[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: DTD Question
Samuel R. Blackburn wrote: > > <NAME> > <FIRST>Sam</FIRST> > <LAST>Blackburn</LAST> > </NAME> > <ROUTE> > <FIRST>99.409</FIRST> > <LAST>2091.7785</LAST> > </ROUTE> > > Is it possible in DTD to say that NAME.FIRST is a string > and ROUTE.FIRST is a number? The DTD doesn't represent data typing; that's the job of some component that interprets information encoded in XML. Your overloading of a "flat" namespace makes that hard. You could have chosen other validatable ways to do this: <NAME> <NAME.FIRST>Sam</NAME.FIRST> ...</NAME> <ROUTE> <ROUTE.FIRST>99.409</ROUTE.FIRST> ...</ROUTE> Or with namespaces (the "xmlns:" decarations go best in the DTD, IMHO): <NAME xmlns:NAME=".../name-rules"> <NAME:FIRST>Sam</NAME:FIRST> ... </NAME> <ROUTE xmlns:ROUTE=".../route-rules"> <ROUTE:FIRST>99.409</ROUTE:FIRST> ...</ROUTE> Or even just have the rules that applications must follow implicitly, based on context (and probably making validation hard/impossible over time). I'd use an explicit approach, since context is so easily lost. - Dave xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@i... Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ To (un)subscribe, mailto:majordomo@i... the following message; (un)subscribe xml-dev To subscribe to the digests, mailto:majordomo@i... the following message; subscribe xml-dev-digest List coordinator, Henry Rzepa (mailto:rzepa@i...)
|
PURCHASE STYLUS STUDIO ONLINE TODAY!Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced! Download The World's Best XML IDE!Accelerate XML development with our award-winning XML IDE - Download a free trial today! Subscribe in XML format
|