mirror of
git://gcc.gnu.org/git/gcc.git
synced 2024-12-25 04:08:59 +08:00
b2dad0e372
2000-04-21 Benjamin Kosnik <bkoz@redhat.com> * libstdc++-v3: New directory. From-SVN: r33317
498 lines
13 KiB
C++
498 lines
13 KiB
C++
// Locale support -*- C++ -*-
|
|
|
|
// Copyright (C) 1997-2000 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
|
|
//
|
|
|
|
#ifndef _CPP_BITS_LOCCORE_H
|
|
#define _CPP_BITS_LOCCORE_H 1
|
|
|
|
#include <bits/c++config.h>
|
|
#include <bits/std_climits.h> // For CHAR_BIT
|
|
#include <bits/std_string.h> // For string
|
|
#include <bits/std_cctype.h> // For isspace, etc.
|
|
|
|
namespace std
|
|
{
|
|
|
|
// _Count_ones: compile-time computation of number of 1-bits in a value N
|
|
// This takes only 5 (or 6) instantiations, doing recursive descent
|
|
// in parallel -- ncm
|
|
template<unsigned _Num, int _Shift = (sizeof(unsigned) * CHAR_BIT)/2,
|
|
unsigned _Mask = (~0u >> _Shift) >
|
|
struct _Count_ones;
|
|
|
|
template<unsigned _Num, unsigned _Mask>
|
|
struct _Count_ones<_Num,0,_Mask>
|
|
{ static const unsigned _S_count = _Num; };
|
|
|
|
template<unsigned _Num, int _Shift, unsigned _Mask>
|
|
struct _Count_ones
|
|
{
|
|
static const unsigned _S_halfcount =
|
|
_Count_ones<_Num, _Shift/2, (_Mask^((~_Mask)>>(_Shift/2))) >::_S_count;
|
|
static const unsigned _S_count
|
|
= (_S_halfcount&_Mask) + ((_S_halfcount>>_Shift)&_Mask);
|
|
};
|
|
|
|
// 22.1.1 Locale
|
|
template<typename _Tp> class allocator;
|
|
template<typename _Tp, typename _Alloc> class vector;
|
|
class locale;
|
|
|
|
template<typename _Facet>
|
|
const _Facet&
|
|
use_facet(const locale&);
|
|
|
|
template<typename _Facet>
|
|
bool
|
|
has_facet(const locale&) throw();
|
|
|
|
// 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 locfacets.h.
|
|
|
|
class codecvt_base;
|
|
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;
|
|
template<> class codecvt_byname<char, char, mbstate_t>;
|
|
#ifdef _GLIBCPP_USE_WCHAR_T
|
|
template<> class codecvt_byname<wchar_t, char, mbstate_t>;
|
|
#endif
|
|
|
|
// 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<> class collate<char>;
|
|
#ifdef _GLIBCPP_USE_WCHAR_T
|
|
template<> class collate<wchar_t>;
|
|
#endif
|
|
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
|
|
{
|
|
// Forwrd decls and friends:
|
|
class _Impl;
|
|
friend _Impl;
|
|
|
|
template<typename _Facet>
|
|
friend const _Facet&
|
|
use_facet(const locale&);
|
|
|
|
template<typename _Facet>
|
|
friend bool
|
|
has_facet(const locale&) throw();
|
|
|
|
public:
|
|
// Types:
|
|
class facet;
|
|
class id;
|
|
typedef int category;
|
|
|
|
// Category values:
|
|
// NB much depends on the order in which these appear:
|
|
static const category none = 0;
|
|
static const category collate = 0x0100;
|
|
static const category ctype = 0x0200;
|
|
static const category monetary = 0x0400;
|
|
static const category numeric = 0x0800;
|
|
static const category time = 0x1000;
|
|
static const category messages = 0x2000;
|
|
static const category all = (collate | ctype | monetary |
|
|
numeric | time | messages);
|
|
|
|
// Construct/copy/destroy:
|
|
inline
|
|
locale() throw();
|
|
|
|
inline
|
|
locale(const locale& __other) throw();
|
|
|
|
explicit
|
|
locale(const char* __std_name);
|
|
|
|
locale(const locale& __other, const char* __std_name, category __cats);
|
|
|
|
locale(const locale& __other, const locale& __one, category __cats);
|
|
|
|
template<typename _Facet>
|
|
locale(const locale& __other, _Facet* __f);
|
|
|
|
inline
|
|
~locale() throw();
|
|
|
|
const locale&
|
|
operator=(const locale& __other) throw();
|
|
|
|
template<typename _Facet>
|
|
locale
|
|
combine(const locale& __other);
|
|
|
|
// Locale operations:
|
|
string
|
|
name() const;
|
|
|
|
bool
|
|
operator==(const locale& __other) const throw ();
|
|
|
|
inline bool
|
|
