3 I cannot get the vanilla getopt code to work (i.e. compile only what
4 is needed and not duplicate symbols found in the standard library)
5 on all the platforms that FLAC supports. In particular the gating
6 of code with the ELIDE_CODE #define is not accurate enough on systems
7 that are POSIX but not glibc. If someone has a patch that works on
8 GNU/Linux, Darwin, AND Solaris please submit it on the project page:
9 https://sourceforge.net/p/flac/patches/
11 In the meantime I have munged the global symbols and removed gates
12 around code, while at the same time trying to touch the original as
16 NOTE: getopt is now part of the C library, so if you don't know what
17 "Keep this file name-space clean" means, talk to drepper@gnu.org
20 Copyright (C) 1987, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99
21 Free Software Foundation, Inc.
23 The GNU C Library is free software; you can redistribute it and/or
24 modify it under the terms of the GNU Library General Public License as
25 published by the Free Software Foundation; either version 2 of the
26 License, or (at your option) any later version.
28 The GNU C Library is distributed in the hope that it will be useful,
29 but WITHOUT ANY WARRANTY; without even the implied warranty of
30 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
31 Library General Public License for more details.
33 You should have received a copy of the GNU Library General Public
34 License along with the GNU C Library; see the file COPYING.LIB. If not,
35 write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
36 Boston, MA 02110-1301, USA. */
38 /* This tells Alpha OSF/1 not to define a getopt prototype in <stdio.h>.
39 Ditto for AIX 3.2 and <stdlib.h>. */
48 #if !defined __STDC__ || !__STDC__
49 /* This is a separate conditional since some stdc systems
50 reject `defined (const)'. */
58 /* Comment out all this code if we are using the GNU C Library, and are not
59 actually compiling the library itself. This code is part of the GNU C
60 Library, but also included in many other GNU distributions. Compiling
61 and linking in this code is a waste when using the GNU C library
62 (especially if it is a shared library). Rather than having every GNU
63 program understand `configure --with-gnu-libc' and omit the object files,
64 it is simpler to just do this in the source for each such file. */
66 #define GETOPT_INTERFACE_VERSION 2
67 #if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
68 # include <gnu-versions.h>
69 # if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
75 /*[JEC] was:#ifndef ELIDE_CODE*/
78 /* This needs to come after some library #include
79 to get __GNU_LIBRARY__ defined. */
80 #ifdef __GNU_LIBRARY__
81 /* Don't include stdlib.h for non-GNU C libraries because some of them
82 contain conflicting prototypes for getopt. */
85 #endif /* GNU C library. */
89 # if HAVE_STRING_H - 0
95 /* This is for other GNU distributions with internationalized messages.
96 When compiling libc, the _ macro is predefined. */
97 # ifdef HAVE_LIBINTL_H
99 # define _(msgid) gettext (msgid)
101 # define _(msgid) (msgid)
105 /* This version of `share__getopt' appears to the caller like standard Unix `getopt'
106 but it behaves differently for the user, since it allows the user
107 to intersperse the options with the other arguments.
109 As `share__getopt' works, it permutes the elements of ARGV so that,
110 when it is done, all the options precede everything else. Thus
111 all application programs are extended to handle flexible argument order.
113 Setting the environment variable POSIXLY_CORRECT disables permutation.
114 Then the behavior is completely standard.
116 GNU application programs can use a third alternative mode in which
117 they can distinguish the relative order of options and other arguments. */
119 #include "share/getopt.h"
120 /*[JEC] was:#include "getopt.h"*/
122 /* For communication from `share__getopt' to the caller.
123 When `share__getopt' finds an option that takes an argument,
124 the argument value is returned here.
125 Also, when `ordering' is RETURN_IN_ORDER,
126 each non-option ARGV-element is returned here. */
128 char *share__optarg = 0; /*[JEC] initialize to avoid being a 'Common' symbol */
130 /* Index in ARGV of the next element to be scanned.
131 This is used for communication to and from the caller
132 and for communication between successive calls to `share__getopt'.
134 On entry to `share__getopt', zero means this is the first call; initialize.
136 When `share__getopt' returns -1, this is the index of the first of the
137 non-option elements that the caller should itself scan.
139 Otherwise, `share__optind' communicates from one call to the next
140 how much of ARGV has been scanned so far. */
142 /* 1003.2 says this must be 1 before any call. */
143 int share__optind = 1;
145 /* Formerly, initialization of getopt depended on share__optind==0, which
146 causes problems with re-calling getopt as programs generally don't
149 static int share____getopt_initialized = 0;
151 /* The next char to be scanned in the option-element
152 in which the last option character we returned was found.
