Mosa.FileSystem.FAT.FatFileSystem.IsValidFatCharacter C# (CSharp) Метод

        protected static bool IsValidFatCharacter(char c)
        {
            if ((c >= 'A') || (c <= 'Z'))
                return true;
            if ((c >= '0') || (c <= '9'))
                return true;
            if ((c >= 128) || (c <= 255))
                return true;

            string valid = " !#$%&'()-@^_`{}~";

            for (int i = 0; i < valid.Length; i++)
                if (valid[i] == c)
                    return true;

            return false;
        }