From b3049d9c200fc8bbb91d76b8ecdae7cc7188b3c2 Mon Sep 17 00:00:00 2001 From: Kiyoshi Aman Date: Thu, 20 Jun 2019 01:53:37 -0500 Subject: usr.bin/unifdef: this somehow missed the not-POSIX purge --- usr.bin/unifdef/unifdef.1 | 347 -------------- usr.bin/unifdef/unifdef.c | 1037 ----------------------------------------- usr.bin/unifdef/unifdefall.sh | 29 -- 3 files changed, 1413 deletions(-) delete mode 100644 usr.bin/unifdef/unifdef.1 delete mode 100644 usr.bin/unifdef/unifdef.c delete mode 100644 usr.bin/unifdef/unifdefall.sh diff --git a/usr.bin/unifdef/unifdef.1 b/usr.bin/unifdef/unifdef.1 deleted file mode 100644 index 7319245..0000000 --- a/usr.bin/unifdef/unifdef.1 +++ /dev/null @@ -1,347 +0,0 @@ -.\" $NetBSD: unifdef.1,v 1.13 2017/07/03 21:34:22 wiz Exp $ -.\" -.\" Copyright (c) 1985, 1991, 1993 -.\" The Regents of the University of California. All rights reserved. -.\" -.\" This code is derived from software contributed to Berkeley by -.\" Dave Yost. -.\" -.\" 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. -.\" -.\" Portions of this code (support for #if and #elif) are Copyright (c) -.\" 2002, 2003 Tony Finch. -.\" -.\" 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. All advertising materials mentioning features or use of this software -.\" must display the following acknowledgement: -.\" This product includes software developed by the University of -.\" California, Berkeley and its contributors. -.\" 4. 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. -.\" -.\" @(#)unifdef.1 8.2 (Berkeley) 4/1/94 -.\" $dotat: things/unifdef.1,v 1.45 2003/01/20 14:37:08 fanf2 Exp $ -.\" $FreeBSD: src/usr.bin/unifdef/unifdef.1,v 1.19 2003/01/20 12:41:41 fanf Exp $ -.\" -.Dd June 5, 2009 -.Dt UNIFDEF 1 -.Os -.Sh NAME -.Nm unifdef , -.Nm unifdefall -.Nd remove preprocessor conditionals from code -.Sh SYNOPSIS -.Nm -.Op Fl ceklst -.Op Fl I Ns Ar path -.Op Fl D Ns Ar sym Ns Op = Ns Ar val -.Op Fl U Ns Ar sym -.Op Fl iD Ns Ar sym Ns Op = Ns Ar val -.Op Fl iU Ns Ar sym -.Ar ... -.Op Fl o Ar output -.Op Ar file -.Nm unifdefall -.Op Fl I Ns Ar path -.Ar ... -.Ar file -.Sh DESCRIPTION -The -.Nm -utility selectively processes conditional -.Xr cpp 1 -directives. -It removes from a file both the directives and any additional text -that they specify should be removed, while otherwise leaving the -file alone. -.Pp -The -.Nm -utility acts on -.Ic #if , #ifdef , #ifndef , #elif , #else , -and -.Ic #endif -lines, -and it understands only the commonly-used subset -of the expression syntax for -.Ic #if -and -.Ic #elif -lines. -It handles -integer values of symbols defined on the command line, -the -.Fn defined -operator applied to symbols defined or undefined on the command line, -the operators -.Ic \&! , < , > , <= , >= , == , != , && , || , -and parenthesized expressions. -Anything that it does not understand is passed through unharmed. -It only processes -.Ic #ifdef -and -.Ic #ifndef -directives if the symbol is specified on the command line, -otherwise they are also passed through unchanged. -By default, it ignores -.Ic #if -and -.Ic #elif -lines with constant expressions, -or they may be processed by specifying the -.Fl k -flag on the command line. -.Pp -The -.Nm -utility also understands just enough about C -to know when one of the directives is inactive -because it is inside -a comment, -or affected by a backslash-continued line. -It spots unusually-formatted preprocessor directives -and knows when the layout is too odd to handle. -.Pp -A script called -.Nm unifdefall -can be used to remove all conditional -.Xr cpp 1 -directives from a file. -It uses -.Nm Fl s -and -.Nm cpp Fl dM -to get lists of all the controlling symbols -and their definitions (or lack thereof), -then invokes -.Nm -with appropriate arguments to process the file. -.Pp -Available options: -.Bl -tag -width indent -compact -.It Fl D Ns Ar sym Ns Op = Ns Ar val -Specify that a symbol is defined, -and optionally specify what value to give it -for the purpose of handling -.Ic #if -and -.Ic #elif -directives. -.It Fl U Ns Ar sym -Specify that a symbol is undefined. -If the same symbol appears in more than one argument, -the last occurrence