From: Danny McClanahan <dmcc2@hypnicjerk.ai>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: Augusto Stoffel <arstoffel@gmail.com>,
Helmut Eller <eller.helmut@gmail.com>,
Eli Zaretskii <eliz@gnu.org>,
Danny McClanahan <dmcc2@hypnicjerk.ai>,
pipcet@protonmail.com, emacs-devel@gnu.org, mattiase@acm.org,
acorallo@gnu.org, stefankangas@gmail.com
Subject: Re: [PATCH] add compiled regexp primitive lisp object
Date: Tue, 26 Nov 2024 18:50:36 +0000 [thread overview]
Message-ID: <231nVA_JeeFRqN-Jr2qUlIPAwaTNYT2G1qiiSY5Y4hRBFChCiK0sgenqrHcARaGyopcDt5XzTfk63BzPZAs0-8syQ-UDWVqoOz2B3mYrvuY=@hypnicjerk.ai> (raw)
In-Reply-To: <bI8s6V5mGnaISfUxrwgTc7xomnZKNE3_7NdhdFVxGZ5wqc1EBVenxQKFBSik0vDuqeMvq2LZ1cgwf0bmcp1t0K__9QIvf1MvmzD-R0w5k6c=@hypnicjerk.ai>
The talk description I submitted a bit ago can be viewed at https://emacsconf.org/2024/talks/regex/ for anyone who is interested. I am planning to be around over IRC for a good amount of the conference but especially around the talk time.
The description serves partially as a manifesto for my own purposes, and also as a self study of how Emacs allows the user to extract so much meaning out of pattern matching, as part of a general conception of Emacs as a mode of technical empowerment.
On Tuesday, November 26th, 2024 at 13:05, Danny McClanahan <dmcc2@hypnicjerk.ai> wrote:
>
>
> Thanks so much for this thorough and thoughtful response! I am compiling a 20-minute recorded talk for the upcoming EmacsConf regarding these discussions and investigations. I am also now waiting for a response from graduate school, during which I hope to then have more time to pin down several of the threads raised by this discussion.
>
> This has all been immensely helpful and I really appreciate how responsive emacs-devel has been in elaborating much of the packed-together assumptions I was making.
>
> On Tuesday, August 13th, 2024 at 21:32, Stefan Monnier monnier@iro.umontreal.ca wrote:
>
> > > Ignoring the issue that regexps may be syntax-table dependent and other
> >
> > > complications (issues which also would need to be addressed in the
> > > proposed approach), what would be the advantage of exposing compiled
> > > regexp objects versus having an infinite regexp cache?
> >
> > I can think of the following:
> >
> > - Not having to pay as much attention to the engineering of the cache
> > (it's currently small because the lookup could become costly, with
> > the current implementation).
> >
> > - We could offer to spend a fair bit more time optimizing the compiled
> > code (e.g. removing backtracking).
> >
> > But there's always the question of whether it's worth the complexity.
> > IOW, what are the concrete use cases where it makes
> > a measurable difference.
> >
> > Stefan
>
>
>
next prev parent reply other threads:[~2024-11-26 18:50 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-30 5:08 [PATCH] add compiled regexp primitive lisp object Danny McClanahan
2024-07-30 13:02 ` Philip Kaludercic
2024-07-31 22:33 ` dmcc2
2024-08-01 1:04 ` Pip Cet
2024-08-04 23:38 ` Danny McClanahan
2024-08-05 3:47 ` dmcc2
2024-08-05 4:39 ` Danny McClanahan
2024-08-05 7:15 ` Danny McClanahan
2024-08-05 17:55 ` Pip Cet
2024-08-06 15:15 ` Danny McClanahan
2024-08-06 15:57 ` Eli Zaretskii
2024-08-07 4:28 ` Danny McClanahan
2024-08-06 18:18 ` Pip Cet
2024-08-06 18:38 ` Eli Zaretskii
2024-08-07 4:23 ` Danny McClanahan
2024-08-07 12:00 ` Eli Zaretskii
2024-08-07 12:43 ` Helmut Eller
2024-08-07 13:40 ` Augusto Stoffel
2024-08-07 15:23 ` Danny McClanahan
2024-08-14 1:32 ` Stefan Monnier
2024-11-26 18:05 ` Danny McClanahan
2024-11-26 18:50 ` Danny McClanahan [this message]
2024-12-08 15:24 ` Danny McClanahan
2024-12-09 15:12 ` Stefan Monnier
2024-12-09 15:13 ` Stefan Monnier
2024-12-22 19:14 ` Ihor Radchenko
2024-12-22 19:24 ` Eli Zaretskii
2024-12-22 20:02 ` Ihor Radchenko
2024-12-22 20:20 ` Eli Zaretskii
2024-12-22 20:31 ` Ihor Radchenko
2024-08-07 15:02 ` Danny McClanahan
2024-08-07 15:23 ` Eli Zaretskii
2024-08-14 1:25 ` Stefan Monnier
2024-08-07 7:59 ` Danny McClanahan
2024-08-06 12:08 ` Eli Zaretskii
2024-08-01 8:30 ` Andrea Corallo
2024-08-01 10:06 ` Gerd Möllmann
2024-08-06 13:47 ` Danny McClanahan
2024-08-06 13:57 ` Danny McClanahan
2024-08-07 7:21 ` Andrea Corallo
2024-08-07 8:27 ` Danny McClanahan
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