1 files changed, 52 insertions, 0 deletions

diff --git a/inc/Twig/TokenParser/Extends.php b/inc/Twig/TokenParser/Extends.php
new file mode 100644
index 00000000..f5ecee21
--- /dev/null
+++ b/inc/Twig/TokenParser/Extends.php
@@ -0,0 +1,52 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Extends a template by another one.
+ *
+ * <pre>
+ *  {% extends "base.html" %}
+ * </pre>
+ */
+class Twig_TokenParser_Extends extends Twig_TokenParser
+{
+    /**
+     * Parses a token and returns a node.
+     *
+     * @param Twig_Token $token A Twig_Token instance
+     *
+     * @return Twig_NodeInterface A Twig_NodeInterface instance
+     */
+    public function parse(Twig_Token $token)
+    {
+        if (!$this->parser->isMainScope()) {
+            throw new Twig_Error_Syntax('Cannot extend from a block', $token->getLine(), $this->parser->getFilename());
+        }
+
+        if (null !== $this->parser->getParent()) {
+            throw new Twig_Error_Syntax('Multiple extends tags are forbidden', $token->getLine(), $this->parser->getFilename());
+        }
+        $this->parser->setParent($this->parser->getExpressionParser()->parseExpression());
+
+        $this->parser->getStream()->expect(Twig_Token::BLOCK_END_TYPE);
+    }
+
+    /**
+     * Gets the tag name associated with this token parser.
+     *
+     * @return string The tag name
+     */
+    public function getTag()
+    {
+        return 'extends';
+    }
+}