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261 lines
9.6 KiB
C
261 lines
9.6 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 - 2021 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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/* vim: set ts=4 sw=4 et : */
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#define GDSET "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz #"
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static const char *AusNTable[10] = {
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"00", "01", "02", "10", "11", "12", "20", "21", "22", "30"
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};
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static const char *AusCTable[64] = {
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"222", "300", "301", "302", "310", "311", "312", "320", "321", "322",
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"000", "001", "002", "010", "011", "012", "020", "021", "022", "100", "101", "102", "110",
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"111", "112", "120", "121", "122", "200", "201", "202", "210", "211", "212", "220", "221",
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"023", "030", "031", "032", "033", "103", "113", "123", "130", "131", "132", "133", "203",
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"213", "223", "230", "231", "232", "233", "303", "313", "323", "330", "331", "332", "333",
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"003", "013"
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};
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static const char *AusBarTable[64] = {
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"000", "001", "002", "003", "010", "011", "012", "013", "020", "021",
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"022", "023", "030", "031", "032", "033", "100", "101", "102", "103", "110", "111", "112",
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"113", "120", "121", "122", "123", "130", "131", "132", "133", "200", "201", "202", "203",
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"210", "211", "212", "213", "220", "221", "222", "223", "230", "231", "232", "233", "300",
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"301", "302", "303", "310", "311", "312", "313", "320", "321", "322", "323", "330", "331",
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"332", "333"
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};
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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 char convert_pattern(char data, int shift) {
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return (data - '0') << shift;
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}
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/* Adds Reed-Solomon error correction to auspost */
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static void rs_error(char data_pattern[]) {
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int reader, len, triple_writer = 0;
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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, len = (int) strlen(data_pattern); reader < len; reader += 3, triple_writer++) {
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triple[triple_writer] = convert_pattern(data_pattern[reader], 4)
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+ convert_pattern(data_pattern[reader + 1], 2)
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+ convert_pattern(data_pattern[reader + 2], 0);
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}
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rs_init_gf(&rs, 0x43);
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rs_init_code(&rs, 4, 1);
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rs_encode(&rs, triple_writer, triple, result);
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for (reader = 4; reader > 0; reader--) {
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strcat(data_pattern, AusBarTable[(int) result[reader - 1]]);
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}
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}
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INTERNAL int daft_set_height(struct zint_symbol *symbol, float min_height, float max_height);
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/* Handles Australia Posts's 4 State Codes */
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INTERNAL int australia_post(struct zint_symbol *symbol, unsigned char source[], int length) {
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/* Customer Standard Barcode, Barcode 2 or Barcode 3 system determined automatically
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(i.e. the 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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/* 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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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 fcc[3] = {0, 0, 0}, dpid[10];
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char localstr[30];
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/* Check input immediately to catch nuls */
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error_number = is_sane(GDSET, source, length);
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if (error_number == ZINT_ERROR_INVALID_DATA) {
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strcpy(symbol->errtxt, "404: Invalid character in data (alphanumerics, space and \"#\" only)");
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return error_number;
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}
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strcpy(localstr, "");
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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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/* Format control code (FCC) */
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switch (length) {
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case 8:
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strcpy(fcc, "11");
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break;
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case 13:
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strcpy(fcc, "59");
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break;
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case 16:
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strcpy(fcc, "59");
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error_number = is_sane(NEON, source, length);
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break;
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case 18:
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strcpy(fcc, "62");
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break;
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case 23:
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strcpy(fcc, "62");
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error_number = is_sane(NEON, source, length);
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break;
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default:
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strcpy(symbol->errtxt, "401: Auspost input is wrong length (8, 13, 16, 18 or 23 characters only)");
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return ZINT_ERROR_TOO_LONG;
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}
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if (error_number == ZINT_ERROR_INVALID_DATA) {
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strcpy(symbol->errtxt, "402: Invalid character in data (digits only for lengths 16 and 23)");
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return error_number;
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}
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} else {
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int zeroes;
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if (length > 8) {
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strcpy(symbol->errtxt, "403: Auspost input is too long (8 character maximum)");
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return ZINT_ERROR_TOO_LONG;
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}
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switch (symbol->symbology) {
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case BARCODE_AUSREPLY: strcpy(fcc, "45");
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break;
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case BARCODE_AUSROUTE: strcpy(fcc, "87");
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break;
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case BARCODE_AUSREDIRECT: strcpy(fcc, "92");
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break;
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}
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/* Add leading zeros as required */
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zeroes = 8 - length;
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memset(localstr, '0', zeroes);
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localstr[zeroes] = '\0';
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}
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if (symbol->debug & ZINT_DEBUG_PRINT) {
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printf("AUSPOST FCC: %s\n", fcc);
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}
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ustrncat(localstr, source, length);
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h = (int) strlen(localstr);
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/* Verify that the first 8 characters are numbers */
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memcpy(dpid, localstr, 8);
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dpid[8] = '\0';
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error_number = is_sane(NEON, (unsigned char *) dpid, 8);
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if (error_number == ZINT_ERROR_INVALID_DATA) {
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strcpy(symbol->errtxt, "405: Invalid character in DPID (first 8 characters) (digits only)");
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return error_number;
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}
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/* Start character */
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strcpy(data_pattern, "13");
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/* Encode the FCC */
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for (reader = 0; reader < 2; reader++) {
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lookup(NEON, AusNTable, fcc[reader], data_pattern);
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}
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/* Delivery Point Identifier (DPID) */
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for (reader = 0; reader < 8; reader++) {
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lookup(NEON, AusNTable, dpid[reader], data_pattern);
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}
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/* Customer Information */
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if (h > 8) {
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if ((h == 13) || (h == 18)) {
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for (reader = 8; reader < h; reader++) {
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lookup(GDSET, AusCTable, localstr[reader], data_pattern);
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}
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} else if ((h == 16) || (h == 23)) {
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for (reader = 8; reader < h; reader++) {
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lookup(NEON, AusNTable, localstr[reader], data_pattern);
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}
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}
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}
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/* Filler bar */
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h = (int) strlen(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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strcat(data_pattern, "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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rs_error(data_pattern);
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/* Stop character */
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strcat(data_pattern, "13");
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/* Turn the symbol into a bar pattern ready for plotting */
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writer = 0;
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h = (int) strlen(data_pattern);
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for (loopey = 0; loopey < h; loopey++) {
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if ((data_pattern[loopey] == '1') || (data_pattern[loopey] == '0')) {
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set_module(symbol, 0, writer);
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}
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set_module(symbol, 1, writer);
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if ((data_pattern[loopey] == '2') || (data_pattern[loopey] == '0')) {
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set_module(symbol, 2, writer);
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}
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writer += 2;
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}
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#ifdef COMPLIANT_HEIGHTS
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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/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), 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] = 1.85f / 0.5f; /* 3.7 */
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symbol->row_height[1] = 1.3f / 0.5f; /* 2.6 */
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error_number = daft_set_height(symbol, 7.0f, 14.0f); /* Note using max X for minimum and min X for maximum */
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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 = daft_set_height(symbol, 0.0f, 0.0f);
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#endif
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symbol->rows = 3;
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symbol->width = writer - 1;
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return error_number;
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}
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