RE: extracting unique elements

[James Garriss <jgarriss at mitre dot org>]

At 04:46 AM 1/28/2000 , Kay Michael wrote:
 >> Is there any easy way to select only the unique elements from
 >> an xml document.
 >
 ><xsl:for-each select="//CUSTOMER[not(.=preceding::CUSTOMER)]">
 ><xsl:value-of select="."/>
 ></xsl:for-each>

Doesn't this require the CUSTOMER elements to be sorted?

 >> <SALESFORCE>
 >>      <SALESPERSON NAME="BOB">
 >>           <CUSTOMER CODE="1">ACME</CUSTOMER>
 >>           <CUSTOMER CODE="2">BLAMMO</CUSTOMER>
 >>      </SALESPERSON>
 >>      <SALESPERSON NAME="TODD">
 >>           <CUSTOMER CODE="1">ACME</CUSTOMER>
 >>           <CUSTOMER CODE="3">KABLOOEY</CUSTOMER>
 >>      </SALESPERSON>
 >>      <SALESPERSON NAME="BETTY">
 >>           <CUSTOMER CODE="4">JUICY JUICY</CUSTOMER>
 >>           <CUSTOMER CODE="2">BLAMMO</CUSTOMER>
 >>      </SALESPERSON>
 >> </SALESFORCE>
 >>
 >> I would want to only display:
 >>
 >> ACME
 >> BLAMMO
 >> KABLOOEY
 >> JUICY JUICY


   James Garriss | The MITRE Corporation | jgarriss @ mitre.org



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