153 This allows us to pick up the scan where we left off.
155 If this is zero, or a null string, it means resume the scan
156 by advancing to the next ARGV-element. */
158 static char *nextchar;
160 /* Callers store zero here to inhibit the error message
161 for unrecognized options. */
163 int share__opterr = 1;
165 /* Set to an option character which was unrecognized.
166 This must be initialized on some systems to avoid linking in the
167 system's own getopt implementation. */
169 int share__optopt = '?';
171 /* Describe how to deal with options that follow non-option ARGV-elements.
173 If the caller did not specify anything,
174 the default is REQUIRE_ORDER if the environment variable
175 POSIXLY_CORRECT is defined, PERMUTE otherwise.
177 REQUIRE_ORDER means don't recognize them as options;
178 stop option processing when the first non-option is seen.
179 This is what Unix does.
180 This mode of operation is selected by either setting the environment
181 variable POSIXLY_CORRECT, or using `+' as the first character
182 of the list of option characters.
184 PERMUTE is the default. We permute the contents of ARGV as we scan,
185 so that eventually all the non-options are at the end. This allows options
186 to be given in any order, even with programs that were not written to
189 RETURN_IN_ORDER is an option available to programs that were written
190 to expect options and other ARGV-elements in any order and that care about
191 the ordering of the two. We describe each non-option ARGV-element
192 as if it were the argument of an option with character code 1.
193 Using `-' as the first character of the list of option characters
194 selects this mode of operation.
196 The special argument `--' forces an end of option-scanning regardless
197 of the value of `ordering'. In the case of RETURN_IN_ORDER, only
198 `--' can cause `share__getopt' to return -1 with `share__optind' != ARGC. */
202 REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER
205 /* Value of POSIXLY_CORRECT environment variable. */
206 static char *posixly_correct;
208 #ifdef __GNU_LIBRARY__
209 /* We want to avoid inclusion of string.h with non-GNU libraries
210 because there are many ways it can cause trouble.
211 On some systems, it contains special magic macros that don't work
214 # define my_index strchr
219 /* Avoid depending on library functions or files
220 whose names are inconsistent. */
223 extern char *getenv (const char * name);
227 my_index (const char *str, int chr)
238 /* If using GCC, we can safely declare strlen this way.
239 If not using GCC, it is ok not to declare it. */
241 /* Note that Motorola Delta 68k R3V7 comes with GCC but not stddef.h.
242 That was relevant to code that was here before. */
243 # if (!defined __STDC__ || !__STDC__) && !defined strlen
244 /* gcc with -traditional declares the built-in strlen to return int,
245 and has done so at least since version 2.4.5. -- rms. */
246 extern int strlen (const char *);
247 # endif /* not __STDC__ */
248 #endif /* __GNUC__ */
250 #endif /* not __GNU_LIBRARY__ */
252 /* Handle permutation of arguments. */
254 /* Describe the part of ARGV that contains non-options that have
255 been skipped. `first_nonopt' is the index in ARGV of the first of them;
256 `last_nonopt' is the index after the last of them. */
258 static int first_nonopt;
259 static int last_nonopt;
262 /* Bash 2.0 gives us an environment variable containing flags
263 indicating ARGV elements that should not be considered arguments. */
265 /* Defined in getopt_init.c */
266 extern char *__getopt_nonoption_flags;
268 static int nonoption_flags_max_len;
269 static int nonoption_flags_len;
271 static int original_argc;
272 static char *const *original_argv;
274 /* Make sure the environment variable bash 2.0 puts in the environment
275 is valid for the getopt call we must make sure that the ARGV passed
276 to getopt is that one passed to the process. */
278 __attribute__ ((unused))
279 store_args_and_env (int argc, char *const *argv)
281 /* XXX This is no good solution. We should rather copy the args so
282 that we can compare them later. But we must not use malloc(3). */
283 original_argc = argc;
284 original_argv = argv;
286 # ifdef text_set_element
287 text_set_element (__libc_subinit, store_args_and_env);
288 # endif /* text_set_element */
290 # define SWAP_FLAGS(ch1, ch2) \
291 if (nonoption_flags_len > 0) \
293 char __tmp = __getopt_nonoption_flags[ch1]; \
294 __getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2]; \
295 __getopt_nonoption_flags[ch2] = __tmp; \
298 # define SWAP_FLAGS(ch1, ch2)
301 /* Exchange two adjacent subsequences of ARGV.
