Newbie Questions about Get, Get_Line

[gressett@iglobal.net]

I am getting back into Ada again after several months of doing other
things. This time I am working on a program that does interactive
terminal IO, and I am finding that the Ada.Text_IO routines I am
working with have some unexpected behavior. (Get, Get_Line,
Get_Immediate) (The compiler is gnat 3.13p on Linux)

What I would really find useful is a routine that could take a string
variable and fill it with terminal input with the following
properties:

If the user input is shorter that the string variable, it will be
padded with blanks.

If the user input is longer than the string variable, the extra
characters should be thrown away, never to be seen again.