2 NOTE: getopt is now part of the C library, so if you don't know what
3 "Keep this file name-space clean" means, talk to drepper@gnu.org
6 Copyright (C) 1987, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98
7 Free Software Foundation, Inc.
9 NOTE: This source is derived from an old version taken from the GNU C
12 This program is free software; you can redistribute it and/or modify it
13 under the terms of the GNU General Public License as published by the
14 Free Software Foundation; either version 2, or (at your option) any
17 This program is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 GNU General Public License for more details.
22 You should have received a copy of the GNU General Public License
23 along with this program; if not, write to the Free Software
24 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
27 /* This tells Alpha OSF/1 not to define a getopt prototype in <stdio.h>.
28 Ditto for AIX 3.2 and <stdlib.h>. */
37 #if !defined __STDC__ || !__STDC__
38 /* This is a separate conditional since some stdc systems
39 reject `defined (const)'. */
47 /* Comment out all this code if we are using the GNU C Library, and are not
48 actually compiling the library itself. This code is part of the GNU C
49 Library, but also included in many other GNU distributions. Compiling
50 and linking in this code is a waste when using the GNU C library
51 (especially if it is a shared library). Rather than having every GNU
52 program understand `configure --with-gnu-libc' and omit the object files,
53 it is simpler to just do this in the source for each such file. */
55 #define GETOPT_INTERFACE_VERSION 2
56 #if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
57 # include <gnu-versions.h>
58 # if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
66 /* This needs to come after some library #include
67 to get __GNU_LIBRARY__ defined. */
68 #ifdef __GNU_LIBRARY__
69 /* Don't include stdlib.h for non-GNU C libraries because some of them
70 contain conflicting prototypes for getopt. */
73 #endif /* GNU C library. */
77 # if HAVE_STRING_H - 0
83 /* This is for other GNU distributions with internationalized messages.
84 When compiling libc, the _ macro is predefined. */
85 # if (HAVE_LIBINTL_H && ENABLE_NLS) || defined _LIBC
87 # define _(msgid) gettext (msgid)
89 # define _(msgid) (msgid)
93 /* This version of `getopt' appears to the caller like standard Unix `getopt'
94 but it behaves differently for the user, since it allows the user
95 to intersperse the options with the other arguments.
97 As `getopt' works, it permutes the elements of ARGV so that,
98 when it is done, all the options precede everything else. Thus
99 all application programs are extended to handle flexible argument order.
101 Setting the environment variable POSIXLY_CORRECT disables permutation.
102 Then the behavior is completely standard.
104 GNU application programs can use a third alternative mode in which
105 they can distinguish the relative order of options and other arguments. */
109 /* For communication from `getopt' to the caller.
110 When `getopt' finds an option that takes an argument,
111 the argument value is returned here.
112 Also, when `ordering' is RETURN_IN_ORDER,
113 each non-option ARGV-element is returned here. */
117 /* Index in ARGV of the next element to be scanned.
118 This is used for communication to and from the caller
119 and for communication between successive calls to `getopt'.
121 On entry to `getopt', zero means this is the first call; initialize.
123 When `getopt' returns -1, this is the index of the first of the
124 non-option elements that the caller should itself scan.
126 Otherwise, `optind' communicates from one call to the next
127 how much of ARGV has been scanned so far. */
129 /* 1003.2 says this must be 1 before any call. */
132 /* Formerly, initialization of getopt depended on optind==0, which
133 causes problems with re-calling getopt as programs generally don't
136 int __getopt_initialized
= 0;
138 /* The next char to be scanned in the option-element
139 in which the last option character we returned was found.
140 This allows us to pick up the scan where we left off.
142 If this is zero, or a null string, it means resume the scan
143 by advancing to the next ARGV-element. */
145 static char *nextchar
;
147 /* Callers store zero here to inhibit the error message
148 for unrecognized options. */
152 /* Set to an option character which was unrecognized.
153 This must be initialized on some systems to avoid linking in the
154 system's own getopt implementation. */
158 /* Describe how to deal with options that follow non-option ARGV-elements.
160 If the caller did not specify anything,
161 the default is REQUIRE_ORDER if the environment variable
162 POSIXLY_CORRECT is defined, PERMUTE otherwise.
164 REQUIRE_ORDER means don't recognize them as options;
165 stop option processing when the first non-option is seen.
