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DTDs Only Smell Funny

DTD syntax is not difficult. DTDs do a lot of things well. I never get confused reading them until someone mixes too many document types into the same definition.

But XSDs have pattern facets and those are quite useful particularly in systems that use structured identifiers (eg, S1000D data module codes). Prior to 4.0, DTDs were used and errors in the DMCs had to be tracked and beaten manually. With pattern facets, that became the validtor's responsibility and life in a batch trust but verify identifier system is much better.

It would be even better if the xs:include implementations actually implemented the XPath locators so I wouldn't have to use the FOSI to trick the rendering engine into skipping over identificationAndStatus sections.

Local Vs Global - ID/IDREF aside because one man's globe is another man's locale: using the web as a platform for distributed document production is like stacking all the ammo in one location in the compound as a means to test the enemy's aim.


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