static EncodedJSValue JSC_HOST_CALL dateUTC(ExecState* exec)
{
double doubleArguments[7] = {
exec->argument(0).toNumber(exec),
exec->argument(1).toNumber(exec),
exec->argument(2).toNumber(exec),
exec->argument(3).toNumber(exec),
exec->argument(4).toNumber(exec),
exec->argument(5).toNumber(exec),
exec->argument(6).toNumber(exec)
};
int n = exec->argumentCount();
if (isnan(doubleArguments[0])
|| isnan(doubleArguments[1])
|| (n >= 3 && isnan(doubleArguments[2]))
|| (n >= 4 && isnan(doubleArguments[3]))
|| (n >= 5 && isnan(doubleArguments[4]))
|| (n >= 6 && isnan(doubleArguments[5]))
|| (n >= 7 && isnan(doubleArguments[6])))
return JSValue::encode(jsNaN());
GregorianDateTime t;
int year = JSC::toInt32(doubleArguments[0]);
t.setYear((year >= 0 && year <= 99) ? (year + 1900) : year);
t.setMonth(JSC::toInt32(doubleArguments[1]));
t.setMonthDay((n >= 3) ? JSC::toInt32(doubleArguments[2]) : 1);
t.setHour(JSC::toInt32(doubleArguments[3]));
t.setMinute(JSC::toInt32(doubleArguments[4]));
t.setSecond(JSC::toInt32(doubleArguments[5]));
double ms = (n >= 7) ? doubleArguments[6] : 0;
return JSValue::encode(jsNumber(timeClip(gregorianDateTimeToMS(exec, t, ms, true))));
}
static JSValue setNewValueFromTimeArgs(ExecState* exec, JSValue thisValue, const ArgList& args, int numArgsToUse, bool inputIsUTC)
{
if (!thisValue.isObject(&DateInstance::info))
return throwError(exec, TypeError);
DateInstance* thisDateObj = asDateInstance(thisValue);
double milli = thisDateObj->internalNumber();
if (args.isEmpty() || isnan(milli)) {
JSValue result = jsNaN(exec);
thisDateObj->setInternalValue(result);
return result;
}
double secs = floor(milli / msPerSecond);
double ms = milli - secs * msPerSecond;
GregorianDateTime t;
thisDateObj->msToGregorianDateTime(milli, inputIsUTC, t);
if (!fillStructuresUsingTimeArgs(exec, args, numArgsToUse, &ms, &t)) {
JSValue result = jsNaN(exec);
thisDateObj->setInternalValue(result);
return result;
}
JSValue result = jsNumber(exec, gregorianDateTimeToMS(t, ms, inputIsUTC));
thisDateObj->setInternalValue(result);
return result;
}
static double millisecondsFromComponents(ExecState* exec, const ArgList& args, WTF::TimeType timeType)
{
double doubleArguments[] = {
args.at(0).toNumber(exec),
args.at(1).toNumber(exec),
args.at(2).toNumber(exec),
args.at(3).toNumber(exec),
args.at(4).toNumber(exec),
args.at(5).toNumber(exec),
args.at(6).toNumber(exec)
};
int numArgs = args.size();
if ((!std::isfinite(doubleArguments[0]) || (doubleArguments[0] > INT_MAX) || (doubleArguments[0] < INT_MIN))
|| (!std::isfinite(doubleArguments[1]) || (doubleArguments[1] > INT_MAX) || (doubleArguments[1] < INT_MIN))
|| (numArgs >= 3 && (!std::isfinite(doubleArguments[2]) || (doubleArguments[2] > INT_MAX) || (doubleArguments[2] < INT_MIN)))
|| (numArgs >= 4 && (!std::isfinite(doubleArguments[3]) || (doubleArguments[3] > INT_MAX) || (doubleArguments[3] < INT_MIN)))
|| (numArgs >= 5 && (!std::isfinite(doubleArguments[4]) || (doubleArguments[4] > INT_MAX) || (doubleArguments[4] < INT_MIN)))
