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This is the stock 2.3 file (+ FreeBSD id). Since someone majorly SPAMMED

Browse Source 
the repository by NOT vendor importing the virgin 2.0 sources, CVS had no
idea what to do here.
This commit is contained in:
obrien 1999-11-20 23:41:24 +00:00
parent fa89658480
commit 6cd485fb34
3 changed files with 503 additions and 229 deletions
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617
gnu/usr.bin/grep/getopt.c
View File

@ -3,52 +3,45 @@
"Keep this file name-space clean" means, talk to roland@gnu.ai.mit.edu
before changing it!
Copyright (C) 1987, 88, 89, 90, 91, 92, 1993
Copyright (C) 1987, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97
Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.
This file is part of the GNU C Library. Its master source is NOT part of
the C library, however. The master source lives in /gd/gnu/lib.
This program is distributed in the hope that it will be useful,
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/* $FreeBSD$ */
/* NOTE!!! AIX requires this to be the first thing in the file.
Do not put ANYTHING before it! */
#if !defined (__GNUC__) && defined (_AIX)
#pragma alloca
/* This tells Alpha OSF/1 not to define a getopt prototype in <stdio.h>.
Ditto for AIX 3.2 and <stdlib.h>. */
#ifndef _NO_PROTO
#define _NO_PROTO
#endif
#ifdef HAVE_CONFIG_H
#include "config.h"
#include <config.h>
#endif
#ifdef __GNUC__
#define alloca __builtin_alloca
#else /* not __GNUC__ */
#if defined (HAVE_ALLOCA_H) || (defined(sparc) && (defined(sun) || (!defined(USG) && !defined(SVR4) && !defined(__svr4__))))
#include <alloca.h>
#else
#ifndef _AIX
char *alloca ();
#endif
#endif /* alloca.h */
#endif /* not __GNUC__ */
#if !__STDC__ && !defined(const) && IN_GCC
#if !defined (__STDC__) || !__STDC__
/* This is a separate conditional since some stdc systems
reject `defined (const)'. */
#ifndef const
#define const
#endif
/* This tells Alpha OSF/1 not to define a getopt prototype in <stdio.h>. */
#ifndef _NO_PROTO
#define _NO_PROTO
#endif
#include <stdio.h>
@ -61,24 +54,49 @@ char *alloca ();
program understand `configure --with-gnu-libc' and omit the object files,
it is simpler to just do this in the source for each such file. */
#if defined (_LIBC) || !defined (__GNU_LIBRARY__)
#define GETOPT_INTERFACE_VERSION 2
#if !defined (_LIBC) && defined (__GLIBC__) && __GLIBC__ >= 2
#include <gnu-versions.h>
#if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
#define ELIDE_CODE
#endif
#endif
#ifndef ELIDE_CODE
/* This needs to come after some library #include
to get __GNU_LIBRARY__ defined. */
#ifdef __GNU_LIBRARY__
#undef alloca
/* Don't include stdlib.h for non-GNU C libraries because some of them
contain conflicting prototypes for getopt. */
#include <stdlib.h>
#else /* Not GNU C library. */
#define __alloca alloca
#include <unistd.h>
#endif /* GNU C library. */
/* If GETOPT_COMPAT is defined, `+' as well as `--' can introduce a
long-named option. Because this is not POSIX.2 compliant, it is
being phased out. */
/* #define GETOPT_COMPAT */
#ifdef VMS
#include <unixlib.h>
#if HAVE_STRING_H - 0
#include <string.h>
#endif
#endif
#if defined (WIN32) && !defined (__CYGWIN32__)
/* It's not Unix, really. See? Capital letters. */
#include <windows.h>
#define getpid() GetCurrentProcessId()
#endif
#ifndef _
/* This is for other GNU distributions with internationalized messages.
When compiling libc, the _ macro is predefined. */
#ifdef HAVE_LIBINTL_H
# include <libintl.h>
# define _(msgid) gettext (msgid)
#else
# define _(msgid) (msgid)
#endif
#endif
/* This version of `getopt' appears to the caller like standard Unix `getopt'
but it behaves differently for the user, since it allows the user
@ -102,7 +120,7 @@ char *alloca ();
Also, when `ordering' is RETURN_IN_ORDER,
each non-option ARGV-element is returned here. */
char *optarg = 0;
char *optarg = NULL;
/* Index in ARGV of the next element to be scanned.
This is used for communication to and from the caller
@ -110,14 +128,20 @@ char *optarg = 0;
On entry to `getopt', zero means this is the first call; initialize.
When `getopt' returns EOF, this is the index of the first of the
When `getopt' returns -1, this is the index of the first of the
non-option elements that the caller should itself scan.
Otherwise, `optind' communicates from one call to the next
how much of ARGV has been scanned so far. */
/* XXX 1003.2 says this must be 1 before any call. */
int optind = 0;
/* 1003.2 says this must be 1 before any call. */
int optind = 1;
/* Formerly, initialization of getopt depended on optind==0, which
causes problems with re-calling getopt as programs generally don't
know that. */
int __getopt_initialized = 0;
/* The next char to be scanned in the option-element
in which the last option character we returned was found.
@ -166,12 +190,15 @@ int optopt = '?';
The special argument `--' forces an end of option-scanning regardless
of the value of `ordering'. In the case of RETURN_IN_ORDER, only
`--' can cause `getopt' to return EOF with `optind' != ARGC. */
`--' can cause `getopt' to return -1 with `optind' != ARGC. */
static enum
{
REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER
} ordering;
/* Value of POSIXLY_CORRECT environment variable. */
static char *posixly_correct;
#ifdef __GNU_LIBRARY__
/* We want to avoid inclusion of string.h with non-GNU libraries
@ -180,7 +207,6 @@ static enum
in GCC. */
#include <string.h>
#define my_index strchr
#define my_bcopy(src, dst, n) memcpy ((dst), (src), (n))
#else
/* Avoid depending on library functions or files
@ -202,17 +228,19 @@ my_index (str, chr)
return 0;
}
static void
my_bcopy (from, to, size)
const char *from;
char *to;
int size;
{
int i;
for (i = 0; i < size; i++)
to[i] = from[i];
}
#endif /* GNU C library. */
/* If using GCC, we can safely declare strlen this way.
If not using GCC, it is ok not to declare it. */
#ifdef __GNUC__
/* Note that Motorola Delta 68k R3V7 comes with GCC but not stddef.h.
That was relevant to code that was here before. */
#if !defined (__STDC__) || !__STDC__
/* gcc with -traditional declares the built-in strlen to return int,
and has done so at least since version 2.4.5. -- rms. */
extern int strlen (const char *);
#endif /* not __STDC__ */
#endif /* __GNUC__ */
#endif /* not __GNU_LIBRARY__ */
/* Handle permutation of arguments. */
@ -223,6 +251,31 @@ my_bcopy (from, to, size)
static int first_nonopt;
static int last_nonopt;
#ifdef _LIBC
/* Bash 2.0 gives us an environment variable containing flags
indicating ARGV elements that should not be considered arguments. */
static const char *nonoption_flags;
static int nonoption_flags_len;
static int original_argc;
static char *const *original_argv;
/* Make sure the environment variable bash 2.0 puts in the environment
is valid for the getopt call we must make sure that the ARGV passed
to getopt is that one passed to the process. */
static void store_args (int argc, char *const *argv) __attribute__ ((unused));
static void
store_args (int argc, char *const *argv)
{
/* XXX This is no good solution. We should rather copy the args so
that we can compare them later. But we must not use malloc(3). */
original_argc = argc;
original_argv = argv;
}
text_set_element (__libc_subinit, store_args);
#endif
/* Exchange two adjacent subsequences of ARGV.
One subsequence is elements [first_nonopt,last_nonopt)
which contains all the non-options that have been skipped so far.
