~vcs-imports/gawk/master

33 by Arnold D. Robbins
Move to gawk 3.1.5.
1
/* Internal declarations for getopt.
36 by Arnold D. Robbins
Move to 3.1.8.
2
   Copyright (C) 1989-1994,1996-1999,2001,2003,2004,2009
33 by Arnold D. Robbins
Move to gawk 3.1.5.
3
   Free Software Foundation, Inc.
4
   This file is part of the GNU C Library.
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
277.1.117 by Arnold D. Robbins
Sync from GLIBC.
17
   License along with the GNU C Library; if not, see
18
   <http://www.gnu.org/licenses/>.  */
33 by Arnold D. Robbins
Move to gawk 3.1.5.
19
20
#ifndef _GETOPT_INT_H
21
#define _GETOPT_INT_H	1
22
23
extern int _getopt_internal (int ___argc, char *const *___argv,
24
			     const char *__shortopts,
25
		             const struct option *__longopts, int *__longind,
36 by Arnold D. Robbins
Move to 3.1.8.
26
			     int __long_only, int posixly_correct);
33 by Arnold D. Robbins
Move to gawk 3.1.5.
27
28

29
/* Reentrant versions which can handle parsing multiple argument
30
   vectors at the same time.  */
31
32
/* Data type for reentrant functions.  */
33
struct _getopt_data
34
{
35
  /* These have exactly the same meaning as the corresponding global
36
     variables, except that they are used for the reentrant
37
     versions of getopt.  */
38
  int optind;
39
  int opterr;
40
  int optopt;
41
  char *optarg;
42
43
  /* Internal members.  */
44
45
  /* True if the internal members have been initialized.  */
46
  int __initialized;
47
48
  /* The next char to be scanned in the option-element
49
     in which the last option character we returned was found.
50
     This allows us to pick up the scan where we left off.
51
52
     If this is zero, or a null string, it means resume the scan
53
     by advancing to the next ARGV-element.  */
54
  char *__nextchar;
55
56
  /* Describe how to deal with options that follow non-option ARGV-elements.
57
58
     If the caller did not specify anything,
59
     the default is REQUIRE_ORDER if the environment variable
60
     POSIXLY_CORRECT is defined, PERMUTE otherwise.
61
62
     REQUIRE_ORDER means don't recognize them as options;
63
     stop option processing when the first non-option is seen.
64
     This is what Unix does.
65
     This mode of operation is selected by either setting the environment
66
     variable POSIXLY_CORRECT, or using `+' as the first character
67
     of the list of option characters.
68
69
     PERMUTE is the default.  We permute the contents of ARGV as we
70
     scan, so that eventually all the non-options are at the end.
71
     This allows options to be given in any order, even with programs
72
     that were not written to expect this.
73
74
     RETURN_IN_ORDER is an option available to programs that were
75
     written to expect options and other ARGV-elements in any order
76
     and that care about the ordering of the two.  We describe each
77
     non-option ARGV-element as if it were the argument of an option
78
     with character code 1.  Using `-' as the first character of the
79
     list of option characters selects this mode of operation.
80
81
     The special argument `--' forces an end of option-scanning regardless
82
     of the value of `ordering'.  In the case of RETURN_IN_ORDER, only
83
     `--' can cause `getopt' to return -1 with `optind' != ARGC.  */
84
85
  enum
86
    {
87
      REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER
88
    } __ordering;
89
90
  /* If the POSIXLY_CORRECT environment variable is set.  */
91
  int __posixly_correct;
92
93
94
  /* Handle permutation of arguments.  */
95
96
  /* Describe the part of ARGV that contains non-options that have
97
     been skipped.  `first_nonopt' is the index in ARGV of the first
98
     of them; `last_nonopt' is the index after the last of them.  */
99
100
  int __first_nonopt;
101
  int __last_nonopt;
102
103
#if defined _LIBC && defined USE_NONOPTION_FLAGS
104
  int __nonoption_flags_max_len;
105
  int __nonoption_flags_len;
106
# endif
107
};
108
109
/* The initializer is necessary to set OPTIND and OPTERR to their
110
   default values and to clear the initialization flag.  */
111
#define _GETOPT_DATA_INITIALIZER	{ 1, 1 }
112
113
extern int _getopt_internal_r (int ___argc, char *const *___argv,
114
			       const char *__shortopts,
115
			       const struct option *__longopts, int *__longind,
36 by Arnold D. Robbins
Move to 3.1.8.
116
			       int __long_only, struct _getopt_data *__data,
117
			       int posixly_correct);
33 by Arnold D. Robbins
Move to gawk 3.1.5.
118
119
extern int _getopt_long_r (int ___argc, char *const *___argv,
120
			   const char *__shortopts,
121
			   const struct option *__longopts, int *__longind,
122
			   struct _getopt_data *__data);
123
124
extern int _getopt_long_only_r (int ___argc, char *const *___argv,
125
				const char *__shortopts,
126
				const struct option *__longopts,
127
				int *__longind,
128
				struct _getopt_data *__data);
129
130
#endif /* getopt_int.h */