Re: prog-mode-p?

[Yuan Fu]

> On Nov 23, 2022, at 8:08 PM, T.V Raman <raman@google.com> wrote:
> 
> At present, one can look up the "parent" of a derived mode  via the
> symbol's property list as in:
> 
> (get 'emacs-lisp-mode 'derived-mode-parent )
> and thus ascend the parent chain -- is there a shortcut to checking if
> a mode derives from say 'prog-mode (my current use case)
> or in general check if mode x has mode y as a parent in its derivation chain?

IIIUC you can use derived-mode-p.

Yuan