<msxsl:script> Element

Contains script blocks, so that custom functions can be used in an XSLT transformation. This is a top-level element.

<msxsl:script
  language = "language-name"
  implements-prefix = "prefix of user's namespace">
</msxsl:script>

Attributes

language

The Active Scripting language used for the functions defined within this element. If left unspecified, Microsoft® JScript® (compatible with ECMA 262 language specification) is used. This attribute accepts the same values as the language attribute on the HTML <SCRIPT> element.

implements-prefix

Required. Declares a namespace and associates it with the script block. The value of this attribute is the prefix that represents the namespace.

Element Information

Remarks

The <msxsl:script> element belongs to the namespace urn:schemas-microsoft-com:xslt. You can declare variables and define functions within this element. This element can appear within the <xsl:stylesheet> element. A script block thus nested is treated as a global script block.

You can also instantiate COM objects in the <msxsl:script> element. However, a user's security settings might prevent your script from instantiating a client-side object.

For high performance, avoid script blocks from XSLT files, because they require loading the script engine multiple times. Instead, create a COM object that is equivalent to the script, producing a DLL. Then use addObject and pass the DLL.

Example

This example illustrates how to use <msxsl:script> to define a script block with a namespace prefix of user to declare a function called xml(). The xml() function takes a node-list as an argument. Notice how this function, xml(nodelist) in the user namespace, is called from the select attribute of <xsl:value-of>.

Note   To test this example in Internet Explorer, you need to use a script. For more information, see Initiate XSLT in a Script.

XML File (customers.xml)

<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="script.xsl" ?>
<customers>
   <customer>
      <name>John Smith</name>
      <address>123 Elm St.</address>
      <phone>(123) 456-7890</phone>
   </customer>
   <customer>
      <name>Mary Jones</name>
      <address>456 Oak Ave.</address>
      <phone>(156) 789-0123</phone>
   </customer>
</customers>

XSLT File (script.xsl)

<?xml version='1.0'?>
<xsl:stylesheet version="1.0"
      xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
      xmlns:msxsl="urn:schemas-microsoft-com:xslt"
      xmlns:user="http://mycompany.com/mynamespace">

<msxsl:script language="JScript" implements-prefix="user">
   function xml(nodelist) {
      return nodelist.nextNode().xml;
   }
</msxsl:script>

<xsl:template match="/">
   <xsl:value-of select="user:xml(.)"/>
</xsl:template>

</xsl:stylesheet>

Output

This is the formatted output:

<?xml version="1.0"?> <?xml-stylesheet type="text/xsl" href="script.xsl" ?> <customers> <customer> <name>John Smith</name> <address>123 Elm St.</address> <phone>(123) 456-7890</phone> </customer> <customer> <name>Mary Jones</name> <address>456 Oak Ave.</address> <phone>(156) 789-0123</phone> </customer> </customers>

This is the processor output:

<?xml version="1.0" encoding="UTF-16"?>&lt;?xml version="1.0"?&gt;
&lt;?xml-stylesheet type="text/xsl" href="script.xsl" ?&gt;
&lt;customers&gt;
 &lt;customer&gt;
  &lt;name&gt;John Smith&lt;/name&gt;
  &lt;address&gt;123 Elm St.&lt;/address&gt;
  &lt;phone&gt;(123) 456-7890&lt;/phone&gt;
 &lt;/customer&gt;
 &lt;customer&gt;
  &lt;name&gt;Mary Jones&lt;/name&gt;
  &lt;address&gt;456 Oak Ave.&lt;/address&gt;
  &lt;phone&gt;(156) 789-0123&lt;/phone&gt;
 &lt;/customer&gt;
&lt;/customers&gt;

See Also

<xsl:value-of> Element