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File: TransTokenParser.php
<?php /* * Spring Signage Ltd - http://www.springsignage.com * Copyright (C) 2015 Spring Signage Ltd * (TransTokenParser.php) */ namespace Xibo\Twig; class TransTokenParser extends \Twig_TokenParser { /** * Parses a token and returns a node. * * @param \Twig_Token $token A Twig_Token instance * * @return TransNode A Twig_Node instance */ public function parse(\Twig_Token $token) { $lineno = $token->getLine(); $stream = $this->parser->getStream(); $count = null; $plural = null; $notes = null; if (!$stream->test(\Twig_Token::BLOCK_END_TYPE)) { $body = $this->parser->getExpressionParser()->parseExpression(); } else { $stream->expect(\Twig_Token::BLOCK_END_TYPE); $body = $this->parser->subparse(array($this, 'decideForFork')); $next = $stream->next()->getValue(); if ('plural' === $next) { $count = $this->parser->getExpressionParser()->parseExpression(); $stream->expect(\Twig_Token::BLOCK_END_TYPE); $plural = $this->parser->subparse(array($this, 'decideForFork')); if ('notes' === $stream->next()->getValue()) { $stream->expect(\Twig_Token::BLOCK_END_TYPE); $notes = $this->parser->subparse(array($this, 'decideForEnd'), true); } } elseif ('notes' === $next) { $stream->expect(\Twig_Token::BLOCK_END_TYPE); $notes = $this->parser->subparse(array($this, 'decideForEnd'), true); } } $stream->expect(\Twig_Token::BLOCK_END_TYPE); $this->checkTransString($body, $lineno); return new TransNode($body, $plural, $count, $notes, $lineno, $this->getTag()); } public function decideForFork(\Twig_Token $token) { return $token->test(array('plural', 'notes', 'endtrans')); } public function decideForEnd(\Twig_Token $token) { return $token->test('endtrans'); } /** * Gets the tag name associated with this token parser. * * @param string The tag name * * @return string */ public function getTag() { return 'trans'; } protected function checkTransString(\Twig_Node $body, $lineno) { foreach ($body as $i => $node) { if ( $node instanceof \Twig_Node_Text || ($node instanceof \Twig_Node_Print && $node->getNode('expr') instanceof \Twig_Node_Expression_Name) ) { continue; } throw new \Twig_Error_Syntax(sprintf('The text to be translated with "trans" can only contain references to simple variables'), $lineno); } } }