U_CAPI void U_EXPORT2
udat_applyPatternRelative(UDateFormat *format,
const UChar *datePattern,
int32_t datePatternLength,
const UChar *timePattern,
int32_t timePatternLength,
UErrorCode *status)
{
verifyIsRelativeDateFormat(format, status);
if(U_FAILURE(*status)) return;
const UnicodeString datePat((UBool)(datePatternLength == -1), datePattern, datePatternLength);
const UnicodeString timePat((UBool)(timePatternLength == -1), timePattern, timePatternLength);
((RelativeDateFormat*)format)->applyPatterns(datePat, timePat, *status);
}
U_CAPI int32_t U_EXPORT2
udat_toPatternRelativeTime(const UDateFormat *fmt,
UChar *result,
int32_t resultLength,
UErrorCode *status)
{
verifyIsRelativeDateFormat(fmt, status);
if(U_FAILURE(*status)) return -1;
UnicodeString timePattern;
if(!(result==NULL && resultLength==0)) {
// NULL destination for pure preflighting: empty dummy string
// otherwise, alias the destination buffer
timePattern.setTo(result, 0, resultLength);
}
((RelativeDateFormat*)fmt)->toPatternTime(timePattern, *status);
return timePattern.extract(result, resultLength, *status);
}
U_CAPI int32_t U_EXPORT2
udat_toPatternRelativeDate(const UDateFormat *fmt,
UChar *result,
int32_t resultLength,
UErrorCode *status)
{
verifyIsRelativeDateFormat(fmt, status);
if(U_FAILURE(*status)) {
return -1;
}
if (result == NULL ? resultLength != 0 : resultLength < 0) {
*status = U_ILLEGAL_ARGUMENT_ERROR;
return -1;
}
UnicodeString datePattern;
if (result != NULL) {
// NULL destination for pure preflighting: empty dummy string
// otherwise, alias the destination buffer
datePattern.setTo(result, 0, resultLength);
}
((RelativeDateFormat*)fmt)->toPatternDate(datePattern, *status);
return datePattern.extract(result, resultLength, *status);
}
