Simon Marlow schrieb: > Donald Bruce Stewart wrote: > >> Hacking up your own custom split (or a tokens/splitOnGlue) must be one >> of the most common questions from beginners on the irc channel. >> >> Anyone rememeber what the result of the "let's get split into the base >> library" movement's work was? > > ISTR there wasn't a concensus, so nothing happened. Which is silly, > really - I agree we should definitely have a Data.List.split. >
Maybe someone can extract a result from the old discussion about "Prelude function suggestions" http://thread.gmane.org/gmane.comp.lang.haskell.libraries/1684/focus=1684 Cheers Christian Our current (special) version is: {- | A function inspired by the perl function split. A list is splitted on a seperator element in smaller non-empty lists. The seperator element is dropped from the resulting list. -} splitOn :: Eq a => a -- ^ seperator -> [a] -- ^ list to split -> [[a]] splitOn x xs = let (l, r) = break (==x) xs in (if null l then [] else [l]) ++ (if null r then [] else splitOn x $ tail r) _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe