+1 for updating to the latest file from time to time. After http://unicode.org/cldr/trac/ticket/11383 makes it into a new release, our special_cases() function will have just the two Cyrillic characters, which should almost certainly be handled by adding Cyrillic to the ranges we handle via the usual code path, and DEGREE CELSIUS and DEGREE FAHRENHEIT. Those degree signs could possibly be extracted from Unicode.txt (or we could just forget about them), and then we could drop special_cases().
Well, when I modified the code to handle the new version of the transliteration file, I discovered that was sufficient to handle the old version as well. That's not the way things usually go, but I'll take it. ;-)
I've attached two patches, one to update generate_unaccent_rules.py, and another that updates unaccent.rules from the v34 transliteration file. I'll be happy to add these to the CF. Does anyone need to review them and give me approval before I do so?
