+++ /dev/null
-.\" Copyright (c) 1985, 1991 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. 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 6.5 (Berkeley) 4/23/91
-.\"
-.Dd April 23, 1991
-.Dt UNIFDEF 1
-.Os BSD 4.3
-.Sh NAME
-.Nm unifdef
-.Nd remove ifdef'ed lines
-.Sh SYNOPSIS
-.Nm unifdef
-.Oo
-.Fl t l c
-.Fl D Ns Ar sym
-.Fl U Ns Ar sym
-.Fl iD Ns Ar sym
-.Fl iD Ns Ar sym
-.Oc
-.Ar ...
-.Op Ar file
-.Sh DESCRIPTION
-.Nm Unifdef
-is useful for removing ifdef'ed lines
-from a file while otherwise leaving the file alone.
-.Nm Unifdef
-acts on
-#ifdef, #ifndef, #else, and #endif lines,
-and it knows only enough about C
-to know when one of these is inactive
-because it is inside
-a comment,
-or a single or double quote.
-Parsing for quotes is very simplistic:
-when it finds an open quote,
-it ignores everything (except escaped quotes)
-until it finds a close quote, and
-it will not complain if it gets
-to the end of a line and finds no backslash for continuation.
-.Pp
-Available options:
-.Bl -tag -width Ds -compact
-.It Fl D Ns Ar sym
-.It Fl U Ns Ar sym
-Specify which symbols to define or undefine.
-and the lines inside those ifdefs will be copied to the output or removed as
-appropriate.
-The ifdef, ifndef, else, and endif lines associated with
-.Ar sym
-will also be removed.
-Ifdefs involving symbols you don't specify
-and ``#if'' control lines
-are untouched and copied out
-along with their associated
-ifdef, else, and endif lines.
-If an ifdef X occurs nested inside another ifdef X, then the
-inside ifdef is treated as if it were an unrecognized symbol.
-If the same symbol appears in more than one argument,
-the last occurrence dominates.
-.Pp
-.It Fl c
-If the
-.Fl c
-flag is specified,
-then the operation of
-.Nm unifdef
-is complemented,
-i.e. the lines that would have been removed or blanked
-are retained and vice versa.
-.Pp
-.It Fl l
-Replace removed lines with blank lines
-instead of deleting them.
-.It Fl t
-Disables parsing for
-C comments and quotes useful for plain text
-(not C code).
-.Pp
-.It Fl iD Ns Ar sym
-.It Fl iU Ns Ar sym
-Ignore ifdefs.
-If your C code uses ifdefs to delimit non-C lines,
-such as comments
-or code which is under construction,
-then you must tell
-.Nm unifdef
-which symbols are used for that purpose so that it won't try to parse
-for quotes and comments
-inside those ifdefs.
-One specifies ignored ifdefs with
-.Fl iD Ns Ar sym
-and
-.Fl iU Ns Ar sym
-similar to
-.Fl D Ns Ar sym
-and
-.Fl U Ns Ar sym
-above.
-.El
-.Pp
-.Nm Unifdef
-copies its output to
-.Em stdout
-and will take its input from
-.Em stdin
-if no
-.Ar file
-argument is given.
-.Pp
-.Nm Unifdef
-works nicely with the
-.Fl D Ns Ar sym
-option added to
-.Xr diff 1
-as of the 4.1 Berkeley Software Distribution.
-.Sh SEE ALSO
-.Xr diff 1
-.Sh DIAGNOSTICS
-Inappropriate else or endif.
-.br
-Premature
-.Tn EOF
-with line numbers of the unterminated #ifdefs.
-.Pp
-Exit status is 0 if output is exact copy of input, 1 if not, 2 if trouble.
-.Sh BUGS
-Should try to deal with ``#if'' lines.
-.Pp
-Doesn't work correctly if input contains null characters.
-.Sh HISTORY
-The
-.Nm
-command appeared in
-.Bx 4.3 .
+++ /dev/null
-/*
- * Copyright (c) 1985 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. 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.
