Re: [Groff] .if !dTS - GNU extension?

[Ingo Schwarze]

Hi Ralph,

Ralph Corderoy wrote on Thu, Apr 28, 2016 at 06:34:08PM +0100:
> Ingo Schwarze wrote:

>> Then inside less(1), type
>>
>>   :t read

> Does that use less's LESSGLOBALTAGS environment variable to look
> up the tag?

No.  The formatter uses the semantic markup to write a /tmp file
in ctags(1) format on the fly while formatting, paying attention
how the user's terminal width affects line numbers, and the man(1)
steering program invokes less(1) with the -T option.  No environment
variables are involved.

What is relevant in the present context is that the mdoc(7)
format, which comes from the groff(1) world, supports that
kind of indexing.

Yours,
  Ingo