An erratum for xml:lang
Masayasu Ishikawa <[email protected]>
| Newsgroups | gmane.comp.web.smil |
|---|---|
| Organization | W3C - World Wide Web Consortium |
| Message-ID | <[email protected]> |
Hi,
Just in case you haven't noticed: "A.3.1 SMIL 2.0 common datatypes"
of SMIL 2.0 REC defined %LanguageCode.datatype; as follows [1]:
<!ENTITY % LanguageCode.datatype "NMTOKEN">
<!-- a language code, as per [RFC1766] -->
"as per [RFC1766]" is out of date and should mention [RFC3066],
but also, XML 1.0 Second Edition allowed an empty xml:lang value
through an erratum [2] and it is now incorporated into the Third
Edition [3]. NMTOKEN cannot allow an empty string.
So in order to be consistent with the XML spec, the SMIL DTD needs to be
modified to use "CDATA" rather than "NMTOKEN" for %LanguageCode.datatype;.
You might also want to keep an eye on the ongoing revision to RFC 3066 [4].
[1] http://www.w3.org/TR/2001/REC-smil20-20010807/smil-DTD.html#smil-datatypes-1
[2] http://www.w3.org/XML/xml-V10-2e-errata#E41
[3] http://www.w3.org/TR/2004/REC-xml-20040204/#sec-lang-tag
[4] http://www.ietf.org/internet-drafts/draft-phillips-langtags-04.txt
Regards,
--
Masayasu Ishikawa / [email protected]
W3C - World Wide Web Consortium