From: martin rudalics <rudalics@gmx.at>
To: Jyothis V <jyothisv@gmail.com>
Cc: 13122@debbugs.gnu.org
Subject: bug#13122: save-excursion not saving point
Date: Sat, 08 Dec 2012 12:21:08 +0100 [thread overview]
Message-ID: <50C322A4.4060403@gmx.at> (raw)
In-Reply-To: <CAGHGN=X4ruFPs9WvX0SqES6Z=HTbGEMxdBaemB5=2N0EoJaZVA@mail.gmail.com>
> I wrote the following version of transpose-chars which is supposed to
> always transform the last two chars without moving the point.
> (defun gosmacs-tranpose-chars (n)
> (interactive "p")
> (save-excursion
> (forward-char (- n))
> (transpose-chars 1)))
>
> The trouble is, even though I have used save-excursion, the point does
> move 2 characters backwards when n=1! For other values of n, this seems to
> be working fine.
This is a limitation (or bug) in the code of `transpose-subr' and
`transpose-subr-1' due to the use of `delete-and-extract-region' (IIRC
transposing mangles `undo' as well.)
martin
next prev parent reply other threads:[~2012-12-08 11:21 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-08 6:20 bug#13122: save-excursion not saving point Jyothis V
2012-12-08 11:21 ` martin rudalics [this message]
2012-12-21 5:43 ` Chong Yidong
2013-01-07 12:32 ` bug#13122: sort-regexp-fields also seems to not save point Alexander Kjeldaas
2019-04-26 19:53 ` bug#13122: save-excursion not saving point Tino Calancha
2019-04-27 6:57 ` Eli Zaretskii
2019-04-27 7:44 ` Tino Calancha
2019-04-27 9:59 ` Andreas Schwab
2019-05-04 8:39 ` Tino Calancha
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