Intro to C++

Refactor the program so only users with an email that ends in abtech.edu can register. Use find() or rfind() functions.

#include #include

using namespace std;

int main() { cout << "Create Account ";

// get full name and parse first name string full_name; string first_name; bool valid_name = false; while (!valid_name) { cout << "Enter full name: "; getline(cin, full_name);

// strip whitespace from front int i = full_name.find_first_not_of(" \t"); if (i > -1) { full_name = full_name.substr(i); }

// get first name int space_index = full_name.find(' '); if (space_index == -1) { cout << "You must enter your full name. Please try again. "; } else { first_name = full_name.substr(0, space_index); valid_name = true; } } cout << endl;

// get the password string password; bool valid_password = false; while (!valid_password) {

// set valid flag valid_password = true;

// get password cout << "Enter password: "; getline(cin, password);

// make sure password has at least 8 characters if (password.length() < 8) { cout << "Password must be at least 8 characters. "; valid_password = false; }

// make sure password includes a number int index = password.find_first_of("0123456789"); if (index == -1) { cout << "Password must include a number. "; valid_password = false; }

// make sure password includes a special character bool special_character = false; for (char c : password) { if (ispunct(c)) { special_character = true; break; // exit for loop } } if (!special_character) { cout << "Password must include a special character. "; valid_password = false; }

// display message if password is not valid if (!valid_password) { cout << "Please try again. "; } } cout << endl;

// get the email address string email; bool valid_email = false; while (!valid_email) { // set valid flag valid_email = true;

// get email cout << "Enter email: "; getline(cin, email);

// make sure there is an at sign int at_index = email.find('@'); if (at_index == -1) { cout << "The email must include an at character (@). "; valid_email = false; }

// make sure there is a dot character by getting the last dot operator int dot_index = email.rfind('.'); if (dot_index == -1) { cout << "The email must include a dot character (.). "; valid_email = false; }

// make sure the remaining characters are alphanumeric bool valid_chars = true; for (char c : email) { if (c != '@' && c != '.' && c != '_' && c!= '-' ) { if (!isalnum(c)) { valid_chars = false; break; } } } if (!valid_chars) { cout << "The email contains invalid characters. "; valid_email = false; }

// make sure there is at least one character before the at sign if (at_index == 0) { cout << "The local part of the email must include at least one character. "; valid_email = false; } // make sure there is at least one character before the dot character if (dot_index - at_index == 1) { cout << "The server name of the email must include at least one character. "; valid_email = false; }

// make sure the domain name has two or three characters if (email.length() - dot_index - 1 != 3 && email.length() - dot_index - 1 != 2) { cout << "The domain name of the email must have two or three characters. "; valid_email = false; }

// display message if email is not valid if (!valid_email) { cout << "Please try again. "; } } cout << endl;

// make sure first name uses initial cap char letter = first_name[0]; first_name[0] = toupper(letter); for (int i = 1; i < first_name.length(); ++i) { letter = first_name[i]; first_name[i] = tolower(letter); }

// display welcome message cout << "Hi " << first_name << ", " << "Thanks for creating an account! "; }