DefaultURI (XmlDoc/XmlNode function)

Default URI in scope at selected node (XmlDoc and XmlNode classes)

DefaultURI is a member of the XmlDoc and XmlNode classes.

This function gets the Uniform Resource Identifier (URI) associated with the default namespace declaration that is in scope at a node that is the head of an XPath result.

The DefaultURI function is new as of version 6.9 of the Sirius Mods.

Syntax

%unicode = nr:DefaultURI[( [xpath])] Throws XPathError

Syntax terms

%uri	A string variable for the returned URI.
nr	An XmlDoc or XmlNode, used as the context node for the XPath expression. If an XmlDoc, the Root node is the context node.
XPath	A Unicode string that is an XPath expression that results in a nodelist. The head of the nodelist is the node to process. An optional argument, its default is a period (.), that is, the node referenced by the method object (nr). Prior to Sirius Mods version 7.6, this is an EBCDIC string.

In the following example, two elements are added along with their namespace URIs, but only the second added element, which has no prefix, has a default namespace URI:

    Begin
    %d Object XmlDoc Auto New
    %n Object XmlNode
    %n2 Object XmlNode
    %n = %d:AddElement('p:top', , 'urn:top')
    %n2 = %n:AddElement('inner', , 'urn:default')
    %n:Print
    Print 'URI of p:top default namespace =' And %n:DefaultURI
    Print 'URI of inner default namespace =' And %n2:DefaultURI
    End

The following lines are printed:

    <p:top xmlns:p="urn:top">
      <inner xmlns="urn:default"/>
    </p:top>
    URI of p:top default namespace =
    URI of inner default namespace = urn:default

Request-Cancellation Errors

• XmlDoc Namespace property not On.
• XPath is invalid.
• Result of (XPath) is empty.
• Insufficient free space exists in CCATEMP.

See Also

• For more information about using XPath expressions, see XPath.
• For more information about namespace declarations, see ?? refid=namsp..
• For more information about URIs, see ?? refid=nsuri..
• The PrefixURI method (?? refid=prefuri.) returns the URI bound to a node's prefix (or the default URI, if a node has a default namespace declaration). The URI method (?? refid=uri.) returns the URI bound to a node's name, if any.
• These methods add namespace URIs to XmlDoc nodes:
  • AddElement
  • AddAttribute
  • AddNamespace