[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: XML spec and XSD
Mukul Gandhi wrote: > My point was, that XSD and DTD (and also XML) are "W3C" specs. RelaxNG > is an OASIS specification. I haven't seen W3C specs, recommendating > users to use OASIS specs, *and* mentioning these statements in W3C > specs themselves. Or do we have any instances of W3C specs, where W3C > recommends users to use certain OASIS specs. This more so doesn't > happen if W3C and OASIS develop competing languages. But I don't see > XSD and RelaxNG as competing to each other. > > W3C SVG for example uses RELAX NG not XSD. http://www.w3.org/TR/SVGTiny12/ > My simple point was, that XML spec mentions DTD as a validation > technology but it doesn't mention today XSD it's spec. And XSD is > another validation technology from W3C, which is vastly better than > DTD and is a pretty stable language now. > Pretty stable? How many full implementations are there of XSD 1.1 today (apart from Michael's?) Microsoft isn't supporting it AFAIK. Libxml's front page says it only has a partial implementation of XSD 1.0. And Mukul's Xerces release won't be out until December, will it, hence the spruiking I guess? >> Just like picking a programming language you >> are free to pick the validation method you want to use. >> > > I agree. But my point as I have been saying in this thread, was that > XML mentions DTD, but it doesn't mention XSD. This gives a naive user > a feeling, that DTD is something which is integral to XML, while XSD > is not. I believe, this should be corrected in XML spec. > Err...the naive user is correct. The entity mechanism is integrated in XML, it is not a severable layer. Entities are declared with the DTD mechanism; XSD provides no alternative to this. Cheers Rick Jelliffe
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