MarcoT77@g... wrote:
> Hi Teacher.
> 
> I'm trying to get with Xpath the Product nodes in the following XML:
> <?xml version="1.0" encoding="utf-8"?>
> <PLMXML xmlns="http://www.plmxml.org/Schemas/PLMXMLSchema"
>  schemaVersion="5.1" date="2005-05-03" time="16:41:33" author="TcEng -
> infodba@bridge(389284449)">
> <Header id="id1" traverseRootRefs="#id2 #id11"
> transferContext="exp_folder"></Header>
> <Product id="id10" name="Ace" accessRefs="#id3" subType="Drawing"
> productId="000002">
> <ApplicationRef version="QRJJ3Vh1xNEIWA" application="TcEng"
> label="QRJJ3Vh1xNEIWA"></ApplicationRef>
> <UserData id="id33">
> <UserValue type="reference" value="" title="owning_user"
> dataRef="#id11"></UserValue>
> <UserValue value="0-01-00T00:00:00" title="date_released"></UserValue>
> <UserValue value="2005-05-03T14:00:32"
> title="last_mod_date"></UserValue>
> <UserValue type="reference" value="" title="last_mod_user"
> dataRef="#id11"></UserValue>
> <UserValue type="reference" value="" title="owning_group"
> dataRef="#id27"></UserValue>
> <UserValue value="2005-05-03T10:46:39"
> title="creation_date"></UserValue></UserData></Product> (Continue...)
> 
> I've used the /PLMXML/Product query but I can't get anything.

with XPath, unprefixed elements refers to elements that are not bound to 
a namespace URI ; in XML, unprefixed elements may be bound to a 
namespace URI ; this is the case in the document above, and not the case 
in the document below
thus, /PLMXML gets the PLMXML element with no namespace URI, that 
doesn't appear anywhere ; to get the PLMXML element bound to this 
namespace URI "http://www.plmxml.org/Schemas/PLMXMLSchema", you must 
declare a mapping between a prefix and the namespace URI :
plm -> "http://www.plmxml.org/Schemas/PLMXMLSchema"
and then use it in your XPath expression :
/plm:PLMXML/plm:Product
how to declare the mapping vary according to the XPath engine you use, 
but people usually use it with XSLT ; with XSLT, namespaces declarations 
are used by the XPath engine

> 
> I've also tried  this simple xml:
> <?xml version='1.0'?>
> <Books>
> <Book>
>   <Title>Beginning XML</Title>
>   <Publisher>Wrox</Publisher>
> </Book>
> <Book>
>   <Title>XML Step by Step</Title>
>   <Publisher>MSPress</Publisher>
> </Book>
> <Book>
>   <Title>Professional XML</Title>
>   <Publisher>Wrox</Publisher>
> </Book>
> <Book>
>   <Title>Developing XML solutions</Title>
>   <Publisher>MSPress</Publisher>
> </Book>
> </Books>
> 
> And on this Xml the rule /Books/Book works fine.
> 
> Why does not the first rule work?
> Am I missing something? 
> 
> Thanks in advance.
> Marco.
> 


-- 
Cordialement,

            ///
           (. .)
  -----ooO--(_)--Ooo-----
|   Philippe Poulard    |
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