// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
******************************************************************************
* Copyright (C) 1996-2014, International Business Machines Corporation and
* others. All Rights Reserved.
******************************************************************************
*/
/**
* File coll.cpp
*
* Created by: Helena Shih
*
* Modification History:
*
* Date Name Description
* 2/5/97 aliu Modified createDefault to load collation data from
* binary files when possible. Added related methods
* createCollationFromFile, chopLocale, createPathName.
* 2/11/97 aliu Added methods addToCache, findInCache, which implement
* a Collation cache. Modified createDefault to look in
* cache first, and also to store newly created Collation
* objects in the cache. Modified to not use gLocPath.
* 2/12/97 aliu Modified to create objects from RuleBasedCollator cache.
* Moved cache out of Collation class.
* 2/13/97 aliu Moved several methods out of this class and into
* RuleBasedCollator, with modifications. Modified
* createDefault() to call new RuleBasedCollator(Locale&)
* constructor. General clean up and documentation.
* 2/20/97 helena Added clone, operator==, operator!=, operator=, and copy
* constructor.
* 05/06/97 helena Added memory allocation error detection.
* 05/08/97 helena Added createInstance().
* 6/20/97 helena Java class name change.
* 04/23/99 stephen Removed EDecompositionMode, merged with
* Normalizer::EMode
* 11/23/9 srl Inlining of some critical functions
* 01/29/01 synwee Modified into a C++ wrapper calling C APIs (ucol.h)
* 2012-2014 markus Rewritten in C++ again.
*/
#include "utypeinfo.h" // for 'typeid' to work
#include "unicode/utypes.h"
#if !UCONFIG_NO_COLLATION
#include "unicode/coll.h"
#include "unicode/tblcoll.h"
#include "collationdata.h"
#include "collationroot.h"
#include "collationtailoring.h"
#include "ucol_imp.h"
#include "cstring.h"
#include "cmemory.h"
#include "umutex.h"
#include "servloc.h"
#include "uassert.h"
#include "ustrenum.h"
#include "uresimp.h"
#include "ucln_in.h"
static icu::Locale* availableLocaleList = NULL;
static int32_t availableLocaleListCount;
#if !UCONFIG_NO_SERVICE
static icu::ICULocaleService* gService = NULL;
static icu::UInitOnce gServiceInitOnce = U_INITONCE_INITIALIZER;
#endif
static icu::UInitOnce gAvailableLocaleListInitOnce;
/**
* Release all static memory held by collator.
*/
U_CDECL_BEGIN
static UBool U_CALLCONV collator_cleanup(void) {
#if !UCONFIG_NO_SERVICE
if (gService) {
delete gService;
gService = NULL;
}
gServiceInitOnce.reset();
#endif
if (availableLocaleList) {
delete []availableLocaleList;
availableLocaleList = NULL;
}
availableLocaleListCount = 0;
gAvailableLocaleListInitOnce.reset();
return TRUE;
}
U_CDECL_END
U_NAMESPACE_BEGIN
#if !UCONFIG_NO_SERVICE
// ------------------------------------------
//
// Registration
//
//-------------------------------------------
CollatorFactory::~CollatorFactory() {}
//-------------------------------------------
UBool
CollatorFactory::visible(void) const {
return TRUE;
}
//-------------------------------------------
UnicodeString&
CollatorFactory::getDisplayName(const Locale& objectLocale,
const Locale& displayLocale,
UnicodeString& result)
{
return objectLocale.getDisplayName(displayLocale, result);
}
// -------------------------------------
class ICUCollatorFactory : public ICUResourceBundleFactory {
public:
ICUCollatorFactory() : ICUResourceBundleFactory(UnicodeString(U_ICUDATA_COLL, -1, US_INV)) { }
virtual ~ICUCollatorFactory();
protected:
virtual UObject* create(const ICUServiceKey& key, const ICUService* service, UErrorCode& status) const;
};
ICUCollatorFactory::~ICUCollatorFactory() {}
UObject*
ICUCollatorFactory::create(const ICUServiceKey& key, const ICUService* /* service */, UErrorCode& status) const {
if (handlesKey(key, status)) {
const LocaleKey& lkey = (const LocaleKey&)key;
Locale loc;
