Re: [xml] Temporarily Holding Nodes

[Daniel Veillard <veillard redhat com>]

On Mon, Jun 30, 2008 at 11:42:38AM +0000, dhk wrote:
> What is the best way to temporarily hold nodes off to the side of a 
> program for later use?
>
> I'm parsing an xml document to display only some of the data from the 
> xml file so the user can edit it.  After that I want to combine the data 
> displayed with data that wasn't displayed.  The only think is I'm not 
> sure what to do with the nodes of data that weren't displayed while the 
> program is being used.

  I'm not sure I understood, it seems to me the approach can't work
for the simple reason that XML document content is context dependant.
Namespaces in scope, entities definition or ID/IDREF are typical examples 
of data from somewhere else in the tree which can affect a subtree.

> Should the unused data be held in a separate document, a nodeset, or 
> should it be a linked list of nodes?  The document fragments sound like 
> it might be something I want, but I don't know what there intended use 
> is.  Anyone know?  Whatever it is it should be something that can be 
> easily merged.

  I really think everything should be held together, or use something
like XInclude to properly define the subsetting in a standard way,
but you just can't separate data out of the tree and hope to not
loose some informations, and plug them back later.

Daniel

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