CF_PRIVATE UCalendar *__CFCalendarCreateUCalendar(CFStringRef calendarID, CFStringRef localeID, CFTimeZoneRef tz) {
if (calendarID) {
CFDictionaryRef components = CFLocaleCreateComponentsFromLocaleIdentifier(kCFAllocatorSystemDefault, localeID);
CFMutableDictionaryRef mcomponents = CFDictionaryCreateMutableCopy(kCFAllocatorSystemDefault, 0, components);
CFDictionarySetValue(mcomponents, kCFLocaleCalendarIdentifier, calendarID);
localeID = CFLocaleCreateLocaleIdentifierFromComponents(kCFAllocatorSystemDefault, mcomponents);
CFRelease(mcomponents);
CFRelease(components);
}
char buffer[BUFFER_SIZE];
const char *cstr = CFStringGetCStringPtr(localeID, kCFStringEncodingASCII);
if (NULL == cstr) {
if (CFStringGetCString(localeID, buffer, BUFFER_SIZE, kCFStringEncodingASCII)) cstr = buffer;
}
if (NULL == cstr) {
if (calendarID) CFRelease(localeID);
return NULL;
}
UChar ubuffer[BUFFER_SIZE];
CFStringRef tznam = CFTimeZoneGetName(tz);
CFIndex cnt = CFStringGetLength(tznam);
if (BUFFER_SIZE < cnt) cnt = BUFFER_SIZE;
CFStringGetCharacters(tznam, CFRangeMake(0, cnt), (UniChar *)ubuffer);
UErrorCode status = U_ZERO_ERROR;
UCalendar *cal = ucal_open(ubuffer, cnt, cstr, UCAL_DEFAULT, &status);
if (calendarID) CFRelease(localeID);
return cal;
}
static CFStringRef createLocaleIDFromLocaleAndCalendar(CFLocaleRef locale, CFCalendarRef calendar) {
CFMutableDictionaryRef dict;
{
CFDictionaryRef immutableDict = CFLocaleCreateComponentsFromLocaleIdentifier(kCFAllocatorSystemDefault, CFLocaleGetIdentifier(locale));
dict = CFDictionaryCreateMutableCopy(kCFAllocatorSystemDefault, 0, immutableDict);
CFRelease(immutableDict);
}
if (calendar) {
CFDictionarySetValue(dict, kCFLocaleCalendar, calendar);
}
CFStringRef localeID = CFLocaleCreateLocaleIdentifierFromComponents(kCFAllocatorSystemDefault, dict);
CFRelease(dict);
return localeID;
}