302 One subsequence is elements [first_nonopt,last_nonopt)
303 which contains all the non-options that have been skipped so far.
304 The other is elements [last_nonopt,share__optind), which contains all
305 the options processed since those non-options were skipped.
307 `first_nonopt' and `last_nonopt' are relocated so that they describe
308 the new indices of the non-options in ARGV after they are moved. */
310 #if defined __STDC__ && __STDC__
311 static void exchange (char **);
318 int bottom = first_nonopt;
319 int middle = last_nonopt;
320 int top = share__optind;
323 /* Exchange the shorter segment with the far end of the longer segment.
324 That puts the shorter segment into the right place.
325 It leaves the longer segment in the right place overall,
326 but it consists of two parts that need to be swapped next. */
329 /* First make sure the handling of the `__getopt_nonoption_flags'
330 string can work normally. Our top argument must be in the range
332 if (nonoption_flags_len > 0 && top >= nonoption_flags_max_len)
334 /* We must extend the array. The user plays games with us and
335 presents new arguments. */
336 char *new_str = malloc (top + 1);
338 nonoption_flags_len = nonoption_flags_max_len = 0;
341 memset (__mempcpy (new_str, __getopt_nonoption_flags,
342 nonoption_flags_max_len),
343 '\0', top + 1 - nonoption_flags_max_len);
344 nonoption_flags_max_len = top + 1;
345 __getopt_nonoption_flags = new_str;
350 while (top > middle && middle > bottom)
352 if (top - middle > middle - bottom)
354 /* Bottom segment is the short one. */
355 int len = middle - bottom;
358 /* Swap it with the top part of the top segment. */
359 for (i = 0; i < len; i++)
361 tem = argv[bottom + i];
362 argv[bottom + i] = argv[top - (middle - bottom) + i];
363 argv[top - (middle - bottom) + i] = tem;
364 SWAP_FLAGS (bottom + i, top - (middle - bottom) + i);
366 /* Exclude the moved bottom segment from further swapping. */
371 /* Top segment is the short one. */
372 int len = top - middle;
375 /* Swap it with the bottom part of the bottom segment. */
376 for (i = 0; i < len; i++)
378 tem = argv[bottom + i];
379 argv[bottom + i] = argv[middle + i];
380 argv[middle + i] = tem;
381 SWAP_FLAGS (bottom + i, middle + i);
383 /* Exclude the moved top segment from further swapping. */
388 /* Update records for the slots the non-options now occupy. */
390 first_nonopt += (share__optind - last_nonopt);
391 last_nonopt = share__optind;
394 /* Initialize the internal data when the first call is made. */
396 #if defined __STDC__ && __STDC__
397 static const char *share___getopt_initialize (int, char *const *, const char *);
400 share___getopt_initialize (argc, argv, optstring)
403 const char *optstring;
405 /* Start processing options with ARGV-element 1 (since ARGV-element 0
406 is the program name); the sequence of previously skipped
407 non-option ARGV-elements is empty. */
409 first_nonopt = last_nonopt = share__optind;
413 posixly_correct = getenv ("POSIXLY_CORRECT");
415 /* Determine how to handle the ordering of options and nonoptions. */
417 if (optstring[0] == '-')
419 ordering = RETURN_IN_ORDER;
422 else if (optstring[0] == '+')
424 ordering = REQUIRE_ORDER;
427 else if (posixly_correct != NULL)
428 ordering = REQUIRE_ORDER;
433 if (posixly_correct == NULL
434 && argc == original_argc && argv == original_argv)
436 if (nonoption_flags_max_len == 0)
438 if (__getopt_nonoption_flags == NULL
439 || __getopt_nonoption_flags[0] == '\0')
440 nonoption_flags_max_len = -1;
443 const char *orig_str = __getopt_nonoption_flags;
444 int len = nonoption_flags_max_len = strlen (orig_str);
445 if (nonoption_flags_max_len < argc)
446 nonoption_flags_max_len = argc;
447 __getopt_nonoption_flags =
448 malloc (nonoption_flags_max_len);
449 if (__getopt_nonoption_flags == NULL)
450 nonoption_flags_max_len = -1;
452 memset (__mempcpy (__getopt_nonoption_flags, orig_str, len),
453 '\0', nonoption_flags_max_len - len);
456 nonoption_flags_len = nonoption_flags_max_len;
459 nonoption_flags_len = 0;
461 (void)argc, (void)argv;
467 /* Scan elements of ARGV (whose length is ARGC) for option characters
470 If an element of ARGV starts with '-', and is not exactly "-" or "--",
471 then it is an option element. The characters of this element
472 (aside from the initial '-') are option characters. If `share__getopt'
473 is called repeatedly, it returns successively each of the option characters
474 from each of the option elements.
