From mboxrd@z Thu Jan 1 00:00:00 1970 From: arnold@skeeve.com (arnold@skeeve.com) Date: Mon, 14 May 2018 09:33:50 -0600 Subject: [TUHS] Who used *ROFF? In-Reply-To: <6447802C-34AD-4F73-ACBC-8C14D9500306@ccc.com> References: <201805141219.w4ECJo5G030533@coolidge.cs.Dartmouth.EDU> <6447802C-34AD-4F73-ACBC-8C14D9500306@ccc.com> Message-ID: <201805141533.w4EFXohE005568@freefriends.org> You may be right. It seems to be shortly after the '78 release of V7. For the full story on ditroff, see Brian's papers on it at http://www.cs.princeton.edu/~bwk/202/index.html . They are fascinating (and fun!) reading. Arnold Clem cole wrote: > Thinking about this typesetter C may have been later with ditroff. > > Sent from my PDP-7 Running UNIX V0 expect things to be almost but not quite. > > > On May 14, 2018, at 10:45 AM, Clem cole wrote: > > > > Runoff from other systems begat Unix roff. Which begat new roff - aka nroff. both assume an ASR 37 as the output device. When the first typesetter was procured typesetter roff aka troff, was born which assumes the C/A/T as the output device (which is a binary format). This is also were typesetter C comes from. Note these are 3 separate and different programs although nroff and troff mostly take the same input language. These were included in V5/6/7 IIRC > > > > > > > > When newer typesetters were obtained and after the death of troff???s author, Brian rewrote the nroff/troff package to create ditroff- device independent typesetter roff which also could support ASCII output nroff style > > > > This version was released independently of the OS and took a separate license. > > > > Ditroff was reimplemented by Clark (IIRC) to create today???s groff which takes mostly a superset of the ditroff input language. > > > > Sent from my PDP-7 Running UNIX V0 expect things to be almost but not quite. > > > >>> On May 14, 2018, at 8:41 AM, Dave Horsfall wrote: > >>> > >>> On Mon, 14 May 2018, Doug McIlroy wrote: > >>> > >>> Here's part of the story. > >> > >> [...] > >> > >> You mentioned "nroff" a few times; would it not have been "troff" for their C/A/T photo-typesetter? At least, that was the lore that I heard... > >> > >> And what was "C/A/T" anyway (assuming that my memory is not failing me)? > >> > >> -- Dave