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RegularExpressionViewHelper.php
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RegularExpressionViewHelper.php
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<?php
namespace FluidTYPO3\Vhs\ViewHelpers\Format;
/***************************************************************
* Copyright notice
*
* (c) 2014 Claus Due <claus@namelesscoder.net>
*
* All rights reserved
*
* This script is part of the TYPO3 project. The TYPO3 project is
* free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* The GNU General Public License can be found at
* http://www.gnu.org/copyleft/gpl.html.
*
* This script is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* This copyright notice MUST APPEAR in all copies of the script!
***************************************************************/
use TYPO3\CMS\Fluid\Core\ViewHelper\AbstractViewHelper;
/**
* Formats or gets detected substrings by regular expression.
* Returns matches if `return="TRUE"`, otherwise replaces any
* occurrences of `$pattern`.
* simply returns
*
* @author Claus Due <claus@namelesscoder.net>
* @package Vhs
* @subpackage ViewHelpers\Format
*/
class RegularExpressionViewHelper extends AbstractViewHelper {
/**
* @param string $pattern The regular expression pattern to search for
* @param string $replacement The desired value to insert instead of detected matches
* @param string $subject The subject in which to perform replacements/detection; taken from tag content if not specified.
* @param boolean $return
* @return mixed
*/
public function render($pattern, $replacement, $subject = NULL, $return = FALSE) {
if (NULL === $subject) {
$subject = $this->renderChildren();
}
if (TRUE === $return) {
$returnValue = array();
preg_match($pattern, $subject, $returnValue);
} else {
$returnValue = preg_replace($pattern, $replacement, $subject);
}
return $returnValue;
}
}