original_string: protected function _getInfoString(&$flags)
      {
          // accessing keys is easier, faster and it removes duplicated flags
          $wanted_flags = array_flip($flags);
          if (isset($wanted_flags[Zend_Mail_Storage::FLAG_RECENT])) {
              /**
               * @see Zend_Mail_Storage_Exception
               */
              // require_once 'Zend/Mail/Storage/Exception.php';
              throw new Zend_Mail_Storage_Exception('recent flag may not be set');
          }
  
          $info = ':2,';
          $flags = array();
          foreach (Zend_Mail_Storage_Maildir::$_knownFlags as $char => $flag) {
              if (!isset($wanted_flags[$flag])) {
                  continue;
              }
              $info .= $char;
              $flags[$char] = $flag;
              unset($wanted_flags[$flag]);
          }
  
          if (!empty($wanted_flags)) {
              $wanted_flags = implode(', ', array_keys($wanted_flags));
              /**
               * @see Zend_Mail_Storage_Exception
               */
              // require_once 'Zend/Mail/Storage/Exception.php';
              throw new Zend_Mail_Storage_Exception('unknown flag(s): ' . $wanted_flags);
          }
  
          return $info;
      }
code: protected function _getInfoString(&$flags)
      {
          // accessing keys is easier, faster and it removes duplicated flags
          $wanted_flags = array_flip($flags);
          if (isset($wanted_flags[Zend_Mail_Storage::FLAG_RECENT])) {
              /**
               * @see Zend_Mail_Storage_Exception
               */
              // require_once 'Zend/Mail/Storage/Exception.php';
              throw new Zend_Mail_Storage_Exception('recent flag may not be set');
          }
  
          $info = ':2,';
          $flags = array();
          foreach (Zend_Mail_Storage_Maildir::$_knownFlags as $char => $flag) {
              if (!isset($wanted_flags[$flag])) {
                  continue;
              }
              $info .= $char;
              $flags[$char] = $flag;
              unset($wanted_flags[$flag]);
          }
  
          if (!empty($wanted_flags)) {
              $wanted_flags = implode(', ', array_keys($wanted_flags));
              /**
               * @see Zend_Mail_Storage_Exception
               */
              // require_once 'Zend/Mail/Storage/Exception.php';
              throw new Zend_Mail_Storage_Exception('unknown flag(s): ' . $wanted_flags);
          }
  
          return $info;
      }
code_tokens: protected function _getInfoString ( & $ flags ) { // accessing keys is easier, faster and it removes duplicated flags $ wanted_flags = array_flip ( $ flags ) ; if ( isset ( $ wanted_flags [ Zend_Mail_Storage :: FLAG_RECENT ] ) ) { /**
               * @see Zend_Mail_Storage_Exception
               */ // require_once 'Zend/Mail/Storage/Exception.php'; throw new Zend_Mail_Storage_Exception ( 'recent flag may not be set' ) ; } $ info = ':2,' ; $ flags = array ( ) ; foreach ( Zend_Mail_Storage_Maildir :: $ _knownFlags as $ char => $ flag ) { if ( ! isset ( $ wanted_flags [ $ flag ] ) ) { continue ; } $ info .= $ char ; $ flags [ $ char ] = $ flag ; unset ( $ wanted_flags [ $ flag ] ) ; } if ( ! empty ( $ wanted_flags ) ) { $ wanted_flags = implode ( ', ' , array_keys ( $ wanted_flags ) ) ; /**
               * @see Zend_Mail_Storage_Exception
               */ // require_once 'Zend/Mail/Storage/Exception.php'; throw new Zend_Mail_Storage_Exception ( 'unknown flag(s): ' . $ wanted_flags ) ; } return $ info ; }
docstring: create an info string for filenames with given flags
  
  @param   array $flags wanted flags, with the reference you'll get the set flags with correct key (= char for flag)
  @return  string info string for version 2 filenames including the leading colon
  @throws  Zend_Mail_Storage_Exception
docstring_tokens: create an info string for filenames with given flags