使drupal在theme里也可以使用t()来翻译

原帖地址http://drupal.org/node/155275
经本人修改，测试ok

/*
 * Function to translate strings in theme files
 */

function tr($string, $args = 0, $return = FALSE) {
  $locale = language_default();
  if (function_exists('locale') && $locale->language != 'en') {
    $string = locale($string, $locale->language);
  }
  if (!$args) {
    return $string;
  } else {
    // Transform arguments before inserting them
    foreach ($args as $key => $value) {
      switch ($key[0]) {
        // Escaped only
        case '@':
          $args[$key] = check_plain($value);
          break;
        // Escaped and placeholder
        case '%':
        default:
          $args[$key] = theme('placeholder', $value);
          break;
        // Pass-through
        case '!':
      }
    }
    $string = strtr($string, $args);
    return $string;
  }
}