In QueryPage: fixing a misleading comment. value needn't be numeric.
[lhc/web/wiklou.git] / includes / Parser.php
index d5bbc15..3c539f0 100644 (file)
@@ -2,13 +2,6 @@
 
 // require_once('Tokenizer.php');
 
-if( $GLOBALS['wgUseWikiHiero'] ){
-       require_once('extensions/wikihiero/wikihiero.php');
-}
-if( $GLOBALS['wgUseTimeline'] ){
-       require_once('extensions/timeline/Timeline.php');
-}
-
 # PHP Parser
 #
 # Processes wiki markup
@@ -38,6 +31,7 @@ if( $GLOBALS['wgUseTimeline'] ){
 #
 
 define( "MAX_INCLUDE_REPEAT", 5 );
+define( "MAX_INCLUDE_SIZE", 1000000 ); // 1 Million
 
 # Allowed values for $mOutputType
 define( "OT_HTML", 1 );
@@ -48,27 +42,54 @@ define( "OT_MSG", 3 );
 # to strip HTML comments in addition to regular
 # <XML>-style tags. This should not be anything we
 # may want to use in wikisyntax
-define( "STRIP_COMMENTS", "HTMLCommentStrip" );
+define( 'STRIP_COMMENTS', 'HTMLCommentStrip' );
 
 # prefix for escaping, used in two functions at least
-define( "UNIQ_PREFIX", "NaodW29");
+define( 'UNIQ_PREFIX', 'NaodW29');
+
+
+# Constants needed for external link processing
+
+define( 'URL_PROTOCOLS', 'http|https|ftp|irc|gopher|news|mailto' );
+define( 'HTTP_PROTOCOLS', 'http|https' );
+# Everything except bracket, space, or control characters
+define( 'EXT_LINK_URL_CLASS', '[^]\\x00-\\x20\\x7F]' );
+define( 'INVERSE_EXT_LINK_URL_CLASS', '[\]\\x00-\\x20\\x7F]' );
+# Including space
+define( 'EXT_LINK_TEXT_CLASS', '[^\]\\x00-\\x1F\\x7F]' );
+define( 'EXT_IMAGE_FNAME_CLASS', '[A-Za-z0-9_.,~%\\-+&;#*?!=()@\\x80-\\xFF]' );
+define( 'EXT_IMAGE_EXTENSIONS', 'gif|png|jpg|jpeg' );
+define( 'EXT_LINK_BRACKETED',  '/\[(('.URL_PROTOCOLS.'):'.EXT_LINK_URL_CLASS.'+) *('.EXT_LINK_TEXT_CLASS.'*?)\]/S' ); 
+define( 'EXT_IMAGE_REGEX', 
+       '/^('.HTTP_PROTOCOLS.':)'.  # Protocol
+       '('.EXT_LINK_URL_CLASS.'+)\\/'.  # Hostname and path
+       '('.EXT_IMAGE_FNAME_CLASS.'+)\\.((?i)'.EXT_IMAGE_EXTENSIONS.')$/S' # Filename
+);
 
 class Parser
 {
+       # Persistent:
+       var $mTagHooks;
+
        # Cleared with clearState():
        var $mOutput, $mAutonumber, $mDTopen, $mStripState = array();
        var $mVariables, $mIncludeCount, $mArgStack, $mLastSection, $mInPre;
 
        # Temporary:
-       var $mOptions, $mTitle, $mOutputType;
-
-       function Parser()
-       {
+       var $mOptions, $mTitle, $mOutputType,
+           $mTemplates,        // cache of already loaded templates, avoids
+                               // multiple SQL queries for the same string
+           $mTemplatePath;     // stores an unsorted hash of all the templates already loaded
+                               // in this path. Used for loop detection.
+
+       function Parser() {
+               $this->mTemplates = array();
+               $this->mTemplatePath = array();
+               $this->mTagHooks = array();
                $this->clearState();
        }
 
-       function clearState()
-       {
+       function clearState() {
                $this->mOutput = new ParserOutput;
                $this->mAutonumber = 0;
                $this->mLastSection = "";
@@ -77,6 +98,7 @@ class Parser
                $this->mIncludeCount = array();
                $this->mStripState = array();
                $this->mArgStack = array();
+               $this->mInPre = false;
        }
 
        # First pass--just handle <nowiki> sections, pass the rest off
@@ -84,8 +106,7 @@ class Parser
        #
        # Returns a ParserOutput
        #
-       function parse( $text, &$title, $options, $linestart = true, $clearState = true )
-       {
+       function parse( $text, &$title, $options, $linestart = true, $clearState = true ) {
                global $wgUseTidy;
                $fname = "Parser::parse";
                wfProfileIn( $fname );
@@ -106,13 +127,14 @@ class Parser
                if(!$wgUseTidy) {
                        $fixtags = array(
                                # french spaces, last one Guillemet-left
-                               "/ (\\?|:|!|\\302\\273)/i"=>"&nbsp;\\1", 
+                               # only if there is something before the space
+                               '/(.) (\\?|:|;|!|\\302\\273)/i' => '\\1&nbsp;\\2',
                                # french spaces, Guillemet-right
-                               "/(\\302\\253) /i"=>"\\1&nbsp;", 
-                               "/<hr *>/i" => '<hr/>',
-                               "/<br *>/i" => '<br/>',
-                               "/<center *>/i"=>'<div class="center">',
-                               "/<\\/center *>/i" => '</div>',
+                               "/(\\302\\253) /i"=>"\\1&nbsp;",
+                               '/<hr *>/i' => '<hr />',
+                               '/<br *>/i' => '<br />',
+                               '/<center *>/i' => '<div class="center">',
+                               '/<\\/center *>/i' => '</div>',
                                # Clean up spare ampersands; note that we probably ought to be
                                # more careful about named entities.
                                '/&(?!:amp;|#[Xx][0-9A-fa-f]+;|#[0-9]+;|[a-zA-Z0-9]+;)/' => '&amp;'
@@ -121,16 +143,18 @@ class Parser
                } else {
                        $fixtags = array(
                                # french spaces, last one Guillemet-left
-                               "/ (\\?|:|!|\\302\\273)/i"=>"&nbsp;\\1", 
+                               '/ (\\?|:|!|\\302\\273)/i' => '&nbsp;\\1',
                                # french spaces, Guillemet-right
-                               "/(\\302\\253) /i"=>"\\1&nbsp;", 
-                               "/<center *>/i"=>'<div class="center">',
-                               "/<\\/center *>/i" => '</div>'
+                               '/(\\302\\253) /i' => '\\1&nbsp;',
+                               '/([^> ]+(&#x30(1|3|9);)[^< ]*)/i' => '<span class="diacrit">\\1</span>',
+                               '/<center *>/i' => '<div class="center">',
+                               '/<\\/center *>/i' => '</div>'
                        );
                        $text = preg_replace( array_keys($fixtags), array_values($fixtags), $text );
                }
                # only once and last
                $text = $this->doBlockLevels( $text, $linestart );
+               $text = $this->unstripNoWiki( $text, $this->mStripState );
                if($wgUseTidy) {
                        $text = $this->tidy($text);
                }
@@ -139,8 +163,7 @@ class Parser
                return $this->mOutput;
        }
 
-       /* static */ function getRandomString()
-       {
+       /* static */ function getRandomString() {
                return dechex(mt_rand(0, 0x7fffffff)) . dechex(mt_rand(0, 0x7fffffff));
        }
 
@@ -160,24 +183,24 @@ class Parser
                        $content = array( );
                }
                $n = 1;
-               $stripped = "";
+               $stripped = '';
 
-               while ( "" != $text ) {
+               while ( '' != $text ) {
                        if($tag==STRIP_COMMENTS) {
-                               $p = preg_split( "/<!--/i", $text, 2 );
+                               $p = preg_split( '/<!--/i', $text, 2 );
                        } else {
                                $p = preg_split( "/<\\s*$tag\\s*>/i", $text, 2 );
                        }
                        $stripped .= $p[0];
-                       if ( ( count( $p ) < 2 ) || ( "" == $p[1] ) ) {
-                               $text = "";
+                       if ( ( count( $p ) < 2 ) || ( '' == $p[1] ) ) {
+                               $text = '';
                        } else {
                                if($tag==STRIP_COMMENTS) {
-                                       $q = preg_split( "/-->/i", $p[1], 2 );
+                                       $q = preg_split( '/-->/i', $p[1], 2 );
                                } else {
                                        $q = preg_split( "/<\\/\\s*$tag\\s*>/i", $p[1], 2 );
                                }
-                               $marker = $rnd . sprintf("%08X", $n++);
+                               $marker = $rnd . sprintf('%08X', $n++);
                                $content[$marker] = $q[0];
                                $stripped .= $marker;
                                $text = $q[1];
@@ -195,48 +218,45 @@ 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
-       function strip( $text, &$state, $stripcomments = false )
-       {
+       function strip( $text, &$state, $stripcomments = false ) {
                $render = ($this->mOutputType == OT_HTML);
+               $html_content = array();
                $nowiki_content = array();
-               $hiero_content = array();
-               $timeline_content = array();
                $math_content = array();
                $pre_content = array();
                $comment_content = array();
+               $ext_content = array();
 
                # Replace any instances of the placeholders
                $uniq_prefix = UNIQ_PREFIX;
                #$text = str_replace( $uniq_prefix, wfHtmlEscapeFirst( $uniq_prefix ), $text );
 
-               $text = Parser::extractTags("nowiki", $text, $nowiki_content, $uniq_prefix);
-               foreach( $nowiki_content as $marker => $content ){
-                       if( $render ){
-                               $nowiki_content[$marker] = wfEscapeHTMLTagsOnly( $content );
-                       } else {
-                               $nowiki_content[$marker] = "<nowiki>$content</nowiki>";
+               # html
+               global $wgRawHtml;
+               if( $wgRawHtml ) {
+                       $text = Parser::extractTags('html', $text, $html_content, $uniq_prefix);
+                       foreach( $html_content as $marker => $content ) {
+                               if ($render ) {
+                                       # Raw and unchecked for validity.
+                                       $html_content[$marker] = $content;
+                               } else {
+                                       $html_content[$marker] = "<html>$content</html>";
+                               }
                        }
                }
 
-               $text = Parser::extractTags("hiero", $text, $hiero_content, $uniq_prefix);
-               foreach( $hiero_content as $marker => $content ){
-                       if( $render && $GLOBALS['wgUseWikiHiero']){
-                               $hiero_content[$marker] = WikiHiero( $content, WH_MODE_HTML);
-                       } else {
-                               $hiero_content[$marker] = "<hiero>$content</hiero>";
-                       }
-               }
-               
-               $text = Parser::extractTags("timeline", $text, $timeline_content, $uniq_prefix);
-               foreach( $timeline_content as $marker => $content ){
-                       if( $render && $GLOBALS['wgUseTimeline']){
-                               $timeline_content[$marker] = renderTimeline( $content );
+               # nowiki
+               $text = Parser::extractTags('nowiki', $text, $nowiki_content, $uniq_prefix);
+               foreach( $nowiki_content as $marker => $content ) {
+                       if( $render ){
+                               $nowiki_content[$marker] = wfEscapeHTMLTagsOnly( $content );
                        } else {
-                               $timeline_content[$marker] = "<timeline>$content</timeline>";
+                               $nowiki_content[$marker] = "<nowiki>$content</nowiki>";
                        }
                }
 
-               $text = Parser::extractTags("math", $text, $math_content, $uniq_prefix);
+               # math
+               $text = Parser::extractTags('math', $text, $math_content, $uniq_prefix);
                foreach( $math_content as $marker => $content ){
                        if( $render ) {
                                if( $this->mOptions->getUseTeX() ) {
@@ -249,14 +269,17 @@ class Parser
                        }
                }
 
-               $text = Parser::extractTags("pre", $text, $pre_content, $uniq_prefix);
+               # pre
+               $text = Parser::extractTags('pre', $text, $pre_content, $uniq_prefix);
                foreach( $pre_content as $marker => $content ){
                        if( $render ){
-                               $pre_content[$marker] = "<pre>" . wfEscapeHTMLTagsOnly( $content ) . "</pre>";
+                               $pre_content[$marker] = '<pre>' . wfEscapeHTMLTagsOnly( $content ) . '</pre>';
                        } else {
                                $pre_content[$marker] = "<pre>$content</pre>";
                        }
                }
+
+               # Comments
                if($stripcomments) {
                        $text = Parser::extractTags(STRIP_COMMENTS, $text, $comment_content, $uniq_prefix);
                        foreach( $comment_content as $marker => $content ){
@@ -264,34 +287,69 @@ class Parser
                        }
                }
 
+               # Extensions
+               foreach ( $this->mTagHooks as $tag => $callback ) {
+                       $ext_contents[$tag] = array();
+                       $text = Parser::extractTags( $tag, $text, $ext_content[$tag], $uniq_prefix );
+                       foreach( $ext_content[$tag] as $marker => $content ) {
+                               if ( $render ) {
+                                       $ext_content[$tag][$marker] = $callback( $content );
+                               } else {
+                                       $ext_content[$tag][$marker] = "<$tag>$content</$tag>";
+                               }
+                       }
+               }
+
                # Merge state with the pre-existing state, if there is one
                if ( $state ) {
+                       $state['html'] = $state['html'] + $html_content;
                        $state['nowiki'] = $state['nowiki'] + $nowiki_content;
-                       $state['hiero'] = $state['hiero'] + $hiero_content;
-                       $state['timeline'] = $state['timeline'] + $timeline_content;
                        $state['math'] = $state['math'] + $math_content;
                        $state['pre'] = $state['pre'] + $pre_content;
                        $state['comment'] = $state['comment'] + $comment_content;
+
+                       foreach( $ext_content as $tag => $array ) {
+                               if ( array_key_exists( $tag, $state ) ) {
+                                       $state[$tag] = $state[$tag] + $array;
+                               }
+                       }
                } else {
                        $state = array(
+                         'html' => $html_content,
                          'nowiki' => $nowiki_content,
-                         'hiero' => $hiero_content,
-                         'timeline' => $timeline_content,
                          'math' => $math_content,
                          'pre' => $pre_content,
-                         'comment' => $comment_content
-                       );
+                         'comment' => $comment_content,
+                       ) + $ext_content;
                }
                return $text;
        }
 
-       function unstrip( $text, &$state )
-       {
+       # always call unstripNoWiki() after this one
+       function unstrip( $text, &$state ) {
                # Must expand in reverse order, otherwise nested tags will be corrupted
                $contentDict = end( $state );
                for ( $contentDict = end( $state ); $contentDict !== false; $contentDict = prev( $state ) ) {
-                       for ( $content = end( $contentDict ); $content !== false; $content = prev( $contentDict ) ) {
-                               $text = str_replace( key( $contentDict ), $content, $text );
+                       if( key($state) != 'nowiki' && key($state) != 'html') {
+                               for ( $content = end( $contentDict ); $content !== false; $content = prev( $contentDict ) ) {
+                                       $text = str_replace( key( $contentDict ), $content, $text );
+                               }
+                       }
+               }
+
+               return $text;
+       }
+       # always call this after unstrip() to preserve the order
+       function unstripNoWiki( $text, &$state ) {
+               # Must expand in reverse order, otherwise nested tags will be corrupted
+               for ( $content = end($state['nowiki']); $content !== false; $content = prev( $state['nowiki'] ) ) {
+                       $text = str_replace( key( $state['nowiki'] ), $content, $text );
+               }
+
+               global $wgRawHtml;
+               if ($wgRawHtml) {
+                       for ( $content = end($state['html']); $content !== false; $content = prev( $state['html'] ) ) {
+                               $text = str_replace( key( $state['html'] ), $content, $text );
                        }
                }
 
@@ -302,13 +360,12 @@ class Parser
        # Returns the unique tag which must be inserted into the stripped text
        # The tag will be replaced with the original text in unstrip()
 
-       function insertStripItem( $text, &$state )
-       {
+       function insertStripItem( $text, &$state ) {
                $rnd = UNIQ_PREFIX . '-item' . Parser::getRandomString();
                if ( !$state ) {
                        $state = array(
+                         'html' => array(),
                          'nowiki' => array(),
-                         'hiero' => array(),
                          'math' => array(),
                          'pre' => array()
                        );
@@ -317,19 +374,35 @@ class Parser
                return $rnd;
        }
 
