Path: utzoo!censor!geac!torsqnt!news-server.csri.toronto.edu!mailrus!cs.utexas.edu!usc!sdd.hp.com!decwrl!nsc!csi!sono!holley
From: holley@sono.UUCP (Greg Holley)
Newsgroups: comp.emacs
Subject: Re: %% vs. @@
Message-ID: <793@sono.UUCP>
Date: 5 Jul 90 23:09:29 GMT
References: <87.P022y01JM01@JUTS.ccc.amdahl.com> <1990Jun27.145013.29422@talos.pm.com> <8fbY022v01fw01@JUTS.ccc.amdahl.com>
Reply-To: holley@sono.UUCP (Greg Holley)
Organization: ACUSON, Mountain View, CA
Lines: 15

Note:	This stream (with its rather unintuitive title) concernt a 
	possible EMACS mode that would allow editing of a buffer, but never
	write changes to a file.  This is different from the current read-only
	mode, which doesn't allow the buffer to be changed.

It seems to me that the best way to implement this would be via
write-file-hooks.  Simply write a routine that checks a boolean variable
to see if the buffer in question is non-writeable, and return t if
non-writeable.  Then call that routine via write-file-hooks. 

-- 
--Greg Holley     sun!sono!holley     holley%sono@sun.com

"My tale is so strange that, were it written with needles on the interior
corner of an eye, yet would it prove a lesson to the circumspect."