migrate_spip-1.0.0/src/Plugin/SpipRichText/HorizontalRules.php

<?php

declare(strict_types=1);

namespace Drupal\migrate_spip\Plugin\SpipRichText;

use Drupal\Core\StringTranslation\TranslatableMarkup;
use Drupal\migrate_spip\Attribute\SpipRichText;
use Drupal\migrate_spip\SpipRichTextBase;

/**
 * Manage SPIP horizontal rules.
 *
 * Need to be executed before EmDashes.
 */
#[SpipRichText(
  id: 'horizontal_rules',
  label: new TranslatableMarkup('Horizontal rule'),
  weight: -21,
)]
final class HorizontalRules extends SpipRichTextBase {

  /**
   * {@inheritdoc}
   */
  public function apply(string $text): string {
    return preg_replace(
      "#(^|\n)(----+|____+)#S",
      "\n\n\n<hr />\n\n\n",
      $text
    );
  }

}