--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/glib/glib/gdate.h Fri Apr 16 16:46:38 2010 +0300
@@ -0,0 +1,263 @@
+/* GLIB - Library of useful routines for C programming
+ * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
+ * Portions copyright (c) 2006-2009 Nokia Corporation. All rights reserved.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+/*
+ * Modified by the GLib Team and others 1997-2000. See the AUTHORS
+ * file for a list of people on the GLib Team. See the ChangeLog
+ * files for a list of changes. These files are distributed with
+ * GLib at ftp://ftp.gtk.org/pub/gtk/.
+ */
+
+#if defined(G_DISABLE_SINGLE_INCLUDES) && !defined (__GLIB_H_INSIDE__) && !defined (GLIB_COMPILATION)
+#error "Only <glib.h> can be included directly."
+#endif
+
+#ifndef __G_DATE_H__
+#define __G_DATE_H__
+
+#include <time.h>
+
+#include <glib/gtypes.h>
+#include <glib/gquark.h>
+
+G_BEGIN_DECLS
+
+/* GDate
+ *
+ * Date calculations (not time for now, to be resolved). These are a
+ * mutant combination of Steffen Beyer's DateCalc routines
+ * (http://www.perl.com/CPAN/authors/id/STBEY/) and Jon Trowbridge's
+ * date routines (written for in-house software). Written by Havoc
+ * Pennington <hp@pobox.com>
+ */
+
+typedef gint32 GTime;
+typedef guint16 GDateYear;
+typedef guint8 GDateDay; /* day of the month */
+typedef struct _GDate GDate;
+
+/* enum used to specify order of appearance in parsed date strings */
+typedef enum
+{
+ G_DATE_DAY = 0,
+ G_DATE_MONTH = 1,
+ G_DATE_YEAR = 2
+} GDateDMY;
+
+/* actual week and month values */
+typedef enum
+{
+ G_DATE_BAD_WEEKDAY = 0,
+ G_DATE_MONDAY = 1,
+ G_DATE_TUESDAY = 2,
+ G_DATE_WEDNESDAY = 3,
+ G_DATE_THURSDAY = 4,
+ G_DATE_FRIDAY = 5,
+ G_DATE_SATURDAY = 6,
+ G_DATE_SUNDAY = 7
+} GDateWeekday;
+typedef enum
+{
+ G_DATE_BAD_MONTH = 0,
+ G_DATE_JANUARY = 1,
+ G_DATE_FEBRUARY = 2,
+ G_DATE_MARCH = 3,
+ G_DATE_APRIL = 4,
+ G_DATE_MAY = 5,
+ G_DATE_JUNE = 6,
+ G_DATE_JULY = 7,
+ G_DATE_AUGUST = 8,
+ G_DATE_SEPTEMBER = 9,
+ G_DATE_OCTOBER = 10,
+ G_DATE_NOVEMBER = 11,
+ G_DATE_DECEMBER = 12
+} GDateMonth;
+
+#define G_DATE_BAD_JULIAN 0U
+#define G_DATE_BAD_DAY 0U
+#define G_DATE_BAD_YEAR 0U
+
+/* Note: directly manipulating structs is generally a bad idea, but
+ * in this case it's an *incredibly* bad idea, because all or part
+ * of this struct can be invalid at any given time. Use the functions,
+ * or you will get hosed, I promise.
+ */
+struct _GDate
+{
+ guint julian_days : 32; /* julian days representation - we use a
+ * bitfield hoping that 64 bit platforms
+ * will pack this whole struct in one big
+ * int
+ */
+
+ guint julian : 1; /* julian is valid */
+ guint dmy : 1; /* dmy is valid */
+
+ /* DMY representation */
+ guint day : 6;
+ guint month : 4;
+ guint year : 16;
+};
+
+/* g_date_new() returns an invalid date, you then have to _set() stuff
+ * to get a usable object. You can also allocate a GDate statically,
+ * then call g_date_clear() to initialize.
+ */
+IMPORT_C GDate* g_date_new (void);
+IMPORT_C GDate* g_date_new_dmy (GDateDay day,
+ GDateMonth month,
+ GDateYear year);
+IMPORT_C GDate* g_date_new_julian (guint32 julian_day);
+IMPORT_C void g_date_free (GDate *date);
+
+/* check g_date_valid() after doing an operation that might fail, like
+ * _parse. Almost all g_date operations are undefined on invalid
+ * dates (the exceptions are the mutators, since you need those to
+ * return to validity).
+ */
+IMPORT_C gboolean g_date_valid (const GDate *date);
+IMPORT_C gboolean g_date_valid_day (GDateDay day) G_GNUC_CONST;
+IMPORT_C gboolean g_date_valid_month (GDateMonth month) G_GNUC_CONST;
+IMPORT_C gboolean g_date_valid_year (GDateYear year) G_GNUC_CONST;
+IMPORT_C gboolean g_date_valid_weekday (GDateWeekday weekday) G_GNUC_CONST;
+IMPORT_C gboolean g_date_valid_julian (guint32 julian_date) G_GNUC_CONST;
+IMPORT_C gboolean g_date_valid_dmy (GDateDay day,
+ GDateMonth month,
+ GDateYear year) G_GNUC_CONST;
+
+IMPORT_C GDateWeekday g_date_get_weekday (const GDate *date);
+IMPORT_C GDateMonth g_date_get_month (const GDate *date);
+IMPORT_C GDateYear g_date_get_year (const GDate *date);
+IMPORT_C GDateDay g_date_get_day (const GDate *date);
+IMPORT_C guint32 g_date_get_julian (const GDate *date);
+IMPORT_C guint g_date_get_day_of_year (const GDate *date);
+/* First monday/sunday is the start of week 1; if we haven't reached
+ * that day, return 0. These are not ISO weeks of the year; that
+ * routine needs to be added.
