Re: Functions which are mode dependent

[Heime <heimeborgia@protonmail.com>]

On Friday, August 23rd, 2024 at 10:16 AM, Heime <heimeborgia@protonmail.com> wrote:

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>
> On Friday, August 23rd, 2024 at 10:07 AM, Heime heimeborgia@protonmail.com wrote:
> 
> > On Friday, August 23rd, 2024 at 6:58 AM, Yuri Khan yuri.v.khan@gmail.com wrote:
> > 
> > > On Mon, 19 Aug 2024 at 04:15, Heime heimeborgia@protonmail.com wrote:
> > > 
> > > > I need some help understanding how to automatically enable some functionality
> > > > when loading a file with some major mode.
> > > 
> > > The major mode you’re customizing has a hook. As an end user, you add
> > > your own function to that hook, and enable the functionality there.
> > > 
> > > (As a package developer, you’d make your functionality use some
> > > buffer-local variables. Your users would add their own functions to
> > > mode hooks where they would set their own variable values and then
> > > call your function or enable your minor mode.)

Something as below ?

(defvar tema-expr-elisp
  '(("Functions" "^\\s-*(defun\\s-+\\(\\_<.*?\\_>\\)" 1)))

(defun tema-imenu-expr-elisp ()
  "Set up a custom imenu expression for the current buffer."
  (setq-local imenu-generic-expression tema-expr-elisp))

;;;###autoload
(define-minor-mode tema-minor-mode
  "DESC."
  :init-value nil
  :lighter " Tema"

  (if tema-minor-mode
      (progn
        (add-hook 'sh-mode-hook #'tema-imenu-expr-sh)
        (add-hook 'emacs-lisp-mode-hook #'tema-imenu-expr-elisp))
    (remove-hook 'sh-mode-hook #'tema-imenu-expr-sh)
    (remove-hook 'emacs-lisp-mode-hook #'tema-imenu-expr-elisp)))

And adding more variables and functions for other major modes.

How can I handle derived modes ?