1/* Internal declarations for getopt. 2 Copyright (C) 1989-1994,1996-1999,2001,2003,2004 3 Free Software Foundation, Inc. 4 This file is part of the GNU C Library. 5 6 This program is free software: you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 3 of the License, or 9 (at your option) any later version. 10 11 This program 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 14 GNU General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 18 19#ifndef _GETOPT_INT_H 20#define _GETOPT_INT_H 1 21 22extern int _getopt_internal (int ___argc, char **___argv, 23 const char *__shortopts, 24 const struct option *__longopts, int *__longind, 25 int __long_only, int __posixly_correct); 26 27 28/* Reentrant versions which can handle parsing multiple argument 29 vectors at the same time. */ 30 31/* Data type for reentrant functions. */ 32struct _getopt_data 33{ 34 /* These have exactly the same meaning as the corresponding global 35 variables, except that they are used for the reentrant 36 versions of getopt. */ 37 int optind; 38 int opterr; 39 int optopt; 40 char *optarg; 41 42 /* Internal members. */ 43 44 /* True if the internal members have been initialized. */ 45 int __initialized; 46 47 /* The next char to be scanned in the option-element 48 in which the last option character we returned was found. 49 This allows us to pick up the scan where we left off. 50 51 If this is zero, or a null string, it means resume the scan 52 by advancing to the next ARGV-element. */ 53 char *__nextchar; 54 55 /* Describe how to deal with options that follow non-option ARGV-elements. 56 57 If the caller did not specify anything, 58 the default is REQUIRE_ORDER if the environment variable 59 POSIXLY_CORRECT is defined, PERMUTE otherwise. 60 61 REQUIRE_ORDER means don't recognize them as options; 62 stop option processing when the first non-option is seen. 63 This is what Unix does. 64 This mode of operation is selected by either setting the environment 65 variable POSIXLY_CORRECT, or using `+' as the first character 66 of the list of option characters, or by calling getopt. 67 68 PERMUTE is the default. We permute the contents of ARGV as we 69 scan, so that eventually all the non-options are at the end. 70 This allows options to be given in any order, even with programs 71 that were not written to expect this. 72 73 RETURN_IN_ORDER is an option available to programs that were 74 written to expect options and other ARGV-elements in any order 75 and that care about the ordering of the two. We describe each 76 non-option ARGV-element as if it were the argument of an option 77 with character code 1. Using `-' as the first character of the 78 list of option characters selects this mode of operation. 79 80 The special argument `--' forces an end of option-scanning regardless 81 of the value of `ordering'. In the case of RETURN_IN_ORDER, only 82 `--' can cause `getopt' to return -1 with `optind' != ARGC. */ 83 84 enum 85 { 86 REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER 87 } __ordering; 88 89 /* If the POSIXLY_CORRECT environment variable is set 90 or getopt was called. */ 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 113extern int _getopt_internal_r (int ___argc, char **___argv, 114 const char *__shortopts, 115 const struct option *__longopts, int *__longind, 116 int __long_only, int __posixly_correct, 117 struct _getopt_data *__data); 118 119extern int _getopt_long_r (int ___argc, char **___argv, 120 const char *__shortopts, 121 const struct option *__longopts, int *__longind, 122 struct _getopt_data *__data); 123 124extern int _getopt_long_only_r (int ___argc, char **___argv, 125 const char *__shortopts, 126 const struct option *__longopts, 127 int *__longind, 128 struct _getopt_data *__data); 129 130#endif /* getopt_int.h */ 131