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Ken TamSubject: transform from flat to hierarchical
Author: Ken Tam
Date: 26 Nov 2006 11:47 PM
Hi all,

I need to transform flat and somewhat unstructured XML to a more structual format. The following is a sample:

<logs>
<log>a</log>
<log>sub b</log>
<log>c</log>
<log>sub d</log>
<log>e</log>
<log>f</log>
<log>end of d</log>
<log>g</log>
<log>end of b</log>
<log>h</log>
<log>i</log>
<logs>

into a more structured content with nesting:

<logs>
<log name="a">
<log name="b">
<log name="c">
<log name="d">
<log name="e"/>
<log name="f"/>
</log>
</log>
<log name="g"/>
</log>
</log>
<log name="h"/>
<log name="i"/>
</logs>

Is this doable by using XSLT/XPATH?. If yes, please share some sample code.

Thanks,
kkt
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Tony LavinioSubject: transform from flat to hierarchical
Author: Tony Lavinio
Date: 27 Nov 2006 12:46 AM
Try typing "flat to hierarchical using xslt" into Google.
In the first 20 entries, you'll find several pointers.
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Ken TamSubject: transform from flat to hierarchical
Author: Ken Tam
Date: 27 Nov 2006 01:13 AM
I've done the same search but all the examples dealt with nestings that are determines by a single node (i.e. a row with an attribute "level") instead of begin-end node pair which is where I am stuck as I don't know how to group by two separate nodes.
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Ken TamSubject: transform from flat to hierarchical
Author: Ken Tam
Date: 27 Nov 2006 01:19 AM
Added spaces to show the nesting in the output.

From:

<logs>
<log>a</log>
<log>sub b</log>
<log>c</log>
<log>sub d</log>
<log>e</log>
<log>f</log>
<log>end of d</log>
<log>g</log>
<log>end of b</log>
<log>h</log>
<log>i</log>
<logs>

into a more structured content with nesting:

<logs>
<log name="a">
<log name="b">
<log name="c">
<log name="d">
<log name="e"/>
<log name="f"/>
</log>
</log>
<log name="g"/>
</log>
</log>
<log name="h"/>
<log name="i"/>
</logs>
Posttop
Tony LavinioSubject: transform from flat to hierarchical
Author: Tony Lavinio
Date: 27 Nov 2006 09:00 AM
This is a forum for supporting customers of Stylus Studio; from your
email I can't tell if you are one or not. General XSLT questions
should go to the xsl-list run by Mulberry Tech.

However...

You might find some useful information over at
http://www.jenitennison.com/xslt/index.xml
specifically under "Grouping" and "Constructing Hierarchies".

 
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