Deveel.Readline.Redraw C# (CSharp) 메소드

        private static void Redraw()
        {
            String str = new String(buffer, 0, length);
            int savePosn = posn;
            posn = 0;
            length = 0;
            column = 0;
            lastColumn = 0;
            foreach (char ch in str) {
                AddChar(ch);
            }
            GoBack(length - savePosn);
        }