|| (numArgs >= 6 && (!std::isfinite(doubleArguments[5]) || (doubleArguments[5] > INT_MAX) || (doubleArguments[5] < INT_MIN)))
|| (numArgs >= 7 && (!std::isfinite(doubleArguments[6]) || (doubleArguments[6] > INT_MAX) || (doubleArguments[6] < INT_MIN))))
return PNaN;
GregorianDateTime t;
int year = JSC::toInt32(doubleArguments[0]);
t.setYear((year >= 0 && year <= 99) ? (year + 1900) : year);
t.setMonth(JSC::toInt32(doubleArguments[1]));
t.setMonthDay((numArgs >= 3) ? JSC::toInt32(doubleArguments[2]) : 1);
t.setHour(JSC::toInt32(doubleArguments[3]));
t.setMinute(JSC::toInt32(doubleArguments[4]));
t.setSecond(JSC::toInt32(doubleArguments[5]));
t.setIsDST(-1);
double ms = (numArgs >= 7) ? doubleArguments[6] : 0;
return gregorianDateTimeToMS(exec->vm(), t, ms, timeType);
}
// ECMA 15.9.3
JSObject* constructDate(ExecState* exec, JSGlobalObject* globalObject, const ArgList& args)
{
VM& vm = exec->vm();
int numArgs = args.size();
double value;
if (numArgs == 0) // new Date() ECMA 15.9.3.3
value = jsCurrentTime();
else if (numArgs == 1) {
if (args.at(0).inherits(DateInstance::info()))
value = asDateInstance(args.at(0))->internalNumber();
else {
JSValue primitive = args.at(0).toPrimitive(exec);
if (primitive.isString())
value = parseDate(vm, primitive.getString(exec));
else
value = primitive.toNumber(exec);
}
} else {
double doubleArguments[7] = {
args.at(0).toNumber(exec),
args.at(1).toNumber(exec),
args.at(2).toNumber(exec),
args.at(3).toNumber(exec),
args.at(4).toNumber(exec),
args.at(5).toNumber(exec),
args.at(6).toNumber(exec)
};
if (!std::isfinite(doubleArguments[0])
|| !std::isfinite(doubleArguments[1])
|| (numArgs >= 3 && !std::isfinite(doubleArguments[2]))
|| (numArgs >= 4 && !std::isfinite(doubleArguments[3]))
|| (numArgs >= 5 && !std::isfinite(doubleArguments[4]))
|| (numArgs >= 6 && !std::isfinite(doubleArguments[5]))
|| (numArgs >= 7 && !std::isfinite(doubleArguments[6])))
value = QNaN;
else {
GregorianDateTime t;
int year = JSC::toInt32(doubleArguments[0]);
t.setYear((year >= 0 && year <= 99) ? (year + 1900) : year);
t.setMonth(JSC::toInt32(doubleArguments[1]));
t.setMonthDay((numArgs >= 3) ? JSC::toInt32(doubleArguments[2]) : 1);
t.setHour(JSC::toInt32(doubleArguments[3]));
t.setMinute(JSC::toInt32(doubleArguments[4]));
t.setSecond(JSC::toInt32(doubleArguments[5]));
t.setIsDST(-1);
double ms = (numArgs >= 7) ? doubleArguments[6] : 0;
value = gregorianDateTimeToMS(vm, t, ms, false);
}
}
return DateInstance::create(vm, globalObject->dateStructure(), value);
}
// ECMA 15.9.3
JSObject* constructDate(ExecState* exec, JSGlobalObject* globalObject, const ArgList& args)
{
int numArgs = args.size();
double value;
if (numArgs == 0) // new Date() ECMA 15.9.3.3
value = jsCurrentTime();
else if (numArgs == 1) {
if (args.at(0).inherits(&DateInstance::s_info))
value = asDateInstance(args.at(0))->internalNumber();
else {
JSValue primitive = args.at(0).toPrimitive(exec);
if (primitive.isString())
value = parseDate(exec, primitive.getString(exec));
