[xsl] How to form correct structure

["David O Baldwin" <david.baldwin@xxxxxxxxxxxx>]

I have a question about how to form the correct structure of nodes in my
result set.

I have an xml file which represents a set of Menu items.
I am attempting to transform each Menu node into an HTML DIV.

My problem is that for each branch of the menu I need to contain the rest of
the entire menu in a further DIV.

A simplified version of the XML is as follows:
(The Description of each Menu reflects its level in the node set)

<?xml version="1.0"?>
<Menu>
	<Menu Description="menuOne">
		<Menu Description="menuOneOne">
		</Menu>
		<Menu Description="menuOneTwo">
			<Menu Description="menuOneTwoOne">
			</Menu>
		</Menu>
		<Menu Description="menuOneThree">
		</Menu>
	</Menu>
	<Menu Description="menuTwo">
		<Menu Description="menuTwoOne">
		</Menu>
	</Menu>
</Menu>



A simplified version of the XSL is as follows:

<xsl:template match="/">
	<xsl:apply-templates select="Menu"/>
</xsl:template>

<xsl:template match="Menu">
	<xsl:variable name="MenuID">menu<xsl:number level="multiple" count="Menu"
format="1_1"/></xsl:variable>
	<DIV>
		<xsl:attribute name="ID">
			<xsl:value-of select="$MenuID"/>
		</xsl:attribute>
		<xsl:value-of select="@Description"/>
	</DIV>
	<xsl:if test="Menu">
		<xsl:apply-templates select="Menu"/>
		<DIV>
			<xsl:attribute name="ID">Block_<xsl:value-of
select="$MenuID"/></xsl:attribute>
		</DIV>
	</xsl:if>
</xsl:template>

The resulting output is as follows

<DIV ID="menu"></DIV>
<DIV ID="menu_1">menuOne</DIV>
<DIV ID="menu_1_1">menuOneOne</DIV>
<DIV ID="menu_1_2">menuOneTwo</DIV>
<DIV ID="menu_1_2_1">menuOneTwoOne</DIV>
<DIV ID="Block_menu_1_2">
</DIV>
<DIV ID="menu_1_3">menuOneThree</DIV>
<DIV ID="Block_menu_1">
</DIV>
<DIV ID="menu_2">menuTwo</DIV>
<DIV ID="menu_2_1">menuTwoOne</DIV>
<DIV ID="Block_menu_2">
</DIV>
<DIV ID="Block_menu">
</DIV>

However, the desired output is to have the 'Block' DIVs surrounding the rest
of the menu as follows, with the order of the menu DIVs remaining the same:

<DIV ID="menu"></DIV>
<DIV ID="menu_1">menuOne</DIV>
<DIV ID="menu_1_1">menuOneOne</DIV>
<DIV ID="menu_1_2">menuOneTwo</DIV>
<DIV ID="menu_1_2_1">menuOneTwoOne</DIV>
<DIV ID="Block_menu_1_2">
	<DIV ID="menu_1_3">menuOneThree</DIV>
	<DIV ID="Block_menu_1">
		<DIV ID="menu_2">menuTwo</DIV>
		<DIV ID="menu_2_1">menuTwoOne</DIV>
		<DIV ID="Block_menu_2">
			<DIV ID="Block_menu">
			</DIV>
		</DIV>
	</DIV>
</DIV>

I think that what I need to do is to change the XSL to be something like

	<xsl:if test="Menu">
		<xsl:apply-templates select={expression to select only direct descendents
of current node} />
		<DIV>
			<xsl:attribute name="ID">Block_<xsl:value-of
select="$MenuID"/></xsl:attribute>
			<xsl:apply-templates select={expression to select only following siblings
of current node} />
		</DIV>
	</xsl:if>


but I have not managed to get anywhere near what I am after, so maybe I am
barking up the wrong tree.
It seems as though what I am trying to do is create a nested structure based
on the structure of the original XML, but using different nodes.

Does anyone have any ideas as to how to approach this problem?

I can probably write something in ASP to convert the XML for me, but I would
rather find out how it could be done in XSL.

Thanks for any pointers/ideas.

David Baldwin






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