+       # categoryMagic
+       # generate a list of subcategories and pages for a category
+       # depending on wfMsg("usenewcategorypage") it either calls the new
+       # or the old code. The new code will not work properly for some
+       # languages due to sorting issues, so they might want to turn it
+       # off.
+       function categoryMagic() {
+               $msg = wfMsg('usenewcategorypage');
+               if ( '0' == @$msg[0] )
+               {
+                       return $this->oldCategoryMagic();
+               } else {
+                       return $this->newCategoryMagic();
+               }
+       }
+
        # This method generates the list of subcategories and pages for a category
-       function categoryMagic ()
-       {
-               global $wgLang , $wgUser ;
+       function oldCategoryMagic () {
+               global $wgLang ;
+               $fname = 'Parser::oldCategoryMagic';
+
                if ( !$this->mOptions->getUseCategoryMagic() ) return ; # Doesn't use categories at all
 
-               $cns = Namespace::getCategory() ;
-               if ( $this->mTitle->getNamespace() != $cns ) return "" ; # This ain't a category page
+               if ( $this->mTitle->getNamespace() != NS_CATEGORY ) return "" ; # This ain't a category page
 
                $r = "<br style=\"clear:both;\"/>\n";
 
 
-               $sk =& $wgUser->getSkin() ;
+               $sk =& $this->mOptions->getSkin() ;
 
                $articles = array() ;
                $children = array() ;
@@ -337,10 +410,15 @@ class Parser
                $id = $this->mTitle->getArticleID() ;
 
                # FIXME: add limits
-               $t = wfStrencode( $this->mTitle->getDBKey() );
-               $sql = "SELECT DISTINCT cur_title,cur_namespace FROM cur,categorylinks WHERE cl_to='$t' AND cl_from=cur_id ORDER BY cl_sortkey" ;
-               $res = wfQuery ( $sql, DB_READ ) ;
-               while ( $x = wfFetchObject ( $res ) ) $data[] = $x ;
+               $dbr =& wfGetDB( DB_SLAVE );
+               $cur = $dbr->tableName( 'cur' );
+               $categorylinks = $dbr->tableName( 'categorylinks' );
+
+               $t = $dbr->strencode( $this->mTitle->getDBKey() );
+               $sql = "SELECT DISTINCT cur_title,cur_namespace FROM $cur,$categorylinks " .
+                       "WHERE cl_to='$t' AND cl_from=cur_id ORDER BY cl_sortkey" ;
+               $res = $dbr->query( $sql, $fname ) ;
+               while ( $x = $dbr->fetchObject ( $res ) ) $data[] = $x ;
 
                # For all pages that link to this category
                foreach ( $data AS $x )
@@ -349,76 +427,261 @@ class Parser
                        if ( $t != "" ) $t .= ":" ;
                        $t .= $x->cur_title ;
 
-                       if ( $x->cur_namespace == $cns ) {
+                       if ( $x->cur_namespace == NS_CATEGORY ) {
                                array_push ( $children , $sk->makeLink ( $t ) ) ; # Subcategory
                        } else {
                                array_push ( $articles , $sk->makeLink ( $t ) ) ; # Page in this category
                        }
                }
-               wfFreeResult ( $res ) ;
+               $dbr->freeResult ( $res ) ;
 
                # Showing subcategories
                if ( count ( $children ) > 0 ) {
-                       $r .= "<h2>".wfMsg("subcategories")."</h2>\n" ;
-                       $r .= implode ( ", " , $children ) ;
+                       $r .= '<h2>'.wfMsg('subcategories')."</h2>\n" ;
+                       $r .= implode ( ', ' , $children ) ;
                }
 
                # Showing pages in this category
                if ( count ( $articles ) > 0 ) {
                        $ti = $this->mTitle->getText() ;
-                       $h =  wfMsg( "category_header", $ti );
+                       $h =  wfMsg( 'category_header', $ti );
                        $r .= "<h2>{$h}</h2>\n" ;
-                       $r .= implode ( ", " , $articles ) ;
+                       $r .= implode ( ', ' , $articles ) ;
+               }
+
+               return $r ;
+       }
+
+
+
+       function newCategoryMagic () {
+               global $wgLang;
+               if ( !$this->mOptions->getUseCategoryMagic() ) return ; # Doesn't use categories at all
+
+               if ( $this->mTitle->getNamespace() != NS_CATEGORY ) return '' ; # This ain't a category page
+
+               $r = "<br style=\"clear:both;\"/>\n";
+
+
+               $sk =& $this->mOptions->getSkin() ;
+
+               $articles = array() ;
+               $articles_start_char = array();
+               $children = array() ;
+               $children_start_char = array();
+               $data = array () ;
+               $id = $this->mTitle->getArticleID() ;
+
+               # FIXME: add limits
+               $dbr =& wfGetDB( DB_SLAVE );
+               $cur = $dbr->tableName( 'cur' );
+               $categorylinks = $dbr->tableName( 'categorylinks' );
+
+               $t = $dbr->strencode( $this->mTitle->getDBKey() );
+               $sql = "SELECT DISTINCT cur_title,cur_namespace,cl_sortkey FROM " .
+                       "$cur,$categorylinks WHERE cl_to='$t' AND cl_from=cur_id ORDER BY cl_sortkey" ;
+               $res = $dbr->query ( $sql ) ;
+               while ( $x = $dbr->fetchObject ( $res ) )
+               {
+                       $t = $ns = $wgLang->getNsText ( $x->cur_namespace ) ;
+                       if ( $t != '' ) $t .= ':' ;
+                       $t .= $x->cur_title ;
+
+                       if ( $x->cur_namespace == NS_CATEGORY ) {
+                               $ctitle = str_replace( '_',' ',$x->cur_title );
+                               array_push ( $children, $sk->makeKnownLink ( $t, $ctitle ) ) ; # Subcategory
+
+                               // If there's a link from Category:A to Category:B, the sortkey of the resulting
+                               // entry in the categorylinks table is Category:A, not A, which it SHOULD be.
+                               // Workaround: If sortkey == "Category:".$title, than use $title for sorting,
+                               // else use sortkey...
+                               if ( ($ns.":".$ctitle) ==  $x->cl_sortkey ) {
+                                       array_push ( $children_start_char, $wgLang->firstChar( $x->cur_title ) );
+                               } else {
+                                       array_push ( $children_start_char, $wgLang->firstChar( $x->cl_sortkey ) ) ;
+                               }
+                       } else {
+                               array_push ( $articles , $sk->makeKnownLink ( $t ) ) ; # Page in this category
+                               array_push ( $articles_start_char, $wgLang->firstChar( $x->cl_sortkey ) ) ;
+                       }
+               }
+               $dbr->freeResult ( $res ) ;
+
+               $ti = $this->mTitle->getText() ;
+
+               # Don't show subcategories section if there are none.
+               if ( count ( $children ) > 0 )
+               {
+                       # Showing subcategories
+                       $r .= '<h2>' . wfMsg( 'subcategories' ) . "</h2>\n"
+                               . wfMsg( 'subcategorycount', count( $children ) );
+                       if ( count ( $children ) > 6 ) {
+
+                               // divide list into three equal chunks
+                               $chunk = (int) (count ( $children ) / 3);
+
+                               // get and display header
+                               $r .= '<table width="100%"><tr valign="top">';
+
+                               $startChunk = 0;
+                               $endChunk = $chunk;
+
+                               // loop through the chunks
+                               for($startChunk = 0, $endChunk = $chunk, $chunkIndex = 0;
+                                       $chunkIndex < 3;
+                                       $chunkIndex++, $startChunk = $endChunk, $endChunk += $chunk + 1)
+                               {
+
+                                       $r .= '<td><ul>';
+                                       // output all subcategories to category
+                                       for ($index = $startChunk ;
+                                               $index < $endChunk && $index < count($children);
+                                               $index++ )
+                                       {
+                                               // check for change of starting letter or begging of chunk
+                                               if ( ($children_start_char[$index] != $children_start_char[$index - 1])
+                                                       || ($index == $startChunk) )
+                                               {
+                                                       $r .= "</ul><h3>{$children_start_char[$index]}</h3>\n<ul>";
+                                               }
+
+                                               $r .= "<li>{$children[$index]}</li>";
+                                       }
+                                       $r .= '</ul></td>';
+
+
+                               }
+                               $r .= '</tr></table>';
+                       } else {
+                               // for short lists of subcategories to category.
+
+                               $r .= "<h3>{$children_start_char[0]}</h3>\n";
+                               $r .= '<ul><li>'.$children[0].'</li>';
+                               for ($index = 1; $index < count($children); $index++ )
+                               {
+                                       if ($children_start_char[$index] != $children_start_char[$index - 1])
+                                       {
+                                               $r .= "</ul><h3>{$children_start_char[$index]}</h3>\n<ul>";
+                                       }
+
+                                       $r .= "<li>{$children[$index]}</li>";
+                               }
+                               $r .= '</ul>';
+                       }
+               } # END of if ( count($children) > 0 )
+
+               $r .= '<h2>' . wfMsg( 'category_header', $ti ) . "</h2>\n" .
+                       wfMsg( 'categoryarticlecount', count( $articles ) );
+
+               # Showing articles in this category
+               if ( count ( $articles ) > 6) {
+                       $ti = $this->mTitle->getText() ;
+
+                       // divide list into three equal chunks
+                       $chunk = (int) (count ( $articles ) / 3);
+
+                       // get and display header
+                       $r .= '<table width="100%"><tr valign="top">';
+
+                       // loop through the chunks
+                       for($startChunk = 0, $endChunk = $chunk, $chunkIndex = 0;
+                               $chunkIndex < 3;
+                               $chunkIndex++, $startChunk = $endChunk, $endChunk += $chunk + 1)
+                       {
+
+                               $r .= '<td><ul>';
+
+                               // output all articles in category
+                               for ($index = $startChunk ;
+                                       $index < $endChunk && $index < count($articles);
+                                       $index++ )
+                               {
+                                       // check for change of starting letter or begging of chunk
+                                       if ( ($articles_start_char[$index] != $articles_start_char[$index - 1])
+                                               || ($index == $startChunk) )
+                                       {
+                                               $r .= "</ul><h3>{$articles_start_char[$index]}</h3>\n<ul>";
+                                       }
+
+                                       $r .= "<li>{$articles[$index]}</li>";
+                               }
+                               $r .= '</ul></td>';
+
+
+                       }
+                       $r .= '</tr></table>';
+               } elseif ( count ( $articles )  > 0) {
+                       // for short lists of articles in categories.
+                       $ti = $this->mTitle->getText() ;
+
+                       $r .= '<h3>'.$articles_start_char[0]."</h3>\n";
+                       $r .= '<ul><li>'.$articles[0].'</li>';
+                       for ($index = 1; $index < count($articles); $index++ )
+                       {
+                               if ($articles_start_char[$index] != $articles_start_char[$index - 1])
+                               {
+                                       $r .= "</ul><h3>{$articles_start_char[$index]}</h3>\n<ul>";
+                               }
+
+                               $r .= "<li>{$articles[$index]}</li>";
+                       }
+                       $r .= '</ul>';
                }
 
 
                return $r ;
        }
 
-       function getHTMLattrs ()
-       {
+       # Return allowed HTML attributes
+       function getHTMLattrs () {
                $htmlattrs = array( # Allowed attributes--no scripting, etc.
-                               "title", "align", "lang", "dir", "width", "height",
-                               "bgcolor", "clear", /* BR */ "noshade", /* HR */
-                               "cite", /* BLOCKQUOTE, Q */ "size", "face", "color",
-                               /* FONT */ "type", "start", "value", "compact",
+                               'title', 'align', 'lang', 'dir', 'width', 'height',
+                               'bgcolor', 'clear', /* BR */ 'noshade', /* HR */
+                               'cite', /* BLOCKQUOTE, Q */ 'size', 'face', 'color',
+                               /* FONT */ 'type', 'start', 'value', 'compact',
                                /* For various lists, mostly deprecated but safe */
-                               "summary", "width", "border", "frame", "rules",
-                               "cellspacing", "cellpadding", "valign", "char",
-                               "charoff", "colgroup", "col", "span", "abbr", "axis",
-                               "headers", "scope", "rowspan", "colspan", /* Tables */
-                               "id", "class", "name", "style" /* For CSS */
+                               'summary', 'width', 'border', 'frame', 'rules',
+                               'cellspacing', 'cellpadding', 'valign', 'char',
+                               'charoff', 'colgroup', 'col', 'span', 'abbr', 'axis',
+                               'headers', 'scope', 'rowspan', 'colspan', /* Tables */
+                               'id', 'class', 'name', 'style' /* For CSS */
                                );
                return $htmlattrs ;
        }
 
-       function fixTagAttributes ( $t )
-       {
-               if ( trim ( $t ) == "" ) return "" ; # Saves runtime ;-)
+       # Remove non approved attributes and javascript in css
+       function fixTagAttributes ( $t ) {
+               if ( trim ( $t ) == '' ) return '' ; # Saves runtime ;-)
                $htmlattrs = $this->getHTMLattrs() ;
 
                # Strip non-approved attributes from the tag
                $t = preg_replace(
-                       "/(\\w+)(\\s*=\\s*([^\\s\">]+|\"[^\">]*\"))?/e",
+                       '/(\\w+)(\\s*=\\s*([^\\s\">]+|\"[^\">]*\"))?/e',
                        "(in_array(strtolower(\"\$1\"),\$htmlattrs)?(\"\$1\".((\"x\$3\" != \"x\")?\"=\$3\":'')):'')",
                        $t);
+
+               $t = str_replace ( "<></>" , "" , $t ) ; # This should fix bug 980557
+
                # Strip javascript "expression" from stylesheets. Brute force approach:
                # If anythin offensive is found, all attributes of the HTML tag are dropped
 
                if( preg_match(
-                       "/style\\s*=.*(expression|tps*:\/\/|url\\s*\().*/is",
+                       '/style\\s*=.*(expression|tps*:\/\/|url\\s*\().*/is',
                        wfMungeToUtf8( $t ) ) )
                {
-                       $t="";
+                       $t='';
                }
 
                return trim ( $t ) ;
        }
 
-       /* interface with html tidy, used if $wgUseTidy = true */
+       # interface with html tidy, used if $wgUseTidy = true
        function tidy ( $text ) {
                global $wgTidyConf, $wgTidyBin, $wgTidyOpts;
                global $wgInputEncoding, $wgOutputEncoding;
+               $fname = 'Parser::tidy';
+               wfProfileIn( $fname );
+
                $cleansource = '';
                switch(strtoupper($wgOutputEncoding)) {
                        case 'ISO-8859-1':
@@ -431,17 +694,17 @@ class Parser
                                $wgTidyOpts .= ' -raw';
                        }
 
-               $text = '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"'.
+               $wrappedtext = '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"'.
 ' "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html>'.
 '<head><title>test</title></head><body>'.$text.'</body></html>';
                $descriptorspec = array(
-                       0 => array("pipe", "r"),
-                       1 => array("pipe", "w"),
-                       2 => array("file", "/dev/null", "a")
+                       0 => array('pipe', 'r'),
+                       1 => array('pipe', 'w'),
+                       2 => array('file', '/dev/null', 'a')
                );
                $process = proc_open("$wgTidyBin -config $wgTidyConf $wgTidyOpts", $descriptorspec, $pipes);
                if (is_resource($process)) {
-                       fwrite($pipes[0], $text);
+                       fwrite($pipes[0], $wrappedtext);
                        fclose($pipes[0]);
                        while (!feof($pipes[1])) {
                                $cleansource .= fgets($pipes[1], 1024);
@@ -449,134 +712,137 @@ class Parser
                        fclose($pipes[1]);
                        $return_value = proc_close($process);
                }
+
+               wfProfileOut( $fname );
+
                if( $cleansource == '' && $text != '') {
-                       return '<h2>'.wfMsg('seriousxhtmlerrors').'</h2><pre>'.htmlspecialchars($text).'</pre>';
+                       wfDebug( "Tidy error detected!\n" );
+                       return $text . "\n<!-- Tidy found serious XHTML errors -->\n";
                } else {
                        return $cleansource;
                }
        }
 
