From: Juri Linkov <juri@jurta.org>
To: "Lennart Borgman \(gmail\)" <lennart.borgman@gmail.com>
Cc: Ted Zlatanov <tzz@lifelogs.com>, emacs-devel@gnu.org
Subject: Re: add INVERT to re-search-{forward, backward}
Date: Mon, 25 Aug 2008 22:45:43 +0300 [thread overview]
Message-ID: <877ia4anfc.fsf@jurta.org> (raw)
In-Reply-To: <48B2D679.9050206@gmail.com> (Lennart Borgman's message of "Mon, 25 Aug 2008 17:57:45 +0200")
>> Instead of this, I think the change should be done at the occur level,
>> since occur's algorithm is line-based and can skip lines that contain
>> a given regexp. This could be similar to the algorithm used by the
>> command `flush-lines' in the same file. `occur' currently works like the
>> command `keep-lines' that keeps lines containing the specified regexp.
>> But with a new INVERT argument, `occur' could work like `flush-lines' that
>> keep everything except lines containing the specified regexp.
>
> This is also similar to grep etc.
Yes, as a line-oriented tool, grep's -v --invert-match option is what
could be modelled in occur.
Then a negative prefix argument of `occur' could mean inverting the
regexp and displaying non-matching lines.
--
Juri Linkov
http://www.jurta.org/emacs/
next prev parent reply other threads:[~2008-08-25 19:45 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-29 16:02 occur API change proposal Ted Zlatanov
2007-12-01 0:34 ` Juri Linkov
2008-08-05 18:49 ` add INVERT to re-search-{forward, backward} (was: occur API change proposal) Ted Zlatanov
2008-08-25 15:45 ` Juri Linkov
2008-08-25 15:57 ` add INVERT to re-search-{forward, backward} Lennart Borgman (gmail)
2008-08-25 19:45 ` Juri Linkov [this message]
2008-08-25 20:07 ` Lennart Borgman (gmail)
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