166 This is what Unix does.
167 This mode of operation is selected by either setting the environment
168 variable POSIXLY_CORRECT, or using `+' as the first character
169 of the list of option characters.
171 PERMUTE is the default. We permute the contents of ARGV as we scan,
172 so that eventually all the non-options are at the end. This allows options
173 to be given in any order, even with programs that were not written to
176 RETURN_IN_ORDER is an option available to programs that were written
177 to expect options and other ARGV-elements in any order and that care about
178 the ordering of the two. We describe each non-option ARGV-element
179 as if it were the argument of an option with character code 1.
180 Using `-' as the first character of the list of option characters
181 selects this mode of operation.
183 The special argument `--' forces an end of option-scanning regardless
184 of the value of `ordering'. In the case of RETURN_IN_ORDER, only
185 `--' can cause `getopt' to return -1 with `optind' != ARGC. */
189 REQUIRE_ORDER
, PERMUTE
, RETURN_IN_ORDER
192 /* Value of POSIXLY_CORRECT environment variable. */
193 static char *posixly_correct
;
195 #ifdef __GNU_LIBRARY__
196 /* We want to avoid inclusion of string.h with non-GNU libraries
197 because there are many ways it can cause trouble.
198 On some systems, it contains special magic macros that don't work
201 # define my_index strchr
208 # include <strings.h>
212 /* Avoid depending on library functions or files
213 whose names are inconsistent. */
216 extern char *getenv ();
220 my_index (const char *str
, int chr
)
231 /* If using GCC, we can safely declare strlen this way.
232 If not using GCC, it is ok not to declare it. */
234 /* Note that Motorola Delta 68k R3V7 comes with GCC but not stddef.h.
235 That was relevant to code that was here before. */
236 # if (!defined __STDC__ || !__STDC__) && !defined strlen
237 /* gcc with -traditional declares the built-in strlen to return int,
238 and has done so at least since version 2.4.5. -- rms. */
239 extern int strlen (const char *);
240 # endif /* not __STDC__ */
241 #endif /* __GNUC__ */
243 #endif /* not __GNU_LIBRARY__ */
245 /* Handle permutation of arguments. */
247 /* Describe the part of ARGV that contains non-options that have
248 been skipped. `first_nonopt' is the index in ARGV of the first of them;
249 `last_nonopt' is the index after the last of them. */
251 static int first_nonopt
;
252 static int last_nonopt
;
255 /* Bash 2.0 gives us an environment variable containing flags
256 indicating ARGV elements that should not be considered arguments. */
258 /* Defined in getopt_init.c */
259 extern char *__getopt_nonoption_flags
;
261 static int nonoption_flags_max_len
;
262 static int nonoption_flags_len
;
264 static int original_argc
;
265 static char *const *original_argv
;
267 /* Make sure the environment variable bash 2.0 puts in the environment
268 is valid for the getopt call we must make sure that the ARGV passed
269 to getopt is that one passed to the process. */
271 __attribute__ ((unused
))
272 store_args_and_env (int argc
, char *const *argv
)
274 /* XXX This is no good solution. We should rather copy the args so
275 that we can compare them later. But we must not use malloc(3). */
276 original_argc
= argc
;
277 original_argv
= argv
;
279 # ifdef text_set_element
280 text_set_element (__libc_subinit
, store_args_and_env
);
281 # endif /* text_set_element */
283 # define SWAP_FLAGS(ch1, ch2) \
284 if (nonoption_flags_len > 0) \
286 char __tmp = __getopt_nonoption_flags[ch1]; \
287 __getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2]; \
288 __getopt_nonoption_flags[ch2] = __tmp; \
291 # define SWAP_FLAGS(ch1, ch2)
294 /* Exchange two adjacent subsequences of ARGV.
295 One subsequence is elements [first_nonopt,last_nonopt)
296 which contains all the non-options that have been skipped so far.
297 The other is elements [last_nonopt,optind), which contains all
298 the options processed since those non-options were skipped.
300 `first_nonopt' and `last_nonopt' are relocated so that they describe
301 the new indices of the non-options in ARGV after they are moved. */
303 #if defined __STDC__ && __STDC__
304 static void exchange (char **);
308 exchange (char **argv
)
310 int bottom
= first_nonopt
;
311 int middle
= last_nonopt
;
315 /* Exchange the shorter segment with the far end of the longer segment.
