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   Re: [xml-dev] XSLT with DOM or SAX ?

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Razvan MIHAIU wrote:

>> Provided that DOM is hugely inefficient for performing XSLT, most XSLT 
>> processors always build their own proprietary optimized tree 
>> representation of an input XML to work with.
>> Given that it's clear that DOM is just a waste of memory here - use 
>> SAX instead.
>    I do not understand. An XSLT processor can require random access to 
> the XML instance. With SAX you would be forced to pass the document 
> multiple times.

Nope, it just builds optimized in-memory XML tree to work with. Just 
take a look at Xalan or Saxon's sources.
This is actually hot spot for various optimizations in XSLT, e.g. see 

>    Are you suggesting to use SAX to build an in-memory representation of 
> XML other than DOM ?

Sure. Unless your source XML is already in DOM, what's the point to use 
DOM if XSLT processor's building its own in-memory representation?

Oleg Tkachenko
Multiconn Technologies, Israel


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