Encoding: use 'utf8'

Question

Can I omit the use 'utf8'-pragma when I am already using use encoding 'utf8'?

#!/usr/bin/env perl
use warnings;
use 5.012;
use Encode qw(is_utf8);

use encoding 'utf8';


my %hash = ( '☺' => "☺", '\x{263a}' => "\x{263a}", 'ä' => "ä", 'a' => "a" );
for my $key ( sort keys %hash ) {
    say "UTF8 flag is turned on in the STRING $key" if is_utf8( $hash{$key} );
    say "UTF8 flag is NOT turned on in the STRING $key" if not is_utf8( $hash{$key} );
}

See Q: http://stackoverflow.com/questions/492838/why-do-my-perl-tests-fail-with-use-encoding-utf8 — rubber boots, Mar 09 '11 at 11:11

ikegami · Accepted Answer · 2020-07-26T06:37:05.743

5

use encoding is official discouraged. The module is deprecated because it causes very weird behaviour. Instead, you should use the following:

use utf8;                             # Source code is UTF-8
use open ':std', ':encoding(UTF-8)';  # STDIN,STDOUT,STDERR are UTF-8.

edited Jul 26 '20 at 06:37

answered Mar 09 '11 at 20:23

ikegami

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score 0 · Answer 2 · answered Mar 09 '11 at 11:29

0

Yes, but make sure you are familiar with the CAVEATS in the perldoc.

answered Mar 09 '11 at 11:29

Eugene Yarmash

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Encoding: use 'utf8'

2 Answers2