The xsl:element, xsl:attribute,
xsl:processing-instruction, xsl:comment, and xsl:text elements can output elements, attributes, processing instructions, comments,
and text calculated from data in the input document.
The xsl:copy element to
copy nodes from the input to the output
The xsl:copy-of element to
copy nodes from the input to the output with their contents
intact
Parameters for passing arguments to templates
Modes for reprocessing the same element in a different fashion
Recursion
Named templates, variables, and attribute sets help you reuse common template code.
The xsl:import and xsl:include elements merge rules from different style sheets.
Various attributes of the xsl:output element allow you to specify the
output document's format, XML declaration, document type declaration, indentation, encoding and MIME type.
Extension functions written in other languages like Java, JavaScript, and C++
Extension elements written in other languages like Java, JavaScript, and C++