cpython-lru_cache-weakref: Python/getopt.c annotate

annotate Python/getopt.c @ 5758:bfe9ba74c19e legacy-trunk

Fix problem discovered by Greg McFarlane: when an imported module replaces its own entry in sys.module, reference count errors ensue; even if there is no reference count problem, it would be preferable for the import to yield the new thing in sys.modules anyway (if only because that's what later imports will yield). This opens the road to an official hack to implement a __getattr__ like feature for modules: stick an instance in sys.modules[__name__].

author	Guido van Rossum <guido@python.org>
date	Thu, 10 Jul 1997 18:00:45 +0000
parents	e8996884e8e1
children	f39bee3ff22b

rev	line source
1598 ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	1 /---------------------------------------------------------------------------
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	2 * <RCS keywords>
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	3 *
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	4 * C++ Library
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	5 *
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	6 * Copyright 1992-1994, David Gottner
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	7 *
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	8 * All Rights Reserved
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	9 *
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	10 * Permission to use, copy, modify, and distribute this software and its
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	11 * documentation for any purpose and without fee is hereby granted,
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	12 * provided that the above copyright notice, this permission notice and
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	13 * the following disclaimer notice appear unmodified in all copies.
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	14 *
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	15 * I DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL I
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	17 * BE LIABLE FOR ANY SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	18 * DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA, OR PROFITS, WHETHER
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	19 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	20 * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	21 *
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	22 * Nevertheless, I would like to know about bugs in this library or
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	23 * suggestions for improvment. Send bug reports and feedback to
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	24 * davegottner@delphi.com.
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	25 ---------------------------------------------------------------------------/
1585 7c75f60468f8 A getopt.c for your amusement Guido van Rossum <guido@python.org> parents: diff changeset	26
7c75f60468f8 A getopt.c for your amusement Guido van Rossum <guido@python.org> parents: diff changeset	27 #include <stdio.h>
7c75f60468f8 A getopt.c for your amusement Guido van Rossum <guido@python.org> parents: diff changeset	28 #include <string.h>
7c75f60468f8 A getopt.c for your amusement Guido van Rossum <guido@python.org> parents: diff changeset	29
1598 ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	30 #define bool int
5313 e8996884e8e1 (Jack:) Don't define TRUE and FALSE if already defined. Guido van Rossum <guido@python.org> parents: 2200 diff changeset	31 #ifndef TRUE
1598 ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	32 #define TRUE 1
5313 e8996884e8e1 (Jack:) Don't define TRUE and FALSE if already defined. Guido van Rossum <guido@python.org> parents: 2200 diff changeset	33 #endif
e8996884e8e1 (Jack:) Don't define TRUE and FALSE if already defined. Guido van Rossum <guido@python.org> parents: 2200 diff changeset	34 #ifndef FALSE
1598 ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	35 #define FALSE 0
5313 e8996884e8e1 (Jack:) Don't define TRUE and FALSE if already defined. Guido van Rossum <guido@python.org> parents: 2200 diff changeset	36 #endif
1585 7c75f60468f8 A getopt.c for your amusement Guido van Rossum <guido@python.org> parents: diff changeset	37
7c75f60468f8 A getopt.c for your amusement Guido van Rossum <guido@python.org> parents: diff changeset	38 bool opterr = TRUE; /* generate error messages */
7c75f60468f8 A getopt.c for your amusement Guido van Rossum <guido@python.org> parents: diff changeset	39 int optind = 1; /* index into argv array */
7c75f60468f8 A getopt.c for your amusement Guido van Rossum <guido@python.org> parents: diff changeset	40 char * optarg = NULL; /* optional argument */
7c75f60468f8 A getopt.c for your amusement Guido van Rossum <guido@python.org> parents: diff changeset	41
7c75f60468f8 A getopt.c for your amusement Guido van Rossum <guido@python.org> parents: diff changeset	42
2200 5ae922cfe404 don't use function prototypes Guido van Rossum <guido@python.org> parents: 1598 diff changeset	43 int getopt(argc,argv,optstring)
5ae922cfe404 don't use function prototypes Guido van Rossum <guido@python.org> parents: 1598 diff changeset	44 int argc;
5ae922cfe404 don't use function prototypes Guido van Rossum <guido@python.org> parents: 1598 diff changeset	45 char *argv[];
5ae922cfe404 don't use function prototypes Guido van Rossum <guido@python.org> parents: 1598 diff changeset	46 char optstring[];
1585 7c75f60468f8 A getopt.c for your amusement Guido van Rossum <guido@python.org> parents: diff changeset	47 {
1598 ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	48 static char *opt_ptr = "";
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	49 register char *ptr;
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	50 int option;
1585 7c75f60468f8 A getopt.c for your amusement Guido van Rossum <guido@python.org> parents: diff changeset	51
1598 ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	52 if (*opt_ptr == '\0') {
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	53
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	54 if (optind >= argc \|\| argv[optind][0] != '-')
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	55 return -1;
1585 7c75f60468f8 A getopt.c for your amusement Guido van Rossum <guido@python.org> parents: diff changeset	56
1598 ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	57 else if (strcmp(argv[optind], "--") == 0) {
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	58 ++optind;
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	59 return -1;
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	60 }
1585 7c75f60468f8 A getopt.c for your amusement Guido van Rossum <guido@python.org> parents: diff changeset	61
1598 ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	62 opt_ptr = &argv[optind++][1];
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	63 }
1585 7c75f60468f8 A getopt.c for your amusement Guido van Rossum <guido@python.org> parents: diff changeset	64
1598 ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	65 if ((ptr = strchr(optstring, option = *opt_ptr++)) == NULL) {
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	66 if (opterr)
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	67 fprintf(stderr, "Unknown option: -%c\n", option);
1585 7c75f60468f8 A getopt.c for your amusement Guido van Rossum <guido@python.org> parents: diff changeset	68
1598 ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	69 return '?';
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	70 }
1585 7c75f60468f8 A getopt.c for your amusement Guido van Rossum <guido@python.org> parents: diff changeset	71
1598 ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	72 if (*(ptr + 1) == ':') {
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	73 if (*opt_ptr != '\0') {
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	74 optarg = opt_ptr;
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	75 opt_ptr = "";
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	76 }
1585 7c75f60468f8 A getopt.c for your amusement Guido van Rossum <guido@python.org> parents: diff changeset	77
1598 ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	78 else {
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	79 if (optind >= argc) {
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	80 if (opterr)
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	81 fprintf(stderr,
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	82 "Argument expected for the -%c option\n", option);
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	83 return '?';
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	84 }
1585 7c75f60468f8 A getopt.c for your amusement Guido van Rossum <guido@python.org> parents: diff changeset	85
1598 ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	86 optarg = argv[optind++];
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	87 }
ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	88 }
1585 7c75f60468f8 A getopt.c for your amusement Guido van Rossum <guido@python.org> parents: diff changeset	89
1598 ecbadb818847 New version handles -o<string> same as -o <string> Guido van Rossum <guido@python.org> parents: 1585 diff changeset	90 return option;
1585 7c75f60468f8 A getopt.c for your amusement Guido van Rossum <guido@python.org> parents: diff changeset	91 }

Mercurial > cpython-lru_cache-weakref

annotate Python/getopt.c @ 5758:bfe9ba74c19e legacy-trunk