348 lines
11 KiB
C++
348 lines
11 KiB
C++
#ifndef __CODECVT_H
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#define __CODECVT_H
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#pragma option push -b -a8 -pc -Vx- -Ve- -w-inl -w-aus -w-sig
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// -*- C++ -*-
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/***************************************************************************
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*
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* codecvt - Declarations for the Standard Library code conversion facet
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*
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***************************************************************************
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*
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* Copyright (c) 1994-1999 Rogue Wave Software, Inc. All Rights Reserved.
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*
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* This computer software is owned by Rogue Wave Software, Inc. and is
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* protected by U.S. copyright laws and other laws and by international
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* treaties. This computer software is furnished by Rogue Wave Software,
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* Inc. pursuant to a written license agreement and may be used, copied,
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* transmitted, and stored only in accordance with the terms of such
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* license and with the inclusion of the above copyright notice. This
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* computer software or any other copies thereof may not be provided or
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* otherwise made available to any other person.
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*
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* U.S. Government Restricted Rights. This computer software is provided
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* with Restricted Rights. Use, duplication, or disclosure by the
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* Government is subject to restrictions as set forth in subparagraph (c)
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* (1) (ii) of The Rights in Technical Data and Computer Software clause
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* at DFARS 252.227-7013 or subparagraphs (c) (1) and (2) of the
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* Commercial Computer Software – Restricted Rights at 48 CFR 52.227-19,
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* as applicable. Manufacturer is Rogue Wave Software, Inc., 5500
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* Flatiron Parkway, Boulder, Colorado 80301 USA.
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*
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**************************************************************************/
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#ifndef __STD_CODECVT__
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#define __STD_CODECVT__
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#ifndef __STD_RWLOCALE__
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#include <rw/rwlocale>
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#endif
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#ifndef __STD_LIMITS
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#include <limits>
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#endif
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#ifndef _RWSTD_NO_NAMESPACE
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namespace std {
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#endif
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class _RWSTDExport codecvt_base {
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public:
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enum result { ok, partial, error, noconv };
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};
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// ------------------------------------------------------
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// Codeset conversion facet -- codecvt<fromT,toT,stateT>.
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// ------------------------------------------------------
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_RWSTD_TEMPLATE
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class _RWSTDExport codecvt<char,char,mbstate_t>:
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public locale::facet, public codecvt_base
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{
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public:
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typedef char extern_type;
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typedef char intern_type;
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typedef mbstate_t state_type;
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_EXPLICIT codecvt (size_t refs=0):
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locale::facet(refs,locale::__rw_ctype_category) { }
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result out (mbstate_t& state,
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const char* from, const char* from_end, const char*& from_next,
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char* to, char* to_limit, char*& to_next) const
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{ return do_out(state,from,from_end,from_next,to,to_limit,to_next); }
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result unshift (mbstate_t& state,
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char* to, char* to_limit, char*& to_next) const
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{ return do_unshift(state,to,to_limit,to_next); }
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result in(mbstate_t& state,
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const char* from, const char* from_end, const char*& from_next,
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char* to, char* to_limit, char*& to_next) const
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{ return do_in(state,from,from_end,from_next,to,to_limit,to_next); }
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int encoding() const _RWSTD_THROW_SPEC_NULL
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{ return do_encoding(); }
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bool always_noconv() const _RWSTD_THROW_SPEC_NULL
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{ return do_always_noconv(); }
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int length (const mbstate_t& state, const char* from, const char* end,
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size_t max) const { return do_length(state,from,end,max); }
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int max_length() const _RWSTD_THROW_SPEC_NULL
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{ return do_max_length(); }
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#if !defined(_MSC_VER) || defined(__BORLANDC__)
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static locale::id _RWSTDExport id;
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#else
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static locale::id id;
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#endif
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// Rogue Wave extension:
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typedef string internal_string_type;
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typedef string external_string_type;
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internal_string_type in (const external_string_type &s) const { return s; }
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external_string_type out (const internal_string_type &s) const { return s; }
