porting BSD NTTYDISC to a v7 system?

[Dave Sherman]

Does anyone know if it's particularly difficult to port the
Berkeley "new tty discipline" with all its nice character-echoing
features (visual line erase, word erase, correct handling of
character erase, ctrl-R, ctrl-O, ctrl-V, etc.) to a v7-based system?
(Assume that I will take care of any licensing problems.) The
character echoing is the major feature of 4.1BSD which I miss on
v7. (The v7 in question will be Perkin-Elmer's Edition VII Workbench.)
Can /sys/dev/ttynew.c simply be copied mostly intact?

Thanks.

Dave Sherman
The Law Society of Upper Canada
Toronto
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