-       function doTableStuff ( $t )
-       {
+       # parse the wiki syntax used to render tables
+       function doTableStuff ( $t ) {
+               $fname = 'Parser::doTableStuff';
+               wfProfileIn( $fname );
+
                $t = explode ( "\n" , $t ) ;
                $td = array () ; # Is currently a td tag open?
-                       $ltd = array () ; # Was it TD or TH?
-                       $tr = array () ; # Is currently a tr tag open?
-                       $ltr = array () ; # tr attributes
-                       foreach ( $t AS $k => $x )
+               $ltd = array () ; # Was it TD or TH?
+               $tr = array () ; # Is currently a tr tag open?
+               $ltr = array () ; # tr attributes
+               $indent_level = 0; # indent level of the table
+               foreach ( $t AS $k => $x )
+               {
+                       $x = trim ( $x ) ;
+                       $fc = substr ( $x , 0 , 1 ) ;
+                       if ( preg_match( '/^(:*)\{\|(.*)$/', $x, $matches ) )
                        {
-                               $x = trim ( $x ) ;
-                               $fc = substr ( $x , 0 , 1 ) ;
-                               if ( "{|" == substr ( $x , 0 , 2 ) )
-                               {
-                                       $t[$k] = "\n<table " . $this->fixTagAttributes ( substr ( $x , 3 ) ) . ">" ;
-                                       array_push ( $td , false ) ;
-                                       array_push ( $ltd , "" ) ;
-                                       array_push ( $tr , false ) ;
-                                       array_push ( $ltr , "" ) ;
-                               }
-                               else if ( count ( $td ) == 0 ) { } # Don't do any of the following
-                               else if ( "|}" == substr ( $x , 0 , 2 ) )
-                               {
-                                       $z = "</table>\n" ;
-                                       $l = array_pop ( $ltd ) ;
-                                       if ( array_pop ( $tr ) ) $z = "</tr>" . $z ;
-                                       if ( array_pop ( $td ) ) $z = "</{$l}>" . $z ;
-                                       array_pop ( $ltr ) ;
-                                       $t[$k] = $z ;
-                               }
-                               /*      else if ( "|_" == substr ( $x , 0 , 2 ) ) # Caption
-                                               {
-                                               $z = trim ( substr ( $x , 2 ) ) ;
-                                               $t[$k] = "<caption>{$z}</caption>\n" ;
-                                               }*/
-                               else if ( "|-" == substr ( $x , 0 , 2 ) ) # Allows for |---------------
+                               $indent_level = strlen( $matches[1] );
+                               $t[$k] = "\n" .
+                                       str_repeat( "<dl><dd>", $indent_level ) .
+                                       "<table " . $this->fixTagAttributes ( $matches[2] ) . '>' ;
+                               array_push ( $td , false ) ;
+                               array_push ( $ltd , '' ) ;
+                               array_push ( $tr , false ) ;
+                               array_push ( $ltr , '' ) ;
+                       }
+                       else if ( count ( $td ) == 0 ) { } # Don't do any of the following
+                       else if ( '|}' == substr ( $x , 0 , 2 ) )
+                       {
+                               $z = "</table>\n" ;
+                               $l = array_pop ( $ltd ) ;
+                               if ( array_pop ( $tr ) ) $z = '</tr>' . $z ;
+                               if ( array_pop ( $td ) ) $z = "</{$l}>" . $z ;
+                               array_pop ( $ltr ) ;
+                               $t[$k] = $z . str_repeat( "</dd></dl>", $indent_level );
+                       }
+                       else if ( '|-' == substr ( $x , 0 , 2 ) ) # Allows for |---------------
+                       {
+                               $x = substr ( $x , 1 ) ;
+                               while ( $x != '' && substr ( $x , 0 , 1 ) == '-' ) $x = substr ( $x , 1 ) ;
+                               $z = '' ;
+                               $l = array_pop ( $ltd ) ;
+                               if ( array_pop ( $tr ) ) $z = '</tr>' . $z ;
+                               if ( array_pop ( $td ) ) $z = "</{$l}>" . $z ;
+                               array_pop ( $ltr ) ;
+                               $t[$k] = $z ;
+                               array_push ( $tr , false ) ;
+                               array_push ( $td , false ) ;
+                               array_push ( $ltd , '' ) ;
+                               array_push ( $ltr , $this->fixTagAttributes ( $x ) ) ;
+                       }
+                       else if ( '|' == $fc || '!' == $fc || '|+' == substr ( $x , 0 , 2 ) ) # Caption
+                       {
+                               if ( '|+' == substr ( $x , 0 , 2 ) )
                                {
+                                       $fc = '+' ;
                                        $x = substr ( $x , 1 ) ;
-                                       while ( $x != "" && substr ( $x , 0 , 1 ) == '-' ) $x = substr ( $x , 1 ) ;
-                                       $z = "" ;
-                                       $l = array_pop ( $ltd ) ;
-                                       if ( array_pop ( $tr ) ) $z = "</tr>" . $z ;
-                                       if ( array_pop ( $td ) ) $z = "</{$l}>" . $z ;
-                                       array_pop ( $ltr ) ;
-                                       $t[$k] = $z ;
-                                       array_push ( $tr , false ) ;
-                                       array_push ( $td , false ) ;
-                                       array_push ( $ltd , "" ) ;
-                                       array_push ( $ltr , $this->fixTagAttributes ( $x ) ) ;
                                }
-                               else if ( "|" == $fc || "!" == $fc || "|+" == substr ( $x , 0 , 2 ) ) # Caption
+                               $after = substr ( $x , 1 ) ;
+                               if ( $fc == '!' ) $after = str_replace ( '!!' , '||' , $after ) ;
+                               $after = explode ( '||' , $after ) ;
+                               $t[$k] = '' ;
+                               foreach ( $after AS $theline )
                                {
-                                       if ( "|+" == substr ( $x , 0 , 2 ) )
+                                       $z = '' ;
+                                       if ( $fc != '+' )
                                        {
-                                               $fc = "+" ;
-                                               $x = substr ( $x , 1 ) ;
+                                               $tra = array_pop ( $ltr ) ;
+                                               if ( !array_pop ( $tr ) ) $z = "<tr {$tra}>\n" ;
+                                               array_push ( $tr , true ) ;
+                                               array_push ( $ltr , '' ) ;
                                        }
-                                       $after = substr ( $x , 1 ) ;
-                                       if ( $fc == "!" ) $after = str_replace ( "!!" , "||" , $after ) ;
-                                       $after = explode ( "||" , $after ) ;
-                                       $t[$k] = "" ;
-                                       foreach ( $after AS $theline )
-                                       {
-                                               $z = "" ;
-                                               if ( $fc != "+" )
-                                               {
-                                                       $tra = array_pop ( $ltr ) ;
-                                                       if ( !array_pop ( $tr ) ) $z = "<tr {$tra}>\n" ;
-                                                       array_push ( $tr , true ) ;
-                                                       array_push ( $ltr , "" ) ;
-                                               }
 
-                                               $l = array_pop ( $ltd ) ;
-                                               if ( array_pop ( $td ) ) $z = "</{$l}>" . $z ;
-                                               if ( $fc == "|" ) $l = "td" ;
-                                               else if ( $fc == "!" ) $l = "th" ;
-                                               else if ( $fc == "+" ) $l = "caption" ;
-                                               else $l = "" ;
-                                               array_push ( $ltd , $l ) ;
-                                               $y = explode ( "|" , $theline , 2 ) ;
-                                               if ( count ( $y ) == 1 ) $y = "{$z}<{$l}>{$y[0]}" ;
-                                               else $y = $y = "{$z}<{$l} ".$this->fixTagAttributes($y[0]).">{$y[1]}" ;
-                                               $t[$k] .= $y ;
-                                               array_push ( $td , true ) ;
-                                       }
+                                       $l = array_pop ( $ltd ) ;
+                                       if ( array_pop ( $td ) ) $z = "</{$l}>" . $z ;
+                                       if ( $fc == '|' ) $l = 'td' ;
+                                       else if ( $fc == '!' ) $l = 'th' ;
+                                       else if ( $fc == '+' ) $l = 'caption' ;
+                                       else $l = '' ;
+                                       array_push ( $ltd , $l ) ;
+                                       $y = explode ( '|' , $theline , 2 ) ;
+                                       if ( count ( $y ) == 1 ) $y = "{$z}<{$l}>{$y[0]}" ;
+                                       else $y = $y = "{$z}<{$l} ".$this->fixTagAttributes($y[0]).">{$y[1]}" ;
+                                       $t[$k] .= $y ;
+                                       array_push ( $td , true ) ;
                                }
                        }
+               }
 
                # Closing open td, tr && table
                while ( count ( $td ) > 0 )
                {
-                       if ( array_pop ( $td ) ) $t[] = "</td>" ;
-                       if ( array_pop ( $tr ) ) $t[] = "</tr>" ;
-                       $t[] = "</table>" ;
+                       if ( array_pop ( $td ) ) $t[] = '</td>' ;
+                       if ( array_pop ( $tr ) ) $t[] = '</tr>' ;
+                       $t[] = '</table>' ;
                }
 
                $t = implode ( "\n" , $t ) ;
                #               $t = $this->removeHTMLtags( $t );
+               wfProfileOut( $fname );
                return $t ;
        }
 
        # Parses the text and adds the result to the strip state
        # Returns the strip tag
-       function stripParse( $text, $linestart, $args ) 
+       function stripParse( $text, $newline, $args )
        {
                $text = $this->strip( $text, $this->mStripState );
-               $text = $this->internalParse( $text, $linestart, $args, false );
-               if( $linestart ) {
-                       $text = "\n" . $text;
-               }
-               return $this->insertStripItem( $text, $this->mStripState );
+               $text = $this->internalParse( $text, (bool)$newline, $args, false );
+               return $newline.$this->insertStripItem( $text, $this->mStripState );
        }
-       
-       function internalParse( $text, $linestart, $args = array(), $isMain=true )
-       {
-               $fname = "Parser::internalParse";
+
+       function internalParse( $text, $linestart, $args = array(), $isMain=true ) {
+               $fname = 'Parser::internalParse';
                wfProfileIn( $fname );
 
                $text = $this->removeHTMLtags( $text );
                $text = $this->replaceVariables( $text, $args );
 
-               $text = preg_replace( "/(^|\n)-----*/", "\\1<hr/>", $text );
+               $text = preg_replace( '/(^|\n)-----*/', '\\1<hr />', $text );
 
                $text = $this->doHeadings( $text );
                if($this->mOptions->getUseDynamicDates()) {
@@ -585,91 +851,225 @@ class Parser
                }
                $text = $this->doAllQuotes( $text );
                $text = $this->replaceExternalLinks( $text );
+               $text = $this->doMagicLinks( $text );
                $text = $this->replaceInternalLinks ( $text );
                $text = $this->replaceInternalLinks ( $text );
-               //$text = $this->doTokenizedParser ( $text );
-               $text = $this->doTableStuff ( $text ) ;
-               $text = $this->magicISBN( $text );
-               $text = $this->magicRFC( $text );
+                               
+               $text = $this->unstrip( $text, $this->mStripState );
+               $text = $this->unstripNoWiki( $text, $this->mStripState );
+
+               $text = $this->doTableStuff( $text );
                $text = $this->formatHeadings( $text, $isMain );
                $sk =& $this->mOptions->getSkin();
                $text = $sk->transformContent( $text );
 
-               if ( !isset ( $this->categoryMagicDone ) ) {
+               if ( $isMain && !isset ( $this->categoryMagicDone ) ) {
                        $text .= $this->categoryMagic () ;
                        $this->categoryMagicDone = true ;
                }
-
+               
                wfProfileOut( $fname );
                return $text;
        }
 
+       /* private */ function &doMagicLinks( &$text ) {
+               $text = $this->magicISBN( $text );
+               $text = $this->magicGEO( $text );
+               $text = $this->magicRFC( $text );
+               return $text;
+       }
 
-       /* private */ function doHeadings( $text )
+       # Parse ^^ tokens and return html
+       /* private */ function doExponent ( $text )
        {
+               $fname = 'Parser::doExponent';
+               wfProfileIn( $fname);
+               $text = preg_replace('/\^\^(.*)\^\^/','<small><sup>\\1</sup></small>', $text);
+               wfProfileOut( $fname);
+               return $text;
+       }
+
+    # Parse headers and return html
+       /* private */ function doHeadings( $text ) {
+               $fname = 'Parser::doHeadings';
+               wfProfileIn( $fname );
                for ( $i = 6; $i >= 1; --$i ) {
-                       $h = substr( "======", 0, $i );
+                       $h = substr( '======', 0, $i );
                        $text = preg_replace( "/^{$h}(.+){$h}(\\s|$)/m",
                          "<h{$i}>\\1</h{$i}>\\2", $text );
                }
+               wfProfileOut( $fname );
                return $text;
        }
 
-       /* private */ function doAllQuotes( $text )
-       {
-               $outtext = "";
-               $lines = explode( "\r\n", $text );
+       /* private */ function doAllQuotes( $text ) {
+               $fname = 'Parser::doAllQuotes';
+               wfProfileIn( $fname );
+               $outtext = '';
+               $lines = explode( "\n", $text );
                foreach ( $lines as $line ) {
-                       $outtext .= $this->doQuotes ( "", $line, "" ) . "\r\n";
+                       $outtext .= $this->doQuotes ( $line ) . "\n";
                }
+               $outtext = substr($outtext, 0,-1);
+               wfProfileOut( $fname );
                return $outtext;
        }
 
