added an autoloader to ease integration

lib/Twig/Extensions/Autoloader.php

@@ -0,0 +1,46 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Autoloads Twig Extensions classes.
+ *
+ * @package    twig
+ * @author     Fabien Potencier <fabien.potencier@symfony-project.com>
+ */
+class Twig_Extensions_Autoloader
+{
+    /**
+     * Registers Twig_Extensions_Autoloader as an SPL autoloader.
+     */
+    static public function register()
+    {
+        ini_set('unserialize_callback_func', 'spl_autoload_call');
+        spl_autoload_register(array(new self, 'autoload'));
+    }
+
+    /**
+     * Handles autoloading of classes.
+     *
+     * @param  string  $class  A class name.
+     *
+     * @return boolean Returns true if the class has been loaded
+     */
+    static public function autoload($class)
+    {
+        if (0 !== strpos($class, 'Twig_Extensions')) {
+            return;
+        }
+
+        if (file_exists($file = dirname(__FILE__).'/../../'.str_replace('_', '/', $class).'.php')) {
+            require $file;
+        }
+    }
+}

test/bootstrap.php

@@ -16,15 +16,5 @@
 require_once TWIG_LIB_DIR.'/Twig/Autoloader.php';
 Twig_Autoloader::register();
 
-function twigExtensionAutoload($class)
-{
-    if (0 !== strpos($class, 'Twig_Extensions')) {
-        return;
-    }
-
-    if (file_exists($file = dirname(__FILE__).'/../lib/'.str_replace('_', '/', $class).'.php')) {
-        require $file;
-    }
-}
-
-spl_autoload_register('twigExtensionAutoload');
+require_once dirname(__FILE__).'/../lib/Twig/Extensions/Autoloader.php';
+Twig_Extensions_Autoloader::register();