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 #define _NAMELESS "*" 30 static const char _Nameless[] = _NAMELESS; 31 32 static inline bool is_C_locale_name (const char* name) 33 { return ((name[0] == 'C') && (name[1] == 0)); } 34 35 locale* _Stl_get_classic_locale(); 36 locale* _Stl_get_global_locale(); 37 38 #if defined (_STLP_USE_MSVC6_MEM_T_BUG_WORKAROUND) || \ 39 defined (_STLP_SIGNAL_RUNTIME_COMPATIBILITY) || defined (_STLP_CHECK_RUNTIME_COMPATIBILITY) 40 # define locale _STLP_NO_MEM_T_NAME(loc) 41 #endif 42 43 locale::facet::~facet() {} 44 45 #if !defined (_STLP_MEMBER_TEMPLATES) || defined (_STLP_INLINE_MEMBER_TEMPLATES) 46 // members that fail to be templates 47 bool locale::operator()(const string& __x, 48 const string& __y) const 49 { return __locale_do_operator_call(*this, __x, __y); } 50 51 # if !defined (_STLP_NO_WCHAR_T) 52 bool locale::operator()(const wstring& __x, 53 const wstring& __y) const 54 { return __locale_do_operator_call(*this, __x, __y); } 55 # endif 56 #endif 57 58 void _STLP_CALL locale::_M_throw_on_null_name() 59 { _STLP_THROW(runtime_error("Invalid null locale name")); } 60 61 void _STLP_CALL locale::_M_throw_on_combine_error(const string& name) { 62 string what = "Unable to find facet"; 63 what += " in "; 64 what += name.empty() ? "system" : name.c_str(); 65 what += " locale"; 66 _STLP_THROW(runtime_error(what.c_str())); 67 } 68 69 void _STLP_CALL locale::_M_throw_on_creation_failure(int __err_code, 70 const char* name, const char* facet) { 71 string what; 72 switch (__err_code) { 73 case _STLP_LOC_UNSUPPORTED_FACET_CATEGORY: 74 what = "No platform localization support for "; 75 what += facet; 76 what += " facet category, unable to create facet for "; 77 what += name[0] == 0 ? "system" : name; 78 what += " locale"; 79 break; 80 case _STLP_LOC_NO_PLATFORM_SUPPORT: 81 what = "No platform localization support, unable to create "; 82 what += name[0] == 0 ? "system" : name; 83 what += " locale"; 84 break; 85 default: 86 case _STLP_LOC_UNKNOWN_NAME: 87 what = "Unable to create facet "; 88 what += facet; 89 what += " from name '"; 90 what += name; 91 what += "'"; 92 break; 93 case _STLP_LOC_NO_MEMORY: 94 _STLP_THROW_BAD_ALLOC; 95 break; 96 } 97 98 _STLP_THROW(runtime_error(what.c_str())); 99 } 100 101 // Takes a reference to a locale::id, assign a numeric index if not already 102 // affected and returns it. The returned index is always positive. 103 static const locale::id& _Stl_loc_get_index(locale::id& id) { 104 if (id._M_index == 0) { 105 #if defined (_STLP_ATOMIC_INCREMENT) && !defined (_STLP_WIN95_LIKE) 106 static _STLP_VOLATILE __stl_atomic_t _S_index = __STATIC_CAST(__stl_atomic_t, locale::id::_S_max); 107 id._M_index = _STLP_ATOMIC_INCREMENT(&_S_index); 108 #else 109 static _STLP_STATIC_MUTEX _Index_lock _STLP_MUTEX_INITIALIZER; 110 _STLP_auto_lock sentry(_Index_lock); 111 size_t new_index = locale::id::_S_max++; 112 id._M_index = new_index; 113 #endif 114 } 115 return id; 116 } 117 118 // Default constructor: create a copy of the global locale. 