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Re: `vertical-motion', `goto-line' set point to invisible text
From: |
Eli Zaretskii |
Subject: |
Re: `vertical-motion', `goto-line' set point to invisible text |
Date: |
Mon, 04 Jul 2011 18:14:31 +0300 |
> From: Stefan Monnier <address@hidden>
> Cc: address@hidden, address@hidden
> 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?
- `vertical-motion', `goto-line' set point to invisible text, Dmitry Kurochkin, 2011/07/03
- Re: `vertical-motion', `goto-line' set point to invisible text, Stefan Monnier, 2011/07/03
- Re: `vertical-motion', `goto-line' set point to invisible text, Eli Zaretskii, 2011/07/03
- Re: `vertical-motion', `goto-line' set point to invisible text, Stefan Monnier, 2011/07/04
- Re: `vertical-motion', `goto-line' set point to invisible text,
Eli Zaretskii <=
- Re: `vertical-motion', `goto-line' set point to invisible text, Stefan Monnier, 2011/07/04
- Re: `vertical-motion', `goto-line' set point to invisible text, Eli Zaretskii, 2011/07/04
- Re: `vertical-motion', `goto-line' set point to invisible text, Eli Zaretskii, 2011/07/04
- Re: `vertical-motion', `goto-line' set point to invisible text, Dmitry Kurochkin, 2011/07/04
- Re: `vertical-motion', `goto-line' set point to invisible text, Eli Zaretskii, 2011/07/04
- Re: `vertical-motion', `goto-line' set point to invisible text, Dmitry Kurochkin, 2011/07/04
- Re: `vertical-motion', `goto-line' set point to invisible text, Eli Zaretskii, 2011/07/05
- Re: `vertical-motion', `goto-line' set point to invisible text, Dmitry Kurochkin, 2011/07/09