Re: Quick question: how to do .index in groff?

[John Gardner]

You might be able to achieve this using Groff's .while, .length, and
.substring requests.

Not sure what use-case a substring's index could be in Roff though...

On Fri, 24 Jul 2020 at 09:13, B 9 <hackerb9@member.fsf.org> wrote:

> Heirloom Troff has a handy string search function called .index which
> works like this:
>
> .index R xx string
>
> The position where string occurs in xx is stored in register R.
>
> It doesn't seem to work yet in Groff, but I'm hoping somebody has a
> macro that implements .index.
>
> Thanks,
>
> --b9
>
>