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// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
**********************************************************************
* Copyright (c) 2002-2016, International Business Machines
* Corporation and others. All Rights Reserved.
**********************************************************************
*/
#include "unicode/utypes.h"
#if !UCONFIG_NO_FORMATTING
#include "unicode/ucurr.h"
#include "unicode/locid.h"
#include "unicode/ures.h"
#include "unicode/ustring.h"
#include "unicode/parsepos.h"
#include "unicode/uniset.h"
#include "unicode/usetiter.h"
#include "unicode/utf16.h"
#include "ustr_imp.h"
#include "charstr.h"
#include "cmemory.h"
#include "cstring.h"
#include "static_unicode_sets.h"
#include "uassert.h"
#include "umutex.h"
#include "ucln_cmn.h"
#include "uenumimp.h"
#include "uhash.h"
#include "hash.h"
#include "uinvchar.h"
#include "uresimp.h"
#include "ulist.h"
#include "uresimp.h"
#include "ureslocs.h"
#include "ulocimp.h"
using namespace icu;
//#define UCURR_DEBUG_EQUIV 1
#ifdef UCURR_DEBUG_EQUIV
#include "stdio.h"
#endif
//#define UCURR_DEBUG 1
#ifdef UCURR_DEBUG
#include "stdio.h"
#endif
typedef struct IsoCodeEntry {
const UChar *isoCode; /* const because it's a reference to a resource bundle string. */
UDate from;
UDate to;
} IsoCodeEntry;
//------------------------------------------------------------
// Constants
// Default currency meta data of last resort. We try to use the
// defaults encoded in the meta data resource bundle. If there is a
// configuration/build error and these are not available, we use these
// hard-coded defaults (which should be identical).
static const int32_t LAST_RESORT_DATA[] = { 2, 0, 2, 0 };
// POW10[i] = 10^i, i=0..MAX_POW10
static const int32_t POW10[] = { 1, 10, 100, 1000, 10000, 100000,
1000000, 10000000, 100000000, 1000000000 };
static const int32_t MAX_POW10 = UPRV_LENGTHOF(POW10) - 1;
#define ISO_CURRENCY_CODE_LENGTH 3
//------------------------------------------------------------
// Resource tags
//
static const char CURRENCY_DATA[] = "supplementalData";
// Tag for meta-data, in root.
static const char CURRENCY_META[] = "CurrencyMeta";
// Tag for map from countries to currencies, in root.
static const char CURRENCY_MAP[] = "CurrencyMap";
// Tag for default meta-data, in CURRENCY_META
static const char DEFAULT_META[] = "DEFAULT";
// Variant for legacy pre-euro mapping in CurrencyMap
static const char VAR_PRE_EURO[] = "PREEURO";
// Variant for legacy euro mapping in CurrencyMap
static const char VAR_EURO[] = "EURO";
// Variant delimiter
static const char VAR_DELIM = '_';
static const char VAR_DELIM_STR[] = "_";
// Variant for legacy euro mapping in CurrencyMap
//static const char VAR_DELIM_EURO[] = "_EURO";
#define VARIANT_IS_EMPTY 0
#define VARIANT_IS_EURO 0x1
#define VARIANT_IS_PREEURO 0x2
// Tag for localized display names (symbols) of currencies
static const char CURRENCIES[] = "Currencies";
static const char CURRENCIES_NARROW[] = "Currencies%narrow";
static const char CURRENCYPLURALS[] = "CurrencyPlurals";
static const UChar EUR_STR[] = {0x0045,0x0055,0x0052,0};
// ISO codes mapping table
static const UHashtable* gIsoCodes = NULL;
static icu::UInitOnce gIsoCodesInitOnce = U_INITONCE_INITIALIZER;
// Currency symbol equivalances
static const icu::Hashtable* gCurrSymbolsEquiv = NULL;
static icu::UInitOnce gCurrSymbolsEquivInitOnce = U_INITONCE_INITIALIZER;
U_NAMESPACE_BEGIN
// EquivIterator iterates over all strings that are equivalent to a given
// string, s. Note that EquivIterator will never yield s itself.
class EquivIterator : public icu::UMemory {
public:
// Constructor. hash stores the equivalence relationships; s is the string
// for which we find equivalent strings.
inline EquivIterator(const icu::Hashtable& hash, const icu::UnicodeString& s)
: _hash(hash) {
_start = _current = &s;
}
inline ~EquivIterator() { }
// next returns the next equivalent string or NULL if there are no more.
// If s has no equivalent strings, next returns NULL on the first call.
const icu::UnicodeString *next();
private:
const icu::Hashtable& _hash;
const icu::UnicodeString* _start;
const icu::UnicodeString* _current;
};
const icu::UnicodeString *
EquivIterator::next() {
const icu::UnicodeString* _next = (const icu::UnicodeString*) _hash.get(*_current);
if (_next == NULL) {
U_ASSERT(_current == _start);
return NULL;
}
if (*_next == *_start) {
return NULL;
}
_current = _next;
return _next;
}
U_NAMESPACE_END
// makeEquivalent makes lhs and rhs equivalent by updating the equivalence
// relations in hash accordingly.
static void makeEquivalent(
const icu::UnicodeString &lhs,
const icu::UnicodeString &rhs,
icu::Hashtable* hash, UErrorCode &status) {
if (U_FAILURE(status)) {
return;
}
if (lhs == rhs) {
// already equivalent
return;
}
icu::EquivIterator leftIter(*hash, lhs);
icu::EquivIterator rightIter(*hash, rhs);
const icu::UnicodeString *firstLeft = leftIter.next();
const icu::UnicodeString *firstRight = rightIter.next();
const icu::UnicodeString *nextLeft = firstLeft;
const icu::UnicodeString *nextRight = firstRight;
while (nextLeft != NULL && nextRight != NULL) {
if (*nextLeft == rhs || *nextRight == lhs) {
// Already equivalent
return;
}
nextLeft = leftIter.next();
nextRight = rightIter.next();
}
// Not equivalent. Must join.
icu::UnicodeString *newFirstLeft;
icu::UnicodeString *newFirstRight;
if (firstRight == NULL && firstLeft == NULL) {
// Neither lhs or rhs belong to an equivalence circle, so we form
// a new equivalnce circle of just lhs and rhs.
newFirstLeft = new icu::UnicodeString(rhs);
newFirstRight = new icu::UnicodeString(lhs);
} else if (firstRight == NULL) {
// lhs belongs to an equivalence circle, but rhs does not, so we link
// rhs into lhs' circle.
newFirstLeft = new icu::UnicodeString(rhs);
newFirstRight = new icu::UnicodeString(*firstLeft);
} else if (firstLeft == NULL) {
// rhs belongs to an equivlance circle, but lhs does not, so we link
// lhs into rhs' circle.
newFirstLeft = new icu::UnicodeString(*firstRight);
newFirstRight = new icu::UnicodeString(lhs);
} else {
// Both lhs and rhs belong to different equivalnce circles. We link
// them together to form one single, larger equivalnce circle.
newFirstLeft = new icu::UnicodeString(*firstRight);
newFirstRight = new icu::UnicodeString(*firstLeft);
}
if (newFirstLeft == NULL || newFirstRight == NULL) {
delete newFirstLeft;
delete newFirstRight;
status = U_MEMORY_ALLOCATION_ERROR;
return;
}
hash->put(lhs, (void *) newFirstLeft, status);
hash->put(rhs, (void *) newFirstRight, status);
}
// countEquivalent counts how many strings are equivalent to s.
// hash stores all the equivalnce relations.
// countEquivalent does not include s itself in the count.
static int32_t countEquivalent(const icu::Hashtable &hash, const icu::UnicodeString &s) {
int32_t result = 0;
icu::EquivIterator iter(hash, s);
while (iter.next() != NULL) {
++result;
}
#ifdef UCURR_DEBUG_EQUIV
{
char tmp[200];
s.extract(0,s.length(),tmp, "UTF-8");
printf("CountEquivalent('%s') = %d\n", tmp, result);
}
#endif
return result;
}
static const icu::Hashtable* getCurrSymbolsEquiv();
//------------------------------------------------------------
// Code
/**
* Cleanup callback func
*/
static UBool U_CALLCONV
isoCodes_cleanup(void)
{
if (gIsoCodes != NULL) {
uhash_close(const_cast<UHashtable *>(gIsoCodes));
gIsoCodes = NULL;
}
gIsoCodesInitOnce.reset();
return TRUE;
}
/**
* Cleanup callback func
*/
static UBool U_CALLCONV
currSymbolsEquiv_cleanup(void)
{
delete const_cast<icu::Hashtable *>(gCurrSymbolsEquiv);
gCurrSymbolsEquiv = NULL;
gCurrSymbolsEquivInitOnce.reset();
return TRUE;
}
/**
* Deleter for OlsonToMetaMappingEntry
*/
static void U_CALLCONV
deleteIsoCodeEntry(void *obj) {
IsoCodeEntry *entry = (IsoCodeEntry*)obj;
uprv_free(entry);
}
/**
* Deleter for gCurrSymbolsEquiv.
*/
static void U_CALLCONV
deleteUnicode(void *obj) {
icu::UnicodeString *entry = (icu::UnicodeString*)obj;
delete entry;
}
/**
* Unfortunately, we have to convert the UChar* currency code to char*
* to use it as a resource key.
*/
static inline char*
myUCharsToChars(char* resultOfLen4, const UChar* currency) {
u_UCharsToChars(currency, resultOfLen4, ISO_CURRENCY_CODE_LENGTH);
resultOfLen4[ISO_CURRENCY_CODE_LENGTH] = 0;
return resultOfLen4;
}
/**
* Internal function to look up currency data. Result is an array of
* four integers. The first is the fraction digits. The second is the
* rounding increment, or 0 if none. The rounding increment is in
* units of 10^(-fraction_digits). The third and fourth are the same
* except that they are those used in cash transations ( cashDigits
* and cashRounding ).
*/
static const int32_t*
_findMetaData(const UChar* currency, UErrorCode& ec) {
if (currency == 0 || *currency == 0) {
if (U_SUCCESS(ec)) {
ec = U_ILLEGAL_ARGUMENT_ERROR;
}
return LAST_RESORT_DATA;
}
// Get CurrencyMeta resource out of root locale file. [This may
// move out of the root locale file later; if it does, update this
// code.]
UResourceBundle* currencyData = ures_openDirect(U_ICUDATA_CURR, CURRENCY_DATA, &ec);
UResourceBundle* currencyMeta = ures_getByKey(currencyData, CURRENCY_META, currencyData, &ec);
if (U_FAILURE(ec)) {
ures_close(currencyMeta);
// Config/build error; return hard-coded defaults
return LAST_RESORT_DATA;
}
// Look up our currency, or if that's not available, then DEFAULT
char buf[ISO_CURRENCY_CODE_LENGTH+1];
UErrorCode ec2 = U_ZERO_ERROR; // local error code: soft failure
UResourceBundle* rb = ures_getByKey(currencyMeta, myUCharsToChars(buf, currency), NULL, &ec2);
if (U_FAILURE(ec2)) {
ures_close(rb);
rb = ures_getByKey(currencyMeta,DEFAULT_META, NULL, &ec);
if (U_FAILURE(ec)) {
ures_close(currencyMeta);
ures_close(rb);
// Config/build error; return hard-coded defaults
return LAST_RESORT_DATA;
}
}
int32_t len;
const int32_t *data = ures_getIntVector(rb, &len, &ec);
if (U_FAILURE(ec) || len != 4) {
// Config/build error; return hard-coded defaults
if (U_SUCCESS(ec)) {
ec = U_INVALID_FORMAT_ERROR;
}
ures_close(currencyMeta);
ures_close(rb);
return LAST_RESORT_DATA;
}
ures_close(currencyMeta);
ures_close(rb);
return data;
}
// -------------------------------------
/**
* @see VARIANT_IS_EURO
* @see VARIANT_IS_PREEURO
*/
static uint32_t
idForLocale(const char* locale, char* countryAndVariant, int capacity, UErrorCode* ec)
{
uint32_t variantType = 0;
// !!! this is internal only, assumes buffer is not null and capacity is sufficient
// Extract the country name and variant name. We only
// recognize two variant names, EURO and PREEURO.
char variant[ULOC_FULLNAME_CAPACITY];
ulocimp_getRegionForSupplementalData(locale, FALSE, countryAndVariant, capacity, ec);
uloc_getVariant(locale, variant, sizeof(variant), ec);
if (variant[0] != 0) {
variantType = (uint32_t)(0 == uprv_strcmp(variant, VAR_EURO))
| ((uint32_t)(0 == uprv_strcmp(variant, VAR_PRE_EURO)) << 1);
if (variantType)
{
uprv_strcat(countryAndVariant, VAR_DELIM_STR);
uprv_strcat(countryAndVariant, variant);
}
}
return variantType;
}
// ------------------------------------------
//
// Registration
//
//-------------------------------------------
// don't use ICUService since we don't need fallback
U_CDECL_BEGIN
static UBool U_CALLCONV currency_cleanup(void);
U_CDECL_END
#if !UCONFIG_NO_SERVICE
struct CReg;
static UMutex gCRegLock = U_MUTEX_INITIALIZER;
static CReg* gCRegHead = 0;
struct CReg : public icu::UMemory {
CReg *next;
UChar iso[ISO_CURRENCY_CODE_LENGTH+1];
char id[ULOC_FULLNAME_CAPACITY];
CReg(const UChar* _iso, const char* _id)
: next(0)
{
int32_t len = (int32_t)uprv_strlen(_id);
if (len > (int32_t)(sizeof(id)-1)) {
len = (sizeof(id)-1);
}
uprv_strncpy(id, _id, len);
id[len] = 0;
u_memcpy(iso, _iso, ISO_CURRENCY_CODE_LENGTH);
iso[ISO_CURRENCY_CODE_LENGTH] = 0;
}
static UCurrRegistryKey reg(const UChar* _iso, const char* _id, UErrorCode* status)
{
if (status && U_SUCCESS(*status) && _iso && _id) {
CReg* n = new CReg(_iso, _id);
if (n) {
umtx_lock(&gCRegLock);
if (!gCRegHead) {
/* register for the first time */
ucln_common_registerCleanup(UCLN_COMMON_CURRENCY, currency_cleanup);
}
n->next = gCRegHead;
gCRegHead = n;
umtx_unlock(&gCRegLock);
return n;
}
*status = U_MEMORY_ALLOCATION_ERROR;
}
return 0;
}
static UBool unreg(UCurrRegistryKey key) {
UBool found = FALSE;
umtx_lock(&gCRegLock);
CReg** p = &gCRegHead;
while (*p) {
if (*p == key) {
*p = ((CReg*)key)->next;
delete (CReg*)key;
found = TRUE;
break;
}
p = &((*p)->next);
}
umtx_unlock(&gCRegLock);
return found;
}
static const UChar* get(const char* id) {
const UChar* result = NULL;
umtx_lock(&gCRegLock);
CReg* p = gCRegHead;
/* register cleanup of the mutex */
ucln_common_registerCleanup(UCLN_COMMON_CURRENCY, currency_cleanup);
while (p) {
if (uprv_strcmp(id, p->id) == 0) {
result = p->iso;
break;
}
p = p->next;
}
umtx_unlock(&gCRegLock);
return result;
}
/* This doesn't need to be thread safe. It's for u_cleanup only. */
static void cleanup(void) {
while (gCRegHead) {
CReg* n = gCRegHead;
gCRegHead = gCRegHead->next;
delete n;
}
}
};
// -------------------------------------
U_CAPI UCurrRegistryKey U_EXPORT2
ucurr_register(const UChar* isoCode, const char* locale, UErrorCode *status)
{
if (status && U_SUCCESS(*status)) {
char id[ULOC_FULLNAME_CAPACITY];
idForLocale(locale, id, sizeof(id), status);
return CReg::reg(isoCode, id, status);
}
return NULL;
}
// -------------------------------------
U_CAPI UBool U_EXPORT2
ucurr_unregister(UCurrRegistryKey key, UErrorCode* status)
{
if (status && U_SUCCESS(*status)) {
return CReg::unreg(key);
}
return FALSE;
}
#endif /* UCONFIG_NO_SERVICE */
// -------------------------------------
/**
* Release all static memory held by currency.
*/
/*The declaration here is needed so currency_cleanup(void)
* can call this function.
*/
static UBool U_CALLCONV
currency_cache_cleanup(void);
U_CDECL_BEGIN
static UBool U_CALLCONV currency_cleanup(void) {
#if !UCONFIG_NO_SERVICE
CReg::cleanup();
#endif
/*
* There might be some cached currency data or isoCodes data.
*/
currency_cache_cleanup();
isoCodes_cleanup();
currSymbolsEquiv_cleanup();
return TRUE;
}
U_CDECL_END
// -------------------------------------
U_CAPI int32_t U_EXPORT2
ucurr_forLocale(const char* locale,
UChar* buff,
int32_t buffCapacity,
UErrorCode* ec) {
if (U_FAILURE(*ec)) { return 0; }
if (buffCapacity < 0 || (buff == nullptr && buffCapacity > 0)) {
*ec = U_ILLEGAL_ARGUMENT_ERROR;
return 0;
}
char currency[4]; // ISO currency codes are alpha3 codes.
UErrorCode localStatus = U_ZERO_ERROR;
int32_t resLen = uloc_getKeywordValue(locale, "currency",
currency, UPRV_LENGTHOF(currency), &localStatus);
if (U_SUCCESS(localStatus) && resLen == 3 && uprv_isInvariantString(currency, resLen)) {
if (resLen < buffCapacity) {
T_CString_toUpperCase(currency);
u_charsToUChars(currency, buff, resLen);
}
return u_terminateUChars(buff, buffCapacity, resLen, ec);
}
// get country or country_variant in `id'
char id[ULOC_FULLNAME_CAPACITY];
uint32_t variantType = idForLocale(locale, id, UPRV_LENGTHOF(id), ec);
if (U_FAILURE(*ec)) {
return 0;
}
#if !UCONFIG_NO_SERVICE
const UChar* result = CReg::get(id);
if (result) {
if(buffCapacity > u_strlen(result)) {
u_strcpy(buff, result);
}
resLen = u_strlen(result);
return u_terminateUChars(buff, buffCapacity, resLen, ec);
}
#endif
// Remove variants, which is only needed for registration.
char *idDelim = uprv_strchr(id, VAR_DELIM);
if (idDelim) {
idDelim[0] = 0;
}
const UChar* s = NULL; // Currency code from data file.
if (id[0] == 0) {
// No point looking in the data for an empty string.
// This is what we would get.
localStatus = U_MISSING_RESOURCE_ERROR;
} else {
// Look up the CurrencyMap element in the root bundle.
localStatus = U_ZERO_ERROR;
UResourceBundle *rb = ures_openDirect(U_ICUDATA_CURR, CURRENCY_DATA, &localStatus);
UResourceBundle *cm = ures_getByKey(rb, CURRENCY_MAP, rb, &localStatus);
UResourceBundle *countryArray = ures_getByKey(rb, id, cm, &localStatus);
UResourceBundle *currencyReq = ures_getByIndex(countryArray, 0, NULL, &localStatus);
s = ures_getStringByKey(currencyReq, "id", &resLen, &localStatus);
// Get the second item when PREEURO is requested, and this is a known Euro country.
// If the requested variant is PREEURO, and this isn't a Euro country,
// assume that the country changed over to the Euro in the future.
// This is probably an old version of ICU that hasn't been updated yet.
// The latest currency is probably correct.
if (U_SUCCESS(localStatus)) {
if ((variantType & VARIANT_IS_PREEURO) && u_strcmp(s, EUR_STR) == 0) {
currencyReq = ures_getByIndex(countryArray, 1, currencyReq, &localStatus);
s = ures_getStringByKey(currencyReq, "id", &resLen, &localStatus);
} else if ((variantType & VARIANT_IS_EURO)) {
s = EUR_STR;
}
}
ures_close(currencyReq);
ures_close(countryArray);
}
if ((U_FAILURE(localStatus)) && strchr(id, '_') != 0) {
// We don't know about it. Check to see if we support the variant.
uloc_getParent(locale, id, UPRV_LENGTHOF(id), ec);
*ec = U_USING_FALLBACK_WARNING;
// TODO: Loop over the shortened id rather than recursing and
// looking again for a currency keyword.
return ucurr_forLocale(id, buff, buffCapacity, ec);
}
if (*ec == U_ZERO_ERROR || localStatus != U_ZERO_ERROR) {
// There is nothing to fallback to. Report the failure/warning if possible.
*ec = localStatus;
}
if (U_SUCCESS(*ec)) {
if(buffCapacity > resLen) {
u_strcpy(buff, s);
}
}
return u_terminateUChars(buff, buffCapacity, resLen, ec);
}
// end registration
/**
* Modify the given locale name by removing the rightmost _-delimited
* element. If there is none, empty the string ("" == root).
* NOTE: The string "root" is not recognized; do not use it.
* @return TRUE if the fallback happened; FALSE if locale is already
* root ("").
*/
static UBool fallback(char *loc) {
if (!*loc) {
return FALSE;
}
UErrorCode status = U_ZERO_ERROR;
if (uprv_strcmp(loc, "en_GB") == 0) {
// HACK: See #13368. We need "en_GB" to fall back to "en_001" instead of "en"
// in order to consume the correct data strings. This hack will be removed
// when proper data sink loading is implemented here.
// NOTE: "001" adds 1 char over "GB". However, both call sites allocate
// arrays with length ULOC_FULLNAME_CAPACITY (plenty of room for en_001).
uprv_strcpy(loc + 3, "001");
} else {
uloc_getParent(loc, loc, (int32_t)uprv_strlen(loc), &status);
}
/*
char *i = uprv_strrchr(loc, '_');
if (i == NULL) {
i = loc;
}
*i = 0;
*/
return TRUE;
}
U_CAPI const UChar* U_EXPORT2
ucurr_getName(const UChar* currency,
const char* locale,
UCurrNameStyle nameStyle,
UBool* isChoiceFormat, // fillin
int32_t* len, // fillin
UErrorCode* ec) {
// Look up the Currencies resource for the given locale. The
// Currencies locale data looks like this:
//|en {
//| Currencies {
//| USD { "US$", "US Dollar" }
//| CHF { "Sw F", "Swiss Franc" }
//| INR { "=0#Rs|1#Re|1<Rs", "=0#Rupees|1#Rupee|1<Rupees" }
//| //...
//| }
//|}
if (U_FAILURE(*ec)) {
return 0;
}
int32_t choice = (int32_t) nameStyle;
if (choice < 0 || choice > 2) {
*ec = U_ILLEGAL_ARGUMENT_ERROR;
return 0;
}
// In the future, resource bundles may implement multi-level
// fallback. That is, if a currency is not found in the en_US
// Currencies data, then the en Currencies data will be searched.
// Currently, if a Currencies datum exists in en_US and en, the
// en_US entry hides that in en.
// We want multi-level fallback for this resource, so we implement
// it manually.
// Use a separate UErrorCode here that does not propagate out of
// this function.
UErrorCode ec2 = U_ZERO_ERROR;
char loc[ULOC_FULLNAME_CAPACITY];
uloc_getName(locale, loc, sizeof(loc), &ec2);
if (U_FAILURE(ec2) || ec2 == U_STRING_NOT_TERMINATED_WARNING) {
*ec = U_ILLEGAL_ARGUMENT_ERROR;
return 0;
}
char buf[ISO_CURRENCY_CODE_LENGTH+1];
myUCharsToChars(buf, currency);
/* Normalize the keyword value to uppercase */
T_CString_toUpperCase(buf);
const UChar* s = NULL;
ec2 = U_ZERO_ERROR;
LocalUResourceBundlePointer rb(ures_open(U_ICUDATA_CURR, loc, &ec2));
if (nameStyle == UCURR_NARROW_SYMBOL_NAME) {
CharString key;
key.append(CURRENCIES_NARROW, ec2);
key.append("/", ec2);
key.append(buf, ec2);
s = ures_getStringByKeyWithFallback(rb.getAlias(), key.data(), len, &ec2);
} else {
ures_getByKey(rb.getAlias(), CURRENCIES, rb.getAlias(), &ec2);
ures_getByKeyWithFallback(rb.getAlias(), buf, rb.getAlias(), &ec2);
s = ures_getStringByIndex(rb.getAlias(), choice, len, &ec2);
}
// If we've succeeded we're done. Otherwise, try to fallback.
// If that fails (because we are already at root) then exit.
if (U_SUCCESS(ec2)) {
if (ec2 == U_USING_DEFAULT_WARNING
|| (ec2 == U_USING_FALLBACK_WARNING && *ec != U_USING_DEFAULT_WARNING)) {
*ec = ec2;
}
}
// We no longer support choice format data in names. Data should not contain
// choice patterns.
*isChoiceFormat = FALSE;
if (U_SUCCESS(ec2)) {
U_ASSERT(s != NULL);
return s;
}
// If we fail to find a match, use the ISO 4217 code
*len = u_strlen(currency); // Should == ISO_CURRENCY_CODE_LENGTH, but maybe not...?
*ec = U_USING_DEFAULT_WARNING;
return currency;
}
U_CAPI const UChar* U_EXPORT2
ucurr_getPluralName(const UChar* currency,
const char* locale,
UBool* isChoiceFormat,
const char* pluralCount,
int32_t* len, // fillin
UErrorCode* ec) {
// Look up the Currencies resource for the given locale. The
// Currencies locale data looks like this:
//|en {
//| CurrencyPlurals {
//| USD{
//| one{"US dollar"}
//| other{"US dollars"}
//| }
//| }
//|}
if (U_FAILURE(*ec)) {
return 0;
}
// Use a separate UErrorCode here that does not propagate out of
// this function.
UErrorCode ec2 = U_ZERO_ERROR;
char loc[ULOC_FULLNAME_CAPACITY];
uloc_getName(locale, loc, sizeof(loc), &ec2);
if (U_FAILURE(ec2) || ec2 == U_STRING_NOT_TERMINATED_WARNING) {
*ec = U_ILLEGAL_ARGUMENT_ERROR;
return 0;
}
char buf[ISO_CURRENCY_CODE_LENGTH+1];
myUCharsToChars(buf, currency);
const UChar* s = NULL;
ec2 = U_ZERO_ERROR;
UResourceBundle* rb = ures_open(U_ICUDATA_CURR, loc, &ec2);
rb = ures_getByKey(rb, CURRENCYPLURALS, rb, &ec2);
// Fetch resource with multi-level resource inheritance fallback
rb = ures_getByKeyWithFallback(rb, buf, rb, &ec2);
s = ures_getStringByKeyWithFallback(rb, pluralCount, len, &ec2);
if (U_FAILURE(ec2)) {
// fall back to "other"
ec2 = U_ZERO_ERROR;
s = ures_getStringByKeyWithFallback(rb, "other", len, &ec2);
if (U_FAILURE(ec2)) {
ures_close(rb);
// fall back to long name in Currencies
return ucurr_getName(currency, locale, UCURR_LONG_NAME,
isChoiceFormat, len, ec);
}
}
ures_close(rb);
// If we've succeeded we're done. Otherwise, try to fallback.
// If that fails (because we are already at root) then exit.
if (U_SUCCESS(ec2)) {
if (ec2 == U_USING_DEFAULT_WARNING
|| (ec2 == U_USING_FALLBACK_WARNING && *ec != U_USING_DEFAULT_WARNING)) {
*ec = ec2;
}
U_ASSERT(s != NULL);
return s;
}
// If we fail to find a match, use the ISO 4217 code
*len = u_strlen(currency); // Should == ISO_CURRENCY_CODE_LENGTH, but maybe not...?
*ec = U_USING_DEFAULT_WARNING;
return currency;
}
//========================================================================
// Following are structure and function for parsing currency names
#define NEED_TO_BE_DELETED 0x1
// TODO: a better way to define this?
#define MAX_CURRENCY_NAME_LEN 100
typedef struct {
const char* IsoCode; // key
UChar* currencyName; // value
int32_t currencyNameLen; // value length
int32_t flag; // flags
} CurrencyNameStruct;
#ifndef MIN
#define MIN(a,b) (((a)<(b)) ? (a) : (b))
#endif
#ifndef MAX
#define MAX(a,b) (((a)<(b)) ? (b) : (a))
#endif
// Comparason function used in quick sort.
static int U_CALLCONV currencyNameComparator(const void* a, const void* b) {
const CurrencyNameStruct* currName_1 = (const CurrencyNameStruct*)a;
const CurrencyNameStruct* currName_2 = (const CurrencyNameStruct*)b;
for (int32_t i = 0;
i < MIN(currName_1->currencyNameLen, currName_2->currencyNameLen);
++i) {
if (currName_1->currencyName[i] < currName_2->currencyName[i]) {
return -1;
}
if (currName_1->currencyName[i] > currName_2->currencyName[i]) {
return 1;
}
}
if (currName_1->currencyNameLen < currName_2->currencyNameLen) {
return -1;
} else if (currName_1->currencyNameLen > currName_2->currencyNameLen) {
return 1;
}
return 0;
}
// Give a locale, return the maximum number of currency names associated with
// this locale.
// It gets currency names from resource bundles using fallback.
// It is the maximum number because in the fallback chain, some of the
// currency names are duplicated.
// For example, given locale as "en_US", the currency names get from resource
// bundle in "en_US" and "en" are duplicated. The fallback mechanism will count
// all currency names in "en_US" and "en".
static void
getCurrencyNameCount(const char* loc, int32_t* total_currency_name_count, int32_t* total_currency_symbol_count) {
U_NAMESPACE_USE
*total_currency_name_count = 0;
*total_currency_symbol_count = 0;
const UChar* s = NULL;
char locale[ULOC_FULLNAME_CAPACITY];
uprv_strcpy(locale, loc);
const icu::Hashtable *currencySymbolsEquiv = getCurrSymbolsEquiv();
for (;;) {
UErrorCode ec2 = U_ZERO_ERROR;
// TODO: ures_openDirect?
UResourceBundle* rb = ures_open(U_ICUDATA_CURR, locale, &ec2);
UResourceBundle* curr = ures_getByKey(rb, CURRENCIES, NULL, &ec2);
int32_t n = ures_getSize(curr);
for (int32_t i=0; i<n; ++i) {
UResourceBundle* names = ures_getByIndex(curr, i, NULL, &ec2);
int32_t len;
s = ures_getStringByIndex(names, UCURR_SYMBOL_NAME, &len, &ec2);
++(*total_currency_symbol_count); // currency symbol
if (currencySymbolsEquiv != NULL) {
*total_currency_symbol_count += countEquivalent(*currencySymbolsEquiv, UnicodeString(TRUE, s, len));
}
++(*total_currency_symbol_count); // iso code
++(*total_currency_name_count); // long name
ures_close(names);
}
// currency plurals
UErrorCode ec3 = U_ZERO_ERROR;
UResourceBundle* curr_p = ures_getByKey(rb, CURRENCYPLURALS, NULL, &ec3);
n = ures_getSize(curr_p);
for (int32_t i=0; i<n; ++i) {
UResourceBundle* names = ures_getByIndex(curr_p, i, NULL, &ec3);
*total_currency_name_count += ures_getSize(names);
ures_close(names);
}
ures_close(curr_p);
ures_close(curr);
ures_close(rb);
if (!fallback(locale)) {
break;
}
}
}
static UChar*
toUpperCase(const UChar* source, int32_t len, const char* locale) {
UChar* dest = NULL;
UErrorCode ec = U_ZERO_ERROR;
int32_t destLen = u_strToUpper(dest, 0, source, len, locale, &ec);
ec = U_ZERO_ERROR;
dest = (UChar*)uprv_malloc(sizeof(UChar) * MAX(destLen, len));
u_strToUpper(dest, destLen, source, len, locale, &ec);
if (U_FAILURE(ec)) {
u_memcpy(dest, source, len);
}
return dest;
}
// Collect all available currency names associated with the given locale
// (enable fallback chain).
// Read currenc names defined in resource bundle "Currencies" and
// "CurrencyPlural", enable fallback chain.
// return the malloc-ed currency name arrays and the total number of currency
// names in the array.
static void
collectCurrencyNames(const char* locale,
CurrencyNameStruct** currencyNames,
int32_t* total_currency_name_count,
CurrencyNameStruct** currencySymbols,
int32_t* total_currency_symbol_count,
UErrorCode& ec) {
U_NAMESPACE_USE
const icu::Hashtable *currencySymbolsEquiv = getCurrSymbolsEquiv();
// Look up the Currencies resource for the given locale.
UErrorCode ec2 = U_ZERO_ERROR;
char loc[ULOC_FULLNAME_CAPACITY];
uloc_getName(locale, loc, sizeof(loc), &ec2);
if (U_FAILURE(ec2) || ec2 == U_STRING_NOT_TERMINATED_WARNING) {
ec = U_ILLEGAL_ARGUMENT_ERROR;
}
// Get maximum currency name count first.
getCurrencyNameCount(loc, total_currency_name_count, total_currency_symbol_count);
*currencyNames = (CurrencyNameStruct*)uprv_malloc
(sizeof(CurrencyNameStruct) * (*total_currency_name_count));
*currencySymbols = (CurrencyNameStruct*)uprv_malloc
(sizeof(CurrencyNameStruct) * (*total_currency_symbol_count));
if(currencyNames == NULL || currencySymbols == NULL) {
ec = U_MEMORY_ALLOCATION_ERROR;
}
if (U_FAILURE(ec)) return;
const UChar* s = NULL; // currency name
char* iso = NULL; // currency ISO code
*total_currency_name_count = 0;
*total_currency_symbol_count = 0;
UErrorCode ec3 = U_ZERO_ERROR;
UErrorCode ec4 = U_ZERO_ERROR;
// Using hash to remove duplicates caused by locale fallback
UHashtable* currencyIsoCodes = uhash_open(uhash_hashChars, uhash_compareChars, NULL, &ec3);
UHashtable* currencyPluralIsoCodes = uhash_open(uhash_hashChars, uhash_compareChars, NULL, &ec4);
for (int32_t localeLevel = 0; ; ++localeLevel) {
ec2 = U_ZERO_ERROR;
// TODO: ures_openDirect
UResourceBundle* rb = ures_open(U_ICUDATA_CURR, loc, &ec2);
UResourceBundle* curr = ures_getByKey(rb, CURRENCIES, NULL, &ec2);
int32_t n = ures_getSize(curr);
for (int32_t i=0; i<n; ++i) {
UResourceBundle* names = ures_getByIndex(curr, i, NULL, &ec2);
int32_t len;
s = ures_getStringByIndex(names, UCURR_SYMBOL_NAME, &len, &ec2);
// TODO: uhash_put wont change key/value?
iso = (char*)ures_getKey(names);
if (localeLevel == 0) {
uhash_put(currencyIsoCodes, iso, iso, &ec3);
} else {
if (uhash_get(currencyIsoCodes, iso) != NULL) {
ures_close(names);
continue;
} else {
uhash_put(currencyIsoCodes, iso, iso, &ec3);
}
}
// Add currency symbol.
(*currencySymbols)[*total_currency_symbol_count].IsoCode = iso;
(*currencySymbols)[*total_currency_symbol_count].currencyName = (UChar*)s;
(*currencySymbols)[*total_currency_symbol_count].flag = 0;
(*currencySymbols)[(*total_currency_symbol_count)++].currencyNameLen = len;
// Add equivalent symbols
if (currencySymbolsEquiv != NULL) {
UnicodeString str(TRUE, s, len);
icu::EquivIterator iter(*currencySymbolsEquiv, str);
const UnicodeString *symbol;
while ((symbol = iter.next()) != NULL) {
(*currencySymbols)[*total_currency_symbol_count].IsoCode = iso;
(*currencySymbols)[*total_currency_symbol_count].currencyName =
const_cast<UChar*>(symbol->getBuffer());
(*currencySymbols)[*total_currency_symbol_count].flag = 0;
(*currencySymbols)[(*total_currency_symbol_count)++].currencyNameLen = symbol->length();
}
}
// Add currency long name.
s = ures_getStringByIndex(names, UCURR_LONG_NAME, &len, &ec2);
(*currencyNames)[*total_currency_name_count].IsoCode = iso;
UChar* upperName = toUpperCase(s, len, locale);
(*currencyNames)[*total_currency_name_count].currencyName = upperName;
(*currencyNames)[*total_currency_name_count].flag = NEED_TO_BE_DELETED;
(*currencyNames)[(*total_currency_name_count)++].currencyNameLen = len;
// put (iso, 3, and iso) in to array
// Add currency ISO code.
(*currencySymbols)[*total_currency_symbol_count].IsoCode = iso;
(*currencySymbols)[*total_currency_symbol_count].currencyName = (UChar*)uprv_malloc(sizeof(UChar)*3);
// Must convert iso[] into Unicode
u_charsToUChars(iso, (*currencySymbols)[*total_currency_symbol_count].currencyName, 3);
(*currencySymbols)[*total_currency_symbol_count].flag = NEED_TO_BE_DELETED;
(*currencySymbols)[(*total_currency_symbol_count)++].currencyNameLen = 3;
ures_close(names);
}
// currency plurals
UErrorCode ec5 = U_ZERO_ERROR;
UResourceBundle* curr_p = ures_getByKey(rb, CURRENCYPLURALS, NULL, &ec5);
n = ures_getSize(curr_p);
for (int32_t i=0; i<n; ++i) {
UResourceBundle* names = ures_getByIndex(curr_p, i, NULL, &ec5);
iso = (char*)ures_getKey(names);
// Using hash to remove duplicated ISO codes in fallback chain.
if (localeLevel == 0) {
uhash_put(currencyPluralIsoCodes, iso, iso, &ec4);
} else {
if (uhash_get(currencyPluralIsoCodes, iso) != NULL) {
ures_close(names);
continue;
} else {
uhash_put(currencyPluralIsoCodes, iso, iso, &ec4);
}
}
int32_t num = ures_getSize(names);
int32_t len;
for (int32_t j = 0; j < num; ++j) {
// TODO: remove duplicates between singular name and
// currency long name?
s = ures_getStringByIndex(names, j, &len, &ec5);
(*currencyNames)[*total_currency_name_count].IsoCode = iso;
UChar* upperName = toUpperCase(s, len, locale);
(*currencyNames)[*total_currency_name_count].currencyName = upperName;
(*currencyNames)[*total_currency_name_count].flag = NEED_TO_BE_DELETED;
(*currencyNames)[(*total_currency_name_count)++].currencyNameLen = len;
}
ures_close(names);
}
ures_close(curr_p);
ures_close(curr);
ures_close(rb);
if (!fallback(loc)) {
break;
}
}
uhash_close(currencyIsoCodes);
uhash_close(currencyPluralIsoCodes);
// quick sort the struct
qsort(*currencyNames, *total_currency_name_count,
sizeof(CurrencyNameStruct), currencyNameComparator);
qsort(*currencySymbols, *total_currency_symbol_count,
sizeof(CurrencyNameStruct), currencyNameComparator);
#ifdef UCURR_DEBUG
printf("currency name count: %d\n", *total_currency_name_count);
for (int32_t index = 0; index < *total_currency_name_count; ++index) {
printf("index: %d\n", index);
printf("iso: %s\n", (*currencyNames)[index].IsoCode);
char curNameBuf[1024];
memset(curNameBuf, 0, 1024);
u_austrncpy(curNameBuf, (*currencyNames)[index].currencyName, (*currencyNames)[index].currencyNameLen);
printf("currencyName: %s\n", curNameBuf);
printf("len: %d\n", (*currencyNames)[index].currencyNameLen);
}
printf("currency symbol count: %d\n", *total_currency_symbol_count);
for (int32_t index = 0; index < *total_currency_symbol_count; ++index) {
printf("index: %d\n", index);
printf("iso: %s\n", (*currencySymbols)[index].IsoCode);
char curNameBuf[1024];
memset(curNameBuf, 0, 1024);
u_austrncpy(curNameBuf, (*currencySymbols)[index].currencyName, (*currencySymbols)[index].currencyNameLen);
printf("currencySymbol: %s\n", curNameBuf);
printf("len: %d\n", (*currencySymbols)[index].currencyNameLen);
}
#endif
// fail on hashtable errors
if (U_FAILURE(ec3)) {
ec = ec3;
return;
}
if (U_FAILURE(ec4)) {
ec = ec4;
return;
}
}
// @param currencyNames: currency names array
// @param indexInCurrencyNames: the index of the character in currency names
// array against which the comparison is done
// @param key: input text char to compare against
// @param begin(IN/OUT): the begin index of matching range in currency names array
// @param end(IN/OUT): the end index of matching range in currency names array.
static int32_t
binarySearch(const CurrencyNameStruct* currencyNames,
int32_t indexInCurrencyNames,
const UChar key,
int32_t* begin, int32_t* end) {
#ifdef UCURR_DEBUG
printf("key = %x\n", key);
#endif
int32_t first = *begin;
int32_t last = *end;
while (first <= last) {
int32_t mid = (first + last) / 2; // compute mid point.
if (indexInCurrencyNames >= currencyNames[mid].currencyNameLen) {
first = mid + 1;
} else {
if (key > currencyNames[mid].currencyName[indexInCurrencyNames]) {
first = mid + 1;
}
else if (key < currencyNames[mid].currencyName[indexInCurrencyNames]) {
last = mid - 1;
}
else {
// Find a match, and looking for ranges
// Now do two more binary searches. First, on the left side for
// the greatest L such that CurrencyNameStruct[L] < key.
int32_t L = *begin;
int32_t R = mid;
#ifdef UCURR_DEBUG
printf("mid = %d\n", mid);
#endif
while (L < R) {
int32_t M = (L + R) / 2;
#ifdef UCURR_DEBUG
printf("L = %d, R = %d, M = %d\n", L, R, M);
#endif
if (indexInCurrencyNames >= currencyNames[M].currencyNameLen) {
L = M + 1;
} else {
if (currencyNames[M].currencyName[indexInCurrencyNames] < key) {
L = M + 1;
} else {
#ifdef UCURR_DEBUG
U_ASSERT(currencyNames[M].currencyName[indexInCurrencyNames] == key);
#endif
R = M;
}
}
}
#ifdef UCURR_DEBUG
U_ASSERT(L == R);
#endif
*begin = L;
#ifdef UCURR_DEBUG
printf("begin = %d\n", *begin);
U_ASSERT(currencyNames[*begin].currencyName[indexInCurrencyNames] == key);
#endif
// Now for the second search, finding the least R such that
// key < CurrencyNameStruct[R].
L = mid;
R = *end;
while (L < R) {
int32_t M = (L + R) / 2;
#ifdef UCURR_DEBUG
printf("L = %d, R = %d, M = %d\n", L, R, M);
#endif
if (currencyNames[M].currencyNameLen < indexInCurrencyNames) {
L = M + 1;
} else {
if (currencyNames[M].currencyName[indexInCurrencyNames] > key) {
R = M;
} else {
#ifdef UCURR_DEBUG
U_ASSERT(currencyNames[M].currencyName[indexInCurrencyNames] == key);
#endif
L = M + 1;
}
}
}
#ifdef UCURR_DEBUG
U_ASSERT(L == R);
#endif
if (currencyNames[R].currencyName[indexInCurrencyNames] > key) {
*end = R - 1;
} else {
*end = R;
}
#ifdef UCURR_DEBUG
printf("end = %d\n", *end);
#endif
// now, found the range. check whether there is exact match
if (currencyNames[*begin].currencyNameLen == indexInCurrencyNames + 1) {
return *begin; // find range and exact match.
}
return -1; // find range, but no exact match.
}
}
}
*begin = -1;
*end = -1;
return -1; // failed to find range.
}
// Linear search "text" in "currencyNames".
// @param begin, end: the begin and end index in currencyNames, within which
// range should the search be performed.
// @param textLen: the length of the text to be compared
// @param maxMatchLen(IN/OUT): passing in the computed max matching length
// pass out the new max matching length
// @param maxMatchIndex: the index in currencyName which has the longest
// match with input text.
static void
linearSearch(const CurrencyNameStruct* currencyNames,
int32_t begin, int32_t end,
const UChar* text, int32_t textLen,
int32_t *partialMatchLen,
int32_t *maxMatchLen, int32_t* maxMatchIndex) {
int32_t initialPartialMatchLen = *partialMatchLen;
for (int32_t index = begin; index <= end; ++index) {
int32_t len = currencyNames[index].currencyNameLen;
if (len > *maxMatchLen && len <= textLen &&
uprv_memcmp(currencyNames[index].currencyName, text, len * sizeof(UChar)) == 0) {
*partialMatchLen = MAX(*partialMatchLen, len);
*maxMatchIndex = index;
*maxMatchLen = len;
#ifdef UCURR_DEBUG
printf("maxMatchIndex = %d, maxMatchLen = %d\n",
*maxMatchIndex, *maxMatchLen);
#endif
} else {
// Check for partial matches.
for (int32_t i=initialPartialMatchLen; i<MIN(len, textLen); i++) {
if (currencyNames[index].currencyName[i] != text[i]) {
break;
}
*partialMatchLen = MAX(*partialMatchLen, i + 1);
}
}
}
}
#define LINEAR_SEARCH_THRESHOLD 10
// Find longest match between "text" and currency names in "currencyNames".
// @param total_currency_count: total number of currency names in CurrencyNames.
// @param textLen: the length of the text to be compared
// @param maxMatchLen: passing in the computed max matching length
// pass out the new max matching length
// @param maxMatchIndex: the index in currencyName which has the longest
// match with input text.
static void
searchCurrencyName(const CurrencyNameStruct* currencyNames,
int32_t total_currency_count,
const UChar* text, int32_t textLen,
int32_t *partialMatchLen,
int32_t* maxMatchLen, int32_t* maxMatchIndex) {
*maxMatchIndex = -1;
*maxMatchLen = 0;
int32_t matchIndex = -1;
int32_t binarySearchBegin = 0;
int32_t binarySearchEnd = total_currency_count - 1;
// It is a variant of binary search.
// For example, given the currency names in currencyNames array are:
// A AB ABC AD AZ B BB BBEX BBEXYZ BS C D E....
// and the input text is BBEXST
// The first round binary search search "B" in the text against
// the first char in currency names, and find the first char matching range
// to be "B BB BBEX BBEXYZ BS" (and the maximum matching "B").
// The 2nd round binary search search the second "B" in the text against
// the 2nd char in currency names, and narrow the matching range to
// "BB BBEX BBEXYZ" (and the maximum matching "BB").
// The 3rd round returnes the range as "BBEX BBEXYZ" (without changing
// maximum matching).
// The 4th round returns the same range (the maximum matching is "BBEX").
// The 5th round returns no matching range.
for (int32_t index = 0; index < textLen; ++index) {
// matchIndex saves the one with exact match till the current point.
// [binarySearchBegin, binarySearchEnd] saves the matching range.
matchIndex = binarySearch(currencyNames, index,
text[index],
&binarySearchBegin, &binarySearchEnd);
if (binarySearchBegin == -1) { // did not find the range
break;
}
*partialMatchLen = MAX(*partialMatchLen, index + 1);
if (matchIndex != -1) {
// find an exact match for text from text[0] to text[index]
// in currencyNames array.
*maxMatchLen = index + 1;
*maxMatchIndex = matchIndex;
}
if (binarySearchEnd - binarySearchBegin < LINEAR_SEARCH_THRESHOLD) {
// linear search if within threshold.
linearSearch(currencyNames, binarySearchBegin, binarySearchEnd,
text, textLen,
partialMatchLen,
maxMatchLen, maxMatchIndex);
break;
}
}
return;
}
//========================= currency name cache =====================
typedef struct {
char locale[ULOC_FULLNAME_CAPACITY]; //key
// currency names, case insensitive
CurrencyNameStruct* currencyNames; // value
int32_t totalCurrencyNameCount; // currency name count
// currency symbols and ISO code, case sensitive
CurrencyNameStruct* currencySymbols; // value
int32_t totalCurrencySymbolCount; // count
// reference count.
// reference count is set to 1 when an entry is put to cache.
// it increases by 1 before accessing, and decreased by 1 after accessing.
// The entry is deleted when ref count is zero, which means
// the entry is replaced out of cache and no process is accessing it.
int32_t refCount;
} CurrencyNameCacheEntry;
#define CURRENCY_NAME_CACHE_NUM 10
// Reserve 10 cache entries.
static CurrencyNameCacheEntry* currCache[CURRENCY_NAME_CACHE_NUM] = {NULL};
// Using an index to indicate which entry to be replaced when cache is full.
// It is a simple round-robin replacement strategy.
static int8_t currentCacheEntryIndex = 0;
static UMutex gCurrencyCacheMutex = U_MUTEX_INITIALIZER;
// Cache deletion
static void
deleteCurrencyNames(CurrencyNameStruct* currencyNames, int32_t count) {
for (int32_t index = 0; index < count; ++index) {
if ( (currencyNames[index].flag & NEED_TO_BE_DELETED) ) {
uprv_free(currencyNames[index].currencyName);
}
}
uprv_free(currencyNames);
}
static void
deleteCacheEntry(CurrencyNameCacheEntry* entry) {
deleteCurrencyNames(entry->currencyNames, entry->totalCurrencyNameCount);
deleteCurrencyNames(entry->currencySymbols, entry->totalCurrencySymbolCount);
uprv_free(entry);
}
// Cache clean up
static UBool U_CALLCONV
currency_cache_cleanup(void) {
for (int32_t i = 0; i < CURRENCY_NAME_CACHE_NUM; ++i) {
if (currCache[i]) {
deleteCacheEntry(currCache[i]);
currCache[i] = 0;
}
}
return TRUE;
}
/**
* Loads the currency name data from the cache, or from resource bundles if necessary.
* The refCount is automatically incremented. It is the caller's responsibility
* to decrement it when done!
*/
static CurrencyNameCacheEntry*
getCacheEntry(const char* locale, UErrorCode& ec) {
int32_t total_currency_name_count = 0;
CurrencyNameStruct* currencyNames = NULL;
int32_t total_currency_symbol_count = 0;
CurrencyNameStruct* currencySymbols = NULL;
CurrencyNameCacheEntry* cacheEntry = NULL;
umtx_lock(&gCurrencyCacheMutex);
// in order to handle racing correctly,
// not putting 'search' in a separate function.
int8_t found = -1;
for (int8_t i = 0; i < CURRENCY_NAME_CACHE_NUM; ++i) {
if (currCache[i]!= NULL &&
uprv_strcmp(locale, currCache[i]->locale) == 0) {
found = i;
break;
}
}
if (found != -1) {
cacheEntry = currCache[found];
++(cacheEntry->refCount);
}
umtx_unlock(&gCurrencyCacheMutex);
if (found == -1) {
collectCurrencyNames(locale, &currencyNames, &total_currency_name_count, &currencySymbols, &total_currency_symbol_count, ec);
if (U_FAILURE(ec)) {
return NULL;
}
umtx_lock(&gCurrencyCacheMutex);
// check again.
for (int8_t i = 0; i < CURRENCY_NAME_CACHE_NUM; ++i) {
if (currCache[i]!= NULL &&
uprv_strcmp(locale, currCache[i]->locale) == 0) {
found = i;
break;
}
}
if (found == -1) {
// insert new entry to
// currentCacheEntryIndex % CURRENCY_NAME_CACHE_NUM
// and remove the existing entry
// currentCacheEntryIndex % CURRENCY_NAME_CACHE_NUM
// from cache.
cacheEntry = currCache[currentCacheEntryIndex];
if (cacheEntry) {
--(cacheEntry->refCount);
// delete if the ref count is zero
if (cacheEntry->refCount == 0) {
deleteCacheEntry(cacheEntry);
}
}
cacheEntry = (CurrencyNameCacheEntry*)uprv_malloc(sizeof(CurrencyNameCacheEntry));
currCache[currentCacheEntryIndex] = cacheEntry;
uprv_strcpy(cacheEntry->locale, locale);
cacheEntry->currencyNames = currencyNames;
cacheEntry->totalCurrencyNameCount = total_currency_name_count;
cacheEntry->currencySymbols = currencySymbols;
cacheEntry->totalCurrencySymbolCount = total_currency_symbol_count;
cacheEntry->refCount = 2; // one for cache, one for reference
currentCacheEntryIndex = (currentCacheEntryIndex + 1) % CURRENCY_NAME_CACHE_NUM;
ucln_common_registerCleanup(UCLN_COMMON_CURRENCY, currency_cleanup);
} else {
deleteCurrencyNames(currencyNames, total_currency_name_count);
deleteCurrencyNames(currencySymbols, total_currency_symbol_count);
cacheEntry = currCache[found];
++(cacheEntry->refCount);
}
umtx_unlock(&gCurrencyCacheMutex);
}
return cacheEntry;
}
static void releaseCacheEntry(CurrencyNameCacheEntry* cacheEntry) {
umtx_lock(&gCurrencyCacheMutex);
--(cacheEntry->refCount);
if (cacheEntry->refCount == 0) { // remove
deleteCacheEntry(cacheEntry);
}
umtx_unlock(&gCurrencyCacheMutex);
}
U_CAPI void
uprv_parseCurrency(const char* locale,
const icu::UnicodeString& text,
icu::ParsePosition& pos,
int8_t type,
int32_t* partialMatchLen,
UChar* result,
UErrorCode& ec) {
U_NAMESPACE_USE
if (U_FAILURE(ec)) {
return;
}
CurrencyNameCacheEntry* cacheEntry = getCacheEntry(locale, ec);
if (U_FAILURE(ec)) {
return;
}
int32_t total_currency_name_count = cacheEntry->totalCurrencyNameCount;
CurrencyNameStruct* currencyNames = cacheEntry->currencyNames;
int32_t total_currency_symbol_count = cacheEntry->totalCurrencySymbolCount;
CurrencyNameStruct* currencySymbols = cacheEntry->currencySymbols;
int32_t start = pos.getIndex();
UChar inputText[MAX_CURRENCY_NAME_LEN];
UChar upperText[MAX_CURRENCY_NAME_LEN];
int32_t textLen = MIN(MAX_CURRENCY_NAME_LEN, text.length() - start);
text.extract(start, textLen, inputText);
UErrorCode ec1 = U_ZERO_ERROR;
textLen = u_strToUpper(upperText, MAX_CURRENCY_NAME_LEN, inputText, textLen, locale, &ec1);
// Make sure partialMatchLen is initialized
*partialMatchLen = 0;
int32_t max = 0;
int32_t matchIndex = -1;
// case in-sensitive comparision against currency names
searchCurrencyName(currencyNames, total_currency_name_count,
upperText, textLen, partialMatchLen, &max, &matchIndex);
#ifdef UCURR_DEBUG
printf("search in names, max = %d, matchIndex = %d\n", max, matchIndex);
#endif
int32_t maxInSymbol = 0;
int32_t matchIndexInSymbol = -1;
if (type != UCURR_LONG_NAME) { // not name only
// case sensitive comparison against currency symbols and ISO code.
searchCurrencyName(currencySymbols, total_currency_symbol_count,
inputText, textLen,
partialMatchLen,
&maxInSymbol, &matchIndexInSymbol);
}
#ifdef UCURR_DEBUG
printf("search in symbols, maxInSymbol = %d, matchIndexInSymbol = %d\n", maxInSymbol, matchIndexInSymbol);
if(matchIndexInSymbol != -1) {
printf("== ISO=%s\n", currencySymbols[matchIndexInSymbol].IsoCode);
}
#endif
if (max >= maxInSymbol && matchIndex != -1) {
u_charsToUChars(currencyNames[matchIndex].IsoCode, result, 4);
pos.setIndex(start + max);
} else if (maxInSymbol >= max && matchIndexInSymbol != -1) {
u_charsToUChars(currencySymbols[matchIndexInSymbol].IsoCode, result, 4);
pos.setIndex(start + maxInSymbol);
}
// decrease reference count
releaseCacheEntry(cacheEntry);
}
void uprv_currencyLeads(const char* locale, icu::UnicodeSet& result, UErrorCode& ec) {
U_NAMESPACE_USE
if (U_FAILURE(ec)) {
return;
}
CurrencyNameCacheEntry* cacheEntry = getCacheEntry(locale, ec);
if (U_FAILURE(ec)) {
return;
}
for (int32_t i=0; i<cacheEntry->totalCurrencySymbolCount; i++) {
const CurrencyNameStruct& info = cacheEntry->currencySymbols[i];
UChar32 cp;
U16_GET(info.currencyName, 0, 0, info.currencyNameLen, cp);
result.add(cp);
}
for (int32_t i=0; i<cacheEntry->totalCurrencyNameCount; i++) {
const CurrencyNameStruct& info = cacheEntry->currencyNames[i];
UChar32 cp;
U16_GET(info.currencyName, 0, 0, info.currencyNameLen, cp);
result.add(cp);
}
// decrease reference count
releaseCacheEntry(cacheEntry);
}
/**
* Internal method. Given a currency ISO code and a locale, return
* the "static" currency name. This is usually the same as the
* UCURR_SYMBOL_NAME, but if the latter is a choice format, then the
* format is applied to the number 2.0 (to yield the more common
* plural) to return a static name.
