1 <?php

     2 

     3 /*

     4  * This file is part of Twig.

     5  *

     6  * (c) 2009 Fabien Potencier

     7  *

     8  * For the full copyright and license information, please view the LICENSE

     9  * file that was distributed with this source code.

    10  */

    11 

    12 /**

    13  * Defines a macro.

    14  *

    15  * <pre>

    16  * {% macro input(name, value, type, size) %}

    17  *    <input type="{{ type|default('text') }}" name="{{ name }}" value="{{ value|e }}" size="{{ size|default(20) }}" />

    18  * {% endmacro %}

    19  * </pre>

    20  */

    21 class Twig_TokenParser_Macro extends Twig_TokenParser

    22 {

    23     /**

    24      * Parses a token and returns a node.

    25      *

    26      * @param Twig_Token $token A Twig_Token instance

    27      *

    28      * @return Twig_NodeInterface A Twig_NodeInterface instance

    29      */

    30     public function parse(Twig_Token $token)

    31     {

    32         $lineno = $token->getLine();

    33         $name = $this->parser->getStream()->expect(Twig_Token::NAME_TYPE)->getValue();

    34 

    35         $arguments = $this->parser->getExpressionParser()->parseArguments();

    36 

    37         $this->parser->getStream()->expect(Twig_Token::BLOCK_END_TYPE);

    38         $this->parser->pushLocalScope();

    39         $body = $this->parser->subparse(array($this, 'decideBlockEnd'), true);

    40         if ($this->parser->getStream()->test(Twig_Token::NAME_TYPE)) {

    41             $value = $this->parser->getStream()->next()->getValue();

    42 

    43             if ($value != $name) {

    44                 throw new Twig_Error_Syntax(sprintf("Expected endmacro for macro '$name' (but %s given)", $value), $lineno);

    45             }

    46         }

    47         $this->parser->popLocalScope();

    48         $this->parser->getStream()->expect(Twig_Token::BLOCK_END_TYPE);

    49 

    50         $this->parser->setMacro($name, new Twig_Node_Macro($name, $body, $arguments, $lineno, $this->getTag()));

    51 

    52         return null;

    53     }

    54 

    55     public function decideBlockEnd(Twig_Token $token)

    56     {

    57         return $token->test('endmacro');

    58     }

    59 

    60     /**

    61      * Gets the tag name associated with this token parser.

    62      *

    63      * @param string The tag name

    64      */

    65     public function getTag()

    66     {

    67         return 'macro';

    68     }

    69 }