// make sure the requested locale is correct
// default LocaleFactory uses currentLocale since that's the one vetted by handlesKey
// but for ICU rb resources we use the actual one since it will fallback again
lkey.canonicalLocale(loc);
return Collator::makeInstance(loc, status);
}
return NULL;
}
// -------------------------------------
class ICUCollatorService : public ICULocaleService {
public:
ICUCollatorService()
: ICULocaleService(UNICODE_STRING_SIMPLE("Collator"))
{
UErrorCode status = U_ZERO_ERROR;
registerFactory(new ICUCollatorFactory(), status);
}
virtual ~ICUCollatorService();
virtual UObject* cloneInstance(UObject* instance) const {
return ((Collator*)instance)->clone();
}
virtual UObject* handleDefault(const ICUServiceKey& key, UnicodeString* actualID, UErrorCode& status) const {
LocaleKey& lkey = (LocaleKey&)key;
if (actualID) {
// Ugly Hack Alert! We return an empty actualID to signal
// to callers that this is a default object, not a "real"
// service-created object. (TODO remove in 3.0) [aliu]
actualID->truncate(0);
}
Locale loc("");
lkey.canonicalLocale(loc);
return Collator::makeInstance(loc, status);
}
virtual UObject* getKey(ICUServiceKey& key, UnicodeString* actualReturn, UErrorCode& status) const {
UnicodeString ar;
if (actualReturn == NULL) {
actualReturn = &ar;
}
return (Collator*)ICULocaleService::getKey(key, actualReturn, status);
}
virtual UBool isDefault() const {
return countFactories() == 1;
}
};
ICUCollatorService::~ICUCollatorService() {}
// -------------------------------------
static void U_CALLCONV initService() {
gService = new ICUCollatorService();
ucln_i18n_registerCleanup(UCLN_I18N_COLLATOR, collator_cleanup);
}
static ICULocaleService*
getService(void)
{
umtx_initOnce(gServiceInitOnce, &initService);
return gService;
}
// -------------------------------------
static inline UBool
hasService(void)
{
UBool retVal = !gServiceInitOnce.isReset() && (getService() != NULL);
return retVal;
}
#endif /* UCONFIG_NO_SERVICE */
static void U_CALLCONV
initAvailableLocaleList(UErrorCode &status) {
U_ASSERT(availableLocaleListCount == 0);
U_ASSERT(availableLocaleList == NULL);
// for now, there is a hardcoded list, so just walk through that list and set it up.
UResourceBundle *index = NULL;
UResourceBundle installed;
int32_t i = 0;
ures_initStackObject(&installed);
index = ures_openDirect(U_ICUDATA_COLL, "res_index", &status);
ures_getByKey(index, "InstalledLocales", &installed, &status);
if(U_SUCCESS(status)) {
availableLocaleListCount = ures_getSize(&installed);
availableLocaleList = new Locale[availableLocaleListCount];
if (availableLocaleList != NULL) {
ures_resetIterator(&installed);
while(ures_hasNext(&installed)) {
const char *tempKey = NULL;
ures_getNextString(&installed, NULL, &tempKey, &status);
availableLocaleList[i++] = Locale(tempKey);
}
}
U_ASSERT(availableLocaleListCount == i);
ures_close(&installed);
}
ures_close(index);
ucln_i18n_registerCleanup(UCLN_I18N_COLLATOR, collator_cleanup);
}
static UBool isAvailableLocaleListInitialized(UErrorCode &status) {
umtx_initOnce(gAvailableLocaleListInitOnce, &initAvailableLocaleList, status);
return U_SUCCESS(status);
}
// Collator public methods -----------------------------------------------
namespace {
static const struct {
const char *name;
UColAttribute attr;
} collAttributes[] = {
{ "colStrength", UCOL_STRENGTH },
{ "colBackwards", UCOL_FRENCH_COLLATION },
{ "colCaseLevel", UCOL_CASE_LEVEL },
{ "colCaseFirst", UCOL_CASE_FIRST },
{ "colAlternate", UCOL_ALTERNATE_HANDLING },
{ "colNormalization", UCOL_NORMALIZATION_MODE },
{ "colNumeric", UCOL_NUMERIC_COLLATION }
};
static const struct {
const char *name;
UColAttributeValue value;
} collAttributeValues[] = {
{ "primary", UCOL_PRIMARY },
{ "secondary", UCOL_SECONDARY },
{ "tertiary", UCOL_TERTIARY },
{ "quaternary", UCOL_QUATERNARY },
// Note: Not supporting typo "quarternary" because it was never supported in locale IDs.
{ "identical", UCOL_IDENTICAL },
{ "no", UCOL_OFF },
{ "yes", UCOL_ON },
{ "shifted", UCOL_SHIFTED },
{ "non-ignorable", UCOL_NON_IGNORABLE },
{ "lower", UCOL_LOWER_FIRST },
{ "upper", UCOL_UPPER_FIRST }
};
static const char *collReorderCodes[UCOL_REORDER_CODE_LIMIT - UCOL_REORDER_CODE_FIRST] = {
"space", "punct", "symbol", "currency", "digit"
};
int32_t getReorderCode(const char *s) {
for (int32_t i = 0; i < UPRV_LENGTHOF(collReorderCodes); ++i) {
if (uprv_stricmp(s, collReorderCodes[i]) == 0) {
return UCOL_REORDER_CODE_FIRST + i;
}
}
// Not supporting "others" = UCOL_REORDER_CODE_OTHERS
// as a synonym for Zzzz = USCRIPT_UNKNOWN for now:
// Avoid introducing synonyms/aliases.
return -1;
}
/**
* Sets collation attributes according to locale keywords. See
* http://www.unicode.org/reports/tr35/tr35-collation.html#Collation_Settings
*
* Using "alias" keywords and values where defined:
* http://www.unicode.org/reports/tr35/tr35.html#Old_Locale_Extension_Syntax
* http://unicode.org/repos/cldr/trunk/common/bcp47/collation.xml
*/
void setAttributesFromKeywords(const Locale &loc, Collator &coll, UErrorCode &errorCode) {
if (U_FAILURE(errorCode)) {
return;
}
if (uprv_strcmp(loc.getName(), loc.getBaseName()) == 0) {
// No keywords.
return;
}
char value[1024]; // The reordering value could be long.
// Check for collation keywords that were already deprecated
// before any were supported in createInstance() (except for "collation").
int32_t length = loc.getKeywordValue("colHiraganaQuaternary", value, UPRV_LENGTHOF(value), errorCode);
if (U_FAILURE(errorCode)) {
errorCode = U_ILLEGAL_ARGUMENT_ERROR;
return;
}
if (length != 0) {
errorCode = U_UNSUPPORTED_ERROR;
return;
}
length = loc.getKeywordValue("variableTop", value, UPRV_LENGTHOF(value), errorCode);
if (U_FAILURE(errorCode)) {
errorCode = U_ILLEGAL_ARGUMENT_ERROR;
return;
}
if (length != 0) {
errorCode = U_UNSUPPORTED_ERROR;
return;
}
// Parse known collation keywords, ignore others.
