From: Robert Klemme <shortcutter@...>
Date: 2008-11-04T05:18:54+09:00
Subject: Re: Clean way of pausing a loop?

On 03.11.2008 21:07, Kyle Schmitt wrote:
> Hum.  Well those all work, but aren't those basically similar to what
> I'm already doing?

They at least do not do the counting manually.  That's probably more 
efficient also since counting is done in C code.

Btw, there is one more option: use each_slice. :-)

> I was hoping to somehow have a handler that would inject the logic
> into an existing loop.

I believe we have seen such a solution in this thread already.  Here's 
another one

class EI
   include Enumerable

   def initialize(enum, steps, &inter)
     @enum = enum
     @steps = steps
     @inter = inter
   end

   def each
     @enum.each_with_index do |e,i|
       inter.call if i % steps == 0 && i != 0
       yield e
     end
     self
   end
end

Kind regards

	robert