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[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: WD for Namespaces 1.1
 Marcus Carr wrote: > A v1.1 parser will need to have inbuilt namespace support and since DTDs > and namespaces don't play, it's reasonable to assume that some v1.1 parsers > won't bother to support DTDs. Why would they? Why would v1.1 mandate that they > should? DTDs would be dead in the water once v1.1 came in, and a lot of > currently functioning systems would have to be frozen at v1.0. I agree with the assessment that this is bogus. DTDs are in 1.1 and if a parser doesn't support them, it isn't an XML 1.1 parser. I think this does raise a legitimate problem though, and that is that moving namespaces into 1.1 formalizes the problems between DTDs and namespaces. One solution is to continue to live with the problem. A better solution is to allow namespace "declarations" in DTDs via the mechanism proposed recently by Rick Jelliffe [1] and implemented a years ago by Microsoft. The good news is that this solution is already known to work. The bad news is that it would cause backwards-incompatibility problems -- documents that are both valid and namespace valid would cease to be valid due to a lack of xmlns attribute defaults in the DTD. -- Ron [1] http://lists.xml.org/archives/xml-dev/200201/msg02012.html 
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