@ -232,27 +285,126 @@ static int last_nonopt;
`first_nonopt' and `last_nonopt' are relocated so that they describe
the new indices of the non-options in ARGV after they are moved. */
#if defined (__STDC__) && __STDC__
static void exchange (char **);
#endif
static void
exchange (argv)
char **argv;
{
int nonopts_size = (last_nonopt - first_nonopt) * sizeof (char *);
char **temp = (char **) __alloca (nonopts_size);
int bottom = first_nonopt;
int middle = last_nonopt;
int top = optind;
char *tem;
/* Interchange the two blocks of data in ARGV. */
/* Exchange the shorter segment with the far end of the longer segment.
That puts the shorter segment into the right place.
It leaves the longer segment in the right place overall,
but it consists of two parts that need to be swapped next. */
my_bcopy ((char *) &argv[first_nonopt], (char *) temp, nonopts_size);
my_bcopy ((char *) &argv[last_nonopt], (char *) &argv[first_nonopt],
(optind - last_nonopt) * sizeof (char *));
my_bcopy ((char *) temp,
(char *) &argv[first_nonopt + optind - last_nonopt],
nonopts_size);
while (top > middle && middle > bottom)
{
if (top - middle > middle - bottom)
{
/* Bottom segment is the short one. */
int len = middle - bottom;
register int i;
/* Swap it with the top part of the top segment. */
for (i = 0; i < len; i++)
{
tem = argv[bottom + i];
argv[bottom + i] = argv[top - (middle - bottom) + i];
argv[top - (middle - bottom) + i] = tem;
}
/* Exclude the moved bottom segment from further swapping. */
top -= len;
}
else
{
/* Top segment is the short one. */
int len = top - middle;
register int i;
/* Swap it with the bottom part of the bottom segment. */
for (i = 0; i < len; i++)
{
tem = argv[bottom + i];
argv[bottom + i] = argv[middle + i];
argv[middle + i] = tem;
}
/* Exclude the moved top segment from further swapping. */
bottom += len;
}
}
/* Update records for the slots the non-options now occupy. */
first_nonopt += (optind - last_nonopt);
last_nonopt = optind;
}
/* Initialize the internal data when the first call is made. */
#if defined (__STDC__) && __STDC__
static const char *_getopt_initialize (int, char *const *, const char *);
#endif
static const char *
_getopt_initialize (argc, argv, optstring)
int argc;
char *const *argv;
const char *optstring;
{
/* Start processing options with ARGV-element 1 (since ARGV-element 0
is the program name); the sequence of previously skipped
non-option ARGV-elements is empty. */
first_nonopt = last_nonopt = optind = 1;
nextchar = NULL;
posixly_correct = getenv ("POSIXLY_CORRECT");
/* Determine how to handle the ordering of options and nonoptions. */
if (optstring[0] == '-')
{
ordering = RETURN_IN_ORDER;
++optstring;
}
else if (optstring[0] == '+')
{
ordering = REQUIRE_ORDER;
++optstring;
}
else if (posixly_correct != NULL)
ordering = REQUIRE_ORDER;
else
ordering = PERMUTE;
#ifdef _LIBC
if (posixly_correct == NULL
&& argc == original_argc && argv == original_argv)
{
/* Bash 2.0 puts a special variable in the environment for each
command it runs, specifying which ARGV elements are the results of
file name wildcard expansion and therefore should not be
considered as options. */
char var[100];
sprintf (var, "_%d_GNU_nonoption_argv_flags_", getpid ());
nonoption_flags = getenv (var);
if (nonoption_flags == NULL)
nonoption_flags_len = 0;
else
nonoption_flags_len = strlen (nonoption_flags);
}
else
nonoption_flags_len = 0;
#endif
return optstring;
}
/* Scan elements of ARGV (whose length is ARGC) for option characters
given in OPTSTRING.
@ -267,7 +419,7 @@ exchange (argv)
updating `optind' and `nextchar' so that the next call to `getopt' can
resume the scan with the following option character or ARGV-element.
