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Re: `save-excursion' defeated by `set-buffer'
From: |
martin rudalics |
Subject: |
Re: `save-excursion' defeated by `set-buffer' |
Date: |
Sun, 10 Jan 2010 19:05:55 +0100 |
User-agent: |
Thunderbird 2.0.0.21 (Windows/20090302) |
> An aside: While reading this discussion I wanted to experiment to
> understand the difference between the two forms above. If I execute
> the following from a buffer other than *scratch*, the letter A is
> inserted four places after point, but point does not move:
>
> (with-current-buffer "*scratch*" (forward-char 4) (insert "A"))
>
> However, the doc string for with-current-buffer says nothing about
> restoring point. This is confusing. Also, with-current-buffer expands
> to save-current-buffer, whose doc string also says nothing about
> restoring point. Again confusing.
The form above _does_ move `point' unless that's inhibited by other
(usually text) properties. If *scratch* is displayed in some window,
`point' moves as well but the visible effect is overridden by the fact
that `window-point' in any window showing *scratch* does not move (wrt
to the surrounding text). So I suppose the behavior you report is a
behavior you observed with *scratch* displayed in some window while you
executed that form.
martin
- RE: `save-excursion' defeated by `set-buffer', (continued)
- RE: `save-excursion' defeated by `set-buffer', Drew Adams, 2010/01/06
- Re: `save-excursion' defeated by `set-buffer', Stefan Monnier, 2010/01/09
- Re: `save-excursion' defeated by `set-buffer', David Kastrup, 2010/01/10
- Re: `save-excursion' defeated by `set-buffer', Stefan Monnier, 2010/01/10
- Re: `save-excursion' defeated by `set-buffer', David Kastrup, 2010/01/11
- Re: `save-excursion' defeated by `set-buffer', martin rudalics, 2010/01/11
- Re: `save-excursion' defeated by `set-buffer', Stefan Monnier, 2010/01/11
- RE: `save-excursion' defeated by `set-buffer', Drew Adams, 2010/01/10
- Re: `save-excursion' defeated by `set-buffer', Stefan Monnier, 2010/01/09
- Re: `save-excursion' defeated by `set-buffer', Harald Hanche-Olsen, 2010/01/10
- Re: `save-excursion' defeated by `set-buffer',
martin rudalics <=
- RE: `save-excursion' defeated by `set-buffer', Drew Adams, 2010/01/10
- Re: `save-excursion' defeated by `set-buffer', Harald Hanche-Olsen, 2010/01/10
Re: `save-excursion' defeated by `set-buffer', Davis Herring, 2010/01/04