RE: last() and distinct-values 2.0

I have now solved this bug: it's rather subtle. I won't be publishing a
source fix because it's too extensive. As a circumvention, it will probably
work if you put the results of distinct-values() in a variable.

Details of the bug are at
http://sourceforge.net/tracker/index.php?func=detail&aid=1054919&group_id=29
872&atid=397617

Sorry about the inconvenience.

Michael Kay
 

> -----Original Message-----
> From: Jurn Ho [mailto:jurn@xxxxxxxxxxxxxxxx] 
> Sent: 26 October 2004 03:09
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject:  last() and distinct-values 2.0
> 
> Hi,
> 
> I'm trying to change our stylesheets over to 2.0 and saxon 8, but am 
> getting confused about the behaviour of the last() function.
> My test case is below, it has a variable called $languages, with many 
> <lang> elements.
> I wanted to get the 3 distinct languages from there.
> If I comment out the last() function, it works as I expect, 
> but when I add 
> the last() function inside the for-each loop I get it 
> returning '2', and 
> only get 1 iteration from the loop.
> I expect the last() function to return 3.
> 
> Any suggestions/hints would be welcome
> 
> thanks,
> Jurn
> 
> <?xml version="1.0"?>
> <xsl:stylesheet version="2.0"
>                  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
>                  xmlns:fn="http://www.w3.org/2003/11/xpath-functions">
>    <xsl:template match="/">
>      <xsl:variable name="languages">
>        <lang>English</lang>
>        <lang>English</lang>
>        <lang>Chinese</lang>
>        <lang>French</lang>
>        <lang>French</lang>
>        <lang>Chinese</lang>
>        <lang>French</lang>
>        <lang>Chinese</lang>
>      </xsl:variable>
>      <xsl:for-each select="fn:distinct-values($languages/lang)">
>        <xsl:value-of select="position()"/>,
>        <xsl:value-of select="."/>,
>        <xsl:value-of select="last()"/>
>        --
>      </xsl:for-each>
>    </xsl:template>
> </xsl:stylesheet>