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XSLT element-available() Function

XSLT element-available() Function​

The element-available function returns a Boolean value that indicates whether the element specified is supported by the XSLT processor.

This function can only be used to test elements that may be present in the body of a template. These elements are:

  • xsl:apply-imports
  • xsl:apply-templates
  • xsl:attributes
  • xsl:call-template
  • xsl:choose
  • xsl:comment
  • xsl:copy
  • xsl:copy-of
  • xsl:element
  • xsl:fallback
  • xsl:for-each
  • xsl:if
  • xsl:message
  • xsl:number
  • xsl:processing instruction
  • xsl:text
  • xsl:value-of
  • xsl:variable

Syntax​

boolean element-available(string)

Input Parameters​

ParameterRequired/OptionalDescription
stringRequiredSpecifies the element to test

Example​

example.xsl
<?xml version="1.0" encoding="UTF-8"?>  
<xsl:stylesheet version="1.0"  
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">  
  
<xsl:template match="/">  
	<html>  
		<body>  
			<xsl:choose>  
				<xsl:when test="element-available('xsl:comment')">  
					<p>xsl:comment is supported.</p>  
				</xsl:when>  
				<xsl:otherwise>  
					<p>xsl:comment is not supported.</p>  
				</xsl:otherwise>  
			</xsl:choose>  
			<xsl:choose>  
				<xsl:when test="element-available('xsl:delete')">  
					<p>xsl:delete is supported.</p>  
				</xsl:when>  
				<xsl:otherwise>  
					<p>xsl:delete is not supported.</p>  
				</xsl:otherwise>  
			</xsl:choose>  
		</body>  
	</html>  
</xsl:template>  
  
</xsl:stylesheet>

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