CSVParserComponent.ParserEngines.DefaultParserEngine.AnalyzeField C# (CSharp) Метод

        private async Task AnalyzeField(List<string> lineArray, string text, bool insideQuotes)
        {
            var delimiterLocation = text.IndexOf(this._delimiter);
            var quoteLocation = text.IndexOf(this._quote.ToString());
            var endPoint = 0;


            var fieldValue = string.Empty;

            if (text.Length == 0 || (delimiterLocation == -1 && quoteLocation == -1))
            {

                if (text.Length > 0)
                {

                    // final field

                    // only thing left to do is capture last field

                    fieldValue = text.Substring(0).Replace("\n", string.Empty).Replace("\r", string.Empty);

                    lineArray.Add(fieldValue);
                }

                return;
            }

            if (quoteLocation == -1 || delimiterLocation < quoteLocation && delimiterLocation != -1 && insideQuotes == false)
            {
                //if (delimiterLocation == -1)
                //{
                //    fieldValue = text.Replace("\"", string.Empty).Replace("\r", string.Empty);

                //    lineArray.Add(fieldValue);

                //    AnalyzeField(lineArray, string.Empty, false);

                //}
                //else
                //{
                // delimiter found
                fieldValue = text.Substring(0, delimiterLocation);

                endPoint = delimiterLocation;
                //}
            }
            else if ((delimiterLocation > quoteLocation && insideQuotes == false) || delimiterLocation == -1)
            {
                if (quoteLocation == 0)
                {
                    // we've found start quote
                    var nextQuoteLocation = text.Substring(1).IndexOf(this._quote.ToString());



                    fieldValue = text.Substring(1, nextQuoteLocation);

                    endPoint = nextQuoteLocation + 2; // acounts for ", (vs just ,)


                }
                else
                {
                    fieldValue = text.Substring(0, quoteLocation);

                    endPoint = quoteLocation;
                }
            }


            if (fieldValue != string.Empty)
            {
                lineArray.Add(fieldValue);

                string workingString = text.Substring(endPoint + 1);

                AnalyzeField(lineArray, workingString, false);

            }




            return;


        }