class Mail::ContentTransferEncodingElement

def encoding
  @encoding
end

def initialize( string )
  parser = Mail::ContentTransferEncodingParser.new
  if tree = parser.parse(string.downcase)
    @encoding = tree.encoding.text_value
  else
    raise Mail::Field::ParseError, "ContentTransferEncodingElement can not parse |#{string}|\nReason was: #{parser.failure_reason}\n"
  end
end