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Subject: Re: [docbook] DocBook XSD will be discontinued
Peter Flynn <peter@silmaril.ie> writes: > On 13/08/2022 16:47, Norm Tovey-Walsh wrote: >> JÃrgen Purtz <juergen@purtz.de> writes: >>> On 17.01.17 00:07, Bob Stayton wrote: > [...] >>> Will there be a DTD in 5.2? Are there plans for DTD in 6.x? >> A DTD would, in principle, be possible as well, but even less useful >> as it would be both non-normative and have no (actual) support for >> namespaces. > > As those people using DTDs (eg in publishing) are probably not worried > about normativeness, and even less worried about namespaces, they > would probably be happy with a DTD that just replicates 5.2's or 6.x's > changes to element types, content models, and attributes, where that > is possible, and if it is relevant for what is essentially > paper/pdf/epub. Perhaps. I said â(actual)â with respect to namespaces because I expect youâre right, picking some standard prefixes would probably satisfy most people. But there are now a number of pervasive content model constraints that canât be enforced in DTDs, so validation against the DTD wouldnât mean you had valid documents. >> Years ago, I thought it would be possible to generate XSD and DTD > > It's grown, and become much more powerful than DTDs were ever > envisaged for, and I'm not sure many people still use XSD, do they? Thereâs certainly plenty of use out there; some of the newer features in 1.1 go a long way to making it easier to use. But I still donât think XSD models prose documents very well. And like DTDs canât capture some of the constraints of DocBook. Be seeing you, norm -- Norman Tovey-Walsh <ndw@nwalsh.com> https://nwalsh.com/ > Life is half delicious yogurt, half crap, and your job is to keep the > plastic spoon in the yogurt.--Scott Adams
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