Parser werkt niet

<?php
	/**
	 * Bbcode testbestand
	 *
	 * @link http://en.wikipedia.org/wiki/BBCode
	 * @author Richard van Velzen
	 * @package Bbcode
	 */


	
	$startTime = microtime(true);
	
	require 'allinone.php';
	
	/**
	 * Verwerking voor de code tag
	 *
	 * @param string $tagName
	 * @param string $content
	 * @param array $arguments
	 * @return string
	 */
	function codeTag($tagName, $content, array $arguments) {
	    return '<pre><code>' . preg_replace('{(?=[\\r\\n])\\r?+\\n?+}', '</code><code>', htmlspecialchars($content)) . '</code></pre>';
	}
	
	/**
	 * url-tag specifieke rule
	 *
	 * @author Richard van Velzen
	 */
	class UrlTagRule extends TagRule {
	    /**
	     * Check of we binnen een andere url-tag zitten
	     *
	     * @param PointNode $node
	     * @return boolean
	     */
	    public function isPermissableIn(PointNode $node) {
	        $initialValid = parent::isPermissableIn($node);
	
	        if($initialValid) {
            // verdorie, nu moeten we de tree aflopen of we mogen
	            while(!$node->getRule() instanceof UrlTagRule) {
	                $node = $node->getParent();
	                if(!$node instanceof TagNode) {
	                    return true;
	                }
	            }
	        }
	
	        return false;
	    }
	}
	
	/**
	 * Verwerking voor de url tag
	 *
	 * @param string $tagName
	 * @param string $content
	 * @param array $arguments
	 * @return string
	 */
	function linkTag($tagName, $content, array $arguments) {
	    $argName = $tagName == 'url' ? 'url' : 'href';
	
	    $link = &$arguments[$argName];
	    $match = array();
	    if(!isset($link) || !preg_match('{^(?:((?:https?|ftp)://)|\\w+\\.)[\\w.]+[;#&/~=\\w+()?.,:%-]*$}i', $link, $match)) {
	        return $content;
	    }
	
	    if(empty($match[1])) {
	        $link = 'http://' . $link;
	    }
	
	    return '<a href="' . $link . '">' . $content . '</a>';
	}
	
	/**
	 * Verwerking voor een image tag
	 *
 * @param unknown_type $tagName
	 * @param unknown_type $content
	 * @param unknown_type $arguments
	 * @return unknown
 */
	function imageTag($tagName, $content, array $arguments) {
	    $match = array();
	    if(!preg_match('{^(?:((?:https?|ftp)://)|\\w+\\.)[\\w.]+[;#&/~=\\w+()?.,:%-]*$}i', $content, $match)) {
	        return htmlspecialchars($content);
	    }
	
	    $url = $content;
	    if(empty($match[1])) {
	        $url = 'http://' . $url;
	    }
	
	    $alt = isset($arguments['alt']) ? htmlspecialchars($arguments['alt']) : '';
	
	    return '<img src="' . htmlspecialchars($url) . '" alt="' . $alt . '" />';
	}
	
	$text = file_get_contents('input.txt');
	
	$parser = new Parser();
	$parser->setLexer(new SplitLexer())
	       ->addRule(new TagRule('b',      'inline',   array('block', 'inline', 'listitem'), new TagTemplate('<strong>{$_content/nl2br}</strong>')))
	       ->addRule(new UrlTagRule('url', 'inline',   array('block', 'inline', 'listitem'), 'linkTag'))
	       ->addRule(new UrlTagRule('a',   'inline',   array('block', 'inline', 'listitem'), 'linkTag'))
	       ->addRule(new TagRule('i',      'inline',   array('block', 'inline', 'listitem'), new TagTemplate('<em>{$_content/nl2br}</em>')))
		   ->addRule(new TagRule('u',      'inline',   array('block', 'inline', 'listitem'), new TagTemplate('<span class="underline">{$_content/nl2br}</span>')))
	       ->addRule(new TagRule('list',   'list',     array('block', 'listitem'),           new TagTemplate('<ul>{$_content/trim}</ul>'),                       TagRule::TRIM_BOTH))
	       ->addRule(new TagRule('sup',    'inline',   array('block', 'inline', 'listitem'), new TagTemplate('<sub>{$_content/nl2br}</sup>')))
	       ->addRule(new TagRule('sub',    'inline',   array('block', 'inline', 'listitem'), new TagTemplate('<sub>{$_content/nl2br}</sub>')))
	       ->addRule(new TagRule('*',      'listitem', array('list'),                        new TagTemplate('<li>{$_content/trim/nl2br}</li>'),                 TagRule::TRIM_BOTH, TagRule::PARSE))
	       ->addRule(new TagRule('quote',  'block',    array('block'),                       new TagTemplate('<div class="quote">{$_content/trim/nl2br}</div>'), TagRule::TRIM_BOTH))
	
	       // letterlijke tags met callback
	       ->addRule(new TagRule('img',    'image',    array('block', 'inline', 'listitem'), 'imageTag', Tagrule::TRIM_NONE, TagRule::LITERAL))
	       ->addRule(new TagRule('code',   'code',     array('block'),                       'codeTag',  TagRule::TRIM_BOTH, TagRule::LITERAL));
	
$output = $parser->parse($text);
?>