-// Copyright (C) 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
+// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003
+// Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// invalidate any other reasons why the executable file might be covered by
// the GNU General Public License.
-#include <bits/std_clocale.h>
-#include <bits/std_locale.h>
-#include <bits/std_cstring.h>
-#include <bits/std_vector.h>
-#include <bits/std_stdexcept.h>
+#include <clocale>
+#include <cstring>
+#include <locale>
-namespace std {
- locale::_Impl::
- ~_Impl() throw()
- {
- __vec_facet::iterator it = _M_facets->begin();
- for (; it != _M_facets->end(); ++it)
- if (*it)
- (*it)->_M_remove_reference();
- delete _M_facets;
- locale::facet::_S_destroy_c_locale(_M_c_locale);
- }
+namespace std
+{
+ using namespace __gnu_cxx;
- // Clone existing _Impl object.
- locale::_Impl::
- _Impl(const _Impl& __imp, size_t __refs)
- : _M_references(__refs - 1), _M_facets(0), _M_c_locale(0) // XXX
+
+ locale::locale(const char* __s)
{
- try
- { _M_facets = new __vec_facet(*(__imp._M_facets)); }
- catch(...)
+ if (__s)
{
- delete _M_facets;
- throw;
+ _S_initialize();
+ if (std::strcmp(__s, "C") == 0 || std::strcmp(__s, "POSIX") == 0)
+ (_M_impl = _S_classic)->_M_add_reference();
+ else if (std::strcmp(__s, "") != 0)
+ _M_impl = new _Impl(__s, 1);
+ else
+ {
+ // Get it from the environment.
+ char* __env = std::getenv("LC_ALL");
+ // If LC_ALL is set we are done.
+ if (__env && std::strcmp(__env, "") != 0)
+ {
+ if (std::strcmp(__env, "C") == 0
+ || std::strcmp(__env, "POSIX") == 0)
+ (_M_impl = _S_classic)->_M_add_reference();
+ else
+ _M_impl = new _Impl(__env, 1);
+ }
+ else
+ {
+ // LANG may set a default different from "C".
+ string __res;
+ char* __env = std::getenv("LANG");
+ if (!__env || std::strcmp(__env, "") == 0
+ || std::strcmp(__env, "C") == 0
+ || std::strcmp(__env, "POSIX") == 0)
+ __res = "C";
+ else
+ __res = __env;
+
+ // Scan the categories looking for the first one
+ // different from LANG.
+ size_t __i = 0;
+ if (__res == "C")
+ for (; __i < _S_categories_size; ++__i)
+ {
+ __env = std::getenv(_S_categories[__i]);
+ if (__env && std::strcmp(__env, "") != 0
+ && std::strcmp(__env, "C") != 0
+ && std::strcmp(__env, "POSIX") != 0)
+ break;
+ }
+ else
+ for (; __i < _S_categories_size; ++__i)
+ {
+ __env = std::getenv(_S_categories[__i]);
+ if (__env && std::strcmp(__env, "") != 0
+ && __res != __env)
+ break;
+ }
+
+ // If one is found, build the complete string of
+ // the form LC_CTYPE=xxx;LC_NUMERIC=yyy; and so on...
+ if (__i < _S_categories_size)
+ {
+ string __str;
+ for (size_t __j = 0; __j < __i; ++__j)
+ {
+ __str += _S_categories[__j];
+ __str += '=';
+ __str += __res;
+ __str += ';';
+ }
+ __str += _S_categories[__i];
+ __str += '=';
+ __str += __env;
+ __str += ';';
+ __i++;
+ for (; __i < _S_categories_size; ++__i)
+ {
+ __env = std::getenv(_S_categories[__i]);
+ if (!__env || std::strcmp(__env, "") == 0)
+ {
+ __str += _S_categories[__i];
+ __str += '=';
+ __str += __res;
+ __str += ';';
+ }
+ else if (std::strcmp(__env, "C") == 0
+ || std::strcmp(__env, "POSIX") == 0)
+ {
+ __str += _S_categories[__i];
+ __str += "=C;";
+ }
+ else
+ {
+ __str += _S_categories[__i];
+ __str += '=';
+ __str += __env;
+ __str += ';';
+ }
+ }
+ __str.erase(__str.end() - 1);
+ _M_impl = new _Impl(__str.c_str(), 1);
+ }
+ // ... otherwise either an additional instance of
+ // the "C" locale or LANG.
+ else if (__res == "C")
+ (_M_impl = _S_classic)->_M_add_reference();
+ else
+ _M_impl = new _Impl(__res.c_str(), 1);
+ }
+ }
}
+ else
+ __throw_runtime_error("locale::locale NULL not valid");
+ }
+
+ locale::locale(const locale& __base, const char* __s, category __cat)
+ {
+ // NB: There are complicated, yet more efficient ways to do
+ // this. Building up locales on a per-category way is tedious, so
+ // let's do it this way until people complain.
