From: Logan Capaldo <logancapaldo@...>
Date: 2006-05-09T03:58:17+09:00
Subject: Re: How can I write the awesome kind of code?


On May 8, 2006, at 2:38 PM, Pat Maddox wrote:

> I'm writing a small app to do poker simulations.  I read a lot of
> blogs in which the author shows off his cool DSL.  I decided I want to
> be able to specify a poker hand in my app like
>
> hand "my_hand" do
>  players 10
>  chips     1000
> end
>
> my_hand.foo
>
> How can I do something like that?
>
> Pat
>

class Hand
   def initialize(name, &block)
       @name = name
       if block
          instance_eval(&block)
       end
       self
   end
   def players(i)
       @players = i
   end

   def chips(i)
       @chips = i
   end

   def foo
     puts self.inspect
   end
end

def hand(name, &block)
     Hand.new(name, &block)
end


my_hand = hand "my_hand" do
             players 10
             chips 1000
           end

my_hand.foo

#<Hand:0x363450 @name="my_hand", @chips=1000, @players=10>

If you want to automatically set 'my_hand' you can put it inside an  
enclosing object and dynamically define the my_hand method