Description
The functx:distinct-attribute-names function returns the distinct set of attribute names that exist on nodes in $nodes or their descendants.
Arguments and Return Type| Name | Type | Description |
|---|
$nodes |
node()* |
the root to start from |
| return value |
xs:string* |
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:distinct-attribute-names
( $nodes as node()* ) as xs:string* {
distinct-values($nodes//@*/name(.))
} ; | | XQuery Syntax for July 2004: |
|---|
declare namespace functx = "http://www.functx.com";
declare function functx:distinct-attribute-names
( $nodes as node()* ) as xs:string* {
distinct-values(for $attr in $nodes//@*
return name($attr))
} ; | | XQuery Syntax for May 2003: |
|---|
declare namespace functx = "http://www.functx.com"
define function distinct-attribute-names
( $nodes as node()* ) as xs:string* {
fn:distinct-values(for $attr in $nodes//@*
return fn:name($attr))
} |
Exampleslet $in-xml := | <authors a1="xyz">
<author a2="abc">
<fName a3="def">Kate</fName>
<lName>Jones</lName>
</author>
<author>
<fName a3="def">John</fName>
<lName>Doe</lName>
</author>
</authors> | return |
| XQuery Example | Results |
|---|
functx:distinct-attribute-names($in-xml)
|
('a1', 'a2', 'a3')
|
See AlsoHistory |
|
