migrate_spip-1.0.0/src/Plugin/SpipRichText/Italics.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 italics.
 *
 * Need to be executed after subheadings, bolds and links.
 */
#[SpipRichText(
  id: 'italics',
  label: new TranslatableMarkup('Italics'),
  weight: -18,
)]
final class Italics extends SpipRichTextBase {

  /**
   * {@inheritdoc}
   */
  public function apply(string $text): string {
    return str_replace(
      [
        // Empty italic.
        '{}',
        '{',
        '}',
      ],
      [
        '',
        '<em>',
        '</em>',
      ],
      $text
    );
  }

}