Am Mon, 9 Nov 2015 14:22:45 +0100 schrieb Hans Hagen:
>> Yes, one workaround is to quit math mode. The other to use fonts in
>> mode "base". But I would like to understand why workarounds are
>> needed at all.
> because opentype math fonts are just math fonts (simple for text, rich
> for math)
But there is no math font involved. This latex example
\documentclass{article}
\usepackage{fontspec}
\begin{document}
VA $\mathrm{VA}$
\end{document}
uses exactly one font:
<d:/texlive/2015/texmf-dist/fonts/opentype/public/lm/lmroman10-regular.otf>
But outside math it is kerned, inside not.
And this plain tex example doesn't use math fonts either.
\input luaotfload.sty
\font\Urm=Arial:mode=node;script=latn;language=DFLT;+tlig;+trep;
\textfont0\Urm
\Urm VA $\fam0 VA$ %no kerning in math
\font\Urmbase=Arial:mode=base;script=latn;language=DFLT;+tlig;+trep;
\textfont0\Urmbase
\Urm VA $\fam0 VA$ %kerning in math
\bye
(I used Arial so that one can see clearly that a text font is used)
--
Ulrike Fischer
http://www.troubleshooting-tex.de/
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