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<?php
/*
* This file is part of Twig.
*
* (c) 2015 Fabien Potencier
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
/**
* Default autoescaping strategy based on file names.
*
* This strategy sets the HTML as the default autoescaping strategy,
* but changes it based on the filename.
*
* Note that there is no runtime performance impact as the
* default autoescaping strategy is set at compilation time.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class Twig_FileExtensionEscapingStrategy
{
/**
* Guesses the best autoescaping strategy based on the file name.
*
* @param string $filename The template file name
*
* @return string|false The escaping strategy name to use or false to disable
*/
public static function guess($filename)
{
if (in_array(substr($filename, -1), array('/', '\\'))) {
return 'html'; // return html for directories
}
if ('.twig' === substr($filename, -5)) {
$filename = substr($filename, 0, -5);
}
$extension = pathinfo($filename, PATHINFO_EXTENSION);
switch ($extension) {
case 'js':
return 'js';
case 'css':
return 'css';
case 'txt':
return false;
default:
return 'html';
}
}
}