    # File lib/rmail/address.rb, line 52
        def initialize(string = nil)

          @local = @domain = @comments = @display_name = nil

          if string.kind_of?(String)
            addrs = Address.parse(string)
            if addrs.length > 0
              @local = addrs[0].local
              @domain = addrs[0].domain
              @comments = addrs[0].comments
              @display_name = addrs[0].display_name
            end
          else
            raise ArgumentError unless string.nil?
          end
        end