index.on.type
— Select indexterms based on type
attribute value
If non-zero,
then an index
element that has a
type
attribute
value will contain only those indexterm
elements with a matching type
attribute value.
If an index
has no type
attribute or it is blank, then the index will contain
all indexterm
s in the current scope.
If index.on.type
is zero, then the
type
attribute has no effect
on selecting indexterms for an index.
For those using DocBook version 4.2 or earlier,
the type
attribute is not available
for index terms. However, you can achieve the same
effect by using the role
attribute
in the same manner on indexterm
and index
, and setting the stylesheet parameter
index.on.role
to a nonzero value.