/*
*******************************************************************************
* Copyright (C) 1997-1999, International Business Machines Corporation and    *
* others. All Rights Reserved.                                                *
*******************************************************************************
*
* File DCFMTSYM.CPP
*
* Modification History:
*
*   Date        Name        Description
*   02/19/97    aliu        Converted from java.
*   03/18/97    clhuang     Implemented with C++ APIs.
*   03/27/97    helena      Updated to pass the simple test after code review.
*   08/26/97    aliu        Added currency/intl currency symbol support.
*    07/20/98    stephen        Slightly modified initialization of monetarySeparator
********************************************************************************
*/
 
#include "unicode/utypes.h"

#if !UCONFIG_NO_FORMATTING

#include "unicode/dcfmtsym.h"
#include "unicode/resbund.h"
#include "unicode/decimfmt.h"

// *****************************************************************************
// class DecimalFormatSymbols
// *****************************************************************************
 
U_NAMESPACE_BEGIN

const char DecimalFormatSymbols::fgClassID=0;

const char DecimalFormatSymbols::fgNumberElements[] = "NumberElements";
const char DecimalFormatSymbols::fgCurrencyElements[] = "CurrencyElements";

// -------------------------------------
// Initializes this with the decimal format symbols in the default locale.
 
DecimalFormatSymbols::DecimalFormatSymbols(UErrorCode& status)
    : UObject()
{
    initialize(Locale::getDefault(), status, TRUE);
}
 
// -------------------------------------
// Initializes this with the decimal format symbols in the desired locale.
 
DecimalFormatSymbols::DecimalFormatSymbols(const Locale& loc, UErrorCode& status)
    : UObject()
{
    initialize(loc, status);
}
 
// -------------------------------------

DecimalFormatSymbols::~DecimalFormatSymbols()
{
}

// -------------------------------------
// copy constructor

DecimalFormatSymbols::DecimalFormatSymbols(const DecimalFormatSymbols &source)
    : UObject(source)
{
    int i;
    for(i = 0; i < (int)kFormatSymbolCount; ++i) {
        // fastCopyFrom is safe, see docs on fSymbols
        fSymbols[(ENumberFormatSymbol)i].fastCopyFrom(source.fSymbols[(ENumberFormatSymbol)i]);
    }
}

// -------------------------------------
// assignment operator

DecimalFormatSymbols&
DecimalFormatSymbols::operator=(const DecimalFormatSymbols& rhs)
{
    if (this != &rhs)
    {
        int i;
        for(i = 0; i < (int)kFormatSymbolCount; ++i) {
            // fastCopyFrom is safe, see docs on fSymbols
            fSymbols[(ENumberFormatSymbol)i].fastCopyFrom(rhs.fSymbols[(ENumberFormatSymbol)i]);
        }
    }
    return *this;
}

// -------------------------------------

UBool
DecimalFormatSymbols::operator==(const DecimalFormatSymbols& that) const
{
    if (this == &that) {
        return TRUE;
    }

    int i;
    for(i = 0; i < (int)kFormatSymbolCount; ++i) {
        if(fSymbols[(ENumberFormatSymbol)i] != that.fSymbols[(ENumberFormatSymbol)i]) {
            return FALSE;
        }
    }
    return TRUE;
}
 
// -------------------------------------
 
void
DecimalFormatSymbols::initialize(const Locale& loc, UErrorCode& status,
                                 UBool useLastResortData)
{
    if (U_FAILURE(status)) return;

    this->locale = loc;

    ResourceBundle resource((char *)0, loc, status);
    if (U_FAILURE(status))
    {
        // Initializes with last resort data if necessary.
        if (useLastResortData)
        {
            status = U_USING_FALLBACK_WARNING;
            initialize();
        }
        return;
    }

    // Gets the number element array.
    int32_t i = 0;
    ResourceBundle numberElementsRes = resource.get(fgNumberElements, status);
    int32_t numberElementsLength = numberElementsRes.getSize();
    UnicodeString* numberElements = new UnicodeString[numberElementsLength];
    /* test for NULL */
    if (numberElements == 0) {
        status = U_MEMORY_ALLOCATION_ERROR;
        return;
    }
    for(i = 0; i<numberElementsLength; i++) {
        numberElements[i].fastCopyFrom(numberElementsRes.getStringEx(i, status));
    }

