[Haskell-cafe] runInteractiveCommand

Dave Feustel dfeustel at mindspring.com
Mon Apr 9 08:57:00 EDT 2007

I tried the code below with both ghc 6.2.2 and hugs march 2005.
ghc: "The last statement in a 'do' construct must be an expression"
Hugs ERROR "interactive.hs" - Can't find imported module "System.Process"

>import System.IO
>import System.Process
>eval :: String -> IO String
>eval s = do (_,hOutput,_,hProcess) <- runInteractiveCommand s
>           sOutput <- hGetContents hOutput
>           waitForProcess hProcess
>           return sOutput

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