- */
-
-#ifndef lint
-char copyright[] =
-"@(#) Copyright (c) 1985 The Regents of the University of California.\n\
- All rights reserved.\n";
-#endif /* not lint */
-
-/* based on @(#)unifdef.c 4.7 (Berkeley) 6/1/90 */
-
-/*
- * unifdef - remove ifdef'ed lines
- *
- * Warning: will not work correctly if input contains null characters.
- *
- * 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
- */
-
-#include <stdio.h>
-#include <ctype.h>
-
-#define BSS
-FILE *input;
-#ifndef YES
-#define YES 1
-#define NO 0
-#endif/*YES */
-typedef int Bool;
-
-char *progname BSS;
-char *filename BSS;
-char text BSS; /* -t option in effect: this is a text file */
-char lnblank BSS; /* -l option in effect: blank deleted lines */
-char complement BSS; /* -c option in effect: complement the operation */
-
-#define MAXSYMS 100
-char *symname[MAXSYMS] BSS; /* symbol name */
-char true[MAXSYMS] BSS; /* -Dsym */
-char ignore[MAXSYMS] BSS; /* -iDsym or -iUsym */
-char insym[MAXSYMS] BSS; /* state: false, inactive, true */
-#define SYM_INACTIVE 0 /* symbol is currently inactive */
-#define SYM_FALSE 1 /* symbol is currently false */
-#define SYM_TRUE 2 /* symbol is currently true */
-
-char nsyms BSS;
-char incomment BSS; /* inside C comment */
-
-#define QUOTE_NONE 0
-#define QUOTE_SINGLE 1
-#define QUOTE_DOUBLE 2
-char inquote BSS; /* inside single or double quotes */
-
-int exitstat BSS;
-char *skipcomment ();
-char *skipquote ();
-
-main (argc, argv)
-int argc;
-char **argv;
-{
- char **curarg;
- register char *cp;
- register char *cp1;
- char ignorethis;
-
- progname = argv[0][0] ? argv[0] : "unifdef";
-
- for (curarg = &argv[1]; --argc > 0; curarg++) {
- if (*(cp1 = cp = *curarg) != '-')
- break;
- if (*++cp1 == 'i') {
- ignorethis = YES;
- cp1++;
- } else
- ignorethis = NO;
- if ( ( *cp1 == 'D'
- || *cp1 == 'U'
- )
- && cp1[1] != '\0'
- ) {
- register int symind;
-
- if ((symind = findsym (&cp1[1])) < 0) {
- if (nsyms >= MAXSYMS) {
- prname ();
- fprintf (stderr, "too many symbols.\n");
- exit (2);
- }
- symind = nsyms++;
- symname[symind] = &cp1[1];
- insym[symind] = SYM_INACTIVE;
- }
- ignore[symind] = ignorethis;
- true[symind] = *cp1 == 'D' ? YES : NO;
- } else if (ignorethis)
- goto unrec;
- else if (strcmp (&cp[1], "t") == 0)
- text = YES;
- else if (strcmp (&cp[1], "l") == 0)
- lnblank = YES;
- else if (strcmp (&cp[1], "c") == 0)
- complement = YES;
- else {
- unrec:
- prname ();
- fprintf (stderr, "unrecognized option: %s\n", cp);
- goto usage;
- }
- }
- if (nsyms == 0) {
- usage:
- fprintf (stderr, "\
-Usage: %s [-l] [-t] [-c] [[-Dsym] [-Usym] [-iDsym] [-iUsym]]... [file]\n\
- At least one arg from [-D -U -iD -iU] is required\n", progname);
- exit (2);
- }
-
- if (argc > 1) {
- prname ();
- fprintf (stderr, "can only do one file.\n");
- } else if (argc == 1) {
- filename = *curarg;
- if ((input = fopen (filename, "r")) != NULL) {
- pfile();
- (void) fclose (input);
- } else {
- prname ();
- fprintf (stderr, "can't open ");
- perror(*curarg);
- }
- } else {
- filename = "[stdin]";
- input = stdin;
- pfile();
