>>>>> Dirk Eddelbuettel via ESS-help
>>>>> on Sat, 7 Feb 2026 10:46:24 -0600 writes:
> On 7 February 2026 at 17:13, LaurentEss via ESS-help wrote:
> | Ok, thank you for this information.
> |
> | I must have a problem with my configuration but I feel that I will have
> | trouble finding where my problem comes from.
> Three+ decades emacs user here who also still struggles comprehending a
> 'built over 30+ years' "superfund site" of his own ~/.emacs ... but I
added
> these lines a while back, and it seems to do the trick (thanks to the
code in
> ess and poly* modes):
> ;;; MARKDOWN
> (add-to-list 'auto-mode-alist '("\\.md" . poly-markdown-mode))
> ;;; R modes
> (add-to-list 'auto-mode-alist '("\\.Snw" . poly-noweb+r-mode))
> (add-to-list 'auto-mode-alist '("\\.Rnw" . poly-noweb+r-mode))
> (add-to-list 'auto-mode-alist '("\\.Rmd" . poly-markdown+r-mode))
Thank you, Dirk.
I wonder why / if the above is still needed, as you do mention
the polymode packages poly-* and of course have and use
poly-R , no? It already has such definitions, see
https://github.com/polymode/poly-R/blob/master/poly-R.el#L736
and so I do wonder ...
Martin
> I edit mixed use files all the time as Rmd with code snippets, even if I
> often just rely on the mixed-mode highlighting. But works in output and
> during editing. Otherwise mostly defaults for both ess and poly-* (modulo
> some small overrides I had for years).
> Dirk
> --
> dirk.eddelbuettel.com | @eddelbuettel | [email protected]
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