--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/JavaScriptCore/wtf/DateMath.h Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,223 @@
+/*
+ * Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
+ * Copyright (C) 2006, 2007 Apple Inc. All rights reserved.
+ * Copyright (C) 2009 Google Inc. All rights reserved.
+ *
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Mozilla Communicator client code, released
+ * March 31, 1998.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1998
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either of the GNU General Public License Version 2 or later (the "GPL"),
+ * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ */
+
+#ifndef DateMath_h
+#define DateMath_h
+
+#include <math.h>
+#include <string.h>
+#include <time.h>
+#include <wtf/CurrentTime.h>
+#include <wtf/Noncopyable.h>
+#include <wtf/UnusedParam.h>
+
+namespace WTF {
+void initializeDates();
+int equivalentYearForDST(int year);
+
+// Not really math related, but this is currently the only shared place to put these.
+double parseDateFromNullTerminatedCharacters(const char* dateString);
+double timeClip(double);
+
+inline double jsCurrentTime()
+{
+ // JavaScript doesn't recognize fractions of a millisecond.
+ return floor(WTF::currentTimeMS());
+}
+
+const char * const weekdayName[7] = { "Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun" };
+const char * const monthName[12] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
+
+const double hoursPerDay = 24.0;
+const double minutesPerHour = 60.0;
+const double secondsPerHour = 60.0 * 60.0;
+const double secondsPerMinute = 60.0;
+const double msPerSecond = 1000.0;
+const double msPerMinute = 60.0 * 1000.0;
+const double msPerHour = 60.0 * 60.0 * 1000.0;
+const double msPerDay = 24.0 * 60.0 * 60.0 * 1000.0;
+const double msPerMonth = 2592000000.0;
+
+// Returns the number of days from 1970-01-01 to the specified date.
+double dateToDaysFrom1970(int year, int month, int day);
+int msToYear(double ms);
+int dayInYear(double ms, int year);
+int monthFromDayInYear(int dayInYear, bool leapYear);
+int dayInMonthFromDayInYear(int dayInYear, bool leapYear);
+
+} // namespace WTF
+
+using WTF::dateToDaysFrom1970;
+using WTF::dayInMonthFromDayInYear;
+using WTF::dayInYear;
+using WTF::minutesPerHour;
+using WTF::monthFromDayInYear;
+using WTF::msPerDay;
+using WTF::msPerSecond;
+using WTF::msToYear;
+using WTF::secondsPerMinute;
+
+#if USE(JSC)
+namespace JSC {
+class ExecState;
+struct GregorianDateTime;
+
+void msToGregorianDateTime(ExecState*, double, bool outputIsUTC, GregorianDateTime&);
+double gregorianDateTimeToMS(ExecState*, const GregorianDateTime&, double, bool inputIsUTC);
+double getUTCOffset(ExecState*);
+double parseDateFromNullTerminatedCharacters(ExecState*, const char* dateString);
+
+// Intentionally overridding the default tm of the system.
+// The members of tm differ on various operating systems.
+struct GregorianDateTime : Noncopyable {
+ GregorianDateTime()
+ : second(0)
+ , minute(0)
+ , hour(0)
+ , weekDay(0)
+ , monthDay(0)
+ , yearDay(0)
+ , month(0)
+ , year(0)
+ , isDST(0)
+ , utcOffset(0)
+ , timeZone(0)
+ {
+ }
+
+ ~GregorianDateTime()
+ {
+ delete [] timeZone;
+ }
+
+ GregorianDateTime(ExecState* exec, const tm& inTm)
+ : second(inTm.tm_sec)
+ , minute(inTm.tm_min)
+ , hour(inTm.tm_hour)
+ , weekDay(inTm.tm_wday)
+ , monthDay(inTm.tm_mday)
+ , yearDay(inTm.tm_yday)
+ , month(inTm.tm_mon)
+ , year(inTm.tm_year)
+ , isDST(inTm.tm_isdst)
+ {
+ UNUSED_PARAM(exec);
+#if HAVE(TM_GMTOFF)
+ utcOffset = static_cast<int>(inTm.tm_gmtoff);
+#else
+ utcOffset = static_cast<int>(getUTCOffset(exec) / WTF::msPerSecond + (isDST ? WTF::secondsPerHour : 0));
+#endif
+
+#if HAVE(TM_ZONE)
+ int inZoneSize = strlen(inTm.tm_zone) + 1;
+ timeZone = new char[inZoneSize];
+ strncpy(timeZone, inTm.tm_zone, inZoneSize);
+#else
+ timeZone = 0;
+#endif
+ }
+
+ operator tm() const
+ {
+ tm ret;
+ memset(&ret, 0, sizeof(ret));
+
+ ret.tm_sec = second;
+ ret.tm_min = minute;
+ ret.tm_hour = hour;
+ ret.tm_wday = weekDay;
+ ret.tm_mday = monthDay;
+ ret.tm_yday = yearDay;
+ ret.tm_mon = month;
+ ret.tm_year = year;
+ ret.tm_isdst = isDST;
+
+#if HAVE(TM_GMTOFF)
+ ret.tm_gmtoff = static_cast<long>(utcOffset);
+#endif
+#if HAVE(TM_ZONE)
+ ret.tm_zone = timeZone;
+#endif
+
+ return ret;
+ }
+
+ void copyFrom(const GregorianDateTime& rhs)
+ {
+ second = rhs.second;
+ minute = rhs.minute;
+ hour = rhs.hour;
+ weekDay = rhs.weekDay;
+ monthDay = rhs.monthDay;
+ yearDay = rhs.yearDay;
+ month = rhs.month;
+ year = rhs.year;
+ isDST = rhs.isDST;
+ utcOffset = rhs.utcOffset;
+ if (rhs.timeZone) {
+ int inZoneSize = strlen(rhs.timeZone) + 1;
+ timeZone = new char[inZoneSize];
+ strncpy(timeZone, rhs.timeZone, inZoneSize);
+ } else
+ timeZone = 0;
+ }
+
+ int second;
+ int minute;
+ int hour;
+ int weekDay;
+ int monthDay;
+ int yearDay;
+ int month;
+ int year;
+ int isDST;
+ int utcOffset;
+ char* timeZone;
+};
+
+static inline int gmtoffset(const GregorianDateTime& t)
+{
+ return t.utcOffset;
+}
+} // namespace JSC
+#endif // USE(JSC)
+
+#endif // DateMath_h