[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: DTDs, W3C Schemas, RELAX NG, Schematron?
["Bullard, Claude L (Len)"] >> Please elaborate on how RELAX is more powerful than XSD. >John Cowan >1) RNG allows nondeterministic content models. A content >model like ((X+,A*,Y+,A*) | (X+, A*) | (Y+, A*) | empty) need >not be painstakingly rewritten as ((X+,A*,(Y+,A*)?) | (Y+,A*)?). >... [ detailed and excellent exposition elided] Also, I would add: - RNG makes easy things easy whilst making hard things possible - without expensive or vendor-specific tools. - The only tool you need to wield it is a text editor. - It is possible to pick up an RNG schema and JUST READ IT to understand it. regards, Sean
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