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Diffstat (limited to 'developer_cmds/unifdef/unifdefall.sh')
| -rw-r--r-- | developer_cmds/unifdef/unifdefall.sh | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/developer_cmds/unifdef/unifdefall.sh b/developer_cmds/unifdef/unifdefall.sh new file mode 100644 index 0000000..6d6165a --- /dev/null +++ b/developer_cmds/unifdef/unifdefall.sh @@ -0,0 +1,79 @@ +#!/bin/sh +# +# unifdefall: remove all the #if's from a source file +# +# Copyright (c) 2002 - 2010 Tony Finch <dot@dotat.at> +# Copyright (c) 2009 - 2010 Jonathan Nieder <jrnieder@gmail.com> +# +# 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. +# +# THIS SOFTWARE IS PROVIDED BY AUTHOR 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 AUTHOR 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. +# +# $FreeBSD: src/usr.bin/unifdef/unifdefall.sh,v 1.7 2010/03/12 17:55:29 fanf Exp $ + +set -e + +unifdef="$(dirname "$0")/unifdef" +if [ ! -e "$unifdef" ] +then + unifdef=unifdef +fi + +case "$@" in +"-d "*) echo DEBUGGING 1>&2 + debug=-d + shift +esac + +basename=$(basename "$0") +tmp=$(mktemp -d "${TMPDIR:-/tmp}/$basename.XXXXXXXXXX") || exit 2 +trap 'rm -r "$tmp" || exit 2' EXIT + +export LC_ALL=C + +# list of all controlling macros +"$unifdef" $debug -s "$@" | sort | uniq >"$tmp/ctrl" +# list of all macro definitions +cpp -dM "$@" | sort | sed 's/^#define //' >"$tmp/hashdefs" +# list of defined macro names +sed 's/[^A-Za-z0-9_].*$//' <"$tmp/hashdefs" >"$tmp/alldef" +# list of undefined and defined controlling macros +comm -23 "$tmp/ctrl" "$tmp/alldef" >"$tmp/undef" +comm -12 "$tmp/ctrl" "$tmp/alldef" >"$tmp/def" +# create a sed script that extracts the controlling macro definitions +# and converts them to unifdef command-line arguments +sed 's|.*|s/^&\\(([^)]*)\\)\\{0,1\\} /-D&=/p|' <"$tmp/def" >"$tmp/script" +# create the final unifdef command +{ echo "$unifdef" $debug -k '\' + # convert the controlling undefined macros to -U arguments + sed 's/.*/-U& \\/' <"$tmp/undef" + # convert the controlling defined macros to quoted -D arguments + sed -nf "$tmp/script" <"$tmp/hashdefs" | + sed "s/'/'\\\\''/g;s/.*/'&' \\\\/" + echo '"$@"' +} >"$tmp/cmd" +case $debug in +-d) for i in ctrl hashdefs alldef undef def script cmd + do echo ==== $i + cat "$tmp/$i" + done 1>&2 +esac +# run the command we just created +sh "$tmp/cmd" "$@" |