scuffed-code/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
#if !UCONFIG_NO_FORMATTING
#include "unicode/ures.h"
#include "ureslocs.h"
#include "charstr.h"
#include "uresimp.h"
#include "number_longnames.h"
#include <algorithm>
#include "cstring.h"
using namespace icu;
using namespace icu::number::impl;
namespace {
//////////////////////////
/// 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 < StandardPlural::Form::COUNT; i++) {
outArray[i].setToBogus();
}
}
void put(const char *key, ResourceValue &value, UBool /*noFallback*/, UErrorCode &status) override {
ResourceTable pluralsTable = value.getTable(status);
if (U_FAILURE(status)) { return; }
for (int i = 0; pluralsTable.getKeyAndValue(i, key, value); ++i) {
// In MeasureUnit data, ignore dnam and per units for now.
if (uprv_strcmp(key, "dnam") == 0 || uprv_strcmp(key, "per") == 0) {
continue;
}
StandardPlural::Form plural = StandardPlural::fromString(key, status);
if (U_FAILURE(status)) { return; }
if (!outArray[plural].isBogus()) {
continue;
}
outArray[plural] = 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.
void getMeasureData(const Locale &locale, const MeasureUnit &unit, const UNumberUnitWidth &width,
UnicodeString *outArray, UErrorCode &status) {
PluralTableSink sink(outArray);
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("/", status);
key.append(unit.getType(), status);
key.append("/", status);
key.append(unit.getSubtype(), 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;
}
UBool isChoiceFormat = FALSE;
int32_t longNameLen = 0;
const char16_t *longName = ucurr_getPluralName(
currency.getISOCurrency(),
locale.getName(),
&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));
}
}
////////////////////////
/// END DATA LOADING ///
////////////////////////
} // namespace
LongNameHandler
LongNameHandler::forMeasureUnit(const Locale &loc, const MeasureUnit &unit, const UNumberUnitWidth &width,
const PluralRules *rules, const MicroPropsGenerator *parent,
UErrorCode &status) {
LongNameHandler result(rules, parent);
UnicodeString simpleFormats[StandardPlural::Form::COUNT];
getMeasureData(loc, unit, width, simpleFormats, status);
if (U_FAILURE(status)) { return result; }
// TODO: What field to use for units?
simpleFormatsToModifiers(simpleFormats, UNUM_FIELD_COUNT, result.fModifiers, status);
return result;
}
LongNameHandler LongNameHandler::forCurrencyLongNames(const Locale &loc, const CurrencyUnit &currency,
const PluralRules *rules,
const MicroPropsGenerator *parent,
UErrorCode &status) {
LongNameHandler result(rules, parent);
UnicodeString simpleFormats[StandardPlural::Form::COUNT];
getCurrencyLongNameData(loc, currency, simpleFormats, status);
if (U_FAILURE(status)) { return result; }
simpleFormatsToModifiers(simpleFormats, UNUM_CURRENCY_FIELD, result.fModifiers, status);
return result;
}
void LongNameHandler::simpleFormatsToModifiers(const UnicodeString *simpleFormats, Field field,
SimpleModifier *output, UErrorCode &status) {
for (int32_t i = 0; i < StandardPlural::Form::COUNT; i++) {
UnicodeString simpleFormat = simpleFormats[i];
if (simpleFormat.isBogus()) {
simpleFormat = simpleFormats[StandardPlural::Form::OTHER];
}
if (simpleFormat.isBogus()) {
// There should always be data in the "other" plural variant.
status = U_INTERNAL_PROGRAM_ERROR;
return;
}
SimpleFormatter compiledFormatter(simpleFormat, 1, 1, status);
output[i] = SimpleModifier(compiledFormatter, field, false);
}
}
void LongNameHandler::processQuantity(DecimalQuantity &quantity, MicroProps &micros,
UErrorCode &status) const {
parent->processQuantity(quantity, micros, status);
// TODO: Avoid the copy here?
DecimalQuantity copy(quantity);
micros.rounding.apply(copy, status);
micros.modOuter = &fModifiers[copy.getStandardPlural(rules)];
}
#endif /* #if !UCONFIG_NO_FORMATTING */