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skia / external / github.com / unicode-org / icu / 4fd9b8de8d70f88d3290643b7e85da117cdc9ef8 / . / icu4c / source / i18n / number_longnames.cpp
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// © 2017 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
#include "unicode/utypes.h"
#if !UCONFIG_NO_FORMATTING
#include "unicode/simpleformatter.h"
#include "unicode/ures.h"
#include "ureslocs.h"
#include "charstr.h"
#include "uresimp.h"
#include "measunit_impl.h"
#include "number_longnames.h"
#include "number_microprops.h"
#include <algorithm>
#include "cstring.h"
#include "util.h"
using namespace icu;
using namespace icu::number;
using namespace icu::number::impl;
namespace {
/**
* Display Name (this format has no placeholder).
*
* Used as an index into the LongNameHandler::simpleFormats array. Units
* resources cover the normal set of PluralRules keys, as well as `dnam` and
* `per` forms.
*/
constexpr int32_t DNAM_INDEX = StandardPlural::Form::COUNT;
/**
* "per" form (e.g. "{0} per day" is day's "per" form).
*
* Used as an index into the LongNameHandler::simpleFormats array. Units
* resources cover the normal set of PluralRules keys, as well as `dnam` and
* `per` forms.
*/
constexpr int32_t PER_INDEX = StandardPlural::Form::COUNT + 1;
/**
* Gender of the word, in languages with grammatical gender.
*/
constexpr int32_t GENDER_INDEX = StandardPlural::Form::COUNT + 2;
// Number of keys in the array populated by PluralTableSink.
constexpr int32_t ARRAY_LENGTH = StandardPlural::Form::COUNT + 3;
// TODO(inflections): load this list from resources, after creating a "&set"
// function for use in ldml2icu rules.
const int32_t GENDER_COUNT = 7;
const char *gGenders[GENDER_COUNT] = {"animate", "common", "feminine", "inanimate",
"masculine", "neuter", "personal"};
const char *getGenderString(UnicodeString uGender, UErrorCode status) {
CharString gender;
gender.appendInvariantChars(uGender, status);
if (U_FAILURE(status)) {
return "";
}
int32_t first = 0;
int32_t last = GENDER_COUNT;
while (first < last) {
int32_t mid = (first + last) / 2;
int32_t cmp = uprv_strcmp(gender.data(), gGenders[mid]);
if (cmp == 0) {
return gGenders[mid];
} else if (cmp > 0) {
first = mid + 1;
} else if (cmp < 0) {
last = mid;
}
}
return "";
}
static int32_t getIndex(const char* pluralKeyword, UErrorCode& status) {
// pluralKeyword can also be "dnam", "per", or "gender"
switch (*pluralKeyword) {
case 'd':
if (uprv_strcmp(pluralKeyword + 1, "nam") == 0) {
return DNAM_INDEX;
}
break;
case 'g':
if (uprv_strcmp(pluralKeyword + 1, "ender") == 0) {
return GENDER_INDEX;
}
break;
case 'p':
if (uprv_strcmp(pluralKeyword + 1, "er") == 0) {
return PER_INDEX;
}
break;
default:
break;
}
StandardPlural::Form plural = StandardPlural::fromString(pluralKeyword, status);
return plural;
}
// Selects a string out of the `strings` array which corresponds to the
// specified plural form, with fallback to the OTHER form.
//
// The `strings` array must have ARRAY_LENGTH items: one corresponding to each
// of the plural forms, plus a display name ("dnam") and a "per" form.
static UnicodeString getWithPlural(
const UnicodeString* strings,
StandardPlural::Form plural,
UErrorCode& status) {
UnicodeString result = strings[plural];
if (result.isBogus()) {
result = strings[StandardPlural::Form::OTHER];
}
if (result.isBogus()) {
// There should always be data in the "other" plural variant.
status = U_INTERNAL_PROGRAM_ERROR;
}
return result;
}
//////////////////////////
/// BEGIN DATA LOADING ///
//////////////////////////
class PluralTableSink : public ResourceSink {
public:
explicit PluralTableSink(UnicodeString *outArray) : outArray(outArray) {
// Initialize the array to bogus strings.
for (int32_t i = 0; i < ARRAY_LENGTH; i++) {
outArray[i].setToBogus();
}
}
void put(const char *key, ResourceValue &value, UBool /*noFallback*/, UErrorCode &status) U_OVERRIDE {
ResourceTable pluralsTable = value.getTable(status);
if (U_FAILURE(status)) { return; }
for (int32_t i = 0; pluralsTable.getKeyAndValue(i, key, value); ++i) {
if (uprv_strcmp(key, "case") == 0) {
continue;
}
int32_t index = getIndex(key, status);
if (U_FAILURE(status)) { return; }
if (!outArray[index].isBogus()) {
continue;
}
outArray[index] = value.getUnicodeString(status);
if (U_FAILURE(status)) { return; }
}
}
private:
UnicodeString *outArray;
};
// NOTE: outArray MUST have room for all StandardPlural values. No bounds checking is performed.
