Can iterators not be variables?

[Yardanico]

Default Nim iterators are always inlined, so they're not first-class. What you 
want are closure iterators, they are first-class and can be passed around. For 
example:
    
    
    iterator myitems(x: string): char {.closure.} =
      for elem in x:
        yield x
    
    var input = "ABCDEFGABF".myitems
    for c in input:
      echo c
    
    
    Run