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Added EAN-14 and corrected bug in EAN-128

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hooper114 2008-09-19 08:49:30 +00:00
parent 30f8e4f77b
commit c8adcab343
1 changed files with 49 additions and 0 deletions
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49
backend/code128.c
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@ -696,6 +696,11 @@ int ean_128(struct zint_symbol *symbol, unsigned char source[])
/* Rule 2 */ /* Rule 2 */
list[0][1]++; list[0][1]++;
list[0][0]--; list[0][0]--;
if(indexliste == 1) {
list[0][1] = 1;
list[1][1] = LATCHB;
indexliste = 2;
}
} }
if(indexliste > 1) { if(indexliste > 1) {
for(i = 1; i < indexliste; i++) { for(i = 1; i < indexliste; i++) {
@ -893,3 +898,47 @@ int ean_128(struct zint_symbol *symbol, unsigned char source[])
return errornum; return errornum;
} }
int ean_14(struct zint_symbol *symbol, unsigned char source[])
{
/* EAN-14 - A version of EAN-128 */
int input_length, i, count, check_digit;
int error_number;
char ean128_equiv[20];
strcpy(ean128_equiv, "");
input_length = strlen(source);
if(input_length != 13) {
strcpy(symbol->errtxt, "error: input wrong length");
return ERROR_TOO_LONG;
}
error_number = is_sane(NESET, source);
if(error_number == ERROR_INVALID_DATA) {
strcpy(symbol->errtxt, "error: invalid character in data");
return error_number;
}
concat(ean128_equiv, "[01]");
concat(ean128_equiv, source);
count = 0;
for (i = input_length - 1; i >= 0; i--)
{
count += ctoi(source[i]);
if (!((i%2) == 1))
{
count += 2 * ctoi(source[i]);
}
}
check_digit = 10 - (count%10);
if (check_digit == 10) { check_digit = 0; }
ean128_equiv[17] = itoc(check_digit);
ean128_equiv[18] = '\0';
error_number = ean_128(symbol, ean128_equiv);
return error_number;
}