From: Drew Adams <drew.adams@oracle.com>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: 20254@debbugs.gnu.org
Subject: bug#20254: 25.0.50; `face' overlays with equal priority at the same location
Date: Fri, 3 Apr 2015 15:24:56 -0700 (PDT) [thread overview]
Message-ID: <a4ad73ea-2ab9-426b-ab60-30f37e00cbd3@default> (raw)
In-Reply-To: <jwvego0275n.fsf-monnier+emacsbugs@gnu.org>
> > Is there a rule behind this behavior?
>
> If an overlay is nested inside another, then it takes precedence.
> If neither is nested in the other then the precedence is not documented
> (IIRC it's arbitrarily taken to be "the one that's closest to
> point-min", and if start and end at the same position, then the
> precedence depends on the 100% arbitrary addresses of the overlays in
> memory).
In the case I described, the overlays are on exactly the same positions
(they coincide), so the last phrase applies, apparently: "100% arbitrary
addresses of the overlays in memory".
Any chance this implementation could be revisited, to do something
regular - predictable and user-manipulable? Or would that be too costly
in terms of performance? If it is feasible then please consider this
to be such an enhancement request.
next prev parent reply other threads:[~2015-04-03 22:24 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-03 21:44 bug#20254: 25.0.50; `face' overlays with equal priority at the same location Drew Adams
2015-04-03 22:14 ` Stefan Monnier
2015-04-03 22:24 ` Drew Adams [this message]
2015-04-04 1:07 ` Stefan Monnier
2015-04-04 1:55 ` Drew Adams
2015-04-04 2:48 ` Stefan Monnier
2015-04-04 3:02 ` Drew Adams
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