Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site brl-tgr.ARPA Path: utzoo!watmath!clyde!cbosgd!cbdkc1!desoto!packard!edsel!bentley!hoxna!houxm!mhuxj!mhuxr!ulysses!allegra!bellcore!decvax!genrad!teddy!panda!talcott!harvard!seismo!brl-tgr!tgr!gwyn@BRL-VLD.ARPA From: Doug Gwyn (VLD/VMB)Newsgroups: net.unix Subject: Re: Questions about dev. ind. troff Message-ID: <7037@brl-tgr.ARPA> Date: Sun, 6-Jan-85 12:19:26 EST Article-I.D.: brl-tgr.7037 Posted: Sun Jan 6 12:19:26 1985 Date-Received: Tue, 8-Jan-85 03:46:37 EST Sender: news@brl-tgr.ARPA Organization: Ballistic Research Lab Lines: 36 Device-Independent TROFF is a rewrite of TROFF to improve support for a wider variety of typesetters; it was done by Brian Kernighan some time ago and is distributed in two forms: Typesetter-Independent TROFF package from AT&T Bell Labs (The original packaging; includes tbl/eqn/refer/ideal/pic/-ms) Documenter's WorkBench from AT&T Software Sales & Marketing (Essentially the same TITROFF with a different complement of typesetter filters, minus refer/ideal/-ms, adapted for UNIX System V) TITROFF is (or was) available directly from Bell Labs, unsupported. DWB is available from AT&T, supported (you will probably need to work on the device filter for your particular typesetter, though). Either requires a separate license. AT&T was including DWB V1.0 "free" as part of upgrades from UNIX System V Release 1 to UNIX System V Release 2.0 until April 1984. The combination of TITROFF & DWB includes support for the following typesetters: C/A/T (needs work) Canon Imagen Imprint-10 APS-5 Mergenthaler Linotron-202 The font tables are stored external to TROFF and can be edited without TROFF source (I am not sure how suitable a binary DWB license is for this). DITROFF output is ASCII and it is not too hard to write a device filter IF you have the source for a good one on hand to use as a guide. The DWB device filters are, if anything, excessively commented so one could hardly go wrong working from one of those. Apart from supporting a wider range of fonts and so forth, the most notable functional addition to TROFF accomplished by DITROFF is a set of graphic typesetter primitives, along with the "pic" diagram preprocessor.