michael@0: /*
michael@0:  * Copyright (c) 1999
michael@0:  * Silicon Graphics Computer Systems, Inc.
michael@0:  *
michael@0:  * Copyright (c) 1999
michael@0:  * Boris Fomitchev
michael@0:  *
michael@0:  * This material is provided "as is", with absolutely no warranty expressed
michael@0:  * or implied. Any use is at your own risk.
michael@0:  *
michael@0:  * Permission to use or copy this software for any purpose is hereby granted
michael@0:  * without fee, provided the above notices are retained on all copies.
michael@0:  * Permission to modify the code and to distribute modified code is granted,
michael@0:  * provided the above notices are retained, and a notice that the code was
michael@0:  * modified is included with the above copyright notice.
michael@0:  *
michael@0:  */
michael@0: 
michael@0: #include "stlport_prefix.h"
michael@0: 
michael@0: #include <locale>
michael@0: #include <stdexcept>
michael@0: 
michael@0: #include "c_locale.h"
michael@0: #include "locale_impl.h"
michael@0: 
michael@0: _STLP_BEGIN_NAMESPACE
michael@0: 
michael@0: #define _NAMELESS   "*"
michael@0: static const char _Nameless[] = _NAMELESS;
michael@0: 
michael@0: static inline bool is_C_locale_name (const char* name)
michael@0: { return ((name[0] == 'C') && (name[1] == 0)); }
michael@0: 
michael@0: locale* _Stl_get_classic_locale();
michael@0: locale* _Stl_get_global_locale();
michael@0: 
michael@0: #if defined (_STLP_USE_MSVC6_MEM_T_BUG_WORKAROUND) || \
michael@0:     defined (_STLP_SIGNAL_RUNTIME_COMPATIBILITY) || defined (_STLP_CHECK_RUNTIME_COMPATIBILITY)
michael@0: #  define locale _STLP_NO_MEM_T_NAME(loc)
michael@0: #endif
michael@0: 
michael@0: locale::facet::~facet() {}
michael@0: 
michael@0: #if !defined (_STLP_MEMBER_TEMPLATES) || defined (_STLP_INLINE_MEMBER_TEMPLATES)
michael@0: // members that fail to be templates
michael@0: bool locale::operator()(const string& __x,
michael@0:                         const string& __y) const
michael@0: { return __locale_do_operator_call(*this, __x, __y); }
michael@0: 
michael@0: #  if !defined (_STLP_NO_WCHAR_T)
michael@0: bool locale::operator()(const wstring& __x,
michael@0:                         const wstring& __y) const
michael@0: { return __locale_do_operator_call(*this, __x, __y); }
michael@0: #  endif
michael@0: #endif
michael@0: 
michael@0: void _STLP_CALL locale::_M_throw_on_null_name()
michael@0: { _STLP_THROW(runtime_error("Invalid null locale name")); }
michael@0: 
michael@0: void _STLP_CALL locale::_M_throw_on_combine_error(const string& name) {
michael@0:   string what = "Unable to find facet";
michael@0:   what += " in ";
michael@0:   what += name.empty() ? "system" : name.c_str();
michael@0:   what += " locale";
michael@0:   _STLP_THROW(runtime_error(what.c_str()));
michael@0: }
michael@0: 
michael@0: void _STLP_CALL locale::_M_throw_on_creation_failure(int __err_code,
michael@0:                                                      const char* name, const char* facet) {
michael@0:   string what;
michael@0:   switch (__err_code) {
michael@0:     case _STLP_LOC_UNSUPPORTED_FACET_CATEGORY:
michael@0:       what = "No platform localization support for ";
michael@0:       what += facet;
michael@0:       what += " facet category, unable to create facet for ";
michael@0:       what += name[0] == 0 ? "system" : name;
michael@0:       what += " locale";
michael@0:       break;
michael@0:     case _STLP_LOC_NO_PLATFORM_SUPPORT:
michael@0:       what = "No platform localization support, unable to create ";
michael@0:       what += name[0] == 0 ? "system" : name;
michael@0:       what += " locale";
michael@0:       break;
michael@0:     default:
michael@0:     case _STLP_LOC_UNKNOWN_NAME:
michael@0:       what = "Unable to create facet ";
michael@0:       what += facet;
michael@0:       what += " from name '";
michael@0:       what += name;
michael@0:       what += "'";
michael@0:       break;
michael@0:     case _STLP_LOC_NO_MEMORY:
michael@0:       _STLP_THROW_BAD_ALLOC;
michael@0:       break;
michael@0:   }
michael@0: 
michael@0:   _STLP_THROW(runtime_error(what.c_str()));
michael@0: }
michael@0: 
michael@0: // Takes a reference to a locale::id, assign a numeric index if not already
michael@0: // affected and returns it. The returned index is always positive.
