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<?php
//
// +----------------------------------------------------------------------+
// | PHP Version 4 |
// +----------------------------------------------------------------------+
// | Copyright (c) 1997-2003 The PHP Group |
// +----------------------------------------------------------------------+
// | This source file is subject to version 2.02 of the PHP license, |
// | that is bundled with this package in the file LICENSE, and is |
// | available at through the world-wide-web at |
// | http://www.php.net/license/2_02.txt. |
// | If you did not receive a copy of the PHP license and are unable to |
// | obtain it through the world-wide-web, please send a note to |
// | license@php.net so we can mail you a copy immediately. |
// +----------------------------------------------------------------------+
// | Author: Alan Knowles <alan@akbkhome.com>
// +----------------------------------------------------------------------+
//
/**
* A Math Filter
*
* enable simple maths to be done in the template
*
* TODO: add an {if:t.xxx%2} type syntax..
*
* @package HTML_Template_Flexy
*
*/
class HTML_Template_Flexy_Compiler_Regex_Math {
/*
* @var string $start the start tag for the template (escaped for regex)
*/
var $start = '\{';
/*
* @var string $stop the stopt tag for the template (escaped for regex)
*/
var $stop = '\}'; //ending template tag
/**
* Standard Set Engine
*
*
* @param object HTML_Template_Flexy the main engine
* @access private
*/
function _set_engine(&$engine) {
}
/*
* allow simple add multiply, divide and subtraction
*
* eg.
* {(12+t.somevar)*2} maps to =(12+$t->somevar)*2
*
* @param string The template
* @access public
*/
function variables ($input) {
$input = preg_replace(
"/".$this->start."([0-9\(\)+*\/-]*)([a-z0-9]+)([0-9\(\)+*\/-]*)".$this->stop."/ie",
"'<?=\\1($'.str_replace('.','->','\\2').')\\3?>'",
$input);
return $input;
}
}
?>
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