twig implementation

vendor/symfony/twig-bridge/Symfony/Bridge/Twig/Extension/TranslationExtension.php

@@ -0,0 +1,118 @@
+<?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\Extension;
+
+use Symfony\Bridge\Twig\TokenParser\TransTokenParser;
+use Symfony\Bridge\Twig\TokenParser\TransChoiceTokenParser;
+use Symfony\Bridge\Twig\TokenParser\TransDefaultDomainTokenParser;
+use Symfony\Component\Translation\TranslatorInterface;
+use Symfony\Bridge\Twig\NodeVisitor\TranslationNodeVisitor;
+use Symfony\Bridge\Twig\NodeVisitor\TranslationDefaultDomainNodeVisitor;
+
+/**
+ * Provides integration of the Translation component with Twig.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class TranslationExtension extends \Twig_Extension
+{
+    private $translator;
+    private $translationNodeVisitor;
+
+    public function __construct(TranslatorInterface $translator, \Twig_NodeVisitorInterface $translationNodeVisitor = null)
+    {
+        if (!$translationNodeVisitor) {
+            $translationNodeVisitor = new TranslationNodeVisitor();
+        }
+
+        $this->translator = $translator;
+        $this->translationNodeVisitor = $translationNodeVisitor;
+    }
+
+    public function getTranslator()
+    {
+        return $this->translator;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getFilters()
+    {
+        return array(
+            'trans' => new \Twig_Filter_Method($this, 'trans'),
+            'transchoice' => new \Twig_Filter_Method($this, 'transchoice'),
+        );
+    }
+
+    /**
+     * Returns the token parser instance to add to the existing list.
+     *
+     * @return array An array of Twig_TokenParser instances
+     */
+    public function getTokenParsers()
+    {
+        return array(
+            // {% trans %}Symfony is great!{% endtrans %}
+            new TransTokenParser(),
+
+            // {% transchoice count %}
+            //     {0} There is no apples|{1} There is one apple|]1,Inf] There is {{ count }} apples
+            // {% endtranschoice %}
+            new TransChoiceTokenParser(),
+
+            // {% trans_default_domain "foobar" %}
+            new TransDefaultDomainTokenParser(),
+        );
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getNodeVisitors()
+    {
+        return array($this->translationNodeVisitor, new TranslationDefaultDomainNodeVisitor());
+    }
+
+    public function getTranslationNodeVisitor()
+    {
+        return $this->translationNodeVisitor;
+    }
+
+    public function trans($message, array $arguments = array(), $domain = null, $locale = null)
+    {
+        if (null === $domain) {
+            $domain = 'messages';
+        }
+
+        return $this->translator->trans($message, $arguments, $domain, $locale);
+    }
+
+    public function transchoice($message, $count, array $arguments = array(), $domain = null, $locale = null)
+    {
+        if (null === $domain) {
+            $domain = 'messages';
+        }
+
+        return $this->translator->transChoice($message, $count, array_merge(array('%count%' => $count), $arguments), $domain, $locale);
+    }
+
+    /**
+     * Returns the name of the extension.
+     *
+     * @return string The extension name
+     */
+    public function getName()
+    {
+        return 'translator';
+    }
+}