-       /* private */ function doQuotes( $pre, $text, $mode )
-       {
-               if ( preg_match( "/^(.*)''(.*)$/sU", $text, $m ) ) {
-                       $m1_strong = ($m[1] == "") ? "" : "<strong>{$m[1]}</strong>";
-                       $m1_em = ($m[1] == "") ? "" : "<em>{$m[1]}</em>";
-                       if ( substr ($m[2], 0, 1) == "'" ) {
-                               $m[2] = substr ($m[2], 1);
-                               if ($mode == "em") {
-                                       return $this->doQuotes ( $m[1], $m[2], ($m[1] == "") ? "both" : "emstrong" );
-                               } else if ($mode == "strong") {
-                                       return $m1_strong . $this->doQuotes ( "", $m[2], "" );
-                               } else if (($mode == "emstrong") || ($mode == "both")) {
-                                       return $this->doQuotes ( "", $pre.$m1_strong.$m[2], "em" );
-                               } else if ($mode == "strongem") {
-                                       return "<strong>{$pre}{$m1_em}</strong>" . $this->doQuotes ( "", $m[2], "em" );
-                               } else {
-                                       return $m[1] . $this->doQuotes ( "", $m[2], "strong" );
-                               }
-                       } else {
-                               if ($mode == "strong") {
-                                       return $this->doQuotes ( $m[1], $m[2], ($m[1] == "") ? "both" : "strongem" );
-                               } else if ($mode == "em") {
-                                       return $m1_em . $this->doQuotes ( "", $m[2], "" );
-                               } else if ($mode == "emstrong") {
-                                       return "<em>{$pre}{$m1_strong}</em>" . $this->doQuotes ( "", $m[2], "strong" );
-                               } else if (($mode == "strongem") || ($mode == "both")) {
-                                       return $this->doQuotes ( "", $pre.$m1_em.$m[2], "strong" );
-                               } else {
-                                       return $m[1] . $this->doQuotes ( "", $m[2], "em" );
+       /* private */ function doQuotes( $text ) {
+               $arr = preg_split ("/(''+)/", $text, -1, PREG_SPLIT_DELIM_CAPTURE);
+               if (count ($arr) == 1)
+                       return $text;
+               else
+               {
+                       # First, do some preliminary work. This may shift some apostrophes from
+                       # being mark-up to being text. It also counts the number of occurrences
+                       # of bold and italics mark-ups.
+                       $i = 0;
+                       $numbold = 0;
+                       $numitalics = 0;
+                       foreach ($arr as $r)
+                       {
+                               if (($i % 2) == 1)
+                               {
+                                       # If there are ever four apostrophes, assume the first is supposed to
+                                       # be text, and the remaining three constitute mark-up for bold text.
+                                       if (strlen ($arr[$i]) == 4)
+                                       {
+                                               $arr[$i-1] .= "'";
+                                               $arr[$i] = "'''";
+                                       }
+                                       # If there are more than 5 apostrophes in a row, assume they're all
+                                       # text except for the last 5.
+                                       else if (strlen ($arr[$i]) > 5)
+                                       {
+                                               $arr[$i-1] .= str_repeat ("'", strlen ($arr[$i]) - 5);
+                                               $arr[$i] = "'''''";
+                                       }
+                                       # Count the number of occurrences of bold and italics mark-ups.
+                                       # We are not counting sequences of five apostrophes.
+                                       if (strlen ($arr[$i]) == 2) $numitalics++;  else
+                                       if (strlen ($arr[$i]) == 3) $numbold++;
                                }
+                               $i++;
                        }
-               } else {
-                       $text_strong = ($text == "") ? "" : "<strong>{$text}</strong>";
-                       $text_em = ($text == "") ? "" : "<em>{$text}</em>";
-                       if ($mode == "") {
-                               return $pre . $text;
-                       } else if ($mode == "em") {
-                               return $pre . $text_em;
-                       } else if ($mode == "strong") {
-                               return $pre . $text_strong;
-                       } else if ($mode == "strongem") {
-                               return (($pre == "") && ($text == "")) ? "" : "<strong>{$pre}{$text_em}</strong>";
-                       } else {
-                               return (($pre == "") && ($text == "")) ? "" : "<em>{$pre}{$text_strong}</em>";
+
+                       # If there is an odd number of both bold and italics, it is likely
+                       # that one of the bold ones was meant to be an apostrophe followed
+                       # by italics. Which one we cannot know for certain, but it is more
+                       # likely to be one that has a single-letter word before it.
+                       if (($numbold % 2 == 1) && ($numitalics % 2 == 1))
+                       {
+                               $i = 0;
+                               $firstsingleletterword = -1;
+                               $firstmultiletterword = -1;
+                               $firstspace = -1;
+                               foreach ($arr as $r)
+                               {
+                                       if (($i % 2 == 1) and (strlen ($r) == 3))
+                                       {
+                                               $x1 = substr ($arr[$i-1], -1);
+                                               $x2 = substr ($arr[$i-1], -2, 1);
+                                               if ($x1 == " ") {
+                                                       if ($firstspace == -1) $firstspace = $i;
+                                               } else if ($x2 == " ") {
+                                                       if ($firstsingleletterword == -1) $firstsingleletterword = $i;
+                                               } else {
+                                                       if ($firstmultiletterword == -1) $firstmultiletterword = $i;
+                                               }
+                                       }
+                                       $i++;
+                               }
+
+                               # If there is a single-letter word, use it!
+                               if ($firstsingleletterword > -1)
+                               {
+                                       $arr [ $firstsingleletterword ] = "''";
+                                       $arr [ $firstsingleletterword-1 ] .= "'";
+                               }
+                               # If not, but there's a multi-letter word, use that one.
+                               else if ($firstmultiletterword > -1)
+                               {
+                                       $arr [ $firstmultiletterword ] = "''";
+                                       $arr [ $firstmultiletterword-1 ] .= "'";
+                               }
+                               # ... otherwise use the first one that has neither.
+                               else
+                               {
+                                       $arr [ $firstspace ] = "''";
+                                       $arr [ $firstspace-1 ] .= "'";
+                               }
                        }
+
+                       # Now let's actually convert our apostrophic mush to HTML!
+                       $output = '';
+                       $buffer = '';
+                       $state = '';
+                       $i = 0;
+                       foreach ($arr as $r)
+                       {
+                               if (($i % 2) == 0)
+                               {
+                                       if ($state == 'both')
+                                               $buffer .= $r;
+                                       else
+                                               $output .= $r;
+                               }
+                               else
+                               {
+                                       if (strlen ($r) == 2)
+                                       {
+                                               if ($state == 'em')
+                                               { $output .= "</em>"; $state = ''; }
+                                               else if ($state == 'strongem')
+                                               { $output .= "</em>"; $state = 'strong'; }
+                                               else if ($state == 'emstrong')
+                                               { $output .= "</strong></em><strong>"; $state = 'strong'; }
+                                               else if ($state == 'both')
+                                               { $output .= "<strong><em>{$buffer}</em>"; $state = 'strong'; }
+                                               else # $state can be 'strong' or ''
+                                               { $output .= "<em>"; $state .= 'em'; }
+                                       }
+                                       else if (strlen ($r) == 3)
+                                       {
+                                               if ($state == 'strong')
+                                               { $output .= "</strong>"; $state = ''; }
+                                               else if ($state == 'strongem')
+                                               { $output .= "</em></strong><em>"; $state = 'em'; }
+                                               else if ($state == 'emstrong')
+                                               { $output .= "</strong>"; $state = 'em'; }
+                                               else if ($state == 'both')
+                                               { $output .= "<em><strong>{$buffer}</strong>"; $state = 'em'; }
+                                               else # $state can be 'em' or ''
+                                               { $output .= "<strong>"; $state .= 'strong'; }
+                                       }
+                                       else if (strlen ($r) == 5)
+                                       {
+                                               if ($state == 'strong')
+                                               { $output .= "</strong><em>"; $state = 'em'; }
+                                               else if ($state == 'em')
+                                               { $output .= "</em><strong>"; $state = 'strong'; }
+                                               else if ($state == 'strongem')
+                                               { $output .= "</em></strong>"; $state = ''; }
+                                               else if ($state == 'emstrong')
+                                               { $output .= "</strong></em>"; $state = ''; }
+                                               else if ($state == 'both')
+                                               { $output .= "<em><strong>{$buffer}</strong></em>"; $state = ''; }
+                                               else # ($state == '')
+                                               { $buffer = ''; $state = 'both'; }
+                                       }
+                               }
+                               $i++;
+                       }
+                       # Now close all remaining tags.  Notice that the order is important.
+                       if ($state == 'strong' || $state == 'emstrong')
+                               $output .= "</strong>";
+                       if ($state == 'em' || $state == 'strongem' || $state == 'emstrong')
+                               $output .= "</em>";
+                       if ($state == 'strongem')
+                               $output .= "</strong>";
+                       if ($state == 'both')
+                               $output .= "<strong><em>{$buffer}</em></strong>";
+                       return $output;
                }
        }
 
@@ -677,103 +1077,150 @@ class Parser
        # and otherwise take great care in the order of things here, so
        # that we don't end up interpreting some URLs twice.
 
-       /* private */ function replaceExternalLinks( $text )
-       {
-               $fname = "Parser::replaceExternalLinks";
+       /* private */ function replaceExternalLinks( $text ) {
+               $fname = 'Parser::replaceExternalLinks';
                wfProfileIn( $fname );
-               $text = $this->subReplaceExternalLinks( $text, "http", true );
-               $text = $this->subReplaceExternalLinks( $text, "https", true );
-               $text = $this->subReplaceExternalLinks( $text, "ftp", false );
-               $text = $this->subReplaceExternalLinks( $text, "irc", false );
-               $text = $this->subReplaceExternalLinks( $text, "gopher", false );
-               $text = $this->subReplaceExternalLinks( $text, "news", false );
-               $text = $this->subReplaceExternalLinks( $text, "mailto", false );
-               wfProfileOut( $fname );
-               return $text;
-       }
 
-       /* private */ function subReplaceExternalLinks( $s, $protocol, $autonumber )
-       {
-               $unique = "4jzAfzB8hNvf4sqyO9Edd8pSmk9rE2in0Tgw3";
-               $uc = "A-Za-z0-9_\\/~%\\-+&*#?!=()@\\x80-\\xFF";
-
-               # this is  the list of separators that should be ignored if they
-               # are the last character of an URL but that should be included
-               # if they occur within the URL, e.g. "go to www.foo.com, where .."
-               # in this case, the last comma should not become part of the URL,
-               # but in "www.foo.com/123,2342,32.htm" it should.
-               $sep = ",;\.:";
-               $fnc = "A-Za-z0-9_.,~%\\-+&;#*?!=()@\\x80-\\xFF";
-               $images = "gif|png|jpg|jpeg";
-
-               # PLEASE NOTE: The curly braces { } are not part of the regex,
-               # they are interpreted as part of the string (used to tell PHP
-               # that the content of the string should be inserted there).
-               $e1 = "/(^|[^\\[])({$protocol}:)([{$uc}{$sep}]+)\\/([{$fnc}]+)\\." .
-                 "((?i){$images})([^{$uc}]|$)/";
-
-               $e2 = "/(^|[^\\[])({$protocol}:)(([".$uc."]|[".$sep."][".$uc."])+)([^". $uc . $sep. "]|[".$sep."]|$)/";
                $sk =& $this->mOptions->getSkin();
+               $linktrail = wfMsg('linktrail');
+               $bits = preg_split( EXT_LINK_BRACKETED, $text, -1, PREG_SPLIT_DELIM_CAPTURE );
 
-               if ( $autonumber and $this->mOptions->getAllowExternalImages() ) { # Use img tags only for HTTP urls
-                       $s = preg_replace( $e1, "\\1" . $sk->makeImage( "{$unique}:\\3" .
-                         "/\\4.\\5", "\\4.\\5" ) . "\\6", $s );
-               }
-               $s = preg_replace( $e2, "\\1" . "<a href=\"{$unique}:\\3\"" .
-                 $sk->getExternalLinkAttributes( "{$unique}:\\3", wfEscapeHTML(
-                 "{$unique}:\\3" ) ) . ">" . wfEscapeHTML( "{$unique}:\\3" ) .
-                 "</a>\\5", $s );
-               $s = str_replace( $unique, $protocol, $s );
+               $s = $this->replaceFreeExternalLinks( array_shift( $bits ) );
 
-               $a = explode( "[{$protocol}:", " " . $s );
-               $s = array_shift( $a );
-               $s = substr( $s, 1 );
-
-               $e1 = "/^([{$uc}"."{$sep}]+)](.*)\$/sD";
-               $e2 = "/^([{$uc}"."{$sep}]+)\\s+([^\\]]+)](.*)\$/sD";
-
-               foreach ( $a as $line ) {
-                       if ( preg_match( $e1, $line, $m ) ) {
-                               $link = "{$protocol}:{$m[1]}";
-                               $trail = $m[2];
-                               if ( $autonumber ) { $text = "[" . ++$this->mAutonumber . "]"; }
-                               else { $text = wfEscapeHTML( $link ); }
-                       } else if ( preg_match( $e2, $line, $m ) ) {
-                               $link = "{$protocol}:{$m[1]}";
-                               $text = $m[2];
-                               $trail = $m[3];
+               $i = 0;
+               while ( $i<count( $bits ) ) {
+                       $url = $bits[$i++];
+                       $protocol = $bits[$i++];
+                       $text = $bits[$i++];
+                       $trail = $bits[$i++];
+                       
+                       # If the link text is an image URL, replace it with an <img> tag
+                       # This happened by accident in the original parser, but some people used it extensively
+                       $img = $this->maybeMakeImageLink( $text );
+                       if ( $img !== false ) {
+                               $text = $img;
+                       }
+
+                       $dtrail = '';
+
+                       # No link text, e.g. [http://domain.tld/some.link]
+                       if ( $text == '' ) {
+                               # Autonumber if allowed
+                               if ( strpos( HTTP_PROTOCOLS, $protocol ) !== false ) { 
+                                       $text = "[" . ++$this->mAutonumber . "]";
+                               } else { 
+                                       # Otherwise just use the URL
+                                       $text = wfEscapeHTML( $url ); 
+                               }
                        } else {
-                               $s .= "[{$protocol}:" . $line;
-                               continue;
+                               # Have link text, e.g. [http://domain.tld/some.link text]s
+                               # Check for trail
+                               if ( preg_match( $linktrail, $trail, $m2 ) ) {
+                                       $dtrail = $m2[1];
+                                       $trail = $m2[2];
+                               }
                        }
-                       if( $link == $text || preg_match( "!$protocol://" . preg_quote( $text, "/" ) . "/?$!", $link ) ) {
-                               $paren = "";
+                       
+                       $encUrl = htmlspecialchars( $url );
+                       # Bit in parentheses showing the URL for the printable version
+                       if( $url == $text || preg_match( "!$protocol://" . preg_quote( $text, "/" ) . "/?$!", $url ) ) {
+                               $paren = '';
                        } else {
                                # Expand the URL for printable version
-                               $paren = "<span class='urlexpansion'> (<i>" . htmlspecialchars ( $link ) . "</i>)</span>";
+                               $paren = "<span class='urlexpansion'> (<i>" . htmlspecialchars ( $encUrl ) . "</i>)</span>";
                        }
-                       $la = $sk->getExternalLinkAttributes( $link, $text );
-                       $s .= "<a href='{$link}'{$la}>{$text}</a>{$paren}{$trail}";
 
+                       # Process the trail (i.e. everything after this link up until start of the next link),
+                       # replacing any non-bracketed links
+                       $trail = $this->replaceFreeExternalLinks( $trail );
+
+                       $la = $sk->getExternalLinkAttributes( $url, $text );
+                       
+                       # Use the encoded URL
+                       # This means that users can paste URLs directly into the text
+                       # Funny characters like &ouml; aren't valid in URLs anyway
+                       # This was changed in August 2004
+                       $s .= "<a href=\"{$url}\" {$la}>{$text}</a>{$dtrail}{$paren}{$trail}";
                }
+
+               wfProfileOut( $fname );
                return $s;
        }
 
+       # Replace anything that looks like a URL with a link
+       function replaceFreeExternalLinks( $text ) {
+               $bits = preg_split( '/((?:'.URL_PROTOCOLS.'):)/', $text, -1, PREG_SPLIT_DELIM_CAPTURE );
+               $s = array_shift( $bits );
+               $i = 0;
 
-       /* private */ function replaceInternalLinks( $s )
-       {
+               $sk =& $this->mOptions->getSkin();
+
+               while ( $i < count( $bits ) ){
+                       $protocol = $bits[$i++];
+                       $remainder = $bits[$i++];
+
+                       if ( preg_match( '/^('.EXT_LINK_URL_CLASS.'+)(.*)$/s', $remainder, $m ) ) {
+                               # Found some characters after the protocol that look promising
+                               $url = $protocol . $m[1];
+                               $trail = $m[2];
+                               
+                               # Move trailing punctuation to $trail
+                               $sep = ',;\.:!?';
+                               # If there is no left bracket, then consider right brackets fair game too
+                               if ( strpos( $url, '(' ) === false ) {
+                                       $sep .= ')';
+                               }
+
+                               $numSepChars = strspn( strrev( $url ), $sep );
+                               if ( $numSepChars ) {
+                                       $trail = substr( $url, -$numSepChars ) . $trail;
+                                       $url = substr( $url, 0, -$numSepChars );
+                               }
+
+                               # Replace &amp; from obsolete syntax with &
+                               $url = str_replace( '&amp;', '&', $url );
+
+                               # Is this an external image?
+                               $text = $this->maybeMakeImageLink( $url );
+                               if ( $text === false ) {
+                                       # Not an image, make a link
+                                       $text = $sk->makeExternalLink( $url, $url );
+                               }
+                               $s .= $text . $trail;
+                       } else {
+                               $s .= $protocol . $remainder;
+                       }
+               }
+               return $s;
+       }
+                               
+       function maybeMakeImageLink( $url ) {
+               $sk =& $this->mOptions->getSkin();
+               $text = false;
+               if ( $this->mOptions->getAllowExternalImages() ) {
+                       if ( preg_match( EXT_IMAGE_REGEX, $url ) ) {
+                               # Image found
+                               $text = $sk->makeImage( htmlspecialchars( $url ) );
+                       }
+               }
+               return $text;
+       }
+
+       /* private */ function replaceInternalLinks( $s ) {
                global $wgLang, $wgLinkCache;
                global $wgNamespacesWithSubpages, $wgLanguageCode;
-               static $fname = "Parser::replaceInternalLink" ;
+               static $fname = 'Parser::replaceInternalLinks' ;
                wfProfileIn( $fname );
 
-               wfProfileIn( "$fname-setup" );
+               wfProfileIn( $fname.'-setup' );
                static $tc = FALSE;
                # the % is needed to support urlencoded titles as well
-               if ( !$tc ) { $tc = Title::legalChars() . "#%"; }
+               if ( !$tc ) { $tc = Title::legalChars() . '#%'; }
                $sk =& $this->mOptions->getSkin();
 
-               $a = explode( "[[", " " . $s );
+               $redirect = MagicWord::get ( MAG_REDIRECT ) ;
+
+               $a = explode( '[[', ' ' . $s );
                $s = array_shift( $a );
                $s = substr( $s, 1 );
 
@@ -782,43 +1229,50 @@ class Parser
                if ( !$e1 ) { $e1 = "/^([{$tc}]+)(?:\\|([^]]+))?]](.*)\$/sD"; }
                # Match the end of a line for a word that's not followed by whitespace,
                # e.g. in the case of 'The Arab al[[Razi]]', 'al' will be matched
-               #$e2 = "/^(.*)\\b(\\w+)\$/suD";
-               #$e2 = "/^(.*\\s)(\\S+)\$/suD";
-               static $e2 = '/^(.*\s)([a-zA-Z\x80-\xff]+)$/sD';
-
+               static $e2 = '/^(.*?)([a-zA-Z\x80-\xff]+)$/sD';
 
+               $useLinkPrefixExtension = $wgLang->linkPrefixExtension();
                # Special and Media are pseudo-namespaces; no pages actually exist in them
-               static $image = FALSE;
-               static $special = FALSE;
-               static $media = FALSE;
-               static $category = FALSE;
-               if ( !$image ) { $image = Namespace::getImage(); }
-               if ( !$special ) { $special = Namespace::getSpecial(); }
-               if ( !$media ) { $media = Namespace::getMedia(); }
-               if ( !$category ) { $category = Namespace::getCategory(); }
 
