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- /*---------------------------------------------------------------------------*
- * <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
- * davegottner@delphi.com.
- *---------------------------------------------------------------------------*/
-
- #include <stdio.h>
- #include <string.h>
-
- #define bool int
- #define TRUE 1
- #define FALSE 0
-
-
- bool opterr = TRUE; /* generate error messages */
- int optind = 1; /* index into argv array */
- char * optarg = NULL; /* optional argument */
-
-
- int getopt(int argc, char *argv[], const char optstring[])
- {
- static char *opt_ptr = "";
- register char *ptr;
- int option;
-
- if (*opt_ptr == '\0') {
-
- if (optind >= argc || argv[optind][0] != '-')
- return -1;
-
- else if (strcmp(argv[optind], "--") == 0) {
- ++optind;
- return -1;
- }
-
- opt_ptr = &argv[optind++][1];
- }
-
- if ((ptr = strchr(optstring, option = *opt_ptr++)) == NULL) {
- if (opterr)
- fprintf(stderr, "Unknown option: -%c\n", option);
-
- return '?';
- }
-
- if (*(ptr + 1) == ':') {
- if (*opt_ptr != '\0') {
- optarg = opt_ptr;
- opt_ptr = "";
- }
-
- else {
- if (optind >= argc) {
- if (opterr)
- fprintf(stderr,
- "Argument expected for the -%c option\n", option);
- return '?';
- }
-
- optarg = argv[optind++];
- }
- }
-
- return option;
- }
-