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zint/backend/auspost.c
gitlost 5e2044ff2e CODE128: reduce extended latch cut-off from 5 to 4 for better 
encodation in certain cases (and no pessimizations found so far),
  props lyngklip (BWIPP);
  fix extended char latching when exactly 3 extended chars at end;
  count code set C (not digits) in loop deciding when to
  shift/latch to extended for better estimate
AZTEC: return warning if ECC < 5% (due to bit-stuffing when version
  given); return error if > 22 layers (Zint 26) for Reader
  Initialisation symbol requested for better error message
AZTEC/HANXIN/QRCODE: consolidate different ECC data size tables
  into one indexed by ECC
DBAR_EXP: check for reduced length <= 77 up front for better error
  message
HANXIN: use `malloc()` rather than `z_alloca()` for large binary
  array
QRCODE: `ecc_level` now 0-based (not 1-based)
MICROQR: consolidate different version end routines into one
  `microqr_end()` and use new `microqr_data` table to simplify code
MICROPDF417: use table for max codewords per column
library: centralize all error messages using new `errtxt()`,
  `errtxtf()`, `errtxt_adj()` funcs that protect `symbol->errtxt`
  from overflow, & try to make error messages more consistent
  thru-out, adding more feedback info to many, & use positional
  args "%n$" in prep for l10n (maybe);
  `is_sane/is_sane_lookup()` -> `not_sane/not_sane_lookup()`,
  returning 1-based position (zero on failure) instead of bool;
  `long` ints -> plain `int` (except those dealing with `ftell()`,
  `fread()` etc) as depend on int being 32-bits already
GUI: in "grpDATF.ui" use "PlainText" rather than "RichText" for
  tracker ratio examples as height of text messing up sometimes
manual: clarify Codablock-F length maximum & add examples
docs: README: pandoc 3.5, Ubuntu 24.04
CMake: use "-Wpedantic" for Clang only as GNU complains about
  `errtxtf()` positional args "%n$"
2024-10-27 21:33:33 +00:00

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/* auspost.c - Handles Australia Post 4-State Barcode */
/*
libzint - the open source barcode library
Copyright (C) 2008-2024 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 */
static const char GDSET[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz #";
#define GDSET_F (IS_NUM_F | IS_UPR_F | IS_LWR_F | IS_SPC_F | IS_HSH_F)
static const char AusNTable[10][2] = {
{'0','0'}, {'0','1'}, {'0','2'}, {'1','0'}, {'1','1'}, {'1','2'}, {'2','0'}, {'2','1'}, {'2','2'}, {'3','0'}
};
static const char AusCTable[64][3] = {
{'2','2','2'}, {'3','0','0'}, {'3','0','1'}, {'3','0','2'}, {'3','1','0'}, {'3','1','1'},
{'3','1','2'}, {'3','2','0'}, {'3','2','1'}, {'3','2','2'}, {'0','0','0'}, {'0','0','1'},
{'0','0','2'}, {'0','1','0'}, {'0','1','1'}, {'0','1','2'}, {'0','2','0'}, {'0','2','1'},
{'0','2','2'}, {'1','0','0'}, {'1','0','1'}, {'1','0','2'}, {'1','1','0'}, {'1','1','1'},
{'1','1','2'}, {'1','2','0'}, {'1','2','1'}, {'1','2','2'}, {'2','0','0'}, {'2','0','1'},
{'2','0','2'}, {'2','1','0'}, {'2','1','1'}, {'2','1','2'}, {'2','2','0'}, {'2','2','1'},
{'0','2','3'}, {'0','3','0'}, {'0','3','1'}, {'0','3','2'}, {'0','3','3'}, {'1','0','3'},
{'1','1','3'}, {'1','2','3'}, {'1','3','0'}, {'1','3','1'}, {'1','3','2'}, {'1','3','3'},
{'2','0','3'}, {'2','1','3'}, {'2','2','3'}, {'2','3','0'}, {'2','3','1'}, {'2','3','2'},
{'2','3','3'}, {'3','0','3'}, {'3','1','3'}, {'3','2','3'}, {'3','3','0'}, {'3','3','1'},
