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Re: [xml-dev] Canonicalization software

From: Robin LaFontaine <robin@--------.--->
To: Elliotte Rusty Harold <elharo@-------.---.--->
Date: 2/2/2004 2:46:00 PM
At 8:55 am -0500 2/2/04, Elliotte Rusty Harold wrote:
>After I've canonicalized, a straight text diff or binary compare can 
>find any differences. No fancy infoset comparisons are necessary. My 
>plan, if I can find a reliable tool, is just to generate some 
>canonicalized output from various input, then compare that output to 
>the output of my own canonicalizer to see if it's working correctly 
>or not. Given the current state of these tools and the lack of a 
>normative test suite I wouldn't be surprised if some of the 
>differences I turn up are bugs in the independent canonicalizer, so 
>I'll have to check each difference manually against the spec. 
>However, I should eventually be able to generate a reasonable test 
>suite for canonical XML by comparing enough independent 
>implementations and using the spec to figure out whose right when 
>they disagree.

That makes sense, and is nice and simple. I had imagined these tools 
were more advanced! I guess this means not many people are using 
canonicalizers commercially.

Robin

>--
>
>   Elliotte Rusty Harold
>   elharo@m...
>   Effective XML (Addison-Wesley, 2003)
>   http://www.cafeconleche.org/books/effectivexml           
>   http://www.amazon.com/exec/obidos/ISBN%3D0321150406/ref%3Dnosim/cafeaulaitA
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-- 
-- ---------------------------------------------------
Robin La Fontaine,
DeltaXML: "Change control for XML, in XML"
Email: robin@d...      http://www.deltaxml.com


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