Lasse Collin | 5d018dc | 2007-12-09 00:42:33 +0200 | [diff] [blame] | 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 2, or (at your option) |
| 9 | 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 along |
| 17 | with this program; if not, write to the Free Software Foundation, |
| 18 | Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ |
| 19 | |
| 20 | #ifndef _GETOPT_INT_H |
| 21 | #define _GETOPT_INT_H 1 |
| 22 | |
| 23 | extern int _getopt_internal (int ___argc, char **___argv, |
| 24 | const char *__shortopts, |
| 25 | const struct option *__longopts, int *__longind, |
| 26 | int __long_only, int __posixly_correct); |
| 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, or by calling getopt. |
| 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 | or getopt was called. */ |
| 92 | int __posixly_correct; |
| 93 | |
| 94 | |
| 95 | /* Handle permutation of arguments. */ |
| 96 | |
| 97 | /* Describe the part of ARGV that contains non-options that have |
| 98 | been skipped. `first_nonopt' is the index in ARGV of the first |
| 99 | of them; `last_nonopt' is the index after the last of them. */ |
| 100 | |
| 101 | int __first_nonopt; |
| 102 | int __last_nonopt; |
| 103 | |
| 104 | #if defined _LIBC && defined USE_NONOPTION_FLAGS |
| 105 | int __nonoption_flags_max_len; |
| 106 | int __nonoption_flags_len; |
| 107 | # endif |
| 108 | }; |
| 109 | |
| 110 | /* The initializer is necessary to set OPTIND and OPTERR to their |
| 111 | default values and to clear the initialization flag. */ |
| 112 | #define _GETOPT_DATA_INITIALIZER { 1, 1 } |
| 113 | |
| 114 | extern int _getopt_internal_r (int ___argc, char **___argv, |
| 115 | const char *__shortopts, |
| 116 | const struct option *__longopts, int *__longind, |
| 117 | int __long_only, int __posixly_correct, |
| 118 | struct _getopt_data *__data); |
| 119 | |
| 120 | extern int _getopt_long_r (int ___argc, char **___argv, |
| 121 | const char *__shortopts, |
| 122 | const struct option *__longopts, int *__longind, |
| 123 | struct _getopt_data *__data); |
| 124 | |
| 125 | extern int _getopt_long_only_r (int ___argc, char **___argv, |
| 126 | const char *__shortopts, |
| 127 | const struct option *__longopts, |
| 128 | int *__longind, |
| 129 | struct _getopt_data *__data); |
| 130 | |
| 131 | #endif /* getopt_int.h */ |