Chris@16: #ifndef ISO_FORMAT_HPP___
Chris@16: #define ISO_FORMAT_HPP___
Chris@16: 
Chris@16: /* Copyright (c) 2002,2003 CrystalClear Software, Inc.
Chris@16:  * Use, modification and distribution is subject to the 
Chris@16:  * Boost Software License, Version 1.0. (See accompanying
Chris@16:  * file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
Chris@16:  * Author: Jeff Garland, Bart Garst
Chris@101:  * $Date$
Chris@16:  */
Chris@16: 
Chris@16: #include "boost/date_time/parse_format_base.hpp"
Chris@16: 
Chris@16: namespace boost {
Chris@16: namespace date_time {
Chris@16: 
Chris@16: //! Class to provide common iso formatting spec
Chris@16: template<class charT>
Chris@16: class iso_format_base {
Chris@16: public:
Chris@16:   //! Describe month format -- its an integer in iso format
Chris@16:   static month_format_spec month_format()
Chris@16:   {
Chris@16:     return month_as_integer;
Chris@16:   }
Chris@16: 
Chris@16:   //! String used printed is date is invalid
Chris@16:   static const charT* not_a_date()
Chris@16:   {     
Chris@16:     return "not-a-date-time";
Chris@16:   }
Chris@16:   //! String used to for positive infinity value
Chris@16:   static const charT* pos_infinity()
Chris@16:   {
Chris@16:     return "+infinity";
Chris@16:   }
Chris@16:   //! String used to for positive infinity value
Chris@16:   static const charT* neg_infinity()
Chris@16:   {
Chris@16:     return "-infinity";
Chris@16:   }
Chris@16: 
Chris@16:   //! ISO char for a year -- used in durations
Chris@16:   static charT year_sep_char()
Chris@16:   {
Chris@16:     return 'Y';
Chris@16:   }
Chris@16:   //! ISO char for a month
Chris@16:   static charT month_sep_char()
Chris@16:   {
Chris@16:     return '-';
Chris@16:   }
Chris@16:   //! ISO char for a day
Chris@16:   static charT day_sep_char()
Chris@16:   {
Chris@16:     return '-';
Chris@16:   }
Chris@16:   //! char for minute
Chris@16:   static charT hour_sep_char()
Chris@16:   {
Chris@16:     return ':';
Chris@16:   }
Chris@16:   //! char for minute
Chris@16:   static charT minute_sep_char()
Chris@16:   {
Chris@16:     return ':';
Chris@16:   }
Chris@16:   //! char for second
Chris@16:   static charT second_sep_char()
Chris@16:   {
Chris@16:     return ':';
Chris@16:   }
Chris@16:   //! ISO char for a period
Chris@16:   static charT period_start_char()
Chris@16:   {
Chris@16:     return 'P';
Chris@16:   }
Chris@16:   //! Used in time in mixed strings to set start of time
Chris@16:   static charT time_start_char()
Chris@16:   {
Chris@16:     return 'T';
Chris@16:   }
Chris@16: 
Chris@16:   //! Used in mixed strings to identify start of a week number
Chris@16:   static charT week_start_char()
Chris@16:   {
Chris@16:     return 'W';
Chris@16:   }
Chris@16: 
Chris@16:   //! Separators for periods
Chris@16:   static charT period_sep_char()
Chris@16:   {
Chris@16:     return '/';
Chris@16:   }
Chris@16:   //! Separator for hh:mm:ss
Chris@16:   static charT time_sep_char()
Chris@16:   {
Chris@16:     return ':';
Chris@16:   }
Chris@16:   //! Preferred Separator for hh:mm:ss,decimal_fraction
Chris@16:   static charT fractional_time_sep_char()
Chris@16:   {
Chris@16:     return ',';
Chris@16:   }
Chris@16: 
Chris@16:   static bool is_component_sep(charT sep)
Chris@16:   {
Chris@16:     switch(sep) {
Chris@16:     case 'H':
Chris@16:     case 'M':
Chris@16:     case 'S':
Chris@16:     case 'W':
Chris@16:     case 'T':
Chris@16:     case 'Y':
Chris@16:     case 'D':return true;
Chris@16:     default:
Chris@16:       return false;
Chris@16:     }
Chris@16:   }
Chris@16: 
Chris@16:   static bool is_fractional_time_sep(charT sep)
Chris@16:   {
Chris@16:     switch(sep) {
Chris@16:     case ',':
Chris@16:     case '.': return true;
Chris@16:     default: return false;
Chris@16:     }
Chris@16:   }
Chris@16:   static bool is_timezone_sep(charT sep)
Chris@16:   {
Chris@16:     switch(sep) {
Chris@16:     case '+':
Chris@16:     case '-': return true;
Chris@16:     default: return false;
Chris@16:     }
Chris@16:   }
Chris@16:   static charT element_sep_char()
Chris@16:   {
Chris@16:     return '-';
Chris@16:   }
Chris@16: 
Chris@16: };
Chris@16: 
Chris@16: #ifndef BOOST_NO_STD_WSTRING
Chris@16: 
Chris@16: //! Class to provide common iso formatting spec
Chris@16: template<>
Chris@16: class iso_format_base<wchar_t> {
Chris@16: public:
