<?php /* * This file is part of Twig. * * (c) 2009 Fabien Potencier * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ /** * Defines a variable. * * <pre> * {% set foo = 'foo' %} * * {% set foo = [1, 2] %} * * {% set foo = {'foo': 'bar'} %} * * {% set foo = 'foo' ~ 'bar' %} * * {% set foo, bar = 'foo', 'bar' %} * * {% set foo %}Some content{% endset %} * </pre> */ class Twig_TokenParser_Set 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(); $stream = $this->parser->getStream(); $names = $this->parser->getExpressionParser()->parseAssignmentExpression(); $capture = false; if ($stream->test(Twig_Token::OPERATOR_TYPE, '=')) { $stream->next(); $values = $this->parser->getExpressionParser()->parseMultitargetExpression(); $stream->expect(Twig_Token::BLOCK_END_TYPE); if (count($names) !== count($values)) { throw new Twig_Error_Syntax("When using set, you must have the same number of variables and assignments.", $stream->getCurrent()->getLine(), $stream->getFilename()); } } else { $capture = true; if (count($names) > 1) { throw new Twig_Error_Syntax("When using set with a block, you cannot have a multi-target.", $stream->getCurrent()->getLine(), $stream->getFilename()); } $stream->expect(Twig_Token::BLOCK_END_TYPE); $values = $this->parser->subparse(array($this, 'decideBlockEnd'), true); $stream->expect(Twig_Token::BLOCK_END_TYPE); } return new Twig_Node_Set($capture, $names, $values, $lineno, $this->getTag()); } public function decideBlockEnd(Twig_Token $token) { return $token->test('endset'); } /** * Gets the tag name associated with this token parser. * * @return string The tag name */ public function getTag() { return 'set'; } }