From bfc27da4c482af8473a18ad9bb2cfa7e90ee51ac Mon Sep 17 00:00:00 2001
From: Zheng Zhu <zhengzhu@users.mediawiki.org>
Date: Mon, 4 Oct 2004 03:47:39 +0000
Subject: [PATCH] Convert the title of an article to the preferred language
 variant.

---
 includes/Parser.php      | 25 ++++++++++++++++++++++++-
 includes/Title.php       | 10 ++++++++--
 languages/Language.php   |  2 +-
 languages/LanguageZh.php | 19 +++++++++++--------
 4 files changed, 44 insertions(+), 12 deletions(-)

diff --git a/includes/Parser.php b/includes/Parser.php
index 8e3e8a4263..2395ace96e 100644
--- a/includes/Parser.php
+++ b/includes/Parser.php
@@ -1160,7 +1160,30 @@ class Parser
 				$s .= $prefix . '[[' . $line;
 				continue;
 			}
-			
+
+			//check other language variants of the link
+			//if the article does not exist
+			if($nt->getArticleID() == 0) {
+				global $wgContLang;
+				$variants = $wgContLang->getVariants();
+				$varnt = false; 
+				if(sizeof($variants) > 1) {
+					foreach ( $variants as $v ) {
+						if($v == $wgContLang->getPreferredVariant())
+							continue;
+						$varlink = $wgContLang->autoConvert($link, $v);
+						$varnt = Title::newFromText($varlink);
+						if($varnt && $varnt->getArticleID()>0) {
+							break;
+						}
+					}
+				}
+				if($varnt && $varnt->getArticleID()>0) {
+					$nt = $varnt;
+					$link = $varlink;
+				}
+			}
+
 			$ns = $nt->getNamespace();
 			$iw = $nt->getInterWiki();
 			
diff --git a/includes/Title.php b/includes/Title.php
index 350537bad7..c4d972ceb2 100644
--- a/includes/Title.php
+++ b/includes/Title.php
@@ -526,12 +526,15 @@ class Title {
 	 * @access public
 	 */
 	function getPrefixedText() {
+		global $wgContLang;
 		if ( empty( $this->mPrefixedText ) ) {
 			$s = $this->prefix( $this->mTextform );
 			$s = str_replace( '_', ' ', $s );
 			$this->mPrefixedText = $s;
 		}
-		return $this->mPrefixedText;
+		//convert to the desired language variant
+		$t = $wgContLang->convert($this->mPrefixedText);
+		return $t;
 	}
 	
 	/**
@@ -542,11 +545,14 @@ class Title {
 	 * @access public
 	 */
 	function getFullText() {
+		global $wgContLang;
 		$text = $this->getPrefixedText();
 		if( '' != $this->mFragment ) {
 			$text .= '#' . $this->mFragment;
 		}
-		return $text;
+		//convert to desired language variant
+		$t = $wgContLang->convert($text);
+		return $t;
 	}
 
 	/**
diff --git a/languages/Language.php b/languages/Language.php
index c6c7267380..d0ee9cd733 100644
--- a/languages/Language.php
+++ b/languages/Language.php
@@ -2096,7 +2096,7 @@ class Language {
 	/* this does the real conversion to the preferred variant.
 	   see LanguageZh.php for example
 	*/
-	function autoConvert($text) {
+	function autoConvert($text, $toVariant=false) {
 		return $text;
 	}
 	
diff --git a/languages/LanguageZh.php b/languages/LanguageZh.php
index f7b3b3ea2e..c98255c118 100644
--- a/languages/LanguageZh.php
+++ b/languages/LanguageZh.php
@@ -63,14 +63,17 @@ class LanguageZh extends LanguageZh_cn {
 		return strtr($text, $zhTrad2Simp);
 	}
 	
-	function autoConvert($text) {
-        if($this->getPreferredVariant() == "zh-cn") {
-            return $this->trad2simp($text);
-        }
-        else {
-            return $this->simp2trad($text);
-        }
-    }
+	function autoConvert($text, $toVariant=false) {
+		if(!$toVariant) 
+			$toVariant = $this->getPreferredVariant();
+
+		if($toVariant == "zh-cn") {
+			return $this->trad2simp($text);
+		}
+		else {
+			return $this->simp2trad($text);
+		}
+	}
 
     function getVariants() {
         return array("zh-cn", "zh-tw");
-- 
2.20.1