Monad Maybe?

Hal Daume III hdaume@ISI.EDU
Sat, 21 Sep 2002 16:54:22 -0700 (PDT)


> show g | Just n = number g   = Just (show n)
>        | Just n = fraction g = Just (show n)
>        | Just n = nimber g   = Just ("*"++show n)
>        | Nothing             = Nothing

These should be "Just n <- number g", not "="

 - Hal