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comparison mupdf-source/thirdparty/zint/backend/bc412.c @ 2:b50eed0cc0ef upstream

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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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1:1d09e1dec1d9 2:b50eed0cc0ef
1 /* bc412.c - Handles IBM BC412 (SEMI T1-95) symbology */
2 /*
3 libzint - the open source barcode library
4 Copyright (C) 2022-2024 Robin Stuart <rstuart114@gmail.com>
5
6 Redistribution and use in source and binary forms, with or without
7 modification, are permitted provided that the following conditions
8 are met:
9
10 1. Redistributions of source code must retain the above copyright
11 notice, this list of conditions and the following disclaimer.
12 2. Redistributions in binary form must reproduce the above copyright
13 notice, this list of conditions and the following disclaimer in the
14 documentation and/or other materials provided with the distribution.
15 3. Neither the name of the project nor the names of its contributors
16 may be used to endorse or promote products derived from this software
17 without specific prior written permission.
18
19 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
20 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
23 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 SUCH DAMAGE.
30 */
31 /* SPDX-License-Identifier: BSD-3-Clause */
32
33 /* A little information about this symbology can be found at
34 * https://barcodeguide.seagullscientific.com/Content/Symbologies/BC412.htm
35 *
36 * Partial specification at
37 * https://www.wdfxw.net/doc80487518.htm
38 *
39 * Checked against the encoder at
40 * https://www.barcodesoft.com/en/semi/semi-t1-95-bc-412-code */
41
42 #include <stdio.h>
43 #include "common.h"
44
45 static const char BROMINE[] = "0R9GLVHA8EZ4NTS1J2Q6C7DYKBUIX3FWP5M";
46
47 static const char BC412Table[35][8] = {
48 {'1','1','1','1','1','1','1','5'}, {'1','3','1','1','1','2','1','2'},
49 {'1','1','1','3','1','1','1','3'}, {'1','2','1','1','1','2','1','3'},
50 {'1','2','1','2','1','3','1','1'}, {'1','3','1','3','1','1','1','1'},
51 {'1','2','1','1','1','3','1','2'}, {'1','1','1','3','1','2','1','2'},
52 {'1','1','1','2','1','4','1','1'}, {'1','1','1','5','1','1','1','1'},
53 {'1','5','1','1','1','1','1','1'}, {'1','1','1','1','1','5','1','1'},
54 {'1','2','1','3','1','2','1','1'}, {'1','3','1','2','1','1','1','2'},
55 {'1','3','1','1','1','3','1','1'}, {'1','1','1','1','1','2','1','4'},
56 {'1','2','1','2','1','1','1','3'}, {'1','1','1','1','1','3','1','3'},
57 {'1','3','1','1','1','1','1','3'}, {'1','1','1','2','1','2','1','3'},
58 {'1','1','1','4','1','1','1','2'}, {'1','1','1','2','1','3','1','2'},
59 {'1','1','1','4','1','2','1','1'}, {'1','4','1','2','1','1','1','1'},
60 {'1','2','1','2','1','2','1','2'}, {'1','1','1','3','1','3','1','1'},
61 {'1','3','1','2','1','2','1','1'}, {'1','2','1','1','1','4','1','1'},
62 {'1','4','1','1','1','2','1','1'}, {'1','1','1','1','1','4','1','2'},
63 {'1','2','1','1','1','1','1','4'}, {'1','4','1','1','1','1','1','2'},
64 {'1','2','1','4','1','1','1','1'}, {'1','1','1','2','1','1','1','4'},
65 {'1','2','1','3','1','1','1','2'}
66 };
67
68 INTERNAL int bc412(struct zint_symbol *symbol, unsigned char source[], int length) { /* IBM BC412 */
69 unsigned char padded_source[20];
70 int posns[35];
71 int i, counter_odd = 0, counter_even = 0, check_sum = 0;
72 char dest[293]; /* 2 + (36 * 8) + 3 */
73 char *d = dest;
74 int error_number = 0;
75
76 if (length > 18) {
77 return errtxtf(ZINT_ERROR_TOO_LONG, symbol, 790, "Input length %d too long (maximum 18)", length);
78 }
79 if (length < 7) {
80 return errtxtf(ZINT_ERROR_TOO_LONG, symbol, 792, "Input length %d too short (minimum 7)", length);
81 }
82 to_upper(source, length);
83
84 padded_source[0] = source[0];
85 padded_source[1] = '0';
86
87 for (i = 2; i <= length; i++) {
88 padded_source[i] = source[i - 1];
89 }
90 padded_source[length + 1] = 0;
91
92 if ((i = not_sane_lookup(BROMINE, 35, padded_source, length + 1, posns))) {
93 return errtxtf(ZINT_ERROR_INVALID_DATA, symbol, 791,
94 "Invalid character at position %d in input (alphanumerics only, excluding \"O\")", i - 1);
95 }
96
97 for (i = 0; i <= length; i++) {
98 if (i % 2) {
99 counter_even += posns[i];
100 } else {
101 counter_odd += posns[i];
102 }
103 }
104
105 counter_odd %= 35;
106 counter_even %= 35;
107
108 /* Check digit */
109 check_sum = counter_odd + (2 * counter_even);
110 check_sum %= 35;
111 check_sum *= 17;
112 check_sum %= 35;
113
114 if (symbol->debug & ZINT_DEBUG_PRINT) {
115 printf("BC412 check: %c\n", BROMINE[check_sum]);
116 }
117
118 padded_source[1] = BROMINE[check_sum];
119 posns[1] = check_sum;
120
121 /* Start character */
122 memcpy(d, "12", 2);
123 d += 2;
124
125 for (i = 0; i <= length; i++, d += 8) {
126 memcpy(d, BC412Table[posns[i]], 8);
127 }
128
129 /* Stop character */
130 memcpy(d, "111", 3);
131 d += 3;
132
133 expand(symbol, dest, d - dest);
134 ustrcpy(symbol->text, padded_source);
135
136 if (symbol->output_options & COMPLIANT_HEIGHT) {
137 /* SEMI T1-95 Table 1 "Module" (Character) Height 2mm ± 0.025mm, using Module Spacing 0.12mm ± 0.025mm as
138 X-dimension */
139 const float min_height = 13.6206894f; /* 1.975 / 0.145 */
140 const float default_height = 16.666666f; /* 2.0 / 0.12 */
141 const float max_height = 21.3157902f; /* 2.025 / 0.095 */
142 error_number = set_height(symbol, min_height, default_height, max_height, 0 /*no_errtxt*/);
143 } else {
144 /* Using compliant height as default as no backwards compatibility to consider */
145 const float default_height = 16.666666f; /* 2.0 / 0.12 */
146 (void) set_height(symbol, 0.0f, default_height, 0.0f, 1 /*no_errtxt*/);
147 }
148
149 return error_number;
150 }
151
152 /* vim: set ts=4 sw=4 et : */