williamr@2: /*
williamr@4:  * Portions Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.
williamr@2:  *
williamr@2:  * Copyright (c) 1999
williamr@2:  * Silicon Graphics Computer Systems, Inc.
williamr@2:  *
williamr@4:  * Copyright (c) 1999
williamr@2:  * Boris Fomitchev
williamr@2:  *
williamr@2:  * This material is provided "as is", with absolutely no warranty expressed
williamr@2:  * or implied. Any use is at your own risk.
williamr@2:  *
williamr@4:  * Permission to use or copy this software for any purpose is hereby granted
williamr@2:  * without fee, provided the above notices are retained on all copies.
williamr@2:  * Permission to modify the code and to distribute modified code is granted,
williamr@2:  * provided the above notices are retained, and a notice that the code was
williamr@2:  * modified is included with the above copyright notice.
williamr@2:  *
williamr@4:  */
williamr@2: // WARNING: This is an internal header file, included by other C++
williamr@2: // standard library headers.  You should not attempt to use this header
williamr@2: // file directly.
williamr@2: 
williamr@2: 
williamr@2: #ifndef _STLP_INTERNAL_CODECVT_H
williamr@2: #define _STLP_INTERNAL_CODECVT_H
williamr@2: 
williamr@4: #ifndef _STLP_C_LOCALE_H
williamr@2: #  include <stl/c_locale.h>
williamr@4: #endif
williamr@4: 
williamr@4: #ifndef _STLP_INTERNAL_LOCALE_H
williamr@2: #  include <stl/_locale.h>
williamr@4: #endif
williamr@4: 
williamr@4: #ifndef _STLP_INTERNAL_ALGOBASE_H
williamr@4: #  include <stl/_algobase.h>
williamr@4: #endif
williamr@2: 
williamr@2: _STLP_BEGIN_NAMESPACE
williamr@2: 
williamr@2: class _STLP_CLASS_DECLSPEC codecvt_base {
williamr@2: public:
williamr@2:   enum result {ok, partial, error, noconv};
williamr@2: };
williamr@2: 
williamr@2: template <class _InternT, class _ExternT, class _StateT>
williamr@2: class codecvt : public locale::facet, public codecvt_base {
williamr@4: public:
williamr@2:   typedef _InternT intern_type;
williamr@2:   typedef _ExternT extern_type;
williamr@2:   typedef _StateT state_type;
williamr@4: 
williamr@4: #if defined (_STLP_MSVC) && (_STLP_MSVC < 1300)
williamr@4:   /* For the moment VC6 do not support this facet default implementation
williamr@4:    * because of the static locale::id instance. When VC6 see this definition
williamr@4:    * it goes crasy with locale::id static instances and all the has_facet tests
williamr@4:    * unit tests are failing.