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// Implementation:
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enum { __facet_cat = locale::__rw_ctype_category, __ok_implicit = 1 };
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protected:
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virtual ~codecvt();
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virtual result do_out(mbstate_t& state,
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const char* from, const char* from_end, const char*& from_next,
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char* to, char* to_limit, char*& to_next) const;
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virtual result do_in(mbstate_t& state,
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const char* from, const char* from_end, const char*& from_next,
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char* to, char* to_limit, char*& to_next) const;
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virtual result do_unshift(mbstate_t& state,
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char* to, char* to_limit, char*& to_next) const;
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virtual int do_encoding() const _RWSTD_THROW_SPEC_NULL;
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virtual bool do_always_noconv() const _RWSTD_THROW_SPEC_NULL;
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virtual int do_length (const mbstate_t&, const char* from, const char* end,
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size_t max) const;
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virtual int do_max_length() const _RWSTD_THROW_SPEC_NULL;
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private:
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#ifdef _RWSTD_NO_MEMBER_TEMPLATES
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locale::id &__get_id (void) const { return id; }
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#endif
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};
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#ifndef _RWSTD_NO_WIDE_CHAR
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_RWSTD_TEMPLATE
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class _RWSTDExport codecvt<wchar_t,char,mbstate_t>:
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public locale::facet, public codecvt_base
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{
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public:
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typedef wchar_t intern_type;
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typedef char extern_type;
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typedef mbstate_t state_type;
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_EXPLICIT codecvt (size_t refs=0):
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locale::facet(refs,locale::__rw_ctype_category) { }
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result out (mbstate_t& state,
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const wchar_t* from, const wchar_t* from_end, const wchar_t*& from_next,
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char* to, char* to_limit, char*& to_next) const
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{ return do_out(state,from,from_end,from_next,to,to_limit,to_next); }
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result unshift (mbstate_t& state,
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char* to, char* to_limit, char*& to_next) const
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{ return do_unshift(state,to,to_limit,to_next); }
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result in (mbstate_t& state,
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const char* from, const char* from_end, const char*& from_next,
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wchar_t* to, wchar_t* to_limit, wchar_t*& to_next) const
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{ return do_in(state,from,from_end,from_next,to,to_limit,to_next); }
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int encoding() const _RWSTD_THROW_SPEC_NULL
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{ return do_encoding(); }
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bool always_noconv() const _RWSTD_THROW_SPEC_NULL
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{ return do_always_noconv(); }
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int length (const mbstate_t& state, const char* from, const char* end,
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size_t max) const
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{ return do_length(state,from,end,max); }
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int max_length() const _RWSTD_THROW_SPEC_NULL
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{ return do_max_length(); }
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#if !defined(_MSC_VER) || defined(__BORLANDC__)
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static locale::id _RWSTDExport id;
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#else
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static locale::id id;
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#endif
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// Rogue Wave extension:
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typedef string external_string_type;
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typedef wstring internal_string_type;
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internal_string_type in (const external_string_type &s) const;
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external_string_type out (const internal_string_type &s) const;
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// Implementation:
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enum { __facet_cat = locale::__rw_ctype_category, __ok_implicit = 1 };
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protected:
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virtual ~codecvt();
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virtual result do_out (mbstate_t& state,
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const wchar_t* from, const wchar_t* from_end, const wchar_t*& from_next,
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char* to, char* to_limit, char*& to_next) const;
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virtual result do_in (mbstate_t& state,
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const char* from, const char* from_end, const char*& from_next,
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wchar_t* to, wchar_t* to_limit, wchar_t*& to_next) const;
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virtual result do_unshift (mbstate_t& state,
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char* to, char* to_limit, char*& to_next) const;
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virtual bool do_always_noconv() const _RWSTD_THROW_SPEC_NULL;
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virtual int do_encoding() const _RWSTD_THROW_SPEC_NULL;
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virtual int do_length (const mbstate_t&, const char* from,
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const char* end, size_t max) const;
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virtual int do_max_length() const _RWSTD_THROW_SPEC_NULL;
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private:
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#ifdef _RWSTD_NO_MEMBER_TEMPLATES
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locale::id &__get_id (void) const { return id; }
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#endif
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};
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#endif // _RWSTD_NO_WIDE_CHAR
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template <class internT, class externT, class stateT>
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class _RWSTDExportTemplate codecvt: public locale::facet, public codecvt_base {
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public:
