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-rw-r--r--usr.bin/m4/main.c811
1 files changed, 0 insertions, 811 deletions
diff --git a/usr.bin/m4/main.c b/usr.bin/m4/main.c
deleted file mode 100644
index cba65ad..0000000
--- a/usr.bin/m4/main.c
+++ /dev/null
@@ -1,811 +0,0 @@
-/* $OpenBSD: main.c,v 1.77 2009/10/14 17:19:47 sthen Exp $ */
-/* $NetBSD: main.c,v 1.46 2016/01/23 14:24:43 christos Exp $ */
-
-/*-
- * Copyright (c) 1989, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Ozan Yigit at York University.
- *
- * 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.
- */
-
-/*
- * main.c
- * Facility: m4 macro processor
- * by: oz
- */
-#if HAVE_NBTOOL_CONFIG_H
-#include "nbtool_config.h"
-#endif
-#include <sys/cdefs.h>
-__RCSID("$NetBSD: main.c,v 1.46 2016/01/23 14:24:43 christos Exp $");
-#include <assert.h>
-#include <signal.h>
-#include <getopt.h>
-#include <err.h>
-#include <errno.h>
-#include <unistd.h>
-#include <stdio.h>
-#include <ctype.h>
-#include <string.h>
-#include <stddef.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <ohash.h>
-#include "mdef.h"
-#include "stdd.h"
-#include "extern.h"
-#include "pathnames.h"
-
-ndptr hashtab[HASHSIZE]; /* hash table for macros etc. */
-stae *mstack; /* stack of m4 machine */
-char *sstack; /* shadow stack, for string space extension */
-static size_t STACKMAX; /* current maximum size of stack */
-int sp; /* current m4 stack pointer */
-int fp; /* m4 call frame pointer */
-struct input_file infile[MAXINP];/* input file stack (0=stdin) */
-FILE **outfile; /* diversion array(0=bitbucket)*/
-int maxout;
-FILE *active; /* active output file pointer */
-int ilevel = 0; /* input file stack pointer */
-int oindex = 0; /* diversion index.. */
-const char *null = ""; /* as it says.. just a null.. */
-char **m4wraps = NULL; /* m4wraps array. */
-int maxwraps = 0; /* size of m4wraps array */
-int wrapindex = 0; /* current offset in m4wraps */
-char lquote[MAXCCHARS+1] = {LQUOTE}; /* left quote character (`) */
-char rquote[MAXCCHARS+1] = {RQUOTE}; /* right quote character (') */
-char scommt[MAXCCHARS+1] = {SCOMMT}; /* start character for comment */
-char ecommt[MAXCCHARS+1] = {ECOMMT}; /* end character for comment */
-int synch_lines = 0; /* line synchronisation for C preprocessor */
-int prefix_builtins = 0; /* -P option to prefix builtin keywords */
-int fatal_warnings = 0; /* -E option to exit on warnings */
-int quiet = 0; /* -Q option to silence warnings */
-int nesting_limit = -1; /* -L for nesting limit */
-const char *freeze = NULL; /* -F to freeze state */
-const char *reload = NULL; /* -R to reload state */
-#ifndef REAL_FREEZE
-FILE *freezef = NULL;
-int thawing = 0;
-#endif
-
-struct keyblk {
- const char *knam; /* keyword name */
- int ktyp; /* keyword type */
-};
-
