From: Stefan Kangas <stefan@marxist.se>
To: "Mattias Engdegård" <mattiase@acm.org>
Cc: Emacs developers <emacs-devel@gnu.org>,
Anna Glasgall <anna@crossproduct.net>,
Stefan Monnier <monnier@iro.umontreal.ca>
Subject: Re: "Raw" string literals for elisp
Date: Wed, 8 Sep 2021 17:41:47 +0200 [thread overview]
Message-ID: <CADwFkm=3tJfPfvM+cm0110ouZKCEZ+hAHOLeYWr--7bmKBDJTQ@mail.gmail.com> (raw)
In-Reply-To: <A8CD44B3-79C1-400C-B53E-32BE9436C027@acm.org>
Mattias Engdegård <mattiase@acm.org> writes:
> Elisp actually has a much better regexp syntax than most other languages:
>
> > "\\(\\\\\\\\\\)\\(?:\\(\\\\\\\\\\)\\|\\((\\(?:\\?[0-9]*:\\)?\\|[|)]\\)\\)"
>
> Today that would be written
>
> (rx (group "\\\\")
> (or (group "\\\\")
> (group
> (or (seq "("
> (? "?" (* digit) ":"))
> (in ")|")))))
>
> which is much more readable and maintainable and less error-prone than what you would get with a new string syntax.
That's true. I hope that we can preload rx and use it more.
But ELisp is also intended for end-users that want to hack together
some quick command. They may be completely uninterested in spending
even a minimum of time to learn rx, and prefer instead to use the more
standard form they already know so they can just get their job done.
I'm not even sure that rx is the unequivocal first choice among
hardcore ELisp programmers.
next prev parent reply other threads:[~2021-09-08 15:41 UTC|newest]
Thread overview: 120+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-08 1:49 "Raw" string literals for elisp Anna Glasgall
2021-09-08 7:10 ` Po Lu
2021-09-08 14:19 ` Anna Glasgall
2021-09-08 7:12 ` Lars Ingebrigtsen
2021-09-08 14:20 ` Anna Glasgall
2021-09-08 11:30 ` Alan Mackenzie
2021-09-08 14:27 ` Anna Glasgall
2021-09-08 11:34 ` Adam Porter
2021-09-08 13:59 ` Clément Pit-Claudel
2021-09-08 14:12 ` Adam Porter
2021-09-09 3:09 ` Richard Stallman
2021-09-08 13:10 ` Stefan Monnier
2021-09-08 14:31 ` Anna Glasgall
2021-09-08 15:27 ` Mattias Engdegård
2021-09-08 15:41 ` Stefan Kangas [this message]
2021-09-08 16:45 ` Mattias Engdegård
2021-09-08 16:01 ` Alan Mackenzie
2021-09-08 18:24 ` Mattias Engdegård
2021-09-08 19:00 ` Alan Mackenzie
2021-09-08 19:22 ` Philip Kaludercic
2021-09-08 19:36 ` Alan Mackenzie
2021-09-08 21:11 ` Stefan Kangas
2021-09-08 21:24 ` Philip Kaludercic
2021-09-09 6:52 ` tomas
2021-09-08 15:54 ` Stefan Kangas
2021-09-08 16:05 ` tomas
2021-09-08 16:42 ` Lars Ingebrigtsen
2021-09-08 20:08 ` Stefan Monnier
2021-09-08 20:18 ` Stefan Monnier
2021-09-09 7:04 ` tomas
2021-09-09 10:30 ` Mattias Engdegård
2021-09-09 11:36 ` Stefan Kangas
2021-09-09 13:33 ` Mattias Engdegård
2021-09-09 14:32 ` tomas
2021-09-14 10:43 ` Augusto Stoffel
2021-09-14 11:42 ` Ihor Radchenko
2021-09-14 13:18 ` Stefan Monnier
2021-09-14 13:22 ` Stefan Kangas
2021-09-14 14:01 ` Ihor Radchenko
2021-09-14 14:39 ` Clément Pit-Claudel
2021-09-14 15:33 ` Amin Bandali
2021-09-14 16:05 ` Eli Zaretskii
2021-09-14 17:49 ` Jose E. Marchesi
2021-09-08 20:40 ` Anna Glasgall
