Check in the pristine copy of ICU 4.6...

icu46/source/i18n/currpinf.cpp

+/*
+ *******************************************************************************
+ * Copyright (C) 2009-2010, 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/ures.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(NULL),
+    fPluralRules(NULL),
+    fLocale(NULL) {
+    initialize(Locale::getDefault(), status);
+}
+
+CurrencyPluralInfo::CurrencyPluralInfo(const Locale& locale, UErrorCode& status)
+:   fPluralCountToCurrencyUnitPattern(NULL),
+    fPluralRules(NULL),
+    fLocale(NULL) {
+    initialize(locale, status);
+}
+
+CurrencyPluralInfo::CurrencyPluralInfo(const CurrencyPluralInfo& info) 
+:   UObject(info),
+    fPluralCountToCurrencyUnitPattern(NULL),
+    fPluralRules(NULL),
+    fLocale(NULL) {
+    *this = info;
+}
+
+
+CurrencyPluralInfo&
+CurrencyPluralInfo::operator=(const CurrencyPluralInfo& info) {
+    if (this == &info) {
+        return *this;
+    }
+
+    deleteHash(fPluralCountToCurrencyUnitPattern);
+    UErrorCode status = U_ZERO_ERROR;
+    fPluralCountToCurrencyUnitPattern = initHash(status);
+    copyHash(info.fPluralCountToCurrencyUnitPattern, 
+             fPluralCountToCurrencyUnitPattern, status);
+    if ( U_FAILURE(status) ) {
+        return *this;
+    }
+
+    delete fPluralRules;
+    delete fLocale;
+    if (info.fPluralRules) {
+        fPluralRules = info.fPluralRules->clone();
+    } else {
+        fPluralRules = NULL;
+    }
+    if (info.fLocale) {
+        fLocale = info.fLocale->clone();
+    } else {
+        fLocale = NULL;
+    }
+    return *this;
+}
+
+
+CurrencyPluralInfo::~CurrencyPluralInfo() {
+    deleteHash(fPluralCountToCurrencyUnitPattern);
+    fPluralCountToCurrencyUnitPattern = NULL;
+    delete fPluralRules;
+    delete fLocale;
+    fPluralRules = NULL;
+    fLocale = NULL;
+}
+
+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 {
+    return new CurrencyPluralInfo(*this);
+}
+
+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 == NULL) {
+        // fall back to "other"
+        if (pluralCount.compare(gPluralCountOther)) {
+            currencyPluralPattern = 
+                (UnicodeString*)fPluralCountToCurrencyUnitPattern->get(gPluralCountOther);
+        }
+        if (currencyPluralPattern == NULL) {
+            // no currencyUnitPatterns defined, 
+            // fallback to predefined defult.
+            // 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)) {
+        if (fPluralRules) {
+            delete fPluralRules;
+        }
+        fPluralRules = PluralRules::createRules(ruleDescription, status);
+    }
+}
+
+
+void
+CurrencyPluralInfo::setCurrencyPluralPattern(const UnicodeString& pluralCount,
+                                             const UnicodeString& pattern,
+                                             UErrorCode& status) {
+    if (U_SUCCESS(status)) {
+        fPluralCountToCurrencyUnitPattern->put(pluralCount, new UnicodeString(pattern), 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 = loc.clone();
+    if (fPluralRules) {
+        delete fPluralRules;
+    }
+    fPluralRules = PluralRules::forLocale(loc, status);
+    setupCurrencyPluralPattern(loc, status);
+}
+
+   
+void
+CurrencyPluralInfo::setupCurrencyPluralPattern(const Locale& loc, UErrorCode& status) {
+    if (U_FAILURE(status)) {
+        return;
+    }
+
+    if (fPluralCountToCurrencyUnitPattern) {
+        deleteHash(fPluralCountToCurrencyUnitPattern);
+    }
+    fPluralCountToCurrencyUnitPattern = initHash(status);
+    if (U_FAILURE(status)) {
+        return;
+    }
+
+    UErrorCode ec = U_ZERO_ERROR;
+    UResourceBundle *rb = ures_open(NULL, loc.getName(), &ec);
+    rb = ures_getByKey(rb, gNumberElementsTag, rb, &ec);
+    rb = ures_getByKey(rb, gLatnTag, rb, &ec);
+    rb = ures_getByKey(rb, gPatternsTag, rb, &ec);
