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Parallel data traversal

From: Vojta <dr.fie@------.-->
To: NULL
Date: 9/10/2007 12:49:00 AM


Hi,

I have some xml data looking like this
<root>
  <items1>
    <i1>..</i1>
    <i1>..</i1>
  </items1>
  <items2>
    <i2>..</i2>
    <i2>..</i2>
  </items2>
</root>

If my context node is the k-th node in items1 is to possible to create
XPath that finds a k-th node in items2? Something like "../../
items2[position() = position(.)]" - which does not work because "." is
bound to some "i2" node inside the square brackets.

Some motivation: we use a "repeater" component that traverses child
nodes of one node. The current node in the repeater is the context
node. The user then uses xpaths relative to the current node to get
the data. And I need some hack to be able to reference nodes at the
same position but inside a  different node.

Obviously the most natural solution is to do some data preprocessing
to "zip" items1 and items2 together or modify our repeater to be able
to have multiple context nodes. But isn't there any pure xpath way to
do this?

Thanks

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Parallel data traversal