gistfile1.rb

  class Table
    def initialize(selector, document)
      @table = document.search(selector).search("tr").map do |tr|
        tr.search("th, td").map do |td|
          td.inner_text.strip.gsub(/$/, '$')
        end.first
      end
      # confirms it's a table
      unless @table.is_a?(Array) && @table.first.is_a?(Array)
        raise UnAdaptedError.new("table parsing failed")
      end

      [@table, @table.first].each do |instance|
        table.metaclass.send(:define_method, :[]) do |index|
          unless table[index]
            raise UnAdaptedError.new("selector expectations not met")
          else
            super
          end
        end
      end
    end

    def method_missing(msg, *args, &block)
      if @table.responds_to?(msg)
        @table.send(msg, args, &block)
      else
        super
      end
    end
  end # Table