( &$text ) {
+               # if the string __NOGALLERY__ (not case-sensitive) occurs in the HTML,
+               # do not add TOC
+               $mw = MagicWord::get( 'nogallery' );
+               $this->mOutput->mNoGallery = $mw->matchAndRemove( $text ) ;
+       }
+
        /**
         * Detect __TOC__ magic word and set a placeholder
         */
        function stripToc( $text ) {
                # if the string __NOTOC__ (not case-sensitive) occurs in the HTML,
                # do not add TOC
-               $mw = MagicWord::get( MAG_NOTOC );
+               $mw = MagicWord::get( 'notoc' );
                if( $mw->matchAndRemove( $text ) ) {
                        $this->mShowToc = false;
                }
-               
-               $mw = MagicWord::get( MAG_TOC );
+
+               $mw = MagicWord::get( 'toc' );
                if( $mw->match( $text ) ) {
                        $this->mShowToc = true;
                        $this->mForceTocPosition = true;
-                       
+
                        // Set a placeholder. At the end we'll fill it in with the TOC.
                        $text = $mw->replace( '<!--MWTOC-->', $text, 1 );
-                       
+
                        // Only keep the first one.
                        $text = $mw->replace( '', $text );
                }
@@ -3214,7 +3146,7 @@ class Parser
                }
 
                # Inhibit editsection links if requested in the page
-               $esw =& MagicWord::get( MAG_NOEDITSECTION );
+               $esw =& MagicWord::get( 'noeditsection' );
                if( $esw->matchAndRemove( $text ) ) {
                        $showEditLink = 0;
                }
@@ -3230,13 +3162,13 @@ class Parser
 
                # Allow user to stipulate that a page should have a "new section"
                # link added via __NEWSECTIONLINK__
-               $mw =& MagicWord::get( MAG_NEWSECTIONLINK );
+               $mw =& MagicWord::get( 'newsectionlink' );
                if( $mw->matchAndRemove( $text ) )
                        $this->mOutput->setNewSection( true );
 
                # if the string __FORCETOC__ (not case-sensitive) occurs in the HTML,
                # override above conditions and always show TOC above first header
-               $mw =& MagicWord::get( MAG_FORCETOC );
+               $mw =& MagicWord::get( 'forcetoc' );
                if ($mw->matchAndRemove( $text ) ) {
                        $this->mShowToc = true;
                        $enoughToc = true;
@@ -3467,7 +3399,7 @@ class Parser
                        }
 
                        $isbn = $blank = '' ;
-                       while ( ' ' == $x{0} ) {
+                       while ( $x !== '' && ' ' == $x{0} ) {
                                $blank .= ' ';
                                $x = substr( $x, 1 );
                        }
@@ -3538,7 +3470,7 @@ class Parser
                                $text .= $keyword . $x;
                                continue;
                        }
-                       
+
                        $id = $blank = '' ;
 
                        /** remove and save whitespaces in $blank */
@@ -3599,7 +3531,7 @@ class Parser
                        "\r\n" => "\n",
                );
                $text = str_replace( array_keys( $pairs ), array_values( $pairs ), $text );
-               $text = $this->strip( $text, $stripState, true );
+               $text = $this->strip( $text, $stripState, true, array( 'gallery' ) );
                $text = $this->pstPass2( $text, $stripState, $user );
                $text = $this->unstrip( $text, $stripState );
                $text = $this->unstripNoWiki( $text, $stripState );
@@ -3631,10 +3563,10 @@ class Parser
                # Variable replacement
                # Because mOutputType is OT_WIKI, this will only process {{subst:xxx}} type tags
                $text = $this->replaceVariables( $text );
-               
+
                # Strip out <nowiki> etc. added via replaceVariables
-               $text = $this->strip( $text, $stripState );
-       
+               $text = $this->strip( $text, $stripState, false, array( 'gallery' ) );
+
                # Signatures
                $sigText = $this->getUserSig( $user );
                $text = strtr( $text, array(
@@ -3647,35 +3579,28 @@ class Parser
                #
                global $wgLegalTitleChars;
                $tc = "[$wgLegalTitleChars]";
-               $np = str_replace( array( '(', ')' ), array( '', '' ), $tc ); # No parens
 
