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/* -*- Mode: java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
package org.mozilla.javascript;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.TimeZone;
/**
* This class implements the Date native object. See ECMA 15.9.
*
* @author Mike McCabe
* Significant parts of this code are adapted from the venerable jsdate.cpp (also Mozilla):
* https://dxr.mozilla.org/mozilla-central/source/js/src/jsdate.cpp
*/
final class NativeDate extends IdScriptableObject {
private static final long serialVersionUID = -8307438915861678966L;
private static final Object DATE_TAG = "Date";
private static final String js_NaN_date_str = "Invalid Date";
static void init(Scriptable scope, boolean sealed) {
NativeDate obj = new NativeDate();
// Set the value of the prototype Date to NaN ('invalid date');
obj.date = ScriptRuntime.NaN;
obj.exportAsJSClass(MAX_PROTOTYPE_ID, scope, sealed);
}
private NativeDate() {}
@Override
public String getClassName() {
return "Date";
}
@Override
public Object getDefaultValue(Class typeHint) {
if (typeHint == null) typeHint = ScriptRuntime.StringClass;
return super.getDefaultValue(typeHint);
}
double getJSTimeValue() {
return date;
}
@Override
protected void fillConstructorProperties(IdFunctionObject ctor) {
addIdFunctionProperty(ctor, DATE_TAG, ConstructorId_now, "now", 0);
addIdFunctionProperty(ctor, DATE_TAG, ConstructorId_parse, "parse", 1);
addIdFunctionProperty(ctor, DATE_TAG, ConstructorId_UTC, "UTC", 7);
super.fillConstructorProperties(ctor);
}
@Override
protected void initPrototypeId(int id) {
String s;
int arity;
switch (id) {
case Id_constructor:
arity = 7;
s = "constructor";
break;
case Id_toString:
arity = 0;
s = "toString";
break;
case Id_toTimeString:
arity = 0;
s = "toTimeString";
break;
case Id_toDateString:
arity = 0;
s = "toDateString";
break;
case Id_toLocaleString:
arity = 0;
s = "toLocaleString";
break;
case Id_toLocaleTimeString:
arity = 0;
s = "toLocaleTimeString";
break;
case Id_toLocaleDateString:
arity = 0;
s = "toLocaleDateString";
break;
case Id_toUTCString:
arity = 0;
s = "toUTCString";
break;
case Id_toSource:
arity = 0;
s = "toSource";
break;
case Id_valueOf:
arity = 0;
s = "valueOf";
break;
case Id_getTime:
arity = 0;
s = "getTime";
break;
case Id_getYear:
arity = 0;
s = "getYear";
break;
case Id_getFullYear:
arity = 0;
s = "getFullYear";
break;
case Id_getUTCFullYear:
arity = 0;
s = "getUTCFullYear";
break;
case Id_getMonth:
arity = 0;
s = "getMonth";
break;
case Id_getUTCMonth:
arity = 0;
s = "getUTCMonth";
break;
case Id_getDate:
arity = 0;
s = "getDate";
break;
case Id_getUTCDate:
arity = 0;
s = "getUTCDate";
break;
case Id_getDay:
arity = 0;
s = "getDay";
break;
case Id_getUTCDay:
arity = 0;
s = "getUTCDay";
break;
case Id_getHours:
arity = 0;
s = "getHours";
break;
case Id_getUTCHours:
arity = 0;
s = "getUTCHours";
break;
case Id_getMinutes:
arity = 0;
s = "getMinutes";
break;
case Id_getUTCMinutes:
arity = 0;
s = "getUTCMinutes";
break;
case Id_getSeconds:
arity = 0;
s = "getSeconds";
break;
case Id_getUTCSeconds:
arity = 0;
s = "getUTCSeconds";
break;
case Id_getMilliseconds:
arity = 0;
s = "getMilliseconds";
break;
case Id_getUTCMilliseconds:
arity = 0;
s = "getUTCMilliseconds";
break;
case Id_getTimezoneOffset:
arity = 0;
s = "getTimezoneOffset";
break;
case Id_setTime:
arity = 1;
s = "setTime";
break;
case Id_setMilliseconds:
arity = 1;
s = "setMilliseconds";
break;
case Id_setUTCMilliseconds:
arity = 1;
s = "setUTCMilliseconds";
break;
case Id_setSeconds:
arity = 2;
s = "setSeconds";
break;
case Id_setUTCSeconds:
arity = 2;
s = "setUTCSeconds";
break;
case Id_setMinutes:
arity = 3;
s = "setMinutes";
break;
case Id_setUTCMinutes:
arity = 3;
s = "setUTCMinutes";
break;
case Id_setHours:
arity = 4;
s = "setHours";
break;
case Id_setUTCHours:
arity = 4;
s = "setUTCHours";
break;
case Id_setDate:
arity = 1;
s = "setDate";
break;
case Id_setUTCDate:
arity = 1;
s = "setUTCDate";
break;
case Id_setMonth:
arity = 2;
s = "setMonth";
break;
case Id_setUTCMonth:
arity = 2;
s = "setUTCMonth";
break;
case Id_setFullYear:
arity = 3;
s = "setFullYear";
break;
case Id_setUTCFullYear:
arity = 3;
s = "setUTCFullYear";
break;
case Id_setYear:
arity = 1;
s = "setYear";
break;
case Id_toISOString:
arity = 0;
s = "toISOString";
break;
case Id_toJSON:
arity = 1;
s = "toJSON";
break;
default:
throw new IllegalArgumentException(String.valueOf(id));
}
initPrototypeMethod(DATE_TAG, id, s, arity);
}
@Override
public Object execIdCall(
IdFunctionObject f, Context cx, Scriptable scope, Scriptable thisObj, Object[] args) {
if (!f.hasTag(DATE_TAG)) {
return super.execIdCall(f, cx, scope, thisObj, args);
}
int id = f.methodId();
switch (id) {
case ConstructorId_now:
return ScriptRuntime.wrapNumber(now());
case ConstructorId_parse:
{
String dataStr = ScriptRuntime.toString(args, 0);
return ScriptRuntime.wrapNumber(date_parseString(dataStr));
}
case ConstructorId_UTC:
return ScriptRuntime.wrapNumber(jsStaticFunction_UTC(args));
case Id_constructor:
{
// if called as a function, just return a string
// representing the current time.
