Re: [xsl] Retriving a value of default attribute from schema(.xsd)

[Wendell Piez <wapiez at mulberrytech dot com>]

At 05:06 AM 10/12/01, Jeni wrote:
>As far as I know, there are no XSLT processors that will access and
>use the PSVI in the same way that they access and use the
>post-DTD-validation infoset. You'll see the PSVI being used in XSLT
>2.0, but for now if you want to set a default for an attribute you
>should use a DTD.

Or it's quite commonly possible to write the XSLT to provide its own 
default. (Only reason I can think of not to is a 
multiple-DTD/single-stylesheet architecture, which would be far less 
ordinary than the other way around.) This also has the advantage of 
loosening the document-DTD/schema coupling for processing (often a good thing).

As I understand it, the notion that a stylesheet or other process will 
provide its own defaults, is underneath the otherwise mystifying name of 
the #IMPLIED keyword in SGML/XML DTDs. That is, the attribute is optional 
in the instance, so its value may be taken as "implied" (because the 
processor will know what it should be, or doesn't care).

Cheers,
Wendell



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Wendell Piez                            mailto:wapiez@mulberrytech.com
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