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. -------