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   Multiple(?) / Reuse of Parsers

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  • From: Leigh Dodds <ldodds@ingenta.com>
  • To: xml-dev <xml-dev@ic.ac.uk>
  • Date: Fri, 14 May 1999 11:23:49 +0100


I'm currently working with an application that uses both 
DOM and SAX for parsing XML. The application creates 
a DOM representation of a document, and then uses the SAX api to 
parse a second document using the event driven interface.

Currently I'm creating two parsers. One for the DOM 
representation, and one for the SAX parsing (SAXParser and DOMParser 
classes in XML4J). 

The latest version of this parser allows multiple parsers 
to be created (just downloading, so haven't tested it yet), 
but am I right in thinking that this isn't generally true for other 

Also, *should* I create a second parser when parsing the second 
document (through SAX), or can I reuse the first parser once 
the DOM representation has been created? I'm concerned there 
may be some 'gotchas'. I'm going to be reading the DOM representation 
based on the events from the SAX style parse.

The 2.0.6. version of XML4J gives me a "InputSource stack out-of-sync" 
message at the moment - which I think may be because I'm 
creating two parsers which it doesn't support - hence the download 
of 2.0.9. which I'm about to try.

Any thoughts, suggestions?



    "Never Do With More, What Can Be Achieved With Less"
				---William of Occam
Leigh Dodds                             Eml:  ldodds@ingenta.com
ingenta ltd                             Tel:  +44 1225 826619
BUCS Building, University of Bath       Fax:  +44 1225 826283

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