diff options
Diffstat (limited to 'src/mkbuiltins')
| -rw-r--r-- | src/mkbuiltins | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/src/mkbuiltins b/src/mkbuiltins new file mode 100644 index 0000000..f562ae2 --- /dev/null +++ b/src/mkbuiltins @@ -0,0 +1,115 @@ +#!/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[];' |