                $nottalk = !Namespace::isTalk( $this->mTitle->getNamespace() );
 
-               if ( $wgLang->linkPrefixExtension() && preg_match( $e2, $s, $m ) ) {
-                       $new_prefix = $m[2];
-                       $s = $m[1];
+               if ( $useLinkPrefixExtension ) {
+                       if ( preg_match( $e2, $s, $m ) ) {
+                               $first_prefix = $m[2];
+                               $s = $m[1];
+                       } else {
+                               $first_prefix = false;
+                       }
                } else {
-                       $new_prefix="";
+                       $prefix = '';
                }
 
-               wfProfileOut( "$fname-setup" );
+               wfProfileOut( $fname.'-setup' );
 
                foreach ( $a as $line ) {
-                       $prefix = $new_prefix;
+                       wfProfileIn( $fname.'-prefixhandling' );
+                       if ( $useLinkPrefixExtension ) {
+                               if ( preg_match( $e2, $s, $m ) ) {
+                                       $prefix = $m[2];
+                                       $s = $m[1];
+                               } else {
+                                       $prefix='';
+                               }
+                               # first link
+                               if($first_prefix) {
+                                       $prefix = $first_prefix;
+                                       $first_prefix = false;
+                               }
+                       }
+                       wfProfileOut( $fname.'-prefixhandling' );
 
                        if ( preg_match( $e1, $line, $m ) ) { # page with normal text or alt
                                $text = $m[2];
                                # fix up urlencoded title texts
-                               if(preg_match("/%/", $m[1] )) $m[1] = urldecode($m[1]);
+                               if(preg_match('/%/', $m[1] )) $m[1] = urldecode($m[1]);
                                $trail = $m[3];
                        } else { # Invalid form; output directly
-                               $s .= $prefix . "[[" . $line ;
-                               wfProfileOut( $fname );
+                               $s .= $prefix . '[[' . $line ;
                                continue;
                        }
 
@@ -829,17 +1283,17 @@ class Parser
                        /Foobar/ -- convert to CurrentPage/Foobar, strip the initial / from text
                        */
                        $c = substr($m[1],0,1);
-                       $noforce = ($c != ":");
-                       if( $c == "/" ) { # subpage
-                               if(substr($m[1],-1,1)=="/") {                 # / at end means we don't want the slash to be shown
+                       $noforce = ($c != ':');
+                       if( $c == '/' ) { # subpage
+                               if(substr($m[1],-1,1)=='/') {                 # / at end means we don't want the slash to be shown
                                        $m[1]=substr($m[1],1,strlen($m[1])-2);
                                        $noslash=$m[1];
                                } else {
                                        $noslash=substr($m[1],1);
                                }
                                if(!empty($wgNamespacesWithSubpages[$this->mTitle->getNamespace()])) { # subpages allowed here
-                                       $link = $this->mTitle->getPrefixedText(). "/" . trim($noslash);
-                                       if( "" == $text ) {
+                                       $link = $this->mTitle->getPrefixedText(). '/' . trim($noslash);
+                                       if( '' == $text ) {
                                                $text= $m[1];
                                        } # this might be changed for ugliness reasons
                                } else {
@@ -850,67 +1304,63 @@ class Parser
                        } else {
                                $link = substr( $m[1], 1 );
                        }
-                       $wasblank = ( "" == $text );
+                       $wasblank = ( '' == $text );
                        if( $wasblank )
                        $text = $link;
 
                        $nt = Title::newFromText( $link );
                        if( !$nt ) {
-                               $s .= $prefix . "[[" . $line;
-                               wfProfileOut( $fname );
+                               $s .= $prefix . '[[' . $line;
                                continue;
                        }
                        $ns = $nt->getNamespace();
                        $iw = $nt->getInterWiki();
                        if( $noforce ) {
                                if( $iw && $this->mOptions->getInterwikiMagic() && $nottalk && $wgLang->getLanguageName( $iw ) ) {
-                                       array_push( $this->mOutput->mLanguageLinks, $nt->getPrefixedText() );
-                                       $s .= $prefix . $trail ;
-                                       wfProfileOut( $fname );
-                                       $s .= (trim($s) == '')? '': $s;
+                                       array_push( $this->mOutput->mLanguageLinks, $nt->getFullText() );
+                                       $tmp = $prefix . $trail ;
+                                       $s .= (trim($tmp) == '')? '': $tmp;
                                        continue;
                                }
-                               if ( $ns == $image ) {
+                               if ( $ns == NS_IMAGE ) {
                                        $s .= $prefix . $sk->makeImageLinkObj( $nt, $text ) . $trail;
                                        $wgLinkCache->addImageLinkObj( $nt );
-                                       wfProfileOut( $fname );
                                        continue;
                                }
-                               if ( $ns == $category ) {
+                               if ( $ns == NS_CATEGORY ) {
                                        $t = $nt->getText() ;
-                                       $nnt = Title::newFromText ( Namespace::getCanonicalName($category).":".$t ) ;
+                                       $nnt = Title::newFromText ( Namespace::getCanonicalName(NS_CATEGORY).":".$t ) ;
 
                                        $wgLinkCache->suspend(); # Don't save in links/brokenlinks
-                                       $t = $sk->makeLinkObj( $nnt, $t, "", "" , $prefix );
+                                       $pPLC=$sk->postParseLinkColour();
+                                       $sk->postParseLinkColour( false );
+                                       $t = $sk->makeLinkObj( $nnt, $t, '', '' , $prefix );
+                                       $sk->postParseLinkColour( $pPLC );
                                        $wgLinkCache->resume();
 
                                        $sortkey = $wasblank ? $this->mTitle->getPrefixedText() : $text;
                                        $wgLinkCache->addCategoryLinkObj( $nt, $sortkey );
                                        $this->mOutput->mCategoryLinks[] = $t ;
                                        $s .= $prefix . $trail ;
-                                       wfProfileOut( $fname );
                                        continue;
                                }
                        }
                        if( ( $nt->getPrefixedText() == $this->mTitle->getPrefixedText() ) &&
-                       ( strpos( $link, "#" ) == FALSE ) ) {
+                       ( strpos( $link, '#' ) == FALSE ) ) {
                                # Self-links are handled specially; generally de-link and change to bold.
-                               $s .= $prefix . $sk->makeSelfLinkObj( $nt, $text, "", $trail );
-                               wfProfileOut( $fname );
+                               $s .= $prefix . $sk->makeSelfLinkObj( $nt, $text, '', $trail );
                                continue;
                        }
 
-                       if( $ns == $media ) {
+                       if( $ns == NS_MEDIA ) {
                                $s .= $prefix . $sk->makeMediaLinkObj( $nt, $text ) . $trail;
                                $wgLinkCache->addImageLinkObj( $nt );
-                               wfProfileOut( $fname );
-                               continue;
-                       } elseif( $ns == $special ) {
-                               $s .= $prefix . $sk->makeKnownLinkObj( $nt, $text, "", $trail );
-                               wfProfileOut( $fname );
+                               continue;
+                       } elseif( $ns == NS_SPECIAL ) {
+                               $s .= $prefix . $sk->makeKnownLinkObj( $nt, $text, '', $trail );
                                continue;
                        }
-                       $s .= $sk->makeLinkObj( $nt, $text, "", $trail , $prefix );
+                       $s .= $sk->makeLinkObj( $nt, $text, '', $trail, $prefix );
                }
                wfProfileOut( $fname );
                return $s;
@@ -918,21 +1368,19 @@ class Parser
 
        # Some functions here used by doBlockLevels()
        #
-       /* private */ function closeParagraph()
-       {
-               $result = "";
+       /* private */ function closeParagraph() {
+               $result = '';
                if ( '' != $this->mLastSection ) {
-                       $result = "</" . $this->mLastSection  . ">\n";
+                       $result = '</' . $this->mLastSection  . ">\n";
                }
                $this->mInPre = false;
-               $this->mLastSection = "";
+               $this->mLastSection = '';
                return $result;
        }
        # getCommon() returns the length of the longest common substring
        # of both arguments, starting at the beginning of both.
        #
-       /* private */ function getCommon( $st1, $st2 )
-       {
+       /* private */ function getCommon( $st1, $st2 ) {
                $fl = strlen( $st1 );
                $shorter = strlen( $st2 );
                if ( $fl < $shorter ) { $shorter = $fl; }
@@ -949,55 +1397,53 @@ class Parser
     {
                $result = $this->closeParagraph();
 
-               if ( "*" == $char ) { $result .= "<ul><li>"; }
-               else if ( "#" == $char ) { $result .= "<ol><li>"; }
-               else if ( ":" == $char ) { $result .= "<dl><dd>"; }
-               else if ( ";" == $char ) {
-                       $result .= "<dl><dt>";
+               if ( '*' == $char ) { $result .= '<ul><li>'; }
+               else if ( '#' == $char ) { $result .= '<ol><li>'; }
+               else if ( ':' == $char ) { $result .= '<dl><dd>'; }
+               else if ( ';' == $char ) {
+                       $result .= '<dl><dt>';
                        $this->mDTopen = true;
                }
-               else { $result = "<!-- ERR 1 -->"; }
+               else { $result = '<!-- ERR 1 -->'; }
 
                return $result;
        }
 
-       /* private */ function nextItem( $char )
-       {
-               if ( "*" == $char || "#" == $char ) { return "</li><li>"; }
-               else if ( ":" == $char || ";" == $char ) {
+       /* private */ function nextItem( $char ) {
+               if ( '*' == $char || '#' == $char ) { return '</li><li>'; }
+               else if ( ':' == $char || ';' == $char ) {
                        $close = "</dd>";
-                       if ( $this->mDTopen ) { $close = "</dt>"; }
-                       if ( ";" == $char ) {
+                       if ( $this->mDTopen ) { $close = '</dt>'; }
+                       if ( ';' == $char ) {
                                $this->mDTopen = true;
-                               return $close . "<dt>";
+                               return $close . '<dt>';
                        } else {
                                $this->mDTopen = false;
-                               return $close . "<dd>";
+                               return $close . '<dd>';
                        }
                }
-               return "<!-- ERR 2 -->";
+               return '<!-- ERR 2 -->';
        }
 
-       /* private */function closeList( $char )
-       {
-               if ( "*" == $char ) { $text = "</li></ul>"; }
-               else if ( "#" == $char ) { $text = "</li></ol>"; }
-               else if ( ":" == $char ) {
+       /* private */function closeList( $char ) {
+               if ( '*' == $char ) { $text = '</li></ul>'; }
+               else if ( '#' == $char ) { $text = '</li></ol>'; }
+               else if ( ':' == $char ) {
                        if ( $this->mDTopen ) {
                                $this->mDTopen = false;
-                               $text = "</dt></dl>";
+                               $text = '</dt></dl>';
                        } else {
-                               $text = "</dd></dl>";
+                               $text = '</dd></dl>';
                        }
                }
-               else {  return "<!-- ERR 3 -->"; }
+               else {  return '<!-- ERR 3 -->'; }
                return $text."\n";
        }
 
        /* private */ function doBlockLevels( $text, $linestart ) {
-               $fname = "Parser::doBlockLevels";
+               $fname = 'Parser::doBlockLevels';
                wfProfileIn( $fname );
-               
+
                # Parsing through the text line by line.  The main thing
                # happening here is handling of block-level elements p, pre,
                # and making lists from lines starting with * # : etc.
@@ -1016,17 +1462,15 @@ class Parser
                        $lastPrefixLength = strlen( $lastPrefix );
                        $preCloseMatch = preg_match("/<\\/pre/i", $oLine );
                        $preOpenMatch = preg_match("/<pre/i", $oLine );
-                       if (!$this->mInPre) {
-                               $this->mInPre = !empty($preOpenMatch);
-                       }
                        if ( !$this->mInPre ) {
                                # Multiple prefixes may abut each other for nested lists.
-                               $prefixLength = strspn( $oLine, "*#:;" );
+                               $prefixLength = strspn( $oLine, '*#:;' );
                                $pref = substr( $oLine, 0, $prefixLength );
-                               
+
                                # eh?
-                               $pref2 = str_replace( ";", ":", $pref );
+                               $pref2 = str_replace( ';', ':', $pref );
                                $t = substr( $oLine, $prefixLength );
+                               $this->mInPre = !empty($preOpenMatch);
                        } else {
                                # Don't interpret any other prefixes in preformatted text
                                $prefixLength = 0;
@@ -1048,7 +1492,7 @@ class Parser
                                        # FIXME: This is not foolproof. Something better in Tokenizer might help.
                                        if( preg_match( '/^(.*?(?:\s|&nbsp;)):(.*)$/', $t, $match ) ) {
                                                $term = $match[1];
-                                               $output .= $term . $this->nextItem( ":" );
+                                               $output .= $term . $this->nextItem( ':' );
                                                $t = $match[2];
                                        }
                                }
@@ -1068,7 +1512,7 @@ class Parser
                                        $char = substr( $pref, $commonPrefixLength, 1 );
                                        $output .= $this->openList( $char );
 
-                                       if ( ";" == $char ) {
+                                       if ( ';' == $char ) {
                                                # FIXME: This is dupe of code above
                                                if( preg_match( '/^(.*?(?:\s|&nbsp;)):(.*)$/', $t, $match ) ) {
                                                        $term = $match[1];
@@ -1084,15 +1528,15 @@ class Parser
                                # No prefix (not in list)--go to paragraph mode
                                $uniq_prefix = UNIQ_PREFIX;
                                // XXX: use a stack for nestable elements like span, table and div
-                               $openmatch = preg_match("/(<table|<blockquote|<h1|<h2|<h3|<h4|<h5|<h6|<pre|<tr|<td|<p|<ul|<li)/i", $t );
+                               $openmatch = preg_match('/(<table|<blockquote|<h1|<h2|<h3|<h4|<h5|<h6|<pre|<tr|<p|<ul|<li|<\\/tr|<\\/td|<\\/th)/i', $t );
                                $closematch = preg_match(
-                                       "/(<\\/table|<\\/blockquote|<\\/h1|<\\/h2|<\\/h3|<\\/h4|<\\/h5|<\\/h6|".
-                                       "<div|<\\/div|<hr|<\\/td|<\\/pre|<\\/p|".$uniq_prefix."-pre|<\\/li|<\\/ul)/i", $t );
+                                       '/(<\\/table|<\\/blockquote|<\\/h1|<\\/h2|<\\/h3|<\\/h4|<\\/h5|<\\/h6|'.
+                                       '<td|<th|<div|<\\/div|<hr|<\\/pre|<\\/p|'.$uniq_prefix.'-pre|<\\/li|<\\/ul)/i', $t );
                                if ( $openmatch or $closematch ) {
                                        $paragraphStack = false;
                                        $output .= $this->closeParagraph();
                                        if($preOpenMatch and !$preCloseMatch) {
-                                               $this->mInPre = true;   
+                                               $this->mInPre = true;
                                        }
                                        if ( $closematch  ) {
                                                $inBlockElem = false;
@@ -1100,7 +1544,7 @@ class Parser
                                                $inBlockElem = true;
                                        }
                                } else if ( !$inBlockElem && !$this->mInPre ) {
-                                       if ( " " == $t{0} and trim($t) != '' ) {
+                                       if ( " " == $t{0} and ( $this->mLastSection == 'pre' or trim($t) != '' ) ) {
                                                // pre
                                                if ($this->mLastSection != 'pre') {
                                                        $paragraphStack = false;
@@ -1111,14 +1555,14 @@ class Parser
                                                // paragraph
                                                if ( '' == trim($t) ) {
                                                        if ( $paragraphStack ) {
-                                                               $output .= $paragraphStack.'<br/>';
+                                                               $output .= $paragraphStack.'<br />';
                                                                $paragraphStack = false;
                                                                $this->mLastSection = 'p';
                                                        } else {
                                                                if ($this->mLastSection != 'p' ) {
                                                                        $output .= $this->closeParagraph();
                                                                        $this->mLastSection = '';
-                                                                       $paragraphStack = "<p>";
+                                                                       $paragraphStack = '<p>';
                                                                } else {
                                                                        $paragraphStack = '</p><p>';
                                                                }
@@ -1144,40 +1588,41 @@ class Parser
                        $output .= $this->closeList( $pref2{$prefixLength-1} );
                        --$prefixLength;
                }
-               if ( "" != $this->mLastSection ) {
-                       $output .= "</" . $this->mLastSection . ">";
-                       $this->mLastSection = "";
+               if ( '' != $this->mLastSection ) {
+                       $output .= '</' . $this->mLastSection . '>';
+                       $this->mLastSection = '';
                }
 
                wfProfileOut( $fname );
                return $output;
        }
 
+       # Return value of a magic variable (like PAGENAME)
        function getVariableValue( $index ) {
                global $wgLang, $wgSitename, $wgServer;
 
                switch ( $index ) {
                        case MAG_CURRENTMONTH:
-                               return date( "m" );
+                               return $wgLang->formatNum( date( 'm' ) );
                        case MAG_CURRENTMONTHNAME:
-                               return $wgLang->getMonthName( date("n") );
+                               return $wgLang->getMonthName( date('n') );
                        case MAG_CURRENTMONTHNAMEGEN:
-                               return $wgLang->getMonthNameGen( date("n") );
+                               return $wgLang->getMonthNameGen( date('n') );
                        case MAG_CURRENTDAY:
-                               return date("j");
+                               return $wgLang->formatNum( date('j') );
                        case MAG_PAGENAME:
                                return $this->mTitle->getText();
                        case MAG_NAMESPACE:
                                # return Namespace::getCanonicalName($this->mTitle->getNamespace());
                                return $wgLang->getNsText($this->mTitle->getNamespace()); // Patch  by Dori
                        case MAG_CURRENTDAYNAME:
-                               return $wgLang->getWeekdayName( date("w")+1 );
+                               return $wgLang->getWeekdayName( date('w')+1 );
                        case MAG_CURRENTYEAR:
-                               return date( "Y" );
+                               return $wgLang->formatNum( date( 'Y' ) );
                        case MAG_CURRENTTIME:
                                return $wgLang->time( wfTimestampNow(), false );
                        case MAG_NUMBEROFARTICLES:
-                               return wfNumberOfArticles();
+                               return $wgLang->formatNum( wfNumberOfArticles() );
                        case MAG_SITENAME:
                                return $wgSitename;
                        case MAG_SERVER:
@@ -1187,8 +1632,8 @@ class Parser
                }
        }
 
