Am 12.07.2011 13:41, schrieb Ulrike Fischer:
Am Sat, 9 Jul 2011 18:35:50 +0200 schrieb Philipp Stephani:
A short update on this: while we can fix this on the
lualatex-math/unicode-math end (see the discussion at GitHub), it
is only a symptom of a deeper problem, namely that the \mathcode,
\mathchardef, \delcode, \radical etc. primitives are deprecated
with LuaTeX since they (unlike \char etc.) can't easily be
extended to allow Unicode code points.
If \mathcode is deprecated with luatex then why does
unicode-math/\setmathfont change the mathcode of the dot at all?
Because it uses a different family than LaTeX does. The math code itself
still exists (as class, family, code point triple), but the \mathcode
primitive can't be used any more to access math codes once one of the
new primitives (\Umathcode etc.) has been used. Therefore I think
\mathcode should not be used at all.
> And
why does it change it to a much higher (and so invalid) value than
it is done with xetex?
Probably the internal representation of math codes is different in XeTeX
and LuaTeX.