                $namespacechar = '[ _0-9A-Za-z\x80-\xff]'; # Namespaces can use non-ascii!
-               $conpat = "/^({$np}+) \\(({$tc}+)\\)$/";
+               $conpat = "/^{$tc}+?( \\({$tc}+\\)|)$/";
 
-               $p1 = "/\[\[({$np}+) \\(({$np}+)\\)\\|]]/";             # [[page (context)|]]
-               $p2 = "/\[\[\\|({$tc}+)]]/";                                    # [[|page]]
-               $p3 = "/\[\[(:*$namespacechar+):({$np}+)\\|]]/";                # [[namespace:page|]] and [[:namespace:page|]]
-               $p4 = "/\[\[(:*$namespacechar+):({$np}+) \\(({$np}+)\\)\\|]]/"; # [[ns:page (cont)|]] and [[:ns:page (cont)|]]
-               $context = '';
-               $t = $this->mTitle->getText();
-               if ( preg_match( $conpat, $t, $m ) ) {
-                       $context = $m[2];
-               }
-               $text = preg_replace( $p4, '[[\\1:\\2 (\\3)|\\2]]', $text );
-               $text = preg_replace( $p1, '[[\\1 (\\2)|\\1]]', $text );
-               $text = preg_replace( $p3, '[[\\1:\\2|\\2]]', $text );
+               $p1 = "/\[\[(:?$namespacechar+:|:|)({$tc}+?)( \\({$tc}+\\)|)\\|]]/";    # [[ns:page (context)|]]
+               $p2 = "/\[\[\\|({$tc}+)]]/";                                            # [[|page]]
 
-               if ( '' == $context ) {
-                       $text = preg_replace( $p2, '[[\\1]]', $text );
+               $text = preg_replace( $p1, '[[\\1\\2\\3|\\2]]', $text );
+
+               $t = $this->mTitle->getText();
+               if ( preg_match( $conpat, $t, $m ) && '' != $m[1] ) {
+                       $text = preg_replace( $p2, "[[\\1{$m[1]}|\\1]]", $text );
                } else {
-                       $text = preg_replace( $p2, "[[\\1 ({$context})|\\1]]", $text );
+                       # if $m[1] is empty, don't bother duplicating the title
+                       $text = preg_replace( $p2, '[[\\1]]', $text );
                }
 
                # Trim trailing whitespace
-               # MAG_END (__END__) tag allows for trailing
+               # __END__ tag allows for trailing
                # whitespace to be deliberately included
                $text = rtrim( $text );
-               $mw =& MagicWord::get( MAG_END );
+               $mw =& MagicWord::get( 'end' );
                $mw->matchAndRemove( $text );
 
                return $text;
@@ -3693,7 +3618,7 @@ class Parser
                $username = $user->getName();
                $nickname = $user->getOption( 'nickname' );
                $nickname = $nickname === '' ? $username : $nickname;
-       
+
                if( $user->getBoolOption( 'fancysig' ) !== false ) {
                        # Sig. might contain markup; validate this
                        if( $this->validateSig( $nickname ) !== false ) {
@@ -3706,6 +3631,9 @@ class Parser
                        }
                }
 
+               // Make sure nickname doesnt get a sig in a sig
+               $nickname = $this->cleanSigInSig( $nickname );
+
                # If we're still here, make it a link to the user page
                $userpage = $user->getUserPage();
                return( '[[' . $userpage->getPrefixedText() . '|' . wfEscapeWikiText( $nickname ) . ']]' );
@@ -3720,11 +3648,11 @@ class Parser
        function validateSig( $text ) {
                return( wfIsWellFormedXmlFragment( $text ) ? $text : false );
        }
-       
+
        /**
         * Clean up signature text
         *
-        * 1) Strip ~~~, ~~~~ and ~~~~~ out of signatures
+        * 1) Strip ~~~, ~~~~ and ~~~~~ out of signatures @see cleanSigInSig
         * 2) Substitute all transclusions
         *
         * @param string $text
@@ -3734,19 +3662,29 @@ class Parser
        function cleanSig( $text, $parsing = false ) {
                global $wgTitle;
                $this->startExternalParse( $wgTitle, new ParserOptions(), $parsing ? OT_WIKI : OT_MSG );
-       
-               $substWord = MagicWord::get( MAG_SUBST );
+
+               $substWord = MagicWord::get( 'subst' );
                $substRegex = '/\{\{(?!(?:' . $substWord->getBaseRegex() . '))/x' . $substWord->getRegexCase();
                $substText = '{{' . $substWord->getSynonym( 0 );
 
