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Re: ASN.1 is an XML Schema Language (Fix those lists!)and Binary XMLnot

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• Subject: Re: ASN.1 is an XML Schema Language (Fix those lists!)and Binary XMLnot needed
• From: Pete Kirkham <pete.kirkham@b...>
• Date: Thu, 06 Nov 2003 13:13:06 +0000

Conversely to Len's example of X3D, streaming media players support mechanisms to 
plug in decoders for formats they don't recognise. 

If the encoding was expressed in suitable form, then that could be retrieved and 
compiled instead having a library of native decoders. Such a mechanism would also 
allow any XML encoding of the same data, and shift the encoding of data as 
attribute or element into the encoding rules rather than using [ATTRIBUTE] or list 
inline - in effect making ENCODING-CONTROL XER pluggable but with alias, ordering 
and graph serialisation controls. Kind of like architectural forms but with ASN.1's 
binary formats (and possibly other text formats) thrown in free. 

Since one of the projects I work on has to support legacy text files, random 
formats from other tools, its own XMI data and SOAP messages (which are essentially 
aliases of each other), I can think of one use case for plugging encodings like 
this; but at the moment someone ends up writing the encoder manually, rather it 
being generated off a concrete syntax description.


Pete

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