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<?php
declare(strict_types=1);
/*
* This file is part of the league/commonmark package.
*
* (c) Colin O'Dell <colinodell@gmail.com>
*
* Original code based on the CommonMark JS reference parser (https://bitly.com/commonmark-js)
* - (c) John MacFarlane
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace League\CommonMark\Extension\CommonMark\Parser\Inline;
use League\CommonMark\Node\Inline\Newline;
use League\CommonMark\Node\Inline\Text;
use League\CommonMark\Parser\Inline\InlineParserInterface;
use League\CommonMark\Parser\Inline\InlineParserMatch;
use League\CommonMark\Parser\InlineParserContext;
use League\CommonMark\Util\RegexHelper;
final class EscapableParser implements InlineParserInterface
{
public function getMatchDefinition(): InlineParserMatch
{
return InlineParserMatch::string('\\');
}
public function parse(InlineParserContext $inlineContext): bool
{
$cursor = $inlineContext->getCursor();
$nextChar = $cursor->peek();
if ($nextChar === "\n") {
$cursor->advanceBy(2);
$inlineContext->getContainer()->appendChild(new Newline(Newline::HARDBREAK));
return true;
}
if ($nextChar !== null && RegexHelper::isEscapable($nextChar)) {
$cursor->advanceBy(2);
$inlineContext->getContainer()->appendChild(new Text($nextChar));
return true;
}
$cursor->advanceBy(1);
$inlineContext->getContainer()->appendChild(new Text('\\'));
return true;
}
}
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