pgis_getopt()

int pgis_getopt	(	int	argc,
		char **	argv,
		char *	opts
	)

Definition at line 44 of file getopt.c.

References ERR, pgis_optarg, pgis_optind, and pgis_optopt.

Referenced by main().

{
        static int sp = 1;
        register int c;
        register char *cp;

        if (sp == 1)
        {
                if (pgis_optind >= argc ||
                        argv[pgis_optind][0] != '-' /* && argv[pgis_optind][0] != '/' */ ||
                        argv[pgis_optind][1] == '\0')
                {
                        return(EOF);
                }
                else if (strcmp(argv[pgis_optind], "--") == 0)
                {
                        pgis_optind++;
                        return(EOF);
                }
        }
        pgis_optopt = c = argv[pgis_optind][sp];
        if (c == ':' || (cp=strchr(opts, c)) == 0)
        {
                ERR(": illegal option -- ", c);
                if (argv[pgis_optind][++sp] == '\0')
                {
                        pgis_optind++;
                        sp = 1;
                }
                return('?');
        }
        if (*++cp == ':')
        {
                if (argv[pgis_optind][sp+1] != '\0')
                        pgis_optarg = &argv[pgis_optind++][sp+1];
                else if (++pgis_optind >= argc)
                {
                        ERR(": option requires an argument -- ", c);
                        sp = 1;
                        return('?');
                }
                else
                        pgis_optarg = argv[pgis_optind++];
                sp = 1;
        }
        else
        {
                if (argv[pgis_optind][++sp] == '\0')
                {
                        sp = 1;
                        pgis_optind++;
                }
                pgis_optarg = NULL;
        }
        return(c);
}

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