Hi Guenter, this is slightly off-topic, but related to the present discussion:
there is an encoding-related problem with polytonic Greek support in Babel and LuaTeX in TexLive 2013. It is discussed in this texexchange thread: http://tex.stackexchange.com/questions/121842/polutoniko-greek-in-texlive-2013 and resulted in a babel bug submitted by Heiko Oberdiek: http://www.latex-project.org/cgi-bin/ltxbugs2html?pr=babel/4305 I was wondering if you had any thought on the problem? Cheers, Stefano
