Re: [xsl] selecting nodes based on sibling values

Subject: Re: [xsl] selecting nodes based on sibling values
From: Michael Kay <mike@xxxxxxxxxxxx>
Date: Tue, 23 Nov 2010 15:24:36 +0000
<xsl:variable name="gpsizes">
<xsl:for-each-group select="row" group-starting-with="row[level='40']">
<xsl:sequence select="count(current-group()) - 1"/>
</xsl:for-each-group>
</xsl:variable>
<xsl:value-of select="max($gpsizes)"/>

Michael Kay
Saxonica

On 23/11/2010 14:45, Fabien Tillier wrote:
Hi List.
Let's say I have an XML like below...

<data>
	<row>
		<level>40</level>
		<keycode>1254.45.12</keycode>
	</row>
	<row>
		<level>50</level>
		<keycode>1254.45.12.7</keycode>
	</row>
	<row>
		<level>50</level>
		<keycode>1254.45.12.8</keycode>
	</row>
	<row>
		<level>50</level>
		<keycode>1254.45.12.9</keycode>
	</row>

	<row>
		<level>40</level>
		<keycode>99.25.6</keycode>
	</row>
	<row>
		<level>50</level>
		<keycode>99.25.6.45</keycode>
	</row>
	<row>
		<level>50</level>
		<keycode>99.25.6.46</keycode>
	</row>
</data>

What could be the XPath expression to get the maximum number of nodes of
level=50 in data those keycode starts like the level=40 line ?
Here the answer would be 3 as the maximum number of level = 50 nodes for
a given level = 40 is 3
I have tried several things, but I am stuck....
(I am using XSLT 2.0 on Saxon)


Thanks for lending me some neurons... Best regards, Fabien

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