Re: [vwrap] Working Draft: SNOW-375

[Dzonatas Sol <[e-mail]>]

Joshua Bell wrote:
>
> >>>>
> Payloads that contain nested XML structures may not work well with 
> JSON, so only LLSD is supported. This could be resolved with JSON 
> specific queries, yet Snowglobe would still internally have to convert 
> LLSD to JSON, so that would be an implementation detail on the 
> transport layer.
> <<<<
>
> Can you elaborate here? Do you mean payloads that contain XML 
> fragments, where an XML document serialization would be more natural 
> than JSON with XML islands? Or...?
>
> I'm a big fan of JSON despite the sparse types meaning it's not a 
> perfect serialization format for LLSD, and have been a heavy user of 
> XML, so understanding your issue is important to me.
>
>

In such cases for XML, I currently assume that full secure 
encapsulation/canonicalization is needed to pass on sanity to non-XML 
formats. If we assume XML only, then one valid XML structure is directly 
implantable into another XML structure where allowed (ambiguous tags, 
variable DTDs, intra-tags). I don't see a way for JSON to support 
intra-tags.

I have written raw XML parsers that fold and unfold structures 
dynamically, and the parser knows nothing about its data or types. I 
could apply such technique instead of encapsulation.

When people say they don't like XML, I know they actually mean they 
don't like DTDs, which should have been a separate standard than raw XML.

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