Guido van Rossum | 871b805 | 1994-04-28 12:33:58 +0000 | [diff] [blame] | 1 | /*---------------------------------------------------------------------------* |
| 2 | * <RCS keywords> |
| 3 | * |
| 4 | * C++ Library |
| 5 | * |
| 6 | * Copyright 1992-1994, David Gottner |
| 7 | * |
| 8 | * All Rights Reserved |
| 9 | * |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 10 | * Permission to use, copy, modify, and distribute this software and its |
| 11 | * documentation for any purpose and without fee is hereby granted, |
Guido van Rossum | 871b805 | 1994-04-28 12:33:58 +0000 | [diff] [blame] | 12 | * provided that the above copyright notice, this permission notice and |
| 13 | * the following disclaimer notice appear unmodified in all copies. |
| 14 | * |
| 15 | * I DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL |
| 16 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL I |
| 17 | * BE LIABLE FOR ANY SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY |
| 18 | * DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA, OR PROFITS, WHETHER |
| 19 | * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT |
| 20 | * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 21 | * |
| 22 | * Nevertheless, I would like to know about bugs in this library or |
| 23 | * suggestions for improvment. Send bug reports and feedback to |
| 24 | * davegottner@delphi.com. |
| 25 | *---------------------------------------------------------------------------*/ |
Guido van Rossum | 2508ade | 1994-04-14 14:08:22 +0000 | [diff] [blame] | 26 | |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 27 | /* Modified to support --help and --version, as well as /? on Windows |
| 28 | * by Georg Brandl. */ |
| 29 | |
Martin v. Löwis | 790465f | 2008-04-05 20:41:37 +0000 | [diff] [blame] | 30 | #include <Python.h> |
Guido van Rossum | 2508ade | 1994-04-14 14:08:22 +0000 | [diff] [blame] | 31 | #include <stdio.h> |
| 32 | #include <string.h> |
Martin v. Löwis | 790465f | 2008-04-05 20:41:37 +0000 | [diff] [blame] | 33 | #include <wchar.h> |
Victor Stinner | 27e2d1f | 2018-11-01 00:52:28 +0100 | [diff] [blame] | 34 | #include "pycore_getopt.h" |
Guido van Rossum | 2508ade | 1994-04-14 14:08:22 +0000 | [diff] [blame] | 35 | |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 36 | #ifdef __cplusplus |
| 37 | extern "C" { |
| 38 | #endif |
| 39 | |
Thomas Wouters | 2cffc7d | 2000-11-03 08:18:37 +0000 | [diff] [blame] | 40 | int _PyOS_opterr = 1; /* generate error messages */ |
| 41 | int _PyOS_optind = 1; /* index into argv array */ |
Martin v. Löwis | 790465f | 2008-04-05 20:41:37 +0000 | [diff] [blame] | 42 | wchar_t *_PyOS_optarg = NULL; /* optional argument */ |
Guido van Rossum | 2508ade | 1994-04-14 14:08:22 +0000 | [diff] [blame] | 43 | |
Antoine Pitrou | 86838b0 | 2012-02-21 19:03:47 +0100 | [diff] [blame] | 44 | static wchar_t *opt_ptr = L""; |
| 45 | |
| 46 | void _PyOS_ResetGetOpt(void) |
| 47 | { |
Ezio Melotti | a0dd22e | 2012-11-23 18:48:32 +0200 | [diff] [blame] | 48 | _PyOS_opterr = 1; |
Antoine Pitrou | 86838b0 | 2012-02-21 19:03:47 +0100 | [diff] [blame] | 49 | _PyOS_optind = 1; |
| 50 | _PyOS_optarg = NULL; |
| 51 | opt_ptr = L""; |
| 52 | } |
| 53 | |
Benjamin Peterson | 42aa93b | 2017-12-09 10:26:52 -0800 | [diff] [blame] | 54 | int _PyOS_GetOpt(int argc, wchar_t **argv, wchar_t *optstring, |
| 55 | const _PyOS_LongOption *longopts, int *longindex) |
Guido van Rossum | 2508ade | 1994-04-14 14:08:22 +0000 | [diff] [blame] | 56 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 57 | wchar_t *ptr; |
| 58 | wchar_t option; |
Guido van Rossum | 2508ade | 1994-04-14 14:08:22 +0000 | [diff] [blame] | 59 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 60 | if (*opt_ptr == '\0') { |
Guido van Rossum | 2508ade | 1994-04-14 14:08:22 +0000 | [diff] [blame] | 61 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 62 | if (_PyOS_optind >= argc) |
| 63 | return -1; |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 64 | #ifdef MS_WINDOWS |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 65 | else if (wcscmp(argv[_PyOS_optind], L"/?") == 0) { |
| 66 | ++_PyOS_optind; |
| 67 | return 'h'; |
| 68 | } |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 69 | #endif |
