EAN128 or GS1-128 decode c#

Question

Here is the sample of EAN128 or new name GS1-128 barcode

01088888931021461712031510W1040190

I want to decode it to ais

(01)08888893102146
(17)120315
(10)W1040190

But the barcode can be changed like this

1712031510W1040190
(17)120315
(10)W1040190

is there any possible ways to solve it with regex or what is the better way

Now I am trying this

public String AICodes(String pAI)
    {
        switch (pAI)
        {
            case "01":
                return "01\\d{14}";
            case "17":
                return "17\\d{6}";
            case "10":
                return "17\\d{6}10[a-zA-Z0-9|]{1,20}";
        }
        return String.Empty;
    }

private void GS1DataConvert(string pBarcode, string pBarfnc)
    {
       Match match = Regex.Match(pBarcode, AICodes(pBarfnc));
        if (match.Success)
        {
            MessageBox.Show(match.Groups[0].Value);
        }
    }

string barfnc = "01";

GS1DataConvert(barcode, barfnc);
barfnc = "17";
GS1DataConvert(barcode, barfnc);
barfnc = "10";
GS1DataConvert(barcode, barfnc);

Answer 1

here is my solution. It has the a complete List of AIs and support a group seperator. I use this solution for a DATALOGIC PM9500 Scanner. So i don't know if the group seperator or the start code is the same for other Scanners. I comment the AIs 91 till 99 out by purpose. The lenght can be define by company.

public static class EAN128Parser
{
    public enum DataType
    {
        Numeric,
        Alphanumeric
    }

    /// <summary>
    /// Information Class for an Application Identifier (AI)
    /// </summary>
    public class AII
    {
        public string AI { get; set; }
        public string Description { get; set; }
        public int LengthOfAI { get; set; }
        public DataType DataDescription { get; set; }
        public int LengthOfData { get; set; }
        public bool FNC1 { get; set; }

        public AII(string AI, string Description, int LengthOfAI, DataType DataDescription, int LengthOfData, bool FNC1)
        {
            this.AI = AI;
            this.Description = Description;
            this.LengthOfAI = LengthOfAI;
            this.DataDescription = DataDescription;
            this.LengthOfData = LengthOfData;
            this.FNC1 = FNC1;
        }

        public override string ToString()
        {
            return String.Format("{0} [{1}]", AI, Description);
        }
    }

    private static SortedDictionary<string, AII> aiiDict = new SortedDictionary<string, AII>();
    private static string[] aiis;
    private static int minLengthOfAI = 1;
    private static int maxLengthOfAI = 4;
    private static char groutSeperator = (char)29;
    private static string ean128StartCode = "]C1";
    private static bool hasCheckSum = true;

    public static bool HasCheckSum
    {
        get { return EAN128Parser.hasCheckSum; }
        set { EAN128Parser.hasCheckSum = value; }
    }

    public static char GroutSeperator
    {
        get { return EAN128Parser.groutSeperator; }
        set { EAN128Parser.groutSeperator = value; }
    }

    public static string EAN128StartCode
    {
        get { return EAN128Parser.ean128StartCode; }
        set { EAN128Parser.ean128StartCode = value; }
    }

