The Tor Browser: intl/icu/source/i18n/numfmt.cpp@6474c204b198 (annotated)

intl/icu/source/i18n/numfmt.cpp@6474c204b198 (annotated)

intl/icu/source/i18n/numfmt.cpp

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 /*
 *******************************************************************************
 * Copyright (C) 1997-2013, International Business Machines Corporation and
 * others. All Rights Reserved.
 *******************************************************************************
 *
 * File NUMFMT.CPP
 *
 * Modification History:
 *
 *   Date        Name        Description
 *   02/19/97    aliu        Converted from java.
 *   03/18/97    clhuang     Implemented with C++ APIs.
 *   04/17/97    aliu        Enlarged MAX_INTEGER_DIGITS to fully accomodate the
 *                           largest double, by default.
 *                           Changed DigitCount to int per code review.
 *    07/20/98    stephen        Changed operator== to check for grouping
 *                            Changed setMaxIntegerDigits per Java implementation.
 *                            Changed setMinIntegerDigits per Java implementation.
 *                            Changed setMinFractionDigits per Java implementation.
 *                            Changed setMaxFractionDigits per Java implementation.
 ********************************************************************************
 */
 #include "unicode/utypes.h"
 #if !UCONFIG_NO_FORMATTING
 #include "unicode/numfmt.h"
 #include "unicode/locid.h"
 #include "unicode/dcfmtsym.h"
 #include "unicode/decimfmt.h"
 #include "unicode/ustring.h"
 #include "unicode/ucurr.h"
 #include "unicode/curramt.h"
 #include "unicode/numsys.h"
 #include "unicode/rbnf.h"
 #include "unicode/localpointer.h"
 #include "charstr.h"
 #include "winnmfmt.h"
 #include "uresimp.h"
 #include "uhash.h"
 #include "cmemory.h"
 #include "servloc.h"
 #include "ucln_in.h"
 #include "cstring.h"
 #include "putilimp.h"
 #include "uassert.h"
 #include "umutex.h"
 #include "mutex.h"
 #include "digitlst.h"
 #include <float.h>
 //#define FMT_DEBUG
 #ifdef FMT_DEBUG
 #include <stdio.h>
 static inline void debugout(UnicodeString s) {
     char buf[2000];
     s.extract((int32_t) 0, s.length(), buf);
     printf("%s", buf);
 }
 #define debug(x) printf("%s", x);
 #else
 #define debugout(x)
 #define debug(x)
 #endif
 // If no number pattern can be located for a locale, this is the last
 // resort.
 static const UChar gLastResortDecimalPat[] = {
 x23, 0x30, 0x2E, 0x23, 0x23, 0x23, 0x3B, 0x2D, 0x23, 0x30, 0x2E, 0x23, 0x23, 0x23, 0 /* "#0.###;-#0.###" */
 };
 static const UChar gLastResortCurrencyPat[] = {
 x24, 0x23, 0x30, 0x2E, 0x30, 0x30, 0x3B, 0x28, 0x24, 0x23, 0x30, 0x2E, 0x30, 0x30, 0x29, 0 /* "$#0.00;($#0.00)" */
 };
 static const UChar gLastResortPercentPat[] = {
 x23, 0x30, 0x25, 0 /* "#0%" */
 };
 static const UChar gLastResortScientificPat[] = {
 x23, 0x45, 0x30, 0 /* "#E0" */
 };
 static const UChar gLastResortIsoCurrencyPat[] = {
 xA4, 0xA4, 0x23, 0x30, 0x2E, 0x30, 0x30, 0x3B, 0x28, 0xA4, 0xA4, 0x23, 0x30, 0x2E, 0x30, 0x30, 0x29, 0 /* "\u00A4\u00A4#0.00;(\u00A4\u00A4#0.00)" */
 };
 static const UChar gLastResortPluralCurrencyPat[] = {
 x23, 0x30, 0x2E, 0x30, 0x30, 0xA0, 0xA4, 0xA4, 0xA4, 0 /* "#0.00\u00A0\u00A4\u00A4\u00A4*/
 };
 static const UChar gSingleCurrencySign[] = {0xA4, 0};
 static const UChar gDoubleCurrencySign[] = {0xA4, 0xA4, 0};
 static const UChar gSlash = 0x2f;
 // If the maximum base 10 exponent were 4, then the largest number would
 // be 99,999 which has 5 digits.
 // On IEEE754 systems gMaxIntegerDigits is 308 + possible denormalized 15 digits + rounding digit
 // With big decimal, the max exponent is 999,999,999 and the max number of digits is the same, 999,999,999
 const int32_t icu::NumberFormat::gDefaultMaxIntegerDigits = 2000000000;
 const int32_t icu::NumberFormat::gDefaultMinIntegerDigits = 127;
 static const UChar * const gLastResortNumberPatterns[UNUM_FORMAT_STYLE_COUNT] = {
     NULL,  // UNUM_PATTERN_DECIMAL
     gLastResortDecimalPat,  // UNUM_DECIMAL
     gLastResortCurrencyPat,  // UNUM_CURRENCY
     gLastResortPercentPat,  // UNUM_PERCENT
     gLastResortScientificPat,  // UNUM_SCIENTIFIC
     NULL,  // UNUM_SPELLOUT
     NULL,  // UNUM_ORDINAL
     NULL,  // UNUM_DURATION
     NULL,  // UNUM_NUMBERING_SYSTEM
     NULL,  // UNUM_PATTERN_RULEBASED
     gLastResortIsoCurrencyPat,  // UNUM_CURRENCY_ISO
     gLastResortPluralCurrencyPat  // UNUM_CURRENCY_PLURAL
 };
 // Keys used for accessing resource bundles
 static const char *gNumberElements = "NumberElements";
 static const char *gLatn = "latn";
 static const char *gPatterns = "patterns";
 static const char *gFormatKeys[UNUM_FORMAT_STYLE_COUNT] = {
     NULL,  // UNUM_PATTERN_DECIMAL
     "decimalFormat",  // UNUM_DECIMAL
     "currencyFormat",  // UNUM_CURRENCY
     "percentFormat",  // UNUM_PERCENT
     "scientificFormat",  // UNUM_SCIENTIFIC
     NULL,  // UNUM_SPELLOUT
     NULL,  // UNUM_ORDINAL
     NULL,  // UNUM_DURATION
     NULL,  // UNUM_NUMBERING_SYSTEM
     NULL,  // UNUM_PATTERN_RULEBASED
     // For UNUM_CURRENCY_ISO and UNUM_CURRENCY_PLURAL,
     // the pattern is the same as the pattern of UNUM_CURRENCY
     // except for replacing the single currency sign with
     // double currency sign or triple currency sign.
