xref: /freebsd/contrib/ncurses/include/MKkey_defs.sh (revision 21817992b3314c908ab50f0bb88d2ee750b9c4ac) 
1#! /bin/sh
2# $Id: MKkey_defs.sh,v 1.24 2024/01/19 12:26:17 tom Exp $
3##############################################################################
4# Copyright 2019-2022,2024 Thomas E. Dickey                                  #
5# Copyright 2001-2013,2017 Free Software Foundation, Inc.                    #
6#                                                                            #
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8# copy of this software and associated documentation files (the "Software"), #
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11# with modifications, sublicense, and/or sell copies of the Software, and to #
12# permit persons to whom the Software is furnished to do so, subject to the  #
13# following conditions:                                                      #
14#                                                                            #
15# The above copyright notice and this permission notice shall be included in #
16# all copies or substantial portions of the Software.                        #
17#                                                                            #
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27# holders shall not be used in advertising or otherwise to promote the sale, #
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29# authorization.                                                             #
30##############################################################################
31#
32# MKkey_defs.sh -- generate function-key definitions for curses.h
33#
34# Author: Thomas E. Dickey 2001
35#
36# Extract function-key definitions from the Caps file
37#
38: "${AWK-awk}"
39
40test $# = 0 && set Caps
41
42data=data$$
43pass1=pass1_$$
44pass2=pass2_$$
45pass3=pass3_$$
46pass4=pass4_$$
47trap 'rm -f $data pass[1234]_$$; exit 1' 1 2 3 15
48trap 'rm -f $data pass[1234]_$$' 0
49
50# change repeated tabs (used for readability) to single tabs (needed to make
51# awk see the right field alignment of the corresponding columns):
52if sort -k 6 "$@" >$data 2>/dev/null
53then
54	# POSIX
55	sed -e 's/[	][	]*/	/g' "$@" |sort -n -k 6 >$data
56elif sort -n +5 "$@" >$data 2>/dev/null
57then
58	# SunOS (and SVr4, marked as obsolete but still recognized)
59	sed -e 's/[	][	]*/	/g' "$@" |sort -n +5 >$data
60else
61	echo "Your sort utility is broken.  Please install one that works." >&2
62	exit 1
63fi
64
65# add keys that we generate automatically:
66cat >>$data <<EOF
67key_resize	kr1	str	R1	KEY_RESIZE	+	NCURSES_SIGWINCH 	Terminal resize event
68EOF
69
70THIS=./`basename "$0"`
71
72cat <<EOF
73/*
74 * These definitions were generated by $THIS $*
75 */
76EOF
77
78# KEY_RESET
79maxkey=345
80
81for pass in 1 2 3 4
82do
83
84output=pass${pass}_$$
85
86${AWK-awk} >$output <$data '
87function print_cols(text,cols) {
88	printf "%s", text
89	len = length(text);
90	while (len < cols) {
91		printf "	"
92		len += 8;
93	}
94}
95function decode(keycode) {
96	result = 0;
97	if (substr(keycode, 1, 2) == "0x") {
98		digits="0123456789abcdef";
99	} else if (substr(keycode, 1, 1) == "0") {
100		digits="01234567";
101	} else {
102		digits="0123456789";
103	}
104	while (length(keycode) != 0) {
105		digit=substr(keycode, 1, 1);
106		keycode=substr(keycode, 2);
107		result = result * length(digits) + index(digits, digit) - 1;
108	}
109	return result;
110}
111
112BEGIN	{
113	maxkey='$maxkey';
114	pass='$pass';
115	key_max=1;
116	bits=1;
117	while (key_max < maxkey) {
118		bits = bits + 1;
119		key_max = (key_max * 2) + 1;
120	}
121	octal_fmt = sprintf ("%%0%do", (bits + 2) / 3 + 1);
122}
123
124/^$/		{next;}
125/^#/		{next;}
126/^capalias/	{next;}
127/^infoalias/	{next;}
128/^used_by/	{next;}
129/^userdef/	{next;}
130
131$5 != "-" && $6 != "-" {
132		if ($6 == "+") {
133			if (pass == 1 || pass == 2)
134				next;
135			thiskey=maxkey + 1;
136		} else {
137			if (pass == 3)
138				next;
139			thiskey=decode($6);
140		}
141		if (thiskey > maxkey)
142			maxkey = thiskey;
143		if (pass == 2 || pass == 3) {
144			showkey=sprintf(octal_fmt, thiskey);
145			ifdef = 0;
146			if (index($7,"NCURSES_") == 1) {
147				ifdef = 1;
148				printf "\n";
149				printf "#if %s\n", $7;
150			}
151			if ($5 == "KEY_F(0)" ) {
152				printf "#define "
153				print_cols("KEY_F0", 16);
154				print_cols(showkey, 16);
155				print "/* Function keys.  Space for 64 */";
156				printf "#define "
157				print_cols("KEY_F(n)", 16);
158				print_cols("(KEY_F0+(n))", 16);
159				print "/* Value of function key n */"
160			} else {
161				printf "#define "
162				print_cols($5, 16);
163				print_cols(showkey, 16);
164				printf "/*"
165				for (i = 8; i <= NF; i++)
166					printf " %s", $i
167				print " */"
168			}
169			if (ifdef != 0) {
170				printf "#endif\n";
171			}
172		}
173	}
174END	{
175		if (pass == 1) {
176			print maxkey;
177		} else if (pass == 4) {
178			print "";
179			printf "#define ";
180			print_cols("KEY_MAX", 16);
181			result = sprintf (octal_fmt, key_max);
182			print_cols(result, 16);
183			printf "/* Maximum key value is ";
184			printf octal_fmt, maxkey;
185			print " */";
186		}
187	}
188'
189if test $pass = 1 ; then
190	maxkey=`cat $pass1`
191fi
192
193done
194
195cat $pass2
196cat $pass3
197cat $pass4
198