Re: [xslt] get transform context from extension function ?

[Thomas Broyer <tbroyer ltgt net>]

Le 26/07/01 19:12:34, Tom Moog a écrit :
> I am writing an extension function which creates an
> external object (xmlXPathObjectType = XPATH_USERS).
> The actual data is pointed to by the void * user data
> in xmlXpathObject.  This user field is filled in by a
> call to xmlXPathReturnExternal.  

External objects are not tested at all, the API may change if (really)
needed.

> It appears that when an external object is deallocated
> the xmlXPathObject is simply deallocated and the user
> field is ignored.  So, I thought I'd keep a list of
> all the external objects which have been allocated in
> the transform context.  Then, when the transform context
> is deallocated I could run through this list of external
> objects and deallocate them. 

This is the Good Way, at least for the moment.

> My problem: when the extension function is called it 
> receives a pointer to the xmlXPathParserContext, and
> I'm not sure how to find the current transform context.

With xsltXPathGetTransformContext, from extensions.h

Tom.