/**
* Populates outArray with `locale`-specific values for `unit` through use of
* PluralTableSink. Only the set of basic units are supported!
*
* Reading from resources *unitsNarrow* and *unitsShort* (for width
* UNUM_UNIT_WIDTH_NARROW), or just *unitsShort* (for width
* UNUM_UNIT_WIDTH_SHORT). For other widths, it reads just "units".
*
* @param unit must be a built-in unit, i.e. must have a type and subtype,
* listed in gTypes and gSubTypes in measunit.cpp.
* @param unitDisplayCase the empty string and "nominative" are treated the
* same. For other cases, strings for the requested case are used if found.
* (For any missing case-specific data, we fall back to nominative.)
* @param outArray must be of fixed length ARRAY_LENGTH.
*/
void getMeasureData(const Locale &locale,
const MeasureUnit &unit,
const UNumberUnitWidth &width,
StringPiece unitDisplayCase,
UnicodeString *outArray,
UErrorCode &status) {
PluralTableSink sink(outArray);
LocalUResourceBundlePointer unitsBundle(ures_open(U_ICUDATA_UNIT, locale.getName(), &status));
if (U_FAILURE(status)) { return; }
// Map duration-year-person, duration-week-person, etc. to duration-year, duration-week, ...
// TODO(ICU-20400): Get duration-*-person data properly with aliases.
StringPiece subtypeForResource;
int32_t subtypeLen = static_cast<int32_t>(uprv_strlen(unit.getSubtype()));
if (subtypeLen > 7 && uprv_strcmp(unit.getSubtype() + subtypeLen - 7, "-person") == 0) {
subtypeForResource = {unit.getSubtype(), subtypeLen - 7};
} else {
subtypeForResource = unit.getSubtype();
}
CharString key;
key.append("units", status);
// TODO(icu-units#140): support gender for other unit widths.
if (width == UNUM_UNIT_WIDTH_NARROW) {
key.append("Narrow", status);
} else if (width == UNUM_UNIT_WIDTH_SHORT) {
key.append("Short", status);
}
key.append("/", status);
key.append(unit.getType(), status);
key.append("/", status);
key.append(subtypeForResource, status);
// Grab desired case first, if available. Then grab no-case data to fill in
// the gaps.
if (width == UNUM_UNIT_WIDTH_FULL_NAME && !unitDisplayCase.empty()) {
CharString caseKey;
caseKey.append(key, status);
caseKey.append("/case/", status);
caseKey.append(unitDisplayCase, status);
UErrorCode localStatus = U_ZERO_ERROR;
ures_getAllItemsWithFallback(unitsBundle.getAlias(), caseKey.data(), sink, localStatus);
// TODO(icu-units#138): our fallback logic is not spec-compliant: we
// check the given case, then go straight to the no-case data. The spec
// states we should first look for case="nominative". As part of #138,
// either get the spec changed, or add unit tests that warn us if
// case="nominative" data differs from no-case data?
}
UErrorCode localStatus = U_ZERO_ERROR;
ures_getAllItemsWithFallback(unitsBundle.getAlias(), key.data(), sink, localStatus);
if (width == UNUM_UNIT_WIDTH_SHORT) {
if (U_FAILURE(localStatus)) {
status = localStatus;
}
return;
}
// TODO(ICU-13353): The fallback to short does not work in ICU4C.
// Manually fall back to short (this is done automatically in Java).
key.clear();
key.append("unitsShort/", status);
key.append(unit.getType(), status);
key.append("/", status);
key.append(subtypeForResource, status);
ures_getAllItemsWithFallback(unitsBundle.getAlias(), key.data(), sink, status);
}
void getCurrencyLongNameData(const Locale &locale, const CurrencyUnit &currency, UnicodeString *outArray,
UErrorCode &status) {
// In ICU4J, this method gets a CurrencyData from CurrencyData.provider.
// TODO(ICU4J): Implement this without going through CurrencyData, like in ICU4C?
