Subject: Re: [xsl] Supressing entity expansion during XSLT transform From: David Carlisle <davidc@xxxxxxxxx> Date: Fri, 11 Jan 2008 12:26:45 GMT |
> The improved or "better" identity transformation recreates anything to > the last detail except normalization of attribute values, non > significant whitespace like <x >, and the order of attributes in some > situations. It's a lot more robust (and a lot longer:-) than the eralier one, but still to do a full job you need a full XML parser, The classic way to trap a system that is using regular expressions to do parsing is just to nest things sufficiently deeply... <!DOCTYPE x [ <!ENTITY x "x<![CDATA[g]]>"> <!-- ]]> --> ]> <x/> is well formed, here is the output of an identity pass through an xml parser: $ rxp id.xml <!DOCTYPE x [ <!ENTITY x "x<![CDATA[g]]>"> <!-- ]]> --> ]> <x/> but: $ saxon9 -o id-out.xml id.xml identity-template.xsl produces $ cat id-out.xml <!DOCTYPE x [ <!ENTITY x "x<![CDATA[ g]]>"> <!-- urqpwoehreregfyuio> --> ]?> <x/> which isn't well formed $ rxp id-out.xml Error: Expected > at end of dtd, but got ? in unnamed entity at line 4 char 2 of file:///c:/tmp/id-out.xml ________________________________________________________________________ The Numerical Algorithms Group Ltd is a company registered in England and Wales with company number 1249803. The registered office is: Wilkinson House, Jordan Hill Road, Oxford OX2 8DR, United Kingdom. This e-mail has been scanned for all viruses by Star. The service is powered by MessageLabs. ________________________________________________________________________
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