FunctX XSLT Function Library > Sequences > Combining >

functx:value-except

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

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

XSLT Function Declaration

<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

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

History