- From: Dan Connolly <connolly@w3.org>
- Date: Fri, 09 Feb 2007 11:30:27 -0600
- To: Harry Halpin <hhalpin@ibiblio.org>
- Cc: GRDDL Working Group <public-grddl-wg@w3.org>
Harry,
I gather you're exploring GRDDL link design options that
use only the already-registered Link: header field.
This won't work:
Link: <http://www.w3.org/2000/06/dc-extract/dc-extract.xsl>;
rel="transformation";
profile="http://www.w3.org/2003/g/data-view"
The BNF in for Link[iana] doesn't have a profile param:
Link = "Link" ":" #("<" URI ">" *( ";" link-param )
link-param = ( ( "rel" "=" relationship )
| ( "rev" "=" relationship )
| ( "title" "=" quoted-string )
| ( "anchor" "=" <"> URI <"> )
| ( link-extension ) )
The "profile" term could match link-extension, but then we're back
to asking the IETF/IESG for an extension, and the Profile: header
proposal[mnot] is more mature than anything we'd make up now.
So I don't recommend re-opening the design discussion.
[mnot]
http://www.mnot.net/drafts/draft-nottingham-http-link-header-00.txt
[iana] http://www.faqs.org/rfcs/rfc2068.html
which is cited from section 2.1.62. Header field: Link of
HTTP Header Field Registrations December 2005
http://www.rfc-editor.org/rfc/rfc4229.txt
which is the reference for Link in the permanent
header registry.
http://www.iana.org/assignments/message-headers/perm-headers.html
which was established by IETF consensus recorded in
Registration Procedures for Message Header Fields September 2004
http://www.rfc-editor.org/rfc/rfc3864.txt
--
Dan Connolly, W3C http://www.w3.org/People/Connolly/
D3C2 887B 0F92 6005 C541 0875 0F91 96DE 6E52 C29E
Received on Friday, 9 February 2007 17:30:33 UTC