Subject: RE: [xsl] When are <!DOCTYPE> and svg namespace references material? From: "Ylvisaker, Steve" <steve.j.ylvisaker@xxxxxxxxxxxxx> Date: Wed, 3 Feb 2010 12:37:15 -0600 |
Martin - thanks. I guess, based on your answers, the question would be with regard to my XSLT transformations using Saxon. We perform transformations to do language localization on labels in our SVG graphics. Apparently it is this process that is in question - and perhaps of interest to the list. I use Saxon for my transformations but we are not asking it to validate against the DTD, however, I'm wondering if it is trying because of the <!DOCTYPE> declaration. If I remove the <!DOCTYPE> declaration or point it to an invalid URL Saxon doesn't seem to mind. What I don't know is if the parser is "trying" to find the DTD, failing and then driving on. Perhaps my question is Saxon specific and I should post to the Saxon list. Thanks for the info - Steve -----Original Message----- From: Martin Honnen [mailto:Martin.Honnen@xxxxxx] Sent: Wednesday, February 03, 2010 12:05 PM To: Ylvisaker, Steve Subject: Re: [xsl] When are <!DOCTYPE> and svg namespace references material? Note that your question does not relate to XSLT so I reply off list. Ylvisaker, Steve wrote: > There is a concern that our SVG graphics implementation may be introducing external reference dependencies outside our local network. An example graphic is: > > <?xml version="1.0" encoding="utf-8"?> <!DOCTYPE svg PUBLIC > "-//W3C//DTD SVG 1.1//EN" > "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"> > <svg version="1.1" xmlns="http://www.w3.org/2000/svg" > xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" > width="357.553px" height="216.893px" viewBox="0 0 357.553 216.893" > enable-background="new 0 0 357.553 216.893" xml:space="preserve"> > > Our graphics are, for the most part, generated by Adobe Illustrator > CS3 but we are running xslt transformations against them with Saxon > and viewing the graphics with a variety of tools: Firefox, InkScape, > Ai CS3, Antenna House formatter and Saxon-PE 9.2.0.2 > > I have isolated my work station (no corporate network or internet) and all of these applications work fine. But I don't know if they are trying to make an external reference, failing and driving on, or if the <!DOCTYPE> and W3 name space references are little more than documentation. Three of the applications, Firefox, InkScape and Adobe CS3 care about the name of the xmlns URL. Something other than www.w3.org trips them up. Antenna House and Saxon don't seem to care. With the <!DOCTYPE> declaration I can reference www.w3.org as above, or reference an internal network URL or drop the declaration all together and none of the applications perform differently. All of this is, of course, anecdotal data at best. It would be great to know for sure what is going on. > > My question: Is there ever an attempt to make an external reference to www.w3.org from either the <!DOCTYPE> declaration or the xmlns reference? An XML parser could try to read the DTD referenced in the DOCTYPE, in particular if it wants to validate the XML document. As for the namespaces like xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" no, these do not result in any network access but they matter to any tool you want to render the SVG with as the renderer knows how to render e.g. a 'circle' element in the SVG namespace 'http://www.w3.org/2000/svg' but does not know how to render a 'circle' element in no namespace or a different namespace. -- Martin Honnen http://msmvps.com/blogs/martin_honnen/ [CONFIDENTIALITY AND PRIVACY NOTICE] Information transmitted by this email is proprietary to Medtronic and is intended for use only by the individual or entity to which it is addressed, and may contain information that is private, privileged, confidential or exempt from disclosure under applicable law. If you are not the intended recipient or it appears that this mail has been forwarded to you without proper authority, you are notified that any use or dissemination of this information in any manner is strictly prohibited. In such cases, please delete this mail from your records. To view this notice in other languages you can either select the following link or manually copy and paste the link into the address bar of a web browser: http://emaildisclaimer.medtronic.com
Current Thread |
---|
|
<- Previous | Index | Next -> |
---|---|---|
[xsl] When are <!DOCTYPE> and svg n, Ylvisaker, Steve | Thread | Re: [xsl] When are <!DOCTYPE> and s, C. M. Sperberg-McQue |
Re: [xsl] are all strings in a sequ, Dimitre Novatchev | Date | Re: [xsl] When are <!DOCTYPE> and s, C. M. Sperberg-McQue |
Month |