Re: A tortoise-rambling email

[email protected] (Greg Allen)
Newsgroups perl.golf
Message-ID <[email protected]>
--- Amir Karger <[email protected]> wrote:
> I had the "inside
> out" algorithm for about five minutes before I decided
> it wasn't helping much. In retrospect, it turns out
> that for that solution you need to carefully mark when
> you've already RPN'd a region. 

As I was saying in my last email you don't *have* to mark RPN'ed regions when
doing a bottom-up parse/replace - I didn't, but my regexp was a bit long. The
marking helps for the sake of golfing (and efficiency) - it's more concise (and
quicker!).

To tediously refine the algorithm classfication further then, we could have,
"bottom-up (marked)" and "bottom-up (unmarked)". Presumably the "marking" is
what makes it a "transducer"?

cheers,
Greg


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