Captain Freako (quoting Control.Arrow.Transformer.Automaton):
> Encapsulating an automaton by running it on a stream of inputs, obtaining a
> stream of outputs.
> Typical usage in arrow notation:
> proc p -> do
> ...
> ys <- (|runAutomaton (\x -> ...)|) xs
> Here xs refers to the input stream and x to individual elements of that
> stream. ys is bound to the output stream.
> Could someone replace the ellipses w/ an expression that would compile and
> make sense?
That ... thing isn't an expression, but rather a command, the sort of thing you
can put in the body of a proc.
This should be an example:
proc p -> do
...
ys <- (|runAutomaton (\x -> delay 0 -< x+1)|) xs
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