File "TransTokenParser.php"

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<?php

/*
 * This file is part of Twig.
 *
 * (c) 2010-2019 Fabien Potencier
 * (c) 2019 phpMyAdmin contributors
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace PhpMyAdmin\Twig\Extensions\TokenParser;

use PhpMyAdmin\Twig\Extensions\Node\TransNode;
use Twig\Error\SyntaxError;
use Twig\Node\Expression\NameExpression;
use Twig\Node\Node;
use Twig\Node\PrintNode;
use Twig\Node\TextNode;
use Twig\Token;
use Twig\TokenParser\AbstractTokenParser;

class TransTokenParser extends AbstractTokenParser
{
    /**
     * {@inheritdoc}
     */
    public function parse(Token $token)
    {
        $lineno = $token->getLine();
        $stream = $this->parser->getStream();
        $count = null;
        $plural = null;
        $notes = null;

        if (!$stream->test(Token::BLOCK_END_TYPE)) {
            $body = $this->parser->getExpressionParser()->parseExpression();
        } else {
            $stream->expect(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(Token::BLOCK_END_TYPE);
                $plural = $this->parser->subparse(array($this, 'decideForFork'));

                if ('notes' === $stream->next()->getValue()) {
                    $stream->expect(Token::BLOCK_END_TYPE);
                    $notes = $this->parser->subparse(array($this, 'decideForEnd'), true);
                }
            } elseif ('notes' === $next) {
                $stream->expect(Token::BLOCK_END_TYPE);
                $notes = $this->parser->subparse(array($this, 'decideForEnd'), true);
            }
        }

        $stream->expect(Token::BLOCK_END_TYPE);

        $this->checkTransString($body, $lineno);

        return new TransNode($body, $plural, $count, $notes, $lineno, $this->getTag());
    }

    public function decideForFork(Token $token)
    {
        return $token->test(array('plural', 'notes', 'endtrans'));
    }

    public function decideForEnd(Token $token)
    {
        return $token->test('endtrans');
    }

    /**
     * {@inheritdoc}
     */
    public function getTag()
    {
        return 'trans';
    }

    protected function checkTransString(Node $body, $lineno)
    {
        foreach ($body as $i => $node) {
            if (
                $node instanceof TextNode
                ||
                ($node instanceof PrintNode && $node->getNode('expr') instanceof NameExpression)
            ) {
                continue;
            }

            throw new SyntaxError(sprintf('The text to be translated with "trans" can only contain references to simple variables'), $lineno);
        }
    }
}