MaybeT to transformers

[Brent Yorgey]

On Tue, Feb 03, 2009 at 02:10:14PM +0100, Henning Thielemann wrote:
>
> What about adding the Maybe monad transformer as provided in MaybeT package 
> to the transformers package?
>
> The module name could be
>   Control.Monad.Trans.Maybe
>  which would also avoid conflicts with the MaybeT package.

+1

I have been surprised on several occasions that MaybeT is not in the mtl.

-Brent