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<?php |
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/* |
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* This file is part of the league/commonmark package. |
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* |
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* (c) Colin O'Dell <[email protected]> |
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* (c) Rezo Zero / Ambroise Maupate |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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declare(strict_types=1); |
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namespace League\CommonMark\Extension\Footnote\Parser; |
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use League\CommonMark\Parser\Block\BlockStart; |
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use League\CommonMark\Parser\Block\BlockStartParserInterface; |
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use League\CommonMark\Parser\Cursor; |
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use League\CommonMark\Parser\MarkdownParserStateInterface; |
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use League\CommonMark\Reference\Reference; |
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use League\CommonMark\Util\RegexHelper; |
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final class FootnoteStartParser implements BlockStartParserInterface |
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{ |
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public function tryStart(Cursor $cursor, MarkdownParserStateInterface $parserState): ?BlockStart |
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{ |
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if ($cursor->isIndented()) { |
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return BlockStart::none(); |
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} |
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$match = RegexHelper::matchAll( |
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'/^\[\^([^\n^\]]+)\]\:\s/', |
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$cursor->getLine(), |
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$cursor->getNextNonSpacePosition() |
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); |
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if (! $match) { |
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return BlockStart::none(); |
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} |
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$cursor->advanceToNextNonSpaceOrTab(); |
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$cursor->advanceBy(\strlen($match[0])); |
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$str = $cursor->getRemainder(); |
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\preg_replace('/^\[\^([^\n^\]]+)\]\:\s/', '', $str); |
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if (\preg_match('/^\[\^([^\n^\]]+)\]\:\s/', $match[0], $matches) !== 1) { |
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return BlockStart::none(); |
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} |
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$reference = new Reference($matches[1], $matches[1], $matches[1]); |
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$footnoteParser = new FootnoteParser($reference); |
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return BlockStart::of($footnoteParser)->at($cursor); |
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} |
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} |
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thephpleague /
commonmark
