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package org.madore.damlengine;
import java.io.OutputStreamWriter;
import javax.xml.XMLConstants;
import javax.xml.namespace.NamespaceContext;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.DocumentBuilder;
import org.w3c.dom.Document;
// import org.xml.sax.EntityResolver;
import org.apache.xerces.jaxp.DocumentBuilderFactoryImpl;
public final class DamlEngine {
public static final String XML_NS = XMLConstants.XML_NS_URI;
public static final String XHTML_NS = "http://www.w3.org/1999/xhtml";
public static final String DAML_NS = "http://www.madore.org/~david/NS/daml/";
public static final class DamlNSMapping implements NamespaceContext {
// This is used for XPath resolution (_not_ for parsing the document).
public String getNamespaceURI(String prefix) {
if ( prefix == null )
throw new IllegalArgumentException("getNamespaceURI() called with null prefix");
else if ( prefix.equals("") )
return XHTML_NS;
else if ( prefix.equals("d") )
return DAML_NS;
else if ( prefix.equals("xml") )
return XML_NS;
else if ( prefix.equals("xmlns") )
return XMLConstants.XMLNS_ATTRIBUTE_NS_URI;
else
return XMLConstants.NULL_NS_URI;
}
public String getPrefix(String uri) {
throw new UnsupportedOperationException("getPrefix() not implemented");
}
public java.util.Iterator getPrefixes(String uri) {
throw new UnsupportedOperationException("getPrefixes() not implemented");
}
}
private DamlEngine() { // Forbid instantiation
throw new AssertionError("DamlEngine cannot be instantiated");
}
public static class RootTodo extends TodoItem {
public RootTodo(Context ctx) {
super(ctx, null);
}
public void handle() {
TodoItem it
= TodoElement.getTodoElement(ctx.doc.getDocumentElement(),
ctx, this);
this.ownerDeque.registerAtEnd(it);
}
}
public static void processDocument(Document doc) {
TodoDeque todoDeque = new TodoDeque();
Context ctx = new Context(doc);
todoDeque.registerAtEnd(new RootTodo(ctx));
todoDeque.dispatchLoop();
}
public static void main(String[] args)
throws Exception {
final Resolver resolver = new Resolver();
final DocumentBuilderFactory dbf = new DocumentBuilderFactoryImpl();
dbf.setNamespaceAware(true);
dbf.setValidating(false);
final DocumentBuilder db = dbf.newDocumentBuilder();
db.setEntityResolver(resolver);
if ( args.length == 0 ) {
System.err.println("expecting filename as argument");
}
for (String fname : args) {
Document doc = db.parse(fname);
processDocument(doc);
doc.normalizeDocument();
Unparser unparser
= new Unparser(doc, new OutputStreamWriter(System.out,
"UTF-8"),
"html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\"");
unparser.unparse();
}
}
}
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