Provided by: libxml-rsslite-perl_0.17+dfsg-2_all
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.