2 * *****************************************************************************
4 * SPDX-License-Identifier: BSD-2-Clause
6 * Copyright (c) 2018-2020 Gavin D. Howard and contributors.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are met:
11 * * Redistributions of source code must retain the above copyright notice, this
12 * list of conditions and the following disclaimer.
14 * * Redistributions in binary form must reproduce the above copyright notice,
15 * this list of conditions and the following disclaimer in the documentation
16 * and/or other materials provided with the distribution.
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
30 * *****************************************************************************
32 * Generates a const array from a bc script.
45 static const char* const bc_gen_header =
46 "// Copyright (c) 2018-2020 Gavin D. Howard and contributors.\n"
47 "// Licensed under the 2-clause BSD license.\n"
48 "// *** AUTOMATICALLY GENERATED FROM %s. DO NOT MODIFY. ***\n";
50 static const char* const bc_gen_include = "#include <%s>\n\n";
51 static const char* const bc_gen_label = "const char *%s = \"%s\";\n\n";
52 static const char* const bc_gen_ifdef = "#if %s\n";
53 static const char* const bc_gen_endif = "#endif // %s\n";
54 static const char* const bc_gen_name = "const char %s[] = {\n";
57 #define INVALID_INPUT_FILE (2)
58 #define INVALID_PARAMS (3)
60 #define MAX_WIDTH (74)
62 int main(int argc, char *argv[]) {
65 char *label, *define, *name, *include;
66 int c, count, slashes, err = IO_ERR;
67 bool has_label, has_define, remove_tabs;
70 printf("usage: %s input output name header [label [define [remove_tabs]]]\n", argv[0]);
71 return INVALID_PARAMS;
77 has_label = (argc > 5 && strcmp("", argv[5]) != 0);
78 label = has_label ? argv[5] : "";
80 has_define = (argc > 6 && strcmp("", argv[6]) != 0);
81 define = has_define ? argv[6] : "";
83 remove_tabs = (argc > 7);
85 in = fopen(argv[1], "r");
86 if (!in) return INVALID_INPUT_FILE;
88 out = fopen(argv[2], "w");
89 if (!out) goto out_err;
91 if (fprintf(out, bc_gen_header, argv[1]) < 0) goto err;
92 if (has_define && fprintf(out, bc_gen_ifdef, define) < 0) goto err;
93 if (fprintf(out, bc_gen_include, include) < 0) goto err;
94 if (has_label && fprintf(out, bc_gen_label, label, argv[1]) < 0) goto err;
95 if (fprintf(out, bc_gen_name, name) < 0) goto err;
97 c = count = slashes = 0;
99 while (slashes < 2 && (c = fgetc(in)) >= 0) {
100 slashes += (slashes == 1 && c == '/' && fgetc(in) == '\n');
101 slashes += (!slashes && c == '/' && fgetc(in) == '*');
105 err = INVALID_INPUT_FILE;
109 while ((c = fgetc(in)) == '\n');
115 if (!remove_tabs || c != '\t') {
117 if (!count && fputc('\t', out) == EOF) goto err;
119 val = fprintf(out, "%d,", c);
120 if (val < 0) goto err;
124 if (count > MAX_WIDTH) {
126 if (fputc('\n', out) == EOF) goto err;
133 if (!count && (fputc(' ', out) == EOF || fputc(' ', out) == EOF)) goto err;
134 if (fprintf(out, "0\n};\n") < 0) goto err;
136 err = (has_define && fprintf(out, bc_gen_endif, define) < 0);