GNU bug report logs - #22847
#17062: 24.3 current-fill-column breaks fill-match-adaptive-prefix

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Package: emacs;

Reported by: Andreas Röhler <andreas.roehler <at> easy-emacs.de>

Date: Mon, 29 Feb 2016 07:33:02 UTC

Severity: minor

Tags: patch

Merged with 17062

Found in version 24.3

Fixed in version 28.1

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

Bug is archived. No further changes may be made.

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From: Andreas Röhler <andreas.roehler <at> easy-emacs.de>
To: 22847 <at> debbugs.gnu.org
Subject: bug#22847: #17062: 24.3 current-fill-column breaks fill-match-adaptive-prefix
Date: Mon, 29 Feb 2016 08:33:23 +0100

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|reopen| #17062


Unfortunatly can't deliver a backtrace, as it was some times ago.

The bug is visible by program-logic already.

fill-match-adaptive-prefix counts on current-fill-column having:

(>= (+ (current-left-margin) (length str)) (current-fill-column))

This will be broken if current-fill-column returns nil.

Returning nil is possible, see inside current-fill-column:

    (if fill-column

If fill-column is nil, current-fill-column will return nil which was the 
case coming upon.
A fix might make sure an integer is returned anyway: think at 0 or 
default value.



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This bug report was last modified 3 years and 359 days ago.

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