mirror of
https://git.code.sf.net/p/zint/code
synced 2025-05-21 18:55:11 -04:00
d222add96d
DOTCODE/GRIDMATRIX/HANXIN/MICROPDF417/MICROQR/PDF417/QRCODE/
RMQR/ULTRA: set `option_1/2/3` to values used in encodation
("Feedback options"), and add new access methods
`encodedOption1()` etc. to Qt Backend, and use in GUI to provide
better feedback on "Automatic" selections
- AZTEC: give more precise warnings in low ECC situations, and
indicate via `option_1` by setting to -1 (min 3 words), 0
(<5% + 3 words) (`ecc_ratio`)
- set_height: fix non-compliance false positives by using epsilon
in checks (prompted by CODABLOCKF non-compliant warning for
zint-generated compliant height - floating point `rows` mult !=
`zero_count` div; one test regression for CODE93);
better warning messages on non-compliant heights (min/max)
- manual/man page: fix DATAMATRIX Sizes tables "28 12x26" ->
"27 12x26"
- GUI: AZTEC/CODEONE: add Zint versions to comboboxes
- DOTCODE: improve error messages re size too small/large
- ULTRA: better ZINT_TEST codeword dump (ZINT_DEBUG_TEST)
- general: various tabs -> spaces; prettify main .rc files;
trailing spaces; small amount of code fiddling (CODE16K)
394 lines
15 KiB
C
394 lines
15 KiB
C
/* code49.c - Handles Code 49 */
|
|
/*
|
|
libzint - the open source barcode library
|
|
Copyright (C) 2009-2025 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.
|
|
*/
|
|
/* SPDX-License-Identifier: BSD-3-Clause */
|
|
|
|
#include <stdio.h>
|
|
#include "common.h"
|
|
#include "code49.h"
|
|
|
|
static const char C49_INSET[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. $/+%!&*";
|
|
|
|
/* "!" represents Shift 1 and "&" represents Shift 2, "*" represents FNC1 */
|
|
|
|
INTERNAL int code49(struct zint_symbol *symbol, unsigned char source[], int length) {
|
|
int i, j, rows, M, x_count, y_count, z_count, posn_val, local_value;
|
|
char intermediate[170] = "";
|
|
char *d = intermediate;
|
|
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[80];
|
|
int bp = 0; /* Initialize to suppress gcc -Wmaybe-uninitialized warning */
|
|
int gs1;
|
|
int h;
|
|
int error_number = 0;
|
|
|
|
if (length > 81) {
|
|
return errtxtf(ZINT_ERROR_TOO_LONG, symbol, 430, "Input length %d too long (maximum 81)", length);
|
|
}
|
|
if ((symbol->input_mode & 0x07) == GS1_MODE) {
|
|
gs1 = 1;
|
|
*d++ = '*'; /* FNC1 */
|
|
} else {
|
|
gs1 = 0;
|
|
}
|
|
|
|
for (i = 0; i < length; i++) {
|
|
if (source[i] > 127) {
|
|
return errtxtf(ZINT_ERROR_INVALID_DATA, symbol, 431,
|
|
"Invalid character at position %d in input, extended ASCII not allowed", i + 1);
|
|
}
|
|
if (gs1 && source[i] == '\x1D') {
|
|
*d++ = '*'; /* FNC1 */
|
|
} else {
|
|
const char *const entry = c49_table7[source[i]];
|
|
memcpy(d, entry, 2);
|
|
d += entry[1] ? 2 : 1;
|
|
}
|
|
}
|
|
|
|
codeword_count = 0;
|
|
i = 0;
|
|
h = d - intermediate;
|
|
do {
|
|
if (z_isdigit(intermediate[i])) {
|
|
/* Numeric data */
|
|
for (j = 0; z_isdigit(intermediate[i + j]); 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(C49_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(C49_INSET, intermediate[i]);
|
|
codeword_count++;
|
|
i++;
|
|
}
|
|
} else {
|
|
codewords[codeword_count] = posn(C49_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) {
