Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ukma!rutgers!ucla-cs!wales
From: wales@valeria.cs.ucla.edu (Rich Wales)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Telix VT102 emulation
Keywords: telix vt102 emulation
Message-ID: <21224@shemp.CS.UCLA.EDU>
Date: 2 Mar 89 23:04:09 GMT
References: <3308@silver.bacs.indiana.edu> <91936@sun.uucp>
Sender: news@CS.UCLA.EDU
Reply-To: wales@CS.UCLA.EDU (Rich Wales)
Organization: UCLA CS Department, Los Angeles
Lines: 107

In article <3308@silver.bacs.indiana.edu>
burleigh@silver.bacs.indiana.edu (frank burleigh) writes:

	Finally, when I use VI the 'h' (move left) key removes
	characters from the screen (ick), but fortunately does
	not delete them.  What have I got set wrong?  I've
	noticed other VT102 flakiness, mostly characters disap-
	pearing from the screen.

In article <91936@sun.uucp> mms@sun.UUCP (Michael Silverstein) writes:

	I also like Telix very much, but have had problems with
	the VT102 emulation.  Not exactly the one mentioned above,
	but the "r" command (replace char) leaves a blank; then
	redrawing the screen with ^L shows the new char right
	where it should be.  My termcap works fine with other
	VT102 emulators (I've never tried it on a real VT102),
	so I don't think that's the problem.

Make sure you have "non-destructive" backspace mode set, both in the
main options menu and also in any dialing directory entry you use that
sets VT102 mode.

Also, there is at least one bug in Telix 3.11's VT102 emulation that I
am aware of.  The "insert character" code -- ESC [ @ -- is incorrectly
treated as a no-op.  If you add an explicit character count -- i.e.,
ESC [ 1 @ -- it works.

I am including below a modified "termcap" entry which seems to work
satisfactorily with Telix 3.11's VT102 emulation.  I would welcome any
comments or suggestions for improvement.

Note that I changed the "emphasis" parameters ("so" and "us") to use
boldface (attribute 1), instead of reverse video (attribute 7) or
underlining (attribute 4).  Also, since I turned off the status line,
I changed the number of lines ("li") from 24 to 25.  Finally, I took
out all the null-padding (not needed!), and added a "delete character"
code (which, for some reason, wasn't in the VT102 "termcap" I started
out with; maybe it isn't accepted by a "real" VT102?).

Does anyone know when the next release of Telix (3.12?) will come out?

#
# VT102 termcap entry, modified for Telix (1/11/89):
#	Added:		:dc=\E[P:
#			:ic=\E[1@:
#	Removed:	All null-padding
#	Changed:	:li=#25:	(was :li=#24:)
#	Changed:	:so=\E[1m:	(was :so=2\E[7m:)
#	Changed:	:us=\E[1m:	(was :us=2\E[4m:)
#
# NOTE:	"\E[@" should work as "insert character" -- but Telix 3.11
#	treats this as a no-op and will do the operation only if a
#	count of "1" is explicitly inserted.
#
dy|telix|telix-vt102|dec vt102:\
	:bs:\
	:cd=\E[J:\
	:ce=\E[K:\
	:cl=\E[;H\E[2J:\
	:cm=\E[%i%d;%dH:\
	:co#80:\
	:cs=\E[%i%d;%dr:\
	:dc=\E[P:\
	:do=^J:\
	:ho=\E[H:\
	:ic=\E[1@:\
	:is=\E[1;24r\E[24;1H:\
	:k1=\EOP:\
	:k2=\EOQ:\
	:k3=\EOR:\
	:k4=\EOS:\
	:kb=^H:\
	:kd=\EOB:\
	:ke=\E[?1l\E>:\
	:kl=\EOD:\
	:kr=\EOC:\
	:ks=\E[?1h\E=:\
	:ku=\EOA:\
	:le=^H:\
	:li#25:\
	:mb=\E[5m:\
	:md=\E[1m:\
	:me=\E[m:\
	:mr=\E[7m:\
	:nd=\E[C:\
	:pt:\
	:rc=\E8:\
	:rs=\E>\E[?3l\E[?4l\E[?5l\E[?7h\E[?8h:\
	:sc=\E7:\
	:se=\E[m:\
	:so=\E[1m:\
	:sr=\EM:\
	:ue=\E[m:\
	:up=\E[A:\
	:us=\E[1m:\
	:ve=\E[?7h:\
	:vs=\E[?7l:\
	:vt#3:
#
# (end of termcap entry for "telix")
#

-- Rich Wales // UCLA Computer Science Department // +1 (213) 825-5683
   3531 Boelter Hall // Los Angeles, California 90024-1596 // USA
   wales@CS.UCLA.EDU      ...!(uunet,ucbvax,rutgers)!cs.ucla.edu!wales
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