}
DocumentPreprocessor processor = new DocumentPreprocessor();
BufferedReader br = new BufferedReader(new FileReader(args[0]));
BufferedWriter bw = new BufferedWriter(new FileWriter(args[1]));
for (String line = null; (line = br.readLine()) != null;) {
String cleaned = processor.process(line);
if (!cleaned.equals("")){
bw.write(cleaned);
bw.newLine();
}
}