Файл: vendor/league/commonmark/src/Extension/Footnote/Event/FixOrphanedFootnotesAndRefsListener.php
Строк: 128
<?php
/*
* 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.
*/
declare(strict_types=1);
namespace LeagueCommonMarkExtensionFootnoteEvent;
use LeagueCommonMarkEventDocumentParsedEvent;
use LeagueCommonMarkExtensionFootnoteNodeFootnote;
use LeagueCommonMarkExtensionFootnoteNodeFootnoteRef;
use LeagueCommonMarkNodeBlockDocument;
use LeagueCommonMarkNodeInlineText;
final class FixOrphanedFootnotesAndRefsListener
{
public function onDocumentParsed(DocumentParsedEvent $event): void
{
$document = $event->getDocument();
$map = $this->buildMapOfKnownFootnotesAndRefs($document);
foreach ($map['_flat'] as $node) {
if ($node instanceof FootnoteRef && ! isset($map[Footnote::class][$node->getReference()->getLabel()])) {
// Found an orphaned FootnoteRef without a corresponding Footnote
// Restore the original footnote ref text
$node->replaceWith(new Text(sprintf('[^%s]', $node->getReference()->getLabel())));
}
// phpcs:disable SlevomatCodingStandard.ControlStructures.EarlyExit.EarlyExitNotUsed
if ($node instanceof Footnote && ! isset($map[FootnoteRef::class][$node->getReference()->getLabel()])) {
// Found an orphaned Footnote without a corresponding FootnoteRef
// Remove the footnote
$node->detach();
}
}
}
/** @phpstan-ignore-next-line */
private function buildMapOfKnownFootnotesAndRefs(Document $document): array // @phpcs:ignore
{
$map = [
Footnote::class => [],
FootnoteRef::class => [],
'_flat' => [],
];
foreach ($document->iterator() as $node) {
if ($node instanceof Footnote) {
$map[Footnote::class][$node->getReference()->getLabel()] = true;
$map['_flat'][] = $node;
} elseif ($node instanceof FootnoteRef) {
$map[FootnoteRef::class][$node->getReference()->getLabel()] = true;
$map['_flat'][] = $node;
}
}
return $map;
}
}