# Adds support for LaTeX-style style inline equations ($equation$) to mediawiki.
# After the patch is applied, <math>equation</math> and $equation$ are 
# interpreted in the same way.
diff -Naurp mediawiki-1.5.6-orig/includes/Parser.php mediawiki-1.5.6-latex/includes/Parser.php
--- mediawiki-1.5.6-orig/includes/Parser.php	2006-01-18 06:42:17.000000000 +0100
+++ mediawiki-1.5.6-latex/includes/Parser.php	2006-02-09 16:49:14.000000000 +0100
@@ -42,6 +42,7 @@ define( 'OT_MSG' , 3 );
 # <XML>-style tags. This should not be anything we
 # may want to use in wikisyntax
 define( 'STRIP_COMMENTS', 'HTMLCommentStrip' );
+define( 'LATEX_DELIM', 'LatexDelim' );
 
 # Constants needed for external link processing
 define( 'HTTP_PROTOCOLS', 'http:\/\/|https:\/\/' );
@@ -273,6 +274,9 @@ class Parser
 		if( $tag == STRIP_COMMENTS ) {
 			$start = '/<!--()/';
 			$end   = '/-->/';
+		} else if ( $tag == LATEX_DELIM ) {
+			$start = '/\$()/i';
+			$end   = '/\$/i';
 		} else {
 			$start = "/<$tag(\\s+[^>]*|\\s*)>/i";
 			$end   = "/<\\/$tag\\s*>/i";
@@ -339,6 +343,7 @@ class Parser
 		$html_content = array();
 		$nowiki_content = array();
 		$math_content = array();
+		$latex_content = array();
 		$pre_content = array();
 		$comment_content = array();
 		$ext_content = array();
@@ -384,6 +389,15 @@ class Parser
 					$math_content[$marker] = '<math>'.$content.'</math>';
 				}
 			}
+	
+			$text = Parser::extractTags(LATEX_DELIM, $text, $latex_content, $uniq_prefix);
+			foreach( $latex_content as $marker => $content ){
+				if( $render ) {
+					$latex_content[$marker] = renderMath( $content );
+				} else {
+					$latex_content[$marker] = '$'.$content.'$';
+				}
+			}
 		}
 
 		# pre
@@ -435,7 +449,7 @@ class Parser
 		if ( $state ) {
 			$state['html'] = $state['html'] + $html_content;
 			$state['nowiki'] = $state['nowiki'] + $nowiki_content;
-			$state['math'] = $state['math'] + $math_content;
+			$state['math'] = $state['math'] + $math_content + $latex_content;
 			$state['pre'] = $state['pre'] + $pre_content;
 			$state['comment'] = $state['comment'] + $comment_content;
 			$state['gallery'] = $state['gallery'] + $gallery_content;
@@ -449,7 +463,7 @@ class Parser
 			$state = array(
 			  'html' => $html_content,
 			  'nowiki' => $nowiki_content,
-			  'math' => $math_content,
+			  'math' => $math_content + $latex_content,
 			  'pre' => $pre_content,
 			  'comment' => $comment_content,
 			  'gallery' => $gallery_content,