/home/ntakagi/work/STLport-5.1.5/stlport/stl/_time_facets.h Go to the documentation of this file. /* * Copyright (c) 1999 * Silicon Graphics Computer Systems, Inc. * * Copyright (c) 1999 * Boris Fomitchev * * This material is provided "as is", with absolutely no warranty expressed * or implied. Any use is at your own risk. * * Permission to use or copy this software for any purpose is hereby granted * without fee, provided the above notices are retained on all copies. * Permission to modify the code and to distribute modified code is granted, * provided the above notices are retained, and a notice that the code was * modified is included with the above copyright notice. * */ // WARNING: This is an internal header file, included by other C++ // standard library headers. You should not attempt to use this header // file directly. #ifndef _STLP_INTERNAL_TIME_FACETS_H #define _STLP_INTERNAL_TIME_FACETS_H #ifndef _STLP_INTERNAL_CTIME # include <stl/_ctime.h> // Needed (for struct tm) by time facets #endif #ifndef _STLP_C_LOCALE_H # include <stl/c_locale.h> #endif #ifndef _STLP_IOS_BASE_H # include <stl/_ios_base.h> #endif _STLP_BEGIN_NAMESPACE _STLP_MOVE_TO_PRIV_NAMESPACE // Template functions used by time_get // Matching input against a list of names // Alphabetic input of the names of months and the names // of weekdays requires matching input against a list of names. // We use a simple generic algorithm to accomplish this. This // algorithm is not very efficient, especially for longer lists // of names, but it probably does not matter for the initial // implementation and it may never matter, since we do not expect // this kind of input to be used very often. The algorithm // could be improved fairly simply by creating a new list of // names still in the running at each iteration. A more sophisticated // approach would be to build a trie to do the matching. // // We compare each character of the input to the corresponding // character of each name on the list that has not been eliminated, // either because every character in the name has already been // matched, or because some character has not been matched. We // continue only as long as there are some names that have not been // eliminated. // We do not really need a random access iterator (a forward iterator // would do), but the extra generality makes the notation clumsier, // and we don't really need it. // We can recognize a failed match by the fact that the second // component of the return value will be __name_end. #define _MAXNAMES 64 #define _MAX_NAME_LENGTH 64 // Both time_get and time_put need a structure of type _Time_Info // to provide names and abbreviated names for months and days, // as well as the am/pm designator. The month and weekday tables // have the all the abbreviated names before all the full names. // The _Time_Info tables are initialized using the non-template // function _Init_timeinfo, which has two overloadings: one // with a single reference parameter for the table to be initialized, // and one with a second _Locale_time * parameter. The first form // is called by the default constructor and the second by a special // constructor invoked from the _byname subclass constructor to // construct the base class. class _STLP_CLASS_DECLSPEC _Time_Info { public: string _M_dayname[14]; string _M_monthname[24]; string _M_am_pm[2]; string _M_time_format; string _M_date_format; string _M_date_time_format; string _M_long_date_format; string _M_long_date_time_format; }; void _STLP_CALL _Init_timeinfo(_Time_Info&); void _STLP_CALL _Init_timeinfo(_Time_Info&, _Locale_time*); _STLP_MOVE_TO_STD_NAMESPACE class _STLP_CLASS_DECLSPEC time_base { public: enum dateorder {no_order, dmy, mdy, ymd, ydm}; }; #if defined (_STLP_LIMITED_DEFAULT_TEMPLATES) template <class _Ch, class _InIt> #else template <class _Ch, class _InIt = istreambuf_iterator<_Ch, char_traits<_Ch> > > #endif class time_get : public locale::facet, public time_base { friend class _Locale_impl; public: typedef _Ch char_type; typedef _InIt iter_type; explicit time_get(size_t __refs = 0) : locale::facet(__refs) { _STLP_PRIV _Init_timeinfo(_M_timeinfo); } dateorder date_order() const { return do_date_order(); } iter_type get_time(iter_type __s, iter_type __end, ios_base& __str, ios_base::iostate& __err, tm* __t) const { return do_get_time(__s, __end, __str, __err, __t); } iter_type get_date(iter_type __s, iter_type __end, ios_base& __str, ios_base::iostate& __err, tm* __t) const { return do_get_date(__s, __end, __str, __err, __t); } iter_type get_weekday(iter_type __s, iter_type __end, ios_base& __str, ios_base::iostate& __err, tm* __t) const { return do_get_weekday(__s, __end, __str, __err, __t); } iter_type get_monthname(iter_type __s, iter_type __end, ios_base& __str, ios_base::iostate& __err, tm* __t) const { return do_get_monthname(__s, __end, __str, __err, __t); } iter_type get_year(iter_type __s, iter_type __end, ios_base& __str, ios_base::iostate& __err, tm* __t) const { return do_get_year(__s, __end, __str, __err, __t); } static _STLP_STATIC_MEMBER_DECLSPEC locale::id id; protected: time_get(_Locale_time *, size_t __refs) : locale::facet(__refs) {} ~time_get() {} virtual dateorder do_date_order() const {return no_order;} virtual iter_type do_get_time(iter_type __s, iter_type __end, ios_base&, ios_base::iostate& __err, tm* __t) const; virtual iter_type do_get_date(iter_type __s, iter_type __end, ios_base&, ios_base::iostate& __err, tm* __t) const; virtual iter_type do_get_weekday(iter_type __s, iter_type __end, ios_base&, ios_base::iostate& __err, tm* __t) const; virtual iter_type do_get_monthname(iter_type __s, iter_type __end, ios_base&, ios_base::iostate& __err, tm* __t) const; virtual iter_type do_get_year(iter_type __s, iter_type __end, ios_base&, ios_base::iostate& __err, tm* __t) const; _STLP_PRIV _Time_Info _M_timeinfo; }; _STLP_MOVE_TO_PRIV_NAMESPACE time_base::dateorder _STLP_CALL __get_date_order(_Locale_time*); _Locale_time* _STLP_CALL __acquire_time(const char* __name, _Locale_name_hint*); void _STLP_CALL __release_time(_Locale_time* __time); _STLP_MOVE_TO_STD_NAMESPACE template <class _Ch, class _InIt> class time_get_byname; #if defined (__GNUC__) && (__GNUC__ < 3) template <class _Ch, class _InIt> _Locale_name_hint* _Locale_time_extract_hint(time_get_byname<_Ch, _InIt>*); #else _Locale_name_hint* _Locale_time_extract_hint(time_get_byname<char, istreambuf_iterator<char, char_traits<char> > >*); #endif #if defined (_STLP_LIMITED_DEFAULT_TEMPLATES) template <class _Ch, class _InIt> #else template <class _Ch, class _InIt = istreambuf_iterator<_Ch, char_traits<_Ch> > > #endif class time_get_byname : public time_get<_Ch, _InIt> { public: typedef time_base::dateorder dateorder; typedef _InIt iter_type; explicit time_get_byname(const char* __name, size_t __refs = 0, _Locale_name_hint* __hint = 0) : time_get<_Ch, _InIt>((_Locale_time*) 0, __refs), _M_time(_STLP_PRIV __acquire_time(__name, __hint)) { _STLP_PRIV _Init_timeinfo(this->_M_timeinfo, this->_M_time); } protected: ~time_get_byname() { _STLP_PRIV __release_time(_M_time); } dateorder do_date_order() const { return _STLP_PRIV __get_date_order(_M_time); } private: _Locale_time* _M_time; typedef time_get_byname<_Ch, _InIt> _Self; //explicitely defined as private to avoid warnings: time_get_byname(_Self const&); _Self& operator = (_Self const&); #if defined (__GNUC__) && (__GNUC__ < 3) friend _Locale_name_hint* _Locale_time_extract_hint<>(_Self*); #else friend _Locale_name_hint* _Locale_time_extract_hint(time_get_byname<char, istreambuf_iterator<char, char_traits<char> > >*); #endif }; // time_put facet // For the formats 'x, 'X', and 