2021-09-08 21:28 ` Alan Mackenzie
2021-10-02 21:03 ` Daniel Brooks
2021-10-04 0:13 ` Richard Stallman
2021-10-04 0:36 ` Daniel Brooks
2021-10-04 12:00 ` Eli Zaretskii
2021-10-04 15:36 ` character sets as they relate to “Raw” " Daniel Brooks
2021-10-04 16:34 ` Stefan Monnier
2021-10-04 20:49 ` Daniel Brooks
2021-10-04 21:19 ` Alan Mackenzie
2021-10-04 22:19 ` Daniel Brooks
2021-10-05 11:20 ` Alan Mackenzie
2021-10-05 17:08 ` Daniel Brooks
2021-10-06 20:54 ` Richard Stallman
2021-10-07 7:01 ` Eli Zaretskii
2021-10-05 8:55 ` Yuri Khan
2021-10-05 16:25 ` Juri Linkov
2021-10-05 17:15 ` Eli Zaretskii
2021-10-05 18:40 ` [External] : " Drew Adams
2021-10-06 20:54 ` Richard Stallman
2021-10-07 6:54 ` Eli Zaretskii
2021-10-07 13:14 ` Stefan Kangas
2021-10-07 13:34 ` Eli Zaretskii
2021-10-07 14:48 ` Stefan Kangas
2021-10-07 16:00 ` Eli Zaretskii
2021-10-08 0:37 ` Stefan Kangas
2021-10-08 6:53 ` Eli Zaretskii
2021-10-08 15:09 ` Display of em dashes in our documentation Stefan Kangas
2021-10-08 16:12 ` Eli Zaretskii
2021-10-08 17:17 ` Stefan Kangas
2021-10-10 8:00 ` Juri Linkov
2021-10-08 17:27 ` Daniel Brooks
2021-10-08 18:26 ` [External] : " Drew Adams
2021-10-08 17:17 ` character sets as they relate to “Raw” string literals for elisp Alan Mackenzie
2021-10-08 17:42 ` Eli Zaretskii
2021-10-08 18:47 ` Eli Zaretskii
2021-10-08 20:01 ` Alan Mackenzie
2021-10-09 6:18 ` Eli Zaretskii
2021-10-09 10:57 ` Alan Mackenzie
2021-10-09 11:49 ` Eli Zaretskii
2021-10-09 13:08 ` Alan Mackenzie
2021-10-09 13:15 ` Eli Zaretskii
2021-10-09 15:07 ` Alan Mackenzie
2021-10-11 0:45 ` linux console limitations Daniel Brooks
2021-10-12 10:18 ` Alan Mackenzie
2021-10-14 4:05 ` Daniel Brooks
2021-10-10 8:03 ` character sets as they relate to “Raw” string literals for elisp Juri Linkov
2021-10-05 18:23 ` [External] : " Drew Adams
2021-10-05 19:13 ` Stefan Kangas
2021-10-05 19:20 ` Drew Adams
2021-10-05 17:13 ` Daniel Brooks
2021-10-05 12:04 ` Eli Zaretskii
2021-10-05 21:20 ` Richard Stallman
2021-10-05 22:13 ` Daniel Brooks
2021-10-06 12:13 ` Eli Zaretskii
2021-10-06 18:57 ` Daniel Brooks
2021-10-07 4:23 ` Eli Zaretskii
2021-10-07 22:27 ` Richard Stallman
2021-10-08 10:37 ` Po Lu
2021-10-08 10:53 ` Basil L. Contovounesios
2021-10-08 11:27 ` tomas
2021-10-05 22:25 ` character sets as they relate to “Raw†" Stefan Kangas
2021-10-06 6:21 ` Daniel Brooks
2021-10-07 22:20 ` Richard Stallman
2021-10-06 12:29 ` Eli Zaretskii
2021-10-06 12:52 ` Stefan Kangas
2021-10-06 13:10 ` Jean-Christophe Helary
2021-10-06 11:53 ` character sets as they relate to “Raw” " Eli Zaretskii
2021-10-04 18:57 ` Eli Zaretskii
2021-10-04 19:14 ` Yuri Khan
2021-10-05 21:20 ` Richard Stallman
2021-10-06 3:48 ` character sets as they relate to “Raw†" Matthew Carter
2021-10-04 22:29 ` "Raw" " Richard Stallman
2021-10-05 5:39 ` Daniel Brooks
2021-10-05 5:43 ` Jean-Christophe Helary
2021-10-05 8:24 ` Richard Stallman
2021-10-05 12:23 ` Eli Zaretskii
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