Interpret.cs

public void ParseReportName(string reportName)
        {
            string Result = String.Empty;
            // Example: '$My Report Name : week ending $d-1'    
            // $d-1 = get todays date and subtract one and format it into MM/dd/yyyy            
              if(reportName.Contains("$"))
            {
                string formula = String.Empty;
                string type = String.Empty; // d = date is the only supported type atm
             
             // $ marks the start of the formula      
            
                for (int i = reportName.IndexOf('$') + 1; i < reportName.Length; i++)
                {
                    if(reportName[i] == '\"')
                    {
                        continue;
                    }

                    formula += reportName[i];
                }
                type = formula[0].ToString();

                if(type == "d")
                {
                    DateTime today = DateTime.Today;
                    char Operator = formula[1];
                    string [] split = formula.Split(new char[] { '+', '-' },StringSplitOptions.RemoveEmptyEntries);
                    int number = Convert.ToInt32(split[1]);
                    reportName = reportName.Substring(0, reportName.IndexOf('$')).Trim();

                    if (Operator == '+') Result = reportName + " " + (today.AddDays(number).ToString("MM/dd/yyyy"));
                    if (Operator == '-') Result = reportName + " " + (today.AddDays(-number).ToString("MM/dd/yyyy"));                  
                }
            }                        
        }