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Re-arranged odd-length Mode C block detection

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This commit is contained in:
hooper114 2009-07-08 17:04:58 +00:00
parent 91bf7f7bab
commit c94243a74d
1 changed files with 22 additions and 35 deletions
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53
backend/code128.c
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@ -588,7 +588,7 @@ int ean_128(struct zint_symbol *symbol, unsigned char source[])
char set[170], mode, last_set;
float glyph_count;
char dest[1000];
int separator_row, linkage_flag;
int separator_row, linkage_flag, c_count;
#ifndef _MSC_VER
char reduced[ustrlen(source)];
#else
@ -655,29 +655,7 @@ int ean_128(struct zint_symbol *symbol, unsigned char source[])
dxsmooth(&indexliste);
/* Resolve odd length LATCHC blocks */
if((list[1][0] == LATCHC) && ((list[0][0] % 2) == 1)) {
/* Rule 2 */
list[0][1]++;
list[0][0]--;
if(indexliste == 1) {
list[0][1] = 1;
list[1][1] = LATCHB;
indexliste = 2;
}
}
if(indexliste > 1) {
for(i = 1; i < indexliste; i++) {
if((list[1][i] == LATCHC) && ((list[0][i] % 2) == 1)) {
/* Rule 3b */
list[0][i - 1]++;
list[0][i]--;
}
}
}
/* Put set data into set[] */
read = 0;
for(i = 0; i < indexliste; i++) {
for(j = 0; j < list[0][i]; j++) {
@ -692,20 +670,29 @@ int ean_128(struct zint_symbol *symbol, unsigned char source[])
}
}
/* We have a problem with FNC1 in Code Set C to resolve */
/* Watch out for odd-length Mode C blocks */
c_count = 0;
for(i = 0; i < read; i++) {
if((set[i] == 'C') && (reduced[i] == '[')) {
int c_count;
if(set[i] == 'C') {
if(reduced[i] == '[') {
if(c_count % 2) {
set[i - c_count] = 'B';
c_count = 0;
} else {
c_count += 2;
}
} else {
c_count++;
}
} else {
if(c_count % 2)
set[i - c_count] = 'B';
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';
}
}
}
if(c_count % 2) {
set[i - c_count] = 'B';
}
/* Now we can calculate how long the barcode is going to be - and stop it from
being too long */