[NTG-context] oldstyle numerals in STIX Two Math

[Henning Hraban Ramm]

> Am 21.10.2020 um 15:59 schrieb Alan Bowen <bowenalan03 at gmail.com>:
> 
> I am trying to get the STIX Two fonts to display oldstyle numerals. 
> 
> I have the oldstyle numerals in STIX Two Text, the problem is the math font.
> 
> So far, my mwe is:
> \definefontfamily[mainface][rm][STIX Two Text][] %onum=yes does not seem to work
> \definefontfamily[mainface][mm][STIX Two Math][]
> \definefontfeature[f:oldstyle][onum=yes]
> 
> \setupbodyfont[mainface, 18pt]
> \addfeature{f:oldstyle}
> 
> \starttext
> 123456789
> \blank[big]
> $\sqrt{2} + 1234$
> \stoptext
> 
> Any pointers will be greatly appreciated.

mtxrun --script fonts --list --info stixtwomath

shows that STIX Two Math doesn’t provide the onum feature.

Hraban