116 lines
3.5 KiB
PHP
116 lines
3.5 KiB
PHP
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<?php
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/**
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* Copyright (C) 2019 Xibo Signage Ltd
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*
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* Xibo - Digital Signage - http://www.xibo.org.uk
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*
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* This file is part of Xibo.
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*
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* Xibo is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* any later version.
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*
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* Xibo is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with Xibo. If not, see <http://www.gnu.org/licenses/>.
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*/
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namespace Xibo\Twig;
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use Twig\Node\Node;
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use Twig\Token;
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class TransTokenParser extends \Twig\TokenParser\AbstractTokenParser
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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 Token $token A Twig_Token instance
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*
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* @return TransNode A Twig_Node instance
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* @throws \Twig\Error\SyntaxError
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*/
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public function parse(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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$plural = null;
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$notes = null;
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if (!$stream->test(Token::BLOCK_END_TYPE)) {
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$body = $this->parser->getExpressionParser()->parseExpression();
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} else {
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$stream->expect(Token::BLOCK_END_TYPE);
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$body = $this->parser->subparse([$this, 'decideForFork']);
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$next = $stream->next()->getValue();
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if ('plural' === $next) {
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$count = $this->parser->getExpressionParser()->parseExpression();
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$stream->expect(Token::BLOCK_END_TYPE);
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$plural = $this->parser->subparse([$this, 'decideForFork']);
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if ('notes' === $stream->next()->getValue()) {
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$stream->expect(Token::BLOCK_END_TYPE);
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$notes = $this->parser->subparse([$this, 'decideForEnd'], true);
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}
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} elseif ('notes' === $next) {
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$stream->expect(Token::BLOCK_END_TYPE);
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$notes = $this->parser->subparse([$this, 'decideForEnd'], true);
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}
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}
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$stream->expect(Token::BLOCK_END_TYPE);
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$this->checkTransString($body, $lineno);
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return new TransNode($body, $plural, $count, $notes, $lineno, $this->getTag());
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}
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public function
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decideForFork(Token $token)
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{
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return $token->test(array('plural', 'notes', 'endtrans'));
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}
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public function decideForEnd(Token $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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* @return string
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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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/**
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* @param Node $body
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* @param $lineno
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* @throws \Twig\Error\SyntaxError
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*/
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protected function checkTransString(Node $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\TextNode
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($node instanceof \Twig\Node\PrintNode && $node->getNode('expr') instanceof \Twig\Node\Expression\NameExpression)
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) {
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continue;
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}
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throw new \Twig\Error\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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