119 locale::locale() _STLP_NOTHROW 120 : _M_impl(_get_Locale_impl(_Stl_get_global_locale()->_M_impl)) 121 {} 122 123 // Copy constructor 124 locale::locale(const locale& L) _STLP_NOTHROW 125 : _M_impl( _get_Locale_impl( L._M_impl ) ) 126 {} 127 128 void locale::_M_insert(facet* f, locale::id& n) { 129 if (f) 130 _M_impl->insert(f, _Stl_loc_get_index(n)); 131 } 132 133 locale::locale( _Locale_impl* impl ) : 134 _M_impl( _get_Locale_impl( impl ) ) 135 {} 136 137 // Create a locale from a name. 138 locale::locale(const char* name) 139 : _M_impl(0) { 140 if (!name) 141 _M_throw_on_null_name(); 142 143 if (is_C_locale_name(name)) { 144 _M_impl = _get_Locale_impl( locale::classic()._M_impl ); 145 return; 146 } 147 148 _Locale_impl* impl = 0; 149 _STLP_TRY { 150 impl = new _Locale_impl(locale::id::_S_max, name); 151 152 // Insert categories one at a time. 153 _Locale_name_hint *hint = 0; 154 const char* ctype_name = name; 155 char ctype_buf[_Locale_MAX_SIMPLE_NAME]; 156 const char* numeric_name = name; 157 char numeric_buf[_Locale_MAX_SIMPLE_NAME]; 158 const char* time_name = name; 159 char time_buf[_Locale_MAX_SIMPLE_NAME]; 160 const char* collate_name = name; 161 char collate_buf[_Locale_MAX_SIMPLE_NAME]; 162 const char* monetary_name = name; 163 char monetary_buf[_Locale_MAX_SIMPLE_NAME]; 164 const char* messages_name = name; 165 char messages_buf[_Locale_MAX_SIMPLE_NAME]; 166 hint = impl->insert_ctype_facets(ctype_name, ctype_buf, hint); 167 hint = impl->insert_numeric_facets(numeric_name, numeric_buf, hint); 168 hint = impl->insert_time_facets(time_name, time_buf, hint); 169 hint = impl->insert_collate_facets(collate_name, collate_buf, hint); 170 hint = impl->insert_monetary_facets(monetary_name, monetary_buf, hint); 171 impl->insert_messages_facets(messages_name, messages_buf, hint); 172 173 // Try to use a normalize locale name in order to have the == operator 174 // to behave correctly: 175 if (strcmp(ctype_name, numeric_name) == 0 && 176 strcmp(ctype_name, time_name) == 0 && 177 strcmp(ctype_name, collate_name) == 0 && 178 strcmp(ctype_name, monetary_name) == 0 && 179 strcmp(ctype_name, messages_name) == 0) { 180 impl->name = ctype_name; 181 } 182 // else we keep current name. 183 184 // reassign impl 185 _M_impl = _get_Locale_impl( impl ); 186 } 187 _STLP_UNWIND(delete impl); 188 } 189 190 static void _Stl_loc_combine_names_aux(_Locale_impl* L, 191 const char* name, 192 const char* ctype_name, const char* time_name, const char* numeric_name, 193 const char* collate_name, const char* monetary_name, const char* messages_name, 194 locale::category c) { 195 // This function is only called when names has been validated so using _Locale_extract_*_name 196 // can't fail. 197 int __err_code; 198 char buf[_Locale_MAX_SIMPLE_NAME]; 199 L->name = string("LC_CTYPE=") + _Locale_extract_ctype_name((c & locale::ctype) ? ctype_name : name, buf, 0, &__err_code) + ";"; 200 L->name += string("LC_TIME=") + _Locale_extract_time_name((c & locale::time) ? time_name : name, buf, 0, &__err_code) + ";"; 201 L->name += string("LC_NUMERIC=") + _Locale_extract_numeric_name((c & locale::numeric) ? numeric_name : name, buf, 0, &__err_code) + ";"; 202 L->name += string("LC_COLLATE=") + _Locale_extract_collate_name((c & locale::collate) ? collate_name : name, buf, 0, &__err_code) + ";"; 203 L->name += string("LC_MONETARY=") + _Locale_extract_monetary_name((c & locale::monetary) ? monetary_name : name, buf, 0, &__err_code) + ";"; 204 L->name += string("LC_MESSAGES=") + _Locale_extract_messages_name((c & locale::messages) ? messages_name : name, buf, 0, &__err_code); 205 } 206 207 // Give L a name where all facets except those in category c 208 // are taken from name1, and those in category c are taken from name2. 209 static void _Stl_loc_combine_names(_Locale_impl* L, 210 const char* name1, const char* name2, 211 locale::category c) { 212 if ((c & locale::all) == 0 || strcmp(name1, name1) == 0) 213 L->name = name1; 214 else if ((c & locale::all) == locale::all) 215 L->name = name2; 216 else { 217 _Stl_loc_combine_names_aux(L, name1, name2, name2, name2, name2, name2, name2, c); 218 } 219 } 220 221 static void _Stl_loc_combine_names(_Locale_impl* L, 222 const char* name, 223 const char* ctype_name, const char* time_name, const char* numeric_name, 224 const char* collate_name, const char* monetary_name, const char* messages_name, 225 locale::category c) { 226 if ((c & locale::all) == 0 || (strcmp(name, ctype_name) == 0 && 227 strcmp(name, time_name) == 0 && 228 strcmp(name, numeric_name) == 0 && 229 strcmp(name, collate_name) == 0 && 230 strcmp(name, monetary_name) == 0 && 231 strcmp(name, messages_name) == 0)) 232 L->name = name; 233 else if ((c & locale::all) == locale::all && strcmp(ctype_name, time_name) == 0 && 234 strcmp(ctype_name, numeric_name) == 0 && 235 strcmp(ctype_name, collate_name) == 0 && 236 strcmp(ctype_name, monetary_name) == 0 && 237 strcmp(ctype_name, messages_name) == 0) 238 L->name = ctype_name; 239 else { 240 _Stl_loc_combine_names_aux(L, name, ctype_name, time_name, numeric_name, collate_name, monetary_name, messages_name, c); 241 } 242 } 243 244 245 // Create a locale that's a copy of L, except that all of the facets 246 // in category c are instead constructed by name. 247 locale::locale(const locale& L, const char* name, locale::category c) 248 : _M_impl(0) { 249 if (!name) 250 _M_throw_on_null_name(); 251 252 if (!::strcmp(_Nameless, name)) 253 _STLP_THROW(runtime_error("Invalid locale name '" _NAMELESS "'")); 254 255 _Locale_impl* impl = 0; 256 257 _STLP_TRY { 258 impl = new _Locale_impl(*L._M_impl); 259 260 _Locale_name_hint *hint = 0; 261 const char* ctype_name = name; 262 char ctype_buf[_Locale_MAX_SIMPLE_NAME]; 263 const char* numeric_name = name; 264 char numeric_buf[_Locale_MAX_SIMPLE_NAME]; 265 const char* time_name = name; 266 char time_buf[_Locale_MAX_SIMPLE_NAME]; 267 const char* collate_name = name; 268 char collate_buf[_Locale_MAX_SIMPLE_NAME]; 269 const char* monetary_name = name; 270 char monetary_buf[_Locale_MAX_SIMPLE_NAME]; 271 const char* messages_name = name; 272 char messages_buf[_Locale_MAX_SIMPLE_NAME]; 273 if (c & locale::ctype) 274 hint = impl->insert_ctype_facets(ctype_name, ctype_buf, hint); 275 if (c & locale::numeric) 276 hint = impl->insert_numeric_facets(numeric_name, numeric_buf, hint); 277 if (c & locale::time) 278 hint = impl->insert_time_facets(time_name, time_buf, hint); 