From: utzoo!decvax!cca!Douglas@sri-unix
Newsgroups: net.unix-wizards
Title: Reply to: emacs control character warning
Article-I.D.: sri-unix.1838
Posted: Tue Jun 22 02:08:09 1982
Received: Sun Jun 27 00:49:12 1982

Date:  9 Jun 1982 at 1810-CDT
(VT52 does NOT send DC3/DC1 characters for flow control; VT100 does.)

Apart from the use of control characters being a poor naive-user interface,
ESC, DC1..4 are RESERVED for device control according to ANSI standards and
common usage.  Several other control characters also have meaning during
various forms of data communication, even if you're running a screen editor
at the time.  None of these characters should be used in a portable program
product.
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