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Re: (CONTENT NEGOTIATION,VARY) New draft text for Vary header and content negotiation `hooks'

From: Roy T. Fielding <fielding@avron.ICS.UCI.EDU>
Date: Fri, 05 Apr 1996 15:28:54 -0800
To: Koen Holtman <koen@win.tue.nl>
Cc: http-wg%cuckoo.hpl.hp.com@hplb.hpl.hp.com
Message-Id: <9604051528.aa15476@paris.ics.uci.edu>
> 10.u  URI
> 
>    The URI entity-header field is used to inform the recipient of
>    other Uniform Resource Identifiers (Section 3.2) by which
>    the resource can be identified.
> 
>        URI-header  = "URI" ":" 1#( uri-mirror | uri-name )
> 
>        uri-mirror  = "{" "mirror" <"> URI <"> "}"
>        uri-name    = "{" "name" <"> URI <"> "}"
> 
>    Any URI specified in this field can be absolute or relative to the
>    Request-URI. The "mirror" form of URI refers to a location which is a
>    mirror copy of the Request-URI. The "name" form refers to a
>    location-independent name corresponding to the Request-URI.
> 
>    [##Note: According to the issues list, Roy is working on text that
>    explains better what "mirror" and "name" actually mean.##]

This field will be returned to its old definition.  In brief, that is

   The URI entity-header field may contain a list of Uniform Resource
   Identifiers (Section 3.2) which are considered equivalent to the
   Request-URI, but which may be mirror locations or location-independent
   names (URN) for the identified resource.

        URI-header  = "URI" ":" 1#( "<" URI ">" )

The details are actually more complex, but I'll get to that asap.


 ...Roy T. Fielding
    Department of Information & Computer Science    (fielding@ics.uci.edu)
    University of California, Irvine, CA 92717-3425    fax:+1(714)824-4056
    http://www.ics.uci.edu/~fielding/
Received on Friday, 5 April 1996 15:38:19 EST

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