Using '.vs 0' inside TBL macro

[Yair Lenga]

Hi,

I'm using groff with a set of custom macros. My package works OK with 
1.17 (my own build), and with 1.18.1 (Red Hat). When I tried to upgrade 
to 1.19.2 (for improved color macros), I found that my tables are not 
showing up properly. I found a comment in the NEWS:

o Since version 1.19 you can say `.vs 0'.  Older versions emit a warning 
and convert this to `.vs \n[.V]'.

This seems to break my tables, which have been using '.vs 0' to disable 
vertical movement inside gtbl macro. I'm using the following

.TS
tab (~)
l r l r ;
a~b~c~d
e~f~g~h
.XYZ
i~j~k~l
.TE

Where "XYZ" is a macro for some "special effect" using
.de XYZ
.vs 0
AAA
BBB
.vs
..

In 1.17/1.18, this will result in "AAA" and "BBB" printed at the same 
line as "i~j", without extra spacing. In 1.19.2 I'm getting:
a   b   c   d
e   f   g   h
AAA
BBB
i   j   k   l

My goals was to use a macro that will create "special effect", without 
any vertical movement. (The real macro uses drawing commands - looks 
better, but example is much larger). In version 1.19.2 the '.vs 0' 
actually result in default line movement.

I'm not sure if the new behavior (.vs 0 => converted to .vs <default>) 
is intentional. If this is the case, how can I get the old "no vertical 
movement" option. The groff-1 info page provide example about '.vs 0' - 
implying that this is accepted value.

Please fix/bring back the old  '.vs 0'

Many thanks,
Yair

--

Yair Lenga
Director
The Yield Book
Phone: 212-816-7468
Fax: 212-816-7766
Email: address@hidden
Citigroup Global Markets Inc.

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.\" Begin_Document: 
.nf
.de TSHADOW
.vs 0
---
|||
.vs
..
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Portfolio Sector Breakdown
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.\" Begin Table (15 x 5)
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.TS
tab(~)  allbox ;
LF(HB)P8  2 NF(HB)P8  2 s  2 s  2 NF(HB)P8  .
~BBBCORP~Credit
.T&
LF(HB)P8 NF(HB)P8 NF(HB)P8 NF(HB)P8 NF(HB)P8  .
~# Issues~MktVal~% MktVal~% MktVal
_
.TSHADOW  200 5
Total~1,228~790 MM~100.0~
.T&
LF(HR)P8 NF(HR)P8 NF(HR)P8 NF(HR)P8 NF(HR)P8  .
_
.TSHADOW  200 5
Cash~~~~
.TSHADOW  200 5
Treasury~~~~
.TSHADOW  200 5
Gvt Spon~~~~
.T&
LF(HB)P8 NF(HB)P8 NF(HB)P8 NF(HB)P8 NF(HB)P8  .
Credit~1,228~790 MM~100.0~100.0
.T&
LF(HR)P8 NF(HR)P8 NF(HR)P8 NF(HR)P8 NF(HR)P8  .
   Industrial~781~488 MM~61.7~61.7
   Utility~235~162 MM~20.5~20.5
   Financial~166~79,779 M~10.1~10.1
   Svgn/Prov~46~60,714 M~7.7~7.7
   Other Corp~~~~
.TSHADOW  200 5
Mortgage~~~~
.TSHADOW  200 5
ABS~~~~
.TSHADOW  200 5
Other~~~~
.T&
lw(0.67i-2n) lw(0.30i-2n) lw(0.30i-2n) lw(0.30i-2n) lw(0.30i-2n) .
.TE