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Re: Naive question about binary encodings

email privacy naive question
"Linda Grimaldi" <grimlinda@e...> writes:

> I'm sure this is really naïve of me, but I have to admit that I don't
> understand why binary data cannot be sent within an xml document by
> providing appropriately namespace-controlled attributes that identify an
> element type as binary and specify its length.  For example:
> <foo xml:mytype="binary" xml:binarylength="1776"> 
> or some such thing, followed by 1776 octets of whatever one likes.  It's
> kind of like MIME in some respects- as long as its type and length are
> identified, you can do whatever you like with it.

You can get close to that already, provided you are prepared to hex-
or base64-encode your binary data, which is necessary to guarantee
character decoding safety and XML well-formedness:

<foo xsi:type="xs:base64Binary>

with the appropriate namespace declarations.

  Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
                      Half-time member of W3C Team
     2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44) 131 650-4440
	    Fax: (44) 131 650-4587, e-mail: ht@c...
		     URL: http://www.ltg.ed.ac.uk/~ht/
 [mail really from me _always_ has this .sig -- mail without it is forged spam]


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