Sorting using the Unicode Collation Algorithm (UCA) is available in the core module Unicode::Collate bundled with Perl 5.8 or on CPAN. Sorting using the UCA with linguistic tailoring is available in ...

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but it doesn't really handle Unicode at all," Kernighan tells interviewer professor David Brailsford. "A few months ago, I spent some time working with (laughs) an incredibly old program.

The generally accepted Unicode standard is used to encode, represent and process text in most of the world's languages. In addition to text itself, Unicode also supports many characters such as emoji.