|
|
codeword_count--;
|
|
for (i = 0; i < codeword_count; i++) {
|
|
codewords[i] = codewords[i + 1];
|
|
}
|
|
}
|
|
|
|
if (codeword_count > 49) {
|
|
return errtxtf(ZINT_ERROR_TOO_LONG, symbol, 432, "Input too long, requires %d codewords (maximum 49)",
|
|
codeword_count);
|
|
}
|
|
|
|
/* 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++;
|
|
}
|
|
|
|
if (symbol->option_1 >= 2 && symbol->option_1 <= 8) { /* Minimum no. of rows */
|
|
if (symbol->option_1 > rows) {
|
|
for (j = symbol->option_1 - rows; j > 0; j--) {
|
|
for (i = 0; i < 7; i++) {
|
|
c_grid[rows][i] = 48; /* Pad */
|
|
}
|
|
rows++;
|
|
}
|
|
}
|
|
} else if (symbol->option_1 >= 1) {
|
|
return errtxt(ZINT_ERROR_INVALID_OPTION, symbol, 433, "Minimum number of rows out of range (2 to 8)");
|
|
}
|
|
|
|
/* Feedback options */
|
|
symbol->option_1 = 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;
|
|
|
|
if (symbol->debug & ZINT_DEBUG_PRINT) {
|
|
fputs("Codewords:\n", stdout);
|
|
for (i = 0; i < rows; i++) {
|
|
for (j = 0; j < 8; j++) {
|
|
printf(" %2d", c_grid[i][j]);
|
|
}
|
|
fputc('\n', stdout);
|
|
}
|
|
}
|
|
#ifdef ZINT_TEST
|
|
if (symbol->debug & ZINT_DEBUG_TEST) {
|
|
debug_test_codeword_dump_int(symbol, (int *)c_grid, rows * 8);
|
|
}
|
|
#endif
|
|
|
|
/* 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++) {
|
|
bp = 0;
|
|
bp = bin_append_posn(2, 2, pattern, bp); /* Start character "10" */
|
|
for (j = 0; j < 4; j++) {
|
|
if (i != (rows - 1)) {
|
|
if (c49_table4[i][j] == 'E') {
|
|
/* Even Parity */
|
|
bp = bin_append_posn(c49_even_bitpattern[w_grid[i][j]], 16, pattern, bp);
|
|
} else {
|
|
/* Odd Parity */
|
|
bp = bin_append_posn(c49_odd_bitpattern[w_grid[i][j]], 16, pattern, bp);
|
|
}
|
|
} else {
|
|
/* Last row uses all even parity */
|
|
bp = bin_append_posn(c49_even_bitpattern[w_grid[i][j]], 16, pattern, bp);
|
|
}
|
|
}
|
|
bp = bin_append_posn(15, 4, pattern, bp); /* Stop character "1111" */
|
|
|
|
/* Expand into symbol */
|
|
for (j = 0; j < bp; j++) {
|
|
if (pattern[j] == '1') {
|
|
set_module(symbol, i, j);
|
|
}
|
|
}
|
|
}
|
|
|
|
symbol->rows = rows;
|
|
symbol->width = bp;
|
|
|
|
if (symbol->output_options & COMPLIANT_HEIGHT) {
|
|
/* ANSI/AIM BC6-2000 Section 2.6 minimum 8X; use 10X as default
|
|
Formula 2 H = ((h + g)r + g)X = rows * row_height + (rows - 1) * separator as borders not included
|
|
in symbol->height (added on) */
|
|
const int separator = symbol->option_3 >= 1 && symbol->option_3 <= 4 ? symbol->option_3 : 1;
|
|
const float min_row_height = stripf((8.0f * rows + separator * (rows - 1)) / rows);
|
|
const float default_height = 10.0f * rows + separator * (rows - 1);
|
|
error_number = set_height(symbol, min_row_height, default_height, 0.0f, 0 /*no_errtxt*/);
|
|
symbol->option_3 = separator; /* Feedback options */
|
|
} else {
|
|
(void) set_height(symbol, 0.0f, 10.0f * rows, 0.0f, 1 /*no_errtxt*/);
|
|
}
|
|
|
|
symbol->output_options |= BARCODE_BIND;
|
|
|
|
if (symbol->border_width == 0) { /* Allow override if non-zero */
|
|
symbol->border_width = 1; /* ANSI/AIM BC6-2000 Section 2.1 (note change from previous default 2) */
|
|
}
|
|
|
|
return error_number;
|
|
}
|
|
|
|
/* vim: set ts=4 sw=4 et : */
|