From: "Jan E." <lists@...>
Date: 2012-04-14T09:03:10+09:00
Subject: Re: unable to do "down" range?

Apart from the problems Bartosz mentioned, I still don't see the 
advantage of "down ranges" over using iterators or enumerators. I mean, 
isn't that exactly what iterators/enumerators are for? You can use them 
to count up, count down, count with a different step length etc.

Sure, they are a bit cumbersome, because they don't have their own 
literal. But instead of overloading the Range class more and more, I'd 
rather introduce a new class for tuples/sequences together with new 
literals:

up_seq = <1, ..., 10>
down_seq = <10, ..., 1>
step_seq = <2, 4, ..., 10>

(Much like Haskell's list notation)

Maybe we'll even have list comprehensions one day. :-|

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