# File lib/vpim/agent/calendars.rb, line 37
      def initialize(uri, base = "")
        @uri  = URI.parse(uri.to_s)
        #pp [uri, base, @uri]
       if @uri.path.size == 0
         @uri.path = "/"
       end
        @path = Path.split_path(@uri.path)
        @base = base.to_str
        @mark = 0

        @base.split.size.times{ shift }
      end