[XQZone General] node parameter

[Jason Hunter]

I'm not entirely sure I understand your question, but the question I'm 
going to answer is, "How do I do an xpath using strings that represent 
the element names to match?"  :)

Basically, you have two ways.  First, you can do something like this:

/*[name(.) = "foo"]/*[name(.) = "bar"]

But where possible it's generally more efficient to do an xdmp:eval 
where you construct a query as a string and evaluate it:

let $match := xdmp:eval(concat("/", $foo, "/", $bar))
...

-jh-

Farshad Farzan wrote:

> I have the following query, and I want to make it into a function that takes
> string parameters that will represent node address.
> 
> How do I add combine two node variables to make the right node for example ,
> 
> 
> 
> How to combine is xdmp:directory('/CDA/','infinity')  and
> //i:patientRole//i:patient/i:name
> Where both or one will be passed as strings ??
> 
> 
> declare namespace i='urn:hl7-org:v3' 
> <result> { 
> 
> for $dv in distinct-values( for $a in
> xdmp:directory('/CDA/','infinity')//i:patientRole//i:patient/i:name
> return concat(normalize-space( lower-case($a/i:given)),'
> ',normalize-space(lower-case($a/i:family)),'
> ',normalize-space(lower-case($a/i:suffix)) ))
> return <subresult> { $dv } </subresult> 
> } </result>
> 
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