Re: C++ version of regexprep.cc

[Bill Denney]

On Thu, 4 May 2006, Andy Adler wrote:

> On Thu, 4 May 2006, Bill Denney wrote:
>
> > I personally think that elements should have a namespace associated
> > with it only if it's different than the parent.  Then it is simple to
> > climb the tree to see your particular namespace.
>
> That is a good idea. However, I'm not sure if this matches
> the XML spec. XML namespaces provide a default namespace
> for the document for all unspecified tags, not for those
> that differ from the parent (correct me if I'm wrong).

I don't think that's the case.  The general format of a document is that 
you can change the default namespace or use a specific namespace for a 
specific element.

For example:

<doc xmlns="http://my.namespace/uri"; xmlns:his="http://his.namespace/uri";>
  <mine xmlns="http://other.namespace/uri";>
    <data/>
  </mine>
  <yours>
    <data/>
  </yours>
  <his:data/>
</doc>

The <data/> that is within mine falls into the namespace 
"http://other.namespace/uri"; because the default namespace was changed for 
all sub-elements under <mine>.  The <data/> under yours falls into the 
namespace "http://my.namespace/uri";, and the his: in <his:data> indicates 
that that data element falls into the namespace 
"http://his.namespace/uri";.  So the default namespace can be changed 
for the tree under any leaf.

Bill

--
"No, no, you're not thinking, you're just being logical." -- Niels Bohr