delete-char vs "mouse-region" and "transient-mark-region"

delete-char vs "mouse-region" and "transient-mark-region"

[Mathias Dahl]

This bug report will be sent to the Free Software Foundation,
not to your local site managers!
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:

1. $ emacs -q

2. Create two lines of text:

line1
line2

3. Mark the first one using the mouse and press C-d (delete-char). The
   marked region will be deleted.

4. Mark the second line using transient mark mode (C-SPC C-CPC C-e)
   and press C-d. The region will not be deleted.

Is it just me or would others also like to have both these marked
regions behave in the same way?

If the decision is to delete the region in both cases, may I suggest
that DEL (<backspace>) also deletes marked text?

/Mathias

In GNU Emacs 22.0.50.1 (i386-mingw-nt5.1.2600)
 of 2005-06-26 on NONIQPC
X server distributor `Microsoft Corp.', version 5.1.2600
configured using `configure --with-gcc (3.3) --cflags -I../../jpeg-6b-3/include -I../../libpng-1.2.8/include -I../../tiff-3.6.1-2/include -I../../xpm-nox-4.2.0/include -I../../zlib-1.2.2/include'

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: SVE
  locale-coding-system: cp1252
  default-enable-multibyte-characters: t

Major mode: Message

Minor modes in effect:
  recentf-mode: t
  mml-mode: t
  jabber-activity-mode: t
  iswitchb-mode: t
  display-time-mode: t
  icomplete-mode: t
  partial-completion-mode: t
  desktop-save-mode: t
  file-name-shadow-mode: t
  encoded-kbd-mode: t
  mouse-wheel-mode: t
  tooltip-mode: t
  auto-compression-mode: t
  menu-bar-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  column-number-mode: t
  line-number-mode: t
  next-error-follow-minor-mode:  Fol
  abbrev-mode: t

Recent input:
SPC v s SPC m o u s e - <left> <left> <left> <left> 
<left> <left> " <end> r e g i o n " SPC a n f SPC " 
<backspace> <backspace> <backspace> d SPC " t r a n 
s i e n t - m a r k - r e g i o n " <C-end> <return> 
M-x r e p o r t <tab> <return> C-x o <up> <up> <up> 
<up> <up> <right> <right> <right> <right> <right> <right> 
<right> <right> <right> <right> <left> C-SPC <end> 
M-w C-x i C-x o <down> M-x <up> <end> <return>

Recent messages:
Opening nntp server on news.individual.net...done
Fetching headers for nntp+news.individual.net:gnu.emacs.help...done
Generating summary...done
Mark all unread articles as read? (y or n) 
Retrieving newsgroup: nntp+news.individual.net:gnu.emacs.bug...
Fetching headers for nntp+news.individual.net:gnu.emacs.bug...done
Generating summary...done
C-d runs the command delete-char
Mark set
Loading emacsbug...done
byte-code: Command attempted to use minibuffer while in minibuffer

Re: delete-char vs "mouse-region" and "transient-mark-region"

[Richard M. Stallman]

    1. $ emacs -q

    2. Create two lines of text:

    line1
    line2

    3. Mark the first one using the mouse and press C-d (delete-char). The
       marked region will be deleted.

That does not happen when I try it.  C-d just deletes the character
after point.

    In GNU Emacs 22.0.50.1 (i386-mingw-nt5.1.2600)
     of 2005-06-26 on NONIQPC
    X server distributor `Microsoft Corp.', version 5.1.2600
    configured using `configure --with-gcc (3.3) --cflags -I../../jpeg-6b-3/include -I../../libpng-1.2.8/include -I../../tiff-3.6.1-2/include -I../../xpm-nox-4.2.0/include -I../../zlib-1.2.2/include'

Did someone make Emacs on Windows behave differently in this situation?

Re: delete-char vs "mouse-region" and "transient-mark-region"

[Mathias Dahl]

"Richard M. Stallman" <rms@gnu.org> writes:

>     1. $ emacs -q
>
>     2. Create two lines of text:
>
>     line1
>     line2
>
>     3. Mark the first one using the mouse and press C-d (delete-char). The
>        marked region will be deleted.
>
> That does not happen when I try it.  C-d just deletes the character
> after point.

Same for me, testing with both Emacs 21.3 and 22 (CVS) under
GNU/Linux. 

>
>     In GNU Emacs 22.0.50.1 (i386-mingw-nt5.1.2600)
>      of 2005-06-26 on NONIQPC
>     X server distributor `Microsoft Corp.', version 5.1.2600
>     configured using `configure --with-gcc (3.3) --cflags -I../../jpeg-6b-3/include -I../../libpng-1.2.8/include -I../../tiff-3.6.1-2/include -I../../xpm-nox-4.2.0/include -I../../zlib-1.2.2/include'
>
> Did someone make Emacs on Windows behave differently in this situation?


I will test again on Windows and verify if it works differently there.

Re: delete-char vs "mouse-region" and "transient-mark-region"

[Mathias Dahl]

Mathias Dahl <brakjoller@gmail.com> writes:

> "Richard M. Stallman" <rms@gnu.org> writes:
>
>>     1. $ emacs -q
>>
>>     2. Create two lines of text:
>>
>>     line1
>>     line2
>>
>>     3. Mark the first one using the mouse and press C-d (delete-char). The
>>        marked region will be deleted.
>>
>> That does not happen when I try it.  C-d just deletes the character
>> after point.
>
> Same for me, testing with both Emacs 21.3 and 22 (CVS) under
> GNU/Linux. 
>
>>
>>     In GNU Emacs 22.0.50.1 (i386-mingw-nt5.1.2600)
>>      of 2005-06-26 on NONIQPC
>>     X server distributor `Microsoft Corp.', version 5.1.2600
>>     configured using `configure --with-gcc (3.3) --cflags -I../../jpeg-6b-3/include -I../../libpng-1.2.8/include -I../../tiff-3.6.1-2/include -I../../xpm-nox-4.2.0/include -I../../zlib-1.2.2/include'
>>
>> Did someone make Emacs on Windows behave differently in this situation?
>
>
> I will test again on Windows and verify if it works differently there.

Hmm, I tested again now and now it works the same. Sorry for the
noise.

/Mathias