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From: Larry McVoy <lm@mcvoy.com>
To: Greg 'groggy' Lehey <grog@lemis.com>
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Subject: Re: [TUHS] TeX and groff (was: roff(7))
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On Sat, Jan 01, 2022 at 11:56:05AM +1100, Greg 'groggy' Lehey wrote:
> > The only negative reaction was table of contents complaints, LaTex is
> > 2 pass so it can do them, roff is one pass so you have to fiddle with
> > things.  A lot.
> 
> I solved that issue in later documents with two passes in the Makefile
> targets, frobbing things like references and contents in between.

I was troff friends with W Richard Stevens, he shared with me a lot of
what he did in troff.  He did the two pass thing.  Nice guy and got as
much out of roff that anyone could, all of his books were troff.