Newbie to XSLT

["Pady Srinivasan" <pady at tek-tools dot com>]

 

I have a XML document as follows:

 

<instance name="pc">

    <value>John</value>

</instance>

<instance name="location">

    <value>Cube 47</value>

    <size>26 ft</size>

</instance>

<instance type="Association">

    <reference antecedent="pc">

        <value>John</value>

    </reference>

    <reference dependent="location">

        <value>Cube 47</value>

    </reference>

</instance>

 

 

So to find out what size John's cubicle  is,

 

1.  I need to go to the 3rd "instance" node, ( type is "Association" ) 

2.  look up the relationship between John's PC and where his location is ( Cube 47 )

3. Go back to 2nd "instance" node ( name is "location" ), and get the size.

 

Note that there could be multiple PC's and Location's in the same XML document.

 

From my basic knowledge of XSLT, I felt that doing this using a stylesheet would not be possible. So I was thinking of using the DOM tree and using XPath to do this.

 

I want to know from the XSL gurus, if this can be done using a XSL stylesheet. ( Basically, how do we store the "Cube 47" value in a variable, then use it to go back through the document and look for the size for "Cube 47" ??? )

 

 

Thanks

 

Pady