Registration of media type image/svg+xml
Chris Lilley
chris at w3.org
Fri Dec 16 11:53:12 CET 2005
On Friday, December 16, 2005, 2:26:53 AM, MURATA wrote:
Chris>> Optional parameters:
Chris>> None
Chris>>
Chris>> The encoding of an SVG document shall be determined by the
Chris>> XML encoding declaration. This has identical semantics to the
Chris>> application/xml media type in the case where the charset
Chris>> parameter is omitted, as specified in RFC3023 sections
Chris>> 8.9, 8.10 and 8.11.
MM> The W3C TAG finding "Internet Media Type registration, consistency of use"
MM> says:
MM> We recommend that section 7.1 of [RFC3023] be amended to
MM> something like the following:
MM> The use of the charset parameter, when the charset is reliably
MM> known and agrees with the encoding declaration, is RECOMMENDED,
MM> since this information can be used by non-XML processors to
MM> determine authoritatively the charset of the XML MIME entity.
MM> Chris is behind this TAG finding, and I agree.
To clarify - I am not the sole or even primary author of that TAG
finding, but I stand behind it as an ex member of the TAG.
However, i am delighted to hear you say that you support the wording in
the TAG finding and support it's incorporation into RFC 3066 bis.
MM> Chris and I are co-editors for RFC 3023 bis.
Yes.
Once we can have the language you quote above in RFC 3023bis, I
would be much happier with a charset parameter on image/svg+xml.
With RFC 3023 as it stands, however, it has all the problems that the
TAG finding notes regarding inconsistency of dual metadata; in
consequence it was felt safer to omit the parameter. As RFC 3066
carefully describes a consistent handling of +xml media types where a
charset is omitted, this was not felt to be a problem.
MM> So, why does thie media type omit the charset param? I think that it
MM> makes a lot of sense to do exactly what the W3C TAG finding says.
I think so too. If you could send me the XML source of RFC 3066 bis,
then as co-editor I can add the text that you quoted above.
--
Chris Lilley mailto:chris at w3.org
Chair, W3C SVG Working Group
W3C Graphics Activity Lead
Co-Chair, W3C Hypertext CG
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