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Re: `max-specpdl-size' and `max-lisp-eval-depth'
From: |
tomas |
Subject: |
Re: `max-specpdl-size' and `max-lisp-eval-depth' |
Date: |
Tue, 28 Sep 2021 16:19:22 +0200 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Tue, Sep 28, 2021 at 04:08:24PM +0200, Emanuel Berg via Users list for the
GNU Emacs text editor wrote:
> tomas wrote:
>
> >> IIRC from Automata Theory there was this thing called a PDA
> >> or "pushdown automaton", maybe that was a stack as well?
> >
> > That was a stack. A PDA automaton is a finite automaton
> > enhanced by a stack, so it can grok nested structures.
>
> OK!
>
> But actually the way you put it it's infinite :)
Finite automata are only in part finite (the set of states is
finite, not necessarily the input/output).
The addition of a stack is, of course, yet another infinite
accessory (if the stack were finite, you could simulate it
by adding -- possibly lots and lots, but still finitely many
states).
Strange stuff all over :)
Cheers
- t
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- Re: `max-specpdl-size' and `max-lisp-eval-depth', (continued)
- Re: `max-specpdl-size' and `max-lisp-eval-depth', Hongyi Zhao, 2021/09/26
- Re: `max-specpdl-size' and `max-lisp-eval-depth', Emanuel Berg, 2021/09/26
- Re: `max-specpdl-size' and `max-lisp-eval-depth', Eli Zaretskii, 2021/09/26
- Re: `max-specpdl-size' and `max-lisp-eval-depth', Hongyi Zhao, 2021/09/26
- Re: `max-specpdl-size' and `max-lisp-eval-depth', Stephen Berman, 2021/09/28
- Re: `max-specpdl-size' and `max-lisp-eval-depth', Hongyi Zhao, 2021/09/28
- Re: `max-specpdl-size' and `max-lisp-eval-depth', Emanuel Berg, 2021/09/28
- Re: `max-specpdl-size' and `max-lisp-eval-depth', Emanuel Berg, 2021/09/28
- Re: `max-specpdl-size' and `max-lisp-eval-depth', tomas, 2021/09/28
- Re: `max-specpdl-size' and `max-lisp-eval-depth', Emanuel Berg, 2021/09/28
- Re: `max-specpdl-size' and `max-lisp-eval-depth',
tomas <=
- Re: `max-specpdl-size' and `max-lisp-eval-depth', Lars Ingebrigtsen, 2021/09/28
- Re: `max-specpdl-size' and `max-lisp-eval-depth', Stephen Berman, 2021/09/28
- Re: `max-specpdl-size' and `max-lisp-eval-depth', Lars Ingebrigtsen, 2021/09/29
RE: [External] : `max-specpdl-size' and `max-lisp-eval-depth', Drew Adams, 2021/09/25