Chris@16:   //! Describe month format -- its an integer in iso format
Chris@16:   static month_format_spec month_format()
Chris@16:   {
Chris@16:     return month_as_integer;
Chris@16:   }
Chris@16: 
Chris@16:   //! String used printed is date is invalid
Chris@16:   static const wchar_t* not_a_date()
Chris@16:   {      
Chris@16:     return L"not-a-date-time";
Chris@16:   }
Chris@16:   //! String used to for positive infinity value
Chris@16:   static const wchar_t* pos_infinity()
Chris@16:   {
Chris@16:     return L"+infinity";
Chris@16:   }
Chris@16:   //! String used to for positive infinity value
Chris@16:   static const wchar_t* neg_infinity()
Chris@16:   {
Chris@16:     return L"-infinity";
Chris@16:   }
Chris@16: 
Chris@16:   //! ISO char for a year -- used in durations
Chris@16:   static wchar_t year_sep_char()
Chris@16:   {
Chris@16:     return 'Y';
Chris@16:   }
Chris@16:   //! ISO char for a month
Chris@16:   static wchar_t month_sep_char()
Chris@16:   {
Chris@16:     return '-';
Chris@16:   }
Chris@16:   //! ISO char for a day
Chris@16:   static wchar_t day_sep_char()
Chris@16:   {
Chris@16:     return '-';
Chris@16:   }
Chris@16:   //! char for minute
Chris@16:   static wchar_t hour_sep_char()
Chris@16:   {
Chris@16:     return ':';
Chris@16:   }
Chris@16:   //! char for minute
Chris@16:   static wchar_t minute_sep_char()
Chris@16:   {
Chris@16:     return ':';
Chris@16:   }
Chris@16:   //! char for second
Chris@16:   static wchar_t second_sep_char()
Chris@16:   {
Chris@16:     return ':';
Chris@16:   }
Chris@16:   //! ISO char for a period
Chris@16:   static wchar_t period_start_char()
Chris@16:   {
Chris@16:     return 'P';
Chris@16:   }
Chris@16:   //! Used in time in mixed strings to set start of time
Chris@16:   static wchar_t time_start_char()
Chris@16:   {
Chris@16:     return 'T';
Chris@16:   }
Chris@16: 
Chris@16:   //! Used in mixed strings to identify start of a week number
Chris@16:   static wchar_t week_start_char()
Chris@16:   {
Chris@16:     return 'W';
Chris@16:   }
Chris@16: 
Chris@16:   //! Separators for periods
Chris@16:   static wchar_t period_sep_char()
Chris@16:   {
Chris@16:     return '/';
Chris@16:   }
Chris@16:   //! Separator for hh:mm:ss
Chris@16:   static wchar_t time_sep_char()
Chris@16:   {
Chris@16:     return ':';
Chris@16:   }
Chris@16:   //! Preferred Separator for hh:mm:ss,decimal_fraction
Chris@16:   static wchar_t fractional_time_sep_char()
Chris@16:   {
Chris@16:     return ',';
Chris@16:   }
Chris@16: 
Chris@16:   static bool is_component_sep(wchar_t sep)
Chris@16:   {
Chris@16:     switch(sep) {
Chris@16:     case 'H':
Chris@16:     case 'M':
Chris@16:     case 'S':
Chris@16:     case 'W':
Chris@16:     case 'T':
Chris@16:     case 'Y':
Chris@16:     case 'D':return true;
Chris@16:     default:
Chris@16:       return false;
Chris@16:     }
Chris@16:   }
Chris@16: 
Chris@16:   static bool is_fractional_time_sep(wchar_t sep)
Chris@16:   {
Chris@16:     switch(sep) {
Chris@16:     case ',':
Chris@16:     case '.': return true;
Chris@16:     default: return false;
Chris@16:     }
Chris@16:   }
Chris@16:   static bool is_timezone_sep(wchar_t sep)
Chris@16:   {
Chris@16:     switch(sep) {
Chris@16:     case '+':
Chris@16:     case '-': return true;
Chris@16:     default: return false;
Chris@16:     }
Chris@16:   }
Chris@16:   static wchar_t element_sep_char()
Chris@16:   {
Chris@16:     return '-';
Chris@16:   }
Chris@16: 
Chris@16: };
Chris@16: 
Chris@16: #endif // BOOST_NO_STD_WSTRING
Chris@16: 
Chris@16: //! Format description for iso normal YYYYMMDD
Chris@16: template<class charT>
Chris@16: class iso_format : public iso_format_base<charT> {
Chris@16: public:
Chris@16:   //! The ios standard format doesn't use char separators
Chris@16:   static bool has_date_sep_chars()
Chris@16:   {
Chris@16:     return false;
Chris@16:   }
Chris@16: };
Chris@16: 
Chris@16: //! Extended format uses seperators YYYY-MM-DD
Chris@16: template<class charT>
Chris@16: class iso_extended_format : public iso_format_base<charT> {
Chris@16: public:
Chris@16:   //! Extended format needs char separators
Chris@16:   static bool has_date_sep_chars()
Chris@16:   {
Chris@16:     return true;
Chris@16:   }
Chris@16: 
Chris@16: };
Chris@16: 
Chris@16: } } //namespace date_time
Chris@16: 
Chris@16: 
Chris@16: 
Chris@16: 
Chris@16: #endif