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https://git.code.sf.net/p/zint/code
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b40393723f
CODE128: properly fix not switching before FNC1 in 2nd position after alpha (commit [7b0767]) PLANET/KIX: adapt POSTNET to cater for both general: use static strings to save a few bytes (start/stop in particular); various other code fiddles postal: move tables into funcs
300 lines
12 KiB
C
300 lines
12 KiB
C
/* auspost.c - Handles Australia Post 4-State Barcode */
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/*
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libzint - the open source barcode library
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Copyright (C) 2008-2026 Robin Stuart <rstuart114@gmail.com>
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. Neither the name of the project nor the names of its contributors
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may be used to endorse or promote products derived from this software
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without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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SUCH DAMAGE.
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*/
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/* SPDX-License-Identifier: BSD-3-Clause */
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static const char AusGDSET[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz #";
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#define AUS_GDSET_F (IS_NUM_F | IS_UPR_F | IS_LWR_F | IS_SPC_F | IS_HSH_F)
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/* The contents of data_pattern conform to the following standard:
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0 = Tracker, Ascender and Descender
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1 = Tracker and Ascender
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2 = Tracker and Descender
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3 = Tracker only */
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/* N Encoding Table (numeric) */
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static const char AusNTable[10][2] = {
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{ 0,0 }, { 0,1 }, { 0,2 }, { 1,0 }, { 1,1 }, { 1,2 }, { 2,0 }, { 2,1 }, { 2,2 }, { 3,0 }
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};
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/* C Encoding Table (GDSET) */
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static const char AusCTable[64][3] = {
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{ 2,2,2 }, { 3,0,0 }, { 3,0,1 }, { 3,0,2 }, { 3,1,0 }, {3,1,1 },
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{ 3,1,2 }, { 3,2,0 }, { 3,2,1 }, { 3,2,2 }, { 0,0,0 }, {0,0,1 },
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{ 0,0,2 }, { 0,1,0 }, { 0,1,1 }, { 0,1,2 }, { 0,2,0 }, {0,2,1 },
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{ 0,2,2 }, { 1,0,0 }, { 1,0,1 }, { 1,0,2 }, { 1,1,0 }, {1,1,1 },
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{ 1,1,2 }, { 1,2,0 }, { 1,2,1 }, { 1,2,2 }, { 2,0,0 }, {2,0,1 },
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{ 2,0,2 }, { 2,1,0 }, { 2,1,1 }, { 2,1,2 }, { 2,2,0 }, {2,2,1 },
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{ 0,2,3 }, { 0,3,0 }, { 0,3,1 }, { 0,3,2 }, { 0,3,3 }, {1,0,3 },
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{ 1,1,3 }, { 1,2,3 }, { 1,3,0 }, { 1,3,1 }, { 1,3,2 }, {1,3,3 },
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{ 2,0,3 }, { 2,1,3 }, { 2,2,3 }, { 2,3,0 }, { 2,3,1 }, {2,3,2 },
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{ 2,3,3 }, { 3,0,3 }, { 3,1,3 }, { 3,2,3 }, { 3,3,0 }, {3,3,1 },
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{ 3,3,2 }, { 3,3,3 }, { 0,0,3 }, { 0,1,3 }
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};
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/* Bar to Decimal Conversion Table (Reed-Solomon) */
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static const char AusBarTable[64][3] = {
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{ 0,0,0 }, { 0,0,1 }, { 0,0,2 }, { 0,0,3 }, { 0,1,0 }, { 0,1,1 },
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{ 0,1,2 }, { 0,1,3 }, { 0,2,0 }, { 0,2,1 }, { 0,2,2 }, { 0,2,3 },
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{ 0,3,0 }, { 0,3,1 }, { 0,3,2 }, { 0,3,3 }, { 1,0,0 }, { 1,0,1 },
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{ 1,0,2 }, { 1,0,3 }, { 1,1,0 }, { 1,1,1 }, { 1,1,2 }, { 1,1,3 },
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{ 1,2,0 }, { 1,2,1 }, { 1,2,2 }, { 1,2,3 }, { 1,3,0 }, { 1,3,1 },
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{ 1,3,2 }, { 1,3,3 }, { 2,0,0 }, { 2,0,1 }, { 2,0,2 }, { 2,0,3 },
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{ 2,1,0 }, { 2,1,1 }, { 2,1,2 }, { 2,1,3 }, { 2,2,0 }, { 2,2,1 },
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{ 2,2,2 }, { 2,2,3 }, { 2,3,0 }, { 2,3,1 }, { 2,3,2 }, { 2,3,3 },
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{ 3,0,0 }, { 3,0,1 }, { 3,0,2 }, { 3,0,3 }, { 3,1,0 }, { 3,1,1 },
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{ 3,1,2 }, { 3,1,3 }, { 3,2,0 }, { 3,2,1 }, { 3,2,2 }, { 3,2,3 },
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{ 3,3,0 }, { 3,3,1 }, { 3,3,2 }, { 3,3,3 }
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};
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#include <assert.h>
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#include <stdio.h>
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#include "common.h"
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#include "reedsol.h"
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static unsigned char aus_convert_pattern(const char data, const int shift) {
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return data << shift;
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}
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/* Adds Reed-Solomon error correction to auspost */
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static char *aus_rs_error(const char data_pattern[], char *d) {
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const int length = (int) (d - data_pattern);
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int reader, triple_writer;
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unsigned char triple[31];
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unsigned char result[5];
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rs_t rs;
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for (reader = 2, triple_writer = 0; reader < length; reader += 3, triple_writer++) {
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triple[triple_writer] = aus_convert_pattern(data_pattern[reader], 4)
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| aus_convert_pattern(data_pattern[reader + 1], 2)
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| aus_convert_pattern(data_pattern[reader + 2], 0);
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}
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zint_rs_init_gf(&rs, 0x43);
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zint_rs_init_code(&rs, 4, 1);
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zint_rs_encode(&rs, triple_writer, triple, result);
