[Haskell-cafe] How to split this string.

[max]

В Mon, 02 Jan 2012 11:12:49 +0000
Jon Fairbairn <jon.fairbairn at cl.cam.ac.uk> пишет:

> max <mk at mtw.ru> writes:
> 
> > I want to write a function whose behavior is as follows:
> >
> > foo "string1\nstring2\r\nstring3\nstring4" = ["string1",
> > "string2\r\nstring3", "string4"]
> >
> > Note the sequence "\r\n", which is ignored. How can I do this?
> 
> cabal install split
> 
> then do something like
> 
>    import Data.List (groupBy)
>    import Data.List.Split (splitOn)
> 
>    rn '\r' '\n' = True
>    rn _ _ = False
> 
>    required_function = fmap concat . splitOn ["\n"] . groupBy rn
> 
> (though that might be an abuse of groupBy)
> 

This is the simplest solution of the proposed, in my opinion. Thank you
very much.