* Re: Removing line and column number settings from some buffers
2020-12-04 2:10 ` daniela-spit
@ 2020-12-04 2:42 ` Christopher Dimech
2020-12-04 6:10 ` Jean Louis
2020-12-04 2:46 ` Michael Heerdegen
` (2 subsequent siblings)
3 siblings, 1 reply; 45+ messages in thread
From: Christopher Dimech @ 2020-12-04 2:42 UTC (permalink / raw)
To: daniela-spit; +Cc: Michael Heerdegen, help-gnu-emacs
> Sent: Friday, December 04, 2020 at 3:10 AM
> From: daniela-spit@gmx.it
> To: "Christopher Dimech" <dimech@gmx.com>
> Cc: "Michael Heerdegen" <michael_heerdegen@web.de>, help-gnu-emacs@gnu.org
> Subject: Re: Removing line and column number settings from some buffers
>
>
>
> > Sent: Friday, December 04, 2020 at 2:33 AM
> > From: "Christopher Dimech" <dimech@gmx.com>
> > To: "Michael Heerdegen" <michael_heerdegen@web.de>, daniela-spit@gmx.it
> > Cc: help-gnu-emacs@gnu.org
> > Subject: Re: Removing line and column number settings from some buffers
> >
> >
> >
> >
> > > Sent: Friday, December 04, 2020 at 2:16 AM
> > > From: "Michael Heerdegen" <michael_heerdegen@web.de>
> > > To: help-gnu-emacs@gnu.org
> > > Subject: Re: Removing line and column number settings from some buffers
> > >
> > > Christopher Dimech <dimech@gmx.com> writes:
> > >
> > > > > > > (setq mode-line-format
> > > > > > > (list
> > > > > > > "%e"
> > > > > > > " "
> > > > > > > " "
> > > > > > > 'mode-line-modes 'mode-line-misc-info
> > > > > > > 'mode-line-end-spaces) )
> > > > > > >
> > > > > > > (force-mode-line-update)
> > > >
> > > > Have put the code in my init, and the mode line is also not being
> > > > updated. Even after firing new Emacs Sessions.
> > >
> > > This does only modify the mode-line of the buffer that is current when
> > > that code is loaded, so this is expected.
> >
> > I see. Have put it in a file and hit "M-x eval-region". And then the change
> > happens.
>
> At least I say things changing.
>
> What I want to do is to change the Mode Line, but then revert back to how it
> was in that buffer, by continue pressing same keybinding. Can I store the
> old setup and then put it back again.
Have got some code to cycle commands. Shall try to dig that out. But I don't
know much about changing the mode line.
> > > Michael.
> > >
> > >
> > >
> >
> > ---------------------
> > Christopher Dimech
> > General Administrator - Naiad Informatics - GNU Project (Geocomputation)
> > - Geophysical Simulation
> > - Geological Subsurface Mapping
> > - Disaster Preparedness and Mitigation
> > - Natural Resource Exploration and Production
> > - Free Software Advocacy
> >
> >
>
^ permalink raw reply [flat|nested] 45+ messages in thread* Re: Removing line and column number settings from some buffers
2020-12-04 2:42 ` Christopher Dimech
@ 2020-12-04 6:10 ` Jean Louis
2020-12-04 6:31 ` Christopher Dimech
` (2 more replies)
0 siblings, 3 replies; 45+ messages in thread
From: Jean Louis @ 2020-12-04 6:10 UTC (permalink / raw)
To: Christopher Dimech; +Cc: Michael Heerdegen, daniela-spit, help-gnu-emacs
> > What I want to do is to change the Mode Line, but then revert back to how it
> > was in that buffer, by continue pressing same keybinding. Can I store the
> > old setup and then put it back again.
>
> Have got some code to cycle commands. Shall try to dig that out. But I don't
> know much about changing the mode line.
For session based storage, you may use the Emacs built-in library
`ring' as it has cycling features, you store anything in ring variable
and you can take it back and cycle through it.
^ permalink raw reply [flat|nested] 45+ messages in thread* Re: Removing line and column number settings from some buffers
2020-12-04 6:10 ` Jean Louis
@ 2020-12-04 6:31 ` Christopher Dimech
2020-12-04 8:40 ` Eli Zaretskii
2020-12-05 5:13 ` Christopher Dimech
2 siblings, 0 replies; 45+ messages in thread
From: Christopher Dimech @ 2020-12-04 6:31 UTC (permalink / raw)
To: Jean Louis; +Cc: Michael Heerdegen, help-gnu-emacs
> Sent: Friday, December 04, 2020 at 7:10 AM
> From: "Jean Louis" <bugs@gnu.support>
> To: "Christopher Dimech" <dimech@gmx.com>
> Cc: daniela-spit@gmx.it, "Michael Heerdegen" <michael_heerdegen@web.de>, help-gnu-emacs@gnu.org
> Subject: Re: Removing line and column number settings from some buffers
>
> > > What I want to do is to change the Mode Line, but then revert back to how it
> > > was in that buffer, by continue pressing same keybinding. Can I store the
> > > old setup and then put it back again.
> >
> > Have got some code to cycle commands. Shall try to dig that out. But I don't
> > know much about changing the mode line.
>
> For session based storage, you may use the Emacs built-in library
> `ring' as it has cycling features, you store anything in ring variable
> and you can take it back and cycle through it.
I had been updating the function state to loop. Never got into the ring
variable.
^ permalink raw reply [flat|nested] 45+ messages in thread
* Re: Removing line and column number settings from some buffers
2020-12-04 6:10 ` Jean Louis
2020-12-04 6:31 ` Christopher Dimech
@ 2020-12-04 8:40 ` Eli Zaretskii
2020-12-05 5:13 ` Christopher Dimech
2 siblings, 0 replies; 45+ messages in thread
From: Eli Zaretskii @ 2020-12-04 8:40 UTC (permalink / raw)
To: help-gnu-emacs
> Date: Fri, 4 Dec 2020 09:10:32 +0300
> From: Jean Louis <bugs@gnu.support>
> Cc: Michael Heerdegen <michael_heerdegen@web.de>, daniela-spit@gmx.it,
> help-gnu-emacs@gnu.org
>
> For session based storage, you may use the Emacs built-in library
> `ring' as it has cycling features, you store anything in ring variable
> and you can take it back and cycle through it.
My suggestion is to use desktop.el for preserving state between
sessions. It has a customizable option to add variables to save and
restore.
^ permalink raw reply [flat|nested] 45+ messages in thread
* Re: Removing line and column number settings from some buffers
2020-12-04 6:10 ` Jean Louis
2020-12-04 6:31 ` Christopher Dimech
2020-12-04 8:40 ` Eli Zaretskii
@ 2020-12-05 5:13 ` Christopher Dimech
2020-12-05 15:41 ` Drew Adams
2 siblings, 1 reply; 45+ messages in thread
From: Christopher Dimech @ 2020-12-05 5:13 UTC (permalink / raw)
To: Jean Louis; +Cc: Michael Heerdegen, help-gnu-emacs
> Sent: Friday, December 04, 2020 at 7:10 AM
> From: "Jean Louis" <bugs@gnu.support>
> To: "Christopher Dimech" <dimech@gmx.com>
> Cc: daniela-spit@gmx.it, "Michael Heerdegen" <michael_heerdegen@web.de>, help-gnu-emacs@gnu.org
> Subject: Re: Removing line and column number settings from some buffers
>
> > > What I want to do is to change the Mode Line, but then revert back to how it
> > > was in that buffer, by continue pressing same keybinding. Can I store the
> > > old setup and then put it back again.
> >
> > Have got some code to cycle commands. Shall try to dig that out. But I don't
> > know much about changing the mode line.
>
> For session based storage, you may use the Emacs built-in library
> `ring' as it has cycling features, you store anything in ring variable
> and you can take it back and cycle through it.
No experience with ring. How is it used and what do you do? Suppose I want a keybinding
to cycle auto-fill with three things.
1. Auto-Fill Comments
2. Auto-Fill Entire Buffer
3. Disable Auto-Fill
^ permalink raw reply [flat|nested] 45+ messages in thread
* RE: Removing line and column number settings from some buffers
2020-12-05 5:13 ` Christopher Dimech
@ 2020-12-05 15:41 ` Drew Adams
2020-12-05 17:58 ` Jean Louis
0 siblings, 1 reply; 45+ messages in thread
From: Drew Adams @ 2020-12-05 15:41 UTC (permalink / raw)
To: Christopher Dimech, Jean Louis; +Cc: Michael Heerdegen, help-gnu-emacs
> No experience with ring. How is it used and what do you do? Suppose I
> want a keybinding to cycle auto-fill with three things.
>
> 1. Auto-Fill Comments
> 2. Auto-Fill Entire Buffer
> 3. Disable Auto-Fill
https://lists.gnu.org/archive/html/help-gnu-emacs/2020-11/msg00392.html
And you do have experience with Emacs rings, even if you're not aware of it:
`C-h v search-ring'
`C-h v regexp-search-ring'
^ permalink raw reply [flat|nested] 45+ messages in thread
* Re: Removing line and column number settings from some buffers
2020-12-05 15:41 ` Drew Adams
@ 2020-12-05 17:58 ` Jean Louis
2020-12-05 18:16 ` Drew Adams
0 siblings, 1 reply; 45+ messages in thread
From: Jean Louis @ 2020-12-05 17:58 UTC (permalink / raw)
To: Drew Adams; +Cc: Michael Heerdegen, Christopher Dimech, help-gnu-emacs
* Drew Adams <drew.adams@oracle.com> [2020-12-05 18:42]:
> > No experience with ring. How is it used and what do you do? Suppose I
> > want a keybinding to cycle auto-fill with three things.
> >
> > 1. Auto-Fill Comments
> > 2. Auto-Fill Entire Buffer
> > 3. Disable Auto-Fill
>
>
> https://lists.gnu.org/archive/html/help-gnu-emacs/2020-11/msg00392.html
>
> And you do have experience with Emacs rings, even if you're not aware of it:
>
> `C-h v search-ring'
> `C-h v regexp-search-ring'
Please help with `toto' in this example.
On the other hand, if you want to be able to go either
forward or backward then you might want to use a ring
(as defined in standard library ring.el):
(defvar ring (ring-convert-sequence-to-ring '(nil t always)))
(defvar current nil)
(defun next ()
(interactive)
(setq current (ring-next toto current))
(message "NOW: %s" current))
(defun previous ()
(interactive)
(setq current (ring-previous toto current))
(message "NOW: %s" current))
^ permalink raw reply [flat|nested] 45+ messages in thread
* RE: Removing line and column number settings from some buffers
2020-12-05 17:58 ` Jean Louis
@ 2020-12-05 18:16 ` Drew Adams
2020-12-05 18:57 ` Jean Louis
0 siblings, 1 reply; 45+ messages in thread
From: Drew Adams @ 2020-12-05 18:16 UTC (permalink / raw)
To: Jean Louis; +Cc: Michael Heerdegen, Christopher Dimech, help-gnu-emacs
> Please help with `toto' in this example.
>
> On the other hand, if you want to be able to go either
> forward or backward then you might want to use a ring
> (as defined in standard library ring.el):
>
> (defvar ring (ring-convert-sequence-to-ring '(nil t always)))
^^^^
> (defvar current nil)
>
> (defun next ()
> (interactive)
> (setq current (ring-next toto current))
^^^^
> (message "NOW: %s" current))
>
> (defun previous ()
> (interactive)
> (setq current (ring-previous toto current))
^^^^
> (message "NOW: %s" current))
Sorry, typo. Variable `toto' should be variable `ring'.
(Or vice versa - there should be only one ring variable.)