if (thisObj != null) return date_format(now(), Id_toString);
return jsConstructor(args);
}
case Id_toJSON:
{
final String toISOString = "toISOString";
Scriptable o = ScriptRuntime.toObject(cx, scope, thisObj);
Object tv = ScriptRuntime.toPrimitive(o, ScriptRuntime.NumberClass);
if (tv instanceof Number) {
double d = ((Number) tv).doubleValue();
if (Double.isNaN(d) || Double.isInfinite(d)) {
return null;
}
}
Object toISO = ScriptableObject.getProperty(o, toISOString);
if (toISO == NOT_FOUND) {
throw ScriptRuntime.typeErrorById(
"msg.function.not.found.in",
toISOString,
ScriptRuntime.toString(o));
}
if (!(toISO instanceof Callable)) {
throw ScriptRuntime.typeErrorById(
"msg.isnt.function.in",
toISOString,
ScriptRuntime.toString(o),
ScriptRuntime.toString(toISO));
}
Object result = ((Callable) toISO).call(cx, scope, o, ScriptRuntime.emptyArgs);
if (!ScriptRuntime.isPrimitive(result)) {
throw ScriptRuntime.typeErrorById(
"msg.toisostring.must.return.primitive",
ScriptRuntime.toString(result));
}
return result;
}
}
// The rest of Date.prototype methods require thisObj to be Date
NativeDate realThis = ensureType(thisObj, NativeDate.class, f);
double t = realThis.date;
switch (id) {
case Id_toString:
case Id_toTimeString:
case Id_toDateString:
if (!Double.isNaN(t)) {
return date_format(t, id);
}
return js_NaN_date_str;
case Id_toLocaleString:
case Id_toLocaleTimeString:
case Id_toLocaleDateString:
if (!Double.isNaN(t)) {
return toLocale_helper(t, id);
}
return js_NaN_date_str;
case Id_toUTCString:
if (!Double.isNaN(t)) {
return js_toUTCString(t);
}
return js_NaN_date_str;
case Id_toSource:
return "(new Date(" + ScriptRuntime.toString(t) + "))";
case Id_valueOf:
case Id_getTime:
return ScriptRuntime.wrapNumber(t);
case Id_getYear:
case Id_getFullYear:
case Id_getUTCFullYear:
if (!Double.isNaN(t)) {
if (id != Id_getUTCFullYear) t = LocalTime(t);
t = YearFromTime(t);
if (id == Id_getYear) {
if (cx.hasFeature(Context.FEATURE_NON_ECMA_GET_YEAR)) {
if (1900 <= t && t < 2000) {
t -= 1900;
}
} else {
t -= 1900;
}
}
}
return ScriptRuntime.wrapNumber(t);
case Id_getMonth:
case Id_getUTCMonth:
if (!Double.isNaN(t)) {
if (id == Id_getMonth) t = LocalTime(t);
t = MonthFromTime(t);
}
return ScriptRuntime.wrapNumber(t);
case Id_getDate:
case Id_getUTCDate:
if (!Double.isNaN(t)) {
if (id == Id_getDate) t = LocalTime(t);
t = DateFromTime(t);
}
return ScriptRuntime.wrapNumber(t);
case Id_getDay:
case Id_getUTCDay:
if (!Double.isNaN(t)) {
if (id == Id_getDay) t = LocalTime(t);
t = WeekDay(t);
}
return ScriptRuntime.wrapNumber(t);
case Id_getHours:
case Id_getUTCHours:
if (!Double.isNaN(t)) {
if (id == Id_getHours) t = LocalTime(t);
t = HourFromTime(t);
}
return ScriptRuntime.wrapNumber(t);
case Id_getMinutes:
case Id_getUTCMinutes:
if (!Double.isNaN(t)) {
if (id == Id_getMinutes) t = LocalTime(t);
t = MinFromTime(t);
}
return ScriptRuntime.wrapNumber(t);
case Id_getSeconds:
case Id_getUTCSeconds:
if (!Double.isNaN(t)) {
if (id == Id_getSeconds) t = LocalTime(t);
t = SecFromTime(t);
}
return ScriptRuntime.wrapNumber(t);
case Id_getMilliseconds:
case Id_getUTCMilliseconds:
if (!Double.isNaN(t)) {
if (id == Id_getMilliseconds) t = LocalTime(t);
t = msFromTime(t);
}
return ScriptRuntime.wrapNumber(t);
case Id_getTimezoneOffset:
if (!Double.isNaN(t)) {
t = (t - LocalTime(t)) / msPerMinute;
}
return ScriptRuntime.wrapNumber(t);
case Id_setTime:
t = TimeClip(ScriptRuntime.toNumber(args, 0));
realThis.date = t;
return ScriptRuntime.wrapNumber(t);
case Id_setMilliseconds:
case Id_setUTCMilliseconds:
case Id_setSeconds:
case Id_setUTCSeconds:
case Id_setMinutes:
case Id_setUTCMinutes:
case Id_setHours:
case Id_setUTCHours:
t = makeTime(t, args, id);
realThis.date = t;
return ScriptRuntime.wrapNumber(t);
case Id_setDate:
case Id_setUTCDate:
case Id_setMonth:
case Id_setUTCMonth:
case Id_setFullYear:
case Id_setUTCFullYear:
t = makeDate(t, args, id);
realThis.date = t;
return ScriptRuntime.wrapNumber(t);
case Id_setYear:
{
double year = ScriptRuntime.toNumber(args, 0);
if (Double.isNaN(year) || Double.isInfinite(year)) {
t = ScriptRuntime.NaN;
} else {
if (Double.isNaN(t)) {
t = 0;
} else {
t = LocalTime(t);
}
if (year >= 0 && year <= 99) year += 1900;
double day = MakeDay(year, MonthFromTime(t), DateFromTime(t));
t = MakeDate(day, TimeWithinDay(t));
t = internalUTC(t);
t = TimeClip(t);
}
}
realThis.date = t;
return ScriptRuntime.wrapNumber(t);
case Id_toISOString:
if (!Double.isNaN(t)) {
return js_toISOString(t);
}
String msg = ScriptRuntime.getMessageById("msg.invalid.date");
throw ScriptRuntime.rangeError(msg);
default:
throw new IllegalArgumentException(String.valueOf(id));
}
}
/* ECMA helper functions */
private static final double HalfTimeDomain = 8.64e15;
private static final double HoursPerDay = 24.0;
private static final double MinutesPerHour = 60.0;
private static final double SecondsPerMinute = 60.0;
private static final double msPerSecond = 1000.0;
private static final double MinutesPerDay = (HoursPerDay * MinutesPerHour);
private static final double SecondsPerDay = (MinutesPerDay * SecondsPerMinute);
private static final double SecondsPerHour = (MinutesPerHour * SecondsPerMinute);
private static final double msPerDay = (SecondsPerDay * msPerSecond);
private static final double msPerHour = (SecondsPerHour * msPerSecond);
private static final double msPerMinute = (SecondsPerMinute * msPerSecond);
private static double Day(double t) {
return Math.floor(t / msPerDay);
}
private static double TimeWithinDay(double t) {
double result;
result = t % msPerDay;
if (result < 0) result += msPerDay;
return result;
}
private static boolean IsLeapYear(int year) {
return year % 4 == 0 && (year % 100 != 0 || year % 400 == 0);
}
/* math here has to be f.p, because we need
* floor((1968 - 1969) / 4) == -1
*/
private static double DayFromYear(double y) {
return ((365 * ((y) - 1970)
+ Math.floor(((y) - 1969) / 4.0)
- Math.floor(((y) - 1901) / 100.0)
+ Math.floor(((y) - 1601) / 400.0)));
}
private static double TimeFromYear(double y) {
return DayFromYear(y) * msPerDay;
}
private static int YearFromTime(double t) {
if (Double.isInfinite(t) || Double.isNaN(t)) {
return 0;
}
double y = Math.floor(t / (msPerDay * 365.2425)) + 1970;
double t2 = TimeFromYear(y);
/*
* Adjust the year if the approximation was wrong. Since the year was
* computed using the average number of ms per year, it will usually
* be wrong for dates within several hours of a year transition.
