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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/Try.h"
#include "mozilla/intl/NumberFormat.h"
#include "NumberFormatFields.h"
#include "NumberFormatterSkeleton.h"
#include "ScopedICUObject.h"
#include "unicode/unumberformatter.h"
#include "unicode/upluralrules.h"
namespace mozilla::intl {
/*static*/ Result<UniquePtr<NumberFormat>, ICUError> NumberFormat::TryCreate(
std::string_view aLocale, const NumberFormatOptions& aOptions) {
UniquePtr<NumberFormat> nf = MakeUnique<NumberFormat>();
Result<Ok, ICUError> result = nf->initialize(aLocale, aOptions);
if (result.isOk()) {
return nf;
}
return Err(result.unwrapErr());
}
NumberFormat::~NumberFormat() {
if (mFormattedNumber) {
unumf_closeResult(mFormattedNumber);
}
if (mNumberFormatter) {
unumf_close(mNumberFormatter);
}
}
Result<Ok, ICUError> NumberFormat::initialize(
std::string_view aLocale, const NumberFormatOptions& aOptions) {
mFormatForUnit = aOptions.mUnit.isSome();
NumberFormatterSkeleton skeleton(aOptions);
mNumberFormatter = skeleton.toFormatter(aLocale);
if (mNumberFormatter) {
UErrorCode status = U_ZERO_ERROR;
mFormattedNumber = unumf_openResult(&status);
if (U_FAILURE(status)) {
return Err(ToICUError(status));
}
return Ok();
}
return Err(ICUError::InternalError);
}
Result<std::u16string_view, ICUError> NumberFormat::formatToParts(
double number, NumberPartVector& parts) const {
if (!formatInternal(number)) {
return Err(ICUError::InternalError);
}
bool isNegative = !std::isnan(number) && IsNegative(number);
return FormatResultToParts(mFormattedNumber, Some(number), isNegative,
mFormatForUnit, parts);
}
Result<std::u16string_view, ICUError> NumberFormat::formatToParts(
int64_t number, NumberPartVector& parts) const {
if (!formatInternal(number)) {
return Err(ICUError::InternalError);
}
return FormatResultToParts(mFormattedNumber, Nothing(), number < 0,
mFormatForUnit, parts);
}
Result<std::u16string_view, ICUError> NumberFormat::formatToParts(
std::string_view number, NumberPartVector& parts) const {
if (!formatInternal(number)) {
return Err(ICUError::InternalError);
}
// Non-finite numbers aren't currently supported here. If we ever need to
// support those, the |Maybe<double>| argument must be computed here.
MOZ_ASSERT(number != "Infinity");
MOZ_ASSERT(number != "+Infinity");
MOZ_ASSERT(number != "-Infinity");
MOZ_ASSERT(number != "NaN");
bool isNegative = !number.empty() && number[0] == '-';
return FormatResultToParts(mFormattedNumber, Nothing(), isNegative,
mFormatForUnit, parts);
}
Result<int32_t, ICUError> NumberFormat::selectFormatted(
double number, char16_t* keyword, int32_t keywordSize,
UPluralRules* pluralRules) const {
MOZ_ASSERT(keyword && pluralRules);
UErrorCode status = U_ZERO_ERROR;
MOZ_TRY(format(number));
int32_t utf16KeywordLength = uplrules_selectFormatted(
pluralRules, mFormattedNumber, keyword, keywordSize, &status);
if (U_FAILURE(status)) {
return Err(ToICUError(status));
}
return utf16KeywordLength;
}
bool NumberFormat::formatInternal(double number) const {
// ICU incorrectly formats NaN values with the sign bit set, as if they
// were negative. Replace all NaNs with a single pattern with sign bit
// unset ("positive", that is) until ICU is fixed.
if (MOZ_UNLIKELY(std::isnan(number))) {
number = SpecificNaN<double>(0, 1);
}
UErrorCode status = U_ZERO_ERROR;
unumf_formatDouble(mNumberFormatter, number, mFormattedNumber, &status);
return U_SUCCESS(status);
}
bool NumberFormat::formatInternal(int64_t number) const {
UErrorCode status = U_ZERO_ERROR;
unumf_formatInt(mNumberFormatter, number, mFormattedNumber, &status);
return U_SUCCESS(status);
}
bool NumberFormat::formatInternal(std::string_view number) const {
UErrorCode status = U_ZERO_ERROR;
unumf_formatDecimal(mNumberFormatter, number.data(), number.size(),
mFormattedNumber, &status);
return U_SUCCESS(status);
}
Result<std::u16string_view, ICUError> NumberFormat::formatResult() const {
UErrorCode status = U_ZERO_ERROR;
const UFormattedValue* formattedValue =
unumf_resultAsValue(mFormattedNumber, &status);
if (U_FAILURE(status)) {
return Err(ToICUError(status));
}
int32_t utf16Length;
const char16_t* utf16Str =
ufmtval_getString(formattedValue, &utf16Length, &status);
if (U_FAILURE(status)) {
return Err(ToICUError(status));
}
return std::u16string_view(utf16Str, static_cast<size_t>(utf16Length));
}
} // namespace mozilla::intl
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