dominates. -.It Fl c -If the -.Fl c -flag is specified, -then the operation of -.Nm -is complemented, -i.e., the lines that would have been removed or blanked -are retained and vice versa. -.It Fl e -Because -.Nm -processes its input one line at a time, -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. -The -.Fl e -option changes the behaviour so that, -where possible, -such lines are left unprocessed instead of reporting an error. -.It Fl k -Process -.Ic #if -and -.Ic #elif -lines with constant expressions. -By default, sections controlled by such lines are passed through unchanged -because they typically start -.Dq Li "#if 0" -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. diff --git a/usr.bin/unifdef/unifdef.c b/usr.bin/unifdef/unifdef.c deleted file mode 100644 index 702e3ec..0000000 --- a/usr.bin/unifdef/unifdef.c +++ /dev/null @@ -1,1037 +0,0 @@ -/* $NetBSD: unifdef.c,v 1.22 2012/10/13 18:26:03 christos Exp $ */ - -/* - * Copyright (c) 1985, 1993 - * The Regents of the University of California. All rights reserved. - * - * This code is derived from software contributed to Berkeley by - * Dave Yost. It was rewritten to support ANSI C by Tony Finch. - * - * 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. - */ - -/* - * Copyright (c) 2002, 2003 Tony Finch - * - * This code is derived from software contributed to Berkeley by - * Dave Yost. It was rewritten to support ANSI C by Tony Finch. - * - * 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. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. 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. - */ - -#include - -#ifndef lint -#if 0 -static const char copyright[] = -"@(#) Copyright (c) 1985, 1993\n\ - The Regents of the University of California. All rights reserved.\n"; -#endif -#ifdef __IDSTRING -__IDSTRING(Berkeley, "@(#)unifdef.c 8.1 (Berkeley) 6/6/93"); -__IDSTRING(NetBSD, "$NetBSD: unifdef.c,v 1.22 2012/10/13 18:26:03 christos Exp $"); -__IDSTRING(dotat, "$dotat: things/unifdef.c,v 1.161 2003/07/01 15:32:48 fanf2 Exp $"); -#endif -#endif /* not lint */ -#ifdef __FBSDID -__FBSDID("$FreeBSD: src/usr.bin/unifdef/unifdef.c,v 1.18 2003/07/01 15:30:43 fanf Exp $"); -#endif - -/* - * unifdef - remove ifdef'ed lines - * - * Wishlist: - * provide an option which will append the name of the - * appropriate symbol after #else's and #endif's - * provide an option which will check symbols after - * #else's and #endif's to see that they match their - * corresponding #ifdef or #ifndef - * generate #line directives in place of deleted code - * - * The first two items above require better buffer handling, which would - * also make it possible to handle all "dodgy" directives correctly. - */ - -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include - -#include "stdbool.h" - -/* types of input lines: */ -typedef enum { - LT_TRUEI, /* a true #if with ignore flag */ - LT_FALSEI, /* a false #if with ignore flag */ - LT_IF, /* an unknown #if */ - LT_TRUE, /* a true #if */ - LT_FALSE, /* a false #if */ - LT_ELIF, /* an unknown #elif */ - LT_ELTRUE, /* a true #elif */ - LT_ELFALSE, /* a false #elif */ - LT_ELSE, /* #else */ - LT_ENDIF, /* #endif */ - LT_DODGY, /* flag: directive is not on one line */ - LT_DODGY_LAST = LT_DODGY + LT_ENDIF, - LT_PLAIN, /* ordinary line */ - LT_EOF, /* end of file */ - LT_COUNT -} Linetype; - -static char const * const linetype_name[] = { - "TRUEI", "FALSEI", "IF", "TRUE", "FALSE", - "ELIF", "ELTRUE", "ELFALSE", "ELSE", "ENDIF", - "DODGY TRUEI", "DODGY FALSEI", - "DODGY IF", "DODGY TRUE", "DODGY FALSE", - "DODGY ELIF", "DODGY ELTRUE", "DODGY ELFALSE", - "DODGY ELSE", "DODGY ENDIF", - "PLAIN", "EOF" -}; - -/* state of #if processing */ -typedef enum { - IS_OUTSIDE, - IS_FALSE_PREFIX, /* false #if followed by false #elifs */ - IS_TRUE_PREFIX, /* first non-false #(el)if is true */ - IS_PASS_MIDDLE, /* first non-false #(el)if is unknown */ - IS_FALSE_MIDDLE, /* a false #elif after a pass state */ - IS_TRUE_MIDDLE, /* a true #elif after a pass state */ - IS_PASS_ELSE, /* an else after a pass state */ - IS_FALSE_ELSE, /* an else after a true state */ - IS_TRUE_ELSE, /* an else after only false states */ - IS_FALSE_TRAILER, /* #elifs after a true are false */ - IS_COUNT -} Ifstate; - -static char const * const ifstate_name[] = { - "OUTSIDE", "FALSE_PREFIX", "TRUE_PREFIX", - "PASS_MIDDLE", "FALSE_MIDDLE", "TRUE_MIDDLE", - "PASS_ELSE", "FALSE_ELSE", "TRUE_ELSE", - "FALSE_TRAILER" -}; - -/* state of comment parser */ -typedef enum { - NO_COMMENT = false, /* outside a comment */ - C_COMMENT, /* in a comment like this one */ - CXX_COMMENT, /* between // and end of line */ - STARTING_COMMENT, /* just after slash-backslash-newline */ - FINISHING_COMMENT /* star-backslash-newline in a C comment */ -} Comment_state; - -static char const * const comment_name[] = { - "NO", "C", "CXX", "STARTING", "FINISHING" -}; - -/* state of preprocessor line parser */ -typedef enum { - LS_START, /* only space and comments on this line */ - LS_HASH, /* only space, comments, and a hash */ - LS_DIRTY /* this line can't be a preprocessor line */ -} Line_state; - -static char const * const linestate_name[] = { - "START", "HASH", "DIRTY" -}; - -/* - * Minimum translation limits from ISO/IEC 9899:1999 5.2.4.1 - */ -#define MAXDEPTH 64 /* maximum #if nesting */ -#define MAXLINE 4096 /* maximum length of line */ -#define MAXSYMS 4096 /* maximum number of symbols */ - -/* - * Sometimes when editing a keyword the replacement text is longer, so - * we leave some space at the end of the tline buffer to accommodate this. - */ -#define EDITSLOP 10 - -/* - * Globals. - */ - -static bool complement; /* -c: do the complement */ -static bool debugging; /* -d: debugging reports */ -static bool iocccok; /* -e: fewer IOCCC errors */ -static bool killconsts; /* -k: eval constant #ifs */ -static bool lnblank; /* -l: blank deleted lines */ -static bool symlist; /* -s: output symbol list */ -static bool text; /* -t: this is a text file */ - -static const char *symname[MAXSYMS]; /* symbol name */ -static const char *value[MAXSYMS]; /* -Dsym=value */ -static bool ignore[MAXSYMS]; /* -iDsym or -iUsym */ -static int nsyms; /* number of symbols */ - -static FILE *input; /* input file pointer */ -static FILE *output; /* output file pointer */ -static const char *filename; /* input file name */ -static char *ofilename; /* output file name */ -static char tmpname[MAXPATHLEN]; /* used when overwriting */ -static int linenum; /* current line number */ -static int overwriting; /* output overwrites input */ - -static char tline[MAXLINE+EDITSLOP];/* input buffer plus space */ -static char *keyword; /* used for editing #elif's */ - -static Comment_state incomment; /* comment parser state */ -static Line_state linestate; /* #if line parser state */ -static Ifstate ifstate[MAXDEPTH]; /* #if processor state */ -static bool ignoring[MAXDEPTH]; /* ignore comments state */ -static int stifline[MAXDEPTH]; /* start of current #if */ -static int depth; /* current #if nesting */ -static bool keepthis; /* don't delete constant #if */ - -static int exitstat; /* program exit status */ - -static void addsym(bool, bool, char *); -static void debug(const char *, ...) __printflike(1, 2); -__dead static void done(void); -__dead static void error(const char *); -static int findsym(const char *); -static void flushline(bool); -static Linetype get_line(void); -static Linetype ifeval(const char **); -static void ignoreoff(void); -static void ignoreon(void); -static void keywordedit(const char *); -static void nest(void); -__dead static void process(void); -static const char *skipcomment(const char *); -static const char *skipsym(const char *); -static void state(Ifstate); -static int strlcmp(const char *, const char *, size_t); -__dead static void usage(void); - -#define endsym(c) (!isalpha((unsigned char)c) && !isdigit((unsigned char)c) && c != '_') - -/* - * The main program. - */ -int -main(int argc, char *argv[]) -{ - int opt; - struct stat isb, osb; - - while ((opt = getopt(argc, argv, "i:D:U:I:o:cdeklst")) != -1) - switch (opt) { - case 'i': /* treat stuff controlled by these symbols as text */ - /* - * For strict backwards-compatibility the U or D - * should be immediately after the -i but it doesn't - * matter much if we relax that requirement. - */ - opt = *optarg++; - if (opt == 'D') - addsym(true, true, optarg); - else if (opt == 'U') - addsym(true, false, optarg); - else - usage(); - break; - case 'D': /* define a symbol */ - addsym(false, true, optarg); - break; - case 'U': /* undef a symbol */ - addsym(false, false, optarg); - break; - case 'I': - /* no-op for compatibility with cpp */ - break; - case 'c': /* treat -D as -U and vice versa */ - complement = true; - break; - case 'd': - debugging = true; - break; - case 'e': /* fewer errors from dodgy lines */ - iocccok = true; - break; - case 'k': /* process constant #ifs */ - killconsts = true; - break; - case 'l': /* blank deleted lines instead of omitting them */ - lnblank = true; - break; - case 'o': /* output to a file */ - ofilename = optarg; - break; - case 's': /* only output list of symbols that control #ifs */ - symlist = true; - break; - case 't': /* don't parse C comments */ - text = true; - break; - default: - usage(); - } - argc -= optind; - argv += optind; - if (nsyms == 0 && !symlist) { - warnx("must -D or -U at least one symbol"); - usage(); - } - if (argc > 1) { - errx(2, "can only do one file"); - } else if (argc == 1 && strcmp(*argv, "-") != 0) { - filename = *argv; - input = fopen(filename, "r"); - if (input == NULL) - err(2, "can't open %s", filename); - } else { - filename = "[stdin]"; - input = stdin; - } - if (ofilename == NULL) { - output = stdout; - } else { - if (stat(ofilename, &osb) == 0) { - if (fstat(fileno(input), &isb) != 0) - err(2, "can't fstat %s", filename); - - overwriting = (osb.st_dev == isb.st_dev && - osb.st_ino == isb.st_ino); - } - if (overwriting) { - int ofd; - - snprintf(tmpname, sizeof(tmpname), "%s/unifdef.XXXXXX", - dirname(ofilename)); - if ((ofd = mkstemp(tmpname)) != -1) - output = fdopen(ofd, "w+"); - if (output == NULL) - err(2, "can't create temporary file"); - fchmod(ofd, isb.st_mode & ACCESSPERMS); - } else { - output = fopen(ofilename, "w"); - if (output == NULL) - err(2, "can't open %s", ofilename); - } - } - process(); - abort(); /* bug */ -} - -static void -usage(void) -{ - fprintf(stderr, "usage: unifdef [-cdeklst] [-o output]" - " [-Dsym[=val]] [-Usym] [-iDsym[=val]] [-iUsym] ... [file]\n"); - exit(2); -} - -/* - * A state transition function alters the global #if processing state - * in a particular way. The table below is indexed by the current - * processing state and the type of the current line. - * - * Nesting is handled by keeping a stack of states; some transition - * functions increase or decrease the depth. They also maintain the - * ignore state on a stack. In some complicated cases they have to - * alter the preprocessor directive, as follows. - * - * When we have processed a group that starts off with a known-false - * #if/#elif sequence (which has therefore been deleted) followed by a - * #elif that we don't understand and therefore must keep, we edit the - * latter into a #if to keep the nesting correct. - * - * When we find a true #elif in a group, the following block will - * always be kept and the rest of the sequence after the next #elif or - * #else will be discarded. We edit the #elif into a #else and the - * following directive to #endif since this has the desired behaviour. - * - * "Dodgy" directives are split across multiple lines, the most common - * example being a multi-line comment hanging off the right of the - * directive. We can handle them correctly only if there is no change - * from printing to dropping (or vice versa) caused by that directive. - * If the directive is the first of a group we have a choice between - * failing with an error, or passing it through unchanged instead of - * evaluating it. The latter is not the default to avoid questions from - * users about unifdef unexpectedly leaving behind preprocessor directives. - */ -typedef void state_fn(void); - -/* report an error */ -__dead static void Eelif (void) { error("Inappropriate #elif"); } -__dead static void Eelse (void) { error("Inappropriate #else"); } -__dead static void Eendif(void) { error("Inappropriate #endif"); } -__dead static void Eeof (void) { error("Premature EOF"); } -__dead static void Eioccc(void) { error("Obfuscated preprocessor control