*/
if (t2 > t) {
y--;
} else {
if (t2 + msPerDay * DaysInYear(y) <= t) y++;
}
return (int) y;
}
private static double DayFromMonth(int m, int year) {
int day = m * 30;
if (m >= 7) {
day += m / 2 - 1;
} else if (m >= 2) {
day += (m - 1) / 2 - 1;
} else {
day += m;
}
if (m >= 2 && IsLeapYear(year)) {
++day;
}
return day;
}
private static double DaysInYear(double year) {
if (Double.isInfinite(year) || Double.isNaN(year)) {
return ScriptRuntime.NaN;
}
return IsLeapYear((int) year) ? 366.0 : 365.0;
}
private static int DaysInMonth(int year, int month) {
// month is 1-based for DaysInMonth!
if (month == 2) return IsLeapYear(year) ? 29 : 28;
return month >= 8 ? 31 - (month & 1) : 30 + (month & 1);
}
private static int MonthFromTime(double t) {
int year = YearFromTime(t);
int d = (int) (Day(t) - DayFromYear(year));
d -= 31 + 28;
if (d < 0) {
return (d < -28) ? 0 : 1;
}
if (IsLeapYear(year)) {
if (d == 0) return 1; // 29 February
--d;
}
// d: date count from 1 March
int estimate = d / 30; // approx number of month since March
int mstart;
switch (estimate) {
case 0:
return 2;
case 1:
mstart = 31;
break;
case 2:
mstart = 31 + 30;
break;
case 3:
mstart = 31 + 30 + 31;
break;
case 4:
mstart = 31 + 30 + 31 + 30;
break;
case 5:
mstart = 31 + 30 + 31 + 30 + 31;
break;
case 6:
mstart = 31 + 30 + 31 + 30 + 31 + 31;
break;
case 7:
mstart = 31 + 30 + 31 + 30 + 31 + 31 + 30;
break;
case 8:
mstart = 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31;
break;
case 9:
mstart = 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30;
break;
case 10:
return 11; // Late december
default:
throw Kit.codeBug();
}
// if d < mstart then real month since March == estimate - 1
return (d >= mstart) ? estimate + 2 : estimate + 1;
}
private static int DateFromTime(double t) {
int year = YearFromTime(t);
int d = (int) (Day(t) - DayFromYear(year));
d -= 31 + 28;
if (d < 0) {
return (d < -28) ? d + 31 + 28 + 1 : d + 28 + 1;
}
if (IsLeapYear(year)) {
if (d == 0) return 29; // 29 February
--d;
}
// d: date count from 1 March
int mdays, mstart;
switch (d / 30) { // approx number of month since March
case 0:
return d + 1;
case 1:
mdays = 31;
mstart = 31;
break;
case 2:
mdays = 30;
mstart = 31 + 30;
break;
case 3:
mdays = 31;
mstart = 31 + 30 + 31;
break;
case 4:
mdays = 30;
mstart = 31 + 30 + 31 + 30;
break;
case 5:
mdays = 31;
mstart = 31 + 30 + 31 + 30 + 31;
break;
case 6:
mdays = 31;
mstart = 31 + 30 + 31 + 30 + 31 + 31;
break;
case 7:
mdays = 30;
mstart = 31 + 30 + 31 + 30 + 31 + 31 + 30;
break;
case 8:
mdays = 31;
mstart = 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31;
break;
case 9:
mdays = 30;
mstart = 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30;
break;
case 10:
return d - (31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30) + 1; // Late december
default:
throw Kit.codeBug();
}
d -= mstart;
if (d < 0) {
// wrong estimate: sfhift to previous month
d += mdays;
}
return d + 1;
}
private static int WeekDay(double t) {
double result;
result = Day(t) + 4;
result = result % 7;
if (result < 0) result += 7;
return (int) result;
}
private static double now() {
return System.currentTimeMillis();
}
private static double DaylightSavingTA(double t) {
// Another workaround! The JRE doesn't seem to know about DST
// before year 1 AD, so we map to equivalent dates for the
// purposes of finding DST. To be safe, we do this for years
// before 1970.
if (t < 0.0) {
int year = EquivalentYear(YearFromTime(t));
double day = MakeDay(year, MonthFromTime(t), DateFromTime(t));
t = MakeDate(day, TimeWithinDay(t));
}
Date date = new Date((long) t);
if (thisTimeZone.inDaylightTime(date)) return msPerHour;
return 0;
}
/*
* Find a year for which any given date will fall on the same weekday.
