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XSLT function-available () function

XSLT Function Reference objects Complete XSLT Function Reference objects

Definition and Usage

function-available () function returns a Boolean value that indicates whether the XSLT processor supports the specified function.

You can test the function of XSLT and XPath functions inherited.


grammar

boolean function-available(string)

parameter

参数 描述
string 必需。规定要测试的函数。

Example 1

<?xml version="1.0" encoding="ISO-8859-1"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">

<xsl:template match="/">
<html>
<body>
<xsl:choose>
<xsl:when test="function-available('sum')">
<p>sum() is supported.</p>
</xsl:when>
<xsl:otherwise>
<p>sum() is not supported.</p>
</xsl:otherwise>
</xsl:choose>
<xsl:choose>
<xsl:when test="function-available('current')">
<p>current() is supported.</p>
</xsl:when>
<xsl:otherwise>
<p>current() is not supported.</p>
</xsl:otherwise>
</xsl:choose>
</body>
</html>
</xsl:template>

</xsl:stylesheet>

See XSL file , view the results .


XSLT Function Reference objects Complete XSLT Function Reference objects