13:16:18 RRSAgent has joined #rdfa 13:16:18 logging to http://www.w3.org/2010/09/30-rdfa-irc 13:16:20 RRSAgent, make logs world 13:16:20 Zakim has joined #rdfa 13:16:22 Zakim, this will be 7332 13:16:22 ok, trackbot; I see SW_RDFa()10:00AM scheduled to start in 44 minutes 13:16:23 Meeting: RDFa Working Group Teleconference 13:16:23 Date: 30 September 2010 13:16:32 Chair: Ivan 13:16:40 Regrets: Manu, Mark 13:58:19 zakim, dial ivan-voip 13:58:19 ok, ivan; the call is being made 13:58:20 SW_RDFa()10:00AM has now started 13:58:22 +Ivan 13:58:49 Steven__ has joined #rdfa 13:59:10 ShaneM has joined #rdfa 13:59:41 webr3 has joined #rdfa 13:59:50 yes 14:00:15 trackbot, start telcon 14:00:17 RRSAgent, make logs world 14:00:19 Zakim, this will be 7332 14:00:19 ok, trackbot; I see SW_RDFa()10:00AM scheduled to start now 14:00:20 Meeting: RDFa Working Group Teleconference 14:00:20 Date: 30 September 2010 14:00:21 Knud has joined #rdfa 14:00:37 zakim, who is here? 14:00:37 I notice SW_RDFa()10:00AM has restarted 14:00:39 On the phone I see Ivan 14:00:40 On IRC I see Knud, NathanR, ShaneM, Steven__, Zakim, RRSAgent, ivan, trackbot 14:01:05 + +1.612.217.aaaa 14:01:08 -Ivan 14:01:10 +Ivan 14:01:13 zakim, aaaa is ShaneM 14:01:14 +ShaneM; got it 14:01:39 +[IPcaller] 14:01:56 + +1.441.592.aabb 14:02:03 zakim, IPcaller is Knuth 14:02:03 +Knuth; got it 14:02:15 zakim, aabb is NathanR 14:02:15 +NathanR; got it 14:02:21 zakim, IPcaller is Knud 14:02:21 sorry, Knud, I do not recognize a party named 'IPcaller' 14:02:33 zakim, Knuth is Knud 14:02:35 +Knud; got it 14:02:39 zakim, dial steven-617 14:02:51 ok, Steven__; the call is being made 14:02:59 +Steven 14:03:51 zakim, who is on the phone? 14:04:03 On the phone I see Ivan, ShaneM, Knud, NathanR, Steven 14:04:17 scribe: Knud 14:04:22 scribenick: Knud 14:05:44 Ivan: welcome to Nathan, we know him from the mailing list as an active contributor 14:05:59 ...: Nathan joins as an invited expert 14:06:14 Topic: Issue 40 14:06:22 -> http://www.w3.org/2010/02/rdfa/track/issues/40 14:06:35 "Empty element should not create literals" 14:07:30 q+ to agree that the empty triples should be generated 14:07:35 Nathan: I think empty triples should be generated 14:07:36 I agree 14:07:53 zakim, mute shane 14:07:53 ShaneM should now be muted 14:08:07 ...: there might be situations where you _want_ an empty string, like not having a middle name 14:08:28 zakim, unmute ShaneM 14:08:28 ShaneM should no longer be muted 14:08:30 q? 14:08:31 ack Shane 14:08:31 ShaneM, you wanted to agree that the empty triples should be generated 14:08:37 q+ 14:08:38 ...: this would be just moving the problem 14:08:43 ack ivan 14:08:53 q+ Shane 14:09:31 ivan: it would still possible to generate an empty string with @content 14:09:52 ack ShaneM 14:10:16 q+ 14:10:20 ack Shane 14:10:30 ack Steven__ 14:10:30 shane: agree with Nathan - RDFa is just another serialisation, why should there be a special case for it? 14:11:06 steven: I also agree. It would be wrong to not create empty literals 14:11:15 PROPOSED: empty elements should generate empty literals (Issue-40) 14:11:22 +1 14:11:27 +1 14:11:27 +1 14:12:08 PROPOSED: not to accept the change request in Issue-40 14:12:09 +1 14:12:14 +1 14:12:18 +1 14:12:23 RESOLVED: not to accept the change request in Issue-40 14:12:56 ivan: not formally closed, because too many active people missing 14:13:02 TOPIC: Issue-35 14:13:10 -> http://www.w3.org/2010/02/rdfa/track/issues/35 14:13:15 "Consider relationship between LinkTypes in RDFa and the IETF LinkType registry" 14:14:39 shane: there is work having to do with http headers. creating a registry for values of @rel 14:15:13 ...: however, what we do is slightly different than usually. 14:15:30 ...: our values of @rel are terms, and is extenable 14:15:40 ...: hostlanguages can define their own terms 14:15:44 q+ 14:15:54 ack ivan 14:16:03 ...: hostlanguages could worry about linking, registering, etc. those terms with the IETF 14:16:24 ivan: however, we plan to define a default profile (of terms) for XHTML 14:17:21 shane: exactly. We define terms, can look for correlations, but we should not have a dependency to the IETF 14:18:01 PROPOSED: RDFa does not introduce an explicit dependency on the LinkTypes registry (Issue-35) 14:18:15 +1 14:18:18 +1 14:18:18 +1 14:18:20 +1 14:18:23 +1 14:18:45 knud: should we explain that in the specs? 