From: Phil Sainty <psainty@orcon.net.nz>
To: Christopher Dimech <dimech@gmx.com>
Cc: 57481@debbugs.gnu.org
Subject: bug#57481: elisp code utilising derived-mode-parent
Date: Tue, 30 Aug 2022 18:37:22 +1200 [thread overview]
Message-ID: <fbf558ae2cfa79fb8765a55f06c50d67@webmail.orcon.net.nz> (raw)
In-Reply-To: <trinity-e5874991-7b1d-4b00-9854-aec591619bf5-1661838279808@3c-app-mailcom-bs10>
You can derive (as it were) such a function from the code of
`provided-mode-derived-p' like so:
(defun derived-mode-chain (mode)
"Return the chain of derived modes for MODE."
(let (chain)
(while (progn (push mode chain)
(let* ((parent (get mode 'derived-mode-parent))
(parentfn (symbol-function parent)))
(setq mode (if (and parentfn (symbolp parentfn))
parentfn
parent)))))
(nreverse chain)))
(derived-mode-chain 'latex-mode)
=> (latex-mode tex-mode text-mode)
next prev parent reply other threads:[~2022-08-30 6:37 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-30 5:44 bug#57481: elisp code utilising derived-mode-parent Christopher Dimech
2022-08-30 6:37 ` Phil Sainty [this message]
2022-08-30 11:33 ` Christopher Dimech
2022-08-30 12:02 ` Phil Sainty
2022-08-30 12:08 ` Christopher Dimech
2022-08-30 12:38 ` Phil Sainty
2022-08-30 12:46 ` Christopher Dimech
2022-08-30 13:02 ` Eli Zaretskii
2022-08-30 13:16 ` Christopher Dimech
2022-08-30 22:07 ` Phil Sainty
2022-08-31 6:24 ` Christopher Dimech
2022-08-31 11:31 ` Christopher Dimech
2022-08-30 10:36 ` Lars Ingebrigtsen
2022-08-30 11:48 ` Christopher Dimech
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