Resending my earlier reply. Apparently, by default, Gmail sends subject lines in KOI8-R if they contain Cyrillic, and unicode.org rejects those as likely spam. I just changed my Gmail settings to "Use Unicode (UTF-8) encoding for outgoing messages" and hope this goes through. (*Please change the subject line* if you want to discuss *this* issue.)
My earlier reply was: Theoretically, it is possible to select collation elements based on the proximity of word boundaries or other criteria. However, I don't know if there is an implementation that has that built in. ICU (one of the commonly used implementations of UCA+CLDR) does not. It sounds like the secondary difference is ok for sorting, but you are looking to customize an alphabetic index such that there is a separate "bucket" for words beginning with Ё. I think the best would be to do that with some custom code that looks for Ё as the first character, in addition to the regular bucketing and sorting. Best regards, markus -- Google Internationalization Engineering
