From: utzoo!decvax!cca!chris.umcp-cs@Udel-Relay@sri-unix
Newsgroups: net.unix-wizards
Title: when to echo tty input
Article-I.D.: sri-unix.3063
Posted: Wed Sep  1 22:15:38 1982
Received: Wed Sep  8 02:17:52 1982

From:     Chris Torek 
Date:     30 Aug 82 1:00:25-EDT (Mon)
I like the way the new tty driver (berkeley 4.1 'ttynew') works -- I've
seen the echo-immediately-but-erase-and-move-if-output-comes-through
method (I implemented it in Gosling's Emacs) but don't really like it,
and it's not really nice to make the system spend lots of time in the
tty driver.  Besides, what do you do if (for example) the guy has had
echoing turned off for 10 characters and now he turns it on?  Do you
immediately echo those 10 characters?  It seems to me that a 'retype
pending input' is sufficient (and, of course, a lot easier).