On Sat, Oct 8, 2011 at 4:28 PM, Captain Freako
<capn.freako@gmail.com> wrote:
17 newtype Filter e a = F {
18 runFilter :: EitherT e (State FilterState) a
19 } deriving (Monad, MonadState FilterState)
it compiles, but I can't figure out how I'd feed the input to the filter, in that case.
Input to Filter would be modeled with: 'a -> Filter e b'.
I would rename your 'runFilter' to 'unFilter', then define a function 'runFilter' accepting an initial FilterState.
Regards,
- db