From: martin rudalics <rudalics@gmx.at>
To: Miles Bader <miles@gnu.org>
Cc: emacs-devel@gnu.org
Subject: Re: undo weirdness with insert-file-contents
Date: Thu, 28 Feb 2008 14:12:57 +0100 [thread overview]
Message-ID: <47C6B359.10302@gmx.at> (raw)
In-Reply-To: <buor6exjqeo.fsf@dhapc248.dev.necel.com>
[-- Attachment #1: Type: text/plain, Size: 796 bytes --]
> The value of buffer-undo-list is:
>
> (nil
> (10 . 21)
> (1 . 21)
> (t 0 . 0))
The (1 . 21) entry is silly and obviously breaks undoing the prior
(insert "Foo: bar\n"). Although EQ (XCAR (tem), lbeg) was not very
intelligent, setting this to (XCAR (tem) == lbeg) doesn't seem to help
either. Please try again with the attached patch.
GDB doesn't work here currently, so I can't debug this. But could you
try finding out in `insert-file-contents' (1) why the test in
if (CONSP (tem) && INTEGERP (XCAR (tem)) &&
INTEGERP (XCDR (tem)) && (XCAR (tem) == lbeg))
/* In the non-visiting case record only the final insertion. */
current_buffer->undo_list =
Fcons (Fcons (lbeg, lend), Fcdr (old_undo));
fails and (2) which value old_undo has here? Thanks in advance.
[-- Attachment #2: fileio.patch --]
[-- Type: text/plain, Size: 1008 bytes --]
*** fileio.c.~1.602.~ Thu Feb 14 20:41:44 2008
--- fileio.c Thu Feb 28 13:59:42 2008
***************
*** 4674,4680 ****
/* Save old undo list and don't record undo for decoding. */
old_undo = current_buffer->undo_list;
- current_buffer->undo_list = Qt;
if (NILP (replace))
{
--- 4674,4679 ----
***************
*** 4768,4774 ****
{
Lisp_Object tem = XCAR (old_undo);
if (CONSP (tem) && INTEGERP (XCAR (tem)) &&
! INTEGERP (XCDR (tem)) && EQ (XCAR (tem), lbeg))
/* In the non-visiting case record only the final insertion. */
current_buffer->undo_list =
Fcons (Fcons (lbeg, lend), Fcdr (old_undo));
--- 4767,4773 ----
{
Lisp_Object tem = XCAR (old_undo);
if (CONSP (tem) && INTEGERP (XCAR (tem)) &&
! INTEGERP (XCDR (tem)) && (XCAR (tem) == lbeg))
/* In the non-visiting case record only the final insertion. */
current_buffer->undo_list =
Fcons (Fcons (lbeg, lend), Fcdr (old_undo));
next prev parent reply other threads:[~2008-02-28 13:12 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-28 7:46 undo weirdness with insert-file-contents Miles Bader
2008-02-28 9:56 ` martin rudalics
2008-02-28 11:01 ` Miles Bader
2008-02-28 13:12 ` martin rudalics [this message]
2008-02-28 16:52 ` Stefan Monnier
2008-02-28 19:31 ` martin rudalics
2008-02-28 20:01 ` Miles Bader
2008-02-28 22:19 ` martin rudalics
2008-02-28 21:35 ` Stefan Monnier
2008-02-28 22:21 ` martin rudalics
2008-02-28 17:45 ` Glenn Morris
2008-02-28 19:35 ` martin rudalics
2008-02-28 20:28 ` Glenn Morris
2008-02-28 22:20 ` martin rudalics
2008-02-29 22:42 ` martin rudalics
2008-03-02 5:02 ` Stefan Monnier
2008-03-02 12:44 ` martin rudalics
2008-03-02 19:07 ` Stefan Monnier
2008-03-02 22:05 ` martin rudalics
2008-03-03 2:15 ` Stefan Monnier
2008-03-03 9:09 ` martin rudalics
2008-03-03 21:03 ` Stefan Monnier
2008-03-07 9:33 ` martin rudalics
2008-03-07 22:04 ` Stefan Monnier
2008-03-08 9:55 ` martin rudalics
2008-03-02 22:18 ` Bill Wohler
2008-03-03 9:09 ` martin rudalics
2008-02-29 5:50 ` Bill Wohler
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