Re: groff Digest, Vol 225, Issue 5

[Douglas McIlroy]

> Some of the symbols in this file are obviously copyright to AT+T

No worry. The US Supreme Court has declared (in Google LLC v Oracle)
that APIs can be freely copied. The fact that some of your defines may
look like a paraphrase of AT&T almost certainly reflects the
exculpatory fact that most reasonable people  would likely implement
the API that way regardless of whether they had seen AT&T's source.

Doug

On Tue, Jul 4, 2023 at 12:01 PM <groff-request@gnu.org> wrote:
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> Today's Topics:
>
>    1. "recently uncovered" Bell Labs Unix bibliography (Steve Izma)
>    2. EQNCHAR ... -wig for Maths Gurus (Damian McGuckin)
>    3. [TUHS] Re: symbols in eqnchar (G. Branden Robinson)
>    4. EQNCHAR on IBM AIX and ORACLE Solaris (Damian McGuckin)
>    5. Re: [TUHS] Re: symbols in eqnchar (Damian McGuckin)
>    6. Re: [TUHS] Re: symbols in eqnchar (Damian McGuckin)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 3 Jul 2023 19:03:44 -0400
> From: Steve Izma <sizma@golden.net>
> To: groff discussion list <groff@gnu.org>
> Subject: "recently uncovered" Bell Labs Unix bibliography
> Message-ID: <ZKNT0J/J9jsB+x2k@locust>
> Content-Type: text/plain; charset=utf-8
>
> Some of you might be interested in a note from today's Tex Users
> Group news:
>
>     Nelson Beebe reports a recently uncovered large Bell Labs
>     bibliography about Unix spanning 1972 to 1980.  It is
>     available at https://www.math.utah.edu/pub/tex/bib/unix.bib.
>     There is a SQLite3 version of the bibliography at
>     https://www.math.utah.edu/pub/tex/bib/unix.db.  See
>     https://www.math.utah.edu/~beebe/talks/#2009 for the
>     documentation of this format.
>
> There are numerous references to nroff and troff in it.
>
> Part of my interest in this comes from just having finished
> Brian Kernighan's "Unix: A History and a Memoir", which
> was thoroughly enjoyable to read. (Lots of good stories about
> Doug McIlroy in it, as well.)
>
>         -- Steve
>
> --
> Steve Izma
> -
> Home: 35 Locust St., Kitchener, Ontario, Canada  N2H 1W6
> E-mail: sizma@golden.net  phone: 519-745-1313
> cell (text only; not frequently checked): 519-998-2684
>
> ==
> The most erroneous stories are those we think we know best – and
> therefore never scrutinize or question.
>     -- Stephen Jay Gould, *Full House: The Spread of Excellence
>        from Plato to Darwin*, 1996
>
>
>
> ------------------------------
>
> Message: 2
> Date: Tue, 4 Jul 2023 10:51:06 +1000 (AEST)
> From: Damian McGuckin <damianm@esi.com.au>
> To: groff@gnu.org
> Subject: EQNCHAR ... -wig for Maths Gurus
> Message-ID: <3bc94646-1629-c930-cfce-8d7cf29c7c66@esi.com.au>
> Content-Type: text/plain; format=flowed; charset=US-ASCII
>
>
> .. and I fall short of that.
>
> As I read this symbol, it is a minus sign with a wiggle or tilde on top.
>
> The only copy of eqnchar that I have says this is the \(~= sign which
> is the groff \[~=] which is two tilde's, one on top of the other.
>
> I thought that -wig was supposed to be a minus sign with a tilde on top,
> what groff calls \[|=].
>
> Similarly, an equals sign with a tilde on top is what groff calls \[=~].
> We could call it =wig.
>
> Thanks - Damian
>
> Pacific Engineering Systems International ..... 20D Grose St, Glebe NSW 2037
> Ph:+61-2-8571-0847 .. Fx:+61-2-9692-9623 | unsolicited email not wanted here
> Views & opinions here are mine and not those of any past or present employer
>
>
>
> ------------------------------
>
> Message: 3
> Date: Mon, 3 Jul 2023 19:53:58 -0500
> From: "G. Branden Robinson" <g.branden.robinson@gmail.com>
> To: groff@gnu.org
> Subject: [TUHS] Re: symbols in eqnchar
> Message-ID: <20230704005358.2fm5pn2g4wnqhib2@illithid>
> Content-Type: text/plain; charset="utf-8"
>
> Forwarding Doug's response from the TUHS list to the groff list.
>
> ----- Forwarded message from Douglas McIlroy <douglas.mcilroy@dartmouth.edu> 
> -----
>
> Date: Mon, 3 Jul 2023 13:51:15 -0400
> From: Douglas McIlroy <douglas.mcilroy@dartmouth.edu>
> To: TUHS main list <tuhs@tuhs.org>
> Subject: [TUHS] Re: symbols in eqnchar
>
> > What is the name of the mathematic symbols
>
> Here are some readings, not exactly names
>
>         incl   (used with partial orderings) is included in, or is less than
