#!/usr/bin/perl
use strict;
use warnings;
use CGI qw(-oldstyle_urls);
my $q = new CGI;
print $q->url(-path_info => 1, -query => 1)."\n";
print $q->url(-path_info => 1, -query => 1)."\n"
if (param_ie_convert($q));
use Jcode;
sub param_ie_convert {
my ($q) = @_;
my $key = $q->param('key');
my $ie = $q->param('ie');
return unless defined $ie;
$q->delete('ie');
return unless (defined $key and $key =~ /[\x80-\xff]/);
return unless ($ie =~ /^(euc|sjis)$/);
$q->param(-name=>'key', -value=>Jcode->new($key, $ie)->utf8);
return 1;
}
% a.pl 'key=%b9%e7%bd%c9&ie=euc&dummy=foo' http://localhost/./jcc.cgi?key=%B9%E7%BD%C9&ie=euc&dummy=foo http://localhost/./jcc.cgi?key=%E5%90%88%E5%AE%BF&dummy=foo