*
* This function should be used with caution when used other than
* for determining DST; it hasn't been proven not to produce an
* incorrect year for times near year boundaries.
*/
private static int EquivalentYear(int year) {
int day = (int) DayFromYear(year) + 4;
day = day % 7;
if (day < 0) day += 7;
// Years and leap years on which Jan 1 is a Sunday, Monday, etc.
if (IsLeapYear(year)) {
switch (day) {
case 0:
return 1984;
case 1:
return 1996;
case 2:
return 1980;
case 3:
return 1992;
case 4:
return 1976;
case 5:
return 1988;
case 6:
return 1972;
}
} else {
switch (day) {
case 0:
return 1978;
case 1:
return 1973;
case 2:
return 1985;
case 3:
return 1986;
case 4:
return 1981;
case 5:
return 1971;
case 6:
return 1977;
}
}
// Unreachable
throw Kit.codeBug();
}
private static double LocalTime(double t) {
return t + LocalTZA + DaylightSavingTA(t);
}
private static double internalUTC(double t) {
return t - LocalTZA - DaylightSavingTA(t - LocalTZA);
}
private static int HourFromTime(double t) {
double result;
result = Math.floor(t / msPerHour) % HoursPerDay;
if (result < 0) result += HoursPerDay;
return (int) result;
}
private static int MinFromTime(double t) {
double result;
result = Math.floor(t / msPerMinute) % MinutesPerHour;
if (result < 0) result += MinutesPerHour;
return (int) result;
}
private static int SecFromTime(double t) {
double result;
result = Math.floor(t / msPerSecond) % SecondsPerMinute;
if (result < 0) result += SecondsPerMinute;
return (int) result;
}
private static int msFromTime(double t) {
double result;
result = t % msPerSecond;
if (result < 0) result += msPerSecond;
return (int) result;
}
private static double MakeTime(double hour, double min, double sec, double ms) {
return ((hour * MinutesPerHour + min) * SecondsPerMinute + sec) * msPerSecond + ms;
}
private static double MakeDay(double year, double month, double date) {
year += Math.floor(month / 12);
month = month % 12;
if (month < 0) month += 12;
double yearday = Math.floor(TimeFromYear(year) / msPerDay);
double monthday = DayFromMonth((int) month, (int) year);
return yearday + monthday + date - 1;
}
private static double MakeDate(double day, double time) {
return day * msPerDay + time;
}
private static double TimeClip(double d) {
if (Double.isNaN(d)
|| d == Double.POSITIVE_INFINITY
|| d == Double.NEGATIVE_INFINITY
|| Math.abs(d) > HalfTimeDomain) {
return ScriptRuntime.NaN;
}
if (d > 0.0) return Math.floor(d + 0.);
return Math.ceil(d + 0.);
}
/* end of ECMA helper functions */
/* find UTC time from given date... no 1900 correction! */
private static double date_msecFromDate(
double year,
double mon,
double mday,
double hour,
double min,
double sec,
double msec) {
double day;
double time;
double result;
day = MakeDay(year, mon, mday);
time = MakeTime(hour, min, sec, msec);
result = MakeDate(day, time);
return result;
}
/* compute the time in msec (unclipped) from the given args */
private static final int MAXARGS = 7;
private static double date_msecFromArgs(Object[] args) {
double array[] = new double[MAXARGS];
int loop;
double d;
for (loop = 0; loop < MAXARGS; loop++) {
if (loop < args.length) {
d = ScriptRuntime.toNumber(args[loop]);
if (Double.isNaN(d) || Double.isInfinite(d)) {
return ScriptRuntime.NaN;
}
array[loop] = ScriptRuntime.toInteger(args[loop]);
} else {
if (loop == 2) {
array[loop] = 1; /* Default the date argument to 1. */
} else {
array[loop] = 0;
}
}
}
/* adjust 2-digit years into the 20th century */
if (array[0] >= 0 && array[0] <= 99) array[0] += 1900;
return date_msecFromDate(
array[0], array[1], array[2], array[3], array[4], array[5], array[6]);
}
private static double jsStaticFunction_UTC(Object[] args) {
if (args.length == 0) {
return ScriptRuntime.NaN;
}
return TimeClip(date_msecFromArgs(args));
}
/**
* 15.9.1.15 Date Time String Format
* Parse input string according to simplified ISO-8601 Extended Format:
*
*
* YYYY-MM-DD'T'HH:mm:ss.sss'Z'
* - or
YYYY-MM-DD'T'HH:mm:ss.sss[+-]hh:mm
*
*/
private static double parseISOString(String s) {
// we use a simple state machine to parse the input string
final int ERROR = -1;
final int YEAR = 0, MONTH = 1, DAY = 2;
final int HOUR = 3, MIN = 4, SEC = 5, MSEC = 6;
final int TZHOUR = 7, TZMIN = 8;
int state = YEAR;
// default values per [15.9.1.15 Date Time String Format]
int[] values = {1970, 1, 1, 0, 0, 0, 0, -1, -1};
int yearlen = 4, yearmod = 1, tzmod = 1;
int i = 0, len = s.length();
if (len != 0) {
char c = s.charAt(0);
if (c == '+' || c == '-') {
// 15.9.1.15.1 Extended years
i += 1;
yearlen = 6;
yearmod = (c == '-') ? -1 : 1;
} else if (c == 'T') {
// time-only forms no longer in spec, but follow spidermonkey here
i += 1;
state = HOUR;
}
}
loop:
while (state != ERROR) {
int m = i + (state == YEAR ? yearlen : state == MSEC ? 3 : 2);
if (m > len) {
state = ERROR;
break;
}
int value = 0;
for (; i < m; ++i) {
char c = s.charAt(i);
if (c < '0' || c > '9') {
state = ERROR;
break loop;
}
value = 10 * value + (c - '0');
}
values[state] = value;
if (i == len) {
