CORE_V5 // Event

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Editing: LooseDescriptionHandler.php

<?php

declare(strict_types=1);

/*
 * This file is part of the league/commonmark package.
 *
 * (c) Colin O'Dell <colinodell@gmail.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace League\CommonMark\Extension\DescriptionList\Event;

use League\CommonMark\Event\DocumentParsedEvent;
use League\CommonMark\Extension\DescriptionList\Node\Description;
use League\CommonMark\Extension\DescriptionList\Node\DescriptionList;
use League\CommonMark\Extension\DescriptionList\Node\DescriptionTerm;
use League\CommonMark\Node\Block\Paragraph;
use League\CommonMark\Node\Inline\Newline;
use League\CommonMark\Node\NodeIterator;

final class LooseDescriptionHandler
{
    public function __invoke(DocumentParsedEvent $event): void
    {
        foreach ($event->getDocument()->iterator(NodeIterator::FLAG_BLOCKS_ONLY) as $description) {
            if (! $description instanceof Description) {
                continue;
            }

// Does this description need to be added to a list?
            if (! $description->parent() instanceof DescriptionList) {
                $list = new DescriptionList();
                // Taking any preceding paragraphs with it
                if (($paragraph = $description->previous()) instanceof Paragraph) {
                    $list->appendChild($paragraph);
                }

$description->replaceWith($list);
                $list->appendChild($description);
            }

// Is this description preceded by a paragraph that should really be a term?
            if (! (($paragraph = $description->previous()) instanceof Paragraph)) {
                continue;
            }

// Convert the paragraph into one or more terms
            $term = new DescriptionTerm();
            $paragraph->replaceWith($term);

foreach ($paragraph->children() as $child) {
                if ($child instanceof Newline) {
                    $newTerm = new DescriptionTerm();
                    $term->insertAfter($newTerm);
                    $term = $newTerm;
                    continue;
                }

$term->appendChild($child);
            }
        }
    }
}

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