476 If `share__getopt' finds another option character, it returns that character,
477 updating `share__optind' and `nextchar' so that the next call to `share__getopt' can
478 resume the scan with the following option character or ARGV-element.
480 If there are no more option characters, `share__getopt' returns -1.
481 Then `share__optind' is the index in ARGV of the first ARGV-element
482 that is not an option. (The ARGV-elements have been permuted
483 so that those that are not options now come last.)
485 OPTSTRING is a string containing the legitimate option characters.
486 If an option character is seen that is not listed in OPTSTRING,
487 return '?' after printing an error message. If you set `share__opterr' to
488 zero, the error message is suppressed but we still return '?'.
490 If a char in OPTSTRING is followed by a colon, that means it wants an arg,
491 so the following text in the same ARGV-element, or the text of the following
492 ARGV-element, is returned in `share__optarg'. Two colons mean an option that
493 wants an optional arg; if there is text in the current ARGV-element,
494 it is returned in `share__optarg', otherwise `share__optarg' is set to zero.
496 If OPTSTRING starts with `-' or `+', it requests different methods of
497 handling the non-option ARGV-elements.
498 See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above.
500 Long-named options begin with `--' instead of `-'.
501 Their names may be abbreviated as long as the abbreviation is unique
502 or is an exact match for some defined option. If they have an
503 argument, it follows the option name in the same ARGV-element, separated
504 from the option name by a `=', or else the in next ARGV-element.
505 When `share__getopt' finds a long-named option, it returns 0 if that option's
506 `flag' field is nonzero, the value of the option's `val' field
507 if the `flag' field is zero.
509 The elements of ARGV aren't really const, because we permute them.
510 But we pretend they're const in the prototype to be compatible
513 LONGOPTS is a vector of `struct share__option' terminated by an
514 element containing a name which is zero.
516 LONGIND returns the index in LONGOPT of the long-named option found.
517 It is only valid when a long-named option has been found by the most
520 If LONG_ONLY is nonzero, '-' as well as '--' can introduce
521 long-named options. */
524 share___getopt_internal (argc, argv, optstring, longopts, longind, long_only)
527 const char *optstring;
528 const struct share__option *longopts;
532 share__optarg = NULL;
534 if (share__optind == 0 || !share____getopt_initialized)
536 if (share__optind == 0)
537 share__optind = 1; /* Don't scan ARGV[0], the program name. */
538 optstring = share___getopt_initialize (argc, argv, optstring);
539 share____getopt_initialized = 1;
542 /* Test whether ARGV[share__optind] points to a non-option argument.
543 Either it does not have option syntax, or there is an environment flag
544 from the shell indicating it is not an option. The later information
545 is only used when the used in the GNU libc. */
547 # define NONOPTION_P (argv[share__optind][0] != '-' || argv[share__optind][1] == '\0' \
548 || (share__optind < nonoption_flags_len \
549 && __getopt_nonoption_flags[share__optind] == '1'))
551 # define NONOPTION_P (argv[share__optind][0] != '-' || argv[share__optind][1] == '\0')
554 if (nextchar == NULL || *nextchar == '\0')
556 /* Advance to the next ARGV-element. */
558 /* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been
559 moved back by the user (who may also have changed the arguments). */
560 if (last_nonopt > share__optind)
561 last_nonopt = share__optind;
562 if (first_nonopt > share__optind)
563 first_nonopt = share__optind;
565 if (ordering == PERMUTE)
567 /* If we have just processed some options following some non-options,
568 exchange them so that the options come first. */
570 if (first_nonopt != last_nonopt && last_nonopt != share__optind)
571 exchange ((char **) argv);
572 else if (last_nonopt != share__optind)
573 first_nonopt = share__optind;
575 /* Skip any additional non-options
576 and extend the range of non-options previously skipped. */
578 while (share__optind < argc && NONOPTION_P)
580 last_nonopt = share__optind;
583 /* The special ARGV-element `--' means premature end of options.