PluralTableSink sink(outArray);
LocalUResourceBundlePointer unitsBundle(ures_open(U_ICUDATA_CURR, locale.getName(), &status));
if (U_FAILURE(status)) { return; }
ures_getAllItemsWithFallback(unitsBundle.getAlias(), "CurrencyUnitPatterns", sink, status);
if (U_FAILURE(status)) { return; }
for (int32_t i = 0; i < StandardPlural::Form::COUNT; i++) {
UnicodeString &pattern = outArray[i];
if (pattern.isBogus()) {
continue;
}
int32_t longNameLen = 0;
const char16_t *longName = ucurr_getPluralName(
currency.getISOCurrency(),
locale.getName(),
nullptr /* isChoiceFormat */,
StandardPlural::getKeyword(static_cast<StandardPlural::Form>(i)),
&longNameLen,
&status);
// Example pattern from data: "{0} {1}"
// Example output after find-and-replace: "{0} US dollars"
pattern.findAndReplace(UnicodeString(u"{1}"), UnicodeString(longName, longNameLen));
}
}
UnicodeString getPerUnitFormat(const Locale& locale, const UNumberUnitWidth &width, UErrorCode& status) {
LocalUResourceBundlePointer unitsBundle(ures_open(U_ICUDATA_UNIT, locale.getName(), &status));
if (U_FAILURE(status)) { return {}; }
CharString key;
key.append("units", status);
if (width == UNUM_UNIT_WIDTH_NARROW) {
key.append("Narrow", status);
} else if (width == UNUM_UNIT_WIDTH_SHORT) {
key.append("Short", status);
}
key.append("/compound/per", status);
int32_t len = 0;
const UChar* ptr = ures_getStringByKeyWithFallback(unitsBundle.getAlias(), key.data(), &len, &status);
return UnicodeString(ptr, len);
}
/**
* Loads and applies deriveComponent rules from CLDR's grammaticalFeatures.xml.
*
* Consider a deriveComponent rule that looks like this:
*
* <deriveComponent feature="case" structure="per" value0="compound" value1="nominative"/>
*
* Instantiating an instance as follows:
*
* DerivedComponents d(loc, "case", "per", "foo");
*
* Applying the rule in the XML element above, `d.value0()` will be "foo", and
* `d.value1()` will be "nominative".
*
* In case of any kind of failure, value0() and value1() will simply return "".
*/
class DerivedComponents {
public:
/**
* Constructor.
*
* The feature and structure parameters must be null-terminated. The string
* referenced by compoundValue must exist for longer than the
* DerivedComponents instance.
*/
DerivedComponents(const Locale &locale,
const char *feature,
const char *structure,
const StringPiece compoundValue) {
StackUResourceBundle derivationsBundle, stackBundle;
ures_openDirectFillIn(derivationsBundle.getAlias(), NULL, "grammaticalFeatures", &status);
ures_getByKey(derivationsBundle.getAlias(), "grammaticalData", derivationsBundle.getAlias(),
&status);
ures_getByKey(derivationsBundle.getAlias(), "derivations", derivationsBundle.getAlias(),
&status);
if (U_FAILURE(status)) {
return;
}
UErrorCode localStatus = U_ZERO_ERROR;
// TODO: use standard normal locale resolution algorithms rather than just grabbing language:
ures_getByKey(derivationsBundle.getAlias(), locale.getLanguage(), stackBundle.getAlias(),
&localStatus);
// TODO:
// - code currently assumes if the locale exists, the rules are there -
// instead of falling back to root when the requested rule is missing.
// - investigate ures.h functions, see if one that uses res_findResource()
// might be better (or use res_findResource directly), or maybe help
// improve ures documentation to guide function selection?
if (localStatus == U_MISSING_RESOURCE_ERROR) {
ures_getByKey(derivationsBundle.getAlias(), "root", stackBundle.getAlias(), &status);
} else {
status = localStatus;
}
ures_getByKey(stackBundle.getAlias(), "component", stackBundle.getAlias(), &status);
ures_getByKey(stackBundle.getAlias(), feature, stackBundle.getAlias(), &status);
ures_getByKey(stackBundle.getAlias(), structure, stackBundle.getAlias(), &status);
UnicodeString val0 = ures_getUnicodeStringByIndex(stackBundle.getAlias(), 0, &status);
UnicodeString val1 = ures_getUnicodeStringByIndex(stackBundle.getAlias(), 1, &status);
if (U_SUCCESS(status)) {
if (val0.compare(UnicodeString(u"compound")) == 0) {
sp0 = compoundValue;
} else {
memory0.appendInvariantChars(val0, status);
sp0 = memory0.toStringPiece();
}
if (val1.compare(UnicodeString(u"compound")) == 0) {
sp1 = compoundValue;
} else {
memory1.appendInvariantChars(val1, status);
sp1 = memory1.toStringPiece();
}
}
}
// The returned StringPiece is only valid as long as both the instance
// exists, and the compoundValue passed to the constructor is valid.
