This appendix provides a summary of the XPath 2.0 syntax, for use as a quick reference guide. A full description of each construct is provided in the companion book XPath 2.0 Programmer's Reference.
There are four tables:
Tokens
Lists the lexical symbols in the XPath language.
Syntax Productions
Lists the BNF production rules defining the XPath grammar.
Operators
Lists the operators in the XPath language, with their precedence and a quick summary of the effect of each operator.
Axes
Lists the 13 axes used in XPath for navigating a tree.
Appendix B contains a list of all the functions in the core function library.