-struct keyblk keywrds[] = { /* m4 keywords to be installed */
- { "include", INCLTYPE },
- { "sinclude", SINCTYPE },
- { "define", DEFITYPE },
- { "defn", DEFNTYPE },
- { "divert", DIVRTYPE | NOARGS },
- { "expr", EXPRTYPE },
- { "eval", EXPRTYPE },
- { "substr", SUBSTYPE },
- { "ifelse", IFELTYPE },
- { "ifdef", IFDFTYPE },
- { "len", LENGTYPE },
- { "incr", INCRTYPE },
- { "decr", DECRTYPE },
- { "dnl", DNLNTYPE | NOARGS },
- { "changequote", CHNQTYPE | NOARGS },
- { "changecom", CHNCTYPE | NOARGS },
- { "index", INDXTYPE },
-#ifdef EXTENDED
- { "paste", PASTTYPE },
- { "spaste", SPASTYPE },
- /* Newer extensions, needed to handle gnu-m4 scripts */
- { "indir", INDIRTYPE},
- { "builtin", BUILTINTYPE},
- { "patsubst", PATSTYPE},
- { "regexp", REGEXPTYPE},
- { "esyscmd", ESYSCMDTYPE},
- { "__file__", FILENAMETYPE | NOARGS},
- { "__line__", LINETYPE | NOARGS},
-#endif
- { "popdef", POPDTYPE },
- { "pushdef", PUSDTYPE },
- { "dumpdef", DUMPTYPE | NOARGS },
- { "shift", SHIFTYPE | NOARGS },
- { "translit", TRNLTYPE },
- { "undefine", UNDFTYPE },
- { "undivert", UNDVTYPE | NOARGS },
- { "divnum", DIVNTYPE | NOARGS },
- { "maketemp", MKTMTYPE },
- { "errprint", ERRPTYPE | NOARGS },
- { "m4wrap", M4WRTYPE | NOARGS },
- { "m4exit", EXITTYPE | NOARGS },
- { "syscmd", SYSCTYPE },
- { "sysval", SYSVTYPE | NOARGS },
- { "traceon", TRACEONTYPE | NOARGS },
- { "traceoff", TRACEOFFTYPE | NOARGS },
-
-#if defined(unix) || defined(__unix__)
- { "unix", SELFTYPE | NOARGS },
-#else
-#ifdef vms
- { "vms", SELFTYPE | NOARGS },
-#endif
-#endif
-};
-
-#define MAXKEYS (sizeof(keywrds)/sizeof(struct keyblk))
-
-#define MAXRECORD 50
-static struct position {
- char *name;
- unsigned long line;
-} quotes[MAXRECORD], paren[MAXRECORD];
-
-static void record(struct position *, int);
-static void dump_stack(struct position *, int);
-
-static void macro(void);
-static void initkwds(void);
-static ndptr inspect(int, char *);
-static int do_look_ahead(int, const char *);
-static void reallyoutputstr(const char *);
-static void reallyputchar(int);
-
-static void enlarge_stack(void);
-static void help(void);
-
-static void
-usage(FILE *f)
-{
- fprintf(f, "Usage: %s [-EGgiPQsv] [-Dname[=value]] [-d flags] "
- "[-I dirname] [-o filename] [-L limit]\n"
- "\t[-t macro] [-Uname] [file ...]\n", getprogname());
-}
-
-__dead static void
-onintr(int signo)
-{
- char intrmessage[] = "m4: interrupted.\n";
- write(STDERR_FILENO, intrmessage, sizeof(intrmessage)-1);
- _exit(1);
-}
-
-#define OPT_HELP 1
-
-struct option longopts[] = {
- { "debug", optional_argument, 0, 'd' },
- { "define", required_argument, 0, 'D' },
- { "error-output", required_argument, 0, 'e' },
- { "fatal-warnings", no_argument, 0, 'E' },
- { "freeze-state", required_argument, 0, 'F' },
- { "gnu", no_argument, 0, 'g' },
- { "help", no_argument, 0, OPT_HELP },