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for (reader = 0; reader < 4; reader++, d += 3) {
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memcpy(d, AusBarTable[result[reader]], 3);
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}
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return d;
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}
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/* In "postal.c" */
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INTERNAL int zint_daft_set_height(struct zint_symbol *symbol, const float min_height, const float max_height);
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/* Handles Australia Posts's 4 State Codes */
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INTERNAL int zint_auspost(struct zint_symbol *symbol, unsigned char source[], int length) {
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/* Standard Customer Barcode, Customer Barcode 2 or Customer Barcode 3 system determined automatically
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(i.e. the Format Control Code (FCC) doesn't need to be specified by the user) dependent
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on the length of the input string */
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static const unsigned char fccs[7][2] = {
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/* Null Standard Barcode 2 Barcode 3 Reply Route Redirect */
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{ '0','0' }, { '1','1' }, { '5','9' }, { '6','2' }, { '4','5' }, { '8','7' }, { '9','2' }
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};
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static const char start_stop[2] = { 1,3 };
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int i;
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int error_number;
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int writer;
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int loopey, reader;
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int h;
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char data_pattern[200];
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char *d = data_pattern;
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int fcc_idx; /* Index into `fccs[]` */
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unsigned char local_source[30];
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int zeroes = 0;
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const int content_segs = symbol->output_options & BARCODE_CONTENT_SEGS;
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/* Suppress clang-tidy-21 clang-analyzer-security.ArrayBound */
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assert(symbol->symbology == BARCODE_AUSPOST || symbol->symbology == BARCODE_AUSREPLY
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|| symbol->symbology == BARCODE_AUSROUTE || symbol->symbology == BARCODE_AUSREDIRECT);
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/* Do all of the length checking first to avoid stack smashing */
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if (symbol->symbology == BARCODE_AUSPOST) {
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if (length != 8 && length != 13 && length != 16 && length != 18 && length != 23) {
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return z_errtxtf(ZINT_ERROR_TOO_LONG, symbol, 401,
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"Input length %d wrong (8, 13, 16, 18 or 23 characters required)", length);
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}
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} else if (length > 8) {
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return z_errtxtf(ZINT_ERROR_TOO_LONG, symbol, 403, "Input length %d too long (maximum 8)", length);
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}
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/* Check input immediately to catch invalid chars */
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if ((i = z_not_sane(AUS_GDSET_F, source, length))) {
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return z_errtxtf(ZINT_ERROR_INVALID_DATA, symbol, 404,
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"Invalid character at position %d in input (alphanumerics, space and \"#\" only)", i);
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}
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if (symbol->symbology == BARCODE_AUSPOST) {
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/* Format control code (FCC) */
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switch (length) {
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case 8:
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fcc_idx = 1; /* FCC 11 Standard Customer */
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break;
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case 13:
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fcc_idx = 2; /* FCC 59 Customer 2 */
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break;
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case 16:
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fcc_idx = 2; /* FCC 59 Customer 2 */
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if ((i = z_not_sane(NEON_F, source, length))) {
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return z_errtxtf(ZINT_ERROR_INVALID_DATA, symbol, 402,
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"Invalid character at position %d in input (digits only for FCC 59 length 16)",
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i);
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}
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break;
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case 18:
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fcc_idx = 3; /* FCC 62 Customer 3 */
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break;
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case 23:
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fcc_idx = 3; /* FCC 62 Customer 3 */
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if ((i = z_not_sane(NEON_F, source, length))) {
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return z_errtxtf(ZINT_ERROR_INVALID_DATA, symbol, 406,
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"Invalid character at position %d in input (digits only for FCC 62 length 23)",
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i);
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}
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break;
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}
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/* Check if DPID all zeros (Null) */
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for (i = 0; i < 8 && source[i] == '0'; i++);
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if (i == 8) {
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fcc_idx = 0; /* Null */
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}
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} else {
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fcc_idx = symbol->symbology - BARCODE_AUSREPLY + 4; /* 4 (FCC 45), 5 (FCC 87) or 6 (FCC 92) */
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/* Add leading zeros as required */
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zeroes = 8 - length;
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memset(local_source, '0', zeroes);
