I want to write a module such that I can do this with a certain file:

use MyModule;

my $reader = MyModule->new();

### MyModule opens a file behind the scenes

while(my $line = $reader->get_next_line()){
    print "here's the next line: $line\n";
}

### stop when we get to the end of the file, obviously
[download]

That is, keep the file handle open in the module and each time I call get_next_line() get one more line.

Clearly I can't keep re-opening the file every time. Do I use a module like Tie::File?

Thanks in advance.