You are expecting unlines to be String -> [String] but it's [String] -> String. The function you're looking for is probably Data.List.lines. The list indexing operator is !! and not !. Your function should then probably be: myManupulation cs = (lines cs) !! 3 On Sat, 2010-09-25 at 10:02 +0100, Magnus Therning wrote:
On 25/09/10 08:21, Sok H. Chang wrote:
Thank you to your answer! I indent me code as you said. I tried using Tab, using spaces… But can't work.
Is there another possibility? Thank you!
With the code looking like this:
main = do cs <- readFile "C:\\SPR.txt" putStrLn $ myManupulation cs
myManupulation cs = (unlines cs) ! 3
Then it's indented properly, but it still doesn't compile because its types don't line up properly.
/M
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