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   Re: [xml-dev] Seeking Examples of XSLT Memory Stress

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On Wed, Aug 17, 2005 at 11:44:30AM -0400, Robert Koberg wrote:
> Michael Kay wrote:
>> Saxon already has an extension, saxon:discard-document(), designed to
>> achieve that.
> I did not know that and it is good to know. I disable extensions (and 
> don't really investigate them) as I run some untrusted XSLs in my CMS 
> webapp.
Watch that an XSLT transform can read (or try to read) any
file on your system and can open arbitrary http (and often ftp)
connections on arbitrary ports.

> Any chance of this type of thing getting into the spec?

If the document falls out of scope then both XSLT 1 and 2 allow
an implementation to discard it.  I don't think we'll see a
procedural way to discard a document otherwise, except as
part of something like the XQuery update facility perhaps.


Liam Quin, W3C XML Activity Lead, http://www.w3.org/People/Quin/


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