Fantastic, you are a magician. It works! I would like to thank the GNU
Groff community for this immediate and comprehensive help. Excellent!

Am So., 23. Juli 2023 um 18:06 Uhr schrieb G. Branden Robinson <
invalid.nore...@gnu.org>:

> Update of bug #64459 (project groff):
>
>                 Category:                 General => Macro ms
>
>                   Status:                    None => Need Info
>
>              Assigned to:                    None => gbranden
>
>                  Summary: Subscripting does not work. => [ms] subscripting
> does not work
>
>     _______________________________________________________
>
> Follow-up Comment #2:
>
> Hi Roland,
>
> [comment #0 original submission:]
> > Hello, the GNU troff manual defines under 4.6.5.5 "Typeface and
> decoration"
> subscripting as follows:
> > String: \*[<]
> > String: \*[>]
> > However, does not work on my PC.
> > Any advice?
> > I am using groff version 1.22.4 with Raspberry Pi.
>
> You appear to be reading the GNU troff manual corresponding to the _groff_
> 1.23.0 release.
>
> Subscripting strings are a new feature of _groff ms_ in 1.23.
>
> Also see:
>
> https://git.savannah.gnu.org/cgit/groff.git/tree/NEWS?h=1.23.0#n457
>
>
> o The s (ms) macro package has added strings, `<` and `>`, to perform
>   subscripting.  They work analogously to the `{` and `}` superscripting
>   strings that have been present in groff ms since 1991 or earlier.
>
>
> Please upgrade to _groff_ 1.23.0 to get the benefit of this feature.
>
> If that is infeasible, you can copy the definitions of these strings into
> your
> document until 1.23.0 is available to you.
>
> https://git.savannah.gnu.org/cgit/groff.git/tree/tmac/s.tmac?h=1.23.0#n1621
>
>
> .\" subscript
> .ds par@sub-start \v'+.3m\s'\En[.s]*7u/10u'-.1m'
> .als < par@sub-start
> .ds par@sub-end \v'+.1m\s0-.3m'
> .als > par@sub-end
>
>
> Does this help?
>
>
>     _______________________________________________________
>
> Reply to this item at:
>
>   <https://savannah.gnu.org/bugs/?64459>
>
> _______________________________________________
> Message sent via Savannah
> https://savannah.gnu.org/
>
>

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