all tasks

Task/String-length/Perl/string-length-1.pl

@@ -0,0 +1,8 @@
+use utf8; # so we can use literal characters like ☺ in source
+use Encode qw(encode);
+
+print length encode 'UTF-8', "Hello, world! ☺";
+# 17. The last character takes 3 bytes, the others 1 byte each.
+
+print length encode 'UTF-16', "Hello, world! ☺";
+# 32. 2 bytes for the BOM, then 15 byte pairs for each character.

Task/String-length/Perl/string-length-2.pl

@@ -0,0 +1 @@
+my $length = length "Hello, world!";

Task/String-length/Perl/string-length-3.pl

@@ -0,0 +1,5 @@
+use v5.12;
+my $string = "\x{1112}\x{1161}\x{11ab}\x{1100}\x{1173}\x{11af}";  # 한글
+my $len;
+$len++ while ($string =~ /\X/g);
+printf "Grapheme length: %d\n", $len;