Re: [Flac-dev] Metadata & RDF
On 01/10/06, Ralph Giles <[EMAIL PROTECTED]> wrote: On Sun, Oct 01, 2006 at 01:17:32PM +0200, Danny Ayers wrote: > Not always - the following is valid (though rather unusual!) RDF/XML : > > http://www.w3.org/1999/xhtml";> > >Mixup > > I wonder if that's a bug, since there's not actually any RDF there, and this would detect as xhtml by a reader. Not a bug, it's spec-valid RDF (though pretty meaningless), but invalid XHTML. > Yep. Hmm, if there was a neat way to provide the media (mime) type it > could also be useful for non-XML docs as well. Otherwise an easy > workaround for RDF might be to specify that the root element for RDF > docs must be xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"; /> (as was the > case in the pre-2004 RDF specs). Seems reasonable for this application. I guess I've not read the more recent specs. Yeah, a whole raft of the things in 2004, varying degrees of (in)comprehensibility... http://www.w3.org/RDF/ They include a Primer, but the stuff at http://www.rdfabout.com/ is a bit more approachable (especially the 30 second intro). Isn't there a connotation of the RDF describing the xml document it's embedded in if it's not the root element? The usual way to refer to the current doc (on the Web) is rdf:about="", I think I'd better ask around a bit on this, it might not be quite so straightforward when you've got ((data block)(metadata block)). Cheers, Danny, -- http://dannyayers.com ___ Flac-dev mailing list Flac-dev@xiph.org http://lists.xiph.org/mailman/listinfo/flac-dev
Re: [Flac-dev] Metadata & RDF
On Sun, Oct 01, 2006 at 01:17:32PM +0200, Danny Ayers wrote: > Not always - the following is valid (though rather unusual!) RDF/XML : > > http://www.w3.org/1999/xhtml";> > >Mixup > > I wonder if that's a bug, since there's not actually any RDF there, and this would detect as xhtml by a reader. > Yep. Hmm, if there was a neat way to provide the media (mime) type it > could also be useful for non-XML docs as well. Otherwise an easy > workaround for RDF might be to specify that the root element for RDF > docs must be xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"; /> (as was the > case in the pre-2004 RDF specs). Seems reasonable for this application. I guess I've not read the more recent specs. Isn't there a connotation of the RDF describing the xml document it's embedded in if it's not the root element? -r ___ Flac-dev mailing list Flac-dev@xiph.org http://lists.xiph.org/mailman/listinfo/flac-dev
Re: [Flac-dev] Metadata & RDF
On 30/09/06, Ralph Giles <[EMAIL PROTECTED]> wrote: On Sat, Sep 30, 2006 at 12:21:53PM +0200, Danny Ayers wrote: > Basically I'd like to embed arbitrary (meta)data in flac files. I agree it would be best to define a new block type for RDF metadata, or probably better for random attached XML data, That sounds reasonable, but... and let the xml parser figure out what schema it's using. It's easy to recognize RDF-in-XML Not always - the following is valid (though rather unusual!) RDF/XML : http://www.w3.org/1999/xhtml";> Mixup http://www.w3.org/RDF/Validator/ARPServlet?URI=http%3A%2F%2Fdannyayers.com%2Fcode%2Fminimal-xhtml.html&PARSE=Parse+URI%3A+&TRIPLES_AND_GRAPH=PRINT_TRIPLES&FORMAT=PNG_EMBED&EMBEDDED_RDF=on&ANON_NODES_EMPTY=on&NODE_COLOR=Black&NODE_TEXT_COLOR=Blue&EDGE_COLOR=Darkgreen&EDGE_TEXT_COLOR=Red&FONT_SIZE=10&ORIENTATION=LR#graph but retains flexibility for people to add other XML encoded metadata in the future. Yep. Hmm, if there was a neat way to provide the media (mime) type it could also be useful for non-XML docs as well. Otherwise an easy workaround for RDF might be to specify that the root element for RDF docs must be http://www.w3.org/1999/02/22-rdf-syntax-ns#"; /> (as was the case in the pre-2004 RDF specs). Cheers, Danny. -- http://dannyayers.com ___ Flac-dev mailing list Flac-dev@xiph.org http://lists.xiph.org/mailman/listinfo/flac-dev
