1 /* 2 * Copyright (c) 1999 3 * Silicon Graphics Computer Systems, Inc. 4 * 5 * Copyright (c) 1999 6 * Boris Fomitchev 7 * 8 * This material is provided "as is", with absolutely no warranty expressed 9 * or implied. Any use is at your own risk. 10 * 11 * Permission to use or copy this software for any purpose is hereby granted 12 * without fee, provided the above notices are retained on all copies. 13 * Permission to modify the code and to distribute modified code is granted, 14 * provided the above notices are retained, and a notice that the code was 15 * modified is included with the above copyright notice. 16 * 17 */ 18 19 #include "stlport_prefix.h" 20 21 #include <locale> 22 #include <stdexcept> 23 24 #include "c_locale.h" 25 #include "locale_impl.h" 26 27 _STLP_BEGIN_NAMESPACE 28 29 static const string _Nameless("*"); 30 31 static inline bool is_C_locale_name (const char* name) 32 { return ((name[0] == 'C') && (name[1] == 0)); } 33 34 locale* _Stl_get_classic_locale(); 35 locale* _Stl_get_global_locale(); 36 37 #if defined (_STLP_USE_MSVC6_MEM_T_BUG_WORKAROUND) || \ 38 defined (_STLP_SIGNAL_RUNTIME_COMPATIBILITY) || defined (_STLP_CHECK_RUNTIME_COMPATIBILITY) 39 # define locale _STLP_NO_MEM_T_NAME(loc) 40 #endif 41 42 locale::facet::~facet() {} 43 44 #if !defined (_STLP_MEMBER_TEMPLATES) || defined (_STLP_INLINE_MEMBER_TEMPLATES) 45 // members that fail to be templates 46 bool locale::operator()(const string& __x, 47 const string& __y) const 48 { return __locale_do_operator_call(*this, __x, __y); } 49 50 # if !defined (_STLP_NO_WCHAR_T) 51 bool locale::operator()(const wstring& __x, 52 const wstring& __y) const 53 { return __locale_do_operator_call(*this, __x, __y); } 54 # endif 55 #endif 56 57 void _STLP_CALL locale::_M_throw_on_null_name() 58 { _STLP_THROW(runtime_error("Invalid null locale name")); } 59 60 void _STLP_CALL locale::_M_throw_on_combine_error(const string& name) { 61 string what = "Unable to find facet"; 62 what += " in "; 63 what += name.empty() ? "system" : name.c_str(); 64 what += " locale"; 65 _STLP_THROW(runtime_error(what.c_str())); 66 } 67 68 void _STLP_CALL locale::_M_throw_on_creation_failure(int __err_code, 69 const char* name, const char* facet) { 70 string what; 71 switch (__err_code) { 72 case _STLP_LOC_UNSUPPORTED_FACET_CATEGORY: 73 what = "No platform localization support for "; 74 what += facet; 75 what += " facet category, unable to create facet for "; 76 what += name[0] == 0 ? "system" : name; 77 what += " locale"; 78 break; 79 case _STLP_LOC_NO_PLATFORM_SUPPORT: 80 what = "No platform localization support, unable to create "; 81 what += name[0] == 0 ? "system" : name; 82 what += " locale"; 83 break; 84 default: 85 case _STLP_LOC_UNKNOWN_NAME: 86 what = "Unable to create facet "; 87 what += facet; 88 what += " from name '"; 89 what += name; 90 what += "'"; 91 break; 92 case _STLP_LOC_NO_MEMORY: 93 _STLP_THROW_BAD_ALLOC; 94 break; 95 } 96 97 _STLP_THROW(runtime_error(what.c_str())); 98 } 99 100 // Takes a reference to a locale::id, assign a numeric index if not already 101 // affected and returns it. The returned index is always positive. 