1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
|
/* Declarations for getopt.
Copyright 2008, 2010 Karl Berry.
Copyright 1989,90,91,92,93,94,96,97,2000,05 Free Software Foundation, Inc.
The original version of this file was part of the GNU C Library.
Its master source is NOT part of the C library, however.
The master source lives in libc.
This version has been modified for use with libkpathsea.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this library; if not, see <http://www.gnu.org/licenses/>. */
#ifndef _GETOPT_H
#define _GETOPT_H 1
#if defined (KPSE_DLL) && (defined (WIN32) || defined (__CYGWIN__))
#ifdef MAKE_KPSE_DLL
#define KPSEDLL __declspec(dllexport)
#else /* ! MAKE_KPSE_DLL */
#define KPSEDLL __declspec(dllimport)
#endif
#else /* ! (KPSE_DLL && (WIN32 || __CYGWIN__)) */
#define KPSEDLL
#endif
#ifdef __cplusplus
extern "C" {
#endif
/* For communication from `getopt' to the caller.
When `getopt' finds an option that takes an argument,
the argument value is returned here.
Also, when `ordering' is RETURN_IN_ORDER,
each non-option ARGV-element is returned here. */
extern KPSEDLL char *optarg;
/* Index in ARGV of the next element to be scanned.
This is used for communication to and from the caller
and for communication between successive calls to `getopt'.
On entry to `getopt', zero means this is the first call; initialize.
When `getopt' returns -1, this is the index of the first of the
non-option elements that the caller should itself scan.
Otherwise, `optind' communicates from one call to the next
how much of ARGV has been scanned so far. */
extern KPSEDLL int optind;
/* Callers store zero here to inhibit the error message `getopt' prints
for unrecognized options. */
extern KPSEDLL int opterr;
/* Set to an option character which was unrecognized. */
extern KPSEDLL int optopt;
/* Describe the long-named options requested by the application.
The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector
of `struct option' terminated by an element containing a name which is
zero.
The field `has_arg' is:
no_argument (or 0) if the option does not take an argument,
required_argument (or 1) if the option requires an argument,
optional_argument (or 2) if the option takes an optional argument.
If the field `flag' is not NULL, it points to a variable that is set
to the value given in the field `val' when the option is found, but
left unchanged if the option is not found.
To have a long-named option do something other than set an `int' to
a compiled-in constant, such as set a value from `optarg', set the
option's `flag' field to zero and its `val' field to a nonzero
value (the equivalent single-letter option character, if there is
one). For long options that have a zero `flag' field, `getopt'
returns the contents of the `val' field. */
struct option
{
const char *name;
/* has_arg can't be an enum because some compilers complain about
type mismatches in all the code that assumes it is an int. */
int has_arg;
int *flag;
int val;
};
/* Names for the values of the `has_arg' field of `struct option'. */
#define no_argument 0
#define required_argument 1
#define optional_argument 2
#if defined (__STDC__) && __STDC__
#ifdef __GNU_LIBRARY__
/* Many other libraries have conflicting prototypes for getopt, with
differences in the consts, in stdlib.h. To avoid compilation
errors, only prototype getopt for the GNU C library. */
extern KPSEDLL int getopt (int argc, char *const *argv, const char *shortopts);
#else /* not __GNU_LIBRARY__ */
#ifndef __cplusplus
extern KPSEDLL int getopt ();
#endif /* not __cplusplus */
#endif /* __GNU_LIBRARY__ */
extern KPSEDLL int getopt_long (int argc, char *const *argv, const char *shortopts,
const struct option *longopts, int *longind);
extern KPSEDLL int getopt_long_only (int argc, char *const *argv,
const char *shortopts,
const struct option *longopts, int *longind);
/* Internal only. Users should not call this directly. */
extern int _getopt_internal (int argc, char *const *argv,
const char *shortopts,
const struct option *longopts, int *longind,
int long_only);
#else /* not __STDC__ */
extern KPSEDLL int getopt ();
extern KPSEDLL int getopt_long ();
extern KPSEDLL int getopt_long_only ();
extern int _getopt_internal ();
#endif /* __STDC__ */
#ifdef __cplusplus
}
#endif
#endif /* _GETOPT_H */
|