     "currencyFormat",  // UNUM_CURRENCY_ISO
     "currencyFormat"  // UNUM_CURRENCY_PLURAL
 };
 // Static hashtable cache of NumberingSystem objects used by NumberFormat
 static UHashtable * NumberingSystem_cache = NULL;
 static UMutex nscacheMutex = U_MUTEX_INITIALIZER;
 static icu::UInitOnce gNSCacheInitOnce = U_INITONCE_INITIALIZER;
 #if !UCONFIG_NO_SERVICE
 static icu::ICULocaleService* gService = NULL;
 static icu::UInitOnce gServiceInitOnce = U_INITONCE_INITIALIZER;
 #endif
 /**
  * Release all static memory held by Number Format.
  */
 U_CDECL_BEGIN
 static void U_CALLCONV
 deleteNumberingSystem(void *obj) {
     delete (icu::NumberingSystem *)obj;
 }
 static UBool U_CALLCONV numfmt_cleanup(void) {
 #if !UCONFIG_NO_SERVICE
     gServiceInitOnce.reset();
     if (gService) {
         delete gService;
         gService = NULL;
     }
 #endif
     gNSCacheInitOnce.reset();
     if (NumberingSystem_cache) {
         // delete NumberingSystem_cache;
         uhash_close(NumberingSystem_cache);
         NumberingSystem_cache = NULL;
     }
     return TRUE;
 }
 U_CDECL_END
 // *****************************************************************************
 // class NumberFormat
 // *****************************************************************************
 U_NAMESPACE_BEGIN
 UOBJECT_DEFINE_ABSTRACT_RTTI_IMPLEMENTATION(NumberFormat)
 #if !UCONFIG_NO_SERVICE
 // -------------------------------------
 // SimpleNumberFormatFactory implementation
 NumberFormatFactory::~NumberFormatFactory() {}
 SimpleNumberFormatFactory::SimpleNumberFormatFactory(const Locale& locale, UBool visible)
     : _visible(visible)
 {
     LocaleUtility::initNameFromLocale(locale, _id);
 }
 SimpleNumberFormatFactory::~SimpleNumberFormatFactory() {}
 UBool SimpleNumberFormatFactory::visible(void) const {
     return _visible;
 }
 const UnicodeString *
 SimpleNumberFormatFactory::getSupportedIDs(int32_t &count, UErrorCode& status) const
 {
     if (U_SUCCESS(status)) {
         count = 1;
         return &_id;
     }
     count = 0;
     return NULL;
 }
 #endif /* #if !UCONFIG_NO_SERVICE */
 // -------------------------------------
 // default constructor
 NumberFormat::NumberFormat()
 :   fGroupingUsed(TRUE),
     fMaxIntegerDigits(gDefaultMaxIntegerDigits),
     fMinIntegerDigits(1),
     fMaxFractionDigits(3), // invariant, >= minFractionDigits
     fMinFractionDigits(0),
     fParseIntegerOnly(FALSE),
     fLenient(FALSE)
 {
     fCurrency[0] = 0;
 }
 // -------------------------------------
 NumberFormat::~NumberFormat()
 {
 }
 // -------------------------------------
 // copy constructor
 NumberFormat::NumberFormat(const NumberFormat &source)
 :   Format(source)
 {
     *this = source;
 }
 // -------------------------------------
 // assignment operator
 NumberFormat&
 NumberFormat::operator=(const NumberFormat& rhs)
 {
     if (this != &rhs)
     {
         Format::operator=(rhs);
         fGroupingUsed = rhs.fGroupingUsed;
         fMaxIntegerDigits = rhs.fMaxIntegerDigits;
         fMinIntegerDigits = rhs.fMinIntegerDigits;
         fMaxFractionDigits = rhs.fMaxFractionDigits;
         fMinFractionDigits = rhs.fMinFractionDigits;
         fParseIntegerOnly = rhs.fParseIntegerOnly;
         u_strncpy(fCurrency, rhs.fCurrency, 4);
         fLenient = rhs.fLenient;
     }
     return *this;
 }
 // -------------------------------------
 UBool
 NumberFormat::operator==(const Format& that) const
 {
     // Format::operator== guarantees this cast is safe
     NumberFormat* other = (NumberFormat*)&that;
 #ifdef FMT_DEBUG
     // This code makes it easy to determine why two format objects that should
     // be equal aren't.
