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DATAMATRIX: re [e9b8ee] add dm_text_sp_cnt() & dm_switch_mode() to get around

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exiting B256 if have less than break-even sequence of TEXT chars;
  rename some vars to be more consistent
This commit is contained in:
gitlost 2021-11-16 18:37:51 +00:00
parent e9b8ee9c1b
commit 96cf5aa668
3 changed files with 128 additions and 76 deletions
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93
backend/dmatrix.c
View File

@ -232,15 +232,15 @@ static int dm_isedifact(const unsigned char input, const int gs1) {
return (input >= ' ' && input <= '^') && (!gs1 || input != '['); /* Can't encode GS1 FNC1/GS in EDIFACT */ return (input >= ' ' && input <= '^') && (!gs1 || input != '['); /* Can't encode GS1 FNC1/GS in EDIFACT */
} }
static int dm_p_r_6_2_1(const unsigned char inputData[], const int position, const int sourcelen) { static int dm_p_r_6_2_1(const unsigned char source[], const int length, const int sp) {
/* Annex P section (r)(6)(ii)(I) /* Annex P section (r)(6)(ii)(I)
"If one of the three X12 terminator/separator characters first "If one of the three X12 terminator/separator characters first
occurs in the yet to be processed data before a non-X12 character..." occurs in the yet to be processed data before a non-X12 character..."
*/ */
int i; int i;
for (i = position; i < sourcelen && dm_isX12(inputData[i]); i++) { for (i = sp; i < length && dm_isX12(source[i]); i++) {
if (inputData[i] == 13 || inputData[i] == '*' || inputData[i] == '>') { if (source[i] == 13 || source[i] == '*' || source[i] == '>') {
return 1; return 1;
} }
} }
@ -248,6 +248,20 @@ static int dm_p_r_6_2_1(const unsigned char inputData[], const int position, con
return 0; return 0;
} }
/* Count number of TEXT characters around `sp` between `position` and `length`
- helper to avoid exiting from Base 256 too early if have series of TEXT characters */
static int dm_text_sp_cnt(const unsigned char source[], const int position, const int length, const int sp) {
int i;
int cnt = 0;
/* Count from `sp` forward */
for (i = sp; i < length && dm_istext(source[i]); i++, cnt++);
/* Count backwards from `sp` */
for (i = sp - 1; i >= position && dm_istext(source[i]); i--, cnt++);
return cnt;
}
/* Character counts are multiplied by this, so as to be whole integer divisible by 2, 3 and 4 */ /* Character counts are multiplied by this, so as to be whole integer divisible by 2, 3 and 4 */
#define DM_MULT 12 #define DM_MULT 12
@ -269,7 +283,7 @@ static int dm_p_r_6_2_1(const unsigned char inputData[], const int position, con
#define DM_MULT_CEIL(n) ((((n) + DM_MULT_MINUS_1) / DM_MULT) * DM_MULT) #define DM_MULT_CEIL(n) ((((n) + DM_MULT_MINUS_1) / DM_MULT) * DM_MULT)
/* 'look ahead test' from Annex P */ /* 'look ahead test' from Annex P */
static int dm_look_ahead_test(const unsigned char inputData[], const int sourcelen, const int position, static int dm_look_ahead_test(const unsigned char source[], const int length, const int position,
const int current_mode, const int mode_arg, const int gs1, const int debug_print) { const int current_mode, const int mode_arg, const int gs1, const int debug_print) {
int ascii_count, c40_count, text_count, x12_count, edf_count, b256_count; int ascii_count, c40_count, text_count, x12_count, edf_count, b256_count;
int ascii_rnded, c40_rnded, text_rnded, x12_rnded, edf_rnded, b256_rnded; int ascii_rnded, c40_rnded, text_rnded, x12_rnded, edf_rnded, b256_rnded;
@ -307,8 +321,8 @@ static int dm_look_ahead_test(const unsigned char inputData[], const int sourcel
break; break;
} }
for (sp = position; sp < sourcelen; sp++) { for (sp = position; sp < length; sp++) {
unsigned char c = inputData[sp]; unsigned char c = source[sp];
int is_extended = c & 0x80; int is_extended = c & 0x80;
/* ascii ... step (l) */ /* ascii ... step (l) */
