At 2010-01-05 13:41 -0500, Houghton,Andrew wrote:
I have a sequence of strings, e.g., ('abc', 'def', 'def', 'ghi'),
and I want to create a new sequence that will have only the unique
strings in it. The XSL 2.0 function distinct-values is not what I
want because:
<xsl:variable name="list" as="xsd:string*" select="('abc', 'def',
'def', 'ghi')" />
<xsl:variable name="uniq" as="xsd:string*"
select="distinct-values($list)" />
will result in a sequence of ('abc', 'def', 'ghi') which is not what
I'm looking for. What I am looking for is the sequence ('abc',
'ghi'). Unix people will recognize that distinct-values() returns
the result of the uniq command without any options. While what I'm
looking for is the result of the uniq command with the -u option.
Can anyone suggest how I might use one or more XSL 2.0 functions to
return only the unique strings.
I hope the solution below helps.
. . . . . . . Ken
T:\ftemp>xslt2 andy.xsl andy.xsl
abc ghi
T:\ftemp>type andy.xsl
<?xml version="1.0" encoding="US-ASCII"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
xmlns:xsd="http://www.w3.org/2001/XMLSchema";
version="2.0">
<xsl:output method="text"/>
<xsl:template match="/">
<xsl:variable name="list" as="xsd:string*"
select="('abc', 'def', 'def', 'ghi')"/>
<xsl:variable name="uniq" as="xsd:string*"
select="for $each in $list return
if( count($list[.=$each])=1 ) then $each else ()"/>
<xsl:value-of select="$uniq"/>
</xsl:template>
</xsl:stylesheet>
T:\ftemp>
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