From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Dmitry Kurochkin <dmitry.kurochkin@gmail.com>
Cc: emacs-devel@gnu.org
Subject: Re: `vertical-motion', `goto-line' set point to invisible text
Date: Sun, 03 Jul 2011 10:50:21 -0400 [thread overview]
Message-ID: <jwviprjwhee.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <87ei28f4re.fsf@gmail.com> (Dmitry Kurochkin's message of "Sun, 03 Jul 2011 06:59:49 +0400")
> While working on notmuch [1] emacs client, I stumbled upon an unexpected
> behavior: `beginning-of-visual-line' places point to invisible text in
> the beginning to the line. I.e. you have:
> line1
> line2 <--- this line is not visible
> line3 <--- point is on this line
> in this case, `beginning-of-visual-line' will set the position to start
> of line2 (which is invisible), not line3. It differs from what
> `move-beginning-of-line' and even does not match
> `line-beginning-position'. `beginning-of-visual-line' uses
> `vertical-motion' to do the job. `goto-line' has a similar behavior. I
> believe there are more functions like this.
> This does not look right to me. I expect these functions never set
> point inside invisible text and there should be some general way to
> protect from this.
AFAIK none of those positions are *inside* invisible text (remember
that point is always between two chars).
Stefan
next prev parent reply other threads:[~2011-07-03 14:50 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-03 2:59 `vertical-motion', `goto-line' set point to invisible text Dmitry Kurochkin
2011-07-03 6:55 ` Eli Zaretskii
2011-07-03 7:31 ` Dmitry Kurochkin
2011-07-03 13:33 ` Eli Zaretskii
2011-07-04 2:08 ` Dmitry Kurochkin
2011-07-03 14:50 ` Stefan Monnier [this message]
2011-07-03 15:14 ` Eli Zaretskii
2011-07-04 14:01 ` Stefan Monnier
2011-07-04 15:14 ` Eli Zaretskii
2011-07-04 18:10 ` Stefan Monnier
2011-07-04 20:06 ` Eli Zaretskii
2011-07-04 20:06 ` Eli Zaretskii
2011-07-05 2:22 ` Dmitry Kurochkin
2011-07-05 2:55 ` Eli Zaretskii
2011-07-05 3:52 ` Dmitry Kurochkin
2011-07-05 7:56 ` Eli Zaretskii
2011-07-09 13:13 ` Dmitry Kurochkin
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