04d34b3b6b83bb0c732d3656b1efc3ab6b309299
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, 99, 2000
7 Free Software Foundation, Inc.
9 The GNU C Library is free software; you can redistribute it and/or
10 modify it under the terms of the GNU Library General Public License as
11 published by the Free Software Foundation; either version 2 of the
12 License, or (at your option) any later version.
14 The GNU C Library is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 Library General Public License for more details.
19 You should have received a copy of the GNU Library General Public
20 License along with the GNU C Library; see the file COPYING.LIB. If not,
21 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
22 Boston, MA 02111-1307, USA. */
24 /* This tells Alpha OSF/1 not to define a getopt prototype in <stdio.h>.
25 Ditto for AIX 3.2 and <stdlib.h>. */
35 # define HAVE_STRING_H 1
38 #if !defined __STDC__ || !__STDC__
39 /* This is a separate conditional since some stdc systems
40 reject `defined (const)'. */
48 /* Comment out all this code if we are using the GNU C Library, and are not
49 actually compiling the library itself. This code is part of the GNU C
50 Library, but also included in many other GNU distributions. Compiling
51 and linking in this code is a waste when using the GNU C library
52 (especially if it is a shared library). Rather than having every GNU
53 program understand `configure --with-gnu-libc' and omit the object files,
54 it is simpler to just do this in the source for each such file. */
56 #define GETOPT_INTERFACE_VERSION 2
57 #if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
58 # include <gnu-versions.h>
59 # if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
67 /* This needs to come after some library #include
68 to get __GNU_LIBRARY__ defined. */
69 #ifdef __GNU_LIBRARY__
70 /* Don't include stdlib.h for non-GNU C libraries because some of them
71 contain conflicting prototypes for getopt. */
74 #endif /* GNU C library. */
78 # if HAVE_STRING_H - 0
84 /* This is for other GNU distributions with internationalized messages.
85 When compiling libc, the _ macro is predefined. */
86 # ifdef HAVE_LIBINTL_H
88 # define _(msgid) gettext (msgid)
90 # define _(msgid) (msgid)
94 /* This version of `getopt' appears to the caller like standard Unix `getopt'
95 but it behaves differently for the user, since it allows the user
96 to intersperse the options with the other arguments.
98 As `getopt' works, it permutes the elements of ARGV so that,
99 when it is done, all the options precede everything else. Thus
100 all application programs are extended to handle flexible argument order.
102 Setting the environment variable POSIXLY_CORRECT disables permutation.
103 Then the behavior is completely standard.
105 GNU application programs can use a third alternative mode in which
106 they can distinguish the relative order of options and other arguments. */
110 /* For communication from `getopt' to the caller.
111 When `getopt' finds an option that takes an argument,
112 the argument value is returned here.
113 Also, when `ordering' is RETURN_IN_ORDER,
114 each non-option ARGV-element is returned here. */
118 /* Index in ARGV of the next element to be scanned.
119 This is used for communication to and from the caller
120 and for communication between successive calls to `getopt'.
122 On entry to `getopt', zero means this is the first call; initialize.
124 When `getopt' returns -1, this is the index of the first of the
125 non-option elements that the caller should itself scan.
127 Otherwise, `optind' communicates from one call to the next
128 how much of ARGV has been scanned so far. */
130 /* 1003.2 says this must be 1 before any call. */
133 /* Formerly, initialization of getopt depended on optind==0, which
134 causes problems with re-calling getopt as programs generally don't
137 int __getopt_initialized
;
139 /* The next char to be scanned in the option-element
140 in which the last option character we returned was found.
141 This allows us to pick up the scan where we left off.
143 If this is zero, or a null string, it means resume the scan
144 by advancing to the next ARGV-element. */
146 static char *nextchar
;
148 /* Callers store zero here to inhibit the error message
149 for unrecognized options. */
153 /* Set to an option character which was unrecognized.
154 This must be initialized on some systems to avoid linking in the
155 system's own getopt implementation. */
159 /* Describe how to deal with options that follow non-option ARGV-elements.
161 If the caller did not specify anything,
162 the default is REQUIRE_ORDER if the environment variable
163 POSIXLY_CORRECT is defined, PERMUTE otherwise.
165 REQUIRE_ORDER means don't recognize them as options;
166 stop option processing when the first non-option is seen.
