RE: RE: [xml] (correct) way to link external subset to newly crea ted XML doc

["Henke, Markus" <Markus_Henke ordat com>]

> -----Original Message-----
> From: Daniel Veillard [mailto:veillard redhat com]
> Sent: Tuesday, January 08, 2002 12:39 PM
> To: Henke, Markus
> Cc: 'xml gnome org'
> Subject: Re: [xml] (correct) way to link external subset to newly
> created XML doc
>
>
> On Tue, Jan 08, 2002 at 12:18:29PM +0100, Henke, Markus wrote:
> > Hello,
> >
> > i'm wondering what's the correct way to create a reference to an
> > external subset in a document that i'm building from scratch.
> > It's not that i'm not able to do so, i'm actualy using
> >
> > xmlCreateIntSubset(myDocPtr, "rootNode", NULL, "myDTD.dtd");
> >
> > and it works like a charm.
> > When i'm saving the doc to disk (via xmlSaveFormatFileTo(...)),
> > it'll look like
> >
> > <?xml version="1.0"?>
> > <!DOCTYPE rootNode SYSTEM "myDTD.dtd">
> > <rootNode>...</rootNode>
> >
> > and that's exactly what i want.
> > But, AFAIK that's an *external* subset and i'm using a 
> function named
> > ...Create*Int*Subset (and that's the only function i've 
> found that do
> > so...).
> >
> > So, the question: Am i missing something (or have i 
> misunderstood the
> > meaning of *internal*/*external* subset)?
>
> One can add an internal subset and one external subset *reference* to
> an xmlDoc tree.

Yep, that's clear.

> The internal subset node is part of the document and represented as
> an xmlDtdPtr in the children list of the document. It will be 
> serialized
> at the same time as the document. The external subset is only 
> referenced
> from the xmlDocPtr and of course not serialized as such.

Sounds emphatic...8)
 
>   So yes this creates a reference to the external subset. But that
> reference is contained in the document and hence kept as part of the
> internal subset informations.

OK, that'll work for me ATM.
But what's to do when i actually use an internal (build from scratch)
*and* an (existing) external subset?
When i create the *reference* to the external subset
via xmlCreateIntSubset(), xmlDocPtr->intSubset points to the *external*
subset!? Who's than pointing to the internal subset, and where
xmlDocPtr->extSubset is pointing to?

>   To create an external subset content, one would need to create a new
> xmlDtd, fill it, possibly reference it from the xmlDocPtr, 
> and serialize it 
> (using xmlNodeDump() or xmlNodeDumpOutput() with a xmlDtd 
> node should work).

No need to create the external subset from scratch ATM...

> Daniel

Thanx, Markus



Mit freundlichen Gruessen - Kind regards
Markus Henke


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