^ permalink raw reply [flat|nested] 45+ messages in thread* Re: Removing line and column number settings from some buffers
2020-12-05 18:16 ` Drew Adams
@ 2020-12-05 18:57 ` Jean Louis
0 siblings, 0 replies; 45+ messages in thread
From: Jean Louis @ 2020-12-05 18:57 UTC (permalink / raw)
To: Drew Adams; +Cc: Michael Heerdegen, Christopher Dimech, help-gnu-emacs
(defvar ring (ring-convert-sequence-to-ring '(nil t always)))
(defvar current nil)
(defun next ()
(interactive)
(setq current (ring-next ring current))
(message "NOW: %s" current))
(defun previous ()
(interactive)
(setq current (ring-previous ring current))
(message "NOW: %s" current))
> Sorry, typo. Variable `toto' should be variable `ring'.
> (Or vice versa - there should be only one ring variable.)
(previous)
(next)
Thank you. That built-in feature is great and I can use it for history
in Hyperscope dynamic knowledge repository.
^ permalink raw reply [flat|nested] 45+ messages in thread
* Re: Removing line and column number settings from some buffers
2020-12-04 2:10 ` daniela-spit
2020-12-04 2:42 ` Christopher Dimech
@ 2020-12-04 2:46 ` Michael Heerdegen
2020-12-04 3:12 ` Christopher Dimech
2020-12-04 4:16 ` daniela-spit
2020-12-04 6:07 ` Jean Louis
3 siblings, 1 reply; 45+ messages in thread
From: Michael Heerdegen @ 2020-12-04 2:46 UTC (permalink / raw)
To: help-gnu-emacs
daniela-spit@gmx.it writes:
> What I want to do is to change the Mode Line, but then revert back to how it
> was in that buffer, by continue pressing same keybinding. Can I store the
> old setup and then put it back again.
Yes. Just store the old value in a (buffer local) variable.
Regards,
Michael.
^ permalink raw reply [flat|nested] 45+ messages in thread
* Re: Removing line and column number settings from some buffers
2020-12-04 2:46 ` Michael Heerdegen
@ 2020-12-04 3:12 ` Christopher Dimech
0 siblings, 0 replies; 45+ messages in thread
From: Christopher Dimech @ 2020-12-04 3:12 UTC (permalink / raw)
To: Michael Heerdegen, daniela-spit; +Cc: help-gnu-emacs
> Sent: Friday, December 04, 2020 at 3:46 AM
> From: "Michael Heerdegen" <michael_heerdegen@web.de>
> To: help-gnu-emacs@gnu.org
> Subject: Re: Removing line and column number settings from some buffers
>
> daniela-spit@gmx.it writes:
>
> > What I want to do is to change the Mode Line, but then revert back to how it
> > was in that buffer, by continue pressing same keybinding. Can I store the
> > old setup and then put it back again.
>
> Yes. Just store the old value in a (buffer local) variable.
Been reading hard on buffer local.
Perhaps she can do like so
;; Store current value of mode-line-format
(setq-local original-mode-line-format mode-line-format)
;; Put original mode-line-format
(setq mode-line-format original-mode-line-format)
Hope I have not got the commands wrong for her case. If I do, my apologies.
> Regards,
>
> Michael.
>
>
>
^ permalink raw reply [flat|nested] 45+ messages in thread
* Re: Removing line and column number settings from some buffers
2020-12-04 2:10 ` daniela-spit
2020-12-04 2:42 ` Christopher Dimech
2020-12-04 2:46 ` Michael Heerdegen
@ 2020-12-04 4:16 ` daniela-spit
2020-12-04 4:36 ` daniela-spit
2020-12-04 7:40 ` Jean Louis
2020-12-04 6:07 ` Jean Louis
3 siblings, 2 replies; 45+ messages in thread
From: daniela-spit @ 2020-12-04 4:16 UTC (permalink / raw)
To: Christopher Dimech; +Cc: Michael Heerdegen, help-gnu-emacs
Can somebody help me make a key binding that cycles
through a function (appt-mode-line n) where 'n' can
be 1, 2 or 3.
Thank you
Daniela
> Sent: Friday, December 04, 2020 at 3:10 AM
> From: daniela-spit@gmx.it
> To: "Christopher Dimech" <dimech@gmx.com>
> Cc: "Michael Heerdegen" <michael_heerdegen@web.de>, help-gnu-emacs@gnu.org
> Subject: Re: Removing line and column number settings from some buffers
>
>
>
> > Sent: Friday, December 04, 2020 at 2:33 AM
> > From: "Christopher Dimech" <dimech@gmx.com>
> > To: "Michael Heerdegen" <michael_heerdegen@web.de>, daniela-spit@gmx.it
> > Cc: help-gnu-emacs@gnu.org
> > Subject: Re: Removing line and column number settings from some buffers
> >
> >
> >
> >
> > > Sent: Friday, December 04, 2020 at 2:16 AM
> > > From: "Michael Heerdegen" <michael_heerdegen@web.de>
> > > To: help-gnu-emacs@gnu.org
> > > Subject: Re: Removing line and column number settings from some buffers
> > >
> > > Christopher Dimech <dimech@gmx.com> writes:
> > >
> > > > > > > (setq mode-line-format
> > > > > > > (list
> > > > > > > "%e"
> > > > > > > " "
> > > > > > > " "
> > > > > > > 'mode-line-modes 'mode-line-misc-info
> > > > > > > 'mode-line-end-spaces) )
> > > > > > >
> > > > > > > (force-mode-line-update)
> > > >
> > > > Have put the code in my init, and the mode line is also not being
> > > > updated. Even after firing new Emacs Sessions.
> > >
> > > This does only modify the mode-line of the buffer that is current when
> > > that code is loaded, so this is expected.
> >
> > I see. Have put it in a file and hit "M-x eval-region". And then the change
> > happens.
>
> At least I say things changing.
>
> What I want to do is to change the Mode Line, but then revert back to how it
> was in that buffer, by continue pressing same keybinding. Can I store the
> old setup and then put it back again.
