Partager via


Creating CDATA Sections (Windows Embedded CE 6.0)

1/6/2010

CDATA sections allow you to use sequences of characters within an XML stream that contain markup elements common to XML without violating XML well-formed constraints. For example, a mathematical XML application using < and > characters to refer to less-than and greater-than can use a CDATA section.

You can specify that a given element in the result tree will contain a CDATA section by including it in the cdata-section-elements attribute of the <xsl:output> element. The CDATA section created in this way will preserve white space and character entities.

The following is an XML fragment.

<document>
  <scriptcode language="JScript">
    function message(msg)
    {
      alert(msg);
    }
  </scriptcode>
</document>

The following style sheet will be applied to an XML document containing the preceding fragment.

<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
  <xsl:output cdata-section-elements="script/>
  <xsl:template match="scriptcode">
    <document>
      <script language="JScript">
        <xsl:value-of select="."/>
      </script>
    </document>
  </xsl:template>
</xsl:stylesheet>

The XSL Transformations (XSLT) processor scans the result tree, making a CDATA section of each item in the cdata-section-elements attribute.

<document>
  <script language="Javascript"><![CDATA[
    function message(msg)
    {
      alert(msg);
    }
  ]]</script>
</document>

Note

To create the CDATA section, the elements listed as values of the cdata-section-elements attribute must be elements in the result tree, not the source tree. In the preceding examples, the Microsoft JScript® code appears as a text node within the source tree's <scriptcode> element, but the cdata-section-elements attribute refers to and affects <script> elements in the result tree.

HTML does not recognize CDATA sections. Do not use this option when generating HTML.

See Also

Concepts

Controlling White Space with XSLT