@ -407,8 +421,15 @@ static int dm_look_ahead_test(const unsigned char inputData[], const int sourcel
cnt_1 = text_count + DM_MULT_1; cnt_1 = text_count + DM_MULT_1;
if (cnt_1 < ascii_count && cnt_1 < b256_count && cnt_1 < edf_count && cnt_1 < x12_count if (cnt_1 < ascii_count && cnt_1 < b256_count && cnt_1 < edf_count && cnt_1 < x12_count
&& cnt_1 < c40_count) { && cnt_1 < c40_count) {
if (debug_print) printf("TEX->"); /* Adjusted to avoid early exit from Base 256 if have less than break-even sequence of TEXT chars */
return DM_TEXT; /* step (r)(4) */ if (current_mode == DM_BASE256 && position + 6 < length
&& dm_text_sp_cnt(source, position, length, sp) >= 12) {
if (debug_print) printf("TEX->");
return DM_TEXT; /* step (r)(4) */
} else {
if (debug_print) printf("TEX->");
return DM_TEXT; /* step (r)(4) */
}
} }
cnt_1 = x12_count + DM_MULT_1; cnt_1 = x12_count + DM_MULT_1;
if (cnt_1 < ascii_count && cnt_1 < b256_count && cnt_1 < edf_count && cnt_1 < text_count if (cnt_1 < ascii_count && cnt_1 < b256_count && cnt_1 < edf_count && cnt_1 < text_count
@ -423,7 +444,7 @@ static int dm_look_ahead_test(const unsigned char inputData[], const int sourcel
return DM_C40; /* step (r)(6)(i) */ return DM_C40; /* step (r)(6)(i) */
} }
if (c40_count == x12_count) { if (c40_count == x12_count) {
if (dm_p_r_6_2_1(inputData, sp, sourcelen) == 1) { if (dm_p_r_6_2_1(source, length, sp) == 1) {
if (debug_print) printf("X12->"); if (debug_print) printf("X12->");
return DM_X12; /* step (r)(6)(ii)(I) */ return DM_X12; /* step (r)(6)(ii)(I) */
} }
@ -632,6 +653,35 @@ STATIC_UNLESS_ZINT_TEST int dm_update_b256_field_length(unsigned char target[],
return tp; return tp;
} }
/* Switch from ASCII or Base 256 to another mode */
STATIC_UNLESS_ZINT_TEST int dm_switch_mode(const int next_mode, unsigned char target[], int tp, int *b256_start,
const int debug_print) {
switch (next_mode) {
case DM_ASCII:
if (debug_print) printf("ASC ");
break;
case DM_C40: target[tp++] = 230;
if (debug_print) printf("C40 ");
break;
case DM_TEXT: target[tp++] = 239;
if (debug_print) printf("TEX ");
break;
case DM_X12: target[tp++] = 238;
if (debug_print) printf("X12 ");
break;
case DM_EDIFACT: target[tp++] = 240;
if (debug_print) printf("EDI ");
break;
case DM_BASE256: target[tp++] = 231;
*b256_start = tp;
target[tp++] = 0; /* Byte count holder (may be expanded to 2 codewords) */
if (debug_print) printf("BAS ");
break;
}
return tp;
}
/* Encodes data using ASCII, C40, Text, X12, EDIFACT or Base 256 modes as appropriate /* Encodes data using ASCII, C40, Text, X12, EDIFACT or Base 256 modes as appropriate
Supports encoding FNC1 in supporting systems */ Supports encoding FNC1 in supporting systems */
static int dm200encode(struct zint_symbol *symbol, const unsigned char source[], unsigned char target[], static int dm200encode(struct zint_symbol *symbol, const unsigned char source[], unsigned char target[],
@ -796,25 +846,7 @@ static int dm200encode(struct zint_symbol *symbol, const unsigned char source[],
next_mode = dm_look_ahead_test(source, inputlen, sp, current_mode, 0, gs1, debug_print); next_mode = dm_look_ahead_test(source, inputlen, sp, current_mode, 0, gs1, debug_print);
if (next_mode != DM_ASCII) { if (next_mode != DM_ASCII) {
switch (next_mode) { tp = dm_switch_mode(next_mode, target, tp, &b256_start, debug_print);
case DM_C40: target[tp++] = 230;
if (debug_print) printf("C40 ");
break;
case DM_TEXT: target[tp++] = 239;
if (debug_print) printf("TEX ");
break;
case DM_X12: target[tp++] = 238;
if (debug_print) printf("X12 ");
break;
case DM_EDIFACT: target[tp++] = 240;
if (debug_print) printf("EDI ");
break;
case DM_BASE256: target[tp++] = 231;
b256_start = tp;
target[tp++] = 0; /* Byte count holder (may be expanded to 2 codewords) */
if (debug_print) printf("BAS ");
break;
}
not_first = 0; not_first = 0;
} else { } else {
if (source[sp] & 0x80) { if (source[sp] & 0x80) {
