Sets (set)

XSLT/XPath Reference: XSLT elements, EXSLT functions, XPath functions, XPath axes

The EXSLT Sets package offers functions that let you perform set manipulation. The namespace for these functions is http://exslt.org/sets.

set:difference(): set:difference() returns the difference between two node-sets. In other words, it returns a node-set whose nodes are in one node-set but not in the other.
set:distinct(): set:distinct() returns a subset of the nodes in the specified node-set, returning only nodes with unique string values.
set:has-same-node(): set:has-same-node() determines whether two node-sets have any nodes in common.
set:intersection(): set:intersection() returns the intersection of two node-sets. In other words, it returns a node-set containing all the nodes that exist in both nodeSet1 and nodeSet2.
set:leading(): set:leading() returns the nodes in one node-set that come before the first node in the other node-set.
set:trailing(): set:trailing() returns the nodes in one node-set that come after the first node in the other node-set.