Character echo at read time

[Doug Gwyn]

In article <397 at marob.MASA.COM> daveh at marob.masa.com (Dave Hammond) writes:
-In article <8418 at smoke.ARPA> gwyn at brl.arpa (Doug Gwyn (VLD/VMB) <gwyn>) writes:
->In a UNIX implementation of deferred echo, presumably one would
->type ^R to check his most recent input line while there is still
->time to edit it (before typing a newline).
-Only if the UNIX implementation supports ^R.

Well, of course.  If it didn't already support ^R, one would add
that as part of the implementation.