+ * these functions return the number of weeks, starting on the
+ * corrsponding day
+ */
+IMPORT_C guint g_date_get_monday_week_of_year (const GDate *date);
+IMPORT_C guint g_date_get_sunday_week_of_year (const GDate *date);
+IMPORT_C guint g_date_get_iso8601_week_of_year (const GDate *date);
+
+/* If you create a static date struct you need to clear it to get it
+ * in a sane state before use. You can clear a whole array at
+ * once with the ndates argument.
+ */
+IMPORT_C void g_date_clear (GDate *date,
+ guint n_dates);
+
+/* The parse routine is meant for dates typed in by a user, so it
+ * permits many formats but tries to catch common typos. If your data
+ * needs to be strictly validated, it is not an appropriate function.
+ */
+IMPORT_C void g_date_set_parse (GDate *date,
+ const gchar *str);
+IMPORT_C void g_date_set_time (GDate *date,
+ time_t timet);
+IMPORT_C void g_date_set_time_val (GDate *date,
+ GTimeVal *timeval);
+#ifndef G_DISABLE_DEPRECATED
+IMPORT_C void g_date_set_time (GDate *date,
+ GTime time_);
+#endif
+IMPORT_C void g_date_set_month (GDate *date,
+ GDateMonth month);
+IMPORT_C void g_date_set_day (GDate *date,
+ GDateDay day);
+IMPORT_C void g_date_set_year (GDate *date,
+ GDateYear year);
+IMPORT_C void g_date_set_dmy (GDate *date,
+ GDateDay day,
+ GDateMonth month,
+ GDateYear y);
+IMPORT_C void g_date_set_julian (GDate *date,
+ guint32 julian_date);
+IMPORT_C gboolean g_date_is_first_of_month (const GDate *date);
+IMPORT_C gboolean g_date_is_last_of_month (const GDate *date);
+
+/* To go forward by some number of weeks just go forward weeks*7 days */
+IMPORT_C void g_date_add_days (GDate *date,
+ guint n_days);
+IMPORT_C void g_date_subtract_days (GDate *date,
+ guint n_days);
+
+/* If you add/sub months while day > 28, the day might change */
+IMPORT_C void g_date_add_months (GDate *date,
+ guint n_months);
+IMPORT_C void g_date_subtract_months (GDate *date,
+ guint n_months);
+
+/* If it's feb 29, changing years can move you to the 28th */
+IMPORT_C void g_date_add_years (GDate *date,
+ guint n_years);
+IMPORT_C void g_date_subtract_years (GDate *date,
+ guint n_years);
+IMPORT_C gboolean g_date_is_leap_year (GDateYear year) G_GNUC_CONST;
+IMPORT_C guint8 g_date_get_days_in_month (GDateMonth month,
+ GDateYear year) G_GNUC_CONST;
+IMPORT_C guint8 g_date_get_monday_weeks_in_year (GDateYear year) G_GNUC_CONST;
+IMPORT_C guint8 g_date_get_sunday_weeks_in_year (GDateYear year) G_GNUC_CONST;
+
+/* Returns the number of days between the two dates. If date2 comes
+ before date1, a negative value is return. */
+IMPORT_C gint g_date_days_between (const GDate *date1,
+ const GDate *date2);
+
+/* qsort-friendly (with a cast...) */
+IMPORT_C gint g_date_compare (const GDate *lhs,
+ const GDate *rhs);
+IMPORT_C void g_date_to_struct_tm (const GDate *date,
+ struct tm *tm);
+
+IMPORT_C void g_date_clamp (GDate *date,
+ const GDate *min_date,
+ const GDate *max_date);
+
+/* Swap date1 and date2's values if date1 > date2. */
+IMPORT_C void g_date_order (GDate *date1, GDate *date2);
+
+/* Just like strftime() except you can only use date-related formats.
+ * Using a time format is undefined.
+ */
+IMPORT_C gsize g_date_strftime (gchar *s,
+ gsize slen,
+ const gchar *format,
+ const GDate *date);
+
+#ifndef G_DISABLE_DEPRECATED
+
+#define g_date_weekday g_date_get_weekday
+#define g_date_month g_date_get_month
+#define g_date_year g_date_get_year
+#define g_date_day g_date_get_day
+#define g_date_julian g_date_get_julian
+#define g_date_day_of_year g_date_get_day_of_year
+#define g_date_monday_week_of_year g_date_get_monday_week_of_year
+#define g_date_sunday_week_of_year g_date_get_sunday_week_of_year
+#define g_date_days_in_month g_date_get_days_in_month
+#define g_date_monday_weeks_in_year g_date_get_monday_weeks_in_year
+#define g_date_sunday_weeks_in_year g_date_get_sunday_weeks_in_year
+
+#endif /* G_DISABLE_DEPRECATED */
+
+G_END_DECLS
+
+#endif /* __G_DATE_H__ */