RE: Question about the key() function

Because there is a bug in your XSLT processor. The correct output is:

Saxon 8.4 from Saxonica
...
<?xml version="1.0" encoding="UTF-8"?>
<keyNode>
   <Name>1, Frisby, 48392</Name>
   <Name>10, Backstayge, 02718</Name>
   <Name>2, Attired, 00218</Name>
   <Name>20, Backstayge, 02718</Name>
   <Name>300, McGoon, 27318</Name>
   <Name>31, Reckonwith, 02930</Name>
</keyNode>

The key() function is specified to remove duplicates, it appears your
implementation is not doing so.

Michael Kay
http://www.saxonica.com/

 

> -----Original Message-----
> From: aspsa [mailto:aspsa@xxxxxxxxxxxxx] 
> Sent: 13 May 2005 22:14
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject:  Question about the key() function
> 
> Hi, folks.
> 
> Given this document...
> 
> <?xml version="1.0" encoding="UTF-8"?>
> <addressbook>
>  <address>
>   <name>
>    <title>Mr.</title>
>    <first-name>Chester Hasbrouck</first-name>
>    <last-name>Frisby</last-name>
>   </name>
>   <street>1234 Main Street</street>
>   <city>Sheboygan</city>
>   <state>WI</state>
>   <zip>48392</zip>
>   <id>1</id>
>  </address>
>  <address>
>   <name>
>    <first-name>Mary</first-name>
>    <last-name>Backstayge</last-name>
>   </name>
>   <street>283 First Avenue</street>
>   <city>Skunk Haven</city>
>   <state>MA</state>
>   <zip>02718</zip>
>   <id>10</id>
>  </address>
>  <address>
>   <name>
>    <title>Ms.</title>
>     <first-name>Natalie</first-name>
>     <last-name>Attired</last-name>
>   </name>
>   <street>707 Breitling Way</street>
>   <city>Winter Harbor</city>
>   <state>ME</state>
>   <zip>00218</zip>
>   <id>2</id>
>  </address>
>  <address>
>   <name>
>    <first-name>Harry</first-name>
>    <last-name>Backstayge</last-name>
>   </name>
>   <street>283 First Avenue</street>
>   <city>Skunk Haven</city>
>   <state>MA</state>
>   <zip>02718</zip>
>   <id>20</id>
>  </address>
>  <address>
>   <name>
>    <first-name>Mary</first-name>
>    <last-name>McGoon</last-name>
>   </name>
>   <street>103 Bryant Street</street>
>   <city>Boylston</city>
>   <state>VA</state>
>   <zip>27318</zip>
>   <id>300</id>
>  </address>
>  <address>
>   <name>
>    <title>Ms.</title>
>    <first-name>Amanda</first-name>
>    <last-name>Reckonwith</last-name>
>   </name>
>   <street>930-A Chestnut Street</street>
>   <city>Lynn</city>
>   <state>MA</state>
>   <zip>02930</zip>
>   <id>31</id>
>  </address>
> </addressbook>
> 
> ...and this XSLT document...
> 
> <?xml version="1.0" encoding="UTF-8"?>
> <xsl:stylesheet version="1.0"
> xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
>  <xsl:output method="xml" version="1.0" encoding="UTF-8" 
> indent="yes"/>
>  <xsl:key name="x" match="address" use="zip"/>
> 
>  <xsl:template match="/">
>   <keyNode>
>    <xsl:apply-templates select="key('x',addressbook/address/zip)" />
>   </keyNode>
>  </xsl:template>
> 
>  <xsl:template match="address">
>   <Name>
>    <xsl:value-of select="id"/>
>    <xsl:text>, </xsl:text>
>    <xsl:value-of select="name/last-name"/>
>    <xsl:text>, </xsl:text>
>    <xsl:value-of select="zip"/>
>   </Name>
>  </xsl:template>
> </xsl:stylesheet>
> 
> ...why does the output repeat nodes containing id values 10 and 20?
> 
> <?xml version="1.0" encoding="UTF-8"?>
> <keyNode>
>  <Name>1, Frisby, 48392</Name>
>  <Name>10, Backstayge, 02718</Name>
>  <Name>10, Backstayge, 02718</Name>
>  <Name>2, Attired, 00218</Name>
>  <Name>20, Backstayge, 02718</Name>
>  <Name>20, Backstayge, 02718</Name>
>  <Name>300, McGoon, 27318</Name>
>  <Name>31, Reckonwith, 02930</Name>
> </keyNode>
> 
> 
> Respectfully,
> 
> ASP