*
* This is used for backward compatibility with old currency logic in
* DecimalFormat and DecimalFormatSymbols.
*/
U_CAPI void
uprv_getStaticCurrencyName(const UChar* iso, const char* loc,
icu::UnicodeString& result, UErrorCode& ec)
{
U_NAMESPACE_USE
UBool isChoiceFormat;
int32_t len;
const UChar* currname = ucurr_getName(iso, loc, UCURR_SYMBOL_NAME,
&isChoiceFormat, &len, &ec);
if (U_SUCCESS(ec)) {
result.setTo(currname, len);
}
}
U_CAPI int32_t U_EXPORT2
ucurr_getDefaultFractionDigits(const UChar* currency, UErrorCode* ec) {
return ucurr_getDefaultFractionDigitsForUsage(currency,UCURR_USAGE_STANDARD,ec);
}
U_DRAFT int32_t U_EXPORT2
ucurr_getDefaultFractionDigitsForUsage(const UChar* currency, const UCurrencyUsage usage, UErrorCode* ec) {
int32_t fracDigits = 0;
if (U_SUCCESS(*ec)) {
switch (usage) {
case UCURR_USAGE_STANDARD:
fracDigits = (_findMetaData(currency, *ec))[0];
break;
case UCURR_USAGE_CASH:
fracDigits = (_findMetaData(currency, *ec))[2];
break;
default:
*ec = U_UNSUPPORTED_ERROR;
}
}
return fracDigits;
}
U_CAPI double U_EXPORT2
ucurr_getRoundingIncrement(const UChar* currency, UErrorCode* ec) {
return ucurr_getRoundingIncrementForUsage(currency, UCURR_USAGE_STANDARD, ec);
}
U_DRAFT double U_EXPORT2
ucurr_getRoundingIncrementForUsage(const UChar* currency, const UCurrencyUsage usage, UErrorCode* ec) {
double result = 0.0;
const int32_t *data = _findMetaData(currency, *ec);
if (U_SUCCESS(*ec)) {
int32_t fracDigits;
int32_t increment;
switch (usage) {
case UCURR_USAGE_STANDARD:
fracDigits = data[0];
increment = data[1];
break;
case UCURR_USAGE_CASH:
fracDigits = data[2];
increment = data[3];
break;
default:
*ec = U_UNSUPPORTED_ERROR;
return result;
}
// If the meta data is invalid, return 0.0
if (fracDigits < 0 || fracDigits > MAX_POW10) {
*ec = U_INVALID_FORMAT_ERROR;
} else {
// A rounding value of 0 or 1 indicates no rounding.
if (increment >= 2) {
// Return (increment) / 10^(fracDigits). The only actual rounding data,
// as of this writing, is CHF { 2, 5 }.
result = double(increment) / POW10[fracDigits];
}
}
}
return result;
}
U_CDECL_BEGIN
typedef struct UCurrencyContext {
uint32_t currType; /* UCurrCurrencyType */
uint32_t listIdx;
} UCurrencyContext;
/*
Please keep this list in alphabetical order.
You can look at the CLDR supplemental data or ISO-4217 for the meaning of some
of these items.
ISO-4217: http://www.iso.org/iso/en/prods-services/popstds/currencycodeslist.html
*/
static const struct CurrencyList {
const char *currency;
uint32_t currType;
} gCurrencyList[] = {
{"ADP", UCURR_COMMON|UCURR_DEPRECATED},
{"AED", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"AFA", UCURR_COMMON|UCURR_DEPRECATED},
{"AFN", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"ALK", UCURR_COMMON|UCURR_DEPRECATED},
{"ALL", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"AMD", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"ANG", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"AOA", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"AOK", UCURR_COMMON|UCURR_DEPRECATED},
{"AON", UCURR_COMMON|UCURR_DEPRECATED},
{"AOR", UCURR_COMMON|UCURR_DEPRECATED},
{"ARA", UCURR_COMMON|UCURR_DEPRECATED},
{"ARL", UCURR_COMMON|UCURR_DEPRECATED},
{"ARM", UCURR_COMMON|UCURR_DEPRECATED},
{"ARP", UCURR_COMMON|UCURR_DEPRECATED},
{"ARS", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"ATS", UCURR_COMMON|UCURR_DEPRECATED},
{"AUD", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"AWG", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"AZM", UCURR_COMMON|UCURR_DEPRECATED},
{"AZN", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"BAD", UCURR_COMMON|UCURR_DEPRECATED},
{"BAM", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"BAN", UCURR_COMMON|UCURR_DEPRECATED},
{"BBD", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"BDT", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"BEC", UCURR_UNCOMMON|UCURR_DEPRECATED},
{"BEF", UCURR_COMMON|UCURR_DEPRECATED},
{"BEL", UCURR_UNCOMMON|UCURR_DEPRECATED},
{"BGL", UCURR_COMMON|UCURR_DEPRECATED},
{"BGM", UCURR_COMMON|UCURR_DEPRECATED},
{"BGN", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"BGO", UCURR_COMMON|UCURR_DEPRECATED},
{"BHD", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"BIF", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"BMD", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"BND", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"BOB", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"BOL", UCURR_COMMON|UCURR_DEPRECATED},
{"BOP", UCURR_COMMON|UCURR_DEPRECATED},
{"BOV", UCURR_UNCOMMON|UCURR_NON_DEPRECATED},
{"BRB", UCURR_COMMON|UCURR_DEPRECATED},
{"BRC", UCURR_COMMON|UCURR_DEPRECATED},
{"BRE", UCURR_COMMON|UCURR_DEPRECATED},
{"BRL", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"BRN", UCURR_COMMON|UCURR_DEPRECATED},
{"BRR", UCURR_COMMON|UCURR_DEPRECATED},
{"BRZ", UCURR_COMMON|UCURR_DEPRECATED},
{"BSD", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"BTN", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"BUK", UCURR_COMMON|UCURR_DEPRECATED},
{"BWP", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"BYB", UCURR_COMMON|UCURR_DEPRECATED},
{"BYN", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"BYR", UCURR_COMMON|UCURR_DEPRECATED},
{"BZD", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"CAD", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"CDF", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"CHE", UCURR_UNCOMMON|UCURR_NON_DEPRECATED},
{"CHF", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"CHW", UCURR_UNCOMMON|UCURR_NON_DEPRECATED},
{"CLE", UCURR_COMMON|UCURR_DEPRECATED},
{"CLF", UCURR_UNCOMMON|UCURR_NON_DEPRECATED},
{"CLP", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"CNH", UCURR_UNCOMMON|UCURR_NON_DEPRECATED},
{"CNX", UCURR_UNCOMMON|UCURR_DEPRECATED},
{"CNY", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"COP", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"COU", UCURR_UNCOMMON|UCURR_NON_DEPRECATED},
{"CRC", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"CSD", UCURR_COMMON|UCURR_DEPRECATED},
{"CSK", UCURR_COMMON|UCURR_DEPRECATED},
{"CUC", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"CUP", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"CVE", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"CYP", UCURR_COMMON|UCURR_DEPRECATED},
{"CZK", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"DDM", UCURR_COMMON|UCURR_DEPRECATED},
{"DEM", UCURR_COMMON|UCURR_DEPRECATED},
{"DJF", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"DKK", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"DOP", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"DZD", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"ECS", UCURR_COMMON|UCURR_DEPRECATED},
{"ECV", UCURR_UNCOMMON|UCURR_DEPRECATED},
{"EEK", UCURR_COMMON|UCURR_DEPRECATED},
{"EGP", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"EQE", UCURR_COMMON|UCURR_DEPRECATED}, // questionable, remove?
{"ERN", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"ESA", UCURR_UNCOMMON|UCURR_DEPRECATED},
{"ESB", UCURR_UNCOMMON|UCURR_DEPRECATED},
{"ESP", UCURR_COMMON|UCURR_DEPRECATED},
{"ETB", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"EUR", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"FIM", UCURR_COMMON|UCURR_DEPRECATED},
{"FJD", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"FKP", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"FRF", UCURR_COMMON|UCURR_DEPRECATED},
{"GBP", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"GEK", UCURR_COMMON|UCURR_DEPRECATED},
{"GEL", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"GHC", UCURR_COMMON|UCURR_DEPRECATED},
{"GHS", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"GIP", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"GMD", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"GNF", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"GNS", UCURR_COMMON|UCURR_DEPRECATED},
{"GQE", UCURR_COMMON|UCURR_DEPRECATED},
{"GRD", UCURR_COMMON|UCURR_DEPRECATED},
{"GTQ", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"GWE", UCURR_COMMON|UCURR_DEPRECATED},
{"GWP", UCURR_COMMON|UCURR_DEPRECATED},
{"GYD", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"HKD", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"HNL", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"HRD", UCURR_COMMON|UCURR_DEPRECATED},
{"HRK", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"HTG", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"HUF", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"IDR", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"IEP", UCURR_COMMON|UCURR_DEPRECATED},
{"ILP", UCURR_COMMON|UCURR_DEPRECATED},
{"ILR", UCURR_COMMON|UCURR_DEPRECATED},
{"ILS", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"INR", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"IQD", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"IRR", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"ISJ", UCURR_COMMON|UCURR_DEPRECATED},
{"ISK", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"ITL", UCURR_COMMON|UCURR_DEPRECATED},
{"JMD", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"JOD", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"JPY", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"KES", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"KGS", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"KHR", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"KMF", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"KPW", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"KRH", UCURR_COMMON|UCURR_DEPRECATED},
{"KRO", UCURR_COMMON|UCURR_DEPRECATED},
{"KRW", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"KWD", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"KYD", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"KZT", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"LAK", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"LBP", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"LKR", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"LRD", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"LSL", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"LSM", UCURR_COMMON|UCURR_DEPRECATED}, // questionable, remove?
{"LTL", UCURR_COMMON|UCURR_DEPRECATED},
{"LTT", UCURR_COMMON|UCURR_DEPRECATED},
{"LUC", UCURR_UNCOMMON|UCURR_DEPRECATED},
{"LUF", UCURR_COMMON|UCURR_DEPRECATED},
{"LUL", UCURR_UNCOMMON|UCURR_DEPRECATED},
{"LVL", UCURR_COMMON|UCURR_DEPRECATED},
{"LVR", UCURR_COMMON|UCURR_DEPRECATED},
{"LYD", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"MAD", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"MAF", UCURR_COMMON|UCURR_DEPRECATED},
{"MCF", UCURR_COMMON|UCURR_DEPRECATED},
{"MDC", UCURR_COMMON|UCURR_DEPRECATED},
{"MDL", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"MGA", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"MGF", UCURR_COMMON|UCURR_DEPRECATED},
{"MKD", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"MKN", UCURR_COMMON|UCURR_DEPRECATED},
{"MLF", UCURR_COMMON|UCURR_DEPRECATED},
{"MMK", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"MNT", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"MOP", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"MRO", UCURR_COMMON|UCURR_DEPRECATED},
{"MRU", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"MTL", UCURR_COMMON|UCURR_DEPRECATED},
{"MTP", UCURR_COMMON|UCURR_DEPRECATED},
{"MUR", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"MVP", UCURR_COMMON|UCURR_DEPRECATED}, // questionable, remove?
