all messages for Emacs-related lists mirrored at yhetil.org
 help / color / mirror / code / Atom feed
From: Alan Mackenzie <acm@muc.de>
To: Stefan Kangas <stefan@marxist.se>
Cc: 18134@debbugs.gnu.org, Sam Varshavchik <sam.varshavchik@gmail.com>
Subject: bug#18134: 24.3; Doxygen comments trigger anomalous C++ major mode behavior
Date: Mon, 7 Oct 2019 18:51:35 +0000	[thread overview]
Message-ID: <20191007185135.GA5606@ACM> (raw)
In-Reply-To: <CADwFkm=6UZKRZ3zaDqiTPD0S52XGvGTrPowugw-3HruLNbti_A@mail.gmail.com>

Hello, Stefan.

On Mon, Oct 07, 2019 at 00:42:46 +0200, Stefan Kangas wrote:
> found 27.0.50
> thanks

> Sam Varshavchik <sam.varshavchik@gmail.com> writes:

> > I am seeing anomalous behavior in C++ major mode that's triggered by
> > long, but not excessively long -- only a few hundred lines -- Doxygen-style
> > comments.

> > Cursor navigation at the end of the Doxygen comment block in the
> > following file (just before the first typedef), and trying to add some
> > additional text there, results in 3-5 seconds' worth of delays for
> > nearly typed character.

> > Highlighting the entire Doxygen comment block: M-x indent-region takes
> > several minutes (!) with emacs consuming 100% CPU.
> [Snipped a long C++ example file here.]

> I can reproduce both issues on current master using the provided example
> file.

> 1. Editing is very slow after the Doxygen comment block.

> 2. Opening the example file under "emacs -Q", pressing C-x h TAB takes
>    several minutes and sees the emacs process consume 100 % CPU (on one
>    core at least).

I will be looking at this in the coming days.  It is likely to take
several (or even many) days to resolve, not hours.

[ .... ]

> Best regards,
> Stefan Kangas

-- 
Alan Mackenzie (Nuremberg, Germany).





  reply	other threads:[~2019-10-07 18:51 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-07-28 12:47 bug#18134: 24.3; Doxygen comments trigger anomalous C++ major mode behavior Sam Varshavchik
2019-10-06 22:42 ` Stefan Kangas
2019-10-07 18:51   ` Alan Mackenzie [this message]
2019-10-07 19:04     ` Stefan Kangas
2019-10-19 16:13   ` Alan Mackenzie
2019-10-20 13:36     ` Stefan Kangas
2019-10-20 17:04       ` Alan Mackenzie
2019-10-20 23:12       ` Sam Varshavchik

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20191007185135.GA5606@ACM \
    --to=acm@muc.de \
    --cc=18134@debbugs.gnu.org \
    --cc=sam.varshavchik@gmail.com \
    --cc=stefan@marxist.se \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
Code repositories for project(s) associated with this external index

	https://git.savannah.gnu.org/cgit/emacs.git
	https://git.savannah.gnu.org/cgit/emacs/org-mode.git

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.