code: def pivot_each_column(values=[])
        pivot.each do |column, parameters|
          value = values[parameters[:col].to_i]
          value = value.strip.gsub(/^"|"$/, "") unless value.nil?
          match = false
          begin
            match = eval(parameters[:operation].gsub('[value]', value))
          rescue Exception => e
  
          end
          yield column, match
        end
      end
docs: Yields the column value and whether the filter matches the column