Re: [xml] XPath question

[Rob Richards <rrichards ctindustries net>]

Erik F. Andersen wrote:
> Hello!
>
> I use LibXML version 2.6.17 on Windows and I have a problem with an XML document where I cannot get XPath to 
> return any nodes.
>
> The start of the XML looks like this:
>
> <?xml version="1.0" encoding="UTF-8"?>
> <DenDynamiskeBlanket xmlns="http://www.medcom.dk/DenDynamiskeBlanket/2006-01-30/";
>     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
>     xsi:schemaLocation="http://www.medcom.dk/DenDynamiskeBlanket/2006-01-30/ 
> file:/C:/Documents%20and%20Settings/Jacob/workspace/Den%20Dynamiske%20Blanket%20Fremviser/xml/xsds/ddb.xsd">
>     <Form>
>         <Identifier></Identifier>
>         <SentDateTime>2002-02-02T23:23:23</SentDateTime>
>         <TypeCode>LÆ255</TypeCode>
>         <VersionCode></VersionCode>
>         <StatisticalCode></StatisticalCode>
>         <PageStock>A4</PageStock>
>         <Graphics>
>
> My problem is that no matter what I do I cannot locate any nodes with XPath. I tried registering the 
> namespace using xmlXPathRegisterNs (the prefix is nil). Is there a problem with the XML above or am I doing 
> something wrong?  If I remove the xmlns attribute I have no problems. I think the XML is wrong but I don't 
> know what it is...
>   
Are you using the registered prefix in your query?
i.e. //nil:Form should return all the Form element nodes (assuming you 
registered "http://www.medcom.dk/DenDynamiskeBlanket/2006-01-30/"; with 
the prefix "nil")

Rob