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Update: Sorry, some errors in the code below. In particular, the constructor for the collator should be this.

my $Collator = Unicode::Collate::Locale->new(locale =>'vi');
Then the sort method will work as intended. Try it with actual Vietnamese words.

Unicode::Collate::Locale ought to help. Example code below not using code tags due to display bug with utf8 text.

#!/usr/bin/env perl
use v5.14;
use warnings;
use utf8::all;

use Unicode::Collate::Locale;
my $Collator = Unicode::Collate::Locale->new('vi');

my @unsorted = qw(
                  a..7
                  ả..3
                  ..9
                  ạ..5
                  ..4
                  ..1
                  ă..6
                  ..2
                  ..8
                 );

my @sorted = $Collator->sort(@unsorted);

say "unsorted\n@unsorted";
say "sorted\n@sorted";
Output is as follows.
unsorted
a..7 ả..3 ..9 ạ..5 ..4 ..1 ă..6 ..2 ..8
sorted
..1 ..2 ả..3 ..4 ạ..5 ă..6 a..7 ..8 ..9

Update #2: The code below actually is a correct example.

#!/usr/bin/env perl
use v5.14;
use warnings;
use utf8::all;
use Unicode::Collate::Locale;

my $Collator = Unicode::Collate::Locale->new(locale =>'vi');

my @unsorted = ('', 'ả', '', '', 'ậ', 'ă', 'ạ', 'ẫ', 'a', 'ẩ' );
my @sorted = $Collator->sort(@unsorted);

say "unsorted\n@unsorted";
say "sorted\n@sorted";
Giving the output:
unsorted
 ả   ậ ă ạ ẫ a ẩ
sorted
a  ả   ạ ă ẩ ẫ ậ


In reply to Re: Sorting Vietnamese text by farang
in thread Sorting Vietnamese text by pdenisowski

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