line"); } -/* plain line handling */ -static void print (void) { flushline(true); } -static void drop (void) { flushline(false); } -/* output lacks group's start line */ -static void Strue (void) { drop(); ignoreoff(); state(IS_TRUE_PREFIX); } -static void Sfalse(void) { drop(); ignoreoff(); state(IS_FALSE_PREFIX); } -static void Selse (void) { drop(); state(IS_TRUE_ELSE); } -/* print/pass this block */ -static void Pelif (void) { print(); ignoreoff(); state(IS_PASS_MIDDLE); } -static void Pelse (void) { print(); state(IS_PASS_ELSE); } -static void Pendif(void) { print(); --depth; } -/* discard this block */ -static void Dfalse(void) { drop(); ignoreoff(); state(IS_FALSE_TRAILER); } -static void Delif (void) { drop(); ignoreoff(); state(IS_FALSE_MIDDLE); } -static void Delse (void) { drop(); state(IS_FALSE_ELSE); } -static void Dendif(void) { drop(); --depth; } -/* first line of group */ -static void Fdrop (void) { nest(); Dfalse(); } -static void Fpass (void) { nest(); Pelif(); } -static void Ftrue (void) { nest(); Strue(); } -static void Ffalse(void) { nest(); Sfalse(); } -/* variable pedantry for obfuscated lines */ -static void Oiffy (void) { if (iocccok) Fpass(); else Eioccc(); ignoreon(); } -static void Oif (void) { if (iocccok) Fpass(); else Eioccc(); } -static void Oelif (void) { if (iocccok) Pelif(); else Eioccc(); } -/* ignore comments in this block */ -static void Idrop (void) { Fdrop(); ignoreon(); } -static void Itrue (void) { Ftrue(); ignoreon(); } -static void Ifalse(void) { Ffalse(); ignoreon(); } -/* edit this line */ -static void Mpass (void) { strncpy(keyword, "if ", 4); Pelif(); } -static void Mtrue (void) { keywordedit("else\n"); state(IS_TRUE_MIDDLE); } -static void Melif (void) { keywordedit("endif\n"); state(IS_FALSE_TRAILER); } -static void Melse (void) { keywordedit("endif\n"); state(IS_FALSE_ELSE); } - -static state_fn * const trans_table[IS_COUNT][LT_COUNT] = { -/* IS_OUTSIDE */ -{ Itrue, Ifalse,Fpass, Ftrue, Ffalse,Eelif, Eelif, Eelif, Eelse, Eendif, - Oiffy, Oiffy, Fpass, Oif, Oif, Eelif, Eelif, Eelif, Eelse, Eendif, - print, done }, -/* IS_FALSE_PREFIX */ -{ Idrop, Idrop, Fdrop, Fdrop, Fdrop, Mpass, Strue, Sfalse,Selse, Dendif, - Idrop, Idrop, Fdrop, Fdrop, Fdrop, Mpass, Eioccc,Eioccc,Eioccc,Eioccc, - drop, Eeof }, -/* IS_TRUE_PREFIX */ -{ Itrue, Ifalse,Fpass, Ftrue, Ffalse,Dfalse,Dfalse,Dfalse,Delse, Dendif, - Oiffy, Oiffy, Fpass, Oif, Oif, Eioccc,Eioccc,Eioccc,Eioccc,Eioccc, - print, Eeof }, -/* IS_PASS_MIDDLE */ -{ Itrue, Ifalse,Fpass, Ftrue, Ffalse,Pelif, Mtrue, Delif, Pelse, Pendif, - Oiffy, Oiffy, Fpass, Oif, Oif, Pelif, Oelif, Oelif, Pelse, Pendif, - print, Eeof }, -/* IS_FALSE_MIDDLE */ -{ Idrop, Idrop, Fdrop, Fdrop, Fdrop, Pelif, Mtrue, Delif, Pelse, Pendif, - Idrop, Idrop, Fdrop, Fdrop, Fdrop, Eioccc,Eioccc,Eioccc,Eioccc,Eioccc, - drop, Eeof }, -/* IS_TRUE_MIDDLE */ -{ Itrue, Ifalse,Fpass, Ftrue, Ffalse,Melif, Melif, Melif, Melse, Pendif, - Oiffy, Oiffy, Fpass, Oif, Oif, Eioccc,Eioccc,Eioccc,Eioccc,Pendif, - print, Eeof }, -/* IS_PASS_ELSE */ -{ Itrue, Ifalse,Fpass, Ftrue, Ffalse,Eelif, Eelif, Eelif, Eelse, Pendif, - Oiffy, Oiffy, Fpass, Oif, Oif, Eelif, Eelif, Eelif, Eelse, Pendif, - print, Eeof }, -/* IS_FALSE_ELSE */ -{ Idrop, Idrop, Fdrop, Fdrop, Fdrop, Eelif, Eelif, Eelif, Eelse, Dendif, - Idrop, Idrop, Fdrop, Fdrop, Fdrop, Eelif, Eelif, Eelif, Eelse, Eioccc, - drop, Eeof }, -/* IS_TRUE_ELSE */ -{ Itrue, Ifalse,Fpass, Ftrue, Ffalse,Eelif, Eelif, Eelif, Eelse, Dendif, - Oiffy, Oiffy, Fpass, Oif, Oif, Eelif, Eelif, Eelif, Eelse, Eioccc, - print, Eeof }, -/* IS_FALSE_TRAILER */ -{ Idrop, Idrop, Fdrop, Fdrop, Fdrop, Dfalse,Dfalse,Dfalse,Delse, Dendif, - Idrop, Idrop, Fdrop, Fdrop, Fdrop, Dfalse,Dfalse,Dfalse,Delse, Eioccc, - drop, Eeof } -/*TRUEI FALSEI IF TRUE FALSE ELIF ELTRUE ELFALSE ELSE ENDIF - TRUEI FALSEI IF TRUE FALSE ELIF ELTRUE ELFALSE ELSE ENDIF (DODGY) - PLAIN EOF */ -}; - -/* - * State machine utility functions - */ -static void -done(void) -{ - if (incomment) - error("EOF in comment"); - if (fclose(output)) { - if (overwriting) { - unlink(tmpname); - errx(2, "%s unchanged", ofilename); - } - } - if (overwriting && rename(tmpname, ofilename)) { - unlink(tmpname); - errx(2, "%s unchanged", ofilename); - } - exit(exitstat); -} -static void -ignoreoff(void) -{ - ignoring[depth] = ignoring[depth-1]; -} -static void -ignoreon(void) -{ - ignoring[depth] = true; -} -static void -keywordedit(const char *replacement) -{ - strlcpy(keyword, replacement, tline + sizeof(tline) - keyword); - print(); -} -static void -nest(void) -{ - depth += 1; - if (depth >= MAXDEPTH) - error("Too many levels of nesting"); - stifline[depth] = linenum; -} -static void -state(Ifstate is) -{ - ifstate[depth] = is; -} - -/* - * Write a line to the output or not, according to command line options. - */ -static void -flushline(bool keep) -{ - if (symlist) - return; - if (keep ^ complement) - fputs(tline, output); - else { - if (lnblank) - putc('\n', output); - exitstat = 1; - } -} - -/* - * The driver for the state machine. - */ -static void -process(void) -{ - Linetype lineval; - - for (;;) { - linenum++; - lineval = get_line(); - trans_table[ifstate[depth]][lineval](); - debug("process %s -> %s depth %d", - linetype_name[lineval], - ifstate_name[ifstate[depth]], depth); - } -} - -/* - * Parse a line and determine its type. We keep the preprocessor line - * parser state between calls in the global variable linestate, with - * help from skipcomment(). - */ -static Linetype -get_line(void) -{ - const char *cp; - int cursym; - int kwlen; - Linetype retval; - Comment_state wascomment; - - if (fgets(tline, MAXLINE, input) == NULL) - return (LT_EOF); - retval = LT_PLAIN; - wascomment = incomment; - cp = skipcomment(tline); - if (linestate == LS_START) { - if (*cp == '#') { - linestate = LS_HASH; - cp = skipcomment(cp + 1); - } else if (*cp != '\0') - linestate = LS_DIRTY; - } - if (!incomment && linestate == LS_HASH) { - keyword = tline + (cp - tline); - cp = skipsym(cp); - kwlen = cp - keyword; - /* no way can we deal with a continuation inside a keyword */ - if (strncmp(cp, "\\\n", 2) == 0) - Eioccc(); - if (strlcmp("ifdef", keyword, kwlen) == 0 || - strlcmp("ifndef", keyword, kwlen) == 0) { - cp = skipcomment(cp); - if ((cursym = findsym(cp)) < 0) - retval = LT_IF; - else { - retval = (keyword[2] == 'n') - ? LT_FALSE : LT_TRUE; - if (value[cursym] == NULL) - retval = (retval == LT_TRUE) - ? LT_FALSE : LT_TRUE; - if (ignore[cursym]) - retval = (retval == LT_TRUE) - ? LT_TRUEI : LT_FALSEI; - } - cp = skipsym(cp); - } else if (strlcmp("if", keyword, kwlen) == 0) - retval = ifeval(&cp); - else if (strlcmp("elif", keyword, kwlen) == 0) - retval = ifeval(&cp) - LT_IF + LT_ELIF; - else if (strlcmp("else", keyword, kwlen) == 0) - retval = LT_ELSE; - else if (strlcmp("endif", keyword, kwlen) == 0) - retval = LT_ENDIF; - else { - linestate = LS_DIRTY; - retval = LT_PLAIN; - } - cp = skipcomment(cp); - if (*cp != '\0') { - linestate = LS_DIRTY; - if (retval == LT_TRUE || retval == LT_FALSE || - retval == LT_TRUEI || retval == LT_FALSEI) - retval = LT_IF; - if (retval == LT_ELTRUE || retval == LT_ELFALSE) - retval = LT_ELIF; - } - if (retval != LT_PLAIN && (wascomment || incomment)) { - retval += LT_DODGY; - if (incomment) - linestate = LS_DIRTY; - } - } - if (linestate == LS_DIRTY) { - while (*cp != '\0') - cp = skipcomment(cp + 1); - } - debug("parser %s comment %s line", - comment_name[incomment], linestate_name[linestate]); - return (retval); -} - -/* - * These are the binary operators that are supported by the expression - * evaluator. Note that if support for division is added then we also - * need short-circuiting booleans because of divide-by-zero. - */ -static int op_lt(int a, int b) { return (a < b); } -static int op_gt(int a, int b) { return (a > b); } -static int op_le(int a, int b) { return (a <= b); } -static int op_ge(int a, int b) { return (a >= b); } -static int op_eq(int a, int b) { return (a == b); } -static int op_ne(int a, int b) { return (a != b); } -static int op_or(int a, int b) { return (a || b); } -static int op_and(int a, int b) { return (a && b); } - -/* - * An evaluation function takes three arguments, as follows: (1) a pointer to - * an element of the precedence table which lists the operators at the current - * level of precedence; (2) a pointer to an integer