lib/Yuki/RSS.pm

package Yuki::RSS;
use strict;
use vars qw($VERSION);

$VERSION = '0.2';

=head1 NAME

Yuki::RSS - The smallest module to generate RSS 1.0. 
It is downward compatible to XML::RSS.

=head1 SYNOPSIS

    use strict;
    use Yuki::RSS;

    my $rss = new Yuki::RSS(
        version => '1.0',
        encoding => 'Shift_JIS'
    );

    $rss->channel(
        title => "Site Title",
        link => "http://url.of.your.site/",
        description  => "The description of your site",
    );

    $rss->add_item(
        title => "Item Title",
        link => "http://url.of.your/item.html",
        description => "Yoo, hoo, hoo",
    );

    print $rss->as_string;

=head1 DESCRIPTION

Yuki::RSS is the smallest RSS 1.0 generator.
This module helps you to create the minimum document of RSS 1.0.
If you need more than that, use XML::RSS.

=head1 METHODS

=over 4

=item new Yuki::RSS (version => $version, encoding => $encoding)

Constructor for Yuki::RSS.
It returns a reference to a Yuki::RSS object.
B<version> must be 1.0.
B<encoding> will be inserted output document as a XML encoding.
This module does not convert to this encoding.

=item add_item (title => $title, link => $link, description => $description)

Adds an item to the Yuki::RSS object.

=item as_string

Returns the RSS string.

=item channel (title => $title, link => $link, description => $desc)

Channel information of RSS.

=head1 SEE ALSO

=over 4

=item L<XML::RSS>

=back

=head1 AUTHOR

Hiroshi Yuki <hyuki@hyuki.com> http://www.hyuki.com/

=head1 LICENSE

Copyright (C) 2001 by Hiroshi Yuki.

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

=cut

# The constructor.
sub new {
    my ($class, %hash) = @_;
    my $self = {
        version => $hash{version},
        encoding => $hash{encoding},
        channel => { },
        items => [],
    };
    return bless $self, $class;
}

# Setting channel.
sub channel {
    my ($self, %hash) = @_;
    foreach (keys %hash) {
        $self->{channel}->{$_} = $hash{$_};
    }
    return $self->{channel};
}

# Adding item.
sub add_item {
    my ($self, %hash) = @_;
    push(@{$self->{items}}, \%hash);
    return $self->{items};
}

# 
sub as_string {
    my ($self) = @_;
    my $doc = <<"EOD";
<?xml version="1.0" encoding="$self->{encoding}" ?>

<rdf:RDF
 xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
 xmlns="http://purl.org/rss/1.0/"
>

<channel rdf:about="$self->{channel}->{link}">
 <title>$self->{channel}->{title}</title>
 <link>$self->{channel}->{link}</link>
 <description>$self->{channel}->{description}</description>
 <items>
  <rdf:Seq>
   @{[
    map {
     qq{<rdf:li rdf:resource="$_->{link}" />}
    } @{$self->{items}}
   ]}
  </rdf:Seq>
 </items>
</channel>
@{[
 map {
  qq{
   <item rdf:about="$_->{link}">
    <title>$_->{title}</title>
    <link>$_->{link}</link>
    <description>$_->{description}</description>
   </item>
  }
 } @{$self->{items}}
]}
</rdf:RDF>
EOD
}

1;
1	wakaba	1.1	package Yuki::RSS;
2			use strict;
3			use vars qw($VERSION);
4
5			$VERSION = '0.2';
6
7			=head1 NAME
8
9			Yuki::RSS - The smallest module to generate RSS 1.0.
10			It is downward compatible to XML::RSS.
11
12			=head1 SYNOPSIS
13
14			use strict;
15			use Yuki::RSS;
16
17			my $rss = new Yuki::RSS(
18			version => '1.0',
19			encoding => 'Shift_JIS'
20			);
21
22			$rss->channel(
23			title => "Site Title",
24			link => "http://url.of.your.site/",
25			description => "The description of your site",
26			);
27
28			$rss->add_item(
29			title => "Item Title",
30			link => "http://url.of.your/item.html",
31			description => "Yoo, hoo, hoo",
32			);
33
34			print $rss->as_string;
35
36			=head1 DESCRIPTION
37
38			Yuki::RSS is the smallest RSS 1.0 generator.
39			This module helps you to create the minimum document of RSS 1.0.
40			If you need more than that, use XML::RSS.
41
42			=head1 METHODS
43
44			=over 4
45
46			=item new Yuki::RSS (version => $version, encoding => $encoding)
47
48			Constructor for Yuki::RSS.
49			It returns a reference to a Yuki::RSS object.
50			B<version> must be 1.0.
51			B<encoding> will be inserted output document as a XML encoding.
52			This module does not convert to this encoding.
53
54			=item add_item (title => $title, link => $link, description => $description)
55
56			Adds an item to the Yuki::RSS object.
57
58			=item as_string
59
60			Returns the RSS string.
61
62			=item channel (title => $title, link => $link, description => $desc)
63
64			Channel information of RSS.
65
66			=head1 SEE ALSO
67
68			=over 4
69
70			=item L<XML::RSS>
71
72			=back
73
74			=head1 AUTHOR
75
76			Hiroshi Yuki <hyuki@hyuki.com> http://www.hyuki.com/
77
78			=head1 LICENSE
79
80			Copyright (C) 2001 by Hiroshi Yuki.
81
82			This program is free software; you can redistribute it and/or
83			modify it under the same terms as Perl itself.
84
85			=cut
86
87			# The constructor.
88			sub new {
89			my ($class, %hash) = @_;
90			my $self = {
91			version => $hash{version},
92			encoding => $hash{encoding},
93			channel => { },
94			items => [],
95			};
96			return bless $self, $class;
97			}
98
99			# Setting channel.
100			sub channel {
101			my ($self, %hash) = @_;
102			foreach (keys %hash) {
103			$self->{channel}->{$_} = $hash{$_};
104			}
105			return $self->{channel};
106			}
107
108			# Adding item.
109			sub add_item {
110			my ($self, %hash) = @_;
111			push(@{$self->{items}}, \%hash);
112			return $self->{items};
113			}
114
115			#
116			sub as_string {
117			my ($self) = @_;
118			my $doc = <<"EOD";
119			<?xml version="1.0" encoding="$self->{encoding}" ?>
120
121			<rdf:RDF
122			xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
123			xmlns="http://purl.org/rss/1.0/"
124			>
125
126			<channel rdf:about="$self->{channel}->{link}">
127			<title>$self->{channel}->{title}</title>
128			<link>$self->{channel}->{link}</link>
129			<description>$self->{channel}->{description}</description>
130			<items>
131			<rdf:Seq>
132			@{[
133			map {
134			qq{<rdf:li rdf:resource="$_->{link}" />}
135			} @{$self->{items}}
136			]}
137			</rdf:Seq>
138			</items>
139			</channel>
140			@{[
141			map {
142			qq{
143			<item rdf:about="$_->{link}">
144			<title>$_->{title}</title>
145			<link>$_->{link}</link>
146			<description>$_->{description}</description>
147			</item>
148			}
149			} @{$self->{items}}
150			]}
151			</rdf:RDF>
152			EOD
153			}
154
155			1;