initial import

lib/classes/Twig/TokenParser/For.php

@@ -0,0 +1,75 @@
+<?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.
+ */
+class Twig_TokenParser_For 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)
+    {
+        $lineno = $token->getLine();
+        $targets = $this->parser->getExpressionParser()->parseAssignmentExpression();
+        $this->parser->getStream()->expect('in');
+        $seq = $this->parser->getExpressionParser()->parseExpression();
+
+        $withLoop = true;
+        if ($this->parser->getStream()->test('without')) {
+            $this->parser->getStream()->next();
+            $this->parser->getStream()->expect('loop');
+            $withLoop = false;
+        }
+
+        $this->parser->getStream()->expect(Twig_Token::BLOCK_END_TYPE);
+        $body = $this->parser->subparse(array($this, 'decideForFork'));
+        if ($this->parser->getStream()->next()->getValue() == 'else') {
+            $this->parser->getStream()->expect(Twig_Token::BLOCK_END_TYPE);
+            $else = $this->parser->subparse(array($this, 'decideForEnd'), true);
+        } else {
+            $else = null;
+        }
+        $this->parser->getStream()->expect(Twig_Token::BLOCK_END_TYPE);
+
+        if (count($targets) > 1) {
+            $keyTarget = $targets->getNode(0);
+            $valueTarget = $targets->getNode(1);
+        } else {
+            $keyTarget = new Twig_Node_Expression_AssignName('_key', $lineno);
+            $valueTarget = $targets->getNode(0);
+        }
+
+        return new Twig_Node_For($keyTarget, $valueTarget, $seq, $body, $else, $withLoop, $lineno, $this->getTag());
+    }
+
+    public function decideForFork($token)
+    {
+        return $token->test(array('else', 'endfor'));
+    }
+
+    public function decideForEnd($token)
+    {
+        return $token->test('endfor');
+    }
+
+    /**
+     * Gets the tag name associated with this token parser.
+     *
+     * @param string The tag name
+     */
+    public function getTag()
+    {
+        return 'for';
+    }
+}