// reached EOF, check for end state
switch (state) {
case HOUR:
case TZHOUR:
state = ERROR;
}
break;
}
char c = s.charAt(i++);
if (c == 'Z') {
// handle abbrevation for UTC timezone
values[TZHOUR] = 0;
values[TZMIN] = 0;
switch (state) {
case MIN:
case SEC:
case MSEC:
break;
default:
state = ERROR;
}
break;
}
// state transition
switch (state) {
case YEAR:
case MONTH:
state = (c == '-' ? state + 1 : c == 'T' ? HOUR : ERROR);
break;
case DAY:
state = (c == 'T' ? HOUR : ERROR);
break;
case HOUR:
state = (c == ':' ? MIN : ERROR);
break;
case TZHOUR:
// state = (c == ':' ? state + 1 : ERROR);
// Non-standard extension, https://bugzilla.mozilla.org/show_bug.cgi?id=682754
if (c != ':') {
// back off by one and try to read without ':' separator
i -= 1;
}
state = TZMIN;
break;
case MIN:
state = (c == ':' ? SEC : c == '+' || c == '-' ? TZHOUR : ERROR);
break;
case SEC:
state = (c == '.' ? MSEC : c == '+' || c == '-' ? TZHOUR : ERROR);
break;
case MSEC:
state = (c == '+' || c == '-' ? TZHOUR : ERROR);
break;
case TZMIN:
state = ERROR;
break;
}
if (state == TZHOUR) {
// save timezone modificator
tzmod = (c == '-') ? -1 : 1;
}
}
syntax:
{
// error or unparsed characters
if (state == ERROR || i != len) break syntax;
// check values
int year = values[YEAR], month = values[MONTH], day = values[DAY];
int hour = values[HOUR], min = values[MIN], sec = values[SEC], msec = values[MSEC];
int tzhour = values[TZHOUR], tzmin = values[TZMIN];
if (year > 275943 // ceil(1e8/365) + 1970 = 275943
|| (month < 1 || month > 12)
|| (day < 1 || day > DaysInMonth(year, month))
|| hour > 24
|| (hour == 24 && (min > 0 || sec > 0 || msec > 0))
|| min > 59
|| sec > 59
|| tzhour > 23
|| tzmin > 59) {
break syntax;
}
// valid ISO-8601 format, compute date in milliseconds
double date = date_msecFromDate(year * yearmod, month - 1, day, hour, min, sec, msec);
if (tzhour == -1) {
// Spec says to use UTC timezone, the following bug report says
// that local timezone was meant to be used. Stick with spec for now.
// https://bugs.ecmascript.org/show_bug.cgi?id=112
// date = internalUTC(date);
} else {
date -= (tzhour * 60 + tzmin) * msPerMinute * tzmod;
}
if (date < -HalfTimeDomain || date > HalfTimeDomain) break syntax;
return date;
}
// invalid ISO-8601 format, return NaN
return ScriptRuntime.NaN;
}
private static double date_parseString(String s) {
double d = parseISOString(s);
if (!Double.isNaN(d)) {
return d;
}
int year = -1;
int mon = -1;
int mday = -1;
int hour = -1;
int min = -1;
int sec = -1;
char c = 0;
char si = 0;
int i = 0;
int n = -1;
double tzoffset = -1;
char prevc = 0;
int limit = 0;
boolean seenplusminus = false;
limit = s.length();
while (i < limit) {
c = s.charAt(i);
i++;
if (c <= ' ' || c == ',' || c == '-') {
if (i < limit) {
si = s.charAt(i);
if (c == '-' && '0' <= si && si <= '9') {
prevc = c;
}
}
continue;
}
if (c == '(') {
/* comments) */
int depth = 1;
while (i < limit) {
c = s.charAt(i);
i++;
if (c == '(') depth++;
else if (c == ')') if (--depth <= 0) break;
}
continue;
}
if ('0' <= c && c <= '9') {
n = c - '0';
while (i < limit && '0' <= (c = s.charAt(i)) && c <= '9') {
n = n * 10 + c - '0';
i++;
}
/* allow TZA before the year, so
* 'Wed Nov 05 21:49:11 GMT-0800 1997'
* works */
/* uses of seenplusminus allow : in TZA, so Java
* no-timezone style of GMT+4:30 works
*/
if ((prevc == '+' || prevc == '-') /* && year>=0 */) {
/* make ':' case below change tzoffset */
seenplusminus = true;
/* offset */
if (n < 24) n = n * 60; /* EG. "GMT-3" */
else n = n % 100 + n / 100 * 60; /* eg "GMT-0430" */
if (prevc == '+') /* plus means east of GMT */ n = -n;
if (tzoffset != 0 && tzoffset != -1) return ScriptRuntime.NaN;
tzoffset = n;
} else if (n >= 70 || (prevc == '/' && mon >= 0 && mday >= 0 && year < 0)) {
if (year >= 0) return ScriptRuntime.NaN;
else if (c <= ' ' || c == ',' || c == '/' || i >= limit)
year = n < 100 ? n + 1900 : n;
else return ScriptRuntime.NaN;
} else if (c == ':') {
if (hour < 0) hour = /*byte*/ n;
else if (min < 0) min = /*byte*/ n;
else return ScriptRuntime.NaN;
} else if (c == '/') {
if (mon < 0) mon = /*byte*/ n - 1;
else if (mday < 0) mday = /*byte*/ n;
else return ScriptRuntime.NaN;
} else if (i < limit && c != ',' && c > ' ' && c != '-') {
return ScriptRuntime.NaN;
} else if (seenplusminus && n < 60) {
/* handle GMT-3:30 */
if (tzoffset < 0) tzoffset -= n;
else tzoffset += n;
} else if (hour >= 0 && min < 0) {
min = /*byte*/ n;
} else if (min >= 0 && sec < 0) {
sec = /*byte*/ n;
} else if (mday < 0) {
mday = /*byte*/ n;
} else {
return ScriptRuntime.NaN;
}
prevc = 0;
} else if (c == '/' || c == ':' || c == '+' || c == '-') {
prevc = c;
} else {
int st = i - 1;
while (i < limit) {
c = s.charAt(i);
if (!(('A' <= c && c <= 'Z') || ('a' <= c && c <= 'z'))) break;
i++;
}
int letterCount = i - st;
if (letterCount < 2) return ScriptRuntime.NaN;
/*
* Use ported code from jsdate.c rather than the locale-specific
* date-parsing code from Java, to keep js and rhino consistent.
* Is this the right strategy?
