/** Provides a command line interface to the lexer */
public static void main(String[] args) throws IOException {
// check for legal argument list
Lexer in;
if (args.length == 0) {
in = new Lexer();
} else in = new Lexer(args[0]);
do {
Token t = in.readToken();
if (t == null) break;
System.out.println("Token " + t + " in " + t.getClass());
} while (true);
}
