87 lines
2.5 KiB
PHP
87 lines
2.5 KiB
PHP
|
<?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.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Loops over each item of a sequence.
|
||
|
|
*
|
||
|
|
* <pre>
|
||
|
|
* <ul>
|
||
|
|
* {% for user in users %}
|
||
|
|
* <li>{{ user.username|e }}</li>
|
||
|
|
* {% endfor %}
|
||
|
|
* </ul>
|
||
|
|
* </pre>
|
||
|
|
*/
|
||
|
|
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(Twig_Token::OPERATOR_TYPE, 'in');
|
||
|
|
$seq = $this->parser->getExpressionParser()->parseExpression();
|
||
|
|
|
||
|
|
$ifexpr = null;
|
||
|
|
if ($this->parser->getStream()->test(Twig_Token::NAME_TYPE, 'if')) {
|
||
|
|
$this->parser->getStream()->next();
|
||
|
|
$ifexpr = $this->parser->getExpressionParser()->parseExpression();
|
||
|
|
}
|
||
|
|
|
||
|
|
$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, $ifexpr, $body, $else, $lineno, $this->getTag());
|
||
|
|
}
|
||
|
|
|
||
|
|
public function decideForFork(Twig_Token $token)
|
||
|
|
{
|
||
|
|
return $token->test(array('else', 'endfor'));
|
||
|
|
}
|
||
|
|
|
||
|
|
public function decideForEnd(Twig_Token $token)
|
||
|
|
{
|
||
|
|
return $token->test('endfor');
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Gets the tag name associated with this token parser.
|
||
|
|
*
|
||
|
|
* @param string The tag name
|
||
|
|
*/
|
||
|
|
public function getTag()
|
||
|
|
{
|
||
|
|
return 'for';
|
||
|
|
}
|
||
|
|
}
|