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"Bullard, Claude L (Len)" <clbullar@i...> writes: > Cowan's RNG post makes me think, what if the AF concept > were layered above the RNG? A clean separation > of validation and semantics seems to be what everyone > wants, but not one or the other exclusively. AFs are > expressed as PIs. Are they irrevocably yoked to DTDs > semantically? They appear to be looking over this example. > > <?xml version="1.0"?> > <?IS10744 arch > name="somearch" > public-id="+//IDN me.com//NOTATION Some Architecture//EN" > dtd-public-id="+//IDN me.com//DTD Some Architecture//EN" > doc-elem-form="somedoc" > renamer-att="somedocnames" > options="option1 option2" > ?> > <mydoc somearch="somedoc"/> > > Steve, are they? Would archforms work with RNG? Exactly what I'm wondering, Len. I think so, but I'm not comfortable enough with RNG yet to commit myself on this question. I like RNG a whole lot, though. And, the idea of making a clean separation (or, rather, a single point of contact) between semantic and syntactic validation is very consistent with the goal of modularity -- the same goal that is at the heart of the architectural forms paradigm. Over the last few years, I've talked about AFs with Makoto Murata from time to time, so I know he's well aware of the issues. As for James Clark, he practically wrote the book on architectural forms, although he professes no great love for them now. So I have high hopes that the requirements that I keep bringing up, year after year, will someday be addressed by people who are competent to address them. I think it would be higher on their agenda if more people indicated to them that these are serious requirements with serious economic consequences. Right now, it's still unusual for someone to bring up the possibility that a single document could be useful in multiple processing contexts. (And when someone does this, typically someone else says, "You mean CONCUR?", whereupon everyone present makes a rude noise. The CONCUR feature of SGML was an earlier attempt to address some of the same requirements.) -- Steve Steven R. Newcomb, Consultant srn@c... voice: +1 972 359 8160 fax: +1 972 359 0270 1527 Northaven Drive Allen, Texas 75002-1648 USA
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