Viewing file:  FootnoteStartParser.php (1.75 KB) -rwxrwxr-x
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<?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 League\CommonMark\Extension\Footnote\Parser;
use League\CommonMark\Parser\Block\BlockStart;
use League\CommonMark\Parser\Block\BlockStartParserInterface;
use League\CommonMark\Parser\Cursor;
use League\CommonMark\Parser\MarkdownParserStateInterface;
use League\CommonMark\Reference\Reference;
use League\CommonMark\Util\RegexHelper;
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);
}
}
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