Re: Search multiple Info-buffers at once with Info-occur function

[Eli Zaretskii]

> From: dalanicolai <dalanicolai@gmail.com>
> Date: Sun, 23 May 2021 10:39:19 +0200
> Cc: emacs-devel@gnu.org
> 
> - as far as I know info-apropos can only scan ALL manuals, which can take very
> long time to finish. (8.3 minutes !!! on my Spacemacs configuration. I used
> [the macro posted here]
> (https://stackoverflow.com/questions/23622296/emacs-timing-execution-of-function-calls-in-emacs-lisp)
> to time it. I would vote for adding that macro to Emacs b.t.w., if there is 
> not
> some hidden alternative command already. It would be great to make use of some
> indexing program like gnome-tracker/recoll for this, but that is a little far
> fetched. We can already use such programs outside (and inside) of Emacs.)
> 
> - Info-occur lets you quickly jump through/preview the matches (it could also
> present its results in helm/ivy/selectrum etc.)
> 
> - Info-occur lets you narrow down on context with additional terms (for 
> example handy to
> find back something you remember to have read somewhere)
> 
> So I think the Info-apropos command is not only a quite nice
> alternative/addition to info-apropos but also to the current 'default'
> Info-search functionality. (But having info-apropos makes having Info-occur
> slightly less valuable indeed...)

Perhaps we could extend info-apropos with optional features that would
make it equivalent to what you wrote?  For example, there could be an
option to tell info-apropos which manuals to scan.