FastColoredTextBoxNS.FindForm.PrevPlace C# (CSharp) Method

        private Place PrevPlace(Place p)
        {
            if (p.iChar == 0)
            {
                // move to previous line
                if (p.iLine == 0)
                {
                    // already at first line, move to the last character at last line
                    return new Place(tb.GetLineLength(tb.LinesCount - 1), tb.LinesCount - 1);
                }
                else
                {
                    return new Place(tb.GetLineLength(p.iLine - 1) - 1, p.iLine - 1);
                }
            }
            else
            {
                return new Place(p.iChar - 1, p.iLine);
            }
        }