Re: ASN.1 and XML
[Al Snell] > 1) It's currently mandatory in ASN.1 that types have names starting with a > capital letter, and values with a small letter. sually, value names map to > XML element names - the things compromising an Address-typed element are > called street city, and postcode so the elements are named after that, > not "String". This is fine when you're encoding something with ASN.1 roots > in XML, but how does that cope with an existing XML schema using capital > letters on things that you convert to ASN.1? The case-of-first-letter > thing will probably be dropped from "requirement" to "stylistic > recommendation". > Yes, the case/naming can be a little iffy for automated processing. Those lower-case slots are really type labels too, as I understand it, aren't they? They will be assigned values in an instance but they are types in the schema. The difference is that they are locally-defined type labels whose scope is limited, and they are used to define the type of a slot, not to name an entire type definition. BTW, Al, maybe you're the one to answer this, I've been wondering about it. In view of the mandatory upper/lower case naming requirements, how can someone create ASN.1 labels in a language that does not make that distinction? Or are you simply not allowed to name types using such characters at all (which isn't so good for internationalization, I would thnk)? Cheers, Tom P
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