From: Eli Zaretskii <eliz@gnu.org>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: dmitry.kurochkin@gmail.com, emacs-devel@gnu.org
Subject: Re: `vertical-motion', `goto-line' set point to invisible text
Date: Mon, 04 Jul 2011 18:14:31 +0300 [thread overview]
Message-ID: <83y60eoz6w.fsf@gnu.org> (raw)
In-Reply-To: <jwvfwmmdu3g.fsf-monnier+emacs@gnu.org>
> From: Stefan Monnier <monnier@iro.umontreal.ca>
> Cc: dmitry.kurochkin@gmail.com, emacs-devel@gnu.org
> Date: Mon, 04 Jul 2011 10:01:10 -0400
>
> >> AFAIK none of those positions are *inside* invisible text
> > Try "M-x describe-text-properties RET", and you will see this isn't
> > true.
>
> AFAIK, describe-text-properties describes the properties of the char
> *after* point, so if you're at the beginning of invisible text (yet not
> inside it), describe-text-properties will show the `invisible' property.
So how many character positions are invisible after this:
(insert "line1\nline2\nline3\n")
(goto-line 2)
(put-text-property (line-beginning-position)
(line-beginning-position 2)
'invisible 'invis1)
?
Also, since we show cursor on the character after point, which is
invisible, what exactly do we mean to achieve in this case by
adjust_point_for_property?
Finally, what do you think of this:
(progn (switch-to-buffer "test")
(insert "aline1\nbline2\ncline3\n")
(goto-line 2)
(put-text-property (line-beginning-position)
(line-beginning-position 2)
'invisible 'invis1)
(add-to-invisibility-spec 'invis1)
(goto-char (point-max)))
Eval this in *scratch*, then type "C-p C-x =". You will see that
Emacs reports that point is position 8 and the character at point is
`b', whereas what is shown (correctly) under the cursor is `c' whose
buffer position is 15. Do you think this is correct behavior?
next prev parent reply other threads:[~2011-07-04 15:14 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
2011-07-03 15:14 ` Eli Zaretskii
2011-07-04 14:01 ` Stefan Monnier
2011-07-04 15:14 ` Eli Zaretskii [this message]
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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