>         |>      is not greater than
>         |<      is not less than
>         <wig
>         >wig
>         wig    is approximately, or asymptotically approaches
>         ~wig  is approximately
>
> Doug
>
> ----- End forwarded message -----
> -------------- next part --------------
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> ------------------------------
>
> Message: 4
> Date: Tue, 4 Jul 2023 12:31:53 +1000 (AEST)
> From: Damian McGuckin <damianm@esi.com.au>
> To: groff@gnu.org
> Subject: EQNCHAR on IBM AIX and ORACLE Solaris
> Message-ID: <49106ed7-b14b-3d44-607e-e26898d63e8a@esi.com.au>
> Content-Type: text/plain; format=flowed; charset=US-ASCII
>
>
> In case anybody has contacts there ...
>
> I noticed that
>
>         https://www.ibm.com/docs/en/aix/7.2?topic=formats-eqnchar-file-format
>
> is wrong for the definitions of
>
>         -del
> and
>         -dot
>
> Also
>         <->
>
> is both described correctly and incorrectly (as being <=>).
>
> Also
>         nomem
>
> is spelt as 'notmem' which is wrong at least according to DWB 3.3.
>
> The definitions on
>
>         https://docs.oracle.com/cd/E86824_01/html/E54776/eqnchar-5.html
>
> are badly sub-optimal for (at the very least)
>
>         =del
> and
>         <=>
>
> and others. Their original man pages probably need tweaking.
>
> Thanks - Damian
>
> Pacific Engineering Systems International ..... 20D Grose St, Glebe NSW 2037
> Ph:+61-2-8571-0847 .. Fx:+61-2-9692-9623 | unsolicited email not wanted here
> Views & opinions here are mine and not those of any past or present employer
>
>
>
> ------------------------------
>
> Message: 5
> Date: Tue, 4 Jul 2023 12:33:22 +1000 (AEST)
> From: Damian McGuckin <damianm@esi.com.au>
> To: "G. Branden Robinson" <g.branden.robinson@gmail.com>
> Cc: groff@gnu.org
> Subject: Re: [TUHS] Re: symbols in eqnchar
> Message-ID: <623054f5-e68-7d8-887c-2cc76ecbda86@esi.com.au>
> Content-Type: text/plain; charset=US-ASCII; format=flowed
>
>
> Thanks Doug.
>
> Thanks Branden.
>
> On Mon, 3 Jul 2023, G. Branden Robinson wrote:
>
> > Forwarding Doug's response from the TUHS list to the groff list.
> >
> > ----- Forwarded message from Douglas McIlroy 
> > <douglas.mcilroy@dartmouth.edu> -----
> >
> > Date: Mon, 3 Jul 2023 13:51:15 -0400
> > From: Douglas McIlroy <douglas.mcilroy@dartmouth.edu>
> > To: TUHS main list <tuhs@tuhs.org>
> > Subject: [TUHS] Re: symbols in eqnchar
> >
> >> What is the name of the mathematic symbols
> >
> > Here are some readings, not exactly names
> >
> >        incl   (used with partial orderings) is included in, or is less than
> >        |>      is not greater than
> >        |<      is not less than
> >        <wig
> >        >wig
> >        wig    is approximately, or asymptotically approaches
> >        ~wig  is approximately
>
> Thanks - Damian
>
> Pacific Engineering Systems International ..... 20D Grose St, Glebe NSW 2037
> Ph:+61-2-8571-0847 .. Fx:+61-2-9692-9623 | unsolicited email not wanted here
> Views & opinions here are mine and not those of any past or present employer
>
>
>
> ------------------------------
>
> Message: 6
> Date: Tue, 4 Jul 2023 21:07:38 +1000 (AEST)
> From: Damian McGuckin <damianm@esi.com.au>
> To: "G. Branden Robinson" <g.branden.robinson@gmail.com>
> Cc: groff@gnu.org
> Subject: Re: [TUHS] Re: symbols in eqnchar
> Message-ID: <554119e-bc4c-e01f-5046-bfdfdcc431ef@esi.com.au>
> Content-Type: text/plain; format=flowed; charset=US-ASCII
>
>
> Some of the symbols in this file are obviously copyright to AT+T
>
> Some will be groff special characters.
>
> How do I
>
> a)      grab some out of the original
>
> b)      re-write some for groff
>
> c)      bury them in tmac/eqnrc
>
> and handle the copyright notice.
>
> For now I was just going to use
>
>         defines
>
> and not a tdefine/ndefine mix.
>
> Thanks - Damian
>
> Pacific Engineering Systems International ..... 20D Grose St, Glebe NSW 2037
> Ph:+61-2-8571-0847 .. Fx:+61-2-9692-9623 | unsolicited email not wanted here
> Views & opinions here are mine and not those of any past or present employer
>
>
>
> ------------------------------
>
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>
> End of groff Digest, Vol 225, Issue 5
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