copy.rdfa.attributes boolean copy.rdfa.attributes Copy RDFA attributes to HTML output RDFa (or Resource Description Framework in Attributes) is a W3C Recommendation that adds a set of attribute-level extensions to HTML, XHTML and various XML-based document types for embedding rich metadata within Web documents. RDFa Lite is a core subset of attributes also defined as a W3C Recommendation. DocBook 5.1 added support for the RDFa Lite attributes to the DocBook schema. Those attributes are vocab, typeof, property, resource, prefix. If the parameter copy.rdfa.attributes is nonzero, any RDFa Lite attributes appearing on elements in the XML source will be copied through to the corresponding element in the generated HTML. If the parameter is zero, then those attributes are not copied though. The default value is "1".