infixr (RParsec::Parser)

    # File rparsec/parser.rb, line 394
      def infixr(op)
        Parsers.sequence(self, _infix_rest(op, self).many) do |v, rests|
          if rests.empty?
            v
          else
            f, seed = *rests.last
            for i in (0...rests.length-1)
              cur = rests.length-2-i
              f1, v1 = *rests[cur]
              seed = f.call(v1, seed)
              f = f1
            end
            f.call(v, seed)
          end
        end
      end