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| author | Paul Eggert | 2005-07-26 21:46:50 +0000 |
|---|---|---|
| committer | Paul Eggert | 2005-07-26 21:46:50 +0000 |
| commit | 0488749139fc79dce965a1fa11b1e3fedc7ba616 (patch) | |
| tree | c217d6356fbe20df9f17e797dd814b3722480b7a /lib-src | |
| parent | 52dbaac8bab7858f3bd7e204431e12154309cde8 (diff) | |
| download | emacs-0488749139fc79dce965a1fa11b1e3fedc7ba616.tar.gz emacs-0488749139fc79dce965a1fa11b1e3fedc7ba616.zip | |
Merge gnulib getopt implementation into Emacs.
Diffstat (limited to 'lib-src')
| -rw-r--r-- | lib-src/getopt.h | 183 |
1 files changed, 0 insertions, 183 deletions
diff --git a/lib-src/getopt.h b/lib-src/getopt.h deleted file mode 100644 index 953a7d15252..00000000000 --- a/lib-src/getopt.h +++ /dev/null | |||
| @@ -1,183 +0,0 @@ | |||
| 1 | /* Declarations for getopt. | ||
| 2 | Copyright (C) 1989-1994, 1996-1999, 2001 Free Software Foundation, Inc. | ||
| 3 | This file is part of the GNU C Library. | ||
| 4 | |||
| 5 | This program is free software; you can redistribute it and/or modify | ||
| 6 | it under the terms of the GNU General Public License as published by | ||
| 7 | the Free Software Foundation; either version 2, or (at your option) | ||
| 8 | any later version. | ||
| 9 | |||
| 10 | This program is distributed in the hope that it will be useful, | ||
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 13 | GNU General Public License for more details. | ||
| 14 | |||
| 15 | You should have received a copy of the GNU General Public License along | ||
| 16 | with this program; if not, write to the Free Software Foundation, | ||
| 17 | Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ | ||
| 18 | |||
| 19 | #ifndef _GETOPT_H | ||
| 20 | |||
| 21 | #ifndef __need_getopt | ||
| 22 | # define _GETOPT_H 1 | ||
| 23 | #endif | ||
| 24 | |||
| 25 | /* If __GNU_LIBRARY__ is not already defined, either we are being used | ||
| 26 | standalone, or this is the first header included in the source file. | ||
| 27 | If we are being used with glibc, we need to include <features.h>, but | ||
| 28 | that does not exist if we are standalone. So: if __GNU_LIBRARY__ is | ||
| 29 | not defined, include <ctype.h>, which will pull in <features.h> for us | ||
| 30 | if it's from glibc. (Why ctype.h? It's guaranteed to exist and it | ||
| 31 | doesn't flood the namespace with stuff the way some other headers do.) */ | ||
| 32 | #if !defined __GNU_LIBRARY__ | ||
| 33 | # include <ctype.h> | ||
| 34 | #endif | ||
| 35 | |||
| 36 | #ifdef __cplusplus | ||
| 37 | extern "C" { | ||
| 38 | #endif | ||
| 39 | |||
| 40 | /* For communication from `getopt' to the caller. | ||
| 41 | When `getopt' finds an option that takes an argument, | ||
| 42 | the argument value is returned here. | ||
| 43 | Also, when `ordering' is RETURN_IN_ORDER, | ||
| 44 | each non-option ARGV-element is returned here. */ | ||
| 45 | |||
| 46 | extern char *optarg; | ||
| 47 | |||
| 48 | /* Index in ARGV of the next element to be scanned. | ||
| 49 | This is used for communication to and from the caller | ||
| 50 | and for communication between successive calls to `getopt'. | ||
| 51 | |||
| 52 | On entry to `getopt', zero means this is the first call; initialize. | ||
| 53 | |||
| 54 | When `getopt' returns -1, this is the index of the first of the | ||
| 55 | non-option elements that the caller should itself scan. | ||
| 56 | |||
| 57 | Otherwise, `optind' communicates from one call to the next | ||
| 58 | how much of ARGV has been scanned so far. */ | ||
| 59 | |||
| 60 | extern int optind; | ||
| 61 | |||
| 62 | /* Callers store zero here to inhibit the error message `getopt' prints | ||
| 63 | for unrecognized options. */ | ||
| 64 | |||
| 65 | extern int opterr; | ||
| 66 | |||
| 67 | /* Set to an option character which was unrecognized. */ | ||
| 68 | |||
| 69 | extern int optopt; | ||
| 70 | |||
| 71 | #ifndef __need_getopt | ||
| 72 | /* Describe the long-named options requested by the application. | ||
| 73 | The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector | ||
| 74 | of `struct option' terminated by an element containing a name which is | ||
| 75 | zero. | ||
| 76 | |||
| 77 | The field `has_arg' is: | ||
| 78 | no_argument (or 0) if the option does not take an argument, | ||
| 79 | required_argument (or 1) if the option requires an argument, | ||
| 80 | optional_argument (or 2) if the option takes an optional argument. | ||
| 81 | |||
| 82 | If the field `flag' is not NULL, it points to a variable that is set | ||
