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RE: [xsl] XPath and recursion


Subject: RE: [xsl] XPath and recursion
From: "Michael Kay" <mhk@xxxxxxxxx>
Date: Thu, 23 Oct 2003 08:39:13 +0100

This looks rather simple, or have I missed something?

<xsl:template match="node/node">
  <xsl:variable name="level" select="count(ancestor::node)"/>
  <xsl:value-of select="concat(
     'aux', $level+1, ' = insFld(aux', $level, 
     ', gfld(, $quot, @value1, $quot, '))&#xa;'"/>
  <xsl:apply-templates/>
</xsl:template>

<xsl:template match="document/node">
  <xsl:variable name="level" select="count(ancestor::node)"/>
  <xsl:value-of select="concat(
     'aux', $level+1, ' = insFld(foldersTree',  
     ', gfld(, $quot, @value1, $quot, '))&#xa;'"/>
  <xsl:apply-templates/>
</xsl:template>

<xsl:variable name="quot">"</xsl:variable>
<xsl:output method="text"/>

Michael Kay    

> -----Original Message-----
> From: owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx 
> [mailto:owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx] On Behalf Of Jonny Pony
> Sent: 23 October 2003 07:32
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject: [xsl] XPath and recursion
> 
> 
> Hi,
> 
> I'm pretty new to XPath and I want to achive the following.
> 
> I've got an xml-file, something like this:
> 
> <?xml version="1.0" encoding="UTF-8"?>
> <document>
> 	<node value1="DB Objects">
> 		<node value1="Andreas">
> 			<node value1="Peter">
> 				<node value1="Kempten"/>
> 				<node value1="Ulperting"/>
> 			</node>
> 			<node value1="Muahhh"/>
> 			<node value1="Christoph">
> 				<node value1="Ulperting"/>
> 				<node value1="FrankyBoy">
> 					<node value1="Munich"/>
> 				</node>
> 			</node>
> 		</node>
> 		<node value1="Christoph">
> 			<node value1="Munich"/>
> 			<node value1="FrankyBoy">
> 				<node value1="Kempten"/>
> 			</node>
> 		</node>
> 		<node value1="Frank"/>
> 	</node>
> 	<node value1="Tables">
> 		<node value1="Andreas">
> 			<node value1="Peter">
> 				<node value1="Munich"/>
> 				<node value1="Ulperting"/>
> 			</node>
> 		</node>
> 		...
> 	</node>
> </document>
> 
> And I want to get an output like this after the xsl transformation:
> 
> aux1 = insFld(foldersTree, gFld("DB-Objects"))
>     aux2 = insFld(aux1, gFld("Andreas",))
> 		aux3 = insFld(aux2, gFld("Peter"))
> 			aux4 = insFld(aux3, gFld("Kempten"))
> 			aux4 = insFld(aux3, gFld("Ulperting"))
>   		aux3 = insFld(aux2, gFld("Muahhh"))
> 		aux3 = insFld(aux2, gFld("Christoph"))
> 			aux4 = insFld(aux3, gFld("FrankyBoy"))
> 				aux5 = insFld(aux4, gFld("Munich"))
> 	 			aux5 = insFld(aux4, gFld("FrankyBoy"))
> 					aux6 = insFld(aux5, 
> gFld("Kempten"))
> 					aux6 = insFld(aux5, 
> gFld("Kempten"))
> 	aux2 = insFld(aux1, gFld("Christoph"))
> 	aux2 = insFld(aux1, gFld("Frank"))
> 			aux3 = insFld(aux2, gFld("Peter"))
> 			aux4 = insFld(aux3, gFld("Ulperting"))
>   		aux3 = insFld(aux2, gFld("Muahhh"))
> 		aux3 = insFld(aux2, gFld("Christoph"))
> 			aux4 = insFld(aux3, gFld("Ulperting"))
> 			aux4 = insFld(aux3, gFld("FrankyBoy"))
> 				aux5 = insFld(aux4, gFld("Munich"))
> aux1 = insFld(foldersTree, gFld("Tables"))
>     aux2 = insFld(aux1, gFld("Andreas",))
> 		aux3 = insFld(aux2, gFld("Peter"))
> 			aux4 = insFld(aux3, gFld("Kempten"))
> 		aux3 = insFld(aux2, gFld("Christoph"))
> 			aux4 = insFld(aux3, gFld("Munich"))
> 			aux4 = insFld(aux3, gFld("Ulperting"))
> 
> The idea behind that:
> if /document has at least a child, write:
>    aux1 = insFld(foldersTreeview, gFld( "<xsl:value-of 
> select="@value1"/>"));
> if the child got at least another child,write:
>    aux2 = insFld(aux1, gFld("<xsl:value-of 
> select="@value1"/>"); if the child of the child got at least 
> another child,write:
>    aux3 = insFld(aux2, gFld("<xsl:value-of 
> select="@value1"/>"); and so on....
> 
> I tried to solve this problem for a long time now, but 
> falways failed. Also 
> the numbering of "aux", the deeper i get into the node-tree, 
> is impossibly 
> for me. Have no clue how I would do that.
> 
> 
> Thanks
> Jonny
> 
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