Re: Adding missing C-x 5 C-j and C-x t C-j commands

[Eli Zaretskii <eliz@gnu.org>]

On May 23, 2022 10:56:47 AM GMT+03:00, Juri Linkov <juri@linkov.net> wrote:
> >> If we miss some of them out because we've since added C-x 5 5,
> >> we are asking the user to keep track of which things under C-x 4 have
> >> bindings under C-x 5 and which don't -- one has to remember that C-x 4
> >> C-j exists but C-x 5 C-j doesn't.
> >
> > I meant: one has to remember that C-x 5 p and C-x 5 d exist but
> > C-x 5 C-j doesn't.
> 
> For new commands that don't have a C-x 4 binding
> it makes sense to use C-x 5 5, but if a binding
> already exists in the C-x 4 keymap, it could be synced
> with the C-x 5 keymap for consistency.  And indeed
> dired-jump-other-frame is missing among existing keys:
> 
> C-x 4 C-f find-file-other-window             C-x 5 C-f find-file-other-frame
> C-x 4 C-j dired-jump-other-window            !!!
> C-x 4 C-o display-buffer                     C-x 5 C-o display-buffer-other-frame
> C-x 4 .   xref-find-definitions-other-window C-x 5 .   xref-find-definitions-other-frame
> C-x 4 0   kill-buffer-and-window             C-x 5 0   delete-frame
> C-x 4 4   other-window-prefix                C-x 5 5   other-frame-prefix
> C-x 4 a   add-change-log-entry-other-window
> C-x 4 b   switch-to-buffer-other-window      C-x 5 b   switch-to-buffer-other-frame
> C-x 4 c   clone-indirect-buffer-other-window C-x 5 c   clone-frame
> C-x 4 d   dired-other-window                 C-x 5 d   dired-other-frame
> C-x 4 f   find-file-other-window             C-x 5 f   find-file-other-frame
> C-x 4 m   compose-mail-other-window          C-x 5 m   compose-mail-other-frame
> C-x 4 p   project-other-window-command       C-x 5 p   project-other-frame-command
> C-x 4 r   find-file-read-only-other-window   C-x 5 r   find-file-read-only-other-frame
> 
> 

I don't think we agreed to have full symmetry between C-x 4 and C-x 5.  I see no special reason for 100% consistency here.  Simple key sequences are at a premium, and we shouldn't usurp them just because we can.

Any user who wants a C-x 5 binding for dired-jump can have such a binding for him or herself.  But why do this by default for everyone?