'c', do_put calls the first form of // put with the pattern obtained from _M_timeinfo._M_date_format or // _M_timeinfo._M_time_format. // Helper function: __ takes a single-character // format. As indicated by the foregoing remark, this will never be // 'x', 'X', or 'c'. _STLP_MOVE_TO_PRIV_NAMESPACE char * _STLP_CALL __write_formatted_time(char *__buf, size_t __buf_size, char __format, char __modifier, const _Time_Info& __table, const tm* __t); template <class _OuIt> inline _OuIt _STLP_CALL __put_time(char * __first, char * __last, _OuIt __out_ite, const ios_base& /* __loc */, char) { return copy(__first, __last, __out_ite); } #if !defined (_STLP_NO_WCHAR_T) template <class _OuIt> _OuIt _STLP_CALL __put_time(char * __first, char * __last, _OuIt __out_ite, const ios_base& __s, wchar_t); #endif _STLP_MOVE_TO_STD_NAMESPACE #if defined (_STLP_LIMITED_DEFAULT_TEMPLATES) template <class _Ch, class _OutIt> #else template <class _Ch, class _OutIt = ostreambuf_iterator<_Ch, char_traits<_Ch> > > #endif class time_put : public locale::facet, public time_base { friend class _Locale_impl; public: typedef _Ch char_type; typedef _OutIt iter_type; explicit time_put(size_t __refs = 0) : locale::facet(__refs) { _STLP_PRIV _Init_timeinfo(_M_timeinfo); } _OutIt put(iter_type __s, ios_base& __f, _Ch __fill, const tm* __tmb, const _Ch* __pat, const _Ch* __pat_end) const; _OutIt put(iter_type __s, ios_base& __f, _Ch __fill, const tm* __tmb, char __format, char __modifier = 0) const { return do_put(__s, __f, __fill, __tmb, __format, __modifier); } static _STLP_STATIC_MEMBER_DECLSPEC locale::id id; protected: time_put(_Locale_time* /*__time*/, size_t __refs) : locale::facet(__refs) {} //_STLP_PRIV _Init_timeinfo(_M_timeinfo, __time); } ~time_put() {} virtual iter_type do_put(iter_type __s, ios_base& __f, char_type /* __fill */, const tm* __tmb, char __format, char /* __modifier */) const; _STLP_PRIV _Time_Info _M_timeinfo; }; #if defined (_STLP_LIMITED_DEFAULT_TEMPLATES) template <class _Ch, class _OutIt> #else template <class _Ch, class _OutIt = ostreambuf_iterator<_Ch, char_traits<_Ch> > > #endif class time_put_byname : public time_put<_Ch, _OutIt> { friend class _Locale_impl; public: typedef time_base::dateorder dateorder; typedef _OutIt iter_type; typedef _Ch char_type; explicit time_put_byname(const char * __name, size_t __refs = 0, _Locale_name_hint* __hint = 0) : time_put<_Ch, _OutIt>((_Locale_time*) 0, __refs), _M_time(_STLP_PRIV __acquire_time(__name, __hint)) { _STLP_PRIV _Init_timeinfo(this->_M_timeinfo, this->_M_time); } protected: ~time_put_byname() { _STLP_PRIV __release_time(_M_time); } private: _Locale_time* _M_time; typedef time_put_byname<_Ch, _OutIt> _Self; //explicitely defined as private to avoid warnings: time_put_byname(_Self const&); _Self& operator = (_Self const&); }; #if defined (_STLP_USE_TEMPLATE_EXPORT) _STLP_EXPORT_TEMPLATE_CLASS time_get<char, istreambuf_iterator<char, char_traits<char> > >; _STLP_EXPORT_TEMPLATE_CLASS time_put<char, ostreambuf_iterator<char, char_traits<char> > >; // _STLP_EXPORT_TEMPLATE_CLASS time_get<char, const char*>; // _STLP_EXPORT_TEMPLATE_CLASS time_put<char, char*>; # if !defined (_STLP_NO_WCHAR_T) _STLP_EXPORT_TEMPLATE_CLASS time_get<wchar_t, istreambuf_iterator<wchar_t, char_traits<wchar_t> > >; _STLP_EXPORT_TEMPLATE_CLASS time_put<wchar_t, ostreambuf_iterator<wchar_t, char_traits<wchar_t> > >; // _STLP_EXPORT_TEMPLATE_CLASS time_get<wchar_t, const wchar_t*>; // _STLP_EXPORT_TEMPLATE_CLASS time_put<wchar_t, wchar_t*>; # endif #endif _STLP_END_NAMESPACE #if defined (_STLP_EXPOSE_STREAM_IMPLEMENTATION) && !defined (_STLP_LINK_TIME_INSTANTIATION) # include <stl/_time_facets.c> #endif #endif /* _STLP_INTERNAL_TIME_FACETS_H */ // Local Variables: // mode:C++ // End:

• ソフトウェア開発
• ホームページ制作
• Doxygen Source Document
• Tcl Source Document