From mboxrd@z Thu Jan  1 00:00:00 1970
From: lars@nocrew.org (Lars Brinkhoff)
Date: Thu, 02 Nov 2017 18:32:12 +0000
Subject: [TUHS] Happy birthday, Morris Worm!
In-Reply-To: <D9C7A67A-258C-4568-A4E8-E0C5859469FE@gmail.com> (Don Hopkins's
 message of "Thu, 2 Nov 2017 18:56:16 +0100")
References: <alpine.BSF.2.21.1711020915520.66513@aneurin.horsfall.org>
 <D9C7A67A-258C-4568-A4E8-E0C5859469FE@gmail.com>
Message-ID: <7wpo90zg43.fsf@junk.nocrew.org>

Don Hopkins wrote:
> emacs /usr/ucb/sendmail (or whatever directory you keep all your
> stinky hippie software in), ^S DEBUG ESC M-b ^D ^Q ^@ ^X ^S (that is,
> null out the first character of the “DEBUG” command).

This piqued my interest, because exiting incremental search with ESC
doesn't look familiar to me (unless in ITS).  I tried it in a recent
Emacs, and just got "ESC M-b is undefined".  Emacs 18 was contemporary
with the Morris Worm.  Would it allow ESC?