public function parse(Parser $parser, Stream $stream)
{
$node = new TagNode($this);
$loopVar = $this->parseVariableNode($stream);
if ($stream->nextTokenIf(Token::PUNCTUATION, [':', '=>'])) {
$node->addChild($loopVar, 'loop_key');
$loopVar = $this->parseVariableNode($stream);
}
$node->addChild($loopVar, 'loop_variable_0');
$i = 1;
while ($stream->nextTokenIf(Token::PUNCTUATION, ',')) {
$node->addChild($this->parseVariableNode($stream), 'loop_variable_' . $i++);
}
$node->addData('variables', $i);
$stream->expect(Token::OPERATOR, 'in');
$node->addChild($parser->parseExpression($stream), 'source');
$node->addChild($parser->parseBlock($stream, ['else', 'endfor']), 'loop_body');
if ($stream->next()->test(Token::TAG_END, 'else')) {
$node->addChild($parser->parseBlock($stream, 'endfor'), 'else');
$stream->expect(Token::TAG_END);
}
return $node;
}
