(Sent from my phone.)

On 13/07/2011, at 0:39, Taco Hoekwater <[email protected]> wrote:

Actually, that does not mean I think it is a good idea. The
conceptual problem is that \XeTeXmathcodenum (and therefore
also \Umathcodenum) can return a signed int to represent an
unsigned value, with is pretty horrible.

An alternate from the TeX point of view could be to add commands like

\Umathclass
\Umathfam
\Umathslot

to extract the relevant bits of information to pass to a subsequent \Umathchardef, say.

Not sure if that's something you've considered before, though.

W

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