IDNA::Punycode is a module to encode / decode Unicode strings into Punycode, an efficient encoding of Unicode for use with IDNA.

Example

#!/usr/bin/perl -w
use strict;

use IDNA::Punycode;
use Unicode::String qw(latin1 utf8);

my $in = utf8($ARGV[0]);
my $in_ok = ($in->latin1);

my $punycode = encode_punycode($in_ok);

print "$ARGV[0]\n$punycode\n";

Usage

./punycode.pl bücher
bücher
xn--bcher-kva

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See also:

• search.cpan.org/~miyagawa/IDNA-Punycode/lib/IDNA/Punycode.pm↑
• primus.pgate.net/punycode/↑

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