From: "Peter Kirk" <[EMAIL PROTECTED]>I can see that there might be some problems in the changeover phase. But these are basically the same problems as are present anyway, and at least putting them into a changeover phase means that they go away gradually instead of being standardised for ever, or however long Unicode is planned to survive for.
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The problem would then be the interoperability of Unicode-compliant systems using distinct versions of Unicode (for example between XML processors, text editors, input methods, renderers, text converters, full text search engines. This may even be critical in tools like sorting, in applications that require and expect that their input is sorted according to its locale in a predictable way (for example in applications using binary searches in sorted lists of text items, such as authentication in a list of user names, or a filenames index).
It isn't a problem for XML etc as in such cases normalisation is recommended but not required, thankfully. As for requirements that lists are normalised and sorted, I would consider that a process that makes assumptions, without checking, about data received from another process under separate control is a process badly implemented and asking for trouble.
-- Peter Kirk [EMAIL PROTECTED] (personal) [EMAIL PROTECTED] (work) http://www.qaya.org/