     UBool first = TRUE;
     if (!Format::operator==(that)) {
         if (first) { printf("[ "); first = FALSE; } else { printf(", "); }
         debug("Format::!=");
     }
     if (!(fMaxIntegerDigits == other->fMaxIntegerDigits &&
           fMinIntegerDigits == other->fMinIntegerDigits)) {
         if (first) { printf("[ "); first = FALSE; } else { printf(", "); }
         debug("Integer digits !=");
     }
     if (!(fMaxFractionDigits == other->fMaxFractionDigits &&
           fMinFractionDigits == other->fMinFractionDigits)) {
         if (first) { printf("[ "); first = FALSE; } else { printf(", "); }
         debug("Fraction digits !=");
     }
     if (!(fGroupingUsed == other->fGroupingUsed)) {
         if (first) { printf("[ "); first = FALSE; } else { printf(", "); }
         debug("fGroupingUsed != ");
     }
     if (!(fParseIntegerOnly == other->fParseIntegerOnly)) {
         if (first) { printf("[ "); first = FALSE; } else { printf(", "); }
         debug("fParseIntegerOnly != ");
     }
     if (!(u_strcmp(fCurrency, other->fCurrency) == 0)) {
         if (first) { printf("[ "); first = FALSE; } else { printf(", "); }
         debug("fCurrency !=");
     }
     if (!(fLenient == other->fLenient)) {
         if (first) { printf("[ "); first = FALSE; } else { printf(", "); }
         debug("fLenient != ");
     }
     if (!first) { printf(" ]"); }
 #endif
     return ((this == &that) ||
             ((Format::operator==(that) &&
               fMaxIntegerDigits == other->fMaxIntegerDigits &&
               fMinIntegerDigits == other->fMinIntegerDigits &&
               fMaxFractionDigits == other->fMaxFractionDigits &&
               fMinFractionDigits == other->fMinFractionDigits &&
               fGroupingUsed == other->fGroupingUsed &&
               fParseIntegerOnly == other->fParseIntegerOnly &&
               u_strcmp(fCurrency, other->fCurrency) == 0 &&
               fLenient == other->fLenient)));
 }
 // -------------------------------------
 // Default implementation sets unsupported error; subclasses should
 // override.
 UnicodeString&
 NumberFormat::format(double /* unused number */,
                      UnicodeString& toAppendTo,
                      FieldPositionIterator* /* unused posIter */,
                      UErrorCode& status) const
 {
     if (!U_FAILURE(status)) {
         status = U_UNSUPPORTED_ERROR;
     }
     return toAppendTo;
 }
 // -------------------------------------
 // Default implementation sets unsupported error; subclasses should
 // override.
 UnicodeString&
 NumberFormat::format(int32_t /* unused number */,
                      UnicodeString& toAppendTo,
                      FieldPositionIterator* /* unused posIter */,
                      UErrorCode& status) const
 {
     if (!U_FAILURE(status)) {
         status = U_UNSUPPORTED_ERROR;
     }
     return toAppendTo;
 }
 // -------------------------------------
 // Default implementation sets unsupported error; subclasses should
 // override.
 UnicodeString&
 NumberFormat::format(int64_t /* unused number */,
                      UnicodeString& toAppendTo,
                      FieldPositionIterator* /* unused posIter */,
                      UErrorCode& status) const
 {
     if (!U_FAILURE(status)) {
         status = U_UNSUPPORTED_ERROR;
     }
     return toAppendTo;
 }
 // ------------------------------------------
 // These functions add the status code, just fall back to the non-status versions
 UnicodeString&
 NumberFormat::format(double number,
                      UnicodeString& appendTo,
                      FieldPosition& pos,
                      UErrorCode &status) const {
     if(U_SUCCESS(status)) {
         return format(number,appendTo,pos);
     } else {
         return appendTo;
     }
 }
 UnicodeString&
 NumberFormat::format(int32_t number,
                      UnicodeString& appendTo,
                      FieldPosition& pos,
                      UErrorCode &status) const {
     if(U_SUCCESS(status)) {
         return format(number,appendTo,pos);
     } else {
         return appendTo;
     }
 }
 UnicodeString&
 NumberFormat::format(int64_t number,
                      UnicodeString& appendTo,
                      FieldPosition& pos,
                      UErrorCode &status) const {
     if(U_SUCCESS(status)) {
         return format(number,appendTo,pos);
     } else {
         return appendTo;
     }
 }
 // -------------------------------------
 // Decimal Number format() default implementation
 // Subclasses do not normally override this function, but rather the DigitList
 // formatting functions..
 //   The expected call chain from here is
 //      this function ->
 //      NumberFormat::format(Formattable  ->
 //      DecimalFormat::format(DigitList
 //
 //   Or, for subclasses of Formattable that do not know about DigitList,
 //       this Function ->
 //       NumberFormat::format(Formattable  ->
 //       NumberFormat::format(DigitList  ->
 //       XXXFormat::format(double
 UnicodeString&
 NumberFormat::format(const StringPiece &decimalNum,
                      UnicodeString& toAppendTo,
                      FieldPositionIterator* fpi,
                      UErrorCode& status) const
 {
     Formattable f;
     f.setDecimalNumber(decimalNum, status);
     format(f, toAppendTo, fpi, status);
     return toAppendTo;
 }
 /**
  *
 // Formats the number object and save the format
 // result in the toAppendTo string buffer.
 // utility to save/restore state, used in two overloads
 // of format(const Formattable&...) below.
 *
 * Old purpose of ArgExtractor was to avoid const. Not thread safe!
 *
 * keeping it around as a shim.
 */
 class ArgExtractor {
   const Formattable* num;
   UChar save[4];
   UBool fWasCurrency;
  public:
   ArgExtractor(const NumberFormat& nf, const Formattable& obj, UErrorCode& status);
   ~ArgExtractor();
   const Formattable* number(void) const;
   const UChar *iso(void) const;
   UBool wasCurrency(void) const;
 };
 inline const Formattable*
 ArgExtractor::number(void) const {
   return num;
 }
 inline UBool
 ArgExtractor::wasCurrency(void) const {
   return fWasCurrency;
 }
 inline const UChar *
 ArgExtractor::iso(void) const {
   return save;
 }
 ArgExtractor::ArgExtractor(const NumberFormat& /*nf*/, const Formattable& obj, UErrorCode& /*status*/)
   : num(&obj), fWasCurrency(FALSE) {
     const UObject* o = obj.getObject(); // most commonly o==NULL
     const CurrencyAmount* amt;
     if (o != NULL && (amt = dynamic_cast<const CurrencyAmount*>(o)) != NULL) {
         // getISOCurrency() returns a pointer to internal storage, so we
         // copy it to retain it across the call to setCurrency().
