1 | #ifndef GREG_MONTH_HPP___ |
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2 | #define GREG_MONTH_HPP___ |
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3 | |
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4 | /* Copyright (c) 2002,2003 CrystalClear Software, Inc. |
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5 | * Use, modification and distribution is subject to the |
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6 | * Boost Software License, Version 1.0. (See accompanying |
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7 | * file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) |
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8 | * Author: Jeff Garland, Bart Garst |
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9 | * $Date: 2008-02-27 15:00:24 -0500 (Wed, 27 Feb 2008) $ |
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10 | */ |
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11 | |
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12 | #include "boost/date_time/constrained_value.hpp" |
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13 | #include "boost/date_time/date_defs.hpp" |
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14 | #include "boost/shared_ptr.hpp" |
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15 | #include "boost/date_time/compiler_config.hpp" |
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16 | #include <stdexcept> |
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17 | #include <string> |
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18 | #include <map> |
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19 | #include <algorithm> |
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20 | #include <cctype> |
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21 | |
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22 | namespace boost { |
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23 | namespace gregorian { |
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24 | |
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25 | typedef date_time::months_of_year months_of_year; |
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26 | |
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27 | //bring enum values into the namespace |
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28 | using date_time::Jan; |
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29 | using date_time::Feb; |
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30 | using date_time::Mar; |
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31 | using date_time::Apr; |
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32 | using date_time::May; |
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33 | using date_time::Jun; |
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34 | using date_time::Jul; |
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35 | using date_time::Aug; |
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36 | using date_time::Sep; |
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37 | using date_time::Oct; |
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38 | using date_time::Nov; |
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39 | using date_time::Dec; |
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40 | using date_time::NotAMonth; |
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41 | using date_time::NumMonths; |
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42 | |
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43 | //! Exception thrown if a greg_month is constructed with a value out of range |
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44 | struct bad_month : public std::out_of_range |
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45 | { |
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46 | bad_month() : std::out_of_range(std::string("Month number is out of range 1..12")) {} |
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47 | }; |
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48 | //! Build a policy class for the greg_month_rep |
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49 | typedef CV::simple_exception_policy<unsigned short, 1, 12, bad_month> greg_month_policies; |
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50 | //! A constrained range that implements the gregorian_month rules |
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51 | typedef CV::constrained_value<greg_month_policies> greg_month_rep; |
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52 | |
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53 | |
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54 | //! Wrapper class to represent months in gregorian based calendar |
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55 | class BOOST_DATE_TIME_DECL greg_month : public greg_month_rep { |
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56 | public: |
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57 | typedef date_time::months_of_year month_enum; |
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58 | typedef std::map<std::string, unsigned short> month_map_type; |
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59 | typedef boost::shared_ptr<month_map_type> month_map_ptr_type; |
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60 | //! Construct a month from the months_of_year enumeration |
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61 | greg_month(month_enum theMonth) : |
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62 | greg_month_rep(static_cast<greg_month_rep::value_type>(theMonth)) {} |
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63 | //! Construct from a short value |
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64 | greg_month(unsigned short theMonth) : greg_month_rep(theMonth) {} |
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65 | //! Convert the value back to a short |
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66 | operator unsigned short() const {return value_;} |
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67 | //! Returns month as number from 1 to 12 |
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68 | unsigned short as_number() const {return value_;} |
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69 | month_enum as_enum() const {return static_cast<month_enum>(value_);} |
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70 | const char* as_short_string() const; |
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71 | const char* as_long_string() const; |
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72 | #ifndef BOOST_NO_STD_WSTRING |
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73 | const wchar_t* as_short_wstring() const; |
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74 | const wchar_t* as_long_wstring() const; |
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75 | #endif // BOOST_NO_STD_WSTRING |
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76 | //! Shared pointer to a map of Month strings (Names & Abbrev) & numbers |
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77 | static month_map_ptr_type get_month_map_ptr(); |
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78 | |
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79 | /* parameterized as_*_string functions are intended to be called |
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80 | * from a template function: "... as_short_string(charT c='\0');" */ |
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81 | const char* as_short_string(char) const |
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82 | { |
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83 | return as_short_string(); |
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84 | } |
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85 | const char* as_long_string(char) const |
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86 | { |
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87 | return as_long_string(); |
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88 | } |
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89 | #ifndef BOOST_NO_STD_WSTRING |
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90 | const wchar_t* as_short_string(wchar_t) const |
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91 | { |
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92 | return as_short_wstring(); |
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93 | } |
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94 | const wchar_t* as_long_string(wchar_t) const |
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95 | { |
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96 | return as_long_wstring(); |
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97 | } |
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98 | #endif // BOOST_NO_STD_WSTRING |
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99 | }; |
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100 | |
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101 | } } //namespace gregorian |
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102 | |
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103 | |
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104 | |
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105 | #endif |
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