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1 | #ifndef ISO_FORMAT_HPP___ |
2 | #define ISO_FORMAT_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/parse_format_base.hpp" | |
13 | ||
14 | namespace boost { | |
15 | namespace date_time { | |
16 | ||
17 | //! Class to provide common iso formatting spec | |
18 | template<class charT> | |
19 | class iso_format_base { | |
20 | public: | |
21 | //! Describe month format -- its an integer in iso format | |
22 | static month_format_spec month_format() | |
23 | { | |
24 | return month_as_integer; | |
25 | } | |
26 | ||
27 | //! String used printed is date is invalid | |
28 | static const charT* not_a_date() | |
29 | { | |
30 | return "not-a-date-time"; | |
31 | } | |
32 | //! String used to for positive infinity value | |
33 | static const charT* pos_infinity() | |
34 | { | |
35 | return "+infinity"; | |
36 | } | |
37 | //! String used to for positive infinity value | |
38 | static const charT* neg_infinity() | |
39 | { | |
40 | return "-infinity"; | |
41 | } | |
42 | ||
43 | //! ISO char for a year -- used in durations | |
44 | static charT year_sep_char() | |
45 | { | |
46 | return 'Y'; | |
47 | } | |
48 | //! ISO char for a month | |
49 | static charT month_sep_char() | |
50 | { | |
51 | return '-'; | |
52 | } | |
53 | //! ISO char for a day | |
54 | static charT day_sep_char() | |
55 | { | |
56 | return '-'; | |
57 | } | |
58 | //! char for minute | |
59 | static charT hour_sep_char() | |
60 | { | |
61 | return ':'; | |
62 | } | |
63 | //! char for minute | |
64 | static charT minute_sep_char() | |
65 | { | |
66 | return ':'; | |
67 | } | |
68 | //! char for second | |
69 | static charT second_sep_char() | |
70 | { | |
71 | return ':'; | |
72 | } | |
73 | //! ISO char for a period | |
74 | static charT period_start_char() | |
75 | { | |
76 | return 'P'; | |
77 | } | |
78 | //! Used in time in mixed strings to set start of time | |
79 | static charT time_start_char() | |
80 | { | |
81 | return 'T'; | |
82 | } | |
83 | ||
84 | //! Used in mixed strings to identify start of a week number | |
85 | static charT week_start_char() | |
86 | { | |
87 | return 'W'; | |
88 | } | |
89 | ||
90 | //! Separators for periods | |
91 | static charT period_sep_char() | |
92 | { | |
93 | return '/'; | |
94 | } | |
95 | //! Separator for hh:mm:ss | |
96 | static charT time_sep_char() | |
97 | { | |
98 | return ':'; | |
99 | } | |
100 | //! Preferred Separator for hh:mm:ss,decimal_fraction | |
101 | static charT fractional_time_sep_char() | |
102 | { | |
103 | return ','; | |
104 | } | |
105 | ||
106 | static bool is_component_sep(charT sep) | |
107 | { | |
108 | switch(sep) { | |
109 | case 'H': | |
110 | case 'M': | |
111 | case 'S': | |
112 | case 'W': | |
113 | case 'T': | |
114 | case 'Y': | |
115 | case 'D':return true; | |
116 | default: | |
117 | return false; | |
118 | } | |
119 | } | |
120 | ||
121 | static bool is_fractional_time_sep(charT sep) | |
122 | { | |
123 | switch(sep) { | |
124 | case ',': | |
125 | case '.': return true; | |
126 | default: return false; | |
127 | } | |
128 | } | |
129 | static bool is_timezone_sep(charT sep) | |
130 | { | |
131 | switch(sep) { | |
132 | case '+': | |
133 | case '-': return true; | |
134 | default: return false; | |
135 | } | |
136 | } | |
137 | static charT element_sep_char() | |
138 | { | |
139 | return '-'; | |
140 | } | |
141 | ||
142 | }; | |
143 | ||
144 | #ifndef BOOST_NO_STD_WSTRING | |
145 | ||
146 | //! Class to provide common iso formatting spec | |
147 | template<> | |
148 | class iso_format_base<wchar_t> { | |
149 | public: | |
150 | //! Describe month format -- its an integer in iso format | |
151 | static month_format_spec month_format() | |
152 | { | |
153 | return month_as_integer; | |
154 | } | |
155 | ||
