Re: Re: determining ID-ness in XML
Elliotte Rusty Harold wrote: > I issue a new request for a standard xml:target attribute. This would > provide a unique name for XPointers to link to. It would have no > necessary type. It would have no affect on validity. The documents in > which it appears may or may not have DTDs, may or may not be valid, > and may or may not declare this attribute with any particular type. Leaving aside the mechanism, this free and easy approach seems very desirable. If I understand correctly, it just provides a means of saying "within the scope of this document, you can point at any node with an attribute in this list:..." > Whether such a document was valid would be determined exactly > according to the rules of XML 1.0. If xml:target (and everything else > in the document) were properly declared the document would be valid. > If xml:target were not properly declared, the document would not be > valid. In the DTD, you'd need to define xml:target to cover pretty much every CDATA attribute then, wouldn't you? Without knowing the context that the instance will be used in, how can you determine whether a particular attribute might be useful as a unique identifier? The instance should scope what is a unique identifier - why get the DTD involved at all? > No parsers would change. The definition of validity would not > change. The only necessary change would be to XPointer and other > client specifications that needed to pay attention to this attribute. > Everybody else can ignore it. And everyone who may need to validate downstream from the instance being regarded as well-formed only will need to change their DTDs or strip out the invalid attributes? It sounds like a pretty hard sell to me... -- Regards, Marcus Carr email: mrc@a... ___________________________________________________________________ Allette Systems (Australia) www: http://www.allette.com.au ___________________________________________________________________ "Everything should be made as simple as possible, but not simpler." - Einstein
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