From: Matt Maycock <ummaycoc@...>
Date: 2004-08-12T06:00:59+09:00
Subject: Re: FirstEachLast, an extension to the Enumerable module.

I also *just* decided this would be a good addition to
Enumerable#PositionVariable from my previous msg...

      def method_missing(sym, *args, &block)
        if sym.to_s =~ /\?$/ then
          meth = "index_#{sym}".intern
          @enum.send(meth, @index)
        else
          super(sym, *args, &block)
        end
      end

now you can do
  enum.each_with_pos {|e, pos|
    if pos.first? then
       ....
    end
  }

still just need the enums to have the right index_??? functions...

-Matt

-- 
There's no word in the English language for what you do to a dead
thing to make it stop chasing you.