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From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Eli Zaretskii <eliz@gnu.org>
Cc: 15312@debbugs.gnu.org, kjambunathan@gmail.com
Subject: bug#15312: Info (point-entered, point-left): Doc incomplete, hence incorrect
Date: Fri, 13 Sep 2013 16:32:16 -0400	[thread overview]
Message-ID: <jwvhadoo4nr.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <83ob7wh6b4.fsf@gnu.org> (Eli Zaretskii's message of "Fri, 13 Sep 2013 22:26:07 +0300")

> (Personally, I think this test is just an attempt to optimize costly
> text property comparisons when they are not necessary.)

Agreed.

> To get this right, we need to decide what is the correct behavior in
> this case.  Do we want the hooks to be called for each point motion,
> or do we want them to be called only at point-min and point-max?

I think the correct thing to do is too costly for an operation that's
performed every time we move point.

The right thing to do is to declare point-entered and point-left
properties as obsolete and replace them by something like cursor-entered
and cursor-left properties which are only checked at command boundaries
(or better, checked just before redisplay).


        Stefan





  reply	other threads:[~2013-09-13 20:32 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-09-09 13:34 bug#15312: Info (point-entered, point-left): Doc incomplete, hence incorrect Jambunathan K
2013-09-09 16:37 ` Eli Zaretskii
2013-09-10  3:33   ` Jambunathan K
2013-09-10  3:40     ` Jambunathan K
2013-09-10 15:18     ` Eli Zaretskii
2013-09-11  9:55       ` Jambunathan K
2013-09-11 13:42         ` Eli Zaretskii
2013-09-13  5:22           ` Jambunathan K
2013-09-13  6:15             ` Jambunathan K
2013-09-13  8:02               ` Eli Zaretskii
2013-09-13 10:28                 ` Jambunathan K
2013-09-13 13:12               ` Stefan Monnier
2013-09-13 13:29                 ` Eli Zaretskii
2013-09-13 15:15                   ` Stefan Monnier
2013-09-13 15:59                     ` Eli Zaretskii
2013-09-13 16:28                       ` Stefan Monnier
2013-09-13 16:42                         ` Jambunathan K
2013-09-13 16:45                         ` Eli Zaretskii
2013-09-13 17:18                           ` Stefan Monnier
2013-09-13 19:26                             ` Eli Zaretskii
2013-09-13 20:32                               ` Stefan Monnier [this message]
2013-09-14  6:48                                 ` Eli Zaretskii
2013-09-16 16:15                                   ` Stefan Monnier
2013-09-16 17:10                                     ` Eli Zaretskii
2013-09-13 16:20                     ` Jambunathan K
2013-09-13 16:43                       ` Eli Zaretskii
2013-09-13 17:19                         ` Stefan Monnier
2013-09-13 19:27                           ` Eli Zaretskii
2013-09-13 20:35                             ` Stefan Monnier
2013-09-14  6:50                               ` Eli Zaretskii
2013-09-13  8:03             ` Eli Zaretskii
2013-09-14  6:35               ` Jambunathan K
2013-11-15  5:04 ` Jambunathan K

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