• To: Bill de hÓra <bill@d...>
• Subject: Re: The subsetting has begun
• From: John Cowan <cowan@m...>
• Date: Fri, 28 Feb 2003 22:03:05 -0500 (EST)
• Cc: John Cowan <jcowan@r...>, Sean McGrath <sean.mcgrath@p...>, xml-dev@l...
• In-reply-to: <3E5FE56C.30502@d...> from Bill de hÓraat "Feb 28, 2003 10:40:44 pm"

Bill de hÓra scripsit:

> > What for?  A typical SAX parser has a map, or map of maps, representing
> > its static knowledge of the document based on its DTD.  Its model of the
> > instance is a stack.  There is no tree anywhere (Hagbard Celine).
> 
> Yes there is. A map of maps is can be used to implement a tree 
> structure:

Sure.  But I was talking about the DTD, which (at minimum) requires you
to keep around default attributes of elements.

> saying its model of the instance is a stack isn't the same as saying 
> it's not a tree. Stacks and maps in this case are simply 
> implementation details

You claimed that a parser *has* to model the XML instance as a tree.
DOM-type parsers do, but SAX-type parsers just don't.

-- 
John Cowan           http://www.ccil.org/~cowan              cowan@c...
To say that Bilbo's breath was taken away is no description at all.  There
are no words left to express his staggerment, since Men changed the language
that they learned of elves in the days when all the world was wonderful.
        --_The Hobbit_

• References:
  • Re: The subsetting has begun
    • From: Bill de hÓra <bill@d...>

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