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#48871
27.2; Unusably slow in C# mode
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Message #32 received at 48871 <at> debbugs.gnu.org (full text, mbox):
Hello, Jan and Eli.
On Sun, Jun 06, 2021 at 19:22:17 +0100, jan wrote:
> Ah... well... yeah...
> searching for "c-pps-to-string-delim" finds this
> <https://github.com/emacs-csharp/csharp-mode/issues/207>, similar to
> what I referenced in my initial post.
> Neither are very optimistic. If this is a wontfix I'll understand.
This is indeed a string problem in CC Mode. More precisely, it's a
multi-line string problem, such being started in C# mode by @". For
some very bad reason (which I've got written down somewhere) CC Mode is
scanning to the end of the buffer for each character inserted. Sorry.
As a workaround, if you don't have any multi-line strings in your
source, put the following in your csharp-mode-hook:
(setq c-multiline-string-start-char nil)
.. That should get rid of the excessive scanning for the time being.
I've spent much of the last few weeks adapting the C++ raw string
mechanism also to handle multi-line strings in other languages such as
C#. I'm hoping to have it up and running soon. Then, perhaps, the C#
Mode maintainer will incorporate it into C# Mode, which should be a
straightforward task.
> cheers
> jan
> On 06/06/2021, Eli Zaretskii <eliz <at> gnu.org> wrote:
> >> From: jan <rtm443x <at> googlemail.com>
> >> Date: Sun, 6 Jun 2021 19:00:57 +0100
> >> Cc: Alan Mackenzie <acm <at> muc.de>, 48871 <at> debbugs.gnu.org
> >> Looks like strings doing it.
> > Well, the fact that c-pps-to-string-delim is the hot spot kinda says
> > that...
--
Alan Mackenzie (Nuremberg, Germany).
This bug report was last modified 4 years and 8 days ago.
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