string<=> ( str1 str2 -- <=> )
Collation and weak comparison

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Vocabulary
unicode

Inputs

str1	a string
str2	a string

Outputs

<=>	one of +lt+, +gt+ or +eq+

Word description
This word takes two strings and compares them using the UCA with the DUCET, using code point order as a tie-breaker.

Definition

USING: arrays math.order ;

IN: unicode

: string<=> ( str1 str2 -- <=> )
    [ collation-key/nfd 2array ] compare ;