Mercurial > cpython-lru_cache-weakref

annotate Python/getopt.c @ 38579:19430cdff2bd legacy-trunk

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clean up function declarations to conform to PEP-7 style.
author Andrew MacIntyre <andymac@bullseye.apana.org.au>
date Sun, 04 Jun 2006 12:59:59 +0000
parents 2f3f2e32dfd9
children c48b3a68f696
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1 /*---------------------------------------------------------------------------*
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2 * <RCS keywords>
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3 *
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4 * C++ Library
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5 *
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6 * Copyright 1992-1994, David Gottner
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7 *
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8 * All Rights Reserved
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9 *
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10 * Permission to use, copy, modify, and distribute this software and its
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11 * documentation for any purpose and without fee is hereby granted,
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12 * provided that the above copyright notice, this permission notice and
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13 * the following disclaimer notice appear unmodified in all copies.
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14 *
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15 * I DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
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16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL I
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17 * BE LIABLE FOR ANY SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY
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18 * DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA, OR PROFITS, WHETHER
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19 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
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20 * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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21 *
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22 * Nevertheless, I would like to know about bugs in this library or
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23 * suggestions for improvment. Send bug reports and feedback to
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24 * davegottner@delphi.com.
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25 *---------------------------------------------------------------------------*/
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26
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27 #include <stdio.h>
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28 #include <string.h>
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29
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30 #ifdef __cplusplus
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31 extern "C" {
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32 #endif
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33
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34 int _PyOS_opterr = 1; /* generate error messages */
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35 int _PyOS_optind = 1; /* index into argv array */
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36 char *_PyOS_optarg = NULL; /* optional argument */
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37
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38 int _PyOS_GetOpt(int argc, char **argv, char *optstring)
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39 {
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40 static char *opt_ptr = "";
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41 char *ptr;
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42 int option;
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43
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44 if (*opt_ptr == '\0') {
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45
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46 if (_PyOS_optind >= argc || argv[_PyOS_optind][0] != '-' ||
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47 argv[_PyOS_optind][1] == '\0' /* lone dash */ )
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48 return -1;
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49
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50 else if (strcmp(argv[_PyOS_optind], "--") == 0) {
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51 ++_PyOS_optind;
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52 return -1;
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53 }
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54
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55 opt_ptr = &argv[_PyOS_optind++][1];
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56 }
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57
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58 if ( (option = *opt_ptr++) == '\0')
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59 return -1;
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60
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61 if ((ptr = strchr(optstring, option)) == NULL) {
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62 if (_PyOS_opterr)
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63 fprintf(stderr, "Unknown option: -%c\n", option);
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64
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65 return '?';
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66 }
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67
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68 if (*(ptr + 1) == ':') {
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69 if (*opt_ptr != '\0') {
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70 _PyOS_optarg = opt_ptr;
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71 opt_ptr = "";
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72 }
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73
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74 else {
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75 if (_PyOS_optind >= argc) {
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76 if (_PyOS_opterr)
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77 fprintf(stderr,
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78 "Argument expected for the -%c option\n", option);
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79 return '?';
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80 }
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81
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82 _PyOS_optarg = argv[_PyOS_optind++];
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83 }
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84 }
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85
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86 return option;
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87 }
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88
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89 #ifdef __cplusplus
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90 }
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91 #endif
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92