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From Elliotte Harold <elh...@metalab.unc.edu>
Subject Re: how do I detect internal subset when part of external subset?
Date Tue, 04 Apr 2006 11:41:36 GMT
The trick is to look for the entity name "[dtd]". XOM accomplishes this 
thusly using pure SAX:

     protected boolean inExternalSubset = false;

     // We have a problem here. Xerces gets this right,
     // but Crimson and possibly other parsers don't properly
     // report these entities, or perhaps just not tag them
     // with [dtd] like they're supposed to.
     public void startEntity(String name) {
       if (name.equals("[dtd]")) inExternalSubset = true;

     public void endEntity(String name) {
       if (name.equals("[dtd]")) inExternalSubset = false;

You can just reverse the logic if you prefer inInternalSubset.

´╗┐Elliotte Rusty Harold  elharo@metalab.unc.edu
XML in a Nutshell 3rd Edition Just Published!

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