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[xsl] mixed content nodes question

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Hi--

I'm really new to XSL and I'm having trouble figuring out how to do what seem to be fairly basic things. For example, say I have the following file:

<root>
 <child>
  <leaf>Leaf Value1</leaf>
  <leaf>Leaf Value2</leaf>
 </child>
 <child>
  <leaf>Leaf Value <dictionary lookup="3"/> 3</leaf>
 </child>
</root>

and I wanted to transform it very simply to:

<root>
 <child>
  <leaf>Leaf Value1</leaf>
  <leaf>Leaf Value2</leaf>
 </child>
 <child>
  <leaf>Leaf Value Foo 3</leaf>
 </child>
</root>

I'd imagine I'd have some part of my xsl sheet include a long 'when' block and switch on the lookup attribute's values so i'd have:
<xsl:when test="3">Foo</xsl:when>
<xsl:when test="4">Bar</xsl:when>

But I can't figure out how to do the actual transforming of only those <dictionary> tags in place, leaving the rest of the file unchanged. I've tried apply-templates in the a template matching "/", then having a template matching "*" do a test to see if the current node is <dictionary>, if so, transform and write out, otherwise, write out as it is, but I can't get it to work right.

If it's vastly easier to process if instead of having:
<dictionary lookup="3"/> -> Foo
I have:
<dictionary>3</dictionary> -> Foo

I might be able to make that change to the xml format, but I'm still confused about how to deal with mixed nodes. I feel like people must do this all the time, if they have bits of HTML embedded in larger XML trees they must have markup tags like <b>, <a> that make the nodes mixed content, but I can't find a good example of it.

Also, I keep coming across vague references to the fact that MSXSL.exe v3 is perhaps not the ideal way of transforming my xml docs. Given that I'm on windows, is there a better tool to use?

Any help or pointers to help would be greatly appreciated,
jeb.

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