| 83 | to the value given in the field `val' when the option is found, but | ||
| 84 | left unchanged if the option is not found. | ||
| 85 | |||
| 86 | To have a long-named option do something other than set an `int' to | ||
| 87 | a compiled-in constant, such as set a value from `optarg', set the | ||
| 88 | option's `flag' field to zero and its `val' field to a nonzero | ||
| 89 | value (the equivalent single-letter option character, if there is | ||
| 90 | one). For long options that have a zero `flag' field, `getopt' | ||
| 91 | returns the contents of the `val' field. */ | ||
| 92 | |||
| 93 | struct option | ||
| 94 | { | ||
| 95 | # if (defined __STDC__ && __STDC__) || defined __cplusplus | ||
| 96 | const char *name; | ||
| 97 | # else | ||
| 98 | char *name; | ||
| 99 | # endif | ||
| 100 | /* has_arg can't be an enum because some compilers complain about | ||
| 101 | type mismatches in all the code that assumes it is an int. */ | ||
| 102 | int has_arg; | ||
| 103 | int *flag; | ||
| 104 | int val; | ||
| 105 | }; | ||
| 106 | |||
| 107 | /* Names for the values of the `has_arg' field of `struct option'. */ | ||
| 108 | |||
| 109 | # define no_argument 0 | ||
| 110 | # define required_argument 1 | ||
| 111 | # define optional_argument 2 | ||
| 112 | #endif /* need getopt */ | ||
| 113 | |||
| 114 | |||
| 115 | /* Get definitions and prototypes for functions to process the | ||
| 116 | arguments in ARGV (ARGC of them, minus the program name) for | ||
| 117 | options given in OPTS. | ||
| 118 | |||
| 119 | Return the option character from OPTS just read. Return -1 when | ||
| 120 | there are no more options. For unrecognized options, or options | ||
| 121 | missing arguments, `optopt' is set to the option letter, and '?' is | ||
| 122 | returned. | ||
| 123 | |||
| 124 | The OPTS string is a list of characters which are recognized option | ||
| 125 | letters, optionally followed by colons, specifying that that letter | ||
| 126 | takes an argument, to be placed in `optarg'. | ||
| 127 | |||
| 128 | If a letter in OPTS is followed by two colons, its argument is | ||
| 129 | optional. This behavior is specific to the GNU `getopt'. | ||
| 130 | |||
| 131 | The argument `--' causes premature termination of argument | ||
| 132 | scanning, explicitly telling `getopt' that there are no more | ||
| 133 | options. | ||
| 134 | |||
| 135 | If OPTS begins with `--', then non-option arguments are treated as | ||
| 136 | arguments to the option '\0'. This behavior is specific to the GNU | ||
| 137 | `getopt'. */ | ||
| 138 | |||
| 139 | #if (defined __STDC__ && __STDC__) || defined __cplusplus | ||
| 140 | # ifdef __GNU_LIBRARY__ | ||
| 141 | /* Many other libraries have conflicting prototypes for getopt, with | ||
| 142 | differences in the consts, in stdlib.h. To avoid compilation | ||
| 143 | errors, only prototype getopt for the GNU C library. */ | ||
| 144 | extern int getopt (int ___argc, char *const *___argv, const char *__shortopts); | ||
| 145 | # else /* not __GNU_LIBRARY__ */ | ||
| 146 | extern int getopt (); | ||
| 147 | # endif /* __GNU_LIBRARY__ */ | ||
| 148 | |||
| 149 | # ifndef __need_getopt | ||
| 150 | extern int getopt_long (int ___argc, char *const *___argv, | ||
| 151 | const char *__shortopts, | ||
| 152 | const struct option *__longopts, int *__longind); | ||
| 153 | extern int getopt_long_only (int ___argc, char *const *___argv, | ||
| 154 | const char *__shortopts, | ||
| 155 | const struct option *__longopts, int *__longind); | ||
| 156 | |||
| 157 | /* Internal only. Users should not call this directly. */ | ||
| 158 | extern int _getopt_internal (int ___argc, char *const *___argv, | ||
| 159 | const char *__shortopts, | ||
| 160 | const struct option *__longopts, int *__longind, | ||
| 161 | int __long_only); | ||
| 162 | # endif | ||
| 163 | #else /* not __STDC__ */ | ||
| 164 | extern int getopt (); | ||
| 165 | # ifndef __need_getopt | ||
| 166 | extern int getopt_long (); | ||
| 167 | extern int getopt_long_only (); | ||
| 168 | |||
| 169 | extern int _getopt_internal (); | ||
| 170 | # endif | ||
| 171 | #endif /* __STDC__ */ | ||
| 172 | |||
| 173 | #ifdef __cplusplus | ||
| 174 | } | ||
| 175 | #endif | ||
| 176 | |||
| 177 | /* Make sure we later can get all the definitions and declarations. */ | ||
| 178 | #undef __need_getopt | ||
| 179 | |||
| 180 | #endif /* getopt.h */ | ||
| 181 | |||
| 182 | /* arch-tag: 9adb7828-e6a6-40cd-8512-0cdf1f20ddd4 | ||
| 183 | (do not change this comment) */ | ||