Re: [Haskell-cafe] Re: nested maybes

5 Feb 2007


      Hello Martin,

Monday, February 5, 2007, 2:47:33 AM, you wrote:
...
main = do
   minput <- getInput
   case minput of
     Nothing -> printError
     Just input -> do
       mresult <- processInput input
       case mresult of
         Nothing -> printError
         Just result -> printResult result
main = do
  getInput >>= maybe printError $ \input -> do
  ...

  
-- 
Best regards,
 Bulat                            mailto:Bulat.Ziganshin@gmail.com

Re: [Haskell-cafe] Re: nested maybes

Bulat Ziganshin