RSSLite(3) User Contributed Perl Documentation RSSLite(3)

XML::RSSLite - lightweight, "relaxed" RSS (and XML-ish) parser

use XML::RSSLite;

. . .

parseRSS(\%result, \$content);

print "=== Channel ===\n",
      "Title: $result{'title'}\n",
      "Desc:  $result{'description'}\n",
      "Link:  $result{'link'}\n\n";

foreach $item (@{$result{'item'}}) {
print "  --- Item ---\n",
      "  Title: $item->{'title'}\n",
      "  Desc:  $item->{'description'}\n",
      "  Link:  $item->{'link'}\n\n";
}

This module attempts to extract the maximum amount of content from available documents, and is less concerned with XML compliance than alternatives. Rather than rely on XML::Parser, it uses heuristics and good old-fashioned Perl regular expressions. It stores the data in a simple hash structure, and "aliases" certain tags so that when done, you can count on having the minimal data necessary for re-constructing a valid RSS file. This means you get the basic title, description, and link for a channel and its items.

This module extracts more usable links by parsing "scriptingNews" and "weblog" formats in addition to RDF & RSS. It also "sanitizes" the output for best results. The munging includes:

Remove html tags to leave plain text
Remove characters other than 0-9~!@#$%^&*()-+=a-zA-Z[];',.:"<>?\s
Remove leading whitespace from URIs
Use <url> tags when <link> is empty
Use misplaced urls in <title> when <link> is empty
Exract links from <a href=...> if required
Limit links to ftp and http(s)
Join relative item urls (beginning with / or #) to the site base

parseRSS($outHashRef, $inScalarRef)
$inScalarRef is a reference to a scalar containing the document to be parsed, the contents will effectively be destroyed. $outHashRef is a reference to the hash within which to store the parsed content.

parseXML(\%parsedTree, \$parseThis, 'topTag', $comments);
parsedTree - required
Reference to hash to store the parsed document within.
parseThis - required
Reference to scalar containing the document to parse.
topTag - optional
Tag to consider the root node, leaving this undefined is not recommended.
comments - optional
false will remove contents from parseThis
true will not remove comments from parseThis
array reference is true, comments are stored here

This is not a conforming parser. It does not handle the following
  • <foo bar=">">
    
  • <foo><bar> <bar></bar> <bar></bar> </bar></foo>
    
  • <![CDATA[ ]]>
    
  • PI
    

It's non-validating, without a DTD the following cannot be properly addressed

entities
namespaces
This may or may not be arriving in some future release.

perl(1), "XML::RSS", "XML::SAX::PurePerl", "XML::Parser::Lite", <XML::Parser>

Jerrad Pierce <jpierce@cpan.org>.

Scott Thomason <scott@thomasons.org>

Portions Copyright (c) 2002,2003,2009 Jerrad Pierce, (c) 2000 Scott Thomason. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

Hey! The above document had some coding errors, which are explained below:
Around line 410:
You forgot a '=back' before '=head2'
Around line 446:
=back without =over
2020-07-07 perl v5.32.0