1 #ifndef GREG_MONTH_HPP___ 2 #define GREG_MONTH_HPP___ 3 4 /* Copyright (c) 2002,2003 CrystalClear Software, Inc. 5 * Use, modification and distribution is subject to the 6 * Boost Software License, Version 1.0. (See accompanying 7 * file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) 8 * Author: Jeff Garland, Bart Garst 9 * $Date$ 10 */ 11 12 #include "boost/date_time/constrained_value.hpp" 13 #include "boost/date_time/date_defs.hpp" 14 #include "boost/shared_ptr.hpp" 15 #include "boost/date_time/compiler_config.hpp" 16 #include <stdexcept> 17 #include <string> 18 #include <map> 19 #include <algorithm> 20 #include <cctype> 21 22 namespace boost { 23 namespace gregorian { 24 25 typedef date_time::months_of_year months_of_year; 26 27 //bring enum values into the namespace 28 using date_time::Jan; 29 using date_time::Feb; 30 using date_time::Mar; 31 using date_time::Apr; 32 using date_time::May; 33 using date_time::Jun; 34 using date_time::Jul; 35 using date_time::Aug; 36 using date_time::Sep; 37 using date_time::Oct; 38 using date_time::Nov; 39 using date_time::Dec; 40 using date_time::NotAMonth; 41 using date_time::NumMonths; 42 43 //! Exception thrown if a greg_month is constructed with a value out of range 44 struct bad_month : public std::out_of_range 45 { bad_monthboost::gregorian::bad_month46 bad_month() : std::out_of_range(std::string("Month number is out of range 1..12")) {} 47 }; 48 //! Build a policy class for the greg_month_rep 49 typedef CV::simple_exception_policy<unsigned short, 1, 12, bad_month> greg_month_policies; 50 //! A constrained range that implements the gregorian_month rules 51 typedef CV::constrained_value<greg_month_policies> greg_month_rep; 52 53 54 //! Wrapper class to represent months in gregorian based calendar 55 class BOOST_DATE_TIME_DECL greg_month : public greg_month_rep { 56 public: 57 typedef date_time::months_of_year month_enum; 58 typedef std::map<std::string, unsigned short> month_map_type; 59 typedef boost::shared_ptr<month_map_type> month_map_ptr_type; 60 //! Construct a month from the months_of_year enumeration greg_month(month_enum theMonth)61 greg_month(month_enum theMonth) : 62 greg_month_rep(static_cast<greg_month_rep::value_type>(theMonth)) {} 63 //! Construct from a short value greg_month(unsigned short theMonth)64 greg_month(unsigned short theMonth) : greg_month_rep(theMonth) {} 65 //! Convert the value back to a short operator unsigned short() const66 operator unsigned short() const {return value_;} 67 //! Returns month as number from 1 to 12 as_number() const68 unsigned short as_number() const {return value_;} as_enum() const69 month_enum as_enum() const {return static_cast<month_enum>(value_);} 70 const char* as_short_string() const; 71 const char* as_long_string() const; 72 #ifndef BOOST_NO_STD_WSTRING 73 const wchar_t* as_short_wstring() const; 74 const wchar_t* as_long_wstring() const; 75 #endif // BOOST_NO_STD_WSTRING 76 //! Shared pointer to a map of Month strings (Names & Abbrev) & numbers 77 static month_map_ptr_type get_month_map_ptr(); 78 79 /* parameterized as_*_string functions are intended to be called 80 * from a template function: "... as_short_string(charT c='\0');" */ as_short_string(char) const81 const char* as_short_string(char) const 82 { 83 return as_short_string(); 84 } as_long_string(char) const85 const char* as_long_string(char) const 86 { 87 return as_long_string(); 88 } 89 #ifndef BOOST_NO_STD_WSTRING as_short_string(wchar_t) const90 const wchar_t* as_short_string(wchar_t) const 91 { 92 return as_short_wstring(); 93 } as_long_string(wchar_t) const94 const wchar_t* as_long_string(wchar_t) const 95 { 96 return as_long_wstring(); 97 } 98 #endif // BOOST_NO_STD_WSTRING 99 }; 100 101 } } //namespace gregorian 102 103 104 105 #endif 106