different mode line info for different major modes?
reddit / emacs

----------------------------------------------------------------------
yekemezek · 2022-04-25 08:51

I want to have column-number-mode turned on only for c-mode and no
other major mode. How would I do this? When I add a hook to c-mode it
changes mode line for every mode

----------------------------------------------------------------------
7890yuiop · 2022-04-25 09:27

Yes.

----------------------------------------------------------------------
a-c-d-w · 2022-04-25 12:09

for some reason unknown to me, column-number-mode is a global minor
mode. however, you can set the *variable* of the same name to nil
locally in your c-mode buffers and it'll work.

    (add-hook 'c-mode-hook (lambda () (setq-local column-number-mode
nil)))

----------------------------------------------------------------------
7890yuiop · 2022-04-25 20:38

For the record, that did seem to have the desired effect of
encouraging the author to actually write a question (as opposed to the
exceptionally vague "subject line and nothing else" that I'd been
replying to).