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Re: [xml-dev] Re: determining ID-ness in XML

At 9:40 AM +0000 11/8/01, David Carlisle wrote:

>xml:space maybe a better example, that can't be normalised and it is (or
>should be according to xml) added to every dtd.

Actually no. It is not added to every DTD. It is added to DTDs for 
those applications that want xml:space. Many XML applications do not 
see a need for xml:space and happily leave it out. Valid documents 
written in these xml:space ignorant applications cannot use 
xml:space. Secction 2.10 of the XML spec states, "A special attribute 
named xml:space may be attached to an element to signal an intention 
that in that element, white space should be preserved by 
applications." Note *may* be attached, not "must be attached" or even 
"should be attached".

xml:id would be exactly the same. Use it if you want. Ignore it if you don't.

| Elliotte Rusty Harold | elharo@metalab.unc.edu | Writer/Programmer |
|          The XML Bible, 2nd Edition (Hungry Minds, 2001)           |
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