Re: [xml-dev] Serialization of XDM

[Rick Jelliffe <rjelliffe@allette.com.au>]

Michael Kay wrote:
>>> There is no standard or even 'community accepted' way of 
>>>       
>> serializing XDM
>>     
>
>   
>> What is wrong with JSON for this?
>>     
>
> Nearly everything, starting with the fact that the target user community is
> likely to want something that can be manipulated using XML tools. 
>   
I think this may be shifting the goal post. The JSON can be reimported 
into the XDM-aware tools. Non-XDM tools will need extra programming to 
cope with the unknown semantics and type annotation information in the 
XDM-in-XML dump in any case.
> In fact, what is right with JSON for this?
>   
It has sequences (arrays) which was the problem being complained of. It 
can be exported into XDM and imported back, with minimal conventions. It 
has explicit types.

>> The XPath2 data model is a system for *converting* XML into 
>> programming language types, or for operating on a kind of XSD 
>> PSVI. 
>>     
>
> That's not how I would define it (and it's not how the spec defines it). In
> fact, I don't really see where conversion into "programming language types"
> comes into it at all.
>   
s/system for/part of a system for/

XML Infoset != XDM. Therefore a conversion is needed. Hence XSD and 
XSLT2 (not exhausting all their serried splendours by saying they are 
limited to this conversion.)

Cheers
Rick