                $text = preg_replace( $substRegex, $substText, $text );
-               $text = preg_replace( '/~{3,5}/', '', $text );
+               $text = $this->cleanSigInSig( $text );
                $text = $this->replaceVariables( $text );
-               
-               $this->clearState();    
+
+               $this->clearState();
                return $text;
        }
-       
+
+       /**
+        * Strip ~~~, ~~~~ and ~~~~~ out of signatures
+        * @param string $text
+        * @return string Signature text with /~{3,5}/ removed
+        */
+       function cleanSigInSig( $text ) {
+               $text = preg_replace( '/~{3,5}/', '', $text );
+               return $text;
+       }
+
        /**
         * Set up some variables which are usually set up in parse()
         * so that an external function can call some class members with confidence
@@ -3834,15 +3772,42 @@ class Parser
         *
         * @public
         *
-        * @param string $name The function name. Function names are case-insensitive.
+        * @param string $id The magic word ID
         * @param mixed $callback The callback function (and object) to use
+        * @param integer $flags a combination of the following flags: 
+        *                SFH_NO_HASH No leading hash, i.e. {{plural:...}} instead of {{#if:...}}
         *
         * @return The old callback function for this name, if any
         */
-       function setFunctionHook( $name, $callback ) {
-               $name = strtolower( $name );
-               $oldVal = @$this->mFunctionHooks[$name];
-               $this->mFunctionHooks[$name] = $callback;
+       function setFunctionHook( $id, $callback, $flags = 0 ) {
+               $oldVal = @$this->mFunctionHooks[$id];
+               $this->mFunctionHooks[$id] = $callback;
+
+               # Add to function cache
+               $mw = MagicWord::get( $id );
+               if ( !$mw ) {
+                       throw new MWException( 'The calling convention to Parser::setFunctionHook() has changed, ' .
+                               'it is now required to pass a MagicWord ID as the first parameter.' );
+               }
+
+               $synonyms = $mw->getSynonyms();
+               $sensitive = intval( $mw->isCaseSensitive() );
+
+               foreach ( $synonyms as $syn ) {
+                       # Case
+                       if ( !$sensitive ) {
+                               $syn = strtolower( $syn );
+                       }
+                       # Add leading hash
+                       if ( !( $flags & SFH_NO_HASH ) ) {
+                               $syn = '#' . $syn;
+                       }
+                       # Remove trailing colon
+                       if ( substr( $syn, -1, 1 ) == ':' ) {
+                               $syn = substr( $syn, 0, -1 );
+                       }
+                       $this->mFunctionSynonyms[$sensitive][$syn] = $id;
+               }
                return $oldVal;
        }
 
@@ -4052,13 +4017,13 @@ class Parser
        function renderPreTag( $text, $attribs, $parser ) {
                // Backwards-compatibility hack
                $content = preg_replace( '!<nowiki>(.*?)</nowiki>!is', '\\1', $text );
-               
+
                $attribs = Sanitizer::validateTagAttributes( $attribs, 'pre' );
                return wfOpenElement( 'pre', $attribs ) .
                        wfEscapeHTMLTagsOnly( $content ) .
                        '</pre>';
        }
-       
+
        /**
         * Renders an image gallery from a text with one line per image.
         * text labels may be given by using |-style alternative text. E.g.
@@ -4068,13 +4033,17 @@ class Parser
         * labeled 'The number "1"' and
         * 'A tree'.
         */
-       function renderImageGallery( $text ) {
+       function renderImageGallery( $text, $params ) {
                $ig = new ImageGallery();
                $ig->setShowBytes( false );
                $ig->setShowFilename( false );
                $ig->setParsing();
-               $lines = explode( "\n", $text );
+               $ig->useSkin( $this->mOptions->getSkin() );
 