{'3','3','2'}, {'3','3','3'}, {'0','0','3'}, {'0','1','3'}
};
static const char AusBarTable[64][3] = {
{'0','0','0'}, {'0','0','1'}, {'0','0','2'}, {'0','0','3'}, {'0','1','0'}, {'0','1','1'},
{'0','1','2'}, {'0','1','3'}, {'0','2','0'}, {'0','2','1'}, {'0','2','2'}, {'0','2','3'},
{'0','3','0'}, {'0','3','1'}, {'0','3','2'}, {'0','3','3'}, {'1','0','0'}, {'1','0','1'},
{'1','0','2'}, {'1','0','3'}, {'1','1','0'}, {'1','1','1'}, {'1','1','2'}, {'1','1','3'},
{'1','2','0'}, {'1','2','1'}, {'1','2','2'}, {'1','2','3'}, {'1','3','0'}, {'1','3','1'},
{'1','3','2'}, {'1','3','3'}, {'2','0','0'}, {'2','0','1'}, {'2','0','2'}, {'2','0','3'},
{'2','1','0'}, {'2','1','1'}, {'2','1','2'}, {'2','1','3'}, {'2','2','0'}, {'2','2','1'},
{'2','2','2'}, {'2','2','3'}, {'2','3','0'}, {'2','3','1'}, {'2','3','2'}, {'2','3','3'},
{'3','0','0'}, {'3','0','1'}, {'3','0','2'}, {'3','0','3'}, {'3','1','0'}, {'3','1','1'},
{'3','1','2'}, {'3','1','3'}, {'3','2','0'}, {'3','2','1'}, {'3','2','2'}, {'3','2','3'},
{'3','3','0'}, {'3','3','1'}, {'3','3','2'}, {'3','3','3'}
};
#include <stdio.h>
#include "common.h"
#include "reedsol.h"
static char aus_convert_pattern(char data, int shift) {
return (data - '0') << shift;
}
/* Adds Reed-Solomon error correction to auspost */
static char *aus_rs_error(char data_pattern[], char *d) {
int reader, length, triple_writer = 0;
unsigned char triple[31];
unsigned char result[5];
rs_t rs;
for (reader = 2, length = d - data_pattern; reader < length; reader += 3, triple_writer++) {
triple[triple_writer] = aus_convert_pattern(data_pattern[reader], 4)
+ aus_convert_pattern(data_pattern[reader + 1], 2)
+ aus_convert_pattern(data_pattern[reader + 2], 0);
}
rs_init_gf(&rs, 0x43);
rs_init_code(&rs, 4, 1);
rs_encode(&rs, triple_writer, triple, result);
for (reader = 4; reader > 0; reader--, d += 3) {
memcpy(d, AusBarTable[result[reader - 1]], 3);
}
return d;
}
INTERNAL int daft_set_height(struct zint_symbol *symbol, const float min_height, const float max_height);
/* Handles Australia Posts's 4 State Codes */
INTERNAL int auspost(struct zint_symbol *symbol, unsigned char source[], int length) {
/* Customer Standard Barcode, Barcode 2 or Barcode 3 system determined automatically
(i.e. the FCC doesn't need to be specified by the user) dependent
on the length of the input string */
/* The contents of data_pattern conform to the following standard:
0 = Tracker, Ascender and Descender
1 = Tracker and Ascender
2 = Tracker and Descender
3 = Tracker only */
int i;
int error_number;
int writer;
int loopey, reader;
int h;
char data_pattern[200];
char *d = data_pattern;
char fcc[3] = {0}, dpid[10];
char localstr[30];
/* Do all of the length checking first to avoid stack smashing */
if (symbol->symbology == BARCODE_AUSPOST) {
if (length != 8 && length != 13 && length != 16 && length != 18 && length != 23) {
return errtxtf(ZINT_ERROR_TOO_LONG, symbol, 401, "Input length %d wrong (8, 13, 16, 18 or 23 only)",
length);
}
} else if (length > 8) {
return errtxtf(ZINT_ERROR_TOO_LONG, symbol, 403, "Input length %d too long (maximum 8)", length);
}
/* Check input immediately to catch nuls */
if ((i = not_sane(GDSET_F, source, length))) {
return errtxtf(ZINT_ERROR_INVALID_DATA, symbol, 404,
"Invalid character at position %d in input (alphanumerics, space and \"#\" only)", i);
}
localstr[0] = '\0';
if (symbol->symbology == BARCODE_AUSPOST) {
/* Format control code (FCC) */
switch (length) {
case 8:
strcpy(fcc, "11");
break;
case 13:
strcpy(fcc, "59");
