System.Configuration.ClientConfigPaths.Validate C# (CSharp) Метод

        private string Validate(string str, bool limitSize) {
            string validated = str;

            if (!String.IsNullOrEmpty(validated)) {
                // First replace all illegal characters with underscores
                foreach (char c in Path.GetInvalidFileNameChars()) {
                    validated = validated.Replace(c, '_');
                }
    
                // Replace all spaces with underscores
                validated = validated.Replace(' ', '_');

                if (limitSize) {
                    validated = (validated.Length > MAX_LENGTH_TO_USE) ? validated.Substring(0, MAX_LENGTH_TO_USE) : validated;
                }
            }

            return validated;
        }
    }