%xinclude.class;
XInclude Class
Class to hold just the <xi:include> element so that it can be used in book front matter as well as other places.
Model
<!ENTITY % xinclude.class "xi:include" >
<!ENTITY % xinclude.class "xi:include" >
Book Interchange Tag Suite (BITS) Version 2.0 Tag Library
Version of February 2016