[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RE: patterns and restrictions
On Wed, 2003-12-17 at 20:16, Michael Kay wrote: > Using patterns to constrain values other than strings is questionable > though. Constraining an input document to contain a number such as > "23.50" rather than "23.5" puts an unnecessary burden on anyone > generating these documents, especially if they are using XSLT or XQuery > to do it. It's the value that matters, not its representation. In most cases, that's very true. OTH, it can be very useful in some cases, though. For instance, to constrain dates to either contain or omit timezones, to split durations into two categories in which they are fully ordered, to impose that QNames have prefixes, .... Eric -- Read me on Advogato. http://advogato.org/person/vdv/ Upcoming XML schema languages tutorial: - Santa Clara -half day- (15/03/2004) http://masl.to/?J24916E96 ------------------------------------------------------------------------ Eric van der Vlist http://xmlfr.org http://dyomedea.com (W3C) XML Schema ISBN:0-596-00252-1 http://oreilly.com/catalog/xmlschema ------------------------------------------------------------------------
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