setupTerm : IO ()getTermCols : IO IntGet the number of columns in the terminal associated
with stdout. If stdout is not a TTY terminal or for
some other reason the width fails to be read you will
get 0.
getTermLines : IO IntGet the number of rows in the terminal associated
with stdout. If stdout is not a TTY terminal or for
some other reason the height fails to be read you
will get 0.