Re: iterator resolution

[Karl Nelson <kenelson ece ucdavis edu>]

> > 
> > One thing I like about right gravity is that it makes it clearer that
> > this is magic _insert() function behavior, rather than standard
> > iterator behavior.
> 
> I'm definitely in favor of "insert leaves iter after inserted string" -
> after all, inserting a series of strings into a buffer in forward
> order is a common operation, inserting a sequence of strings into
> a buffer in reverse order, a rare operation.

True, but since going back in the buffer is expensive it might 
be better just to leave it there and give an offset which can be
used to move the iterator to the end.  (Other than the expensive
back traversing, I like right as well.)  

--Karl