On 12/19/05, Chris Kuklewicz <[EMAIL PROTECTED]> wrote: > Okay...that works. Sweet. > > gdc x = ListT $ getDirectoryContents x > > get3levels top = runListT $ do > b <- gdc top > c <- gdc $ top++('/':b) > d <- gdc $ top++('/':b)++('/':c) > return (b,c,d)
Yeah, that's awesome: just as readable as the comprehension psuedo-code if not more-so. I knew some monad wizards would step out with something nice. Thanks for spelling out what Andrew was getting at also, it would have been lost on me. I haven't yet ventured into using any monads but IO yet, maybe ListT would be a good place to start. > I feel bound to point out http://haskell.org/hawiki/ListTDoneRight which > has more to say about the details of ListT OK. Thanks to you both Chris and Andrew. Steve _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe