FastColoredTextBoxNS.MultiSelectionCommand.ExecuteInsertTextCommand C# (CSharp) Method

        private void ExecuteInsertTextCommand(ref int iChar, string text)
        {
            var lines = text.Split('\n');
            foreach (var r in ranges)
            {
                var line = ts.CurrentTB[r.Start.iLine];
                var lineIsEmpty = r.End < r.Start && line.StartSpacesCount == line.Count;
                if (!lineIsEmpty)
                {
                    var insertedText = lines[0];
                    if (r.End < r.Start && insertedText != "")
                    {
                        //add forwarding spaces
                        insertedText = new string(' ', r.Start.iChar - r.End.iChar) + insertedText;
                        r.Start = r.End;
                    }
                    ts.CurrentTB.Selection = r;
                    var c = new InsertTextCommand(ts, insertedText);
                    c.Execute();
                    if (ts.CurrentTB.Selection.End.iChar > iChar)
                        iChar = ts.CurrentTB.Selection.End.iChar;
                    commandsByRanges.Add(c);
                }
            }
        }