>
> >
> > > Michael.
> > >
> > >
> > >
> >
> > ---------------------
> > Christopher Dimech
> > General Administrator - Naiad Informatics - GNU Project (Geocomputation)
> > - Geophysical Simulation
> > - Geological Subsurface Mapping
> > - Disaster Preparedness and Mitigation
> > - Natural Resource Exploration and Production
> > - Free Software Advocacy
> >
> >
>
^ permalink raw reply [flat|nested] 45+ messages in thread
* Re: Removing line and column number settings from some buffers
2020-12-04 4:16 ` daniela-spit
@ 2020-12-04 4:36 ` daniela-spit
2020-12-04 5:58 ` daniela-spit
2020-12-05 21:35 ` Michael Heerdegen
2020-12-04 7:40 ` Jean Louis
1 sibling, 2 replies; 45+ messages in thread
From: daniela-spit @ 2020-12-04 4:36 UTC (permalink / raw)
To: Christopher Dimech; +Cc: Michael Heerdegen, help-gnu-emacs
One problem is how to store (get 'time-frmt-cycle 'state) in a variable.
> Sent: Friday, December 04, 2020 at 5:16 AM
> From: daniela-spit@gmx.it
> To: "Christopher Dimech" <dimech@gmx.com>
> Cc: "Michael Heerdegen" <michael_heerdegen@web.de>, help-gnu-emacs@gnu.org
> Subject: Re: Removing line and column number settings from some buffers
>
> Can somebody help me make a key binding that cycles
> through a function (appt-mode-line n) where 'n' can
> be 1, 2 or 3.
>
> Thank you
> Daniela
>
> > Sent: Friday, December 04, 2020 at 3:10 AM
> > From: daniela-spit@gmx.it
> > To: "Christopher Dimech" <dimech@gmx.com>
> > Cc: "Michael Heerdegen" <michael_heerdegen@web.de>, help-gnu-emacs@gnu.org
> > Subject: Re: Removing line and column number settings from some buffers
> >
> >
> >
> > > Sent: Friday, December 04, 2020 at 2:33 AM
> > > From: "Christopher Dimech" <dimech@gmx.com>
> > > To: "Michael Heerdegen" <michael_heerdegen@web.de>, daniela-spit@gmx.it
> > > Cc: help-gnu-emacs@gnu.org
> > > Subject: Re: Removing line and column number settings from some buffers
> > >
> > >
> > >
> > >
> > > > Sent: Friday, December 04, 2020 at 2:16 AM
> > > > From: "Michael Heerdegen" <michael_heerdegen@web.de>
> > > > To: help-gnu-emacs@gnu.org
> > > > Subject: Re: Removing line and column number settings from some buffers
> > > >
> > > > Christopher Dimech <dimech@gmx.com> writes:
> > > >
> > > > > > > > (setq mode-line-format
> > > > > > > > (list
> > > > > > > > "%e"
> > > > > > > > " "
> > > > > > > > " "
> > > > > > > > 'mode-line-modes 'mode-line-misc-info
> > > > > > > > 'mode-line-end-spaces) )
> > > > > > > >
> > > > > > > > (force-mode-line-update)
> > > > >
> > > > > Have put the code in my init, and the mode line is also not being
> > > > > updated. Even after firing new Emacs Sessions.
> > > >
> > > > This does only modify the mode-line of the buffer that is current when
> > > > that code is loaded, so this is expected.
> > >
> > > I see. Have put it in a file and hit "M-x eval-region". And then the change
> > > happens.
> >
> > At least I say things changing.
> >
> > What I want to do is to change the Mode Line, but then revert back to how it
> > was in that buffer, by continue pressing same keybinding. Can I store the
> > old setup and then put it back again.
> >
> > >
> > > > Michael.
> > > >
> > > >
> > > >
> > >
> > > ---------------------
> > > Christopher Dimech
> > > General Administrator - Naiad Informatics - GNU Project (Geocomputation)
> > > - Geophysical Simulation
> > > - Geological Subsurface Mapping
> > > - Disaster Preparedness and Mitigation
> > > - Natural Resource Exploration and Production
> > > - Free Software Advocacy
> > >
> > >
> >
>
^ permalink raw reply [flat|nested] 45+ messages in thread
* Re: Removing line and column number settings from some buffers
2020-12-04 4:36 ` daniela-spit
@ 2020-12-04 5:58 ` daniela-spit
2020-12-04 7:19 ` Jean Louis
2020-12-05 21:35 ` Michael Heerdegen
1 sibling, 1 reply; 45+ messages in thread
From: daniela-spit @ 2020-12-04 5:58 UTC (permalink / raw)
To: Christopher Dimech; +Cc: Michael Heerdegen, help-gnu-emacs
There is something wrong in resetting the mode line, after trying to save the
original value. Michael has said that code only works if evaluated in a buffer.
Would there be some other call to use?
(defun toggle-mode-line (n)
"Changes Mode Line Information."
(make-local-variable 'mode-line-position)
(make-local-variable 'line-number-mode)
(make-local-variable 'column-number-mode)
(make-local-variable 'mode-line-modes)
(make-local-variable 'mode-line-format)
(make-local-variable 'original-mode-line-format)
(make-local-variable 'mode-line-format)
(cond
((= n 1)
;; Store current value of mode-line-format
(setq original-mode-line-format mode-line-format)
(setq mode-line-position nil)
(setq line-number-mode nil)
(setq column-number-mode nil)
(setq mode-line-modes nil)
;; Set format and discard System Load Averages indicator
(setq display-time-format "W%W %H:%M")
(make-local-variable 'display-time-default-load-average)
(setq display-time-default-load-average nil)
(display-time))
((= n 2)
(setq display-time-format "W%W %H:%M %a %b %d %Y")
(display-time))
((= n 3)
;; Put original mode-line-format
(setq mode-line-position t)
(setq line-number-mode t)
(setq column-number-mode t)
(setq mode-line-modes t)
(setq mode-line-format original-mode-line-format)
(force-mode-line-update)) ))
(make-local-variable 'toggle-mode-line)
> Sent: Friday, December 04, 2020 at 5:36 AM
> From: daniela-spit@gmx.it
> To: "Christopher Dimech" <dimech@gmx.com>
> Cc: "Michael Heerdegen" <michael_heerdegen@web.de>, help-gnu-emacs@gnu.org
> Subject: Re: Removing line and column number settings from some buffers
>
> One problem is how to store (get 'time-frmt-cycle 'state) in a variable.
