A few weeks ago, I looked at Context, because I wanted utf-8 hyphenation patterns for ancient Greek, but then I saw that the patterns shipped with Context have serious bugs. I had hoped to patch ctxtools, but the required changes went beyond my knowledge of Ruby. I recently posted a Perl script to the xetex mailing list that should perform the conversion to utf-8 correctly. I would be happy to modify the script to make the output more useful to Context users, but I don't use Context myself. Feedback is welcome. The essential problem with the patterns shipped with Context is that it is the result of a simple conversion, but the hyphenation rules in Greek are based on the definition of vowels and consonants, which changes in utf-8. The original 8-bit patterns of Dimitrios Filippou depend on the fact that in the Babel encoding accents come before the vowel (except for iota subscript), whereas in Unicode they are either combined with the vowel or come after it, depending on whether you use precomposed characters or not. -- Peter Heslin (http://www.dur.ac.uk/p.j.heslin)