On 07/03/07, Nicolas Frisby
1) Emacs does the counting for me 2) parens don't surprise me if I happen to use rank-2 types.
i was bit enough times when learning why $ and runST don't like each other that I've grown averse of $. I also like thinking of building a composite function instead of sequencing applications--this has helped me see patterns in other places like writing monad transformer instances and other stuff, so maybe it's a good thing.
I don't use rank-2 types that often and when I do I'm aware of the restriction on ($) and similar hofs. I tend to use ($) only when the right-hand side gets very messy; a multiple-line do or similar. For example: blah = fromMaybe $ do x <- blah1 y <- blah2 guard (x == f y) g x The closing parenthesis would make things a little messy, so ($) is nice. -- -David House, dmhouse@gmail.com