926 lines
28 KiB
C++
926 lines
28 KiB
C++
/*
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*******************************************************************************
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* Copyright (C) 1997-2004, International Business Machines Corporation and *
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* others. All Rights Reserved. *
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*******************************************************************************
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*
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* File NUMFMT.CPP
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*
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* Modification History:
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*
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* Date Name Description
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* 02/19/97 aliu Converted from java.
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* 03/18/97 clhuang Implemented with C++ APIs.
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* 04/17/97 aliu Enlarged MAX_INTEGER_DIGITS to fully accomodate the
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* largest double, by default.
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* Changed DigitCount to int per code review.
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* 07/20/98 stephen Changed operator== to check for grouping
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* Changed setMaxIntegerDigits per Java implementation.
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* Changed setMinIntegerDigits per Java implementation.
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* Changed setMinFractionDigits per Java implementation.
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* Changed setMaxFractionDigits per Java implementation.
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********************************************************************************
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*/
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#include "unicode/utypes.h"
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#if !UCONFIG_NO_FORMATTING
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#include "unicode/numfmt.h"
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#include "unicode/locid.h"
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#include "unicode/ures.h"
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#include "unicode/dcfmtsym.h"
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#include "unicode/decimfmt.h"
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#include "unicode/ustring.h"
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#include "unicode/ucurr.h"
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#include "unicode/curramt.h"
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#include "uhash.h"
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#include "cmemory.h"
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#include "iculserv.h"
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#include "ucln_in.h"
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#include "cstring.h"
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#include "putilimp.h"
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#include <float.h>
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//#define FMT_DEBUG
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#ifdef FMT_DEBUG
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#include <stdio.h>
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static void debugout(UnicodeString s) {
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char buf[2000];
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s.extract((int32_t) 0, s.length(), buf);
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printf("%s", buf);
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}
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#define debug(x) printf("%s", x);
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#else
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#define debugout(x)
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#define debug(x)
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#endif
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// If no number pattern can be located for a locale, this is the last
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// resort.
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static const UChar gLastResortDecimalPat[] = {
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0x23, 0x30, 0x2E, 0x23, 0x23, 0x23, 0x3B, 0x2D, 0x23, 0x30, 0x2E, 0x23, 0x23, 0x23, 0 /* "#0.###;-#0.###" */
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};
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static const UChar gLastResortCurrencyPat[] = {
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0x24, 0x23, 0x30, 0x2E, 0x30, 0x30, 0x3B, 0x28, 0x24, 0x23, 0x30, 0x2E, 0x30, 0x30, 0x29, 0 /* "$#0.00;($#0.00)" */
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};
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static const UChar gLastResortPercentPat[] = {
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0x23, 0x30, 0x25, 0 /* "#0%" */
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};
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static const UChar gLastResortScientificPat[] = {
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0x23, 0x45, 0x30, 0 /* "#E0" */
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};
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// *****************************************************************************
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// class NumberFormat
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// *****************************************************************************
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U_NAMESPACE_BEGIN
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UOBJECT_DEFINE_ABSTRACT_RTTI_IMPLEMENTATION(NumberFormat)
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// If the maximum base 10 exponent were 4, then the largest number would
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// be 99,999 which has 5 digits.