279 if (c & locale::collate) 280 hint = impl->insert_collate_facets(collate_name, collate_buf, hint); 281 if (c & locale::monetary) 282 hint = impl->insert_monetary_facets(monetary_name, monetary_buf,hint); 283 if (c & locale::messages) 284 impl->insert_messages_facets(messages_name, messages_buf, hint); 285 286 _Stl_loc_combine_names(impl, L._M_impl->name.c_str(), 287 ctype_name, time_name, numeric_name, 288 collate_name, monetary_name, messages_name, c); 289 _M_impl = _get_Locale_impl( impl ); 290 } 291 _STLP_UNWIND(delete impl) 292 } 293 294 // Contruct a new locale where all facets that aren't in category c 295 // come from L1, and all those that are in category c come from L2. 296 locale::locale(const locale& L1, const locale& L2, category c) 297 : _M_impl(0) { 298 _Locale_impl* impl = new _Locale_impl(*L1._M_impl); 299 300 _Locale_impl* i2 = L2._M_impl; 301 302 if (L1.name() != _Nameless && L2.name() != _Nameless) 303 _Stl_loc_combine_names(impl, L1._M_impl->name.c_str(), L2._M_impl->name.c_str(), c); 304 else { 305 impl->name = _Nameless; 306 } 307 308 if (c & collate) { 309 impl->insert( i2, _STLP_STD::collate<char>::id); 310 # ifndef _STLP_NO_WCHAR_T 311 impl->insert( i2, _STLP_STD::collate<wchar_t>::id); 312 # endif 313 } 314 if (c & ctype) { 315 impl->insert( i2, _STLP_STD::ctype<char>::id); 316 impl->insert( i2, _STLP_STD::codecvt<char, char, mbstate_t>::id); 317 # ifndef _STLP_NO_WCHAR_T 318 impl->insert( i2, _STLP_STD::ctype<wchar_t>::id); 319 impl->insert( i2, _STLP_STD::codecvt<wchar_t, char, mbstate_t>::id); 320 # endif 321 } 322 if (c & monetary) { 323 impl->insert( i2, _STLP_STD::moneypunct<char, true>::id); 324 impl->insert( i2, _STLP_STD::moneypunct<char, false>::id); 325 impl->insert( i2, _STLP_STD::money_get<char, istreambuf_iterator<char, char_traits<char> > >::id); 326 impl->insert( i2, _STLP_STD::money_put<char, ostreambuf_iterator<char, char_traits<char> > >::id); 327 # ifndef _STLP_NO_WCHAR_T 328 impl->insert( i2, _STLP_STD::moneypunct<wchar_t, true>::id); 329 impl->insert( i2, _STLP_STD::moneypunct<wchar_t, false>::id); 330 impl->insert( i2, _STLP_STD::money_get<wchar_t, istreambuf_iterator<wchar_t, char_traits<wchar_t> > >::id); 331 impl->insert( i2, _STLP_STD::money_put<wchar_t, ostreambuf_iterator<wchar_t, char_traits<wchar_t> > >::id); 332 # endif 333 } 334 if (c & numeric) { 335 impl->insert( i2, _STLP_STD::numpunct<char>::id); 336 impl->insert( i2, _STLP_STD::num_get<char, istreambuf_iterator<char, char_traits<char> > >::id); 337 impl->insert( i2, _STLP_STD::num_put<char, ostreambuf_iterator<char, char_traits<char> > >::id); 338 # ifndef _STLP_NO_WCHAR_T 339 impl->insert( i2, _STLP_STD::numpunct<wchar_t>::id); 340 impl->insert( i2, _STLP_STD::num_get<wchar_t, istreambuf_iterator<wchar_t, char_traits<wchar_t> > >::id); 341 impl->insert( i2, _STLP_STD::num_put<wchar_t, ostreambuf_iterator<wchar_t, char_traits<wchar_t> > >::id); 342 # endif 343 } 344 if (c & time) { 345 impl->insert( i2, _STLP_STD::time_get<char, istreambuf_iterator<char, char_traits<char> > >::id); 346 impl->insert( i2, _STLP_STD::time_put<char, ostreambuf_iterator<char, char_traits<char> > >::id); 