class Imbecile
  class Parser

    class ItemSet

      def initialize(items)
        @items = Set.new(items)
      end

      def close!
        eval_items = @items
        while eval_items.size > 0
          this_eval_items = eval_items
          eval_items = Set.new
          this_eval_items.each do |item|
            if item.next_component.is_a?(Rule)
            end
          end
          @items += eval_items
        end
      end

    end

  end
end