bool LocaleICU::isRTL()
{
UErrorCode status = U_ZERO_ERROR;
return uloc_getCharacterOrientation(m_locale.data(), &status) == ULOC_LAYOUT_RTL;
}
/*
PAL Function:
GetLocaleInfoInt
Obtains integer locale information
Returns 1 for success, 0 otherwise
*/
extern "C" int32_t GlobalizationNative_GetLocaleInfoInt(
const UChar* localeName, LocaleNumberData localeNumberData, int32_t* value)
{
UErrorCode status = U_ZERO_ERROR;
char locale[ULOC_FULLNAME_CAPACITY];
GetLocale(localeName, locale, ULOC_FULLNAME_CAPACITY, false, &status);
if (U_FAILURE(status))
{
return UErrorCodeToBool(U_ILLEGAL_ARGUMENT_ERROR);
}
switch (localeNumberData)
{
case LanguageId:
*value = uloc_getLCID(locale);
break;
case MeasurementSystem:
status = GetMeasurementSystem(locale, value);
break;
case FractionalDigitsCount:
{
UNumberFormat* numformat = unum_open(UNUM_DECIMAL, NULL, 0, locale, NULL, &status);
if (U_SUCCESS(status))
{
*value = unum_getAttribute(numformat, UNUM_MAX_FRACTION_DIGITS);
unum_close(numformat);
}
break;
}
case NegativeNumberFormat:
*value = GetNumberNegativePattern(locale);
break;
case MonetaryFractionalDigitsCount:
{
UNumberFormat* numformat = unum_open(UNUM_CURRENCY, NULL, 0, locale, NULL, &status);
if (U_SUCCESS(status))
{
*value = unum_getAttribute(numformat, UNUM_MAX_FRACTION_DIGITS);
unum_close(numformat);
}
break;
}
case PositiveMonetaryNumberFormat:
*value = GetCurrencyPositivePattern(locale);
break;
case NegativeMonetaryNumberFormat:
*value = GetCurrencyNegativePattern(locale);
break;
case FirstWeekOfYear:
{
// corresponds to DateTimeFormat.CalendarWeekRule
UCalendar* pCal = ucal_open(nullptr, 0, locale, UCAL_TRADITIONAL, &status);
UCalendarHolder calHolder(pCal, status);
if (U_SUCCESS(status))
{
// values correspond to LOCALE_IFIRSTWEEKOFYEAR
int minDaysInWeek = ucal_getAttribute(pCal, UCAL_MINIMAL_DAYS_IN_FIRST_WEEK);
if (minDaysInWeek == 1)
{
*value = CalendarWeekRule::FirstDay;
}
else if (minDaysInWeek == 7)
{
*value = CalendarWeekRule::FirstFullWeek;
}
else if (minDaysInWeek >= 4)
{
*value = CalendarWeekRule::FirstFourDayWeek;
}
else
{
status = U_UNSUPPORTED_ERROR;
}
}
break;
}
case ReadingLayout:
{
// coresponds to values 0 and 1 in LOCALE_IREADINGLAYOUT (values 2 and 3 not
// used in coreclr)
// 0 - Left to right (such as en-US)
// 1 - Right to left (such as arabic locales)
ULayoutType orientation = uloc_getCharacterOrientation(locale, &status);
// alternative implementation in ICU 54+ is uloc_isRightToLeft() which
// also supports script tags in locale
if (U_SUCCESS(status))
{
*value = (orientation == ULOC_LAYOUT_RTL) ? 1 : 0;
}
break;
}
case FirstDayofWeek:
{
UCalendar* pCal = ucal_open(nullptr, 0, locale, UCAL_TRADITIONAL, &status);
UCalendarHolder calHolder(pCal, status);
if (U_SUCCESS(status))
{
*value = ucal_getAttribute(pCal, UCAL_FIRST_DAY_OF_WEEK) - 1; // .NET is 0-based and ICU is 1-based
}
break;
}
case NegativePercentFormat:
*value = GetPercentNegativePattern(locale);
break;
case PositivePercentFormat:
*value = GetPercentPositivePattern(locale);
break;
default:
status = U_UNSUPPORTED_ERROR;
assert(false);
break;
}
return UErrorCodeToBool(status);
}