else
value = primitive.toNumber(exec);
}
} else {
double doubleArguments[7] = {
args.at(0).toNumber(exec),
args.at(1).toNumber(exec),
args.at(2).toNumber(exec),
args.at(3).toNumber(exec),
args.at(4).toNumber(exec),
args.at(5).toNumber(exec),
args.at(6).toNumber(exec)
};
if (isnan(doubleArguments[0])
|| isnan(doubleArguments[1])
|| (numArgs >= 3 && isnan(doubleArguments[2]))
|| (numArgs >= 4 && isnan(doubleArguments[3]))
|| (numArgs >= 5 && isnan(doubleArguments[4]))
|| (numArgs >= 6 && isnan(doubleArguments[5]))
|| (numArgs >= 7 && isnan(doubleArguments[6])))
value = NaN;
else {
GregorianDateTime t;
int year = JSC::toInt32(doubleArguments[0]);
t.year = (year >= 0 && year <= 99) ? year : year - 1900;
t.month = JSC::toInt32(doubleArguments[1]);
t.monthDay = (numArgs >= 3) ? JSC::toInt32(doubleArguments[2]) : 1;
t.hour = JSC::toInt32(doubleArguments[3]);
t.minute = JSC::toInt32(doubleArguments[4]);
t.second = JSC::toInt32(doubleArguments[5]);
t.isDST = -1;
double ms = (numArgs >= 7) ? doubleArguments[6] : 0;
value = gregorianDateTimeToMS(exec, t, ms, false);
}
}
return new (exec) DateInstance(exec, globalObject->dateStructure(), value);
}
// ECMA 15.9.3
JSObject* constructDate(ExecState* exec, const ArgList& args)
{
int numArgs = args.size();
double value;
if (numArgs == 0) // new Date() ECMA 15.9.3.3
value = getCurrentUTCTime();
else if (numArgs == 1) {
if (args.at(exec, 0)->isObject(&DateInstance::info))
value = asDateInstance(args.at(exec, 0))->internalNumber();
else {
JSValue* primitive = args.at(exec, 0)->toPrimitive(exec);
if (primitive->isString())
value = parseDate(primitive->getString());
else
value = primitive->toNumber(exec);
}
} else {
if (isnan(args.at(exec, 0)->toNumber(exec))
|| isnan(args.at(exec, 1)->toNumber(exec))
|| (numArgs >= 3 && isnan(args.at(exec, 2)->toNumber(exec)))
|| (numArgs >= 4 && isnan(args.at(exec, 3)->toNumber(exec)))
|| (numArgs >= 5 && isnan(args.at(exec, 4)->toNumber(exec)))
|| (numArgs >= 6 && isnan(args.at(exec, 5)->toNumber(exec)))
|| (numArgs >= 7 && isnan(args.at(exec, 6)->toNumber(exec))))
value = NaN;
else {
GregorianDateTime t;
int year = args.at(exec, 0)->toInt32(exec);
t.year = (year >= 0 && year <= 99) ? year : year - 1900;
t.month = args.at(exec, 1)->toInt32(exec);
t.monthDay = (numArgs >= 3) ? args.at(exec, 2)->toInt32(exec) : 1;
t.hour = args.at(exec, 3)->toInt32(exec);
t.minute = args.at(exec, 4)->toInt32(exec);
t.second = args.at(exec, 5)->toInt32(exec);
t.isDST = -1;
double ms = (numArgs >= 7) ? args.at(exec, 6)->toNumber(exec) : 0;
value = gregorianDateTimeToMS(t, ms, false);
}
}
DateInstance* result = new (exec) DateInstance(exec->lexicalGlobalObject()->dateStructure());
result->setInternalValue(jsNumber(exec, timeClip(value)));
return result;
}
// ECMA 15.9.3
AJObject* constructDate(ExecState* exec, const ArgList& args)
{
int numArgs = args.size();
double value;
if (numArgs == 0) // new Date() ECMA 15.9.3.3
value = jsCurrentTime();
else if (numArgs == 1) {
