[XeTeX] Minion Pro Sylistic Alternates in Win32 XeTeX

[Adam Twardoch]

Jonathan,

this brings me to the question: does XeTeX offer a way to preserve 
kerning across text runs where a different OpenType Layout feature is 
activated? For example, if I choose to typeset arbitrary slash fractions 
by switching on the "numr" (numerators) feature to a run of digits, then 
type a fraction bar and then another run of digits with the "dnom" 
(denominators) applied. When there are kerning pairs defined in the font 
between the numerator glyphs and the fraction, or between the fraction 
and the denominator glyphs -- is there a way that those kerning pairs 
are correctly applied in XeTeX? A similar case would be if I choose to 
apply the "sups" (superscripts) or "sinf" (scientific inferiors) feature 
to a set of letters that immediately follow some normal letters, and 
there are kerning pairs defined between the normal and the superscript 
or inferior glyphs. Another example would be if I typeset an 
all-uppercase headline and choose to apply the "swsh" (swash) feature to 
one of the letters.

What would be the best way to do it, if it is at all possible?

Best,
Adam