On 03/08/2013 08:31 PM, Florêncio Neves wrote:
Hi,
I understand how to create a glyph node containing a character
specified by its Unicode number (by saying “node.new("glyph")” and
setting its “char” field). Now, is it possible (or going to be
possible eventually) to create a node containing a glyph that lives in
the font's private area and therefore has no Unicode?
Looking into, say, the TG Pagella Math font, I see that its
\rightarrow has an extensible variant, whose right extreme is a
component named “arrowright.rt”, and I would like to insert this glyph
in a document.
It depends on how the macro package loads the font glyphs that do
not have a Unicode slot.
ConTeXt, for example, loads such glyphs in the PUA slots and maintains
a lua table that maps glyph names to slot indices. That allows one
to write
\fontchar{arrowright.rt}
in the input stream. In the end, that simply produces a glyph node
with a char value somewhere in the PUA.
Best wishes,
Taco