316 That puts the shorter segment into the right place.
317 It leaves the longer segment in the right place overall,
318 but it consists of two parts that need to be swapped next. */
321 /* First make sure the handling of the `__getopt_nonoption_flags'
322 string can work normally. Our top argument must be in the range
324 if (nonoption_flags_len
> 0 && top
>= nonoption_flags_max_len
)
326 /* We must extend the array. The user plays games with us and
327 presents new arguments. */
328 char *new_str
= malloc (top
+ 1);
330 nonoption_flags_len
= nonoption_flags_max_len
= 0;
333 memset (mempcpy (new_str
, __getopt_nonoption_flags
,
334 nonoption_flags_max_len
),
335 '\0', top
+ 1 - nonoption_flags_max_len
);
336 nonoption_flags_max_len
= top
+ 1;
337 __getopt_nonoption_flags
= new_str
;
342 while (top
> middle
&& middle
> bottom
)
344 if (top
- middle
> middle
- bottom
)
346 /* Bottom segment is the short one. */
347 int len
= middle
- bottom
;
350 /* Swap it with the top part of the top segment. */
351 for (i
= 0; i
< len
; i
++)
353 tem
= argv
[bottom
+ i
];
354 argv
[bottom
+ i
] = argv
[top
- (middle
- bottom
) + i
];
355 argv
[top
- (middle
- bottom
) + i
] = tem
;
356 SWAP_FLAGS (bottom
+ i
, top
- (middle
- bottom
) + i
);
358 /* Exclude the moved bottom segment from further swapping. */
363 /* Top segment is the short one. */
364 int len
= top
- middle
;
367 /* Swap it with the bottom part of the bottom segment. */
368 for (i
= 0; i
< len
; i
++)
370 tem
= argv
[bottom
+ i
];
371 argv
[bottom
+ i
] = argv
[middle
+ i
];
372 argv
[middle
+ i
] = tem
;
373 SWAP_FLAGS (bottom
+ i
, middle
+ i
);
375 /* Exclude the moved top segment from further swapping. */
380 /* Update records for the slots the non-options now occupy. */
382 first_nonopt
+= (optind
- last_nonopt
);
383 last_nonopt
= optind
;
386 /* Initialize the internal data when the first call is made. */
388 #if defined __STDC__ && __STDC__
389 static const char *_getopt_initialize (int, char *const *, const char *);
392 _getopt_initialize (int argc
, char *const *argv
, const char *optstring
)
394 /* Start processing options with ARGV-element 1 (since ARGV-element 0
395 is the program name); the sequence of previously skipped
396 non-option ARGV-elements is empty. */
398 first_nonopt
= last_nonopt
= optind
;
402 posixly_correct
= getenv ("POSIXLY_CORRECT");
404 /* Determine how to handle the ordering of options and nonoptions. */
406 if (optstring
[0] == '-')
408 ordering
= RETURN_IN_ORDER
;
411 else if (optstring
[0] == '+')
413 ordering
= REQUIRE_ORDER
;
416 else if (posixly_correct
!= NULL
)
417 ordering
= REQUIRE_ORDER
;
422 if (posixly_correct
== NULL
423 && argc
== original_argc
&& argv
== original_argv
)
425 if (nonoption_flags_max_len
== 0)
427 if (__getopt_nonoption_flags
== NULL
428 || __getopt_nonoption_flags
[0] == '\0')
429 nonoption_flags_max_len
= -1;
432 const char *orig_str
= __getopt_nonoption_flags
;
433 int len
= nonoption_flags_max_len
= strlen (orig_str
);
434 if (nonoption_flags_max_len
< argc
)
435 nonoption_flags_max_len
= argc
;
436 __getopt_nonoption_flags
=
437 (char *) malloc (nonoption_flags_max_len
);
438 if (__getopt_nonoption_flags
== NULL
)
439 nonoption_flags_max_len
= -1;
441 memset (mempcpy (__getopt_nonoption_flags
, orig_str
, len
),
442 '\0', nonoption_flags_max_len
- len
);
445 nonoption_flags_len
= nonoption_flags_max_len
;
448 nonoption_flags_len
= 0;
454 /* Scan elements of ARGV (whose length is ARGC) for option characters
457 If an element of ARGV starts with '-', and is not exactly "-" or "--",
458 then it is an option element. The characters of this element
459 (aside from the initial '-') are option characters. If `getopt'
460 is called repeatedly, it returns successively each of the option characters
461 from each of the option elements.