-       function initialiseVariables()
-       {
+       # initialise the magic variables (like CURRENTMONTHNAME)
+       function initialiseVariables() {
                global $wgVariableIDs;
                $this->mVariables = array();
                foreach ( $wgVariableIDs as $id ) {
@@ -1197,18 +1642,19 @@ class Parser
                }
        }
 
-       /* private */ function replaceVariables( $text, $args = array() )
-       {
+       /* private */ function replaceVariables( $text, $args = array() ) {
                global $wgLang, $wgScript, $wgArticlePath;
 
-               $fname = "Parser::replaceVariables";
+                # Prevent too big inclusions
+                if(strlen($text)> MAX_INCLUDE_SIZE)
+                   return $text;
+
+               $fname = 'Parser::replaceVariables';
                wfProfileIn( $fname );
 
                $bail = false;
-               if ( !$this->mVariables ) {
-                       $this->initialiseVariables();
-               }
                $titleChars = Title::legalChars();
+               $nonBraceChars = str_replace( array( '{', '}' ), array( '', '' ), $titleChars );
 
                # This function is called recursively. To keep track of arguments we need a stack:
                array_push( $this->mArgStack, $args );
@@ -1216,13 +1662,17 @@ class Parser
                # PHP global rebinding syntax is a bit weird, need to use the GLOBALS array
                $GLOBALS['wgCurParser'] =& $this;
 
-               # Argument substitution
+
                if ( $this->mOutputType == OT_HTML ) {
-                       $text = preg_replace_callback( "/(\\n?){{{([$titleChars]*?)}}}/", "wfArgSubstitution", $text );
+                       # Variable substitution
+                       $text = preg_replace_callback( "/{{([$nonBraceChars]*?)}}/", 'wfVariableSubstitution', $text );
+
+                       # Argument substitution
+                       $text = preg_replace_callback( "/(\\n?){{{([$titleChars]*?)}}}/", 'wfArgSubstitution', $text );
                }
-               # Double brace substitution
-               $regex = "/(\\n?){{([$titleChars]*)(\\|.*?|)}}/s";
-               $text = preg_replace_callback( $regex, "wfBraceSubstitution", $text );
+               # Template substitution
+               $regex = '/(\\n?){{(['.$nonBraceChars.']*)(\\|.*?|)}}/s';
+               $text = preg_replace_callback( $regex, 'wfBraceSubstitution', $text );
 
                array_pop( $this->mArgStack );
 
@@ -1230,14 +1680,51 @@ class Parser
                return $text;
        }
 
-       function braceSubstitution( $matches )
-       {
+       function variableSubstitution( $matches ) {
+               if ( !$this->mVariables ) {
+                       $this->initialiseVariables();
+               }
+               if ( array_key_exists( $matches[1], $this->mVariables ) ) {
+                       $text = $this->mVariables[$matches[1]];
+                       $this->mOutput->mContainsOldMagic = true;
+               } else {
+                       $text = $matches[0];
+               }
+               return $text;
+       }
+
+       # Split template arguments
+       function getTemplateArgs( $argsString ) {
+               if ( $argsString === '' ) {
+                       return array();
+               }
+
+               $args = explode( '|', substr( $argsString, 1 ) );
+
+               # If any of the arguments contains a '[[' but no ']]', it needs to be
+               # merged with the next arg because the '|' character between belongs
+               # to the link syntax and not the template parameter syntax.
+               $argc = count($args);
+               $i = 0;
+               for ( $i = 0; $i < $argc-1; $i++ ) {
+                       if ( substr_count ( $args[$i], "[[" ) != substr_count ( $args[$i], "]]" ) ) {
+                               $args[$i] .= "|".$args[$i+1];
+                               array_splice($args, $i+1, 1);
+                               $i--;
+                               $argc--;
+                       }
+               }
+
+               return $args;
+       }
+
+       function braceSubstitution( $matches ) {
                global $wgLinkCache, $wgLang;
-               $fname = "Parser::braceSubstitution";
+               $fname = 'Parser::braceSubstitution';
                $found = false;
                $nowiki = false;
                $noparse = false;
-               
+
                $title = NULL;
 
                # $newline is an optional newline character before the braces
@@ -1247,15 +1734,12 @@ class Parser
                $newline = $matches[1];
                $part1 = $matches[2];
                # If the third subpattern matched anything, it will start with |
-               if ( $matches[3] !== "" ) {
-                       $args = explode( "|", substr( $matches[3], 1 ) );
-               } else {
-                       $args = array();
-               }
+
+               $args = $this->getTemplateArgs($matches[3]);
                $argc = count( $args );
-       
+
                # {{{}}}
-               if ( strpos( $matches[0], "{{{" ) !== false ) {
+               if ( strpos( $matches[0], '{{{' ) !== false ) {
                        $text = $matches[0];
                        $found = true;
                        $noparse = true;
@@ -1294,7 +1778,7 @@ class Parser
                        # Check if it is an internal message
                        $mwInt =& MagicWord::get( MAG_INT );
                        if ( $mwInt->matchStartAndRemove( $part1 ) ) {
-                               if ( $this->incrementIncludeCount( "int:$part1" ) ) {
+                               if ( $this->incrementIncludeCount( 'int:'.$part1 ) ) {
                                        $text = wfMsgReal( $part1, $args, true );
                                        $found = true;
                                }
@@ -1346,19 +1830,30 @@ class Parser
                }
 
                # Internal variables
+               if ( !$this->mVariables ) {
+                       $this->initialiseVariables();
+               }
                if ( !$found && array_key_exists( $part1, $this->mVariables ) ) {
                        $text = $this->mVariables[$part1];
                        $found = true;
                        $this->mOutput->mContainsOldMagic = true;
                }
-/*
-               # Arguments input from the caller
-               $inputArgs = end( $this->mArgStack );
-               if ( !$found && array_key_exists( $part1, $inputArgs ) ) {
-                       $text = $inputArgs[$part1];
+
+                # Template table test
+
+               # Did we encounter this template already? If yes, it is in the cache
+               # and we need to check for loops.
+               if ( isset( $this->mTemplates[$part1] ) ) {
+                       # Infinite loop test
+                       if ( isset( $this->mTemplatePath[$part1] ) ) {
+                               $noparse = true;
+                               $found = true;
+                       }
+                       # set $text to cached message.
+                       $text = $this->mTemplates[$part1];
                        $found = true;
                }
-*/
+
                # Load from database
                if ( !$found ) {
                        $title = Title::newFromText( $part1, NS_TEMPLATE );
@@ -1366,6 +1861,7 @@ class Parser
                                # Check for excessive inclusion
                                $dbk = $title->getPrefixedDBkey();
                                if ( $this->incrementIncludeCount( $dbk ) ) {
+                                       # This should never be reached.
                                        $article = new Article( $title );
                                        $articleContent = $article->getContentWithoutUsingSoManyDamnGlobals();
                                        if ( $articleContent !== false ) {
@@ -1377,9 +1873,12 @@ class Parser
 
                                # If the title is valid but undisplayable, make a link to it
                                if ( $this->mOutputType == OT_HTML && !$found ) {
-                                       $text = "[[" . $title->getPrefixedText() . "]]";
+                                       $text = '[[' . $title->getPrefixedText() . ']]';
                                        $found = true;
                                }
+
+                                # Template cache array insertion
+                               $this->mTemplates[$part1] = $text;
                        }
                }
 
@@ -1392,14 +1891,14 @@ class Parser
                        $assocArgs = array();
                        $index = 1;
                        foreach( $args as $arg ) {
-                               $eqpos = strpos( $arg, "=" );
+                               $eqpos = strpos( $arg, '=' );
                                if ( $eqpos === false ) {
                                        $assocArgs[$index++] = $arg;
                                } else {
                                        $name = trim( substr( $arg, 0, $eqpos ) );
                                        $value = trim( substr( $arg, $eqpos+1 ) );
                                        if ( $value === false ) {
-                                               $value = "";
+                                               $value = '';
                                        }
                                        if ( $name !== false ) {
                                                $assocArgs[$name] = $value;
@@ -1412,8 +1911,10 @@ class Parser
                                $wgLinkCache->suspend();
                        }
 
-                       # Run full parser on the included text
-                       $text = $this->stripParse( $text, (bool)$newline, $assocArgs );
+                        # Add a new element to the templace recursion path
+                       $this->mTemplatePath[$part1] = 1;
+
+                       $text = $this->stripParse( $text, $newline, $assocArgs );
 
                        # Resume the link cache and register the inclusion as a link
                        if ( !is_null( $title ) ) {
@@ -1421,6 +1922,8 @@ class Parser
                                $wgLinkCache->addLinkObj( $title );
                        }
                }
+                # Empties the template path
+                $this->mTemplatePath = array();
 
                if ( !$found ) {
                        return $matches[0];
@@ -1430,23 +1933,21 @@ class Parser
        }
 
        # Triple brace replacement -- used for template arguments
-       function argSubstitution( $matches )
-       {
+       function argSubstitution( $matches ) {
                $newline = $matches[1];
                $arg = trim( $matches[2] );
                $text = $matches[0];
                $inputArgs = end( $this->mArgStack );
 
                if ( array_key_exists( $arg, $inputArgs ) ) {
-                       $text = $this->stripParse( $inputArgs[$arg], (bool)$newline, array() );
+                       $text = $this->stripParse( $inputArgs[$arg], $newline, array() );
                }
-               
+
                return $text;
        }
 
        # Returns true if the function is allowed to include this entity
-       function incrementIncludeCount( $dbk )
-       {
+       function incrementIncludeCount( $dbk ) {
                if ( !array_key_exists( $dbk, $this->mIncludeCount ) ) {
                        $this->mIncludeCount[$dbk] = 0;
                }
@@ -1459,29 +1960,28 @@ class Parser
 
 
        # Cleans up HTML, removes dangerous tags and attributes
-       /* private */ function removeHTMLtags( $text )
-       {
+       /* private */ function removeHTMLtags( $text ) {
                global $wgUseTidy, $wgUserHtml;
-               $fname = "Parser::removeHTMLtags";
+               $fname = 'Parser::removeHTMLtags';
                wfProfileIn( $fname );
-               
+
                if( $wgUserHtml ) {
                        $htmlpairs = array( # Tags that must be closed
-                               "b", "del", "i", "ins", "u", "font", "big", "small", "sub", "sup", "h1",
-                               "h2", "h3", "h4", "h5", "h6", "cite", "code", "em", "s",
-                               "strike", "strong", "tt", "var", "div", "center",
-                               "blockquote", "ol", "ul", "dl", "table", "caption", "pre",
-                               "ruby", "rt" , "rb" , "rp", "p"
+                               'b', 'del', 'i', 'ins', 'u', 'font', 'big', 'small', 'sub', 'sup', 'h1',
+                               'h2', 'h3', 'h4', 'h5', 'h6', 'cite', 'code', 'em', 's',
+                               'strike', 'strong', 'tt', 'var', 'div', 'center',
+                               'blockquote', 'ol', 'ul', 'dl', 'table', 'caption', 'pre',
+                               'ruby', 'rt' , 'rb' , 'rp', 'p'
                        );
                        $htmlsingle = array(
-                               "br", "hr", "li", "dt", "dd"
+                               'br', 'hr', 'li', 'dt', 'dd'
                        );
                        $htmlnest = array( # Tags that can be nested--??
-                               "table", "tr", "td", "th", "div", "blockquote", "ol", "ul",
-                               "dl", "font", "big", "small", "sub", "sup"
+                               'table', 'tr', 'td', 'th', 'div', 'blockquote', 'ol', 'ul',
+                               'dl', 'font', 'big', 'small', 'sub', 'sup'
                        );
                        $tabletags = array( # Can only appear inside table
-                               "td", "th", "tr"
+                               'td', 'th', 'tr'
                        );
                } else {
                        $htmlpairs = array();
@@ -1496,15 +1996,15 @@ class Parser
                $htmlattrs = $this->getHTMLattrs () ;
 
                # Remove HTML comments
-               $text = preg_replace( "/(\\n *<!--.*--> *(?=\\n)|<!--.*-->)/sU", "$2", $text );
+               $text = preg_replace( '/(\\n *<!--.*--> *(?=\\n)|<!--.*-->)/sU', '$2', $text );
 
-               $bits = explode( "<", $text );
+               $bits = explode( '<', $text );
                $text = array_shift( $bits );
                if(!$wgUseTidy) {
                        $tagstack = array(); $tablestack = array();
                        foreach ( $bits as $x ) {
                                $prev = error_reporting( E_ALL & ~( E_NOTICE | E_WARNING ) );
-                               preg_match( "/^(\\/?)(\\w+)([^>]*)(\\/{0,1}>)([^<]*)$/",
+                               preg_match( '/^(\\/?)(\\w+)([^>]*)(\\/{0,1}>)([^<]*)$/',
                                $x, $regs );
                                list( $qbar, $slash, $t, $params, $brace, $rest ) = $regs;
                                error_reporting( $prev );
@@ -1515,25 +2015,25 @@ class Parser
                                        if ( $slash ) {
                                                # Closing a tag...
                                                if ( ! in_array( $t, $htmlsingle ) &&
-                                               ( count($tagstack) && $ot = array_pop( $tagstack ) ) != $t ) {
-                                                       if(!empty($ot)) array_push( $tagstack, $ot );
+                                               ( $ot = @array_pop( $tagstack ) ) != $t ) {
+                                                       @array_push( $tagstack, $ot );
                                                        $badtag = 1;
                                                } else {
-                                                       if ( $t == "table" ) {
+                                                       if ( $t == 'table' ) {
                                                                $tagstack = array_pop( $tablestack );
                                                        }
-                                                       $newparams = "";
+                                                       $newparams = '';
                                                }
                                        } else {
                                                # Keep track for later
                                                if ( in_array( $t, $tabletags ) &&
-                                               ! in_array( "table", $tagstack ) ) {
+                                               ! in_array( 'table', $tagstack ) ) {
                                                        $badtag = 1;
                                                } else if ( in_array( $t, $tagstack ) &&
                                                ! in_array ( $t , $htmlnest ) ) {
                                                        $badtag = 1 ;
                                                } else if ( ! in_array( $t, $htmlsingle ) ) {
-                                                       if ( $t == "table" ) {
+                                                       if ( $t == 'table' ) {
                                                                array_push( $tablestack, $tagstack );
                                                                $tagstack = array();
                                                        }
@@ -1544,32 +2044,32 @@ class Parser
 
