RE: XML 1.0 is simple. was: RE: almost four years ago....

["Bullard, Claude L (Len)" <clbullar@ingr.com>]

Not historical but applicable.  I can build with 
XML plus DTDs and never touch an xmlns declaration.  This 
may be a point of view with regards to designing 
a document vs implementing XML.   I include 
DTDs because they are in XML 1.0, not documented 
separately which is the case for namespaces. That 
may be historical but the case is that one can 
do a lot of work without using namespaces.

Logic is never pure.  You have to pick the 
conditions.  Logic is mechanical after that. 
The politic is choosing the choices.

XML Base and XInclude?  Good questions. 
I put them in the same layer with namespaces. 
Where would you put them?

Len 
http://www.mp3.com/LenBullard

Ekam sat.h, Vipraah bahudhaa vadanti.
Daamyata. Datta. Dayadhvam.h


-----Original Message-----
From: Eric van der Vlist [mailto:vdv@dyomedea.com]
Sent: Friday, June 15, 2001 10:37 AM
To: xml-dev@lists.xml.org
Subject: Re: XML 1.0 is simple. was: RE: almost four years ago....


"Bullard, Claude L (Len)" wrote:
> 
> Core - XML 1.0 (well-formed and DTD validation)
> 
> Extensibility options:
> 
> o  Aggregation - XML 1.0 + Namespaces
> 
> o  Modeling - XML 1.0 + Namespaces + XML Schemas
> 
> o  System - XML application languages such as RDDL

It would be nice if the specifications were modular instead of spagheti
structured, but DTDs are macroinstructions + include + modeling...

And I personnaly find namespaces being more "basic" or "core" than the
modeling part of DTDs!

Namespaces are not something that you bring afterward, they are
intrusive and change the syntax and meaning of your documents.

In contrast, you can add or change DTDs without changing your documents
(except maybe the doctype declaration). The modeling part of XML DTDs
appears to be more peripheral than namespaces.

I think that your split is based on historical considerations more than
on pure logic ;=) !

BTW, where do we locate XML Base and XInclude ?

Eric

> Len Bullard
> Intergraph Public Safety
> clbullar@ingr.com
> http://www.mp3.com/LenBullard
> 
> Ekam sat.h, Vipraah bahudhaa vadanti.
> Daamyata. Datta. Dayadhvam.h
> 
-- 
Pour y voir plus clair dans la nebuleuse XML...
                                          http://dyomedea.com/formation/
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Eric van der Vlist       http://xmlfr.org            http://dyomedea.com
http://xsltunit.org      http://4xt.org           http://examplotron.org
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