bug#3188: up-down arrows not functioning properly

bug#3188: up-down arrows not functioning properly

[Angelo Borsotti]

To: emacs-pretest-bug@gnu.org
Subject: 23.0.92; up-down arrows not functioning properly
--text follows this line--

Please write in English if possible, because the Emacs maintainers
usually do not have translators to read other languages for them.

Your bug report will be posted to the emacs-pretest-bug@gnu.org mailing list.

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

Open Emacs, display the scratch buffer, and place the cursor in the middle
of the second line, then hit the up arrow: the cursor is moved at the
beginning of the first line. Likewise, the down arrow moves the cursor
at the beginning of the third line, instead of moving it one line up
or down, but at the same column.

If Emacs crashed, and you have the Emacs process in the gdb debugger,
please include the output from the following gdb commands:
    `bt full' and `xbacktrace'.
If you would like to further debug the crash, please read the file
/usr/share/emacs/23.0.92/etc/DEBUG for instructions.


In GNU Emacs 23.0.92.1 (i486-pc-linux-gnu, GTK+ Version 2.16.1)
 of 2009-04-24 on iridium, modified by Debian
 (emacs-snapshot package, version 1:20090423-1~jaunty1)
Windowing system distributor `The X.Org Foundation', version 11.0.10600000
configured using `configure  '--build' 'i486-linux-gnu' '--host'
'i486-linux-gnu' '--prefix=/usr' '--sharedstatedir=/var/lib'
'--libexecdir=/usr/lib' '--localstatedir=/var'
'--infodir=/usr/share/info' '--mandir=/usr/share/man' '--with-pop=yes'
'--enable-locallisppath=/etc/emacs-snapshot:/etc/emacs:/usr/local/share/emacs/23.0.92/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/23.0.92/site-lisp:/usr/share/emacs/site-lisp'
'--with-x=yes' '--with-x-toolkit=gtk' 'build_alias=i486-linux-gnu'
'host_alias=i486-linux-gnu' 'CFLAGS=-DDEBIAN
-DSITELOAD_PURESIZE_EXTRA=5000 -g -O2' 'LDFLAGS=-g -Wl,--as-needed'
'CPPFLAGS=''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_US.UTF-8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default-enable-multibyte-characters: t

Major mode: Lisp Interaction

Minor modes in effect:
  global-hl-line-mode: t
  show-paren-mode: t
  cua-mode: t
  tooltip-mode: t
  tool-bar-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  global-auto-composition-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
<help-echo> <help-echo> <help-echo> <help-echo> <menu-bar>
<buffer> C-a <up> <up> <up> <up> <right> <right> <right>
<right> <right> <right> <right> <right> <right> <right>
<down> <down> <up> <up> <right> <right> <right> <help-echo>
M-x r e q <backspace> p <tab> o <tab> <down-mouse-1>
<mouse-2>

Recent messages:
Loading 00debian-vars...done
Loading /etc/emacs/site-start.d/50dictionaries-common.el (source)...
Skipping dictionaries-common setup for emacs-snapshot
Loading /etc/emacs/site-start.d/50dictionaries-common.el (source)...done
Loading cua-base...done
Loading paren...done
For information about GNU Emacs and the GNU system, type C-h C-a.
Loading /home/angelo/.edt-gnu-The-X.Org-Foundation-X-keys...done
Default EDT keymap active
Making completion list... [2 times]

bug#3188: up-down arrows not functioning properly

[Chong Yidong]

> Open Emacs, display the scratch buffer, and place the cursor in the
> middle of the second line, then hit the up arrow: the cursor is moved
> at the beginning of the first line. Likewise, the down arrow moves the
> cursor at the beginning of the third line, instead of moving it one
> line up or down, but at the same column.

I can't reproduce this.  Please provide the exact sequence of keystrokes
you used, starting from `emacs -Q'.