102 static const locale::id& _Stl_loc_get_index(locale::id& id) { 103 if (id._M_index == 0) { 104 #if defined (_STLP_ATOMIC_INCREMENT) && !defined (_STLP_WIN95_LIKE) 105 static _STLP_VOLATILE __stl_atomic_t _S_index = __STATIC_CAST(__stl_atomic_t, locale::id::_S_max); 106 id._M_index = _STLP_ATOMIC_INCREMENT(&_S_index); 107 #else 108 static _STLP_STATIC_MUTEX _Index_lock _STLP_MUTEX_INITIALIZER; 109 _STLP_auto_lock sentry(_Index_lock); 110 size_t new_index = locale::id::_S_max++; 111 id._M_index = new_index; 112 #endif 113 } 114 return id; 115 } 116 117 // Default constructor: create a copy of the global locale. 118 locale::locale() _STLP_NOTHROW 119 : _M_impl(_get_Locale_impl(_Stl_get_global_locale()->_M_impl)) 120 {} 121 122 // Copy constructor 123 locale::locale(const locale& L) _STLP_NOTHROW 124 : _M_impl( _get_Locale_impl( L._M_impl ) ) 125 {} 126 127 void locale::_M_insert(facet* f, locale::id& n) { 128 if (f) 129 _M_impl->insert(f, _Stl_loc_get_index(n)); 130 } 131 132 locale::locale( _Locale_impl* impl ) : 133 _M_impl( _get_Locale_impl( impl ) ) 134 {} 135 136 // Create a locale from a name. 137 locale::locale(const char* name) 138 : _M_impl(0) { 139 if (!name) 140 _M_throw_on_null_name(); 141 142 if (is_C_locale_name(name)) { 143 _M_impl = _get_Locale_impl( locale::classic()._M_impl ); 144 return; 145 } 146 147 _Locale_impl* impl = 0; 148 _STLP_TRY { 149 impl = new _Locale_impl(locale::id::_S_max, name); 150 151 // Insert categories one at a time. 152 _Locale_name_hint *hint = 0; 153 const char* ctype_name = name; 154 char ctype_buf[_Locale_MAX_SIMPLE_NAME]; 155 const char* numeric_name = name; 156 char numeric_buf[_Locale_MAX_SIMPLE_NAME]; 157 const char* time_name = name; 158 char time_buf[_Locale_MAX_SIMPLE_NAME]; 159 const char* collate_name = name; 160 char collate_buf[_Locale_MAX_SIMPLE_NAME]; 161 const char* monetary_name = name; 162 char monetary_buf[_Locale_MAX_SIMPLE_NAME]; 163 const char* messages_name = name; 164 char messages_buf[_Locale_MAX_SIMPLE_NAME]; 165 hint = impl->insert_ctype_facets(ctype_name, ctype_buf, hint); 166 hint = impl->insert_numeric_facets(numeric_name, numeric_buf, hint); 167 hint = impl->insert_time_facets(time_name, time_buf, hint); 168 hint = impl->insert_collate_facets(collate_name, collate_buf, hint); 169 hint = impl->insert_monetary_facets(monetary_name, monetary_buf, hint); 170 impl->insert_messages_facets(messages_name, messages_buf, hint); 171 172 // Try to use a normalize locale name in order to have the == operator 173 // to behave correctly: 174 if (strcmp(ctype_name, numeric_name) == 0 && 175 strcmp(ctype_name, time_name) == 0 && 176 strcmp(ctype_name, collate_name) == 0 && 177 strcmp(ctype_name, monetary_name) == 0 && 178 strcmp(ctype_name, messages_name) == 0) { 179 impl->name = ctype_name; 180 } 181 // else we keep current name. 182 183 // reassign impl 184 _M_impl = _get_Locale_impl( impl ); 185 } 186 _STLP_UNWIND(delete impl); 187 } 188 189 static void _Stl_loc_combine_names_aux(_Locale_impl* L, 190 const char* name, 191 const char* ctype_name, const char* time_name, const char* numeric_name, 192 const char* collate_name, const char* monetary_name, const char* messages_name, 193 locale::category c) { 194 // This function is only called when names has been validated so using _Locale_extract_*_name 195 // can't fail. 196 int __err_code; 197 char buf[_Locale_MAX_SIMPLE_NAME]; 198 L->name = string("LC_CTYPE=") + _Locale_extract_ctype_name((c & locale::ctype) ? ctype_name : name, buf, 0, &__err_code) + ";"; 199 L->name += string("LC_TIME=") + _Locale_extract_time_name((c & locale::time) ? time_name : name, buf, 0, &__err_code) + ";"; 200 L->name += string("LC_NUMERIC=") + _Locale_extract_numeric_name((c & locale::numeric) ? numeric_name : name, buf, 0, &__err_code) + ";"; 201 L->name += string("LC_COLLATE=") + _Locale_extract_collate_name((c & locale::collate) ? collate_name : name, buf, 0, &__err_code) + ";"; 202 L->name += string("LC_MONETARY=") + _Locale_extract_monetary_name((c & locale::monetary) ? monetary_name : name, buf, 0, &__err_code) + ";"; 203 L->name += string("LC_MESSAGES=") + _Locale_extract_messages_name((c & locale::messages) ? messages_name : name, buf, 0, &__err_code); 204 } 205 206 // Give L a name where all facets except those in category c 207 // are taken from name1, and those in category c are taken from name2. 208 static void _Stl_loc_combine_names(_Locale_impl* L, 209 const char* name1, const char* name2, 210 locale::category c) { 211 if ((c & locale::all) == 0 || strcmp(name1, name1) == 0) 212 L->name = name1; 213 else if ((c & locale::all) == locale::all) 214 L->name = name2; 215 else { 216 _Stl_loc_combine_names_aux(L, name1, name2, name2, name2, name2, name2, name2, c); 217 } 218 } 219 220 static void _Stl_loc_combine_names(_Locale_impl* L, 221 const char* name, 222 const char* ctype_name, const char* time_name, const char* numeric_name, 223 const char* collate_name, const char* monetary_name, const char* messages_name, 224 locale::category c) { 225 if ((c & locale::all) == 0 || (strcmp(name, ctype_name) == 0 && 226 strcmp(name, time_name) == 0 && 227 strcmp(name, numeric_name) == 0 && 228 strcmp(name, collate_name) == 0 && 229 strcmp(name, monetary_name) == 0 && 230 strcmp(name, messages_name) == 0)) 231 L->name = name; 232 else if ((c & locale::all) == locale::all && strcmp(ctype_name, time_name) == 0 && 233 strcmp(ctype_name, numeric_name) == 0 && 234 strcmp(ctype_name, collate_name) == 0 && 235 strcmp(ctype_name, monetary_name) == 0 && 236 strcmp(ctype_name, messages_name) == 0) 237 L->name = ctype_name; 238 else { 239 _Stl_loc_combine_names_aux(L, name, ctype_name, time_name, numeric_name, collate_name, monetary_name, messages_name, c); 240 } 241 } 242 243 244 // Create a locale that's a copy of L, except that all of the facets 245 // in category c are instead constructed by name. 246 locale::locale(const locale& L, const char* name, locale::category c) 247 : _M_impl(0) { 248 if (!name) 249 _M_throw_on_null_name(); 250 251 if (_Nameless == name) 252 _STLP_THROW(runtime_error((string("Invalid locale name '") + _Nameless + "'").c_str())); 253 254 _Locale_impl* impl = 0; 255 256 _STLP_TRY { 257 impl = new _Locale_impl(*L._M_impl); 258 259 _Locale_name_hint *hint = 0; 260 const char* ctype_name = name; 261 char ctype_buf[_Locale_MAX_SIMPLE_NAME]; 262 const char* numeric_name = name; 263 char numeric_buf[_Locale_MAX_SIMPLE_NAME]; 264 const char* time_name = name; 265 char time_buf[_Locale_MAX_SIMPLE_NAME]; 266 const char* collate_name = name; 267 char collate_buf[_Locale_MAX_SIMPLE_NAME]; 268 const char* monetary_name = name; 269 char monetary_buf[_Locale_MAX_SIMPLE_NAME]; 270 const char* messages_name = name; 271 char messages_buf[_Locale_MAX_SIMPLE_NAME]; 