         //const UChar* curr = amt->getISOCurrency();
         u_strcpy(save, amt->getISOCurrency());
         num = &amt->getNumber();
         fWasCurrency=TRUE;
     } else {
       save[0]=0;
     }
 }
 ArgExtractor::~ArgExtractor() {
 }
 UnicodeString& NumberFormat::format(const DigitList &number,
                       UnicodeString& appendTo,
                       FieldPositionIterator* posIter,
                       UErrorCode& status) const {
     // DecimalFormat overrides this function, and handles DigitList based big decimals.
     // Other subclasses (ChoiceFormat, RuleBasedNumberFormat) do not (yet) handle DigitLists,
     // so this default implementation falls back to formatting decimal numbers as doubles.
     if (U_FAILURE(status)) {
         return appendTo;
     }
     double dnum = number.getDouble();
     format(dnum, appendTo, posIter, status);
     return appendTo;
 }
 UnicodeString&
 NumberFormat::format(const DigitList &number,
                      UnicodeString& appendTo,
                      FieldPosition& pos,
                      UErrorCode &status) const {
     // DecimalFormat overrides this function, and handles DigitList based big decimals.
     // Other subclasses (ChoiceFormat, RuleBasedNumberFormat) do not (yet) handle DigitLists,
     // so this default implementation falls back to formatting decimal numbers as doubles.
     if (U_FAILURE(status)) {
         return appendTo;
     }
     double dnum = number.getDouble();
     format(dnum, appendTo, pos, status);
     return appendTo;
 }
 UnicodeString&
 NumberFormat::format(const Formattable& obj,
                         UnicodeString& appendTo,
                         FieldPosition& pos,
                         UErrorCode& status) const
 {
     if (U_FAILURE(status)) return appendTo;
     ArgExtractor arg(*this, obj, status);
     const Formattable *n = arg.number();
     const UChar *iso = arg.iso();
     if(arg.wasCurrency() && u_strcmp(iso, getCurrency())) {
       // trying to format a different currency.
       // Right now, we clone.
       LocalPointer<NumberFormat> cloneFmt((NumberFormat*)this->clone());
       cloneFmt->setCurrency(iso, status);
       // next line should NOT recurse, because n is numeric whereas obj was a wrapper around currency amount.
       return cloneFmt->format(*n, appendTo, pos, status);
     }
     if (n->isNumeric() && n->getDigitList() != NULL) {
         // Decimal Number.  We will have a DigitList available if the value was
         //   set to a decimal number, or if the value originated with a parse.
         //
         // The default implementation for formatting a DigitList converts it
         // to a double, and formats that, allowing formatting classes that don't
         // know about DigitList to continue to operate as they had.
         //
         // DecimalFormat overrides the DigitList formatting functions.
         format(*n->getDigitList(), appendTo, pos, status);
     } else {
         switch (n->getType()) {
         case Formattable::kDouble:
             format(n->getDouble(), appendTo, pos);
             break;
         case Formattable::kLong:
             format(n->getLong(), appendTo, pos);
             break;
         case Formattable::kInt64:
             format(n->getInt64(), appendTo, pos);
             break;
         default:
             status = U_INVALID_FORMAT_ERROR;
             break;
         }
     }
     return appendTo;
 }
 // -------------------------------------x
 // Formats the number object and save the format
 // result in the toAppendTo string buffer.
 UnicodeString&
 NumberFormat::format(const Formattable& obj,
                         UnicodeString& appendTo,
                         FieldPositionIterator* posIter,
                         UErrorCode& status) const
 {
     if (U_FAILURE(status)) return appendTo;
     ArgExtractor arg(*this, obj, status);
     const Formattable *n = arg.number();
     const UChar *iso = arg.iso();
     if(arg.wasCurrency() && u_strcmp(iso, getCurrency())) {
       // trying to format a different currency.
       // Right now, we clone.
       LocalPointer<NumberFormat> cloneFmt((NumberFormat*)this->clone());
       cloneFmt->setCurrency(iso, status);
       // next line should NOT recurse, because n is numeric whereas obj was a wrapper around currency amount.
       return cloneFmt->format(*n, appendTo, posIter, status);
     }
     if (n->isNumeric() && n->getDigitList() != NULL) {
         // Decimal Number
         format(*n->getDigitList(), appendTo, posIter, status);
     } else {
         switch (n->getType()) {
         case Formattable::kDouble:
             format(n->getDouble(), appendTo, posIter, status);
             break;
         case Formattable::kLong:
             format(n->getLong(), appendTo, posIter, status);
             break;
         case Formattable::kInt64:
             format(n->getInt64(), appendTo, posIter, status);
             break;
         default:
             status = U_INVALID_FORMAT_ERROR;
             break;
         }
     }
     return appendTo;
 }
 // -------------------------------------
 UnicodeString&
 NumberFormat::format(int64_t number,
                      UnicodeString& appendTo,
                      FieldPosition& pos) const
 {
     // default so we don't introduce a new abstract method
     return format((int32_t)number, appendTo, pos);
 }
 // -------------------------------------
 // Parses the string and save the result object as well
 // as the final parsed position.
 void
 NumberFormat::parseObject(const UnicodeString& source,
                              Formattable& result,
                              ParsePosition& parse_pos) const
 {
     parse(source, result, parse_pos);
 }
 // -------------------------------------
 // Formats a double number and save the result in a string.
 UnicodeString&
 NumberFormat::format(double number, UnicodeString& appendTo) const
 {
     FieldPosition pos(0);
     return format(number, appendTo, pos);
 }
 // -------------------------------------
 // Formats a long number and save the result in a string.
 UnicodeString&
 NumberFormat::format(int32_t number, UnicodeString& appendTo) const
 {
     FieldPosition pos(0);
     return format(number, appendTo, pos);
 }
 // -------------------------------------
 // Formats a long number and save the result in a string.
