First commit, version 0.1 beta base nibiru framework

core/l/Twig/TokenParser/Extends.php

@@ -0,0 +1,44 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ * (c) 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>
+ *
+ * @final
+ */
+class Twig_TokenParser_Extends extends Twig_TokenParser
+{
+    public function parse(Twig_Token $token)
+    {
+        $stream = $this->parser->getStream();
+
+        if (!$this->parser->isMainScope()) {
+            throw new Twig_Error_Syntax('Cannot extend from a block.', $token->getLine(), $stream->getSourceContext());
+        }
+
+        if (null !== $this->parser->getParent()) {
+            throw new Twig_Error_Syntax('Multiple extends tags are forbidden.', $token->getLine(), $stream->getSourceContext());
+        }
+        $this->parser->setParent($this->parser->getExpressionParser()->parseExpression());
+
+        $stream->expect(Twig_Token::BLOCK_END_TYPE);
+    }
+
+    public function getTag()
+    {
+        return 'extends';
+    }
+}