    static EAN128Parser()
    {
        Add("00", "SerialShippingContainerCode", 2, DataType.Numeric, 18, false);
        Add("01", "EAN-NumberOfTradingUnit", 2, DataType.Numeric, 14, false);
        Add("02", "EAN-NumberOfTheWaresInTheShippingUnit", 2, DataType.Numeric, 14, false);
        Add("10", "Charge_Number", 2, DataType.Alphanumeric, 20, true);
        Add("11", "ProducerDate_JJMMDD", 2, DataType.Numeric, 6, false);
        Add("12", "DueDate_JJMMDD", 2, DataType.Numeric, 6, false);
        Add("13", "PackingDate_JJMMDD", 2, DataType.Numeric, 6, false);
        Add("15", "MinimumDurabilityDate_JJMMDD", 2, DataType.Numeric, 6, false);
        Add("17", "ExpiryDate_JJMMDD", 2, DataType.Numeric, 6, false);
        Add("20", "ProductModel", 2, DataType.Numeric, 2, false);
        Add("21", "SerialNumber", 2, DataType.Alphanumeric, 20, true);
        Add("22", "HIBCCNumber", 2, DataType.Alphanumeric, 29, false);
        Add("240", "PruductIdentificationOfProducer", 3, DataType.Alphanumeric, 30, true);
        Add("241", "CustomerPartsNumber", 3, DataType.Alphanumeric, 30, true);
        Add("250", "SerialNumberOfAIntegratedModule", 3, DataType.Alphanumeric, 30, true);
        Add("251", "ReferenceToTheBasisUnit", 3, DataType.Alphanumeric, 30, true);
        Add("252", "GlobalIdentifierSerialisedForTrade", 3, DataType.Numeric, 2, false);
        Add("30", "AmountInParts", 2, DataType.Numeric, 8, true);
        Add("310d", "NetWeight_Kilogram", 4, DataType.Numeric, 6, false);
        Add("311d", "Length_Meter", 4, DataType.Numeric, 6, false);
        Add("312d", "Width_Meter", 4, DataType.Numeric, 6, false);
        Add("313d", "Heigth_Meter", 4, DataType.Numeric, 6, false);
        Add("314d", "Surface_SquareMeter", 4, DataType.Numeric, 6, false);
        Add("315d", "NetVolume_Liters", 4, DataType.Numeric, 6, false);
        Add("316d", "NetVolume_CubicMeters", 4, DataType.Numeric, 6, false);
        Add("320d", "NetWeight_Pounds", 4, DataType.Numeric, 6, false);
        Add("321d", "Length_Inches", 4, DataType.Numeric, 6, false);
        Add("322d", "Length_Feet", 4, DataType.Numeric, 6, false);
        Add("323d", "Length_Yards", 4, DataType.Numeric, 6, false);
        Add("324d", "Width_Inches", 4, DataType.Numeric, 6, false);
        Add("325d", "Width_Feed", 4, DataType.Numeric, 6, false);
        Add("326d", "Width_Yards", 4, DataType.Numeric, 6, false);
        Add("327d", "Heigth_Inches", 4, DataType.Numeric, 6, false);
        Add("328d", "Heigth_Feed", 4, DataType.Numeric, 6, false);
        Add("329d", "Heigth_Yards", 4, DataType.Numeric, 6, false);
        Add("330d", "GrossWeight_Kilogram", 4, DataType.Numeric, 6, false);
        Add("331d", "Length_Meter", 4, DataType.Numeric, 6, false);
        Add("332d", "Width_Meter", 4, DataType.Numeric, 6, false);
        Add("333d", "Heigth_Meter", 4, DataType.Numeric, 6, false);
        Add("334d", "Surface_SquareMeter", 4, DataType.Numeric, 6, false);
        Add("335d", "GrossVolume_Liters", 4, DataType.Numeric, 6, false);
        Add("336d", "GrossVolume_CubicMeters", 4, DataType.Numeric, 6, false);
        Add("337d", "KilogramPerSquareMeter", 4, DataType.Numeric, 6, false);
        Add("340d", "GrossWeight_Pounds", 4, DataType.Numeric, 6, false);
        Add("341d", "Length_Inches", 4, DataType.Numeric, 6, false);
        Add("342d", "Length_Feet", 4, DataType.Numeric, 6, false);
        Add("343d", "Length_Yards", 4, DataType.Numeric, 6, false);
        Add("344d", "Width_Inches", 4, DataType.Numeric, 6, false);
        Add("345d", "Width_Feed", 4, DataType.Numeric, 6, false);
        Add("346d", "Width_Yards", 4, DataType.Numeric, 6, false);
        Add("347d", "Heigth_Inches", 4, DataType.Numeric, 6, false);
        Add("348d", "Heigth_Feed", 4, DataType.Numeric, 6, false);
        Add("349d", "Heigth_Yards", 4, DataType.Numeric, 6, false);
        Add("350d", "Surface_SquareInches", 4, DataType.Numeric, 6, false);
        Add("351d", "Surface_SquareFeet", 4, DataType.Numeric, 6, false);
        Add("352d", "Surface_SquareYards", 4, DataType.Numeric, 6, false);
        Add("353d", "Surface_SquareInches", 4, DataType.Numeric, 6, false);
        Add("354d", "Surface_SquareFeed", 4, DataType.Numeric, 6, false);
        Add("355d", "Surface_SquareYards", 4, DataType.Numeric, 6, false);
        Add("356d", "NetWeight_TroyOunces", 4, DataType.Numeric, 6, false);
        Add("357d", "NetVolume_Ounces", 4, DataType.Numeric, 6, false);