+               if( isset( $params['caption'] ) )
+                       $ig->setCaption( $params['caption'] );
+
+               $lines = explode( "\n", $text );
                foreach ( $lines as $line ) {
                        # match lines like these:
                        # Image:someimage.jpg|This is some image
@@ -4083,7 +4052,8 @@ class Parser
                        if ( count( $matches ) == 0 ) {
                                continue;
                        }
-                       $nt =& Title::newFromText( $matches[1] );
+                       $tp = Title::newFromText( $matches[1] );
+                       $nt =& $tp;
                        if( is_null( $nt ) ) {
                                # Bogus title. Ignore these so we don't bomb out later.
                                continue;
@@ -4132,14 +4102,14 @@ class Parser
 
                $part = explode( '|', $options);
 
-               $mwThumb  =& MagicWord::get( MAG_IMG_THUMBNAIL );
-               $mwManualThumb =& MagicWord::get( MAG_IMG_MANUALTHUMB );
-               $mwLeft   =& MagicWord::get( MAG_IMG_LEFT );
-               $mwRight  =& MagicWord::get( MAG_IMG_RIGHT );
-               $mwNone   =& MagicWord::get( MAG_IMG_NONE );
-               $mwWidth  =& MagicWord::get( MAG_IMG_WIDTH );
-               $mwCenter =& MagicWord::get( MAG_IMG_CENTER );
-               $mwFramed =& MagicWord::get( MAG_IMG_FRAMED );
+               $mwThumb  =& MagicWord::get( 'img_thumbnail' );
+               $mwManualThumb =& MagicWord::get( 'img_manualthumb' );
+               $mwLeft   =& MagicWord::get( 'img_left' );
+               $mwRight  =& MagicWord::get( 'img_right' );
+               $mwNone   =& MagicWord::get( 'img_none' );
+               $mwWidth  =& MagicWord::get( 'img_width' );
+               $mwCenter =& MagicWord::get( 'img_center' );
+               $mwFramed =& MagicWord::get( 'img_framed' );
                $caption = '';
 
                $width = $height = $framed = $thumb = false;
@@ -4165,7 +4135,7 @@ class Parser
                                # remember to set an alignment, don't render immediately
                                $align = 'none';
                        } elseif ( $wgUseImageResize && ! is_null( $match = $mwWidth->matchVariableStartToEnd($val) ) ) {
-                               wfDebug( "MAG_IMG_WIDTH match: $match\n" );
+                               wfDebug( "img_width match: $match\n" );
                                # $match is the image width in pixels
                                if ( preg_match( '/^([0-9]*)x([0-9]*)$/', $match, $m ) ) {
                                        $width = intval( $m[1] );
@@ -4257,14 +4227,14 @@ class Parser
                # strip NOWIKI etc. to avoid confusion (true-parameter causes HTML
                # comments to be stripped as well)
                $striparray = array();
-               
+
                $oldOutputType = $this->mOutputType;
                $oldOptions = $this->mOptions;
                $this->mOptions = new ParserOptions();
                $this->mOutputType = OT_WIKI;
-               
+
                $striptext = $this->strip( $text, $striparray, true );
-               
+
                $this->mOutputType = $oldOutputType;
                $this->mOptions = $oldOptions;
 