 UnicodeString&
 NumberFormat::format(int64_t number, UnicodeString& appendTo) const
 {
     FieldPosition pos(0);
     return format(number, appendTo, pos);
 }
 // -------------------------------------
 // Parses the text and save the result object.  If the returned
 // parse position is 0, that means the parsing failed, the status
 // code needs to be set to failure.  Ignores the returned parse
 // position, otherwise.
 void
 NumberFormat::parse(const UnicodeString& text,
                         Formattable& result,
                         UErrorCode& status) const
 {
     if (U_FAILURE(status)) return;
     ParsePosition parsePosition(0);
     parse(text, result, parsePosition);
     if (parsePosition.getIndex() == 0) {
         status = U_INVALID_FORMAT_ERROR;
     }
 }
 CurrencyAmount* NumberFormat::parseCurrency(const UnicodeString& text,
                                             ParsePosition& pos) const {
     // Default implementation only -- subclasses should override
     Formattable parseResult;
     int32_t start = pos.getIndex();
     parse(text, parseResult, pos);
     if (pos.getIndex() != start) {
         UChar curr[4];
         UErrorCode ec = U_ZERO_ERROR;
         getEffectiveCurrency(curr, ec);
         if (U_SUCCESS(ec)) {
             LocalPointer<CurrencyAmount> currAmt(new CurrencyAmount(parseResult, curr, ec));
             if (U_FAILURE(ec)) {
                 pos.setIndex(start); // indicate failure
             } else {
                 return currAmt.orphan();
             }
         }
     }
     return NULL;
 }
 // -------------------------------------
 // Sets to only parse integers.
 void
 NumberFormat::setParseIntegerOnly(UBool value)
 {
     fParseIntegerOnly = value;
 }
 // -------------------------------------
 // Sets whether lenient parse is enabled.
 void
 NumberFormat::setLenient(UBool enable)
 {
     fLenient = enable;
 }
 // -------------------------------------
 // Create a number style NumberFormat instance with the default locale.
 NumberFormat* U_EXPORT2
 NumberFormat::createInstance(UErrorCode& status)
 {
     return createInstance(Locale::getDefault(), UNUM_DECIMAL, status);
 }
 // -------------------------------------
 // Create a number style NumberFormat instance with the inLocale locale.
 NumberFormat* U_EXPORT2
 NumberFormat::createInstance(const Locale& inLocale, UErrorCode& status)
 {
     return createInstance(inLocale, UNUM_DECIMAL, status);
 }
 // -------------------------------------
 // Create a currency style NumberFormat instance with the default locale.
 NumberFormat* U_EXPORT2
 NumberFormat::createCurrencyInstance(UErrorCode& status)
 {
     return createCurrencyInstance(Locale::getDefault(),  status);
 }
 // -------------------------------------
 // Create a currency style NumberFormat instance with the inLocale locale.
 NumberFormat* U_EXPORT2
 NumberFormat::createCurrencyInstance(const Locale& inLocale, UErrorCode& status)
 {
     return createInstance(inLocale, UNUM_CURRENCY, status);
 }
 // -------------------------------------
 // Create a percent style NumberFormat instance with the default locale.
 NumberFormat* U_EXPORT2
 NumberFormat::createPercentInstance(UErrorCode& status)
 {
     return createInstance(Locale::getDefault(), UNUM_PERCENT, status);
 }
 // -------------------------------------
 // Create a percent style NumberFormat instance with the inLocale locale.
 NumberFormat* U_EXPORT2
 NumberFormat::createPercentInstance(const Locale& inLocale, UErrorCode& status)
 {
     return createInstance(inLocale, UNUM_PERCENT, status);
 }
 // -------------------------------------
 // Create a scientific style NumberFormat instance with the default locale.
 NumberFormat* U_EXPORT2
 NumberFormat::createScientificInstance(UErrorCode& status)
 {
     return createInstance(Locale::getDefault(), UNUM_SCIENTIFIC, status);
 }
 // -------------------------------------
 // Create a scientific style NumberFormat instance with the inLocale locale.
 NumberFormat* U_EXPORT2
 NumberFormat::createScientificInstance(const Locale& inLocale, UErrorCode& status)
 {
     return createInstance(inLocale, UNUM_SCIENTIFIC, status);
 }
 // -------------------------------------
 const Locale* U_EXPORT2
 NumberFormat::getAvailableLocales(int32_t& count)
 {
     return Locale::getAvailableLocales(count);
 }
 // ------------------------------------------
 //
 // Registration
 //
 //-------------------------------------------
 #if !UCONFIG_NO_SERVICE
 // -------------------------------------
 class ICUNumberFormatFactory : public ICUResourceBundleFactory {
 public:
     virtual ~ICUNumberFormatFactory();
 protected:
     virtual UObject* handleCreate(const Locale& loc, int32_t kind, const ICUService* /* service */, UErrorCode& status) const {
         return NumberFormat::makeInstance(loc, (UNumberFormatStyle)kind, status);
     }
 };
 ICUNumberFormatFactory::~ICUNumberFormatFactory() {}
 // -------------------------------------
 class NFFactory : public LocaleKeyFactory {
 private:
     NumberFormatFactory* _delegate;
     Hashtable* _ids;
 public:
     NFFactory(NumberFormatFactory* delegate)
         : LocaleKeyFactory(delegate->visible() ? VISIBLE : INVISIBLE)
         , _delegate(delegate)
         , _ids(NULL)
     {
     }
     virtual ~NFFactory();
     virtual UObject* create(const ICUServiceKey& key, const ICUService* service, UErrorCode& status) const
     {
         if (handlesKey(key, status)) {
             const LocaleKey& lkey = (const LocaleKey&)key;
             Locale loc;
             lkey.canonicalLocale(loc);
             int32_t kind = lkey.kind();
             UObject* result = _delegate->createFormat(loc, (UNumberFormatStyle)kind);
             if (result == NULL) {
                 result = service->getKey((ICUServiceKey&)key /* cast away const */, NULL, this, status);
             }
             return result;
         }
         return NULL;
     }
 protected:
     /**
      * Return the set of ids that this factory supports (visible or
      * otherwise).  This can be called often and might need to be
      * cached if it is expensive to create.
