<?php

/**
* 
* Parses for anchor targets.
* 
* @category Text
* 
* @package Text_Wiki
* 
* @author Manuel Holtgrewe <purestorm at ggnore dot net>
*
* @author Paul M. Jones <pmjones@php.net>
* 
* @license LGPL
* 
* @version $Id: Anchor.php 180591 2005-02-23 17:38:29Z pmjones $
* 
*/

/**
* 
* This class implements a Text_Wiki_Parse to add an anchor target name
* in the wiki page.
*
* @author Manuel Holtgrewe <purestorm at ggnore dot net>
*
* @author Paul M. Jones <pmjones at ciaweb dot net>
*
* @category Text
* 
* @package Text_Wiki
* 
*/

class Text_Wiki_Parse_Anchor extends Text_Wiki_Parse {


	/**
	*
	* The regular expression used to find source text matching this
	* rule.  Looks like a macro: [[# anchor_name]]
	*
	* @access public
	*
	* @var string
	*
	*/

	var $regex = '/(\[\[# )([-_A-Za-z0-9.]+?)( .+)?(\]\])/i';


	/**
	*
	* 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) {

		$name = $matches[2];
		$text = $matches[3];

		$start = $this->wiki->addToken(
			$this->rule,
			array('type' => 'start', 'name' => $name)
		);

		$end = $this->wiki->addToken(
			$this->rule,
			array('type' => 'end', 'name' => $name)
		);

		// done, place the script output directly in the source
		return $start . trim($text) . $end;
	}
}