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const int32_t NumberFormat::fgMaxIntegerDigits = DBL_MAX_10_EXP + 1; // Should be ~40 ? --srl
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const int32_t NumberFormat::fgMinIntegerDigits = 127;
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const int32_t NumberFormat::fgNumberPatternsCount = 3;
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const UChar * const NumberFormat::fgLastResortNumberPatterns[] =
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{
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gLastResortDecimalPat,
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gLastResortCurrencyPat,
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gLastResortPercentPat,
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gLastResortScientificPat
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};
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#if !UCONFIG_NO_SERVICE
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// -------------------------------------
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// SimpleNumberFormatFactory implementation
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NumberFormatFactory::~NumberFormatFactory() {}
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SimpleNumberFormatFactory::SimpleNumberFormatFactory(const Locale& locale, UBool visible)
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: _visible(visible)
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, _id(locale.getName())
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{
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}
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SimpleNumberFormatFactory::~SimpleNumberFormatFactory() {}
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UBool SimpleNumberFormatFactory::visible(void) const {
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return _visible;
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}
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const UnicodeString *
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SimpleNumberFormatFactory::getSupportedIDs(int32_t &count, UErrorCode& status) const
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{
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if (U_SUCCESS(status)) {
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count = 1;
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return &_id;
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}
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count = 0;
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return NULL;
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}
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#endif /* #if !UCONFIG_NO_SERVICE */
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// -------------------------------------
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// default constructor
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NumberFormat::NumberFormat()
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: fGroupingUsed(TRUE),
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fMaxIntegerDigits(fgMaxIntegerDigits),
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fMinIntegerDigits(1),
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fMaxFractionDigits(3), // invariant, >= minFractionDigits
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fMinFractionDigits(0),
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fParseIntegerOnly(FALSE)
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{
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fCurrency[0] = 0;
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}
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// -------------------------------------
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NumberFormat::~NumberFormat()
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{
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}
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// -------------------------------------
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// copy constructor
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NumberFormat::NumberFormat(const NumberFormat &source)
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: Format(source)
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{
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*this = source;
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}
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// -------------------------------------
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// assignment operator
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NumberFormat&
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NumberFormat::operator=(const NumberFormat& rhs)
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{
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if (this != &rhs)
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{
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fGroupingUsed = rhs.fGroupingUsed;
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fMaxIntegerDigits = rhs.fMaxIntegerDigits;
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fMinIntegerDigits = rhs.fMinIntegerDigits;
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fMaxFractionDigits = rhs.fMaxFractionDigits;
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fMinFractionDigits = rhs.fMinFractionDigits;
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fParseIntegerOnly = rhs.fParseIntegerOnly;
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u_strncpy(fCurrency, rhs.fCurrency, 4);
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}
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return *this;
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}
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// -------------------------------------
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UBool
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NumberFormat::operator==(const Format& that) const
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{
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// Format::operator== guarantees this cast is safe
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NumberFormat* other = (NumberFormat*)&that;
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#ifdef FMT_DEBUG
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// This code makes it easy to determine why two format objects that should
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// be equal aren't.
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UBool first = TRUE;
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if (!Format::operator==(that)) {
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if (first) { printf("[ "); first = FALSE; } else { printf(", "); }
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debug("Format::!=");
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}
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if (!(fMaxIntegerDigits == other->fMaxIntegerDigits &&
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fMinIntegerDigits == other->fMinIntegerDigits)) {
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if (first) { printf("[ "); first = FALSE; } else { printf(", "); }
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debug("Integer digits !=");
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}
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if (!(fMaxFractionDigits == other->fMaxFractionDigits &&
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fMinFractionDigits == other->fMinFractionDigits)) {
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if (first) { printf("[ "); first = FALSE; } else { printf(", "); }
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debug("Fraction digits !=");
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}
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if (!(fGroupingUsed == other->fGroupingUsed)) {
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if (first) { printf("[ "); first = FALSE; } else { printf(", "); }
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debug("fGroupingUsed != ");
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}
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if (!(fParseIntegerOnly == other->fParseIntegerOnly)) {
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if (first) { printf("[ "); first = FALSE; } else { printf(", "); }
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debug("fParseIntegerOnly != ");
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}
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if (!(u_strcmp(fCurrency, other->fCurrency) == 0)) {
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if (first) { printf("[ "); first = FALSE; } else { printf(", "); }
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debug("fCurrency !=");
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}
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if (!first) { printf(" ]"); }
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#endif
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return ((this == &that) ||
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((Format::operator==(that) &&
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fMaxIntegerDigits == other->fMaxIntegerDigits &&
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fMinIntegerDigits == other->fMinIntegerDigits &&
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fMaxFractionDigits == other->fMaxFractionDigits &&
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fMinFractionDigits == other->fMinFractionDigits &&
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fGroupingUsed == other->fGroupingUsed &&
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fParseIntegerOnly == other->fParseIntegerOnly &&
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u_strcmp(fCurrency, other->fCurrency) == 0)));
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}
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// -------------------------------------x
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// Formats the number object and save the format
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// result in the toAppendTo string buffer.
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UnicodeString&
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NumberFormat::format(const Formattable& obj,
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UnicodeString& appendTo,
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FieldPosition& pos,
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UErrorCode& status) const
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{
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if (U_FAILURE(status)) return appendTo;
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NumberFormat* nonconst = (NumberFormat*) this;
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const Formattable* n = &obj;
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UChar save[4];
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UBool setCurr = FALSE;
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const UObject* o = obj.getObject(); // most commonly o==NULL
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if (o != NULL &&
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o->getDynamicClassID() == CurrencyAmount::getStaticClassID()) {
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// getISOCurrency() returns a pointer to internal storage, so we
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// copy it to retain it across the call to setCurrency().
