GNU bug report logs - #13949
24.3.50; `fill-paragraph' should not always put the buffer as modified

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Package: emacs;

Reported by: Dani Moncayo <dmoncayo <at> gmail.com>

Date: Wed, 13 Mar 2013 22:11:01 UTC

Severity: wishlist

Tags: fixed

Merged with 21155

Found in versions 24.3.50, 24.4.1, 25.0.50

Fixed in version 26.1

Done: Lars Magne Ingebrigtsen <larsi <at> gnus.org>

Bug is archived. No further changes may be made.

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Message #281 received at 13949 <at> debbugs.gnu.org (full text, mbox):

From: Dmitry Gutov <dgutov <at> yandex.ru>
To: Lars Magne Ingebrigtsen <larsi <at> gnus.org>
Cc: Óscar Fuentes <ofv <at> wanadoo.es>,
 John Wiegley <jwiegley <at> gmail.com>, Jaakov <j_k_v <at> ro.ru>, 13949 <at> debbugs.gnu.org
Subject: Re: bug#13949: 24.4.1; `fill-paragraph' should not always put the
 buffer as modified
Date: Sun, 27 Mar 2016 23:27:40 +0300

On 03/27/2016 06:50 PM, Lars Magne Ingebrigtsen wrote:

> Comparison is fast, but making a copy of a buffer (or its contents)
> isn't.  (If the buffer is large, that is.)  If you've loaded a 2GB file
> and hit `M-q' on a line, it would be rather awkward if that made Emacs
> allocate an additional 2GB of data.

Compare the "current paragraph", then (its bounds can be saved at the 
beginning of the fill-paragraph).

Or track the affected area via before-change-functions.

buffer-undo-list should also have the necessary information.
This bug report was last modified 8 years and 166 days ago.

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