if (args.at(0).inherits(&DateInstance::info))
value = asDateInstance(args.at(0))->internalNumber();
else {
AJValue primitive = args.at(0).toPrimitive(exec);
if (primitive.isString())
value = parseDate(exec, primitive.getString(exec));
else
value = primitive.toNumber(exec);
}
} else {
if (isnan(args.at(0).toNumber(exec))
|| isnan(args.at(1).toNumber(exec))
|| (numArgs >= 3 && isnan(args.at(2).toNumber(exec)))
|| (numArgs >= 4 && isnan(args.at(3).toNumber(exec)))
|| (numArgs >= 5 && isnan(args.at(4).toNumber(exec)))
|| (numArgs >= 6 && isnan(args.at(5).toNumber(exec)))
|| (numArgs >= 7 && isnan(args.at(6).toNumber(exec))))
value = NaN;
else {
GregorianDateTime t;
int year = args.at(0).toInt32(exec);
t.year = (year >= 0 && year <= 99) ? year : year - 1900;
t.month = args.at(1).toInt32(exec);
t.monthDay = (numArgs >= 3) ? args.at(2).toInt32(exec) : 1;
t.hour = args.at(3).toInt32(exec);
t.minute = args.at(4).toInt32(exec);
t.second = args.at(5).toInt32(exec);
t.isDST = -1;
double ms = (numArgs >= 7) ? args.at(6).toNumber(exec) : 0;
value = gregorianDateTimeToMS(exec, t, ms, false);
}
}
return new (exec) DateInstance(exec, value);
}
EncodedJSValue JSC_HOST_CALL dateProtoFuncSetYear(ExecState* exec)
{
JSValue thisValue = exec->thisValue();
if (!thisValue.inherits(DateInstance::info()))
return throwVMTypeError(exec);
VM& vm = exec->vm();
DateInstance* thisDateObj = asDateInstance(thisValue);
if (!exec->argumentCount()) {
JSValue result = jsNaN();
thisDateObj->setInternalValue(vm, result);
return JSValue::encode(result);
}
double milli = thisDateObj->internalNumber();
double ms = 0;
GregorianDateTime gregorianDateTime;
if (std::isnan(milli))
// Based on ECMA 262 B.2.5 (setYear)
// the time must be reset to +0 if it is NaN.
msToGregorianDateTime(vm, 0, true, gregorianDateTime);
else {
double secs = floor(milli / msPerSecond);
ms = milli - secs * msPerSecond;
if (const GregorianDateTime* other = thisDateObj->gregorianDateTime(exec))
gregorianDateTime.copyFrom(*other);
}
double year = exec->argument(0).toIntegerPreserveNaN(exec);
if (!std::isfinite(year)) {
JSValue result = jsNaN();
thisDateObj->setInternalValue(vm, result);
return JSValue::encode(result);
}
gregorianDateTime.setYear(toInt32((year >= 0 && year <= 99) ? (year + 1900) : year));
JSValue result = jsNumber(gregorianDateTimeToMS(vm, gregorianDateTime, ms, false));
thisDateObj->setInternalValue(vm, result);
return JSValue::encode(result);
}
JSValue JSC_HOST_CALL dateProtoFuncSetYear(ExecState* exec, JSObject*, JSValue thisValue, const ArgList& args)
{
if (!thisValue.isObject(&DateInstance::info))
return throwError(exec, TypeError);
const bool utc = false;
DateInstance* thisDateObj = asDateInstance(thisValue);
if (args.isEmpty()) {
JSValue result = jsNaN(exec);
thisDateObj->setInternalValue(result);
return result;
}
double milli = thisDateObj->internalNumber();
double ms = 0;
GregorianDateTime t;
if (isnan(milli))
// Based on ECMA 262 B.2.5 (setYear)
// the time must be reset to +0 if it is NaN.
