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80 lines
2.3 KiB
80 lines
2.3 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) 2010 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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class Twig_Extensions_TokenParser_Trans 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 = $this->parser->getStream();
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$count = null;
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$plural = null;
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if (!$stream->test(Twig_Token::BLOCK_END_TYPE)) {
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$body = $this->parser->getExpressionParser()->parseExpression();
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} else {
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$stream->expect(Twig_Token::BLOCK_END_TYPE);
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$body = $this->parser->subparse(array($this, 'decideForFork'));
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if ('plural' === $stream->next()->getValue()) {
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$count = $this->parser->getExpressionParser()->parseExpression();
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$stream->expect(Twig_Token::BLOCK_END_TYPE);
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$plural = $this->parser->subparse(array($this, 'decideForEnd'), true);
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}
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}
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$stream->expect(Twig_Token::BLOCK_END_TYPE);
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$this->checkTransString($body, $lineno);
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return new Twig_Extensions_Node_Trans($body, $plural, $count, $lineno, $this->getTag());
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}
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public function decideForFork($token)
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{
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return $token->test(array('plural', 'endtrans'));
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}
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public function decideForEnd($token)
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{
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return $token->test('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->getNode('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_Error_Syntax(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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