584 Skip it like a null option,
585 then exchange with previous non-options as if it were an option,
586 then skip everything else like a non-option. */
588 if (share__optind != argc && !strcmp (argv[share__optind], "--"))
592 if (first_nonopt != last_nonopt && last_nonopt != share__optind)
593 exchange ((char **) argv);
594 else if (first_nonopt == last_nonopt)
595 first_nonopt = share__optind;
598 share__optind = argc;
601 /* If we have done all the ARGV-elements, stop the scan
602 and back over any non-options that we skipped and permuted. */
604 if (share__optind == argc)
606 /* Set the next-arg-index to point at the non-options
607 that we previously skipped, so the caller will digest them. */
608 if (first_nonopt != last_nonopt)
609 share__optind = first_nonopt;
613 /* If we have come to a non-option and did not permute it,
614 either stop the scan or describe it to the caller and pass it by. */
618 if (ordering == REQUIRE_ORDER)
620 share__optarg = argv[share__optind++];
624 /* We have found another option-ARGV-element.
625 Skip the initial punctuation. */
627 nextchar = (argv[share__optind] + 1
628 + (longopts != NULL && argv[share__optind][1] == '-'));
631 /* Decode the current option-ARGV-element. */
633 /* Check whether the ARGV-element is a long option.
635 If long_only and the ARGV-element has the form "-f", where f is
636 a valid short option, don't consider it an abbreviated form of
637 a long option that starts with f. Otherwise there would be no
638 way to give the -f short option.
640 On the other hand, if there's a long option "fubar" and
641 the ARGV-element is "-fu", do consider that an abbreviation of
642 the long option, just like "--fu", and not "-f" with arg "u".
644 This distinction seems to be the most useful approach. */
647 && (argv[share__optind][1] == '-'
648 || (long_only && (argv[share__optind][2] || !my_index (optstring, argv[share__optind][1])))))
651 const struct share__option *p;
652 const struct share__option *pfound = NULL;
658 for (nameend = nextchar; *nameend && *nameend != '='; nameend++)
661 /* Test all long options for either exact match
662 or abbreviated matches. */
663 for (p = longopts, option_index = 0; p->name; p++, option_index++)
664 if (!strncmp (p->name, nextchar, nameend - nextchar))
666 if ((unsigned int) (nameend - nextchar)
667 == (unsigned int) strlen (p->name))
669 /* Exact match found. */
671 indfound = option_index;
675 else if (pfound == NULL)
677 /* First nonexact match found. */
679 indfound = option_index;
682 /* Second or later nonexact match found. */
689 fprintf (stderr, _("%s: option `%s' is ambiguous\n"),
690 argv[0], argv[share__optind]);
691 nextchar += strlen (nextchar);
699 option_index = indfound;
703 /* Don't test has_arg with >, because some C compilers don't
704 allow it to be used on enums. */
706 share__optarg = nameend + 1;
711 if (argv[share__optind - 1][1] == '-')
714 _("%s: option `--%s' doesn't allow an argument\n"),
715 argv[0], pfound->name);
717 /* +option or -option */
719 _("%s: option `%c%s' doesn't allow an argument\n"),
720 argv[0], argv[share__optind - 1][0], pfound->name);
723 nextchar += strlen (nextchar);
725 share__optopt = pfound->val;
729 else if (pfound->has_arg == 1)
731 if (share__optind < argc)
732 share__optarg = argv[share__optind++];
737 _("%s: option `%s' requires an argument\n"),
738 argv[0], argv[share__optind - 1]);
739 nextchar += strlen (nextchar);
740 share__optopt = pfound->val;
741 return optstring[0] == ':' ? ':' : '?';
744 nextchar += strlen (nextchar);
746 *longind = option_index;
749 *(pfound->flag) = pfound->val;
755 /* Can't find it as a long option. If this is not share__getopt_long_only,
756 or the option starts with '--' or is not a valid short
757 option, then it's an error.