+ locale __add(__s);
+ _M_coalesce(__base, __add, __cat);
+ }
+
+ locale::locale(const locale& __base, const locale& __add, category __cat)
+ { _M_coalesce(__base, __add, __cat); }
- for (size_t i = 0; i < _S_num_categories; ++i)
- _M_names[i] = __imp._M_names[i];
+ void
+ locale::_M_coalesce(const locale& __base, const locale& __add,
+ category __cat)
+ {
+ __cat = _S_normalize_category(__cat);
+ _M_impl = new _Impl(*__base._M_impl, 1);
- __vec_facet::iterator __it = _M_facets->begin();
- for (; __it != _M_facets->end(); ++__it)
- if (*__it)
- (*__it)->_M_add_reference();
+ try
+ { _M_impl->_M_replace_categories(__add._M_impl, __cat); }
+ catch (...)
+ {
+ _M_impl->_M_remove_reference();
+ __throw_exception_again;
+ }
}
- // Construct named _Impl, including the standard "C" locale.
+ // Construct named _Impl.
locale::_Impl::
- _Impl(string __str, size_t __refs)
- : _M_references(__refs - 1), _M_facets(0)
+ _Impl(const char* __s, size_t __refs)
+ : _M_references(__refs), _M_facets_size(_GLIBCXX_NUM_FACETS)
{
// Initialize the underlying locale model, which also checks to
// see if the given name is valid.
- if (__str != "C" && __str != "POSIX")
- locale::facet::_S_create_c_locale(_M_c_locale, __str.c_str());
- else
- _M_c_locale = NULL;
+ __c_locale __cloc;
+ locale::facet::_S_create_c_locale(__cloc, __s);
- // Allocate facet container.
+ _M_facets = _M_caches = 0;
+ _M_names = 0;
try
- { _M_facets = new __vec_facet(_S_num_facets, NULL); }
- catch(...)
{
- delete _M_facets;
- throw;
- }
-
- // Name all the categories.
- for (size_t i = 0; i < _S_num_categories; ++i)
- _M_names[i] = __str;
+ _M_facets = new const facet*[_M_facets_size];
+ for (size_t __i = 0; __i < _M_facets_size; ++__i)
+ _M_facets[__i] = 0;
+ _M_caches = new const facet*[_M_facets_size];
+ for (size_t __i = 0; __i < _M_facets_size; ++__i)
+ _M_caches[__i] = 0;
+ _M_names = new char*[_S_categories_size];
+ for (size_t __i = 0; __i < _S_categories_size; ++__i)
+ _M_names[__i] = 0;
- // Construct all standard facets and add them to _M_facets.
- // XXX Eventually, all should use __c_locale ctor like numpunct
- _M_init_facet(new std::collate<char>);
- _M_init_facet(new std::ctype<char>);
- _M_init_facet(new codecvt<char, char, mbstate_t>);
- _M_init_facet(new moneypunct<char, false>(_M_c_locale));
- _M_init_facet(new moneypunct<char,true >);
- _M_init_facet(new money_get<char>);
- _M_init_facet(new money_put<char>);
- _M_init_facet(new numpunct<char>(_M_c_locale));
- _M_init_facet(new num_get<char>);
- _M_init_facet(new num_put<char>);
- _M_init_facet(new time_get<char>);
- _M_init_facet(new time_put<char>);
- _M_init_facet(new std::messages<char>);
-
-#ifdef _GLIBCPP_USE_WCHAR_T
- _M_init_facet(new std::collate<wchar_t>);
- _M_init_facet(new std::ctype<wchar_t>);
- _M_init_facet(new codecvt<wchar_t, char, mbstate_t>);
- _M_init_facet(new moneypunct<wchar_t, false>(_M_c_locale));
- _M_init_facet(new moneypunct<wchar_t,true >);
- _M_init_facet(new money_get<wchar_t>);
- _M_init_facet(new money_put<wchar_t>);
- _M_init_facet(new numpunct<wchar_t>(_M_c_locale));
- _M_init_facet(new num_get<wchar_t>);
- _M_init_facet(new num_put<wchar_t>);
- _M_init_facet(new time_get<wchar_t>);
- _M_init_facet(new time_put<wchar_t>);
- _M_init_facet(new std::messages<wchar_t>);
+ // Name all the categories.
+ const size_t __len = std::strlen(__s);
+ if (!std::strchr(__s, ';'))
+ {
+ for (size_t __i = 0; __i < _S_categories_size; ++__i)
+ {
+ _M_names[__i] = new char[__len + 1];
+ std::strcpy(_M_names[__i], __s);
+ }
+ }
+ else
+ {
+ const char* __beg = __s;
+ for (size_t __i = 0; __i < _S_categories_size; ++__i)
+ {
+ __beg = std::strchr(__beg, '=') + 1;
+ const char* __end = std::strchr(__beg, ';');
+ if (!__end)
+ __end = __s + __len;
+ char* __new = new char[__end - __beg + 1];
+ std::memcpy(__new, __beg, __end - __beg);
+ __new[__end - __beg] = '\0';
+ _M_names[__i] = __new;
+ }
+ }
+
+ // Construct all standard facets and add them to _M_facets.
