XQuery 1.0 and XPath 2.0 Functions and Operators
  - Defines all functions accessible from XQuery/XPath/XSLT
    
      - XPath 1.0 functions
 
      - + XSLT 1.0 functions
 
      - + functions for XML Schema primitive data types
 
      - + new functions
 
    
   
  - Also defines functions that backstop operators that are in the host
    languages
 
  - Defines some new data types needed to define operators