Class: Date

283
284
285
286
287
288
289
290
291
292
293
294

# File 'opal/stdlib/date.rb', line 283
def initialize(year = -4712, month = 1, day = 1, start = ITALY )
 %x{
 // Because of Gregorian reform calendar goes from 1582年10月04日 to 1582年10月15日.
 // All days in between end up as 4 october.
 if (year === 1582 && month === 10 && day > 4 && day < 15) {
 day = 4;
 }
 }
 @date = `new Date(year, month - 1, day)`
 @start = start
end

296
297
298

# File 'opal/stdlib/date.rb', line 296
def start
 @start
end

533
534
535
536
537
538

# File 'opal/stdlib/date.rb', line 533
def self._days_in_month(year, month)
 %x{
 var leap = ((year % 4 === 0 && year % 100 !== 0) || year % 400 === 0);
 return [31, (leap ? 29 : 28), 31, 30, 31, 30, 31, 31, 30, 31, 30, 31][month];
 }
end

2
3
4

# File 'opal/stdlib/date/formatters.rb', line 2
def self.def_formatter(*args, **kwargs)
 Time .def_formatter (*args, **kwargs, on: self)
end

276
277
278

# File 'opal/stdlib/date.rb', line 276
def gregorian_leap?(year)
 `(new Date(#{year}, 1, 29).getMonth()-1) === 0`
end

26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270

# File 'opal/stdlib/date.rb', line 26
def parse(string, comp = true)
 %x{
 var current_date = new Date();
 var current_day = current_date.getDate(),
 current_month = current_date.getMonth(),
 current_year = current_date.getFullYear(),
 current_wday = current_date.getDay(),
 full_month_name_regexp = #{MONTHNAMES .compact.join('|')};
 function match1(match) { return match[1]; }
 function match2(match) { return match[2]; }
 function match3(match) { return match[3]; }
 function match4(match) { return match[4]; }
 // Converts passed short year (0..99)
 // to a 4-digits year in the range (1969..2068)
 function fromShortYear(fn) {
 return function(match) {
 var short_year = fn(match);
 if (short_year >= 69) {
 short_year += 1900;
 } else {
 short_year += 2000;
 }
 return short_year;
 }
 }
 // Converts month abbr (nov) to a month number
 function fromMonthAbbr(fn) {
 return function(match) {
 var abbr = fn(match).toLowerCase();
 return #{ABBR_MONTHNAMES }.indexOf(abbr) + 1;
 }
 }
 function toInt(fn) {
 return function(match) {
 var value = fn(match);
 return parseInt(value, 10);
 }
 }
 // Depending on the 'comp' value appends 20xx to a passed year
 function to2000(fn) {
 return function(match) {
 var value = fn(match);
 if (comp) {
 return value + 2000;
 } else {
 return value;
 }
 }
 }
 // Converts passed week day name to a day number
 function fromDayName(fn) {
 return function(match) {
 var dayname = fn(match),
 wday = #{DAYNAMES .map(&:downcase)}.indexOf(#{`dayname`.downcase});
 return current_day - current_wday + wday;
 }
 }
 // Converts passed month name to a month number
 function fromFullMonthName(fn) {
 return function(match) {
 var month_name = fn(match);
 return #{MONTHNAMES .compact.map(&:downcase)}.indexOf(#{`month_name`.downcase}) + 1;
 }
 }
 var rules = [
 {
 // DD as month day number
 regexp: /^(\d{2})$/,
 year: current_year,
 month: current_month,
 day: toInt(match1)
 },
 {
 // DDD as year day number
 regexp: /^(\d{3})$/,
 year: current_year,
 month: 0,
 day: toInt(match1)
 },
 {
 // MMDD as month and day
 regexp: /^(\d{2})(\d{2})$/,
 year: current_year,
 month: toInt(match1),
 day: toInt(match2)
 },
 {
 // YYDDD as year and day number in 1969--2068