463 If `getopt' finds another option character, it returns that character,
464 updating `optind' and `nextchar' so that the next call to `getopt' can
465 resume the scan with the following option character or ARGV-element.
467 If there are no more option characters, `getopt' returns -1.
468 Then `optind' is the index in ARGV of the first ARGV-element
469 that is not an option. (The ARGV-elements have been permuted
470 so that those that are not options now come last.)
472 OPTSTRING is a string containing the legitimate option characters.
473 If an option character is seen that is not listed in OPTSTRING,
474 return '?' after printing an error message. If you set `opterr' to
475 zero, the error message is suppressed but we still return '?'.
477 If a char in OPTSTRING is followed by a colon, that means it wants an arg,
478 so the following text in the same ARGV-element, or the text of the following
479 ARGV-element, is returned in `optarg'. Two colons mean an option that
480 wants an optional arg; if there is text in the current ARGV-element,
481 it is returned in `optarg', otherwise `optarg' is set to zero.
483 If OPTSTRING starts with `-' or `+', it requests different methods of
484 handling the non-option ARGV-elements.
485 See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above.
487 Long-named options begin with `--' instead of `-'.
488 Their names may be abbreviated as long as the abbreviation is unique
489 or is an exact match for some defined option. If they have an
490 argument, it follows the option name in the same ARGV-element, separated
491 from the option name by a `=', or else the in next ARGV-element.
492 When `getopt' finds a long-named option, it returns 0 if that option's
493 `flag' field is nonzero, the value of the option's `val' field
494 if the `flag' field is zero.
496 The elements of ARGV aren't really const, because we permute them.
497 But we pretend they're const in the prototype to be compatible
500 LONGOPTS is a vector of `struct option' terminated by an
501 element containing a name which is zero.
503 LONGIND returns the index in LONGOPT of the long-named option found.
504 It is only valid when a long-named option has been found by the most
507 If LONG_ONLY is nonzero, '-' as well as '--' can introduce
508 long-named options. */
511 _getopt_internal (int argc
, char *const *argv
, const char *optstring
,
512 const struct option
*longopts
,
513 int *longind
, int long_only
)
517 if (optind
== 0 || !__getopt_initialized
)
520 optind
= 1; /* Don't scan ARGV[0], the program name. */
521 optstring
= _getopt_initialize (argc
, argv
, optstring
);
522 __getopt_initialized
= 1;
525 /* Test whether ARGV[optind] points to a non-option argument.
526 Either it does not have option syntax, or there is an environment flag
527 from the shell indicating it is not an option. The later information
528 is only used when the used in the GNU libc. */
530 # define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0' \
531 || (optind < nonoption_flags_len \
532 && __getopt_nonoption_flags[optind] == '1'))
534 # define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0')
537 if (nextchar
== NULL
|| *nextchar
== '\0')
539 /* Advance to the next ARGV-element. */
541 /* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been
542 moved back by the user (who may also have changed the arguments). */
543 if (last_nonopt
> optind
)
544 last_nonopt
= optind
;
545 if (first_nonopt
> optind
)
546 first_nonopt
= optind
;
548 if (ordering
== PERMUTE
)
550 /* If we have just processed some options following some non-options,
551 exchange them so that the options come first. */
553 if (first_nonopt
!= last_nonopt
&& last_nonopt
!= optind
)
554 exchange ((char **) argv
);
555 else if (last_nonopt
!= optind
)
556 first_nonopt
= optind
;
558 /* Skip any additional non-options
559 and extend the range of non-options previously skipped. */
561 while (optind
< argc
&& NONOPTION_P
)
563 last_nonopt
= optind
;
566 /* The special ARGV-element `--' means premature end of options.
567 Skip it like a null option,
568 then exchange with previous non-options as if it were an option,
569 then skip everything else like a non-option. */
571 if (optind
!= argc
&& !strcmp (argv
[optind
], "--"))
575 if (first_nonopt
!= last_nonopt
&& last_nonopt
!= optind
)
576 exchange ((char **) argv
);
577 else if (first_nonopt
== last_nonopt
)
578 first_nonopt
= optind
;
584 /* If we have done all the ARGV-elements, stop the scan
585 and back over any non-options that we skipped and permuted. */
589 /* Set the next-arg-index to point at the non-options
590 that we previously skipped, so the caller will digest them. */
591 if (first_nonopt
!= last_nonopt
)
592 optind
= first_nonopt
;
596 /* If we have come to a non-option and did not permute it,
597 either stop the scan or describe it to the caller and pass it by. */
601 if (ordering
== REQUIRE_ORDER
)
603 optarg
= argv
[optind
++];
607 /* We have found another option-ARGV-element.