thisDateObj->msToGregorianDateTime(0, true, t);
else {
double secs = floor(milli / msPerSecond);
ms = milli - secs * msPerSecond;
thisDateObj->msToGregorianDateTime(milli, utc, t);
}
bool ok = true;
int32_t year = args.at(0).toInt32(exec, ok);
if (!ok) {
JSValue result = jsNaN(exec);
thisDateObj->setInternalValue(result);
return result;
}
t.year = (year > 99 || year < 0) ? year - 1900 : year;
JSValue result = jsNumber(exec, gregorianDateTimeToMS(t, ms, utc));
thisDateObj->setInternalValue(result);
return result;
}
EncodedJSValue JSC_HOST_CALL dateProtoFuncSetYear(ExecState* exec)
{
JSValue thisValue = exec->hostThisValue();
if (!thisValue.inherits(&DateInstance::info))
return throwVMTypeError(exec);
DateInstance* thisDateObj = asDateInstance(thisValue);
if (!exec->argumentCount()) {
JSValue result = jsNaN(exec);
thisDateObj->setInternalValue(result);
return JSValue::encode(result);
}
double milli = thisDateObj->internalNumber();
double ms = 0;
GregorianDateTime gregorianDateTime;
if (isnan(milli))
// Based on ECMA 262 B.2.5 (setYear)
// the time must be reset to +0 if it is NaN.
msToGregorianDateTime(exec, 0, true, gregorianDateTime);
else {
double secs = floor(milli / msPerSecond);
ms = milli - secs * msPerSecond;
if (const GregorianDateTime* other = thisDateObj->gregorianDateTime(exec))
gregorianDateTime.copyFrom(*other);
}
bool ok = true;
int32_t year = exec->argument(0).toInt32(exec, ok);
if (!ok) {
JSValue result = jsNaN(exec);
thisDateObj->setInternalValue(result);
return JSValue::encode(result);
}
gregorianDateTime.year = (year > 99 || year < 0) ? year - 1900 : year;
JSValue result = jsNumber(exec, gregorianDateTimeToMS(exec, gregorianDateTime, ms, false));
thisDateObj->setInternalValue(result);
return JSValue::encode(result);
}
static EncodedJSValue setNewValueFromDateArgs(ExecState* exec, int numArgsToUse, bool inputIsUTC)
{
JSValue thisValue = exec->thisValue();
if (!thisValue.inherits(DateInstance::info()))
return throwVMTypeError(exec);
DateInstance* thisDateObj = asDateInstance(thisValue);
if (!exec->argumentCount()) {
JSValue result = jsNaN();
thisDateObj->setInternalValue(exec->vm(), result);
return JSValue::encode(result);
}
VM& vm = exec->vm();
double milli = thisDateObj->internalNumber();
double ms = 0;
GregorianDateTime gregorianDateTime;
if (numArgsToUse == 3 && std::isnan(milli))
msToGregorianDateTime(vm, 0, true, gregorianDateTime);
else {
ms = milli - floor(milli / msPerSecond) * msPerSecond;
const GregorianDateTime* other = inputIsUTC
? thisDateObj->gregorianDateTimeUTC(exec)
: thisDateObj->gregorianDateTime(exec);
if (!other)
return JSValue::encode(jsNaN());
gregorianDateTime.copyFrom(*other);
}
if (!fillStructuresUsingDateArgs(exec, numArgsToUse, &ms, &gregorianDateTime)) {
JSValue result = jsNaN();
thisDateObj->setInternalValue(vm, result);
return JSValue::encode(result);
}
JSValue result = jsNumber(gregorianDateTimeToMS(vm, gregorianDateTime, ms, inputIsUTC));
thisDateObj->setInternalValue(vm, result);
return JSValue::encode(result);
}
static JSValue* dateUTC(ExecState* exec, JSObject*, JSValue*, const ArgList& args)
{
int n = args.size();
if (isnan(args.at(exec, 0)->toNumber(exec))
|| isnan(args.at(exec, 1)->toNumber(exec))
|| (n >= 3 && isnan(args.at(exec, 2)->toNumber(exec)))
|| (n >= 4 && isnan(args.at(exec, 3)->toNumber(exec)))
