Modifying fonts for ReX

This assumes that the font is an OpenType math font with a Math table.

• Run python3 rexify.py on the font. This will:

  • Place inacessible glyphs in a CMAP table.
  • Generate glyph metrics for each glyph required for ReX.

• Open FontForge, and re-encode to ISO 10646-1 (Unicode, Full). This will modify the glyph indices, optimzing the CMAP tables.

• Do codegen.

Open issues

Some work that sitll needs to be done:

• Generate a whitelist of symbols needed for ReX. This would require keeping track of all the glyphs required in the variants table.