- and @c wxXML_ELEMENT_NODE (e.g. in @c \<title\>hi\</title\> there is an element
- with name="title", irrelevant content and one child @c wxXML_TEXT_NODE
- with content="hi").
+ and @c wxXML_ELEMENT_NODE.
+
+ Example: in <tt>\<title\>hi\</title\></tt> there is an element with the name
+ @c title and irrelevant content and one child of type @c wxXML_TEXT_NODE
+ with @c hi as content.
+
+ The @c wxXML_PI_NODE type sets the name to the PI target and the contents to
+ the instructions. Note that whilst the PI instructions are often in the form
+ of pseudo-attributes these do not use the nodes attribute system. It is the users
+ responsibility to code and decode the instruction text.