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Fixed 'FNC1 in Code Set C' bug in EAN128

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This commit is contained in:
hooper114 2009-01-11 18:28:52 +00:00
parent 31dce82f3b
commit b6ac39172b
1 changed files with 37 additions and 15 deletions
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52
backend/code128.c
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@ -187,7 +187,7 @@ void c128_set_c(unsigned char source_a, unsigned char source_b, char dest[], int
{ /* Translate Code 128 Set C characters into barcodes */ { /* Translate Code 128 Set C characters into barcodes */
/* This set handles numbers in a compressed form */ /* This set handles numbers in a compressed form */
int weight; int weight;
weight = (10 * ctoi(source_a)) + ctoi(source_b); weight = (10 * ctoi(source_a)) + ctoi(source_b);
concat(dest, C128Table[weight]); concat(dest, C128Table[weight]);
values[(*bar_chars)] = weight; values[(*bar_chars)] = weight;
@ -615,13 +615,7 @@ int ean_128(struct zint_symbol *symbol, unsigned char source[])
list[0][indexliste]++; list[0][indexliste]++;
indexchaine++; indexchaine++;
mode = parunmodd(reduced[indexchaine], 0x00); mode = parunmodd(reduced[indexchaine], 0x00);
if(reduced[indexchaine] == '[') { if(reduced[indexchaine] == '[') { mode = ABORC; }
if(indexchaine % 2 == 0) {
mode = ABORC;
} else {
mode = AORB;
}
}
} }
indexliste++; indexliste++;
} while (indexchaine < strlen(reduced)); } while (indexchaine < strlen(reduced));
@ -665,6 +659,21 @@ int ean_128(struct zint_symbol *symbol, unsigned char source[])
} }
} }
/* We have a problem with FNC1 in Code Set C to resolve */
for(i = 0; i < read; i++) {
if((set[i] == 'C') && (reduced[i] == '[')) {
int c_count;
c_count = 0;
for(j = 0; j < i; j++) {
if(set[j] == 'C') { c_count++; } else { c_count = 0; }
}
if((c_count % 2) == 1) {
set[i - 1] = 'B';
}
}
}
/* Now we can calculate how long the barcode is going to be - and stop it from /* Now we can calculate how long the barcode is going to be - and stop it from
being too long */ being too long */
last_set = ' '; last_set = ' ';
@ -736,7 +745,7 @@ int ean_128(struct zint_symbol *symbol, unsigned char source[])
} }
} }
if((set[i] == 'a') || (set[i] == 'b')) { if((set[read] == 'a') || (set[read] == 'b')) {
/* Insert shift character */ /* Insert shift character */
concat(dest, C128Table[98]); concat(dest, C128Table[98]);
values[bar_characters] = 98; values[bar_characters] = 98;
@ -746,12 +755,16 @@ int ean_128(struct zint_symbol *symbol, unsigned char source[])
if(reduced[read] != '[') { if(reduced[read] != '[') {
switch(set[read]) switch(set[read])
{ /* Encode data characters */ { /* Encode data characters */
case 'A': c128_set_a(reduced[read], dest, values, &bar_characters, 0x00); case 'A':
read++; case 'a':
break; c128_set_a(reduced[read], dest, values, &bar_characters, 0x00);
case 'B': c128_set_b(reduced[read], dest, values, &bar_characters); read++;
read++; break;
break; case 'B':
case 'b':
c128_set_b(reduced[read], dest, values, &bar_characters);
read++;
break;
case 'C': c128_set_c(reduced[read], reduced[read + 1], dest, values, &bar_characters); case 'C': c128_set_c(reduced[read], reduced[read + 1], dest, values, &bar_characters);
read += 2; read += 2;
break; break;
@ -795,6 +808,11 @@ int ean_128(struct zint_symbol *symbol, unsigned char source[])
bar_characters++; bar_characters++;
} }
/*for(i = 0; i < bar_characters; i++) {
printf("[%d] ", values[i]);
}
printf("\n");*/
/* check digit calculation */ /* check digit calculation */
total_sum = 0; total_sum = 0;
for(i = 0; i < bar_characters; i++) for(i = 0; i < bar_characters; i++)
@ -807,9 +825,13 @@ int ean_128(struct zint_symbol *symbol, unsigned char source[])
total_sum += values[i]; total_sum += values[i];
} }
concat(dest, C128Table[total_sum%103]); concat(dest, C128Table[total_sum%103]);
values[bar_characters] = total_sum % 103;
bar_characters++;
/* Stop character */ /* Stop character */
concat(dest, C128Table[106]); concat(dest, C128Table[106]);
values[bar_characters] = 106;
bar_characters++;
expand(symbol, dest); expand(symbol, dest);
/* Add the separator pattern for composite symbols */ /* Add the separator pattern for composite symbols */