On Tue, 18 Mar 2025 at 13:42, Mikael Sundqvist <mic...@gmail.com> wrote:
> Hi Apoorv, > > On Tue, Mar 18, 2025 at 7:17 AM Apoorv Potnis <apoorvpot...@gmail.com> > wrote: > > > > Dear Developers of LuaTeX, > > > > I am writing this mail to report a bug in the OpenType Math > specification regarding imprecise language, found by Khaled Hosny: [MATH] > The algorithm for applying MathKernInfo is incorrect · Issue #1147 · > MicrosoftDocs/typography-issues. > > > > LuaTeX follows the letter of the specification, while XeTeX follows the > intent of the specification. This has created compatibility issues for font > developers. > > > > Thank you. > > > > -- > > Apoorv Potnis > > Can you please provide an example where it is clear that the problem > is the luatex engine and not the font? That is, one example of this > situation that shows well in xetex but not in luatex. > > The reason that I ask, is that the examples I have considered so far, > where this seems to matter (r_j for example in stixtwomath in TL25), > the xetex output is not good either. I suspect that the corner kerns > are not good in the font there, and therefore ask for a reasonable > example to test this on (in TL25). > > Just seen STIX Two, v2.14 INTERIM Latest tiroj released this 18 hours ago https://github.com/stipub/stixfonts/releases/tag/v2.14 -- luigi
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