Re: New buffer not showing up in Emacs Buffers Menubar

[Stephen Berman <stephen.berman@gmx.net>]

On Tue, 24 Sep 2024 10:00:06 +0000 Heime <heimeborgia@protonmail.com> wrote:

> Sent with Proton Mail secure email.
>
> On Tuesday, September 24th, 2024 at 8:34 PM, Stephen Berman
> <stephen.berman@gmx.net> wrote:
>
>> On Tue, 24 Sep 2024 08:19:08 +0000 Heime heimeborgia@protonmail.com wrote:
>> 
>> > Sent with Proton Mail secure email.
>> > 
>> > On Tuesday, September 24th, 2024 at 7:41 PM, Stephen Berman
>> > stephen.berman@gmx.net wrote:
>> > 
>> > > On Mon, 23 Sep 2024 22:25:17 +0000 Heime heimeborgia@protonmail.com wrote:
>> > > 
>> > > > Why do I need to call (switch-to-buffer dbuffer) to see the buffer made ?
>> > > > 
>> > > > Without it I never see the BFRN buffer in the Emacs Buffers Menubar.
>> > > > 
>> > > > (defun print-alist (alist &optional bfrn)
>> > > > "Print Associateed List ALIST to the buffer BFRN."
>> > > > 
>> > > > (let* ( (bfname (or bfrn "ALIST"))
>> > > > (dbuffer (get-buffer-create (concat "𒆳 " bfname))) )
>> > > > 
>> > > > (with-current-buffer dbuffer
>> > > > (face-remap-add-relative 'default :background "blue")
>> > > > 
>> > > > (insert "\n ALIST \n\n")
>> > > > 
>> > > > (dolist (entry alist)
>> > > > 
>> > > > (let* ( (key (car entry) )
>> > > > (value (cdr entry) )
>> > > > (start (point)) )
>> > > > 
>> > > > ;; Insert key
>> > > > (insert (format " ━ %-8s" key))
>> > > > 
>> > > > ;; Colourise key
>> > > > (add-text-properties start (point)
>> > > > `(face (:foreground "green")))
>> > > > 
>> > > > ;; Insert associated value
>> > > > (insert (format "\n %s\n" value)) )) )
>> > > > 
>> > > > ;; Finally, display the buffer
>> > > > (switch-to-buffer dbuffer) ))
>> > > 
>> > > When I comment out `(switch-to-buffer dbuffer)' and evaluate the defun
>> > > in emacs -Q, I see "𒆳 ALIST" in the Buffers menu.
>> > > 
>> > > Steve Berman
>> > 
>> > I am still experiencing the problem though.
>> 
>> 
>> Also when you run emacs -Q?
>> 
>> > Is there possibility of conflicts with other buffers in some situations ?
>> 
>> I don't know what you mean here.
>
> That some buffers fail to display unless specifically instructed to do so.
>
>> > Is there a limit to the number of buffers
>> > that can be displayed in the Emacs Menubar ?
>> 
>> 
>> Yes, the default is 15; see user option buffers-menu-max-size.
>
> Then this is something that I would have to look into as I make
> a lot of buffers for test.
>
> Is there always a requirement to instruct pop-to-buffer, view-buffer, 
> display-buffer, switch-to-buffer and display-like commands so that a 
> new buffer gets shown.

If you mean the buffer names being displayed in the Buffers menu, no, that
should be automatic for the most recent buffers up to buffers-menu-max-size.

Steve Berman