 regexp: /^(\d{2})(\d{3})$/,
 year: fromShortYear(toInt(match1)),
 month: 0,
 day: toInt(match2)
 },
 {
 // YYMMDD as year, month and day in 1969--2068
 regexp: /^(\d{2})(\d{2})(\d{2})$/,
 year: fromShortYear(toInt(match1)),
 month: toInt(match2),
 day: toInt(match3)
 },
 {
 // YYYYDDD as year and day number
 regexp: /^(\d{4})(\d{3})$/,
 year: toInt(match1),
 month: 0,
 day: toInt(match2)
 },
 {
 // YYYYMMDD as year, month and day number
 regexp: /^(\d{4})(\d{2})(\d{2})$/,
 year: toInt(match1),
 month: toInt(match2),
 day: toInt(match3)
 },
 {
 // mmm YYYY
 regexp: /^([a-z]{3})[\s\.\/\-](\d{3,4})$/,
 year: toInt(match2),
 month: fromMonthAbbr(match1),
 day: 1
 },
 {
 // DD mmm YYYY
 regexp: /^(\d{1,2})[\s\.\/\-]([a-z]{3})[\s\.\/\-](\d{3,4})$/i,
 year: toInt(match3),
 month: fromMonthAbbr(match2),
 day: toInt(match1)
 },
 {
 // mmm DD YYYY
 regexp: /^([a-z]{3})[\s\.\/\-](\d{1,2})[\s\.\/\-](\d{3,4})$/i,
 year: toInt(match3),
 month: fromMonthAbbr(match1),
 day: toInt(match2)
 },
 {
 // YYYY mmm DD
 regexp: /^(\d{3,4})[\s\.\/\-]([a-z]{3})[\s\.\/\-](\d{1,2})$/i,
 year: toInt(match1),
 month: fromMonthAbbr(match2),
 day: toInt(match3)
 },
 {
 // YYYY-MM-DD YYYY/MM/DD YYYY.MM.DD
 regexp: /^(\-?\d{3,4})[\s\.\/\-](\d{1,2})[\s\.\/\-](\d{1,2})$/,
 year: toInt(match1),
 month: toInt(match2),
 day: toInt(match3)
 },
 {
 // YY-MM-DD
 regexp: /^(\d{2})[\s\.\/\-](\d{1,2})[\s\.\/\-](\d{1,2})$/,
 year: to2000(toInt(match1)),
 month: toInt(match2),
 day: toInt(match3)
 },
 {
 // DD-MM-YYYY
 regexp: /^(\d{1,2})[\s\.\/\-](\d{1,2})[\s\.\/\-](\-?\d{3,4})$/,
 year: toInt(match3),
 month: toInt(match2),
 day: toInt(match1)
 },
 {
 // ddd
 regexp: new RegExp("^(" + #{DAYNAMES .join('|')} + ")$", 'i'),
 year: current_year,
 month: current_month,
 day: fromDayName(match1)
 },
 {
 // monthname daynumber YYYY
 regexp: new RegExp("^(" + full_month_name_regexp + ")[\\s\\.\\/\\-](\\d{1,2})(th|nd|rd)[\\s\\.\\/\\-](\\-?\\d{3,4})$", "i"),
 year: toInt(match4),
 month: fromFullMonthName(match1),
 day: toInt(match2)
 },
 {
 // monthname daynumber
 regexp: new RegExp("^(" + full_month_name_regexp + ")[\\s\\.\\/\\-](\\d{1,2})(th|nd|rd)", "i"),
 year: current_year,
 month: fromFullMonthName(match1),
 day: toInt(match2)
 },
 {
 // daynumber monthname YYYY
 regexp: new RegExp("^(\\d{1,2})(th|nd|rd)[\\s\\.\\/\\-](" + full_month_name_regexp + ")[\\s\\.\\/\\-](\\-?\\d{3,4})$", "i"),
 year: toInt(match4),
 month: fromFullMonthName(match3),
 day: toInt(match1)
 },
 {
 // YYYY monthname daynumber
 regexp: new RegExp("^(\\-?\\d{3,4})[\\s\\.\\/\\-](" + full_month_name_regexp + ")[\\s\\.\\/\\-](\\d{1,2})(th|nd|rd)$", "i"),
 year: toInt(match1),
 month: fromFullMonthName(match2),
 day: toInt(match3)
 }
 ]
 var rule, i, match;
 for (i = 0; i < rules.length; i++) {
 rule = rules[i];
 match = rule.regexp.exec(string);
 if (match) {
 var year = rule.year;
 if (typeof(year) === 'function') {
 year = year(match);
 }
 var month = rule.month;
 if (typeof(month) === 'function') {
 month = month(match) - 1
 }
 var day = rule.day;
 if (typeof(day) === 'function') {
 day = day(match);
 }
 var result = new Date(year, month, day);
 // an edge case, JS can't handle 'new Date(1)', minimal year is 1970
 if (year >= 0 && year <= 1970) {
 result.setFullYear(year);
 }
 return #{wrap `result`};
 }
 }
 }
 raise ArgumentError, 'invalid date'
end

