1 files changed, 441 insertions, 0 deletions
diff --git a/intl/icu/source/i18n/currpinf.cpp b/intl/icu/source/i18n/currpinf.cpp
new file mode 100644
index 0000000000..af9c837af8
--- /dev/null
+++ b/intl/icu/source/i18n/currpinf.cpp
@@ -0,0 +1,441 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+ *******************************************************************************
+ * Copyright (C) 2009-2014, International Business Machines Corporation and
+ * others. All Rights Reserved.
+ *******************************************************************************
+ */
+
+#include "unicode/currpinf.h"
+
+#if !UCONFIG_NO_FORMATTING
+
+//#define CURRENCY_PLURAL_INFO_DEBUG 1
+
+#ifdef CURRENCY_PLURAL_INFO_DEBUG
+#include <iostream>
+#endif
+
+#include "unicode/locid.h"
+#include "unicode/plurrule.h"
+#include "unicode/strenum.h"
+#include "unicode/ures.h"
+#include "unicode/numsys.h"
+#include "cstring.h"
+#include "hash.h"
+#include "uresimp.h"
+#include "ureslocs.h"
+
+U_NAMESPACE_BEGIN
+
+static const UChar gNumberPatternSeparator = 0x3B; // ;
+
+U_CDECL_BEGIN
+
+/**
+ * @internal ICU 4.2
+ */
+static UBool U_CALLCONV ValueComparator(UHashTok val1, UHashTok val2);
+
+UBool
+U_CALLCONV ValueComparator(UHashTok val1, UHashTok val2) {
+    const UnicodeString* affix_1 = (UnicodeString*)val1.pointer;
+    const UnicodeString* affix_2 = (UnicodeString*)val2.pointer;
+    return  *affix_1 == *affix_2;
+}
+
+U_CDECL_END
+
+
+UOBJECT_DEFINE_RTTI_IMPLEMENTATION(CurrencyPluralInfo)
+
+static const UChar gDefaultCurrencyPluralPattern[] = {'0', '.', '#', '#', ' ', 0xA4, 0xA4, 0xA4, 0};
+static const UChar gTripleCurrencySign[] = {0xA4, 0xA4, 0xA4, 0};
+static const UChar gPluralCountOther[] = {0x6F, 0x74, 0x68, 0x65, 0x72, 0};
+static const UChar gPart0[] = {0x7B, 0x30, 0x7D, 0};
+static const UChar gPart1[] = {0x7B, 0x31, 0x7D, 0};
+
+static const char gNumberElementsTag[]="NumberElements";
+static const char gLatnTag[]="latn";
+static const char gPatternsTag[]="patterns";
+static const char gDecimalFormatTag[]="decimalFormat";
+static const char gCurrUnitPtnTag[]="CurrencyUnitPatterns";
+
+CurrencyPluralInfo::CurrencyPluralInfo(UErrorCode& status)
+:   fPluralCountToCurrencyUnitPattern(nullptr),
+    fPluralRules(nullptr),
+    fLocale(nullptr),
+    fInternalStatus(U_ZERO_ERROR) {
+    initialize(Locale::getDefault(), status);
+}
+
+CurrencyPluralInfo::CurrencyPluralInfo(const Locale& locale, UErrorCode& status)
+:   fPluralCountToCurrencyUnitPattern(nullptr),
+    fPluralRules(nullptr),
+    fLocale(nullptr),
+    fInternalStatus(U_ZERO_ERROR) {
+    initialize(locale, status);
+}
+
+CurrencyPluralInfo::CurrencyPluralInfo(const CurrencyPluralInfo& info) 
+:   UObject(info),
+    fPluralCountToCurrencyUnitPattern(nullptr),
+    fPluralRules(nullptr),
+    fLocale(nullptr),
+    fInternalStatus(U_ZERO_ERROR) {
+    *this = info;
+}
+
+CurrencyPluralInfo&
+CurrencyPluralInfo::operator=(const CurrencyPluralInfo& info) {
+    if (this == &info) {
+        return *this;
+    }
+
+    fInternalStatus = info.fInternalStatus;
+    if (U_FAILURE(fInternalStatus)) {
+        // bail out early if the object we were copying from was already 'invalid'.
+        return *this;
+    }
+
+    deleteHash(fPluralCountToCurrencyUnitPattern);
+    fPluralCountToCurrencyUnitPattern = initHash(fInternalStatus);
+    copyHash(info.fPluralCountToCurrencyUnitPattern, 
+             fPluralCountToCurrencyUnitPattern, fInternalStatus);
+    if ( U_FAILURE(fInternalStatus) ) {
+        return *this;
+    }
+
+    delete fPluralRules;
+    fPluralRules = nullptr;
+    delete fLocale;
+    fLocale = nullptr;
+
+    if (info.fPluralRules != nullptr) {
+        fPluralRules = info.fPluralRules->clone();
+        if (fPluralRules == nullptr) {
+            fInternalStatus = U_MEMORY_ALLOCATION_ERROR;
+            return *this;
+        }
+    }
+    if (info.fLocale != nullptr) {
+        fLocale = info.fLocale->clone();
+        if (fLocale == nullptr) {
+            // Note: If clone had an error parameter, then we could check/set that instead.
