[Haskell-cafe] Tuesday Morning Games (was: Friday Afternoon Play:) The Burrows Wheeler Transformation

[Matthias Fischmann]

On Tue, Nov 21, 2006 at 09:53:09AM +0100, Ketil Malde wrote:
> sortBy ((. tail . fst) . compare . tail . fst)

this would actually be a nice thing to have in the standard libraries:

sortOn :: (Ord b) => (a -> b) -> [a] -> [a]
sortOn f = sortBy $ (.f) . compare . f


kibitzing (:
matthias
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