>
>
> > Sent: Friday, December 04, 2020 at 5:16 AM
> > From: daniela-spit@gmx.it
> > To: "Christopher Dimech" <dimech@gmx.com>
> > Cc: "Michael Heerdegen" <michael_heerdegen@web.de>, help-gnu-emacs@gnu.org
> > Subject: Re: Removing line and column number settings from some buffers
> >
> > Can somebody help me make a key binding that cycles
> > through a function (appt-mode-line n) where 'n' can
> > be 1, 2 or 3.
> >
> > Thank you
> > Daniela
> >
> > > Sent: Friday, December 04, 2020 at 3:10 AM
> > > From: daniela-spit@gmx.it
> > > To: "Christopher Dimech" <dimech@gmx.com>
> > > Cc: "Michael Heerdegen" <michael_heerdegen@web.de>, help-gnu-emacs@gnu.org
> > > Subject: Re: Removing line and column number settings from some buffers
> > >
> > >
> > >
> > > > Sent: Friday, December 04, 2020 at 2:33 AM
> > > > From: "Christopher Dimech" <dimech@gmx.com>
> > > > To: "Michael Heerdegen" <michael_heerdegen@web.de>, daniela-spit@gmx.it
> > > > Cc: help-gnu-emacs@gnu.org
> > > > Subject: Re: Removing line and column number settings from some buffers
> > > >
> > > >
> > > >
> > > >
> > > > > Sent: Friday, December 04, 2020 at 2:16 AM
> > > > > From: "Michael Heerdegen" <michael_heerdegen@web.de>
> > > > > To: help-gnu-emacs@gnu.org
> > > > > Subject: Re: Removing line and column number settings from some buffers
> > > > >
> > > > > Christopher Dimech <dimech@gmx.com> writes:
> > > > >
> > > > > > > > > (setq mode-line-format
> > > > > > > > > (list
> > > > > > > > > "%e"
> > > > > > > > > " "
> > > > > > > > > " "
> > > > > > > > > 'mode-line-modes 'mode-line-misc-info
> > > > > > > > > 'mode-line-end-spaces) )
> > > > > > > > >
> > > > > > > > > (force-mode-line-update)
> > > > > >
> > > > > > Have put the code in my init, and the mode line is also not being
> > > > > > updated. Even after firing new Emacs Sessions.
> > > > >
> > > > > This does only modify the mode-line of the buffer that is current when
> > > > > that code is loaded, so this is expected.
> > > >
> > > > I see. Have put it in a file and hit "M-x eval-region". And then the change
> > > > happens.
> > >
> > > At least I say things changing.
> > >
> > > What I want to do is to change the Mode Line, but then revert back to how it
> > > was in that buffer, by continue pressing same keybinding. Can I store the
> > > old setup and then put it back again.
> > >
> > > >
> > > > > Michael.
> > > > >
> > > > >
> > > > >
> > > >
> > > > ---------------------
> > > > Christopher Dimech
> > > > General Administrator - Naiad Informatics - GNU Project (Geocomputation)
> > > > - Geophysical Simulation
> > > > - Geological Subsurface Mapping
> > > > - Disaster Preparedness and Mitigation
> > > > - Natural Resource Exploration and Production
> > > > - Free Software Advocacy
> > > >
> > > >
> > >
> >
>
^ permalink raw reply [flat|nested] 45+ messages in thread* Re: Removing line and column number settings from some buffers
2020-12-04 5:58 ` daniela-spit
@ 2020-12-04 7:19 ` Jean Louis
2020-12-05 4:42 ` daniela-spit
0 siblings, 1 reply; 45+ messages in thread
From: Jean Louis @ 2020-12-04 7:19 UTC (permalink / raw)
To: daniela-spit; +Cc: Michael Heerdegen, Christopher Dimech, help-gnu-emacs
(make-local-variable 'anything-here) will work, but toggle-mode-line
is function and not variable
* daniela-spit@gmx.it <daniela-spit@gmx.it> [2020-12-04 08:58]:
> There is something wrong in resetting the mode line, after trying to save the
> original value. Michael has said that code only works if evaluated in a buffer.
>
> Would there be some other call to use?
>
> (defun toggle-mode-line (n)
> "Changes Mode Line Information."
>
> (make-local-variable 'mode-line-position)
> (make-local-variable 'line-number-mode)
> (make-local-variable 'column-number-mode)
> (make-local-variable 'mode-line-modes)
> (make-local-variable 'mode-line-format)
> (make-local-variable 'original-mode-line-format)
> (make-local-variable 'mode-line-format)
>
> (cond
> ((= n 1)
> ;; Store current value of mode-line-format
> (setq original-mode-line-format mode-line-format)
>
> (setq mode-line-position nil)
> (setq line-number-mode nil)
> (setq column-number-mode nil)
> (setq mode-line-modes nil)
>
> ;; Set format and discard System Load Averages indicator
> (setq display-time-format "W%W %H:%M")
> (make-local-variable 'display-time-default-load-average)
> (setq display-time-default-load-average nil)
>
> (display-time))
>
> ((= n 2)
> (setq display-time-format "W%W %H:%M %a %b %d %Y")
> (display-time))
>
> ((= n 3)
> ;; Put original mode-line-format
> (setq mode-line-position t)
> (setq line-number-mode t)
> (setq column-number-mode t)
> (setq mode-line-modes t)
>
> (setq mode-line-format original-mode-line-format)
> (force-mode-line-update)) ))
>
> (make-local-variable 'toggle-mode-line)
^ permalink raw reply [flat|nested] 45+ messages in thread
* Re: Removing line and column number settings from some buffers
2020-12-04 7:19 ` Jean Louis
@ 2020-12-05 4:42 ` daniela-spit
2020-12-05 21:32 ` Michael Heerdegen
0 siblings, 1 reply; 45+ messages in thread
From: daniela-spit @ 2020-12-05 4:42 UTC (permalink / raw)
To: Jean Louis; +Cc: Michael Heerdegen, help-gnu-emacs
Have tried using your suggestion. The file is being created
with the correct information. However, when the code gets to
option 3, the Mode Line is not being reverted to its original
state.
