XML functions

This section contains the list of XML functions and a brief description of each function.

Table 1. Table of XML functions and their descriptions
Function What it does
is_wellformed Takes a string expression and checks that it is well formed XML.
xmlencode Converts an XML field to a string expression.
xmldecode Converts a string expression to XML.

is_wellformed

Checks that a string expression is syntactically correct XML. Returns true (Boolean) if the resulting string is well formed XML. Note that an XML field can be used to create string expressions.

Use the following syntax:
is_wellformed (string_expr)
where string_expr is either a string expression or an XML field.

xmlencode

Converts from XML to standard string format, encoding all the XML special characters. The resulting string can be used as a string in an XML message.

Use the following syntax:
xmlencode (string_expr)
where string_expr is either a string expression or an XML field.

In the example below, string_expr is an XML data field with the value shown under XML format. The string format is the result.

Table 2. Table of XML format and the resulting string format
XML format String format 
<?xml version="1.0" encoding="UTF-8"?>
<!-- edited with XMLSPY v5 U 
(http://www.xmlspy.com) by FileNET Corp. 
(FileNET Corp.) -->
<xs:schema xmlns:xs="http://www.w3.org
/2001/XMLSchema" elementFormDefault="qualified"
attributeFormDefault="unqualified">
	<xs:element name="VehicleReply">
		<xs:annotation>
			<xs:documentation>Root</xs:documentation>
	    </xs:annotation>
		<xs:complexType>
			<xs:sequence>
				<xs:element name="Owner_reply" 
type="xs:string"/>
				<xs:element name="VIN_reply" 
type="xs:string"/>
				<xs:element name="RegNumber_reply" 
type="xs:string"/>
				<xs:element name="RegFee_reply" 
type="xs:float"/>
			</xs:sequence>
		</xs:complexType>
	</xs:element>
</xs:schema>
 &lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?&gt;&#10;&lt;!-- edited with XMLSPY v5 U (http://www.xmlspy.com) by FileNET Corp. (FileNET Corp.) --&gt;&#10;&lt;xs:schema attributeFormDefault=&quot;unqualified&quot;&#10; elementFormDefault=&quot;qualified&quot; xmlns:xs=&quot;http://www.w3.org/2001/XMLSchema&quot;&gt;&#10; &lt;xs:element name=&quot;VehicleReply&quot;&gt;&#10; &lt;xs:annotation&gt;&#10; &lt;xs:documentation&gt;Root&lt;/xs:documentation&gt;&#10; &lt;/xs:annotation&gt;&#10; &lt;xs:complexType&gt;&#10; &lt;xs:sequence&gt;&#10; &lt;xs:element name=&quot;Owner_reply&quot; type=&quot;xs:string&quot;/&gt;&#10; &lt;xs:element name=&quot;VIN_reply&quot; type=&quot;xs:string&quot;/&gt;&#10; &lt;xs:element name=&quot;RegNumber_reply&quot; type=&quot;xs:string&quot;/&gt;&#10; &lt;xs:element name=&quot;RegFee_reply&quot; type=&quot;xs:float&quot;/&gt;&#10; &lt;/xs:sequence&gt;&#10; &lt;/xs:complexType&gt;&#10; &lt;/xs:element&gt;&#10;&lt;/xs:schema&gt;

xmldecode

Converts from string format to XML format.

Use the following syntax:
xmldecode (string_expr)
where string_expr is either a string expression or an XML field.