Re: [xml] xmllint and namespaces

[Stefan Kost <kost imn htwk-leipzig de>]

Hi Daniel,
> > Thanks for your help, but I am not over with the issue. I prefered not to 
> > pollute my files and so I got rid of the namespace prefix (as I will not mix my 
> > xml-data with other). So
> >
> > <giml:giml xmlns:giml="http://gitk.sourceforge.net/";>
> >    <giml:context/>
> > </giml:giml>
> >
> > has been changed to
> >
> > <giml xmlns="http://gitk.sourceforge.net/";>
> >    <context/>
> > </giml>
> >
> > I keep the default namespace. No all of my xpath queries are broken.
>
>
>   Read the XPath spec. the "giml" XPath expression will only select
> nodes of name "giml" but without namespace. You need to keep the namespace
> in the XPath query to match those node.
>   Sorry I can't debug the code. I assume the problem comes from what
> I just said.

I don't get it. I read the XPath spec over and over again, but there is nothing 
that convinces me that I am doing something wrong.

I found the thread http://mail.gnome.org/archives/xml/2001-December/msg00072.html

which seems to reflect my problem, but I don't understand the problem behind. 
Unfortunately there is no reply of you in this thread.

Further I found the thread
http://mail.gnome.org/archives/xml/2002-January/msg00177.html

and I constructed a similiar example :
<?xml version="1.0" encoding="UTF-8" ?>
<giml>
  <context type="dialog">
    <controlgroup>
      <control id="UserName" type="characterinput_alphabetic"/>
    </controlgroup>
  </context>
</giml>
and invoked
# testXPath -i share/gitk/gitkHelloUser_main.xml "//control[ id="UserName"]"
Object is a Node Set :
Set contains 0 nodes:

on the other hand see this
# testXPath -i share/gitk/gitkHelloUser_main.xml "//control"
Object is a Node Set :
Set contains 1 nodes:
1  ELEMENT control
    ATTRIBUTE id
      TEXT
        content=UserName
    ATTRIBUTE type
      TEXT
        content=characterinput_alphabetic

am I totaly lost ?

Finaly about "xmlXPathNewContext()", when I had been using a namespace with a 
prefix I was using
        ctxt->namespaces=g_new(xmlNsPtr,1);
        ctxt->namespaces[0]=mynamespace;
        ctxt->nsNr=1;
before using the context. Now that namespace has a "ns->prefix==NULL", should I 
still attach it or better use
        ctxt->namespaces=NULL;
        ctxt->nsNr=0;
It seems to make no difference. I don't use "xmlXPathRegisterNs()" as there is 
no version of it accepting a xmlNsPtr.

Stefan (currently doing 'make check' ...)
--
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