If there are no more option characters, `getopt' returns `EOF'.
If there are no more option characters, `getopt' returns -1.
Then `optind' is the index in ARGV of the first ARGV-element
that is not an option. (The ARGV-elements have been permuted
so that those that are not options now come last.)
@ -319,41 +471,38 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
int *longind;
int long_only;
{
int option_index;
optarg = NULL;
optarg = 0;
/* Initialize the internal data when the first call is made.
Start processing options with ARGV-element 1 (since ARGV-element 0
is the program name); the sequence of previously skipped
non-option ARGV-elements is empty. */
if (optind == 0)
if (!__getopt_initialized || optind == 0)
{
first_nonopt = last_nonopt = optind = 1;
nextchar = NULL;
/* Determine how to handle the ordering of options and nonoptions. */
if (optstring[0] == '-')
{
ordering = RETURN_IN_ORDER;
++optstring;
}
else if (optstring[0] == '+')
{
ordering = REQUIRE_ORDER;
++optstring;
}
else if (getenv ("POSIXLY_CORRECT") != NULL)
ordering = REQUIRE_ORDER;
else
ordering = PERMUTE;
optstring = _getopt_initialize (argc, argv, optstring);
optind = 1; /* Don't scan ARGV[0], the program name. */
__getopt_initialized = 1;
}
/* Test whether ARGV[optind] points to a non-option argument.
Either it does not have option syntax, or there is an environment flag
from the shell indicating it is not an option. The later information
is only used when the used in the GNU libc. */
#ifdef _LIBC
#define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0' \
|| (optind < nonoption_flags_len \
&& nonoption_flags[optind] == '1'))
#else
#define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0')
#endif
if (nextchar == NULL || *nextchar == '\0')
{
/* Advance to the next ARGV-element. */
/* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been
moved back by the user (who may also have changed the arguments). */
if (last_nonopt > optind)
last_nonopt = optind;
if (first_nonopt > optind)
first_nonopt = optind;
if (ordering == PERMUTE)
{
/* If we have just processed some options following some non-options,
@ -364,21 +513,15 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
else if (last_nonopt != optind)
first_nonopt = optind;
/* Now skip any additional non-options
/* Skip any additional non-options
and extend the range of non-options previously skipped. */
while (optind < argc
&& (argv[optind][0] != '-' || argv[optind][1] == '\0')
#ifdef GETOPT_COMPAT
&& (longopts == NULL
|| argv[optind][0] != '+' || argv[optind][1] == '\0')
#endif /* GETOPT_COMPAT */
)
while (optind < argc && NONOPTION_P)
optind++;
last_nonopt = optind;
}
/* Special ARGV-element `--' means premature end of options.
/* The special ARGV-element `--' means premature end of options.
Skip it like a null option,
then exchange with previous non-options as if it were an option,
then skip everything else like a non-option. */
@ -405,56 +548,64 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
that we previously skipped, so the caller will digest them. */
if (first_nonopt != last_nonopt)
optind = first_nonopt;
return EOF;
return -1;
}
/* If we have come to a non-option and did not permute it,
either stop the scan or describe it to the caller and pass it by. */
if ((argv[optind][0] != '-' || argv[optind][1] == '\0')
#ifdef GETOPT_COMPAT
&& (longopts == NULL
|| argv[optind][0] != '+' || argv[optind][1] == '\0')
#endif /* GETOPT_COMPAT */
)
if (NONOPTION_P)
{
if (ordering == REQUIRE_ORDER)
return EOF;
return -1;
optarg = argv[optind++];
return 1;
}
/* We have found another option-ARGV-element.
Start decoding its characters. */
Skip the initial punctuation. */
nextchar = (argv[optind] + 1
+ (longopts != NULL && argv[optind][1] == '-'));
}
/* Decode the current option-ARGV-element. */
/* Check whether the ARGV-element is a long option.
