RE: Flattening a XML tree

Farooq wrote:
> I have an input tree that looks like this
> 
> <?xml version="1.0"?>
> <Tree>
>  <TreeNode id="1" weight="5">
>   <TreeNode id="2" weight="3">
>    <TreeNode id="6" weight="2"/>
>    <TreeNode id="7" weight="2"/>
>    <TreeNode id="8" weight="2"/>
>   </TreeNode>
>   <TreeNode id="3" weight="4">
>    <TreeNode id="9" weight="3">
>     <TreeNode id="11" weight="2"/>
>     <TreeNode id="12" weight="2"/>
>    </TreeNode>
>    <TreeNode id="10" weight="2"/>
>   </TreeNode>
>   <TreeNode id="4" weight="2"/>
>   <TreeNode id="5" weight="2"/>
>  </TreeNode>
> </Tree>
> 
> I need to flatten the tree to a structure that looks like this. I've
> looked at the archives, but haven't found an answer.
> 
> <?xml version="1.0"?>
> <Tree>
>   <TreeNode id="1" weight="5">
>     <TreeNode id="2" weight="3"/>
>     <TreeNode id="3" weight="4"/>
>     <TreeNode id="4" weight="2"/>
>     <TreeNode id="5" weight="2"/>
>     <TreeNode id="6" weight="2"/>
>     <TreeNode id="7" weight="2"/>
>     <TreeNode id="8" weight="2"/>
>     <TreeNode id="11" weight="2"/>
>     <TreeNode id="12" weight="2"/>
>     <TreeNode id="9" weight="3"/>
>     <TreeNode id="10" weight="2"/>
>   </TreeNode>
> </Tree>  

Why would you expect to find an answer in the archives? It looks like any
other XSLT problem to me. And the way it usually is with problems, you need
to do some thinking  to solve them.

  <xsl:template match="Tree">
    <xsl:copy>
      <xsl:apply-templates />
    </xsl:copy>
  </xsl:template>
  <xsl:template match="Tree/TreeNode">
    <xsl:copy>
      <xsl:copy-of select="@*" />
      <xsl:apply-templates />
    </xsl:copy>
  </xsl:template>
  <xsl:template match="TreeNode">
    <xsl:copy>
      <xsl:copy-of select="@*" />
    </xsl:copy>
    <xsl:apply-templates />
  </xsl:template>

Regards,
Marco

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