michael@0: static const locale::id& _Stl_loc_get_index(locale::id& id) {
michael@0:   if (id._M_index == 0) {
michael@0: #if defined (_STLP_ATOMIC_INCREMENT) && !defined (_STLP_WIN95_LIKE)
michael@0:     static _STLP_VOLATILE __stl_atomic_t _S_index = __STATIC_CAST(__stl_atomic_t, locale::id::_S_max);
michael@0:     id._M_index = _STLP_ATOMIC_INCREMENT(&_S_index);
michael@0: #else
michael@0:     static _STLP_STATIC_MUTEX _Index_lock _STLP_MUTEX_INITIALIZER;
michael@0:     _STLP_auto_lock sentry(_Index_lock);
michael@0:     size_t new_index = locale::id::_S_max++;
michael@0:     id._M_index = new_index;
michael@0: #endif
michael@0:   }
michael@0:   return id;
michael@0: }
michael@0: 
michael@0: // Default constructor: create a copy of the global locale.
michael@0: locale::locale() _STLP_NOTHROW
michael@0:   : _M_impl(_get_Locale_impl(_Stl_get_global_locale()->_M_impl))
michael@0: {}
michael@0: 
michael@0: // Copy constructor
michael@0: locale::locale(const locale& L) _STLP_NOTHROW
michael@0:   : _M_impl( _get_Locale_impl( L._M_impl ) )
michael@0: {}
michael@0: 
michael@0: void locale::_M_insert(facet* f, locale::id& n) {
michael@0:   if (f)
michael@0:     _M_impl->insert(f, _Stl_loc_get_index(n));
michael@0: }
michael@0: 
michael@0: locale::locale( _Locale_impl* impl ) :
michael@0:   _M_impl( _get_Locale_impl( impl ) )
michael@0: {}
michael@0: 
michael@0: // Create a locale from a name.
michael@0: locale::locale(const char* name)
michael@0:   : _M_impl(0) {
michael@0:   if (!name)
michael@0:     _M_throw_on_null_name();
michael@0: 
michael@0:   if (is_C_locale_name(name)) {
michael@0:     _M_impl = _get_Locale_impl( locale::classic()._M_impl );
michael@0:     return;
michael@0:   }
michael@0: 
michael@0:   _Locale_impl* impl = 0;
michael@0:   _STLP_TRY {
michael@0:     impl = new _Locale_impl(locale::id::_S_max, name);
michael@0: 
michael@0:     // Insert categories one at a time.
michael@0:     _Locale_name_hint *hint = 0;
michael@0:     const char* ctype_name = name;
michael@0:     char ctype_buf[_Locale_MAX_SIMPLE_NAME];
michael@0:     const char* numeric_name = name;
michael@0:     char numeric_buf[_Locale_MAX_SIMPLE_NAME];
michael@0:     const char* time_name = name;
michael@0:     char time_buf[_Locale_MAX_SIMPLE_NAME];
michael@0:     const char* collate_name = name;
michael@0:     char collate_buf[_Locale_MAX_SIMPLE_NAME];
michael@0:     const char* monetary_name = name;
michael@0:     char monetary_buf[_Locale_MAX_SIMPLE_NAME];
michael@0:     const char* messages_name = name;
michael@0:     char messages_buf[_Locale_MAX_SIMPLE_NAME];
michael@0:     hint = impl->insert_ctype_facets(ctype_name, ctype_buf, hint);
michael@0:     hint = impl->insert_numeric_facets(numeric_name, numeric_buf, hint);
michael@0:     hint = impl->insert_time_facets(time_name, time_buf, hint);
michael@0:     hint = impl->insert_collate_facets(collate_name, collate_buf, hint);
michael@0:     hint = impl->insert_monetary_facets(monetary_name, monetary_buf, hint);
michael@0:     impl->insert_messages_facets(messages_name, messages_buf, hint);
michael@0: 
michael@0:     // Try to use a normalize locale name in order to have the == operator
michael@0:     // to behave correctly:
michael@0:     if (strcmp(ctype_name, numeric_name) == 0 &&
michael@0:         strcmp(ctype_name, time_name) == 0 &&
michael@0:         strcmp(ctype_name, collate_name) == 0 &&
michael@0:         strcmp(ctype_name, monetary_name) == 0 &&
michael@0:         strcmp(ctype_name, messages_name) == 0) {
michael@0:       impl->name = ctype_name;
michael@0:     }
michael@0:     // else we keep current name.
