Re: [ms] Add a standard glyph name for hooked o instead of relying on .AM?

[G. Branden Robinson]

Hi Doug,

Looks like today's my day to reply to years-old mails.

At 2021-01-03T17:26:35-0500, M Douglas McIlroy wrote:
> I like the idea of an rfc1345.tmac file, and would be happy to operate
> under the false assumption that it exists. I think it would be
> reasonable to abandon the old AT&T accent strings while we're at it,
> even though I have plenty of groff source that uses them.
> 
> Corollary 1: So that calls for abandoned strings don't just silently
> get ignored, warnings should be issued for unknown strings--preferably
> only once per distinct name.

groff has for many years issued such diagnostics when given the `-w mac`
option.  `-ww`, which turns on more-than-"all" warnings, implies it.

> Corollary 2: If Corollary 1 is adopted, then for consistency warnings
> should be issued similarly for undefined macro calls

Since the same dictionary is used for requests, strings, macros, and
diversions, `-w mac` works the same for all of these.  Regrettably, the
diagnostic itself calls them all "macros".

> and undefined escape sequences.

groff has also for many years issued such diagnostics when given the `-w
escape` option.  `-wall` implies it.

This stuff is documented in the troff(1) page.

$ printf 'hello\\= world \\*x\n' | groff -ww -z
troff:<standard input>:1: warning: ignoring escape character before '='
troff:<standard input>:1: warning: macro 'x' not defined

> Yours radically,
> Doug

I look forward to doing some radical things, but James Clark beat me to
these.

Regards,
Branden

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