Re: Functions which are mode dependent

[Heime]

On Wednesday, August 21st, 2024 at 9:49 AM, Heime <heimeborgia@protonmail.com> 
wrote:

> On Monday, August 19th, 2024 at 9:14 AM, Heime heimeborgia@protonmail.com 
> wrote:
> 
> > I need some help understanding how to automatically enable some 
> > functionality
> > when loading a file with some major mode.
> > 
> > For instance I have a function that sets
> > 
> > (defun expr-elisp ()
> > 
> > (setq imenu-generic-expression
> > `( ("defun" ,(concat "^\\s-*"
> > "(\\(defun\\|define-minor-mode\\)\\s-+"
> > "\\(\\(\\sw\\|\\s_\\)+\\)") 2) )) )
> > 
> > (defun expr-selector ()
> > 
> > (cond
> > ((eq major-mode 'emacs-lisp-mode) (expr-elisp))
> > (t (expr-generic)) ))
> > 
> > I have put the code above in a minor mode.
> > 
> > ;;;###autoload
> > (define-minor-mode tema-minor-mode
> > 
> > (if tema-minor-mode
> > (expr-selector)
> > (message "Tema Deactivated")))
> > 
> > with hooks to load the minor mode automatically for specific major modes.
> > 
> > (add-hook emacs-lisp-mode-hook #'tema-minor-mode)
> 
> 
> My confusion is whether after making the minor-mode hooked to emacs-lisp-mode,
> should I also make a hook to the function as well ?
> 
> That is
> 
> (add-hook emacs-lisp-mode-hook #'expr-selector)
> 
> Is this check the correct way to apply the correct expr-elisp
> when emacs-lisp-mode is activated when I load an elisp file ?
> 
> (eq major-mode 'emacs-lisp-mode) (expr-elisp)

Are there any minor-modes that I can study that do a similar thing ?