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> I need a DTD parser to parse the element in the DTD and match with the DAML > (ontology file). According to your expertise experience, will SAX.NET help > me in this issue? Thanks for your reply. Yes and no. What SAX will give you is a standard way to list all of the declarations in a DTD without having to write your parser-- which is tough. It will also expand all of the parameter entities for you. Ultimately though, you will still have a lot of work to do with SAX. You will probably have to do something like : (1) Set up a DeclHandler on the SAX XMLReader. (2) Record all of the items from ElementDecl, AttributeDecl, etc. events into a Hashtable or Dictionary. (3) As you encounter a DAML element match it using a lookup in the Hashtable or Dictionary. In this respect, you are not saving much over using the DOM-- and still have at least some amount of work to do. However, in SAX you do have more options for providing your own DTD for a specific file (e.g., getExternalSubset, InputSource) All the best, Jeff
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