MIME::Lite::TT::Japanese - MIME::Lite::TT with Japanese character code

  use MIME::Lite::TT::Japanese;

  my $msg = MIME::Lite::TT::Japanese->new(
              From => 'me@myhost.com',
              To => 'you@yourhost.com',
              Subject => 'Hi',
              Template => \$template,
              TmplParams => \%params, 
              TmplOptions => \%options,
              Icode => 'sjis',
              LineWidth => 72,
            );

  $msg->send();

package MIME::Lite::TT::Japanese;
use strict;
use vars qw($VERSION);
$VERSION = '0.08';

use base qw(MIME::Lite::TT);
use Jcode;
use DateTime::Format::Mail;

sub _after_process {
	my $class = shift;
	my %options = (
        Type => 'text/plain; charset=iso-2022-jp',
        Encoding => '7bit',
        Datestamp => 0,
        Date => DateTime::Format::Mail->format_datetime( DateTime->now->set_time_zone('Asia/Tokyo') ),
        @_,
    );
	$options{Subject} = encode_header( $options{Subject}, $options{Icode});
    $options{From}    = encode_header( $options{From}, $options{Icode});
	$options{Data}    = encode_body( $options{Data}, $options{Icode}, $options{LineWidth} );
    delete $options{LineWidth};
	return %options;
}

sub encode_header {
    my ($str, $icode) = @_;
    $str = remove_utf8_flag($str);
    return Jcode->new($str, $icode || guess_encoding($str) )->mime_encode;
}

sub encode_body {
    my ($str, $icode, $line_width) = @_;
    $str = remove_utf8_flag($str);
    $str =~ s/\x0D\x0A/\n/g;
    $str =~ tr/\r/\n/;
    my $encoding = $icode || guess_encoding($str);
    unless ( $line_width eq '0') {
        return join "\n", map {
            Jcode->new($_, $encoding)->jfold($line_width)->jis
        } split /\n/, $str;
    } else {
        return Jcode->new($str, $encoding )->jis;
    }
}

sub guess_encoding {
    my ($str) = @_;
    my $enc = Jcode::getcode($str) || 'euc';
    $enc = 'euc' if $enc eq 'ascii' || $enc eq 'binary';
    return $enc;
}

sub remove_utf8_flag { pack 'C0A*', $_[0] }

1;
__END__