+ _M_init_facet(new std::ctype<char>(__cloc, 0, false));
+ _M_init_facet(new codecvt<char, char, mbstate_t>(__cloc));
+ _M_init_facet(new numpunct<char>(__cloc));
+ _M_init_facet(new num_get<char>);
+ _M_init_facet(new num_put<char>);
+ _M_init_facet(new std::collate<char>(__cloc));
+ _M_init_facet(new moneypunct<char, false>(__cloc, __s));
+ _M_init_facet(new moneypunct<char, true>(__cloc, __s));
+ _M_init_facet(new money_get<char>);
+ _M_init_facet(new money_put<char>);
+ _M_init_facet(new __timepunct<char>(__cloc, __s));
+ _M_init_facet(new time_get<char>);
+ _M_init_facet(new time_put<char>);
+ _M_init_facet(new std::messages<char>(__cloc, __s));
+
+#ifdef _GLIBCXX_USE_WCHAR_T
+ _M_init_facet(new std::ctype<wchar_t>(__cloc));
+ _M_init_facet(new codecvt<wchar_t, char, mbstate_t>(__cloc));
+ _M_init_facet(new numpunct<wchar_t>(__cloc));
+ _M_init_facet(new num_get<wchar_t>);
+ _M_init_facet(new num_put<wchar_t>);
+ _M_init_facet(new std::collate<wchar_t>(__cloc));
+ _M_init_facet(new moneypunct<wchar_t, false>(__cloc, __s));
+ _M_init_facet(new moneypunct<wchar_t, true>(__cloc, __s));
+ _M_init_facet(new money_get<wchar_t>);
+ _M_init_facet(new money_put<wchar_t>);
+ _M_init_facet(new __timepunct<wchar_t>(__cloc, __s));
+ _M_init_facet(new time_get<wchar_t>);
+ _M_init_facet(new time_put<wchar_t>);
+ _M_init_facet(new std::messages<wchar_t>(__cloc, __s));
#endif
+ locale::facet::_S_destroy_c_locale(__cloc);
+ }
+ catch(...)
+ {
+ locale::facet::_S_destroy_c_locale(__cloc);
+ this->~_Impl();
+ __throw_exception_again;
+ }
}
-
+
void
locale::_Impl::
_M_replace_categories(const _Impl* __imp, category __cat)
{
- const string __none("*");
- category __mask;
- for (unsigned int __ix = 0; __ix < _S_num_categories; ++__ix)
+ for (size_t __ix = 0; __ix < _S_categories_size; ++__ix)
{
- __mask = 1 << __ix;
+ const category __mask = 1 << __ix;
if (__mask & __cat)
{
// Need to replace entry in _M_facets with other locale's info.
_M_replace_category(__imp, _S_facet_categories[__ix]);
// If both have names, go ahead and mangle.
- if (_M_names[__ix] != __none && __imp->_M_names[__ix] != __none)
- _M_names[__ix] = __imp->_M_names[__ix];
- }
- }
- }
-
- void
- locale::_Impl::
- _M_replace_category(const _Impl* __imp, const locale::id* const* __idpp)
- {
- for (; *__idpp; ++__idpp)
- _M_replace_facet(__imp, *__idpp);
- }
-
- void
- locale::_Impl::
- _M_replace_facet(const _Impl* __imp, const locale::id* __idp)
- {
- size_t __index = __idp->_M_index;
- if (__index == 0
- || __imp->_M_facets->size() <= __index
- || (*(__imp->_M_facets))[__index] == 0)
- throw runtime_error("no locale facet");
-
- _M_install_facet(__idp, (*(__imp->_M_facets))[__index]);
- }
-
- void
- locale::_Impl::
- _M_install_facet(const locale::id* __idp, facet* __fp)
- {
- if (__fp)
- {
- size_t& __index = __idp->_M_index;
- if (!__index)
- __index = ++locale::id::_S_highwater; // XXX MT
-
- if (__index >= _M_facets->size())
- _M_facets->resize(__index + 1, 0); // might throw
-
- facet*& __fpr = (*_M_facets)[__index];
- if (__fpr)
- {
- // Replacing an existing facet.
- // Order matters, here:
- __fp->_M_add_reference();
- if (__fpr)
- __fpr->_M_remove_reference();
- __fpr = __fp;
- }
- else
- {
- // Installing a newly created facet into an empty
- // _M_facets container, say a newly-constructed,
- // swanky-fresh _Impl.
- (*_M_facets)[__index] = __fp;
+ if (std::strcmp(_M_names[__ix], "*") != 0
+ && std::strcmp(__imp->_M_names[__ix], "*") != 0)
+ {
+ char* __new = new char[std::strlen(__imp->_M_names[__ix]) + 1];
+ std::strcpy(__new, __imp->_M_names[__ix]);
+ delete [] _M_names[__ix];
+ _M_names[__ix] = __new;
+ }
}
}
}
-}
-
-
-
-
+} // namespace std
OSDN Git Service
