public static void main(String[] args) throws IOException {
		if ((args.length != 1) &&
			    ((args.length != 2) || ! args[0].equals("-no-opt"))) {
			System.err.println("Usage: java SFECompiler [-no-opt] <file>");
			System.exit(1);
		}

		String  fileName;
		boolean opt = true;

		if (args.length == 2) {
			fileName     = args[1];
			opt          = false;
		} else {
			fileName = args[0];
		}

		compile(fileName, opt);
	}