> It looks as though two strong Unicode encoding candidates for TeX/LaTeX are > the UTF-8 and UTF-32. The UTF-32 encoding might be better to used > internally for performance and programming convenience reasons. The UTF-8 > encoding is better to work with as an extension of ASCII. So one might make > a TeX version that say uses UTF-32 internally, and UTF-8 and UTF-32 > externally. ExTeX use internal UTF-32! by Michael