@ -988,8 +1020,9 @@ static int dm200encode(struct zint_symbol *symbol, const unsigned char source[],
const int prn = ((149 * (i + 1)) % 255) + 1; const int prn = ((149 * (i + 1)) % 255) + 1;
target[i] = (unsigned char) ((target[i] + prn) & 0xFF); target[i] = (unsigned char) ((target[i] + prn) & 0xFF);
} }
next_mode = DM_ASCII; /* We switch directly here to avoid flipping back to Base 256 due to `dm_text_sp_cnt()` */
if (debug_print) printf("ASC "); tp = dm_switch_mode(next_mode, target, tp, &b256_start, debug_print);
not_first = 0;
} else { } else {
if (gs1 == 2 && source[sp] == '[') { if (gs1 == 2 && source[sp] == '[') {
target[tp++] = 29; /* GS */ target[tp++] = 29; /* GS */

34
backend/tests/test_dmatrix.c
View File

@ -2554,7 +2554,7 @@ static void test_minimize(int index, int debug) {
/* 11*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200AAAAAAAAAAAA", -1, 0, 2, "C40 except last ASC" }, /* 11*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200AAAAAAAAAAAA", -1, 0, 2, "C40 except last ASC" },
/* 12*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200AAAAAAAAAAAAA", -1, 0, 2, "C40 except last 2 ASC" }, /* 12*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200AAAAAAAAAAAAA", -1, 0, 2, "C40 except last 2 ASC" },
/* 13*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\2009", -1, 0, 0, "ASC last 1" }, /* 13*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\2009", -1, 0, 0, "ASC last 1" },
/* 14*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\20099", -1, 0, -1, "Switches too early to ASC (EOD), for last 3" }, /* 14*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\20099", -1, 0, -1, "Worse, switches too early to ASC (EOD), for last 3" },
/* 15*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200999", -1, 0, 0, "" }, /* 15*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200999", -1, 0, 0, "" },
/* 16*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\2009999", -1, 0, 0, "" }, /* 16*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\2009999", -1, 0, 0, "" },
/* 17*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\20099999", -1, 0, 0, "" }, /* 17*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\20099999", -1, 0, 0, "" },
@ -2637,19 +2637,19 @@ static void test_minimize(int index, int debug) {
/* 94*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaa\200\200\200", -1, 0, 0, "BAS" }, /* 94*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaa\200\200\200", -1, 0, 0, "BAS" },
/* 95*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaa\200\200\200", -1, 0, 0, "BAS" }, /* 95*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaa\200\200\200", -1, 0, 0, "BAS" },
/* 96*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaaa\200\200\200", -1, 0, 0, "BAS" }, /* 96*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaaa\200\200\200", -1, 0, 0, "BAS" },
/* 97*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaaaa\200\200\200", -1, 0, -2, "7 a's, worse - switches to TEX" }, /* 97*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaaaa\200\200\200", -1, 0, 0, "7 a's, was worse before dm_text_sp_cnt()" },
/* 98*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaaaa\200\200", -1, 0, -2, "7 a's end 2 extended, worse - switches to TEX" }, /* 98*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaaaa\200\200", -1, 0, 0, "7 a's end 2 extended, was worse before dm_text_sp_cnt()" },
/* 99*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaaaa\200", -1, 0, -1, "7 a's end 1 extended, worse - switches to TEX" }, /* 99*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaaaa\200", -1, 0, 0, "7 a's end 1 extended, was worse before dm_text_sp_cnt()" },
/*100*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaaaa", -1, 0, 0, "7 a's end 0 extended, switches to TEX but same codeword count" }, /*100*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaaaa", -1, 0, 0, "7 a's end 0 extended, switches to TEX but same codeword count" },
