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From: Juri Linkov <juri@linkov.net>
To: 49731@debbugs.gnu.org
Cc: mardani29@yahoo.es
Subject: bug#49731: 28.0.50; Filter xref results by filename
Date: Sun, 25 Jul 2021 23:43:55 +0300	[thread overview]
Message-ID: <87lf5urv4c.fsf@mail.linkov.net> (raw)
In-Reply-To: <m1pmv6iz4n.fsf@yahoo.es> ("Daniel Martín via \"Bug reports for GNU Emacs, the Swiss army knife of text editors\""'s message of "Sun, 25 Jul 2021 10:19:52 +0200")

> I plan to implement a new feature for xref, but I'd like to get some
> opinions first:
>
> Sometimes an xref backend returns a lot of results spread over several
> files.  This usually happens in huge projects and for certain operations
> like "search references".  To make them more manageable, I propose a new
> command that can filter xref result groups (typically filenames) by a
> regular expression.  A user could filter by "tests/", or something like
> that, to only get results from unit tests.

I have exactly the same problem while using xref on the Emacs source tree:
most of the time I'm not interested in the results found in ChangeLog files,
so I want to ignore all ChangeLog files, and only ChangeLog files.

This problem was solved by enabling outline-minor-mode on the xref output,
then collapsing all ChangeLog entries automatically:

#+begin_src emacs-lisp
(add-hook 'xref-after-update-hook
          (lambda ()
            (setq-local outline-regexp
              (if (eq xref-file-name-display 'abs) "/" "[^ 0-9]"))
            (outline-minor-mode +1)
            (save-excursion
              (goto-char (point-min))
              (while (search-forward "ChangeLog" nil t)
                (outline-cycle)))))
#+end_src

> Right now the only approach I know for this use case is to use Isearch,
> but Isearch searches the entire xref buffer, including xref matches.

You can use isearch-filter-predicate to match only on file names.
There is an example of this feature in dired-isearch-filenames-mode.





  parent reply	other threads:[~2021-07-25 20:43 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <m1pmv6iz4n.fsf.ref@yahoo.es>
2021-07-25  8:19 ` bug#49731: 28.0.50; Filter xref results by filename Daniel Martín via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-07-25  8:32   ` Lars Ingebrigtsen
2021-07-25  8:33     ` Lars Ingebrigtsen
2021-07-26 23:16       ` Dmitry Gutov
2021-07-25  9:10   ` Eli Zaretskii
2021-07-25 14:58     ` Daniel Martín via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-07-25 20:43   ` Juri Linkov [this message]
2021-07-26 11:49     ` Daniel Martín via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-07-26 22:53       ` Juri Linkov
2022-01-16 18:52       ` Juri Linkov
2022-11-21  7:58         ` Juri Linkov
2022-11-23  8:39           ` Juri Linkov
2022-11-23 14:19             ` Dmitry Gutov
2022-11-23 17:50               ` Juri Linkov
2022-11-23 18:08                 ` Dmitry Gutov
2022-11-23 18:20                   ` Juri Linkov
2022-11-23 18:47                     ` Dmitry Gutov
2022-11-24  7:48                       ` Juri Linkov
2022-11-25  7:35                         ` Kévin Le Gouguec
2024-02-13 16:52               ` Juri Linkov
2024-02-14  9:25                 ` Daniel Martín via Bug reports for GNU Emacs, the Swiss army knife of text editors
2024-02-15  7:23                   ` Juri Linkov
2021-07-26 23:28   ` Dmitry Gutov
2021-07-27 17:08     ` Daniel Martín via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-07-27 20:51       ` Juri Linkov
2021-07-27 23:11         ` Dmitry Gutov
2021-07-28  0:08       ` Dmitry Gutov
2021-07-28 16:12         ` Juri Linkov
2021-07-29  2:02           ` Dmitry Gutov
2021-07-29 17:43             ` Juri Linkov
2021-08-02  2:09               ` Dmitry Gutov
2021-08-02 20:58                 ` Juri Linkov
2021-08-06  0:03                   ` Dmitry Gutov
2021-07-31 16:45         ` Daniel Martín via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-07-31 17:06           ` Eli Zaretskii
2022-11-23 18:48       ` Dmitry Gutov

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