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GeezerVison is showing github.com — cpython/Python/getopt.c at 3.6 · python/cpython Expand file tree/ Copy pathgetopt.cMore file actions 132 lines (108 loc) · 3.45 KB / Copy pathgetopt.cFile metadata and controls132 lines (108 loc) · 3.45 KB 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 /*---------------------------------------------------------------------------* * <RCS keywords> * * C++ Library * * Copyright 1992-1994, David Gottner * * All Rights Reserved * * Permission to use, copy, modify, and distribute this software and its * documentation for any purpose and without fee is hereby granted, * provided that the above copyright notice, this permission notice and * the following disclaimer notice appear unmodified in all copies. * * I DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL I * BE LIABLE FOR ANY SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY * DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA, OR PROFITS, WHETHER * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. * * Nevertheless, I would like to know about bugs in this library or * suggestions for improvment. Send bug reports and feedback to *---------------------------------------------------------------------------*/ /* Modified to support --help and --version, as well as /? on Windows * by Georg Brandl. */ #include <Python.h> #include <stdio.h> #include <string.h> #include <wchar.h> #include <pygetopt.h> #ifdef __cplusplus extern "C" { #endif int _PyOS_opterr = 1; /* generate error messages */ int _PyOS_optind = 1; /* index into argv array */ wchar_t *_PyOS_optarg = NULL; /* optional argument */ static wchar_t *opt_ptr = L""; void _PyOS_ResetGetOpt(void) { _PyOS_opterr = 1; _PyOS_optind = 1; _PyOS_optarg = NULL; opt_ptr = L""; } int _PyOS_GetOpt(int argc, wchar_t **argv, wchar_t *optstring) { wchar_t *ptr; wchar_t option; if (*opt_ptr == '\0') { if (_PyOS_optind >= argc) return -1; #ifdef MS_WINDOWS else if (wcscmp(argv[_PyOS_optind], L"/?") == 0) { ++_PyOS_optind; return 'h'; } #endif else if (argv[_PyOS_optind][0] != L'-' || argv[_PyOS_optind][1] == L'\0' /* lone dash */ ) return -1; else if (wcscmp(argv[_PyOS_optind], L"--") == 0) { ++_PyOS_optind; return -1; } else if (wcscmp(argv[_PyOS_optind], L"--help") == 0) { ++_PyOS_optind; return 'h'; } else if (wcscmp(argv[_PyOS_optind], L"--version") == 0) { ++_PyOS_optind; return 'V'; } opt_ptr = &argv[_PyOS_optind++][1]; } if ((option = *opt_ptr++) == L'\0') return -1; if (option == 'J') { if (_PyOS_opterr) fprintf(stderr, "-J is reserved for Jython\n"); return '_'; } if ((ptr = wcschr(optstring, option)) == NULL) { if (_PyOS_opterr) fprintf(stderr, "Unknown option: -%c\n", (char)option); return '_'; } if (*(ptr + 1) == L':') { if (*opt_ptr != L'\0') { _PyOS_optarg = opt_ptr; opt_ptr = L""; } else { if (_PyOS_optind >= argc) { if (_PyOS_opterr) fprintf(stderr, "Argument expected for the -%c option\n", (char)option); return '_'; } _PyOS_optarg = argv[_PyOS_optind++]; } } return option; } #ifdef __cplusplus } #endif |
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