272
273
274

# File 'opal/stdlib/date.rb', line 272
def today
 wrap `new Date()`
end

19
20
21
22
23
24

# File 'opal/stdlib/date.rb', line 19
def wrap(native)
 instance = allocate
 `#{instance}.start = #{ITALY }`
 `#{instance}.date = #{native}`
 instance
end

407
408
409

# File 'opal/stdlib/date.rb', line 407
def +(date)
 next_day(date)
end

398
399
400
401
402
403
404
405

# File 'opal/stdlib/date.rb', line 398
def -(date)
 %x{
 if (date.date) {
 return Math.round((#{@date} - #{date}.date) / (1000 * 60 * 60 * 24));
 }
 }
 prev_day(date)
end

330
331
332
333
334

# File 'opal/stdlib/date.rb', line 330
def <<(n)
 `if (!n.$$is_number) #{raise ::TypeError}`
 prev_month(n)
end

298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322

# File 'opal/stdlib/date.rb', line 298
def <=>(other)
 %x{
 if (other.$$is_number) {
 return #{jd <=> other}
 }
 if (#{::Date  === other}) {
 var a = #{@date}, b = #{other}.date;
 if (!Opal.is_a(#{self}, #{::DateTime })) a.setHours(0, 0, 0, 0);
 if (!Opal.is_a(#{other}, #{::DateTime })) b.setHours(0, 0, 0, 0);
 if (a < b) {
 return -1;
 }
 else if (a > b) {
 return 1;
 }
 else {
 return 0;
 }
 } else {
 return nil;
 }
 }
end

324
325
326
327
328

# File 'opal/stdlib/date.rb', line 324
def >>(n)
 `if (!n.$$is_number) #{raise ::TypeError}`
 self << -n
end

205
206
207

# File 'opal/stdlib/json.rb', line 205
def as_json
 to_s
end

336
337
338
339
340

# File 'opal/stdlib/date.rb', line 336
def clone
 date = Date .wrap (@date.dup)
 `date.start = #{@start}`
 date
end

520
521
522

# File 'opal/stdlib/date.rb', line 520
def cwday
 `#{@date}.getDay() || 7`
end

524
525
526
527
528
529
530
531

# File 'opal/stdlib/date.rb', line 524
def cweek
 %x{
 var d = new Date(#{@date});
 d.setHours(0,0,0);
 d.setDate(d.getDate()+4-(d.getDay()||7));
 return Math.ceil((((d-new Date(d.getFullYear(),0,1))/8.64e7)+1)/7);
 }
end

