Added two options to restrict linking to whole words.

LinkTitles.body.php

@@ -77,6 +77,11 @@
 			global $wgLinkTitlesBlackList;
 			global $wgLinkTitlesSkipTemplates;
 			global $wgLinkTitlesFirstOnly;
+			global $wgLinkTitlesWordStartOnly;
+			global $wgLinkTitlesWordEndOnly;
+
+			( $wgLinkTitlesWordStartOnly ) ? $wordStartDelim = '\b' : $wordStartDelim = '';
+			( $wgLinkTitlesWordEndOnly ) ? $wordEndDelim = '\b' : $wordEndDelim = '';
 
 			// To prevent adding self-references, we now
 			// extract the current page's title.
@@ -142,8 +147,9 @@
 					( $wgLinkTitlesFirstOnly ) ? $loopLimit = 1 : $loopLimit = count( $arr );
 					for ( $i = 0; $i < $loopLimit; $i+=2 ) {
 						// even indexes will point to text that is not enclosed by brackets
-						$arr[$i] = preg_replace( '/(?<![\:\.\@\/\?\&])\b(' . $safeTitle . ')\b/i', 
-							'[[$1]]', $arr[$i], $limit );
+						$arr[$i] = preg_replace( '/(?<![\:\.\@\/\?\&])' .
+							$wordStartDelim . '(' . $safeTitle . ')' . 
+							$wordEndDelim . '/i', '[[$1]]', $arr[$i], $limit );
 					};
 					$text = implode( '', $arr );
 				}; // if $title != $myTitle

LinkTitles.php

@@ -40,13 +40,15 @@
 	$wgLinkTitlesSkipTemplates = false;
 	$wgLinkTitlesBlackList = array();
 	$wgLinkTitlesFirstOnly = false;
+	$wgLinkTitlesWordStartOnly = true;
+	$wgLinkTitlesWordEndOnly = true;
 
   $wgExtensionCredits['parserhook'][] = array(
     'path'           => __FILE__,
     'name'           => 'LinkTitles',
     'author'         => '[http://www.mediawiki.org/wiki/User:Bovender Daniel Kraus]', 
     'url'            => 'http://www.mediawiki.org/wiki/Extension:LinkTitles',
-    'version'        => '1.5.0',
+    'version'        => '1.6.0',
     'descriptionmsg' => 'linktitles-desc'
     );
 

NEWS

@@ -1,3 +1,7 @@
+LinkTitles 1.6.0: 2012-12-22
+* Added new options to restrict linking to page titles at the beginning or an 
+  end of a word. This enables linking variants of a page title.
+
 LinkTitles 1.5.0: 2012-12-11
 * Added new option to link only the first occurrence of a page title.