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Re: (more) extensible SAX

  • From: Paul Tchistopolskii <paul@q...>
  • To: David Brownell <david-b@p...>,Eric van der Vlist <vdv@d...>, xml-dev@l...
  • Date: Tue, 05 Dec 2000 20:40:40 -0800

move sax

----- Original Message ----- 
From: David Brownell <david-b@p...>

> Which productions -- the lexical ones, or the grammatical ones?  I count
> two layers there.  (Evidently from its SGML heritage, XML doesn't have
> the cleanest of distinctions between those layers, but it exists.)  The
> SAX API is basically a grammatical layer.

Sorry for side-effect, but why do you, people, call SAX API a 'parser' or 
'grammatical layer' ?

In the existanse of yacc and lex -  I think SAX API is a lexer. 
It returns lexems. Tokens. 

For some unknown reasons this lexer has bult-in macroprocessor.

Where is 'grammatical' layer ? Wait ... Attributes? Right ? 

So the only thing which allows us to call SAX API 'parser' 
is it's ability to pack attributes into array ? Right ?

If I'm right on this, this means that to move SAX API closer 
to 'pure lexer' - attributes should fire Attribute 'event'. For example.

On another hand, SAX API could be moved into other direction. 
'more parserish'.

Then schema comes into to the game. 
We'l have a lot of fun down the road. Desiging the real XML *parser*.


PS. Or I don't understand something and yacc is using wrong 
terminology?  I appreciate a url to the 'correct' terminology.


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