Iterator.next

Locate the next token. Returns the token if found, null otherwise. Null indicates an end of stream condition. To sweep a conduit for lines using method next():

auto lines = new Lines!(char) (new File("myfile"));
while (lines.next)
       Cout (lines.get).newline;

Alternatively, we can extract one line from a conduit:

auto line = (new Lines!(char) (new File("myfile"))).next;

The difference between next() and foreach() is that the latter processes all tokens in one go, whereas the former processes in a piecemeal fashion. To wit:

foreach (line; new Lines!(char) (new File("myfile")))
         Cout(line).newline;