2009/11/18 Przemysław Czerpak <[email protected]>:
> The 1-st and most important is common sorting algorithm.
> If you have three different languages and each of them uses
> different national sorting rules then migrating to unicode
> you will have to chose some sorting method used for all unicode
> strings what means that for at least two languages you will not
> be able to replicate exact national sorting conditions. If you
> are creating database for phone book and exact national sorting
> is a must then you cannot use any language which replaces strict
> national sorting with some common for different languages universal
> collation algorithm which are used for sorting unicode string and
> if support for unicode is not optional then you have to change the
> language to some more flexible one which do not force using Unicode.

Here's a quite detailed document on that matter:
http://unicode.org/reports/tr10/

-- Ph.
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