87 lines
2.4 KiB
PHP
87 lines
2.4 KiB
PHP
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<?php
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namespace Symfony\Bundle\TwigBundle\TokenParser;
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use Symfony\Bundle\TwigBundle\Node\TransNode;
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien.potencier@symfony-project.com>
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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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*
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*
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* @author Fabien Potencier <fabien.potencier@symfony-project.com>
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*/
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class TransTokenParser 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 $token)
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{
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$lineno = $token->getLine();
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$stream = $this->parser->getStream();
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$domain = new \Twig_Node_Expression_Constant('messages', $lineno);
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if (!$stream->test(\Twig_Token::BLOCK_END_TYPE)) {
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if (!$stream->test('from')) {
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$body = $this->parser->getExpressionParser()->parseExpression();
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}
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if ($stream->test('from')) {
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$stream->next();
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$domain = $this->parser->getExpressionParser()->parseExpression();
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}
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} else {
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$stream->expect(\Twig_Token::BLOCK_END_TYPE);
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$body = $this->parser->subparse(array($this, 'decideTransFork'));
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}
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$stream->expect(\Twig_Token::BLOCK_END_TYPE);
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$this->checkTransString($body, $lineno);
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return new TransNode($body, $domain, null, $lineno, $this->getTag());
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}
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public function decideTransFork($token)
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{
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return $token->test(array('endtrans'));
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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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* @param string The tag name
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*/
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public function getTag()
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{
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return 'trans';
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}
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protected function checkTransString(\Twig_NodeInterface $body, $lineno)
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{
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foreach ($body as $i => $node) {
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if (
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$node instanceof \Twig_Node_Text
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($node instanceof \Twig_Node_Print && $node->expr instanceof \Twig_Node_Expression_Name)
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) {
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continue;
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}
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throw new \Twig_SyntaxError(sprintf('The text to be translated with "trans" can only contain references to simple variables'), $lineno);
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}
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}
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}
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