RegexParser.Patterns.PatternParsers.getSpecialCharsInsideClass C# (CSharp) Method

        private static string getSpecialCharsInsideClass(bool isFirstPos, bool isSubtract, bool isAfterDash)
        {
            return isFirstPos ? specialCharsInsideClass_FirstPos :
                   !isSubtract ? specialCharsInsideClass :
                   isAfterDash ? specialCharsInsideClass_Subtract_AfterDash :
                                 specialCharsInsideClass_Subtract;
        }