Importing usr.bin/unifdef
No Minix-specific changes needed. Change-Id: Icb828fb19f5f3a411a3f2e9dde35c2da30a04342
This commit is contained in:
parent
1e33498f8c
commit
b6f0c43626
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@ -524,6 +524,8 @@
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./usr/bin/uname minix-sys
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./usr/bin/uname minix-sys
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./usr/bin/uncompress minix-sys
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./usr/bin/uncompress minix-sys
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./usr/bin/unexpand minix-sys
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./usr/bin/unexpand minix-sys
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./usr/bin/unifdef minix-sys
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./usr/bin/unifdefall minix-sys
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./usr/bin/uniq minix-sys
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./usr/bin/uniq minix-sys
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./usr/bin/units minix-sys
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./usr/bin/units minix-sys
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./usr/bin/unlzma minix-sys
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./usr/bin/unlzma minix-sys
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@ -2096,6 +2098,8 @@
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./usr/man/man1/uname.1 minix-sys
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./usr/man/man1/uname.1 minix-sys
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./usr/man/man1/uncompress.1 minix-sys
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./usr/man/man1/uncompress.1 minix-sys
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./usr/man/man1/unexpand.1 minix-sys
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./usr/man/man1/unexpand.1 minix-sys
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./usr/man/man1/unifdef.1 minix-sys
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./usr/man/man1/unifdefall.1 minix-sys
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./usr/man/man1/uniq.1 minix-sys
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./usr/man/man1/uniq.1 minix-sys
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./usr/man/man1/units.1 minix-sys
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./usr/man/man1/units.1 minix-sys
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./usr/man/man1/unlzma.1 minix-sys
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./usr/man/man1/unlzma.1 minix-sys
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@ -219,6 +219,7 @@
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2012/10/17 12:00:00,usr.bin/tr
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2012/10/17 12:00:00,usr.bin/tr
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2012/10/17 12:00:00,usr.bin/tsort
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2012/10/17 12:00:00,usr.bin/tsort
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2012/10/17 12:00:00,usr.bin/tty
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2012/10/17 12:00:00,usr.bin/tty
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2012/10/17 12:00:00,usr.bin/unifdef
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2010/10/06 07:59:18,usr.bin/uniq
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2010/10/06 07:59:18,usr.bin/uniq
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2013/10/23 12:00:00,usr.bin/units
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2013/10/23 12:00:00,usr.bin/units
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2012/10/17 12:00:00,usr.bin/unvis
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2012/10/17 12:00:00,usr.bin/unvis
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@ -26,7 +26,7 @@ SUBDIR= asa \
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shuffle sed seq \
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shuffle sed seq \
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sort split stat su \
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sort split stat su \
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tee tic tput \
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tee tic tput \
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tr tsort tty unexpand \
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tr tsort tty unexpand unifdef \
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toproto \
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toproto \
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uniq units unvis unzip users \
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uniq units unvis unzip users \
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uuidgen vis \
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uuidgen vis \
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10
usr.bin/unifdef/Makefile
Normal file
10
usr.bin/unifdef/Makefile
Normal file
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@ -0,0 +1,10 @@
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# $NetBSD: Makefile,v 1.6 2003/08/01 11:51:14 lukem Exp $
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# @(#)Makefile 8.1 (Berkeley) 6/6/93
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PROG= unifdef
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SCRIPTS=unifdefall.sh
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MLINKS= unifdef.1 unifdefall.1
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.include <bsd.prog.mk>
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347
usr.bin/unifdef/unifdef.1
Normal file
347
usr.bin/unifdef/unifdef.1
Normal file
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@ -0,0 +1,347 @@
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.\" $NetBSD: unifdef.1,v 1.12 2009/06/11 03:16:34 ginsbach Exp $
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.\"
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.\" Copyright (c) 1985, 1991, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" This code is derived from software contributed to Berkeley by
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.\" Dave Yost.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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|
.\" modification, are permitted provided that the following conditions
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|
.\" are met:
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|
.\" 1. Redistributions of source code must retain the above copyright
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|
.\" notice, this list of conditions and the following disclaimer.
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|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
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|
.\" notice, this list of conditions and the following disclaimer in the
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|
.\" documentation and/or other materials provided with the distribution.
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.\" 3. Neither the name of the University nor the names of its contributors
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|
.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||||
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
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|
.\" 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
|
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" Portions of this code (support for #if and #elif) are Copyright (c)
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.\" 2002, 2003 Tony Finch.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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|
.\" 1. Redistributions of source code must retain the above copyright
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||||||
|
.\" notice, this list of conditions and the following disclaimer.
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|
.\" 2. Redistributions in binary form must reproduce the above copyright
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|
.\" notice, this list of conditions and the following disclaimer in the
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|
.\" documentation and/or other materials provided with the distribution.
