Ho humm, At 2022-03-25T09:17:59+0000, Humm wrote: > Quoth G. Branden Robinson: > > As far as I know, groff innovated these character definitions, and my > > hat's off to James Clark for doing so. Lacking them for so long strikes > > me as...blinkered. > > When was that? In the git commit messages I see it in 2000.
It appears the history of the two neutral quote-like glyphs is split in groff's history. \(aq shows up in groff-1.06 (1992-09-01), and is apparently James Clark's work. On the ps device, it maps to the "quotesingle" glyph. https://git.savannah.gnu.org/cgit/groff.git/commit/?id=b04d345ed2d875a6ae26b95e97e0d8e91c4e3886 Regarding \(dq, you are correct. It shows up in the following commits. commit 99c93699043100a1b83e4dce7a0c498a1ca42952 Author: Werner LEMBERG <w...@gnu.org> Date: Thu May 4 07:44:39 2000 +0000 Adding `dq' (PS name `quotedbl') glyph name as an alias for `"'. * fonts/*/*: Implement it. * man/groff_char.man, NEWS: Document it. commit 21175b7f38a1ef12626db0793db85b8d4b089625 Author: Werner LEMBERG <w...@gnu.org> Date: Thu May 4 07:39:12 2000 +0000 * DviChar.c: Adding `dq' as an alias for `"' in latin-1 map. So my thanks go to both James and Werner for doing what no 1980s troff would. > \(dq appears in the first edition of Plan 9 in the devutf device. The > files are dated 1993-01-04. Thank you for clarifying. I don't have any Plan 9 source artifacts from that far back; I use "n-t-roff"'s GitHub repository, for which the first commit is dated 12 October 2014. A cursory Google search did not turn up downloadable source archives of any release prior to the fourth edition, though it appears there should be no legal impediment to their distribution[1]. Regards, Branden [1] https://marc.info/?l=9fans&m=161650489113326
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