[whatwg] Annotating structured data that HTML has no semantics for

[James Graham]

jgraham at opera.com wrote:
> Quoting Philip Taylor <excors+whatwg at gmail.com>:
> 
>> On Sun, May 10, 2009 at 11:32 AM, Ian Hickson <ian at hixie.ch> wrote:
>>>
>>> One of the more elaborate use cases I collected from the e-mails sent in
>>> over the past few months was the following:
>>>
>>>   USE CASE: Annotate structured data that HTML has no semantics for, and
>>>   which nobody has annotated before, and may never again, for private 
>>> use or
>>>   use in a small self-contained community.
>>>
>>> [...]
>>>
>>> To address this use case and its scenarios, I've added to HTML5 a simple
>>> syntax (three new attributes) based on RDFa.
>>
>> There's a quickly-hacked-together demo at
>> http://philip.html5.org/demos/microdata/demo.html (works in at least
>> Firefox and Opera), which attempts to show you the JSON serialisation
>> of the embedded data, which might help in examining the proposal.
> 
> I have a *totally unfinished* demo that does something rather similar
> at [1]. It is highly likely to break and/or give incorrect results**.
> If you use it for anything important you are insane :)

I have now added extremely preliminary RDF support with output as N3 and 
  RDF/XML courtesy of rdflib. It is certain to be buggy.