DWB and Plan 9 troff relationship (was: Potential bug in sv geometry)

"G. Branden Robinson" <[email protected]> Sun, 23 Nov 2025 15:41:45 -0600

Newsgroups	gmane.comp.printing.groff.general
Message-ID	<20251123214145.yv3j3objxokfoz25@illithid>

At 2025-11-23T22:13:29+0100, onf wrote:
> Also note that Plan 9 troff is a direct descendant of DWB troff

I thought this too for a while, but it is not true, at least of the
versions of these software projects that are available to us.

DWB troff and Plan 9 troff diverged.  The differing feature sets of
their tbl(1)s suffices to prove this point.

https://lists.gnu.org/archive/html/groff-commit/2025-10/msg00131.html

https://github.com/9fans/plan9port/tree/master/src/cmd/tbl
https://github.com/n-t-roff/DWB3.3/tree/master/text/tbl

Regards,
Branden

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