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169 lines
7.2 KiB
C#
169 lines
7.2 KiB
C#
9 months ago
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using System;
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using System.Collections.Generic;
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using System.Text;
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namespace BarcodeLib.Symbologies
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{
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/// <summary>
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/// Code 93 encoding
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/// Written by: Brad Barnhill
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/// </summary>
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class Code93 : BarcodeCommon, IBarcode
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{
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private System.Data.DataTable C93_Code = new System.Data.DataTable("C93_Code");
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/// <summary>
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/// Encodes with Code93.
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/// </summary>
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/// <param name="input">Data to encode.</param>
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public Code93(string input)
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{
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Raw_Data = input;
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}//Code93
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/// <summary>
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/// Encode the raw data using the Code 93 algorithm.
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/// </summary>
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private string Encode_Code93()
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{
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this.init_Code93();
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string FormattedData = Add_CheckDigits(Raw_Data);
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string result = C93_Code.Select("Character = '*'")[0]["Encoding"].ToString();
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foreach (char c in FormattedData)
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{
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try
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{
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result += C93_Code.Select("Character = '" + c.ToString() + "'")[0]["Encoding"].ToString();
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}//try
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catch
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{
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Error("EC93-1: Invalid data.");
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}//catch
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}//foreach
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result += C93_Code.Select("Character = '*'")[0]["Encoding"].ToString();
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//termination bar
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result += "1";
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//clear the hashtable so it no longer takes up memory
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this.C93_Code.Clear();
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return result;
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}//Encode_Code93
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private void init_Code93()
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{
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C93_Code.Rows.Clear();
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C93_Code.Columns.Clear();
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C93_Code.Columns.Add("Value");
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C93_Code.Columns.Add("Character");
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C93_Code.Columns.Add("Encoding");
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C93_Code.Rows.Add(new object[] { "0", "0", "100010100" });
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C93_Code.Rows.Add(new object[] { "1", "1", "101001000" });
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C93_Code.Rows.Add(new object[] { "2", "2", "101000100" });
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C93_Code.Rows.Add(new object[] { "3", "3", "101000010" });
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C93_Code.Rows.Add(new object[] { "4", "4", "100101000" });
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C93_Code.Rows.Add(new object[] { "5", "5", "100100100" });
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C93_Code.Rows.Add(new object[] { "6", "6", "100100010" });
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C93_Code.Rows.Add(new object[] { "7", "7", "101010000" });
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C93_Code.Rows.Add(new object[] { "8", "8", "100010010" });
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C93_Code.Rows.Add(new object[] { "9", "9", "100001010" });
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C93_Code.Rows.Add(new object[] { "10", "A", "110101000" });
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C93_Code.Rows.Add(new object[] { "11", "B", "110100100" });
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C93_Code.Rows.Add(new object[] { "12", "C", "110100010" });
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C93_Code.Rows.Add(new object[] { "13", "D", "110010100" });
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C93_Code.Rows.Add(new object[] { "14", "E", "110010010" });
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C93_Code.Rows.Add(new object[] { "15", "F", "110001010" });
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C93_Code.Rows.Add(new object[] { "16", "G", "101101000" });
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C93_Code.Rows.Add(new object[] { "17", "H", "101100100" });
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C93_Code.Rows.Add(new object[] { "18", "I", "101100010" });
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C93_Code.Rows.Add(new object[] { "19", "J", "100110100" });
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C93_Code.Rows.Add(new object[] { "20", "K", "100011010" });
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C93_Code.Rows.Add(new object[] { "21", "L", "101011000" });
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C93_Code.Rows.Add(new object[] { "22", "M", "101001100" });
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C93_Code.Rows.Add(new object[] { "23", "N", "101000110" });
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C93_Code.Rows.Add(new object[] { "24", "O", "100101100" });
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C93_Code.Rows.Add(new object[] { "25", "P", "100010110" });
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C93_Code.Rows.Add(new object[] { "26", "Q", "110110100" });
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C93_Code.Rows.Add(new object[] { "27", "R", "110110010" });
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C93_Code.Rows.Add(new object[] { "28", "S", "110101100" });
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C93_Code.Rows.Add(new object[] { "29", "T", "110100110" });
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C93_Code.Rows.Add(new object[] { "30", "U", "110010110" });
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C93_Code.Rows.Add(new object[] { "31", "V", "110011010" });
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C93_Code.Rows.Add(new object[] { "32", "W", "101101100" });
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C93_Code.Rows.Add(new object[] { "33", "X", "101100110" });
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C93_Code.Rows.Add(new object[] { "34", "Y", "100110110" });
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C93_Code.Rows.Add(new object[] { "35", "Z", "100111010" });
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C93_Code.Rows.Add(new object[] { "36", "-", "100101110" });
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C93_Code.Rows.Add(new object[] { "37", ".", "111010100" });
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C93_Code.Rows.Add(new object[] { "38", " ", "111010010" });
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C93_Code.Rows.Add(new object[] { "39", "$", "111001010" });
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C93_Code.Rows.Add(new object[] { "40", "/", "101101110" });
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C93_Code.Rows.Add(new object[] { "41", "+", "101110110" });
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C93_Code.Rows.Add(new object[] { "42", "%", "110101110" });
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C93_Code.Rows.Add(new object[] { "43", "(", "100100110" });//dont know what character actually goes here
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C93_Code.Rows.Add(new object[] { "44", ")", "111011010" });//dont know what character actually goes here
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C93_Code.Rows.Add(new object[] { "45", "#", "111010110" });//dont know what character actually goes here
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C93_Code.Rows.Add(new object[] { "46", "@", "100110010" });//dont know what character actually goes here
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C93_Code.Rows.Add(new object[] { "-", "*", "101011110" });
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}//init_Code93
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private string Add_CheckDigits(string input)
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{
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//populate the C weights
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int[] aryCWeights = new int[input.Length];
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int curweight = 1;
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for (int i = input.Length - 1; i >= 0; i--)
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{
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if (curweight > 20)
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curweight = 1;
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aryCWeights[i] = curweight;
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curweight++;
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}//for
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//populate the K weights
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int[] aryKWeights = new int[input.Length + 1];
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curweight = 1;
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for (int i = input.Length; i >= 0; i--)
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{
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if (curweight > 15)
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curweight = 1;
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aryKWeights[i] = curweight;
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curweight++;
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}//for
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//calculate C checksum
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int SUM = 0;
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for (int i = 0; i < input.Length; i++)
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{
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SUM += aryCWeights[i] * Int32.Parse(C93_Code.Select("Character = '" + input[i].ToString() + "'")[0]["Value"].ToString());
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}//for
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int ChecksumValue = SUM % 47;
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input += C93_Code.Select("Value = '" + ChecksumValue.ToString() + "'")[0]["Character"].ToString();
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//calculate K checksum
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SUM = 0;
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for (int i = 0; i < input.Length; i++)
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{
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SUM += aryKWeights[i] * Int32.Parse(C93_Code.Select("Character = '" + input[i].ToString() + "'")[0]["Value"].ToString());
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}//for
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ChecksumValue = SUM % 47;
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input += C93_Code.Select("Value = '" + ChecksumValue.ToString() + "'")[0]["Character"].ToString();
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return input;
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}//Calculate_CheckDigits
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#region IBarcode Members
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public string Encoded_Value
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{
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get { return Encode_Code93(); }
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}
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#endregion
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}//class
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}//namespace
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