The key is to ensure you're reading the input (and possibly also writing the output) using the right PerlIO layer — in this case, ':encoding(UTF-8)'. If you're using <> or <ARGV> (and possibly also STDOUT), then you may want to use the open pragma.

#!perl

use strict;
use warnings;
use open qw( :encoding(UTF-8) :std );

while (my $record = <>) {
    chomp $record;

    if ($record =~ m/^(pd\.\d+),([^,]+),([^,]+)$/) {
        my ($field1, $field2, $field3) = ($1, $2, $3);

        print "$field1\n";
        print "$field2\n";
        print "$field3\n";
    }
}

exit 0;

[download]

I recommend you use the Text::CSV module to parse the CSV records instead of a regular expression pattern. This will allow you to parse records that have literal commas in the text.

UPDATE: I changed ':utf8' to ':encoding(UTF-8)' based on something I read in Moritz's fine article titled Character Encodings in Perl.

In reply to Re: Parsing UTF-8 characters by Jim
in thread Parsing UTF-8 characters by lordsll

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