<?php
// (c) Copyright 2002-2012 by authors of the Tiki Wiki CMS Groupware Project
// 
// All Rights Reserved. See copyright.txt for details and a complete list of authors.
// Licensed under the GNU LESSER GENERAL PUBLIC LICENSE. See license.txt for details.
// $Id: wikiplugin_regex.php 40035 2012-03-04 21:22:53Z gezzzan $

function wikiplugin_regex_info()
{
	return array(
		'name' => tra('Regular Expression'),
		'documentation' => 'PluginRegex',
		'validate' => 'all',
		'description' => tra('Perform a regular expression search and replace'),
		'prefs' => array( 'wikiplugin_regex' ),
		'body' => tra('Each line of content is evaluated separately'),
		'icon' => 'img/icons/text_replace.png',
		'params' => array(
			'pageName' => array(
				'required' => true,
				'name' => tra('Page name'),
				'description' => tra('Name of page containing search and replace expressions separated by two colons. Example of syntax on that page: /search pattern/::replacement text'),
				'default' => 'pageName',
			),
		),
	);
}

function wikiplugin_regex($data, $params)
{
	global $tikilib;
	
	extract($params, EXTR_SKIP);
	$pageName = (isset($pageName)) ? $pageName : 'pageName';//gets a page
	$info = $tikilib->get_page_info($pageName);
	$content=$info['data']; 
	$lines = explode("\n", $content); // separate lines into array no emtpy lines at beginning mid or end
	$i = 0;
	foreach ($lines as $line) {
		list($pattern[$i],$replace[$i])=explode("::", $line);// use two colons to separate your find and replace
		$i++;
	}
	
	$data=preg_replace($pattern, $replace, $data);
	$data = trim($data);
	return $data;
}
