xref: /freebsd/contrib/bc/gen/strgen.sh (revision 1dfcff294e44d4b45813288ef4095c36abb22f0e)
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
35script="$0"
36scriptdir=$(dirname "$script")
37. "$scriptdir/../scripts/functions.sh"
38
39# See strgen.c comment on main() for what these mean. Note, however, that this
40# script generates a string literal, not a char array. To understand the
41# consequences of that, see manuals/development.md#strgenc.
42if [ $# -lt 3 ]; then
43	echo "usage: $progname input output exclude name [label [define [remove_tabs]]]"
44	exit 1
45fi
46
47input="$1"
48output="$2"
49exclude="$3"
50name="$4"
51label="$5"
52define="$6"
53remove_tabs="$7"
54
55tmpinput=$(mktemp -t "${input##*/}")
56
57if [ "$exclude" -ne 0 ]; then
58	filter_text "$input" "$tmpinput" "E"
59else
60	filter_text "$input" "$tmpinput" "A"
61fi
62
63exec < "$tmpinput"
64exec > "$output"
65
66rm -f "$tmpinput"
67
68if [ -n "$label" ]; then
69	nameline="const char *${label} = \"${input}\";"
70	labelexternline="extern const char *${label};"
71fi
72
73if [ -n "$define" ]; then
74	condstart="#if ${define}"
75	condend="#endif"
76fi
77
78if [ -n "$remove_tabs" ]; then
79	if [ "$remove_tabs" -ne 0 ]; then
80		remtabsexpr='s:	::g;'
81	fi
82fi
83
84cat<<EOF
85// Copyright (c) 2018-2021 Gavin D. Howard and contributors.
86// Licensed under the 2-clause BSD license.
87// *** AUTOMATICALLY GENERATED FROM ${input}. DO NOT MODIFY. ***
88
89${condstart}
90$labelexternline
91
92extern const char $name[];
93
94$nameline
95
96const char ${name}[] =
97$(sed -e "$remtabsexpr " -e '1,/^$/d; s:\\n:\\\\n:g; s:":\\":g; s:^:":; s:$:\\n":')
98;
99${condend}
100EOF
101
102#if [ "$exclude" -ne 0 ]; then
103	#rm -rf "$input"
104#fi
105