recurrency

[David Carlisle]

Your posted input wan't well formed, if I make it so:


<x>
<testXML>
   <system>
       <node-name>
           <name>name1</name>
           <addInfo>t11</addInfo>
            <node-name>
                   <name>name2</name>
                   <addInfo>t22</addInfo>
                   <node-name>
                            <addInfo>t33</addInfo>
                            <name>name3</name>
		   </node-name>
	    </node-name>
       </node-name>
   </system>
</testXML>



<somewhere-it-is-used>
   <what-the-name--of-var-is>
        <ref>name1</ref>
        <ref>name3 'sdsdsd'</ref>
   </what-the-name--of-var-is>



   <what-the-name--of-var-is>
        <ref>name1</ref>
   </what-the-name--of-var-is>

</somewhere-it-is-used>

</x>



Then I think this returns what you want for the two references.




declare function local:ref ($node as node(), $s as xs:string*) {
if (empty($s)) 
then
$node/addInfo
else
local:ref($node/descendant::node-name[name=$s[1]][1],$s[position()!=1])
};

for $v in /x/somewhere-it-is-used/what-the-name--of-var-is
let $s := $v/ref/replace(.,' .*$','')
return
<var ref="{string-join($s,'/')}">
{local:ref(/,$s)}
</var>



as demonstrated by saxon if the above are saved in ref.xml and ref.xq
respectively.



$ saxon9q -s:ref.xml ref.xq
<?xml version="1.0" encoding="UTF-8"?>
<var ref="name1/name3">
   <addInfo>t33</addInfo>
</var>
<var ref="name1">
   <addInfo>t11</addInfo>
</var>

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