StringPiece value0() const {
return sp0;
}
// The returned StringPiece is only valid as long as both the instance
// exists, and the compoundValue passed to the constructor is valid.
StringPiece value1() const {
return sp1;
}
private:
UErrorCode status = U_ZERO_ERROR;
// Holds strings referred to by value0 and value1;
CharString memory0, memory1;
StringPiece sp0, sp1;
};
UnicodeString
getDeriveCompoundRule(Locale locale, const char *feature, const char *structure, UErrorCode &status) {
StackUResourceBundle derivationsBundle, stackBundle;
ures_openDirectFillIn(derivationsBundle.getAlias(), NULL, "grammaticalFeatures", &status);
ures_getByKey(derivationsBundle.getAlias(), "grammaticalData", derivationsBundle.getAlias(),
&status);
ures_getByKey(derivationsBundle.getAlias(), "derivations", derivationsBundle.getAlias(), &status);
// TODO: use standard normal locale resolution algorithms rather than just grabbing language:
ures_getByKey(derivationsBundle.getAlias(), locale.getLanguage(), stackBundle.getAlias(), &status);
// TODO:
// - code currently assumes if the locale exists, the rules are there -
// instead of falling back to root when the requested rule is missing.
// - investigate ures.h functions, see if one that uses res_findResource()
// might be better (or use res_findResource directly), or maybe help
// improve ures documentation to guide function selection?
if (status == U_MISSING_RESOURCE_ERROR) {
status = U_ZERO_ERROR;
ures_getByKey(derivationsBundle.getAlias(), "root", stackBundle.getAlias(), &status);
}
ures_getByKey(stackBundle.getAlias(), "compound", stackBundle.getAlias(), &status);
ures_getByKey(stackBundle.getAlias(), feature, stackBundle.getAlias(), &status);
return ures_getUnicodeStringByKey(stackBundle.getAlias(), structure, &status);
}
////////////////////////
/// END DATA LOADING ///
////////////////////////
// TODO: promote this somewhere? It's based on patternprops.cpp' trimWhitespace
const UChar *trimSpaceChars(const UChar *s, int32_t &length) {
if (length <= 0 || (!u_isJavaSpaceChar(s[0]) && !u_isJavaSpaceChar(s[length - 1]))) {
return s;
}
int32_t start = 0;
int32_t limit = length;
while (start < limit && u_isJavaSpaceChar(s[start])) {
++start;
}
if (start < limit) {
// There is non-white space at start; we will not move limit below that,
// so we need not test start<limit in the loop.
while (u_isJavaSpaceChar(s[limit - 1])) {
--limit;
}
}
length = limit - start;
return s + start;
}
} // namespace
void LongNameHandler::forMeasureUnit(const Locale &loc,
const MeasureUnit &unitRef,
const UNumberUnitWidth &width,
StringPiece unitDisplayCase,
const PluralRules *rules,
const MicroPropsGenerator *parent,
LongNameHandler *fillIn,
UErrorCode &status) {
// Not valid for mixed units that aren't built-in units, and there should
// not be any built-in mixed units!
U_ASSERT(uprv_strcmp(unitRef.getType(), "") != 0 ||
unitRef.getComplexity(status) != UMEASURE_UNIT_MIXED);
U_ASSERT(fillIn != nullptr);
if (uprv_strcmp(unitRef.getType(), "") == 0) {
// Not a built-in unit. Split it up, since we can already format
// "builtin-per-builtin".
// TODO(ICU-20941): support more generic case than builtin-per-builtin.
