michael@0: /**
michael@0:  *******************************************************************************
michael@0:  * Copyright (C) 2001-2004, International Business Machines Corporation and    *
michael@0:  * others. All Rights Reserved.                                                *
michael@0:  *******************************************************************************
michael@0:  *
michael@0:  *******************************************************************************
michael@0:  */
michael@0: #include "unicode/utypes.h"
michael@0: 
michael@0: #if !UCONFIG_NO_SERVICE
michael@0: 
michael@0: #include "unicode/resbund.h"
michael@0: #include "uresimp.h"
michael@0: #include "cmemory.h"
michael@0: #include "servloc.h"
michael@0: #include "ustrfmt.h"
michael@0: #include "uhash.h"
michael@0: #include "charstr.h"
michael@0: #include "ucln_cmn.h"
michael@0: #include "uassert.h"
michael@0: 
michael@0: #define UNDERSCORE_CHAR ((UChar)0x005f)
michael@0: #define AT_SIGN_CHAR    ((UChar)64)
michael@0: #define PERIOD_CHAR     ((UChar)46)
michael@0: 
michael@0: U_NAMESPACE_BEGIN
michael@0: 
michael@0: LocaleKey*
michael@0: LocaleKey::createWithCanonicalFallback(const UnicodeString* primaryID,
michael@0:                                        const UnicodeString* canonicalFallbackID,
michael@0:                                        UErrorCode& status)
michael@0: {
michael@0:     return LocaleKey::createWithCanonicalFallback(primaryID, canonicalFallbackID, KIND_ANY, status);
michael@0: }
michael@0: 
michael@0: LocaleKey*
michael@0: LocaleKey::createWithCanonicalFallback(const UnicodeString* primaryID,
michael@0:                                        const UnicodeString* canonicalFallbackID,
michael@0:                                        int32_t kind,
michael@0:                                        UErrorCode& status)
michael@0: {
michael@0:     if (primaryID == NULL || U_FAILURE(status)) {
michael@0:         return NULL;
michael@0:     }
michael@0:     UnicodeString canonicalPrimaryID;
michael@0:     LocaleUtility::canonicalLocaleString(primaryID, canonicalPrimaryID);
michael@0:     return new LocaleKey(*primaryID, canonicalPrimaryID, canonicalFallbackID, kind);
michael@0: }
michael@0: 
michael@0: LocaleKey::LocaleKey(const UnicodeString& primaryID,
michael@0:                      const UnicodeString& canonicalPrimaryID,
michael@0:                      const UnicodeString* canonicalFallbackID,
michael@0:                      int32_t kind)
michael@0:   : ICUServiceKey(primaryID)
michael@0:   , _kind(kind)
michael@0:   , _primaryID(canonicalPrimaryID)
michael@0:   , _fallbackID()
michael@0:   , _currentID()
michael@0: {
michael@0:     _fallbackID.setToBogus();
michael@0:     if (_primaryID.length() != 0) {
michael@0:         if (canonicalFallbackID != NULL && _primaryID != *canonicalFallbackID) {
michael@0:             _fallbackID = *canonicalFallbackID;
michael@0:         }
michael@0:     }
michael@0: 
michael@0:     _currentID = _primaryID;
michael@0: }
michael@0: 
michael@0: LocaleKey::~LocaleKey() {}
michael@0: 
michael@0: UnicodeString&
michael@0: LocaleKey::prefix(UnicodeString& result) const {
michael@0:     if (_kind != KIND_ANY) {
michael@0:         UChar buffer[64];
michael@0:         uprv_itou(buffer, 64, _kind, 10, 0);
michael@0:         UnicodeString temp(buffer);
michael@0:         result.append(temp);
michael@0:     }
michael@0:     return result;
michael@0: }
michael@0: 
michael@0: int32_t