michael@0: 
michael@0:     // reassign impl
michael@0:     _M_impl = _get_Locale_impl( impl );
michael@0:   }
michael@0:   _STLP_UNWIND(delete impl);
michael@0: }
michael@0: 
michael@0: static void _Stl_loc_combine_names_aux(_Locale_impl* L,
michael@0:                                        const char* name,
michael@0:                                        const char* ctype_name, const char* time_name, const char* numeric_name,
michael@0:                                        const char* collate_name, const char* monetary_name, const char* messages_name,
michael@0:                                        locale::category c) {
michael@0:   // This function is only called when names has been validated so using _Locale_extract_*_name
michael@0:   // can't fail.
michael@0:   int __err_code;
michael@0:   char buf[_Locale_MAX_SIMPLE_NAME];
michael@0:   L->name = string("LC_CTYPE=") + _Locale_extract_ctype_name((c & locale::ctype) ? ctype_name : name, buf, 0, &__err_code) + ";";
michael@0:   L->name += string("LC_TIME=") + _Locale_extract_time_name((c & locale::time) ? time_name : name, buf, 0, &__err_code) + ";";
michael@0:   L->name += string("LC_NUMERIC=") + _Locale_extract_numeric_name((c & locale::numeric) ? numeric_name : name, buf, 0, &__err_code) + ";";
michael@0:   L->name += string("LC_COLLATE=") + _Locale_extract_collate_name((c & locale::collate) ? collate_name : name, buf, 0, &__err_code) + ";";
michael@0:   L->name += string("LC_MONETARY=") + _Locale_extract_monetary_name((c & locale::monetary) ? monetary_name : name, buf, 0, &__err_code) + ";";
michael@0:   L->name += string("LC_MESSAGES=") + _Locale_extract_messages_name((c & locale::messages) ? messages_name : name, buf, 0, &__err_code);
michael@0: }
michael@0: 
michael@0: // Give L a name where all facets except those in category c
michael@0: // are taken from name1, and those in category c are taken from name2.
michael@0: static void _Stl_loc_combine_names(_Locale_impl* L,
michael@0:                                    const char* name1, const char* name2,
michael@0:                                    locale::category c) {
michael@0:   if ((c & locale::all) == 0 || strcmp(name1, name1) == 0)
michael@0:     L->name = name1;
michael@0:   else if ((c & locale::all) == locale::all)
michael@0:     L->name = name2;
michael@0:   else {
michael@0:     _Stl_loc_combine_names_aux(L, name1, name2, name2, name2, name2, name2, name2, c);
michael@0:   }
michael@0: }
michael@0: 
michael@0: static void _Stl_loc_combine_names(_Locale_impl* L,
michael@0:                                    const char* name,
michael@0:                                    const char* ctype_name, const char* time_name, const char* numeric_name,
michael@0:                                    const char* collate_name, const char* monetary_name, const char* messages_name,
michael@0:                                    locale::category c) {
michael@0:   if ((c & locale::all) == 0 || (strcmp(name, ctype_name) == 0 &&
michael@0:                                  strcmp(name, time_name) == 0 &&
michael@0:                                  strcmp(name, numeric_name) == 0 &&
michael@0:                                  strcmp(name, collate_name) == 0 &&
michael@0:                                  strcmp(name, monetary_name) == 0 &&
michael@0:                                  strcmp(name, messages_name) == 0))
michael@0:     L->name = name;
michael@0:   else if ((c & locale::all) == locale::all && strcmp(ctype_name, time_name) == 0 &&
michael@0:                                                strcmp(ctype_name, numeric_name) == 0 &&
michael@0:                                                strcmp(ctype_name, collate_name) == 0 &&
michael@0:                                                strcmp(ctype_name, monetary_name) == 0 &&
michael@0:                                                strcmp(ctype_name, messages_name) == 0)
michael@0:     L->name = ctype_name;
michael@0:   else {
michael@0:     _Stl_loc_combine_names_aux(L, name, ctype_name, time_name, numeric_name, collate_name, monetary_name, messages_name, c);
michael@0:   }
michael@0: }
michael@0: 
michael@0: 
michael@0: // Create a locale that's a copy of L, except that all of the facets
michael@0: // in category c are instead constructed by name.