167 This is what Unix does.
168 This mode of operation is selected by either setting the environment
169 variable POSIXLY_CORRECT, or using `+' as the first character
170 of the list of option characters.
172 PERMUTE is the default. We permute the contents of ARGV as we scan,
173 so that eventually all the non-options are at the end. This allows options
174 to be given in any order, even with programs that were not written to
177 RETURN_IN_ORDER is an option available to programs that were written
178 to expect options and other ARGV-elements in any order and that care about
179 the ordering of the two. We describe each non-option ARGV-element
180 as if it were the argument of an option with character code 1.
181 Using `-' as the first character of the list of option characters
182 selects this mode of operation.
184 The special argument `--' forces an end of option-scanning regardless
185 of the value of `ordering'. In the case of RETURN_IN_ORDER, only
186 `--' can cause `getopt' to return -1 with `optind' != ARGC. */
190 REQUIRE_ORDER
, PERMUTE
, RETURN_IN_ORDER
193 /* Value of POSIXLY_CORRECT environment variable. */
194 static char *posixly_correct
;
196 #ifdef __GNU_LIBRARY__
197 /* We want to avoid inclusion of string.h with non-GNU libraries
198 because there are many ways it can cause trouble.
199 On some systems, it contains special magic macros that don't work
202 # define my_index strchr
208 # include <strings.h>
211 /* Avoid depending on library functions or files
212 whose names are inconsistent. */
215 extern char *getenv ();
232 /* If using GCC, we can safely declare strlen this way.
233 If not using GCC, it is ok not to declare it. */
235 /* Note that Motorola Delta 68k R3V7 comes with GCC but not stddef.h.
236 That was relevant to code that was here before. */
237 # if (!defined __STDC__ || !__STDC__) && !defined strlen
238 /* gcc with -traditional declares the built-in strlen to return int,
239 and has done so at least since version 2.4.5. -- rms. */
240 extern int strlen (const char *);
241 # endif /* not __STDC__ */
242 #endif /* __GNUC__ */
244 #endif /* not __GNU_LIBRARY__ */
246 /* Handle permutation of arguments. */
248 /* Describe the part of ARGV that contains non-options that have
249 been skipped. `first_nonopt' is the index in ARGV of the first of them;
250 `last_nonopt' is the index after the last of them. */
252 static int first_nonopt
;
253 static int last_nonopt
;
256 /* Bash 2.0 gives us an environment variable containing flags
257 indicating ARGV elements that should not be considered arguments. */
259 /* Defined in getopt_init.c */
260 extern char *__getopt_nonoption_flags
;
262 static int nonoption_flags_max_len
;
263 static int nonoption_flags_len
;
265 static int original_argc
;
266 static char *const *original_argv
;
268 /* Make sure the environment variable bash 2.0 puts in the environment
269 is valid for the getopt call we must make sure that the ARGV passed
270 to getopt is that one passed to the process. */
272 __attribute__ ((unused
))
273 store_args_and_env (int argc
, char *const *argv
)
275 /* XXX This is no good solution. We should rather copy the args so
276 that we can compare them later. But we must not use malloc(3). */
277 original_argc
= argc
;
278 original_argv
= argv
;
280 # ifdef text_set_element
281 text_set_element (__libc_subinit
, store_args_and_env
);
282 # endif /* text_set_element */
284 # define SWAP_FLAGS(ch1, ch2) \
285 if (nonoption_flags_len > 0) \
287 char __tmp = __getopt_nonoption_flags[ch1]; \
288 __getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2]; \
289 __getopt_nonoption_flags[ch2] = __tmp; \
292 # define SWAP_FLAGS(ch1, ch2)
295 /* Exchange two adjacent subsequences of ARGV.
296 One subsequence is elements [first_nonopt,last_nonopt)
297 which contains all the non-options that have been skipped so far.
298 The other is elements [last_nonopt,optind), which contains all
299 the options processed since those non-options were skipped.
301 `first_nonopt' and `last_nonopt' are relocated so that they describe
302 the new indices of the non-options in ARGV after they are moved. */
304 #if defined __STDC__ && __STDC__
305 static void exchange (char **);
312 int bottom
= first_nonopt
;
313 int middle
= last_nonopt
;
317 /* Exchange the shorter segment with the far end of the longer segment.
