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#!/bin/sh -
# $NetBSD: mkbuiltins,v 1.17 2002/11/24 22:35:41 christos Exp $
#
# Copyright (c) 1991, 1993
# The Regents of the University of California. All rights reserved.
# Copyright (c) 1997-2005
# Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved.
#
# This code is derived from software contributed to Berkeley by
# Kenneth Almquist.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# 3. Neither the name of the University nor the names of its contributors
# may be used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# @(#)mkbuiltins 8.2 (Berkeley) 5/4/95
tempfile=tempfile
if ! type tempfile > /dev/null 2>&1 && ! type mktemp > /dev/null 2>&1; then
_my_tempfile()
{
local index=0
while test -f "${TMPDIR:-/tmp}/builtin.$$.$index"; do
index=`expr $index + 1`
done
touch "${TMPDIR:-/tmp}/builtin.$$.$index"
echo "${TMPDIR:-/tmp}/builtin.$$.$index"
}
tempfile="_my_tempfile"
elif ! type tempfile > /dev/null 2>&1; then
tempfile="mktemp ${TMPDIR:-/tmp}/builtin.XXXXXX"
fi
trap 'rm -f $temp $temp2' EXIT
temp=$($tempfile)
temp2=$($tempfile)
builtins=$1
exec > builtins.c
cat <<\!
/*
* This file was generated by the mkbuiltins program.
*/
#include "shell.h"
#include "builtins.h"
!
< $builtins sed '/^#/d; /^$/d' > $temp
awk '{ printf "int %s(int, char **);\n", $1}' $temp
echo '
const struct builtincmd builtincmd[] = {'
awk '{ for (i = 2 ; i <= NF ; i++) {
line = $i "\t" $1
if ($i ~ /^-/)
line = $(++i) "\t" line
print line
}}' $temp | LC_COLLATE=C sort -k 1,1 | tee $temp2 | awk '{
opt = ""
if (NF > 2) {
opt = substr($2, 2)
$2 = $3
}
printf "\t{ \"%s\", %s, %d },\n", $1,
(opt ~ /n/) ? "NULL" : $2,
(opt ~ /s/) + (opt ~ /[su]/) * 2 + (opt ~ /a/) * 4
}'
echo '};'
exec > builtins.h
cat <<\!
/*
* This file was generated by the mkbuiltins program.
*/
!
sed 's/ -[a-z]*//' $temp2 | nl -b a -v 0 | LC_COLLATE=C sort -u -k 3,3 |
tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ |
awk '{ printf "#define %s (builtincmd + %d)\n", $3, $1}'
printf '\n#define NUMBUILTINS %d\n' $(wc -l < $temp2)
echo '
#define BUILTIN_SPECIAL 0x1
#define BUILTIN_REGULAR 0x2
#define BUILTIN_ASSIGN 0x4
struct builtincmd {
const char *name;
int (*builtin)(int, char **);
unsigned flags;
};
extern const struct builtincmd builtincmd[];'
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