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}
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if (symbol->debug & ZINT_DEBUG_PRINT) {
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printf("AUSPOST FCC: %.2s\n", fccs[fcc_idx]);
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}
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memcpy(local_source + zeroes, source, length);
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length += zeroes;
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/* Verify that the first 8 characters are numbers */
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if ((i = z_not_sane(NEON_F, local_source, 8))) {
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return z_errtxtf(ZINT_ERROR_INVALID_DATA, symbol, 405,
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"Invalid character at position %d in DPID (first 8 characters) (digits only)", i);
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}
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/* Start character */
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memcpy(d, start_stop, 2);
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d += 2;
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/* Encode the FCC */
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for (reader = 0; reader < 2; reader++, d += 2) {
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memcpy(d, AusNTable[fccs[fcc_idx][reader] - '0'], 2);
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}
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/* Delivery Point Identifier (DPID) */
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for (reader = 0; reader < 8; reader++, d += 2) {
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memcpy(d, AusNTable[local_source[reader] - '0'], 2);
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}
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/* Customer Information */
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if (length > 8) {
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if (length == 13 || length == 18) {
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for (reader = 8; reader < length; reader++, d += 3) {
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memcpy(d, AusCTable[z_posn(AusGDSET, local_source[reader])], 3);
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}
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} else if (length == 16 || length == 23) {
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for (reader = 8; reader < length; reader++, d += 2) {
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memcpy(d, AusNTable[local_source[reader] - '0'], 2);
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}
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}
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}
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/* Filler bar */
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h = (int) (d - data_pattern);
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switch (h) {
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case 22:
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case 37:
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case 52:
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*d++ = 3;
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break;
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default:
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break;
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}
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/* Reed Solomon error correction */
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d = aus_rs_error(data_pattern, d);
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/* Stop character */
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memcpy(d, start_stop, 2);
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d += 2;
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/* Turn the symbol into a bar pattern ready for plotting */
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h = (int) (d - data_pattern);
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for (loopey = 0, writer = 0; loopey < h; loopey++, writer += 2) {
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if (data_pattern[loopey] == 1 || data_pattern[loopey] == 0) {
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z_set_module(symbol, 0, writer);
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}
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z_set_module(symbol, 1, writer);
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if (data_pattern[loopey] == 2 || data_pattern[loopey] == 0) {
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z_set_module(symbol, 2, writer);
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}
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}
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symbol->rows = 3; /* Not stackable */
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symbol->width = writer - 1;
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if (symbol->output_options & COMPLIANT_HEIGHT) {
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/* Australia Post Customer Barcoding Technical Specifications (Revised Aug 2012) Dimensions, placement and
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printing p.12
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(https://auspost.com.au/content/dam/auspost_corp/media/documents/
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customer-barcode-technical-specifications-aug2012.pdf)
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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
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Tracker 1.3mm (average of 1mm - 1.6mm)
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Ascender/Descender 3.15mm (average of 2.6mm - 3.7mm) less T = 1.85mm
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*/
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symbol->row_height[0] = 3.7f; /* 1.85f / 0.5f */
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symbol->row_height[1] = 2.6f; /* 1.3f / 0.5f */
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/* Note using max X for minimum and min X for maximum */
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error_number = zint_daft_set_height(symbol, 7.0f, 14.0f);
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} else {
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symbol->row_height[0] = 3.0f;
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symbol->row_height[1] = 2.0f;
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error_number = zint_daft_set_height(symbol, 0.0f, 0.0f);
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}
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if (content_segs && z_ct_cpy_cat(symbol, fccs[fcc_idx], 2, '\xFF' /*separator (none)*/, local_source, length)) {
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return ZINT_ERROR_MEMORY; /* `z_ct_cpy_cat()` only fails with OOM */
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}
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return error_number;
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}
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/* vim: set ts=4 sw=4 et : */
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