On Tue, Dec 9, 2008 at 4:58 PM, Henning Thielemann <[EMAIL PROTECTED]> wrote: > > What are the reasons, you do not like lazy IO? Yes, currently it's a hack > using unsafeInterleaveIO. But I hope someday one can hide this safely in a > nice monad. But in general I find lazy stream processing a very elegant > way of programming. Why else should we use Haskell and not, say OCaml?
The main reason I don't like lazy IO is that you need to force evaluation while the handle is open, or leave handles open. Both are non-optimal, although using Control.Parallel.Strategies makes the former at least palatable to me. Unfortunately I don't like most strict IO solutions I've seen either, although for different reasons. I do agree that lazy stream processing is very elegant. It just sometimes intersects with the real world badly (e.g. half-closed handles, handles which are still open because they were never read to EOF, etc.). At the moment I'm trying to find the ideal of good performance, stream processing, and real-world concerns removed. It seems to me that the Iteratee idea is worth exploring, as it may turn out to be fruitful. And, it just feels right. So I'm willing to spend some time on it. John _______________________________________________ haskell-art mailing list haskell-art@lurk.org http://lists.lurk.org/mailman/listinfo/haskell-art
