[bug #64459] [ms] subscripting does not work

[G. Branden Robinson]

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

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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?


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