Re: Dia & Schemas/DTDs

[Lars Clausen <lrclause cs uiuc edu>]

On Wed, 6 Nov 2002, Durk Strooisma wrote:
> Hi,
> 
> We noticed that Dia doens't make use of DTDs or XML Schemas (for example
> to validate Dia XML documents). Even correct DTDs or XML Schemas aren't
> provided, which would be handy to validate Dia XML documents within XML
> authoring tools.
> 
> Probably there's a good reason doing it the way the Dia-people do right
> now.  Performance? Complexity?
> 
> For us it would be very pleasent if Dia uses DTDs or Schemas for
> extending the program's functionality. Of course extending a DTD or
> Schema needs to be supported in the program itself too. But when
> implemented, functionality can be extending without modifying source
> code.  Example: it would be very nice to be able to add more attributes
> to shapes.  The existing shape attributes (like "name" and "textbox")
> don't offer the ability to create shapes for network diagrams like
> "computer" with attributes like IP and MAC-address.
> 
> Maybe that's a good idea to consider...

I don't know enough about DTDs and XML Schemas to judge whether this is a
useful thing.  We do have DTDs, but they're not used by Dia.

--Lars

-- 
Lars Clausen (http://shasta.cs.uiuc.edu/~lrclause)| Hårdgrim of Numenor
"I do not agree with a word that you say, but I   |----------------------------
will defend to the death your right to say it."   | Where are we going, and
    --Evelyn Beatrice Hall paraphrasing Voltaire  | what's with the handbasket?