From: Gary Wright <gwtmp01@...>
Date: 2007-04-03T17:24:38+09:00
Subject: Re: Last iteration condition


On Apr 3, 2007, at 3:50 AM, Brian Candler wrote:

> On Tue, Apr 03, 2007 at 03:31:09PM +0900, Gary Wright wrote:
>> Building off of Brian's suggestion in that thread, here
>> is a way to provide a 'countdown' as the end of the iteration
>> approaches.  Default is to only flag the last item but you
>> can ask for any number of items to be flagged.
>
> Interesting. Maybe it would be cleaner to return nil for all non- 
> countdown
> items, and then n-1, n-2 ... 0 as the flag (or n, n-1 ... 1). e.g.

I liked the idea of the flag being true for all but the last item.
It just makes boolean expressions nicer for that special case even
when you are counting down.