/*101*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200\200aaaaaaa\200\200", -1, 0, -2, "7 a's, worse - switches to TEX" }, /*101*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200\200aaaaaaa\200\200", -1, 0, 0, "7 a's, was worse before dm_text_sp_cnt()" },
/*102*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200\200\200aaaaaaa\200\200", -1, 0, -2, "7 a's, worse - switches to TEX" }, /*102*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200\200\200aaaaaaa\200\200", -1, 0, 0, "7 a's, was worse before dm_text_sp_cnt()" },
/*103*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaaaa\200\200\200\200", -1, 0, -2, "7 a's end 4 extended, worse - switches to TEX" }, /*103*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaaaa\200\200\200\200", -1, 0, 0, "7 a's end 4 extended, was worse before dm_text_sp_cnt()" },
/*104*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaaaa\200\200\200\200\200", -1, 0, -2, "7 a's end 5 extended, worse - switches to TEX" }, /*104*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaaaa\200\200\200\200\200", -1, 0, 0, "7 a's end 5 extended, was worse before dm_text_sp_cnt()" },
/*105*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaaaaa\200\200", -1, 0, -2, "8 a's end 2 extended, worse - switches to TEX" }, /*105*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaaaaa\200\200", -1, 0, 0, "8 a's end 2 extended, was worse before dm_text_sp_cnt()" },
/*106*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaaaaa\200\200\200", -1, 0, -2, "8 a's, worse - switches to TEX" }, /*106*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaaaaa\200\200\200", -1, 0, 0, "8 a's, was worse before dm_text_sp_cnt()" },
/*107*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaaaaaa\200\200\200", -1, 0, -1, "9 a's, worse - switches to TEX" }, /*107*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaaaaaa\200\200\200", -1, 0, 0, "9 a's, was worse before dm_text_sp_cnt()" },
/*108*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaaaaaaa\200\200\200", -1, 0, -1, "10 a's, worse - switches to TEX" }, /*108*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaaaaaaa\200\200\200", -1, 0, 0, "10 a's, was worse before dm_text_sp_cnt()" },
/*109*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaaaaaaaa\200\200\200", -1, 0, -1, "11 a's, worse - switches to TEX" }, /*109*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaaaaaaaa\200\200\200", -1, 0, 0, "11 a's, was worse before dm_text_sp_cnt()" },
/*110*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaaaaaaaaa\200\200\200", -1, 0, 0, "12 a's, switches to TEX but same codeword count" }, /*110*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaaaaaaaaa\200\200\200", -1, 0, 0, "12 a's, switches to TEX but same codeword count" },
/*111*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaaaaaaaaaa\200\200\200", -1, 0, 0, "13 a's, switches to TEX but same codeword count" }, /*111*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaaaaaaaaaa\200\200\200", -1, 0, 0, "13 a's, switches to TEX but same codeword count" },
/*112*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaaaaaaaaaaa\200\200\200", -1, 0, 0, "14 a's, switches to TEX but same codeword count" }, /*112*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaaaaaaaaaaa\200\200\200", -1, 0, 0, "14 a's, switches to TEX but same codeword count" },
@ -2663,11 +2663,11 @@ static void test_minimize(int index, int debug) {
/*120*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200Aaaaaaa\200\200\200", -1, 0, 0, "" }, /*120*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200Aaaaaaa\200\200\200", -1, 0, 0, "" },
/*121*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaAaaa\200\200\200", -1, 0, 0, "" }, /*121*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaAaaa\200\200\200", -1, 0, 0, "" },