    // Gets the currency element array.
    ResourceBundle currencyElementsRes = resource.get(fgCurrencyElements, status);
    int32_t currencyElementsLength = currencyElementsRes.getSize();
    UnicodeString* currencyElements = new UnicodeString[currencyElementsLength];
    /* test for NULL */
    if (currencyElements == 0) {
        status = U_MEMORY_ALLOCATION_ERROR;
        delete[] numberElements;
        return;
    }
    for(i = 0; i<currencyElementsLength; i++) {
        currencyElements[i].fastCopyFrom(currencyElementsRes.getStringEx(i, status));
    }

    if (U_FAILURE(status)) return;

    // If the array size is too small, something is wrong with the resource
    // bundle, returns the failure error code.
    if (numberElementsLength < 11 ||
        currencyElementsLength < 3) {
        status = U_INVALID_FORMAT_ERROR;
        return;
    }

    initialize(numberElements, currencyElements);

    delete[] numberElements;
    delete[] currencyElements;
}

// Initializes the DecimalFormatSymbol instance with the data obtained
// from ResourceBundle in the desired locale.

void
DecimalFormatSymbols::initialize(const UnicodeString* numberElements, const UnicodeString* currencyElements)
{
    fSymbols[kDecimalSeparatorSymbol].fastCopyFrom(numberElements[0]);
    fSymbols[kGroupingSeparatorSymbol].fastCopyFrom(numberElements[1]);
    fSymbols[kPatternSeparatorSymbol].fastCopyFrom(numberElements[2]);
    fSymbols[kPercentSymbol].fastCopyFrom(numberElements[3]);
    fSymbols[kZeroDigitSymbol].fastCopyFrom(numberElements[4]);
    fSymbols[kDigitSymbol].fastCopyFrom(numberElements[5]);
    fSymbols[kMinusSignSymbol].fastCopyFrom(numberElements[6]);
    fSymbols[kPlusSignSymbol] = (UChar)0x002b; // '+' Hard coded for now; get from resource later
    fSymbols[kCurrencySymbol].fastCopyFrom(currencyElements[0]);
    fSymbols[kIntlCurrencySymbol].fastCopyFrom(currencyElements[1]);

    // if the resource data specified the empty string as the monetary decimal
    // separator, that means we should just use the regular separator as the
    // monetary separator
    fSymbols[kMonetarySeparatorSymbol].fastCopyFrom(
        currencyElements[2].length() > 0 ?
            currencyElements[2] :
            fSymbols[kDecimalSeparatorSymbol]);

    fSymbols[kExponentialSymbol].fastCopyFrom(numberElements[7]);
    fSymbols[kPerMillSymbol].fastCopyFrom(numberElements[8]);
    fSymbols[kPadEscapeSymbol] = (UChar)0x002a; // '*' Hard coded for now; get from resource later
    fSymbols[kInfinitySymbol].fastCopyFrom(numberElements[9]);
    fSymbols[kNaNSymbol].fastCopyFrom(numberElements[10]);
}

// initialize with default values
void
DecimalFormatSymbols::initialize() {
    /*
     * These strings used to be in static arrays, but the HP/UX aCC compiler
     * cannot initialize a static array with class constructors.
     *  markus 2000may25
     */
    fSymbols[kDecimalSeparatorSymbol] = (UChar)0x2e;    // '.' decimal separator
    fSymbols[kGroupingSeparatorSymbol].remove();        //     group (thousands) separator
    fSymbols[kPatternSeparatorSymbol] = (UChar)0x3b;    // ';' pattern separator
    fSymbols[kPercentSymbol] = (UChar)0x25;             // '%' percent sign
    fSymbols[kZeroDigitSymbol] = (UChar)0x30;           // '0' native 0 digit
    fSymbols[kDigitSymbol] = (UChar)0x23;               // '#' pattern digit
    fSymbols[kMinusSignSymbol] = (UChar)0x2d;           // '-' minus sign
    fSymbols[kPlusSignSymbol] = (UChar)0x002b;          // '+' plus sign
    fSymbols[kCurrencySymbol] = (UChar)0xa4;            // 'OX' currency symbol
    (fSymbols[kIntlCurrencySymbol] = (UChar)0xa4).append((UChar)0xa4);
    fSymbols[kMonetarySeparatorSymbol] = (UChar)0x2e;   // '.' monetary decimal separator
    fSymbols[kExponentialSymbol] = (UChar)0x45;         // 'E' exponential
    fSymbols[kPerMillSymbol] = (UChar)0x2030;           // '%o' per mill
    fSymbols[kPadEscapeSymbol] = (UChar)0x2a;           // '*' pad escape symbol
    fSymbols[kInfinitySymbol] = (UChar)0x221e;          // 'oo' infinite
    fSymbols[kNaNSymbol] = (UChar)0xfffd;               // SUB NaN
}

U_NAMESPACE_END

#endif /* #if !UCONFIG_NO_FORMATTING */

//eof