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<?php
/*
* 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\Inline\Parser;
use League\CommonMark\Inline\Element\Newline;
use League\CommonMark\Inline\Element\Text;
use League\CommonMark\InlineParserContext;
use League\CommonMark\Util\RegexHelper;
final class EscapableParser implements InlineParserInterface
{
/**
* @return string[]
*/
public function getCharacters(): array
{
return ['\\'];
}
/**
* @param InlineParserContext $inlineContext
*
* @return bool
*/
public function parse(InlineParserContext $inlineContext): bool
{
$cursor = $inlineContext->getCursor();
$nextChar = $cursor->peek();
if ($nextChar === "\n") {
$cursor->advanceBy(2);
$inlineContext->getContainer()->appendChild(new Newline(Newline::HARDBREAK));
return true;
} elseif ($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;
}
}