272 if (c & locale::ctype) 273 hint = impl->insert_ctype_facets(ctype_name, ctype_buf, hint); 274 if (c & locale::numeric) 275 hint = impl->insert_numeric_facets(numeric_name, numeric_buf, hint); 276 if (c & locale::time) 277 hint = impl->insert_time_facets(time_name, time_buf, hint); 278 if (c & locale::collate) 279 hint = impl->insert_collate_facets(collate_name, collate_buf, hint); 280 if (c & locale::monetary) 281 hint = impl->insert_monetary_facets(monetary_name, monetary_buf,hint); 282 if (c & locale::messages) 283 impl->insert_messages_facets(messages_name, messages_buf, hint); 284 285 _Stl_loc_combine_names(impl, L._M_impl->name.c_str(), 286 ctype_name, time_name, numeric_name, 287 collate_name, monetary_name, messages_name, c); 288 _M_impl = _get_Locale_impl( impl ); 289 } 290 _STLP_UNWIND(delete impl) 291 } 292 293 // Contruct a new locale where all facets that aren't in category c 294 // come from L1, and all those that are in category c come from L2. 295 locale::locale(const locale& L1, const locale& L2, category c) 296 : _M_impl(0) { 297 _Locale_impl* impl = new _Locale_impl(*L1._M_impl); 298 299 _Locale_impl* i2 = L2._M_impl; 300 301 if (L1.name() != _Nameless && L2.name() != _Nameless) 302 _Stl_loc_combine_names(impl, L1._M_impl->name.c_str(), L2._M_impl->name.c_str(), c); 303 else { 304 impl->name = _Nameless; 305 } 306 307 if (c & collate) { 308 impl->insert( i2, _STLP_STD::collate<char>::id); 309 # ifndef _STLP_NO_WCHAR_T 310 impl->insert( i2, _STLP_STD::collate<wchar_t>::id); 311 # endif 312 } 313 if (c & ctype) { 314 impl->insert( i2, _STLP_STD::ctype<char>::id); 315 impl->insert( i2, _STLP_STD::codecvt<char, char, mbstate_t>::id); 316 # ifndef _STLP_NO_WCHAR_T 317 impl->insert( i2, _STLP_STD::ctype<wchar_t>::id); 318 impl->insert( i2, _STLP_STD::codecvt<wchar_t, char, mbstate_t>::id); 319 # endif 320 } 321 if (c & monetary) { 322 impl->insert( i2, _STLP_STD::moneypunct<char, true>::id); 323 impl->insert( i2, _STLP_STD::moneypunct<char, false>::id); 324 impl->insert( i2, _STLP_STD::money_get<char, istreambuf_iterator<char, char_traits<char> > >::id); 325 impl->insert( i2, _STLP_STD::money_put<char, ostreambuf_iterator<char, char_traits<char> > >::id); 326 # ifndef _STLP_NO_WCHAR_T 327 impl->insert( i2, _STLP_STD::moneypunct<wchar_t, true>::id); 328 impl->insert( i2, _STLP_STD::moneypunct<wchar_t, false>::id); 329 impl->insert( i2, _STLP_STD::money_get<wchar_t, istreambuf_iterator<wchar_t, char_traits<wchar_t> > >::id); 330 impl->insert( i2, _STLP_STD::money_put<wchar_t, ostreambuf_iterator<wchar_t, char_traits<wchar_t> > >::id); 331 # endif 332 } 333 if (c & numeric) { 334 impl->insert( i2, _STLP_STD::numpunct<char>::id); 335 impl->insert( i2, _STLP_STD::num_get<char, istreambuf_iterator<char, char_traits<char> > >::id); 336 impl->insert( i2, _STLP_STD::num_put<char, ostreambuf_iterator<char, char_traits<char> > >::id); 337 # ifndef _STLP_NO_WCHAR_T 338 impl->insert( i2, _STLP_STD::numpunct<wchar_t>::id); 339 impl->insert( i2, _STLP_STD::num_get<wchar_t, istreambuf_iterator<wchar_t, char_traits<wchar_t> > >::id); 340 impl->insert( i2, _STLP_STD::num_put<wchar_t, ostreambuf_iterator<wchar_t, char_traits<wchar_t> > >::id); 341 # endif 342 } 343 if (c & time) { 344 impl->insert( i2, _STLP_STD::time_get<char, istreambuf_iterator<char, char_traits<char> > >::id); 