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// © 2018 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
#include "unicode/utypes.h"
#if !UCONFIG_NO_FORMATTING
// Allow implicit conversion from char16_t* to UnicodeString for this file:
// Helpful in toString methods and elsewhere.
#define UNISTR_FROM_STRING_EXPLICIT
#include "unicode/numberrangeformatter.h"
#include "pluralranges.h"
#include "uresimp.h"
#include "charstr.h"
#include "uassert.h"
#include "util.h"
#include "numrange_impl.h"
U_NAMESPACE_BEGIN
namespace {
class PluralRangesDataSink : public ResourceSink {
public:
PluralRangesDataSink(StandardPluralRanges& output) : fOutput(output) {}
void put(const char* /*key*/, ResourceValue& value, UBool /*noFallback*/, UErrorCode& status) U_OVERRIDE {
ResourceArray entriesArray = value.getArray(status);
if (U_FAILURE(status)) { return; }
fOutput.setCapacity(entriesArray.getSize(), status);
if (U_FAILURE(status)) { return; }
for (int i = 0; entriesArray.getValue(i, value); i++) {
ResourceArray pluralFormsArray = value.getArray(status);
if (U_FAILURE(status)) { return; }
if (pluralFormsArray.getSize() != 3) {
status = U_RESOURCE_TYPE_MISMATCH;
return;
}
pluralFormsArray.getValue(0, value);
StandardPlural::Form first = StandardPlural::fromString(value.getUnicodeString(status), status);
if (U_FAILURE(status)) { return; }
pluralFormsArray.getValue(1, value);
StandardPlural::Form second = StandardPlural::fromString(value.getUnicodeString(status), status);
if (U_FAILURE(status)) { return; }
pluralFormsArray.getValue(2, value);
StandardPlural::Form result = StandardPlural::fromString(value.getUnicodeString(status), status);
if (U_FAILURE(status)) { return; }
fOutput.addPluralRange(first, second, result);
}
}
private:
StandardPluralRanges& fOutput;
};
void getPluralRangesData(const Locale& locale, StandardPluralRanges& output, UErrorCode& status) {
LocalUResourceBundlePointer rb(ures_openDirect(nullptr, "pluralRanges", &status));
if (U_FAILURE(status)) { return; }
CharString dataPath;
dataPath.append("locales/", -1, status);
dataPath.append(locale.getLanguage(), -1, status);
if (U_FAILURE(status)) { return; }
int32_t setLen;
// Not all languages are covered: fail gracefully
UErrorCode internalStatus = U_ZERO_ERROR;
const UChar* set = ures_getStringByKeyWithFallback(rb.getAlias(), dataPath.data(), &setLen, &internalStatus);
if (U_FAILURE(internalStatus)) { return; }
dataPath.clear();
dataPath.append("rules/", -1, status);
dataPath.appendInvariantChars(set, setLen, status);
if (U_FAILURE(status)) { return; }
PluralRangesDataSink sink(output);
ures_getAllItemsWithFallback(rb.getAlias(), dataPath.data(), sink, status);
}
} // namespace
StandardPluralRanges
StandardPluralRanges::forLocale(const Locale& locale, UErrorCode& status) {
StandardPluralRanges result;
getPluralRangesData(locale, result, status);
return result;
}
StandardPluralRanges
StandardPluralRanges::copy(UErrorCode& status) const {
StandardPluralRanges result;
if (fTriplesLen > result.fTriples.getCapacity()) {
if (result.fTriples.resize(fTriplesLen) == nullptr) {
status = U_MEMORY_ALLOCATION_ERROR;
return result;
}
}
uprv_memcpy(result.fTriples.getAlias(),
fTriples.getAlias(),
fTriplesLen * sizeof(fTriples[0]));
result.fTriplesLen = fTriplesLen;
return result;
}
LocalPointer<StandardPluralRanges>
StandardPluralRanges::toPointer(UErrorCode& status) && noexcept {
return LocalPointer<StandardPluralRanges>(new StandardPluralRanges(std::move(*this)), status);
}
void StandardPluralRanges::addPluralRange(
StandardPlural::Form first,
StandardPlural::Form second,
StandardPlural::Form result) {
U_ASSERT(fTriplesLen < fTriples.getCapacity());
fTriples[fTriplesLen] = {first, second, result};
fTriplesLen++;
}
void StandardPluralRanges::setCapacity(int32_t length, UErrorCode& status) {
if (U_FAILURE(status)) { return; }
if (length > fTriples.getCapacity()) {
if (fTriples.resize(length, 0) == nullptr) {
status = U_MEMORY_ALLOCATION_ERROR;
}
}
}
StandardPlural::Form
StandardPluralRanges::resolve(StandardPlural::Form first, StandardPlural::Form second) const {
for (int32_t i=0; i<fTriplesLen; i++) {
const auto& triple = fTriples[i];
if (triple.first == first && triple.second == second) {
return triple.result;
}
}
// Default fallback
return StandardPlural::OTHER;
}
U_NAMESPACE_END
#endif /* #if !UCONFIG_NO_FORMATTING */
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