      */
     virtual const Hashtable* getSupportedIDs(UErrorCode& status) const
     {
         if (U_SUCCESS(status)) {
             if (!_ids) {
                 int32_t count = 0;
                 const UnicodeString * const idlist = _delegate->getSupportedIDs(count, status);
                 ((NFFactory*)this)->_ids = new Hashtable(status); /* cast away const */
                 if (_ids) {
                     for (int i = 0; i < count; ++i) {
                         _ids->put(idlist[i], (void*)this, status);
                     }
                 }
             }
             return _ids;
         }
         return NULL;
     }
 };
 NFFactory::~NFFactory()
 {
     delete _delegate;
     delete _ids;
 }
 class ICUNumberFormatService : public ICULocaleService {
 public:
     ICUNumberFormatService()
         : ICULocaleService(UNICODE_STRING_SIMPLE("Number Format"))
     {
         UErrorCode status = U_ZERO_ERROR;
         registerFactory(new ICUNumberFormatFactory(), status);
     }
     virtual ~ICUNumberFormatService();
     virtual UObject* cloneInstance(UObject* instance) const {
         return ((NumberFormat*)instance)->clone();
     }
     virtual UObject* handleDefault(const ICUServiceKey& key, UnicodeString* /* actualID */, UErrorCode& status) const {
         LocaleKey& lkey = (LocaleKey&)key;
         int32_t kind = lkey.kind();
         Locale loc;
         lkey.currentLocale(loc);
         return NumberFormat::makeInstance(loc, (UNumberFormatStyle)kind, status);
     }
     virtual UBool isDefault() const {
         return countFactories() == 1;
     }
 };
 ICUNumberFormatService::~ICUNumberFormatService() {}
 // -------------------------------------
 static void U_CALLCONV initNumberFormatService() {
     U_ASSERT(gService == NULL);
     ucln_i18n_registerCleanup(UCLN_I18N_NUMFMT, numfmt_cleanup);
     gService = new ICUNumberFormatService();
 }
 static ICULocaleService*
 getNumberFormatService(void)
 {
     umtx_initOnce(gServiceInitOnce, &initNumberFormatService);
     return gService;
 }
 static UBool haveService() {
     return !gServiceInitOnce.isReset() && (getNumberFormatService() != NULL);
 }
 // -------------------------------------
 URegistryKey U_EXPORT2
 NumberFormat::registerFactory(NumberFormatFactory* toAdopt, UErrorCode& status)
 {
   ICULocaleService *service = getNumberFormatService();
   if (service) {
 	  NFFactory *tempnnf = new NFFactory(toAdopt);
 	  if (tempnnf != NULL) {
 		  return service->registerFactory(tempnnf, status);
 	  }
   }
   status = U_MEMORY_ALLOCATION_ERROR;
   return NULL;
 }
 // -------------------------------------
 UBool U_EXPORT2
 NumberFormat::unregister(URegistryKey key, UErrorCode& status)
 {
     if (U_FAILURE(status)) {
         return FALSE;
     }
     if (haveService()) {
         return gService->unregister(key, status);
     } else {
         status = U_ILLEGAL_ARGUMENT_ERROR;
         return FALSE;
     }
 }
 // -------------------------------------
 StringEnumeration* U_EXPORT2
 NumberFormat::getAvailableLocales(void)
 {
   ICULocaleService *service = getNumberFormatService();
   if (service) {
       return service->getAvailableLocales();
   }
   return NULL; // no way to return error condition
 }
 #endif /* UCONFIG_NO_SERVICE */
 // -------------------------------------
 NumberFormat* U_EXPORT2
 NumberFormat::createInstance(const Locale& loc, UNumberFormatStyle kind, UErrorCode& status) {
 #if !UCONFIG_NO_SERVICE
     if (haveService()) {
         return (NumberFormat*)gService->get(loc, kind, status);
     }
 #endif
     return makeInstance(loc, kind, status);
 }
 // -------------------------------------
 // Checks if the thousand/10 thousand grouping is used in the
 // NumberFormat instance.
 UBool
 NumberFormat::isGroupingUsed() const
 {
     return fGroupingUsed;
 }
 // -------------------------------------
 // Sets to use the thousand/10 thousand grouping in the
 // NumberFormat instance.
 void
 NumberFormat::setGroupingUsed(UBool newValue)
 {
     fGroupingUsed = newValue;
 }
 // -------------------------------------
 // Gets the maximum number of digits for the integral part for
 // this NumberFormat instance.
 int32_t NumberFormat::getMaximumIntegerDigits() const
 {
     return fMaxIntegerDigits;
 }
 // -------------------------------------
 // Sets the maximum number of digits for the integral part for
 // this NumberFormat instance.
 void
 NumberFormat::setMaximumIntegerDigits(int32_t newValue)
 {
     fMaxIntegerDigits = uprv_max(0, uprv_min(newValue, gDefaultMaxIntegerDigits));
     if(fMinIntegerDigits > fMaxIntegerDigits)
         fMinIntegerDigits = fMaxIntegerDigits;
 }
 // -------------------------------------
 // Gets the minimum number of digits for the integral part for
 // this NumberFormat instance.
 int32_t
 NumberFormat::getMinimumIntegerDigits() const
 {
     return fMinIntegerDigits;
 }
 // -------------------------------------
 // Sets the minimum number of digits for the integral part for
 // this NumberFormat instance.
 void
 NumberFormat::setMinimumIntegerDigits(int32_t newValue)
 {
     fMinIntegerDigits = uprv_max(0, uprv_min(newValue, gDefaultMinIntegerDigits));
     if(fMinIntegerDigits > fMaxIntegerDigits)
         fMaxIntegerDigits = fMinIntegerDigits;
 }
 // -------------------------------------
 // Gets the maximum number of digits for the fractional part for
 // this NumberFormat instance.