If long_only and the ARGV-element has the form "-f", where f is
a valid short option, don't consider it an abbreviated form of
a long option that starts with f. Otherwise there would be no
way to give the -f short option.
On the other hand, if there's a long option "fubar" and
the ARGV-element is "-fu", do consider that an abbreviation of
the long option, just like "--fu", and not "-f" with arg "u".
This distinction seems to be the most useful approach. */
if (longopts != NULL
&& ((argv[optind][0] == '-'
&& (argv[optind][1] == '-' || long_only))
#ifdef GETOPT_COMPAT
|| argv[optind][0] == '+'
#endif /* GETOPT_COMPAT */
))
&& (argv[optind][1] == '-'
|| (long_only && (argv[optind][2] || !my_index (optstring, argv[optind][1])))))
{
char *nameend;
const struct option *p;
char *s = nextchar;
const struct option *pfound = NULL;
int exact = 0;
int ambig = 0;
const struct option *pfound = NULL;
int indfound;
int indfound = -1;
int option_index;
while (*s && *s != '=')
s++;
for (nameend = nextchar; *nameend && *nameend != '='; nameend++)
/* Do nothing. */ ;
/* Test all options for either exact match or abbreviated matches. */
for (p = longopts, option_index = 0; p->name;
p++, option_index++)
if (!strncmp (p->name, nextchar, s - nextchar))
/* Test all long options for either exact match
or abbreviated matches. */
for (p = longopts, option_index = 0; p->name; p++, option_index++)
if (!strncmp (p->name, nextchar, nameend - nextchar))
{
if (s - nextchar == strlen (p->name))
if ((unsigned int) (nameend - nextchar)
== (unsigned int) strlen (p->name))
{
/* Exact match found. */
pfound = p;
@ -469,17 +620,18 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
indfound = option_index;
}
else
/* Second nonexact match found. */
/* Second or later nonexact match found. */
ambig = 1;
}
if (ambig && !exact)
{
if (opterr)
fprintf (stderr, "%s: option `%s' is ambiguous\n",
fprintf (stderr, _("%s: option `%s' is ambiguous\n"),
argv[0], argv[optind]);
nextchar += strlen (nextchar);
optind++;
optopt = 0;
return '?';
}
@ -487,28 +639,29 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
{
option_index = indfound;
optind++;
if (*s)
if (*nameend)
{
/* Don't test has_arg with >, because some C compilers don't
allow it to be used on enums. */
if (pfound->has_arg)
optarg = s + 1;
optarg = nameend + 1;
else
{
if (opterr)
{
if (argv[optind - 1][1] == '-')
/* --option */
fprintf (stderr,
"%s: option `--%s' doesn't allow an argument\n",
argv[0], pfound->name);
else
/* +option or -option */
fprintf (stderr,
"%s: option `%c%s' doesn't allow an argument\n",
argv[0], argv[optind - 1][0], pfound->name);
}
if (argv[optind - 1][1] == '-')
/* --option */
fprintf (stderr,
_("%s: option `--%s' doesn't allow an argument\n"),
argv[0], pfound->name);
else
/* +option or -option */
fprintf (stderr,
_("%s: option `%c%s' doesn't allow an argument\n"),
argv[0], argv[optind - 1][0], pfound->name);
nextchar += strlen (nextchar);
optopt = pfound->val;
return '?';
}
}
@ -519,9 +672,11 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
else
{
if (opterr)
fprintf (stderr, "%s: option `%s' requires an argument\n",
argv[0], argv[optind - 1]);
fprintf (stderr,
_("%s: option `%s' requires an argument\n"),
argv[0], argv[optind - 1]);
nextchar += strlen (nextchar);
optopt = pfound->val;
return optstring[0] == ':' ? ':' : '?';
}
}
@ -535,34 +690,33 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
}
return pfound->val;
}
/* Can't find it as a long option. If this is not getopt_long_only,
or the option starts with '--' or is not a valid short
option, then it's an error.