|| (n >= 5 && isnan(args.at(exec, 4)->toNumber(exec)))
|| (n >= 6 && isnan(args.at(exec, 5)->toNumber(exec)))
|| (n >= 7 && isnan(args.at(exec, 6)->toNumber(exec))))
return jsNaN(exec);
GregorianDateTime t;
int year = args.at(exec, 0)->toInt32(exec);
t.year = (year >= 0 && year <= 99) ? year : year - 1900;
t.month = args.at(exec, 1)->toInt32(exec);
t.monthDay = (n >= 3) ? args.at(exec, 2)->toInt32(exec) : 1;
t.hour = args.at(exec, 3)->toInt32(exec);
t.minute = args.at(exec, 4)->toInt32(exec);
t.second = args.at(exec, 5)->toInt32(exec);
double ms = (n >= 7) ? args.at(exec, 6)->toNumber(exec) : 0;
return jsNumber(exec, gregorianDateTimeToMS(t, ms, true));
}
static AJValue JSC_HOST_CALL dateUTC(ExecState* exec, AJObject*, AJValue, const ArgList& args)
{
int n = args.size();
if (isnan(args.at(0).toNumber(exec))
|| isnan(args.at(1).toNumber(exec))
|| (n >= 3 && isnan(args.at(2).toNumber(exec)))
|| (n >= 4 && isnan(args.at(3).toNumber(exec)))
|| (n >= 5 && isnan(args.at(4).toNumber(exec)))
|| (n >= 6 && isnan(args.at(5).toNumber(exec)))
|| (n >= 7 && isnan(args.at(6).toNumber(exec))))
return jsNaN(exec);
GregorianDateTime t;
int year = args.at(0).toInt32(exec);
t.year = (year >= 0 && year <= 99) ? year : year - 1900;
t.month = args.at(1).toInt32(exec);
t.monthDay = (n >= 3) ? args.at(2).toInt32(exec) : 1;
t.hour = args.at(3).toInt32(exec);
t.minute = args.at(4).toInt32(exec);
t.second = args.at(5).toInt32(exec);
double ms = (n >= 7) ? args.at(6).toNumber(exec) : 0;
return jsNumber(exec, timeClip(gregorianDateTimeToMS(exec, t, ms, true)));
}
static EncodedJSValue setNewValueFromTimeArgs(ExecState* exec, int numArgsToUse, bool inputIsUTC)
{
JSValue thisValue = exec->hostThisValue();
if (!thisValue.inherits(&DateInstance::s_info))
return throwVMTypeError(exec);
DateInstance* thisDateObj = asDateInstance(thisValue);
double milli = thisDateObj->internalNumber();
if (!exec->argumentCount() || isnan(milli)) {
JSValue result = jsNaN();
thisDateObj->setInternalValue(exec->globalData(), result);
return JSValue::encode(result);
}
double secs = floor(milli / msPerSecond);
double ms = milli - secs * msPerSecond;
const GregorianDateTime* other = inputIsUTC
? thisDateObj->gregorianDateTimeUTC(exec)
: thisDateObj->gregorianDateTime(exec);
if (!other)
return JSValue::encode(jsNaN());
GregorianDateTime gregorianDateTime;
gregorianDateTime.copyFrom(*other);
if (!fillStructuresUsingTimeArgs(exec, numArgsToUse, &ms, &gregorianDateTime)) {
JSValue result = jsNaN();
thisDateObj->setInternalValue(exec->globalData(), result);
return JSValue::encode(result);
}
JSValue result = jsNumber(gregorianDateTimeToMS(exec, gregorianDateTime, ms, inputIsUTC));
thisDateObj->setInternalValue(exec->globalData(), result);
return JSValue::encode(result);
}
static JSValue setNewValueFromDateArgs(ExecState* exec, JSValue thisValue, const ArgList& args, int numArgsToUse, bool inputIsUTC)
{
if (!thisValue.isObject(&DateInstance::info))
return throwError(exec, TypeError);
DateInstance* thisDateObj = asDateInstance(thisValue);
if (args.isEmpty()) {
JSValue result = jsNaN(exec);
thisDateObj->setInternalValue(result);
return result;
}
double milli = thisDateObj->internalNumber();
double ms = 0;
GregorianDateTime t;
if (numArgsToUse == 3 && isnan(milli))
// Based on ECMA 262 15.9.5.40 - .41 (set[UTC]FullYear)
// the time must be reset to +0 if it is NaN.
