1 <?php

     2 

     3 /*

     4  * This file is part of Twig.

     5  *

     6  * (c) 2010 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  * Imports macros.

    14  *

    15  * <pre>

    16  *   {% from 'forms.html' import forms %}

    17  * </pre>

    18  */

    19 class Twig_TokenParser_From extends Twig_TokenParser

    20 {

    21     /**

    22      * Parses a token and returns a node.

    23      *

    24      * @param Twig_Token $token A Twig_Token instance

    25      *

    26      * @return Twig_NodeInterface A Twig_NodeInterface instance

    27      */

    28     public function parse(Twig_Token $token)

    29     {

    30         $macro = $this->parser->getExpressionParser()->parseExpression();

    31         $stream = $this->parser->getStream();

    32         $stream->expect('import');

    33 

    34         $targets = array();

    35         do {

    36             $name = $stream->expect(Twig_Token::NAME_TYPE)->getValue();

    37 

    38             $alias = $name;

    39             if ($stream->test('as')) {

    40                 $stream->next();

    41 

    42                 $alias = $stream->expect(Twig_Token::NAME_TYPE)->getValue();

    43             }

    44 

    45             $targets[$name] = $alias;

    46 

    47             if (!$stream->test(Twig_Token::PUNCTUATION_TYPE, ',')) {

    48                 break;

    49             }

    50 

    51             $stream->next();

    52         } while (true);

    53 

    54         $stream->expect(Twig_Token::BLOCK_END_TYPE);

    55 

    56         $node = new Twig_Node_Import($macro, new Twig_Node_Expression_AssignName($this->parser->getVarName(), $token->getLine()), $token->getLine(), $this->getTag());

    57 

    58         foreach($targets as $name => $alias) {

    59             $this->parser->addImportedFunction($alias, $name, $node->getNode('var'));

    60         }

    61 

    62         return $node;

    63     }

    64 

    65     /**

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

    67      *

    68      * @param string The tag name

    69      */

    70     public function getTag()

    71     {

    72         return 'from';

    73     }

    74 }