From: Alan Mackenzie <acm@muc.de>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: 43558@debbugs.gnu.org, "Mattias Engdegård" <mattiase@acm.org>
Subject: bug#43558: [PATCH]: Fix (forward-comment 1) when end delimiter is escaped.
Date: Sun, 22 Nov 2020 17:08:30 +0000 [thread overview]
Message-ID: <20201122170830.GD5912@ACM> (raw)
In-Reply-To: <jwv8sats9mc.fsf-monnier+emacs@gnu.org>
Hello, Stefan.
On Sun, Nov 22, 2020 at 10:20:32 -0500, Stefan Monnier wrote:
> > Because syntax-table text properties are already used for so many
> > different things in CC Mode (I think the count is five in C++ Mode).
> > Adding another one would mean having to scan for this rare construct at
> > every buffer change, and this would slow things down, possibly a lot.
> The fact that you already have 5 other such uses implies that the slow
> down from this one cannot possibly be larger than 20% (since the scan
> for it is very simple, I doubt any of the other 5 is simpler).
The fact remains that an implementation at the C level is objectively
better than one at the Lisp level.
> Most major modes have such things and we live just fine with them.
> This is a non-issue.
Really? Are there any other programming language modes whose comments
syntax.c cannot handle without syntax-table text properties?
> Stefan
--
Alan Mackenzie (Nuremberg, Germany).
next prev parent reply other threads:[~2020-11-22 17:08 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-22 9:35 bug#43558: [PATCH]: Fix (forward-comment 1) when end delimiter is escaped Alan Mackenzie
2020-09-22 14:09 ` Stefan Monnier
2020-09-22 19:41 ` Alan Mackenzie
[not found] ` <handler.43558.B.160076736116422.ack@debbugs.gnu.org>
2020-09-23 8:57 ` Alan Mackenzie
2020-09-23 9:01 ` Mattias Engdegård
2020-09-23 14:48 ` Alan Mackenzie
2020-09-23 18:44 ` Stefan Monnier
2020-09-23 19:44 ` Alan Mackenzie
2020-09-23 20:02 ` Stefan Monnier
2020-09-24 10:20 ` Alan Mackenzie
2020-09-24 16:56 ` Stefan Monnier
2020-09-24 18:50 ` Alan Mackenzie
2020-09-24 22:43 ` Stefan Monnier
2020-11-19 21:18 ` Alan Mackenzie
2020-11-19 22:47 ` Stefan Monnier
2020-11-22 13:12 ` Alan Mackenzie
2020-11-22 15:20 ` Stefan Monnier
2020-11-22 17:08 ` Alan Mackenzie [this message]
2020-11-22 17:46 ` Dmitry Gutov
2020-11-22 18:19 ` Alan Mackenzie
2020-11-22 20:39 ` Dmitry Gutov
2020-11-22 21:13 ` Alan Mackenzie
2020-11-22 21:34 ` Dmitry Gutov
2020-11-22 22:01 ` Alan Mackenzie
2020-11-22 23:00 ` Stefan Monnier
2021-05-13 10:38 ` Lars Ingebrigtsen
2021-05-13 14:51 ` Alan Mackenzie
2021-05-16 13:53 ` Lars Ingebrigtsen
2022-04-28 11:17 ` Lars Ingebrigtsen
2022-04-28 18:52 ` Alan Mackenzie
2020-11-22 23:10 ` Stefan Monnier
2020-11-22 15:35 ` Eli Zaretskii
2020-11-22 17:03 ` Alan Mackenzie
2020-09-24 18:52 ` Michael Welsh Duggan
2020-09-24 19:57 ` Alan Mackenzie
2020-09-24 20:27 ` Michael Welsh Duggan
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