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const CurrencyAmount* amt = (const CurrencyAmount*) o;
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const UChar* curr = amt->getISOCurrency();
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u_strcpy(save, getCurrency());
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setCurr = (u_strcmp(curr, save) != 0);
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if (setCurr) {
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nonconst->setCurrency(curr, status);
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}
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n = &amt->getNumber();
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}
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switch (n->getType()) {
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case Formattable::kDouble:
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format(n->getDouble(), appendTo, pos);
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break;
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case Formattable::kLong:
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format(n->getLong(), appendTo, pos);
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break;
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case Formattable::kInt64:
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format(n->getInt64(), appendTo, pos);
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break;
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default:
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status = U_INVALID_FORMAT_ERROR;
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break;
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}
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if (setCurr) {
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UErrorCode ok = U_ZERO_ERROR;
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nonconst->setCurrency(save, ok); // always restore currency
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}
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return appendTo;
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}
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// -------------------------------------
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UnicodeString&
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NumberFormat::format(int64_t number,
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UnicodeString& appendTo,
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FieldPosition& pos) const
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{
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// default so we don't introduce a new abstract method
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return format((int32_t)number, appendTo, pos);
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}
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// -------------------------------------
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// Parses the string and save the result object as well
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// as the final parsed position.
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void
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NumberFormat::parseObject(const UnicodeString& source,
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Formattable& result,
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ParsePosition& parse_pos) const
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{
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parse(source, result, parse_pos);
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}
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// -------------------------------------
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// Formats a double number and save the result in a string.
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UnicodeString&
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NumberFormat::format(double number, UnicodeString& appendTo) const
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{
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FieldPosition pos(0);
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return format(number, appendTo, pos);
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}
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// -------------------------------------
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// Formats a long number and save the result in a string.
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UnicodeString&
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NumberFormat::format(int32_t number, UnicodeString& appendTo) const
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{
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FieldPosition pos(0);
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return format(number, appendTo, pos);
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}
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// -------------------------------------
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// Formats a long number and save the result in a string.
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UnicodeString&
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NumberFormat::format(int64_t number, UnicodeString& appendTo) const
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{
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FieldPosition pos(0);
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return format(number, appendTo, pos);
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}
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// -------------------------------------
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// Parses the text and save the result object. If the returned
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// parse position is 0, that means the parsing failed, the status
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// code needs to be set to failure. Ignores the returned parse
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// position, otherwise.
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void
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NumberFormat::parse(const UnicodeString& text,
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Formattable& result,
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UErrorCode& status) const
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{
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if (U_FAILURE(status)) return;
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ParsePosition parsePosition(0);
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parse(text, result, parsePosition);
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if (parsePosition.getIndex() == 0) {
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status = U_INVALID_FORMAT_ERROR;
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}
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}
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Formattable& NumberFormat::parseCurrency(const UnicodeString& text,
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Formattable& result,
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ParsePosition& pos) const {
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// Default implementation only -- subclasses should override
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int32_t start = pos.getIndex();
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parse(text, result, pos);
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if (pos.getIndex() != start) {
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UChar curr[4];
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UErrorCode ec = U_ZERO_ERROR;
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getEffectiveCurrency(curr, ec);
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if (U_SUCCESS(ec)) {
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Formattable n(result);
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result.adoptObject(new CurrencyAmount(n, curr, ec));
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if (U_FAILURE(ec)) {
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pos.setIndex(start); // indicate failure
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}
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}
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}
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return result;
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}
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// -------------------------------------
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// Sets to only parse integers.
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void
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NumberFormat::setParseIntegerOnly(UBool value)
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{
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fParseIntegerOnly = value;
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}
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// -------------------------------------
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// Create a number style NumberFormat instance with the default locale.
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NumberFormat* U_EXPORT2
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NumberFormat::createInstance(UErrorCode& status)
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{
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return createInstance(Locale::getDefault(), kNumberStyle, status);
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}
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// -------------------------------------
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// Create a number style NumberFormat instance with the inLocale locale.
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NumberFormat* U_EXPORT2
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NumberFormat::createInstance(const Locale& inLocale, UErrorCode& status)
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{
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return createInstance(inLocale, kNumberStyle, status);
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}
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// -------------------------------------
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// Create a currency style NumberFormat instance with the default locale.
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NumberFormat* U_EXPORT2
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NumberFormat::createCurrencyInstance(UErrorCode& status)
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{
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return createCurrencyInstance(Locale::getDefault(), status);
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}
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// -------------------------------------
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// Create a currency style NumberFormat instance with the inLocale locale.
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NumberFormat* U_EXPORT2
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NumberFormat::createCurrencyInstance(const Locale& inLocale, UErrorCode& status)
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{
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return createInstance(inLocale, kCurrencyStyle, status);
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}
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// -------------------------------------
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// Create a percent style NumberFormat instance with the default locale.
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NumberFormat* U_EXPORT2
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NumberFormat::createPercentInstance(UErrorCode& status)
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{
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return createInstance(Locale::getDefault(), kPercentStyle, status);
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}
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// -------------------------------------
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// Create a percent style NumberFormat instance with the inLocale locale.
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NumberFormat* U_EXPORT2
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NumberFormat::createPercentInstance(const Locale& inLocale, UErrorCode& status)
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{
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return createInstance(inLocale, kPercentStyle, status);
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}
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// -------------------------------------
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// Create a scientific style NumberFormat instance with the default locale.
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NumberFormat* U_EXPORT2
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NumberFormat::createScientificInstance(UErrorCode& status)
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{
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return createInstance(Locale::getDefault(), kScientificStyle, status);
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}
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// -------------------------------------
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// Create a scientific style NumberFormat instance with the inLocale locale.
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NumberFormat* U_EXPORT2
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NumberFormat::createScientificInstance(const Locale& inLocale, UErrorCode& status)
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{
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return createInstance(inLocale, kScientificStyle, status);
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}
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// -------------------------------------
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const Locale* U_EXPORT2
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NumberFormat::getAvailableLocales(int32_t& count)
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{
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return Locale::getAvailableLocales(count);
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}
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// ------------------------------------------
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//
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// Registration
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//
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//-------------------------------------------
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#if !UCONFIG_NO_SERVICE
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static ICULocaleService* gService = NULL;
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|
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/**
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* Release all static memory held by numberformat.
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*/
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U_CDECL_BEGIN
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static UBool U_CALLCONV numfmt_cleanup(void) {
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if (gService) {
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delete gService;
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gService = NULL;
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}
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return TRUE;
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}
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U_CDECL_END
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// -------------------------------------
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|
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class ICUNumberFormatFactory : public ICUResourceBundleFactory {
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protected:
|
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virtual UObject* handleCreate(const Locale& loc, int32_t kind, const ICUService* /* service */, UErrorCode& status) const {
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// !!! kind is not an EStyles, need to determine how to handle this
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return NumberFormat::makeInstance(loc, (NumberFormat::EStyles)kind, status);
