For example, let’s say I were to change backward-delete-char-untabify-method for prog-mode buffers. Naively, I’d write something like,

(add-hook 'prog-mode-hook (lambda ()
                       (setq-local backward-delete-char-untabify-method 'hungry)))

but the documentation recommends against using lambdas in add-hook calls (which makes sense). I can, of course, just make a named function instead of a lambda and pass that to add-hooks. But, rather than do that, is there any other option for setting variables automatically for modes besides a hook like this?

Also, as a bonus question, if I wanted to also do something like enable show-paren-mode for all prog-mode buffers, which of the following do you consider “better” (assume that this is not something that is likely to change frequently):

;; option 1
(defun my-prog-mode-settings ()
  (setq-local backward-delete-char-untabify-method 'hungry))

(add-hook 'prog-mode-hook #'my-prog-mode-settings)
(add-hook 'prog-mode-hook #'show-paren-mode)

;; option 2
(defun my-prog-mode-settings ()
  (setq-local backward-delete-char-untabify-method 'hungry)
  (show-paren-mode))

(add-hook 'prog-mode-hook #'my-prog-mode-settings)

Obviously, I realize that it’s not really important, but I feel like bike-shedding this morning.

  • 0lMon@alien.topBEnglish
    1·
    10 months ago

    Hej Hej,

    Or you could just write the defun inside the add-hook

    (add-hook 'org-mode-hook (defun silly-hook-defun () (message "it works)))

    This should allow to remove later the hook if you want.

    Cheers!