GNU bug report logs - #632
23.0.60; Turning off visual-line-mode ignores previous value of truncate-lines

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Package: emacs;

Reported by: Lawrence Mitchell <wence <at> gmx.li>

Date: Wed, 30 Jul 2008 15:25:05 UTC

Severity: normal

Done: Chong Yidong <cyd <at> stupidchicken.com>

Bug is archived. No further changes may be made.

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Report forwarded to bug-submit-list <at> lists.donarmstrong.com, Emacs Bugs <bug-gnu-emacs <at> gnu.org>:
bug#632; Package emacs. Full text and rfc822 format available.
Acknowledgement sent to Lawrence Mitchell <wence <at> gmx.li>:
New bug report received and forwarded. Copy sent to Emacs Bugs <bug-gnu-emacs <at> gnu.org>. Full text and rfc822 format available.

Message #5 received at submit <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Lawrence Mitchell <wence <at> gmx.li>
To: emacs-pretest-bug <at> gnu.org
Subject: 23.0.60; Turning off visual-line-mode ignores previous value of
	truncate-lines
Date: Wed, 30 Jul 2008 16:18:51 +0100

If a buffer with `truncate-lines' set to t is put in
visual-line-mode and subsequently visual-line-mode is turned off,
the value of truncate-lines is lost (it is set to the default value).

Steps to reproduce:

1) emacs -Q
2) evaluate

(progn
  (switch-to-buffer (generate-new-buffer "bug"))
  (setq truncate-partial-width-windows nil)
  (setq-default truncate-lines nil)
  (setq truncate-lines t)
  (insert (make-string (+ (window-width) 10) ?a))
  (goto-char (point-min))
  (visual-line-mode -1))

Expected result:
truncate-lines is t in the buffer "bug"

Actual result:
truncate-lines is nil (the default value).

In GNU Emacs 23.0.60.1 (i686-pc-linux-gnu, X toolkit, Xaw3d scroll bars)
 of 2008-07-24 on lamacq.ph.ed.ac.uk
Windowing system distributor `The X.Org Foundation', version 11.0.60802000
configured using `configure  '-C' '--prefix=/scratch/s0198183/applications/emacs-trunk/' 'CFLAGS=-ggdb3 -O0''

Cheers,
Lawrence

-- 
Lawrence Mitchell <wence <at> gmx.li>
Reply sent to Chong Yidong <cyd <at> stupidchicken.com>:
You have taken responsibility. Full text and rfc822 format available.
Notification sent to Lawrence Mitchell <wence <at> gmx.li>:
bug acknowledged by developer. Full text and rfc822 format available.

Message #10 received at 632-done <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Chong Yidong <cyd <at> stupidchicken.com>
To: Lawrence Mitchell <wence <at> gmx.li>
Cc: 632-done <at> debbugs.gnu.org
Subject: Re: 23.0.60; Turning off visual-line-mode ignores previous value of truncate-lines
Date: Tue, 12 Aug 2008 15:41:12 -0400

> If a buffer with `truncate-lines' set to t is put in visual-line-mode
> and subsequently visual-line-mode is turned off, the value of
> truncate-lines is lost (it is set to the default value).

I've checked in a fix.  Thanks.
bug archived. Request was from Debbugs Internal Request <don <at> donarmstrong.com> to internal_control <at> emacsbugs.donarmstrong.com. (Wed, 10 Sep 2008 14:24:07 GMT) Full text and rfc822 format available.
This bug report was last modified 16 years and 280 days ago.

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