I'm having trouble with file reading/formatting ...


I am given a file songs.txt which contains data on each line in the following format


songtitle__artistlastname, artistfirstname__7characterIDnum__albumname


for example:


A KISS TO BUILD A DREAM ON___ARMSTRONG, LOUIS___MAG6037___BEST LOVED BALLADS CD+G






In my main file I have:




Code:
 ifstream filename("songs.txt");
Code:
  vector<Song> Info; //vector object info takes in a Song object
  Song input; //object created whose information will be parsed


  while(filename >> input) //calls overloaded >> operator
                           //read while data exists to be read
  {
    Info.push_back(input);//appends the string to the vector
  }
and in my songs.cpp file I have overloaded the >> operator like so:



Code:

istream& operator>> (istream &is, Song &song)
{
  string lastname;
  string firstname;
  getline(is, song.title, '_');
  is.ignore();
  is >> lastname >> ws >> firstname;
  is.ignore();
  is >> song.album;
  song.artist = lastname + firstname;
  return is;
}
and I have also overloaded the << operator like so:



Code:
ostream& operator<< (ostream &os, Song &song)
{
  os << setw(30) << left << song.title << ':'
     << song.artist << ':'
     << setw(20) << left << song.album;
  return os;
}


I want to be able to store the song's title, artist, and album.
Technically I don't need the 7 character ID num but for now I'm just including it as part of the album name.
I just used the ':' so that I know when each variable (title, artist, album) ends


My concern is that I'm not able to store the artist name correctly


For example it turns out like this:
A KISS TO BUILD A DREAM ON:_ARMSTRONG,LOUIS___MAG6037___BEST:LOVED BALLADS CD+G


I want to ignore the dash right after the artists first name so that its not included in song.artist.