+    int32_t ptnLen;
+    const UChar* numberStylePattern = ures_getStringByKeyWithFallback(rb, gDecimalFormatTag, &ptnLen, &ec);
+    int32_t numberStylePatternLen = ptnLen;
+    const UChar* negNumberStylePattern = NULL;
+    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;
+            }
+        }
+    }
+    ures_close(rb);
+
+    if (U_FAILURE(ec)) {
+        return;
+    }
+
+    UResourceBundle *currRb = ures_open(U_ICUDATA_CURR, loc.getName(), &ec);
+    UResourceBundle *currencyRes = ures_getByKeyWithFallback(currRb, gCurrUnitPtnTag, NULL, &ec);
+    
+#ifdef CURRENCY_PLURAL_INFO_DEBUG
+    std::cout << "in set up\n";
+#endif
+    StringEnumeration* keywords = fPluralRules->getKeywords(ec);
+    if (U_SUCCESS(ec)) {
+        const char* pluralCount;
+        while ((pluralCount = keywords->next(NULL, ec)) != NULL) {
+            if ( U_SUCCESS(ec) ) {
+                int32_t ptnLen;
+                UErrorCode err = U_ZERO_ERROR;
+                const UChar* patternChars = ures_getStringByKeyWithFallback(
+                    currencyRes, pluralCount, &ptnLen, &err);
+                if (U_SUCCESS(err) && ptnLen > 0) {
+                    UnicodeString* pattern = new UnicodeString(patternChars, ptnLen);
+#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(gPart0, 
+                      UnicodeString(numberStylePattern, numberStylePatternLen));
+                    pattern->findAndReplace(gPart1, gTripleCurrencySign);
+
+                    if (hasSeparator) {
+                        UnicodeString negPattern(patternChars, ptnLen);
+                        negPattern.findAndReplace(gPart0, 
+                          UnicodeString(negNumberStylePattern, negNumberStylePatternLen));
+                        negPattern.findAndReplace(gPart1, gTripleCurrencySign);
+                        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
+
+                    fPluralCountToCurrencyUnitPattern->put(UnicodeString(pluralCount), pattern, status);
+                }
+            }
+        }
+    }
+    delete keywords;
+    ures_close(currencyRes);
+    ures_close(currRb);
+}
+
+
+
+void
+CurrencyPluralInfo::deleteHash(Hashtable* hTable) 
+{
+    if ( hTable == NULL ) {
+        return;
+    }
+    int32_t pos = -1;
+    const UHashElement* element = NULL;
+    while ( (element = hTable->nextElement(pos)) != NULL ) {
+        const UHashTok keyTok = element->key;
+        const UHashTok valueTok = element->value;
+        const UnicodeString* value = (UnicodeString*)valueTok.pointer;
+        delete value;
+    }
+    delete hTable;
+    hTable = NULL;
+}
+
+
+Hashtable*
+CurrencyPluralInfo::initHash(UErrorCode& status) {
+    if ( U_FAILURE(status) ) {
+        return NULL;
+    }
+    Hashtable* hTable;
+    if ( (hTable = new Hashtable(TRUE, status)) == NULL ) {
+        status = U_MEMORY_ALLOCATION_ERROR;
+        return NULL;
+    }
+    hTable->setValueComparator(ValueComparator);
+    return hTable;
+}
+
+
+void
+CurrencyPluralInfo::copyHash(const Hashtable* source,
+                           Hashtable* target,
+                           UErrorCode& status) {
+    if ( U_FAILURE(status) ) {
+        return;
+    }
+    int32_t pos = -1;
+    const UHashElement* element = NULL;
+    if ( source ) {
+        while ( (element = source->nextElement(pos)) != NULL ) {
+            const UHashTok keyTok = element->key;
+            const UnicodeString* key = (UnicodeString*)keyTok.pointer;
+            const UHashTok valueTok = element->value;
+            const UnicodeString* value = (UnicodeString*)valueTok.pointer;
+            UnicodeString* copy = new UnicodeString(*value);
+            target->put(UnicodeString(*key), copy, status);
+            if ( U_FAILURE(status) ) {
+                return;
+            }
+        }
+    }
+}
+
+
+U_NAMESPACE_END
+
+#endif