Re: Count() elements in range

From: "M. David Peterson" <conners_dad@xxxxxxx>
Reply-To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
To: <xsl-list@xxxxxxxxxxxxxxxxxxxxxx>
Subject: Re:  Count() elements in range
Date: Wed, 15 Oct 2003 21:05:10 -0600

Chris,

At first glance I noticed you have following-sibling wrapped in parentheses.
The only time you will use parentheses is when you are invoking a function.
In this case you are just searching for a particular node using a standard
XPath expression.

So, this...

<xsl:when test="(following-sibling::element[1][child::flag]) or
> (count(following-sibling::element) = 0)">

should read like this...

<xsl:when test="following-sibling::element[1][child::flag] |
count(following-sibling::element) = 0)">

Im rushing out the door and don't have time to look to see what other issues
you might have or what solutions would work best but if I get back and this
hasn't helped or someone else hasn't been able to help I will take another
look at it.

Best regards,

M.

----- Original Message -----
From: <Chris.Pearson@xxxxxxxxxxxx>
To: <XSL-List@xxxxxxxxxxxxxxxxxxxxxx>
Sent: Wednesday, October 15, 2003 6:33 PM
Subject:  Count() elements in range

> I am wrestling with a problem related to counting a specific range of
> elements in a source document. I've tried searching the archives, but I
> was
> unable to locate any past discussions that appeared relevant.
>
>
> Problem: count the number of <element> nodes in the tree starting from the
> last <element> or the last <element> whose following-sibling::element does
> not have a child <flag>. I think my issue is simply a matter of XPath
> expressions, but my brain keeps trying differing versions of recursion
> with
> no luck.
>
>
> Source xml:
> <?xml version="1.0" encoding="UTF-8" ?>
> <root>
> <!--start A series of 1 -->
> <element number="A1">
> <flag/>
> </element>
> <!-- start B series of 4 -->
> <element number="B1">
> <flag/>
> </element>
> <element number="B2"/>
> <element number="B3"/>
> <element number="B4"/>
> <!-- start C series of 2 -->
> <element number="C1">
> <flag/>
> </element>
> <element number="C2"/>
> <!-- start D series of 3 -->
> <element number="D1">
> <flag/>
> </element>
> <element number="D2" />
> <element number="D3" />
> </root>
>
>
> Stylesheet so far:
> <?xml version="1.0" encoding="UTF-8"?>
> <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
> version="1.0">
> <xsl:output method="text" media-type="text/plain"/>
> <xsl:strip-space elements="*" />
>
> <xsl:template match="/root/element">
> <xsl:choose>
> <xsl:when test="(following-sibling::element[1][child::flag]) or
> (count(following-sibling::element) = 0)">
> <xsl:call-template name="countFlags">
> <xsl:with-param name="nodeList"
> select="preceding-sibling::element"
> />
> </xsl:call-template>
> </xsl:when>
> <xsl:otherwise />
> </xsl:choose>
> </xsl:template>
>
> <xsl:template name="countFlags">
> <xsl:param name="nodeList"/>
> <!-- do something here to count the preceding-sibling::element nodes up to
> the first <element> whose following-sibling::element does not have a
> <flag>
> child. -->
> </xsl:template>
> </xsl:stylesheet>
>
>
> Thanks in advance,
>
>
> Chris
>
>
>
> XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
>
>

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