xref: /freebsd/contrib/bc/gen/strgen.sh (revision f7c32ed617858bcd22f8d1b03199099d50125721)
1#! /bin/sh
2#
3# SPDX-License-Identifier: BSD-2-Clause
4#
5# Copyright (c) 2018-2021 Gavin D. Howard and contributors.
6#
7# Redistribution and use in source and binary forms, with or without
8# modification, are permitted provided that the following conditions are met:
9#
10# * Redistributions of source code must retain the above copyright notice, this
11#   list of conditions and the following disclaimer.
12#
13# * Redistributions in binary form must reproduce the above copyright notice,
14#   this list of conditions and the following disclaimer in the documentation
15#   and/or other materials provided with the distribution.
16#
17# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
21# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27# POSSIBILITY OF SUCH DAMAGE.
28#
29
30export LANG=C
31export LC_CTYPE=C
32
33progname=${0##*/}
34
35# See strgen.c comment on main() for what these mean. Note, however, that this
36# script generates a string literal, not a char array. To understand the
37# consequences of that, see manuals/development.md#strgenc.
38if [ $# -lt 3 ]; then
39	echo "usage: $progname input output name [label [define [remove_tabs]]]"
40	exit 1
41fi
42
43input="$1"
44output="$2"
45name="$3"
46label="$4"
47define="$5"
48remove_tabs="$6"
49
50exec < "$input"
51exec > "$output"
52
53if [ -n "$label" ]; then
54	nameline="const char *${label} = \"${input}\";"
55	labelexternline="extern const char *${label};"
56fi
57
58if [ -n "$define" ]; then
59	condstart="#if ${define}"
60	condend="#endif"
61fi
62
63if [ -n "$remove_tabs" ]; then
64	if [ "$remove_tabs" -ne 0 ]; then
65		remtabsexpr='s:	::g;'
66	fi
67fi
68
69cat<<EOF
70// Copyright (c) 2018-2021 Gavin D. Howard and contributors.
71// Licensed under the 2-clause BSD license.
72// *** AUTOMATICALLY GENERATED FROM ${input}. DO NOT MODIFY. ***
73
74${condstart}
75$labelexternline
76
77extern const char $name[];
78
79$nameline
80
81const char ${name}[] =
82$(sed -e "$remtabsexpr " -e '1,/^$/d; s:\\n:\\\\n:g; s:":\\":g; s:^:":; s:$:\\n":')
83;
84${condend}
85EOF
86