xref: /csrg-svn/bin/sh/mkbuiltins (revision 69273)

#!/bin/sh -
#
# Copyright (c) 1991, 1993
#	The Regents of the University of California.  All rights reserved.
#
# This code is derived from software contributed to Berkeley by
# Kenneth Almquist.
#
# %sccs.include.redist.sh%
#
#	@(#)mkbuiltins	8.2 (Berkeley) 05/04/95

temp=/tmp/ka$$
havejobs=0
if grep '^#define JOBS[	 ]*1' shell.h > /dev/null
then	havejobs=1
fi
havehist=1
if [ "X$1" = "X-h" ]; then
	havehist=0
	shift
fi
objdir=$1
exec > ${objdir}/builtins.c
cat <<\!
/*
 * This file was generated by the mkbuiltins program.
 */

#include "shell.h"
#include "builtins.h"

!
awk '/^[^#]/ {if(('$havejobs' || $2 != "-j") && ('$havehist' || $2 != "-h")) \
    print $0}' builtins.def | sed 's/-j//' > $temp
awk '{	printf "int %s();\n", $1}' $temp
echo '
int (*const builtinfunc[])() = {'
awk '/^[^#]/ {	printf "\t%s,\n", $1}' $temp
echo '};

const struct builtincmd builtincmd[] = {'
awk '{	for (i = 2 ; i <= NF ; i++) {
		printf "\t{ \"%s\", %d },\n",  $i, NR-1
	}}' $temp
echo '	{ NULL, 0 }
};'

exec > ${objdir}/builtins.h
cat <<\!
/*
 * This file was generated by the mkbuiltins program.
 */

#include <sys/cdefs.h>
!
tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ < $temp |
	awk '{	printf "#define %s %d\n", $1, NR-1}'
echo '
struct builtincmd {
      char *name;
      int code;
};

extern int (*const builtinfunc[])();
extern const struct builtincmd builtincmd[];'
rm -f $temp