1 files changed, 198 insertions, 0 deletions
diff --git a/intl/icu/source/i18n/numrange_capi.cpp b/intl/icu/source/i18n/numrange_capi.cpp
new file mode 100644
index 0000000000..9222969eb4
--- /dev/null
+++ b/intl/icu/source/i18n/numrange_capi.cpp
@@ -0,0 +1,198 @@
+// © 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 "fphdlimp.h"
+#include "number_utypes.h"
+#include "numparse_types.h"
+#include "formattedval_impl.h"
+#include "numrange_impl.h"
+#include "number_decnum.h"
+#include "unicode/numberrangeformatter.h"
+#include "unicode/unumberrangeformatter.h"
+
+using namespace icu;
+using namespace icu::number;
+using namespace icu::number::impl;
+
+
+U_NAMESPACE_BEGIN
+namespace number {
+namespace impl {
+
+/**
+ * Implementation class for UNumberRangeFormatter. Wraps a LocalizedRangeNumberFormatter.
+ */
+struct UNumberRangeFormatterData : public UMemory,
+        // Magic number as ASCII == "NRF" (NumberRangeFormatter)
+        public IcuCApiHelper<UNumberRangeFormatter, UNumberRangeFormatterData, 0x4E524600> {
+    LocalizedNumberRangeFormatter fFormatter;
+};
+
+struct UFormattedNumberRangeImpl;
+
+// Magic number as ASCII == "FDN" (FormatteDNumber)
+typedef IcuCApiHelper<UFormattedNumberRange, UFormattedNumberRangeImpl, 0x46444E00> UFormattedNumberRangeApiHelper;
+
+struct UFormattedNumberRangeImpl : public UFormattedValueImpl, public UFormattedNumberRangeApiHelper {
+    UFormattedNumberRangeImpl();
+    ~UFormattedNumberRangeImpl();
+
+    FormattedNumberRange fImpl;
+    UFormattedNumberRangeData fData;
+};
+
+UFormattedNumberRangeImpl::UFormattedNumberRangeImpl()
+        : fImpl(&fData) {
+    fFormattedValue = &fImpl;
+}
+
+UFormattedNumberRangeImpl::~UFormattedNumberRangeImpl() {
+    // Disown the data from fImpl so it doesn't get deleted twice
+    fImpl.fData = nullptr;
+}
+
+} // namespace impl
+} // namespace number
+U_NAMESPACE_END
+
+
+UPRV_FORMATTED_VALUE_CAPI_NO_IMPLTYPE_AUTO_IMPL(
+    UFormattedNumberRange,
+    UFormattedNumberRangeImpl,
+    UFormattedNumberRangeApiHelper,
+    unumrf)
+
+
+const UFormattedNumberRangeData* number::impl::validateUFormattedNumberRange(
+        const UFormattedNumberRange* uresult, UErrorCode& status) {
+    auto* result = UFormattedNumberRangeApiHelper::validate(uresult, status);
+    if (U_FAILURE(status)) {
+        return nullptr;
+    }
+    return &result->fData;
+}
+
+
+U_CAPI UNumberRangeFormatter* U_EXPORT2
+unumrf_openForSkeletonWithCollapseAndIdentityFallback(
+        const char16_t* skeleton,
+        int32_t skeletonLen,
+        UNumberRangeCollapse collapse,
+        UNumberRangeIdentityFallback identityFallback,
+        const char* locale,
+        UParseError* perror,
+        UErrorCode* ec) {
+    auto* impl = new UNumberRangeFormatterData();
+    if (impl == nullptr) {
+        *ec = U_MEMORY_ALLOCATION_ERROR;
+        return nullptr;
+    }
+    // Readonly-alias constructor (first argument is whether we are NUL-terminated)
+    UnicodeString skeletonString(skeletonLen == -1, skeleton, skeletonLen);
+    UParseError tempParseError;
+    impl->fFormatter = NumberRangeFormatter::withLocale(locale)
+        .numberFormatterBoth(NumberFormatter::forSkeleton(skeletonString, (perror == nullptr) ? tempParseError : *perror, *ec))
