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

Ozgur Akgun ozgurakgun at gmail.com
Sat May 8 12:09:53 EDT 2010


I might have misunderstood you, but what about using the existing interact
function:
http://haskell.org/ghc/docs/6.12.1/html/libraries/base-4.2.0.0/Prelude.html#v:interact

And for your interact, since it is not in the IO monad, you cannot write
such a function. [ don't tell him about the unsafePerformIO :) ]

I am sure you'll get better answers.

Best,

On 8 May 2010 16:55, Ken Overton <koverton at lab49.com> 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?
>
> Thanks (and apologies),
>
> -- kov_______________________________________________
> Beginners mailing list
> Beginners at haskell.org
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>



-- 
Ozgur Akgun
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