On Mon, May 14, 2018 at 5:32 PM, Jaap Akkerhuis <jaapna at xs4all.nl> wrote:

>
>
> Thinking about this typesetter C may have been later with ditroff.
>
>
> No.
>
> What I remember, there was first roff written in assembler.  It was
> then rewrittn into C (but now with real macro capabilities.  roff
> has a lt build in), Typesetter C appeared in Edition 6.1 (of 6.2)
> since the n/troff code demanded a lot from the C-compiler.  To make
> it possible to run it on a pdp11 there was the hack turning data
> into test (for the hyphenation tables).  Ditroff was done by bwk
> to be devie independent.
>
> Regards,
>
> jaap
>
> ​Thanks -- this make sense and it the piece that I could not remember.  ​

ᐧ
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