Subject: Re: [xsl] xml-stylesheet p.i. and other options (was Re: text/xsl...) From: David Carlisle <davidc@xxxxxxxxx> Date: Sun, 23 Jun 2002 22:16:24 +0100 |
> I'm just saying that what we typically use XSLT for makes certain > application design patterns and abstractions more sensible than others, and > <?xml-stylesheet?> tends to be one of the less sensible solutions. It seems to me that the xml-stylesheet pi embodies the main use case for which XML was developed. XML is a _document_ format without implicit presentation semantics (so unlike HTML for example) as such you need to need a link between the document and some presentation rules. One may argue whether a PI with "pseudo atributes" was the best possible syntax choice but that's a minor point. The fact of having a vendor-neutral link from the document is the important point. Without such a thing then one can not hope to serve XML files over the web, and XML was _designed_ to be SGML-light for exactly this purpose. It may be that current hype of XML usage is towards data transmision formats (where the PI is irrelevant rather than harmful) but I believe the original use case that lead to the development of XML is still relevant. So, server side transformations, while sometimes useful, especially for serving to legacy HTML browsers, are not really the point, and microsoft (or any other system) specific scripting is totally out of the question in an open document format. So at the present time I see no alternative to the PI, and any alternatives that I can imagine would differ in syntax rather than functionality. The link doesn't have to be in the file explictly but it does have to be in the URI of the document. If you could standardise on a URI scheme that allowed specification of both document and stylesheet that would be an alternative, but there currently is no such scheme (as far as I'm aware). David _____________________________________________________________________ This message has been checked for all known viruses by Star Internet delivered through the MessageLabs Virus Scanning Service. For further information visit http://www.star.net.uk/stats.asp or alternatively call Star Internet for details on the Virus Scanning Service. XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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