Re: [urn] CTS and CITE2 URNs
Martin J. Dürst <duerst@it.aoyama.ac.jp> Fri, 22 March 2019 05:38 UTC
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From: "Martin J. Dürst" <duerst@it.aoyama.ac.jp>
To: Peter Saint-Andre <stpeter@stpeter.im>, "urn@ietf.org" <urn@ietf.org>
Thread-Topic: [urn] CTS and CITE2 URNs
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Date: Fri, 22 Mar 2019 05:38:21 +0000
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Subject: Re: [urn] CTS and CITE2 URNs
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Hello Peter, others, Sorry to reply to an older email. On 2019/03/07 13:02, Peter Saint-Andre wrote: > On 3/4/19 11:58 PM, Hakala, Juha E wrote: > >> I am in favour of registering these namespaces. The only reservation I have is the usage of "@" to separate subreferences. Would it be possible to use hash character for this purpose? >> >> At https://cite-architecture.github.io/ohco2/quick/ >> >> the researchers themselves give the following example: >> >> urn:cts:greekLit:tlg5026.msA.hmt:1.2.lemma#μῆνις > A follow-on observation. As the genesis of the CTS and CITE2 namespaces > within the Homer Multitext project indicates, it might be desirable for > literal strings in the NSS to include characters outside the ASCII range > (e.g., `μῆνις`). I suspect that such strings would be limited to the > PASSAGE and SUBREFERENCE constructs, but perhaps the registrants could > clarify that for us. In any case, here it seems that "the nature of the > particular URN namespace makes such characters necessary" (RFC 8141, §2.2). > > However, the same section of RFC 8141 also clearly states: > > In particular, with regard to characters outside the ASCII range, > URNs that appear in protocols or that are passed between systems MUST > use only Unicode characters encoded in UTF-8 and further encoded as > required by RFC 3986. > > As far as I can see, this implies that the foregoing PASSAGE value needs > to be encoded as follows: > > `1.2.lemma#%CE%BC%E1%BF%86%CE%BD%CE%B9%CF%82` > > Unfortunately, that's not as user-friendly for people who know the > language of the source text from which the literal string is taken. > > (Yes, the URNBIS Working Group had lengthy discussions about whether to > allow non-percent-encoded Unicode characters outside the ASCII range in > the URN syntax, and ultimately decided against it.) Well, all URNs are URIs (RFC 3986), and for URIs, there's IRIs (RFC 3987), so urn:cts:greekLit:tlg5026.msA.hmt:1.2.lemma#μῆνις would work in any protocol slot that accepted IRIs, and would automatically be converted to the ugly urn:cts:greekLit:tlg5026.msA.hmt:1.2.lemma#%CE%BC%E1%BF%86%CE%BD%CE%B9%CF%82 whenever necessary. Regards, Martin.
- [urn] CTS and CITE2 URNs Peter Saint-Andre
- Re: [urn] CTS and CITE2 URNs Hakala, Juha E
- Re: [urn] CTS and CITE2 URNs Smith, Neel
- Re: [urn] CTS and CITE2 URNs Julian Reschke
- Re: [urn] CTS and CITE2 URNs Peter Saint-Andre
- Re: [urn] CTS and CITE2 URNs Dale R. Worley
- Re: [urn] CTS and CITE2 URNs Peter Saint-Andre
- Re: [urn] CTS and CITE2 URNs Hakala, Juha E
- Re: [urn] CTS and CITE2 URNs Martin J. Dürst
- Re: [urn] CTS and CITE2 URNs Martin J. Dürst
- Re: [urn] CTS and CITE2 URNs Dale R. Worley
- Re: [urn] CTS and CITE2 URNs Julian Reschke
- Re: [urn] CTS and CITE2 URNs Dale R. Worley
- Re: [urn] CTS and CITE2 URNs Julian Reschke
- Re: [urn] CTS and CITE2 URNs Peter Saint-Andre
- Re: [urn] CTS and CITE2 URNs Peter Saint-Andre