Daniela
(defun change-mode-line (n)
"Toggles Mode Line Information."
(make-local-variable 'mode-line-position)
(make-local-variable 'line-number-mode)
(make-local-variable 'column-number-mode)
(make-local-variable 'mode-line-modes)
(make-local-variable 'mode-line-format)
(make-local-variable 'original-mode-line-format)
(make-local-variable 'mode-line-format)
(cond
((= n 1)
;; Store current value of mode-line-format
(setq original-mode-line-format mode-line-format)
(data-to-file
mode-line-format "~/.emacs.d/mode-line-frmt.el")
(setq mode-line-position nil)
(setq line-number-mode nil)
(setq column-number-mode nil)
(setq mode-line-modes nil)
;; Set format and discard System Load Averages indicator
(setq display-time-format "W%W %H:%M")
(make-local-variable 'display-time-default-load-average)
(setq display-time-default-load-average nil)
(display-time))
((= n 2)
(setq display-time-format "W%W %H:%M %a %b %d %Y")
(display-time))
((= n 3)
;; Put original mode-line-format
(message "Doing 3")
;(setq mode-line-position t)
;(setq line-number-mode t)
;(setq column-number-mode t)
;(setq mode-line-modes t)
;(make-local-variable 'display-time-default-load-average)
;(setq display-time-default-load-average t)
;(display-time)
(setq mode-line-format
(data-from-file "~/.emacs.d/mode-line-frmt.el"))
)))
(defun time-frmt-cycle ()
(interactive)
(unless (get 'time-frmt-cycle 'state)
(put 'time-frmt-cycle 'state 1))
(setq n (get 'time-frmt-cycle 'state))
(when (= n 1)
(change-mode-line 1)
(put 'time-frmt-cycle 'state 2))
(when (= n 2)
(change-mode-line 2)
(put 'time-frmt-cycle 'state 3))
(when (= n 3)
(message "3")
(change-mode-line 3)
(put 'time-frmt-cycle 'state 1)) )
(global-set-key (kbd "H-i H-i") #'time-frmt-cycle)
> Sent: Friday, December 04, 2020 at 8:19 AM
> From: "Jean Louis" <bugs@gnu.support>
> To: daniela-spit@gmx.it
> Cc: "Christopher Dimech" <dimech@gmx.com>, "Michael Heerdegen" <michael_heerdegen@web.de>, help-gnu-emacs@gnu.org
> Subject: Re: Removing line and column number settings from some buffers
>
> (make-local-variable 'anything-here) will work, but toggle-mode-line
> is function and not variable
>
> * daniela-spit@gmx.it <daniela-spit@gmx.it> [2020-12-04 08:58]:
> > There is something wrong in resetting the mode line, after trying to save the
> > original value. Michael has said that code only works if evaluated in a buffer.
> >
> > Would there be some other call to use?
> >
> > (defun toggle-mode-line (n)
> > "Changes Mode Line Information."
> >
> > (make-local-variable 'mode-line-position)
> > (make-local-variable 'line-number-mode)
> > (make-local-variable 'column-number-mode)
> > (make-local-variable 'mode-line-modes)
> > (make-local-variable 'mode-line-format)
> > (make-local-variable 'original-mode-line-format)
> > (make-local-variable 'mode-line-format)
> >
> > (cond
> > ((= n 1)
> > ;; Store current value of mode-line-format
> > (setq original-mode-line-format mode-line-format)
> >
> > (setq mode-line-position nil)
> > (setq line-number-mode nil)
> > (setq column-number-mode nil)
> > (setq mode-line-modes nil)
> >
> > ;; Set format and discard System Load Averages indicator
> > (setq display-time-format "W%W %H:%M")
> > (make-local-variable 'display-time-default-load-average)
> > (setq display-time-default-load-average nil)
> >
> > (display-time))
> >
> > ((= n 2)
> > (setq display-time-format "W%W %H:%M %a %b %d %Y")
> > (display-time))
> >
> > ((= n 3)
> > ;; Put original mode-line-format
> > (setq mode-line-position t)
> > (setq line-number-mode t)
> > (setq column-number-mode t)
> > (setq mode-line-modes t)
> >
> > (setq mode-line-format original-mode-line-format)
> > (force-mode-line-update)) ))
> >
> > (make-local-variable 'toggle-mode-line)
>
^ permalink raw reply [flat|nested] 45+ messages in thread* Re: Removing line and column number settings from some buffers
2020-12-05 4:42 ` daniela-spit
@ 2020-12-05 21:32 ` Michael Heerdegen
0 siblings, 0 replies; 45+ messages in thread
From: Michael Heerdegen @ 2020-12-05 21:32 UTC (permalink / raw)
To: help-gnu-emacs
daniela-spit@gmx.it writes:
> Have tried using your suggestion. The file is being created
> with the correct information. However, when the code gets to
> option 3, the Mode Line is not being reverted to its original
> state.
You nowhere change the contents of `mode-line-format'. You only change
the contents of variables referenced by `mode-line-format'. So what you
restore is the current unchanged value of `mode-line-format'. Please
have a look at the values of the variables.
Michael.