williamr@4:    */
williamr@2: };
williamr@4: #else
williamr@4:   explicit codecvt(size_t __refs = 0) : locale::facet(__refs) {}
williamr@4: 
williamr@4:   result out(state_type&          __state,
williamr@4:              const intern_type*   __from,
williamr@4:              const intern_type*   __from_end,
williamr@4:              const intern_type*&  __from_next,
williamr@4:              extern_type*         __to,
williamr@4:              extern_type*         __to_limit,
williamr@4:              extern_type*&        __to_next) const {
williamr@4:     return do_out(__state,
williamr@4:                   __from, __from_end, __from_next,
williamr@4:                   __to,   __to_limit, __to_next);
williamr@4:   }
williamr@4: 
williamr@4:   result unshift(state_type&    __state,
williamr@4:                  extern_type*   __to,
williamr@4:                  extern_type*   __to_limit,
williamr@4:                  extern_type*&  __to_next) const {
williamr@4:     return do_unshift(__state, __to, __to_limit, __to_next);
williamr@4:   }
williamr@4: 
williamr@4:   result in(state_type&         __state,
williamr@4:             const extern_type*  __from,
williamr@4:             const extern_type*  __from_end,
williamr@4:             const extern_type*& __from_next,
williamr@4:             intern_type*        __to,
williamr@4:             intern_type*        __to_limit,
williamr@4:             intern_type*&       __to_next) const {
williamr@4:     return do_in(__state,
williamr@4:                  __from, __from_end, __from_next,
williamr@4:                  __to,  __to_limit, __to_next);
williamr@4:   }
williamr@4: 
williamr@4:   int encoding() const _STLP_NOTHROW { return do_encoding(); }
williamr@4: 
williamr@4:   bool always_noconv() const _STLP_NOTHROW { return do_always_noconv(); }
williamr@4: 
williamr@4:   int length(const state_type&  __state,
williamr@4:              const extern_type* __from,
williamr@4:              const extern_type* __end,
williamr@4:              size_t             __max) const {
williamr@4:     return do_length(__state, __from, __end, __max);
williamr@4:   }
williamr@4: 
williamr@4:   int max_length() const _STLP_NOTHROW { return do_max_length(); }
williamr@4: 
williamr@4: #if defined(__SYMBIAN32__WSD__) 
williamr@4:     static _STLP_STATIC_MEMBER_DECLSPEC locale::id& GetFacetLocaleId();
williamr@4: #elif defined (__SYMBIAN32__NO_STATIC_IMPORTS__)    
williamr@4:     static _STLP_STATIC_MEMBER_DECLSPEC locale::id& GetFacetLocaleId();
williamr@4:     static locale::id id;   
williamr@4: #else        
williamr@4:     // NOTE: Symbian doesn't support exporting static data.  
williamr@4:     // Users of this class should use GetFacetLocaleId() to access the data member id    
williamr@4:     static _STLP_STATIC_MEMBER_DECLSPEC locale::id id;
williamr@4: #endif
williamr@4: 
williamr@4:     
williamr@4: protected:
williamr@4:   ~codecvt() {}
williamr@4: 
williamr@4:   virtual result do_out(state_type&,
williamr@4:                         const intern_type*  __from,
williamr@4:                         const intern_type*,
williamr@4:                         const intern_type*& __from_next,
williamr@4:                         extern_type*        __to,
williamr@4:                         extern_type*,
williamr@4:                         extern_type*&       __to_next) const
williamr@4:   { __from_next = __from; __to_next   = __to; return noconv; }
williamr@4: 
williamr@4:   virtual result do_in (state_type&,
williamr@4:                         const extern_type*  __from,
williamr@4:                         const extern_type*,
williamr@4:                         const extern_type*& __from_next,
williamr@4:                         intern_type*        __to,
williamr@4:                         intern_type*,
williamr@4:                         intern_type*&       __to_next) const
williamr@4:   { __from_next = __from; __to_next = __to; return noconv; }
williamr@4: 
williamr@4:   virtual result do_unshift(state_type&,
williamr@4:                             extern_type* __to,
williamr@4:                             extern_type*,
williamr@4:                             extern_type*& __to_next) const
williamr@4:   { __to_next = __to; return noconv; }
williamr@4: 
