Re: [Haskell-beginners] A basic misunderstanding of how to program with IO

On 05/08/10 11:55, Ken Overton wrote:

Sorry for such a beginner-y question, but is there a way to make a function like:

interact :: String -> Resp interact txt = putStrLn txt rsp<- getLine return parseResp rsp

parseResp :: String -> Resp

Or is that simply a wrong way of programming in Haskell with IO?

I think, yes your function looks close to typical Haskell, you're just missing a "do", a pair of parentheses, and an "IO": interact :: String -> IO Resp interact txt = do putStrLn txt rsp <- getLine return (parseResp rsp) parseResp :: String -> Resp Does that make sense to you? Would you like more detailed explanation of the changes? -Isaac