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On Mon, 2002-05-13 at 15:00, Jonathan Robie wrote: > >Or you can use tools like Regular Fragmentations to break the lexical > >parts down into markup-identifiable and unambiguous day/month/year > >elements. > > Or you could use a regular expression to do the same thing, and associate > the type with a name that identifies the regular expression to be used. And > allow other constraints, such as ranges, to be associated with the name. That's pretty much precisely what Regular Fragmentations does, actually, though it leaves constraints for a later stage in the pipeline. > Ooops, I just reinvented XML Schema simple types. Except that XML Schema doesn't let you do anything with the results of the regular expression except binary "yes it is/no it ain't". With RegFrag, it's easy to say "this part is a XYZ and that part is a CBA." I'm just pointing out that typing isn't the only option for markup processing by far, and it may in fact be a very poor approach. -- Simon St.Laurent Ring around the content, a pocket full of brackets Errors, errors, all fall down! http://simonstl.com
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