1Feed::Find(3) User Contributed Perl Documentation Feed::Find(3)
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6 Feed::Find - Syndication feed auto-discovery
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9 use Feed::Find;
10 my @feeds = Feed::Find->find('http://example.com/');
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13 Feed::Find implements feed auto-discovery for finding syndication
14 feeds, given a URI. It (currently) passes all of the auto-discovery
15 tests at http://diveintomark.org/tests/client/autodiscovery/.
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17 Feed::Find will discover the following feed formats:
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19 • RSS 0.91
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21 • RSS 1.0
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23 • RSS 2.0
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25 • Atom
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28 Feed::Find->find($uri)
29 Given a URI $uri, use a variety of techniques to find the feeds
30 associated with that page. If $uri itself points to a feed (i.e., if
31 the Content-Type of the response is a recognized feed type), returns
32 $uri.
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34 Returns a list of feed URIs.
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36 The following techniques are used:
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38 1. <link> tag auto-discovery
39 If the page contains any <link> tags in the <head> section, these
40 tags are examined for recognized feed content types. The following
41 content types are treated as feeds: application/x.atom+xml,
42 application/atom+xml, application/xml, text/xml,
43 application/rss+xml, and application/rdf+xml.
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45 2. Scanning <a> tags
46 If the page does not contain any known <link> tags, the page is
47 then scanned for <a> tags for links to URIs with certain file
48 extensions. The following extensions are treated as feeds: .rss,
49 .xml, and .rdf.
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51 Note that this technique is employed only if the first technique
52 returns no results.
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54 Feed::Find->find_in_html(\$html [, $base_uri ])
55 Given a reference to a string $html containing an HTML page, uses the
56 same techniques as described above in find to find the feeds associated
57 with that page.
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59 If you know the URI of the page, you should provide it in $base_uri, so
60 that relative links can be properly made absolute. Feed::Find will
61 attempt to determine the correct base URI, but unless that URI is
62 specified in the HTML itself (in a "<meta>" tag), you'll need to supply
63 it yourself.
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65 Returns a list of feed URIs.
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68 Feed::Find is free software; you may redistribute it and/or modify it
69 under the same terms as Perl itself.
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72 Except where otherwise noted, Feed::Find is Copyright 2004 Benjamin
73 Trott, ben+cpan@stupidfool.org. All rights reserved.
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77perl v5.38.0 2023-07-20 Feed::Find(3)