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--- 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" \
+ ; \
+ ; \
+
/**********************************/
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