318 That puts the shorter segment into the right place.
319 It leaves the longer segment in the right place overall,
320 but it consists of two parts that need to be swapped next. */
323 /* First make sure the handling of the `__getopt_nonoption_flags'
324 string can work normally. Our top argument must be in the range
326 if (nonoption_flags_len
> 0 && top
>= nonoption_flags_max_len
)
328 /* We must extend the array. The user plays games with us and
329 presents new arguments. */
330 char *new_str
= malloc (top
+ 1);
332 nonoption_flags_len
= nonoption_flags_max_len
= 0;
335 memset (__mempcpy (new_str
, __getopt_nonoption_flags
,
336 nonoption_flags_max_len
),
337 '\0', top
+ 1 - nonoption_flags_max_len
);
338 nonoption_flags_max_len
= top
+ 1;
339 __getopt_nonoption_flags
= new_str
;
344 while (top
> middle
&& middle
> bottom
)
346 if (top
- middle
> middle
- bottom
)
348 /* Bottom segment is the short one. */
349 int len
= middle
- bottom
;
352 /* Swap it with the top part of the top segment. */
353 for (i
= 0; i
< len
; i
++)
355 tem
= argv
[bottom
+ i
];
356 argv
[bottom
+ i
] = argv
[top
- (middle
- bottom
) + i
];
357 argv
[top
- (middle
- bottom
) + i
] = tem
;
358 SWAP_FLAGS (bottom
+ i
, top
- (middle
- bottom
) + i
);
360 /* Exclude the moved bottom segment from further swapping. */
365 /* Top segment is the short one. */
366 int len
= top
- middle
;
369 /* Swap it with the bottom part of the bottom segment. */
370 for (i
= 0; i
< len
; i
++)
372 tem
= argv
[bottom
+ i
];
373 argv
[bottom
+ i
] = argv
[middle
+ i
];
374 argv
[middle
+ i
] = tem
;
375 SWAP_FLAGS (bottom
+ i
, middle
+ i
);
377 /* Exclude the moved top segment from further swapping. */
382 /* Update records for the slots the non-options now occupy. */
384 first_nonopt
+= (optind
- last_nonopt
);
385 last_nonopt
= optind
;
388 /* Initialize the internal data when the first call is made. */
390 #if defined __STDC__ && __STDC__
391 static const char *_getopt_initialize (int, char *const *, const char *);
394 _getopt_initialize (argc
, argv
, optstring
)
397 const char *optstring
;
399 /* Start processing options with ARGV-element 1 (since ARGV-element 0
400 is the program name); the sequence of previously skipped
401 non-option ARGV-elements is empty. */
403 first_nonopt
= last_nonopt
= optind
;
407 posixly_correct
= getenv ("POSIXLY_CORRECT");
409 /* Determine how to handle the ordering of options and nonoptions. */
411 if (optstring
[0] == '-')
413 ordering
= RETURN_IN_ORDER
;
416 else if (optstring
[0] == '+')
418 ordering
= REQUIRE_ORDER
;
421 else if (posixly_correct
!= NULL
)
422 ordering
= REQUIRE_ORDER
;
427 if (posixly_correct
== NULL
428 && argc
== original_argc
&& argv
== original_argv
)
430 if (nonoption_flags_max_len
== 0)
432 if (__getopt_nonoption_flags
== NULL
433 || __getopt_nonoption_flags
[0] == '\0')
434 nonoption_flags_max_len
= -1;
437 const char *orig_str
= __getopt_nonoption_flags
;
438 int len
= nonoption_flags_max_len
= strlen (orig_str
);
439 if (nonoption_flags_max_len
< argc
)
440 nonoption_flags_max_len
= argc
;
441 __getopt_nonoption_flags
=
442 (char *) malloc (nonoption_flags_max_len
);
443 if (__getopt_nonoption_flags
== NULL
)
444 nonoption_flags_max_len
= -1;
446 memset (__mempcpy (__getopt_nonoption_flags
, orig_str
, len
),
447 '\0', nonoption_flags_max_len
- len
);
450 nonoption_flags_len
= nonoption_flags_max_len
;
453 nonoption_flags_len
= 0;
459 /* Scan elements of ARGV (whose length is ARGC) for option characters
462 If an element of ARGV starts with '-', and is not exactly "-" or "--",
463 then it is an option element. The characters of this element
464 (aside from the initial '-') are option characters. If `getopt'
465 is called repeatedly, it returns successively each of the option characters
466 from each of the option elements.
