1#!/bin/sh
2# $NetBSD: genhash,v 1.9 2017/01/11 20:53:52 roy Exp $
3
4# Copyright (c) 2009, 2011 The NetBSD Foundation, Inc.
5#
6# This code is derived from software contributed to The NetBSD Foundation
7# by Roy Marples.
8#
9# Redistribution and use in source and binary forms, with or without
10# modification, are permitted provided that the following conditions
11# are met:
12# 1. Redistributions of source code must retain the above copyright
13#    notice, this list of conditions and the following disclaimer.
14# 2. Redistributions in binary form must reproduce the above copyright
15#    notice, this list of conditions and the following disclaimer in the
16#    documentation and/or other materials provided with the distribution.
17#
18# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28
29
30# Generate string and hash tables for our terminfo strings in term.h
31# We don't expose the hash or tables directly, but instead via functions.
32# This allows us to freely change how we hash or store our string tables
33# in the future.
34
35set -e
36: ${TOOL_AWK:=awk}
37: ${TOOL_NBPERF:=nbperf}
38: ${TOOL_SED:=sed}
39
40TERMH=${1:-term.h}
41
42genent()
43{
44	local name=$1 NAME=$2 len=
45
46	# Calculate the maximum word length plus terminator
47	len=$($TOOL_SED -e "1,/enum TI${NAME}/d" -e '/};/,$d' \
48            -e 's/.*TICODE_\([^,]*\).*/\1X/' $TERMH | \
49	    $TOOL_AWK \
50	    'BEGIN {L=0} {if (length($1)>L) L=length($1)} END {print L}')
51
52	echo
53	echo "static const char _ti_${name}ids[][${len}] = {"
54	$TOOL_SED -e "1,/enum TI${NAME}/d" -e '/};/,$d' \
55            -e 's/.*TICODE_\([^,]*\).*/	"\1",/' $TERMH
56	echo "};"
57	echo
58	$TOOL_SED -e "1,/enum TI${NAME}/d" -e '/};/,$d' \
59	    -e 's/.*TICODE_\([^,]*\).*/\1/' $TERMH | \
60	    $TOOL_NBPERF -p -s -n _ti_${name}hash;
61
62	cat <<EOF
63
64const char *
65_ti_${name}id(ssize_t idx)
66{
67
68	if ((size_t)idx >= __arraycount(_ti_${name}ids))
69		return NULL;
70	return _ti_${name}ids[idx];
71}
72
73ssize_t
74_ti_${name}index(const char *key)
75{
76	uint32_t idx;
77
78	idx = _ti_${name}hash((const unsigned char *)key, strlen(key));
79	if (idx >= __arraycount(_ti_${name}ids) ||
80	    strcmp(key, _ti_${name}ids[idx]) != 0)
81		return -1;
82	return idx;
83}
84EOF
85}
86
87cat <<EOF
88/* DO NOT EDIT
89 * Automatically generated from term.h */
90
91#if HAVE_NBTOOL_CONFIG_H
92#include "nbtool_config.h"
93#endif
94
95#include <stdint.h>
96#include <stdlib.h>
97#include <string.h>
98#include <term_private.h>
99#include <term.h>
100EOF
101
102genent flag FLAG
103genent num NUM
104genent str STR
105