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Extended Code 93 - Implementacja w Java
Ocena użytkownikóww: *****  / 2
SłabyŚwietny
Nadesłany przez Tomasz Lubiński, 20 września 2006 01:00
Kod przedstawiony poniżej przedstawia główną część rozwiązania problemu.
Pobierz pełne rozwiązanie.

Jeżeli nie odpowiada Ci sposób formatowania kodu przez autora skorzystaj z pretty printer'a i dostosuj go automatycznie do siebie.

BarCode.java:
/**
 * @author Tomasz Lubinski
 * (c)2006 algorytm.org
 *
 *  Code 93 Bar Code
 */
public class BarCode {
	
	  private static final char special_1 = 127 + 1; // ($)
	  private static final char special_2 = 127 + 2; // (%)
	  private static final char special_3 = 127 + 3; // (/)
	  private static final char special_4 = 127 + 4; // (+)
	
	  private static final char code93signs[] = {
		        '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
		        'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J',
		        'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T',
		        'U', 'V', 'W', 'X', 'Y', 'Z', '-', '.', ' ', '$',
		        '/', '+', '%', special_1, special_2, special_3, special_4};

	  private static final char code93bars[][] = {
	        {1, 0, 0, 0, 1, 0, 1, 0, 0},
	        {1, 0, 1, 0, 0, 1, 0, 0, 0},
	        {1, 0, 1, 0, 0, 0, 1, 0, 0},
	        {1, 0, 1, 0, 0, 0, 0, 1, 0},
	        {1, 0, 0, 1, 0, 1, 0, 0, 0},
	        {1, 0, 0, 1, 0, 0, 1, 0, 0},
	        {1, 0, 0, 1, 0, 0, 0, 1, 0},
	        {1, 0, 1, 0, 1, 0, 0, 0, 0},
	        {1, 0, 0, 0, 1, 0, 0, 1, 0},
	        {1, 0, 0, 0, 0, 1, 0, 1, 0},
	        {1, 1, 0, 1, 0, 1, 0, 0, 0},
	        {1, 1, 0, 1, 0, 0, 1, 0, 0},
	        {1, 1, 0, 1, 0, 0, 0, 1, 0},
	        {1, 1, 0, 0, 1, 0, 1, 0, 0},
	        {1, 1, 0, 0, 1, 0, 0, 1, 0},
	        {1, 1, 0, 0, 0, 1, 0, 1, 0},
	        {1, 0, 1, 1, 0, 1, 0, 0, 0},
	        {1, 0, 1, 1, 0, 0, 1, 0, 0},
	        {1, 0, 1, 1, 0, 0, 0, 1, 0},
	        {1, 0, 0, 1, 1, 0, 1, 0, 0},
	        {1, 0, 0, 0, 1, 1, 0, 1, 0},
	        {1, 0, 1, 0, 1, 1, 0, 0, 0},
	        {1, 0, 1, 0, 0, 1, 1, 0, 0},
	        {1, 0, 1, 0, 0, 0, 1, 1, 0},
	        {1, 0, 0, 1, 0, 1, 1, 0, 0},
	        {1, 0, 0, 0, 1, 0, 1, 1, 0},
	        {1, 1, 0, 1, 1, 0, 1, 0, 0},
	        {1, 1, 0, 1, 1, 0, 0, 1, 0},
	        {1, 1, 0, 1, 0, 1, 1, 0, 0},
	        {1, 1, 0, 1, 0, 0, 1, 1, 0},
	        {1, 1, 0, 0, 1, 0, 1, 1, 0},
	        {1, 1, 0, 0, 1, 1, 0, 1, 0},
	        {1, 0, 1, 1, 0, 1, 1, 0, 0},
	        {1, 0, 1, 1, 0, 0, 1, 1, 0},
	        {1, 0, 0, 1, 1, 0, 1, 1, 0},
	        {1, 0, 0, 1, 1, 1, 0, 1, 0},
	        {1, 0, 0, 1, 0, 1, 1, 1, 0},
	        {1, 1, 1, 0, 1, 0, 1, 0, 0},
	        {1, 1, 1, 0, 1, 0, 0, 1, 0},
	        {1, 1, 1, 0, 0, 1, 0, 1, 0},
	        {1, 0, 1, 1, 0, 1, 1, 1, 0},
	        {1, 0, 1, 1, 1, 0, 1, 1, 0},
	        {1, 1, 0, 1, 0, 1, 1, 1, 0},
	        {1, 0, 0, 1, 0, 0, 1, 1, 0},
	        {1, 1, 1, 0, 1, 1, 0, 1, 0},
	        {1, 1, 1, 0, 1, 0, 1, 1, 0},
	        {1, 0, 0, 1, 1, 0, 0, 1, 0}
	  };
	  
