Re: [Haskell-cafe] Use unsafePerformIO to catch Exception?

Duncan Coutts writes:

Yes, grouping is the one where I most often find the need for head or partial patterns. The function group produces a list of non-empty lists but that is not reflected in the type. On the other hand, actually reflecting it in the type would make it more awkward:

group :: Eq a => [a] -> [(a,[a])]

group :: Eq a => [a] -> [(a,Int)] ? This is often what I want anyway :-) Of course, this only works for sane Eq instances. -k -- If I haven't seen further, it is by standing in the footprints of giants