Hello
The XeTeX manual says that \Udelcodenum sets or return packet
information about family/slot of the \Udelcode data. It seems that it
doesn't work in LuaTeX:
\chardef\lx="027E8
\Udelcode\lx=1 "027E8
\the\Udelcodenum\lx % prints 42893312, i.e. "28E8000
\Udelcodenum\lx=\Udelcodenum\lx
\the\Udelcodenum\lx % prints -381681664
\bye
The slot code "027E8 is mixed with 01 family and \Udelocodenum returns
"28E8000. Of course, if I set new Udelcode data using
\Udelcodenum\lx=\Udelcodenum\lx then I get totally bad result.
On the other hand, XeTeX runing on the same testing file prints in both
cases 1075849192, i.e "402027E8. The slot code "027E8 isn't mixed with
the family number.
Petr Olsak
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