- }
-
- (void) fflush (stdout);
- exit (exitstat);
-}
-
-/* types of input lines: */
-typedef int Linetype;
-#define LT_PLAIN 0 /* ordinary line */
-#define LT_TRUE 1 /* a true #ifdef of a symbol known to us */
-#define LT_FALSE 2 /* a false #ifdef of a symbol known to us */
-#define LT_OTHER 3 /* an #ifdef of a symbol not known to us */
-#define LT_IF 4 /* an #ifdef of a symbol not known to us */
-#define LT_ELSE 5 /* #else */
-#define LT_ENDIF 6 /* #endif */
-#define LT_LEOF 7 /* end of file */
-extern Linetype checkline ();
-
-typedef int Reject_level;
-Reject_level reject BSS; /* 0 or 1: pass thru; 1 or 2: ignore comments */
-#define REJ_NO 0
-#define REJ_IGNORE 1
-#define REJ_YES 2
-
-int linenum BSS; /* current line number */
-int stqcline BSS; /* start of current coment or quote */
-char *errs[] = {
-#define NO_ERR 0
- "",
-#define END_ERR 1
- "",
-#define ELSE_ERR 2
- "Inappropriate else",
-#define ENDIF_ERR 3
- "Inappropriate endif",
-#define IEOF_ERR 4
- "Premature EOF in ifdef",
-#define CEOF_ERR 5
- "Premature EOF in comment",
-#define Q1EOF_ERR 6
- "Premature EOF in quoted character",
-#define Q2EOF_ERR 7
- "Premature EOF in quoted string"
-};
-
-/* States for inif arg to doif */
-#define IN_NONE 0
-#define IN_IF 1
-#define IN_ELSE 2
-
-pfile ()
-{
- reject = REJ_NO;
- (void) doif (-1, IN_NONE, reject, 0);
- return;
-}
-
-int
-doif (thissym, inif, prevreject, depth)
-register int thissym; /* index of the symbol who was last ifdef'ed */
-int inif; /* YES or NO we are inside an ifdef */
-Reject_level prevreject;/* previous value of reject */
-int depth; /* depth of ifdef's */
-{
- register Linetype lineval;
- register Reject_level thisreject;
- int doret; /* tmp return value of doif */
- int cursym; /* index of the symbol returned by checkline */
- int stline; /* line number when called this time */
-
- stline = linenum;
- for (;;) {
- switch (lineval = checkline (&cursym)) {
- case LT_PLAIN:
- flushline (YES);
- break;
-
- case LT_TRUE:
- case LT_FALSE:
- thisreject = reject;
- if (lineval == LT_TRUE)
- insym[cursym] = SYM_TRUE;
- else {
- if (reject != REJ_YES)
- reject = ignore[cursym] ? REJ_IGNORE : REJ_YES;
- insym[cursym] = SYM_FALSE;
- }
- if (ignore[cursym])
- flushline (YES);
- else {
- exitstat = 1;
- flushline (NO);
- }
- if ((doret = doif (cursym, IN_IF, thisreject, depth + 1)) != NO_ERR)
- return error (doret, stline, depth);
- break;
-
- case LT_IF:
- case LT_OTHER:
- flushline (YES);
- if ((doret = doif (-1, IN_IF, reject, depth + 1)) != NO_ERR)
- return error (doret, stline, depth);
- break;
-
- case LT_ELSE:
- if (inif != IN_IF)
- return error (ELSE_ERR, linenum, depth);
- inif = IN_ELSE;
- if (thissym >= 0) {
- if (insym[thissym] == SYM_TRUE) {
- reject = ignore[thissym] ? REJ_IGNORE : REJ_YES;
- insym[thissym] = SYM_FALSE;
- } else { /* (insym[thissym] == SYM_FALSE) */
- reject = prevreject;
- insym[thissym] = SYM_TRUE;
- }
- if (!ignore[thissym]) {
- flushline (NO);
- break;
- }
- }
- flushline (YES);
- break;
-
- case LT_ENDIF:
- if (inif == IN_NONE)
