The attributes pragma in Perl allows you to add metadata to subroutines, variables, and packages. When dealing with Unicode and encodings, it's essential to be aware of how attributes might affect the handling of strings, particularly when it comes to character encodings and the interpretation of the data.
Here's a simple example demonstrating the use of attributes with a Unicode string:
use strict;
use warnings;
use feature 'say';
use utf8;
sub example_function : lvalue {
my ($input) = @_;
return $input;
}
my $str = "こんにちは"; # Japanese for "Hello"
say example_function($str); # Outputs: こんにちは
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