*/
String wtb =
"am;pm;"
+ "monday;tuesday;wednesday;thursday;friday;"
+ "saturday;sunday;"
+ "january;february;march;april;may;june;"
+ "july;august;september;october;november;december;"
+ "gmt;ut;utc;est;edt;cst;cdt;mst;mdt;pst;pdt;";
int index = 0;
for (int wtbOffset = 0; ; ) {
int wtbNext = wtb.indexOf(';', wtbOffset);
if (wtbNext < 0) return ScriptRuntime.NaN;
if (wtb.regionMatches(true, wtbOffset, s, st, letterCount)) break;
wtbOffset = wtbNext + 1;
++index;
}
if (index < 2) {
/*
* AM/PM. Count 12:30 AM as 00:30, 12:30 PM as
* 12:30, instead of blindly adding 12 if PM.
*/
if (hour > 12 || hour < 0) {
return ScriptRuntime.NaN;
} else if (index == 0) {
// AM
if (hour == 12) hour = 0;
} else {
// PM
if (hour != 12) hour += 12;
}
} else if ((index -= 2) < 7) {
// ignore week days
} else if ((index -= 7) < 12) {
// month
if (mon < 0) {
mon = index;
} else {
return ScriptRuntime.NaN;
}
} else {
index -= 12;
// timezones
switch (index) {
case 0 /* gmt */:
tzoffset = 0;
break;
case 1 /* ut */:
tzoffset = 0;
break;
case 2 /* utc */:
tzoffset = 0;
break;
case 3 /* est */:
tzoffset = 5 * 60;
break;
case 4 /* edt */:
tzoffset = 4 * 60;
break;
case 5 /* cst */:
tzoffset = 6 * 60;
break;
case 6 /* cdt */:
tzoffset = 5 * 60;
break;
case 7 /* mst */:
tzoffset = 7 * 60;
break;
case 8 /* mdt */:
tzoffset = 6 * 60;
break;
case 9 /* pst */:
tzoffset = 8 * 60;
break;
case 10 /* pdt */:
tzoffset = 7 * 60;
break;
default:
Kit.codeBug();
}
}
}
}
if (year < 0 || mon < 0 || mday < 0) return ScriptRuntime.NaN;
if (sec < 0) sec = 0;
if (min < 0) min = 0;
if (hour < 0) hour = 0;
double msec = date_msecFromDate(year, mon, mday, hour, min, sec, 0);
if (tzoffset == -1) {
/* no time zone specified, have to use local */
return internalUTC(msec);
}
return msec + tzoffset * msPerMinute;
}
private static String date_format(double t, int methodId) {
StringBuilder result = new StringBuilder(60);
double local = LocalTime(t);
/* Tue Oct 31 09:41:40 GMT-0800 (PST) 2000 */
/* Tue Oct 31 2000 */
/* 09:41:40 GMT-0800 (PST) */
if (methodId != Id_toTimeString) {
appendWeekDayName(result, WeekDay(local));
result.append(' ');
appendMonthName(result, MonthFromTime(local));
result.append(' ');
append0PaddedUint(result, DateFromTime(local), 2);
result.append(' ');
int year = YearFromTime(local);
if (year < 0) {
result.append('-');
year = -year;
}
append0PaddedUint(result, year, 4);
if (methodId != Id_toDateString) result.append(' ');
}
if (methodId != Id_toDateString) {
append0PaddedUint(result, HourFromTime(local), 2);
result.append(':');
append0PaddedUint(result, MinFromTime(local), 2);
result.append(':');
append0PaddedUint(result, SecFromTime(local), 2);
// offset from GMT in minutes. The offset includes daylight
// savings, if it applies.
int minutes = (int) Math.floor((LocalTZA + DaylightSavingTA(t)) / msPerMinute);
// map 510 minutes to 0830 hours
int offset = (minutes / 60) * 100 + minutes % 60;
if (offset > 0) {
result.append(" GMT+");
} else {
result.append(" GMT-");
offset = -offset;
}
append0PaddedUint(result, offset, 4);
// Find an equivalent year before getting the timezone
// comment. See DaylightSavingTA.
if (t < 0.0) {
int equiv = EquivalentYear(YearFromTime(local));
double day = MakeDay(equiv, MonthFromTime(t), DateFromTime(t));
t = MakeDate(day, TimeWithinDay(t));
}
result.append(" (");
Date date = new Date((long) t);
synchronized (timeZoneFormatter) {
result.append(timeZoneFormatter.format(date));
}
result.append(')');
}
return result.toString();
}
/* the javascript constructor */
private static Object jsConstructor(Object[] args) {
NativeDate obj = new NativeDate();
// if called as a constructor with no args,
// return a new Date with the current time.
if (args.length == 0) {
obj.date = now();
return obj;
}
// if called with just one arg -
if (args.length == 1) {
Object arg0 = args[0];
if (arg0 instanceof NativeDate) {
obj.date = ((NativeDate) arg0).date;
return obj;
}
if (arg0 instanceof Scriptable) {
arg0 = ((Scriptable) arg0).getDefaultValue(null);
}
double date;
if (arg0 instanceof CharSequence) {
// it's a string; parse it.