| 70 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 71 | else if (argv[_PyOS_optind][0] != L'-' || |
| 72 | argv[_PyOS_optind][1] == L'\0' /* lone dash */ ) |
| 73 | return -1; |
Guido van Rossum | 2508ade | 1994-04-14 14:08:22 +0000 | [diff] [blame] | 74 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 75 | else if (wcscmp(argv[_PyOS_optind], L"--") == 0) { |
| 76 | ++_PyOS_optind; |
| 77 | return -1; |
| 78 | } |
Guido van Rossum | 2508ade | 1994-04-14 14:08:22 +0000 | [diff] [blame] | 79 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 80 | else if (wcscmp(argv[_PyOS_optind], L"--help") == 0) { |
| 81 | ++_PyOS_optind; |
| 82 | return 'h'; |
| 83 | } |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 84 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 85 | else if (wcscmp(argv[_PyOS_optind], L"--version") == 0) { |
| 86 | ++_PyOS_optind; |
| 87 | return 'V'; |
| 88 | } |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 89 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 90 | opt_ptr = &argv[_PyOS_optind++][1]; |
| 91 | } |
Guido van Rossum | 2508ade | 1994-04-14 14:08:22 +0000 | [diff] [blame] | 92 | |
Ezio Melotti | 7c66319 | 2012-11-18 13:55:52 +0200 | [diff] [blame] | 93 | if ((option = *opt_ptr++) == L'\0') |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 94 | return -1; |
Christian Heimes | 33fe809 | 2008-04-13 13:53:33 +0000 | [diff] [blame] | 95 | |
Benjamin Peterson | 42aa93b | 2017-12-09 10:26:52 -0800 | [diff] [blame] | 96 | if (option == L'-') { |
| 97 | // Parse long option. |
| 98 | if (*opt_ptr == L'\0') { |
| 99 | fprintf(stderr, "expected long option\n"); |
| 100 | return -1; |
| 101 | } |
| 102 | *longindex = 0; |
| 103 | const _PyOS_LongOption *opt; |
| 104 | for (opt = &longopts[*longindex]; opt->name; opt = &longopts[++(*longindex)]) { |
| 105 | if (!wcscmp(opt->name, opt_ptr)) |
| 106 | break; |
| 107 | } |
| 108 | if (!opt->name) { |
| 109 | fprintf(stderr, "unknown option %ls\n", argv[_PyOS_optind - 1]); |
| 110 | return '_'; |
| 111 | } |
| 112 | opt_ptr = L""; |
| 113 | if (!opt->has_arg) { |
| 114 | return opt->val; |
| 115 | } |
| 116 | if (_PyOS_optind >= argc) { |
| 117 | fprintf(stderr, "Argument expected for the %ls options\n", |
| 118 | argv[_PyOS_optind - 1]); |
| 119 | return '_'; |
| 120 | } |
| 121 | _PyOS_optarg = argv[_PyOS_optind++]; |
| 122 | return opt->val; |
| 123 | } |
| 124 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 125 | if (option == 'J') { |
Ezio Melotti | 7c66319 | 2012-11-18 13:55:52 +0200 | [diff] [blame] | 126 | if (_PyOS_opterr) |
| 127 | fprintf(stderr, "-J is reserved for Jython\n"); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 128 | return '_'; |
| 129 | } |
Christian Heimes | 33fe809 | 2008-04-13 13:53:33 +0000 | [diff] [blame] | 130 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 131 | if ((ptr = wcschr(optstring, option)) == NULL) { |
| 132 | if (_PyOS_opterr) |
Ezio Melotti | 7c66319 | 2012-11-18 13:55:52 +0200 | [diff] [blame] | 133 | fprintf(stderr, "Unknown option: -%c\n", (char)option); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 134 | return '_'; |
| 135 | } |
Guido van Rossum | 2508ade | 1994-04-14 14:08:22 +0000 | [diff] [blame] | 136 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 137 | if (*(ptr + 1) == L':') { |
| 138 | if (*opt_ptr != L'\0') { |
| 139 | _PyOS_optarg = opt_ptr; |
| 140 | opt_ptr = L""; |
| 141 | } |
Guido van Rossum | 2508ade | 1994-04-14 14:08:22 +0000 | [diff] [blame] | 142 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 143 | else { |
| 144 | if (_PyOS_optind >= argc) { |
| 145 | if (_PyOS_opterr) |
| 146 | fprintf(stderr, |
| 147 | "Argument expected for the -%c option\n", (char)option); |
| 148 | return '_'; |
| 149 | } |
Guido van Rossum | 2508ade | 1994-04-14 14:08:22 +0000 | [diff] [blame] | 150 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 151 | _PyOS_optarg = argv[_PyOS_optind++]; |
| 152 | } |
| 153 | } |
Guido van Rossum | 2508ade | 1994-04-14 14:08:22 +0000 | [diff] [blame] | 154 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 155 | return option; |
Guido van Rossum | 2508ade | 1994-04-14 14:08:22 +0000 | [diff] [blame] | 156 | } |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 157 | |
| 158 | #ifdef __cplusplus |
| 159 | } |
| 160 | #endif |
| 161 | |