From: Juri Linkov <juri@jurta.org>
To: Juliusz Chroboczek <jch@pps.univ-paris-diderot.fr>
Cc: 19004@debbugs.gnu.org
Subject: bug#19004: 24.4; Please provide a non-regexp interface to occur
Date: Sun, 09 Nov 2014 22:49:50 +0200 [thread overview]
Message-ID: <87tx28w13l.fsf@mail.jurta.org> (raw)
In-Reply-To: <87oasgrvnx.wl-jch@pps.univ-paris-diderot.fr> (Juliusz Chroboczek's message of "Sun, 09 Nov 2014 21:00:50 +0100")
> I like occur a lot, but I find it inflexible -- the matched lines can only
> be specified by a regexp. I'd like to be aple to pass a function to occur
> instead of a regexp.
>
> The function should be called with point at the beginning of a line to
> match/not match, so that
>
> (occur regexp)
>
> is equivalent to
>
> (occur #'(lambda () (looking-at regexp)))
>
> Of course, the function should be able to examine the context around the
> line being matched.
At the core of the Occur engine there is the function re-search-forward.
We could move it out to a separate variable e.g. occur-search-function
(as we do for isearch-search-fun-function). Then you will be able to
override it with your own like
(let ((occur-search-function 'word-search-forward))
(occur string))
next prev parent reply other threads:[~2014-11-09 20:49 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-09 20:00 bug#19004: 24.4; Please provide a non-regexp interface to occur Juliusz Chroboczek
2014-11-09 20:49 ` Juri Linkov [this message]
2021-05-28 2:20 ` Lars Ingebrigtsen
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