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Hi all, I have been at this for about six hours. As written, the style sheet does not produce the element marked "Missing element" in Listing 3 (the output ) and as "Not output" in Listing one (source document). The problem is marked "My problem" in the Listing 2 (style sheet). I Know that my problem is that I am telling the style sheet to give me only the first <Data> element. What I don't know is how to tell it to give me all of the <Data> elements that meet the <xsl:if> test, but none of the <Data> element that do not meet that test. Or have I just set everything up wrong to start with? Any help would be appreciated Mark Listing 1: Input
<?xml version="1.0" encoding="UTF-8"?>
<List >
<Item plate="1" position="1">
<Feature>
<Location>
<Element>rays</Element>
</Location>
<Data>dot below the rays under TA</Data>
</Feature>
<Feature>
<Location>
<Element>rays</Element>
<SubDiv>main</SubDiv>
</Location>
<Data>main ray swollen at both ends</Data>
</Feature>
</Item>
<Item plate="2" position="1">
<Feature>
<Location>
<Element>rays</Element>
</Location>
<Data>dot below the rays under S</Data> <!-- Not output -->
</Feature>
</Item>
<Item plate="1" position="2">
<Feature>
<Location>
<Element>rays</Element>
<SubDiv>main</SubDiv>
</Location>
<Data>main ray thicker in the middle</Data>
</Feature>
</Item>
</List>Listing 2: Style Sheet <?xml version="1.0" encoding="UTF-8"?> <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:xs="http://www.w3.org/2001/XMLSchema" exclude-result-prefixes="xs" version="2.0"> <xsl:template match="List"> <List> <xsl:for-each-group select="Item/Feature" group-by="Location/Element"> <xsl:sort select="current-grouping-key()"/> <Item> <Feature> <xsl:copy-of select="Location/Element" copy-namespaces="no"/> <xsl:if test="not(Location/Element/following-sibling::SubDiv)"> <Description> <xsl:copy-of select="Data" copy-namespaces="no"/><!-- My Problem --> </Description> </xsl:if> <xsl:for-each-group select="current-group()" group-by="Location/SubDiv"> <xsl:sort select="current-grouping-key()"/> <Level1> <xsl:copy-of select="Location/SubDiv" copy-namespaces="no"/> <Description> <xsl:copy-of select="current-group()/Data" copy-namespaces="no"/> </Description> </Level1> </xsl:for-each-group> </Feature> </Item> </xsl:for-each-group> </List> </xsl:template> </xsl:stylesheet> Listing 3: Output
<?xml version="1.0" encoding="UTF-8"?>
<List>
<Item>
<Feature>
<Element>rays</Element>
<Description>
<Data>dot below the rays under TA</Data>
<!-- Missing Element: <Data>dot below the rays under S</Data> goes here -->
</Description>
<Level1>
<SubDiv>main</SubDiv>
<Description>
<Data>main ray swollen at both ends</Data>
<Data>main ray thicker in the middle</Data>
</Description>
</Level1>
</Feature>
</Item>
</List>
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