@Override
public RsObject process(RsPlan plan, String objectName) throws RsParsingException {

      boolean level = false;
      RsToken token;

      System.out.println("Processing unimplemented statement "+keyword);

      while(true){
          token=reader.nextToken();
          if(token.endOfFile())
               throw token.gripe("Encountered end-of-file before statement termination");

          if(token.getType()==RsToken.TT_CHARACTER){
              char c=token.getChar();
              if(c=='{'){
                 if(level)
                    throw token.gripe("Nesting of statements not supported");
                 level=true;
              }else if(c==';'){
                 if(!level)
                     break;   // completion of statement
              }else if(c=='}'){
                  if(!level)
                     throw token.gripe("Closing brace out of place");
                   break;
              }
         }
      }

      return null;
   }