[luatex] a question about the names \Umathcharnumdef etc

[Ulrike Fischer]

Am Thu, 15 Oct 2015 18:18:58 +0100 schrieb David Carlisle:

>> or perhaps \Umathcharnumdef was always ok ?
> 
> yes, it was, the Umath... commands were always available with their
> basic luatex names and also prefixed luatex.

That's not true. In a texlive 2012

\documentclass{article}

\begin{document}
\show\Umathcharnumdef
\show\luatexUmathcharnumdef
\end{document}

gives

> \Umathcharnumdef=undefined.
l.36 \show\Umathcharnumdef

?
> \luatexUmathcharnumdef=\Umathcharnumdef.
l.37 \show\luatexUmathcharnumdef

>From 2013 on both are defined, in texlive 2015 and miktex only
\Umathcharnumdef is defined. In the case of miktex I have no means
to check how older lualatex.ini handled it.

-- 
Ulrike Fischer 
http://www.troubleshooting-tex.de/