From: Richard Stallman <rms@gnu.org>
Cc: emacs-devel@gnu.org
Subject: [schwab@suse.de: Display bug with miscomputed window-start]
Date: Mon, 28 Oct 2002 22:02:11 -0500 [thread overview]
Message-ID: <E186Mdv-0007EB-00@fencepost.gnu.org> (raw)
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 1789 bytes --]
Since this is in redisplay, could you look at it?
------- Start of forwarded message -------
Envelope-to: rms@gnu.org
Delivery-date: Mon, 28 Oct 2002 11:54:08 -0500
X-Authentication-Warning: sykes.suse.de: schwab set sender to schwab@suse.de using -f
To: emacs-devel@gnu.org
Subject: Display bug with miscomputed window-start
X-Yow: I don't think you fellows would do so much RAPING and PILLAGING if
you
played more PINBALL and watched CABLE TELEVISION!!
From: Andreas Schwab <schwab@suse.de>
Sender: emacs-devel-admin@gnu.org
Date: Mon, 28 Oct 2002 17:48:49 +0100
Redisplay does not correctly handle characters that wrap around at the
right margin. To reproduce:
- - Insert a bunch of ^A (C-q C-a) in a buffer so that the line wraps around
- - Go to point-min
- - If there is an even number of columns insert a space, so that the last
^A in the line wraps around, i.e the ^ is in the last column and the A
appears at the start of the next screen line.
- - Do M-1 C-v (scroll-up 1)
The cursor will now be somewhere in the middle of the window, maybe not
even inside any buffer text. Now click on first visible ^A to move point
there and evaluate (list (point) (window-start)). You will get two
different numbers that are off by one (`(42 41)' for an 80 column
display).
Note that if you change the character that wraps around to a TAB this bug
does not occur.
Andreas.
- --
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux AG, Deutschherrnstr. 15-19, D-90429 Nürnberg
Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
_______________________________________________
Emacs-devel mailing list
Emacs-devel@gnu.org
http://mail.gnu.org/mailman/listinfo/emacs-devel
------- End of forwarded message -------
next reply other threads:[~2002-10-29 3:02 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-29 3:02 Richard Stallman [this message]
2002-10-29 4:53 ` [schwab@suse.de: Display bug with miscomputed window-start] Ein Terakawa
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=E186Mdv-0007EB-00@fencepost.gnu.org \
--to=rms@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 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).