Cannot retrieve the state of the terminal

[GoogleCodeExporter]

I would expect for an object whose state is a buffer of characters, to be able 
to retrieve this state, instead of forcing the client to have her/his own copy 
of the same data.

So for example, I would allow the client to retrive the character content 
between two character positions.

Original issue reported on code.google.com by carlo.ma...@gmail.com on 4 May 2015 at 12:44