Otherwise interpret it as a short option. */
if (!long_only || argv[optind][1] == '-'
#ifdef GETOPT_COMPAT
|| argv[optind][0] == '+'
#endif /* GETOPT_COMPAT */
|| my_index (optstring, *nextchar) == NULL)
{
if (opterr)
{
if (argv[optind][1] == '-')
/* --option */
fprintf (stderr, "%s: unrecognized option `--%s'\n",
fprintf (stderr, _("%s: unrecognized option `--%s'\n"),
argv[0], nextchar);
else
/* +option or -option */
fprintf (stderr, "%s: unrecognized option `%c%s'\n",
fprintf (stderr, _("%s: unrecognized option `%c%s'\n"),
argv[0], argv[optind][0], nextchar);
}
nextchar = (char *) "";
optind++;
optopt = 0;
return '?';
}
}
/* Look at and handle the next option-character. */
/* Look at and handle the next short option-character. */
{
char c = *nextchar++;
@ -576,20 +730,141 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
{
if (opterr)
{
#if 0
if (c < 040 || c >= 0177)
fprintf (stderr, "%s: unrecognized option, character code 0%o\n",
if (posixly_correct)
/* 1003.2 specifies the format of this message. */
fprintf (stderr, _("%s: illegal option -- %c\n"),
argv[0], c);
else
fprintf (stderr, "%s: unrecognized option `-%c'\n", argv[0], c);
#else
/* 1003.2 specifies the format of this message. */
fprintf (stderr, "%s: illegal option -- %c\n", argv[0], c);
#endif
fprintf (stderr, _("%s: invalid option -- %c\n"),
argv[0], c);
}
optopt = c;
return '?';
}
/* Convenience. Treat POSIX -W foo same as long option --foo */
if (temp[0] == 'W' && temp[1] == ';')
{
char *nameend;
const struct option *p;
const struct option *pfound = NULL;
int exact = 0;
int ambig = 0;
int indfound = 0;
int option_index;
/* This is an option that requires an argument. */
if (*nextchar != '\0')
{
optarg = nextchar;
/* If we end this ARGV-element by taking the rest as an arg,
we must advance to the next element now. */
optind++;
}
else if (optind == argc)
{
if (opterr)
{
/* 1003.2 specifies the format of this message. */
fprintf (stderr, _("%s: option requires an argument -- %c\n"),
argv[0], c);
}
optopt = c;
if (optstring[0] == ':')
c = ':';
else
c = '?';
return c;
}
else
/* We already incremented `optind' once;
increment it again when taking next ARGV-elt as argument. */
optarg = argv[optind++];
/* optarg is now the argument, see if it's in the
table of longopts. */
for (nextchar = nameend = optarg; *nameend && *nameend != '='; nameend++)
/* Do nothing. */ ;
/* Test all long options for either exact match
or abbreviated matches. */
for (p = longopts, option_index = 0; p->name; p++, option_index++)
if (!strncmp (p->name, nextchar, nameend - nextchar))
{
if ((unsigned int) (nameend - nextchar) == strlen (p->name))
{
/* Exact match found. */
pfound = p;
indfound = option_index;
exact = 1;
break;
}
else if (pfound == NULL)
{
/* First nonexact match found. */
pfound = p;
indfound = option_index;
}
else
/* Second or later nonexact match found. */
ambig = 1;
}
if (ambig && !exact)
{
if (opterr)
fprintf (stderr, _("%s: option `-W %s' is ambiguous\n"),
argv[0], argv[optind]);
nextchar += strlen (nextchar);
optind++;
return '?';
}
if (pfound != NULL)
{
option_index = indfound;
if (*nameend)
{
/* Don't test has_arg with >, because some C compilers don't
allow it to be used on enums. */
if (pfound->has_arg)
optarg = nameend + 1;
else
{
if (opterr)
fprintf (stderr, _("\
%s: option `-W %s' doesn't allow an argument\n"),
argv[0], pfound->name);
nextchar += strlen (nextchar);
return '?';
}
}
else if (pfound->has_arg == 1)
{