michael@0: locale::locale(const locale& L, const char* name, locale::category c)
michael@0:   : _M_impl(0) {
michael@0:   if (!name)
michael@0:     _M_throw_on_null_name();
michael@0: 
michael@0:   if (!::strcmp(_Nameless, name))
michael@0:     _STLP_THROW(runtime_error("Invalid locale name '" _NAMELESS "'"));
michael@0: 
michael@0:   _Locale_impl* impl = 0;
michael@0: 
michael@0:   _STLP_TRY {
michael@0:     impl = new _Locale_impl(*L._M_impl);
michael@0: 
michael@0:     _Locale_name_hint *hint = 0;
michael@0:     const char* ctype_name = name;
michael@0:     char ctype_buf[_Locale_MAX_SIMPLE_NAME];
michael@0:     const char* numeric_name = name;
michael@0:     char numeric_buf[_Locale_MAX_SIMPLE_NAME];
michael@0:     const char* time_name = name;
michael@0:     char time_buf[_Locale_MAX_SIMPLE_NAME];
michael@0:     const char* collate_name = name;
michael@0:     char collate_buf[_Locale_MAX_SIMPLE_NAME];
michael@0:     const char* monetary_name = name;
michael@0:     char monetary_buf[_Locale_MAX_SIMPLE_NAME];
michael@0:     const char* messages_name = name;
michael@0:     char messages_buf[_Locale_MAX_SIMPLE_NAME];
michael@0:     if (c & locale::ctype)
michael@0:       hint = impl->insert_ctype_facets(ctype_name, ctype_buf, hint);
michael@0:     if (c & locale::numeric)
michael@0:       hint = impl->insert_numeric_facets(numeric_name, numeric_buf, hint);
michael@0:     if (c & locale::time)
michael@0:       hint = impl->insert_time_facets(time_name, time_buf, hint);
michael@0:     if (c & locale::collate)
michael@0:       hint = impl->insert_collate_facets(collate_name, collate_buf, hint);
michael@0:     if (c & locale::monetary)
michael@0:       hint = impl->insert_monetary_facets(monetary_name, monetary_buf,hint);
michael@0:     if (c & locale::messages)
michael@0:       impl->insert_messages_facets(messages_name, messages_buf, hint);
michael@0: 
michael@0:     _Stl_loc_combine_names(impl, L._M_impl->name.c_str(),
michael@0:                            ctype_name, time_name, numeric_name,
michael@0:                            collate_name, monetary_name, messages_name, c);
michael@0:     _M_impl = _get_Locale_impl( impl );
michael@0:   }
michael@0:   _STLP_UNWIND(delete impl)
michael@0: }
michael@0: 
michael@0: // Contruct a new locale where all facets that aren't in category c
michael@0: // come from L1, and all those that are in category c come from L2.
