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getopt_int.h
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1 /* Internal declarations for getopt.
2  Copyright (C) 1989-2019 Free Software Foundation, Inc.
3  This file is part of the GNU C Library and is also part of gnulib.
4  Patches to this file should be submitted to both projects.
5 
6  The GNU C Library is free software; you can redistribute it and/or
7  modify it under the terms of the GNU Lesser General Public
8  License as published by the Free Software Foundation; either
9  version 2.1 of the License, or (at your option) any later version.
10 
11  The GNU C Library is distributed in the hope that it will be useful,
12  but WITHOUT ANY WARRANTY; without even the implied warranty of
13  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  Lesser General Public License for more details.
15 
16  You should have received a copy of the GNU Lesser General Public
17  License along with the GNU C Library; if not, see
18  <http://www.gnu.org/licenses/>. */
19 
20 #ifndef _GETOPT_INT_H
21 #define _GETOPT_INT_H 1
22 
23 #include "getopt.h"
24 
25 extern int _getopt_internal (int ___argc, char **___argv,
26  const char *__shortopts,
27  const struct option *__longopts, int *__longind,
28  int __long_only, int __posixly_correct);
29 
30 
31 /* Reentrant versions which can handle parsing multiple argument
32  vectors at the same time. */
33 
34 /* Describe how to deal with options that follow non-option ARGV-elements.
35 
36  REQUIRE_ORDER means don't recognize them as options; stop option
37  processing when the first non-option is seen. This is what POSIX
38  specifies should happen.
39 
40  PERMUTE means permute the contents of ARGV as we scan, so that
41  eventually all the non-options are at the end. This allows options
42  to be given in any order, even with programs that were not written
43  to expect this.
44 
45  RETURN_IN_ORDER is an option available to programs that were
46  written to expect options and other ARGV-elements in any order
47  and that care about the ordering of the two. We describe each
48  non-option ARGV-element as if it were the argument of an option
49  with character code 1.
50 
51  The special argument '--' forces an end of option-scanning regardless
52  of the value of 'ordering'. In the case of RETURN_IN_ORDER, only
53  '--' can cause 'getopt' to return -1 with 'optind' != ARGC. */
54 
55 enum __ord
56  {
58  };
59 
60 /* Data type for reentrant functions. */
62 {
63  /* These have exactly the same meaning as the corresponding global
64  variables, except that they are used for the reentrant
65  versions of getopt. */
66  int optind;
67  int opterr;
68  int optopt;
69  char *optarg;
70 
71  /* Internal members. */
72 
73  /* True if the internal members have been initialized. */
75 
76  /* The next char to be scanned in the option-element
77  in which the last option character we returned was found.
78  This allows us to pick up the scan where we left off.
79 
80  If this is zero, or a null string, it means resume the scan
81  by advancing to the next ARGV-element. */
82  char *__nextchar;
83 
84  /* See __ord above. */
86 
87  /* Handle permutation of arguments. */
88 
89  /* Describe the part of ARGV that contains non-options that have
90  been skipped. 'first_nonopt' is the index in ARGV of the first
91  of them; 'last_nonopt' is the index after the last of them. */
92 
95 };
96 
97 /* The initializer is necessary to set OPTIND and OPTERR to their
98  default values and to clear the initialization flag. */
99 #define _GETOPT_DATA_INITIALIZER { 1, 1 }
100 
101 extern int _getopt_internal_r (int ___argc, char **___argv,
102  const char *__shortopts,
103  const struct option *__longopts, int *__longind,
104  int __long_only, struct _getopt_data *__data,
105  int __posixly_correct);
106 
107 extern int _getopt_long_r (int ___argc, char **___argv,
108  const char *__shortopts,
109  const struct option *__longopts, int *__longind,
110  struct _getopt_data *__data);
111 
112 extern int _getopt_long_only_r (int ___argc, char **___argv,
113  const char *__shortopts,
114  const struct option *__longopts,
115  int *__longind,
116  struct _getopt_data *__data);
117 
118 #endif /* getopt_int.h */
char * __nextchar
Definition: getopt_int.h:82
int _getopt_internal(int ___argc, char **___argv, const char *__shortopts, const struct option *__longopts, int *__longind, int __long_only, int __posixly_correct)
Definition: getopt.c:700
char * optarg
Definition: getopt_int.h:69
int __initialized
Definition: getopt_int.h:74
int _getopt_internal_r(int ___argc, char **___argv, const char *__shortopts, const struct option *__longopts, int *__longind, int __long_only, struct _getopt_data *__data, int __posixly_correct)
Definition: getopt.c:468
int _getopt_long_only_r(int ___argc, char **___argv, const char *__shortopts, const struct option *__longopts, int *__longind, struct _getopt_data *__data)
Definition: getopt1.c:55
int __first_nonopt
Definition: getopt_int.h:93
Definition: getopt.h:108
int _getopt_long_r(int ___argc, char **___argv, const char *__shortopts, const struct option *__longopts, int *__longind, struct _getopt_data *__data)
Definition: getopt1.c:32
int __last_nonopt
Definition: getopt_int.h:94
enum __ord __ordering
Definition: getopt_int.h:85
__ord
Definition: getopt_int.h:55