FastColoredTextBoxNS.ReplaceMultipleTextCommand.ReplaceMultipleTextCommand C# (CSharp) Method

        public ReplaceMultipleTextCommand(TextSource ts, List<ReplaceRange> ranges)
            : base(ts)
        {
            //sort ranges by place
            ranges.Sort((r1, r2) =>
            {
                if (r1.ReplacedRange.Start.iLine == r2.ReplacedRange.Start.iLine)
                    return r1.ReplacedRange.Start.iChar.CompareTo(r2.ReplacedRange.Start.iChar);
                return r1.ReplacedRange.Start.iLine.CompareTo(r2.ReplacedRange.Start.iLine);
            });
            //
            this.ranges = ranges;
            lastSel = sel = new RangeInfo(ts.CurrentTB.Selection);
        }