Файл: vendor/league/commonmark/src/Extension/Footnote/Parser/FootnoteStartParser.php
Строк: 65
<?php
/*
* This file is part of the league/commonmark package.
*
* (c) Colin O'Dell <colinodell@gmail.com>
* (c) Rezo Zero / Ambroise Maupate
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
declare(strict_types=1);
namespace LeagueCommonMarkExtensionFootnoteParser;
use LeagueCommonMarkParserBlockBlockStart;
use LeagueCommonMarkParserBlockBlockStartParserInterface;
use LeagueCommonMarkParserCursor;
use LeagueCommonMarkParserMarkdownParserStateInterface;
use LeagueCommonMarkReferenceReference;
use LeagueCommonMarkUtilRegexHelper;
final class FootnoteStartParser implements BlockStartParserInterface
{
public function tryStart(Cursor $cursor, MarkdownParserStateInterface $parserState): ?BlockStart
{
if ($cursor->isIndented() || $parserState->getLastMatchedBlockParser()->canHaveLazyContinuationLines()) {
return BlockStart::none();
}
$match = RegexHelper::matchFirst(
'/^[^([^s^]]+)]:(?:s|$)/',
$cursor->getLine(),
$cursor->getNextNonSpacePosition()
);
if (! $match) {
return BlockStart::none();
}
$cursor->advanceToNextNonSpaceOrTab();
$cursor->advanceBy(strlen($match[0]));
$str = $cursor->getRemainder();
preg_replace('/^[^([^s^]]+)]:(?:s|$)/', '', $str);
if (preg_match('/^[^([^s^]]+)]:(?:s|$)/', $match[0], $matches) !== 1) {
return BlockStart::none();
}
$reference = new Reference($matches[1], $matches[1], $matches[1]);
$footnoteParser = new FootnoteParser($reference);
return BlockStart::of($footnoteParser)->at($cursor);
}
}