        Add("360d", "NetVolume_Quarts", 4, DataType.Numeric, 6, false);
        Add("361d", "NetVolume_Gallonen", 4, DataType.Numeric, 6, false);
        Add("362d", "GrossVolume_Quarts", 4, DataType.Numeric, 6, false);
        Add("363d", "GrossVolume_Gallonen", 4, DataType.Numeric, 6, false);
        Add("364d", "NetVolume_CubicInches", 4, DataType.Numeric, 6, false);
        Add("365d", "NetVolume_CubicFeet", 4, DataType.Numeric, 6, false);
        Add("366d", "NetVolume_CubicYards", 4, DataType.Numeric, 6, false);
        Add("367d", "GrossVolume_CubicInches", 4, DataType.Numeric, 6, false);
        Add("368d", "GrossVolume_CubicFeet", 4, DataType.Numeric, 6, false);
        Add("369d", "GrossVolume_CubicYards", 4, DataType.Numeric, 6, false);
        Add("37", "QuantityInParts", 2, DataType.Numeric, 8, true);
        Add("390d", "AmountDue_DefinedValutaBand", 4, DataType.Numeric, 15, true);
        Add("391d", "AmountDue_WithISOValutaCode", 4, DataType.Numeric, 18, true);
        Add("392d", "BePayingAmount_DefinedValutaBand", 4, DataType.Numeric, 15, true);
        Add("393d", "BePayingAmount_WithISOValutaCode", 4, DataType.Numeric, 18, true);
        Add("400", "JobNumberOfGoodsRecipient", 3, DataType.Alphanumeric, 30, true);
        Add("401", "ShippingNumber", 3, DataType.Alphanumeric, 30, true);
        Add("402", "DeliveryNumber", 3, DataType.Numeric, 17, false);
        Add("403", "RoutingCode", 3, DataType.Alphanumeric, 30, true);
        Add("410", "EAN_UCC_GlobalLocationNumber(GLN)_GoodsRecipient", 3, DataType.Numeric, 13, false);
        Add("411", "EAN_UCC_GlobalLocationNumber(GLN)_InvoiceRecipient", 3, DataType.Numeric, 13, false);
        Add("412", "EAN_UCC_GlobalLocationNumber(GLN)_Distributor", 3, DataType.Numeric, 13, false);
        Add("413", "EAN_UCC_GlobalLocationNumber(GLN)_FinalRecipient", 3, DataType.Numeric, 13, false);
        Add("414", "EAN_UCC_GlobalLocationNumber(GLN)_PhysicalLocation", 3, DataType.Numeric, 13, false);
        Add("415", "EAN_UCC_GlobalLocationNumber(GLN)_ToBilligParticipant", 3, DataType.Numeric, 13, false);
        Add("420", "ZipCodeOfRecipient_withoutCountryCode", 3, DataType.Alphanumeric, 20, true);
        Add("421", "ZipCodeOfRecipient_withCountryCode", 3, DataType.Alphanumeric, 12, true);
        Add("422", "BasisCountryOfTheWares_ISO3166Format", 3, DataType.Numeric, 3, false);
        Add("7001", "Nato Stock Number", 4, DataType.Numeric, 13, false);
        Add("8001", "RolesProducts", 4, DataType.Numeric, 14, false);
        Add("8002", "SerialNumberForMobilePhones", 4, DataType.Alphanumeric, 20, true);
        Add("8003", "GlobalReturnableAssetIdentifier", 4, DataType.Alphanumeric, 34, true);
        Add("8004", "GlobalIndividualAssetIdentifier", 4, DataType.Numeric, 30, true);
        Add("8005", "SalesPricePerUnit", 4, DataType.Numeric, 6, false);
        Add("8006", "IdentifikationOfAProductComponent", 4, DataType.Numeric, 18, false);
        Add("8007", "IBAN", 4, DataType.Alphanumeric, 30, true);
        Add("8008", "DataAndTimeOfManufacturing", 4, DataType.Numeric, 12, true);
        Add("8018", "GlobalServiceRelationNumber", 4, DataType.Numeric, 18, false);
        Add("8020", "NumberBillCoverNumber", 4, DataType.Alphanumeric, 25, false);
        Add("8100", "CouponExtendedCode_NSC_offerCcode", 4, DataType.Numeric, 10, false);
        Add("8101", "CouponExtendedCode_NSC_offerCcode_EndOfOfferCode", 4, DataType.Numeric, 14, false);
        Add("8102", "CouponExtendedCode_NSC", 4, DataType.Numeric, 6, false);
        Add("90", "InformationForBilateralCoordinatedApplications", 2, DataType.Alphanumeric, 30, true);
        //Add("91", "Company specific", 2, DataType.Alphanumeric, 30, true);
        //Add("92", "Company specific", 2, DataType.Alphanumeric, 30, true);
        //Add("93", "Company specific", 2, DataType.Alphanumeric, 30, true);
        //Add("94", "Company specific", 2, DataType.Alphanumeric, 30, true);
        //Add("95", "Company specific", 2, DataType.Alphanumeric, 30, true);
        //Add("96", "Company specific", 2, DataType.Alphanumeric, 30, true);
        //Add("97", "Company specific", 2, DataType.Alphanumeric, 30, true);
        //Add("98", "Company specific", 2, DataType.Alphanumeric, 30, true);
        //Add("99", "Company specific", 2, DataType.Alphanumeric, 30, true);
        aiis = aiiDict.Keys.ToArray();
        minLengthOfAI = aiiDict.Values.Min(el => el.LengthOfAI);
        maxLengthOfAI = aiiDict.Values.Max(el => el.LengthOfAI);

