Ruby's Module#instance_method

------------------------------------------------- Module#instance_method
     mod.instance_method(symbol)   => unbound_method
------------------------------------------------------------------------
     Returns an +UnboundMethod+ representing the given instance method
     in _mod_.

        class Interpreter
          def do_a() print "there, "; end
          def do_d() print "Hello ";  end
          def do_e() print "!\n";     end
          def do_v() print "Dave";    end
          Dispatcher = {
           ?a => instance_method(:do_a),
           ?d => instance_method(:do_d),
           ?e => instance_method(:do_e),
           ?v => instance_method(:do_v)
          }
          def interpret(string)
            string.each_byte {|b| Dispatcher[b].bind(self).call }
          end
        end
     
        interpreter = Interpreter.new
        interpreter.interpret('dave')

     _produces:_

        Hello there, Dave!