@@ -4298,7 +4268,7 @@ class Parser
                                (=+) # Should this be limited to 6?
                                .+?  # Section title...
                                \\2  # Ending = count must match start
-                               (?:$comment|<\/?noinclude>|\s+)* # Trailing whitespace ok
+                               (?:$comment|<\/?noinclude>|[ \\t]+)* # Trailing whitespace ok
                                $
                        |
                                <h([1-6])\b.*?>
@@ -4308,7 +4278,7 @@ class Parser
                        /mix",
                        $striptext, -1,
                        PREG_SPLIT_DELIM_CAPTURE);
-               
+
                if( $mode == "get" ) {
                        if( $section == 0 ) {
                                // "Section 0" returns the content before any other section.
@@ -4375,7 +4345,7 @@ class Parser
                $rv = trim( $rv );
                return $rv;
        }
-       
+
        /**
         * This function returns the text of a section, specified by a number ($section).
         * A section is text under a heading like == Heading == or \<h1\>Heading\</h1\>, or
@@ -4390,7 +4360,7 @@ class Parser
        function getSection( $text, $section ) {
                return $this->extractSections( $text, $section, "get" );
        }
-       
+
        function replaceSection( $oldtext, $section, $text ) {
                return $this->extractSections( $oldtext, $section, "replace", $text );
        }
@@ -4416,7 +4386,8 @@ class ParserOutput
                $mExternalLinks,    # External link URLs, in the key only
                $mHTMLtitle,            # Display HTML title
                $mSubtitle,                     # Additional subtitle
-               $mNewSection;           # Show a new section link?
+               $mNewSection,           # Show a new section link?
+               $mNoGallery;            # No gallery on category page? (__NOGALLERY__)
 
        function ParserOutput( $text = '', $languageLinks = array(), $categoryLinks = array(),
                $containsOldMagic = false, $titletext = '' )
@@ -4435,6 +4406,7 @@ class ParserOutput
                $this->mHTMLtitle = "" ;
                $this->mSubtitle = "" ;
                $this->mNewSection = false;
+               $this->mNoGallery = false;
        }
 
        function getText()                   { return $this->mText; }
@@ -4447,6 +4419,8 @@ class ParserOutput
        function &getTemplates()             { return $this->mTemplates; }
        function &getImages()                { return $this->mImages; }
        function &getExternalLinks()         { return $this->mExternalLinks; }
+       function getNoGallery()              { return $this->mNoGallery; }
+       function getSubtitle()               { return $this->mSubtitle; }
 
        function containsOldMagic()          { return $this->mContainsOldMagic; }
        function setText( $text )            { return wfSetVar( $this->mText, $text ); }
@@ -4454,7 +4428,8 @@ class ParserOutput
        function setCategoryLinks( $cl )     { return wfSetVar( $this->mCategories, $cl ); }
        function setContainsOldMagic( $com ) { return wfSetVar( $this->mContainsOldMagic, $com ); }
        function setCacheTime( $t )          { return wfSetVar( $this->mCacheTime, $t ); }
-       function setTitleText( $t )          { return wfSetVar ($this->mTitleText, $t); }
+       function setTitleText( $t )          { return wfSetVar($this->mTitleText, $t); }
+       function setSubtitle( $st )          { return wfSetVar( $this->mSubtitle, $st ); }
 
        function addCategory( $c, $sort )    { $this->mCategories[$c] = $sort; }
        function addImage( $name )           { $this->mImages[$name] = 1; }
@@ -4526,19 +4501,33 @@ class ParserOptions
        var $mTidy;                      # Ask for tidy cleanup
        var $mInterfaceMessage;          # Which lang to call for PLURAL and GRAMMAR
 
+       var $mUser;                      # Stored user object, just used to initialise the skin
+
        function getUseTeX()                        { return $this->mUseTeX; }
        function getUseDynamicDates()               { return $this->mUseDynamicDates; }
        function getInterwikiMagic()                { return $this->mInterwikiMagic; }
        function getAllowExternalImages()           { return $this->mAllowExternalImages; }
        function getAllowExternalImagesFrom()       { return $this->mAllowExternalImagesFrom; }
-       function &getSkin()                         { return $this->mSkin; }
-       function getDateFormat()                    { return $this->mDateFormat; }
        function getEditSection()                   { return $this->mEditSection; }
        function getNumberHeadings()                { return $this->mNumberHeadings; }
        function getAllowSpecialInclusion()         { return $this->mAllowSpecialInclusion; }
        function getTidy()                          { return $this->mTidy; }
        function getInterfaceMessage()              { return $this->mInterfaceMessage; }
 
