Item AdjustTimezone::evaluateSingleton(const DynamicContext::Ptr &context) const
{
enum
{
/**
* The maximum zone offset, @c PT14H, in milli seconds.
*/
MSecLimit = 14 * 60/*M*/ * 60/*S*/ * 1000/*ms*/
};
const Item arg(m_operands.first()->evaluateSingleton(context));
if(!arg)
return Item();
QDateTime dt(arg.as<AbstractDateTime>()->toDateTime());
// TODO DT dt.setDateOnly(false);
Q_ASSERT(dt.isValid());
DayTimeDuration::Ptr tz;
if(m_operands.count() == 2)
tz = DayTimeDuration::Ptr(m_operands.at(1)->evaluateSingleton(context).as<DayTimeDuration>());
else
tz = context->implicitTimezone();
if(tz)
{
const MSecondCountProperty tzMSecs = tz->value();
if(tzMSecs % (1000 * 60) != 0)
{
context->error(QtXmlPatterns::tr("A zone offset must be in the "
"range %1..%2 inclusive. %3 is "
"out of range.")
.arg(formatData("-PT14H"))
.arg(formatData("PT14H"))
.arg(formatData(tz->stringValue())),
ReportContext::FODT0003, this);
return Item();
}
else if(tzMSecs > MSecLimit ||
tzMSecs < -MSecLimit)
{
context->error(QtXmlPatterns::tr("%1 is not a whole number of minutes.")
.arg(formatData(tz->stringValue())),
ReportContext::FODT0003, this);
return Item();
}
const SecondCountProperty tzSecs = tzMSecs / 1000;
if(dt.timeSpec() == Qt::LocalTime) /* $arg has no time zone. */
{
/* "If $arg does not have a timezone component and $timezone is not
* the empty sequence, then the result is $arg with $timezone as
* the timezone component." */
//dt.setTimeSpec(QDateTime::Spec(QDateTime::OffsetFromUTC, tzSecs));
dt.setUtcOffset(tzSecs);
Q_ASSERT(dt.isValid());
return createValue(dt);
}
else
{
/* "If $arg has a timezone component and $timezone is not the empty sequence,
* then the result is an xs:dateTime value with a timezone component of
* $timezone that is equal to $arg." */
dt = dt.toUTC();
dt = dt.addSecs(tzSecs);
//dt.setTimeSpec(QDateTime::Spec(QDateTime::OffsetFromUTC, tzSecs));
dt.setUtcOffset(tzSecs);
Q_ASSERT(dt.isValid());
return createValue(dt);
}
}
else
{ /* $timezone is the empty sequence. */
if(dt.timeSpec() == Qt::LocalTime) /* $arg has no time zone. */
{
/* "If $arg does not have a timezone component and $timezone is
* the empty sequence, then the result is $arg." */
return arg;
}
else
{
/* "If $arg has a timezone component and $timezone is the empty sequence,
* then the result is the localized value of $arg without its timezone component." */
dt.setTimeSpec(Qt::LocalTime);
return createValue(dt);
}
}
}
Item ImplicitTimezoneFN::evaluateSingleton(const DynamicContext::Ptr &context) const
{
return toItem(context->implicitTimezone());
}