MeasureUnitImpl fullUnit = MeasureUnitImpl::forMeasureUnitMaybeCopy(unitRef, status);
if (U_FAILURE(status)) {
return;
}
MeasureUnitImpl unit;
MeasureUnitImpl perUnit;
for (int32_t i = 0; i < fullUnit.singleUnits.length(); i++) {
SingleUnitImpl *subUnit = fullUnit.singleUnits[i];
if (subUnit->dimensionality > 0) {
unit.appendSingleUnit(*subUnit, status);
} else {
subUnit->dimensionality *= -1;
perUnit.appendSingleUnit(*subUnit, status);
}
}
forCompoundUnit(loc, std::move(unit).build(status), std::move(perUnit).build(status), width,
unitDisplayCase, rules, parent, fillIn, status);
return;
}
UnicodeString simpleFormats[ARRAY_LENGTH];
getMeasureData(loc, unitRef, width, unitDisplayCase, simpleFormats, status);
if (U_FAILURE(status)) {
return;
}
fillIn->rules = rules;
fillIn->parent = parent;
fillIn->simpleFormatsToModifiers(simpleFormats, {UFIELD_CATEGORY_NUMBER, UNUM_MEASURE_UNIT_FIELD},
status);
if (!simpleFormats[GENDER_INDEX].isBogus()) {
fillIn->gender = getGenderString(simpleFormats[GENDER_INDEX], status);
}
}
void LongNameHandler::forCompoundUnit(const Locale &loc,
const MeasureUnit &unit,
const MeasureUnit &perUnit,
const UNumberUnitWidth &width,
StringPiece unitDisplayCase,
const PluralRules *rules,
const MicroPropsGenerator *parent,
LongNameHandler *fillIn,
UErrorCode &status) {
if (U_FAILURE(status)) {
return;
}
if (uprv_strcmp(unit.getType(), "") == 0 || uprv_strcmp(perUnit.getType(), "") == 0) {
// TODO(ICU-20941): Unsanctioned unit. Not yet fully supported. Set an
// error code. Once we support not-built-in units here, unitRef may be
// anything, but if not built-in, perUnit has to be "none".
status = U_UNSUPPORTED_ERROR;
return;
}
if (fillIn == nullptr) {
status = U_INTERNAL_PROGRAM_ERROR;
return;
}
DerivedComponents derivedPerCases(loc, "case", "per", unitDisplayCase);
UnicodeString primaryData[ARRAY_LENGTH];
getMeasureData(loc, unit, width, derivedPerCases.value0(), primaryData, status);
if (U_FAILURE(status)) {
return;
}
UnicodeString secondaryData[ARRAY_LENGTH];
getMeasureData(loc, perUnit, width, derivedPerCases.value1(), secondaryData, status);
if (U_FAILURE(status)) {
return;
}
// TODO(icu-units#139): implement these rules:
// <deriveComponent feature="plural" structure="per" ...>
// This has impact on multiSimpleFormatsToModifiers(...) below too.
// These rules are currently (ICU 69) all the same and hard-coded below.
UnicodeString perUnitFormat;
if (!secondaryData[PER_INDEX].isBogus()) {
perUnitFormat = secondaryData[PER_INDEX];
} else {
UnicodeString rawPerUnitFormat = getPerUnitFormat(loc, width, status);
if (U_FAILURE(status)) {
return;
}
// rawPerUnitFormat is something like "{0} per {1}"; we need to substitute in the secondary unit.
SimpleFormatter compiled(rawPerUnitFormat, 2, 2, status);
if (U_FAILURE(status)) {
return;
}
UnicodeString secondaryFormat = getWithPlural(secondaryData, StandardPlural::Form::ONE, status);
if (U_FAILURE(status)) {
return;
}
// Some "one" pattern may not contain "{0}". For example in "ar" or "ne" locale.
SimpleFormatter secondaryCompiled(secondaryFormat, 0, 1, status);
if (U_FAILURE(status)) {
return;
}
UnicodeString secondaryFormatString = secondaryCompiled.getTextWithNoArguments();
int32_t trimmedSecondaryLen = secondaryFormatString.length();
const UChar *trimmedSecondaryString =
trimSpaceChars(secondaryFormatString.getBuffer(), trimmedSecondaryLen);
UnicodeString secondaryString(false, trimmedSecondaryString, trimmedSecondaryLen);
// TODO: Why does UnicodeString need to be explicit in the following line?
compiled.format(UnicodeString(u"{0}"), secondaryString, perUnitFormat, status);
if (U_FAILURE(status)) {
return;
}
}
fillIn->rules = rules;
fillIn->parent = parent;
fillIn->multiSimpleFormatsToModifiers(primaryData, perUnitFormat,
{UFIELD_CATEGORY_NUMBER, UNUM_MEASURE_UNIT_FIELD}, status);
// Gender
UnicodeString uVal = getDeriveCompoundRule(loc, "gender", "per", status);
if (U_FAILURE(status)) {
return;
}
U_ASSERT(!uVal.isBogus() && uVal.length() == 1);
switch (uVal[0]) {
case u'0':
fillIn->gender = getGenderString(primaryData[GENDER_INDEX], status);
break;
case u'1':
fillIn->gender = getGenderString(secondaryData[GENDER_INDEX], status);
break;
default:
// Data error. Assert-fail in debug mode, else return no gender.
