GNU bug report logs - #41002
Undo breaks inhibit-read-only text property

Previous Next

Full log

Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Serhii Mozghovyi <egnartsms <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: Undo breaks inhibit-read-only text property
Date: Fri, 1 May 2020 13:38:24 +0300

The inhibit-read-only text property in a read-only buffer does not work
with Undo:

C-x b <unique buffer name>, then insert some text, such as:

---

First paragraph.

Second paragraph.

---

Then M-: (put-text-property (point-min) (point-max) 'inhibit-read-only
t), and C-x C-q to make the buffer read-only. Now select the "Se" and
kill it with C-w: it succeeds. Then hit C-/ to undo, select "Sec" and
try to kill again. Now it fails. For any other region that does not
intersect with "Se", killing works.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.