System.Text.RegularExpressions.Regex.Split C# (CSharp) Метод

        public string[] Split(string input)
        {
            throw null;
        }

        /// <summary>
        /// Browse button even handler
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void buttonBrowse_Click(object sender, EventArgs e)
        {
            OpenFileDialog fd = new OpenFileDialog();
            fd.Filter = "VCG files|*.vcg|All Files|*.*";
            if (fd.ShowDialog() == DialogResult.OK)
            {
                textBoxInputFilePath.Text = fd.FileName;
                selectedFilePath = fd.FileName;

                if (selectedFilePath != "")
                {
                    myLogicLayer.identifyLoops(selectedFilePath);
                    richTextBoxBasicBlock.Text = "";
                    richTextBoxBackEdgesInCfg.Text = "";
                    richTextBoxLoopInformation.Text = myLogicLayer.getLoops();

                    Regex r = new Regex("\\n");
                    String[] lines = r.Split(myLogicLayer.getIntermidiateCodeAsBasicBlocks());
                    //Next, I take each line and process its contents like so.
                    foreach (string l in lines)
                    {
                        ParseLine(l);
                    }

                    lines = r.Split(myLogicLayer.getBackEdges());
                    //Next, I take each line and process its contents like so.
                    foreach (string l in lines)
                    {
                        parseBackEdges(l);
                    }
                }

            }
        }