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typedef internT intern_type;
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typedef externT extern_type;
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typedef stateT state_type;
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_EXPLICIT codecvt (size_t refs=0): locale::facet(refs) { }
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result out (stateT& state,
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const internT* from, const internT* from_end, const internT*& from_next,
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externT* to, externT* to_limit, externT*& to_next) const
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{ return do_out(state,from,from_end,from_next,to,to_limit,to_next); }
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result unshift (stateT& state,
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externT* to, externT* to_limit, externT*& to_next) const
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{ return do_unshift(state,to,to_limit,to_next); }
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result in (stateT& state,
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const externT* from, const externT* from_end, const externT*& from_next,
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internT* to, internT* to_limit, internT*& to_next) const
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{ return do_in(state,from,from_end,from_next,to,to_limit,to_next); }
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bool always_noconv() const _RWSTD_THROW_SPEC_NULL
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{ return do_always_noconv(); }
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int encoding() const _RWSTD_THROW_SPEC_NULL
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{ return do_encoding(); }
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int length (const stateT& state, const externT* from, const externT* end,
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size_t max) const
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{ return do_length(state,from,end,max); }
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int max_length() const _RWSTD_THROW_SPEC_NULL
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{ return do_max_length(); }
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static locale::id id;
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// Rogue Wave extension:
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typedef basic_string<externT,char_traits<externT>,allocator<externT> >
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external_string_type;
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typedef basic_string<internT,char_traits<internT>,allocator<internT> >
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internal_string_type;
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internal_string_type in (const external_string_type &s) const;
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external_string_type out (const internal_string_type &s) const;
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// Implementation:
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enum { __facet_cat = locale::__rw_ctype_category, __ok_implicit = 1 };
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protected:
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virtual ~codecvt();
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virtual result do_out (stateT& state,
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const internT* from, const internT* from_end, const internT*& from_next,
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externT* to, externT* to_limit, externT*& to_next) const;
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virtual result do_in (stateT& state,
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const externT* from, const externT* from_end, const externT*& from_next,
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internT* to, internT* to_limit, internT*& to_next) const;
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virtual result do_unshift (stateT& state,
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externT* to, externT* to_limit, externT*& to_next) const;
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virtual int do_encoding() const _RWSTD_THROW_SPEC_NULL;
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virtual bool do_always_noconv() const _RWSTD_THROW_SPEC_NULL;
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virtual int do_length (const stateT&, const externT* from, const externT* end,
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size_t max) const;
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virtual int do_max_length() const _RWSTD_THROW_SPEC_NULL;
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private:
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#ifdef _RWSTD_NO_MEMBER_TEMPLATES
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locale::id &__get_id (void) const { return id; }
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#endif
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};
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template <class internT, class externT, class stateT>
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class codecvt_byname: public codecvt<internT,externT,stateT> {
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public:
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typedef internT intern_type;
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typedef externT extern_type;
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typedef stateT state_type;
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_EXPLICIT codecvt_byname (const char*, size_t refs=0);
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protected:
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virtual ~codecvt_byname();
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virtual codecvt_base::result do_out (stateT&,
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const internT*, const internT*, const internT*&,
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externT*, externT*, externT*&) const;
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virtual codecvt_base::result do_in (stateT&,
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const externT*, const externT*, const externT*&,
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internT*, internT*, internT*&) const;
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virtual codecvt_base::result do_unshift (stateT&,
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externT*, externT*, externT*&) const;
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virtual int do_encoding () const _RWSTD_THROW_SPEC_NULL;
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virtual bool do_always_noconv () const _RWSTD_THROW_SPEC_NULL;
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// Virtual member functions inherited from codecvt<,,>:
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// virtual int do_length (const stateT &state, const externT* from,
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// const externT* end, size_t max) const;
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// virtual int do_max_length() const _RWSTD_THROW_SPEC_NULL;
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};
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#ifndef _RWSTD_NO_NAMESPACE
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}
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#endif
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#ifdef _RWSTD_COMPILE_INSTANTIATE
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#include <rw/codecvt.cc>
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#endif
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#endif // __STD_CODECVT__
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#pragma option pop
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#endif /* __CODECVT_H */
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