thisDateObj->msToGregorianDateTime(0, true, t);
else {
double secs = floor(milli / msPerSecond);
ms = milli - secs * msPerSecond;
thisDateObj->msToGregorianDateTime(milli, inputIsUTC, t);
}
if (!fillStructuresUsingDateArgs(exec, args, numArgsToUse, &ms, &t)) {
JSValue result = jsNaN(exec);
thisDateObj->setInternalValue(result);
return result;
}
JSValue result = jsNumber(exec, gregorianDateTimeToMS(t, ms, inputIsUTC));
thisDateObj->setInternalValue(result);
return result;
}
double parseDateFromNullTerminatedCharacters(const char* dateString)
{
// This parses a date in the form:
// Tuesday, 09-Nov-99 23:12:40 GMT
// or
// Sat, 01-Jan-2000 08:00:00 GMT
// or
// Sat, 01 Jan 2000 08:00:00 GMT
// or
// 01 Jan 99 22:00 +0100 (exceptions in rfc822/rfc2822)
// ### non RFC formats, added for Javascript:
// [Wednesday] January 09 1999 23:12:40 GMT
// [Wednesday] January 09 23:12:40 GMT 1999
//
// We ignore the weekday.
// Skip leading space
skipSpacesAndComments(dateString);
long month = -1;
const char *wordStart = dateString;
// Check contents of first words if not number
while (*dateString && !isASCIIDigit(*dateString)) {
if (isASCIISpace(*dateString) || *dateString == '(') {
if (dateString - wordStart >= 3)
month = findMonth(wordStart);
skipSpacesAndComments(dateString);
wordStart = dateString;
} else
dateString++;
}
// Missing delimiter between month and day (like "January29")?
if (month == -1 && wordStart != dateString)
month = findMonth(wordStart);
skipSpacesAndComments(dateString);
if (!*dateString)
return NaN;
// ' 09-Nov-99 23:12:40 GMT'
char* newPosStr;
long day;
if (!parseLong(dateString, &newPosStr, 10, &day))
return NaN;
dateString = newPosStr;
if (!*dateString)
return NaN;
if (day < 0)
return NaN;
long year = 0;
if (day > 31) {
// ### where is the boundary and what happens below?
if (*dateString != '/')
return NaN;
// looks like a YYYY/MM/DD date
if (!*++dateString)
return NaN;
year = day;
if (!parseLong(dateString, &newPosStr, 10, &month))
return NaN;
month -= 1;
dateString = newPosStr;
if (*dateString++ != '/' || !*dateString)
return NaN;
if (!parseLong(dateString, &newPosStr, 10, &day))
return NaN;
dateString = newPosStr;
} else if (*dateString == '/' && month == -1) {
dateString++;
// This looks like a MM/DD/YYYY date, not an RFC date.
month = day - 1; // 0-based
if (!parseLong(dateString, &newPosStr, 10, &day))
return NaN;
if (day < 1 || day > 31)
return NaN;
dateString = newPosStr;
if (*dateString == '/')
dateString++;
if (!*dateString)
return NaN;
} else {
if (*dateString == '-')
dateString++;
skipSpacesAndComments(dateString);
if (*dateString == ',')
dateString++;
if (month == -1) { // not found yet
month = findMonth(dateString);
if (month == -1)
return NaN;
while (*dateString && *dateString != '-' && *dateString != ',' && !isASCIISpace(*dateString))
dateString++;
if (!*dateString)
return NaN;
// '-99 23:12:40 GMT'
if (*dateString != '-' && *dateString != '/' && *dateString != ',' && !isASCIISpace(*dateString))
return NaN;
dateString++;
}
}
if (month < 0 || month > 11)
return NaN;
// '99 23:12:40 GMT'
if (year <= 0 && *dateString) {
if (!parseLong(dateString, &newPosStr, 10, &year))
return NaN;
}
// Don't fail if the time is missing.
long hour = 0;
long minute = 0;
long second = 0;
if (!*newPosStr)
dateString = newPosStr;
else {
// ' 23:12:40 GMT'
if (!(isASCIISpace(*newPosStr) || *newPosStr == ',')) {
if (*newPosStr != ':')
return NaN;
// There was no year; the number was the hour.
year = -1;
} else {
// in the normal case (we parsed the year), advance to the next number
dateString = ++newPosStr;
skipSpacesAndComments(dateString);
}
parseLong(dateString, &newPosStr, 10, &hour);
// Do not check for errno here since we want to continue
// even if errno was set becasue we are still looking
// for the timezone!