347 # ifndef _STLP_NO_WCHAR_T 348 impl->insert( i2, _STLP_STD::time_get<wchar_t, istreambuf_iterator<wchar_t, char_traits<wchar_t> > >::id); 349 impl->insert( i2, _STLP_STD::time_put<wchar_t, ostreambuf_iterator<wchar_t, char_traits<wchar_t> > >::id); 350 # endif 351 } 352 if (c & messages) { 353 impl->insert( i2, _STLP_STD::messages<char>::id); 354 # ifndef _STLP_NO_WCHAR_T 355 impl->insert( i2, _STLP_STD::messages<wchar_t>::id); 356 # endif 357 } 358 _M_impl = _get_Locale_impl( impl ); 359 } 360 361 // Destructor. 362 locale::~locale() _STLP_NOTHROW { 363 if (_M_impl) 364 _release_Locale_impl(_M_impl); 365 } 366 367 // Assignment operator. Much like the copy constructor: just a bit of 368 // pointer twiddling. 369 const locale& locale::operator=(const locale& L) _STLP_NOTHROW { 370 if (this->_M_impl != L._M_impl) { 371 if (this->_M_impl) 372 _release_Locale_impl(this->_M_impl); 373 this->_M_impl = _get_Locale_impl(L._M_impl); 374 } 375 return *this; 376 } 377 378 locale::facet* locale::_M_get_facet(const locale::id& n) const { 379 return n._M_index < _M_impl->size() ? _M_impl->facets_vec[n._M_index] : 0; 380 } 381 382 locale::facet* locale::_M_use_facet(const locale::id& n) const { 383 locale::facet* f = (n._M_index < _M_impl->size() ? _M_impl->facets_vec[n._M_index] : 0); 384 if (!f) 385 _M_impl->_M_throw_bad_cast(); 386 return f; 387 } 388 389 string locale::name() const { 390 return _M_impl->name; 391 } 392 393 // Compare two locales for equality. 394 bool locale::operator==(const locale& L) const { 395 return this->_M_impl == L._M_impl || 396 (this->name() == L.name() && this->name() != _Nameless); 397 } 398 399 bool locale::operator!=(const locale& L) const { 400 return !(*this == L); 401 } 402 403 // static data members. 404 405 const locale& _STLP_CALL locale::classic() { 406 return *_Stl_get_classic_locale(); 407 } 408 409 #if !defined (_STLP_USE_MSVC6_MEM_T_BUG_WORKAROUND) 410 locale _STLP_CALL locale::global(const locale& L) { 411 #else 412 _Locale_impl* _STLP_CALL locale::global(const locale& L) { 413 #endif 414 locale old(_Stl_get_global_locale()->_M_impl); 415 if (_Stl_get_global_locale()->_M_impl != L._M_impl) { 416 _release_Locale_impl(_Stl_get_global_locale()->_M_impl); 417 // this assign should be atomic, should be fixed here: 418 _Stl_get_global_locale()->_M_impl = _get_Locale_impl(L._M_impl); 419 420 // Set the global C locale, if appropriate. 421 #if !defined(_STLP_NO_LOCALE_SUPPORT) 422 if (L.name() != _Nameless) 423 setlocale(LC_ALL, L.name().c_str()); 424 #endif 425 } 426 427 #if !defined (_STLP_USE_MSVC6_MEM_T_BUG_WORKAROUND) 428 return old; 429 #else 430 return old._M_impl; 431 #endif 432 } 433 434 #if !defined (_STLP_STATIC_CONST_INIT_BUG) && !defined (_STLP_NO_STATIC_CONST_DEFINITION) 435 const locale::category locale::none; 436 const locale::category locale::collate; 437 const locale::category locale::ctype; 438 const locale::category locale::monetary; 439 const locale::category locale::numeric; 440 const locale::category locale::time; 441 const locale::category locale::messages; 442 const locale::category locale::all; 443 #endif 444 445 _STLP_END_NAMESPACE 446 447