U_ASSERT(false);
}
}
UnicodeString LongNameHandler::getUnitDisplayName(
const Locale& loc,
const MeasureUnit& unit,
UNumberUnitWidth width,
UErrorCode& status) {
if (U_FAILURE(status)) {
return ICU_Utility::makeBogusString();
}
UnicodeString simpleFormats[ARRAY_LENGTH];
getMeasureData(loc, unit, width, "", simpleFormats, status);
return simpleFormats[DNAM_INDEX];
}
UnicodeString LongNameHandler::getUnitPattern(
const Locale& loc,
const MeasureUnit& unit,
UNumberUnitWidth width,
StandardPlural::Form pluralForm,
UErrorCode& status) {
if (U_FAILURE(status)) {
return ICU_Utility::makeBogusString();
}
UnicodeString simpleFormats[ARRAY_LENGTH];
getMeasureData(loc, unit, width, "", simpleFormats, status);
// The above already handles fallback from other widths to short
if (U_FAILURE(status)) {
return ICU_Utility::makeBogusString();
}
// Now handle fallback from other plural forms to OTHER
return (!(simpleFormats[pluralForm]).isBogus())? simpleFormats[pluralForm]:
simpleFormats[StandardPlural::Form::OTHER];
}
LongNameHandler* LongNameHandler::forCurrencyLongNames(const Locale &loc, const CurrencyUnit &currency,
const PluralRules *rules,
const MicroPropsGenerator *parent,
UErrorCode &status) {
auto* result = new LongNameHandler(rules, parent);
if (result == nullptr) {
status = U_MEMORY_ALLOCATION_ERROR;
return nullptr;
}
UnicodeString simpleFormats[ARRAY_LENGTH];
getCurrencyLongNameData(loc, currency, simpleFormats, status);
if (U_FAILURE(status)) { return nullptr; }
result->simpleFormatsToModifiers(simpleFormats, {UFIELD_CATEGORY_NUMBER, UNUM_CURRENCY_FIELD}, status);
// TODO(inflections): currency gender?
return result;
}
void LongNameHandler::simpleFormatsToModifiers(const UnicodeString *simpleFormats, Field field,
UErrorCode &status) {
for (int32_t i = 0; i < StandardPlural::Form::COUNT; i++) {
StandardPlural::Form plural = static_cast<StandardPlural::Form>(i);
UnicodeString simpleFormat = getWithPlural(simpleFormats, plural, status);
if (U_FAILURE(status)) { return; }
SimpleFormatter compiledFormatter(simpleFormat, 0, 1, status);
if (U_FAILURE(status)) { return; }
fModifiers[i] = SimpleModifier(compiledFormatter, field, false, {this, SIGNUM_POS_ZERO, plural});
}
}
void LongNameHandler::multiSimpleFormatsToModifiers(const UnicodeString *leadFormats, UnicodeString trailFormat,
Field field, UErrorCode &status) {
SimpleFormatter trailCompiled(trailFormat, 1, 1, status);
if (U_FAILURE(status)) { return; }
for (int32_t i = 0; i < StandardPlural::Form::COUNT; i++) {
StandardPlural::Form plural = static_cast<StandardPlural::Form>(i);
UnicodeString leadFormat = getWithPlural(leadFormats, plural, status);
if (U_FAILURE(status)) { return; }
UnicodeString compoundFormat;
trailCompiled.format(leadFormat, compoundFormat, status);
if (U_FAILURE(status)) { return; }
SimpleFormatter compoundCompiled(compoundFormat, 0, 1, status);
if (U_FAILURE(status)) { return; }
fModifiers[i] = SimpleModifier(compoundCompiled, field, false, {this, SIGNUM_POS_ZERO, plural});
}
}
void LongNameHandler::processQuantity(DecimalQuantity &quantity, MicroProps &micros,
UErrorCode &status) const {
if (parent != NULL) {
parent->processQuantity(quantity, micros, status);
}
StandardPlural::Form pluralForm = utils::getPluralSafe(micros.rounder, rules, quantity, status);
micros.modOuter = &fModifiers[pluralForm];
micros.gender = gender;
}
const Modifier* LongNameHandler::getModifier(Signum /*signum*/, StandardPlural::Form plural) const {
return &fModifiers[plural];
}
void MixedUnitLongNameHandler::forMeasureUnit(const Locale &loc,
const MeasureUnit &mixedUnit,
const UNumberUnitWidth &width,
StringPiece unitDisplayCase,
const PluralRules *rules,
const MicroPropsGenerator *parent,
MixedUnitLongNameHandler *fillIn,
UErrorCode &status) {
U_ASSERT(mixedUnit.getComplexity(status) == UMEASURE_UNIT_MIXED);
U_ASSERT(fillIn != nullptr);
MeasureUnitImpl temp;
const MeasureUnitImpl &impl = MeasureUnitImpl::forMeasureUnit(mixedUnit, temp, status);
fillIn->fMixedUnitCount = impl.singleUnits.length();
fillIn->fMixedUnitData.adoptInstead(new UnicodeString[fillIn->fMixedUnitCount * ARRAY_LENGTH]);
for (int32_t i = 0; i < fillIn->fMixedUnitCount; i++) {
// Grab data for each of the components.
