mirror of
https://github.com/vichan-devel/vichan.git
synced 2024-12-11 07:16:10 +01:00
94 lines
2.6 KiB
PHP
94 lines
2.6 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.
|
|
*/
|
|
|
|
/**
|
|
* Tests a condition.
|
|
*
|
|
* <pre>
|
|
* {% if users %}
|
|
* <ul>
|
|
* {% for user in users %}
|
|
* <li>{{ user.username|e }}</li>
|
|
* {% endfor %}
|
|
* </ul>
|
|
* {% endif %}
|
|
* </pre>
|
|
*/
|
|
class Twig_TokenParser_If 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();
|
|
$expr = $this->parser->getExpressionParser()->parseExpression();
|
|
$this->parser->getStream()->expect(Twig_Token::BLOCK_END_TYPE);
|
|
$body = $this->parser->subparse(array($this, 'decideIfFork'));
|
|
$tests = array($expr, $body);
|
|
$else = null;
|
|
|
|
$end = false;
|
|
while (!$end) {
|
|
switch ($this->parser->getStream()->next()->getValue()) {
|
|
case 'else':
|
|
$this->parser->getStream()->expect(Twig_Token::BLOCK_END_TYPE);
|
|
$else = $this->parser->subparse(array($this, 'decideIfEnd'));
|
|
break;
|
|
|
|
case 'elseif':
|
|
$expr = $this->parser->getExpressionParser()->parseExpression();
|
|
$this->parser->getStream()->expect(Twig_Token::BLOCK_END_TYPE);
|
|
$body = $this->parser->subparse(array($this, 'decideIfFork'));
|
|
$tests[] = $expr;
|
|
$tests[] = $body;
|
|
break;
|
|
|
|
case 'endif':
|
|
$end = true;
|
|
break;
|
|
|
|
default:
|
|
throw new Twig_Error_Syntax(sprintf('Unexpected end of template. Twig was looking for the following tags "else", "elseif", or "endif" to close the "if" block started at line %d)', $lineno), -1);
|
|
}
|
|
}
|
|
|
|
$this->parser->getStream()->expect(Twig_Token::BLOCK_END_TYPE);
|
|
|
|
return new Twig_Node_If(new Twig_Node($tests), $else, $lineno, $this->getTag());
|
|
}
|
|
|
|
public function decideIfFork(Twig_Token $token)
|
|
{
|
|
return $token->test(array('elseif', 'else', 'endif'));
|
|
}
|
|
|
|
public function decideIfEnd(Twig_Token $token)
|
|
{
|
|
return $token->test(array('endif'));
|
|
}
|
|
|
|
/**
|
|
* Gets the tag name associated with this token parser.
|
|
*
|
|
* @param string The tag name
|
|
*/
|
|
public function getTag()
|
|
{
|
|
return 'if';
|
|
}
|
|
}
|