Roell's port of Xview2.0

[Thomas Roell]

>1) code in the xview library wasn't handling meta modifiers
>   properly so I couldn't use the quick key combinations in textedit.

I never looked at this part of the code. But it seems to be a bug in XView 2.0
itself.

>2) cmdtool is flakey unless you turn off scrollbars.

On a SPARC 1 I had quite similar problems ...

>3) cmdtool uses pts and thus dosn't seem to support TIOCWINSIZE or
>   job control.

The real big problem is the the ttysw stuff in XView 2.0 is sooo BSD 
specific, that I failed to get all things working. For example in BSD
there is a packet-mode for transmitting date between pty and application.
Also the signal-handling of the ptys is broken, since the is no
TIOCPGRP in SysV. But I think, the most XView application still work under
SysV 3.2.

- Thomas
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