14:19:25 RESOLVED: RDFa does not introduce an explicit dependency on the LinkTypes registry (Issue-35) 14:19:31 ivan: that's probably not necessary 14:20:00 ...: it was Manu who raised this initially 14:20:16 shane: on a related note - this has to do with case-sensitivity of terms 14:20:27 ...: in the IETF, they are case-sensitive 14:21:37 ...: in RDFa core, they are case-insensitive 14:21:55 Topic: URI strings in literal 14:22:13 "Any plain literal that does not have a (possibly empty) @datatype that matches the regex for a URL MUST be treated as an IRI object in RDFa." 14:22:56 http://lists.w3.org/Archives/Public/public-rdfa-wg/2010Sep/0127.html 14:23:41 ivan: many people do not make a difference between URIs appearing as a literal, or as an attribute value of special attributes 14:24:53 q+ 14:24:57 ack Steven__ 14:25:58 steven: can we not apply a datatype to make a literal a URI? 14:26:05 ivan: this is not possible at the moment 14:26:58 ...: there is currently no corresponding xsd datatype 14:27:08 q+ 14:27:47 ...: and we cannot use "anyURI" 14:28:36 ...: there are legitimate cases where I want to have a literal, a string, which conforms to the URI spec 14:28:56 ack NathanR 14:29:05 q+ 14:29:12 ...: anyway, this would not help people like FB, because they won't ask their developers to use this datatype 14:29:54 ack Steven__ 14:30:01 q+ to ask about datatypes 14:30:20 nathan: we should go with the common case. basically agree with the proposal 14:30:56 q+ 14:31:03 q- 14:31:13 steven: this means that, every time we have a non-datatype string, we have to check if the string is an acceptable URI 14:31:18 fubar == xsd:anyURI 14:31:29 ...: problem: "fubar" is an acceptable relative URI 14:31:59 ivan: we may have to restrict to absolute URIs 14:32:28 ../foo & iso: & "" (0-length-string) all == xsd:anyURI 14:32:39 relative0uri* 14:32:40 ack ShaneM 14:32:40 ShaneM, you wanted to ask about datatypes 14:32:43 q? 14:32:45 steven: there would still be lots of things that might be parsed as a URI. lots of string with a colon in it, for example 14:33:45 shane: I also see this problem. Also, we will probably need to allow relative URIs. e.g., resource="#foo", resource="picture.jpg" 14:33:45 xsd:integerยจ 14:34:02 xsd:integer would be seen as a URI 14:34:38 nathan <--- would be a valid uri ref 14:34:51 14:34:52 Not for an abs URI 14:35:35 q+ 14:36:09 ack NathanR 14:36:29 q+ 14:36:37 ack Steven__ 14:36:50 xsd:integer 14:36:52 nathan: I also agree this is a problem. maybe less of a problem with absolute URIs 14:37:21 mailto:shane 14:37:22 steven: but even absolute URIs (that are meant to be URIs) are very hard to detect 14:37:32 urn:... 14:37:43 ...: isbn:43290489fj is an absolute URI 14:38:09 ivan: so, we might have to agree on a family of URI schemes that have to be matched 14:40:12 ...: is there an official registry of schemes? 14:40:26 shane: yes, there is the IETF scheme 14:41:00 skype: 14:41:56 steven: but not everybody uses this registry. Like Apple. 14:42:33 ivan: people using unregistered URI schemes could still use the "normal" way of specifying URIs, via @resource 14:43:31 ACTION: shane to find reference to the IETF registry 14:43:31 Created ACTION-38 - Find reference to the IETF registry [on Shane McCarron - due 2010-10-07]. 14:43:35 Information on registring URI schemes: http://tools.ietf.org/html/rfc4395 14:43:49 ACTION-38: closed 14:43:49 ACTION-38 Find reference to the IETF registry notes added 14:43:49 If you meant to close ACTION-38, please use 'close ACTION-38' 14:43:58 close ACTION-38 14:43:58 ACTION-38 Find reference to the IETF registry closed 14:44:50 steven: I would really like to find a general solution, not a hacky one 14:46:49 shane: we can still define a term to instruct the RDFa processor to interprete something as a URI 14:47:19 14:47:26 http://example.com 14:48:15 14:48:24 ivan: this is probably just as difficult for the FB-esque community 14:49:05 nathan: it's also not backwards compatible 14:51:31 q+ 14:52:25 shane: if the OGP had an RDFa profile, and if the profile could define that certain properties have their values interpreted as a URI? 14:53:45 ...: so we could invoke "follow-your-nose". the definition of og:fdhskfj could specify that it's value is an rdf:resource 14:54:55 ack NathanR 14:54:55 ivan: this is impossible to define in the current framework 14:56:39 nathan: long-term solution: a way for properties to define their ranges as needed here 14:58:15 zakim, drop me 14:58:15 -Steven 14:58:16 -NathanR 14:58:18 Ivan is being disconnected 14:58:20 -Ivan 14:58:22 -Knud 14:58:24 -ShaneM 14:58:26 SW_RDFa()10:00AM has ended 14:58:28 Attendees were Ivan, +1.612.217.aaaa, ShaneM, +1.441.592.aabb, NathanR, Knud, Steven 14:59:23 rrsagent, draft minutes 14:59:23 I have made the request to generate http://www.w3.org/2010/09/30-rdfa-minutes.html ivan 15:04:06 ShaneM has left #rdfa 15:25:47 NathanR has left #rdfa 17:03:42 Zakim has left #rdfa 18:23:03 Steven__ has left #rdfa 20:16:42 tinkster has joined #rdfa