475 lines
12 KiB
C++
475 lines
12 KiB
C++
// Locale support -*- C++ -*-
|
|
|
|
// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002
|
|
// 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.
|
|
|
|
//
|
|
// ISO C++ 14882: 22.1 Locales
|
|
//
|
|
|
|
/** @file localefwd.h
|
|
* This is an internal header file, included by other library headers.
|
|
* You should not attempt to use it directly.
|
|
*/
|
|
|
|
#ifndef _CPP_BITS_LOCCORE_H
|
|
#define _CPP_BITS_LOCCORE_H 1
|
|
|
|
#pragma GCC system_header
|
|
|
|
#include <bits/c++config.h>
|
|
#include <bits/c++locale.h> // Defines __c_locale, config-specific includes
|
|
#include <climits> // For CHAR_BIT
|
|
#include <cctype> // For isspace, etc.
|
|
#include <string> // For string
|
|
#include <bits/functexcept.h>
|
|
|
|
#include <bits/atomicity.h>
|
|
|
|
namespace std
|
|
{
|
|
// NB: Don't instantiate required wchar_t facets if no wchar_t support.
|
|
#ifdef _GLIBCPP_USE_WCHAR_T
|
|
# define _GLIBCPP_NUM_FACETS 28
|
|
#else
|
|
# define _GLIBCPP_NUM_FACETS 14
|
|
#endif
|
|
|
|
// 22.1.1 Locale
|
|
template<typename _Tp, typename _Alloc>
|
|
class vector;
|
|
class locale;
|
|
|
|
// 22.1.3 Convenience interfaces
|
|
template<typename _CharT>
|
|
inline bool
|
|
isspace(_CharT, const locale&);
|
|
|
|
template<typename _CharT>
|
|
inline bool
|
|
isprint(_CharT, const locale&);
|
|
|
|
template<typename _CharT>
|
|
inline bool
|
|
iscntrl(_CharT, const locale&);
|
|
|
|
template<typename _CharT>
|
|
inline bool
|
|
isupper(_CharT, const locale&);
|
|
|
|
template<typename _CharT>
|
|
inline bool
|
|
islower(_CharT, const locale&);
|
|
|
|
template<typename _CharT>
|
|
inline bool
|
|
isalpha(_CharT, const locale&);
|
|
|
|
template<typename _CharT>
|
|
inline bool
|
|
isdigit(_CharT, const locale&);
|
|
|
|
template<typename _CharT>
|
|
inline bool
|
|
ispunct(_CharT, const locale&);
|
|
|
|
template<typename _CharT>
|
|
inline bool
|
|
isxdigit(_CharT, const locale&);
|
|
|
|
template<typename _CharT>
|
|
inline bool
|
|
isalnum(_CharT, const locale&);
|
|
|
|
template<typename _CharT>
|
|
inline bool
|
|
isgraph(_CharT, const locale&);
|
|
|
|
template<typename _CharT>
|
|
inline _CharT
|
|
toupper(_CharT, const locale&);
|
|
|
|
template<typename _CharT>
|
|
inline _CharT
|
|
tolower(_CharT, const locale&);
|
|
|
|
|
|
// 22.2.1 and 22.2.1.3 ctype
|
|
class ctype_base;
|
|
template<typename _CharT>
|
|
class ctype;
|
|
template<> class ctype<char>;
|
|
#ifdef _GLIBCPP_USE_WCHAR_T
|
|
template<> class ctype<wchar_t>;
|
|
#endif
|
|
template<typename _CharT>
|
|
class ctype_byname;
|
|
// NB: Specialized for char and wchar_t in locale_facets.h.
|
|
|
|
class codecvt_base;
|
|
class __enc_traits;
|
|
template<typename _InternT, typename _ExternT, typename _StateT>
|
|
class codecvt;
|
|
template<> class codecvt<char, char, mbstate_t>;
|
|
#ifdef _GLIBCPP_USE_WCHAR_T
|
|
template<> class codecvt<wchar_t, char, mbstate_t>;
|
|
#endif
|
|
template<typename _InternT, typename _ExternT, typename _StateT>
|
|
class codecvt_byname;
|
|
|
|
// 22.2.2 and 22.2.3 numeric
|
|
template<typename _CharT, typename _InIter = istreambuf_iterator<_CharT> >
|
|
class num_get;
|
|
template<typename _CharT, typename _OutIter = ostreambuf_iterator<_CharT> >
|
|
class num_put;
|
|
template<typename _CharT> class numpunct;
|
|
template<typename _CharT> class numpunct_byname;
|
|
|
|
// 22.2.4 collation
|
|
template<typename _CharT>
|
|
class collate;
|
|
template<typename _CharT> class
|
|
collate_byname;
|
|
|
|
// 22.2.5 date and time
|
|
class time_base;
|
|
template<typename _CharT, typename _InIter = istreambuf_iterator<_CharT> >
|
|
class time_get;
|
|
template<typename _CharT, typename _InIter = istreambuf_iterator<_CharT> >
|
|
class time_get_byname;
|
|
template<typename _CharT, typename _OutIter = ostreambuf_iterator<_CharT> >
|
|
class time_put;
|
|
template<typename _CharT, typename _OutIter = ostreambuf_iterator<_CharT> >
|
|
class time_put_byname;
|
|
|
|
// 22.2.6 money
|
|
class money_base;
|
|
template<typename _CharT, typename _InIter = istreambuf_iterator<_CharT> >
|
|
class money_get;
|
|
template<typename _CharT, typename _OutIter = ostreambuf_iterator<_CharT> >
|
|
class money_put;
|
|
template<typename _CharT, bool _Intl = false>
|
|
class moneypunct;
|
|
template<typename _CharT, bool _Intl = false>
|
|
class moneypunct_byname;
|
|
|
|
// 22.2.7 message retrieval
|
|
class messages_base;
|
|
template<typename _CharT>
|
|
class messages;
|
|
template<typename _CharT>
|
|
class messages_byname;
|
|
|
|
// 22.1.1 Class locale
|
|
class locale
|
|
{
|
|
public:
|
|
// Types:
|
|
typedef unsigned int category;
|
|
|
|
// Forward decls and friends:
|
|
class facet;
|
|
class id;
|
|
class _Impl;
|
|
|
|
friend class facet;
|
|
friend class _Impl;
|
|
|
|
template<typename _Facet>
|
|
friend const _Facet&
|
|
use_facet(const locale&);
|
|
|
|
template<typename _Facet>
|
|
friend bool
|
|
has_facet(const locale&) throw();
|
|
|
|
// Category values:
|
|
// NB: Order must match _S_facet_categories definition in locale.cc
|
|
static const category none = 0;
|
|
static const category ctype = 1L << 0;
|
|
static const category numeric = 1L << 1;
|
|
static const category collate = 1L << 2;
|
|
static const category time = 1L << 3;
|
|
static const category monetary = 1L << 4;
|
|
static const category messages = 1L << 5;
|
|
static const category all = (collate | ctype | monetary |
|
|
numeric | time | messages);
|
|
|
|
// Construct/copy/destroy:
|
|
locale() throw();
|
|
|
|
locale(const locale& __other) throw();
|
|
|
|
explicit
|
|
locale(const char* __std_name);
|
|
|
|
locale(const locale& __base, const char* __s, category __cat);
|
|
|
|
locale(const locale& __base, const locale& __add, category __cat);
|
|
|
|
template<typename _Facet>
|
|
locale(const locale& __other, _Facet* __f);
|
|
|
|
~locale() throw();
|
|
|
|
const locale&
|
|
operator=(const locale& __other) throw();
|
|
|
|
template<typename _Facet>
|
|
locale
|
|
combine(const locale& __other) const;
|
|
|
|
// Locale operations:
|
|
string
|
|
name() const;
|
|
|
|
bool
|
|
operator==(const locale& __other) const throw ();
|
|
|
|
inline bool
|
|
operator!=(const locale& __other) const throw ()
|
|
{ return !(this->operator==(__other)); }
|
|
|
|
template<typename _Char, typename _Traits, typename _Alloc>
|
|
bool
|
|
operator()(const basic_string<_Char, _Traits, _Alloc>& __s1,
|
|
const basic_string<_Char, _Traits, _Alloc>& __s2) const;
|
|
|
|
// Global locale objects:
|
|
static locale
|
|
global(const locale&);
|
|
|
|
static const locale&
|
|
classic();
|
|
|
|
private:
|
|
// The (shared) implementation
|
|
_Impl* _M_impl;
|
|
|
|
// The "C" reference locale
|
|
static _Impl* _S_classic;
|
|
|
|
// Current global reference locale
|
|
static _Impl* _S_global;
|
|
|
|
static const size_t _S_num_categories = 6;
|
|
static const size_t _S_num_facets = _GLIBCPP_NUM_FACETS;
|
|
|
|
explicit
|
|
locale(_Impl*) throw();
|
|
|
|
static inline void
|
|
_S_initialize()
|
|
{
|
|
if (!_S_classic)
|
|
classic();
|
|
}
|
|
|
|
static category
|
|
_S_normalize_category(category);
|
|
|
|
void
|
|
_M_coalesce(const locale& __base, const locale& __add, category __cat);
|
|
};
|
|
|
|
|
|
// Implementation object for locale
|
|
class locale::_Impl
|
|
{
|
|
public:
|
|
// Types.
|
|
typedef vector<facet*, allocator<facet*> > __vec_facet;
|
|
|
|
// Friends.
|
|
friend class locale;
|
|
friend class locale::facet;
|
|
|
|
template<typename _Facet>
|
|
friend const _Facet&
|
|
use_facet(const locale&);
|
|
|
|
template<typename _Facet>
|
|
friend bool
|
|
has_facet(const locale&) throw();
|
|
|
|
private:
|
|
// Data Members.
|
|
_Atomic_word _M_references;
|
|
__vec_facet* _M_facets;
|
|
string _M_names[_S_num_categories];
|
|
static const locale::id* const _S_id_ctype[];
|
|
static const locale::id* const _S_id_numeric[];
|
|
static const locale::id* const _S_id_collate[];
|
|
static const locale::id* const _S_id_time[];
|
|
static const locale::id* const _S_id_monetary[];
|
|
static const locale::id* const _S_id_messages[];
|
|
static const locale::id* const* const _S_facet_categories[];
|
|
|
|
inline void
|
|
_M_add_reference() throw()
|
|
{ __atomic_add(&_M_references, 1); }
|
|
|
|
inline void
|
|
_M_remove_reference() throw()
|
|
{
|
|
if (__exchange_and_add(&_M_references, -1) == 1)
|
|
{
|
|
try
|
|
{ delete this; }
|
|
catch(...)
|
|
{ }
|
|
}
|
|
}
|
|
|
|
_Impl(const _Impl&, size_t);
|
|
_Impl(string __name, size_t);
|
|
~_Impl() throw();
|
|
|
|
inline bool
|
|
_M_check_same_name()
|
|
{
|
|
bool __ret = true;
|
|
for (size_t i = 0; i < _S_num_categories - 1; ++i)
|
|
__ret &= _M_names[i] == _M_names[i + 1];
|
|
return __ret;
|
|
}
|
|
|
|
void
|
|
_M_replace_categories(const _Impl*, category);
|
|
|
|
void
|
|
_M_replace_category(const _Impl*, const locale::id* const*);
|
|
|
|
void
|
|
_M_replace_facet(const _Impl*, const locale::id*);
|
|
|
|
void
|
|
_M_install_facet(const locale::id*, facet*);
|
|
|
|
template<typename _Facet>
|
|
inline void
|
|
_M_init_facet(_Facet* __facet)
|
|
{ _M_install_facet(&_Facet::id, __facet); }
|
|
};
|
|
|
|
template<typename _Facet>
|
|
locale::locale(const locale& __other, _Facet* __f)
|
|
{
|
|
_M_impl = new _Impl(*__other._M_impl, 1);
|
|
_M_impl->_M_install_facet(&_Facet::id, __f);
|
|
for (size_t __i = 0; __i < _S_num_categories; ++__i)
|
|
_M_impl->_M_names[__i] = "*";
|
|
}
|
|
|
|
// 22.1.1.1.2 Class locale::facet
|
|
class locale::facet
|
|
{
|
|
friend class locale;
|
|
friend class locale::_Impl;
|
|
friend class __enc_traits;
|
|
|
|
private:
|
|
_Atomic_word _M_references;
|
|
|
|
protected:
|
|
// Contains data from the underlying "C" library for default "C"
|
|
// or "POSIX" locale.
|
|
static __c_locale _S_c_locale;
|
|
|
|
explicit
|
|
facet(size_t __refs = 0) throw();
|
|
|
|
virtual
|
|
~facet();
|
|
|
|
static void
|
|
_S_create_c_locale(__c_locale& __cloc, const char* __s);
|
|
|
|
static __c_locale
|
|
_S_clone_c_locale(__c_locale& __cloc);
|
|
|
|
static void
|
|
_S_destroy_c_locale(__c_locale& __cloc);
|
|
|
|
private:
|
|
void
|
|
_M_add_reference() throw();
|
|
|
|
void
|
|
_M_remove_reference() throw();
|
|
|
|
facet(const facet&); // Not defined.
|
|
|
|
void
|
|
operator=(const facet&); // Not defined.
|
|
};
|
|
|
|
|
|
// 22.1.1.1.3 Class locale::id
|
|
class locale::id
|
|
{
|
|
private:
|
|
friend class locale;
|
|
friend class locale::_Impl;
|
|
template<typename _Facet>
|
|
friend const _Facet&
|
|
use_facet(const locale&);
|
|
template<typename _Facet>
|
|
friend bool
|
|
has_facet(const locale&) throw ();
|
|
|
|
// NB: There is no accessor for _M_index because it may be used
|
|
// before the constructor is run; the effect of calling a member
|
|
// function (even an inline) would be undefined.
|
|
mutable size_t _M_index;
|
|
|
|
// Last id number assigned
|
|
static _Atomic_word _S_highwater;
|
|
|
|
void
|
|
operator=(const id&); // not defined
|
|
|
|
id(const id&); // not defined
|
|
|
|
public:
|
|
// NB: This class is always a static data member, and thus can be
|
|
// counted on to be zero-initialized.
|
|
id();
|
|
};
|
|
|
|
template<typename _Facet>
|
|
const _Facet&
|
|
use_facet(const locale& __loc);
|
|
|
|
template<typename _Facet>
|
|
bool
|
|
has_facet(const locale& __loc) throw();
|
|
} // namespace std
|
|
|
|
#endif
|