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|
.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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|
.\" This product includes software developed by the University of
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|
.\" California, Berkeley and its contributors.
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|
.\" 4. Neither the name of the University nor the names of its contributors
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|
.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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|
.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||||
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
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|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||||
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)unifdef.1 8.2 (Berkeley) 4/1/94
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.\" $dotat: things/unifdef.1,v 1.45 2003/01/20 14:37:08 fanf2 Exp $
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.\" $FreeBSD: src/usr.bin/unifdef/unifdef.1,v 1.19 2003/01/20 12:41:41 fanf Exp $
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.\"
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.Dd June 5, 2009
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.Dt UNIFDEF 1
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.Os
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.Sh NAME
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.Nm unifdef ,
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.Nm unifdefall
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.Nd remove preprocessor conditionals from code
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.Sh SYNOPSIS
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.Nm
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|
.Op Fl ceklst
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.Op Fl I Ns Ar path
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.Op Fl D Ns Ar sym Ns Op = Ns Ar val
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.Op Fl U Ns Ar sym
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.Op Fl iD Ns Ar sym Ns Op = Ns Ar val
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.Op Fl iU Ns Ar sym
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.Ar ...
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.Op Fl o Ar output
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.Op Ar file
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.Nm unifdefall
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|
.Op Fl I Ns Ar path
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.Ar ...
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.Ar file
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.Sh DESCRIPTION
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|
The
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.Nm
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|
utility selectively processes conditional
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|
.Xr cpp 1
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|
directives.
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|
It removes from a file both the directives and any additional text
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|
that they specify should be removed, while otherwise leaving the
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|
file alone.
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|
.Pp
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|
The
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.Nm
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|
utility acts on
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|
.Ic #if , #ifdef , #ifndef , #elif , #else ,
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|
and
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|
.Ic #endif
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|
lines,
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|
and it understands only the commonly-used subset
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|
of the expression syntax for
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|
.Ic #if
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|
and
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|
.Ic #elif
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|
lines.
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|
It handles
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|
integer values of symbols defined on the command line,
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|
the
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|
.Fn defined
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|
operator applied to symbols defined or undefined on the command line,
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|
the operators
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||||||
|
.Ic \&! , \*[Lt] , \*[Gt] , \*[Lt]= , \*[Gt]= , == , != , \*[Am]\*[Am] , || ,
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||||||
|
and parenthesized expressions.
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||||||
|
Anything that it does not understand is passed through unharmed.
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||||||
|
It only processes
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||||||
|
.Ic #ifdef
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||||||
|
and
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||||||
|
.Ic #ifndef
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||||||
|
directives if the symbol is specified on the command line,
|
||||||
|
otherwise they are also passed through unchanged.
|
||||||
|
By default, it ignores
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||||||
|
.Ic #if
|
||||||
|
and
|
||||||
|
.Ic #elif
|
||||||
|
lines with constant expressions,
|
||||||
|
or they may be processed by specifying the
|
||||||
|
.Fl k
|
||||||
|
flag on the command line.
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||||||
|
.Pp
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||||||
|
The
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|
.Nm
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||||||
|
utility also understands just enough about C
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|
to know when one of the directives is inactive
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||||||
|
because it is inside
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|
a comment,
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||||||
|
or affected by a backslash-continued line.
|
||||||
|
It spots unusually-formatted preprocessor directives
|
||||||
|
and knows when the layout is too odd to handle.
|
||||||
|
.Pp
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||||||
|
A script called
|
||||||
|
.Nm unifdefall
|
||||||
|
can be used to remove all conditional
|
||||||
|
.Xr cpp 1
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||||||
|
directives from a file.
|
||||||
|
It uses
|
||||||
|
.Nm Fl s
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||||||
|
and
|
||||||
|
.Nm cpp Fl dM
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||||||
|
to get lists of all the controlling symbols
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||||||
|
and their definitions (or lack thereof),
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|
then invokes
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|
.Nm
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|
with appropriate arguments to process the file.
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|
.Pp
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||||||
|
Available options:
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|
.Bl -tag -width indent -compact
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|
.It Fl D Ns Ar sym Ns Op = Ns Ar val
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|
Specify that a symbol is defined,
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|
and optionally specify what value to give it
|
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|
for the purpose of handling
|
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|
.Ic #if
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|
and
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|
.Ic #elif
|
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|
directives.
|
||||||
|
.It Fl U Ns Ar sym
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||||||
|
Specify that a symbol is undefined.
|
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|
If the same symbol appears in more than one argument,
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|
the last occurrence dominates.
