--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/includes/wikiengine/Parse/Mediawiki/Heading.php	Wed Jun 13 16:07:17 2007 -0400
@@ -0,0 +1,109 @@
+<?php
+
+/**
+* 
+* Parses for heading text.
+* 
+* @category Text
+* 
+* @package Text_Wiki
+* 
+* @author Paul M. Jones <pmjones@php.net>
+* 
+* @author Moritz Venn <moritz.venn@freaque.net>
+* 
+* @license LGPL
+* 
+* @version $Id: Heading.php,v 1.3 2006/02/03 19:47:02 toggg Exp $
+* 
+*/
+
+/**
+* 
+* Parses for heading text.
+* 
+* This class implements a Text_Wiki_Parse to find source text marked to
+* be a heading element, as defined by text on a line by itself prefixed
+* with a number of plus signs (+). The heading text itself is left in
+* the source, but is prefixed and suffixed with delimited tokens marking
+* the start and end of the heading.
+*
+* @category Text
+* 
+* @package Text_Wiki
+* 
+* @author Moritz Venn <moritz.venn@freaque.net>
+* 
+*/
+
+class Text_Wiki_Parse_Heading extends Text_Wiki_Parse {
+    
+    
+    /**
+    * 
+    * The regular expression used to parse the source text and find
+    * matches conforming to this rule.  Used by the parse() method.
+    * 
+    * @access public
+    * 
+    * @var string
+    * 
+    * @see parse()
+    * 
+    */
+    
+    var $regex = '/^(={2,6})(.*?)\1(?:\s|$)/m';
+    
+    var $conf = array(
+        'id_prefix' => 'toc'
+    );
+    
+    /**
+    * 
+    * Generates a replacement for the matched text.  Token options are:
+    * 
+    * 'type' => ['start'|'end'] The starting or ending point of the
+    * heading text.  The text itself is left in the source.
+    * 
+    * @access public
+    *
+    * @param array &$matches The array of matches from parse().
+    *
+    * @return string A pair of delimited tokens to be used as a
+    * placeholder in the source text surrounding the heading text.
+    *
+    */
+    
+    function process(&$matches)
+    {
+        // keep a running count for header IDs.  we use this later
+        // when constructing TOC entries, etc.
+        static $id;
+        if (! isset($id)) {
+            $id = 0;
+        }
+        
+        $prefix = htmlspecialchars($this->getConf('id_prefix'));
+        
+        $start = $this->wiki->addToken(
+            $this->rule, 
+            array(
+                'type' => 'start',
+                'level' => strlen($matches[1]),
+                'text' => trim($matches[2]),
+                'id' => $prefix . $id ++
+            )
+        );
+        
+        $end = $this->wiki->addToken(
+            $this->rule, 
+            array(
+                'type' => 'end',
+                'level' => strlen($matches[1])
+            )
+        );
+        
+        return $start . trim($matches[2]) . $end . "\n";
+    }
+}
+?>