System.Configuration.AppSettingsReader.GetNoneNesting C# (CSharp) Méthode

        private int GetNoneNesting(string val) {
            int count = 0;
            int len = val.Length;
            if (len > 1) {
                while (val[count] == '(' && val[len - count - 1] == ')') {
                    count++;
                }
                if (count > 0 && string.Compare(NullString, 0, val, count, len - 2 * count, StringComparison.Ordinal) != 0) {
                    // the stuff between the parens is not "None"
                    count = 0;
                }
            }
            return count;
        }
    }