1 files changed, 126 insertions, 0 deletions
diff --git a/Source/JavaScriptCore/wtf/DateMath.h b/Source/JavaScriptCore/wtf/DateMath.h
new file mode 100644
index 000000000..114acf8a8
--- /dev/null
+++ b/Source/JavaScriptCore/wtf/DateMath.h
@@ -0,0 +1,126 @@
+/*
+ * 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.
+ * Copyright (C) 2010 Research In Motion Limited. 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 <stdint.h>
+#include <string.h>
+#include <time.h>
+#include <wtf/CurrentTime.h>
+#include <wtf/Noncopyable.h>
+#include <wtf/OwnArrayPtr.h>
+#include <wtf/PassOwnArrayPtr.h>
+#include <wtf/text/WTFString.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 parseES5DateFromNullTerminatedCharacters(const char* dateString);
+double parseDateFromNullTerminatedCharacters(const char* dateString);
+double parseDateFromNullTerminatedCharacters(const char* dateString, bool& haveTZ, int& offset);
+double timeClip(double);
+// dayOfWeek: [0, 6] 0 being Monday, day: [1, 31], month: [0, 11], year: ex: 2011, hours: [0, 23], minutes: [0, 59], seconds: [0, 59], utcOffset: [-720,720]. 
+String makeRFC2822DateString(unsigned dayOfWeek, unsigned day, unsigned month, unsigned year, unsigned hours, unsigned minutes, unsigned seconds, int utcOffset);
+
+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;
+
+bool isLeapYear(int year);
+
+// 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);
+double msToDays(double ms);
+int msToMinutes(double ms);
+int msToHours(double ms);
+int dayInYear(double ms, int year);
+int monthFromDayInYear(int dayInYear, bool leapYear);
+int dayInMonthFromDayInYear(int dayInYear, bool leapYear);
+
+// Returns offset milliseconds for UTC and DST.
+int32_t calculateUTCOffset();
+double calculateDSTOffset(double ms, double utcOffset);
+
+} // namespace WTF
+
+using WTF::isLeapYear;
+using WTF::dateToDaysFrom1970;
+using WTF::dayInMonthFromDayInYear;
+using WTF::dayInYear;
+using WTF::minutesPerHour;
+using WTF::monthFromDayInYear;
+using WTF::msPerDay;
+using WTF::msPerMinute;
+using WTF::msPerSecond;
+using WTF::msToYear;
+using WTF::msToDays;
+using WTF::msToMinutes;
+using WTF::msToHours;
+using WTF::secondsPerMinute;
+using WTF::parseDateFromNullTerminatedCharacters;
+using WTF::makeRFC2822DateString;
+using WTF::calculateUTCOffset;
+using WTF::calculateDSTOffset;
+
+#endif // DateMath_h