- { "include", required_argument, 0, 'I' },
- { "interactive", no_argument, 0, 'i' },
- { "nesting-limit", required_argument, 0, 'L' },
- { "prefix-builtins", no_argument, 0, 'P' },
- { "quiet", no_argument, 0, 'Q' },
- { "reload-state", required_argument, 0, 'R' },
- { "silent", no_argument, 0, 'Q' },
- { "synclines", no_argument, 0, 's' },
- { "trace", required_argument, 0, 't' },
- { "traditional", no_argument, 0, 'G' },
- { "undefine", required_argument, 0, 'U' },
- { "version", no_argument, 0, 'v' },
-#ifdef notyet
- { "arglength", required_argument, 0, 'l' },
- { "debugfile", optional_argument, 0, OPT_DEBUGFILE },
- { "hashsize", required_argument, 0, 'H' },
- { "warn-macro-sequence",optional_argument, 0, OPT_WARN_SEQUENCE },
-#endif
- { 0, 0, 0, 0 },
-};
-
-int
-main(int argc, char *argv[])
-{
- int c;
- int n;
- char *p;
-
- setprogname(argv[0]);
-
- if (signal(SIGINT, SIG_IGN) != SIG_IGN)
- signal(SIGINT, onintr);
-
- init_macros();
- initspaces();
- STACKMAX = INITSTACKMAX;
-
- mstack = (stae *)xalloc(sizeof(stae) * STACKMAX, NULL);
- sstack = (char *)xalloc(STACKMAX, NULL);
-
- maxout = 0;
- outfile = NULL;
- resizedivs(MAXOUT);
-
- while ((c = getopt_long(argc, argv, "D:d:e:EF:GgI:iL:o:PR:Qst:U:v",
- longopts, NULL)) != -1)
- switch(c) {
- case 'D': /* define something..*/
- for (p = optarg; *p; p++)
- if (*p == '=')
- break;
- if (*p)
- *p++ = EOS;
- dodefine(optarg, p);
- break;
- case 'd':
- set_trace_flags(optarg);
- break;
- case 'E':
- fatal_warnings++;
- break;
- case 'e':
- if (freopen(optarg, "w+", stderr) == NULL)
- err(EXIT_FAILURE, "Can't redirect errors to `%s'",
- optarg);
- break;
- case 'F':
- freeze = optarg;
-#ifndef REAL_FREEZE
- if ((freezef = fopen(freeze, "w")) == NULL)
- err(EXIT_FAILURE, "Can't open `%s'", freeze);
-#endif
- break;
- case 'I':
- addtoincludepath(optarg);
- break;
- case 'i':
- setvbuf(stdout, NULL, _IONBF, 0);
- signal(SIGINT, SIG_IGN);
- break;
- case 'G':
- mimic_gnu = 0;
- break;
- case 'g':
- mimic_gnu = 1;
- break;
- case 'L':
- nesting_limit = atoi(optarg);
- break;
- case 'o':
- trace_file(optarg);
- break;
- case 'P':
- prefix_builtins = 1;
- break;
- case 'Q':
- quiet++;
- break;
- case 'R':
- reload = optarg;
- break;
- case 's':
- synch_lines = 1;
- break;
- case 't':
- mark_traced(optarg, 1);
- break;
- case 'U': /* undefine... */
- macro_popdef(optarg);
- break;
- case 'v':
- fprintf(stderr, "%s version %d\n", getprogname(),
- VERSION);
- return EXIT_SUCCESS;
- case OPT_HELP:
- help();
- return EXIT_SUCCESS;
- case '?':
- default:
- usage(stderr);
- return EXIT_FAILURE;
- }
-
-#ifdef REDIRECT
- /*
- * This is meant only for debugging; it makes all output
- * go to a known file, even if the command line options
- * send it elsewhere. It should not be turned of in production code.
