[lltx] LuaLaTeX and the unicode-math package

[Khaled Hosny]

On Wed, May 23, 2012 at 10:49:30AM +0200, Andrea del Monaco wrote:
> 
>     Accent placement is controlled by the font, to change it (e.g. when
>     using a font that is not an OpenType math font) you might want to
>     "patch" the font on the fly, but that is even much lower level.
> 
>  
> And how can I do that on the fly? I'd like to learn this technique...
> 
> Well, now that I'm thinking about it, maybe this method can solve another
> annoying issue: the interword spacing and the kerning.
> I've noticed that kerning blows up when switching from a shape to another (of
> the same font, of course).
> And even more: for example the space between a closing parentheses/bracket and
> an italic letter (say italic "T") is not properly adjusted. As a result, the
> two glyphs appear as glued togheter.
> The same occurs for calligraphic letters, or greek letters... It looks like
> unicode-math is not able to handle the kerning when switching from a mode/shape
> to another.

May be it would be simpler if you told us what you are trying to achieve
here, using a regular font for math is just asking for trouble, there
are too many issues you need to work around before you get decent
output.

>     Anyway,
>     the default is to center the accent on the glyph box, are you getting
>     something different?
> 
>  yep: the accents aren't on the center.
> Sometimes they aren't even "on" the glyph, but totally outside of it.

An example file would help.

Regards,
 Khaled