W3C home > Mailing lists > Public > public-linked-json@w3.org > March 2013

Re: [json-ld.org] JSON-LD in HTML (#231)

From: Gregg Kellogg <gregg@greggkellogg.net>
Date: Fri, 22 Mar 2013 09:29:31 -0700
Cc: "'David Wood'" <david@3roundstones.com>, "'W3C RDF WG'" <public-rdf-wg@w3.org>, "'JSON-LD JSON'" <public-linked-json@w3.org>
Message-Id: <7A338469-8E22-437A-8316-FD7EA408BBA8@greggkellogg.net>
To: Markus Lanthaler <markus.lanthaler@gmx.net>
On Mar 22, 2013, at 8:47 AM, Markus Lanthaler <markus.lanthaler@gmx.net> wrote:

> On Friday, March 22, 2013 3:48 PM, David Wood wrote:
> 
>> Hi all,
>> 
>> I tend toward Gregg's comments below.  The section only
>> applies to those people extracting JSON-LD content into RDF,
>> therefore those wishing to "just use JSON-LD" shouldn't need
>> to worry about it.
> 
> The section says:
> 
> [[[
> If a processor extracts the JSON-LD content into RDF, it should expand the
> JSON-LD fragment into an RDF dataset using the algorithm defined in
> JSON-LD-API Convert to RDF Algorithm [JSON-LD-API]. If the HTML file
> contains multiple JSON-LD script tags, or other RDF statements are
> extracted, the result is the RDF merge of the datasets.
> 
> Other processors implementing this mechanism may choose to return the
> expanded JSON-LD output.
> ]]]
> 
> I'm specifically worried about the second paragraph. This suggest (to me at
> least), that other (?) processors should return expanded JSON-LD output
> instead of returning it as is. I would be satisfied if we clarify that
> second part. Maybe rewriting the two paragraphs above to:
> 
> 
> Defining how such data may be used is beyond the scope of this
> specification. The embedded JSON-LD document might be extracted as is or
> converted to RDF.
> 
> If JSON-LD content is extracted as RDF, it should be expanded into an RDF
> dataset using the Convert to RDF Algorithm [JSON-LD-API]. If multiple
> embedded JSON-LD documents are extracted as RDF, the result is the RDF merge
> of the extracted datasets.

Ii think this is a reasonable clarification, but we also need to consider if the JSON-LD is extracted, is it processed in any way? Is the result multiple documents? Or, some kind of merger of the documents?

My concern was specifically for extracting RDF, so that JSON-LD is in harmony with Turtle in HTML and a possibly forthcoming Note on the subject. Perhaps it's best to not say anything about what processors should do for anything other than RDF extraction.

Gregg

> This probably still needs some wordsmithing but I hope it's clear what I'm
> looking for :-)
> 
> 
> Cheers,
> Markus
> 
> 
> --
> Markus Lanthaler
> @markuslanthaler
> 
> 
Received on Friday, 22 March 2013 16:30:02 UTC

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