[iaabtpbtpnn]

OCaml doesn't care about white space, and I don't think SML does either, although F# does. Maybe you are thinking of Haskell?

[nikofeyn]

i am sorry. you are right. i misremembered about sml (haven't written in it much and in a while) and incorrectly lumped in ocaml. i should have been more careful. f# was what was really on my mind.