+            fInternalStatus = U_MEMORY_ALLOCATION_ERROR;
+            return *this;
+        }
+        // If the other locale wasn't bogus, but our clone'd locale is bogus, then OOM happened
+        // during the call to clone().
+        if (!info.fLocale->isBogus() && fLocale->isBogus()) {
+            fInternalStatus = U_MEMORY_ALLOCATION_ERROR;
+            return *this;
+        }
+    }
+    return *this;
+}
+
+CurrencyPluralInfo::~CurrencyPluralInfo() {
+    deleteHash(fPluralCountToCurrencyUnitPattern);
+    fPluralCountToCurrencyUnitPattern = nullptr;
+    delete fPluralRules;
+    delete fLocale;
+    fPluralRules = nullptr;
+    fLocale = nullptr;
+}
+
+UBool
+CurrencyPluralInfo::operator==(const CurrencyPluralInfo& info) const {
+#ifdef CURRENCY_PLURAL_INFO_DEBUG
+    if (*fPluralRules == *info.fPluralRules) {
+        std::cout << "same plural rules\n";
+    }
+    if (*fLocale == *info.fLocale) {
+        std::cout << "same locale\n";
+    }
+    if (fPluralCountToCurrencyUnitPattern->equals(*info.fPluralCountToCurrencyUnitPattern)) {
+        std::cout << "same pattern\n";
+    }
+#endif
+    return *fPluralRules == *info.fPluralRules &&
+           *fLocale == *info.fLocale &&
+           fPluralCountToCurrencyUnitPattern->equals(*info.fPluralCountToCurrencyUnitPattern);
+}
+
+
+CurrencyPluralInfo*
+CurrencyPluralInfo::clone() const {
+    CurrencyPluralInfo* newObj = new CurrencyPluralInfo(*this);
+    // Since clone doesn't have a 'status' parameter, the best we can do is return nullptr
+    // if the new object was not full constructed properly (an error occurred).
+    if (newObj != nullptr && U_FAILURE(newObj->fInternalStatus)) {
+        delete newObj;
+        newObj = nullptr;
+    }
+    return newObj;
+}
+
+const PluralRules* 
+CurrencyPluralInfo::getPluralRules() const {
+    return fPluralRules;
+}
+
+UnicodeString&
+CurrencyPluralInfo::getCurrencyPluralPattern(const UnicodeString&  pluralCount,
+                                             UnicodeString& result) const {
+    const UnicodeString* currencyPluralPattern = 
+        (UnicodeString*)fPluralCountToCurrencyUnitPattern->get(pluralCount);
+    if (currencyPluralPattern == nullptr) {
+        // fall back to "other"
+        if (pluralCount.compare(gPluralCountOther, 5)) {
+            currencyPluralPattern = 
+                (UnicodeString*)fPluralCountToCurrencyUnitPattern->get(UnicodeString(TRUE, gPluralCountOther, 5));
+        }
+        if (currencyPluralPattern == nullptr) {
+            // no currencyUnitPatterns defined, 
+            // fallback to predefined default.
+            // This should never happen when ICU resource files are
+            // available, since currencyUnitPattern of "other" is always
+            // defined in root.
+            result = UnicodeString(gDefaultCurrencyPluralPattern);
+            return result;
+        }
+    }
+    result = *currencyPluralPattern;
+    return result;
+}
+
+const Locale&
+CurrencyPluralInfo::getLocale() const {
+    return *fLocale;
+}
+
+void
+CurrencyPluralInfo::setPluralRules(const UnicodeString& ruleDescription,
+                                   UErrorCode& status) {
+    if (U_SUCCESS(status)) {
+        delete fPluralRules;
+        fPluralRules = PluralRules::createRules(ruleDescription, status);
+    }
+}
+
+void
+CurrencyPluralInfo::setCurrencyPluralPattern(const UnicodeString& pluralCount,
+                                             const UnicodeString& pattern,
+                                             UErrorCode& status) {
+    if (U_SUCCESS(status)) {
+        UnicodeString* oldValue = static_cast<UnicodeString*>(
+            fPluralCountToCurrencyUnitPattern->get(pluralCount));
+        delete oldValue;
+        LocalPointer<UnicodeString> p(new UnicodeString(pattern), status);
+        if (U_SUCCESS(status)) {
+            // the p object allocated above will be owned by fPluralCountToCurrencyUnitPattern
+            // after the call to put(), even if the method returns failure.
