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- From: Brewster Kahle <brewster@think.com>
-
- Date: Tue, 18 Feb 92 14:25:04 GMT+0100
- From: timbl@nxoc01.cern.ch (Tim Berners-Lee)
-
- Tim:
- ... This relies on the headline [of an archie index]
-
- starting with host:/filename.
-
- Brewster:
-
- I wish we used /filename@hostname so that waisretrieve could handle it (and
- be compatible with the WAIS doc-id.
-
- Tim:
-
- Well, Brester, I wish that we used //hostname/filename so that it would be
- directly compatible with the W3 doc-id ;-). In fact, of course, the user never ses
- the doc-ids themselves as he browses.
-
- But seriously, Brewster, you suggested to John Curran <jcurran@nnsc.nsf.net> that,
- on the subject of document ids, "[Brewster's] proposal that is on the table is
- worth implementing for a good run". I would suggest that John look at w3 Universla
- Document Identifiers as a similar but more open and more established scheme. W3
- has been running now for 18 months or so using the UDI syntax and the addressing
- syntax has expanded easily to include wais and now gopher. The www retrieval engine
- will handle any of these, FTP access and news access etc.
-
- When x500 document naming becomes practical, it will be important that the UDI
- scheme can expand to accept x500 names.
-
- There is nothing proprietory or w3-specific about w3 UDIs. They are generic,
- caonnonical and univeral. Could I strongly suggest that you extend waisretrieve to
- use UDIs?
-
- [Your objection to the w3 UDIs was that you prefered "@" to "//" because you wanted
- to use parsers written for mail. Is that is a strong enough reason for inventing a
- new, wais-specific scheme instead of using an existing, open one? Actually, the w3
- scheme uses @ for //user@hostname/ when a username is needed, which is even more
- mail-like. The choice of punctuation is of course fairly arbitrary.]
-
- The universal document identifier syntax is dead simple. It is described in BNF in
- /pub/www/doc/udi.txt. Comments from all parties who haven't seen it before are
- solicited.
-
- We must to put systems together to make the information universe happen, and not
- quarrel about trivia. We must remain open to the future.
-
- I must put down the reasons for UDIs in a paper, but they're probably obvious to
- everyone on these lists....
-
- Tim
-
-