608 Skip the initial punctuation. */
610 nextchar
= (argv
[optind
] + 1
611 + (longopts
!= NULL
&& argv
[optind
][1] == '-'));
614 /* Decode the current option-ARGV-element. */
616 /* Check whether the ARGV-element is a long option.
618 If long_only and the ARGV-element has the form "-f", where f is
619 a valid short option, don't consider it an abbreviated form of
620 a long option that starts with f. Otherwise there would be no
621 way to give the -f short option.
623 On the other hand, if there's a long option "fubar" and
624 the ARGV-element is "-fu", do consider that an abbreviation of
625 the long option, just like "--fu", and not "-f" with arg "u".
627 This distinction seems to be the most useful approach. */
630 && (argv
[optind
][1] == '-'
631 || (long_only
&& (argv
[optind
][2] || !my_index (optstring
, argv
[optind
][1])))))
634 const struct option
*p
;
635 const struct option
*pfound
= NULL
;
641 for (nameend
= nextchar
; *nameend
&& *nameend
!= '='; nameend
++)
644 /* Test all long options for either exact match
645 or abbreviated matches. */
646 for (p
= longopts
, option_index
= 0; p
->name
; p
++, option_index
++)
647 if (!strncmp (p
->name
, nextchar
, nameend
- nextchar
))
649 if ((unsigned int) (nameend
- nextchar
)
650 == (unsigned int) strlen (p
->name
))
652 /* Exact match found. */
654 indfound
= option_index
;
658 else if (pfound
== NULL
)
660 /* First nonexact match found. */
662 indfound
= option_index
;
665 /* Second or later nonexact match found. */
672 fprintf (stderr
, _("%s: option `%s' is ambiguous\n"),
673 argv
[0], argv
[optind
]);
674 nextchar
+= strlen (nextchar
);
682 option_index
= indfound
;
686 /* Don't test has_arg with >, because some C compilers don't
687 allow it to be used on enums. */
689 optarg
= nameend
+ 1;
694 if (argv
[optind
- 1][1] == '-')
697 _("%s: option `--%s' doesn't allow an argument\n"),
698 argv
[0], pfound
->name
);
700 /* +option or -option */
702 _("%s: option `%c%s' doesn't allow an argument\n"),
703 argv
[0], argv
[optind
- 1][0], pfound
->name
);
705 nextchar
+= strlen (nextchar
);
707 optopt
= pfound
->val
;
712 else if (pfound
->has_arg
== 1)
715 optarg
= argv
[optind
++];
720 _("%s: option `%s' requires an argument\n"),
721 argv
[0], argv
[optind
- 1]);
722 nextchar
+= strlen (nextchar
);
723 optopt
= pfound
->val
;
724 return optstring
[0] == ':' ? ':' : '?';
727 nextchar
+= strlen (nextchar
);
729 *longind
= option_index
;
732 *(pfound
->flag
) = pfound
->val
;
738 /* Can't find it as a long option. If this is not getopt_long_only,
739 or the option starts with '--' or is not a valid short
740 option, then it's an error.