UnicodeString *unitData = &fillIn->fMixedUnitData[i * ARRAY_LENGTH];
// TODO(CLDR-14502): check from the CLDR-14502 ticket whether this
// propagation of unitDisplayCase is correct:
getMeasureData(loc, impl.singleUnits[i]->build(status), width, unitDisplayCase, unitData,
status);
}
// TODO(icu-units#120): Make sure ICU doesn't output zero-valued
// high-magnitude fields
// * for mixed units count N, produce N listFormatters, one for each subset
// that might be formatted.
UListFormatterWidth listWidth = ULISTFMT_WIDTH_SHORT;
if (width == UNUM_UNIT_WIDTH_NARROW) {
listWidth = ULISTFMT_WIDTH_NARROW;
} else if (width == UNUM_UNIT_WIDTH_FULL_NAME) {
// This might be the same as SHORT in most languages:
listWidth = ULISTFMT_WIDTH_WIDE;
}
fillIn->fListFormatter.adoptInsteadAndCheckErrorCode(
ListFormatter::createInstance(loc, ULISTFMT_TYPE_UNITS, listWidth, status), status);
// TODO(ICU-21494): grab gender of each unit, calculate the gender
// associated with this list formatter, save it for later.
fillIn->rules = rules;
fillIn->parent = parent;
// We need a localised NumberFormatter for the numbers of the bigger units
// (providing Arabic numerals, for example).
fillIn->fNumberFormatter = NumberFormatter::withLocale(loc);
}
void MixedUnitLongNameHandler::processQuantity(DecimalQuantity &quantity, MicroProps &micros,
UErrorCode &status) const {
U_ASSERT(fMixedUnitCount > 1);
if (parent != nullptr) {
parent->processQuantity(quantity, micros, status);
}
micros.modOuter = getMixedUnitModifier(quantity, micros, status);
}
const Modifier *MixedUnitLongNameHandler::getMixedUnitModifier(DecimalQuantity &quantity,
MicroProps &micros,
UErrorCode &status) const {
if (micros.mixedMeasuresCount == 0) {
U_ASSERT(micros.mixedMeasuresCount > 0); // Mixed unit: we must have more than one unit value
status = U_UNSUPPORTED_ERROR;
return &micros.helpers.emptyWeakModifier;
}
// Algorithm:
//
// For the mixed-units measurement of: "3 yard, 1 foot, 2.6 inch", we should
// find "3 yard" and "1 foot" in micros.mixedMeasures.
//
// Obtain long-names with plural forms corresponding to measure values:
// * {0} yards, {0} foot, {0} inches
//
// Format the integer values appropriately and modify with the format
// strings:
// - 3 yards, 1 foot
//
// Use ListFormatter to combine, with one placeholder:
// - 3 yards, 1 foot and {0} inches
//
// Return a SimpleModifier for this pattern, letting the rest of the
// pipeline take care of the remaining inches.
LocalArray<UnicodeString> outputMeasuresList(new UnicodeString[fMixedUnitCount], status);
if (U_FAILURE(status)) {
return &micros.helpers.emptyWeakModifier;
}
StandardPlural::Form quantityPlural = StandardPlural::Form::OTHER;
for (int32_t i = 0; i < micros.mixedMeasuresCount; i++) {
DecimalQuantity fdec;
// If numbers are negative, only the first number needs to have its
// negative sign formatted.
