Re: [xml] Exchanging same XML fragment in multiple XML documents

[Daniel Veillard <veillard redhat com>]

On Wed, Nov 06, 2002 at 02:39:10PM +0100, Holger Rauch wrote:
> I indeed *did* look it up), but was not sure since I had
> the impression that accessing nodesetval and nodeTab directly is not
> clean; I thought there was some function to access it. Well, obviously I
> was wrong... Thanks a lot for clarifying this.

  the structures are public, except the ones in "Internal" or headers not
installed.

> >   copy it in each document using xmlDocCopyNode()
>
> Using this function assumes that I already have an
> xmlNodePtr. However, this is not the case when having a textual
> representation of an XML fragment. My question thus is: How do I convert a
> textual representation of an XML fragment to a node list (xmlNodePtr)?

  Make it a well-formed XML document and parse it.
Uusually enclosing in beginning and end tags is sufficient.
There is a number of problems related to encoding, entities and namespace 
references, but those problems are present too in the fragment parsing
interface to some extend. At least getting back to parsing a full document
expose the limitations associated to your approach (you are mixing layers
of the textual representation and the internal one, and you loose tons
of contextual informations needed to make sense of the first one in the
second one).

> >   one operates on a single node subtree, and the other does the same on the
> > full list 
>
> Ok, this wasn't clear to me since the documentation for these two
> functions only differs in one word: "tree" in one, and "list" in the

  Well, that's a fairly significant difference !!!

Daniel

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