468 If `getopt' finds another option character, it returns that character,
469 updating `optind' and `nextchar' so that the next call to `getopt' can
470 resume the scan with the following option character or ARGV-element.
472 If there are no more option characters, `getopt' returns -1.
473 Then `optind' is the index in ARGV of the first ARGV-element
474 that is not an option. (The ARGV-elements have been permuted
475 so that those that are not options now come last.)
477 OPTSTRING is a string containing the legitimate option characters.
478 If an option character is seen that is not listed in OPTSTRING,
479 return '?' after printing an error message. If you set `opterr' to
480 zero, the error message is suppressed but we still return '?'.
482 If a char in OPTSTRING is followed by a colon, that means it wants an arg,
483 so the following text in the same ARGV-element, or the text of the following
484 ARGV-element, is returned in `optarg'. Two colons mean an option that
485 wants an optional arg; if there is text in the current ARGV-element,
486 it is returned in `optarg', otherwise `optarg' is set to zero.
488 If OPTSTRING starts with `-' or `+', it requests different methods of
489 handling the non-option ARGV-elements.
490 See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above.
492 Long-named options begin with `--' instead of `-'.
493 Their names may be abbreviated as long as the abbreviation is unique
494 or is an exact match for some defined option. If they have an
495 argument, it follows the option name in the same ARGV-element, separated
496 from the option name by a `=', or else the in next ARGV-element.
497 When `getopt' finds a long-named option, it returns 0 if that option's
498 `flag' field is nonzero, the value of the option's `val' field
499 if the `flag' field is zero.
501 The elements of ARGV aren't really const, because we permute them.
502 But we pretend they're const in the prototype to be compatible
505 LONGOPTS is a vector of `struct option' terminated by an
506 element containing a name which is zero.
508 LONGIND returns the index in LONGOPT of the long-named option found.
509 It is only valid when a long-named option has been found by the most
512 If LONG_ONLY is nonzero, '-' as well as '--' can introduce
513 long-named options. */
516 _getopt_internal (argc
, argv
, optstring
, longopts
, longind
, long_only
)
519 const char *optstring
;
520 const struct option
*longopts
;
524 int print_errors
= opterr
;
525 if (optstring
[0] == ':')
530 if (optind
== 0 || !__getopt_initialized
)
533 optind
= 1; /* Don't scan ARGV[0], the program name. */
534 optstring
= _getopt_initialize (argc
, argv
, optstring
);
535 __getopt_initialized
= 1;
538 /* Test whether ARGV[optind] points to a non-option argument.
539 Either it does not have option syntax, or there is an environment flag
540 from the shell indicating it is not an option. The later information
541 is only used when the used in the GNU libc. */
543 # define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0' \
544 || (optind < nonoption_flags_len \
545 && __getopt_nonoption_flags[optind] == '1'))
547 # define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0')
550 if (nextchar
== NULL
|| *nextchar
== '\0')
552 /* Advance to the next ARGV-element. */
554 /* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been
555 moved back by the user (who may also have changed the arguments). */
556 if (last_nonopt
> optind
)
557 last_nonopt
= optind
;
558 if (first_nonopt
> optind
)
559 first_nonopt
= optind
;
561 if (ordering
== PERMUTE
)
563 /* If we have just processed some options following some non-options,
564 exchange them so that the options come first. */
566 if (first_nonopt
!= last_nonopt
&& last_nonopt
!= optind
)
567 exchange ((char **) argv
);
568 else if (last_nonopt
!= optind
)
569 first_nonopt
= optind
;
571 /* Skip any additional non-options
572 and extend the range of non-options previously skipped. */
574 while (optind
< argc
&& NONOPTION_P
)
576 last_nonopt
= optind
;
579 /* The special ARGV-element `--' means premature end of options.
580 Skip it like a null option,
581 then exchange with previous non-options as if it were an option,
582 then skip everything else like a non-option. */
584 if (optind
!= argc
&& !strcmp (argv
[optind
], "--"))
588 if (first_nonopt
!= last_nonopt
&& last_nonopt
!= optind
)
589 exchange ((char **) argv
);
590 else if (first_nonopt
== last_nonopt
)
591 first_nonopt
= optind
;
597 /* If we have done all the ARGV-elements, stop the scan
598 and back over any non-options that we skipped and permuted. */
602 /* Set the next-arg-index to point at the non-options
603 that we previously skipped, so the caller will digest them. */
604 if (first_nonopt
!= last_nonopt
)
605 optind
= first_nonopt
;
609 /* If we have come to a non-option and did not permute it,
610 either stop the scan or describe it to the caller and pass it by. */
614 if (ordering
== REQUIRE_ORDER
)
616 optarg
= argv
[optind
++];
620 /* We have found another option-ARGV-element.
