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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\Extension\DescriptionList\Event; |
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use League\CommonMark\Event\DocumentParsedEvent; |
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use League\CommonMark\Extension\DescriptionList\Node\Description; |
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use League\CommonMark\Extension\DescriptionList\Node\DescriptionList; |
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use League\CommonMark\Extension\DescriptionList\Node\DescriptionTerm; |
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use League\CommonMark\Node\Block\Paragraph; |
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use League\CommonMark\Node\Inline\Newline; |
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final class LooseDescriptionHandler |
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{ |
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public function __invoke(DocumentParsedEvent $event): void |
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{ |
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$walker = $event->getDocument()->walker(); |
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while ($e = $walker->next()) { |
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// Wait until we're exiting a node |
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if ($e->isEntering()) { |
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continue; |
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} |
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$description = $e->getNode(); |
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if (! $description instanceof Description) { |
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continue; |
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} |
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// Does this description need to be added to a list? |
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if (! $description->parent() instanceof DescriptionList) { |
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$list = new DescriptionList(); |
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// Taking any preceding paragraphs with it |
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if (($paragraph = $description->previous()) instanceof Paragraph) { |
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$list->appendChild($paragraph); |
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} |
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$description->replaceWith($list); |
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$list->appendChild($description); |
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} |
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// Is this description preceded by a paragraph that should really be a term? |
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if (! (($paragraph = $description->previous()) instanceof Paragraph)) { |
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continue; |
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} |
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// Convert the paragraph into one or more terms |
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$term = new DescriptionTerm(); |
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$paragraph->replaceWith($term); |
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foreach ($paragraph->children() as $child) { |
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if ($child instanceof Newline) { |
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$newTerm = new DescriptionTerm(); |
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$term->insertAfter($newTerm); |
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$term = $newTerm; |
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continue; |
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} |
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$term->appendChild($child); |
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} |
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} |
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} |
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} |
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thephpleague /
commonmark
