From: Michael Heerdegen <michael_heerdegen@web.de>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: 19200@debbugs.gnu.org, Jonas Bernoulli <jonas@bernoul.li>
Subject: bug#19200: Point adjustemnt moves *into* invisible text
Date: Mon, 21 Mar 2016 15:52:55 +0100 [thread overview]
Message-ID: <87d1qnevco.fsf@web.de> (raw)
In-Reply-To: <jwvio0gyrg1.fsf-monnier+Inbox@gnu.org> (Stefan Monnier's message of "Mon, 21 Mar 2016 08:08:59 -0400")
Stefan Monnier <monnier@iro.umontreal.ca> writes:
> move-to-column moves forward from BOL, whereas beginning-of-line moves
> only backward, so the two probably end up at opposite ends of the
> invisible region.
>
> BTW, regardless of fixing this bug, I think you have a problem: if the
> exact position within the invisible text is so important that it can
> end up
> selecting a different line, then fixing bug#19200 won't do you much
> good: there are many cases where point-adjustment won't do what you want
> (e.g. it won't move point at all, even though it's somewhere in the
> middle of the invisible region) and hence it will end up "at the wrong
> place".
>
> The way point-adjustment is defined is too conservative for that.
> So I suggest you try and make you code more robust w.r.t the position of
> point within an invisible region in any case.
Well, we just want that cursor movement starting from a visible position
not end up at an invisible position - the docs seem to suggest that this
should not happen, right?
We have the following, very simple situation:
Line N
{ M invisible lines here }
Line N+M+1
Line N and Line N+M+1 are completely visible, and displayed after each
other. Point is at the start of Line N, no invisible text near that
position. Now I hit [down] one time and end up somewhere inside the
invisible text in between.
Michael.
next prev parent reply other threads:[~2016-03-21 14:52 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-26 22:22 bug#19200: Point adjustemnt moves *into* invisible text Stefan Monnier
2016-03-20 22:58 ` Michael Heerdegen
2016-03-21 1:21 ` Stefan Monnier
2016-03-21 2:15 ` Michael Heerdegen
2016-03-21 2:23 ` Michael Heerdegen
2016-03-21 18:30 ` Eli Zaretskii
2016-03-21 12:08 ` Stefan Monnier
2016-03-21 14:52 ` Michael Heerdegen [this message]
2016-03-21 15:36 ` Stefan Monnier
2016-03-21 15:54 ` Michael Heerdegen
2016-03-21 18:08 ` Stefan Monnier
2016-03-21 18:28 ` Eli Zaretskii
2016-03-21 19:24 ` Michael Heerdegen
2016-03-21 19:40 ` Eli Zaretskii
2016-03-21 20:10 ` Michael Heerdegen
2016-03-21 20:21 ` Michael Heerdegen
2016-03-21 20:43 ` Stefan Monnier
2016-03-22 16:39 ` Eli Zaretskii
2016-03-22 18:36 ` Stefan Monnier
2016-03-22 18:52 ` Eli Zaretskii
2016-03-23 2:13 ` Stefan Monnier
2016-03-23 15:15 ` Eli Zaretskii
2016-03-23 15:32 ` Stefan Monnier
2016-03-23 15:42 ` Eli Zaretskii
2016-03-23 16:10 ` Stefan Monnier
2016-03-31 17:17 ` Eli Zaretskii
2016-03-31 18:04 ` Stefan Monnier
2016-03-31 23:32 ` Michael Heerdegen
2016-03-26 21:49 ` bug#19200: Point adjustment " John Wiegley
2016-03-21 18:31 ` bug#19200: Point adjustemnt " Eli Zaretskii
2016-03-21 18:50 ` Michael Heerdegen
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