Re: [xml] using xmlDocSetRootElement to move nodes between documents

[Daniel Veillard <veillard redhat com>]

On Wed, Jul 28, 2004 at 12:30:29PM +0200, Martijn Faassen wrote:
> > The efficiency is the problem. Recursing down the subtree generate
> > cost. It's possible to share dictionaries for multiple documents,
> > it's possible to reconciliate namespaces, but entities if not
> > substitued on parse are a serious problem, you may have to add them
> > on the internal subset of the target.
>
> This is putting a lot of the burden on the way the documents are
> created. Wouldn't it still be useful to have a function that did the
> right thing (even if it's relatively slow) when moving nodes from one
> document to another?

  yes that would make sense. but sharing dictionnaries in that kind of
applications is IMHO the right way.

> Anyway, I guess to implement this API I'll have to go about some other
> strategy.
>
> By the way, am I correct in assuming that xmlFreeDoc does not remove any 
> nodes that are in that document but not attached to it? I.e. free nodes 
> that have just been created but not yet attached, or nodes that are 
> unlinked, are not freed, right?

  xmlFreeDoc process recursively from the document node. So if a node is
not attached it won't be freed, except the document dictionnary will likely
be freed and hence you may have dandling pointers in out of scope node left.

Daniel

-- 
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veillard redhat com  | libxml GNOME XML XSLT toolkit  http://xmlsoft.org/
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