Re: [xsl] Multiple attributes present and non-present

[Wendell Piez <wapiez@xxxxxxxxxxxxxxxx>]

Peter,

At 04:23 PM 3/4/2002, you wrote:
> On Monday 04 March 2002 12:03, Wendell Piez wrote:
> > Attributes which have a default in the DTD will still be copied.
> > Unfortunately, the XSLT data model does not preserve information about
> > whether an attribute value was provided by default.
>
> Also keep in mind that if an attribute has a default value in the DTD and the
> document explicitly reset the value to "", then removing empty attributes
> will cause the value to revert back to the DTD's default value.  If your DTD
> does not use any non-empty default values, then this should be OK, if not,
> then this might end up destroying information.
>
> For example, if the default value for @foo is "bar", but the document has
> <PERSNAME foo="">, then @foo would be reset to "bar".  Maybe or not this is
> what you want.

Is this so? I'd have thought that foo="" would fail to be copied, since it 
fails to match the select="@*[string(.)]" expression. This irrespective of 
the fact that it was defaulted in the DTD. (And losing the information that 
its value is null, as you say.)

Now, parse the resulting document with the same DTD, and the default will 
reappear.... I guess this is what you meant?

Cheers,
Wendell


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Wendell Piez                            mailto:wapiez@xxxxxxxxxxxxxxxx
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