From: Phillip Helbig [HELBPHI@sysdev.deutsche-boerse.com]
Sent: Thursday, March 28, 2002 12:09 PM
To: Info-VAX@Mvb.Saic.Com
Subject: Re: Help! VT100 emulators - some problems.

> It's been many years, but I'm pretty sure that the VT200 and VT300
> didn't have a mechanism to "invert" letters.  But imagining that there
> is a use for the feature, and that someone has implemented it using a
> valid ANSI sequence - DECterm should at least properly ignore it. 

For your enjoyment, here it is!

After UUDECODING this, TYPE it, then (try to) continue working normally.

Yes, my DECterm ignores it (though using COPY/FTP to copy it, although 
copying it successfully, activates the line-drawing character set!) 
while on my VT520 it works as designed.

begin 640 UPSIDE.TXT
M&TT;6S8R(G`*&TV0.S$[,7LQ/S\_<R\_/S]&.R\_1C\_1CL_3WM/3WM/+S]`
M1D!`1D`[3V=G>V=G+S]!049!04"<"AM-D#LU.S%[,4M+/U]/1T,O0T%`/S]%
M13M31U-C8V-7+S\_0D-#0T([+S\_0T5`.S\_0T=O+S\_0T%`G`H;39`[.3LQ
M>S$_/V]'0R\_/T!!0SM?9V]?;V=?+S]!0#]`03M?7U]W7U]?+S\_/T([/S\_
M1TM!G`H;39`[,3,[,7LQ7U]?7U]?7SL_/S]+2SL_/S]?3T=#+T-!0#MO1T-#
M0T=O+T!!0T-#04"<"AM-D#LQ-SLQ>S$_0T-[0T,O/S\_1D%`.T-C8V-34TLO
M0D-#0T-#03M78V-C0T-'+T-%1$-#0T,[3T][3T]O3R\_/T9!0)P*&TV0.S(Q
M.S%[,7=#0T-#8V<O0T1$1$1#1CM78V-C8U-W+T%#0T-#04`[/S]?6R]%1$-#
M0T-#.U=C8V-C8U<O0D-#0T-#0IP*&TV0.S(U.S%[,6]'8V-C8T<O0D1#0T-#
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M.S(Y.S%[,4]/3T]/3T\O0$!`0$!`0#M?/T\_1S]#+S\_0#]!/T,[/S\_<R]!
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M0#M'4U-34U-C+S]`0$!`0#L_1T-#=R\_/T!`1D!`G`H;39`[.#4[,7LQ0W=#
M0T-#=R\_0#\_/S]`.U]/1T-'3U\O0#\_/S\_0#MW0T=/1T-W+T`_/S\_/T`[
M/T-G3T]G0R\_0#\_/S]`G`H;39`[.#D[,7LQ/WU02$A(<2\_0#\_/S]`.T-C
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`
end