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<?php |
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declare(strict_types=1); |
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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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* |
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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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namespace League\CommonMark\Parser\Block; |
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use League\CommonMark\Node\Block\AbstractBlock; |
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use League\CommonMark\Node\Block\Document; |
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use League\CommonMark\Node\Block\Paragraph; |
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use League\CommonMark\Parser\Cursor; |
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use League\CommonMark\Reference\ReferenceMapInterface; |
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/** |
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* Parser implementation which ensures everything is added to the root-level Document |
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*/ |
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final class DocumentBlockParser extends AbstractBlockContinueParser |
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{ |
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/** @psalm-readonly */ |
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private Document $document; |
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public function __construct(ReferenceMapInterface $referenceMap) |
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{ |
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$this->document = new Document($referenceMap); |
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} |
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public function getBlock(): Document |
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{ |
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return $this->document; |
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} |
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public function isContainer(): bool |
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{ |
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return true; |
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} |
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public function canContain(AbstractBlock $childBlock): bool |
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{ |
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return true; |
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} |
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public function tryContinue(Cursor $cursor, BlockContinueParserInterface $activeBlockParser): ?BlockContinue |
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{ |
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return BlockContinue::at($cursor); |
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} |
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public function closeBlock(): void |
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{ |
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$this->removeLinkReferenceDefinitions(); |
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} |
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private function removeLinkReferenceDefinitions(): void |
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{ |
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$emptyNodes = []; |
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$walker = $this->document->walker(); |
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while ($event = $walker->next()) { |
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$node = $event->getNode(); |
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// TODO for v3: It would be great if we could find an alternate way to identify such paragraphs. |
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// Unfortunately, we can't simply check for empty paragraphs here because inlines haven't been processed yet, |
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// meaning all paragraphs will appear blank here, and we don't have a way to check the status of the reference parser |
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// which is attached to the (already-closed) paragraph parser. |
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if ($event->isEntering() && $node instanceof Paragraph && $node->onlyContainsLinkReferenceDefinitions) { |
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$emptyNodes[] = $node; |
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} |
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} |
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foreach ($emptyNodes as $node) { |
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$node->detach(); |
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} |
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} |
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} |
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thephpleague /
commonmark
