case on monadic value

Question

Is there a way to perform a case on the value stored within a monad without having to bind a name to it?

i.e. instead of doing this:

c <- getChar
case         


        

Answer 1

No, not really, but you can move the case into another function and apply it to the result of a monadic action.

f x = case  x of ...

main = do
  f <$> getChar

Alternativly, the following is possible:

getChar >>= \x -> case x of ...