Re: Improving info-look.el for (c) -was- Re: [ELPA] New package c-intro-and-ref -- was Re: Proposal: Include C Manual from RMS in Emacs git, and/or release

[Eli Zaretskii]

> From: Jeremy Bryant <jb@jeremybryant.net>
> Cc: rms@gnu.org,  emacs-devel@gnu.org,  philipk@posteo.net,
>   monnier@iro.umontreal.ca
> Date: Sat, 07 Dec 2024 13:30:10 +0000
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > It's okay to extend info-look.el to use this manual (and perhaps also
> > the sibling GNU C manual?), but please note that we do NOT provide the
> > glibc Info manual on ELPA, although it is referenced by info-look.el
> > (and I personally have that manual installed on my system, even though
> > my main development machine doesn't use glibc).
> >
> 
> Okay, on this particular change, after studying info-look.el, it is not
> clear to me how info-look resolves multiple manuals, in order to make it
> work with both (libc), (c) and other manuals on the same buffer.

See how this is set up for emacs-lisp-mode: AFAIU, you just need to
specify a list of alternative index nodes, and they will be tried
until a match is found.  Note that the setup for c-mode already
mentions more than one manual.

> Should we add another info-lookup-maybe-add-help, or amend the existing one?

Amending the existing one is TRT, IMO.