// Read a number? If not, this might be a timezone name.
if (newPosStr != dateString) {
dateString = newPosStr;
if (hour < 0 || hour > 23)
return NaN;
if (!*dateString)
return NaN;
// ':12:40 GMT'
if (*dateString++ != ':')
return NaN;
if (!parseLong(dateString, &newPosStr, 10, &minute))
return NaN;
dateString = newPosStr;
if (minute < 0 || minute > 59)
return NaN;
// ':40 GMT'
if (*dateString && *dateString != ':' && !isASCIISpace(*dateString))
return NaN;
// seconds are optional in rfc822 + rfc2822
if (*dateString ==':') {
dateString++;
if (!parseLong(dateString, &newPosStr, 10, &second))
return NaN;
dateString = newPosStr;
if (second < 0 || second > 59)
return NaN;
}
skipSpacesAndComments(dateString);
if (strncasecmp(dateString, "AM", 2) == 0) {
if (hour > 12)
return NaN;
if (hour == 12)
hour = 0;
dateString += 2;
skipSpacesAndComments(dateString);
} else if (strncasecmp(dateString, "PM", 2) == 0) {
if (hour > 12)
return NaN;
if (hour != 12)
hour += 12;
dateString += 2;
skipSpacesAndComments(dateString);
}
}
}
bool haveTZ = false;
int offset = 0;
// Don't fail if the time zone is missing.
// Some websites omit the time zone (4275206).
if (*dateString) {
if (strncasecmp(dateString, "GMT", 3) == 0 || strncasecmp(dateString, "UTC", 3) == 0) {
dateString += 3;
haveTZ = true;
}
if (*dateString == '+' || *dateString == '-') {
long o;
if (!parseLong(dateString, &newPosStr, 10, &o))
return NaN;
dateString = newPosStr;
if (o < -9959 || o > 9959)
return NaN;
int sgn = (o < 0) ? -1 : 1;
o = labs(o);
if (*dateString != ':') {
offset = ((o / 100) * 60 + (o % 100)) * sgn;
} else { // GMT+05:00
long o2;
if (!parseLong(dateString, &newPosStr, 10, &o2))
return NaN;
dateString = newPosStr;
offset = (o * 60 + o2) * sgn;
}
haveTZ = true;
} else {
for (int i = 0; i < int(sizeof(known_zones) / sizeof(KnownZone)); i++) {
if (0 == strncasecmp(dateString, known_zones[i].tzName, strlen(known_zones[i].tzName))) {
offset = known_zones[i].tzOffset;
dateString += strlen(known_zones[i].tzName);
haveTZ = true;
break;
}
}
}
}
skipSpacesAndComments(dateString);
if (*dateString && year == -1) {
if (!parseLong(dateString, &newPosStr, 10, &year))
return NaN;
dateString = newPosStr;
}
skipSpacesAndComments(dateString);
// Trailing garbage
if (*dateString)
return NaN;
// Y2K: Handle 2 digit years.
if (year >= 0 && year < 100) {
if (year < 50)
year += 2000;
else
year += 1900;
}
// fall back to local timezone
if (!haveTZ) {
GregorianDateTime t;
t.monthDay = day;
t.month = month;
t.year = year - 1900;
t.isDST = -1;
t.second = second;
t.minute = minute;
t.hour = hour;
// Use our gregorianDateTimeToMS() rather than mktime() as the latter can't handle the full year range.
return gregorianDateTimeToMS(t, 0, false);
}
return (ymdhmsToSeconds(year, month + 1, day, hour, minute, second) - (offset * 60.0)) * msPerSecond;
}
