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Add leading zeroes rather than fail

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This commit is contained in:
hooper114 2008-10-12 21:05:53 +00:00
parent 0400d9d280
commit 3db0fa77e4
5 changed files with 140 additions and 80 deletions
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78
backend/2of5.c
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@ -241,16 +241,17 @@ int interleaved_two_of_five(struct zint_symbol *symbol, unsigned char source[])
int itf14(struct zint_symbol *symbol, unsigned char source[])
{
int i, error_number, h;
int i, error_number, h, zeroes;
unsigned int count, check_digit;
char localstr[15];
error_number = 0;
count = 0;
h = ustrlen(source);
if(h != 13) {
strcpy(symbol->errtxt, "Input wrong length [891]");
if(h > 13) {
strcpy(symbol->errtxt, "Input too long [891]");
return ERROR_TOO_LONG;
}
@ -260,23 +261,31 @@ int itf14(struct zint_symbol *symbol, unsigned char source[])
return error_number;
}
/* Add leading zeros as required */
strcpy(localstr, "");
zeroes = 13 - ustrlen(source);
for(i = 0; i < zeroes; i++) {
concat(localstr, "0");
}
concat(localstr, (char *)source);
/* Calculate the check digit - the same method used for EAN-13 */
for (i = h - 1; i >= 0; i--)
{
count += ctoi(source[i]);
count += ctoi(localstr[i]);
if (!((i%2) == 0))
{
count += 2 * ctoi(source[i]);
count += 2 * ctoi(localstr[i]);
}
}
check_digit = 10 - (count%10);
if (check_digit == 10) { check_digit = 0; }
source[h] = itoc(check_digit);
source[h + 1] = '\0';
error_number = interleaved_two_of_five(symbol, source);
strcpy(symbol->text, (char*)source);
localstr[h] = itoc(check_digit);
localstr[h + 1] = '\0';
error_number = interleaved_two_of_five(symbol, (unsigned char *)localstr);
strcpy(symbol->text, localstr);
return error_number;
}
@ -284,11 +293,13 @@ int dpleit(struct zint_symbol *symbol, unsigned char source[])
{ /* Deutshe Post Leitcode */
int i, error_number;
unsigned int h, count, check_digit;
char localstr[15], checkstr[3];
int zeroes;
error_number = 0;
count = 0;
h = ustrlen(source);
if(h != 13) {
if(h > 13) {
strcpy(symbol->errtxt, "Input wrong length [211]");
return ERROR_TOO_LONG;
}
@ -298,32 +309,40 @@ int dpleit(struct zint_symbol *symbol, unsigned char source[])
return error_number;
}
for (i = h - 1; i >= 0; i--)
strcpy(localstr, "");
zeroes = 13 - h;
for(i = 0; i < zeroes; i++)
concat(localstr, "0");
concat(localstr, (char *)source);
for (i = 12; i >= 0; i--)
{
count += 4 * ctoi(source[i]);
count += 4 * ctoi(localstr[i]);
if (!((i%2) == 0))
{
count += 5 * ctoi(source[i]);
count += 5 * ctoi(localstr[i]);
}
}
check_digit = 10 - (count%10);
if (check_digit == 10) { check_digit = 0; }
source[h] = itoc(check_digit);
source[h + 1] = '\0';
error_number = interleaved_two_of_five(symbol, source);
strcpy(symbol->text, (char*)source);
checkstr[0] = itoc(check_digit);
checkstr[1] = '\0';
strcpy(localstr, checkstr);
error_number = interleaved_two_of_five(symbol, (unsigned char *)localstr);
strcpy(symbol->text, localstr);
return error_number;
}
int dpident(struct zint_symbol *symbol, unsigned char source[])
{ /* Deutsche Post Identcode */
int i, error_number;
int i, error_number, zeroes;
unsigned int h, count, check_digit;
char localstr[13], checkstr[3];
count = 0;
h = ustrlen(source);
if(h != 11) {
if(h > 11) {
strcpy(symbol->errtxt, "Input wrong length [221]");
return ERROR_TOO_LONG;
}
@ -333,20 +352,27 @@ int dpident(struct zint_symbol *symbol, unsigned char source[])
return error_number;
}
for (i = h - 1; i >= 0; i--)
strcpy(localstr, "");
zeroes = 11 - h;
for(i = 0; i < zeroes; i++)
strcpy(localstr, "0");
strcpy(localstr, (char *)source);
for (i = 10; i >= 0; i--)
{
count += 4 * ctoi(source[i]);
count += 4 * ctoi(localstr[i]);
if (!((i%2) == 0))
{
count += 5 * ctoi(source[i]);
count += 5 * ctoi(localstr[i]);
}
}
check_digit = 10 - (count%10);
if (check_digit == 10) { check_digit = 0; }
source[h] = itoc(check_digit);
source[h + 1] = '\0';
error_number = interleaved_two_of_five(symbol, source);
strcpy(symbol->text, (char*)source);
checkstr[0] = itoc(check_digit);
checkstr[1] = '\0';
strcpy(localstr, checkstr);
error_number = interleaved_two_of_five(symbol, (unsigned char *)localstr);
strcpy(symbol->text, localstr);
return error_number;
}