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Passing parameters to user-defined functions

User-defined functions accept parameters in the same way as templates via xsl:param elements.

XSLT

      <xsl:stylesheet
                  xmlns:my="myFunctions"
                  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                  version="2.0"
                  exclude-result-prefixes="my">
            <xsl:output  method="xml"
                        indent="yes"
                        omit-xml-declaration="yes"/>

            <xsl:function  name="my:multiply">
                  <xsl:param  name="a"/>
                  <xsl:param  name="b"/>
                  <xsl:param  name="c"/>
                  <xsl:value-of  select="$a,$b,$c"
                              separator=" * "/>
                  <xsl:text> = </xsl:text>
                  <xsl:value-of  select="$a * $b * $c"/>
            </xsl:function>

            <xsl:template  match="/aaa">
                  <xsl:value-of  select="my:multiply(2,3,4)"/>
            </xsl:template>

      </xsl:stylesheet>
XML

      <aaa/>
Output
2 * 3 * 4 = 24


Previous chapter: Variables and Parameters
Next chapter: Comparisons
Previous page: Declaration of stylesheet functions
Next page: Correspondence between function arguments and parameters

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