--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/symfony/src/Symfony/Bundle/TwigBundle/DependencyInjection/Configuration.php	Sat Sep 24 15:40:41 2011 +0200
@@ -0,0 +1,128 @@
+<?php
+
+/*
+ * This file is part of the Symfony framework.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * This source file is subject to the MIT license that is bundled
+ * with this source code in the file LICENSE.
+ */
+
+namespace Symfony\Bundle\TwigBundle\DependencyInjection;
+
+use Symfony\Component\Config\Definition\Builder\ArrayNodeDefinition;
+use Symfony\Component\Config\Definition\Builder\TreeBuilder;
+use Symfony\Component\Config\Definition\ConfigurationInterface;
+
+/**
+ * TwigExtension configuration structure.
+ *
+ * @author Jeremy Mikola <jmikola@gmail.com>
+ */
+class Configuration implements ConfigurationInterface
+{
+    /**
+     * Generates the configuration tree builder.
+     *
+     * @return \Symfony\Component\Config\Definition\Builder\TreeBuilder The tree builder
+     */
+    public function getConfigTreeBuilder()
+    {
+        $treeBuilder = new TreeBuilder();
+        $rootNode = $treeBuilder->root('twig');
+
+        $rootNode
+            ->children()
+                ->scalarNode('exception_controller')->defaultValue('Symfony\\Bundle\\TwigBundle\\Controller\\ExceptionController::showAction')->end()
+            ->end()
+        ;
+
+        $this->addFormSection($rootNode);
+        $this->addGlobalsSection($rootNode);
+        $this->addTwigOptions($rootNode);
+
+        return $treeBuilder;
+    }
+
+    private function addFormSection(ArrayNodeDefinition $rootNode)
+    {
+        $rootNode
+            ->children()
+                ->arrayNode('form')
+                    ->addDefaultsIfNotSet()
+                    ->fixXmlConfig('resource')
+                    ->children()
+                        ->arrayNode('resources')
+                            ->addDefaultsIfNotSet()
+                            ->defaultValue(array('form_div_layout.html.twig'))
+                            ->validate()
+                                ->ifTrue(function($v) { return !in_array('form_div_layout.html.twig', $v); })
+                                ->then(function($v){
+                                    return array_merge(array('form_div_layout.html.twig'), $v);
+                                })
+                            ->end()
+                            ->prototype('scalar')->end()
+                        ->end()
+                    ->end()
+                ->end()
+            ->end()
+        ;
+    }
+
+    private function addGlobalsSection(ArrayNodeDefinition $rootNode)
+    {
+        $rootNode
+            ->fixXmlConfig('global')
+            ->children()
+                ->arrayNode('globals')
+                    ->useAttributeAsKey('key')
+                    ->prototype('array')
+                        ->beforeNormalization()
+                            ->ifTrue(function($v){ return is_string($v) && '@' === substr($v, 0, 1); })
+                            ->then(function($v){ return array('id' => substr($v, 1), 'type' => 'service'); })
+                        ->end()
+                        ->beforeNormalization()
+                            ->ifTrue(function($v){
+                                if (is_array($v)) {
+                                    $keys = array_keys($v);
+                                    sort($keys);
+
+                                    return $keys !== array('id', 'type') && $keys !== array('value');
+                                }
+
+                                return true;
+                            })
+                            ->then(function($v){ return array('value' => $v); })
+                        ->end()
+                        ->children()
+                            ->scalarNode('id')->end()
+                            ->scalarNode('type')
+                                ->validate()
+                                    ->ifNotInArray(array('service'))
+                                    ->thenInvalid('The %s type is not supported')
+                                ->end()
+                            ->end()
+                            ->variableNode('value')->end()
+                        ->end()
+                    ->end()
+                ->end()
+            ->end()
+        ;
+    }
+
+    private function addTwigOptions(ArrayNodeDefinition $rootNode)
+    {
+        $rootNode
+            ->children()
+                ->scalarNode('autoescape')->end()
+                ->scalarNode('base_template_class')->end()
+                ->scalarNode('cache')->defaultValue('%kernel.cache_dir%/twig')->end()
+                ->scalarNode('charset')->defaultValue('%kernel.charset%')->end()
+                ->scalarNode('debug')->defaultValue('%kernel.debug%')->end()
+                ->scalarNode('strict_variables')->end()
+                ->scalarNode('auto_reload')->end()
+            ->end()
+        ;
+    }
+}