- return error (ENDIF_ERR, linenum, depth);
- if (thissym >= 0) {
- insym[thissym] = SYM_INACTIVE;
- reject = prevreject;
- if (!ignore[thissym]) {
- flushline (NO);
- return NO_ERR;
- }
- }
- flushline (YES);
- return NO_ERR;
-
- case LT_LEOF: {
- int err;
- err = incomment
- ? CEOF_ERR
- : inquote == QUOTE_SINGLE
- ? Q1EOF_ERR
- : inquote == QUOTE_DOUBLE
- ? Q2EOF_ERR
- : NO_ERR;
- if (inif != IN_NONE) {
- if (err != NO_ERR)
- (void) error (err, stqcline, depth);
- return error (IEOF_ERR, stline, depth);
- } else if (err != NO_ERR)
- return error (err, stqcline, depth);
- else
- return NO_ERR;
- }
- }
- }
-}
-
-#define endsym(c) (!isalpha (c) && !isdigit (c) && c != '_')
-
-#define MAXLINE 256
-char tline[MAXLINE] BSS;
-
-Linetype
-checkline (cursym)
-int *cursym; /* if LT_TRUE or LT_FALSE returned, set this to sym index */
-{
- register char *cp;
- register char *symp;
- char *scp;
- Linetype retval;
-# define KWSIZE 8
- char keyword[KWSIZE];
-
- linenum++;
- if (getlin (tline, sizeof tline, input, NO) == EOF)
- return LT_LEOF;
-
- retval = LT_PLAIN;
- if ( *(cp = tline) != '#'
- || incomment
- || inquote == QUOTE_SINGLE
- || inquote == QUOTE_DOUBLE
- )
- goto eol;
-
- cp = skipcomment (++cp);
- symp = keyword;
- while (!endsym (*cp)) {
- *symp = *cp++;
- if (++symp >= &keyword[KWSIZE])
- goto eol;
- }
- *symp = '\0';
-
- if (strcmp (keyword, "ifdef") == 0) {
- retval = YES;
- goto ifdef;
- } else if (strcmp (keyword, "ifndef") == 0) {
- retval = NO;
- ifdef:
- scp = cp = skipcomment (++cp);
- if (incomment) {
- retval = LT_PLAIN;
- goto eol;
- }
- {
- int symind;
-
- if ((symind = findsym (scp)) >= 0)
- retval = (retval ^ true[*cursym = symind])
- ? LT_FALSE : LT_TRUE;
- else
- retval = LT_OTHER;
- }
- } else if (strcmp (keyword, "if") == 0)
- retval = LT_IF;
- else if (strcmp (keyword, "else") == 0)
- retval = LT_ELSE;
- else if (strcmp (keyword, "endif") == 0)
- retval = LT_ENDIF;
-
- eol:
- if (!text && reject != REJ_IGNORE)
- for (; *cp; ) {
- if (incomment)
- cp = skipcomment (cp);
- else if (inquote == QUOTE_SINGLE)
- cp = skipquote (cp, QUOTE_SINGLE);
- else if (inquote == QUOTE_DOUBLE)
- cp = skipquote (cp, QUOTE_DOUBLE);
- else if (*cp == '/' && cp[1] == '*')
- cp = skipcomment (cp);
- else if (*cp == '\'')
- cp = skipquote (cp, QUOTE_SINGLE);
- else if (*cp == '"')
- cp = skipquote (cp, QUOTE_DOUBLE);
- else
- cp++;
- }
- return retval;
-}
-
-/*
- * Skip over comments and stop at the next charaacter
- * position that is not whitespace.
- */
-char *
-skipcomment (cp)
-register char *cp;
-{
- if (incomment)
- goto inside;
- for (;; cp++) {
- while (*cp == ' ' || *cp == '\t')
- cp++;
- if (text)
- return cp;
- if ( cp[0] != '/'
- || cp[1] != '*'
- )
- return cp;
- cp += 2;
- if (!incomment) {
- incomment = YES;
- stqcline = linenum;
- }
- inside:
- for (;;) {
- for (; *cp != '*'; cp++)
- if (*cp == '\0')
- return cp;
- if (*++cp == '/') {
- incomment = NO;
- break;
- }
- }
- }
-}
-
-/*
- * Skip over a quoted string or character and stop at the next charaacter
- * position that is not whitespace.
