Yes, the XML parser will read the DTD - typically from a cache in the
nearest proxy server.

You can avoid this by using a catalog resolver to redirect the reference to
a local copy.

Regards,

Michael Kay
http://www.saxonica.com/
http://twitter.com/michaelhkay 
 

> -----Original Message-----
> From: Ylvisaker, Steve [mailto:steve.j.ylvisaker@xxxxxxxxxxxxx] 
> Sent: 04 December 2009 13:46
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject:  DTD validation with SVG graphics transformations
> 
> I am currently using Saxon to perform transformations of SVG 
> graphics. All of the graphics contain a DOCTYPE reference to 
> the W3C DTD: <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" 
> "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
> 
> A question has come up in our technical review team regarding 
> the impact of this reference. Is the DTD some how 
> internalized in the transformation tools in general and Saxon 
> in particular or should we be establishing a local copy of 
> the DTD with the necessary DNS pointers and such? The trigger 
> for our concern was the following error message coming from a 
> Saxon transformation:
> 
> java.io.IOException: Server returned HTTP response code: 503 for URL:
> http://www.w3.org/Graphics/SVG/1.1/DTD/svg-shape.mod
> 
> Thanks in advance for any insight into what is really 
> happening in the background. Are we reading a DTD and if so, 
> from where?
> 
> Steve
> 
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