- */
- if (freopen("/tmp/m4", "w+", stderr) == NULL)
- err(EXIT_FAILURE, "Can't redirect errors to `%s'",
- "/tmp/m4");
-#endif
- argc -= optind;
- argv += optind;
-
-
- initkwds();
- if (mimic_gnu)
- setup_builtin("format", FORMATTYPE);
-
- active = stdout; /* default active output */
- bbase[0] = bufbase;
-
- if (reload) {
-#ifdef REAL_FREEZE
- thaw_state(reload);
-#else
- if (fopen_trypath(infile, reload) == NULL)
- err(1, "Can't open `%s'", reload);
- sp = -1;
- fp = 0;
- thawing = 1;
- macro();
- thawing = 0;
- release_input(infile);
-#endif
- }
-
- if (!argc) {
- sp = -1; /* stack pointer initialized */
- fp = 0; /* frame pointer initialized */
- set_input(infile+0, stdin, "stdin");
- /* default input (naturally) */
- macro();
- } else
- for (; argc--; ++argv) {
- p = *argv;
- if (p[0] == '-' && p[1] == EOS)
- set_input(infile, stdin, "stdin");
- else if (fopen_trypath(infile, p) == NULL)
- err(1, "%s", p);
- sp = -1;
- fp = 0;
- macro();
- release_input(infile);
- }
-
- if (wrapindex) {
- int i;
-
- ilevel = 0; /* in case m4wrap includes.. */
- bufbase = bp = buf; /* use the entire buffer */
- if (mimic_gnu) {
- while (wrapindex != 0) {
- for (i = 0; i < wrapindex; i++)
- pbstr(m4wraps[i]);
- wrapindex =0;
- macro();
- }
- } else {
- for (i = 0; i < wrapindex; i++) {
- pbstr(m4wraps[i]);
- macro();
- }
- }
- }
-
- if (active != stdout)
- active = stdout; /* reset output just in case */
- for (n = 1; n < maxout; n++) /* default wrap-up: undivert */
- if (outfile[n] != NULL)
- getdiv(n);
- /* remove bitbucket if used */
- if (outfile[0] != NULL) {
- (void) fclose(outfile[0]);
- }
-
-#ifdef REAL_FREEZE
- if (freeze)
- freeze_state(freeze);
-#else
- if (freezef)
- fclose(freezef);
-#endif
-
- return 0;
-}
-
-/*
- * Look ahead for `token'.
- * (on input `t == token[0]')
- * Used for comment and quoting delimiters.
- * Returns 1 if `token' present; copied to output.
- * 0 if `token' not found; all characters pushed back
- */
-static int
-do_look_ahead(int t, const char *token)
-{
- int i;
-
- assert((unsigned char)t == (unsigned char)token[0]);
-
- for (i = 1; *++token; i++) {
- t = gpbc();
- if (t == EOF || (unsigned char)t != (unsigned char)*token) {
- pushback(t);
- while (--i)
- pushback(*--token);
- return 0;
- }
- }
- return 1;
-}
-
-#define LOOK_AHEAD(t, token) (t != EOF && \
- (unsigned char)(t)==(unsigned char)(token)[0] && \
- do_look_ahead(t,token))
-
-/*
- * macro - the work horse..
- */
-static void
-macro(void)
-{
- char token[MAXTOK+1];
- int t, l;
- ndptr p;
- int nlpar;
-
- cycle {
- t = gpbc();
-
- if (LOOK_AHEAD(t,lquote)) { /* strip quotes */
- nlpar = 0;
- record(quotes, nlpar++);
- /*
- * Opening quote: scan forward until matching
- * closing quote has been found.
- */
- do {
-
- l = gpbc();
- if (LOOK_AHEAD(l,rquote)) {
- if (--nlpar > 0)
- outputstr(rquote);
- } else if (LOOK_AHEAD(l,lquote)) {
- record(quotes, nlpar++);
- outputstr(lquote);
- } else if (l == EOF) {
- if (!quiet) {
- if (nlpar == 1)
- warnx("unclosed quote:");
- else
- warnx(
- "%d unclosed quotes:",
- nlpar);
- dump_stack(quotes, nlpar);
- }
- exit(EXIT_FAILURE);
- } else {
- if (nlpar > 0) {
- if (sp < 0)
- reallyputchar(l);
- else
- CHRSAVE(l);
- }
- }
- }
- while (nlpar != 0);
- } else if (sp < 0 && LOOK_AHEAD(t, scommt)) {
- reallyoutputstr(scommt);
-
- for(;;) {
- t = gpbc();
