/**
* Interprets the command-line argument as a regular expression
* (supporting closure, binary or, parentheses, and wildcard)
* reads in lines from standard input; writes to standard output
* those lines that contain a substring matching the regular
* expression.
*
* @param args the command-line arguments
*/
public static void main(String[] args) {
String regexp = "(.*" + args[0] + ".*)";
NFA nfa = new NFA(regexp);
while (StdIn.hasNextLine()) {
String line = StdIn.readLine();
if (nfa.recognizes(line)) {
StdOut.println(line);
}
}
}
/**
* Unit tests the {@code NFA} data type.
*
* @param args the command-line arguments
*/
public static void main(String[] args) {
String regexp = "(" + args[0] + ")";
String txt = args[1];
NFA nfa = new NFA(regexp);
StdOut.println(nfa.recognizes(txt));
}