Prelude function suggestions

[Tomasz Zielonka]

On Thu, Jul 29, 2004 at 12:40:08PM +0200, Martin Sjögren wrote:
> 
> I often use an even more generic function:
> 
> splitter :: ([a] -> (b,[a])) -> [a] -> [b]
> splitter _ [] = []
> splitter f xs = b : splitter f rest
>   where (b,rest) = f xs
> 
> The name might not be ideal, but the general mechanics of it is pretty nice.

Have you looked at List.unfoldr? It's even more general.

    unfoldr :: (b -> Maybe (a, b)) -> b -> [a]

Best regards,
Tom

-- 
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