def load_str(str=nil,format=nil)
      str = @data if str.nil?
      format = @format if format.nil?

      @value = {}
      case format
      when List::FORMAT_BINARY, List::FORMAT_XML, List::FORMAT_PLAIN then
        prsr = @@parsers[format-1].new
        @value = prsr.load({:data => str})

      when List::FORMAT_AUTO then # what we now do is ugly, but neccessary to recognize the file format
        filetype = str[0..5]
        version = str[6..7]

        prsr = nil

        if filetype == "bplist" then
          raise CFFormatError.new("Wrong file version #{version}") unless version == "00"
          prsr = Binary.new
          @format = List::FORMAT_BINARY
        else
          if str =~ /^<(\?xml|!DOCTYPE|plist)/
            prsr = CFPropertyList.xml_parser_interface.new
            @format = List::FORMAT_XML
          else
            prsr = PlainParser.new
            @format = List::FORMAT_PLAIN
          end
        end

        @value = prsr.load({:data => str})
      end
    end
def load_str(str=nil,format=nil)
      str = @data if str.nil?
      format = @format if format.nil?

      @value = {}
      case format
      when List::FORMAT_BINARY, List::FORMAT_XML, List::FORMAT_PLAIN then
        prsr = @@parsers[format-1].new
        @value = prsr.load({:data => str})

      when List::FORMAT_AUTO then # what we now do is ugly, but neccessary to recognize the file format
        filetype = str[0..5]
        version = str[6..7]

        prsr = nil

        if filetype == "bplist" then
          raise CFFormatError.new("Wrong file version #{version}") unless version == "00"
          prsr = Binary.new
          @format = List::FORMAT_BINARY
        else
          if str =~ /^<(\?xml|!DOCTYPE|plist)/
            prsr = CFPropertyList.xml_parser_interface.new
            @format = List::FORMAT_XML
          else
            prsr = PlainParser.new
            @format = List::FORMAT_PLAIN
          end
        end

        @value = prsr.load({:data => str})
      end
    end
load a plist from a string
 str = nil:: The string containing the plist
 format = nil:: The format of the plist