which will receive the - * value of the expression; and (3) a pointer to a char* that points to the - * expression to be evaluated and that is updated to the end of the expression - * when evaluation is complete. The function returns LT_FALSE if the value of - * the expression is zero, LT_TRUE if it is non-zero, or LT_IF if the - * expression could not be evaluated. - */ -struct ops; - -typedef Linetype eval_fn(const struct ops *, int *, const char **); - -static eval_fn eval_table, eval_unary; - -/* - * The precedence table. Expressions involving binary operators are evaluated - * in a table-driven way by eval_table. When it evaluates a subexpression it - * calls the inner function with its first argument pointing to the next - * element of the table. Innermost expressions have special non-table-driven - * handling. - */ -static const struct ops { - eval_fn *inner; - struct op { - const char *str; - int (*fn)(int, int); - } op[5]; -} eval_ops[] = { - { eval_table, { { "||", op_or } } }, - { eval_table, { { "&&", op_and } } }, - { eval_table, { { "==", op_eq }, - { "!=", op_ne } } }, - { eval_unary, { { "<=", op_le }, - { ">=", op_ge }, - { "<", op_lt }, - { ">", op_gt } } } -}; - -/* - * Function for evaluating the innermost parts of expressions, - * viz. !expr (expr) defined(symbol) symbol number - * We reset the keepthis flag when we find a non-constant subexpression. - */ -static Linetype -eval_unary(const struct ops *ops, int *valp, const char **cpp) -{ - const char *cp; - char *ep; - int sym; - - cp = skipcomment(*cpp); - if (*cp == '!') { - debug("eval%td !", ops - eval_ops); - cp++; - if (eval_unary(ops, valp, &cp) == LT_IF) - return (LT_IF); - *valp = !*valp; - } else if (*cp == '(') { - cp++; - debug("eval%td (", ops - eval_ops); - if (eval_table(eval_ops, valp, &cp) == LT_IF) - return (LT_IF); - cp = skipcomment(cp); - if (*cp++ != ')') - return (LT_IF); - } else if (isdigit((unsigned char)*cp)) { - debug("eval%td number", ops - eval_ops); - *valp = strtol(cp, &ep, 0); - cp = skipsym(cp); - } else if (strncmp(cp, "defined", 7) == 0 && endsym(cp[7])) { - cp = skipcomment(cp+7); - debug("eval%td defined", ops - eval_ops); - if (*cp++ != '(') - return (LT_IF); - cp = skipcomment(cp); - sym = findsym(cp); - if (sym < 0 || symlist) - return (LT_IF); - *valp = (value[sym] != NULL); - cp = skipsym(cp); - cp = skipcomment(cp); - if (*cp++ != ')') - return (LT_IF); - keepthis = false; - } else if (!endsym(*cp)) { - debug("eval%td symbol", ops - eval_ops); - sym = findsym(cp); - if (sym < 0 || symlist) - return (LT_IF); - if (value[sym] == NULL) - *valp = 0; - else { - *valp = strtol(value[sym], &ep, 0); - if (*ep != '\0' || ep == value[sym]) - return (LT_IF); - } - cp = skipsym(cp); - keepthis = false; - } else { - debug("eval%td bad expr", ops - eval_ops); - return (LT_IF); - } - - *cpp = cp; - debug("eval%td = %d", ops - eval_ops, *valp); - return (*valp ? LT_TRUE : LT_FALSE); -} - -/* - * Table-driven evaluation of binary operators. - */ -static Linetype -eval_table(const struct ops *ops, int *valp, const char **cpp) -{ - const struct op *op; - const char *cp; - int val; - - debug("eval%td", ops - eval_ops); - cp = *cpp; - if (ops->inner(ops+1, valp, &cp) == LT_IF) - return (LT_IF); - for (;;) { - cp = skipcomment(cp); - for (op = ops->op; op->str != NULL; op++) - if (strncmp(cp, op->str, strlen(op->str)) == 0) - break; - if (op->str == NULL) - break; - cp += strlen(op->str); - debug("eval%td %s", ops - eval_ops, op->str); - if (ops->inner(ops+1, &val, &cp) == LT_IF) - return (LT_IF); - *valp = op->fn(*valp, val); - } - - *cpp = cp; - debug("eval%td = %d", ops - eval_ops, *valp); - return (*valp ? LT_TRUE : LT_FALSE); -} - -/* - * Evaluate the expression on a #if or #elif line. If we can work out - * the result we return LT_TRUE or LT_FALSE accordingly, otherwise we - * return just a generic LT_IF. - */ -static Linetype -ifeval(const char **cpp) -{ - int ret; - int val; - - debug("eval %s", *cpp); - keepthis = killconsts ? false : true; - ret = eval_table(eval_ops, &val, cpp); - debug("eval = %d", val); - return (keepthis ? LT_IF : ret); -} - -/* - * Skip over comments and stop at the next