williamr@4:   virtual int do_encoding() const _STLP_NOTHROW
williamr@4:   { return 1; }
williamr@4: 
williamr@4:   virtual bool do_always_noconv() const _STLP_NOTHROW
williamr@4:   { return true; }
williamr@4: 
williamr@4:   virtual int do_length(const state_type&,
williamr@4:                         const extern_type* __from,
williamr@4:                         const extern_type* __end,
williamr@4:                         size_t __max) const
williamr@4:   { return (int)(min) ( __STATIC_CAST(size_t, (__end - __from)), __max); }
williamr@4: 
williamr@4:   virtual int do_max_length() const _STLP_NOTHROW
williamr@4:   { return 1; }
williamr@4: 
williamr@4: private:
williamr@4:   codecvt(const codecvt<intern_type, extern_type, state_type>&);
williamr@4:   codecvt<intern_type, extern_type, state_type>& operator = (const codecvt<intern_type, extern_type, state_type>&);
williamr@4: };
williamr@4: 
williamr@4: #  if defined (_STLP_EXPOSE_STREAM_IMPLEMENTATION) && !defined (_STLP_LINK_TIME_INSTANTIATION)
williamr@4: #    if (_STLP_STATIC_TEMPLATE_DATA > 0)
williamr@4: #      if !defined (__BORLANDC__) && !defined(__SYMBIAN32__WSD__)
williamr@4: template <class _InternT, class _ExternT, class _StateT>
williamr@4: locale::id codecvt<_InternT, _ExternT, _StateT>::id;
williamr@4: #      endif
williamr@4: #    endif
williamr@4: #  endif
williamr@4: #endif
williamr@4: 
williamr@2: template <class _InternT, class _ExternT, class _StateT>
williamr@2: class codecvt_byname : public codecvt<_InternT, _ExternT, _StateT> {};
williamr@2: 
williamr@2: _STLP_TEMPLATE_NULL
williamr@4: class _STLP_CLASS_DECLSPEC codecvt<char, char, mbstate_t>
williamr@4:   : public locale::facet, public codecvt_base
williamr@2: {
williamr@4:   friend class _Locale_impl;
williamr@4: 
williamr@2: public:
williamr@2:   typedef char       intern_type;
williamr@2:   typedef char       extern_type;
williamr@2:   typedef mbstate_t  state_type;
williamr@2: 
williamr@4:   explicit codecvt(size_t __refs = 0) : locale::facet(__refs) {}
williamr@2: 
williamr@4:   result out(mbstate_t&   __state,
williamr@2:              const char*  __from,
williamr@2:              const char*  __from_end,
williamr@2:              const char*& __from_next,
williamr@2:              char*        __to,
williamr@4:              char*        __to_limit,
williamr@2:              char*&       __to_next) const {
williamr@4:     return do_out(__state,
williamr@2:                   __from, __from_end, __from_next,
williamr@2:                   __to,   __to_limit, __to_next);
williamr@2:   }
williamr@2: 
williamr@2:   result unshift(mbstate_t& __state,
williamr@2:                  char* __to, char* __to_limit, char*& __to_next) const
williamr@2:     { return do_unshift(__state, __to, __to_limit, __to_next); }
williamr@4: 
williamr@2:   result in(state_type&   __state,
williamr@2:             const char*  __from,
williamr@4:             const char*  __from_end,
williamr@2:             const char*& __from_next,
williamr@4:             char*        __to,
williamr@4:             char*        __to_limit,
williamr@2:             char*&       __to_next) const {
williamr@2:     return do_in(__state,
williamr@2:                  __from, __from_end, __from_next,
williamr@2:                  __to,   __to_limit, __to_next);
williamr@2:   }
williamr@2: 
williamr@2:   int encoding() const _STLP_NOTHROW { return do_encoding(); }
williamr@2: 
williamr@2:   bool always_noconv() const _STLP_NOTHROW { return do_always_noconv(); }
williamr@2: 
williamr@2:   int length(const state_type& __state,
williamr@2:              const char* __from, const char* __end,
williamr@2:              size_t __max) const
williamr@2:     { return do_length(__state, __from, __end, __max); }
williamr@4: 
williamr@2:   int max_length() const _STLP_NOTHROW { return do_max_length(); }
williamr@4: #if defined(__SYMBIAN32__WSD__) 
williamr@4:   static _STLP_STATIC_MEMBER_DECLSPEC locale::id& GetFacetLocaleId();
williamr@4: #elif defined (__SYMBIAN32__NO_STATIC_IMPORTS__)    
williamr@4:     static _STLP_STATIC_MEMBER_DECLSPEC locale::id& GetFacetLocaleId();
williamr@4:     static locale::id id;     
williamr@2: #else
williamr@4:   // NOTE: Symbian doesn't support exporting static data.  
