ASN.1t schema languages?
Alessandro Triglia wrote: > ASN.1. The new XML Encoding Rules of ASN.1 are being finalized by the > joint ISO/IEC/ITU-T standards group. Publication is expected within a > few months. > > The language allows the specification of schemas for a wide range of XML > documents. It takes a different view from other schema languages, in > that it is based on the definition of an abstract data structure, whose > "values" are *encoded* in XML. > > One benefit of this model is that the "information content" of an XML > document described by an ASN.1 schema can be immediately encoded in any > of the standard binary Encoding Rules of ASN.1 (such as BER, DER, or > PER) with no effort, as an alternative to XML itself, whenever size is a > concern. Speaking as one who has just invested several very painful solid days trying to pick apart 1.3 million data records transmitted in ASN.1/BER (the one or two publicly available pieces of software that claimed to do BER silently failed to do anything, the information provider's own C program was idiosyncratic, failed to compile out of the box, and ran painfully slow), and then discovered that all the non-ASCII characters are hosed, I hope that this effort bears fruit. At the moment I am about ready to categorically refuse ever to deal with anything that has anything to do with ASN.1. Bah. -Tim
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