Hello, I'm looking for a good example of function composition. It's very impressive, how concise you can extract information out of a file in Haskell. So I write a short programm, which gets all title words out of a given file sorted by their length. How could the following programm be improved? import Data.Char (isUpper,isLower) import Data.List (sortBy) import Data.Ord (comparing) isTitle word= isFirstUpperCase ( word) && isTailLowerCase ( word ) where isFirstUpperCase= isUpper . head isTailLowerCase= all isLower . tail main = do putStrLn "The name of the input file:" file <- getLine inputString <- readFile file let allTitles= reverse . sortBy (comparing length ) . filter isTitle $ words inputString putStrLn $ show $ take 15 allTitles putStrLn $ show (length allTitles) ++ " titles in " ++ file Thanks in advance, Rainer -- Rainer Grimm rainer@grimm-jaud.de http://www.grimm-jaud.de javascript:void(0);