758 Otherwise interpret it as a short option. */
759 if (!long_only || argv[share__optind][1] == '-'
760 || my_index (optstring, *nextchar) == NULL)
764 if (argv[share__optind][1] == '-')
766 fprintf (stderr, _("%s: unrecognized option `--%s'\n"),
769 /* +option or -option */
770 fprintf (stderr, _("%s: unrecognized option `%c%s'\n"),
771 argv[0], argv[share__optind][0], nextchar);
773 nextchar = (char *) "";
780 /* Look at and handle the next short option-character. */
783 char c = *nextchar++;
784 char *temp = my_index (optstring, c);
786 /* Increment `share__optind' when we start to process its last character. */
787 if (*nextchar == '\0')
790 if (temp == NULL || c == ':')
795 /* 1003.2 specifies the format of this message. */
796 fprintf (stderr, _("%s: illegal option -- %c\n"),
799 fprintf (stderr, _("%s: invalid option -- %c\n"),
805 /* Convenience. Treat POSIX -W foo same as long option --foo */
806 if (temp[0] == 'W' && temp[1] == ';')
809 const struct share__option *p;
810 const struct share__option *pfound = NULL;
816 /* This is an option that requires an argument. */
817 if (*nextchar != '\0')
819 share__optarg = nextchar;
820 /* If we end this ARGV-element by taking the rest as an arg,
821 we must advance to the next element now. */
824 else if (share__optind == argc)
828 /* 1003.2 specifies the format of this message. */
829 fprintf (stderr, _("%s: option requires an argument -- %c\n"),
833 if (optstring[0] == ':')
840 /* We already incremented `share__optind' once;
841 increment it again when taking next ARGV-elt as argument. */
842 share__optarg = argv[share__optind++];
844 /* share__optarg is now the argument, see if it's in the
845 table of longopts. */
847 for (nextchar = nameend = share__optarg; *nameend && *nameend != '='; nameend++)
850 /* Test all long options for either exact match
851 or abbreviated matches. */
852 for (p = longopts, option_index = 0; p->name; p++, option_index++)
853 if (!strncmp (p->name, nextchar, nameend - nextchar))
855 if ((unsigned int) (nameend - nextchar) == strlen (p->name))
857 /* Exact match found. */
859 indfound = option_index;
863 else if (pfound == NULL)
865 /* First nonexact match found. */
867 indfound = option_index;
870 /* Second or later nonexact match found. */
876 fprintf (stderr, _("%s: option `-W %s' is ambiguous\n"),
877 argv[0], argv[share__optind]);
878 nextchar += strlen (nextchar);
884 option_index = indfound;
887 /* Don't test has_arg with >, because some C compilers don't
888 allow it to be used on enums. */
890 share__optarg = nameend + 1;
894 fprintf (stderr, _("\
895 %s: option `-W %s' doesn't allow an argument\n"),
896 argv[0], pfound->name);
898 nextchar += strlen (nextchar);
902 else if (pfound->has_arg == 1)
904 if (share__optind < argc)
905 share__optarg = argv[share__optind++];
910 _("%s: option `%s' requires an argument\n"),
911 argv[0], argv[share__optind - 1]);
912 nextchar += strlen (nextchar);
913 return optstring[0] == ':' ? ':' : '?';
916 nextchar += strlen (nextchar);
918 *longind = option_index;
921 *(pfound->flag) = pfound->val;
927 return 'W'; /* Let the application handle it. */
933 /* This is an option that accepts an argument optionally. */
934 if (*nextchar != '\0')
936 share__optarg = nextchar;
940 share__optarg = NULL;
945 /* This is an option that requires an argument. */
946 if (*nextchar != '\0')
948 share__optarg = nextchar;
949 /* If we end this ARGV-element by taking the rest as an arg,
950 we must advance to the next element now. */
953 else if (share__optind == argc)
957 /* 1003.2 specifies the format of this message. */
959 _("%s: option requires an argument -- %c\n"),
963 if (optstring[0] == ':')
969 /* We already incremented `share__optind' once;
970 increment it again when taking next ARGV-elt as argument. */
971 share__optarg = argv[share__optind++];
980 share__getopt (argc, argv, optstring)
983 const char *optstring;
985 return share___getopt_internal (argc, argv, optstring,
986 (const struct share__option *) 0,
991 #endif /* Not ELIDE_CODE. */
995 /* Compile with -DTEST to make an executable for use in testing
996 the above definition of `share__getopt'. */
1004 int digit_optind = 0;
1008 int this_option_optind = share__optind ? share__optind : 1;
1010 c = share__getopt (argc, argv, "abc:d:0123456789");
1026 if (digit_optind != 0 && digit_optind != this_option_optind)
1027 printf ("digits occur in two different argv-elements.\n");
1028 digit_optind = this_option_optind;
1029 printf ("option %c\n", c);
1033 printf ("option a\n");
1037 printf ("option b\n");
1041 printf ("option c with value `%s'\n", share__optarg);
1048 printf ("?? getopt returned character code 0%o ??\n", c);
1052 if (share__optind < argc)
1054 printf ("non-option ARGV-elements: ");
1055 while (share__optind < argc)
1056 printf ("%s ", argv[share__optind++]);