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}
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};
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|
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// -------------------------------------
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class NFFactory : public LocaleKeyFactory {
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private:
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NumberFormatFactory* _delegate;
|
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Hashtable* _ids;
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public:
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NFFactory(NumberFormatFactory* delegate)
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: LocaleKeyFactory(delegate->visible() ? VISIBLE : INVISIBLE)
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, _delegate(delegate)
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, _ids(NULL)
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{
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}
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|
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virtual ~NFFactory()
|
|
{
|
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delete _delegate;
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delete _ids;
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}
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|
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virtual UObject* create(const ICUServiceKey& key, const ICUService* service, UErrorCode& status) const
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|
{
|
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if (handlesKey(key, status)) {
|
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const LocaleKey& lkey = (const LocaleKey&)key;
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Locale loc;
|
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lkey.canonicalLocale(loc);
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int32_t kind = lkey.kind();
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UObject* result = _delegate->createFormat(loc, (UNumberFormatStyle)(kind+1));
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if (result == NULL) {
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result = service->getKey((ICUServiceKey&)key /* cast away const */, NULL, this, status);
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}
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return result;
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}
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return NULL;
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}
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|
|
protected:
|
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/**
|
|
* Return the set of ids that this factory supports (visible or
|
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* 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) {
|
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for (int i = 0; i < count; ++i) {
|
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_ids->put(idlist[i], (void*)this, status);
|
|
}
|
|
}
|
|
}
|
|
return _ids;
|
|
}
|
|
return NULL;
|
|
}
|
|
};
|
|
|
|
class ICUNumberFormatService : public ICULocaleService {
|
|
public:
|
|
ICUNumberFormatService()
|
|
: ICULocaleService("Number Format")
|
|
{
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
registerFactory(new ICUNumberFormatFactory(), status);
|
|
}
|
|
|
|
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, (NumberFormat::EStyles)kind, status);
|
|
}
|
|
|
|
virtual UBool isDefault() const {
|
|
return countFactories() == 1;
|
|
}
|
|
};
|
|
|
|
// -------------------------------------
|
|
|
|
static ICULocaleService*
|
|
getNumberFormatService(void)
|
|
{
|
|
UBool needInit;
|
|
{
|
|
Mutex mutex;
|
|
needInit = (UBool)(gService == NULL);
|
|
}
|
|
if (needInit) {
|
|
ICULocaleService * newservice = new ICUNumberFormatService();
|
|
if (newservice) {
|
|
Mutex mutex;
|
|
if (gService == NULL) {
|
|
gService = newservice;
|
|
newservice = NULL;
|
|
}
|
|
}
|
|
if (newservice) {
|
|
delete newservice;
|
|
} else {
|
|
// we won the contention, this thread can register cleanup.
|
|
#if !UCONFIG_NO_SERVICE
|
|
ucln_i18n_registerCleanup(UCLN_I18N_NUMFMT, numfmt_cleanup);
|
|
#endif
|
|
}
|
|
}
|
|
return gService;
|
|
}
|
|
|
|
// -------------------------------------
|
|
|
|
URegistryKey U_EXPORT2
|
|
NumberFormat::registerFactory(NumberFormatFactory* toAdopt, UErrorCode& status)
|
|
{
|
|
ICULocaleService *service = getNumberFormatService();
|
|
if (service) {
|
|
return service->registerFactory(new NFFactory(toAdopt), status);
|
|
}
|
|
status = U_MEMORY_ALLOCATION_ERROR;
|
|
return NULL;
|
|
}
|
|
|
|
// -------------------------------------
|
|
|
|
UBool U_EXPORT2
|
|
NumberFormat::unregister(URegistryKey key, UErrorCode& status)
|
|
{
|
|
if (U_SUCCESS(status)) {
|
|
umtx_lock(NULL);
|
|
UBool haveService = gService != NULL;
|
|
umtx_unlock(NULL);
|
|
if (haveService) {
|
|
return gService->unregister(key, status);
|
|
}
|
|
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, EStyles kind, UErrorCode& status)
|
|
{
|
|
#if !UCONFIG_NO_SERVICE
|
|
umtx_lock(NULL);
|
|
UBool haveService = gService != NULL;
|
|
umtx_unlock(NULL);
|
|
if (haveService) {
|
|
return (NumberFormat*)gService->get(loc, kind, status);
|
|
}
|
|
else
|
|
#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, fgMaxIntegerDigits));
|
|
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, fgMinIntegerDigits));
|
|
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, fgMaxIntegerDigits));
|
|
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, fgMinIntegerDigits));
|
|
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.
|
|
|
|
NumberFormat*
|
|
NumberFormat::makeInstance(const Locale& desiredLocale,
|
|
EStyles style,
|
|
UErrorCode& status)
|
|
{
|
|
if (U_FAILURE(status)) return NULL;
|
|
|
|
if (style < 0 || style >= kStyleCount) {
|
|
status = U_ILLEGAL_ARGUMENT_ERROR;
|
|
return NULL;
|
|
}
|
|
|
|
NumberFormat* f = NULL;
|
|
DecimalFormatSymbols* symbolsToAdopt = NULL;
|
|
UnicodeString pattern;
|
|
UResourceBundle *resource = ures_open((char *)0, desiredLocale.getName(), &status);
|
|
UResourceBundle *numberPatterns = ures_getByKey(resource, DecimalFormat::fgNumberPatterns, NULL, &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 = new DecimalFormatSymbols(status);
|
|
|
|
// Creates a DecimalFormat instance with the last resort number patterns.
|
|
pattern.setTo(TRUE, fgLastResortNumberPatterns[style], -1);
|
|
}
|
|
else {
|
|
// If not all the styled patterns exists for the NumberFormat in this locale,
|
|
// sets the status code to failure and returns nil.