621 Skip the initial punctuation. */
623 nextchar
= (argv
[optind
] + 1
624 + (longopts
!= NULL
&& argv
[optind
][1] == '-'));
627 /* Decode the current option-ARGV-element. */
629 /* Check whether the ARGV-element is a long option.
631 If long_only and the ARGV-element has the form "-f", where f is
632 a valid short option, don't consider it an abbreviated form of
633 a long option that starts with f. Otherwise there would be no
634 way to give the -f short option.
636 On the other hand, if there's a long option "fubar" and
637 the ARGV-element is "-fu", do consider that an abbreviation of
638 the long option, just like "--fu", and not "-f" with arg "u".
640 This distinction seems to be the most useful approach. */
643 && (argv
[optind
][1] == '-'
644 || (long_only
&& (argv
[optind
][2] || !my_index (optstring
, argv
[optind
][1])))))
647 const struct option
*p
;
648 const struct option
*pfound
= NULL
;
654 for (nameend
= nextchar
; *nameend
&& *nameend
!= '='; nameend
++)
657 /* Test all long options for either exact match
658 or abbreviated matches. */
659 for (p
= longopts
, option_index
= 0; p
->name
; p
++, option_index
++)
660 if (!strncmp (p
->name
, nextchar
, nameend
- nextchar
))
662 if ((unsigned int) (nameend
- nextchar
)
663 == (unsigned int) strlen (p
->name
))
665 /* Exact match found. */
667 indfound
= option_index
;
671 else if (pfound
== NULL
)
673 /* First nonexact match found. */
675 indfound
= option_index
;
678 /* Second or later nonexact match found. */
685 fprintf (stderr
, _("%s: option `%s' is ambiguous\n"),
686 argv
[0], argv
[optind
]);
687 nextchar
+= strlen (nextchar
);
695 option_index
= indfound
;
699 /* Don't test has_arg with >, because some C compilers don't
700 allow it to be used on enums. */
702 optarg
= nameend
+ 1;
707 if (argv
[optind
- 1][1] == '-')
710 _("%s: option `--%s' doesn't allow an argument\n"),
711 argv
[0], pfound
->name
);
713 /* +option or -option */
715 _("%s: option `%c%s' doesn't allow an argument\n"),
716 argv
[0], argv
[optind
- 1][0], pfound
->name
);
719 nextchar
+= strlen (nextchar
);
721 optopt
= pfound
->val
;
725 else if (pfound
->has_arg
== 1)
728 optarg
= argv
[optind
++];
733 _("%s: option `%s' requires an argument\n"),
734 argv
[0], argv
[optind
- 1]);
735 nextchar
+= strlen (nextchar
);
736 optopt
= pfound
->val
;
737 return optstring
[0] == ':' ?
':' : '?';
740 nextchar
+= strlen (nextchar
);
742 *longind
= option_index
;
745 *(pfound
->flag
) = pfound
->val
;
751 /* Can't find it as a long option. If this is not getopt_long_only,
752 or the option starts with '--' or is not a valid short
753 option, then it's an error.
