FunctX XSLT Function Library > Sequences > Combining >

functx:value-intersect

The intersection of two sequences of values

Description

The functx:value-intersect function returns the intersection of the values in two sequences (values that appear in both sequences) in an implementation-defined order. It removes duplicates. This function is useful because the built-in intersect operator only works on nodes, not atomic values.

Arguments and Return Type

XSLT Function Declaration

<xsl:function name="functx:value-intersect" 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($arg1[.=$arg2])
 "/>

</xsl:function>

Examples

functx:value-intersect((1,2),(2,3))

2

functx:value-intersect((1,2,3),(2,3,4))

(2, 3)

functx:value-intersect((1,2,2,3),(2,3))

(2, 3)

functx:value-intersect((1,2,2,3),())

()

See Also

History