1 <?php

     2 

     3 /*

     4  * This file is part of Twig.

     5  *

     6  * (c) 2009 Fabien Potencier

     7  *

     8  * For the full copyright and license information, please view the LICENSE

     9  * file that was distributed with this source code.

    10  */

    11 

    12 /**

    13  * Autoloads Twig classes.

    14  *

    15  * @package twig

    16  * @author  Fabien Potencier <fabien@symfony.com>

    17  */

    18 class Twig_Autoloader

    19 {

    20     /**

    21      * Registers Twig_Autoloader as an SPL autoloader.

    22      */

    23     static public function register()

    24     {

    25         ini_set('unserialize_callback_func', 'spl_autoload_call');

    26         spl_autoload_register(array(new self, 'autoload'));

    27     }

    28 

    29     /**

    30      * Handles autoloading of classes.

    31      *

    32      * @param  string  $class  A class name.

    33      *

    34      * @return boolean Returns true if the class has been loaded

    35      */

    36     static public function autoload($class)

    37     {

    38         if (0 !== strpos($class, 'Twig')) {

    39             return;

    40         }

    41 

    42         if (is_file($file = dirname(__FILE__).'/../'.str_replace(array('_', "\0"), array('/', ''), $class).'.php')) {

    43             require $file;

    44         }

    45     }

    46 }