<index-base> element allows indexing extensions to be added by
specializing this element.
<index-base> element can only exist as a child of an
<indexterm> element. This characteristic makes it the appropriate
element to specialize to add indexing extensions. For example, the
elements only make
sense as children of
<indexterm> and so are specializations of
<index-base>. Those elements are all part of the indexing domain
On its own,
<index-base> has no meaning. Processors should ignore this
element and its content if encountered in its unspecialized form.
See appendix for information about this element in OASIS document type shells.
► This element is not intended to be used in source files. ◄
<index-see-also> element is specialized from
<index-base>; see index-see-also
for an example
can be used with specialization.