[lucida] lucida-amsmath.tex for Lucida OpenType fonts?

[Bruno Voisin]

> On 6 Aug 2017, at 21:07, John H Lienhard <lienhard at mit.edu> wrote:
> 
> The code you sent, and also the file from Herbert Voss, both work very conveniently for immediate use under XeTeX using some other math code. 
> 
> However I also get the error you mention using these approaches on lucida-amsmath.tex under XeLaTeX:
> 
>         ! Internal error: bad native font flag in `map_char_to_glyph’
> 
> The error goes away when I remove "\wh” from the following line of the file:  
> 
>         \wh{\mathbf{K}}(i|i),\qquad i=1,\dots,n. 
> 
> ( \wh is shorthand for \widehat in the lucida-amsmath code: \newcommand{\wh}{\widehat}.)
> 
> This is under the most recent release of the OT fonts and of Texlive. Of course, I have no idea why this error occurs! 

The error isn't specific to Lucida, and occurs whenever a math accent is applied to an old-style math alphabet command like \mathbf (and XeLaTeX is used). With new-style commands like \symbf (or LuaLateX), there's no problem.

I've just filed an issue at <https://github.com/wspr/unicode-math/issues/400>.

Bruno