operator!=(const locale& __other) const throw ()
|
|
{ return !(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:
|
|
_Impl* _M_impl; // The (shared) implementation
|
|
|
|
static _Impl* _S_classic; // The one true C reference locale
|
|
static _Impl* _S_global; // Current global reference locale
|
|
|
|
explicit
|
|
locale(_Impl*) throw();
|
|
|
|
static inline void
|
|
_S_initialize()
|
|
{ if (!_S_classic) classic(); }
|
|
|
|
static int
|
|
_S_normalize_category(int);
|
|
|
|
static const int
|
|
_S_num_categories = _Count_ones<all>::_S_count;
|
|
};
|
|
|
|
|
|
// locale implementation object
|
|
class locale::_Impl
|
|
{
|
|
typedef vector<facet*, allocator<facet*> > __vec_facet;
|
|
typedef vector<string, allocator<string> > __vec_string;
|
|
|
|
// Friends:
|
|
friend class locale;
|
|
friend class facet;
|
|
|
|
template<typename _Facet>
|
|
friend const _Facet&
|
|
use_facet(const locale&);
|
|
|
|
template<typename _Facet>
|
|
friend bool
|
|
has_facet(const locale&) throw();
|
|
|
|
size_t _M_num_references;
|
|
__vec_facet* _M_facets;
|
|
__vec_string* _M_category_names;
|
|
bool _M_has_name;
|
|
bool _M_cached_name_ok;
|
|
string _M_cached_name;
|
|
|
|
inline void
|
|
_M_add_reference() throw()
|
|
{ ++_M_num_references; } // XXX MT
|
|
|
|
inline void
|
|
_M_remove_reference() throw()
|
|
{
|
|
if (_M_num_references-- == 0) // XXX MT
|
|
{
|
|
try {
|
|
delete this;
|
|
}
|
|
catch(...) {
|
|
}
|
|
}
|
|
}
|
|
|
|
_Impl(const _Impl&, size_t __refs);
|
|
_Impl(const _Impl&, const string&, category, size_t __refs);
|
|
_Impl(size_t __facets, size_t __refs);
|
|
~_Impl() throw();
|
|
|
|
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); }
|
|
|
|
void
|
|
_M_construct_collate(const char*);
|
|
|
|
void
|
|
_M_construct_ctype(const char*);
|
|
|
|
void
|
|
_M_construct_monetary(const char*);
|
|
|
|
void
|
|
_M_construct_numeric(const char*);
|
|
|
|
void
|
|
_M_construct_time(const char*);
|
|
|
|
void
|
|
_M_construct_messages(const char*);
|
|
|
|
category
|
|
_M_normalize_category_names(const string&, category __cats);
|
|
|
|
static const locale::id* const _S_id_collate[];
|
|
static const locale::id* const _S_id_ctype[];
|
|
static const locale::id* const _S_id_monetary[];
|
|
static const locale::id* const _S_id_numeric[];
|
|
static const locale::id* const _S_id_time[];
|
|
static const locale::id* const _S_id_messages[];
|
|
static const locale::id* const* const _S_facet_categories[];
|
|
};
|
|
|
|
// class locale inlines, that need declaration of locale::_Imp
|
|
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(); }
|
|
|
|
template<typename _Facet>
|
|
locale::locale(const locale& __other, _Facet* __f)
|
|
{
|
|
_M_impl = new _Impl(*__other._M_impl, 0);
|
|
_M_impl->_M_install_facet(&_Facet::id, __f);
|
|
_M_impl->_M_has_name = false;
|
|
}
|
|
|
|
locale::~locale() throw()
|
|
{ _M_impl->_M_remove_reference(); }
|
|
|
|
// 22.1.1.1.2 Class locale::facet
|
|
class locale::facet
|
|
{
|
|
friend class locale;
|
|
friend class locale::_Impl;
|
|
|
|
protected:
|
|
explicit
|
|
facet(size_t __refs = 0) throw();
|
|
|
|
virtual
|
|
~facet() {};
|
|
|
|
private:
|
|
size_t _M_num_references;
|
|
|
|
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
|
|
{
|
|
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 ();
|
|
public:
|
|
id() {};
|
|
private:
|
|
// 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;
|
|
static size_t _S_highwater; // last id number assigned
|
|
|
|
void
|
|
operator=(const id&); // not defined
|
|
|
|
id(const id&); // not defined
|
|
};
|
|
|
|
template<typename _Facet>
|
|
const _Facet&
|
|
use_facet(const locale& __loc);
|
|
|
|
template<typename _Facet>
|
|
bool
|
|
has_facet(const locale& __loc) throw();
|
|
|
|
} // namespace std
|
|
|
|
#endif /* _CPP_BITS_LOCCORE_H */
|
|
|
|
// Local Variables:
|
|
// mode:c++
|
|
// End:
|
|
|