^ permalink raw reply [flat|nested] 45+ messages in thread
* Re: Removing line and column number settings from some buffers
2020-12-04 4:36 ` daniela-spit
2020-12-04 5:58 ` daniela-spit
@ 2020-12-05 21:35 ` Michael Heerdegen
2020-12-05 22:54 ` daniela-spit
1 sibling, 1 reply; 45+ messages in thread
From: Michael Heerdegen @ 2020-12-05 21:35 UTC (permalink / raw)
To: daniela-spit; +Cc: Christopher Dimech, help-gnu-emacs
daniela-spit@gmx.it writes:
> One problem is how to store (get 'time-frmt-cycle 'state) in a
> variable.
If you save the state already in the state property of `time-frmt-cycle'
you don't need a variable for storing. What specifically is your
question?
Michael.
^ permalink raw reply [flat|nested] 45+ messages in thread
* Re: Removing line and column number settings from some buffers
2020-12-05 21:35 ` Michael Heerdegen
@ 2020-12-05 22:54 ` daniela-spit
2020-12-05 22:57 ` Drew Adams
0 siblings, 1 reply; 45+ messages in thread
From: daniela-spit @ 2020-12-05 22:54 UTC (permalink / raw)
To: Michael Heerdegen; +Cc: help-gnu-emacs
Look at this code. Correct, you don't need a variable for storing,
but what is happening with n in the following code.
The byte compiler complains about the variable n
(defun auto-fill-cycle ()
"Cycles Auto Fill. Automatically breaks lines that get beyond
variable fill-column."
(interactive)
;; ----- body of let -----
;; (unless (get 'auto-fill-cycle 'state)
;; (put 'auto-fill-cycle 'state 1))
(setq-local n (get 'auto-fill-cycle 'state))
;; (when (= n 1)
(when (or (not n) (= n 1))
(message "Auto Fill Comments Only")
(set (make-local-variable 'comment-auto-fill-only-comments) t)
(auto-fill-mode 1)
(put 'auto-fill-cycle 'state 2))
(when (= n 2)
(message "Auto Fill Whole Buffer")
(set (make-local-variable 'comment-auto-fill-only-comments) nil)
(put 'auto-fill-cycle 'state 3))
(when (= n 3)
(message "Disable Auto Fill")
(auto-fill-mode 0)
(put 'auto-fill-cycle 'state 1)) )
(global-set-key (kbd "H-a") #'auto-fill-cycle)
> Sent: Saturday, December 05, 2020 at 10:35 PM
> From: "Michael Heerdegen" <michael_heerdegen@web.de>
> To: daniela-spit@gmx.it
> Cc: "Christopher Dimech" <dimech@gmx.com>, help-gnu-emacs@gnu.org
> Subject: Re: Removing line and column number settings from some buffers
>
> daniela-spit@gmx.it writes:
>
> > One problem is how to store (get 'time-frmt-cycle 'state) in a
> > variable.
>
> If you save the state already in the state property of `time-frmt-cycle'
> you don't need a variable for storing. What specifically is your
> question?
>
> Michael.
>
^ permalink raw reply [flat|nested] 45+ messages in thread* RE: Removing line and column number settings from some buffers
2020-12-05 22:54 ` daniela-spit
@ 2020-12-05 22:57 ` Drew Adams
2020-12-05 23:05 ` daniela-spit
0 siblings, 1 reply; 45+ messages in thread
From: Drew Adams @ 2020-12-05 22:57 UTC (permalink / raw)
To: daniela-spit, Michael Heerdegen; +Cc: help-gnu-emacs
> Look at this code. Correct, you don't need a variable for storing,
> but what is happening with n in the following code.
>
> The byte compiler complains about the variable n
>
> (defun auto-fill-cycle ()
> (interactive)
> (setq-local n (get 'auto-fill-cycle 'state))...)
`n' is a free variable. Add a `defvar' for it, if you
don't want Emacs to tell you about that.
^ permalink raw reply [flat|nested] 45+ messages in thread
* Re: RE: Removing line and column number settings from some buffers
2020-12-05 22:57 ` Drew Adams
@ 2020-12-05 23:05 ` daniela-spit
2020-12-05 23:37 ` Drew Adams
0 siblings, 1 reply; 45+ messages in thread
From: daniela-spit @ 2020-12-05 23:05 UTC (permalink / raw)
To: Drew Adams; +Cc: Michael Heerdegen, help-gnu-emacs
> Sent: Saturday, December 05, 2020 at 11:57 PM
> From: "Drew Adams" <drew.adams@oracle.com>
> To: daniela-spit@gmx.it, "Michael Heerdegen" <michael_heerdegen@web.de>
> Cc: help-gnu-emacs@gnu.org
> Subject: RE: Removing line and column number settings from some buffers
>
> > Look at this code. Correct, you don't need a variable for storing,
> > but what is happening with n in the following code.
> >
> > The byte compiler complains about the variable n
> >
> > (defun auto-fill-cycle ()
> > (interactive)
> > (setq-local n (get 'auto-fill-cycle 'state))...)
>
> `n' is a free variable. Add a `defvar' for it, if you
> don't want Emacs to tell you about that.
Would that be a valid approach or is it just to stop emacs complaining?
Was considering to use
(let (n)
...
^ permalink raw reply [flat|nested] 45+ messages in thread
* RE: RE: Removing line and column number settings from some buffers
2020-12-05 23:05 ` daniela-spit
@ 2020-12-05 23:37 ` Drew Adams
2020-12-05 23:53 ` daniela-spit
0 siblings, 1 reply; 45+ messages in thread
From: Drew Adams @ 2020-12-05 23:37 UTC (permalink / raw)
To: daniela-spit; +Cc: Michael Heerdegen, help-gnu-emacs
> > > Look at this code. Correct, you don't need a variable for storing,
> > > but what is happening with n in the following code.
> > >
> > > The byte compiler complains about the variable n
> > >
> > > (defun auto-fill-cycle ()
> > > (interactive)
> > > (setq-local n (get 'auto-fill-cycle 'state))...)