michael@0: LocaleKey::kind() const {
michael@0:     return _kind;
michael@0: }
michael@0: 
michael@0: UnicodeString&
michael@0: LocaleKey::canonicalID(UnicodeString& result) const {
michael@0:     return result.append(_primaryID);
michael@0: }
michael@0: 
michael@0: UnicodeString&
michael@0: LocaleKey::currentID(UnicodeString& result) const {
michael@0:     if (!_currentID.isBogus()) {
michael@0:         result.append(_currentID);
michael@0:     }
michael@0:     return result;
michael@0: }
michael@0: 
michael@0: UnicodeString&
michael@0: LocaleKey::currentDescriptor(UnicodeString& result) const {
michael@0:     if (!_currentID.isBogus()) {
michael@0:         prefix(result).append(PREFIX_DELIMITER).append(_currentID);
michael@0:     } else {
michael@0:         result.setToBogus();
michael@0:     }
michael@0:     return result;
michael@0: }
michael@0: 
michael@0: Locale&
michael@0: LocaleKey::canonicalLocale(Locale& result) const {
michael@0:     return LocaleUtility::initLocaleFromName(_primaryID, result);
michael@0: }
michael@0: 
michael@0: Locale&
michael@0: LocaleKey::currentLocale(Locale& result) const {
michael@0:     return LocaleUtility::initLocaleFromName(_currentID, result);
michael@0: }
michael@0: 
michael@0: UBool
michael@0: LocaleKey::fallback() {
michael@0:     if (!_currentID.isBogus()) {
michael@0:         int x = _currentID.lastIndexOf(UNDERSCORE_CHAR);
michael@0:         if (x != -1) {
michael@0:             _currentID.remove(x); // truncate current or fallback, whichever we're pointing to
michael@0:             return TRUE;
michael@0:         }
michael@0: 
michael@0:         if (!_fallbackID.isBogus()) {
michael@0:             _currentID = _fallbackID;
michael@0:             _fallbackID.setToBogus();
michael@0:             return TRUE;
michael@0:         }
michael@0: 
michael@0:         if (_currentID.length() > 0) {
michael@0:             _currentID.remove(0); // completely truncate
michael@0:             return TRUE;
michael@0:         }
michael@0: 
michael@0:         _currentID.setToBogus();
michael@0:     }
michael@0: 
michael@0:     return FALSE;
michael@0: }
michael@0: 
michael@0: UBool
michael@0: LocaleKey::isFallbackOf(const UnicodeString& id) const {
michael@0:     UnicodeString temp(id);
michael@0:     parseSuffix(temp);
michael@0:     return temp.indexOf(_primaryID) == 0 &&
michael@0:         (temp.length() == _primaryID.length() ||
michael@0:         temp.charAt(_primaryID.length()) == UNDERSCORE_CHAR);
michael@0: }
michael@0: 
michael@0: #ifdef SERVICE_DEBUG
michael@0: UnicodeString&
michael@0: LocaleKey::debug(UnicodeString& result) const
michael@0: {
michael@0:     ICUServiceKey::debug(result);
michael@0:     result.append(" kind: ");
michael@0:     result.append(_kind);
michael@0:     result.append(" primaryID: ");
michael@0:     result.append(_primaryID);
michael@0:     result.append(" fallbackID: ");
michael@0:     result.append(_fallbackID);
michael@0:     result.append(" currentID: ");
michael@0:     result.append(_currentID);
michael@0:     return result;
michael@0: }
michael@0: 
michael@0: UnicodeString&
michael@0: LocaleKey::debugClass(UnicodeString& result) const
michael@0: {
michael@0:     return result.append("LocaleKey ");
michael@0: }
michael@0: #endif
michael@0: 
michael@0: UOBJECT_DEFINE_RTTI_IMPLEMENTATION(LocaleKey)
michael@0: 
michael@0: U_NAMESPACE_END
michael@0: 
michael@0: /* !UCONFIG_NO_SERVICE */
michael@0: #endif
michael@0: 
michael@0: