unofficial mirror of emacs-devel@gnu.org 
 help / color / mirror / code / Atom feed
From: David Kastrup <dak@gnu.org>
Cc: eliz@gnu.org, emacs-devel@gnu.org, "Kim F. Storm" <storm@cua.dk>
Subject: Re: C-n is very slow in Font-Lock mode
Date: Thu, 28 Apr 2005 14:16:49 +0200	[thread overview]
Message-ID: <85is2785am.fsf@lola.goethe.zz> (raw)
In-Reply-To: <E1DR6lM-0005v3-LU@fencepost.gnu.org> (Richard Stallman's message of "Thu, 28 Apr 2005 07:00:56 -0400")

Richard Stallman <rms@gnu.org> writes:

>     Maybe this would work ? 
>
> 	  (if (input-pending-p)
> 	      (forward-line 1)
> 	    (vertical-motion 1))
>
> It is incorrect for a cursor motion function to depend on whether
> input is pending.

Agreed.  I think it would be reasonable to allow some setting where
the cursor motion happened without mandatory fontification in some
rare circumstances when the display is delayed, but to generally flip
the behavior around depending on that sounds overdone.  It should be
restricted to the performance critical case of fontification, it
should be optional, and should rarely have an effect unless
unexpectedly large unfontified areas amount point are involved.

-- 
David Kastrup, Kriemhildstr. 15, 44793 Bochum

  reply	other threads:[~2005-04-28 12:16 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-04-23 16:16 C-n is very slow in Font-Lock mode Richard Stallman
2005-04-23 20:17 ` Eli Zaretskii
2005-04-24 21:23   ` Richard Stallman
2005-04-24 21:50     ` Eli Zaretskii
2005-04-26 10:05       ` Richard Stallman
2005-04-26 10:27         ` David Kastrup
2005-04-26 22:56           ` Richard Stallman
2005-04-27  8:59             ` Kim F. Storm
2005-04-27  9:57               ` Eli Zaretskii
2005-04-27 12:27                 ` Kim F. Storm
2005-04-27  9:06             ` Eli Zaretskii
2005-04-28 11:00               ` Richard Stallman
2005-04-26 18:05         ` Eli Zaretskii
2005-04-26 21:38           ` David Kastrup
2005-04-26 22:43             ` Eli Zaretskii
2005-04-26 22:57               ` David Kastrup
2005-04-27  9:19                 ` Eli Zaretskii
2005-04-27  9:43                   ` David Kastrup
2005-04-27 10:17                     ` Eli Zaretskii
2005-04-27 11:32                       ` David Kastrup
2005-04-27 11:59                         ` Eli Zaretskii
2005-04-27 12:23                           ` David Kastrup
2005-04-27 12:32                           ` Kim F. Storm
2005-04-28 11:00                             ` Richard Stallman
2005-04-28 12:16                               ` David Kastrup [this message]
2005-04-28 11:00                         ` Richard Stallman

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

  List information: https://www.gnu.org/software/emacs/

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

  git send-email \
    --in-reply-to=85is2785am.fsf@lola.goethe.zz \
    --to=dak@gnu.org \
    --cc=eliz@gnu.org \
    --cc=emacs-devel@gnu.org \
    --cc=storm@cua.dk \
    /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 public inbox

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

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).