if (errorCode == U_STRING_NOT_TERMINATED_WARNING) {
errorCode = U_ZERO_ERROR;
}
for (int32_t i = 0; i < UPRV_LENGTHOF(collAttributes); ++i) {
length = loc.getKeywordValue(collAttributes[i].name, value, UPRV_LENGTHOF(value), errorCode);
if (U_FAILURE(errorCode) || errorCode == U_STRING_NOT_TERMINATED_WARNING) {
errorCode = U_ILLEGAL_ARGUMENT_ERROR;
return;
}
if (length == 0) { continue; }
for (int32_t j = 0;; ++j) {
if (j == UPRV_LENGTHOF(collAttributeValues)) {
errorCode = U_ILLEGAL_ARGUMENT_ERROR;
return;
}
if (uprv_stricmp(value, collAttributeValues[j].name) == 0) {
coll.setAttribute(collAttributes[i].attr, collAttributeValues[j].value, errorCode);
break;
}
}
}
length = loc.getKeywordValue("colReorder", value, UPRV_LENGTHOF(value), errorCode);
if (U_FAILURE(errorCode) || errorCode == U_STRING_NOT_TERMINATED_WARNING) {
errorCode = U_ILLEGAL_ARGUMENT_ERROR;
return;
}
if (length != 0) {
int32_t codes[USCRIPT_CODE_LIMIT + UCOL_REORDER_CODE_LIMIT - UCOL_REORDER_CODE_FIRST];
int32_t codesLength = 0;
char *scriptName = value;
for (;;) {
if (codesLength == UPRV_LENGTHOF(codes)) {
errorCode = U_ILLEGAL_ARGUMENT_ERROR;
return;
}
char *limit = scriptName;
char c;
while ((c = *limit) != 0 && c != '-') { ++limit; }
*limit = 0;
int32_t code;
if ((limit - scriptName) == 4) {
// Strict parsing, accept only 4-letter script codes, not long names.
code = u_getPropertyValueEnum(UCHAR_SCRIPT, scriptName);
} else {
code = getReorderCode(scriptName);
}
if (code < 0) {
errorCode = U_ILLEGAL_ARGUMENT_ERROR;
return;
}
codes[codesLength++] = code;
if (c == 0) { break; }
scriptName = limit + 1;
}
coll.setReorderCodes(codes, codesLength, errorCode);
}
length = loc.getKeywordValue("kv", value, UPRV_LENGTHOF(value), errorCode);
if (U_FAILURE(errorCode) || errorCode == U_STRING_NOT_TERMINATED_WARNING) {
errorCode = U_ILLEGAL_ARGUMENT_ERROR;
return;
}
if (length != 0) {
int32_t code = getReorderCode(value);
if (code < 0) {
errorCode = U_ILLEGAL_ARGUMENT_ERROR;
return;
}
coll.setMaxVariable((UColReorderCode)code, errorCode);
}
if (U_FAILURE(errorCode)) {
errorCode = U_ILLEGAL_ARGUMENT_ERROR;
}
}
} // namespace
Collator* U_EXPORT2 Collator::createInstance(UErrorCode& success)
{
return createInstance(Locale::getDefault(), success);
}
Collator* U_EXPORT2 Collator::createInstance(const Locale& desiredLocale,
UErrorCode& status)
{
if (U_FAILURE(status))
return 0;
if (desiredLocale.isBogus()) {
// Locale constructed from malformed locale ID or language tag.
status = U_ILLEGAL_ARGUMENT_ERROR;
return NULL;
}
Collator* coll;
#if !UCONFIG_NO_SERVICE
if (hasService()) {
Locale actualLoc;
coll = (Collator*)gService->get(desiredLocale, &actualLoc, status);
} else
#endif
{
coll = makeInstance(desiredLocale, status);
// Either returns NULL with U_FAILURE(status), or non-NULL with U_SUCCESS(status)
}
// The use of *coll in setAttributesFromKeywords can cause the NULL check to be
// optimized out of the delete even though setAttributesFromKeywords returns
// immediately if U_FAILURE(status), so we add a check here.
if (U_FAILURE(status)) {
return NULL;
}
setAttributesFromKeywords(desiredLocale, *coll, status);
if (U_FAILURE(status)) {
delete coll;
return NULL;
}
return coll;
}
Collator* Collator::makeInstance(const Locale& desiredLocale, UErrorCode& status) {
const CollationCacheEntry *entry = CollationLoader::loadTailoring(desiredLocale, status);
if (U_SUCCESS(status)) {
Collator *result = new RuleBasedCollator(entry);
if (result != NULL) {
// Both the unified cache's get() and the RBC constructor
// did addRef(). Undo one of them.
entry->removeRef();
return result;
}
status = U_MEMORY_ALLOCATION_ERROR;
}
if (entry != NULL) {
// Undo the addRef() from the cache.get().
entry->removeRef();
}
return NULL;
}
Collator *
Collator::safeClone() const {
return clone();
}
// implement deprecated, previously abstract method
Collator::EComparisonResult Collator::compare(const UnicodeString& source,
const UnicodeString& target) const
{
UErrorCode ec = U_ZERO_ERROR;
return (EComparisonResult)compare(source, target, ec);
}
// implement deprecated, previously abstract method
Collator::EComparisonResult Collator::compare(const UnicodeString& source,
const UnicodeString& target,
int32_t length) const
{
UErrorCode ec = U_ZERO_ERROR;
return (EComparisonResult)compare(source, target, length, ec);
}
// implement deprecated, previously abstract method
Collator::EComparisonResult Collator::compare(const UChar* source, int32_t sourceLength,
const UChar* target, int32_t targetLength)
const
{
UErrorCode ec = U_ZERO_ERROR;
return (EComparisonResult)compare(source, sourceLength, target, targetLength, ec);
}
UCollationResult Collator::compare(UCharIterator &/*sIter*/,
UCharIterator &/*tIter*/,
UErrorCode &status) const {
if(U_SUCCESS(status)) {
// Not implemented in the base class.
status = U_UNSUPPORTED_ERROR;
}
return UCOL_EQUAL;
}
UCollationResult Collator::compareUTF8(const StringPiece &source,
const StringPiece &target,
UErrorCode &status) const {
if(U_FAILURE(status)) {
return UCOL_EQUAL;
}
UCharIterator sIter, tIter;
uiter_setUTF8(&sIter, source.data(), source.length());
uiter_setUTF8(&tIter, target.data(), target.length());
return compare(sIter, tIter, status);
}
UBool Collator::equals(const UnicodeString& source,
const UnicodeString& target) const
{
UErrorCode ec = U_ZERO_ERROR;
return (compare(source, target, ec) == UCOL_EQUAL);
}
UBool Collator::greaterOrEqual(const UnicodeString& source,
const UnicodeString& target) const
{
UErrorCode ec = U_ZERO_ERROR;
return (compare(source, target, ec) != UCOL_LESS);
}
UBool Collator::greater(const UnicodeString& source,
const UnicodeString& target) const
{
UErrorCode ec = U_ZERO_ERROR;
return (compare(source, target, ec) == UCOL_GREATER);
}
// this API ignores registered collators, since it returns an
// array of indefinite lifetime
const Locale* U_EXPORT2 Collator::getAvailableLocales(int32_t& count)
{
UErrorCode status = U_ZERO_ERROR;
Locale *result = NULL;
count = 0;
if (isAvailableLocaleListInitialized(status))
{
result = availableLocaleList;
count = availableLocaleListCount;
}
return result;
}
UnicodeString& U_EXPORT2 Collator::getDisplayName(const Locale& objectLocale,
const Locale& displayLocale,
UnicodeString& name)
{
#if !UCONFIG_NO_SERVICE
if (hasService()) {
UnicodeString locNameStr;
LocaleUtility::initNameFromLocale(objectLocale, locNameStr);
return gService->getDisplayName(locNameStr, name, displayLocale);
}
#endif
return objectLocale.getDisplayName(displayLocale, name);
}
UnicodeString& U_EXPORT2 Collator::getDisplayName(const Locale& objectLocale,
UnicodeString& name)
{
return getDisplayName(objectLocale, Locale::getDefault(), name);
}
/* This is useless information */
/*void Collator::getVersion(UVersionInfo versionInfo) const
{
if (versionInfo!=NULL)
uprv_memcpy(versionInfo, fVersion, U_MAX_VERSION_LENGTH);
}
*/
// UCollator protected constructor destructor ----------------------------
/**
* Default constructor.
* Constructor is different from the old default Collator constructor.
* The task for determing the default collation strength and normalization mode
* is left to the child class.
*/
Collator::Collator()
: UObject()
{
}
/**
* Constructor.
* Empty constructor, does not handle the arguments.
* This constructor is done for backward compatibility with 1.7 and 1.8.
* The task for handling the argument collation strength and normalization
* mode is left to the child class.
* @param collationStrength collation strength
* @param decompositionMode
* @deprecated 2.4 use the default constructor instead
*/
Collator::Collator(UCollationStrength, UNormalizationMode )
: UObject()
{
}
Collator::~Collator()
{
}
Collator::Collator(const Collator &other)
: UObject(other)
{
}
UBool Collator::operator==(const Collator& other) const
{
// Subclasses: Call this method and then add more specific checks.
return typeid(*this) == typeid(other);
}
UBool Collator::operator!=(const Collator& other) const
{
return (UBool)!(*this == other);
}
int32_t U_EXPORT2 Collator::getBound(const uint8_t *source,
int32_t sourceLength,
UColBoundMode boundType,
uint32_t noOfLevels,
uint8_t *result,
int32_t resultLength,
UErrorCode &status)
{
return ucol_getBound(source, sourceLength, boundType, noOfLevels, result, resultLength, &status);
}
void
Collator::setLocales(const Locale& /* requestedLocale */, const Locale& /* validLocale */, const Locale& /*actualLocale*/) {
}
UnicodeSet *Collator::getTailoredSet(UErrorCode &status) const
{
if(U_FAILURE(status)) {
return NULL;
}
// everything can be changed
return new UnicodeSet(0, 0x10FFFF);
}
// -------------------------------------
#if !UCONFIG_NO_SERVICE
URegistryKey U_EXPORT2
Collator::registerInstance(Collator* toAdopt, const Locale& locale, UErrorCode& status)
{
if (U_SUCCESS(status)) {
// Set the collator locales while registering so that createInstance()
// need not guess whether the collator's locales are already set properly
// (as they are by the data loader).
toAdopt->setLocales(locale, locale, locale);
return getService()->registerInstance(toAdopt, locale, status);
}
return NULL;
}
// -------------------------------------
class CFactory : public LocaleKeyFactory {
private:
CollatorFactory* _delegate;
Hashtable* _ids;
public:
CFactory(CollatorFactory* delegate, UErrorCode& status)
: LocaleKeyFactory(delegate->visible() ? VISIBLE : INVISIBLE)
, _delegate(delegate)
, _ids(NULL)
{
if (U_SUCCESS(status)) {
int32_t count = 0;
_ids = new Hashtable(status);
if (_ids) {
const UnicodeString * idlist = _delegate->getSupportedIDs(count, status);
for (int i = 0; i < count; ++i) {
_ids->put(idlist[i], (void*)this, status);
if (U_FAILURE(status)) {
delete _ids;
_ids = NULL;
return;
}
}
} else {
status = U_MEMORY_ALLOCATION_ERROR;
}
}
}
virtual ~CFactory();
virtual UObject* create(const ICUServiceKey& key, const ICUService* service, UErrorCode& status) const;
protected:
virtual const Hashtable* getSupportedIDs(UErrorCode& status) const
{
if (U_SUCCESS(status)) {
return _ids;
}
return NULL;
}
virtual UnicodeString&
getDisplayName(const UnicodeString& id, const Locale& locale, UnicodeString& result) const;
};
CFactory::~CFactory()
{
delete _delegate;
delete _ids;
}
UObject*
CFactory::create(const ICUServiceKey& key, const ICUService* /* service */, UErrorCode& status) const
{
if (handlesKey(key, status)) {
const LocaleKey& lkey = (const LocaleKey&)key;
