Re: [TUHS] Re: Original print of V7 manual? / My own version of troff

[Lennart Jablonka]

Quoth G. Branden Robinson:
> > I went ahead and write a little C/A/T-to-later-troff-output converter in
> > v7-friendly and C89-conforming C:
> >
> > https://git.sr.ht/~humm/catdit
>
> This is an exciting prospect but I can't actually see anything there.
>
> I get an error.
>
> "401 Unauthorized
>
> You don't have the necessary permissions to access this page. Index"

Oh no!  I did set the repository to “public,” but I guess part of 
the aftermath of the recent events involving a large DDoS on 
SourceHut is that that setting wasn’t applied.  Nonetheless, 
SourceHut is an awesome platform.

I re-set the visibility to “public.”  Now you are able to see the 
repo.

> > and the character codes emitted are still those of the C/A/T,
> > resulting in the wrong glyphs being used.
>
> The codes should probably be remapped by default, with a command-line
> option to restore the original ones.  I would of course recommend
> writing out 'C' commands with groff special character names.

The C instruction exists in AT&T troff, just not for names longer 
(or shorter?) than two characters.  I’d rather not depend on 
groff.  But yes, for such a remapping, I’ll probably use the c and 
C instructions.

> > PS: Branden, for rougher results, if you happen to have a Tektronix
> > 4014 at hand (like the one emulated by XTerm), you can use that to
> > look at v7 troff’s output.  Tell your SIMH to pass control bytes
> > through and run troff -t | tc.
>
> I'd love to, just please make your repo available to the public.  :)

For that, you don’t need my repo.  Set up your v7 system.  Attach 
some serial lines (dc in your kernel config, the lines in 
/etc/ttys, the dci device of SIMH).  Let SIMH pass control 
characters through (`set dco0 7b`).  Connect via telnet or 
whatever from an XTerm and switch to Tektronix 4014 mode.  Use 
tc(1) to your heart’s content.  It won’t be pretty, but the line 
breaks will match.