🚀 go-pugleaf

    Thanks to the several people who suggested ANSI escape sequences,
issued via putch(), to take control of a text-mode screen.  As usual
it's obvious after the fact.
    Fortunately I have an old IBM DOS technical manual lying around
that describes the ANSI sequences, since a search of C-Set/2 and
WorkFrame2 documentation, both online and hardcopy, failed to turn
them up.  But that may be my fault.  There's a high art in picking the
right keyword, whether for hardcopy indices or "kwikinf".  The "ANSI"
keyword seems to be used up in promising ANSI-C conformance in the
compiler.

Regards, rLs