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 | { |
46 | 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 |
61 | greg_month(month_enum theMonth) : |
62 | greg_month_rep(static_cast<greg_month_rep::value_type>(theMonth)) {} |
63 | //! Construct from a short value |
64 | greg_month(unsigned short theMonth) : greg_month_rep(theMonth) {} |
65 | //! Convert the value back to a short |
66 | operator unsigned short() const {return value_;} |
67 | //! Returns month as number from 1 to 12 |
68 | unsigned short as_number() const {return value_;} |
69 | 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');" */ |
81 | const char* as_short_string(char) const |
82 | { |
83 | return as_short_string(); |
84 | } |
85 | const char* as_long_string(char) const |
86 | { |
87 | return as_long_string(); |
88 | } |
89 | #ifndef BOOST_NO_STD_WSTRING |
90 | const wchar_t* as_short_string(wchar_t) const |
91 | { |
92 | return as_short_wstring(); |
93 | } |
94 | 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 | |