character position that is - * not whitespace. Between calls we keep the comment state in the - * global variable incomment, and we also adjust the global variable - * linestate when we see a newline. - * XXX: doesn't cope with the buffer splitting inside a state transition. - */ -static const char * -skipcomment(const char *cp) -{ - if (text || ignoring[depth]) { - for (; isspace((unsigned char)*cp); cp++) - if (*cp == '\n') - linestate = LS_START; - return (cp); - } - while (*cp != '\0') - /* don't reset to LS_START after a line continuation */ - if (strncmp(cp, "\\\n", 2) == 0) - cp += 2; - else switch (incomment) { - case NO_COMMENT: - if (strncmp(cp, "/\\\n", 3) == 0) { - incomment = STARTING_COMMENT; - cp += 3; - } else if (strncmp(cp, "/*", 2) == 0) { - incomment = C_COMMENT; - cp += 2; - } else if (strncmp(cp, "//", 2) == 0) { - incomment = CXX_COMMENT; - cp += 2; - } else if (strncmp(cp, "\n", 1) == 0) { - linestate = LS_START; - cp += 1; - } else if (strchr(" \t", *cp) != NULL) { - cp += 1; - } else - return (cp); - continue; - case CXX_COMMENT: - if (strncmp(cp, "\n", 1) == 0) { - incomment = NO_COMMENT; - linestate = LS_START; - } - cp += 1; - continue; - case C_COMMENT: - if (strncmp(cp, "*\\\n", 3) == 0) { - incomment = FINISHING_COMMENT; - cp += 3; - } else if (strncmp(cp, "*/", 2) == 0) { - incomment = NO_COMMENT; - cp += 2; - } else - cp += 1; - continue; - case STARTING_COMMENT: - if (*cp == '*') { - incomment = C_COMMENT; - cp += 1; - } else if (*cp == '/') { - incomment = CXX_COMMENT; - cp += 1; - } else { - incomment = NO_COMMENT; - linestate = LS_DIRTY; - } - continue; - case FINISHING_COMMENT: - if (*cp == '/') { - incomment = NO_COMMENT; - cp += 1; - } else - incomment = C_COMMENT; - continue; - default: - abort(); /* bug */ - } - return (cp); -} - -/* - * Skip over an identifier. - */ -static const char * -skipsym(const char *cp) -{ - while (!endsym(*cp)) - ++cp; - return (cp); -} - -/* - * Look for the symbol in the symbol table. If it is found, we return - * the symbol table index, else we return -1. - */ -static int -findsym(const char *str) -{ - const char *cp; - int symind; - - cp = skipsym(str); - if (cp == str) - return (-1); - if (symlist) - printf("%.*s\n", (int)(cp-str), str); - for (symind = 0; symind < nsyms; ++symind) { - if (strlcmp(symname[symind], str, cp-str) == 0) { - debug("findsym %s %s", symname[symind], - value[symind] ? value[symind] : ""); - return (symind); - } - } - return (-1); -} - -/* - * Add a symbol to the symbol table. - */ -static void -addsym(bool ignorethis, bool definethis, char *sym) -{ - int symind; - char *val; - - symind = findsym(sym); - if (symind < 0) { - if (nsyms >= MAXSYMS) - errx(2, "too many symbols"); - symind = nsyms++; - } - symname[symind] = sym; - ignore[symind] = ignorethis; - val = sym + (skipsym(sym) - sym); - if (definethis) { - if (*val == '=') { - value[symind] = val+1; - *val = '\0'; - } else if (*val == '\0') - value[symind] = ""; - else - usage(); - } else { - if (*val != '\0') - usage(); - value[symind] = NULL; - } -} - -/* - * Compare s with n characters of t. - * The same as strncmp() except that it checks that s[n] == '\0'. - */ -static int -strlcmp(const char *s, const char *t, size_t n) -{ - while (n-- && *t != '\0') - if (*s != *t) - return ((unsigned char)*s - (unsigned char)*t); - else - ++s, ++t; - return ((unsigned char)*s); -} - -/* - * Diagnostics. - */ -static void -debug(const char *msg, ...) -{ - va_list ap; - - if (debugging) { - va_start(ap, msg); - vwarnx(msg, ap); - va_end(ap); - } -} - -static void -error(const char *msg) -{ - if (depth == 0) - warnx("%s: %d: %s", filename, linenum, msg); - else - warnx("%s: %d: %s (#if line %d depth %d)", - filename, linenum, msg, stifline[depth], depth); - fclose(output); - if (overwriting) { - unlink(tmpname); - errx(2, "%s unchanged", ofilename); - } - errx(2, "output may be truncated"); -} diff --git a/usr.bin/unifdef/unifdefall.sh b/usr.bin/unifdef/unifdefall.sh deleted file mode 100644 index 7c1d643..0000000 --- a/usr.bin/unifdef/unifdefall.sh +++ /dev/null @@ -1,29 +0,0 @@ -#!/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 -- cgit v1.2.3-60-g2f50