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FunctX XSLT Functions

functx:value-except

The values in one sequence that aren't in another sequence

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Description

The functx:value-except function returns the values in one sequence that do not appear in the second sequence, in an implementation-defined order. It removes duplicates, even among the values that appear only in the first sequence. This function is useful because the built-in except operator only works on nodes, not atomic values.

Arguments and Return Type

NameTypeDescription
$arg1 xs:anyAtomicType* the first sequence
$arg2 xs:anyAtomicType* the second sequence
return value xs:anyAtomicType*

XSLT Function Declaration

See XQuery definition.
XSLT 2.0 Syntax:
<xsl:function name="functx:value-except" as="xs:anyAtomicType*"
              xmlns:functx="http://www.functx.com" >
  <xsl:param name="arg1" as="xs:anyAtomicType*"/>
  <xsl:param name="arg2" as="xs:anyAtomicType*"/>

  <xsl:sequence select="
  distinct-values($arg1[not(.=$arg2)])
 "/>

</xsl:function>

Examples

XSLT ExampleResults
functx:value-except((1,2,3),(3,4,5))
(1, 2)
functx:value-except((1,1,2,3),(2,3))
1
functx:value-except((1,2),(3,4))
(1, 2)
functx:value-except((1,2,2,3),())
(1, 2, 3)

See Also

functx:value-unionThe union of two sequences of values
functx:value-intersectThe intersection of two sequences of values

History

Published OnLast UpdatedContributor(s)
2006-06-272007-02-26W3C XML Query Working Group, XQuery 1.0 and XPath 2.0 Functions and Operators, http://www.w3.org/TR/xpath-functions/
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