resin Introduction Resin's XML parser uses the JAXP API XML path language, a pattern matching language for selecting nodes in an XML tree. The most useful subset is covered here. For the full description, see the XPath 1.0 spec. XSLT's power comes from the XML path language, a pattern matching language for selecting nodes in an XML tree. The most useful subset is covered here. For the full description, see the XPath 1.0 spec. Reference guide to the XSLT tags. The most useful subset is covered here. For the full description, see the XSLT 1.0 spec.