 int32_t
 NumberFormat::getMaximumFractionDigits() const
 {
     return fMaxFractionDigits;
 }
 // -------------------------------------
 // Sets the maximum number of digits for the fractional part for
 // this NumberFormat instance.
 void
 NumberFormat::setMaximumFractionDigits(int32_t newValue)
 {
     fMaxFractionDigits = uprv_max(0, uprv_min(newValue, gDefaultMaxIntegerDigits));
     if(fMaxFractionDigits < fMinFractionDigits)
         fMinFractionDigits = fMaxFractionDigits;
 }
 // -------------------------------------
 // Gets the minimum number of digits for the fractional part for
 // this NumberFormat instance.
 int32_t
 NumberFormat::getMinimumFractionDigits() const
 {
     return fMinFractionDigits;
 }
 // -------------------------------------
 // Sets the minimum number of digits for the fractional part for
 // this NumberFormat instance.
 void
 NumberFormat::setMinimumFractionDigits(int32_t newValue)
 {
     fMinFractionDigits = uprv_max(0, uprv_min(newValue, gDefaultMinIntegerDigits));
     if (fMaxFractionDigits < fMinFractionDigits)
         fMaxFractionDigits = fMinFractionDigits;
 }
 // -------------------------------------
 void NumberFormat::setCurrency(const UChar* theCurrency, UErrorCode& ec) {
     if (U_FAILURE(ec)) {
         return;
     }
     if (theCurrency) {
         u_strncpy(fCurrency, theCurrency, 3);
         fCurrency[3] = 0;
     } else {
         fCurrency[0] = 0;
     }
 }
 const UChar* NumberFormat::getCurrency() const {
     return fCurrency;
 }
 void NumberFormat::getEffectiveCurrency(UChar* result, UErrorCode& ec) const {
     const UChar* c = getCurrency();
     if (*c != 0) {
         u_strncpy(result, c, 3);
         result[3] = 0;
     } else {
         const char* loc = getLocaleID(ULOC_VALID_LOCALE, ec);
         if (loc == NULL) {
             loc = uloc_getDefault();
         }
         ucurr_forLocale(loc, result, 4, &ec);
     }
 }
 // -------------------------------------
 // Creates the NumberFormat instance of the specified style (number, currency,
 // or percent) for the desired locale.
 static void U_CALLCONV nscacheInit() {
     U_ASSERT(NumberingSystem_cache == NULL);
     ucln_i18n_registerCleanup(UCLN_I18N_NUMFMT, numfmt_cleanup);
     UErrorCode status = U_ZERO_ERROR;
     NumberingSystem_cache = uhash_open(uhash_hashLong,
                                        uhash_compareLong,
                                        NULL,
                                        &status);
     if (U_FAILURE(status)) {
         // Number Format code will run with no cache if creation fails.
         NumberingSystem_cache = NULL;
         return;
     }
     uhash_setValueDeleter(NumberingSystem_cache, deleteNumberingSystem);
 }
 UBool
 NumberFormat::isStyleSupported(UNumberFormatStyle style) {
     return gLastResortNumberPatterns[style] != NULL;
 }
 NumberFormat*
 NumberFormat::makeInstance(const Locale& desiredLocale,
                            UNumberFormatStyle style,
                            UErrorCode& status) {
   return makeInstance(desiredLocale, style, false, status);
 }
 NumberFormat*
 NumberFormat::makeInstance(const Locale& desiredLocale,
                            UNumberFormatStyle style,
                            UBool mustBeDecimalFormat,
                            UErrorCode& status) {
     if (U_FAILURE(status)) return NULL;
     if (style < 0 || style >= UNUM_FORMAT_STYLE_COUNT) {
         status = U_ILLEGAL_ARGUMENT_ERROR;
         return NULL;
     }
     // Some styles are not supported. This is a result of merging
     // the @draft ICU 4.2 NumberFormat::EStyles into the long-existing UNumberFormatStyle.
     // Ticket #8503 is for reviewing/fixing/merging the two relevant implementations:
     // this one and unum_open().
     // The UNUM_PATTERN_ styles are not supported here
     // because this method does not take a pattern string.
     if (!isStyleSupported(style)) {
         status = U_UNSUPPORTED_ERROR;
         return NULL;
     }
 #if U_PLATFORM_USES_ONLY_WIN32_API
     if (!mustBeDecimalFormat) {
         char buffer[8];
         int32_t count = desiredLocale.getKeywordValue("compat", buffer, sizeof(buffer), status);
         // if the locale has "@compat=host", create a host-specific NumberFormat
         if (U_SUCCESS(status) && count > 0 && uprv_strcmp(buffer, "host") == 0) {
             Win32NumberFormat *f = NULL;
             UBool curr = TRUE;
             switch (style) {
             case UNUM_DECIMAL:
                 curr = FALSE;
                 // fall-through
             case UNUM_CURRENCY:
             case UNUM_CURRENCY_ISO: // do not support plural formatting here
             case UNUM_CURRENCY_PLURAL:
                 f = new Win32NumberFormat(desiredLocale, curr, status);
                 if (U_SUCCESS(status)) {
                     return f;
                 }
                 delete f;
                 break;
             default:
                 break;
             }
         }
     }
 #endif
     // Use numbering system cache hashtable
     umtx_initOnce(gNSCacheInitOnce, &nscacheInit);
     // Get cached numbering system
     LocalPointer<NumberingSystem> ownedNs;
     NumberingSystem *ns = NULL;
     if (NumberingSystem_cache != NULL) {
         // TODO: Bad hash key usage, see ticket #8504.