- if (LOOK_AHEAD(t, ecommt)) {
- reallyoutputstr(ecommt);
- break;
- }
- if (t == EOF)
- break;
- reallyputchar(t);
- }
- } else if (t == '_' || isalpha(t)) {
- p = inspect(t, token);
- if (p != NULL)
- pushback(l = gpbc());
- if (p == NULL || (l != LPAREN &&
- (macro_getdef(p)->type & NEEDARGS) != 0))
- outputstr(token);
- else {
- /*
- * real thing.. First build a call frame:
- */
- pushf(fp); /* previous call frm */
- pushf(macro_getdef(p)->type); /* type of the call */
- pushf(is_traced(p));
- pushf(0); /* parenthesis level */
- fp = sp; /* new frame pointer */
- /*
- * now push the string arguments:
- */
- pushs1(macro_getdef(p)->defn); /* defn string */
- pushs1((char *)macro_name(p)); /* macro name */
- pushs(ep); /* start next..*/
-
- if (l != LPAREN && PARLEV == 0) {
- /* no bracks */
- chrsave(EOS);
-
- if ((size_t)sp == STACKMAX)
- errx(1, "internal stack overflow");
- eval((const char **) mstack+fp+1, 2,
- CALTYP, TRACESTATUS);
-
- ep = PREVEP; /* flush strspace */
- sp = PREVSP; /* previous sp.. */
- fp = PREVFP; /* rewind stack...*/
- }
- }
- } else if (t == EOF) {
- if (sp > -1 && ilevel <= 0) {
- if (!quiet) {
- warnx("unexpected end of input, "
- "unclosed parenthesis:");
- dump_stack(paren, PARLEV);
- }
- exit(EXIT_FAILURE);
- }
- if (ilevel <= 0)
- break; /* all done thanks.. */
- release_input(infile+ilevel--);
- emit_synchline();
- bufbase = bbase[ilevel];
- continue;
- } else if (sp < 0) { /* not in a macro at all */
- reallyputchar(t); /* output directly.. */
- }
-
- else switch(t) {
-
- case LPAREN:
- if (PARLEV > 0)
- chrsave(t);
- while (isspace(l = gpbc())) /* skip blank, tab, nl.. */
- if (PARLEV > 0)
- chrsave(l);
- pushback(l);
- record(paren, PARLEV++);
- break;
-
- case RPAREN:
- if (--PARLEV > 0)
- chrsave(t);
- else { /* end of argument list */
- chrsave(EOS);
-
- if ((size_t)sp == STACKMAX)
- errx(1, "internal stack overflow");
-
- eval((const char **) mstack+fp+1, sp-fp,
- CALTYP, TRACESTATUS);
-
- ep = PREVEP; /* flush strspace */
- sp = PREVSP; /* previous sp.. */
- fp = PREVFP; /* rewind stack...*/
- }
- break;
-
- case COMMA:
- if (PARLEV == 1) {
- chrsave(EOS); /* new argument */
- while (isspace(l = gpbc()))
- ;
- pushback(l);
- pushs(ep);
- } else
- chrsave(t);
- break;
-
- default:
- if (LOOK_AHEAD(t, scommt)) {
- char *q;
- for (q = scommt; *q; q++)
- chrsave(*q);
- for(;;) {
- t = gpbc();
- if (LOOK_AHEAD(t, ecommt)) {
- for (q = ecommt; *q; q++)
- chrsave(*q);
- break;
- }
- if (t == EOF)
- break;
- CHRSAVE(t);
- }
- } else
- CHRSAVE(t); /* stack the char */
- break;
- }
- }
-}
-
-/*
- * output string directly, without pushing it for reparses.
- */
-void
-outputstr(const char *s)
-{
- if (sp < 0)
- reallyoutputstr(s);
- else
- while (*s)
- CHRSAVE(*s++);
-}
-
-void
-reallyoutputstr(const char *s)
-{
- if (synch_lines) {
- while (*s) {
- fputc(*s, active);
- if (*s++ == '\n') {
- infile[ilevel].synch_lineno++;
- if (infile[ilevel].synch_lineno !=
- infile[ilevel].lineno)
- do_emit_synchline();
- }
- }
- } else
- fputs(s, active);
-}
-
-void
-reallyputchar(int c)
-{
- putc(c, active);
- if (synch_lines && c == '\n') {
- infile[ilevel].synch_lineno++;
- if (infile[ilevel].synch_lineno != infile[ilevel].lineno)
- do_emit_synchline();
- }
-}
-
-/*
- * build an input token..
- * consider only those starting with _ or A-Za-z.