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|
.It Fl c
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|
If the
|
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|
.Fl c
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|
flag is specified,
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|
then the operation of
|
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|
.Nm
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|
is complemented,
|
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|
i.e., the lines that would have been removed or blanked
|
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|
are retained and vice versa.
|
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|
.It Fl e
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|
Because
|
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|
.Nm
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|
processes its input one line at a time,
|
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|
it cannot remove preprocessor directives that span more than one line.
|
||||||
|
The most common example of this is a directive with a multi-line
|
||||||
|
comment hanging off its right hand end.
|
||||||
|
By default,
|
||||||
|
if
|
||||||
|
.Nm
|
||||||
|
has to process such a directive,
|
||||||
|
it will complain that the line is too obfuscated.
|
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|
The
|
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|
.Fl e
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|
option changes the behaviour so that,
|
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|
where possible,
|
||||||
|
such lines are left unprocessed instead of reporting an error.
|
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|
.It Fl k
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||||||
|
Process
|
||||||
|
.Ic #if
|
||||||
|
and
|
||||||
|
.Ic #elif
|
||||||
|
lines with constant expressions.
|
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|
By default, sections controlled by such lines are passed through unchanged
|
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|
because they typically start
|
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|
.Dq Li "#if 0"
|
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|
and are used as a kind of comment to sketch out future or past development.
|
||||||
|
It would be rude to strip them out, just as it would be for normal comments.
|
||||||
|
.It Fl l
|
||||||
|
Replace removed lines with blank lines
|
||||||
|
instead of deleting them.
|
||||||
|
.It Fl o Ar output
|
||||||
|
The argument given is the name of an
|
||||||
|
.Ar output
|
||||||
|
file to be used instead of the standard output.
|
||||||
|
This file can be the same as the input file.
|
||||||
|
.It Fl s
|
||||||
|
Instead of processing the input file as usual,
|
||||||
|
this option causes
|
||||||
|
.Nm
|
||||||
|
to produce a list of symbols that appear in expressions
|
||||||
|
that
|
||||||
|
.Nm
|
||||||
|
understands.
|
||||||
|
It is useful in conjunction with the
|
||||||
|
.Fl dM
|
||||||
|
option of
|
||||||
|
.Xr cpp 1
|
||||||
|
for creating
|
||||||
|
.Nm
|
||||||
|
command lines.
|
||||||
|
.It Fl t
|
||||||
|
Disables parsing for C comments
|
||||||
|
and line continuations,
|
||||||
|
which is useful
|
||||||
|
for plain text.
|
||||||
|
.It Fl iD Ns Ar sym Ns Op = Ns Ar val
|
||||||
|
.It Fl iU Ns Ar sym
|
||||||
|
Ignore
|
||||||
|
.Ic #ifdef Ns s .
|
||||||
|
If your C code uses
|
||||||
|
.Ic #ifdef Ns s
|
||||||
|
to delimit non-C lines,
|
||||||
|
such as comments
|
||||||
|
or code which is under construction,
|
||||||
|
then you must tell
|
||||||
|
.Nm
|
||||||
|
which symbols are used for that purpose so that it will not try to parse
|
||||||
|
comments
|
||||||
|
and line continuations
|
||||||
|
inside those
|
||||||
|
.Ic #ifdef Ns s .
|
||||||
|
One specifies ignored symbols with
|
||||||
|
.Fl iD Ns Ar sym Ns Oo = Ns Ar val Oc
|
||||||
|
and
|
||||||
|
.Fl iU Ns Ar sym
|
||||||
|
similar to
|
||||||
|
.Fl D Ns Ar sym Ns Op = Ns Ar val
|
||||||
|
and
|
||||||
|
.Fl U Ns Ar sym
|
||||||
|
above.
|
||||||
|
.It Fl I Ns Ar path
|
||||||
|
Specifies to
|
||||||
|
.Nm unifdefall
|
||||||
|
an additional place to look for
|
||||||
|
.Ic #include
|
||||||
|
files.
|
||||||
|
This option is ignored by
|
||||||
|
.Nm
|
||||||
|
for compatibility with
|
||||||
|
.Xr cpp 1
|
||||||
|
and to simplify the implementation of
|
||||||
|
.Nm unifdefall .
|
||||||
|
.El
|
||||||
|
.Pp
|
||||||
|
The
|
||||||
|
.Nm
|
||||||
|
utility copies its output to
|
||||||
|
.Em stdout
|
||||||
|
and will take its input from
|
||||||
|
.Em stdin
|
||||||
|
if no
|
||||||
|
.Ar file
|
||||||
|
argument is given.
|
||||||
|
.Pp
|
||||||
|
The
|
||||||
|
.Nm
|
||||||
|
utility works nicely with the
|
||||||
|
.Fl D Ns Ar sym
|
||||||
|
option of
|
||||||
|
.Xr diff 1 .