break;
case 16:
strcpy(fcc, "59");
if ((i = not_sane(NEON_F, source, length))) {
return errtxtf(ZINT_ERROR_INVALID_DATA, symbol, 402,
"Invalid character at position %d in input (digits only for FCC 59 length 16)",
i);
}
break;
case 18:
strcpy(fcc, "62");
break;
case 23:
strcpy(fcc, "62");
if ((i = not_sane(NEON_F, source, length))) {
return errtxtf(ZINT_ERROR_INVALID_DATA, symbol, 406,
"Invalid character at position %d in input (digits only for FCC 62 length 23)",
i);
}
break;
}
} else {
int zeroes;
switch (symbol->symbology) {
case BARCODE_AUSREPLY: strcpy(fcc, "45");
break;
case BARCODE_AUSROUTE: strcpy(fcc, "87");
break;
case BARCODE_AUSREDIRECT: strcpy(fcc, "92");
break;
}
/* Add leading zeros as required */
zeroes = 8 - length;
memset(localstr, '0', zeroes);
localstr[zeroes] = '\0';
}
if (symbol->debug & ZINT_DEBUG_PRINT) {
printf("AUSPOST FCC: %s\n", fcc);
}
ustrncat(localstr, source, length);
h = (int) strlen(localstr);
/* Verify that the first 8 characters are numbers */
memcpy(dpid, localstr, 8);
dpid[8] = '\0';
if ((i = not_sane(NEON_F, (unsigned char *) dpid, 8))) {
return errtxtf(ZINT_ERROR_INVALID_DATA, symbol, 405,
"Invalid character at position %d in DPID (first 8 characters) (digits only)", i);
}
/* Start character */
memcpy(d, "13", 2);
d += 2;
/* Encode the FCC */
for (reader = 0; reader < 2; reader++, d += 2) {
memcpy(d, AusNTable[fcc[reader] - '0'], 2);
}
/* Delivery Point Identifier (DPID) */
for (reader = 0; reader < 8; reader++, d += 2) {
memcpy(d, AusNTable[dpid[reader] - '0'], 2);
}
/* Customer Information */
if (h > 8) {
if ((h == 13) || (h == 18)) {
for (reader = 8; reader < h; reader++, d += 3) {
memcpy(d, AusCTable[posn(GDSET, localstr[reader])], 3);
}
} else if ((h == 16) || (h == 23)) {
for (reader = 8; reader < h; reader++, d += 2) {
memcpy(d, AusNTable[localstr[reader] - '0'], 2);
}
}
}
/* Filler bar */
h = d - data_pattern;
switch (h) {
case 22:
case 37:
case 52:
*d++ = '3';
break;
default:
break;
}
/* Reed Solomon error correction */
d = aus_rs_error(data_pattern, d);
/* Stop character */
memcpy(d, "13", 2);
d += 2;
/* Turn the symbol into a bar pattern ready for plotting */
writer = 0;
h = d - data_pattern;
for (loopey = 0; loopey < h; loopey++) {
if ((data_pattern[loopey] == '1') || (data_pattern[loopey] == '0')) {
set_module(symbol, 0, writer);
}
set_module(symbol, 1, writer);
if ((data_pattern[loopey] == '2') || (data_pattern[loopey] == '0')) {
set_module(symbol, 2, writer);
}
writer += 2;
}
if (symbol->output_options & COMPLIANT_HEIGHT) {
/* Australia Post Customer Barcoding Technical Specifications (Revised Aug 2012) Dimensions, placement and
printing p.12
(https://auspost.com.au/content/dam/auspost_corp/media/documents/
customer-barcode-technical-specifications-aug2012.pdf)
X 0.5mm (average of 0.4mm - 0.6mm), min height 4.2mm / 0.6mm (X max) = 7, max 5.6mm / 0.4mm (X min) = 14
Tracker 1.3mm (average of 1mm - 1.6mm)
Ascender/Descender 3.15mm (average of 2.6mm - 3.7mm) less T = 1.85mm
*/
symbol->row_height[0] = 3.7f; /* 1.85f / 0.5f */
symbol->row_height[1] = 2.6f; /* 1.3f / 0.5f */
error_number = daft_set_height(symbol, 7.0f, 14.0f); /* Note using max X for minimum and min X for maximum */
} else {
symbol->row_height[0] = 3.0f;
symbol->row_height[1] = 2.0f;
error_number = daft_set_height(symbol, 0.0f, 0.0f);
}
symbol->rows = 3;
symbol->width = writer - 1;
return error_number;
}
/* vim: set ts=4 sw=4 et : */
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