xref: /src/contrib/ncurses/ncurses/tinfo/MKfallback.sh (revision 68ad2b0d7af2a3571c4abac9afa712f9b09b721c) 
1#!/bin/sh
2##############################################################################
3# Copyright 2020-2023,2025 Thomas E. Dickey                                  #
4# Copyright 1998-2019,2020 Free Software Foundation, Inc.                    #
5#                                                                            #
6# Permission is hereby granted, free of charge, to any person obtaining a    #
7# copy of this software and associated documentation files (the "Software"), #
8# to deal in the Software without restriction, including without limitation  #
9# the rights to use, copy, modify, merge, publish, distribute, distribute    #
10# with modifications, sublicense, and/or sell copies of the Software, and to #
11# permit persons to whom the Software is furnished to do so, subject to the  #
12# following conditions:                                                      #
13#                                                                            #
14# The above copyright notice and this permission notice shall be included in #
15# all copies or substantial portions of the Software.                        #
16#                                                                            #
17# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR #
18# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,   #
19# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL    #
20# THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER      #
21# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING    #
22# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER        #
23# DEALINGS IN THE SOFTWARE.                                                  #
24#                                                                            #
25# Except as contained in this notice, the name(s) of the above copyright     #
26# holders shall not be used in advertising or otherwise to promote the sale, #
27# use or other dealings in this Software without prior written               #
28# authorization.                                                             #
29##############################################################################
30# $Id: MKfallback.sh,v 1.32 2025/09/20 18:24:34 tom Exp $
31#
32# MKfallback.sh -- create fallback table for entry reads
33#
34# This script generates source code for a custom version of read_entry.c
35# that (instead of reading capabilities for an argument terminal type
36# from an on-disk terminfo tree) tries to match the type with one of a
37# specified list of types generated in.
38#
39
40terminfo_dir=$1
41shift
42
43terminfo_src=$1
44shift
45
46tic_path=$1
47[ -z "$tic_path" ] && tic_path=tic
48shift
49
50infocmp_path=$1
51[ -z "$infocmp_path" ] && infocmp_path=infocmp
52shift
53
54case "$tic_path" in #(vi
55/*)
56	tic_head=`echo "$tic_path" | sed -e 's,/[^/]*$,,'`
57	PATH=$tic_head:$PATH
58	export PATH
59	;;
60esac
61
62if [ $# != 0 ]; then
63	tmp_info=`pwd`/tmp_info
64	echo creating temporary terminfo directory... >&2
65
66	rm -rf "$tmp_info"
67	mkdir -p "$tmp_info"
68
69	"$tic_path" -o $tmp_info -x "$terminfo_src" >&2
70else
71	tmp_info=
72fi
73
74cat <<EOF
75/* This file was generated by $0 */
76
77/*
78 * DO NOT EDIT THIS FILE BY HAND!
79 */
80
81#include <curses.priv.h>
82
83EOF
84
85if [ "$*" ]
86then
87	opt_info=
88	[ -n "$tmp_info" ] && opt_info="-A $tmp_info"
89	cat <<EOF
90#include <tic.h>
91
92/* fallback entries for: $* */
93EOF
94	for x in "$@"
95	do
96		echo "/* $x */"
97		"$infocmp_path" -x $opt_info -E "$x" | sed -e 's/[ 	]short[ 	]/ NCURSES_INT2 /g'
98	done
99
100	cat <<EOF
101static const TERMTYPE2 fallbacks[$#] =
102{
103EOF
104	comma=""
105	for x in "$@"
106	do
107		echo "$comma /* $x */"
108		"$infocmp_path" -x $opt_info -e "$x"
109		comma=","
110	done
111
112	cat <<EOF
113};
114
115EOF
116fi
117
118cat <<EOF
119NCURSES_EXPORT(const TERMTYPE2 *)
120_nc_fallback2 (const char *name GCC_UNUSED)
121{
122EOF
123
124if [ "$*" ]
125then
126	cat <<EOF
127    const TERMTYPE2	*tp;
128
129    for (tp = fallbacks;
130	 tp < fallbacks + sizeof(fallbacks)/sizeof(TERMTYPE2);
131	 tp++) {
132	if (_nc_name_match(tp->term_names, name, "|")) {
133	    return(tp);
134	}
135    }
136EOF
137else
138	echo "	/* the fallback list is empty */";
139fi
140
141cat <<EOF
142    return((const TERMTYPE2 *)0);
143}
144
145#if NCURSES_EXT_NUMBERS
146#undef _nc_fallback
147
148NCURSES_EXPORT(const TERMTYPE *)
149_nc_fallback (const char *name)
150{
151    const TERMTYPE2 *tp = _nc_fallback2(name);
152    const TERMTYPE *result = NULL;
153    if (tp != NULL) {
154	static TERMTYPE temp;
155	_nc_export_termtype2(&temp, tp);
156	result = &temp;
157    }
158    return result;
159}
160#endif
161EOF
162
163if [ -n "$tmp_info" ] ; then
164	echo removing temporary terminfo directory... >&2
165	rm -rf "$tmp_info"
166fi
167