williamr@4:   // Users of this class should use GetFacetLocaleId() to access the data member id    
williamr@4:   static _STLP_STATIC_MEMBER_DECLSPEC locale::id id;
williamr@2: #endif
williamr@2: protected:
williamr@4:   _STLP_DECLSPEC ~codecvt();
williamr@2: 
williamr@2:   _STLP_DECLSPEC virtual result do_out(mbstate_t&   /* __state */,
williamr@2:                         const char*  __from,
williamr@2:                         const char*  /* __from_end */,
williamr@2:                         const char*& __from_next,
williamr@2:                         char*        __to,
williamr@2:                         char*        /* __to_limit */,
williamr@2:                         char*&       __to_next) const;
williamr@2: 
williamr@4:   _STLP_DECLSPEC virtual result do_in (mbstate_t&   /* __state */ ,
williamr@2:                         const char*  __from,
williamr@2:                         const char*  /* __from_end */,
williamr@2:                         const char*& __from_next,
williamr@2:                         char*        __to,
williamr@2:                         char*        /* __to_end */,
williamr@2:                         char*&       __to_next) const;
williamr@2: 
williamr@4:   _STLP_DECLSPEC virtual result do_unshift(mbstate_t& /* __state */,
williamr@2:                             char*      __to,
williamr@2:                             char*      /* __to_limit */,
williamr@2:                             char*&     __to_next) const;
williamr@2: 
williamr@4:   _STLP_DECLSPEC virtual int do_encoding() const _STLP_NOTHROW;
williamr@4:   _STLP_DECLSPEC virtual bool do_always_noconv() const _STLP_NOTHROW;
williamr@4:   _STLP_DECLSPEC virtual int do_length(const mbstate_t&         __state,
williamr@4:                         const  char* __from,
williamr@2:                         const  char* __end,
williamr@2:                         size_t __max) const;
williamr@4:   _STLP_DECLSPEC virtual int do_max_length() const _STLP_NOTHROW;
williamr@2: private:
williamr@2:   codecvt(const codecvt<char, char, mbstate_t>&);
williamr@4:   codecvt<char, char, mbstate_t>& operator =(const codecvt<char, char, mbstate_t>&);
williamr@2: };
williamr@2: 
williamr@2: # ifndef _STLP_NO_WCHAR_T
williamr@4: 
williamr@2: _STLP_TEMPLATE_NULL
williamr@4: class _STLP_CLASS_DECLSPEC codecvt<wchar_t, char, mbstate_t>
williamr@4:   : public locale::facet, public codecvt_base
williamr@2: {
williamr@4:   friend class _Locale_impl;
williamr@2: public:
williamr@2:   typedef wchar_t    intern_type;
williamr@2:   typedef char       extern_type;
williamr@2:   typedef mbstate_t  state_type;
williamr@2: 
williamr@4:   explicit codecvt(size_t __refs = 0) : locale::facet(__refs) {}
williamr@2: 
williamr@4:   result out(mbstate_t&      __state,
williamr@2:              const wchar_t*  __from,
williamr@2:              const wchar_t*  __from_end,
williamr@2:              const wchar_t*& __from_next,
williamr@2:              char*           __to,
williamr@2:              char*           __to_limit,
williamr@2:              char*&          __to_next) const {
williamr@2:     return do_out(__state,
williamr@4:                   __from, __from_end, __from_next,
williamr@2:                   __to,   __to_limit, __to_next);
williamr@2:   }
williamr@2: 
williamr@2:   result unshift(mbstate_t& __state,
williamr@2:                  char*  __to, char*  __to_limit, char*& __to_next) const {
williamr@2:     return do_unshift(__state, __to, __to_limit, __to_next);
williamr@2:   }
