icuSources/common/servlk.cpp

   1 /**
   2  *******************************************************************************
   3  * Copyright (C) 2001-2014, International Business Machines Corporation and    *
   4  * others. All Rights Reserved.                                                *
   5  *******************************************************************************
   6  *
   7  *******************************************************************************
   8  */
   9 #include "unicode/utypes.h"
  10
  11 #if !UCONFIG_NO_SERVICE
  12
  13 #include "unicode/resbund.h"
  14 #include "uresimp.h"
  15 #include "cmemory.h"
  16 #include "servloc.h"
  17 #include "ustrfmt.h"
  18 #include "uhash.h"
  19 #include "charstr.h"
  20 #include "uassert.h"
  21
  22 #define UNDERSCORE_CHAR ((UChar)0x005f)
  23 #define AT_SIGN_CHAR    ((UChar)64)
  24 #define PERIOD_CHAR     ((UChar)46)
  25
  26 U_NAMESPACE_BEGIN
  27
  28 LocaleKey*
  29 LocaleKey::createWithCanonicalFallback(const UnicodeString* primaryID,
  30                                        const UnicodeString* canonicalFallbackID,
  31                                        UErrorCode& status)
  32 {
  33     return LocaleKey::createWithCanonicalFallback(primaryID, canonicalFallbackID, KIND_ANY, status);
  34 }
  35
  36 LocaleKey*
  37 LocaleKey::createWithCanonicalFallback(const UnicodeString* primaryID,
  38                                        const UnicodeString* canonicalFallbackID,
  39                                        int32_t kind,
  40                                        UErrorCode& status)
  41 {
  42     if (primaryID == NULL || U_FAILURE(status)) {
  43         return NULL;
  44     }
  45     UnicodeString canonicalPrimaryID;
  46     LocaleUtility::canonicalLocaleString(primaryID, canonicalPrimaryID);
  47     return new LocaleKey(*primaryID, canonicalPrimaryID, canonicalFallbackID, kind);
  48 }
  49
  50 LocaleKey::LocaleKey(const UnicodeString& primaryID,
  51                      const UnicodeString& canonicalPrimaryID,
  52                      const UnicodeString* canonicalFallbackID,
  53                      int32_t kind)
  54   : ICUServiceKey(primaryID)
  55   , _kind(kind)
  56   , _primaryID(canonicalPrimaryID)
  57   , _fallbackID()
  58   , _currentID()
  59 {
  60     _fallbackID.setToBogus();
  61     if (_primaryID.length() != 0) {
  62         if (canonicalFallbackID != NULL && _primaryID != *canonicalFallbackID) {
  63             _fallbackID = *canonicalFallbackID;
  64         }
  65     }
  66
  67     _currentID = _primaryID;
  68 }
  69
  70 LocaleKey::~LocaleKey() {}
  71
  72 UnicodeString&
  73 LocaleKey::prefix(UnicodeString& result) const {
  74     if (_kind != KIND_ANY) {
  75         UChar buffer[64];
  76         uprv_itou(buffer, 64, _kind, 10, 0);
  77         UnicodeString temp(buffer);
  78         result.append(temp);
  79     }
  80     return result;
  81 }
  82
  83 int32_t
  84 LocaleKey::kind() const {
  85     return _kind;
  86 }
  87
  88 UnicodeString&
  89 LocaleKey::canonicalID(UnicodeString& result) const {
  90     return result.append(_primaryID);
  91 }
  92
  93 UnicodeString&
  94 LocaleKey::currentID(UnicodeString& result) const {
  95     if (!_currentID.isBogus()) {
  96         result.append(_currentID);
  97     }
  98     return result;
  99 }
 100
 101 UnicodeString&
 102 LocaleKey::currentDescriptor(UnicodeString& result) const {
 103     if (!_currentID.isBogus()) {
 104         prefix(result).append(PREFIX_DELIMITER).append(_currentID);
 105     } else {
 106         result.setToBogus();
 107     }
 108     return result;
 109 }
 110
 111 Locale&
 112 LocaleKey::canonicalLocale(Locale& result) const {
 113     return LocaleUtility::initLocaleFromName(_primaryID, result);
 114 }
 115
 116 Locale&
 117 LocaleKey::currentLocale(Locale& result) const {
 118     return LocaleUtility::initLocaleFromName(_currentID, result);
 119 }
 120
 121 UBool
 122 LocaleKey::fallback() {
 123     if (!_currentID.isBogus()) {
 124         int x = _currentID.lastIndexOf(UNDERSCORE_CHAR);
 125         if (x != -1) {
 126             _currentID.remove(x); // truncate current or fallback, whichever we're pointing to
 127             return TRUE;
 128         }
 129
 130         if (!_fallbackID.isBogus()) {
 131             _currentID = _fallbackID;
 132             _fallbackID.setToBogus();
 133             return TRUE;
 134         }
 135
 136         if (_currentID.length() > 0) {
 137             _currentID.remove(0); // completely truncate
 138             return TRUE;
 139         }
 140
 141         _currentID.setToBogus();
 142     }
 143
 144     return FALSE;
 145 }
 146
 147 UBool
 148 LocaleKey::isFallbackOf(const UnicodeString& id) const {
 149     UnicodeString temp(id);
 150     parseSuffix(temp);
 151     return temp.indexOf(_primaryID) == 0 &&
 152         (temp.length() == _primaryID.length() ||
 153         temp.charAt(_primaryID.length()) == UNDERSCORE_CHAR);
 154 }
 155
 156 #ifdef SERVICE_DEBUG
 157 UnicodeString&
 158 LocaleKey::debug(UnicodeString& result) const
 159 {
 160     ICUServiceKey::debug(result);
 161     result.append((UnicodeString)" kind: ");
 162     result.append(_kind);
 163     result.append((UnicodeString)" primaryID: ");
 164     result.append(_primaryID);
 165     result.append((UnicodeString)" fallbackID: ");
 166     result.append(_fallbackID);
 167     result.append((UnicodeString)" currentID: ");
 168     result.append(_currentID);
 169     return result;
 170 }
 171
 172 UnicodeString&
 173 LocaleKey::debugClass(UnicodeString& result) const
 174 {
 175     return result.append((UnicodeString)"LocaleKey ");
 176 }
 177 #endif
 178
 179 UOBJECT_DEFINE_RTTI_IMPLEMENTATION(LocaleKey)
 180
 181 U_NAMESPACE_END
 182
 183 /* !UCONFIG_NO_SERVICE */
 184 #endif
 185
 186