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diff --git a/vendor/twig/twig/lib/Twig/TokenParser/Block.php b/vendor/twig/twig/lib/Twig/TokenParser/Block.php
new file mode 100644
index 000000000..9dae2b904
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/TokenParser/Block.php
@@ -0,0 +1,71 @@
+<?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.
+ */
+
+/**
+ * Marks a section of a template as being reusable.
+ *
+ * <pre>
+ *  {% block head %}
+ *    <link rel="stylesheet" href="style.css" />
+ *    <title>{% block title %}{% endblock %} - My Webpage</title>
+ *  {% endblock %}
+ * </pre>
+ *
+ * @final
+ */
+class Twig_TokenParser_Block extends Twig_TokenParser
+{
+    public function parse(Twig_Token $token)
+    {
+        $lineno = $token->getLine();
+        $stream = $this->parser->getStream();
+        $name = $stream->expect(Twig_Token::NAME_TYPE)->getValue();
+        if ($this->parser->hasBlock($name)) {
+            throw new Twig_Error_Syntax(sprintf("The block '%s' has already been defined line %d.", $name, $this->parser->getBlock($name)->getTemplateLine()), $stream->getCurrent()->getLine(), $stream->getSourceContext());
+        }
+        $this->parser->setBlock($name, $block = new Twig_Node_Block($name, new Twig_Node(array()), $lineno));
+        $this->parser->pushLocalScope();
+        $this->parser->pushBlockStack($name);
+
+        if ($stream->nextIf(Twig_Token::BLOCK_END_TYPE)) {
+            $body = $this->parser->subparse(array($this, 'decideBlockEnd'), true);
+            if ($token = $stream->nextIf(Twig_Token::NAME_TYPE)) {
+                $value = $token->getValue();
+
+                if ($value != $name) {
+                    throw new Twig_Error_Syntax(sprintf('Expected endblock for block "%s" (but "%s" given).', $name, $value), $stream->getCurrent()->getLine(), $stream->getSourceContext());
+                }
+            }
+        } else {
+            $body = new Twig_Node(array(
+                new Twig_Node_Print($this->parser->getExpressionParser()->parseExpression(), $lineno),
+            ));
+        }
+        $stream->expect(Twig_Token::BLOCK_END_TYPE);
+
+        $block->setNode('body', $body);
+        $this->parser->popBlockStack();
+        $this->parser->popLocalScope();
+
+        return new Twig_Node_BlockReference($name, $lineno, $this->getTag());
+    }
+
+    public function decideBlockEnd(Twig_Token $token)
+    {
+        return $token->test('endblock');
+    }
+
+    public function getTag()
+    {
+        return 'block';
+    }
+}