XML::Twig
Provides a way to process large XML documents in tree mode. http://www.xmltwig.com/xmltwig/
XML::XPath
XPath parser and evaluator. http://xml.sergeant.org/xpath.xml
XML::XSLT
A Perl module that will convert XML documents on the basis of an XSL template. http://xmlxslt.sourceforge.net/
XML::RSS
A basic framework for creating and maintaining RSS files. http://perl-rss.sourceforge.net/
Performance Comparison Between SAX XML::Filter::Dispatcher and XML::Twig
XML::Twig and the XML::SAX-based module XML::Filter::Dispatcher offer similar capabilities for implementing XPath-based dispatch tables. A performance comparison shows that they can have nearly identical execution speed. http://tomacorp.com/perl/xml/saxvstwig.html
XML::DOM::Twig
Helper module that adds XML::Twig methods to XML::DOM. http://www.xmltwig.com/domtwig/
Apache Xerces Perl API
Includes a collection of Perl5 wrapper objects that internally use their XML4C counterparts for Level 1 DOM processing. http://xml.apache.org/xerces-p/
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