williamr@4: 
williamr@4:   result in(mbstate_t&   __state,
williamr@2:             const char*  __from,
williamr@4:             const char*  __from_end,
williamr@2:             const char*& __from_next,
williamr@4:             wchar_t*     __to,
williamr@4:             wchar_t*     __to_limit,
williamr@2:             wchar_t*&    __to_next) const {
williamr@4:     return do_in(__state,
williamr@2:                  __from, __from_end, __from_next,
williamr@4:                  __to,   __to_limit, __to_next);
williamr@2:   }
williamr@2: 
williamr@2:   int encoding() const _STLP_NOTHROW { return do_encoding(); }
williamr@2: 
williamr@2:   bool always_noconv() const _STLP_NOTHROW { return do_always_noconv(); }
williamr@2: 
williamr@4:   int length(const mbstate_t& __state,
williamr@4:              const char* __from, const char* __end,
williamr@4:              size_t __max) const
williamr@2:     { return do_length(__state, __from, __end, __max); }
williamr@4: 
williamr@2:   int max_length() const _STLP_NOTHROW { return do_max_length(); }
williamr@4: #if defined(__SYMBIAN32__WSD__) 
williamr@4:   static _STLP_STATIC_MEMBER_DECLSPEC locale::id& GetFacetLocaleId();
williamr@4: #elif defined (__SYMBIAN32__NO_STATIC_IMPORTS__)    
williamr@4:   static _STLP_STATIC_MEMBER_DECLSPEC locale::id& GetFacetLocaleId();
williamr@4:   static locale::id id;   
williamr@4: #else
williamr@4:   // NOTE: Symbian doesn't support exporting static data.  
williamr@4:   // Users of this class should use GetFacetLocaleId() to access the data member id  
williamr@4:   static _STLP_STATIC_MEMBER_DECLSPEC locale::id id;
williamr@4: #endif
williamr@4: protected:
williamr@4:   _STLP_DECLSPEC ~codecvt();
williamr@2: 
williamr@4:   _STLP_DECLSPEC virtual result do_out(mbstate_t&         __state,
williamr@2:                         const wchar_t*  __from,
williamr@2:                         const wchar_t*  __from_end,
williamr@2:                         const wchar_t*& __from_next,
williamr@2:                         char*        __to,
williamr@2:                         char*        __to_limit,
williamr@2:                         char*&       __to_next) const;
williamr@2: 
williamr@4:   _STLP_DECLSPEC virtual result do_in (mbstate_t&         __state,
williamr@2:                         const char*  __from,
williamr@2:                         const char*  __from_end,
williamr@2:                         const char*& __from_next,
williamr@2:                         wchar_t*        __to,
williamr@2:                         wchar_t*        __to_limit,
williamr@2:                         wchar_t*&       __to_next) const;
williamr@2: 
williamr@4:   _STLP_DECLSPEC virtual result do_unshift(mbstate_t&   __state,
williamr@4:                             char*  __to,
williamr@2:                             char*  __to_limit,
williamr@2:                             char*& __to_next) const;
williamr@2: 
williamr@4:   _STLP_DECLSPEC virtual int do_encoding() const _STLP_NOTHROW;
williamr@2: 
williamr@4:   _STLP_DECLSPEC virtual bool do_always_noconv() const _STLP_NOTHROW;
williamr@4: 
williamr@4:   _STLP_DECLSPEC virtual int do_length(const mbstate_t& __state,
williamr@4:                         const  char* __from,
williamr@2:                         const  char* __end,
williamr@2:                         size_t __max) const;
williamr@2: 
williamr@4:   _STLP_DECLSPEC virtual int do_max_length() const _STLP_NOTHROW;
williamr@2: 
williamr@2: private:
