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// 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
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING. If not, write to the Free
// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.
// As a special exception, you may use this file as part of a free software
// library without restriction. Specifically, if other files instantiate
// templates or use macros or inline functions from this file, or you compile
// this file and link it with other files to produce an executable, this
// file does not by itself cause the resulting executable to be covered by
// the GNU General Public License. This exception does not however
// invalidate any other reasons why the executable file might be covered by
// the GNU General Public License.
#include <clocale>
#include <cstring>
#include <locale>
namespace std
{
using namespace __gnu_cxx;
locale::locale(const char* __s)
{
if (__s)
{
_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); }
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);
try
{ _M_impl->_M_replace_categories(__add._M_impl, __cat); }
catch (...)
{
_M_impl->_M_remove_reference();
__throw_exception_again;
}
}
// Construct named _Impl.
locale::_Impl::
_Impl(const char* __s, size_t __refs)
: _M_refcount(__refs), _M_facets_size(_GLIBCXX_NUM_FACETS)
{
// Initialize the underlying locale model, which also checks to
// see if the given name is valid.
__c_locale __cloc;
locale::facet::_S_create_c_locale(__cloc, __s);
_M_facets = _M_caches = 0;
_M_names = 0;
try
{
_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;
// 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)
{
for (size_t __ix = 0; __ix < _S_categories_size; ++__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 (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
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