+        .collapse(collapse)
+        .identityFallback(identityFallback);
+    return impl->exportForC();
+}
+
+U_CAPI void U_EXPORT2
+unumrf_formatDoubleRange(
+        const UNumberRangeFormatter* uformatter,
+        double first,
+        double second,
+        UFormattedNumberRange* uresult,
+        UErrorCode* ec) {
+    const UNumberRangeFormatterData* formatter = UNumberRangeFormatterData::validate(uformatter, *ec);
+    auto* result = UFormattedNumberRangeApiHelper::validate(uresult, *ec);
+    if (U_FAILURE(*ec)) { return; }
+
+    result->fData.resetString();
+    result->fData.quantity1.clear();
+    result->fData.quantity2.clear();
+    result->fData.quantity1.setToDouble(first);
+    result->fData.quantity2.setToDouble(second);
+    formatter->fFormatter.formatImpl(result->fData, first == second, *ec);
+}
+
+U_CAPI void U_EXPORT2
+unumrf_formatDecimalRange(
+        const UNumberRangeFormatter* uformatter,
+        const char* first, int32_t firstLen,
+        const char* second, int32_t secondLen,
+        UFormattedNumberRange* uresult,
+        UErrorCode* ec) {
+    const UNumberRangeFormatterData* formatter = UNumberRangeFormatterData::validate(uformatter, *ec);
+    auto* result = UFormattedNumberRangeApiHelper::validate(uresult, *ec);
+    if (U_FAILURE(*ec)) { return; }
+
+    result->fData.resetString();
+    result->fData.quantity1.clear();
+    result->fData.quantity2.clear();
+    result->fData.quantity1.setToDecNumber({first, firstLen}, *ec);
+    result->fData.quantity2.setToDecNumber({second, secondLen}, *ec);
+    formatter->fFormatter.formatImpl(result->fData, first == second, *ec);
+}
+
+U_CAPI UNumberRangeIdentityResult U_EXPORT2
+unumrf_resultGetIdentityResult(
+        const UFormattedNumberRange* uresult,
+        UErrorCode* ec) {
+    auto* result = UFormattedNumberRangeApiHelper::validate(uresult, *ec);
+    if (U_FAILURE(*ec)) {
+        return UNUM_IDENTITY_RESULT_COUNT;
+    }
+    return result->fData.identityResult;
+}
+
+U_CAPI int32_t U_EXPORT2
+unumrf_resultGetFirstDecimalNumber(
+        const UFormattedNumberRange* uresult,
+        char* dest,
+        int32_t destCapacity,
+        UErrorCode* ec) {
+    const auto* result = UFormattedNumberRangeApiHelper::validate(uresult, *ec);
+    if (U_FAILURE(*ec)) {
+        return 0;
+    }
+    DecNum decnum;
+    return result->fData.quantity1.toDecNum(decnum, *ec)
+        .toCharString(*ec)
+        .extract(dest, destCapacity, *ec);
+}
+
+U_CAPI int32_t U_EXPORT2
+unumrf_resultGetSecondDecimalNumber(
+        const UFormattedNumberRange* uresult,
+        char* dest,
+        int32_t destCapacity,
+        UErrorCode* ec) {
+    const auto* result = UFormattedNumberRangeApiHelper::validate(uresult, *ec);
+    if (U_FAILURE(*ec)) {
+        return 0;
+    }
+    DecNum decnum;
+    return result->fData.quantity2
+        .toDecNum(decnum, *ec)
+        .toCharString(*ec)
+        .extract(dest, destCapacity, *ec);
+}
+
+U_CAPI void U_EXPORT2
+unumrf_close(UNumberRangeFormatter* f) {
+    UErrorCode localStatus = U_ZERO_ERROR;
+    const UNumberRangeFormatterData* impl = UNumberRangeFormatterData::validate(f, localStatus);
+    delete impl;
+}
+
+
+#endif /* #if !UCONFIG_NO_FORMATTING */