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From: Juri Linkov <juri@linkov.net>
Newsgroups: gmane.emacs.devel
Subject: Re: Mapping file types to major modes
Date: Sat, 24 Sep 2022 22:51:25 +0300
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To: Stefan Monnier <monnier@iro.umontreal.ca>
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> So all it takes is to add some "mode remapping" layer to decide which
> major mode to actually use when the "type/mode".

Such layer looks like `mime.types` with e.g.

  #  MIME media types and the extensions that represent them.
  text/x-perl   pl pm
  text/html     html htm shtml
  ...

and `mailcap` with e.g.

  text/html; firefox %s; test=test -n "$DISPLAY"
  text/html; /usr/bin/sensible-browser %s; nametemplate=%s.html
  ...