includes/wikiengine/Parse/Mediawiki/Code.php
author Dan
Fri, 05 Oct 2007 01:57:00 -0400
changeset 161 e1a22031b5bd
parent 1 fe660c52c48f
permissions -rw-r--r--
Major revamps to the template parser. Fixed a few security holes that could allow PHP to be injected in untimely places in TPL code. Improved Ux for XSS attempt in tplWikiFormat. Documented many functions. Backported much cleaner parser from 2.0 branch. Beautified a lot of code in the depths of the template class. Pretty much a small-scale Extreme Makeover.

<?php

/**
* 
* Parses for text marked as a code example block.
* 
* @category Text
* 
* @package Text_Wiki
* 
* @author Paul M. Jones <pmjones@php.net>
* 
* @license LGPL
* 
* @version $Id: Code.php,v 1.10 2006/02/21 14:33:53 toggg Exp $
* 
*/

/**
* 
* Parses for text marked as a code example block.
* 
* This class implements a Text_Wiki_Parse to find sections marked as code
* examples.  Blocks are marked as the string <code> on a line by itself,
* followed by the inline code example, and terminated with the string
* </code> on a line by itself.  The code example is run through the
* native PHP highlight_string() function to colorize it, then surrounded
* with <pre>...</pre> tags when rendered as XHTML.
*
* @category Text
* 
* @package Text_Wiki
* 
* @author Paul M. Jones <pmjones@php.net>
* 
*/

class Text_Wiki_Parse_Code extends Text_Wiki_Parse {
    
    
    /**
    * 
    * The regular expression used to find source text matching this
    * rule.
    * 
    * @access public
    * 
    * @var string
    * 
    */
    
/*    var $regex = '/^(\<code( .+)?\>)\n(.+)\n(\<\/code\>)(\s|$)/Umsi';*/
    var $regex = ';^<code(\s[^>]*)?>((?:(?R)|.)*?)\n</code>(\s|$);msi';
    
    /**
    * 
    * Generates a token entry for the matched text.  Token options are:
    * 
    * 'text' => The full matched text, not including the <code></code> tags.
    * 
    * @access public
    *
    * @param array &$matches The array of matches from parse().
    *
    * @return A delimited token number to be used as a placeholder in
    * the source text.
    *
    */
    
    function process(&$matches)
    {
        // are there additional attribute arguments?
        $args = trim($matches[1]);
        
        if ($args == '') {
            $options = array(
                'text' => $matches[2],
                'attr' => array('type' => '')
            );
        } else {
        	// get the attributes...
        	$attr = $this->getAttrs($args);
        	
        	// ... and make sure we have a 'type'
        	if (! isset($attr['type'])) {
        		$attr['type'] = '';
        	}
        	
        	// retain the options
            $options = array(
                'text' => $matches[2],
                'attr' => $attr
            );
        }
        
        return $this->wiki->addToken($this->rule, $options) . $matches[3];
    }
}
?>