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61 lines
1.7 KiB
61 lines
1.7 KiB
<?php
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/*
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* This file is part of Twig.
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*
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* (c) 2009 Fabien Potencier
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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/**
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* Filters a section of a template by applying filters.
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*
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* <pre>
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* {% filter upper %}
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* This text becomes uppercase
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* {% endfilter %}
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* </pre>
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*/
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class Twig_TokenParser_Filter extends Twig_TokenParser
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{
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/**
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* Parses a token and returns a node.
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*
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* @param Twig_Token $token A Twig_Token instance
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*
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* @return Twig_NodeInterface A Twig_NodeInterface instance
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*/
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public function parse(Twig_Token $token)
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{
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$name = $this->parser->getVarName();
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$ref = new Twig_Node_Expression_BlockReference(new Twig_Node_Expression_Constant($name, $token->getLine()), true, $token->getLine(), $this->getTag());
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$filter = $this->parser->getExpressionParser()->parseFilterExpressionRaw($ref, $this->getTag());
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$this->parser->getStream()->expect(Twig_Token::BLOCK_END_TYPE);
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$body = $this->parser->subparse(array($this, 'decideBlockEnd'), true);
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$this->parser->getStream()->expect(Twig_Token::BLOCK_END_TYPE);
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$block = new Twig_Node_Block($name, $body, $token->getLine());
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$this->parser->setBlock($name, $block);
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return new Twig_Node_Print($filter, $token->getLine(), $this->getTag());
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}
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public function decideBlockEnd(Twig_Token $token)
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{
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return $token->test('endfilter');
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}
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/**
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* Gets the tag name associated with this token parser.
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*
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* @return string The tag name
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*/
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public function getTag()
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{
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return 'filter';
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}
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}
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