public String found() {
		switch (ttype) {
		case TT_WORD:
			return sval;
		case TT_NUMBER:
			return  Double.toString(nval);
		case TT_EOL:
			return  "end-of-line";
		case TT_EOF:
			return  "end-of-file";
		default:
			return  (new Character((char) ttype)).toString();
		}
	}