michael@0: locale::locale(const locale& L1, const locale& L2, category c)
michael@0:   : _M_impl(0) {
michael@0:   _Locale_impl* impl = new _Locale_impl(*L1._M_impl);
michael@0: 
michael@0:   _Locale_impl* i2 = L2._M_impl;
michael@0: 
michael@0:   if (L1.name() != _Nameless && L2.name() != _Nameless)
michael@0:     _Stl_loc_combine_names(impl, L1._M_impl->name.c_str(), L2._M_impl->name.c_str(), c);
michael@0:   else {
michael@0:     impl->name = _Nameless;
michael@0:   }
michael@0: 
michael@0:   if (c & collate) {
michael@0:     impl->insert( i2, _STLP_STD::collate<char>::id);
michael@0: # ifndef _STLP_NO_WCHAR_T
michael@0:     impl->insert( i2, _STLP_STD::collate<wchar_t>::id);
michael@0: # endif
michael@0:   }
michael@0:   if (c & ctype) {
michael@0:     impl->insert( i2, _STLP_STD::ctype<char>::id);
michael@0:     impl->insert( i2, _STLP_STD::codecvt<char, char, mbstate_t>::id);
michael@0: # ifndef _STLP_NO_WCHAR_T
michael@0:     impl->insert( i2, _STLP_STD::ctype<wchar_t>::id);
michael@0:     impl->insert( i2, _STLP_STD::codecvt<wchar_t, char, mbstate_t>::id);
michael@0: # endif
michael@0:   }
michael@0:   if (c & monetary) {
michael@0:     impl->insert( i2, _STLP_STD::moneypunct<char, true>::id);
michael@0:     impl->insert( i2, _STLP_STD::moneypunct<char, false>::id);
michael@0:     impl->insert( i2, _STLP_STD::money_get<char, istreambuf_iterator<char, char_traits<char> > >::id);
michael@0:     impl->insert( i2, _STLP_STD::money_put<char, ostreambuf_iterator<char, char_traits<char> > >::id);
michael@0: # ifndef _STLP_NO_WCHAR_T
michael@0:     impl->insert( i2, _STLP_STD::moneypunct<wchar_t, true>::id);
michael@0:     impl->insert( i2, _STLP_STD::moneypunct<wchar_t, false>::id);
michael@0:     impl->insert( i2, _STLP_STD::money_get<wchar_t, istreambuf_iterator<wchar_t, char_traits<wchar_t> > >::id);
michael@0:     impl->insert( i2, _STLP_STD::money_put<wchar_t, ostreambuf_iterator<wchar_t, char_traits<wchar_t> > >::id);
michael@0: # endif
michael@0:   }
michael@0:   if (c & numeric) {
michael@0:     impl->insert( i2, _STLP_STD::numpunct<char>::id);
michael@0:     impl->insert( i2, _STLP_STD::num_get<char, istreambuf_iterator<char, char_traits<char> > >::id);
michael@0:     impl->insert( i2, _STLP_STD::num_put<char, ostreambuf_iterator<char, char_traits<char> > >::id);
michael@0: # ifndef _STLP_NO_WCHAR_T
michael@0:     impl->insert( i2, _STLP_STD::numpunct<wchar_t>::id);
michael@0:     impl->insert( i2, _STLP_STD::num_get<wchar_t, istreambuf_iterator<wchar_t, char_traits<wchar_t> > >::id);
michael@0:     impl->insert( i2, _STLP_STD::num_put<wchar_t, ostreambuf_iterator<wchar_t, char_traits<wchar_t> > >::id);
michael@0: # endif
michael@0:   }
michael@0:   if (c & time) {
michael@0:     impl->insert( i2, _STLP_STD::time_get<char, istreambuf_iterator<char, char_traits<char> > >::id);
michael@0:     impl->insert( i2, _STLP_STD::time_put<char, ostreambuf_iterator<char, char_traits<char> > >::id);
michael@0: # ifndef _STLP_NO_WCHAR_T
michael@0:     impl->insert( i2, _STLP_STD::time_get<wchar_t, istreambuf_iterator<wchar_t, char_traits<wchar_t> > >::id);
michael@0:     impl->insert( i2, _STLP_STD::time_put<wchar_t, ostreambuf_iterator<wchar_t, char_traits<wchar_t> > >::id);
michael@0: # endif
michael@0:   }
michael@0:   if (c & messages) {
michael@0:     impl->insert( i2, _STLP_STD::messages<char>::id);
michael@0: # ifndef _STLP_NO_WCHAR_T
michael@0:     impl->insert( i2, _STLP_STD::messages<wchar_t>::id);
michael@0: # endif
michael@0:   }
michael@0:   _M_impl = _get_Locale_impl( impl );
michael@0: }
michael@0: 
michael@0: // Destructor.
