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#-*- perl -*-
#
# Copyright (C) 2001 Ken'ichi Fukamachi
# All rights reserved. This program is free software; you can
# redistribute it and/or modify it under the same terms as Perl itself.
#
# $Id$
# $FML$
#
### ###
### CAUTION: THE CHARSET OF THIS FILE IS "EUC-JAPAN". ###
### ###
package Dialect::Japanese::Subject;
use strict;
use vars qw(@ISA @EXPORT @EXPORT_OK);
use Carp;
use Jcode;
=head1 NAME
Dialect::Japanese::Subject - Japanese specific handling of a subject
=head1 SYNOPSIS
use Dialect::Japanese::Subject;
$is_reply = Dialect::Japanese::Subject::is_reply($subject);
=head1 DESCRIPTION
a collection to handle Japanese specific representations which appears
in the subject.
=cut
require Exporter;
@ISA = qw(Exporter);
# XXX we should it in proper way in the future.
# XXX but we import it anyway for further rewriting.
my $CUT_OFF_RERERE_PATTERN = '';
my $CUT_OFF_RERERE_HOOK = '';
# subjec reply pattern
# apply patch from OGAWA Kunihiko <kuni@edit.ne.jp>
# fml-support:7626 7653 07666
# Re: Re2: Re[2]: Re(2): Re^2: Re*2:
my $pattern = 'Re:|Re\d+:|Re\[\d+\]:|Re\(\d+\):|Re\^\d+:|Re\*\d+:';
$pattern .= '|(�ֿ�|��|�ң�|�ң�)(\s*:|��)';
=head1 METHODS
=head2 C<new()>
usual constructor.
=head2 C<is_reply($string)>
check whether C<$string> looks like a reply message.
C<$string> is a C<Subject:> of the mail header.
For example, it is like this:
Re: reply to your messages
=cut
sub new
{
my ($self) = @_;
my ($type) = ref($self) || $self;
my $me = {};
return bless $me, $type;
}
sub is_reply
{
my ($self, $x) = @_;
return 0 unless $x;
&Jcode::convert(\$x, 'euc');
return ($x =~ /^((\s|(��))*($pattern)\s*)+/ ? 1 : 0);
}
=head2 C<cut_off_reply_tag($subject)>
cut off C<Re:> in the string C<$subject> like C<Re: ... >
within C<Subject:>.
=cut
# fml-support: 07507
# sub CutOffRe
# {
# ���ޤޤǤɤ���� Re: �Ȥ��ȤäѤ餦
#
# if ($LANGUAGE eq 'Japanese') {
# ���ܸ������¸�饤�֥�������
# ������� $CUT_OFF_PATTERN (config.ph)�ʤɤˤ������ä�
# �ڤ���Ȥ��Τ��ɤ��ʤ��ä����ܸ��������Ȥ��⤦�櫓��
# �ǡ����Υ饤�֥�����Ǽ¹Ԥ����
# }
#
# run-hooks $CUT_OFF_HOOK(�桼�����HOOK)
#}
# �����к�
sub cut_off_reply_tag
{
my ($subject) = @_;
my ($y, $limit);
Jcode::convert(\$subject, 'euc');
if ($CUT_OFF_RERERE_PATTERN) {
Jcode::convert(\$CUT_OFF_RERERE_PATTERN, 'euc');
}
$pattern .= '|' . $CUT_OFF_RERERE_PATTERN if ($CUT_OFF_RERERE_PATTERN);
# fixed by OGAWA Kunihiko <kuni@edit.ne.jp> (fml-support: 07815)
# $subject =~ s/^((\s*|(��)*)*($pattern)\s*)+/Re: /oi;
$subject =~ s/^((\s|(��))*($pattern)\s*)+/Re: /oi;
if ($CUT_OFF_RERERE_HOOK) {
eval($CUT_OFF_RERERE_HOOK);
&Log($@) if $@;
}
Jcode::convert(\$subject, 'jis');
$subject;
}
=head1 AUTHOR
Ken'ichi Fukamachi
=head1 COPYRIGHT
Copyright (C) 2001 Ken'ichi Fukamachi
All rights reserved. This program is free software; you can
redistribute it and/or modify it under the same terms as Perl itself.
=head1 HISTORY
Dialect::Japanese::Subject appeared in fml5 mailing list driver package.
See C<http://www.fml.org/> for more details.
=cut
1;
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