Similar to the question:
I have several ornamental fonts and I'd like to create key maps. That is, I want to know what symbol the letter
a maps to by having a nice table. The problem is, many of these fonts don't include all the characters and I don't know, a priori, which ones are included. I'd rather not have a mess of empty boxes filling up the table. Is it possible to iterate through the valid characters in a font and just display them? Any (Lua, Con, Xe, La, etc...)-Tex solution is welcome.