Description
The functx:index-of-node function returns one or more integers representing the position of an XML node within a sequence of nodes. It is based entirely on node identity, not the value or content of the nodes.
Arguments and Return Type| Name | Type | Description |
|---|
$nodes |
node()* |
the node sequence |
$nodeToFind |
node() |
the node to find in the sequence |
| return value |
xs:integer* |
XQuery Function Declaration| See XSLT definition. | declare namespace functx = "http://www.functx.com";
declare function functx:index-of-node
( $nodes as node()* ,
$nodeToFind as node() ) as xs:integer* {
for $seq in (1 to count($nodes))
return $seq[$nodes[$seq] is $nodeToFind]
} ; |
Exampleslet $in-xml := | <authors>
<author>
<fName>Kate</fName>
<lName>Jones</lName>
</author>
<author>
<fName>John</fName>
<lName>Doe</lName>
</author>
</authors> | return |
| XQuery Example | Results |
|---|
functx:index-of-node(
$in-xml/author,$in-xml/author[1]) |
1 |
functx:index-of-node(
$in-xml/author,$in-xml/author[2]) |
2 |
functx:index-of-node(
$in-xml/author,
$in-xml/author[lName='Doe']) |
2 |
See AlsoHistory| Published On | Last Updated | Contributor(s) |
|---|
| 2006-06-27 | 2007-02-26 | W3C XML Query Working Group, XQuery 1.0 and XPath 2.0 Functions and Operators, http://www.w3.org/TR/xpath-functions/(parameter names changed for clarity) |
|
Recommended Reading: 
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