No-clobber variable?

Article View: gnu.emacs.help

Article #189680

#189680

From: Brian McMinn
Date: Mon, 10 Dec 1990 19:01

21 lines
1460 bytes

The fill-paragraph command is really useful for simple text hacking
and troff input, but it has the ability to totally mung your file with
one keystroke and no warning!  This happens if you fill-paragraph a
section of your file which is bigger than the undo buffer.  This is
easy to do with troff input if you forget to set the nroff-mode
variable.

I don't mind emacs silently forgetting old undo information, but I
want it to stop and query me if I attempt a single operation which
cannot be undone.  Is there a "query-before-massacre" variable that I
can set to prevent this?

I'm using gnu emacs version 18.55.1 on a Sparc based Sun if that makes
any difference.

---
--
   Brian McMinn                 brian@amd.com
   Advanced Micro Devices       N5PSS
   Austin, Texas                1-(512)-462-5389
"You can't leap a chasm in two jumps."

Technical Details

Message-ID: <1990Dec10.190156.17331@mozart.amd.com>

Path: arc1-ca.pugleaf.net!gmdzi!unido!mcsun!uunet!shelby!apple!veritas!amdcad!mozart.amd.com!positron!brian

Show Full Headers

Complete Article Headers

X-Google-Language: ENGLISH,ASCII-7-bit
X-Google-Thread: 103b8b,6a856c563377690a,start
X-Google-Attributes: gid103b8b,public
X-Google-ArrivalTime: 1990-12-10 22:56:42 PST
Path: arc1-ca.pugleaf.net!gmdzi!unido!mcsun!uunet!shelby!apple!veritas!amdcad!mozart.amd.com!positron!brian
From: brian@positron.amd.com (Brian McMinn)
Newsgroups: gnu.emacs.help
Subject: No-clobber variable?
Message-ID: <1990Dec10.190156.17331@mozart.amd.com>
Date: 10 Dec 90 19:01:56 GMT
Sender: usenet@mozart.amd.com (Usenet News)
Organization: Advanced Micro Devices, Austin, TX
Lines: 21
Posted: Mon Dec 10 20:01:56 1990