/*122*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaaaA\200\200\200", -1, 0, 0, "" }, /*122*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaaaA\200\200\200", -1, 0, 0, "" },
/*123*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200Aaaaaaaa\200\200\200", -1, 0, -2, "" }, /*123*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200Aaaaaaaa\200\200\200", -1, 0, 0, "" },
/*124*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaAaaa\200\200\200", -1, 0, 0, "" }, /*124*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaAaaa\200\200\200", -1, 0, 0, "" },
/*125*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaaaAa\200\200\200", -1, 0, 0, "" }, /*125*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaaaAa\200\200\200", -1, 0, 0, "" },
/*126*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaaaaA\200\200\200", -1, 0, -2, "" }, /*126*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaaaaA\200\200\200", -1, 0, 0, "Was worse before dm_text_sp_cnt()" },
/*127*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaaaaAa\200\200\200", -1, 0, -2, "" }, /*127*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200aaaaaaaAa\200\200\200", -1, 0, 0, "Was worse before dm_text_sp_cnt()" },
/*128*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200>\200\200\200", -1, 0, 0, "BAS" }, /*128*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200>\200\200\200", -1, 0, 0, "BAS" },
/*129*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200>>\200\200\200", -1, 0, 0, "BAS" }, /*129*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200>>\200\200\200", -1, 0, 0, "BAS" },
/*130*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200>>>\200\200\200", -1, 0, 0, "BAS" }, /*130*/ { BARCODE_DATAMATRIX, -1, -1, -1, "\200\200\200>>>\200\200\200", -1, 0, 0, "BAS" },
@ -2701,6 +2701,8 @@ static void test_minimize(int index, int debug) {
/*158*/ { BARCODE_DATAMATRIX, GS1_MODE, GS1_GS_SEPARATOR, -1, "\200\200\200[\200\200[\200\200", -1, 0, 0, "" }, /*158*/ { BARCODE_DATAMATRIX, GS1_MODE, GS1_GS_SEPARATOR, -1, "\200\200\200[\200\200[\200\200", -1, 0, 0, "" },
/*159*/ { BARCODE_DATAMATRIX, GS1_MODE, -1, -1, "\200\200\200\200[\200\200\200[\200\200", -1, 0, -1, "Stays in ASC after 1st FNC1" }, /*159*/ { BARCODE_DATAMATRIX, GS1_MODE, -1, -1, "\200\200\200\200[\200\200\200[\200\200", -1, 0, -1, "Stays in ASC after 1st FNC1" },
/*160*/ { BARCODE_DATAMATRIX, GS1_MODE, GS1_GS_SEPARATOR, -1, "\200\200\200\200[\200\200\200[\200\200", -1, 0, 0, "" }, /*160*/ { BARCODE_DATAMATRIX, GS1_MODE, GS1_GS_SEPARATOR, -1, "\200\200\200\200[\200\200\200[\200\200", -1, 0, 0, "" },
/*161*/ { BARCODE_DATAMATRIX, -1, -1, -1, "https://example.com/01/09506000134369", -1, 0, 0, "" },
/*162*/ { BARCODE_DATAMATRIX, -1, -1, -1, "abcdefghi1234FGHIJKLMNabc@@@@@@@@@é", -1, 0, 0, "" },
}; };
int data_size = ARRAY_SIZE(data); int data_size = ARRAY_SIZE(data);
int i, length, ret; int i, length, ret;

77
backend/tests/test_dmatrix_variant.h
View File

@ -66,15 +66,15 @@ static int dm_isedifact(const unsigned char input, const int gs1) {
return (input >= ' ' && input <= '^') && (!gs1 || input != '['); /* Can't encode GS1 FNC1/GS in EDIFACT */ return (input >= ' ' && input <= '^') && (!gs1 || input != '['); /* Can't encode GS1 FNC1/GS in EDIFACT */
} }
static int dm_p_r_6_2_1(const unsigned char inputData[], const int position, const int sourcelen) { static int dm_p_r_6_2_1(const unsigned char source[], const int length, const int sp) {
/* Annex P section (r)(6)(ii)(I) /* Annex P section (r)(6)(ii)(I)
"If one of the three X12 terminator/separator characters first "If one of the three X12 terminator/separator characters first
occurs in the yet to be processed data before a non-X12 character..." occurs in the yet to be processed data before a non-X12 character..."
