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   Re: Attributes with Intent (and namespaces)

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  • From: MURATA Makoto <murata@apsdc.ksp.fujixerox.co.jp>
  • To: xml-dev@ic.ac.uk
  • Date: Wed, 01 Jul 1998 13:20:08 +0900

Peter Murray-Rust wrote:
> This is very clear :-). It is exactly this sort of thing that concerns me.
> It's not that it's intrinsically difficult, but:
> 	- a it's easy for someone to overlook when writing an *application*.
> (Remember that - at present - inheritance is implemented by the application.
> 	- *every* application - potentially - has to consider whether
> 'inheritance' applies to it. It may decide it doesn't need to worry, but
> the author of the documents may assume that all applications are
> 'inheritance-aware'. This will certainly not be true.
> 	- the word 'inheritance' is understood differently by different SGML/XML
> experts and therefore may lead to differences in implementation. 

We can implement attribute inheritance by SAX or other event-driven 
API's (e.g., XML in perl).

We only have to introduce one method of the class DocumentHandler. 

	This sets names of inherited attributes.  By default, 
	"xml:lang" and "xml:space" are inherited.

An attributeList (the second argument for startElement) 
now contains attribute-value pairs for inherited 

Does such an API cover your concern?

Of course, this has to become namespace-aware.  That is, the argument 
of setInheritedAttribute should be a pair of URI and local part.

Does this cause troubles to your implementation?  > Paul

Fuji Xerox Information Systems
Tel: +81-44-812-7230   Fax: +81-44-812-7231
E-mail: murata@apsdc.ksp.fujixerox.co.jp

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