Namespaces and DTDs

len bullard cbullard at
Fri Mar 12 05:19:29 GMT 1999

Bill la Forge wrote:
> From: len bullard <cbullard at>
> >Darn.  Maybe LISP was the right language after all and forty years
> >of computer scientists just didn't "get it".
> Lisp and XML have a few things in common, like being easy to
> determine if they are well formed. Frankly, I think XML will be
> better in the long run because it can be validated against various
> schema.

As much as I resisted it in the early working groups for 
various reasons, I find myself agreeing with the position 
that it is good to have formal definitions for both 
wrll-formed and validated information.  I had worked in 
that mode in the IDE/AS, IADS and GE systems, but the 
notion wasn't formally expressed.  I like ISO 8879 DTDs mainly 
because they are for me, much easier to read and use 
to parse in my head.  As I implement more with relational 
systems and use the tables to store the property sets of 
both schemata, properties of schemata as well as instances, 
I think I have more insight now into why people want 
multiple schema types even without the obvious extensions 
such as inheritance.

nodes is nodes is nodes.


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