Re: Doubts about a typo fix

[G. Branden Robinson]

Hi Lennart,

At 2022-12-25T22:07:01+0000, Lennart Jablonka wrote:
> Quoth G. Branden Robinson:
> > > > I believe Solaris troff to be fossilized
> > > 
> > > Yes and no. Solaris 10 is no longer supported after January 2024,
> > > so if it and all the other traditional troffs die out by 2024 we
> > > can stop worrying about this then.
> > 
> > That may in fact prove out; the only _currently-maintained_ troffs I
> > know of are groff, Heirloom Doctools troff (though it has slowed
> > down) and neatroff.
> 
> I am devastated that 9front troff is unhesitatingly disregarded again
> and again like this.  While it’s seeing few commits, it is serving us
> very well.

I apologize for forgetting; I shouldn't have, as I corresponded
fruitfully with Russ Cox regarding 9front man(7)'s `MR` macro, and
submitted a patch for (rudimentary) `\~` escape sequence support in P9US
troff, which Dan Cross merged swiftly.

> Nope, not all traditional troffs will die that easily.

I have gone out of my way to document traits of Plan 9{, from User
Space} troff in groff's documentation where the discussion warrants.

ChangeLog:      origin in Plan 9 troff.  [style] Add examples of use.
ChangeLog:      and, per Ingo Schwarze, Plan 9 troff.  (It is, however, not
NEWS:  Plan 9 from User Space's troff in August 2020.  Its purpose is to
NEWS:  vary the line length freely (DWB troff, Solaris troff, Plan 9 troff)
doc/groff.texi:characters' length.  Also, Plan@tie{}9 @code{troff} allows tabs 
to
doc/groff.texi:@cindex @code{.S} register, Plan@tie{}9 alias for @code{.tabs}
doc/groff.texi:@cindex @code{.tabs} register, Plan@tie{}9 alias (@code{.S})
doc/groff.texi:argument to the @code{ta} request.@footnote{Plan@tie{}9 
@code{troff}
doc/groff.texi:1c6ab0f6e, 2016-09-13), and Plan@tie{}9 from User Space 
@code{troff}
doc/groff.texi:Plan@tie{}9 @code{troff} all support it.} but valid values are 
specific
doc/groff.texi:files.@footnote{Plan@tie{}9 @code{troff} has also abandoned the 
binary
man/groff.7.man:.\" request or macro name of two characters' length.  Also, 
Plan@tie{}9
man/groff_diff.7.man:and Plan\~9
man/groff_diff.7.man:and Plan\~9 from User Space
man/groff_diff.7.man:.I troff \" Plan 9
man/groff_font.5.man:(Plan\~9
man/groff_font.5.man:.I troff \" Plan 9
tmac/groff_man.7.man.in:those containing space \" or tab (in Plan 9 troff 
[only?])
tmac/groff_man.7.man.in:or Plan\~9
tmac/groff_man.7.man.in:Plan\~9,
tmac/groff_man.7.man.in:Plan\~9,
tmac/groff_man.7.man.in:Plan\~9,
tmac/groff_man.7.man.in:Plan\~9 from User Space's
tmac/groff_man.7.man.in:.BR \(rs(rg , \" Heirloom Doctools, mandoc, neatmkfn, 
Plan 9, Solaris
tmac/groff_man.7.man.in:.BR \(rs(lq , \" Heirloom Doctools, mandoc, neatmkfn, 
Plan 9
tmac/groff_man.7.man.in:.BR \(rs(rq , \" Heirloom Doctools, mandoc, neatmkfn, 
Plan 9
tmac/groff_man.7.man.in:.B \(rs(tm \" Heirloom Doctools, mandoc, neatmkfn, Plan 
9
tmac/groff_man.7.man.in:but not by Plan\~9,
tmac/groff_man.7.man.in:.IR troff s. \" Plan 9, Solaris, DWB
tmac/groff_man.7.man.in:Plan\~9 from User Space
tmac/groff_man.7.man.in:.I troff \" Plan 9
tmac/groff_man.7.man.in:like Plan\~9 or Solaris
tmac/groff_man.7.man.in:.IR troff , \" Plan 9, Solaris
tmac/groff_man.7.man.in:Plan\~9 from User Space's

That's from groff Git (actually my working copy).  Compare to groff
1.22.3, before I started contributing.

config.guess:    *:Plan9:*:*)
doc/groff.texinfo:spaces.@footnote{Plan@tie{}9's @code{troff} implementation 
also allows
doc/groff.texinfo:@cindex @code{.S} register, Plan@tie{}9 alias for @code{.tabs}
doc/groff.texinfo:@cindex @code{.tabs} register, Plan@tie{}9 alias (@code{.S})
doc/groff.texinfo:The @code{troff} version of the Plan@tie{}9 operating system 
uses
doc/groff.texinfo:files.@footnote{Plan@tie{}9 @code{troff} has also abandoned 
the binary
man/roff.man:roff tools found in the OpenSolaris and Plan\~9 operating systems, 
now
man/roff.man:Plan 9
man/roff.man:The Plan\~9 operating system
src/libs/gnulib/build-aux/config.guess:    *:Plan9:*:*)

I'll try not to forget again.

Live long and prosper,
Branden

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