|
|
if (ures_getSize(numberPatterns) < fgNumberPatternsCount) {
|
|
status = U_INVALID_FORMAT_ERROR;
|
|
goto cleanup;
|
|
}
|
|
|
|
// Loads the decimal symbols of the desired locale.
|
|
symbolsToAdopt = new DecimalFormatSymbols(desiredLocale, status);
|
|
|
|
int32_t patLen = 0;
|
|
const UChar *patResStr = ures_getStringByIndex(numberPatterns, (int32_t)style, &patLen, &status);
|
|
// Creates the specified decimal format style of the desired locale.
|
|
pattern.setTo(TRUE, patResStr, patLen);
|
|
}
|
|
if (U_FAILURE(status) || symbolsToAdopt == NULL) {
|
|
goto cleanup;
|
|
}
|
|
|
|
// Here we assume that the locale passed in is in the canonical
|
|
// form, e.g: pt_PT_@currency=PTE not pt_PT_PREEURO
|
|
if(style==kCurrencyStyle){
|
|
char currencyCode[8]={0};
|
|
int32_t currencyCodeCap = sizeof(currencyCode);
|
|
const char* locName = desiredLocale.getName();
|
|
currencyCodeCap = uloc_getKeywordValue(locName, "currency", currencyCode, currencyCodeCap, &status);
|
|
if(U_SUCCESS(status) && currencyCodeCap > 0) {
|
|
/* An explicit currency was requested */
|
|
UErrorCode localStatus = U_ZERO_ERROR;
|
|
UResourceBundle *currency = ures_getByKeyWithFallback(resource, "Currencies", NULL, &localStatus);
|
|
currency = ures_getByKeyWithFallback(currency, currencyCode, currency, &localStatus);
|
|
if(U_SUCCESS(localStatus) && ures_getSize(currency)>2) {
|
|
currency = ures_getByIndex(currency, 2, currency, &localStatus);
|
|
int32_t currPatternLen = 0;
|
|
const UChar *currPattern = ures_getStringByIndex(currency, (int32_t)0, &currPatternLen, &localStatus);
|
|
UnicodeString decimalSep = ures_getStringByIndex(currency, (int32_t)1, NULL, &localStatus);
|
|
UnicodeString groupingSep = ures_getStringByIndex(currency, (int32_t)2, NULL, &localStatus);
|
|
if(U_SUCCESS(localStatus)){
|
|
symbolsToAdopt->setSymbol(DecimalFormatSymbols::kGroupingSeparatorSymbol, groupingSep);
|
|
symbolsToAdopt->setSymbol(DecimalFormatSymbols::kMonetarySeparatorSymbol, decimalSep);
|
|
pattern.setTo(TRUE, currPattern, currPatternLen);
|
|
status = localStatus;
|
|
}
|
|
}
|
|
ures_close(currency);
|
|
/* else An explicit currency was requested and is unknown or locale data is malformed. */
|
|
/* ucurr_* API will get the correct value later on. */
|
|
}
|
|
/* else no currency keyword used. */
|
|
}
|
|
f = new DecimalFormat(pattern, symbolsToAdopt, status);
|
|
if (U_FAILURE(status) || f == NULL) {
|
|
goto cleanup;
|
|
}
|
|
|
|
f->setLocaleIDs(ures_getLocaleByType(numberPatterns, ULOC_VALID_LOCALE, &status),
|
|
ures_getLocaleByType(numberPatterns, ULOC_ACTUAL_LOCALE, &status));
|
|
cleanup:
|
|
ures_close(numberPatterns);
|
|
ures_close(resource);
|
|
if (U_FAILURE(status)) {
|
|
/* If f exists, then it will delete the symbols */
|
|
if (f==NULL) {
|
|
delete symbolsToAdopt;
|
|
}
|
|
else {
|
|
delete f;
|
|
}
|
|
return NULL;
|
|
}
|
|
if (f == NULL || symbolsToAdopt == NULL) {
|
|
status = U_MEMORY_ALLOCATION_ERROR;
|
|
f = NULL;
|
|
}
|
|
return f;
|
|
}
|
|
|
|
U_NAMESPACE_END
|
|
|
|
#endif /* #if !UCONFIG_NO_FORMATTING */
|
|
|
|
//eof
|