                                        }
                                        if ( ! $badtag ) {
-                                               $rest = str_replace( ">", "&gt;", $rest );
+                                               $rest = str_replace( '>', '&gt;', $rest );
                                                $text .= "<$slash$t $newparams$brace$rest";
                                                continue;
                                        }
                                }
-                               $text .= "&lt;" . str_replace( ">", "&gt;", $x);
+                               $text .= '&lt;' . str_replace( '>', '&gt;', $x);
                        }
                        # Close off any remaining tags
-                       while ( $t = array_pop( $tagstack ) ) {
+                       while ( is_array( $tagstack ) && ($t = array_pop( $tagstack )) ) {
                                $text .= "</$t>\n";
-                               if ( $t == "table" ) { $tagstack = array_pop( $tablestack ); }
+                               if ( $t == 'table' ) { $tagstack = array_pop( $tablestack ); }
                        }
                } else {
                        # this might be possible using tidy itself
                        foreach ( $bits as $x ) {
-                               preg_match( "/^(\\/?)(\\w+)([^>]*)(\\/{0,1}>)([^<]*)$/",
+                               preg_match( '/^(\\/?)(\\w+)([^>]*)(\\/{0,1}>)([^<]*)$/',
                                $x, $regs );
                                @list( $qbar, $slash, $t, $params, $brace, $rest ) = $regs;
                                if ( in_array( $t = strtolower( $t ), $htmlelements ) ) {
                                        $newparams = $this->fixTagAttributes($params);
-                                       $rest = str_replace( ">", "&gt;", $rest );
+                                       $rest = str_replace( '>', '&gt;', $rest );
                                        $text .= "<$slash$t $newparams$brace$rest";
                                } else {
-                                       $text .= "&lt;" . str_replace( ">", "&gt;", $x);
+                                       $text .= '&lt;' . str_replace( '>', '&gt;', $x);
                                }
-                       }       
+                       }
                }
                wfProfileOut( $fname );
                return $text;
@@ -1589,12 +2089,12 @@ class Parser
  *
  */
 
-       /* private */ function formatHeadings( $text, $isMain=true )
-       {
-               global $wgInputEncoding;
-               
+       /* private */ function formatHeadings( $text, $isMain=true ) {
+               global $wgInputEncoding, $wgMaxTocLevel;
+
                $doNumberHeadings = $this->mOptions->getNumberHeadings();
                $doShowToc = $this->mOptions->getShowToc();
+               $forceTocHere = false;
                if( !$this->mTitle->userCanEdit() ) {
                        $showEditLink = 0;
                        $rightClickHack = 0;
@@ -1617,27 +2117,36 @@ class Parser
 
                # never add the TOC to the Main Page. This is an entry page that should not
                # be more than 1-2 screens large anyway
-               if( $this->mTitle->getPrefixedText() == wfMsg("mainpage") ) {
+               if( $this->mTitle->getPrefixedText() == wfMsg('mainpage') ) {
                        $doShowToc = 0;
                }
 
                # Get all headlines for numbering them and adding funky stuff like [edit]
                # links - this is for later, but we need the number of headlines right now
-               $numMatches = preg_match_all( "/<H([1-6])(.*?" . ">)(.*?)<\/H[1-6]>/i", $text, $matches );
+               $numMatches = preg_match_all( '/<H([1-6])(.*?' . '>)(.*?)<\/H[1-6]>/i', $text, $matches );
 
                # if there are fewer than 4 headlines in the article, do not show TOC
                if( $numMatches < 4 ) {
                        $doShowToc = 0;
                }
 
-               # if the string __FORCETOC__ (not case-sensitive) occurs in the HTML,
-               # override above conditions and always show TOC
-               $mw =& MagicWord::get( MAG_FORCETOC );
-               if ($mw->matchAndRemove( $text ) ) {
+               # if the string __TOC__ (not case-sensitive) occurs in the HTML,
+               # override above conditions and always show TOC at that place
+               $mw =& MagicWord::get( MAG_TOC );
+               if ($mw->match( $text ) ) {
                        $doShowToc = 1;
+                       $forceTocHere = true;
+               } else {
+                       # if the string __FORCETOC__ (not case-sensitive) occurs in the HTML,
+                       # override above conditions and always show TOC above first header
+                       $mw =& MagicWord::get( MAG_FORCETOC );
+                       if ($mw->matchAndRemove( $text ) ) {
+                               $doShowToc = 1;
+                       }
                }
 
 
+
                # We need this to perform operations on the HTML
                $sk =& $this->mOptions->getSkin();
 
@@ -1647,14 +2156,14 @@ class Parser
                # Ugh .. the TOC should have neat indentation levels which can be
                # passed to the skin functions. These are determined here
                $toclevel = 0;
-               $toc = "";
-               $full = "";
+               $toc = '';
+               $full = '';
                $head = array();
                $sublevelCount = array();
                $level = 0;
                $prevlevel = 0;
                foreach( $matches[3] as $headline ) {
-                       $numbering = "";
+                       $numbering = '';
                        if( $level ) {
                                $prevlevel = $level;
                        }
@@ -1678,7 +2187,7 @@ class Parser
                                for( $i = 1; $i <= $level; $i++ ) {
                                        if( !empty( $sublevelCount[$i] ) ) {
                                                if( $dot ) {
-                                                       $numbering .= ".";
+                                                       $numbering .= '.';
                                                }
                                                $numbering .= $sublevelCount[$i];
                                                $dot = 1;
@@ -1689,13 +2198,17 @@ class Parser
                        # The canonized header is a version of the header text safe to use for links
                        # Avoid insertion of weird stuff like <math> by expanding the relevant sections
                        $canonized_headline = $this->unstrip( $headline, $this->mStripState );
+                       $canonized_headline = $this->unstripNoWiki( $headline, $this->mStripState );
 
                        # strip out HTML
-                       $canonized_headline = preg_replace( "/<.*?" . ">/","",$canonized_headline );
+                       $canonized_headline = preg_replace( '/<.*?' . '>/','',$canonized_headline );
                        $tocline = trim( $canonized_headline );
-                       $canonized_headline = preg_replace("/[ \\?&\\/<>\\(\\)\\[\\]=,+']+/", '_', urlencode( do_html_entity_decode( $tocline, ENT_COMPAT, $wgInputEncoding ) ) );
-                       # strip out urlencoded &nbsp; (inserted for french spaces, e.g. first space in 'something : something')
-                       $canonized_headline = str_replace('%C2%A0','_', $canonized_headline);
+                       $canonized_headline = urlencode( do_html_entity_decode( str_replace(' ', '_', $tocline), ENT_COMPAT, $wgInputEncoding ) );
+                       $replacearray = array(
+                               '%3A' => ':',
+                               '%' => '.'
+                       );
+                       $canonized_headline = str_replace(array_keys($replacearray),array_values($replacearray),$canonized_headline);
                        $refer[$headlineCount] = $canonized_headline;
 
                        # count how many in assoc. array so we can track dupes in anchors
@@ -1705,26 +2218,26 @@ class Parser
                        # Prepend the number to the heading text
 
                        if( $doNumberHeadings || $doShowToc ) {
-                               $tocline = $numbering . " " . $tocline;
+                               $tocline = $numbering . ' ' . $tocline;
 
                                # Don't number the heading if it is the only one (looks silly)
                                if( $doNumberHeadings && count( $matches[3] ) > 1) {
                                        # the two are different if the line contains a link
-                                       $headline=$numbering . " " . $headline;
+                                       $headline=$numbering . ' ' . $headline;
                                }
                        }
 
                        # Create the anchor for linking from the TOC to the section
                        $anchor = $canonized_headline;
                        if($refcount[$headlineCount] > 1 ) {
-                               $anchor .= "_" . $refcount[$headlineCount];
+                               $anchor .= '_' . $refcount[$headlineCount];
                        }
-                       if( $doShowToc ) {
+                       if( $doShowToc && ( !isset($wgMaxTocLevel) || $toclevel<$wgMaxTocLevel ) ) {
                                $toc .= $sk->tocLine($anchor,$tocline,$toclevel);
                        }
                        if( $showEditLink ) {
                                if ( empty( $head[$headlineCount] ) ) {
-                                       $head[$headlineCount] = "";
+                                       $head[$headlineCount] = '';
                                }
                                $head[$headlineCount] .= $sk->editSectionLink($headlineCount+1);
                        }
@@ -1748,7 +2261,7 @@ class Parser
 
                # split up and insert constructed headlines
 
-               $blocks = preg_split( "/<H[1-6].*?" . ">.*?<\/H[1-6]>/i", $text );
+               $blocks = preg_split( '/<H[1-6].*?' . '>.*?<\/H[1-6]>/i', $text );
                $i = 0;
 
                foreach( $blocks as $block ) {
@@ -1761,7 +2274,7 @@ class Parser
                                # $full .= $sk->editSectionLink(0);
                        }
                        $full .= $block;
-                       if( $doShowToc && !$i && $isMain) {
+                       if( $doShowToc && !$i && $isMain && !$forceTocHere) {
                        # Top anchor now in skin
                                $full = $full.$toc;
                        }
@@ -1771,57 +2284,117 @@ class Parser
                        }
                        $i++;
                }
-
-               return $full;
+               if($forceTocHere) {
+                       $mw =& MagicWord::get( MAG_TOC );
+                       return $mw->replace( $toc, $full );
+               } else {
+                       return $full;
+               }
        }
 
-       /* private */ function magicISBN( $text )
-       {
+       # Return an HTML link for the "ISBN 123456" text
+       /* private */ function magicISBN( $text ) {
                global $wgLang;
+               $fname = 'Parser::magicISBN';
+               wfProfileIn( $fname );
 
-               $a = split( "ISBN ", " $text" );
-               if ( count ( $a ) < 2 ) return $text;
+               $a = split( 'ISBN ', " $text" );
+               if ( count ( $a ) < 2 ) {
+                       wfProfileOut( $fname );
+                       return $text;
+               }
                $text = substr( array_shift( $a ), 1);
-               $valid = "0123456789-ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+               $valid = '0123456789-ABCDEFGHIJKLMNOPQRSTUVWXYZ';
 
                foreach ( $a as $x ) {
-                       $isbn = $blank = "" ;
-                       while ( " " == $x{0} ) {
-                               $blank .= " ";
+                       $isbn = $blank = '' ;
+                       while ( ' ' == $x{0} ) {
+                               $blank .= ' ';
                                $x = substr( $x, 1 );
                        }
                        while ( strstr( $valid, $x{0} ) != false ) {
                                $isbn .= $x{0};
                                $x = substr( $x, 1 );
                        }
-                       $num = str_replace( "-", "", $isbn );
-                       $num = str_replace( " ", "", $num );
+                       $num = str_replace( '-', '', $isbn );
+                       $num = str_replace( ' ', '', $num );
 
-                       if ( "" == $num ) {
+                       if ( '' == $num ) {
                                $text .= "ISBN $blank$x";
                        } else {
-                               $titleObj = Title::makeTitle( NS_SPECIAL, "Booksources" );
-                               $text .= "<a href=\"" .
+                               $titleObj = Title::makeTitle( NS_SPECIAL, 'Booksources' );
+                               $text .= '<a href="' .
                                $titleObj->escapeLocalUrl( "isbn={$num}" ) .
                                        "\" class=\"internal\">ISBN $isbn</a>";
                                $text .= $x;
                        }
                }
+               wfProfileOut( $fname );
                return $text;
        }
-       /* private */ function magicRFC( $text )
-       {
+
+       # Return an HTML link for the "GEO ..." text
+       /* private */ function magicGEO( $text ) {
+               global $wgLang, $wgUseGeoMode;
+               if ( !isset ( $wgUseGeoMode ) || !$wgUseGeoMode ) return $text ;
+               $fname = 'Parser::magicGEO';
+               wfProfileIn( $fname );
+
+               # These next five lines are only for the ~35000 U.S. Census Rambot pages...
+               $directions = array ( "N" => "North" , "S" => "South" , "E" => "East" , "W" => "West" ) ;
+               $text = preg_replace ( "/(\d+)&deg;(\d+)'(\d+)\" {$directions['N']}, (\d+)&deg;(\d+)'(\d+)\" {$directions['W']}/" , "(GEO +\$1.\$2.\$3:-\$4.\$5.\$6)" , $text ) ;
+               $text = preg_replace ( "/(\d+)&deg;(\d+)'(\d+)\" {$directions['N']}, (\d+)&deg;(\d+)'(\d+)\" {$directions['E']}/" , "(GEO +\$1.\$2.\$3:+\$4.\$5.\$6)" , $text ) ;
+               $text = preg_replace ( "/(\d+)&deg;(\d+)'(\d+)\" {$directions['S']}, (\d+)&deg;(\d+)'(\d+)\" {$directions['W']}/" , "(GEO +\$1.\$2.\$3:-\$4.\$5.\$6)" , $text ) ;
+               $text = preg_replace ( "/(\d+)&deg;(\d+)'(\d+)\" {$directions['S']}, (\d+)&deg;(\d+)'(\d+)\" {$directions['E']}/" , "(GEO +\$1.\$2.\$3:+\$4.\$5.\$6)" , $text ) ;
+
+               $a = split( 'GEO ', " $text" );
+               if ( count ( $a ) < 2 ) {
+                       wfProfileOut( $fname );
+                       return $text;
+               }
+               $text = substr( array_shift( $a ), 1);
+               $valid = '0123456789.+-:';
+
+               foreach ( $a as $x ) {
+                       $geo = $blank = '' ;
+                       while ( ' ' == $x{0} ) {
+                               $blank .= ' ';
+                               $x = substr( $x, 1 );
+                       }
+                       while ( strstr( $valid, $x{0} ) != false ) {
+                               $geo .= $x{0};
+                               $x = substr( $x, 1 );
+                       }
+                       $num = str_replace( '+', '', $geo );
+                       $num = str_replace( ' ', '', $num );
+
+                       if ( '' == $num || count ( explode ( ":" , $num , 3 ) ) < 2 ) {
+                               $text .= "GEO $blank$x";
+                       } else {
+                               $titleObj = Title::makeTitle( NS_SPECIAL, 'Geo' );
+                               $text .= '<a href="' .
+                               $titleObj->escapeLocalUrl( "coordinates={$num}" ) .
+                                       "\" class=\"internal\">GEO $geo</a>";
+                               $text .= $x;
+                       }
+               }
+               wfProfileOut( $fname );
+               return $text;
+       }
+
+       # Return an HTML link for the "RFC 1234" text
+       /* private */ function magicRFC( $text ) {
                global $wgLang;
 
-               $a = split( "RFC ", " $text" );
+               $a = split( 'RFC ', ' '.$text );
                if ( count ( $a ) < 2 ) return $text;
                $text = substr( array_shift( $a ), 1);
-               $valid = "0123456789";
+               $valid = '0123456789';
 
                foreach ( $a as $x ) {
-                       $rfc = $blank = "" ;
-                       while ( " " == $x{0} ) {
-                               $blank .= " ";
+                       $rfc = $blank = '' ;
+                       while ( ' ' == $x{0} ) {
+                               $blank .= ' ';
                                $x = substr( $x, 1 );
                        }
                        while ( strstr( $valid, $x{0} ) != false ) {
@@ -1829,11 +2402,11 @@ class Parser
                                $x = substr( $x, 1 );
                        }
 
-                       if ( "" == $rfc ) {
+                       if ( '' == $rfc ) {
                                $text .= "RFC $blank$x";
                        } else {
-                               $url = wfmsg( "rfcurl" );
-                               $url = str_replace( "$1", $rfc, $url);
+                               $url = wfmsg( 'rfcurl' );
+                               $url = str_replace( '$1', $rfc, $url);
                                $sk =& $this->mOptions->getSkin();
                                $la = $sk->getExternalLinkAttributes( $url, "RFC {$rfc}" );
                                $text .= "<a href='{$url}'{$la}>RFC {$rfc}</a>{$x}";
@@ -1842,8 +2415,7 @@ class Parser
                return $text;
        }
 
-       function preSaveTransform( $text, &$title, &$user, $options, $clearState = true )
-       {
+       function preSaveTransform( $text, &$title, &$user, $options, $clearState = true ) {
                $this->mOptions = $options;
                $this->mTitle =& $title;
                $this->mOutputType = OT_WIKI;
@@ -1858,19 +2430,21 @@ class Parser
                        );
                $text = str_replace(array_keys($pairs), array_values($pairs), $text);
                // now with regexes
+               /*
                $pairs = array(
                        "/<br.+(clear|break)=[\"']?(all|both)[\"']?\\/?>/i" => '<br style="clear:both;"/>',
-                       "/<br *?>/i" => "<br/>",
+                       "/<br *?>/i" => "<br />",
                );
                $text = preg_replace(array_keys($pairs), array_values($pairs), $text);
+               */
                $text = $this->strip( $text, $stripState, false );
                $text = $this->pstPass2( $text, $user );
                $text = $this->unstrip( $text, $stripState );
+               $text = $this->unstripNoWiki( $text, $stripState );
                return $text;
        }
 
-       /* private */ function pstPass2( $text, &$user )
-       {
+       /* private */ function pstPass2( $text, &$user ) {
                global $wgLang, $wgLocaltimezone, $wgCurParser;
 
                # Variable replacement
@@ -1880,21 +2454,19 @@ class Parser
                # Signatures
                #
                $n = $user->getName();
-               $k = $user->getOption( "nickname" );
-               if ( "" == $k ) { $k = $n; }
+               $k = $user->getOption( 'nickname' );
+               if ( '' == $k ) { $k = $n; }
                if(isset($wgLocaltimezone)) {
-                       $oldtz = getenv("TZ"); putenv("TZ=$wgLocaltimezone");
+                       $oldtz = getenv('TZ'); putenv('TZ='.$wgLocaltimezone);
                }
                /* Note: this is an ugly timezone hack for the European wikis */
-               $d = $wgLang->timeanddate( date( "YmdHis" ), false ) .
-                 " (" . date( "T" ) . ")";
-               if(isset($wgLocaltimezone)) putenv("TZ=$oldtz");
+               $d = $wgLang->timeanddate( date( 'YmdHis' ), false ) .
+                 ' (' . date( 'T' ) . ')';
+               if(isset($wgLocaltimezone)) putenv('TZ='.$oldtzs);
 
-               $text = preg_replace( "/~~~~~/", $d, $text );
-               $text = preg_replace( "/~~~~/", "[[" . $wgLang->getNsText(
-                 Namespace::getUser() ) . ":$n|$k]] $d", $text );
-               $text = preg_replace( "/~~~/", "[[" . $wgLang->getNsText(
-                 Namespace::getUser() ) . ":$n|$k]]", $text );
+               $text = preg_replace( '/~~~~~/', $d, $text );
+               $text = preg_replace( '/~~~~/', '[[' . $wgLang->getNsText( NS_USER ) . ":$n|$k]] $d", $text );
+               $text = preg_replace( '/~~~/', '[[' . $wgLang->getNsText( NS_USER ) . ":$n|$k]]", $text );
 
                # Context links: [[|name]] and [[name (context)|]]
                #
@@ -1913,12 +2485,12 @@ class Parser
                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 );
+               $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 );
 
-               if ( "" == $context ) {
-                       $text = preg_replace( $p2, "[[\\1]]", $text );
+               if ( '' == $context ) {
+                       $text = preg_replace( $p2, '[[\\1]]', $text );
                } else {
                        $text = preg_replace( $p2, "[[\\1 ({$context})|\\1]]", $text );
                }
@@ -1942,8 +2514,7 @@ class Parser
 
        # Set up some variables which are usually set up in parse()
        # so that an external function can call some class members with confidence
-       function startExternalParse( &$title, $options, $outputType, $clearState = true )
-       {
+       function startExternalParse( &$title, $options, $outputType, $clearState = true ) {
                $this->mTitle =& $title;
                $this->mOptions = $options;
                $this->mOutputType = $outputType;
@@ -1971,11 +2542,21 @@ class Parser
                $executing = false;
                return $text;
        }
+
+       # Create an HTML-style tag, e.g. <yourtag>special text</yourtag>
+       # Callback will be called with the text within
+       # Transform and return the text within
+       function setHook( $tag, $callback ) {
+               $oldVal = @$this->mTagHooks[$tag];
+               $this->mTagHooks[$tag] = $callback;
+               return $oldVal;
+       }
 }
 
 class ParserOutput
 {
        var $mText, $mLanguageLinks, $mCategoryLinks, $mContainsOldMagic;
+       var $mCacheTime; # Used in ParserCache
 
        function ParserOutput( $text = "", $languageLinks = array(), $categoryLinks = array(),
                $containsOldMagic = false )
@@ -1984,16 +2565,19 @@ class ParserOutput
                $this->mLanguageLinks = $languageLinks;
                $this->mCategoryLinks = $categoryLinks;
                $this->mContainsOldMagic = $containsOldMagic;
+               $this->mCacheTime = "";
        }
 
        function getText() { return $this->mText; }
        function getLanguageLinks() { return $this->mLanguageLinks; }
        function getCategoryLinks() { return $this->mCategoryLinks; }
+       function getCacheTime() { return $this->mCacheTime; }
        function containsOldMagic() { return $this->mContainsOldMagic; }
        function setText( $text ) { return wfSetVar( $this->mText, $text ); }
        function setLanguageLinks( $ll ) { return wfSetVar( $this->mLanguageLinks, $ll ); }
        function setCategoryLinks( $cl ) { return wfSetVar( $this->mCategoryLinks, $cl ); }
        function setContainsOldMagic( $com ) { return wfSetVar( $this->mContainsOldMagic, $com ); }
+       function setCacheTime( $t ) { return wfSetVar( $this->mCacheTime, $t ); }
 
        function merge( $other ) {
                $this->mLanguageLinks = array_merge( $this->mLanguageLinks, $other->mLanguageLinks );
@@ -2018,39 +2602,38 @@ class ParserOptions
        var $mNumberHeadings;            # Automatically number headings
        var $mShowToc;                   # Show table of contents
 
-       function getUseTeX() { return $this->mUseTeX; }
-       function getUseCategoryMagic() { return $this->mUseCategoryMagic; }
-       function getUseDynamicDates() { return $this->mUseDynamicDates; }
-       function getInterwikiMagic() { return $this->mInterwikiMagic; }
-       function getAllowExternalImages() { return $this->mAllowExternalImages; }
-       function getSkin() { return $this->mSkin; }
-       function getDateFormat() { return $this->mDateFormat; }
-       function getEditSection() { return $this->mEditSection; }
-       function getEditSectionOnRightClick() { return $this->mEditSectionOnRightClick; }
-       function getNumberHeadings() { return $this->mNumberHeadings; }
-       function getShowToc() { return $this->mShowToc; }
-
-       function setUseTeX( $x ) { return wfSetVar( $this->mUseTeX, $x ); }
-       function setUseCategoryMagic( $x ) { return wfSetVar( $this->mUseCategoryMagic, $x ); }
-       function setUseDynamicDates( $x ) { return wfSetVar( $this->mUseDynamicDates, $x ); }
-       function setInterwikiMagic( $x ) { return wfSetVar( $this->mInterwikiMagic, $x ); }
-       function setAllowExternalImages( $x ) { return wfSetVar( $this->mAllowExternalImages, $x ); }
-       function setSkin( $x ) { return wfSetRef( $this->mSkin, $x ); }
-       function setDateFormat( $x ) { return wfSetVar( $this->mDateFormat, $x ); }
-       function setEditSection( $x ) { return wfSetVar( $this->mEditSection, $x ); }
-       function setEditSectionOnRightClick( $x ) { return wfSetVar( $this->mEditSectionOnRightClick, $x ); }
-       function setNumberHeadings( $x ) { return wfSetVar( $this->mNumberHeadings, $x ); }
-       function setShowToc( $x ) { return wfSetVar( $this->mShowToc, $x ); }
-
-       /* static */ function newFromUser( &$user )
-       {
+       function getUseTeX()                        { return $this->mUseTeX; }
+       function getUseCategoryMagic()              { return $this->mUseCategoryMagic; }
+       function getUseDynamicDates()               { return $this->mUseDynamicDates; }
+       function getInterwikiMagic()                { return $this->mInterwikiMagic; }
+       function getAllowExternalImages()           { return $this->mAllowExternalImages; }
+       function getSkin()                          { return $this->mSkin; }
+       function getDateFormat()                    { return $this->mDateFormat; }
+       function getEditSection()                   { return $this->mEditSection; }
+       function getEditSectionOnRightClick()       { return $this->mEditSectionOnRightClick; }
+       function getNumberHeadings()                { return $this->mNumberHeadings; }
+       function getShowToc()                       { return $this->mShowToc; }
+
+       function setUseTeX( $x )                    { return wfSetVar( $this->mUseTeX, $x ); }
+       function setUseCategoryMagic( $x )          { return wfSetVar( $this->mUseCategoryMagic, $x ); }
+       function setUseDynamicDates( $x )           { return wfSetVar( $this->mUseDynamicDates, $x ); }
+       function setInterwikiMagic( $x )            { return wfSetVar( $this->mInterwikiMagic, $x ); }
+       function setAllowExternalImages( $x )       { return wfSetVar( $this->mAllowExternalImages, $x ); }
+       function setDateFormat( $x )                { return wfSetVar( $this->mDateFormat, $x ); }
+       function setEditSection( $x )               { return wfSetVar( $this->mEditSection, $x ); }
+       function setEditSectionOnRightClick( $x )   { return wfSetVar( $this->mEditSectionOnRightClick, $x ); }
+       function setNumberHeadings( $x )            { return wfSetVar( $this->mNumberHeadings, $x ); }
+       function setShowToc( $x )                   { return wfSetVar( $this->mShowToc, $x ); }
+
+    function setSkin( &$x ) { $this->mSkin =& $x; }
+
+       /* static */ function newFromUser( &$user ) {
                $popts = new ParserOptions;
                $popts->initialiseFromUser( $user );
                return $popts;
        }
 
-       function initialiseFromUser( &$userInput )
-       {
+       function initialiseFromUser( &$userInput ) {
                global $wgUseTeX, $wgUseCategoryMagic, $wgUseDynamicDates, $wgInterwikiMagic, $wgAllowExternalImages;
 
                if ( !$userInput ) {
@@ -2066,11 +2649,11 @@ class ParserOptions
                $this->mInterwikiMagic = $wgInterwikiMagic;
                $this->mAllowExternalImages = $wgAllowExternalImages;
                $this->mSkin =& $user->getSkin();
-               $this->mDateFormat = $user->getOption( "date" );
-               $this->mEditSection = $user->getOption( "editsection" );
-               $this->mEditSectionOnRightClick = $user->getOption( "editsectiononrightclick" );
-               $this->mNumberHeadings = $user->getOption( "numberheadings" );
-               $this->mShowToc = $user->getOption( "showtoc" );
+               $this->mDateFormat = $user->getOption( 'date' );
+               $this->mEditSection = $user->getOption( 'editsection' );
+               $this->mEditSectionOnRightClick = $user->getOption( 'editsectiononrightclick' );
+               $this->mNumberHeadings = $user->getOption( 'numberheadings' );
+               $this->mShowToc = $user->getOption( 'showtoc' );
        }
 
 
@@ -2080,29 +2663,6 @@ class ParserOptions
 function wfBraceSubstitution( $matches )
 {
        global $wgCurParser;
-       $titleChars = Title::legalChars();
-
-       # not really nested stuff, just multiple includes separated by titlechars
-       if(preg_match("/^([^}{]*)}}([^}{]*{{)(.*)$/s", $matches[2], $m)) {
-               $text = wfInternalBraceSubstitution( $m[1] );
-               $string = $text.$m[2].$m[3];
-               while(preg_match("/^([^}{]*){{([$titleChars]*?)(}}[^}{]*{{.*)?$/s", $string, $m)) {
-                       $text = wfInternalBraceSubstitution( $m[2] );
-                       $trail = !empty($m[3])? preg_replace("/^}}/", '', $m[3]):'';
-                       $string = $m[1].$text.$trail;
-               }
-               return $string;
-       }
-               
-       # Double brace substitution, expand bar in {{foo{{bar}}}}
-       $i = 0;
-       while(preg_match("/{{([$titleChars]*?)}}/", $matches[2], $internalmatches) and $i < 30) {
-               $text = wfInternalBraceSubstitution( $internalmatches[1] );
-               $matches[0] = str_replace($internalmatches[0], $text , $matches[0]);
-               $matches[2] = str_replace($internalmatches[0], $text , $matches[2]);
-               $i++;
-       }
-
        return $wgCurParser->braceSubstitution( $matches );
 }
 
@@ -2112,135 +2672,10 @@ function wfArgSubstitution( $matches )
        return $wgCurParser->argSubstitution( $matches );
 }
 
-# XXX: i don't think this is the most elegant way to do it..
-function wfInternalBraceSubstitution( $part1 ) {
-       global $wgLinkCache, $wgLang, $wgCurParser;
-       $fname = "wfInternalBraceSubstitution";
-       $found = false;
-       $nowiki = false;
-       $noparse = false;
-
-       $title = NULL;
-
-       # $newline is an optional newline character before the braces
-       # $part1 is the bit before the first |, and must contain only title characters
-       # $args is a list of arguments, starting from index 0, not including $part1
-
-       # SUBST
-       if ( !$found ) {
-               $mwSubst =& MagicWord::get( MAG_SUBST );
-               if ( $mwSubst->matchStartAndRemove( $part1 ) ) {
-                       if ( $wgCurParser->mOutputType != OT_WIKI ) {
-                               # Invalid SUBST not replaced at PST time
-                               # Return without further processing
-                               $text = $matches[0];
-                               $found = true;
-                               $noparse= true;
-                       }
-               } elseif ( $wgCurParser->mOutputType == OT_WIKI ) {
-                       # SUBST not found in PST pass, do nothing
-                       $text = $matches[0];
-                       $found = true;
-               }
-       }
-
-       # MSG, MSGNW and INT
-       if ( !$found ) {
-               # Check for MSGNW:
-               $mwMsgnw =& MagicWord::get( MAG_MSGNW );
-               if ( $mwMsgnw->matchStartAndRemove( $part1 ) ) {
-                       $nowiki = true;
-               } else {
-                       # Remove obsolete MSG:
-                       $mwMsg =& MagicWord::get( MAG_MSG );
-                       $mwMsg->matchStartAndRemove( $part1 );
-               }
-
-               # Check if it is an internal message
-               $mwInt =& MagicWord::get( MAG_INT );
-               if ( $mwInt->matchStartAndRemove( $part1 ) ) {
-                       if ( $wgCurParser->incrementIncludeCount( "int:$part1" ) ) {
-                               $text = wfMsgReal( $part1, array(), true );
-                               $found = true;
-                       }
-               }
-       }
-
-       # NS
-       if ( !$found ) {
-               # Check for NS: (namespace expansion)
-               $mwNs = MagicWord::get( MAG_NS );
-               if ( $mwNs->matchStartAndRemove( $part1 ) ) {
-                       if ( intval( $part1 ) ) {
-                               $text = $wgLang->getNsText( intval( $part1 ) );
-                               $found = true;
-                       } else {
-                               $index = Namespace::getCanonicalIndex( strtolower( $part1 ) );
-                               if ( !is_null( $index ) ) {
-                                       $text = $wgLang->getNsText( $index );
-                                       $found = true;
-                               }
-                       }
-               }
-       }
-
-       # LOCALURL and LOCALURLE
-       if ( !$found ) {
-               $mwLocal = MagicWord::get( MAG_LOCALURL );
-               $mwLocalE = MagicWord::get( MAG_LOCALURLE );
-
-               if ( $mwLocal->matchStartAndRemove( $part1 ) ) {
-                       $func = 'getLocalURL';
-               } elseif ( $mwLocalE->matchStartAndRemove( $part1 ) ) {
-                       $func = 'escapeLocalURL';
-               } else {
-                       $func = '';
-               }
-
-               if ( $func !== '' ) {
-                       $title = Title::newFromText( $part1 );
-                       if ( !is_null( $title ) ) {
-                               $text = $title->$func();
-                               $found = true;
-                       }
-               }
-       }
-
-       # Internal variables
-       if ( !$found && array_key_exists( $part1, $wgCurParser->mVariables ) ) {
-               $text = $wgCurParser->mVariables[$part1];
-               $found = true;
-               $wgCurParser->mOutput->mContainsOldMagic = true;
-       }
-
-       # Load from database
-       if ( !$found ) {
-               $title = Title::newFromText( $part1, NS_TEMPLATE );
-               if ( !is_null( $title ) && !$title->isExternal() ) {
-                       # Check for excessive inclusion
-                       $dbk = $title->getPrefixedDBkey();
-                       if ( $wgCurParser->incrementIncludeCount( $dbk ) ) {
-                               $article = new Article( $title );
-                               $articleContent = $article->getContentWithoutUsingSoManyDamnGlobals();
-                               if ( $articleContent !== false ) {
-                                       $found = true;
-                                       $text = $articleContent;
-
-                               }
-                       }
-
-                       # If the title is valid but undisplayable, make a link to it
-                       if ( $wgCurParser->mOutputType == OT_HTML && !$found ) {
-                               $text = "[[" . $title->getPrefixedText() . "]]";
-                               $found = true;
-                       }
-               }
-       }
-
-       if ( !$found ) {
-               return $matches[0];
-       } else {
-               return $text;
-       }
+function wfVariableSubstitution( $matches )
+{
+       global $wgCurParser;
+       return $wgCurParser->variableSubstitution( $matches );
 }
+
 ?>