741 Otherwise interpret it as a short option. */
742 if (!long_only
|| argv
[optind
][1] == '-'
743 || my_index (optstring
, *nextchar
) == NULL
)
747 if (argv
[optind
][1] == '-')
749 fprintf (stderr
, _("%s: unrecognized option `--%s'\n"),
752 /* +option or -option */
753 fprintf (stderr
, _("%s: unrecognized option `%c%s'\n"),
754 argv
[0], argv
[optind
][0], nextchar
);
756 nextchar
= (char *) "";
763 /* Look at and handle the next short option-character. */
766 char c
= *nextchar
++;
767 char *temp
= my_index (optstring
, c
);
769 /* Increment `optind' when we start to process its last character. */
770 if (*nextchar
== '\0')
773 if (temp
== NULL
|| c
== ':')
778 /* 1003.2 specifies the format of this message. */
779 fprintf (stderr
, _("%s: illegal option -- %c\n"),
782 fprintf (stderr
, _("%s: invalid option -- %c\n"),
788 /* Convenience. Treat POSIX -W foo same as long option --foo */
789 if (temp
[0] == 'W' && temp
[1] == ';')
792 const struct option
*p
;
793 const struct option
*pfound
= NULL
;
799 /* This is an option that requires an argument. */
800 if (*nextchar
!= '\0')
803 /* If we end this ARGV-element by taking the rest as an arg,
804 we must advance to the next element now. */
807 else if (optind
== argc
)
811 /* 1003.2 specifies the format of this message. */
812 fprintf (stderr
, _("%s: option requires an argument -- %c\n"),
816 if (optstring
[0] == ':')
823 /* We already incremented `optind' once;
824 increment it again when taking next ARGV-elt as argument. */
825 optarg
= argv
[optind
++];
827 /* optarg is now the argument, see if it's in the
828 table of longopts. */
830 for (nextchar
= nameend
= optarg
; *nameend
&& *nameend
!= '='; nameend
++)
833 /* Test all long options for either exact match
834 or abbreviated matches. */
835 for (p
= longopts
, option_index
= 0; p
->name
; p
++, option_index
++)
836 if (!strncmp (p
->name
, nextchar
, nameend
- nextchar
))
838 if ((unsigned int) (nameend
- nextchar
) == strlen (p
->name
))
840 /* Exact match found. */
842 indfound
= option_index
;
846 else if (pfound
== NULL
)
848 /* First nonexact match found. */
850 indfound
= option_index
;
853 /* Second or later nonexact match found. */
859 fprintf (stderr
, _("%s: option `-W %s' is ambiguous\n"),
860 argv
[0], argv
[optind
]);
861 nextchar
+= strlen (nextchar
);
867 option_index
= indfound
;
870 /* Don't test has_arg with >, because some C compilers don't
871 allow it to be used on enums. */
873 optarg
= nameend
+ 1;
877 fprintf (stderr
, _("\
878 %s: option `-W %s' doesn't allow an argument\n"),
879 argv
[0], pfound
->name
);
881 nextchar
+= strlen (nextchar
);
885 else if (pfound
->has_arg
== 1)
888 optarg
= argv
[optind
++];
893 _("%s: option `%s' requires an argument\n"),
894 argv
[0], argv
[optind
- 1]);
895 nextchar
+= strlen (nextchar
);
896 return optstring
[0] == ':' ? ':' : '?';
899 nextchar
+= strlen (nextchar
);
901 *longind
= option_index
;
904 *(pfound
->flag
) = pfound
->val
;
910 return 'W'; /* Let the application handle it. */
916 /* This is an option that accepts an argument optionally. */
917 if (*nextchar
!= '\0')
928 /* This is an option that requires an argument. */
929 if (*nextchar
!= '\0')
932 /* If we end this ARGV-element by taking the rest as an arg,
933 we must advance to the next element now. */
936 else if (optind
== argc
)
940 /* 1003.2 specifies the format of this message. */
942 _("%s: option requires an argument -- %c\n"),
946 if (optstring
[0] == ':')
952 /* We already incremented `optind' once;
953 increment it again when taking next ARGV-elt as argument. */
954 optarg
= argv
[optind
++];
963 getopt (int argc
, char *const *argv
, const char *optstring
)
965 return _getopt_internal (argc
, argv
, optstring
,
966 (const struct option
*) 0,
971 #endif /* Not ELIDE_CODE. */
975 /* Compile with -DTEST to make an executable for use in testing
976 the above definition of `getopt'. */
979 main (int argc
, char **argv
)
982 int digit_optind
= 0;
986 int this_option_optind
= optind
? optind
: 1;
988 c
= getopt (argc
, argv
, "abc:d:0123456789");
1004 if (digit_optind
!= 0 && digit_optind
!= this_option_optind
)
1005 printf ("digits occur in two different argv-elements.\n");
1006 digit_optind
= this_option_optind
;
1007 printf ("option %c\n", c
);
1011 printf ("option a\n");
1015 printf ("option b\n");
1019 printf ("option c with value `%s'\n", optarg
);
1026 printf ("?? getopt returned character code 0%o ??\n", c
);
1032 printf ("non-option ARGV-elements: ");
1033 while (optind
< argc
)
1034 printf ("%s ", argv
[optind
++]);