+       function &getSkin() {
+               if ( !isset( $this->mSkin ) ) {
+                       $this->mSkin = $this->mUser->getSkin();
+               }
+               return $this->mSkin;
+       }
+
+       function getDateFormat() { 
+               if ( !isset( $this->mDateFormat ) ) {
+                       $this->mDateFormat = $this->mUser->getDatePreference();
+               }
+               return $this->mDateFormat;
+       }
+
        function setUseTeX( $x )                    { return wfSetVar( $this->mUseTeX, $x ); }
        function setUseDynamicDates( $x )           { return wfSetVar( $this->mUseDynamicDates, $x ); }
        function setInterwikiMagic( $x )            { return wfSetVar( $this->mInterwikiMagic, $x ); }
@@ -4552,43 +4541,45 @@ class ParserOptions
        function setSkin( &$x ) { $this->mSkin =& $x; }
        function setInterfaceMessage( $x )          { return wfSetVar( $this->mInterfaceMessage, $x); }
 
-       function ParserOptions() {
-               global $wgUser;
-               $this->initialiseFromUser( $wgUser );
+       function ParserOptions( $user = null ) {
+               $this->initialiseFromUser( $user );
        }
 
        /**
         * Get parser options
         * @static
         */
-       function newFromUser( &$user ) {
-               $popts = new ParserOptions;
-               $popts->initialiseFromUser( $user );
-               return $popts;
+       static function newFromUser( $user ) {
+               return new ParserOptions( $user );
        }
 
        /** Get user options */
-       function initialiseFromUser( &$userInput ) {
+       function initialiseFromUser( $userInput ) {
                global $wgUseTeX, $wgUseDynamicDates, $wgInterwikiMagic, $wgAllowExternalImages;
                global $wgAllowExternalImagesFrom, $wgAllowSpecialInclusion;
                $fname = 'ParserOptions::initialiseFromUser';
                wfProfileIn( $fname );
                if ( !$userInput ) {
-                       $user = new User;
-                       $user->setLoaded( true );
+                       global $wgUser;
+                       if ( isset( $wgUser ) ) {
+                               $user = $wgUser;
+                       } else {
+                               $user = new User;
+                               $user->setLoaded( true );
+                       }
                } else {
                        $user =& $userInput;
                }
 
+               $this->mUser = $user;
+
                $this->mUseTeX = $wgUseTeX;
                $this->mUseDynamicDates = $wgUseDynamicDates;
                $this->mInterwikiMagic = $wgInterwikiMagic;
                $this->mAllowExternalImages = $wgAllowExternalImages;
                $this->mAllowExternalImagesFrom = $wgAllowExternalImagesFrom;
-               wfProfileIn( $fname.'-skin' );
-               $this->mSkin =& $user->getSkin();
-               wfProfileOut( $fname.'-skin' );
-               $this->mDateFormat = $user->getOption( 'date' );
+               $this->mSkin = null; # Deferred
+               $this->mDateFormat = null; # Deferred
                $this->mEditSection = true;
                $this->mNumberHeadings = $user->getOption( 'numberheadings' );
                $this->mAllowSpecialInclusion = $wgAllowSpecialInclusion;
@@ -4655,6 +4646,22 @@ function wfNumberOfPages() {
        return (int)$count;
 }
 
+/**
+ * Return the total number of admins
+ *
+ * @return integer
+ */
+function wfNumberOfAdmins() {
+       static $admins = -1;
+       wfProfileIn( 'wfNumberOfAdmins' );
+       if( $admins == -1 ) {
+               $dbr =& wfGetDB( DB_SLAVE );
+               $admins = $dbr->selectField( 'user_groups', 'COUNT(*)', array( 'ug_group' => 'sysop' ), 'wfNumberOfAdmins' );
+       }
+       wfProfileOut( 'wfNumberOfAdmins' );
+       return (int)$admins;
+}
+
 /**
  * Count the number of pages in a particular namespace
  *