         int32_t hashKey = desiredLocale.hashCode();
         Mutex lock(&nscacheMutex);
         ns = (NumberingSystem *)uhash_iget(NumberingSystem_cache, hashKey);
         if (ns == NULL) {
             ns = NumberingSystem::createInstance(desiredLocale,status);
             uhash_iput(NumberingSystem_cache, hashKey, (void*)ns, &status);
         }
     } else {
         ownedNs.adoptInstead(NumberingSystem::createInstance(desiredLocale,status));
         ns = ownedNs.getAlias();
     }
     // check results of getting a numbering system
     if (U_FAILURE(status)) {
         return NULL;
     }
     if (mustBeDecimalFormat && ns->isAlgorithmic()) {
         status = U_UNSUPPORTED_ERROR;
         return NULL;
     }
     LocalPointer<DecimalFormatSymbols> symbolsToAdopt;
     UnicodeString pattern;
     LocalUResourceBundlePointer ownedResource(ures_open(NULL, desiredLocale.getName(), &status));
     if (U_FAILURE(status)) {
         // We don't appear to have resource data available -- use the last-resort data
         status = U_USING_FALLBACK_WARNING;
         // When the data is unavailable, and locale isn't passed in, last resort data is used.
         symbolsToAdopt.adoptInstead(new DecimalFormatSymbols(status));
         if (symbolsToAdopt.isNull()) {
             status = U_MEMORY_ALLOCATION_ERROR;
             return NULL;
         }
         // Creates a DecimalFormat instance with the last resort number patterns.
         pattern.setTo(TRUE, gLastResortNumberPatterns[style], -1);
     }
     else {
         // Loads the decimal symbols of the desired locale.
         symbolsToAdopt.adoptInstead(new DecimalFormatSymbols(desiredLocale, status));
         if (symbolsToAdopt.isNull()) {
             status = U_MEMORY_ALLOCATION_ERROR;
             return NULL;
         }
         UResourceBundle *resource = ownedResource.orphan();
         UResourceBundle *numElements = ures_getByKeyWithFallback(resource, gNumberElements, NULL, &status);
         resource = ures_getByKeyWithFallback(numElements, ns->getName(), resource, &status);
         resource = ures_getByKeyWithFallback(resource, gPatterns, resource, &status);
         ownedResource.adoptInstead(resource);
         int32_t patLen = 0;
         const UChar *patResStr = ures_getStringByKeyWithFallback(resource, gFormatKeys[style], &patLen, &status);
         // Didn't find a pattern specific to the numbering system, so fall back to "latn"
         if ( status == U_MISSING_RESOURCE_ERROR && uprv_strcmp(gLatn,ns->getName())) {
             status = U_ZERO_ERROR;
             resource = ures_getByKeyWithFallback(numElements, gLatn, resource, &status);
             resource = ures_getByKeyWithFallback(resource, gPatterns, resource, &status);
             patResStr = ures_getStringByKeyWithFallback(resource, gFormatKeys[style], &patLen, &status);
         }
         ures_close(numElements);
         // Creates the specified decimal format style of the desired locale.
         pattern.setTo(TRUE, patResStr, patLen);
     }
     if (U_FAILURE(status)) {
         return NULL;
     }
     if(style==UNUM_CURRENCY || style == UNUM_CURRENCY_ISO){
         const UChar* currPattern = symbolsToAdopt->getCurrencyPattern();
         if(currPattern!=NULL){
             pattern.setTo(currPattern, u_strlen(currPattern));
         }
     }
     NumberFormat *f;
     if (ns->isAlgorithmic()) {
         UnicodeString nsDesc;
         UnicodeString nsRuleSetGroup;
         UnicodeString nsRuleSetName;
         Locale nsLoc;
         URBNFRuleSetTag desiredRulesType = URBNF_NUMBERING_SYSTEM;
         nsDesc.setTo(ns->getDescription());
         int32_t firstSlash = nsDesc.indexOf(gSlash);
         int32_t lastSlash = nsDesc.lastIndexOf(gSlash);
         if ( lastSlash > firstSlash ) {
             CharString nsLocID;
             nsLocID.appendInvariantChars(nsDesc.tempSubString(0, firstSlash), status);
             nsRuleSetGroup.setTo(nsDesc,firstSlash+1,lastSlash-firstSlash-1);
             nsRuleSetName.setTo(nsDesc,lastSlash+1);
             nsLoc = Locale::createFromName(nsLocID.data());
             UnicodeString SpelloutRules = UNICODE_STRING_SIMPLE("SpelloutRules");
             if ( nsRuleSetGroup.compare(SpelloutRules) == 0 ) {
                 desiredRulesType = URBNF_SPELLOUT;
             }
         } else {
             nsLoc = desiredLocale;
             nsRuleSetName.setTo(nsDesc);
         }
         RuleBasedNumberFormat *r = new RuleBasedNumberFormat(desiredRulesType,nsLoc,status);
         if (r == NULL) {
             status = U_MEMORY_ALLOCATION_ERROR;
             return NULL;
         }
         r->setDefaultRuleSet(nsRuleSetName,status);
         f = r;
     } else {
         // replace single currency sign in the pattern with double currency sign
         // if the style is UNUM_CURRENCY_ISO
         if (style == UNUM_CURRENCY_ISO) {
             pattern.findAndReplace(UnicodeString(TRUE, gSingleCurrencySign, 1),
                                    UnicodeString(TRUE, gDoubleCurrencySign, 2));
         }
         // "new DecimalFormat()" does not adopt the symbols if its memory allocation fails.
         DecimalFormatSymbols *syms = symbolsToAdopt.orphan();
         f = new DecimalFormat(pattern, syms, style, status);
         if (f == NULL) {
             delete syms;
             status = U_MEMORY_ALLOCATION_ERROR;
             return NULL;
         }
     }
     f->setLocaleIDs(ures_getLocaleByType(ownedResource.getAlias(), ULOC_VALID_LOCALE, &status),
                     ures_getLocaleByType(ownedResource.getAlias(), ULOC_ACTUAL_LOCALE, &status));
     if (U_FAILURE(status)) {
         delete f;
         return NULL;
     }
     return f;
 }
 U_NAMESPACE_END
 #endif /* #if !UCONFIG_NO_FORMATTING */
 //eof

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intl/icu/source/i18n/numfmt.cpp@6474c204b198 (annotated)

intl/icu/source/i18n/numfmt.cpp