bug#49731: 28.0.50; Filter xref results by filename

[Dmitry Gutov]

On 23/11/22 20:20, Juri Linkov wrote:
> Ah, now I see.  This is easy as well, for example,
> this is what I use for the Emacs source repo:
>
> #+begin_src emacs-lisp
> (add-hook 'xref-after-update-hook
>            (lambda ()
>              (setq-local outline-default-state 1
>                          outline-default-rules
>                          '((match-regexp . "ChangeLog\\|test/manual/etags")))
>              (outline-minor-mode +1)))
> #+end_src
>
> where "ChangeLog" and "test/manual/etags" are not interesting groups.

Makes sense.

But IME the files you currently want to filter out depend on your 
current activity: sometimes you want to show the tests, and sometimes 
not. Sometimes you want to see the tests only.

So it might be generally useful to have an interactive command to filter 
out whatever one might prefer. If you agree, of course.