functx:is-node-among-descendants
Whether an XML node is among the descendants of a sequence, based on node identity
Description
The functx:is-node-among-descendants function returns a boolean value indicating whether or not a node is in the specified sequence, or among the descendants of nodes in a sequence, based on node identity. If $node or $seq is the empty sequence, it returns false.
Nodes are identified based on node identity, not their contents. For a similar function based on the contents of a node, see functx:is-node-among-descendants-deep-equal.
Parameters |
Description |
|---|---|
node:node() |
the node to test |
seq:node() |
the sequence of nodes to search |
Examples
XPath |
Results |
|---|---|
functx:is-node-among-descendants($in-xml/price[1],$in-xml) |
true |
functx:is-node-among-descendants($in-xml,$in-xml/price[1]) |
false |
functx:is-node-among-descendants($in-xml,$in-xml) |
true |
functx:is-node-among-descendants($aPrice,$in-xml) |
false |