if (optind < argc)
optarg = argv[optind++];
else
{
if (opterr)
fprintf (stderr,
_("%s: option `%s' requires an argument\n"),
argv[0], argv[optind - 1]);
nextchar += strlen (nextchar);
return optstring[0] == ':' ? ':' : '?';
}
}
nextchar += strlen (nextchar);
if (longind != NULL)
*longind = option_index;
if (pfound->flag)
{
*(pfound->flag) = pfound->val;
return 0;
}
return pfound->val;
}
nextchar = NULL;
return 'W'; /* Let the application handle it. */
}
if (temp[1] == ':')
{
if (temp[2] == ':')
@ -601,7 +876,7 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
optind++;
}
else
optarg = 0;
optarg = NULL;
nextchar = NULL;
}
else
@ -618,14 +893,10 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
{
if (opterr)
{
#if 0
fprintf (stderr, "%s: option `-%c' requires an argument\n",
argv[0], c);
#else
/* 1003.2 specifies the format of this message. */
fprintf (stderr, "%s: option requires an argument -- %c\n",
argv[0], c);
#endif
fprintf (stderr,
_("%s: option requires an argument -- %c\n"),
argv[0], c);
}
optopt = c;
if (optstring[0] == ':')
@ -656,7 +927,7 @@ getopt (argc, argv, optstring)
0);
}
#endif /* _LIBC or not __GNU_LIBRARY__. */
#endif /* Not ELIDE_CODE. */
#ifdef TEST
@ -676,7 +947,7 @@ main (argc, argv)
int this_option_optind = optind ? optind : 1;
c = getopt (argc, argv, "abc:d:0123456789");
if (c == EOF)
if (c == -1)
break;
switch (c)

40
gnu/usr.bin/grep/getopt.h
View File

@ -1,19 +1,25 @@
/* Declarations for getopt.
Copyright (C) 1989, 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
Copyright (C) 1989,90,91,92,93,94,96,97, 98 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.
This file is part of the GNU C Library. Its master source is NOT part of
the C library, however. The master source lives in /gd/gnu/lib.
This program is distributed in the hope that it will be useful,
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/* $FreeBSD$ */
#ifndef _GETOPT_H
#define _GETOPT_H 1
@ -36,7 +42,7 @@ extern char *optarg;
On entry to `getopt', zero means this is the first call; initialize.
When `getopt' returns EOF, this is the index of the first of the
When `getopt' returns -1, this is the index of the first of the
non-option elements that the caller should itself scan.
Otherwise, `optind' communicates from one call to the next
@ -76,7 +82,7 @@ extern int optopt;
struct option
{
#if __STDC__
#if defined (__STDC__) && __STDC__
const char *name;
#else
char *name;
@ -94,15 +100,15 @@ struct option
#define required_argument 1
#define optional_argument 2
#if __STDC__
#if defined(__GNU_LIBRARY__)
#if defined (__STDC__) && __STDC__
#ifdef __GNU_LIBRARY__
/* Many other libraries have conflicting prototypes for getopt, with
differences in the consts, in stdlib.h. To avoid compilation
errors, only prototype getopt for the GNU C library. */
extern int getopt (int argc, char *const *argv, const char *shortopts);
#else /* not __GNU_LIBRARY__ */
extern int getopt ();
#endif /* not __GNU_LIBRARY__ */
#endif /* __GNU_LIBRARY__ */
extern int getopt_long (int argc, char *const *argv, const char *shortopts,
const struct option *longopts, int *longind);
extern int getopt_long_only (int argc, char *const *argv,
@ -120,7 +126,7 @@ extern int getopt_long ();
extern int getopt_long_only ();
extern int _getopt_internal ();
#endif /* not __STDC__ */
#endif /* __STDC__ */
#ifdef __cplusplus
}

75
gnu/usr.bin/grep/kwset.c
View File

@ -1,10 +1,9 @@
/* kwset.c - search for any of a set of keywords.
