カスタムモジュールからtokenを提供する方法（drupal8版）

/**
 * @return array
 */
function yourmodule_token_info() {
  return [
    'types' => [
      'your-token-name' => [
        'name' => t('Settings'),
        'description' => t('...'),
      ],
    ],
    'tokens' => [
      'your-token-name' => [
        'your_token_name-1' => [
          'name' => t('...'),
          'description' => t('...'),
        ],
        'your_token_name-2' => [
          'name' => t('...'),
          'description' => t('...'),
        ],
      ],
    ],
  ];
}

/**
 * @param $type
 * @param $tokens
 * @param array $data
 * @param array $options
 * @param \Drupal\Core\Render\BubbleableMetadata $bubbleable_metadat
 *
 * @return array
 */
function yourmodule_tokens($type, $tokens, array $data, array $options, BubbleableMetadata $bubbleable_metadat) {
  $replacements = [];
  $sanitize = !empty($options['sanitize']);

  switch ($type) {
    case 'your-token-name':
      $replacements['[your_token_name-1]'] = '...';
      $replacements['[your_token_name-2]'] = '...';
      break;
  }

  return $replacements;
}