speech signal process tools

				/*				**  GETOPT PROGRAM AND LIBRARY ROUTINE				**				**  I wrote main() and AT&T wrote getopt() and we both put our efforts into				**  the public domain via mod.sources.				**	Rich $alz				**	Mirror Systems				**	(mirror!rs, rs@mirror.TMC.COM)				**	August 10, 1986				*/								#ifndef lint					static char *sccs_id = "@(#)getopt.c	1.1 12/1/87 PD";				#endif								#include 								#if defined(M5500) || defined(M5600)				void exit();				#endif																				extern char	*index();				extern int	 optind;				extern char	*optarg;												main(ac, av)				    register int	 ac;				    register char 	*av[];				{				    register char 	*flags;				    register int	 c;								    /* Check usage. */				    if (ac < 2) {					(void)fprintf(stderr, "usage: %s flag-specification arg-list\n", av[0]);					exit(2);				    }								    /* Play games; remember the flags (first argument), then splice				       them out so it looks like a "standard" command vector. */				    flags = av[1];				    av[1] = av[0];				    av++;				    ac--;								    /* Print flags. */				    while ((c = getopt(ac, av, flags)) != EOF) {					if (c == '?')					    exit(1);					/* We assume that shells collapse multiple spaces in `` expansion. */					(void)printf("-%c %s ", c, index(flags, c)[1] == ':' ? optarg : "");				    }								    /* End of flags; print rest of options. */				    (void)printf("-- ");				    for (av += optind; *av; av++)					(void)printf("%s ", *av);				    exit(0);				    return 0;				}