156 | //! String used printed is date is invalid | |
157 | static const wchar_t* not_a_date() | |
158 | { | |
159 | return L"not-a-date-time"; | |
160 | } | |
161 | //! String used to for positive infinity value | |
162 | static const wchar_t* pos_infinity() | |
163 | { | |
164 | return L"+infinity"; | |
165 | } | |
166 | //! String used to for positive infinity value | |
167 | static const wchar_t* neg_infinity() | |
168 | { | |
169 | return L"-infinity"; | |
170 | } | |
171 | ||
172 | //! ISO char for a year -- used in durations | |
173 | static wchar_t year_sep_char() | |
174 | { | |
175 | return 'Y'; | |
176 | } | |
177 | //! ISO char for a month | |
178 | static wchar_t month_sep_char() | |
179 | { | |
180 | return '-'; | |
181 | } | |
182 | //! ISO char for a day | |
183 | static wchar_t day_sep_char() | |
184 | { | |
185 | return '-'; | |
186 | } | |
187 | //! char for minute | |
188 | static wchar_t hour_sep_char() | |
189 | { | |
190 | return ':'; | |
191 | } | |
192 | //! char for minute | |
193 | static wchar_t minute_sep_char() | |
194 | { | |
195 | return ':'; | |
196 | } | |
197 | //! char for second | |
198 | static wchar_t second_sep_char() | |
199 | { | |
200 | return ':'; | |
201 | } | |
202 | //! ISO char for a period | |
203 | static wchar_t period_start_char() | |
204 | { | |
205 | return 'P'; | |
206 | } | |
207 | //! Used in time in mixed strings to set start of time | |
208 | static wchar_t time_start_char() | |
209 | { | |
210 | return 'T'; | |
211 | } | |
212 | ||
213 | //! Used in mixed strings to identify start of a week number | |
214 | static wchar_t week_start_char() | |
215 | { | |
216 | return 'W'; | |
217 | } | |
218 | ||
219 | //! Separators for periods | |
220 | static wchar_t period_sep_char() | |
221 | { | |
222 | return '/'; | |
223 | } | |
224 | //! Separator for hh:mm:ss | |
225 | static wchar_t time_sep_char() | |
226 | { | |
227 | return ':'; | |
228 | } | |
229 | //! Preferred Separator for hh:mm:ss,decimal_fraction | |
230 | static wchar_t fractional_time_sep_char() | |
231 | { | |
232 | return ','; | |
233 | } | |
234 | ||
235 | static bool is_component_sep(wchar_t sep) | |
236 | { | |
237 | switch(sep) { | |
238 | case 'H': | |
239 | case 'M': | |
240 | case 'S': | |
241 | case 'W': | |
242 | case 'T': | |
243 | case 'Y': | |
244 | case 'D':return true; | |
245 | default: | |
246 | return false; | |
247 | } | |
248 | } | |
249 | ||
250 | static bool is_fractional_time_sep(wchar_t sep) | |
251 | { | |
252 | switch(sep) { | |
253 | case ',': | |
254 | case '.': return true; | |
255 | default: return false; | |
256 | } | |
257 | } | |
258 | static bool is_timezone_sep(wchar_t sep) | |
259 | { | |
260 | switch(sep) { | |
261 | case '+': | |
262 | case '-': return true; | |
263 | default: return false; | |
264 | } | |
265 | } | |
266 | static wchar_t element_sep_char() | |
267 | { | |
268 | return '-'; | |
269 | } | |
270 | ||
271 | }; | |
272 | ||
273 | #endif // BOOST_NO_STD_WSTRING | |
274 | ||
275 | //! Format description for iso normal YYYYMMDD | |
276 | template<class charT> | |
277 | class iso_format : public iso_format_base<charT> { | |
278 | public: | |
279 | //! The ios standard format doesn't use char separators | |
280 | static bool has_date_sep_chars() | |
281 | { | |
282 | return false; | |
283 | } | |
284 | }; | |
285 | ||
286 | //! Extended format uses seperators YYYY-MM-DD | |
287 | template<class charT> | |
288 | class iso_extended_format : public iso_format_base<charT> { | |
289 | public: | |
290 | //! Extended format needs char separators | |
291 | static bool has_date_sep_chars() | |
292 | { | |
293 | return true; | |
294 | } | |
295 | ||
296 | }; | |
297 | ||
298 | } } //namespace date_time | |
299 | ||
300 | ||
301 | ||
302 | ||
303 | #endif |