{"MVR", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"MWK", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"MXN", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"MXP", UCURR_COMMON|UCURR_DEPRECATED},
{"MXV", UCURR_UNCOMMON|UCURR_NON_DEPRECATED},
{"MYR", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"MZE", UCURR_COMMON|UCURR_DEPRECATED},
{"MZM", UCURR_COMMON|UCURR_DEPRECATED},
{"MZN", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"NAD", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"NGN", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"NIC", UCURR_COMMON|UCURR_DEPRECATED},
{"NIO", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"NLG", UCURR_COMMON|UCURR_DEPRECATED},
{"NOK", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"NPR", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"NZD", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"OMR", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"PAB", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"PEI", UCURR_COMMON|UCURR_DEPRECATED},
{"PEN", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"PES", UCURR_COMMON|UCURR_DEPRECATED},
{"PGK", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"PHP", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"PKR", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"PLN", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"PLZ", UCURR_COMMON|UCURR_DEPRECATED},
{"PTE", UCURR_COMMON|UCURR_DEPRECATED},
{"PYG", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"QAR", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"RHD", UCURR_COMMON|UCURR_DEPRECATED},
{"ROL", UCURR_COMMON|UCURR_DEPRECATED},
{"RON", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"RSD", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"RUB", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"RUR", UCURR_COMMON|UCURR_DEPRECATED},
{"RWF", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"SAR", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"SBD", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"SCR", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"SDD", UCURR_COMMON|UCURR_DEPRECATED},
{"SDG", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"SDP", UCURR_COMMON|UCURR_DEPRECATED},
{"SEK", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"SGD", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"SHP", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"SIT", UCURR_COMMON|UCURR_DEPRECATED},
{"SKK", UCURR_COMMON|UCURR_DEPRECATED},
{"SLL", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"SOS", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"SRD", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"SRG", UCURR_COMMON|UCURR_DEPRECATED},
{"SSP", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"STD", UCURR_COMMON|UCURR_DEPRECATED},
{"STN", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"SUR", UCURR_COMMON|UCURR_DEPRECATED},
{"SVC", UCURR_COMMON|UCURR_DEPRECATED},
{"SYP", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"SZL", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"THB", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"TJR", UCURR_COMMON|UCURR_DEPRECATED},
{"TJS", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"TMM", UCURR_COMMON|UCURR_DEPRECATED},
{"TMT", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"TND", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"TOP", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"TPE", UCURR_COMMON|UCURR_DEPRECATED},
{"TRL", UCURR_COMMON|UCURR_DEPRECATED},
{"TRY", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"TTD", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"TWD", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"TZS", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"UAH", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"UAK", UCURR_COMMON|UCURR_DEPRECATED},
{"UGS", UCURR_COMMON|UCURR_DEPRECATED},
{"UGX", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"USD", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"USN", UCURR_UNCOMMON|UCURR_NON_DEPRECATED},
{"USS", UCURR_UNCOMMON|UCURR_NON_DEPRECATED},
{"UYI", UCURR_UNCOMMON|UCURR_NON_DEPRECATED},
{"UYP", UCURR_COMMON|UCURR_DEPRECATED},
{"UYU", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"UZS", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"VEB", UCURR_COMMON|UCURR_DEPRECATED},
{"VEF", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"VND", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"VNN", UCURR_COMMON|UCURR_DEPRECATED},
{"VUV", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"WST", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"XAF", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"XAG", UCURR_UNCOMMON|UCURR_NON_DEPRECATED},
{"XAU", UCURR_UNCOMMON|UCURR_NON_DEPRECATED},
{"XBA", UCURR_UNCOMMON|UCURR_NON_DEPRECATED},
{"XBB", UCURR_UNCOMMON|UCURR_NON_DEPRECATED},
{"XBC", UCURR_UNCOMMON|UCURR_NON_DEPRECATED},
{"XBD", UCURR_UNCOMMON|UCURR_NON_DEPRECATED},
{"XCD", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"XDR", UCURR_UNCOMMON|UCURR_NON_DEPRECATED},
{"XEU", UCURR_UNCOMMON|UCURR_DEPRECATED},
{"XFO", UCURR_UNCOMMON|UCURR_NON_DEPRECATED},
{"XFU", UCURR_UNCOMMON|UCURR_NON_DEPRECATED},
{"XOF", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"XPD", UCURR_UNCOMMON|UCURR_NON_DEPRECATED},
{"XPF", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"XPT", UCURR_UNCOMMON|UCURR_NON_DEPRECATED},
{"XRE", UCURR_UNCOMMON|UCURR_DEPRECATED},
{"XSU", UCURR_UNCOMMON|UCURR_NON_DEPRECATED},
{"XTS", UCURR_UNCOMMON|UCURR_NON_DEPRECATED},
{"XUA", UCURR_UNCOMMON|UCURR_NON_DEPRECATED},
{"XXX", UCURR_UNCOMMON|UCURR_NON_DEPRECATED},
{"YDD", UCURR_COMMON|UCURR_DEPRECATED},
{"YER", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"YUD", UCURR_COMMON|UCURR_DEPRECATED},
{"YUM", UCURR_COMMON|UCURR_DEPRECATED},
{"YUN", UCURR_COMMON|UCURR_DEPRECATED},
{"YUR", UCURR_COMMON|UCURR_DEPRECATED},
{"ZAL", UCURR_UNCOMMON|UCURR_DEPRECATED},
{"ZAR", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"ZMK", UCURR_COMMON|UCURR_DEPRECATED},
{"ZMW", UCURR_COMMON|UCURR_NON_DEPRECATED},
{"ZRN", UCURR_COMMON|UCURR_DEPRECATED},
{"ZRZ", UCURR_COMMON|UCURR_DEPRECATED},
{"ZWD", UCURR_COMMON|UCURR_DEPRECATED},
{"ZWL", UCURR_COMMON|UCURR_DEPRECATED},
{"ZWR", UCURR_COMMON|UCURR_DEPRECATED},
{ NULL, 0 } // Leave here to denote the end of the list.
};
#define UCURR_MATCHES_BITMASK(variable, typeToMatch) \
((typeToMatch) == UCURR_ALL || ((variable) & (typeToMatch)) == (typeToMatch))
static int32_t U_CALLCONV
ucurr_countCurrencyList(UEnumeration *enumerator, UErrorCode * /*pErrorCode*/) {
UCurrencyContext *myContext = (UCurrencyContext *)(enumerator->context);
uint32_t currType = myContext->currType;
int32_t count = 0;
/* Count the number of items matching the type we are looking for. */
for (int32_t idx = 0; gCurrencyList[idx].currency != NULL; idx++) {
if (UCURR_MATCHES_BITMASK(gCurrencyList[idx].currType, currType)) {
count++;
}
}
return count;
}
static const char* U_CALLCONV
ucurr_nextCurrencyList(UEnumeration *enumerator,
int32_t* resultLength,
UErrorCode * /*pErrorCode*/)
{
UCurrencyContext *myContext = (UCurrencyContext *)(enumerator->context);
/* Find the next in the list that matches the type we are looking for. */
while (myContext->listIdx < UPRV_LENGTHOF(gCurrencyList)-1) {
const struct CurrencyList *currItem = &gCurrencyList[myContext->listIdx++];
if (UCURR_MATCHES_BITMASK(currItem->currType, myContext->currType))
{
if (resultLength) {
*resultLength = 3; /* Currency codes are only 3 chars long */
}
return currItem->currency;
}
}
/* We enumerated too far. */
if (resultLength) {
*resultLength = 0;
}
return NULL;
}
static void U_CALLCONV
ucurr_resetCurrencyList(UEnumeration *enumerator, UErrorCode * /*pErrorCode*/) {
((UCurrencyContext *)(enumerator->context))->listIdx = 0;
}
static void U_CALLCONV
ucurr_closeCurrencyList(UEnumeration *enumerator) {
uprv_free(enumerator->context);
uprv_free(enumerator);
}
static void U_CALLCONV
ucurr_createCurrencyList(UHashtable *isoCodes, UErrorCode* status){
UErrorCode localStatus = U_ZERO_ERROR;
// Look up the CurrencyMap element in the root bundle.
UResourceBundle *rb = ures_openDirect(U_ICUDATA_CURR, CURRENCY_DATA, &localStatus);
UResourceBundle *currencyMapArray = ures_getByKey(rb, CURRENCY_MAP, rb, &localStatus);
if (U_SUCCESS(localStatus)) {
// process each entry in currency map
for (int32_t i=0; i<ures_getSize(currencyMapArray); i++) {
// get the currency resource
UResourceBundle *currencyArray = ures_getByIndex(currencyMapArray, i, NULL, &localStatus);
// process each currency
if (U_SUCCESS(localStatus)) {
for (int32_t j=0; j<ures_getSize(currencyArray); j++) {
// get the currency resource
UResourceBundle *currencyRes = ures_getByIndex(currencyArray, j, NULL, &localStatus);
IsoCodeEntry *entry = (IsoCodeEntry*)uprv_malloc(sizeof(IsoCodeEntry));
if (entry == NULL) {
*status = U_MEMORY_ALLOCATION_ERROR;
return;
}
// get the ISO code
int32_t isoLength = 0;
UResourceBundle *idRes = ures_getByKey(currencyRes, "id", NULL, &localStatus);
if (idRes == NULL) {
continue;
}
const UChar *isoCode = ures_getString(idRes, &isoLength, &localStatus);
// get from date
UDate fromDate = U_DATE_MIN;
UResourceBundle *fromRes = ures_getByKey(currencyRes, "from", NULL, &localStatus);
if (U_SUCCESS(localStatus)) {
int32_t fromLength = 0;
const int32_t *fromArray = ures_getIntVector(fromRes, &fromLength, &localStatus);
int64_t currDate64 = (int64_t)fromArray[0] << 32;
currDate64 |= ((int64_t)fromArray[1] & (int64_t)INT64_C(0x00000000FFFFFFFF));
fromDate = (UDate)currDate64;
}
ures_close(fromRes);
// get to date
UDate toDate = U_DATE_MAX;
localStatus = U_ZERO_ERROR;
UResourceBundle *toRes = ures_getByKey(currencyRes, "to", NULL, &localStatus);
if (U_SUCCESS(localStatus)) {
int32_t toLength = 0;
const int32_t *toArray = ures_getIntVector(toRes, &toLength, &localStatus);
int64_t currDate64 = (int64_t)toArray[0] << 32;
currDate64 |= ((int64_t)toArray[1] & (int64_t)INT64_C(0x00000000FFFFFFFF));
toDate = (UDate)currDate64;
}
ures_close(toRes);
ures_close(idRes);
ures_close(currencyRes);
entry->isoCode = isoCode;
entry->from = fromDate;
entry->to = toDate;
localStatus = U_ZERO_ERROR;
uhash_put(isoCodes, (UChar *)isoCode, entry, &localStatus);
}
} else {
*status = localStatus;
}
ures_close(currencyArray);
}
} else {
*status = localStatus;
}
ures_close(currencyMapArray);
}
static const UEnumeration gEnumCurrencyList = {
NULL,
NULL,
ucurr_closeCurrencyList,
ucurr_countCurrencyList,
uenum_unextDefault,
ucurr_nextCurrencyList,
ucurr_resetCurrencyList
};
U_CDECL_END
static void U_CALLCONV initIsoCodes(UErrorCode &status) {
U_ASSERT(gIsoCodes == NULL);
ucln_common_registerCleanup(UCLN_COMMON_CURRENCY, currency_cleanup);
UHashtable *isoCodes = uhash_open(uhash_hashUChars, uhash_compareUChars, NULL, &status);
if (U_FAILURE(status)) {
return;
}
uhash_setValueDeleter(isoCodes, deleteIsoCodeEntry);
ucurr_createCurrencyList(isoCodes, &status);
if (U_FAILURE(status)) {
uhash_close(isoCodes);
return;
}
gIsoCodes = isoCodes; // Note: gIsoCodes is const. Once set up here it is never altered,
// and read only access is safe without synchronization.
}
static void populateCurrSymbolsEquiv(icu::Hashtable *hash, UErrorCode &status) {
if (U_FAILURE(status)) { return; }
for (auto& entry : unisets::kCurrencyEntries) {
UnicodeString exemplar(entry.exemplar);
const UnicodeSet* set = unisets::get(entry.key);
if (set == nullptr) { return; }
UnicodeSetIterator it(*set);
while (it.next()) {
UnicodeString value = it.getString();
if (value == exemplar) {
// No need to mark the exemplar character as an equivalent
continue;
}
makeEquivalent(exemplar, value, hash, status);
if (U_FAILURE(status)) { return; }
}
}
}
static void U_CALLCONV initCurrSymbolsEquiv() {
U_ASSERT(gCurrSymbolsEquiv == NULL);
UErrorCode status = U_ZERO_ERROR;
ucln_common_registerCleanup(UCLN_COMMON_CURRENCY, currency_cleanup);
icu::Hashtable *temp = new icu::Hashtable(status);
if (temp == NULL) {
return;
}
if (U_FAILURE(status)) {
delete temp;
return;
}
temp->setValueDeleter(deleteUnicode);
populateCurrSymbolsEquiv(temp, status);
if (U_FAILURE(status)) {
delete temp;
return;
}
gCurrSymbolsEquiv = temp;
}
U_CAPI UBool U_EXPORT2
ucurr_isAvailable(const UChar* isoCode, UDate from, UDate to, UErrorCode* eErrorCode) {
umtx_initOnce(gIsoCodesInitOnce, &initIsoCodes, *eErrorCode);
if (U_FAILURE(*eErrorCode)) {
return FALSE;
}
IsoCodeEntry* result = (IsoCodeEntry *) uhash_get(gIsoCodes, isoCode);
if (result == NULL) {
return FALSE;
} else if (from > to) {
*eErrorCode = U_ILLEGAL_ARGUMENT_ERROR;
return FALSE;
} else if ((from > result->to) || (to < result->from)) {
return FALSE;
}
return TRUE;
}
static const icu::Hashtable* getCurrSymbolsEquiv() {
umtx_initOnce(gCurrSymbolsEquivInitOnce, &initCurrSymbolsEquiv);
return gCurrSymbolsEquiv;
}
U_CAPI UEnumeration * U_EXPORT2
ucurr_openISOCurrencies(uint32_t currType, UErrorCode *pErrorCode) {
UEnumeration *myEnum = NULL;
UCurrencyContext *myContext;
myEnum = (UEnumeration*)uprv_malloc(sizeof(UEnumeration));
if (myEnum == NULL) {
*pErrorCode = U_MEMORY_ALLOCATION_ERROR;
return NULL;
}
uprv_memcpy(myEnum, &gEnumCurrencyList, sizeof(UEnumeration));
myContext = (UCurrencyContext*)uprv_malloc(sizeof(UCurrencyContext));
if (myContext == NULL) {
*pErrorCode = U_MEMORY_ALLOCATION_ERROR;
uprv_free(myEnum);
return NULL;
}
myContext->currType = currType;
myContext->listIdx = 0;
myEnum->context = myContext;
return myEnum;
}
U_CAPI int32_t U_EXPORT2
ucurr_countCurrencies(const char* locale,
UDate date,
UErrorCode* ec)
{
int32_t currCount = 0;
if (ec != NULL && U_SUCCESS(*ec))
{
// local variables
UErrorCode localStatus = U_ZERO_ERROR;
char id[ULOC_FULLNAME_CAPACITY];
uloc_getKeywordValue(locale, "currency", id, ULOC_FULLNAME_CAPACITY, &localStatus);
// get country or country_variant in `id'
/*uint32_t variantType =*/ idForLocale(locale, id, sizeof(id), ec);
if (U_FAILURE(*ec))
{
return 0;
}
// Remove variants, which is only needed for registration.
char *idDelim = strchr(id, VAR_DELIM);
if (idDelim)
{
idDelim[0] = 0;
}
// Look up the CurrencyMap element in the root bundle.
UResourceBundle *rb = ures_openDirect(U_ICUDATA_CURR, CURRENCY_DATA, &localStatus);
UResourceBundle *cm = ures_getByKey(rb, CURRENCY_MAP, rb, &localStatus);
// Using the id derived from the local, get the currency data
UResourceBundle *countryArray = ures_getByKey(rb, id, cm, &localStatus);
// process each currency to see which one is valid for the given date
if (U_SUCCESS(localStatus))
{
for (int32_t i=0; i<ures_getSize(countryArray); i++)
{
// get the currency resource
UResourceBundle *currencyRes = ures_getByIndex(countryArray, i, NULL, &localStatus);
// get the from date
int32_t fromLength = 0;
UResourceBundle *fromRes = ures_getByKey(currencyRes, "from", NULL, &localStatus);
const int32_t *fromArray = ures_getIntVector(fromRes, &fromLength, &localStatus);
int64_t currDate64 = (int64_t)fromArray[0] << 32;
currDate64 |= ((int64_t)fromArray[1] & (int64_t)INT64_C(0x00000000FFFFFFFF));
UDate fromDate = (UDate)currDate64;
if (ures_getSize(currencyRes)> 2)
{
int32_t toLength = 0;
UResourceBundle *toRes = ures_getByKey(currencyRes, "to", NULL, &localStatus);
const int32_t *toArray = ures_getIntVector(toRes, &toLength, &localStatus);
currDate64 = (int64_t)toArray[0] << 32;
currDate64 |= ((int64_t)toArray[1] & (int64_t)INT64_C(0x00000000FFFFFFFF));
UDate toDate = (UDate)currDate64;
if ((fromDate <= date) && (date < toDate))
{
currCount++;
}
ures_close(toRes);
}
else
{
if (fromDate <= date)
{
currCount++;
}
}
// close open resources
ures_close(currencyRes);
ures_close(fromRes);
} // end For loop
} // end if (U_SUCCESS(localStatus))
ures_close(countryArray);
// Check for errors
if (*ec == U_ZERO_ERROR || localStatus != U_ZERO_ERROR)
{
// There is nothing to fallback to.
// Report the failure/warning if possible.
*ec = localStatus;
}
if (U_SUCCESS(*ec))
{
// no errors
return currCount;
}
}
// If we got here, either error code is invalid or
// some argument passed is no good.
return 0;
}
U_CAPI int32_t U_EXPORT2
ucurr_forLocaleAndDate(const char* locale,
UDate date,
int32_t index,
UChar* buff,
int32_t buffCapacity,
UErrorCode* ec)
{
int32_t resLen = 0;
int32_t currIndex = 0;
const UChar* s = NULL;
if (ec != NULL && U_SUCCESS(*ec))
{
// check the arguments passed
if ((buff && buffCapacity) || !buffCapacity )
{
// local variables
UErrorCode localStatus = U_ZERO_ERROR;
char id[ULOC_FULLNAME_CAPACITY];
resLen = uloc_getKeywordValue(locale, "currency", id, ULOC_FULLNAME_CAPACITY, &localStatus);
// get country or country_variant in `id'
/*uint32_t variantType =*/ idForLocale(locale, id, sizeof(id), ec);
if (U_FAILURE(*ec))
{
return 0;
}
// Remove variants, which is only needed for registration.
char *idDelim = strchr(id, VAR_DELIM);
if (idDelim)
{
idDelim[0] = 0;
}
// Look up the CurrencyMap element in the root bundle.
UResourceBundle *rb = ures_openDirect(U_ICUDATA_CURR, CURRENCY_DATA, &localStatus);
UResourceBundle *cm = ures_getByKey(rb, CURRENCY_MAP, rb, &localStatus);
// Using the id derived from the local, get the currency data
UResourceBundle *countryArray = ures_getByKey(rb, id, cm, &localStatus);
// process each currency to see which one is valid for the given date
bool matchFound = false;
if (U_SUCCESS(localStatus))
{
if ((index <= 0) || (index> ures_getSize(countryArray)))
{
// requested index is out of bounds
ures_close(countryArray);
return 0;
}
for (int32_t i=0; i<ures_getSize(countryArray); i++)
{
// get the currency resource
UResourceBundle *currencyRes = ures_getByIndex(countryArray, i, NULL, &localStatus);
s = ures_getStringByKey(currencyRes, "id", &resLen, &localStatus);
// get the from date
int32_t fromLength = 0;
UResourceBundle *fromRes = ures_getByKey(currencyRes, "from", NULL, &localStatus);
const int32_t *fromArray = ures_getIntVector(fromRes, &fromLength, &localStatus);
int64_t currDate64 = (int64_t)fromArray[0] << 32;
currDate64 |= ((int64_t)fromArray[1] & (int64_t)INT64_C(0x00000000FFFFFFFF));
UDate fromDate = (UDate)currDate64;
if (ures_getSize(currencyRes)> 2)
{
int32_t toLength = 0;
UResourceBundle *toRes = ures_getByKey(currencyRes, "to", NULL, &localStatus);
const int32_t *toArray = ures_getIntVector(toRes, &toLength, &localStatus);
currDate64 = (int64_t)toArray[0] << 32;
currDate64 |= ((int64_t)toArray[1] & (int64_t)INT64_C(0x00000000FFFFFFFF));
UDate toDate = (UDate)currDate64;
if ((fromDate <= date) && (date < toDate))
{
currIndex++;
if (currIndex == index)
{
matchFound = true;
}
}
ures_close(toRes);
}
else
{
if (fromDate <= date)
{
currIndex++;
if (currIndex == index)
{
matchFound = true;
}
}
}
// close open resources
ures_close(currencyRes);
ures_close(fromRes);
// check for loop exit
if (matchFound)
{
break;
}
} // end For loop
}
ures_close(countryArray);
// Check for errors
if (*ec == U_ZERO_ERROR || localStatus != U_ZERO_ERROR)
{
// There is nothing to fallback to.
// Report the failure/warning if possible.
*ec = localStatus;
}
if (U_SUCCESS(*ec))
{
// no errors
if((buffCapacity> resLen) && matchFound)
{
// write out the currency value
u_strcpy(buff, s);
}
else
{
return 0;
}
}
// return null terminated currency string
return u_terminateUChars(buff, buffCapacity, resLen, ec);
}
else
{
// illegal argument encountered
*ec = U_ILLEGAL_ARGUMENT_ERROR;
}
}
// If we got here, either error code is invalid or
// some argument passed is no good.
return resLen;
}
static const UEnumeration