para matches any para element
* matches any element
chapter|appendix matches any chapter
element and any appendix element
olist/item matches any item element with
an olist parent
appendix//para matches any para element
with an appendix ancestor element
/ matches the root node
text() matches any text node
processing-instruction() matches any processing
instruction
node() matches any node other than an attribute node
and the root node
id("W11") matches the element with unique ID
W11
para[1] matches any para element that is
the first para child element of its parent
*[position()=1 and self::para] matches any
para element that is the first child element of its
parent
para[last()=1] matches any para element
that is the only para child element of its parent
items/item[position()>1] matches any
item element that has a items parent and that
is not the first item child of its parent
item[position() mod 2 = 1] would be true for any
item element that is an odd-numbered item child
of its parent.
div[@class="appendix"]//p matches any p
element with a div ancestor element that has a
class attribute with value appendix
@class matches any class attribute
(not any element that has a class attribute)
@* matches any attribute