> >
> > `n' is a free variable. Add a `defvar' for it, if you
> > don't want Emacs to tell you about that.
>
> Would that be a valid approach or is it just to stop emacs complaining?
Valid. The variable is free in your function.
> Was considering to use (let (n) ...
Where are you going to put your `let'?
You want the value to persist beyond an invocation of
your function, right?
^ permalink raw reply [flat|nested] 45+ messages in thread
* Re: RE: RE: Removing line and column number settings from some buffers
2020-12-05 23:37 ` Drew Adams
@ 2020-12-05 23:53 ` daniela-spit
0 siblings, 0 replies; 45+ messages in thread
From: daniela-spit @ 2020-12-05 23:53 UTC (permalink / raw)
To: Drew Adams; +Cc: Michael Heerdegen, help-gnu-emacs
> Sent: Sunday, December 06, 2020 at 12:37 AM
> From: "Drew Adams" <drew.adams@oracle.com>
> To: daniela-spit@gmx.it
> Cc: "Michael Heerdegen" <michael_heerdegen@web.de>, help-gnu-emacs@gnu.org
> Subject: RE: RE: Removing line and column number settings from some buffers
>
> > > > Look at this code. Correct, you don't need a variable for storing,
> > > > but what is happening with n in the following code.
> > > >
> > > > The byte compiler complains about the variable n
> > > >
> > > > (defun auto-fill-cycle ()
> > > > (interactive)
> > > > (setq-local n (get 'auto-fill-cycle 'state))...)
> > >
> > > `n' is a free variable. Add a `defvar' for it, if you
> > > don't want Emacs to tell you about that.
> >
> > Would that be a valid approach or is it just to stop emacs complaining?
>
> Valid. The variable is free in your function.
>
> > Was considering to use (let (n) ...
>
> Where are you going to put your `let'?
>
> You want the value to persist beyond an invocation of
> your function, right?
auto-fill would be buffer local and the function property 'state' in
being changed. Additionally, it is only used so not to use the longer
(get 'auto-fill-cycle 'state) for the when condition. Why would you want
'n' to persist beyond an invocation of auto-fill-cycle? I don't see a reason
to do that. Can do '(let (n)' and close it after setting the state to 1 when
the function gets cycled to state 3.
With the use of 'let' would I then use the following?
(setq n (get 'gungadin-auto-fill-cycle 'state))
>
^ permalink raw reply [flat|nested] 45+ messages in thread
* Re: Removing line and column number settings from some buffers
2020-12-04 4:16 ` daniela-spit
2020-12-04 4:36 ` daniela-spit
@ 2020-12-04 7:40 ` Jean Louis
1 sibling, 0 replies; 45+ messages in thread
From: Jean Louis @ 2020-12-04 7:40 UTC (permalink / raw)
To: daniela-spit; +Cc: Michael Heerdegen, Christopher Dimech, help-gnu-emacs
* daniela-spit@gmx.it <daniela-spit@gmx.it> [2020-12-04 07:17]:
> Can somebody help me make a key binding that cycles
> through a function (appt-mode-line n) where 'n' can
> be 1, 2 or 3.
Step one:
(defvar my-mode-lines nil "To store mode lines here")
Step two, push various configurations there. Each time you modify
something, push it.
(push mode-line-format my-mode-lines)
You could then store the list my-mode-lines into file or into
buffer for later reuse. That could be easier than writing all
codes.
(defun my-next-mode-line (n)
(setq mode-line-format (elt my-mode-lines n))
(force-mode-line-update t))
Access with:
(my-next-mode-line 0)
It works on my side.
^ permalink raw reply [flat|nested] 45+ messages in thread
* Re: Removing line and column number settings from some buffers
2020-12-04 2:10 ` daniela-spit
` (2 preceding siblings ...)
2020-12-04 4:16 ` daniela-spit
@ 2020-12-04 6:07 ` Jean Louis
3 siblings, 0 replies; 45+ messages in thread
From: Jean Louis @ 2020-12-04 6:07 UTC (permalink / raw)
To: daniela-spit; +Cc: Michael Heerdegen, Christopher Dimech, help-gnu-emacs
* daniela-spit@gmx.it <daniela-spit@gmx.it> [2020-12-04 05:10]:
> What I want to do is to change the Mode Line, but then revert back to how it
> was in that buffer, by continue pressing same keybinding. Can I store the
> old setup and then put it back again.
As each setting is variable one can store it in other variable or into
file, and get it back later.
(defun string-to-file-force (string file)
"Prints string into file, matters not if file exists. Returns FILE as file name."
(with-temp-file file
(insert string))
file)
(defun file-to-string (file)
"File to string function"
(with-temp-buffer
(insert-file-contents file)
(buffer-string)))
(defun data-to-file (data file)
"PRIN1 Emacs Lisp DATA to FILE"
(string-to-file-force (prin1-to-string data) file))
(defun data-from-file (file)
"Reads and returns Emacs Lisp data from FILE"
(car
(read-from-string
(file-to-string file))))
With those I am storing data into files and reading from files. It can
be just any complex Emacs Lisp data structure like hashes, it can be
lists, variables, just anything.
(setq my-hash (data-from-file "~/tmp/hash"))
(data-to-file mode-line-format "~/.emacs.d/modeline-saved.el")
saves `mode-line-format' into: "~/.emacs.d/modeline-saved.el" with
data looking like this:
("%e" mode-line-front-space mode-line-mule-info mode-line-client mode-line-modified mode-line-remote mode-line-frame-identification mode-line-buffer-identification " " mode-line-position (vc-mode vc-mode) " " mode-line-modes mode-line-misc-info mode-line-end-spaces)
and
(setq mode-line-format (data-from-file "~/.emacs.d/modeline-saved.el"))
loads the data from file back into `mode-line-format'
Jean
^ permalink raw reply [flat|nested] 45+ messages in thread