slackware-current/source/y/bsd-games/bsd-games.pom.diff

--- ./pom/pom.6.orig	2001-08-29 10:11:31.000000000 -0500
+++ ./pom/pom.6	2006-09-08 19:36:28.000000000 -0500
@@ -33,7 +33,7 @@
 .\"
 .\"	@(#)pom.6	8.1 (Berkeley) 5/31/93
 .\"
-.Dd January 9, 1999
+.Dd September 8, 2006
 .Dt POM 6
 .Os
 .Sh NAME
@@ -41,7 +41,8 @@
 .Nd display the phase of the moon
 .Sh SYNOPSIS
 .Nm
-.Op [[[[[cc]yy]mm]dd]HH]
+.Op Fl d Ar num
+.Op Ar [[[[cc]yy]mm]dd]HH
 .Sh DESCRIPTION
 The
 .Nm
@@ -49,6 +50,13 @@
 Useful for selecting software completion target dates and predicting
 managerial behavior.
 .Pp
+.Bl -tag -width [-d num]
+.It Ar [-d num]
+Display the percentage with
+.Ar num
+decimals (within reasonable limits).
+The default is to display an integer percentage.
+.El
 .Bl -tag -width [[[[[cc]yy]mm]dd]HH]
 .It Ar [[[[[cc]yy]mm]dd]HH]
 Display the phase of the moon for a given time.  The format is similar to
@@ -67,6 +75,9 @@
 .Pp
 This program does not allow for the difference between the TDT and
 UTC timescales (about one minute at the time of writing).
+.Sh NOTES
+.Nm
+recognizes 3321 as being within reasonable limits.
 .Sh ACKNOWLEDGEMENTS
 This program is based on algorithms from
 .%B Practical Astronomy with Your Calculator, Third Edition
--- ./pom/pom.c.orig	2000-08-03 19:12:33.000000000 -0500
+++ ./pom/pom.c	2006-09-08 19:47:09.000000000 -0500
@@ -59,11 +59,14 @@
  *
  * Updated to the Third Edition of Duffett-Smith's book, Paul Janzen, IX 1998
  *
+ * Modified for Slackware by Eric Hameleers <alien@slackware.com> 09-09-2006
+ *
  */
 
 #include <ctype.h>
 #include <err.h>
 #include <math.h>
+#include <limits.h>
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
@@ -101,16 +104,36 @@
 	char *argv[];
 {
 	time_t tmpt, now;
-	double days, today, tomorrow;
+	double days, today, tomorrow, accuracy;
 	char buf[1024];
+	int ch, decimals=0;
 
 	/* Revoke setgid privileges */
 	setregid(getgid(), getgid());
 
+	while ((ch = getopt(argc, argv, "d:h?")) != -1)
+		switch (ch) {
+		case 'd':
+			decimals = atoi(optarg);
+			if (decimals < 0 || (decimals != 3321 && decimals > __DBL_DIG__))
+			errx(1, "illegal argument for -d option");
+			break;
+		case 'h':
+		case '?':
+			 (void)fprintf(stderr, "usage: pom [-d digits] [[[[[cc]yy]mm]dd]HH]\n");
+			exit(1);
+		default:
+			break;
+	}
+	argc -= optind;
+	argv += optind;
+
+	accuracy = ( decimals == 3321 ? 0.5: 0.5 / pow(10, decimals) );
+
 	if (time(&now) == (time_t)-1)
 		err(1, "time");
-	if (argc > 1) {
-		tmpt = parsetime(argv[1]);
+	if (argc > 0) {
+		tmpt = parsetime(argv[0]);
 		strftime(buf, sizeof(buf), "%a %Y %b %e %H:%M:%S (%Z)",
 			localtime(&tmpt));
 		printf("%s:  ", buf);
@@ -118,15 +141,20 @@
 		tmpt = now;
 	}
 	days = (tmpt - EPOCH_MINUS_1970 * 86400) / 86400.0;
-	today = potm(days) + .5;
+	today = potm(days) + accuracy;
 	if (tmpt < now)
 		(void)printf("The Moon was ");
 	else if (tmpt == now)
 		(void)printf("The Moon is ");
 	else
 		(void)printf("The Moon will be ");
-	if ((int)today == 100)
+	if ((int)today == 100) {
 		(void)printf("Full\n");
+		if (decimals == 3321) 
+			/* (void)printf("Howl!!! Know me, I am PJV.\n"); */
+			/* PJV's number is not 3321, and shan't be revealed here */
+			(void)printf("I saw the best minds of my generation destroyed by\n");
+	}
 	else if (!(int)today)
 		(void)printf("New\n");
 	else {
@@ -134,19 +162,19 @@
 		if ((int)today == 50)
 			(void)printf("%s\n", tomorrow > today ?
 			    "at the First Quarter" : "at the Last Quarter");
-			/* today is 0.5 too big, but it doesn't matter here
-			 * since the phase is changing fast enough
+			/* today is "accuracy" too big, but it doesn't matter
+			 * here since the phase is changing fast enough
 			 */
 		else {
-			today -= 0.5;		/* Now it might matter */
+			today -= accuracy;	/* Now it might matter */
 			(void)printf("%s ", tomorrow > today ?
 			    "Waxing" : "Waning");
 			if (today > 50)
-				(void)printf("Gibbous (%1.0f%% of Full)\n",
-				    today);
+				(void)printf("Gibbous (%1.*f%% of Full)\n",
+				    decimals, today);
 			else if (today < 50)
-				(void)printf("Crescent (%1.0f%% of Full)\n",
-				    today);
+				(void)printf("Crescent (%1.*f%% of Full)\n",
+				    decimals, today);
 		}
 	}
 	exit(0);