- From: Eric Prud'hommeaux <eric@w3.org>
- Date: Wed, 16 Feb 2011 10:27:59 -0500
- To: Ivan Herman <ivan@w3.org>
- Cc: Percy Enrique Rivera Salas <privera.salas@gmail.com>, RDB2RDF WG <public-rdb2rdf-wg@w3.org>
* Ivan Herman <ivan@w3.org> [2011-02-16 14:47+0100] > Actually, my mail may have been just wasted bandwidth, a.k.a. noise, because the DM explicitly refers to IRI-s already (which is perfectly fine with me!) and so does R2RML. Well, I think we still need to decide something here. Right now, the rule is urlencode everything. This re-uses conventional tools very well, but handles safely but indelicately. http://www.w3.org/2001/sw/rdb2rdf/wiki/R2RML_Test_Cases_v1#Direct_Graph_I18NnoSpecialCharsDG Expected Result 1 shows the impact of urlencoding everything. Expected Result 2 shows what happens if we only escape the characters we need to, i.e. [,#=/>] . > Ivan > > > On Feb 16, 2011, at 14:01 , Percy Enrique Rivera Salas wrote: > > > Dear Ivan, > > > > I guess IRI should be the best choice, following what the other groups have done > > (OWL2, SPARQL, RIF, RDFa) let me reference a discussion about this topic > > in the "Semantic Web Mailing List" in the following link > > > > http://lists.w3.org/Archives/Public/semantic-web/2010Nov/0036.html > > > > Best Regards, > > > > Percy > > > > 2011/2/16 Ivan Herman <ivan@w3.org> > > Guys, > > > > a simple question. What happens if the column name contains non basic ASCII characters? Ie, accented Latin, Russian, Chinese...? > > > > For Direct Mapping: We have to decide whether we use IRIs or whether the default is to convert IRIs into URIs according to the specs. My instinct would be to generate IRIs, but I am not sure the tooling around us is good enough. > > > > For R2RML: I am not familiar enough with SQL to know whether its usage to generate a virtual table covers all the possibilities. Ie, if I want to convert into URI, is it a trivial thing to do? Is it worth having some shorthands like the templates? > > > > This may not be a serious issue. But it is certaintly worth writing it down somewhere in the documents > > > > Ivan > > > > ---- > > Ivan Herman > > Tel:+31 641044153 > > http://www.ivan-herman.net > > > > > > > > > > > ---- > Ivan Herman, W3C Semantic Web Activity Lead > Home: http://www.w3.org/People/Ivan/ > mobile: +31-641044153 > PGP Key: http://www.ivan-herman.net/pgpkey.html > FOAF: http://www.ivan-herman.net/foaf.rdf > > > > > -- -ericP
Received on Wednesday, 16 February 2011 15:28:36 UTC