<?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 assignements.", $lineno);
}
} else {
$capture = true;
if (count($names) > 1) {
throw new Twig_Error_Syntax("When using set with a block, you cannot have a multi-target.", $lineno);
}
$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';
}
}