Locale validLoc;
lkey.currentLocale(validLoc);
return _delegate->createCollator(validLoc);
}
return NULL;
}
UnicodeString&
CFactory::getDisplayName(const UnicodeString& id, const Locale& locale, UnicodeString& result) const
{
if ((_coverage & 0x1) == 0) {
UErrorCode status = U_ZERO_ERROR;
const Hashtable* ids = getSupportedIDs(status);
if (ids && (ids->get(id) != NULL)) {
Locale loc;
LocaleUtility::initLocaleFromName(id, loc);
return _delegate->getDisplayName(loc, locale, result);
}
}
result.setToBogus();
return result;
}
URegistryKey U_EXPORT2
Collator::registerFactory(CollatorFactory* toAdopt, UErrorCode& status)
{
if (U_SUCCESS(status)) {
CFactory* f = new CFactory(toAdopt, status);
if (f) {
return getService()->registerFactory(f, status);
}
status = U_MEMORY_ALLOCATION_ERROR;
}
return NULL;
}
// -------------------------------------
UBool U_EXPORT2
Collator::unregister(URegistryKey key, UErrorCode& status)
{
if (U_SUCCESS(status)) {
if (hasService()) {
return gService->unregister(key, status);
}
status = U_ILLEGAL_ARGUMENT_ERROR;
}
return FALSE;
}
#endif /* UCONFIG_NO_SERVICE */
class CollationLocaleListEnumeration : public StringEnumeration {
private:
int32_t index;
public:
static UClassID U_EXPORT2 getStaticClassID(void);
virtual UClassID getDynamicClassID(void) const;
public:
CollationLocaleListEnumeration()
: index(0)
{
// The global variables should already be initialized.
//isAvailableLocaleListInitialized(status);
}
virtual ~CollationLocaleListEnumeration();
virtual StringEnumeration * clone() const
{
CollationLocaleListEnumeration *result = new CollationLocaleListEnumeration();
if (result) {
result->index = index;
}
return result;
}
virtual int32_t count(UErrorCode &/*status*/) const {
return availableLocaleListCount;
}
virtual const char* next(int32_t* resultLength, UErrorCode& /*status*/) {
const char* result;
if(index < availableLocaleListCount) {
result = availableLocaleList[index++].getName();
if(resultLength != NULL) {
*resultLength = (int32_t)uprv_strlen(result);
}
} else {
if(resultLength != NULL) {
*resultLength = 0;
}
result = NULL;
}
return result;
}
virtual const UnicodeString* snext(UErrorCode& status) {
int32_t resultLength = 0;
const char *s = next(&resultLength, status);
return setChars(s, resultLength, status);
}
virtual void reset(UErrorCode& /*status*/) {
index = 0;
}
};
CollationLocaleListEnumeration::~CollationLocaleListEnumeration() {}
UOBJECT_DEFINE_RTTI_IMPLEMENTATION(CollationLocaleListEnumeration)
// -------------------------------------
StringEnumeration* U_EXPORT2
Collator::getAvailableLocales(void)
{
#if !UCONFIG_NO_SERVICE
if (hasService()) {
return getService()->getAvailableLocales();
}
#endif /* UCONFIG_NO_SERVICE */
UErrorCode status = U_ZERO_ERROR;
if (isAvailableLocaleListInitialized(status)) {
return new CollationLocaleListEnumeration();
}
return NULL;
}
StringEnumeration* U_EXPORT2
Collator::getKeywords(UErrorCode& status) {
return UStringEnumeration::fromUEnumeration(
ucol_getKeywords(&status), status);
}
StringEnumeration* U_EXPORT2
Collator::getKeywordValues(const char *keyword, UErrorCode& status) {
return UStringEnumeration::fromUEnumeration(
ucol_getKeywordValues(keyword, &status), status);
}
StringEnumeration* U_EXPORT2
Collator::getKeywordValuesForLocale(const char* key, const Locale& locale,
