Merge "Don't display multiple language links to the same language"

[lhc/web/wiklou.git] / includes / parser / Parser.php

diff --git a/includes/parser/Parser.php b/includes/parser/Parser.php
index 9a094c8..9c15985 100644 (file)
--- a/includes/parser/Parser.php
+++ b/includes/parser/Parser.php
@@ -200,6 +200,13 @@ class Parser {
         */
        var $mUniqPrefix;
 
+       /**
+        * @var Array with the language name of each language link (i.e. the
+        * interwiki prefix) in the key, value arbitrary. Used to avoid sending
+        * duplicate language links to the ParserOutput.
+        */
+       var $mLangLinkLanguages;
+
        /**
         * Constructor
         *
@@ -282,6 +289,7 @@ class Parser {
                        $this->mRevisionId = $this->mRevisionUser = null;
                $this->mVarCache = array();
                $this->mUser = null;
+               $this->mLangLinkLanguages = array();
 
                /**
                 * Prefix for temporary replacement strings for the multipass parser.
@@ -1953,7 +1961,11 @@ class Parser {
                                # Interwikis
                                wfProfileIn( __METHOD__."-interwiki" );
                                if ( $iw && $this->mOptions->getInterwikiMagic() && $nottalk && Language::fetchLanguageName( $iw, null, 'mw' ) ) {
-                                       $this->mOutput->addLanguageLink( $nt->getFullText() );
+                                       # Bug 24502: filter duplicates
+                                       if ( !isset( $this->mLangLinkLanguages[$iw] ) ) {
+                                               $this->mLangLinkLanguages[$iw] = true;
+                                               $this->mOutput->addLanguageLink( $nt->getFullText() );
+                                       }
                                        $s = rtrim( $s . $prefix );
                                        $s .= trim( $trail, "\n" ) == '' ? '': $prefix . $trail;
                                        wfProfileOut( __METHOD__."-interwiki" );