######################################################################
# metarobots.inc.pl - This is PyukiWiki, yet another Wiki clone.
# $Id: metarobots.inc.pl,v 1.166 2011/12/28 07:22:33 papu Exp $
#
# "PyukiWiki" version 0.2.0-beta3 $$
# Author: Nanami http://nanakochi.daiba.cx/
# Copyright (C) 2004-2011 by Nekyo.
# http://nekyo.qp.land.to/
# Copyright (C) 2005-2011 PyukiWiki Developers Team
# http://pyukiwiki.sfjp.jp/
# Based on YukiWiki http://www.hyuki.com/yukiwiki/
# Powerd by PukiWiki http://pukiwiki.sfjp.jp/
# License: GPL2 and/or Artistic or each later version
#
# This program is free software; you can redistribute it and/or
# modify it under the same terms as Perl itself.
# Return:LF Code=EUC-JP 1TAB=4Spaces
######################################################################
# v0.2.0 First Release
#
#*Usage
# #metarobots(keywords,[keywords]...)
# #metarobots(disable)
######################################################################

sub plugin_metarobots_convert {
	my ($arg)=@_;
	return if(!&is_frozen($::form{mypage}));
	return ' ' if($arg eq '');
	my @meta_keyword;
	my $keyword;
	my $noarchiveflg=0;
	my $disableflg=0;
	foreach my $word (split(/,/,"$::meta_keyword,$arg")) {
		if($word eq "noarchive") {
			$noarchiveflg=1;
			next;
		}
		if($word eq "disable" || $word eq "noindex") {
			$disableflg=1;
			next;
		}
		my $flg=0;
		if($arg ne "") {
			foreach my $tmp (@meta_keyword) {
				if($tmp eq $word) {
					$flg=1;
					last;
				}
			}
			push(@meta_keyword, $word)
				if($flg eq 0);
		}
	}
	foreach(@meta_keyword) {
		$keyword.="$_,";
	}
	$keyword=~s/\,$//g;

	if($disableflg eq 1) {
		$::IN_META_ROBOTS=<<EOM;
<meta name="robots" content="NOINDEX,NOFOLLOW,NOARCHIVE" />
<meta name="googlebot" content="NOINDEX,NOFOLLOW,NOARCHIVE" />
EOM
	} elsif($noarchiveflg eq 1) {
		$::IN_META_ROBOTS=<<EOM;
<meta name="robots" content="INDEX,FOLLOW,NOARCHIVE" />
<meta name="googlebot" content="INDEX,FOLLOW,NOARCHIVE" />
<meta name="keywords" content="$keyword" />
EOM
	} else {
		$::IN_META_ROBOTS=<<EOM;
<meta name="robots" content="INDEX,FOLLOW" />
<meta name="googlebot" content="INDEX,FOLLOW,ARCHIVE" />
<meta name="keywords" content="$keyword" />
EOM
	}
	return ' ';
}
1;
__END__

=head1 NAME

metarobots.inc.pl - PyukiWiki Plugin

=head1 SYNOPSIS

 #metarobots(keywords [,keywords]...[,noarchive])
 #metarobots(disable)

=head1 DESCRIPTION

Setting metarobots tag

=head1 SEE ALSO

=over 4

=item PyukiWiki/Plugin/Standard/metarobots

L<http://pyukiwiki.sfjp.jp/PyukiWiki/Plugin/Standard/metarobots/>

=item PyukiWiki CVS

L<http://sfjp.jp/cvs/view/pyukiwiki/PyukiWiki-Devel/plugin/metarobots.inc.pl?view=log>

=back

=head1 AUTHOR

=over 4

=item Nanami

L<http://nanakochi.daiba.cx/> etc...

=item PyukiWiki Developers Team

L<http://pyukiwiki.sfjp.jp/>

=back

=head1 LICENSE

Copyright (C) 2005-2011 by Nanami.

Copyright (C) 2005-2011 by PyukiWiki Developers Team

License is GNU GENERAL PUBLIC LICENSE 2 and/or Artistic 1 or each later version.

This program is free software; you can redistribute it and/or
modify it under the same terms as Perl itself.

=cut