*/ */
int i; int i;
for (i = position; i < sourcelen && dm_isX12(inputData[i]); i++) { for (i = sp; i < length && dm_isX12(source[i]); i++) {
if (inputData[i] == 13 || inputData[i] == '*' || inputData[i] == '>') { if (source[i] == 13 || source[i] == '*' || source[i] == '>') {
return 1; return 1;
} }
} }
@ -82,6 +82,20 @@ static int dm_p_r_6_2_1(const unsigned char inputData[], const int position, con
return 0; return 0;
} }
/* Count number of TEXT characters around `sp` between `position` and `length`
- helper to avoid exiting from Base 256 too early if have series of TEXT characters */
static int dm_text_sp_cnt(const unsigned char source[], const int position, const int length, const int sp) {
int i;
int cnt = 0;
/* Count from `sp` forward */
for (i = sp; i < length && dm_istext(source[i]); i++, cnt++);
/* Count backwards from `sp` */
for (i = sp - 1; i >= position && dm_istext(source[i]); i--, cnt++);
return cnt;
}
#define DM_MULT 12 #define DM_MULT 12
#define DM_MULT_1_DIV_2 6 #define DM_MULT_1_DIV_2 6
@ -103,7 +117,7 @@ static int dm_p_r_6_2_1(const unsigned char inputData[], const int position, con
#define DM_MULT_MINUS_1 11 #define DM_MULT_MINUS_1 11
#define DM_MULT_CEIL(n) ((((n) + DM_MULT_MINUS_1) / DM_MULT) * DM_MULT) #define DM_MULT_CEIL(n) ((((n) + DM_MULT_MINUS_1) / DM_MULT) * DM_MULT)
static int dm_look_ahead_test_variant(const unsigned char inputData[], const int sourcelen, const int position, static int dm_look_ahead_test_variant(const unsigned char source[], const int length, const int position,
const int current_mode, const int mode_arg, const int gs1, const int debug_print, const int variant) { const int current_mode, const int mode_arg, const int gs1, const int debug_print, const int variant) {
int ascii_count, c40_count, text_count, x12_count, edf_count, b256_count; int ascii_count, c40_count, text_count, x12_count, edf_count, b256_count;
int ascii_rnded, c40_rnded, text_rnded, x12_rnded, edf_rnded, b256_rnded; int ascii_rnded, c40_rnded, text_rnded, x12_rnded, edf_rnded, b256_rnded;
@ -160,8 +174,8 @@ static int dm_look_ahead_test_variant(const unsigned char inputData[], const int
break; break;
} }
for (sp = position; sp < sourcelen; sp++) { for (sp = position; sp < length; sp++) {
unsigned char c = inputData[sp]; unsigned char c = source[sp];
int is_extended = c & 0x80; int is_extended = c & 0x80;
/* ascii ... step (l) */ /* ascii ... step (l) */
@ -271,8 +285,22 @@ static int dm_look_ahead_test_variant(const unsigned char inputData[], const int
cnt_1 = text_count + DM_MULT_1; cnt_1 = text_count + DM_MULT_1;
if (cnt_1 < ascii_count && cnt_1 < b256_count && cnt_1 < edf_count && cnt_1 < x12_count if (cnt_1 < ascii_count && cnt_1 < b256_count && cnt_1 < edf_count && cnt_1 < x12_count
&& cnt_1 < c40_count) { && cnt_1 < c40_count) {
if (debug_print) printf("TEX->"); if (variant == 1) {
return DM_TEXT; /* step (r)(4) */ if (current_mode == DM_BASE256 && position + 6 < length) {
int text_sp_cnt = dm_text_sp_cnt(source, position, length, sp);
if (debug_print) printf("text_sp_cnt %d\n", text_sp_cnt);
if (text_sp_cnt >= 12) {
if (debug_print) printf("TEX->");
return DM_TEXT; /* step (r)(4) */
}
} else {
if (debug_print) printf("TEX->");
return DM_TEXT; /* step (r)(4) */
}
} else {
if (debug_print) printf("TEX->");
return DM_TEXT; /* step (r)(4) */
}
} }
cnt_1 = x12_count + DM_MULT_1; cnt_1 = x12_count + DM_MULT_1;
if (cnt_1 < ascii_count && cnt_1 < b256_count && cnt_1 < edf_count && cnt_1 < text_count if (cnt_1 < ascii_count && cnt_1 < b256_count && cnt_1 < edf_count && cnt_1 < text_count
