AutoEscapeTokenParser.php
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AutoEscapeTokenParser.php
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	<?php

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

	namespace Twig\TokenParser;

	use Twig\Error\SyntaxError;
	use Twig\Node\AutoEscapeNode;
	use Twig\Node\Expression\ConstantExpression;
	use Twig\Node\Node;
	use Twig\Token;

	/**
	* Marks a section of a template to be escaped or not.
	*
	* @internal
	*/
	final class AutoEscapeTokenParser extends AbstractTokenParser
	{
	public function parse(Token $token): Node
	{
	$lineno = $token->getLine();
	$stream = $this->parser->getStream();

	if ($stream->test(Token::BLOCK_END_TYPE)) {
	$value = 'html';
	} else {
	$expr = $this->parser->getExpressionParser()->parseExpression();
	if (!$expr instanceof ConstantExpression) {
	throw new SyntaxError('An escaping strategy must be a string or false.', $stream->getCurrent()->getLine(), $stream->getSourceContext());
	}
	$value = $expr->getAttribute('value');
	}

	$stream->expect(Token::BLOCK_END_TYPE);
	$body = $this->parser->subparse([$this, 'decideBlockEnd'], true);
	$stream->expect(Token::BLOCK_END_TYPE);

	return new AutoEscapeNode($value, $body, $lineno);
	}

	public function decideBlockEnd(Token $token): bool
	{
	return $token->test('endautoescape');
	}

	public function getTag(): string
	{
	return 'autoescape';
	}
	}