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RE: Data streams

• To: Frank Richards <frank@t...>, xml-dev@l...
• Subject: RE: Data streams
• From: "Kirkham, Pete (UK)" <pete.kirkham@b...>
• Date: Tue, 07 Dec 2004 15:06:24 +0000
• Thread-index: AcTcaogxNVh50hpSRQmQ/mSsbPxwtgAAW2YA
• Thread-topic: Data streams

>Frank Richards
>If you really care, goto single letter tag names, and even for single digit
>data (how real is that?) you have '<d>1</d>' vs '1,' or 8 to 2, not 50 to 1.

For single digit data <a/> to <j/> would be an even better ratio, and you could run length encode 0,0,1,1,1,1 as <a2/><b4/>  ;)

In a lot of systems that have regular numeric data (eg grid services) then a list of space delimited decimals is used; apart from the envelope this approaches the same size as a CSV as the dataset size grows (though you lose some ease of processing the output with XSLT 1).

How much of the cost of using XML on the desktop is on-access virus scanners? (it's significant in some of our systems, though hard to quantify)

How many virus scanners can pick out something like a malicious script broken up using cdata sections, character literals and entities? If they are doing so, does this significantly increase the overhead of using XML over that induced by size considerations?


Pete

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