|
||||||
|
.Sh DIAGNOSTICS
|
||||||
|
.Bl -item
|
||||||
|
.It
|
||||||
|
Too many levels of nesting.
|
||||||
|
.It
|
||||||
|
Inappropriate
|
||||||
|
.Ic #elif ,
|
||||||
|
.Ic #else
|
||||||
|
or
|
||||||
|
.Ic #endif .
|
||||||
|
.It
|
||||||
|
Obfuscated preprocessor control line.
|
||||||
|
.It
|
||||||
|
Premature
|
||||||
|
.Dv EOF
|
||||||
|
(with the line number of the most recent unterminated
|
||||||
|
.Ic #if ) .
|
||||||
|
.It
|
||||||
|
.Dv EOF
|
||||||
|
in comment.
|
||||||
|
.El
|
||||||
|
.Pp
|
||||||
|
The
|
||||||
|
.Nm
|
||||||
|
utility exits 0 if the output is an exact copy of the input,
|
||||||
|
1 if not, and 2 if in trouble.
|
||||||
|
.Sh SEE ALSO
|
||||||
|
.Xr cpp 1 ,
|
||||||
|
.Xr diff 1
|
||||||
|
.Sh HISTORY
|
||||||
|
The
|
||||||
|
.Nm
|
||||||
|
command appeared in
|
||||||
|
.Bx 4.3 .
|
||||||
|
.Tn ANSI\~C
|
||||||
|
support was added in
|
||||||
|
.Fx 4.7 .
|
||||||
|
.Sh BUGS
|
||||||
|
Expression evaluation is very limited.
|
||||||
|
.Pp
|
||||||
|
Preprocessor control lines split across more than one physical line
|
||||||
|
(because of comments or backslash-newline)
|
||||||
|
cannot be handled in every situation.
|
||||||
|
.Pp
|
||||||
|
Trigraphs are not recognized.
|
||||||
|
.Pp
|
||||||
|
There is no support for symbols with different definitions at
|
||||||
|
different points in the source file.
|
||||||
|
.Pp
|
||||||
|
The text-mode and ignore functionality does not correspond to modern
|
||||||
|
.Xr cpp 1
|
||||||
|
behaviour.
|
1037
usr.bin/unifdef/unifdef.c
Normal file
1037
usr.bin/unifdef/unifdef.c
Normal file
File diff suppressed because it is too large
Load diff
29
usr.bin/unifdef/unifdefall.sh
Normal file
29
usr.bin/unifdef/unifdefall.sh
Normal file
|
@ -0,0 +1,29 @@
|
||||||
|
#!/bin/sh
|
||||||
|
#
|
||||||
|
# remove all the #if's from a source file
|
||||||
|
#
|
||||||
|
# $dotat: things/unifdefall.sh,v 1.10 2002/09/24 19:52:11 fanf2 Exp $
|
||||||
|
# $FreeBSD: src/usr.bin/unifdef/unifdefall.sh,v 1.2 2002/09/24 19:50:03 fanf Exp $
|
||||||
|
|
||||||
|
set -e
|
||||||
|
|
||||||
|
basename=`basename $0`
|
||||||
|
tmp=`mktemp -d -t $basename` || exit 2
|
||||||
|
|
||||||
|
unifdef -s "$@" | sort | uniq > $tmp/ctrl
|
||||||
|
cpp -dM "$@" | sort |
|
||||||
|
sed -Ee 's/^#define[ ]+(.*[^ ])[ ]*$/\1/' > $tmp/hashdefs
|
||||||
|
sed -Ee 's/^([A-Za-z0-9_]+).*$/\1/' $tmp/hashdefs > $tmp/alldef
|
||||||
|
comm -23 $tmp/ctrl $tmp/alldef > $tmp/undef
|
||||||
|
comm -12 $tmp/ctrl $tmp/alldef > $tmp/def
|
||||||
|
|
||||||
|
echo unifdef -k \\ > $tmp/cmd
|
||||||
|
sed -Ee 's/^(.*)$/-U\1 \\/' $tmp/undef >> $tmp/cmd
|
||||||
|
while read sym
|
||||||
|
do sed -Ee '/^('"$sym"')([(][^)]*[)])?([ ]+(.*))?$/!d;s//-D\1=\4/' $tmp/hashdefs
|
||||||
|
done < $tmp/def |
|
||||||
|
sed -Ee 's/\\/\\\\/g;s/"/\\"/g;s/^/"/;s/$/" \\/' >> $tmp/cmd
|
||||||
|
echo '"$@"' >> $tmp/cmd
|
||||||
|
sh $tmp/cmd "$@"
|
||||||
|
|
||||||
|
rm -r $tmp
|
Loading…
Reference in a new issue