UnicodeString&
CompactDecimalFormat::format(
double number,
UnicodeString& appendTo,
FieldPosition& pos,
UErrorCode &status) const {
if (U_FAILURE(status)) {
return appendTo;
}
DigitList orig, rounded;
orig.set(number);
UBool isNegative;
_round(orig, rounded, isNegative, status);
if (U_FAILURE(status)) {
return appendTo;
}
double roundedDouble = rounded.getDouble();
if (isNegative) {
roundedDouble = -roundedDouble;
}
int32_t baseIdx = computeLog10(roundedDouble, TRUE);
double numberToFormat = roundedDouble / _divisors[baseIdx];
UnicodeString variant = _pluralRules->select(numberToFormat);
if (isNegative) {
numberToFormat = -numberToFormat;
}
const CDFUnit* unit = getCDFUnitFallback(_unitsByVariant, variant, baseIdx);
appendTo += unit->prefix;
DecimalFormat::format(numberToFormat, appendTo, pos);
appendTo += unit->suffix;
return appendTo;
}
// populatePower10 grabs data for a particular power of 10 from CLDR.
// The loaded data is stored in result.
static void populatePower10(const UResourceBundle* power10Bundle, CDFLocaleStyleData* result, UErrorCode& status) {
if (U_FAILURE(status)) {
return;
}
char* endPtr = NULL;
double power10 = uprv_strtod(ures_getKey(power10Bundle), &endPtr);
if (*endPtr != 0) {
status = U_INTERNAL_PROGRAM_ERROR;
return;
}
int32_t log10Value = computeLog10(power10, FALSE);
// Silently ignore divisors that are too big.
if (log10Value == MAX_DIGITS) {
return;
}
int32_t size = ures_getSize(power10Bundle);
int32_t numZeros = 0;
UBool otherVariantDefined = FALSE;
UResourceBundle* variantBundle = NULL;
// Iterate over all the plural variants for the power of 10
for (int32_t i = 0; i < size; ++i) {
variantBundle = ures_getByIndex(power10Bundle, i, variantBundle, &status);
if (U_FAILURE(status)) {
ures_close(variantBundle);
return;
}
const char* variant = ures_getKey(variantBundle);
int32_t resLen;
const UChar* formatStrP = ures_getString(variantBundle, &resLen, &status);
if (U_FAILURE(status)) {
ures_close(variantBundle);
return;
}
UnicodeString formatStr(false, formatStrP, resLen);
if (uprv_strcmp(variant, gOther) == 0) {
otherVariantDefined = TRUE;
}
int32_t nz = populatePrefixSuffix(
variant, log10Value, formatStr, result->unitsByVariant, status);
if (U_FAILURE(status)) {
ures_close(variantBundle);
return;
}
if (nz != numZeros) {
// We expect all format strings to have the same number of 0's
// left of the decimal point.
if (numZeros != 0) {
status = U_INTERNAL_PROGRAM_ERROR;
ures_close(variantBundle);
return;
}
numZeros = nz;
}
}
ures_close(variantBundle);
// We expect to find an OTHER variant for each power of 10.
if (!otherVariantDefined) {
status = U_INTERNAL_PROGRAM_ERROR;
return;
}
double divisor = power10;
for (int32_t i = 1; i < numZeros; ++i) {
divisor /= 10.0;
}
result->divisors[log10Value] = divisor;
}