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Paul Elliott

Subject: difficult problem for an xslt newbie
Author: Paul Elliott
Date: 15 Sep 2006 04:58 PM

I am trying to write an xslt that will take a structure similar to this:

<root>
<element-a />
<element-b />
<element-a />
<element-a />
<element-b />
<element-c />
<element-b />
</root>

There can be any number of element-a's, each followed by any number of element-b's, each followed by any number of element-c's. The c's always follow the b's and the b's always follow the a's.
The format I am trying to transform it into something looks like this:
<root>
<element-a>
<element-b />
</element-a>
<element-a />
<element-a>
<element-b>
<element-c />
</element-b>
<element-b />
<element-a />
</root>

In the new format, the c's are children of the b's and the b's are children of the a's. It is in the same order, just now the parent-child relationships are enforced.
What is the easiest way to accomplish this. I am having trouble tackling this functionally. Any help would be greatly appreciated. Thanks in advance!

Tony Lavinio

Subject: difficult problem for an xslt newbie
Author: Tony Lavinio
Date: 21 Sep 2006 10:34 AM

This is the classic XSLT grouping problem.
Type "XSLT grouping" into Google, or go
direct to a very clear explanation (with examples!)
at http://www.jenitennison.com/xslt/grouping/

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