<?php
declare(strict_types=1);
namespace League\CommonMark\Extension\DescriptionList\Event;
use League\CommonMark\Event\DocumentParsedEvent;
use League\CommonMark\Extension\DescriptionList\Node\DescriptionList;
use League\CommonMark\Node\NodeIterator;
final class ConsecutiveDescriptionListMerger
{
public function __invoke(DocumentParsedEvent $event): void
{
foreach ($event->getDocument()->iterator(NodeIterator::FLAG_BLOCKS_ONLY) as $node) {
if (! $node instanceof DescriptionList) {
continue;
}
if (! ($prev = $node->previous()) instanceof DescriptionList) {
continue;
}
foreach ($node->children() as $child) {
$prev->appendChild($child);
}
$node->detach();
}
}
}