    }
    /// <summary>
    /// Add an Application Identifier (AI)
    /// </summary>
    /// <param name="AI">Number of the AI</param>
    /// <param name="Description"></param>
    /// <param name="LengthOfAI"></param>
    /// <param name="DataDescription">The type of the content</param>
    /// <param name="LengthOfData">The max lenght of the content</param>
    /// <param name="FNC1">Support a group seperator</param>
    public static void Add(string AI, string Description, int LengthOfAI, DataType DataDescription, int LengthOfData, bool FNC1)
    {
        aiiDict[AI] = new AII(AI, Description, LengthOfAI, DataDescription, LengthOfData, FNC1);
    }

    /// <summary>
    /// Parse the ean128 code
    /// </summary>
    /// <param name="data">The raw scanner data</param>
    /// <param name="throwException">If an exception will be thrown if an AI cannot be found</param>
    /// <returns>The different parts of the ean128 code</returns>
    public static Dictionary<AII, string> Parse(string data, bool throwException = false)
    {
        // cut off the EAN128 start code 
        if (data.StartsWith(EAN128StartCode))
            data = data.Substring(EAN128StartCode.Length);
        // cut off the check sum
        if (HasCheckSum)
            data = data.Substring(0, data.Length - 2);

        Dictionary<AII, string> result = new Dictionary<AII, string>();
        int index = 0;
        // walkk through the EAN128 code
        while (index < data.Length)
        {
            // try to get the AI at the current position
            var ai = GetAI(data, ref index);
            if (ai == null)
            {
                if(throwException)
                    throw new InvalidOperationException("AI not found");
                return result;
            }
            // get the data to the current AI
            string code = GetCode(data, ai, ref index);
            result[ai] = code;
        }

        return result;
    }

    /// <summary>
    /// Try to get the AI at the current position
    /// </summary>
    /// <param name="data">The row data from the scanner</param>
    /// <param name="index">The refrence of the current position</param>
    /// <param name="usePlaceHolder">Sets if the last character of the AI should replaced with a placehoder ("d")</param>
    /// <returns>The current AI or null if no match was found</returns>
    private static AII GetAI(string data, ref int index, bool usePlaceHolder = false)
    {
        AII result = null;
        // Step through the different lenghts of the AIs
        for (int i = minLengthOfAI; i <= maxLengthOfAI; i++)
        {
            // get the AI sub string
            string ai = data.Substring(index, i);
            if (usePlaceHolder)
                ai = ai.Remove(ai.Length - 1) + "d";
            // try to get the ai from the dictionary
            if (aiiDict.TryGetValue(ai, out result))
            {
                // Shift the index to the next
                index += i;
                return result;
            }
            // if no AI found, try it with the next lenght
        }
        // if no AI found here, than try it with placeholders. Assumed that is the first sep where usePlaceHolder is false
        if (!usePlaceHolder)
            result = GetAI(data, ref index, true);
        return result;
    }

    /// <summary>
    /// Get the current code to the AI
    /// </summary>
    /// <param name="data">The row data from the scanner</param>
    /// <param name="ai">The current AI</param>
    /// <param name="index">The refrence of the current position</param>
    /// <returns>the data to the current AI</returns>
    private static string GetCode(string data, AII ai, ref int index)
    {
        // get the max lenght to read.
        int lenghtToRead = Math.Min(ai.LengthOfData, data.Length - index);
        // get the data of the current AI
        string result = data.Substring(index, lenghtToRead);
        // check if the AI support a group seperator
        if (ai.FNC1)
        {
            // try to find the index of the group seperator
            int indexOfGroupTermination = result.IndexOf(GroutSeperator);
            if (indexOfGroupTermination >= 0)
                lenghtToRead = indexOfGroupTermination + 1;
            // get the data of the current AI till the gorup seperator
            result = data.Substring(index, lenghtToRead);
        }

        // Shift the index to the next
        index += lenghtToRead;
        return result;
    }
}