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RE: last() and distinct-values 2.0

2004-10-26 20:30:09
Hi Michael,

Thanks for that. I tried your suggested workaround and everything is great.

I was playing with namespaces before because I was wondering why the distinct-nodes function wasn't found (I realise now it only existed in a draft 2.0 spec).

glad I could help bug hunting.

cya,
Jurn

At 08:58 AM 27/10/2004, Michael Kay wrote:
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(_at_)magicmonster(_dot_)com]
> Sent: 26 October 2004 03:09
> To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
> Subject: [xsl] 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>



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