- */
-char *
-skipquote (cp, type)
-register char *cp;
-register int type;
-{
- register char qchar;
-
- qchar = type == QUOTE_SINGLE ? '\'' : '"';
-
- if (inquote == type)
- goto inside;
- for (;; cp++) {
- if (*cp != qchar)
- return cp;
- cp++;
- inquote = type;
- stqcline = linenum;
- inside:
- for (; ; cp++) {
- if (*cp == qchar)
- break;
- if ( *cp == '\0'
- || *cp == '\\' && *++cp == '\0'
- )
- return cp;
- }
- inquote = QUOTE_NONE;
- }
-}
-
-/*
- * findsym - look for the symbol in the symbol table.
- * if found, return symbol table index,
- * else return -1.
- */
-int
-findsym (str)
-char *str;
-{
- register char *cp;
- register char *symp;
- register int symind;
- register char chr;
-
- for (symind = 0; symind < nsyms; ++symind) {
- if (insym[symind] == SYM_INACTIVE) {
- for ( symp = symname[symind], cp = str
- ; *symp && *cp == *symp
- ; cp++, symp++
- )
- continue;
- chr = *cp;
- if (*symp == '\0' && endsym (chr))
- return symind;
- }
- }
- return -1;
-}
-
-/*
- * getlin - expands tabs if asked for
- * and (if compiled in) treats form-feed as an end-of-line
- */
-int
-getlin (line, maxline, inp, expandtabs)
-register char *line;
-int maxline;
-FILE *inp;
-int expandtabs;
-{
- int tmp;
- register int num;
- register int chr;
-#ifdef FFSPECIAL
- static char havechar = NO; /* have leftover char from last time */
- static char svchar BSS;
-#endif/*FFSPECIAL */
-
- num = 0;
-#ifdef FFSPECIAL
- if (havechar) {
- havechar = NO;
- chr = svchar;
- goto ent;
- }
-#endif/*FFSPECIAL */
- while (num + 8 < maxline) { /* leave room for tab */
- chr = getc (inp);
- if (isprint (chr)) {
-#ifdef FFSPECIAL
- ent:
-#endif/*FFSPECIAL */
- *line++ = chr;
- num++;
- } else
- switch (chr) {
- case EOF:
- return EOF;
-
- case '\t':
- if (expandtabs) {
- num += tmp = 8 - (num & 7);
- do
- *line++ = ' ';
- while (--tmp);
- break;
- }
- default:
- *line++ = chr;
- num++;
- break;
-
- case '\n':
- *line = '\n';
- num++;
- goto end;
-
-#ifdef FFSPECIAL
- case '\f':
- if (++num == 1)
- *line = '\f';
- else {
- *line = '\n';
- havechar = YES;
- svchar = chr;
- }
- goto end;
-#endif/*FFSPECIAL */
- }
- }
- end:
- *++line = '\0';
- return num;
-}
-
-flushline (keep)
-Bool keep;
-{
- if ((keep && reject != REJ_YES) ^ complement) {
- register char *line = tline;
- register FILE *out = stdout;
- register char chr;
-
- while (chr = *line++)
- putc (chr, out);
- } else if (lnblank)
- putc ('\n', stdout);
- return;
-}
-
-prname ()
-{
- fprintf (stderr, "%s: ", progname);
- return;
-}
-
-int
-error (err, line, depth)
-int err; /* type of error & index into error string array */
-int line; /* line number */
-int depth; /* how many ifdefs we are inside */
-{
- if (err == END_ERR)
- return err;
-
- prname ();
-
-#ifndef TESTING
- fprintf (stderr, "Error in %s line %d: %s.\n", filename, line, errs[err]);
-#else/* TESTING */
- fprintf (stderr, "Error in %s line %d: %s. ", filename, line, errs[err]);
- fprintf (stderr, "ifdef depth: %d\n", depth);
-#endif/*TESTING */
-
- exitstat = 2;
- return depth > 1 ? IEOF_ERR : END_ERR;
-}
projects / krb5.git / commitdiff