Usage of string-match-p

[twmr]

In https://github.com/wyuenho/emacs-pet/blob/main/pet.el#L221 you're using string-match-p for the config file extensions. This doesn't work for me, because string-match-p returns 0 in my case. I would simply use

(or (equal "yaml" ext) 
     (equal "yml" ext)
     (eq 'yaml-mode mode))

or maybe you have a better idea.

(string-match-p "ya?ml" "yaml")
0

(string-match-p "ya?ml" "yml")
0

[wyuenho]

Why doesn't it work for you?

[twmr]

Good question.

What does it return for you?

(string-match-p "ya?ml" "yaml")
(string-match-p "ya?ml" "yml")

BTW I'm on emacs-29

[wyuenho]

0, which is truthy in elisp.

[twmr]

Ok, maybe there was a misunderstanding then. I always thought that sth is fishy because yaml-p is 0.

[twmr]

Thx for the tip about 0 being t in elisp! This ticket can be closed.