[xml] XPath evaluation

["CAPRON Patrick" <capronpa e-i com>]

Hi,

 

I don't understand how libxml2 is evaluating some expressions.

 

I have an XML who looks like :

<?xml version="1.0"?>

<REQUEST>

    <HEADER/>

    <CODEAPPLI>TARGET2</CODEAPPLI>

    <BICCOR>CMCIFRPP</BICCOR>

    <NMSRVLOG>NMSRVLOG</NMSRVLOG>

    <NMRQTLOG>NMRQTLOG</NMRQTLOG>

    <REQUESTREF>REQUESTREF</REQUESTREF>

    <RQTSTATUS>RQTSTATUS</RQTSTATUS>

    <SwInt:RequestPayload>

        <AppHdr xmlns="urn:ssp.ApplicationHeader$ahV10">

            <From>

                <Type>NAME</Type>

                <Id>PM</Id>

            </From>

            <To>

                <Type>NAME</Type>

                <Id>PM</Id>

            </To>

            <MsgRef>ABCDEF</MsgRef>

            <CrDate>2006-04-19T12:00:00</CrDate>

        </AppHdr>

        <Document xmlns="urn:ssp.pm.GetLimit$camt.009.001.02">

            <camt.009.001.02>

                <MsgId>

                    <Id>REFERENCE12345</Id>

                </MsgId>

                <LmtQryDef>

                    <LmtCrit>

                        <NewCrit>

                            <SchCrit>

                                <AcctOwnr>CMCIFRPAXXX</AcctOwnr>

                            </SchCrit>

                        </NewCrit>

                    </LmtCrit>

                </LmtQryDef>

            </camt.009.001.02>

        </Document>

    </SwInt:RequestPayload>

</REQUEST>

 

I use the xmlXPathEvalExpression function.

If I use the _expression_ : /REQUEST/RequestPayload/Document the function returns 0 node.

If I use the _expression_ : /REQUEST/RequestPayload/*[name()='Document'] it returns the node I'm looking for.

 

Could anybody explain me why there is a difference between this two expressions ?

I believed that they were the same...

Is it because of the xmlns ?

 

Thanks,

Patrick CAPRON