From 4f5b44bd3bd490309eb2ba7b44df4769816ba729 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Nicolas=20L=C5=93uillet?= <nicolas.loeuillet@gmail.com>
Date: Sat, 3 Aug 2013 19:26:54 +0200
Subject: twig implementation

---
 .../Twig/NodeVisitor/TranslationNodeVisitor.php    | 137 +++++++++++++++++++++
 1 file changed, 137 insertions(+)
 create mode 100644 vendor/symfony/twig-bridge/Symfony/Bridge/Twig/NodeVisitor/TranslationNodeVisitor.php

(limited to 'vendor/symfony/twig-bridge/Symfony/Bridge/Twig/NodeVisitor/TranslationNodeVisitor.php')

diff --git a/vendor/symfony/twig-bridge/Symfony/Bridge/Twig/NodeVisitor/TranslationNodeVisitor.php b/vendor/symfony/twig-bridge/Symfony/Bridge/Twig/NodeVisitor/TranslationNodeVisitor.php
new file mode 100644
index 00000000..592c2506
--- /dev/null
+++ b/vendor/symfony/twig-bridge/Symfony/Bridge/Twig/NodeVisitor/TranslationNodeVisitor.php
@@ -0,0 +1,137 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Bridge\Twig\NodeVisitor;
+
+use Symfony\Bridge\Twig\Node\TransNode;
+
+/**
+ * TranslationNodeVisitor extracts translation messages.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class TranslationNodeVisitor implements \Twig_NodeVisitorInterface
+{
+    const UNDEFINED_DOMAIN = '_undefined';
+
+    private $enabled = false;
+    private $messages = array();
+
+    public function enable()
+    {
+        $this->enabled = true;
+        $this->messages = array();
+    }
+
+    public function disable()
+    {
+        $this->enabled = false;
+        $this->messages = array();
+    }
+
+    public function getMessages()
+    {
+        return $this->messages;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function enterNode(\Twig_NodeInterface $node, \Twig_Environment $env)
+    {
+        if (!$this->enabled) {
+            return $node;
+        }
+
+        if (
+            $node instanceof \Twig_Node_Expression_Filter &&
+            'trans' === $node->getNode('filter')->getAttribute('value') &&
+            $node->getNode('node') instanceof \Twig_Node_Expression_Constant
+        ) {
+            // extract constant nodes with a trans filter
+            $this->messages[] = array(
+                $node->getNode('node')->getAttribute('value'),
+                $this->getReadDomainFromArguments($node->getNode('arguments'), 1),
+            );
+        } elseif (
+            $node instanceof \Twig_Node_Expression_Filter &&
+            'transchoice' === $node->getNode('filter')->getAttribute('value') &&
+            $node->getNode('node') instanceof \Twig_Node_Expression_Constant
+        ) {
+            // extract constant nodes with a trans filter
+            $this->messages[] = array(
+                $node->getNode('node')->getAttribute('value'),
+                $this->getReadDomainFromArguments($node->getNode('arguments'), 2),
+            );
+        } elseif ($node instanceof TransNode) {
+            // extract trans nodes
+            $this->messages[] = array(
+                $node->getNode('body')->getAttribute('data'),
+                $this->getReadDomainFromNode($node->getNode('domain')),
+            );
+        }
+
+        return $node;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function leaveNode(\Twig_NodeInterface $node, \Twig_Environment $env)
+    {
+        return $node;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getPriority()
+    {
+        return 0;
+    }
+
+    /**
+     * @param \Twig_Node $arguments
+     * @param int        $index
+     *
+     * @return string|null
+     */
+    private function getReadDomainFromArguments(\Twig_Node $arguments, $index)
+    {
+        if ($arguments->hasNode('domain')) {
+            $argument = $arguments->getNode('domain');
+        } elseif ($arguments->hasNode($index)) {
+            $argument = $arguments->getNode($index);
+        } else {
+            return null;
+        }
+
+        return $this->getReadDomainFromNode($argument);
+    }
+
+    /**
+     * @param \Twig_Node $node
+     *
+     * @return string|null
+     */
+    private function getReadDomainFromNode(\Twig_Node $node = null)
+    {
+        if (null === $node) {
+            return null;
+        }
+
+        if ($node instanceof \Twig_Node_Expression_Constant) {
+            return $node->getAttribute('value');
+        }
+
+        return self::UNDEFINED_DOMAIN;
+    }
+}
-- 
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