Re: [xml-dev] Multiple instances of an attribute Re: [xml-dev]Towards XM

[nicolas debeissat <ndebeiss@gmail.com>]

So what you want is to be able to plug other parsers (JSON, XPath, etc...) to a SAX parser, specifying the parser to be used in the XML, without the declaration of a schema. That is interesting.
So a structure like :
<root>
   <tag><![JSON[
{ 'valueArray" : ["1", "2", "3"] }
]]></tag>
</root>

would be directly accessed with an expression :  
root.tag.valueArray[2]
I think that should be studied. After all, values contained in all those data languages are accessed vertically (hierarchically) or horizontally (ordered array).
I think the parser to be used for the value should be written in the syntax itself, not a xml:json attribute which mixes data and metadata.

Nicolas Debeissat

2010/12/10 Stephen Green <stephengreenubl@gmail.com>

Maybe the xml:json means the newXML parser can do evaluations immediately
rather than relying on an XSLT/XPath processor downstream? Plus it can use
the xml:json to turn the data into objects which include structure found in the
values of attributes?
----
Stephen D Green

On 10 December 2010 10:20, David Carlisle <davidc@nag.co.uk> wrote:
> On 10/12/2010 10:10, Stephen Green wrote:
>>
>> The xml:json would not need a schema to distinguish an unordered list or
>> array
>> from a sequenced one so the parser would know whether to treat the order
>> as
>> significant without having to load and understand a schema or be
>> programmed
>> with being able to read different kinds of schema language, etc. That
>> seems to
>> me a crucial difference and there may be others.
>
> yes but that doesn't answer the question as to why it would be useful to do
> that in a general XML context, as in my xpath example, why would it be
> useful to know it's a sequence of integers if you don't know everything else
> you needed to know about evaluating xpath (or json) and if you do know how
> to evaluate xpath it's not too hard to know that it is contained in
> particular attributes.
>
> (x)html doesn't need a schema to tell it that what is in a script element is
> javascript/json
>
> David
>
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