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
is_C_locale_name(const char * name)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
~facet()42 locale::facet::~facet() {}
43
44 #if !defined (_STLP_MEMBER_TEMPLATES) || defined (_STLP_INLINE_MEMBER_TEMPLATES)
45 // members that fail to be templates
operator ()(const string & __x,const string & __y) const46 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)
operator ()(const wstring & __x,const wstring & __y) const51 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
_M_throw_on_null_name()57 void _STLP_CALL locale::_M_throw_on_null_name()
58 { _STLP_THROW(runtime_error("Invalid null locale name")); }
59
_M_throw_on_combine_error(const string & name)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
_M_throw_on_creation_failure(int __err_code,const char * name,const char * facet)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.
_Stl_loc_get_index(locale::id & id)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.
locale()118 locale::locale() _STLP_NOTHROW
119 : _M_impl(_get_Locale_impl(_Stl_get_global_locale()->_M_impl))
120 {}
121
122 // Copy constructor
locale(const locale & L)123 locale::locale(const locale& L) _STLP_NOTHROW
124 : _M_impl( _get_Locale_impl( L._M_impl ) )
125 {}
126
_M_insert(facet * f,locale::id & n)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
locale(_Locale_impl * impl)132 locale::locale( _Locale_impl* impl ) :
133 _M_impl( _get_Locale_impl( impl ) )
134 {}
135
136 // Create a locale from a name.
locale(const char * 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
_Stl_loc_combine_names_aux(_Locale_impl * L,const char * name,const char * ctype_name,const char * time_name,const char * numeric_name,const char * collate_name,const char * monetary_name,const char * messages_name,locale::category c)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.
_Stl_loc_combine_names(_Locale_impl * L,const char * name1,const char * name2,locale::category c)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
_Stl_loc_combine_names(_Locale_impl * L,const char * name,const char * ctype_name,const char * time_name,const char * numeric_name,const char * collate_name,const char * monetary_name,const char * messages_name,locale::category c)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.
locale(const locale & L,const char * name,locale::category c)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.
locale(const locale & L1,const locale & L2,category c)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.
~locale()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.
operator =(const locale & L)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
_M_get_facet(const locale::id & n) const377 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
_M_use_facet(const locale::id & n) const381 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
name() const388 string locale::name() const {
389 return _M_impl->name;
390 }
391
392 // Compare two locales for equality.
operator ==(const locale & L) const393 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
operator !=(const locale & L) const398 bool locale::operator!=(const locale& L) const {
399 return !(*this == L);
400 }
401
402 // static data members.
403
classic()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)
global(const locale & L)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