- From: Peter DeVries <pete.devries@gmail.com>
- Date: Tue, 18 Jan 2011 21:43:08 -0600
- To: Martin Hepp <martin.hepp@ebusiness-unibw.org>
- Cc: public-lod@w3.org
- Message-ID: <AANLkTim373Y6YtWUvoqcc0-Zh=sd6AFO9C3DmwGta2m0@mail.gmail.com>
Hi Martin, I have URI's where case is important only at the terminal identifier. (HTML URI's in this example) http://lod.taxonconcept.org/ses/v6n7p.html <http://lod.taxonconcept.org/ses/v6n7p.html>should be different than http://lod.taxonconcept.org/ses/v6N7p.html Am I correct in thinking that this is OK? I went with this structure so I could have short bit.ly like identifiers for potentially millions of species. Thanks, - Pete On Mon, Jan 17, 2011 at 9:51 AM, Martin Hepp < martin.hepp@ebusiness-unibw.org> wrote: > Dear all: > > RFC 2616 [1, section 3.2.3] says that > > "When comparing two URIs to decide if they match or not, a client SHOULD > use a case-sensitive octet-by-octet comparison of the entire > URIs, with these exceptions: > > - A port that is empty or not given is equivalent to the default > port for that URI-reference; > - Comparisons of host names MUST be case-insensitive; > - Comparisons of scheme names MUST be case-insensitive; > - An empty abs_path is equivalent to an abs_path of "/". > > Characters other than those in the "reserved" and "unsafe" sets (see > RFC 2396 [42]) are equivalent to their ""%" HEX HEX" encoding. > > For example, the following three URIs are equivalent: > > http://abc.com:80/~smith/home.html > http://ABC.com/%7Esmith/home.html > http://ABC.com:/%7esmith/home.html > " > > Does this also hold for identifying RDF resources > > a) in theory and > b) in practice (e.g. in popular triplestores)? > > I did not test it yet, but I assume that not all implementations would > treat > > http://purl.org/NET/c4dm/event.owl#Event > HTTP://purl.org/NET/c4dm/event.owl#Event > http://PURL.org/NET/c4dm/event.owl#Event > http://purl.org:80/NET/c4dm/event.owl#Event > > as the same class. > > Any facts or opinions? > > Best > > Martin > > > [1] http://www.ietf.org/rfc/rfc2616.txt > > -------------------------------------------------------- > martin hepp > e-business & web science research group > universitaet der bundeswehr muenchen > > e-mail: hepp@ebusiness-unibw.org > phone: +49-(0)89-6004-4217 > fax: +49-(0)89-6004-4620 > www: http://www.unibw.de/ebusiness/ (group) > http://www.heppnetz.de/ (personal) > skype: mfhepp > twitter: mfhepp > > > -- --------------------------------------------------------------- Pete DeVries Department of Entomology University of Wisconsin - Madison 445 Russell Laboratories 1630 Linden Drive Madison, WI 53706 TaxonConcept Knowledge Base <http://www.taxonconcept.org/> / GeoSpecies Knowledge Base <http://lod.geospecies.org/> About the GeoSpecies Knowledge Base <http://about.geospecies.org/> ------------------------------------------------------------
Received on Wednesday, 19 January 2011 03:43:42 UTC