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Re: [xml-dev] List of differences between XML and JSON?

On Sat, 2015-05-02 at 00:20 +0100, Michael Kay wrote:
> > 

> We've made choices in the way we model XML for processing, for 
> example we provide a parent axis so when you are at a node, you can 
> find its parent. That's convenient for many kinds of processing, but 
> it makes it very hard for two XML trees to share a subtree, which 
> makes it expensive to make small modifications to a large tree. 

I've used two or three XML (and SGML) editors that didn't work that 
way exactly, in order to support entities that remain in place on 
export -- with the contents of each entity being shared across 
multiple entity references. Serna was one such editor.

The XDM isn't the only possible data model for XML, of course.

> I don't think there's anything in the BNF of XML or JSON that made 
> those different design choices inevitable.



> Michael Kay
> Saxonica
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