7

How can I check (using a conditional, preferably) whether an opentype math font is currently loaded (in use)? For example, using the following commands:

\usepackage{unicode-math}
\setmathfont{LucidaBrightMathOT}

I would like to check (afterwards) if that specific font was really loaded and is been used in math mode. Does fontspec, unicode-math (or luaotfload) provides such facility?

For the curious: I'm trying to correct what (I think) is a kerning problem with some accents in (some) opentype fonts with math support. For example, the picture below shows the output of $\hat\jmath$ in Lucida OpenType (available from TUG) using LuaLaTeX (or XeLaTeX):

jmath in Lucida Opentype

Which one could correct with $\skew{3}{\hat}{\jmath}$ but, unfortunately, every (problematic) font requires a different position adjustment parameter.

  • 3
    Too bad! This should be made known to the font developers. – egreg Aug 4 '16 at 19:44
  • @egreg They were notified and indeed the latest Lucida OpenType font version (v1.802) from TUG corrected those kind of problems with accents above dotless j and i. – bgeneto Apr 10 '17 at 20:34
1
  • Macro \l__um_fontname_tl holds the name of the math font. However, it is the name that was given to \setmathfont. Therefore, the same font can have several names.

  • Another way is to inspect one of the font name commands used for math. The command name also contains the font name.

Example file:

\documentclass{article}

\usepackage{unicode-math}
\setmathfont{Asana Math}

\begin{document}
  The math font is \csname l__um_fontname_tl\endcsname.

  $
    \makeatletter
    \edef\x{\the\textfont2}
    \edef\x{\expandafter\strip@prefix\meaning\x}
    \mbox{\ttfamily\x}
  $
\end{document}

Result

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.