RE: [xml-dev] Rick Jelliffe quotable quote on the purpose of schemas

• From: "Michael Kay" <mike@...>
• To: "'Greg Alvord'" <galvord@...>,"'Rick Marshall'" <rjm@...>,<xml-dev@...>
• Date: Tue, 12 Dec 2006 00:34:59 -0000

> Rick Marshall Wrote: This is a long way of saying that I 
> think trying to get one tool to do 2 fundamentally different 
> things is always going to less than optimal.

If I want to restrict colour to be red, blue or green, is it fundamentally
different whether I do that using a grammar or using a predicate-based
language?

Perhaps if I write

colour -> (red | blue | green)

then I don't even know or care about the difference...

Michael Kay
http://www.saxonica.com/