Unicode::Collate::CJK::GB2312 - weighting CJK Unified Ideographs for Unicode::Collate
use Unicode::Collate;
use Unicode::Collate::CJK::GB2312;
my $collator = Unicode::Collate->new(
overrideCJK => \&Unicode::Collate::CJK::GB2312::weightGB2312
); Unicode::Collate::CJK::GB2312 provides weightGB2312(), that is adequate for overrideCJK of Unicode::Collate and makes tailoring of CJK Unified Ideographs in the order of CLDR's gb2312han ordering.
The gb2312han ordering includes 5 code points in private use area (E2D8..E2DC), that can't utilize weightGB2312() for collation. For them, use entry instead.
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https://perldoc.perl.org/5.42.0/Unicode::Collate::CJK::GB2312