mirror of
https://github.com/woo-j/zint.git
synced 2024-12-26 07:21:31 +03:00
f17f10fa7c
Patch by Oxy (Michael) <virtual_worlds@gmx.de> Ref: https://sourceforge.net/p/zint/mailman/message/34896811/
336 lines
12 KiB
C
336 lines
12 KiB
C
/* code49.c - Handles Code 49 */
|
|
|
|
/*
|
|
libzint - the open source barcode library
|
|
Copyright (C) 2009-2016 Robin Stuart <rstuart114@gmail.com>
|
|
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions
|
|
are met:
|
|
|
|
1. Redistributions of source code must retain the above copyright
|
|
notice, this list of conditions and the following disclaimer.
|
|
2. Redistributions in binary form must reproduce the above copyright
|
|
notice, this list of conditions and the following disclaimer in the
|
|
documentation and/or other materials provided with the distribution.
|
|
3. Neither the name of the project nor the names of its contributors
|
|
may be used to endorse or promote products derived from this software
|
|
without specific prior written permission.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
|
|
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
|
|
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <string.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include "common.h"
|
|
#include "code49.h"
|
|
|
|
#define INSET "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. $/+%!&*"
|
|
|
|
/* "!" represents Shift 1 and "&" represents Shift 2, "*" represents FNC1 */
|
|
|
|
int code_49(struct zint_symbol *symbol, unsigned char source[], const int length) {
|
|
int i, j, rows, M, x_count, y_count, z_count, posn_val, local_value;
|
|
char intermediate[170] = "";
|
|
int codewords[170], codeword_count;
|
|
int c_grid[8][8]; /* Refers to table 3 */
|
|
int w_grid[8][4]; /* Refets to table 2 */
|
|
int pad_count = 0;
|
|
char pattern[40];
|
|
int gs1;
|
|
size_t h;
|
|
|
|
if (length > 81) {
|
|
strcpy(symbol->errtxt, "Input too long");
|
|
return ZINT_ERROR_TOO_LONG;
|
|
}
|
|
if (symbol->input_mode == GS1_MODE) {
|
|
gs1 = 1;
|
|
strcpy(intermediate, "*"); /* FNC1 */
|
|
} else {
|
|
gs1 = 0;
|
|
}
|
|
|
|
for (i = 0; i < length; i++) {
|
|
if (source[i] > 127) {
|
|
strcpy(symbol->errtxt, "Invalid characters in input data");
|
|
return ZINT_ERROR_INVALID_DATA;
|
|
}
|
|
if (gs1 && (source[i] == '['))
|
|
strcat(intermediate, "*"); /* FNC1 */
|
|
else
|
|
strcat(intermediate, c49_table7[source[i]]);
|
|
}
|
|
|
|
codeword_count = 0;
|
|
i = 0;
|
|
h = strlen(intermediate);
|
|
do {
|
|
if ((intermediate[i] >= '0') && (intermediate[i] <= '9')) {
|
|
/* Numeric data */
|
|
for (j = 0; (intermediate[i + j] >= '0') && (intermediate[i + j] <= '9'); j++);
|
|
if (j >= 5) {
|
|
/* Use Numeric Encodation Method */
|
|
int block_count, c;
|
|
int block_remain;
|
|
int block_value;
|
|
|
|
codewords[codeword_count] = 48; /* Numeric Shift */
|
|
codeword_count++;
|
|
|
|
block_count = j / 5;
|
|
block_remain = j % 5;
|
|
|
|
for (c = 0; c < block_count; c++) {
|
|
if ((c == block_count - 1) && (block_remain == 2)) {
|
|
/* Rule (d) */
|
|
block_value = 100000;
|
|
block_value += ctoi(intermediate[i]) * 1000;
|
|
block_value += ctoi(intermediate[i + 1]) * 100;
|
|
block_value += ctoi(intermediate[i + 2]) * 10;
|
|
block_value += ctoi(intermediate[i + 3]);
|
|
|
|
