Re: [PATCH] gettext documentation: make key bindings for po-mode up-to-date

[Bruno Haible]

Hello Noritada,

> There remain some obsolete key bindings (used in the version 0.10.x
> era) in the po-mode section in the documentation.  Here attach a patch
> to update them.  Could you please check and apply it?

Thank you. I've applied it.

While testing it, I also noticed that although '_' performs an undo action,
the "Undo" item in the "Edit" menu is disabled. This is because Emacs'
menu-bar.el contains this code:

(define-key menu-bar-edit-menu [undo]
  '(menu-item "Undo" undo
              :enable (and (not buffer-read-only)    ; <== HERE
                           (not (eq t buffer-undo-list))
                           (if (eq last-command 'undo)
                               (listp pending-undo-list)
                             (consp buffer-undo-list)))
              :help "Undo last operation"))

and at the marked place the variable buffer-read-only is tested.
In po-mode, however, this variable is always t, and the variable
po-read-only should be tested instead. How could this be implemented?
I'm thinking of fetching this menu-item from the (current-global-map),
then applying a substitution buffer-read-only -> po-read-only, then
stuffing the result into the po-mode-map. But as I'm not familiar with
Emacs Lisp, I cannot find the right Emacs Lisp functions for doing this.

Bruno