RSSLite(3)

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

SYNOPSIS
  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{'items'}}) {
  print "  --- Item ---\n",
        "  Title: $item->{'title'}\n",
        "  Desc:  $item->{'description'}\n",
        "  Link:  $item->{'link'}\n\n";
  }

DESCRIPTION
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 leading whitespace from URIs
By defaul strips characters except 0-9~!@#$%^&*()-+=a-zA-Z[];',.:"<>?\s
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

  EXPORT

parseRSS($outHashRef, $inScalarRef, [$strip])
    inScalarRef - required
        Reference to a scalar containing the document to be parsed. NOTE: The contents will effectively be destroyed. Make a deep copy first if you care.

    outHashRef - required
        Reference to the hash within which to store the parsed content.

    strip - optional
        An expression indicating the level of winnowing to be performed on the characters permitted in the results.

        1 strip non-printable characters
        0 no characters are removed
        undefined (Default) strip everything but:
            0-9~!@#$%^&*()-+= a-zA-Z[];',.:"<>?\t\n

  EXPORTABLE

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

  CAVEATS
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.

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

AUTHOR
Jerrad Pierce <jpierce@cpan.org>.

Scott Thomason <scott@thomasons.org>

LICENSE
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.

POD ERRORS
Hey! The above document had some coding errors, which are explained below:

Around line 480:
    =back without =over