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From: david@varian.UUCP (David Brown)
Newsgroups: net.info-terms
Subject: need termcap/cm help - tvi955
Message-ID: <362@varian.UUCP>
Date: Wed, 28-Aug-85 19:58:14 EDT
Article-I.D.: varian.362
Posted: Wed Aug 28 19:58:14 1985
Date-Received: Mon, 2-Sep-85 03:55:51 EDT
Distribution: net
Organization: Varian, Walnut Creek, CA
Lines: 41

We just received some TeleVideo 955 terminals -- this a new model -- cheap
(~$400) and loaded with features -- 80/132 columns, embedded or non-embedded
attributes, programmable function keys, 14" screen in green or amber, etc.
So far we're happy with them, but I've run into a problem in creating a
termcap for them.

What I've done so far (for those with similar terminals):
	I used the tvi950 termcap and removed vb (visual bell), is (init
	string), vs, ve (vi start and end sequence) because I didn't like
	what they did.   I also deleted ug and sg (underline and standout
	mode glitch count) and added xs because I want to use no-space
	attributes.

The problem:
	cursor motion (cm)!
	For columns 1 through 80, the cursor motion is the same as for other
	TeleVideo terminals (and many other terminals as well) -- 
		cm = \E=%+\040%+\040
		(ESC = r c,  where row and column are added to space to
		make them printable).

	BUT .. for columns 81 through 132, the sequence is:
		ESC = r ~ c
		and the value of c is calculated by subtracting 80 from
		the column number and then adding space.

This is the first time I've seen a cursor motion sequence like this, and I
can't find anyway to specify something like this.  Does anyone have any
ideas?  Or is this something that termcap can't handle without modifications
(adding new definitions to termcap and adding new code to termlib/tgoto)?

The closest thing to what I need is the %> specification to cm, but I
don't think it does exactly what I need (I might be able to modify a
value if it's greater than some constant, but how does it know when to
output the tilde?).


-- 
	David Brown	 (415) 945-2199
	Varian Instruments 2700 Mitchell Dr.  Walnut Creek, Ca. 94598
	{zehntel,dual,amd,fortune,rtech}!varian!david