How can I get unicode output in Haskell

Question

I have a main function that outputs unicode which looks like this:

main = do hSetEncoding stdout utf8 input <- getContents mapM_ putStr $ myfunc input

How can I write this function without do notation?

I get <stdout>: commitBuffer: invalid argument (invalid character) when I try to compile this main function:

main = getContents >>= mapM_ putStr . myfunc

Thomas M. DuBuisson · Accepted Answer · 2014-01-21 02:18:17Z

Just use sequence (>>):

main = do hSetEncoding stdout utf8 input <- getContents mapM_ putStr $ myfunc input ~~> main = hSetEncoding stdout utf8 >> getContents >>= \input -> mapM_ putStr $ lines input ~~> main = hSetEncoding stdout utf8 >> getContents >>= mapM_ putStr . lines

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