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