UBool commonlyUsed, UErrorCode& status) {
return UStringEnumeration::fromUEnumeration(
ucol_getKeywordValuesForLocale(
key, locale.getName(), commonlyUsed, &status),
status);
}
Locale U_EXPORT2
Collator::getFunctionalEquivalent(const char* keyword, const Locale& locale,
UBool& isAvailable, UErrorCode& status) {
// This is a wrapper over ucol_getFunctionalEquivalent
char loc[ULOC_FULLNAME_CAPACITY];
/*int32_t len =*/ ucol_getFunctionalEquivalent(loc, sizeof(loc),
keyword, locale.getName(), &isAvailable, &status);
if (U_FAILURE(status)) {
*loc = 0; // root
}
return Locale::createFromName(loc);
}
Collator::ECollationStrength
Collator::getStrength(void) const {
UErrorCode intStatus = U_ZERO_ERROR;
return (ECollationStrength)getAttribute(UCOL_STRENGTH, intStatus);
}
void
Collator::setStrength(ECollationStrength newStrength) {
UErrorCode intStatus = U_ZERO_ERROR;
setAttribute(UCOL_STRENGTH, (UColAttributeValue)newStrength, intStatus);
}
Collator &
Collator::setMaxVariable(UColReorderCode /*group*/, UErrorCode &errorCode) {
if (U_SUCCESS(errorCode)) {
errorCode = U_UNSUPPORTED_ERROR;
}
return *this;
}
UColReorderCode
Collator::getMaxVariable() const {
return UCOL_REORDER_CODE_PUNCTUATION;
}
int32_t
Collator::getReorderCodes(int32_t* /* dest*/,
int32_t /* destCapacity*/,
UErrorCode& status) const
{
if (U_SUCCESS(status)) {
status = U_UNSUPPORTED_ERROR;
}
return 0;
}
void
Collator::setReorderCodes(const int32_t* /* reorderCodes */,
int32_t /* reorderCodesLength */,
UErrorCode& status)
{
if (U_SUCCESS(status)) {
status = U_UNSUPPORTED_ERROR;
}
}
int32_t
Collator::getEquivalentReorderCodes(int32_t reorderCode,
int32_t *dest, int32_t capacity,
UErrorCode &errorCode) {
if(U_FAILURE(errorCode)) { return 0; }
if(capacity < 0 || (dest == NULL && capacity > 0)) {
errorCode = U_ILLEGAL_ARGUMENT_ERROR;
return 0;
}
const CollationData *baseData = CollationRoot::getData(errorCode);
if(U_FAILURE(errorCode)) { return 0; }
return baseData->getEquivalentScripts(reorderCode, dest, capacity, errorCode);
}
int32_t
Collator::internalGetShortDefinitionString(const char * /*locale*/,
char * /*buffer*/,
int32_t /*capacity*/,
UErrorCode &status) const {
if(U_SUCCESS(status)) {
status = U_UNSUPPORTED_ERROR; /* Shouldn't happen, internal function */
}
return 0;
}
UCollationResult
Collator::internalCompareUTF8(const char *left, int32_t leftLength,
const char *right, int32_t rightLength,
UErrorCode &errorCode) const {
if(U_FAILURE(errorCode)) { return UCOL_EQUAL; }
if((left == NULL && leftLength != 0) || (right == NULL && rightLength != 0)) {
errorCode = U_ILLEGAL_ARGUMENT_ERROR;
return UCOL_EQUAL;
}
return compareUTF8(
StringPiece(left, (leftLength < 0) ? static_cast<int32_t>(uprv_strlen(left)) : leftLength),
StringPiece(right, (rightLength < 0) ? static_cast<int32_t>(uprv_strlen(right)) : rightLength),
errorCode);
}
int32_t
Collator::internalNextSortKeyPart(UCharIterator * /*iter*/, uint32_t /*state*/[2],
uint8_t * /*dest*/, int32_t /*count*/, UErrorCode &errorCode) const {
if (U_SUCCESS(errorCode)) {
errorCode = U_UNSUPPORTED_ERROR;
}
return 0;
}
// UCollator private data members ----------------------------------------
/* This is useless information */
/*const UVersionInfo Collator::fVersion = {1, 1, 0, 0};*/
// -------------------------------------
U_NAMESPACE_END
#endif /* #if !UCONFIG_NO_COLLATION */
/* eof */