On Fri, Dec 12, 2008 at 5:00 AM, Steven Taylor <[email protected]> wrote:
> is it true that J finite state machine have only one row of look-back?

Do you mean the ;: dyad?

I am not completely sure what you mean by "look back" because all I can
find on the subject are papers that require me to pay money to read them,
and I am not inclined to do so.

As near as I can tell, "look-back" in the context of state machines, has
to do with restructuring the state machine so that you can take advantage
of parallel hardware.

J currently uses only one CPU, so if my understanding of look-back was
correct, it seems to me that the concept is irrelevant to J's implementation.

If your question was algorithmic in nature, can you pose a representative
problem?

Thanks,

-- 
Raul
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