# include<stdio.h>
# include<string.h>
# include<stdlib.h>
int
main(int argc, char **argv){
// Declare Variables
char barcode[50];
int count;
long long intBarcode;
long countryCode;
int dig0, dig1, dig2, dig3, dig4, dig5;
int dig6, dig7, dig8, dig9, dig10, dig11;
long long num;
long rem, sum;
int checksum;
long long manufac, product, language, publish, title;
char country[50];
int k, j, i = 0;
// Get input from user as type string
printf("Enter Barcode: \n");
count = scanf( "%s", barcode);
// Check validity of input
if (count != 1){
printf("not a valid input");
return 0;
}
// Remove Hyphens
for (i = 0; i < sizeof(barcode); i++){
if (barcode[i] == '-' || barcode[i] == ' '){
k = j = i;
for (j < sizeof(barcode); j++;){
barcode[k] = barcode[k + 1];
k++;
}}}
// Convert barcode to long long integer
intBarcode = atoll(barcode);
// Determine Country Code
if (intBarcode > 999999999999LL){
countryCode = intBarcode % 10000000000LL;
num = intBarcode/10;
} else {
countryCode = intBarcode % 1000000000LL;
num = intBarcode;
}
// Calculate checksum
dig11 = num%10;
num = num/10;
dig10 = num%10;
num = num/10;
dig9 = num%10;
num = num/10;
dig8 = num%10;
num = num/10;
dig7 = num%10;
num = num/10;
dig6 = num%10;
num = num/10;
dig5 = num%10;
num = num/10;
dig4 = num%10;
num = num/10;
dig3 = num%10;
num = num/10;
dig2 = num%10;
num = num/10;
dig1 = num%10;
num = num/10;
dig0 = num%10;
sum = ((dig0 + dig2 + dig4 + dig6 + dig8 + dig10) + (3*(dig1 + dig3 + dig5 + dig7 + dig9 + dig11)));
rem = sum%10;
checksum = 10 - rem;
if ((intBarcode > 999999999999LL) && (checksum != (intBarcode % 10))){
printf("Not a valid EAN barcode: Checksum incorrect");
// return 0;
}
// Determine other parts of the barcode
// EAN
if (countryCode > 849 && countryCode < 977){
manufac = (100000*dig3 + 10000*dig4 + 1000*dig5 + 100*dig6 + 10*dig7 + dig8);
product = (100*dig9 + 10*dig10 + dig11);
// ISBN
} else if (countryCode > 976 && countryCode < 980){
language = (10*dig3 + dig4);
publish = (1000*dig5 + 100*dig6 + 10*dig7 + dig8);
title = (100*dig9 + 10*dig10 + dig11);
}
// Convert back to type string
sprintf(barcode, "%lld", intBarcode);
// Hyphenate
// EAN
if (countryCode > 849 && countryCode < 977){
memmove(barcode + 3, barcode + 2, 20);
memset(barcode + 3, '-', 1);
memmove(barcode + 10, barcode + 9, 20);
memset(barcode + 10, '-', 1);
memmove(barcode + 13, barcode +12, 20);
memset(barcode + 14, '-', 1);
// ISBN
} else if (countryCode > 976 && countryCode < 980){
memmove(barcode + 3, barcode + 2, 20);
memset(barcode + 3, '-', 1);
memmove(barcode + 6, barcode + 5, 20);
memset(barcode + 6, '-', 1);
memmove(barcode + 11, barcode + 10, 20);
memset(barcode + 11, '-', 1);
memmove(barcode + 15, barcode +14, 20);
memset(barcode + 15, '-', 1);
}
// Determine country
if (countryCode == 850){
char country[50] = {"Cuba"};
} else if (countryCode == 858){
char country[50] ={"Slovakia"};
} else if (countryCode == 859){
char country[50] ={"Czech Republic"};
} else if (countryCode == 860){
char country[50] ={"Serbia"};
} else if (countryCode == 865){
char country[50] ={"Mongolia"};
} else if (countryCode == 867){
char country[50] ={"North Korea"};