williamr@2:   codecvt(const codecvt<wchar_t, char, mbstate_t>&);
williamr@4:   codecvt<wchar_t, char, mbstate_t>& operator = (const codecvt<wchar_t, char, mbstate_t>&);
williamr@2: };
williamr@2: 
williamr@2: # endif
williamr@2: 
williamr@2: _STLP_TEMPLATE_NULL
williamr@2: class _STLP_CLASS_DECLSPEC codecvt_byname<char, char, mbstate_t>
williamr@2:   : public codecvt<char, char, mbstate_t> {
williamr@2: public:
williamr@4:   _STLP_DECLSPEC explicit codecvt_byname(const char* __name, size_t __refs = 0);
williamr@4:   _STLP_DECLSPEC ~codecvt_byname();
williamr@2: private:
williamr@2:   codecvt_byname(const codecvt_byname<char, char, mbstate_t>&);
williamr@4:   codecvt_byname<char, char, mbstate_t>& operator =(const codecvt_byname<char, char, mbstate_t>&);
williamr@2: };
williamr@2: 
williamr@2: # ifndef _STLP_NO_WCHAR_T
williamr@2: _STLP_TEMPLATE_NULL
williamr@4: class _STLP_CLASS_DECLSPEC codecvt_byname<wchar_t, char, mbstate_t>
williamr@4:   : public codecvt<wchar_t, char, mbstate_t>
williamr@2: {
williamr@2: public:
williamr@4:   _STLP_DECLSPEC explicit codecvt_byname(const char * __name, size_t __refs = 0, _Locale_name_hint* __hint = 0);
williamr@2: 
williamr@2: protected:
williamr@4:   _STLP_DECLSPEC ~codecvt_byname();
williamr@2: 
williamr@4:   _STLP_DECLSPEC virtual result do_out(mbstate_t&         __state,
williamr@2:                         const wchar_t*  __from,
williamr@2:                         const wchar_t*  __from_end,
williamr@2:                         const wchar_t*& __from_next,
williamr@2:                         char*        __to,
williamr@2:                         char*        __to_limit,
williamr@2:                         char*&       __to_next) const;
williamr@2: 
williamr@4:   _STLP_DECLSPEC virtual result do_in (mbstate_t&         __state,
williamr@2:                         const char*  __from,
williamr@2:                         const char*  __from_end,
williamr@2:                         const char*& __from_next,
williamr@2:                         wchar_t*        __to,
williamr@2:                         wchar_t*        __to_limit,
williamr@2:                         wchar_t*&       __to_next) const;
williamr@2: 
williamr@4:   _STLP_DECLSPEC virtual result do_unshift(mbstate_t&   __state,
williamr@4:                             char*  __to,
williamr@2:                             char*  __to_limit,
williamr@2:                             char*& __to_next) const;
williamr@2: 
williamr@4:   _STLP_DECLSPEC virtual int do_encoding() const _STLP_NOTHROW;
williamr@2: 
williamr@4:   _STLP_DECLSPEC virtual bool do_always_noconv() const _STLP_NOTHROW;
williamr@4: 
williamr@4:   _STLP_DECLSPEC virtual int do_length(const mbstate_t&         __state,
williamr@4:                         const  char* __from,
williamr@2:                         const  char* __end,
williamr@2:                         size_t __max) const;
williamr@2: 
williamr@4:   _STLP_DECLSPEC virtual int do_max_length() const _STLP_NOTHROW;
williamr@2: 
williamr@2: private:
williamr@2:   _Locale_ctype* _M_ctype;
williamr@2:   codecvt_byname(const codecvt_byname<wchar_t, char, mbstate_t>&);
williamr@4:   codecvt_byname<wchar_t, char, mbstate_t>& operator =(const codecvt_byname<wchar_t, char, mbstate_t>&);
williamr@2: };
williamr@2: 
williamr@2: # endif
williamr@2: 
williamr@2: _STLP_END_NAMESPACE
williamr@2: 
williamr@2: #endif /* _STLP_INTERNAL_CODECVT_H */
williamr@2: 
williamr@2: // Local Variables:
williamr@2: // mode:C++
williamr@2: // End:
williamr@2: