591 lines
15 KiB
C++
591 lines
15 KiB
C++
// Copyright (C) 1997, 1998, 1999, 2000, 2001 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 <cassert>
|
|
#include <cctype>
|
|
#include <limits>
|
|
#include <exception>
|
|
#include <stdexcept>
|
|
#include <locale>
|
|
#include <istream>
|
|
#include <ostream>
|
|
#include <vector>
|
|
#include <memory> // for auto_ptr
|
|
#ifdef _GLIBCPP_USE_WCHAR_T
|
|
# include <cwctype> // for towupper, etc.
|
|
#endif
|
|
|
|
namespace std
|
|
{
|
|
// Defined in globals.cc.
|
|
extern locale::_Impl locale_impl_c;
|
|
extern locale locale_c;
|
|
|
|
// Definitions for static const data members of locale.
|
|
const locale::category locale::none;
|
|
const locale::category locale::ctype;
|
|
const locale::category locale::numeric;
|
|
const locale::category locale::collate;
|
|
const locale::category locale::time;
|
|
const locale::category locale::monetary;
|
|
const locale::category locale::messages;
|
|
const locale::category locale::all;
|
|
|
|
locale::_Impl* locale::_S_classic;
|
|
locale::_Impl* locale::_S_global;
|
|
const size_t locale::_S_num_categories;
|
|
const size_t locale::_S_num_facets;
|
|
|
|
// Definitions for locale::id of standard facets.
|
|
locale::id ctype<char>::id;
|
|
locale::id codecvt<char, char, mbstate_t>::id;
|
|
|
|
#ifdef _GLIBCPP_USE_WCHAR_T
|
|
locale::id ctype<wchar_t>::id;
|
|
locale::id codecvt<wchar_t, char, mbstate_t>::id;
|
|
#endif
|
|
|
|
// Definitions for static const data members of locale::id
|
|
size_t locale::id::_S_highwater; // init'd to 0 by linker
|
|
|
|
// Definitions for static const data members of locale::_Impl
|
|
const locale::id* const
|
|
locale::_Impl::_S_id_ctype[] =
|
|
{
|
|
&std::ctype<char>::id,
|
|
&codecvt<char, char, mbstate_t>::id,
|
|
#ifdef _GLIBCPP_USE_WCHAR_T
|
|
&std::ctype<wchar_t>::id,
|
|
&codecvt<wchar_t, char, mbstate_t>::id,
|
|
#endif
|
|
0
|
|
};
|
|
|
|
const locale::id* const
|
|
locale::_Impl::_S_id_numeric[] =
|
|
{
|
|
&num_get<char>::id,
|
|
&num_put<char>::id,
|
|
&numpunct<char>::id,
|
|
#ifdef _GLIBCPP_USE_WCHAR_T
|
|
&num_get<wchar_t>::id,
|
|
&num_put<wchar_t>::id,
|
|
&numpunct<wchar_t>::id,
|
|
#endif
|
|
0
|
|
};
|
|
|
|
const locale::id* const
|
|
locale::_Impl::_S_id_collate[] =
|
|
{
|
|
&std::collate<char>::id,
|
|
#ifdef _GLIBCPP_USE_WCHAR_T
|
|
&std::collate<wchar_t>::id,
|
|
#endif
|
|
0
|
|
};
|
|
|
|
const locale::id* const
|
|
locale::_Impl::_S_id_time[] =
|
|
{
|
|
&__timepunct<char>::id,
|
|
&time_get<char>::id,
|
|
&time_put<char>::id,
|
|
#ifdef _GLIBCPP_USE_WCHAR_T
|
|
&__timepunct<wchar_t>::id,
|
|
&time_get<wchar_t>::id,
|
|
&time_put<wchar_t>::id,
|
|
#endif
|
|
0
|
|
};
|
|
|
|
const locale::id* const
|
|
locale::_Impl::_S_id_monetary[] =
|
|
{
|
|
&money_get<char>::id,
|
|
&money_put<char>::id,
|
|
&moneypunct<char, false>::id,
|
|
&moneypunct<char, true >::id,
|
|
#ifdef _GLIBCPP_USE_WCHAR_T
|
|
&money_get<wchar_t>::id,
|
|
&money_put<wchar_t>::id,
|
|
&moneypunct<wchar_t, false>::id,
|
|
&moneypunct<wchar_t, true >::id,
|
|
#endif
|
|
0
|
|
};
|
|
|
|
const locale::id* const
|
|
locale::_Impl::_S_id_messages[] =
|
|
{
|
|
&std::messages<char>::id,
|
|
#ifdef _GLIBCPP_USE_WCHAR_T
|
|
&std::messages<wchar_t>::id,
|
|
#endif
|
|
0
|
|
};
|
|
|
|
const locale::id* const* const
|
|
locale::_Impl::_S_facet_categories[] =
|
|
{
|
|
// Order must match the decl order in class locale.
|
|
locale::_Impl::_S_id_ctype,
|
|
locale::_Impl::_S_id_numeric,
|
|
locale::_Impl::_S_id_collate,
|
|
locale::_Impl::_S_id_time,
|
|
locale::_Impl::_S_id_monetary,
|
|
locale::_Impl::_S_id_messages,
|
|
0
|
|
};
|
|
|
|
locale::~locale() throw()
|
|
{ _M_impl->_M_remove_reference(); }
|
|
|
|
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;
|
|
}
|
|
}
|
|
|
|
locale::locale() throw()
|
|
{
|
|
_S_initialize();
|
|
(_M_impl = _S_global)->_M_add_reference();
|
|
} // XXX MT
|
|
|
|
locale::locale(const locale& __other) throw()
|
|
{ (_M_impl = __other._M_impl)->_M_add_reference(); }
|
|
|
|
// This is used to initialize global and classic locales, and
|
|
// assumes that the _Impl objects are constructed correctly.
|
|
locale::locale(_Impl* __ip) throw() : _M_impl(__ip)
|
|
{ }
|
|
|
|
locale::locale(const char* __s)
|
|
{
|
|
if (__s)
|
|
{
|
|
_S_initialize();
|
|
if (strcmp(__s, "C") == 0 || strcmp(__s, "POSIX") == 0)
|
|
(_M_impl = _S_classic)->_M_add_reference();
|
|
else if (strcmp(__s, "") == 0)
|
|
_M_impl = new _Impl(setlocale(LC_ALL, __s), 1);
|
|
else
|
|
_M_impl = new _Impl(__s, 1);
|
|
}
|
|
else
|
|
__throw_runtime_error("attempt to create locale from NULL name");
|
|
}
|
|
|
|
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); }
|
|
|
|
bool
|
|
locale::operator==(const locale& __rhs) const throw()
|
|
{
|
|
string __name = this->name();
|
|
return (_M_impl == __rhs._M_impl
|
|
|| (__name != "*" && __name == __rhs.name()));
|
|
}
|
|
|
|
const locale&
|
|
locale::operator=(const locale& __other) throw()
|
|
{
|
|
__other._M_impl->_M_add_reference();
|
|
_M_impl->_M_remove_reference();
|
|
_M_impl = __other._M_impl;
|
|
return *this;
|
|
}
|
|
|
|
locale
|
|
locale::global(const locale& __other)
|
|
{
|
|
// XXX MT
|
|
_S_initialize();
|
|
_Impl* __old = _S_global;
|
|
__other._M_impl->_M_add_reference();
|
|
_S_global = __other._M_impl;
|
|
if (_S_global->_M_check_same_name() && _S_global->_M_names[0] != "*")
|
|
setlocale(LC_ALL, __other.name().c_str());
|
|
|
|
// Reference count sanity check: one reference removed for the
|
|
// subsition of __other locale, one added by return-by-value. Net
|
|
// difference: zero. When the returned locale object's destrutor
|
|
// is called, then the reference count is decremented and possibly
|
|
// destroyed.
|
|
return locale(__old);
|
|
}
|
|
|
|
string
|
|
locale::name() const
|
|
{
|
|
string __ret;
|
|
// Need some kind of separator character. This one was pretty much
|
|
// arbitrarily chosen as to not conflict with glibc locales: the
|
|
// exact formatting is not set in stone.
|
|
const char __separator = '|';
|
|
|
|
if (_M_impl->_M_check_same_name())
|
|
__ret = _M_impl->_M_names[0];
|
|
else
|
|
{
|
|
for (size_t i = 0; i < _S_num_categories; ++i)
|
|
__ret += __separator + _M_impl->_M_names[i];
|
|
}
|
|
return __ret;
|
|
}
|
|
|
|
locale const&
|
|
locale::classic()
|
|
{
|
|
// XXX MT
|
|
if (!_S_classic)
|
|
{
|
|
try
|
|
{
|
|
// 26 Standard facets, 2 references.
|
|
// One reference for _M_classic, one for _M_global
|
|
_S_classic = new (&locale_impl_c) _Impl("C", 2);
|
|
_S_global = _S_classic;
|
|
new (&locale_c) locale(_S_classic);
|
|
}
|
|
catch(...)
|
|
{
|
|
// Just call destructor, so that locale_impl_c's memory is
|
|
// not deallocated via a call to delete.
|
|
if (_S_classic)
|
|
_S_classic->~_Impl();
|
|
_S_classic = _S_global = 0;
|
|
__throw_exception_again;
|
|
}
|
|
}
|
|
return locale_c;
|
|
}
|
|
|
|
locale::category
|
|
locale::_S_normalize_category(category __cat)
|
|
{
|
|
int __ret = 0;
|
|
if (__cat == none || (__cat & all) && !(__cat & ~all))
|
|
__ret = __cat;
|
|
else
|
|
{
|
|
// NB: May be a C-style "LC_ALL" category; convert.
|
|
switch (__cat)
|
|
{
|
|
case LC_COLLATE:
|
|
__ret = collate;
|
|
break;
|
|
case LC_CTYPE:
|
|
__ret = ctype;
|
|
break;
|
|
case LC_MONETARY:
|
|
__ret = monetary;
|
|
break;
|
|
case LC_NUMERIC:
|
|
__ret = numeric;
|
|
break;
|
|
case LC_TIME:
|
|
__ret = time;
|
|
break;
|
|
#ifdef _GLIBCPP_HAVE_LC_MESSAGES
|
|
case LC_MESSAGES:
|
|
__ret = messages;
|
|
break;
|
|
#endif
|
|
case LC_ALL:
|
|
__ret = all;
|
|
break;
|
|
default:
|
|
__throw_runtime_error("bad locale category");
|
|
}
|
|
}
|
|
return __ret;
|
|
}
|
|
|
|
__c_locale
|
|
locale::facet::_S_c_locale;
|
|
|
|
locale::facet::
|
|
~facet() { }
|
|
|
|
locale::facet::
|
|
facet(size_t __refs) throw() : _M_references(__refs)
|
|
{
|
|
if (!_S_c_locale)
|
|
_S_create_c_locale(_S_c_locale, "C");
|
|
}
|
|
|
|
void
|
|
locale::facet::
|
|
_M_add_reference() throw()
|
|
{ ++_M_references; } // XXX MT
|
|
|
|
void
|
|
locale::facet::
|
|
_M_remove_reference() throw()
|
|
{
|
|
if (_M_references-- == 0)
|
|
{
|
|
try
|
|
{ delete this; }
|
|
catch (...)
|
|
{ }
|
|
}
|
|
}
|
|
|
|
locale::id::id() { }
|
|
|
|
// Definitions for static const data members of ctype_base.
|
|
const ctype_base::mask ctype_base::space;
|
|
const ctype_base::mask ctype_base::print;
|
|
const ctype_base::mask ctype_base::cntrl;
|
|
const ctype_base::mask ctype_base::upper;
|
|
const ctype_base::mask ctype_base::lower;
|
|
const ctype_base::mask ctype_base::alpha;
|
|
const ctype_base::mask ctype_base::digit;
|
|
const ctype_base::mask ctype_base::punct;
|
|
const ctype_base::mask ctype_base::xdigit;
|
|
const ctype_base::mask ctype_base::alnum;
|
|
const ctype_base::mask ctype_base::graph;
|
|
|
|
// Platform-specific initialization code for ctype tables.
|
|
#include <bits/ctype_noninline.h>
|
|
|
|
const size_t ctype<char>::table_size;
|
|
|
|
ctype<char>::~ctype()
|
|
{
|
|
if (_M_c_locale_ctype)
|
|
_S_destroy_c_locale(_M_c_locale_ctype);
|
|
if (_M_del)
|
|
delete[] this->table();
|
|
}
|
|
|
|
// These are dummy placeholders as these virtual functions are never called.
|
|
bool
|
|
ctype<char>::do_is(mask, char_type) const
|
|
{ return false; }
|
|
|
|
const char*
|
|
ctype<char>::do_is(const char_type* __c, const char_type*, mask*) const
|
|
{ return __c; }
|
|
|
|
const char*
|
|
ctype<char>::do_scan_is(mask, const char_type* __c, const char_type*) const
|
|
{ return __c; }
|
|
|
|
const char*
|
|
ctype<char>::do_scan_not(mask, const char_type* __c, const char_type*) const
|
|
{ return __c; }
|
|
|
|
char
|
|
ctype<char>::do_widen(char __c) const
|
|
{ return __c; }
|
|
|
|
const char*
|
|
ctype<char>::do_widen(const char* __lo, const char* __hi, char* __dest) const
|
|
{
|
|
memcpy(__dest, __lo, __hi - __lo);
|
|
return __hi;
|
|
}
|
|
|
|
char
|
|
ctype<char>::do_narrow(char __c, char /*__dfault*/) const
|
|
{ return __c; }
|
|
|
|
const char*
|
|
ctype<char>::do_narrow(const char* __lo, const char* __hi,
|
|
char /*__dfault*/, char* __dest) const
|
|
{
|
|
memcpy(__dest, __lo, __hi - __lo);
|
|
return __hi;
|
|
}
|
|
|
|
#ifdef _GLIBCPP_USE_WCHAR_T
|
|
ctype<wchar_t>::ctype(size_t __refs)
|
|
: __ctype_abstract_base<wchar_t>(__refs)
|
|
{ _M_c_locale_ctype = _S_clone_c_locale(_S_c_locale); }
|
|
|
|
ctype<wchar_t>::ctype(__c_locale __cloc, size_t __refs)
|
|
: __ctype_abstract_base<wchar_t>(__refs)
|
|
{ _M_c_locale_ctype = _S_clone_c_locale(__cloc); }
|
|
|
|
ctype<wchar_t>::~ctype()
|
|
{ _S_destroy_c_locale(_M_c_locale_ctype); }
|
|
|
|
template<>
|
|
ctype_byname<wchar_t>::ctype_byname(const char* __s, size_t __refs)
|
|
: ctype<wchar_t>(__refs)
|
|
{
|
|
_S_destroy_c_locale(_M_c_locale_ctype);
|
|
_S_create_c_locale(_M_c_locale_ctype, __s);
|
|
}
|
|
#endif
|
|
|
|
// Definitions for static const data members of time_base
|
|
template<>
|
|
const char*
|
|
__timepunct<char>::_S_timezones[14] =
|
|
{
|
|
"GMT", "HST", "AKST", "PST", "MST", "CST", "EST", "AST", "NST", "CET",
|
|
"IST", "EET", "CST", "JST"
|
|
};
|
|
|
|
#ifdef _GLIBCPP_USE_WCHAR_T
|
|
template<>
|
|
const wchar_t*
|
|
__timepunct<wchar_t>::_S_timezones[14] =
|
|
{
|
|
L"GMT", L"HST", L"AKST", L"PST", L"MST", L"CST", L"EST", L"AST",
|
|
L"NST", L"CET", L"IST", L"EET", L"CST", L"JST"
|
|
};
|
|
#endif
|
|
|
|
// Definitions for static const data members of money_base
|
|
const money_base::pattern
|
|
money_base::_S_default_pattern = { {symbol, sign, none, value} };
|
|
|
|
template<>
|
|
const ctype<char>&
|
|
use_facet<ctype<char> >(const locale& __loc)
|
|
{
|
|
size_t __i = ctype<char>::id._M_index;
|
|
const locale::_Impl* __tmp = __loc._M_impl;
|
|
return static_cast<const ctype<char>&>(* (*(__tmp->_M_facets))[__i]);
|
|
}
|
|
|
|
#ifdef _GLIBCPP_USE_WCHAR_T
|
|
template<>
|
|
const ctype<wchar_t>&
|
|
use_facet<ctype<wchar_t> >(const locale& __loc)
|
|
{
|
|
size_t __i = ctype<wchar_t>::id._M_index;
|
|
const locale::_Impl* __tmp = __loc._M_impl;
|
|
return static_cast<const ctype<wchar_t>&>(* (*(__tmp->_M_facets))[__i]);
|
|
}
|
|
#endif
|
|
|
|
|
|
const char __num_base::_S_atoms[] = "0123456789eEabcdfABCDF";
|
|
|
|
const double __num_base::_S_scale_hex = log(10.0)/log(16.0);
|
|
|
|
const double __num_base::_S_scale_oct = log(10.0)/log(8.0);
|
|
|
|
bool
|
|
__num_base::_S_format_float(const ios_base& __io, char* __fptr, char __mod,
|
|
streamsize __prec)
|
|
{
|
|
bool __incl_prec = false;
|
|
ios_base::fmtflags __flags = __io.flags();
|
|
*__fptr++ = '%';
|
|
// [22.2.2.2.2] Table 60
|
|
if (__flags & ios_base::showpos)
|
|
*__fptr++ = '+';
|
|
if (__flags & ios_base::showpoint)
|
|
*__fptr++ = '#';
|
|
// As per [22.2.2.2.2.11]
|
|
if (__flags & ios_base::fixed || __prec > 0)
|
|
{
|
|
*__fptr++ = '.';
|
|
*__fptr++ = '*';
|
|
__incl_prec = true;
|
|
}
|
|
if (__mod)
|
|
*__fptr++ = __mod;
|
|
ios_base::fmtflags __fltfield = __flags & ios_base::floatfield;
|
|
// [22.2.2.2.2] Table 58
|
|
if (__fltfield == ios_base::fixed)
|
|
*__fptr++ = 'f';
|
|
else if (__fltfield == ios_base::scientific)
|
|
*__fptr++ = (__flags & ios_base::uppercase) ? 'E' : 'e';
|
|
else
|
|
*__fptr++ = (__flags & ios_base::uppercase) ? 'G' : 'g';
|
|
*__fptr = '\0';
|
|
return __incl_prec;
|
|
}
|
|
|
|
void
|
|
__num_base::_S_format_int(const ios_base& __io, char* __fptr, char __mod,
|
|
char __modl)
|
|
{
|
|
ios_base::fmtflags __flags = __io.flags();
|
|
*__fptr++ = '%';
|
|
// [22.2.2.2.2] Table 60
|
|
if (__flags & ios_base::showpos)
|
|
*__fptr++ = '+';
|
|
if (__flags & ios_base::showbase)
|
|
*__fptr++ = '#';
|
|
*__fptr++ = 'l';
|
|
|
|
// For long long types.
|
|
if (__modl)
|
|
*__fptr++ = __modl;
|
|
|
|
ios_base::fmtflags __bsefield = __flags & ios_base::basefield;
|
|
if (__bsefield == ios_base::hex)
|
|
*__fptr++ = (__flags & ios_base::uppercase) ? 'X' : 'x';
|
|
else if (__bsefield == ios_base::oct)
|
|
*__fptr++ = 'o';
|
|
else
|
|
*__fptr++ = __mod;
|
|
*__fptr = '\0';
|
|
}
|
|
|
|
template<>
|
|
moneypunct_byname<char, false>::moneypunct_byname(const char*,
|
|
size_t __refs)
|
|
: moneypunct<char, false>(__refs) { }
|
|
|
|
template<>
|
|
moneypunct_byname<char, true>::moneypunct_byname(const char*,
|
|
size_t __refs)
|
|
: moneypunct<char, true>(__refs) { }
|
|
} // namespace std
|