+            fPluralCountToCurrencyUnitPattern->put(pluralCount, p.orphan(), status);
+        }
+    }
+}
+
+void
+CurrencyPluralInfo::setLocale(const Locale& loc, UErrorCode& status) {
+    initialize(loc, status);
+}
+
+void 
+CurrencyPluralInfo::initialize(const Locale& loc, UErrorCode& status) {
+    if (U_FAILURE(status)) {
+        return;
+    }
+    delete fLocale;
+    fLocale = nullptr;    
+    delete fPluralRules;
+    fPluralRules = nullptr;
+
+    fLocale = loc.clone();
+    if (fLocale == nullptr) {
+        status = U_MEMORY_ALLOCATION_ERROR;
+        return;
+    }
+    // If the locale passed in wasn't bogus, but our clone'd locale is bogus, then OOM happened
+    // during the call to loc.clone().
+    if (!loc.isBogus() && fLocale->isBogus()) {
+        status = U_MEMORY_ALLOCATION_ERROR;
+        return;
+    }
+    fPluralRules = PluralRules::forLocale(loc, status);
+    setupCurrencyPluralPattern(loc, status);
+}
+   
+void
+CurrencyPluralInfo::setupCurrencyPluralPattern(const Locale& loc, UErrorCode& status) {
+    if (U_FAILURE(status)) {
+        return;
+    }
+
+    deleteHash(fPluralCountToCurrencyUnitPattern);
+    fPluralCountToCurrencyUnitPattern = initHash(status);
+    if (U_FAILURE(status)) {
+        return;
+    }
+
+    LocalPointer<NumberingSystem> ns(NumberingSystem::createInstance(loc, status), status);
+    if (U_FAILURE(status)) {
+        return;
+    }
+    UErrorCode ec = U_ZERO_ERROR;
+    LocalUResourceBundlePointer rb(ures_open(nullptr, loc.getName(), &ec));
+    LocalUResourceBundlePointer numElements(ures_getByKeyWithFallback(rb.getAlias(), gNumberElementsTag, nullptr, &ec));
+    ures_getByKeyWithFallback(numElements.getAlias(), ns->getName(), rb.getAlias(), &ec);
+    ures_getByKeyWithFallback(rb.getAlias(), gPatternsTag, rb.getAlias(), &ec);
+    int32_t ptnLen;
+    const UChar* numberStylePattern = ures_getStringByKeyWithFallback(rb.getAlias(), gDecimalFormatTag, &ptnLen, &ec);
+    // Fall back to "latn" if num sys specific pattern isn't there.
+    if ( ec == U_MISSING_RESOURCE_ERROR && (uprv_strcmp(ns->getName(), gLatnTag) != 0)) {
+        ec = U_ZERO_ERROR;
+        ures_getByKeyWithFallback(numElements.getAlias(), gLatnTag, rb.getAlias(), &ec);
+        ures_getByKeyWithFallback(rb.getAlias(), gPatternsTag, rb.getAlias(), &ec);
+        numberStylePattern = ures_getStringByKeyWithFallback(rb.getAlias(), gDecimalFormatTag, &ptnLen, &ec);
+    }
+    int32_t numberStylePatternLen = ptnLen;
+    const UChar* negNumberStylePattern = nullptr;
+    int32_t negNumberStylePatternLen = 0;
+    // TODO: Java
+    // parse to check whether there is ";" separator in the numberStylePattern
+    UBool hasSeparator = false;
+    if (U_SUCCESS(ec)) {
+        for (int32_t styleCharIndex = 0; styleCharIndex < ptnLen; ++styleCharIndex) {
+            if (numberStylePattern[styleCharIndex] == gNumberPatternSeparator) {
+                hasSeparator = true;
+                // split the number style pattern into positive and negative
+                negNumberStylePattern = numberStylePattern + styleCharIndex + 1;
+                negNumberStylePatternLen = ptnLen - styleCharIndex - 1;
+                numberStylePatternLen = styleCharIndex;
+            }
+        }
+    }
+
+    if (U_FAILURE(ec)) {
+        // If OOM occurred during the above code, then we want to report that back to the caller.
