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Re: Explicit WOFF metadata format declaration?

From: Chris Lilley <chris@w3.org>
Date: Thu, 18 Nov 2010 17:52:27 +0100
Message-ID: <384643111.20101118175227@w3.org>
To: Laurence Penney <lorp@lorp.org>
CC: www-font@w3.org
On Thursday, November 18, 2010, 4:36:48 PM, Laurence wrote:

LP> Is there any merit in the idea of a 'format' attribute in the root <metadata> element?

LP> I ask because it seems likely that WOFF XML metadata will find
LP> itself sometimes separated from the WOFF files for which it is
LP> intended. For example, XML may be exported from an editor before
LP> being imported into a WOFF font via sfnt2woff; or font vendors may
LP> use an XML template file, which has some of its contents replaced
LP> programmatically before being embedded into a WOFF. In such cases
LP> it  seems beneficial to identify the XML, unambiguously, as WOFF
LP> metadata. The generic <metadata> tag is insufficient for this.

Fair point, and I would not be opposed to adding @format to the metadata element.

LP> If this proposal is attractive, I propose the standard value
LP> "font/woff" for the format attribute. It would be a MAY not a MUST in the spec, of course.

Please see discussions on media type at the Lyon f2f meeting. In the end we decided to go with application/font-woff because past experience showed that attempting to registera font top level type would encounter significant resistance at IANA.

 Chris Lilley   Technical Director, Interaction Domain                 
 W3C Graphics Activity Lead, Fonts Activity Lead
 Co-Chair, W3C Hypertext CG
 Member, CSS, WebFonts, SVG Working Groups
Received on Thursday, 18 November 2010 16:52:56 UTC

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