Copyright 1989 Free Software Foundation
Written August 1989 by Mike Haertel.
Copyright (C) 1989, 1998 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 1, or (at your option)
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
@ -14,11 +13,15 @@
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA. */
/* Written August 1989 by Mike Haertel.
The author may be reached (Email) at the address mike@ai.mit.edu,
or (US mail) as Mike Haertel c/o Free Software Foundation. */
/* $FreeBSD$ */
/* The algorithm implemented by these routines bears a startling resemblence
to one discovered by Beate Commentz-Walter, although it is not identical.
See "A String Matching Algorithm Fast on the Average," Technical Report,
@ -27,45 +30,20 @@
String Matching: An Aid to Bibliographic Search," CACM June 1975,
Vol. 18, No. 6, which describes the failure function used below. */
/* $FreeBSD$ */
#ifdef STDC_HEADERS
#include <limits.h>
#include <stdlib.h>
#else
#define INT_MAX 2147483647
#define UCHAR_MAX 255
#ifdef __STDC__
#include <stddef.h>
#else
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <sys/types.h>
#endif
extern char *malloc();
extern void free();
#endif
#ifdef HAVE_MEMCHR
#include <string.h>
#ifdef NEED_MEMORY_H
#include <memory.h>
#endif
#else
#ifdef __STDC__
extern void *memchr();
#else
extern char *memchr();
#endif
#endif
#include "system.h"
#include "kwset.h"
#include "obstack.h"
#ifdef GREP
extern char *xmalloc();
#define malloc xmalloc
# undef malloc
# define malloc xmalloc
#endif
#include "kwset.h"
#include "obstack.h"
#define NCHAR (UCHAR_MAX + 1)
#define obstack_chunk_alloc malloc
#define obstack_chunk_free free
@ -108,6 +86,15 @@ struct kwset
char *trans; /* Character translation table. */
};
/* prototypes */
static void enqueue PARAMS((struct tree *, struct trie **));
static void treefails PARAMS((register struct tree *, struct trie *, struct trie *));
static void treedelta PARAMS((register struct tree *,register unsigned int, unsigned char *));
static int hasevery PARAMS((register struct tree *, register struct tree *));
static void treenext PARAMS((struct tree *, struct trie **));
static char * bmexec PARAMS((kwset_t, char *, size_t));
static char * cwexec PARAMS((kwset_t, char *, size_t, struct kwsmatch *));
/* Allocate and initialize a keyword set object, returning an opaque
pointer to it. Return NULL if memory is not available. */
kwset_t
@ -196,13 +183,13 @@ kwsincr(kws, text, len)
link = (struct tree *) obstack_alloc(&kwset->obstack,
sizeof (struct tree));
if (!link)
return "memory exhausted";
return _("memory exhausted");
link->llink = 0;
link->rlink = 0;
link->trie = (struct trie *) obstack_alloc(&kwset->obstack,
sizeof (struct trie));
if (!link->trie)
return "memory exhausted";
return _("memory exhausted");
link->trie->accepting = 0;
link->trie->links = 0;
link->trie->parent = trie;
@ -251,6 +238,8 @@ kwsincr(kws, text, len)
r->balance = t->balance != (char) -1 ? 0 : 1;
t->balance = 0;
break;
default:
abort ();
}
break;
case 2:
@ -269,8 +258,12 @@ kwsincr(kws, text, len)
r->balance = t->balance != (char) -1 ? 0 : 1;
t->balance = 0;
break;
default:
abort ();
}
break;
default:
abort ();
}
if (dirs[depth - 1] == L)
@ -623,6 +616,10 @@ cwexec(kws, text, len, kwsmatch)
register struct tree *tree;
register char *trans;
#ifdef lint
accept = NULL;
#endif
/* Initialize register copies and look for easy ways out. */
kwset = (struct kwset *) kws;
if (len < kwset->mind)