- */
-static ndptr
-inspect(int c, char *tp)
-{
- char *name = tp;
- char *etp = tp+MAXTOK;
- ndptr p;
-
- *tp++ = c;
-
- while ((isalnum(c = gpbc()) || c == '_') && tp < etp)
- *tp++ = c;
- if (c != EOF)
- PUSHBACK(c);
- *tp = EOS;
- /* token is too long, it won't match anything, but it can still
- * be output. */
- if (tp == ep) {
- outputstr(name);
- while (isalnum(c = gpbc()) || c == '_') {
- if (sp < 0)
- reallyputchar(c);
- else
- CHRSAVE(c);
- }
- *name = EOS;
- return NULL;
- }
-
- p = ohash_find(&macros, ohash_qlookupi(&macros, name, (void *)&tp));
- if (p == NULL)
- return NULL;
- if (macro_getdef(p) == NULL)
- return NULL;
- return p;
-}
-
-/*
- * initkwds - initialise m4 keywords as fast as possible.
- * This very similar to install, but without certain overheads,
- * such as calling lookup. Malloc is not used for storing the
- * keyword strings, since we simply use the static pointers
- * within keywrds block.
- */
-static void
-initkwds(void)
-{
- unsigned int type;
- size_t i;
-
- for (i = 0; i < MAXKEYS; i++) {
- type = keywrds[i].ktyp;
- if ((keywrds[i].ktyp & NOARGS) == 0)
- type |= NEEDARGS;
- setup_builtin(keywrds[i].knam, type);
- }
-}
-
-static void
-record(struct position *t, int lev)
-{
- if (lev < MAXRECORD) {
- t[lev].name = CURRENT_NAME;
- t[lev].line = CURRENT_LINE;
- }
-}
-
-static void
-dump_stack(struct position *t, int lev)
-{
- int i;
-
- for (i = 0; i < lev; i++) {
- if (i == MAXRECORD) {
- fprintf(stderr, " ...\n");
- break;
- }
- fprintf(stderr, " %s at line %lu\n",
- t[i].name, t[i].line);
- }
-}
-
-
-static void
-enlarge_stack(void)
-{
- STACKMAX += STACKMAX/2;
- mstack = xrealloc(mstack, sizeof(stae) * STACKMAX,
- "Evaluation stack overflow (%lu)",
- (unsigned long)STACKMAX);
- sstack = xrealloc(sstack, STACKMAX,
- "Evaluation stack overflow (%lu)",
- (unsigned long)STACKMAX);
-}
-
-static const struct {
- const char *n;
- const char *d;
-} nd [] = {
-{ "-d, --debug[=flags]", "set debug flags" },
-{ "-D, --define=name[=value]", "define macro" },
-{ "-e, --error-output=file", "send error output to file" },
-{ "-E, --fatal-warnings", "exit on warnings" },
-{ "-F, --freeze-state=file", "save state to file" },
-{ "-g, --gnu", "enable gnu extensions" },
-{ " --help", "print this message and exit" },
-{ "-I, --include=file", "include file" },
-{ "-i, --interactive", "unbuffer output, ignore tty signals" },
-{ "-L, --nesting-limit=num", "macro expansion nesting limit (unimpl)" },
-{ "-P, --prefix-builtins", "prefix builtins with m4_" },
-{ "-Q, --quiet", "don't print warnings" },
-{ "-R, --reload-state=file", "restore state from file" },
-{ "-Q, --silent", "don't print warnings" },
-{ "-s, --synclines", "output line directives for cpp(1)" },
-{ "-t, --trace=macro", "trace the named macro" },
-{ "-G, --traditional", "disable gnu extensions" },
-{ "-U, --undefine=name", "undefine the named macro" },
-{ "-v, --version", "print the version number and exit" },
-};
-
-static void
-help(void)
-{
- size_t i;
- fprintf(stdout, "%s version %d\n\n", getprogname(), VERSION);
- usage(stdout);
-
- fprintf(stdout, "\nThe long options are:\n");
- for (i = 0; i < __arraycount(nd); i++)
- fprintf(stdout, "\t%-25.25s\t%s\n", nd[i].n, nd[i].d);
-}