--- datetime.h.orig	Sat Mar 11 03:14:43 2000
+++ datetime.h	Fri Mar 16 20:27:14 2001
@@ -1,5 +1,5 @@
 /*
- *	$Id: datetime.h,v 1.2 2000/03/11 02:14:43 chuck Exp $
+ * $Id: datetime.h,v 1.4 2001/03/16 19:27:14 chuck Exp $
  * Libmcal - Modular Calendar Access Library
  * Copyright (C) 1999 Mark Musone and Andrew Skalski
  *
@@ -26,7 +26,7 @@
  * Andrew Skalski
  * askalski@chek.com
  *
- * mcal@lists.chek.com
+ * libmcal-users@lists.sourceforge.net
  */
 
 #ifndef	_DATETIME_H
@@ -66,6 +66,11 @@
 	DECEMBER
 } month_t;
 
+typedef enum {
+	DT_FORWARD,
+	DT_BACKWARD
+} direction_t;
+
 /**
  * struct datetime
  *
@@ -178,11 +183,34 @@
 /* Returns the week number for d=day, m=month, y=year */
 int 	dt_weekofyear(int d, int m, int y);
 
+/* Returns the week number in the given month counting in the given direction */
+int 	dt_orderofmonth( const datetime_t *dt, const direction_t direction);
+
 /* convenience macros to get the first/last days of a week */
 #define	dt_startofweek(dt, ref, weekstart) \
 		dt_setweekof((dt), (ref), (weekstart), (weekstart))
 #define	dt_endofweek(dt, ref, weekstart) \
 		dt_setweekof((dt), (ref), (weekstart), (7+(weekstart)-1)%7)
+#define	dt_dayofweekstr(dayno)        \
+		(dayno) >= 4 ?        \
+			(dayno) = 6 ?     \
+				"SA" :        \
+				(dayno) = 5 ? \
+					"FR" :    \
+					"TH"      \
+				;             \
+			;:                \
+			(dayno) >= 2 ?    \
+				(dayno) = 3 ? \
+					"WE" :    \
+					"TU"      \
+				;:             \
+				(dayno) = 1 ? \
+					"MO" :    \
+					"SU"      \
+				;             \
+			;                 \
+				
 
 /**********************************/