codewords[codeword_count] = block_value / (48 * 48);
|
|
block_value = block_value - (48 * 48) * codewords[codeword_count];
|
|
codeword_count++;
|
|
codewords[codeword_count] = block_value / 48;
|
|
block_value = block_value - 48 * codewords[codeword_count];
|
|
codeword_count++;
|
|
codewords[codeword_count] = block_value;
|
|
codeword_count++;
|
|
i += 4;
|
|
block_value = ctoi(intermediate[i]) * 100;
|
|
block_value += ctoi(intermediate[i + 1]) * 10;
|
|
block_value += ctoi(intermediate[i + 2]);
|
|
|
|
codewords[codeword_count] = block_value / 48;
|
|
block_value = block_value - 48 * codewords[codeword_count];
|
|
codeword_count++;
|
|
codewords[codeword_count] = block_value;
|
|
codeword_count++;
|
|
i += 3;
|
|
} else {
|
|
block_value = ctoi(intermediate[i]) * 10000;
|
|
block_value += ctoi(intermediate[i + 1]) * 1000;
|
|
block_value += ctoi(intermediate[i + 2]) * 100;
|
|
block_value += ctoi(intermediate[i + 3]) * 10;
|
|
block_value += ctoi(intermediate[i + 4]);
|
|
|
|
codewords[codeword_count] = block_value / (48 * 48);
|
|
block_value = block_value - (48 * 48) * codewords[codeword_count];
|
|
codeword_count++;
|
|
codewords[codeword_count] = block_value / 48;
|
|
block_value = block_value - 48 * codewords[codeword_count];
|
|
codeword_count++;
|
|
codewords[codeword_count] = block_value;
|
|
codeword_count++;
|
|
i += 5;
|
|
}
|
|
}
|
|
|
|
switch (block_remain) {
|
|
case 1:
|
|
/* Rule (a) */
|
|
codewords[codeword_count] = posn(INSET, intermediate[i]);
|
|
codeword_count++;
|
|
i++;
|
|
break;
|
|
case 3:
|
|
/* Rule (b) */
|
|
block_value = ctoi(intermediate[i]) * 100;
|
|
block_value += ctoi(intermediate[i + 1]) * 10;
|
|
block_value += ctoi(intermediate[i + 2]);
|
|
|
|
codewords[codeword_count] = block_value / 48;
|
|
block_value = block_value - 48 * codewords[codeword_count];
|
|
codeword_count++;
|
|
codewords[codeword_count] = block_value;
|
|
codeword_count++;
|
|
i += 3;
|
|
break;
|
|
case 4:
|
|
/* Rule (c) */
|
|
block_value = 100000;
|
|
block_value += ctoi(intermediate[i]) * 1000;
|
|
block_value += ctoi(intermediate[i + 1]) * 100;
|
|
block_value += ctoi(intermediate[i + 2]) * 10;
|
|
block_value += ctoi(intermediate[i + 3]);
|
|
|
|
codewords[codeword_count] = block_value / (48 * 48);
|
|
block_value = block_value - (48 * 48) * codewords[codeword_count];
|
|
codeword_count++;
|
|
codewords[codeword_count] = block_value / 48;
|
|
block_value = block_value - 48 * codewords[codeword_count];
|
|
codeword_count++;
|
|
codewords[codeword_count] = block_value;
|
|
codeword_count++;
|
|
i += 4;
|
|
break;
|
|
}
|
|
if (i < h) {
|
|
/* There is more to add */
|
|
codewords[codeword_count] = 48; /* Numeric Shift */
|
|
codeword_count++;
|
|
}
|
|
} else {
|
|
codewords[codeword_count] = posn(INSET, intermediate[i]);
|
|
codeword_count++;
|
|
i++;
|
|
}
|
|
} else {
|
|
codewords[codeword_count] = posn(INSET, intermediate[i]);
|
|
codeword_count++;
|
|
i++;
|
|
}
|
|
} while (i < h);
|
|
|
|
switch (codewords[0]) {
|
|
/* Set starting mode value */
|
|
case 48: M = 2;
|
|
break;
|
|
case 43: M = 4;
|
|
break;
|
|
case 44: M = 5;
|
|
break;
|
|
default: M = 0;
|
|
break;
|
|
}
|
|
|
|
if (M != 0) {
|
|
for (i = 0; i < codeword_count; i++) {
|
|
codewords[i] = codewords[i + 1];
|
|
}
|
|
codeword_count--;
|
|
}
|
|
|
|
