Mike Brown wrote:
> 
> > I am wondering if someone can tell me how to do something like:
> > <!DOCTYPE apage[
> >     <!ENTITY logoid "0001">
> >     <!ENTITY logo SYSTEM "sections/logo/l_xx_&logoid;.xml">
> > ]>
> >
> > where the first entity defines a "variable" for the next entity.
> 
> XML 1.0 provides "parameter" entities for this purpose.
> 
> <!ENTITY % logoid "0001">
> <!ENTITY logo SYSTEM "sections/logo/l_xx_%logoid;.xml">
> 

I'm afraid that's not true.

As stated earlier, the System Literal is a URI, which may be escaped by
an XML processor.

The spec states explicitly: 

"Note that a SystemLiteral can be parsed without scanning for markup."

See 

http://www.w3.org/TR/1998/REC-xml-19980210#NT-ExternalID

and

http://www.w3.org/TR/1998/REC-xml-19980210#sec-common-syn

Therefor you cannot use a parameter entity in a System Literal.


Regards,

Daniel Hinz


-- 
Daniel Hinz - XML Evangelist and Software Developer
Higher-Order AG
Burchardstrasse 19, D-20095 Hamburg, Germany
fon: 040 / 325587 - 0  fax: 040 / 325587 - 99
mailto:daniel.hinz@xxxxxxxxxxxxxxx http://www.higher-order.de


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