int64_t number = i > 0 ? std::abs(micros.mixedMeasures[i]) : micros.mixedMeasures[i];
if (micros.indexOfQuantity == i) { // Insert placeholder for `quantity`
// If quantity is not the first value and quantity is negative
if (micros.indexOfQuantity > 0 && quantity.isNegative()) {
quantity.negate();
}
StandardPlural::Form quantityPlural =
utils::getPluralSafe(micros.rounder, rules, quantity, status);
UnicodeString quantityFormatWithPlural =
getWithPlural(&fMixedUnitData[i * ARRAY_LENGTH], quantityPlural, status);
SimpleFormatter quantityFormatter(quantityFormatWithPlural, 0, 1, status);
quantityFormatter.format(UnicodeString(u"{0}"), outputMeasuresList[i], status);
} else {
fdec.setToLong(number);
StandardPlural::Form pluralForm = utils::getStandardPlural(rules, fdec);
UnicodeString simpleFormat =
getWithPlural(&fMixedUnitData[i * ARRAY_LENGTH], pluralForm, status);
SimpleFormatter compiledFormatter(simpleFormat, 0, 1, status);
UnicodeString num;
auto appendable = UnicodeStringAppendable(num);
fNumberFormatter.formatDecimalQuantity(fdec, status).appendTo(appendable, status);
compiledFormatter.format(num, outputMeasuresList[i], status);
}
}
// TODO(ICU-21494): implement gender for lists of mixed units. Presumably we
// can set micros.gender to the gender associated with the list formatter in
// use below (once we have correct support for that). And then document this
// appropriately? "getMixedUnitModifier" doesn't sound like it would do
// something like this.
// Combine list into a "premixed" pattern
UnicodeString premixedFormatPattern;
fListFormatter->format(outputMeasuresList.getAlias(), fMixedUnitCount, premixedFormatPattern,
status);
SimpleFormatter premixedCompiled(premixedFormatPattern, 0, 1, status);
if (U_FAILURE(status)) {
return &micros.helpers.emptyWeakModifier;
}
micros.helpers.mixedUnitModifier =
SimpleModifier(premixedCompiled, kUndefinedField, false, {this, SIGNUM_POS_ZERO, quantityPlural});
return &micros.helpers.mixedUnitModifier;
}
const Modifier *MixedUnitLongNameHandler::getModifier(Signum /*signum*/,
StandardPlural::Form /*plural*/) const {
// TODO(units): investigate this method when investigating where
// ModifierStore::getModifier() gets used. To be sure it remains
// unreachable:
UPRV_UNREACHABLE;
return nullptr;
}
LongNameMultiplexer *LongNameMultiplexer::forMeasureUnits(const Locale &loc,
const MaybeStackVector<MeasureUnit> &units,
const UNumberUnitWidth &width,
StringPiece unitDisplayCase,
const PluralRules *rules,
const MicroPropsGenerator *parent,
UErrorCode &status) {
LocalPointer<LongNameMultiplexer> result(new LongNameMultiplexer(parent), status);
if (U_FAILURE(status)) {
return nullptr;
}
U_ASSERT(units.length() > 0);
if (result->fHandlers.resize(units.length()) == nullptr) {
status = U_MEMORY_ALLOCATION_ERROR;
return nullptr;
}
result->fMeasureUnits.adoptInstead(new MeasureUnit[units.length()]);
for (int32_t i = 0, length = units.length(); i < length; i++) {
const MeasureUnit &unit = *units[i];
result->fMeasureUnits[i] = unit;
if (unit.getComplexity(status) == UMEASURE_UNIT_MIXED) {
MixedUnitLongNameHandler *mlnh = result->fMixedUnitHandlers.createAndCheckErrorCode(status);
MixedUnitLongNameHandler::forMeasureUnit(loc, unit, width, unitDisplayCase, rules, NULL,
mlnh, status);
result->fHandlers[i] = mlnh;
} else {
LongNameHandler *lnh = result->fLongNameHandlers.createAndCheckErrorCode(status);
LongNameHandler::forMeasureUnit(loc, unit, width, unitDisplayCase, rules, NULL, lnh, status);
result->fHandlers[i] = lnh;
}
if (U_FAILURE(status)) {
return nullptr;
}
}
return result.orphan();
}
void LongNameMultiplexer::processQuantity(DecimalQuantity &quantity, MicroProps &micros,
UErrorCode &status) const {
// We call parent->processQuantity() from the Multiplexer, instead of
// letting LongNameHandler handle it: we don't know which LongNameHandler to
// call until we've called the parent!
fParent->processQuantity(quantity, micros, status);
// Call the correct LongNameHandler based on outputUnit
for (int i = 0; i < fHandlers.getCapacity(); i++) {
if (fMeasureUnits[i] == micros.outputUnit) {
fHandlers[i]->processQuantity(quantity, micros, status);
return;
}
}
if (U_FAILURE(status)) {
return;
}
// We shouldn't receive any outputUnit for which we haven't already got a
// LongNameHandler:
status = U_INTERNAL_PROGRAM_ERROR;
}
#endif /* #if !UCONFIG_NO_FORMATTING */