I am working with a collection of XML documents that I need to parse in order to index them in Lucene. There is a DTD file that describes the structure of these documents, but when I started working with it I found out that it was an SGML DTD file. I found some advice on the internet about how to convert an SGML DTD file so that it complies with XML DTD standards, and I made changes to enable the DTD file to be used by an XML parser. There was one !ENTITY declaration that I didn't know what to do with. It looks like this:
<!ENTITY #DEFAULT SYSTEM > Things seem to work ok if I just comment this out, but I wonder what it is for, and whether there is a way to make it acceptable to an XML parser in such a way that it does what the original author meant for it to do. Apparently the XML parser doesn't like the # at the start of #DEFAULT. Thanks. Mike O'Leary
