<?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];

    }

}

?>