mutter.p6

#!/usr/bin/env perl6

my \x = "mütter";
my \y = "mütter";

if x eq y {
    say "same"
} else {
    say "different"
}

say x.chars;
say y.chars;

# same
# 6
# 6

mutter.pl

#!/usr/bin/env perl

use v5.20;
use utf8;

my $x = "mütter";
my $y = "mütter";

if ( $x eq $y ) {
  say "same"
} else {
  say "different"
}

say length($x);
say length($y);

# different
# 6
# 7

mutter.py

#!/usr/bin/env python
#-*- encoding: utf8 -*-

x = "mütter";
y = "mütter";

if x == y:
    print "same"
else:
    print "different"

print len(x)
print len(y)

# different
# 7
# 8

mutter.rb

#!/usr/bin/env ruby

x = "mütter";
y = "mütter";

if x == y
    puts "same"
else
    puts "different"
end

puts x.length
puts y.length

# different
# 6
# 7

u-combining-char

ü

u-single-char

ü