shop.balmet.com

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Block.php (2395B)

      1 <?php
      2 
      3 /*
      4  * This file is part of Twig.
      5  *
      6  * (c) 2009 Fabien Potencier
      7  * (c) 2009 Armin Ronacher
      8  *
      9  * For the full copyright and license information, please view the LICENSE
     10  * file that was distributed with this source code.
     11  */
     12 
     13 /**
     14  * Marks a section of a template as being reusable.
     15  *
     16  * <pre>
     17  *  {% block head %}
     18  *    <link rel="stylesheet" href="style.css" />
     19  *    <title>{% block title %}{% endblock %} - My Webpage</title>
     20  *  {% endblock %}
     21  * </pre>
     22  */
     23 class Twig_TokenParser_Block extends Twig_TokenParser
     24 {
     25     public function parse(Twig_Token $token)
     26     {
     27         $lineno = $token->getLine();
     28         $stream = $this->parser->getStream();
     29         $name = $stream->expect(Twig_Token::NAME_TYPE)->getValue();
     30         if ($this->parser->hasBlock($name)) {
     31             throw new Twig_Error_Syntax(sprintf("The block '%s' has already been defined line %d.", $name, $this->parser->getBlock($name)->getLine()), $stream->getCurrent()->getLine(), $stream->getFilename());
     32         }
     33         $this->parser->setBlock($name, $block = new Twig_Node_Block($name, new Twig_Node(array()), $lineno));
     34         $this->parser->pushLocalScope();
     35         $this->parser->pushBlockStack($name);
     36 
     37         if ($stream->nextIf(Twig_Token::BLOCK_END_TYPE)) {
     38             $body = $this->parser->subparse(array($this, 'decideBlockEnd'), true);
     39             if ($token = $stream->nextIf(Twig_Token::NAME_TYPE)) {
     40                 $value = $token->getValue();
     41 
     42                 if ($value != $name) {
     43                     throw new Twig_Error_Syntax(sprintf('Expected endblock for block "%s" (but "%s" given).', $name, $value), $stream->getCurrent()->getLine(), $stream->getFilename());
     44                 }
     45             }
     46         } else {
     47             $body = new Twig_Node(array(
     48                 new Twig_Node_Print($this->parser->getExpressionParser()->parseExpression(), $lineno),
     49             ));
     50         }
     51         $stream->expect(Twig_Token::BLOCK_END_TYPE);
     52 
     53         $block->setNode('body', $body);
     54         $this->parser->popBlockStack();
     55         $this->parser->popLocalScope();
     56 
     57         return new Twig_Node_BlockReference($name, $lineno, $this->getTag());
     58     }
     59 
     60     public function decideBlockEnd(Twig_Token $token)
     61     {
     62         return $token->test('endblock');
     63     }
     64 
     65     public function getTag()
     66     {
     67         return 'block';
     68     }
     69 }