rem@psc90.UUCP (Bob Mahoney?) (04/29/89)
Hello all.
First, the good news: as new elm users, we this is truely fine software.
Thanks to the Development Team!
We are having one problem: as a mixed computing enviroment, we have all flavors
of terminals. Elm seems to mis-paint a DEC vt220 screen, almost as though it
can't see the first couple of tabs. (It all goes thataway ->>!)
If we setenv TERM vt100, all is well, regardless of the actual setting of the
220...
Is this a real problem, or have we missed something? (Rob- I *did* RTFM: I
didn't see any references...) We've only been up about 24 hours, so forgive
me if we've missed something obvious.
Thanks!
Bob Mahoney Network Manager PSC Computer Services, Plymouth, NH 03264
Bitnet: B_MAHONEY@UNHH uucp: [uunet!unh!,dartvax!]psc90!rem
/---------------------------------------------------------------------------\
| "The examined life is no picnic." -- Robert Fulghum |
\---------------------------------------------------------------------------/rob@PacBell.COM (Rob Bernardo) (04/30/89)
In article <880@psc90.UUCP> rem@.UUCP (Bob Mahoney?) writes:
+We are having one problem: as a mixed computing enviroment, we have all flavors
+of terminals. Elm seems to mis-paint a DEC vt220 screen, almost as though it
+can't see the first couple of tabs. (It all goes thataway ->>!)
+
+If we setenv TERM vt100, all is well, regardless of the actual setting of the
+220...
Since when you lie that your terminal is a vt100 everything goes okay,
and since ELM gets *all* its information from your termcap/terminfo
entry, either:
1. One field that differs between the two entries is wrong.
2. One field that differs between the two entries is not
handled properly by ELM.
Knowing the ELM curses code quite well and having heard no complaints
of this sort before, my professional hunch is strongly #1.
Unfortunately, not having a vt220, I can't check the problem out. Want
to help us out? Do the following. (I'm posting this because this is
good advice for people who are befuddled when trying to track down
termcap/terminfo bugs.)
1. Make a list of terminal cap strings that differ between the
vt100 and vt220 entries.
2. Make an entry you can play with. (If termcap, most systems
will allow you to define TERMCAP in your environment to point
to the name of a file to use in place of /etc/termcap. If terminfo,
set TERMINFO to point to an alternate directory in place of
/usr/lib/terminfo.
3. Make an entry for vt220. Repeat the following until the problem
goes away.
a. Change one field that differs between the vt220 and vt100
entries to the vt100 value.
b. Test to see if the screen painting problem has gone away.
This procedure will isolate the field in your termcap/terminfo entry that
is either wrong or that elm doesn't deal with properly.
--
Rob Bernardo, Pacific Bell UNIX/C Reusable Code Library
Email: ...![backbone]!pacbell!pbhyf!rob OR rob@pbhyf.PacBell.COM
Office: (415) 823-2417 Room 4E850O San Ramon Valley Administrative Center
Residence: (415) 827-4301 R Bar JB, Concord, Californiapinkas@hobbit.intel.com (Israel Pinkas ~) (05/03/89)
In article <5160@pbhyf.PacBell.COM> rob@PacBell.COM (Rob Bernardo) writes: > In article <880@psc90.UUCP> rem@.UUCP (Bob Mahoney?) writes: > +We are having one problem: as a mixed computing enviroment, we have all > +flavors of terminals. Elm seems to mis-paint a DEC vt220 screen, almost > +as though it can't see the first couple of tabs. (It all goes thataway > +->>!) > + > +If we setenv TERM vt100, all is well, regardless of the actual setting > +of the 220... > > Since when you lie that your terminal is a vt100 everything goes okay, > and since ELM gets *all* its information from your termcap/terminfo > entry, either: > > 1. One field that differs between the two entries is wrong. > > 2. One field that differs between the two entries is not > handled properly by ELM. I suspect that the VT220 might be set up to emulate a VT100. DEC, for some reason, build backward compatibility into most of their terminals. Many of our users set their VT220's up as VT100's. This allows them top use the F11, F12, and F13 keys as ESC, BS, and LF, respectively. In VT220 mode, you have to use the control kwy with [, H, and J. -Israel -- -------------------------------------- Disclaimer: The above are my personal opinions, and in no way represent the opinions of Intel Corporation. In no way should the above be taken to be a statement of Intel. UUCP: {amdcad,decwrl,hplabs,oliveb,pur-ee,qantel}!intelca!mipos3!cadev4!pinkas ARPA: pinkas%cadev4.intel.com@relay.cs.net CSNET: pinkas@cadev4.intel.com