And I suspect that most of them will choose to support the language-specific frills that 40% of the world's population demand. In fact, I don't know of a single language-specific "frill" that has as much demand as casing; the non-casing scripts are a pretty diverse bunch that the majority share no "frill" as key to them as casing is Cyrillic, Latin and Greek.
You are right that basic latin case folding is pretty important, and probably deserves its special significance. The latin alphabet is used all the time in Japanese and VIetnamese. ( In vietnam Im pretty sure they don't see it as foreign ) The more advanced and language specific versions of if are very tricky though. (german, turkish, etc) and rarely done right. I don't think the standard C library even has a sequence based toupper/tolower. Titlecase strikes me as even weirder, because then you have to have rules to decide what constitutes a word- which is not as trivial as it sounds and is very language dependant. In general, I try to avoid designing anything case-insensitive as much as possible. But sometimes its unavoidable, such as when handling search. In those cases, its impossible to write one routine that can handle all languages, because of the incompatibilities betwene different systems. Most of the time, doing a basic best effort gets you by, but it does leave a bad aftertaste. Even when making the be all end all language sensitive case folding system, I can imagine problems than are unsolvable. How would you handle this problem: search for a mix of german, english, and turkish words in a case-insensitive manner ? -- Linux-UTF8: i18n of Linux on all levels Archive: http://mail.nl.linux.org/linux-utf8/
