all messages for Emacs-related lists mirrored at yhetil.org
 help / color / mirror / code / Atom feed
From: Chong Yidong <cyd@gnu.org>
To: emacs-devel@gnu.org
Subject: Setting bidi-paragraph-direction in comint modes
Date: Tue, 14 Feb 2012 14:35:52 +0800	[thread overview]
Message-ID: <87vcn9zzuf.fsf@gnu.org> (raw)

Any objections to setting bidi-paragraph-direction to `left-to-right' in
Comint and derived modes?  The bidi code appears to lead to a
performance regression.  You can observe this with

1. emacs -Q
2. M-x shell RET
3. ls /usr/share/doc    (Prints about 2000 lines on my computer)
4. Repeat step 3 many times.

As the buffer gets to about 8000 lines, redisplay slows to a crawl.
Setting bidi-paragraph-direction to `left-to-right' fixes this (mostly;
it's still a touch slower than in Emacs 23).  AFAICT, bidi paragraphs
don't make sense in Comint-like modes anyway.



             reply	other threads:[~2012-02-14  6:35 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-02-14  6:35 Chong Yidong [this message]
2012-02-14 17:52 ` Setting bidi-paragraph-direction in comint modes Stefan Monnier
2012-02-14 17:55 ` Eli Zaretskii
2012-02-15  0:49   ` Chong Yidong
2012-02-15  4:01     ` Eli Zaretskii
2012-02-15  6:24       ` Chong Yidong
2012-02-15 17:01         ` Eli Zaretskii
2012-02-17  5:44           ` Chong Yidong
2012-02-15 17:46         ` Johan Bockgård
2012-02-15 18:33           ` Eli Zaretskii

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=87vcn9zzuf.fsf@gnu.org \
    --to=cyd@gnu.org \
    --cc=emacs-devel@gnu.org \
    /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.