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To tree, or not to tree ...(was Re: The subsetting has begun)

  • To: XML Dev <xml-dev@l...>
  • Subject: To tree, or not to tree ...(was Re: The subsetting has begun)
  • From: Mike Champion <mc@x...>
  • Date: Sat, 01 Mar 2003 10:59:41 -0500
  • In-reply-to: <3E60D1DD.3080503@d...>
  • References: <E18oxHF-0006pf-00@m...> <3E60D1DD.3080503@d...>
  • User-agent: Opera7.0/Win32 M2 build 2637

To tree
[sorry for the weak joke, but the previous subject line has long since been 
transcended]

On Sat, 01 Mar 2003 15:29:33 +0000, Bill de hÓra <bill@d...> wrote:

> John Cowan wrote:
>
>> 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.
>
> No, I didn't. But I can see the tree from the maps :)

Ooooh, this is getting into deep philosophical territory ... "If a tree 
grows from the SAX forest but there is no one there to see it, is it still 
a 'tree'????"  <grin>

BTW, as much as I agree with the "it's a TREE, dammit" position, I learned 
from watching the DOM WG debate whether HTML in a browsers is "really" a 
tree or "really" lists embedded in lists that it is more or less impossible 
to persuade anyone who strongly believes in the opposite point of view.  
That's why the W3C DOM has both tree-traversal methods and list indexing 
methods; it would be logically complete with one or the other, but to 
choose one or the other would create winners and losers, which is bad 
politics in the standards world. 


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