date = date_parseString(arg0.toString());
} else {
// if it's not a string, use it as a millisecond date
date = ScriptRuntime.toNumber(arg0);
}
obj.date = TimeClip(date);
return obj;
}
double time = date_msecFromArgs(args);
if (!Double.isNaN(time) && !Double.isInfinite(time)) time = TimeClip(internalUTC(time));
obj.date = time;
return obj;
}
private static String toLocale_helper(double t, int methodId) {
DateFormat formatter;
switch (methodId) {
case Id_toLocaleString:
formatter = localeDateTimeFormatter;
break;
case Id_toLocaleTimeString:
formatter = localeTimeFormatter;
break;
case Id_toLocaleDateString:
formatter = localeDateFormatter;
break;
default:
throw new AssertionError(); // unreachable
}
synchronized (formatter) {
return formatter.format(new Date((long) t));
}
}
private static String js_toUTCString(double date) {
StringBuilder result = new StringBuilder(60);
appendWeekDayName(result, WeekDay(date));
result.append(", ");
append0PaddedUint(result, DateFromTime(date), 2);
result.append(' ');
appendMonthName(result, MonthFromTime(date));
result.append(' ');
int year = YearFromTime(date);
if (year < 0) {
result.append('-');
year = -year;
}
append0PaddedUint(result, year, 4);
result.append(' ');
append0PaddedUint(result, HourFromTime(date), 2);
result.append(':');
append0PaddedUint(result, MinFromTime(date), 2);
result.append(':');
append0PaddedUint(result, SecFromTime(date), 2);
result.append(" GMT");
return result.toString();
}
private static String js_toISOString(double t) {
StringBuilder result = new StringBuilder(27);
int year = YearFromTime(t);
if (year < 0) {
result.append('-');
append0PaddedUint(result, -year, 6);
} else if (year > 9999) {
result.append('+');
append0PaddedUint(result, year, 6);
} else {
append0PaddedUint(result, year, 4);
}
result.append('-');
append0PaddedUint(result, MonthFromTime(t) + 1, 2);
result.append('-');
append0PaddedUint(result, DateFromTime(t), 2);
result.append('T');
append0PaddedUint(result, HourFromTime(t), 2);
result.append(':');
append0PaddedUint(result, MinFromTime(t), 2);
result.append(':');
append0PaddedUint(result, SecFromTime(t), 2);
result.append('.');
append0PaddedUint(result, msFromTime(t), 3);
result.append('Z');
return result.toString();
}
private static void append0PaddedUint(StringBuilder sb, int i, int minWidth) {
if (i < 0) Kit.codeBug();
int scale = 1;
--minWidth;
if (i >= 10) {
if (i < 1000 * 1000 * 1000) {
for (; ; ) {
int newScale = scale * 10;
if (i < newScale) {
break;
}
--minWidth;
scale = newScale;
}
} else {
// Separated case not to check against 10 * 10^9 overflow
minWidth -= 9;
scale = 1000 * 1000 * 1000;
}
}
while (minWidth > 0) {
sb.append('0');
--minWidth;
}
while (scale != 1) {
sb.append((char) ('0' + (i / scale)));
i %= scale;
scale /= 10;
}
sb.append((char) ('0' + i));
}
private static void appendMonthName(StringBuilder sb, int index) {
// Take advantage of the fact that all month abbreviations
// have the same length to minimize amount of strings runtime has
// to keep in memory
String months =
"Jan" + "Feb" + "Mar" + "Apr" + "May" + "Jun" + "Jul" + "Aug" + "Sep" + "Oct"
+ "Nov" + "Dec";
index *= 3;
for (int i = 0; i != 3; ++i) {
sb.append(months.charAt(index + i));
}
}
private static void appendWeekDayName(StringBuilder sb, int index) {
String days = "Sun" + "Mon" + "Tue" + "Wed" + "Thu" + "Fri" + "Sat";
index *= 3;
for (int i = 0; i != 3; ++i) {
sb.append(days.charAt(index + i));
}
}
private static double makeTime(double date, Object[] args, int methodId) {
if (args.length == 0) {
/*
* Satisfy the ECMA rule that if a function is called with
* fewer arguments than the specified formal arguments, the
* remaining arguments are set to undefined. Seems like all
* the Date.setWhatever functions in ECMA are only varargs
* beyond the first argument; this should be set to undefined
* if it's not given. This means that "d = new Date();
* d.setMilliseconds()" returns NaN. Blech.
*/
return ScriptRuntime.NaN;
}
int maxargs;
boolean local = true;
switch (methodId) {
case Id_setUTCMilliseconds:
local = false;
// fallthrough
case Id_setMilliseconds:
maxargs = 1;
break;
case Id_setUTCSeconds:
local = false;
// fallthrough
case Id_setSeconds:
maxargs = 2;
break;
case Id_setUTCMinutes:
local = false;
// fallthrough
case Id_setMinutes:
maxargs = 3;
break;
case Id_setUTCHours:
local = false;
// fallthrough
case Id_setHours:
maxargs = 4;
break;
default:
throw Kit.codeBug();
}
boolean hasNaN = false;
int numNums = args.length < maxargs ? args.length : maxargs;
assert numNums <= 4;
double[] nums = new double[4];
for (int i = 0; i < numNums; i++) {
double d = ScriptRuntime.toNumber(args[i]);
if (Double.isNaN(d) || Double.isInfinite(d)) {
hasNaN = true;
} else {
nums[i] = ScriptRuntime.toInteger(d);
}
}
// just return NaN if the date is already NaN,
// limit checks that happen in MakeTime in ECMA.
if (hasNaN || Double.isNaN(date)) {
return ScriptRuntime.NaN;
}
int i = 0, stop = numNums;
double hour, min, sec, msec;
double lorutime; /* Local or UTC version of date */
if (local) lorutime = LocalTime(date);
else lorutime = date;
if (maxargs >= 4 && i < stop) hour = nums[i++];
else hour = HourFromTime(lorutime);
if (maxargs >= 3 && i < stop) min = nums[i++];
else min = MinFromTime(lorutime);
if (maxargs >= 2 && i < stop) sec = nums[i++];
else sec = SecFromTime(lorutime);
if (maxargs >= 1 && i < stop) msec = nums[i++];
else msec = msFromTime(lorutime);
double time = MakeTime(hour, min, sec, msec);
double result = MakeDate(Day(lorutime), time);
if (local) result = internalUTC(result);
return TimeClip(result);
}
private static double makeDate(double date, Object[] args, int methodId) {
/* see complaint about ECMA in date_MakeTime */
if (args.length == 0) {
return ScriptRuntime.NaN;
}
int maxargs;
boolean local = true;
switch (methodId) {
case Id_setUTCDate:
local = false;
// fallthrough
case Id_setDate:
maxargs = 1;
break;
case Id_setUTCMonth:
local = false;
// fallthrough
case Id_setMonth:
maxargs = 2;
break;
case Id_setUTCFullYear:
local = false;
// fallthrough
case Id_setFullYear:
maxargs = 3;
break;
default:
throw Kit.codeBug();
}
boolean hasNaN = false;
int numNums = args.length < maxargs ? args.length : maxargs;
assert 1 <= numNums && numNums <= 3;
double[] nums = new double[3];
for (int i = 0; i < numNums; i++) {
double d = ScriptRuntime.toNumber(args[i]);
if (Double.isNaN(d) || Double.isInfinite(d)) {
hasNaN = true;
} else {
nums[i] = ScriptRuntime.toInteger(d);
}
}
// limit checks that happen in MakeTime in ECMA.
