Re: ElemApplyTemplates implementation

Hi Dave,
what is an iterative stylesheet execution model? I can look into Xalan-C
code, but it is time consuming (so I won't look) and I need java xslt
processor. I have explored Xalan-J, Saxon and hmm I don't remember the
third. The main problem with implementation of incremental one based on any
XSLT processor is their internal document model. I can work with DOM style
document models only. Xalan has clear architecture, but optimization are
everywhere, so there is DTM and special cases. Also Xalan supports so many
format, I will only DOM. I've made design of Darwin based on Xalan but
special case like two mentioned, breaks my design. 
   
Tomas Studva

David Bertoni wrote:
> 
> You would have to trace through the alternate code path to figure this
> out, 
> but perhaps it's an optimization as well.  Someone who is more familiar 
> with Xalan-J might know better.
> 
> If you have any knowledge of C++, you might want to look at Xalan-C, which 
> implements an iterative stylesheet execution model.  With some
> limitations, 
> it could easily be adapted to an incremental model, since the execution 
> could be interrupted with each "child" that is instantiated.
> 
> One major limitation is that the evaluation of params and variables is not 
> executed iteratively.  Instead, they are executed recursively, because I'm 
> not quite sure what the semantics of iteratively executing the evaluation 
> of the params would be.
> 
> Dave
> 
> 

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