To implement "UTF-8 lexicographic sorting", you merely have to read in the filenames as UTF-8 (or, when reading them from the filesystem via File::Find, use Encode::decode to convert them to Unicode). Note that the filesystem APIs don't know about UTF-8 or any filename encodings, so you will have to encode the filenames appropriately when talking to the filesystem. Perl will do the rest when you sort them. For example, the following code should do what you describe:

use strict;
use warnings;
use File::Find;
use Encode 'decode';

my @found_files;
File::Find::find(sub {
    push @found_files, decode('UTF-8', $File::Find::name);
}, '.');

@found_files = sort @found_files;

for my $file (@found_files) {
    my $fs_name = encode('UTF-8', $file);
    open my $fh, '<', $fs_name
        or die "Couldn't open '$file': $!";
};

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In reply to Re: UTF-8 lexicographic string sort by Corion
in thread UTF-8 lexicographic string sort by rdiez

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