516
517
518

# File 'opal/stdlib/date.rb', line 516
def downto(min, &block)
 step(min, -1, &block)
end

348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382

# File 'opal/stdlib/date.rb', line 348
def jd
 %x{
 //Adapted from http://www.physics.sfasu.edu/astro/javascript/julianday.html
 var mm = #{@date}.getMonth() + 1,
 dd = #{@date}.getDate(),
 yy = #{@date}.getFullYear(),
 hr = 12, mn = 0, sc = 0,
 ggg, s, a, j1, jd;
 hr = hr + (mn / 60) + (sc/3600);
 ggg = 1;
 if (yy <= 1585) {
 ggg = 0;
 }
 jd = -1 * Math.floor(7 * (Math.floor((mm + 9) / 12) + yy) / 4);
 s = 1;
 if ((mm - 9) < 0) {
 s =- 1;
 }
 a = Math.abs(mm - 9);
 j1 = Math.floor(yy + s * Math.floor(a / 7));
 j1 = -1 * Math.floor((Math.floor(j1 / 100) + 1) * 3 / 4);
 jd = jd + Math.floor(275 * mm / 9) + dd + (ggg * j1);
 jd = jd + 1721027 + 2 * ggg + 367 * yy - 0.5;
 jd = jd + (hr / 24);
 return jd;
 }
end

384
385
386

# File 'opal/stdlib/date.rb', line 384
def julian?
 `#{@date} < new Date(1582, 10 - 1, 15, 12)`
end

388
389
390
391
392

# File 'opal/stdlib/date.rb', line 388
def new_start(start)
 new_date = clone
 `new_date.start = start`
 new_date
end

394
395
396

# File 'opal/stdlib/date.rb', line 394
def next
 self + 1
end

424
425
426
427

# File 'opal/stdlib/date.rb', line 424
def next_day(n = 1)
 `if (!n.$$is_number) #{raise ::TypeError}`
 prev_day(-n)
end

440
441
442
443

# File 'opal/stdlib/date.rb', line 440
def next_month(n = 1)
 `if (!n.$$is_number) #{raise ::TypeError}`
 prev_month(-n)
end

450
451
452
453

# File 'opal/stdlib/date.rb', line 450
def next_year(years = 1)
 `if (!years.$$is_number) #{raise ::TypeError}`
 prev_year(-years)
end

411
412
413
414
415
416
417
418
419
420
421
422

# File 'opal/stdlib/date.rb', line 411
def prev_day(n = 1)
 %x{
 if (n.$$is_number) {
 var result = #{clone};
 result.date.setDate(#{@date}.getDate() - n);
 return result;
 }
 else {
 #{raise ::TypeError};
 }
 }
end

429
430
431
432
433
434
435
436
437
438

# File 'opal/stdlib/date.rb', line 429
def prev_month(n = 1)
 %x{
 if (!n.$$is_number) #{raise ::TypeError}
 var result = #{clone}, date = result.date, cur = date.getDate();
 date.setDate(1);
 date.setMonth(date.getMonth() - n);
 date.setDate(Math.min(cur, #{Date ._days_in_month (`date.getFullYear()`, `date.getMonth()`)}));
 return result;
 }
end

445
446
447
448

# File 'opal/stdlib/date.rb', line 445
def prev_year(years = 1)
 `if (!years.$$is_number) #{raise ::TypeError}`
 self.class.new(year - years, month, day)
end

490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510

# File 'opal/stdlib/date.rb', line 490
def step(limit, step = 1, &block)
 steps_count = (limit - self).to_i
 steps = if steps_count * step < 0
 []
 elsif steps_count < 0
 (0..-steps_count).step(step.abs).map(&:-@).reverse
 else
 (0..steps_count).step(step.abs)
 end
 result = steps.map { |i| self + i }
 if block_given?
 result.each { |i| yield(i) }
 self
 else
 result
 end
end

455
456
457
458
459
460
461
462
463

# File 'opal/stdlib/date.rb', line 455
def strftime(format = '')
 %x{
 if (format == '') {
 return #{to_s};
 }
 return #{@date.strftime(format)}}
end

478
479
480

# File 'opal/stdlib/date.rb', line 478
def to_date
 self
end

482
483
484

# File 'opal/stdlib/date.rb', line 482
def to_datetime
 DateTime .new (year, month, day)
end

201
202
203

# File 'opal/stdlib/json.rb', line 201
def to_json
 to_s.to_json
end

486
487
488

# File 'opal/stdlib/date.rb', line 486
def to_n
 @date
end

474
475
476

# File 'opal/stdlib/date.rb', line 474
def to_time
 Time .new(year, month, day)
end

512
513
514

# File 'opal/stdlib/date.rb', line 512
def upto(max, &block)
 step(max, 1, &block)
end