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functx:namespaces-in-use

A list of namespaces used in element/attribute names in an XML fragment

Description

The functx:namespaces-in-use function returns a list of all the namespaces used in element and attribute names in the scope of $root. It does not include namespaces that are declared but not used, or ones that are used in names that are the content (as opposed to the names) of elements or attributes.

Arguments and Return Type

XQuery Function Declaration

declare namespace functx = "http://www.functx.com";
declare function functx:namespaces-in-use
  ( $root as node()? )  as xs:anyURI* {

   distinct-values(
      $root/descendant-or-self::*/(.|@*)/namespace-uri(.))
 } ;

Examples

<authors xmlns="abc" xmlns:d="def">
   <author xmlns="ghi">
      <fName xmlns:x="xyz" x:attr="123">Kate</fName>
      <lName>Jones</lName>
   </author>
</authors>

functx:namespaces-in-use($in-xml)

(abc, ghi, xyz)

See Also

History