Description
The functx:max-depth function returns the maximum level of elements within a document, as an integer. 1 represents the root, 2 is a child of the root, etc. If $root is a document node, it is counted as a level. Text and other kinds of nodes are not counted as a level.
Arguments and Return Type| Name | Type | Description |
|---|
$root |
node()? |
the root to start from |
| return value |
xs:integer? |
XQuery Function Declaration| See XSLT definition. | | XQuery Syntax for April 2005 - January 2007 (1.0): |
|---|
declare namespace functx = "http://www.functx.com";
declare function functx:max-depth
( $root as node()? ) as xs:integer? {
if ($root/*)
then max($root/*/functx:max-depth(.)) + 1
else 1
} ; | | XQuery Syntax for July 2004: |
|---|
declare namespace functx = "http://www.functx.com";
declare function functx:max-depth
( $root as node()? ) as xs:integer? {
if ($root/*)
then max(for $node in $root/*
return functx:max-depth($node)) + 1
else 1
} ; | | XQuery Syntax for May 2003: |
|---|
declare namespace functx = "http://www.functx.com"
define function max-depth
( $root as node()? ) as xs:integer? {
if ($root/*)
then fn:max(for $node in $root/*
return functx:max-depth($node)) + 1
else 1
} |
Exampleslet $in-xml := | <authors>
<author>
<fName>Kate</fName>
<lName>Jones</lName>
</author>
<author>
<fName>John</fName>
<lName>Doe</lName>
</author>
</authors> | return |
| XQuery Example | Results |
|---|
functx:max-depth($in-xml)
|
3
|
functx:max-depth($in-xml/author[1])
|
2
|
See AlsoHistory |
|
