An example from Perl: you can use unicode characters in the source code with use utf8; This pragma tells perl to parse the source as UTF-8. It allows us to us

An example from Perl: you can use unicode characters in the source code with use utf8; This pragma tells perl to parse the source as UTF-8. It allows us to use unicode characters in string like this: my $exampletext = 'Hallöchen Unicode! Ça va bien?'; And we can use unicode characters in identifiers: my $γ = 2.5; my $π = 3.14159; my $θ = $γ / $π; (This is not possible for subroutine and package names) Using greek characters as identifiers could be useful for some people.