+        if (ec == U_MEMORY_ALLOCATION_ERROR) {
+            status = ec;
+        }
+        return;
+    }
+
+    LocalUResourceBundlePointer currRb(ures_open(U_ICUDATA_CURR, loc.getName(), &ec));
+    LocalUResourceBundlePointer currencyRes(ures_getByKeyWithFallback(currRb.getAlias(), gCurrUnitPtnTag, nullptr, &ec));
+    
+#ifdef CURRENCY_PLURAL_INFO_DEBUG
+    std::cout << "in set up\n";
+#endif
+    LocalPointer<StringEnumeration> keywords(fPluralRules->getKeywords(ec), ec);
+    if (U_SUCCESS(ec)) {
+        const char* pluralCount;
+        while (((pluralCount = keywords->next(nullptr, ec)) != nullptr) && U_SUCCESS(ec)) {
+            int32_t ptnLength;
+            UErrorCode err = U_ZERO_ERROR;
+            const UChar* patternChars = ures_getStringByKeyWithFallback(currencyRes.getAlias(), pluralCount, &ptnLength, &err);
+            if (err == U_MEMORY_ALLOCATION_ERROR || patternChars == nullptr) {
+                ec = err;
+                break;
+            }
+            if (U_SUCCESS(err) && ptnLength > 0) {
+                UnicodeString* pattern = new UnicodeString(patternChars, ptnLength);
+                if (pattern == nullptr) {
+                    ec = U_MEMORY_ALLOCATION_ERROR;
+                    break;
+                }
+#ifdef CURRENCY_PLURAL_INFO_DEBUG
+                char result_1[1000];
+                pattern->extract(0, pattern->length(), result_1, "UTF-8");
+                std::cout << "pluralCount: " << pluralCount << "; pattern: " << result_1 << "\n";
+#endif
+                pattern->findAndReplace(UnicodeString(TRUE, gPart0, 3), 
+                    UnicodeString(numberStylePattern, numberStylePatternLen));
+                pattern->findAndReplace(UnicodeString(TRUE, gPart1, 3), UnicodeString(TRUE, gTripleCurrencySign, 3));
+
+                if (hasSeparator) {
+                    UnicodeString negPattern(patternChars, ptnLength);
+                    negPattern.findAndReplace(UnicodeString(TRUE, gPart0, 3), 
+                        UnicodeString(negNumberStylePattern, negNumberStylePatternLen));
+                    negPattern.findAndReplace(UnicodeString(TRUE, gPart1, 3), UnicodeString(TRUE, gTripleCurrencySign, 3));
+                    pattern->append(gNumberPatternSeparator);
+                    pattern->append(negPattern);
+                }
+#ifdef CURRENCY_PLURAL_INFO_DEBUG
+                pattern->extract(0, pattern->length(), result_1, "UTF-8");
+                std::cout << "pluralCount: " << pluralCount << "; pattern: " << result_1 << "\n";
+#endif
+                // the 'pattern' object allocated above will be owned by the fPluralCountToCurrencyUnitPattern after the call to
+                // put(), even if the method returns failure.
+                fPluralCountToCurrencyUnitPattern->put(UnicodeString(pluralCount, -1, US_INV), pattern, status);
+            }
+        }
+    }
+    // If OOM occurred during the above code, then we want to report that back to the caller.
+    if (ec == U_MEMORY_ALLOCATION_ERROR) {
+        status = ec;
+    }
+}
+
+void
+CurrencyPluralInfo::deleteHash(Hashtable* hTable) {
+    if ( hTable == nullptr ) {
+        return;
+    }
+    int32_t pos = UHASH_FIRST;
+    const UHashElement* element = nullptr;
+    while ( (element = hTable->nextElement(pos)) != nullptr ) {
+        const UHashTok valueTok = element->value;
+        const UnicodeString* value = (UnicodeString*)valueTok.pointer;
+        delete value;
+    }
+    delete hTable;
+    hTable = nullptr;
+}
+
+Hashtable*
+CurrencyPluralInfo::initHash(UErrorCode& status) {
+    if (U_FAILURE(status)) {
+        return nullptr;
+    }
+    LocalPointer<Hashtable> hTable(new Hashtable(TRUE, status), status);
+    if (U_FAILURE(status)) {
+        return nullptr;
+    }
+    hTable->setValueComparator(ValueComparator);
+    return hTable.orphan();
+}
+
+void
+CurrencyPluralInfo::copyHash(const Hashtable* source,
+                           Hashtable* target,
+                           UErrorCode& status) {
+    if (U_FAILURE(status)) {
+        return;
+    }
+    int32_t pos = UHASH_FIRST;
+    const UHashElement* element = nullptr;
+    if (source) {
+        while ( (element = source->nextElement(pos)) != nullptr ) {
+            const UHashTok keyTok = element->key;
+            const UnicodeString* key = (UnicodeString*)keyTok.pointer;
+            const UHashTok valueTok = element->value;
+            const UnicodeString* value = (UnicodeString*)valueTok.pointer;
+            LocalPointer<UnicodeString> copy(new UnicodeString(*value), status);
+            if (U_FAILURE(status)) {
+                return;
+            }
+            // The HashTable owns the 'copy' object after the call to put().
+            target->put(UnicodeString(*key), copy.orphan(), status);
+            if (U_FAILURE(status)) {
+                return;
+            }
+        }
+    }
+}
+
+U_NAMESPACE_END
+
+#endif