345 impl->insert( i2, _STLP_STD::time_put<char, ostreambuf_iterator<char, char_traits<char> > >::id); 346 # ifndef _STLP_NO_WCHAR_T 347 impl->insert( i2, _STLP_STD::time_get<wchar_t, istreambuf_iterator<wchar_t, char_traits<wchar_t> > >::id); 348 impl->insert( i2, _STLP_STD::time_put<wchar_t, ostreambuf_iterator<wchar_t, char_traits<wchar_t> > >::id); 349 # endif 350 } 351 if (c & messages) { 352 impl->insert( i2, _STLP_STD::messages<char>::id); 353 # ifndef _STLP_NO_WCHAR_T 354 impl->insert( i2, _STLP_STD::messages<wchar_t>::id); 355 # endif 356 } 357 _M_impl = _get_Locale_impl( impl ); 358 } 359 360 // Destructor. 361 locale::~locale() _STLP_NOTHROW { 362 if (_M_impl) 363 _release_Locale_impl(_M_impl); 364 } 365 366 // Assignment operator. Much like the copy constructor: just a bit of 367 // pointer twiddling. 368 const locale& locale::operator=(const locale& L) _STLP_NOTHROW { 369 if (this->_M_impl != L._M_impl) { 370 if (this->_M_impl) 371 _release_Locale_impl(this->_M_impl); 372 this->_M_impl = _get_Locale_impl(L._M_impl); 373 } 374 return *this; 375 } 376 377 locale::facet* locale::_M_get_facet(const locale::id& n) const { 378 return n._M_index < _M_impl->size() ? _M_impl->facets_vec[n._M_index] : 0; 379 } 380 381 locale::facet* locale::_M_use_facet(const locale::id& n) const { 382 locale::facet* f = (n._M_index < _M_impl->size() ? _M_impl->facets_vec[n._M_index] : 0); 383 if (!f) 384 _M_impl->_M_throw_bad_cast(); 385 return f; 386 } 387 388 string locale::name() const { 389 return _M_impl->name; 390 } 391 392 // Compare two locales for equality. 393 bool locale::operator==(const locale& L) const { 394 return this->_M_impl == L._M_impl || 395 (this->name() == L.name() && this->name() != _Nameless); 396 } 397 398 bool locale::operator!=(const locale& L) const { 399 return !(*this == L); 400 } 401 402 // static data members. 403 404 const locale& _STLP_CALL locale::classic() { 405 return *_Stl_get_classic_locale(); 406 } 407 408 #if !defined (_STLP_USE_MSVC6_MEM_T_BUG_WORKAROUND) 409 locale _STLP_CALL locale::global(const locale& L) { 410 #else 411 _Locale_impl* _STLP_CALL locale::global(const locale& L) { 412 #endif 413 locale old(_Stl_get_global_locale()->_M_impl); 414 if (_Stl_get_global_locale()->_M_impl != L._M_impl) { 415 _release_Locale_impl(_Stl_get_global_locale()->_M_impl); 416 // this assign should be atomic, should be fixed here: 417 _Stl_get_global_locale()->_M_impl = _get_Locale_impl(L._M_impl); 418 419 // Set the global C locale, if appropriate. 420 #if !defined(_STLP_NO_LOCALE_SUPPORT) 421 if (L.name() != _Nameless) 422 setlocale(LC_ALL, L.name().c_str()); 423 #endif 424 } 425 426 #if !defined (_STLP_USE_MSVC6_MEM_T_BUG_WORKAROUND) 427 return old; 428 #else 429 return old._M_impl; 430 #endif 431 } 432 433 #if !defined (_STLP_STATIC_CONST_INIT_BUG) && !defined (_STLP_NO_STATIC_CONST_DEFINITION) 434 const locale::category locale::none; 435 const locale::category locale::collate; 436 const locale::category locale::ctype; 437 const locale::category locale::monetary; 438 const locale::category locale::numeric; 439 const locale::category locale::time; 440 const locale::category locale::messages; 441 const locale::category locale::all; 442 #endif 443 444 _STLP_END_NAMESPACE 445 446
