Re: [Haskell-cafe] minor refactoring problem

2011/11/29 Stefan Holdermans :

Martin,

...

(The trick with `flip` is tempting, but again at the cost of having to peer rather too closely at the implementation of processFile when reading the code).

That "trick" is of course completely orthogonal. One could just as well write:

 processFile :: (String -> [a]) -> (a -> (String, String)) -> Editor -> String -> IO ()  processFile f g ed path = do    s <- readFile path    ps -> mapM (makePair . g) (f s)    es -> return $ V.fromList ps    writeIORef ed es

 importFile = processFile lines (\x -> (x, ""))  loadFile   = processFile parseFile id

With the TupleSections extension, you can write (,"") Cheers, Thu