David M. Jones

Incorrect math kerning algorithm

A char_node can only hold characters from 8-bit fonts; text from native fonts such as OpenType fonts are stored in either a native_word_node or a glyph_node, which are subtypes of the whatsit_node, distinguished by subtypes of 40 and 42, respectively. One would need a \lastnodesubtype to identify those. That might be a desirable extension.

Improvements to sub/superscript positioning in OpenType fonts

I had the same problem on Ubuntu 16.04 LTS with automake 1.15 and found a workaround...

Incorrect rendering of Vedic Sanskrit accents