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Re: address@hidden: Redisplay bug in 21.2.90.1]
From: |
Kim F. Storm |
Subject: |
Re: address@hidden: Redisplay bug in 21.2.90.1] |
Date: |
15 Jun 2002 00:54:45 +0200 |
User-agent: |
Gnus/5.09 (Gnus v5.9.0) Emacs/21.3.50 |
Richard Stallman <address@hidden> writes:
> I just committed a fix on HEAD.
>
> Thanks.
>
> I guess it isn't serious enough to include on RC branch...?
>
> Maybe it is--it depends how safe the fix is.
I think the fix is quite safe.
I actually added the fix in three different functions which
inserts text in a buffer. Only one of these funtions was
responsible for the behaviour reported by Jim.
> Could you show us the fix?
>
Index: insdel.c
===================================================================
RCS file: /cvs/emacs/src/insdel.c,v
retrieving revision 1.166
retrieving revision 1.167
diff -c -r1.166 -r1.167
*** insdel.c 9 Feb 2002 22:57:25 -0000 1.166
--- insdel.c 13 Jun 2002 22:07:13 -0000 1.167
***************
*** 1031,1036 ****
--- 1031,1040 ----
if (GPT_BYTE < GPT)
abort ();
+ /* The insert may have been in the unchanged region, so check again. */
+ if (Z - GPT < END_UNCHANGED)
+ END_UNCHANGED = Z - GPT;
+
adjust_overlays_for_insert (PT, nchars);
adjust_markers_for_insert (PT, PT_BYTE,
PT + nchars, PT_BYTE + nbytes,
***************
*** 1154,1159 ****
--- 1158,1167 ----
if (GPT_BYTE < GPT)
abort ();
+ /* The insert may have been in the unchanged region, so check again. */
+ if (Z - GPT < END_UNCHANGED)
+ END_UNCHANGED = Z - GPT;
+
adjust_overlays_for_insert (PT, nchars);
adjust_markers_for_insert (PT, PT_BYTE, PT + nchars,
PT_BYTE + outgoing_nbytes,
***************
*** 1300,1305 ****
--- 1308,1317 ----
if (GPT_BYTE < GPT)
abort ();
+
+ /* The insert may have been in the unchanged region, so check again. */
+ if (Z - GPT < END_UNCHANGED)
+ END_UNCHANGED = Z - GPT;
adjust_overlays_for_insert (PT, nchars);
adjust_markers_for_insert (PT, PT_BYTE, PT + nchars,
--
Kim F. Storm <address@hidden> http://www.cua.dk