754 Otherwise interpret it as a short option. */
755 if (!long_only
|| argv
[optind
][1] == '-'
756 || my_index (optstring
, *nextchar
) == NULL
)
760 if (argv
[optind
][1] == '-')
762 fprintf (stderr
, _("%s: unrecognized option `--%s'\n"),
765 /* +option or -option */
766 fprintf (stderr
, _("%s: unrecognized option `%c%s'\n"),
767 argv
[0], argv
[optind
][0], nextchar
);
769 nextchar
= (char *) "";
776 /* Look at and handle the next short option-character. */
779 char c
= *nextchar
++;
780 char *temp
= my_index (optstring
, c
);
782 /* Increment `optind' when we start to process its last character. */
783 if (*nextchar
== '\0')
786 if (temp
== NULL
|| c
== ':')
791 /* 1003.2 specifies the format of this message. */
792 fprintf (stderr
, _("%s: illegal option -- %c\n"),
795 fprintf (stderr
, _("%s: invalid option -- %c\n"),
801 /* Convenience. Treat POSIX -W foo same as long option --foo */
802 if (temp
[0] == 'W' && temp
[1] == ';')
805 const struct option
*p
;
806 const struct option
*pfound
= NULL
;
812 /* This is an option that requires an argument. */
813 if (*nextchar
!= '\0')
816 /* If we end this ARGV-element by taking the rest as an arg,
817 we must advance to the next element now. */
820 else if (optind
== argc
)
824 /* 1003.2 specifies the format of this message. */
825 fprintf (stderr
, _("%s: option requires an argument -- %c\n"),
829 if (optstring
[0] == ':')
836 /* We already incremented `optind' once;
837 increment it again when taking next ARGV-elt as argument. */
838 optarg
= argv
[optind
++];
840 /* optarg is now the argument, see if it's in the
841 table of longopts. */
843 for (nextchar
= nameend
= optarg
; *nameend
&& *nameend
!= '='; nameend
++)
846 /* Test all long options for either exact match
847 or abbreviated matches. */
848 for (p
= longopts
, option_index
= 0; p
->name
; p
++, option_index
++)
849 if (!strncmp (p
->name
, nextchar
, nameend
- nextchar
))
851 if ((unsigned int) (nameend
- nextchar
) == strlen (p
->name
))
853 /* Exact match found. */
855 indfound
= option_index
;
859 else if (pfound
== NULL
)
861 /* First nonexact match found. */
863 indfound
= option_index
;
866 /* Second or later nonexact match found. */
872 fprintf (stderr
, _("%s: option `-W %s' is ambiguous\n"),
873 argv
[0], argv
[optind
]);
874 nextchar
+= strlen (nextchar
);
880 option_index
= indfound
;
883 /* Don't test has_arg with >, because some C compilers don't
884 allow it to be used on enums. */
886 optarg
= nameend
+ 1;
890 fprintf (stderr
, _("\
891 %s: option `-W %s' doesn't allow an argument\n"),
892 argv
[0], pfound
->name
);
894 nextchar
+= strlen (nextchar
);
898 else if (pfound
->has_arg
== 1)
901 optarg
= argv
[optind
++];
906 _("%s: option `%s' requires an argument\n"),
907 argv
[0], argv
[optind
- 1]);
908 nextchar
+= strlen (nextchar
);
909 return optstring
[0] == ':' ?
':' : '?';
912 nextchar
+= strlen (nextchar
);
914 *longind
= option_index
;
917 *(pfound
->flag
) = pfound
->val
;
923 return 'W'; /* Let the application handle it. */
929 /* This is an option that accepts an argument optionally. */
930 if (*nextchar
!= '\0')
941 /* This is an option that requires an argument. */
942 if (*nextchar
!= '\0')
945 /* If we end this ARGV-element by taking the rest as an arg,
946 we must advance to the next element now. */
949 else if (optind
== argc
)
953 /* 1003.2 specifies the format of this message. */
955 _("%s: option requires an argument -- %c\n"),
959 if (optstring
[0] == ':')
965 /* We already incremented `optind' once;
966 increment it again when taking next ARGV-elt as argument. */
967 optarg
= argv
[optind
++];
976 getopt (argc
, argv
, optstring
)
979 const char *optstring
;
981 return _getopt_internal (argc
, argv
, optstring
,
982 (const struct option
*) 0,
987 #endif /* Not ELIDE_CODE. */
991 /* Compile with -DTEST to make an executable for use in testing
992 the above definition of `getopt'. */
1000 int digit_optind
= 0;
1004 int this_option_optind
= optind ? optind
: 1;
1006 c
= getopt (argc
, argv
, "abc:d:0123456789");
1022 if (digit_optind
!= 0 && digit_optind
!= this_option_optind
)
1023 printf ("digits occur in two different argv-elements.\n");
1024 digit_optind
= this_option_optind
;
1025 printf ("option %c\n", c
);
1029 printf ("option a\n");
1033 printf ("option b\n");
1037 printf ("option c with value `%s'\n", optarg
);
1044 printf ("?? getopt returned character code 0%o ??\n", c
);
1050 printf ("non-option ARGV-elements: ");
1051 while (optind
< argc
)
1052 printf ("%s ", argv
[optind
++]);