Re: [Groff] small bug in tbl

[Tadziu Hoffmann]

> Data tables usually are set with three horizontal lines with
> different thickness, the convention is something like this:
> 
> ---------------------------------- <- 0.5pt thick
>         Optional table title
> column      entry            names
> ---------------------------------- <- 1pt thick
> data1       data2         data3
> ---------------------------------- <- 0.75pt thick


Never heard of this convention (to be honest, I think it's
rather stupid), but how about something like this (you might
still need to fiddle with the vertical spacing somewhat):

.de HR
\v'-.6m'\s'\\$1'\D'l \\n[TW]u 0'\s0
.sp -.5
..
.TS
center;
cB cB
l l.
.HR 5
Number  Name
.HR 20
1       ichi
2       ni
3       san
4       shi
5       go
.HR 10
.TE