[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Re: determining ID-ness in XML
At 2:54 PM +0000 10/31/01, Rob Lugt wrote: >So, adding a new xmlid attribute has downsides either way:- you either need >to update your DTDs or you need to update your xml processors. This is true >even for those people and applications that have no interest in being able >to address ID-less elements. > Any time you add a new attribute, you have to update your DTDs. This is true of xml:id, xml:base, xml:space, and xml:lang. Nothing in this discussion changes that. Nothing is special about xml:id. However, we are not saying that every application has to use xml:id. Certainly not every application uses xml:space or xml:lang today, much less xml:base. If the XHTML folks don't want xml:id in their XHTML documents, they don't have to use it. They don't change their DTDs. In fact, they really don't need to change them because conformant XHTML documents already have a DTD, and do have ID type attributes. Remember, the reason we're having this discussion is because not all XML documents have DTDs. It is precisely those without DTDs where xml:id is needed, and these applications can start using xml:id immediately because they don't have a DTD to change! or even if they do, they don't require validity. -- +-----------------------+------------------------+-------------------+ | Elliotte Rusty Harold | elharo@m... | Writer/Programmer | +-----------------------+------------------------+-------------------+ | The XML Bible, 2nd Edition (Hungry Minds, 2001) | | http://www.ibiblio.org/xml/books/bible2/ | | http://www.amazon.com/exec/obidos/ISBN=0764547607/cafeaulaitA/ | +----------------------------------+---------------------------------+ | Read Cafe au Lait for Java News: http://www.cafeaulait.org/ | | Read Cafe con Leche for XML News: http://www.ibiblio.org/xml/ | +----------------------------------+---------------------------------+
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