Hi Damian,
> > Sadly, I was under the 35 year impression you could. But in my
> > letterhead where I use
> >
> > .ti +5i
> >
> > to offset the date, I realised nroff/groff(tty) and troff/groff(a4)
> > are only approximately correct.
I agree with Larry. It's easy to see that groff's PostScript output
spaces the two `|' five inches of 72 points per inch apart.
$ groff >t.ps
|
.ti +5i
|
$ grep /F0 t.ps
/F0 10/Times-Roman@0 SF(|)72 12 Q(|)432 24 Q 0 Cg EP
$ expr 432 - 72
360
$ expr 5 \* 72
360
nroff here is doing that at 10 characters per inch, or 10 "pitch", as
we'd expect from a typewriter.
Cheers, Ralph.