	  private static final String extendedCode93Replace[] = {
	        "\u0081U", "\u0080A", "\u0080B", "\u0080C", "\u0080D", "\u0080E", "\u0080F", "\u0080G", "\u0080H",
	        "\u0080I", "\u0080J", "\u0080K", "\u0080L", "\u0080M", "\u0080N", "\u0080O", "\u0080P", "\u0080Q",
	        "\u0080R", "\u0080S", "\u0080T", "\u0080U", "\u0080V", "\u0080W", "\u0080X", "\u0080Y", "\u0080Z",
	        "\u0081A", "\u0081B", "\u0081C", "\u0081D", "\u0081E", " ", "\u0082A", "\u0082B", "\u0082C", "\u0082D",
	        "\u0082E", "\u0082F", "\u0082G", "\u0082H", "\u0082I", "\u0082J", "\u0082K", "\u0082L", "-", ".", 
	        "\u0082O", "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "\u0082Z", "\u0081F", "\u0081G", "\u0081H",
	        "\u0081I", "\u0081J", "\u0081V", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O",
	        "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z", "\u0081K", "\u0081L", "\u0081M", "\u0081N",
	        "\u0081O", "\u0081W", "\u0083A", "\u0083B", "\u0083C", "\u0083D", "\u0083E", "\u0083F", "\u0083G",
	        "\u0083H", "\u0083I", "\u0083J", "\u0083K", "\u0083L", "\u0083M", "\u0083N", "\u0083O", "\u0083P",
	        "\u0083Q", "\u0083R", "\u0083S", "\u0083T", "\u0083U", "\u0083V", "\u0083W", "\u0083X", "\u0083Y", 
	        "\u0083Z", "\u0081P", "\u0081Q", "\u0081R", "\u0081S", "\u0081T"
	  };

	  private static final char start_stop[] = {
		  1, 0, 1, 0, 1, 1, 1, 1, 0
	  };
	  
	  private static final char termination_bar[] = {
		  1
	  };	  

	  public boolean check(String txt) {
	      for (int i=0; i<txt.length(); i++) {
              if (checkLetter(txt.charAt(i)) == false)
              		return false;
          }
		  return true;
	  }

	  private boolean checkLetter(char ch) {
	        for (int i=0; i<code93signs.length; i++) {
                if (code93signs[i] == ch)
                	return true;
	        }
	        return false;
	  }
	  
	  public char[] getBars(char ch) {
	        for (int i=0; i<code93signs.length; i++) {
                if (code93signs[i] == ch)
                	return code93bars[i];
	        }		  
		  return null;
	  }
	  
	  public char[] getStartStopBars() {
		  return start_stop;
	  }
	  
	  public char[] getTermination_bar() {
		  return termination_bar;
	  }	  
	  
	  //returns letter value for check digit
	  private int getLetterValue(char ch) {
	          for (int i=0; i<code93signs.length; i++)
	                  if (code93signs[i] == ch)
	                          return i;

	          return 0;
	  }

	  // return check digit C
	  private int checkDigitC(String txt) {
		  
	        int sum = 0;
	        int w = 0;

	        for (int i=txt.length()-1; i>=0; i--)
	        {
	                sum += (getLetterValue(txt.charAt(i)) * ((w % 20) + 1));
	                w++;
	        }

	        return (sum % 47);
	  }	
	  
	  // return check digit K
	  private int checkDigitK(String txt) {
		  
	        int sum = checkDigitC(txt);
	        int w = 1;

	        for (int i=txt.length()-1; i>=0; i--)
	        {
	                sum += (getLetterValue(txt.charAt(i)) * ((w % 15) + 1));
	                w++;
	        }

	        return (sum % 47);
	  }	  
	  
	  public char[] getCheckDigitBarsC(String txt) {
           	return code93bars[checkDigitC(txt)];
	  }	 
	  
	  public char[] getCheckDigitBarsK(String txt) {
         	return code93bars[checkDigitK(txt)];
	  }		  
	  
	  // converts to code 39 set of characters
	  public String convert(String txt)
	  {
	          String result = "";

	          for (int i=0; i<txt.length(); i++)
	          {
	                  if ((txt.charAt(i) >= 0) && (txt.charAt(i) <= 127))
	                          result += extendedCode93Replace[txt.charAt(i)];
	                  else
	                          result += txt.substring(i, i+1);
	          }

	          return result;
	  }	  
}
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