@ -287,7 +315,7 @@ static int dm_look_ahead_test_variant(const unsigned char inputData[], const int
return DM_C40; /* step (r)(6)(i) */ return DM_C40; /* step (r)(6)(i) */
} }
if (c40_count == x12_count) { if (c40_count == x12_count) {
if (dm_p_r_6_2_1(inputData, sp, sourcelen) == 1) { if (dm_p_r_6_2_1(source, length, sp) == 1) {
if (debug_print) printf("X12->"); if (debug_print) printf("X12->");
return DM_X12; /* step (r)(6)(ii)(I) */ return DM_X12; /* step (r)(6)(ii)(I) */
} }
@ -438,6 +466,8 @@ STATIC_UNLESS_ZINT_TEST int dm_get_symbolsize(struct zint_symbol *symbol, const
STATIC_UNLESS_ZINT_TEST int dm_codewords_remaining(struct zint_symbol *symbol, const int tp, const int process_p); STATIC_UNLESS_ZINT_TEST int dm_codewords_remaining(struct zint_symbol *symbol, const int tp, const int process_p);
STATIC_UNLESS_ZINT_TEST int dm_c40text_cnt(const int current_mode, const int gs1, unsigned char input); STATIC_UNLESS_ZINT_TEST int dm_c40text_cnt(const int current_mode, const int gs1, unsigned char input);
STATIC_UNLESS_ZINT_TEST int dm_update_b256_field_length(unsigned char target[], int tp, int b256_start); STATIC_UNLESS_ZINT_TEST int dm_update_b256_field_length(unsigned char target[], int tp, int b256_start);
STATIC_UNLESS_ZINT_TEST int dm_switch_mode(const int next_mode, unsigned char target[], int tp, int *b256_start,
const int debug_print);
/* Version of dm200encode() to check variant look ahead parameters */ /* Version of dm200encode() to check variant look ahead parameters */
static int dm200encode_variant(struct zint_symbol *symbol, const unsigned char source[], unsigned char target[], static int dm200encode_variant(struct zint_symbol *symbol, const unsigned char source[], unsigned char target[],
@ -602,25 +632,7 @@ static int dm200encode_variant(struct zint_symbol *symbol, const unsigned char s
next_mode = dm_look_ahead_test_variant(source, inputlen, sp, current_mode, 0, gs1, debug_print, variant); next_mode = dm_look_ahead_test_variant(source, inputlen, sp, current_mode, 0, gs1, debug_print, variant);
if (next_mode != DM_ASCII) { if (next_mode != DM_ASCII) {
switch (next_mode) { tp = dm_switch_mode(next_mode, target, tp, &b256_start, debug_print);
case DM_C40: target[tp++] = 230;
if (debug_print) printf("C40 ");
break;
case DM_TEXT: target[tp++] = 239;
if (debug_print) printf("TEX ");
break;
case DM_X12: target[tp++] = 238;
if (debug_print) printf("X12 ");
break;
case DM_EDIFACT: target[tp++] = 240;
if (debug_print) printf("EDI ");
break;
case DM_BASE256: target[tp++] = 231;
b256_start = tp;
target[tp++] = 0; /* Byte count holder (may be expanded to 2 codewords) */
if (debug_print) printf("BAS ");
break;
}
not_first = 0; not_first = 0;
} else { } else {
if (source[sp] & 0x80) { if (source[sp] & 0x80) {
@ -794,8 +806,13 @@ static int dm200encode_variant(struct zint_symbol *symbol, const unsigned char s
const int prn = ((149 * (i + 1)) % 255) + 1; const int prn = ((149 * (i + 1)) % 255) + 1;
target[i] = (unsigned char) ((target[i] + prn) & 0xFF); target[i] = (unsigned char) ((target[i] + prn) & 0xFF);
} }
next_mode = DM_ASCII; if (variant == 1) {
if (debug_print) printf("ASC "); tp = dm_switch_mode(next_mode, target, tp, &b256_start, debug_print);
not_first = 0;
} else {
next_mode = DM_ASCII;
if (debug_print) printf("ASC ");
}
} else { } else {
if (gs1 == 2 && source[sp] == '[') { if (gs1 == 2 && source[sp] == '[') {
target[tp++] = 29; /* GS */ target[tp++] = 29; /* GS */