} else if (countryCode >= 868 && countryCode <= 869){
char country[50] ={"Turkey"};
} else if (countryCode >= 870 && countryCode <= 879){
char country[50] ={"Netherlands"};
} else if (countryCode == 880){
char country[50] ={"South Korea"};
} else if (countryCode == 884){
char country[50] ={"Cambodia"};
} else if (countryCode == 885){
char country[50] ={"Thailand"};
} else if (countryCode == 888){
char country[50] ={"Singapore"};
} else if (countryCode == 890){
char country[50] ={"India"};
} else if (countryCode == 893){
char country[50] ={"Vietnam"};
} else if (countryCode == 896){
char country[50] ={"Pakistan"};
} else if (countryCode == 899){
char country[50] ={"Indonesia"};
} else if (countryCode >= 900 && countryCode <= 919){
char country[50] ={"Austria"};
} else if (countryCode >= 930 && countryCode <= 939){
char country[50] ={"Australia"};
} else if (countryCode >= 940 && countryCode <= 949){
char country[50] ={"New Zealand"};
} else if (countryCode == 950){
char country[50] ={"Global Office"};
} else if (countryCode == 955){
char country[50] ={"Malaysia"};
} else if (countryCode == 958){
char country[50] ={"Macau"};
} else if (countryCode >= 977 && countryCode <= 979){
char country[50] ={"ISBN"};
} else {
char country[50] ={"country no recognised"};
}
// Print Information
// ISBN
if (countryCode > 976 && countryCode < 979){
printf("Barcode is %s%d\n\n", barcode, checksum);
printf("Barcode is a valid EAN code\n\n");
printf("Country code: %ld (%s)\n", countryCode, country);
printf("Language Group: %lld\n", language);
printf("Publisher: %lld\n", publish);
printf("Item: %lld\n", title);
printf("Checksum: %d\n\n", checksum);
printf("Checksum calculation:\n");
printf("%3d%3d%3d%3d%3d%3d%3d%3d%3d%3d%3d%3d%3d\n",
dig0, dig1, dig2, dig3, dig4, dig5, dig6,
dig7, dig8, dig9, dig10, dig11, checksum);
printf("%3d%3d%3d%3d%3d%3d%3d%3d%3d%3d%3d%3d = %ld %% 10 = %ld; (10 - %ld) %% 10 = %d\n",
dig0, dig1*3, dig2, dig3*3, dig4, dig5*3, dig6, dig7*3,
dig8, dig9*3, dig10, dig11*3, sum, rem, rem, checksum);
// EAN
} else {
printf("Barcode is %s%d\n\n", barcode, checksum);
printf("Barcode is a valid EAN code\n\n");
printf("Country code: %ld (%s)\n", countryCode, country);
printf("Manufacturer code: %lld\n", manufac);
printf("Product code: %lld\n", product);
printf("Checksum: %d\n\n", checksum);
printf("Checksum calculation:\n");
printf("%3d%3d%3d%3d%3d%3d%3d%3d%3d%3d%3d%3d%3d\n",
dig0, dig1, dig2, dig3, dig4, dig5, dig6,
dig7, dig8, dig9, dig10, dig11, checksum);
printf("%3d%3d%3d%3d%3d%3d%3d%3d%3d%3d%3d%3d = %ld %% 10 = %ld; (10 - %ld) %% 10 = %d\n",
dig0, dig1*3, dig2, dig3*3, dig4, dig5*3, dig6, dig7*3,
dig8, dig9*3, dig10, dig11*3, sum, rem, rem, checksum);
}
return 0;
}First let me say sorry about the massive amounts of code but I feel it's essential and I've tried to make it neat and readable. so this is meant to be a code for reading either a 13 digit or 12 digit bar code. then calculating each part of the bar code and printing out some information. problem is its not working. it is printing out random junk. if anyone could see anything i might have missed in the process it would be much appreciated
many thanks
