[Haskell-beginners] Built-in/more elegant version of this function?

[Daniel Fischer]

Am Montag 26 Oktober 2009 18:49:51 schrieb Jordan Cooper:
> I was wondering if there is a built-in way to do what this function I
> wrote does (or at least a more elegant way, preferably without
> explicit recursion).
>
> f xss = map safeHead xss : f (map safeTail xss)
>
> (where safeHead/Tail are versions of head/tail that don't crash on []
> input) 

Not quite the same, but

Prelude> :m +Data.List
Prelude Data.List> transpose [[1,2],[],[3,4,5]]
[[1,3],[2,4],[5]]

could be more or less what you want.