[restricting list CC to just groff@gnu, 'cause TUHS seems to be
discarding everything from everyone in this thread[1]]

Hi Dan,

At 2025-09-27T14:59:00-0400, Dan Plassche wrote:
> I do not see lq and rq defined when looking at dwb 2 on an 
> emulated 3b2.  The /usr/lib/macro/an file is version 1.45 
> copyrighted 1984.

Ahh.  This answers the question--thank you!

Is there a publicly available source for DWB 2.0?

> On Sat, 20 Sep 2025, G. Branden Robinson wrote:
> > That's why I ask about DWB 2.0 specifically; given its date (1984),
> > the presence of the string definitions there would represent a
> > significantly earlier (five years' worth) convergence, in this
> > respect, for shared support between AT&T and BSD Unices.  Also, we
> > have evidence that DWB 2.0 got sublicensed out--I think the
> > un-distributable Berkeley troff was based on it, as was SoftQuad
> > troff.  Maybe others, like eroff, were too.
> 
> Softquad and eroff were based on dwb 2.

Thanks for the confirmation!

> The BSD ditroff appears to be from research v8 in 1985 based on the
> SCCS commits.

Hmm, intriguing!  Do you know where I can get at this source?  Is it in
Kirk McKusick's CD-ROMs?

I'm curious to know if it has:

1.  the `lq` and `rq` string definitions; and/or
2.  the following Eighth Edition macros documented in its man(7):
    a.  XE
    b.  1C
    c.  2C

(I finally got my printed original Eighth Edition manual out of storage
in Australia![2]  Happy days for my historical research.)

Regards,
Branden

[1] https://www.tuhs.org/pipermail/tuhs/2025-September/date.html
[2] Also "Vi Command & Function Reference", by Alan P.W. Hewett,
    "Revised for version 2.12 by Mark Horton", dated September 10, 1981.

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