String LocaleICU::dateFormat()
{
if (!m_dateFormat.isNull())
return m_dateFormat;
if (!initializeShortDateFormat())
return "yyyy-MM-dd";
m_dateFormat = getDateFormatPattern(m_shortDateFormat);
return m_dateFormat;
}
String LocaleICU::dateFormat()
{
if (!m_dateFormat.isNull())
return m_dateFormat;
if (!initializeShortDateFormat())
return ASCIILiteral("dd/MM/yyyy");
m_dateFormat = getDateFormatPattern(m_shortDateFormat);
return m_dateFormat;
}
void LocaleICU::initializeLocalizedDateFormatText()
{
if (!m_localizedDateFormatText.isNull())
return;
m_localizedDateFormatText = emptyString();
if (!initializeShortDateFormat())
return;
m_localizedDateFormatText = localizeFormat(getDateFormatPattern(m_shortDateFormat));
}
const Vector<String>& LocaleICU::monthLabels()
{
if (m_monthLabels)
return *m_monthLabels;
if (initializeShortDateFormat()) {
m_monthLabels = createLabelVector(m_shortDateFormat, UDAT_MONTHS, UCAL_JANUARY, 12);
if (m_monthLabels)
return *m_monthLabels;
}
m_monthLabels = createFallbackMonthLabels();
return *m_monthLabels;
}
const Vector<String>& LocaleICU::shortStandAloneMonthLabels()
{
if (!m_shortStandAloneMonthLabels.isEmpty())
return m_shortStandAloneMonthLabels;
if (initializeShortDateFormat()) {
if (OwnPtr<Vector<String> > labels = createLabelVector(m_shortDateFormat, UDAT_STANDALONE_SHORT_MONTHS, UCAL_JANUARY, 12)) {
m_shortStandAloneMonthLabels = *labels;
return m_shortStandAloneMonthLabels;
}
}
m_shortStandAloneMonthLabels = shortMonthLabels();
return m_shortStandAloneMonthLabels;
}
double ICULocale::parseLocalizedDate(const String& input)
{
if (!initializeShortDateFormat())
return numeric_limits<double>::quiet_NaN();
if (input.length() > static_cast<unsigned>(numeric_limits<int32_t>::max()))
return numeric_limits<double>::quiet_NaN();
int32_t inputLength = static_cast<int32_t>(input.length());
UErrorCode status = U_ZERO_ERROR;
int32_t parsePosition = 0;
UDate date = udat_parse(m_shortDateFormat, input.characters(), inputLength, &parsePosition, &status);
if (parsePosition != inputLength || U_FAILURE(status))
return numeric_limits<double>::quiet_NaN();
// UDate, which is an alias of double, is compatible with our expectation.
return date;
}
const Vector<String>& LocaleICU::shortMonthLabels()
{
if (!m_shortMonthLabels.isEmpty())
return m_shortMonthLabels;
if (initializeShortDateFormat()) {
if (OwnPtr<Vector<String>> labels = createLabelVector(m_shortDateFormat, UDAT_SHORT_MONTHS, UCAL_JANUARY, 12)) {
m_shortMonthLabels = *labels;
return m_shortMonthLabels;
}
}
m_shortMonthLabels.reserveCapacity(WTF_ARRAY_LENGTH(WTF::monthName));
for (unsigned i = 0; i < WTF_ARRAY_LENGTH(WTF::monthName); ++i)
m_shortMonthLabels.append(WTF::monthName[i]);
return m_shortMonthLabels;
}
String ICULocale::formatLocalizedDate(const DateComponents& dateComponents)
{
if (!initializeShortDateFormat())
return String();
double input = dateComponents.millisecondsSinceEpoch();
UErrorCode status = U_ZERO_ERROR;
int32_t length = udat_format(m_shortDateFormat, input, 0, 0, 0, &status);
if (status != U_BUFFER_OVERFLOW_ERROR)
return String();
Vector<UChar> buffer(length);
status = U_ZERO_ERROR;
udat_format(m_shortDateFormat, input, buffer.data(), length, 0, &status);
if (U_FAILURE(status))
return String();
return String::adopt(buffer);
}
void LocaleICU::initializeCalendar()
{
if (m_weekDayShortLabels)
return;
if (!initializeShortDateFormat()) {
m_firstDayOfWeek = 0;
m_weekDayShortLabels = createFallbackWeekDayShortLabels();
return;
}
m_firstDayOfWeek = ucal_getAttribute(udat_getCalendar(m_shortDateFormat), UCAL_FIRST_DAY_OF_WEEK) - UCAL_SUNDAY;
m_weekDayShortLabels = createLabelVector(m_shortDateFormat, UDAT_SHORT_WEEKDAYS, UCAL_SUNDAY, 7);
if (!m_weekDayShortLabels)
m_weekDayShortLabels = createFallbackWeekDayShortLabels();
}
void ICULocale::initializeLocalizedDateFormatText()
{
if (!m_localizedDateFormatText.isNull())
return;
m_localizedDateFormatText = String("");
if (!initializeShortDateFormat())
return;
UErrorCode status = U_ZERO_ERROR;
int32_t length = udat_toPattern(m_shortDateFormat, TRUE, 0, 0, &status);
if (status != U_BUFFER_OVERFLOW_ERROR)
return;
Vector<UChar> buffer(length);
status = U_ZERO_ERROR;
udat_toPattern(m_shortDateFormat, TRUE, buffer.data(), length, &status);
if (U_FAILURE(status))
return;
m_localizedDateFormatText = localizeFormat(buffer);
}