if (hasNaN) {
return ScriptRuntime.NaN;
}
int i = 0, stop = numNums;
double year, month, day;
double lorutime; /* Local or UTC version of date */
/* return NaN if date is NaN and we're not setting the year,
* If we are, use 0 as the time. */
if (Double.isNaN(date)) {
if (maxargs < 3) {
return ScriptRuntime.NaN;
}
lorutime = 0;
} else {
if (local) lorutime = LocalTime(date);
else lorutime = date;
}
if (maxargs >= 3 && i < stop) year = nums[i++];
else year = YearFromTime(lorutime);
if (maxargs >= 2 && i < stop) month = nums[i++];
else month = MonthFromTime(lorutime);
if (maxargs >= 1 && i < stop) day = nums[i++];
else day = DateFromTime(lorutime);
day = MakeDay(year, month, day); /* day within year */
double result = MakeDate(day, TimeWithinDay(lorutime));
if (local) result = internalUTC(result);
return TimeClip(result);
}
@Override
protected int findPrototypeId(String s) {
int id;
switch (s) {
case "constructor":
id = Id_constructor;
break;
case "toString":
id = Id_toString;
break;
case "toTimeString":
id = Id_toTimeString;
break;
case "toDateString":
id = Id_toDateString;
break;
case "toLocaleString":
id = Id_toLocaleString;
break;
case "toLocaleTimeString":
id = Id_toLocaleTimeString;
break;
case "toLocaleDateString":
id = Id_toLocaleDateString;
break;
case "toUTCString":
id = Id_toUTCString;
break;
case "toSource":
id = Id_toSource;
break;
case "valueOf":
id = Id_valueOf;
break;
case "getTime":
id = Id_getTime;
break;
case "getYear":
id = Id_getYear;
break;
case "getFullYear":
id = Id_getFullYear;
break;
case "getUTCFullYear":
id = Id_getUTCFullYear;
break;
case "getMonth":
id = Id_getMonth;
break;
case "getUTCMonth":
id = Id_getUTCMonth;
break;
case "getDate":
id = Id_getDate;
break;
case "getUTCDate":
id = Id_getUTCDate;
break;
case "getDay":
id = Id_getDay;
break;
case "getUTCDay":
id = Id_getUTCDay;
break;
case "getHours":
id = Id_getHours;
break;
case "getUTCHours":
id = Id_getUTCHours;
break;
case "getMinutes":
id = Id_getMinutes;
break;
case "getUTCMinutes":
id = Id_getUTCMinutes;
break;
case "getSeconds":
id = Id_getSeconds;
break;
case "getUTCSeconds":
id = Id_getUTCSeconds;
break;
case "getMilliseconds":
id = Id_getMilliseconds;
break;
case "getUTCMilliseconds":
id = Id_getUTCMilliseconds;
break;
case "getTimezoneOffset":
id = Id_getTimezoneOffset;
break;
case "setTime":
id = Id_setTime;
break;
case "setMilliseconds":
id = Id_setMilliseconds;
break;
case "setUTCMilliseconds":
id = Id_setUTCMilliseconds;
break;
case "setSeconds":
id = Id_setSeconds;
break;
case "setUTCSeconds":
id = Id_setUTCSeconds;
break;
case "setMinutes":
id = Id_setMinutes;
break;
case "setUTCMinutes":
id = Id_setUTCMinutes;
break;
case "setHours":
id = Id_setHours;
break;
case "setUTCHours":
id = Id_setUTCHours;
break;
case "setDate":
id = Id_setDate;
break;
case "setUTCDate":
id = Id_setUTCDate;
break;
case "setMonth":
id = Id_setMonth;
break;
case "setUTCMonth":
id = Id_setUTCMonth;
break;
case "setFullYear":
id = Id_setFullYear;
break;
case "setUTCFullYear":
id = Id_setUTCFullYear;
break;
case "setYear":
id = Id_setYear;
break;
case "toISOString":
id = Id_toISOString;
break;
case "toJSON":
id = Id_toJSON;
break;
case "toGMTString":
id = Id_toGMTString;
break;
default:
id = 0;
break;
}
return id;
}
private static final int ConstructorId_now = -3,
ConstructorId_parse = -2,
ConstructorId_UTC = -1,
Id_constructor = 1,
Id_toString = 2,
Id_toTimeString = 3,
Id_toDateString = 4,
Id_toLocaleString = 5,
Id_toLocaleTimeString = 6,
Id_toLocaleDateString = 7,
Id_toUTCString = 8,
Id_toSource = 9,
Id_valueOf = 10,
Id_getTime = 11,
Id_getYear = 12,
Id_getFullYear = 13,
Id_getUTCFullYear = 14,
Id_getMonth = 15,
Id_getUTCMonth = 16,
Id_getDate = 17,
Id_getUTCDate = 18,
Id_getDay = 19,
Id_getUTCDay = 20,
Id_getHours = 21,
Id_getUTCHours = 22,
Id_getMinutes = 23,
Id_getUTCMinutes = 24,
Id_getSeconds = 25,
Id_getUTCSeconds = 26,
Id_getMilliseconds = 27,
Id_getUTCMilliseconds = 28,
Id_getTimezoneOffset = 29,
Id_setTime = 30,
Id_setMilliseconds = 31,
Id_setUTCMilliseconds = 32,
Id_setSeconds = 33,
Id_setUTCSeconds = 34,
Id_setMinutes = 35,
Id_setUTCMinutes = 36,
Id_setHours = 37,
Id_setUTCHours = 38,
Id_setDate = 39,
Id_setUTCDate = 40,
Id_setMonth = 41,
Id_setUTCMonth = 42,
Id_setFullYear = 43,
Id_setUTCFullYear = 44,
Id_setYear = 45,
Id_toISOString = 46,
Id_toJSON = 47,
MAX_PROTOTYPE_ID = Id_toJSON;
private static final int Id_toGMTString = Id_toUTCString; // Alias, see Ecma B.2.6
/* cached values */
private static final TimeZone thisTimeZone = TimeZone.getDefault();
private static final double LocalTZA = thisTimeZone.getRawOffset();
// not thread safe
private static final DateFormat timeZoneFormatter = new SimpleDateFormat("zzz");
private static final DateFormat localeDateTimeFormatter =
new SimpleDateFormat("MMMM d, yyyy h:mm:ss a z");
private static final DateFormat localeDateFormatter = new SimpleDateFormat("MMMM d, yyyy");
private static final DateFormat localeTimeFormatter = new SimpleDateFormat("h:mm:ss a z");
private double date;
}