As my very fragile nth edition photocopy shows, the original Western Electric copies are not troff'ed and run through a typesetter because John (like most of us at the time) did not have access to one (and Tom Ferrin had not yet done the vcat(1) hack at UCSF). Lions used standard nroff output - (in this case, originally to 132 column line printer paper I believe).

FWIW: [I would check with one of his former students who might know for sure], but I was under the impression he used the 5th/6th edition version of the Mike Lesk Macro's (-ms) that were around with nroff at the time. I don't remember how underlining was done in the book, because raw nroff generated ASR37 codes native, and the ul(1) program would not get a wide release until after BSD [but it is probable that other folks did something similar too]. Again, I've forgotten how this all worked, but sadly there was a time when I used it every day ;-) IIRC early nroff may have had a switch to generate line printer codes instead.

Also, the 'memorandum macros' (-mm) came out of Whippany, and I believe were first released with PWB. They may have been included with the typesetter C release too, but I don't think they are part of V7. Eric's UCB thesis macros, (-me) show up with one of the BSDs releases.

It's funny, I used -ms first then got really hot for -mm because they could do things like Lists better and used them until I went to UCB. But after doing my thesis I went back to the simplicity of Lesk's macros, but carry a couple of extra (like Lists) in my personal front end.

Like Larry, troff/nroff still my preferred way to do a large document with chapters

Clem.

On Thu, Apr 11, 2019 at 12:58 AM Fabio Scotoni <fabio@esse.ch> wrote:

On 4/11/19 1:19 AM, Bakul Shah wrote:
> On Apr 10, 2019, at 3:24 PM, Clem Cole <clemc@ccc.com> wrote:
>>
>> [...] is the Lions book including PS and PDF and in the original troff thankfully.
>
> Sorry to disappoint you but it's the same LaTeX source.
>
>> [Why someone would convert it to tex is a little beyond me].
>
>
> May be someone will be inspired enough to convert this to troff?
>
>

Not to be too negative, but converting it to troff would be somewhat of
an effort; however, the gains for that seem to be comparatively small.
It would be a change from one language to another, neither of which are
a 1:1 copy of the original.
Even if you had the original troff sources of the book,
groff, heirloom-troff and Plan9 ditroff probably all have line breaking
and character positioning algorithms that don't match the original troff
at the time.

If someone were to undertake this troff endeavor, aiming for a perfect
recreation would be the most beneficial (yet also most difficult) thing
to do.
I've never seen the original commentary, but I'll assume that it used a
homebrewed set of macros.
Thus, the first step would be to reverse engineer the troff macros used
to typeset the book.
Then the TeX sources would need to be converted to those troff macros;
this can possibly be automated entirely.
Then the matching version of troff would need to be used to typeset it
(likely via apout and V6 or V7 troff).
Finally, the C/A/T typesetter output would need to be converted to
PostScript or PDF (either Adobe's psroff or Chris Lewis's psroff from
comp.unix.sources can likely help with that; I got Lewis's psroff to
work a while ago, but it's pretty brittle).