ChrisK writes:
> I was thinking to myself:
> What in Haskell would give me a "yield" command like a Python
> generator?
>
> And the answer was "tell" in Control.Monad.Writer -- and I wrote some
> simple examples (see below).
Another possibility would be a continuation monad.
import Control.Monad.Cont
yield :: a -> Cont [a] ()
yield x = Cont (\c -> x : c ())
asGenerator :: Cont [a] v -> [a]
asGenerator (Cont f) = f (const [])
--
David Menendez <[EMAIL PROTECTED]> | "In this house, we obey the laws
<http://www.eyrie.org/~zednenem> | of thermodynamics!"
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