michael@0: locale::~locale() _STLP_NOTHROW {
michael@0:   if (_M_impl)
michael@0:     _release_Locale_impl(_M_impl);
michael@0: }
michael@0: 
michael@0: // Assignment operator.  Much like the copy constructor: just a bit of
michael@0: // pointer twiddling.
michael@0: const locale& locale::operator=(const locale& L) _STLP_NOTHROW {
michael@0:   if (this->_M_impl != L._M_impl) {
michael@0:     if (this->_M_impl)
michael@0:       _release_Locale_impl(this->_M_impl);
michael@0:     this->_M_impl = _get_Locale_impl(L._M_impl);
michael@0:   }
michael@0:   return *this;
michael@0: }
michael@0: 
michael@0: locale::facet* locale::_M_get_facet(const locale::id& n) const {
michael@0:   return n._M_index < _M_impl->size() ? _M_impl->facets_vec[n._M_index] : 0;
michael@0: }
michael@0: 
michael@0: locale::facet* locale::_M_use_facet(const locale::id& n) const {
michael@0:   locale::facet* f = (n._M_index < _M_impl->size() ? _M_impl->facets_vec[n._M_index] : 0);
michael@0:   if (!f)
michael@0:     _M_impl->_M_throw_bad_cast();
michael@0:   return f;
michael@0: }
michael@0: 
michael@0: string locale::name() const {
michael@0:   return _M_impl->name;
michael@0: }
michael@0: 
michael@0: // Compare two locales for equality.
michael@0: bool locale::operator==(const locale& L) const {
michael@0:   return this->_M_impl == L._M_impl ||
michael@0:          (this->name() == L.name() && this->name() != _Nameless);
michael@0: }
michael@0: 
michael@0: bool locale::operator!=(const locale& L) const {
michael@0:   return !(*this == L);
michael@0: }
michael@0: 
michael@0: // static data members.
michael@0: 
michael@0: const locale& _STLP_CALL locale::classic() {
michael@0:   return *_Stl_get_classic_locale();
michael@0: }
michael@0: 
michael@0: #if !defined (_STLP_USE_MSVC6_MEM_T_BUG_WORKAROUND)
michael@0: locale _STLP_CALL locale::global(const locale& L) {
michael@0: #else
michael@0: _Locale_impl* _STLP_CALL locale::global(const locale& L) {
michael@0: #endif
michael@0:   locale old(_Stl_get_global_locale()->_M_impl);
michael@0:   if (_Stl_get_global_locale()->_M_impl != L._M_impl) {
michael@0:     _release_Locale_impl(_Stl_get_global_locale()->_M_impl);
michael@0:     // this assign should be atomic, should be fixed here:
michael@0:     _Stl_get_global_locale()->_M_impl = _get_Locale_impl(L._M_impl);
michael@0: 
michael@0:     // Set the global C locale, if appropriate.
michael@0: #if !defined(_STLP_NO_LOCALE_SUPPORT)
michael@0:     if (L.name() != _Nameless)
michael@0:       setlocale(LC_ALL, L.name().c_str());
michael@0: #endif
michael@0:   }
michael@0: 
michael@0: #if !defined (_STLP_USE_MSVC6_MEM_T_BUG_WORKAROUND)
michael@0:   return old;
michael@0: #else
michael@0:   return old._M_impl;
michael@0: #endif
michael@0: }
michael@0: 
michael@0: #if !defined (_STLP_STATIC_CONST_INIT_BUG) && !defined (_STLP_NO_STATIC_CONST_DEFINITION)
michael@0: const locale::category locale::none;
michael@0: const locale::category locale::collate;
michael@0: const locale::category locale::ctype;
michael@0: const locale::category locale::monetary;
michael@0: const locale::category locale::numeric;
michael@0: const locale::category locale::time;
michael@0: const locale::category locale::messages;
michael@0: const locale::category locale::all;
michael@0: #endif
michael@0: 
michael@0: _STLP_END_NAMESPACE
michael@0: