[Haskell-cafe] How to simplify the code of Maybe within a monad?

[Тимофеев Никита Дмитриевич]

On 17 августа 2012 11:48:54 Magicloud Magiclouds wrote:
>   But how if here maybe[ABC] are like 'IO (Maybe Int)', or foo is type
> of 'Int -> IO Int'?

Maybe you can help monad transformers and MaybeT? They help you write code 
like 'MaybeT f1 >> MaybeT f2 >> MaybeT f3 where { f1, f2, f3 :: IO (Maybe Int) 
}'.
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