On 6/29/2015 10:57 PM, David Carlisle wrote:
etex and xetex can not use registers higher than 256 with \insert, however
the following plain tex works without error with luatex
\mathchardef\footins=1000
qqq\footnote{1}{zzz}
\bye
Can this be relied on, and luatex will accept the full box register
range with \insert?
sure
If so could \insert be added to the manual in section 2.4 where \box \count etc
are listed as accepting 16-bit numbers,
Thanks
David
(It would be nice to avoid the ugly \reserveinserts trick used with etex to
preserve space for inserts below 256, but I'm wary of using
undocumented features)
you can use a different \outputbox
Hans
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