Essential XML: Beyond Markup

2. Information Items

The XML information set can contain fifteen different types of information items:

1. a document information item (core)

2. element information items (core)

3. attribute information items (core)

4. processing instruction information items (core)

5. reference to skipped entity information items (core)

6. character information items (core)

7. comment information items (peripheral)

8. a document type declaration information item (peripheral)

9. entity information items (core for unparsed entities, peripheral for others)

10. notation information items (core)

11. entity start marker information items (peripheral)

12. entity end marker information items (peripheral)

13. CDATA start marker information items (peripheral)

14. CDATA end marker information items (peripheral)

15. namespace declaration ...