cppString.cpp

/*****************************************************************************
Template prepared by K. Slott
11-22-2017

This program will read email addresses from email.dat and extract the username and department for each person.

email.dat  (userName.dep@csusm.edu) 
-------------
kslott.cs@csusm.edu
wu.cs@csusm.edu
puha.math@csusm.edu
price.phy@csusm.edu
harrison.eng@csusm.edu
******************************************************************************/
//James Bertel
#include <iostream>
#include <fstream>
using namespace std;

int main()
{
  string email;
  ifstream fin;

  int pos;

  fin.open("email.dat");

  if(!fin)
    cout << "The input file doesn't exist" << endl;
  else //the input file exists
    {
      fin >> email;

      while(fin)
	{
	  //extract the username and department and cout them.
	  pos = email.find(".");
	  pos++;

	  cout << email.substr(0, email.find(".")) << " at ";
	  cout << email.substr(pos, (email.find("@") - pos)) << endl;

	  fin >> email;
	}

      fin.close();
    }

  return 0;
}