if (codeword_count > 49) {
|
|
strcpy(symbol->errtxt, "Input too long");
|
|
return ZINT_ERROR_TOO_LONG;
|
|
}
|
|
|
|
/* Place codewords in code character array (c grid) */
|
|
rows = 0;
|
|
do {
|
|
for (i = 0; i < 7; i++) {
|
|
if (((rows * 7) + i) < codeword_count) {
|
|
c_grid[rows][i] = codewords[(rows * 7) + i];
|
|
} else {
|
|
c_grid[rows][i] = 48; /* Pad */
|
|
pad_count++;
|
|
}
|
|
}
|
|
rows++;
|
|
} while ((rows * 7) < codeword_count);
|
|
|
|
if ((((rows <= 6) && (pad_count < 5))) || (rows > 6) || (rows == 1)) {
|
|
/* Add a row */
|
|
for (i = 0; i < 7; i++) {
|
|
c_grid[rows][i] = 48; /* Pad */
|
|
}
|
|
rows++;
|
|
}
|
|
|
|
/* Add row count and mode character */
|
|
c_grid[rows - 1][6] = (7 * (rows - 2)) + M;
|
|
|
|
/* Add row check character */
|
|
for (i = 0; i < rows - 1; i++) {
|
|
int row_sum = 0;
|
|
|
|
for (j = 0; j < 7; j++) {
|
|
row_sum += c_grid[i][j];
|
|
}
|
|
c_grid[i][7] = row_sum % 49;
|
|
}
|
|
|
|
/* Calculate Symbol Check Characters */
|
|
posn_val = 0;
|
|
x_count = c_grid[rows - 1][6] * 20;
|
|
y_count = c_grid[rows - 1][6] * 16;
|
|
z_count = c_grid[rows - 1][6] * 38;
|
|
for (i = 0; i < rows - 1; i++) {
|
|
for (j = 0; j < 4; j++) {
|
|
local_value = (c_grid[i][2 * j] * 49) + c_grid[i][(2 * j) + 1];
|
|
x_count += c49_x_weight[posn_val] * local_value;
|
|
y_count += c49_y_weight[posn_val] * local_value;
|
|
z_count += c49_z_weight[posn_val] * local_value;
|
|
posn_val++;
|
|
}
|
|
}
|
|
|
|
if (rows > 6) {
|
|
/* Add Z Symbol Check */
|
|
c_grid[rows - 1][0] = (z_count % 2401) / 49;
|
|
c_grid[rows - 1][1] = (z_count % 2401) % 49;
|
|
}
|
|
|
|
local_value = (c_grid[rows - 1][0] * 49) + c_grid[rows - 1][1];
|
|
x_count += c49_x_weight[posn_val] * local_value;
|
|
y_count += c49_y_weight[posn_val] * local_value;
|
|
posn_val++;
|
|
|
|
/* Add Y Symbol Check */
|
|
c_grid[rows - 1][2] = (y_count % 2401) / 49;
|
|
c_grid[rows - 1][3] = (y_count % 2401) % 49;
|
|
|
|
local_value = (c_grid[rows - 1][2] * 49) + c_grid[rows - 1][3];
|
|
x_count += c49_x_weight[posn_val] * local_value;
|
|
|
|
/* Add X Symbol Check */
|
|
c_grid[rows - 1][4] = (x_count % 2401) / 49;
|
|
c_grid[rows - 1][5] = (x_count % 2401) % 49;
|
|
|
|
/* Add last row check character */
|
|
j = 0;
|
|
for (i = 0; i < 7; i++) {
|
|
j += c_grid[rows - 1][i];
|
|
}
|
|
c_grid[rows - 1][7] = j % 49;
|
|
|
|
/* Transfer data to symbol character array (w grid) */
|
|
for (i = 0; i < rows; i++) {
|
|
for (j = 0; j < 4; j++) {
|
|
w_grid[i][j] = (c_grid[i][2 * j] * 49) + c_grid[i][(2 * j) + 1];
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < rows; i++) {
|
|
strcpy(pattern, "11"); /* Start character */
|
|
for (j = 0; j < 4; j++) {
|
|
if (i != (rows - 1)) {
|
|
if (c49_table4[i][j] == 'E') {
|
|
/* Even Parity */
|
|
strcat(pattern, c49_appxe_even[w_grid[i][j]]);
|
|
} else {
|
|
/* Odd Parity */
|
|
strcat(pattern, c49_appxe_odd[w_grid[i][j]]);
|
|
}
|
|
} else {
|
|
/* Last row uses all even parity */
|
|
strcat(pattern, c49_appxe_even[w_grid[i][j]]);
|
|
}
|
|
}
|
|
strcat(pattern, "4"); /* Stop character */
|
|
|
|
/* Expand into symbol */
|
|
symbol->row_height[i] = 10;
|
|
expand(symbol, pattern);
|
|
}
|
|
|
|
symbol->whitespace_width = 10;
|
|
symbol->output_options = BARCODE_BIND;
|
|
symbol->border_width = 2;
|
|
|
|
return 0;
|
|
} |