1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
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
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
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
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
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
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
|
# delta.rb: Written by Tadayoshi Funaba 2004-2009
require 'date'
require 'date/delta/parser'
class Date
class Delta
include Comparable
UNIT_PREFIXES = {
'yotta' => Rational(10**24),
'zetta' => Rational(10**21),
'exa' => Rational(10**18),
'peta' => Rational(10**15),
'tera' => Rational(10**12),
'giga' => Rational(10**9),
'mega' => Rational(10**6),
'kilo' => Rational(10**3),
'hecto' => Rational(10**2),
'deca' => Rational(10**1),
'deka' => Rational(10**1),
'deci' => Rational(1, 10**1),
'centi' => Rational(1, 10**2),
'milli' => Rational(1, 10**3),
'decimilli' => Rational(1, 10**4),
'centimilli' => Rational(1, 10**5),
'micro' => Rational(1, 10**6),
'nano' => Rational(1, 10**9),
'millimicro' => Rational(1, 10**9),
'pico' => Rational(1, 10**12),
'micromicro' => Rational(1, 10**12),
'femto' => Rational(1, 10**15),
'atto' => Rational(1, 10**18),
'zepto' => Rational(1, 10**21),
'yocto' => Rational(1, 10**24)
}
IUNITS = {
'year' => Complex(0, 12),
'month' => Complex(0, 1)
}
RUNITS = {
'day' => Rational(1),
'week' => Rational(7),
'sennight' => Rational(7),
'fortnight' => Rational(14),
'hour' => Rational(1, 24),
'minute' => Rational(1, 1440),
'second' => Rational(1, 86400)
}
UNIT_PREFIXES.each do |k, v|
RUNITS[k + 'second'] = v * RUNITS['second']
end
remove_const :UNIT_PREFIXES
UNITS = {}
IUNITS.each do |k, v|
UNITS[k] = v
end
RUNITS.each do |k, v|
UNITS[k] = v
end
UNITS4KEY = {}
UNITS.each do |k, v|
UNITS4KEY[k] = UNITS4KEY[k + 's'] = v
end
UNITS4KEY['y'] = UNITS4KEY['years']
UNITS4KEY['yr'] = UNITS4KEY['years']
UNITS4KEY['yrs'] = UNITS4KEY['years']
UNITS4KEY['m'] = UNITS4KEY['months']
UNITS4KEY['mo'] = UNITS4KEY['months']
UNITS4KEY['mon'] = UNITS4KEY['months']
UNITS4KEY['mnth'] = UNITS4KEY['months']
UNITS4KEY['mnths'] = UNITS4KEY['months']
UNITS4KEY['w'] = UNITS4KEY['weeks']
UNITS4KEY['wk'] = UNITS4KEY['weeks']
UNITS4KEY['d'] = UNITS4KEY['days']
UNITS4KEY['dy'] = UNITS4KEY['days']
UNITS4KEY['dys'] = UNITS4KEY['days']
UNITS4KEY['h'] = UNITS4KEY['hours']
UNITS4KEY['hr'] = UNITS4KEY['hours']
UNITS4KEY['hrs'] = UNITS4KEY['hours']
UNITS4KEY['min'] = UNITS4KEY['minutes']
UNITS4KEY['mins'] = UNITS4KEY['minutes']
UNITS4KEY['s'] = UNITS4KEY['seconds']
UNITS4KEY['sec'] = UNITS4KEY['seconds']
UNITS4KEY['secs'] = UNITS4KEY['seconds']
UNITS4KEY['ms'] = UNITS4KEY['milliseconds']
UNITS4KEY['msec'] = UNITS4KEY['milliseconds']
UNITS4KEY['msecs'] = UNITS4KEY['milliseconds']
UNITS4KEY['milli'] = UNITS4KEY['milliseconds']
UNITS4KEY['us'] = UNITS4KEY['microseconds']
UNITS4KEY['usec'] = UNITS4KEY['microseconds']
UNITS4KEY['usecs'] = UNITS4KEY['microseconds']
UNITS4KEY['micro'] = UNITS4KEY['microseconds']
UNITS4KEY['ns'] = UNITS4KEY['nanoseconds']
UNITS4KEY['nsec'] = UNITS4KEY['nanoseconds']
UNITS4KEY['nsecs'] = UNITS4KEY['nanoseconds']
UNITS4KEY['nano'] = UNITS4KEY['nanoseconds']
def self.delta_to_dhms(delta)
fr = delta.imag.abs
y, fr = fr.divmod(12)
m, fr = fr.divmod(1)
if delta.imag < 0
y = -y
m = -m
end
fr = delta.real.abs
ss, fr = fr.divmod(SECONDS_IN_DAY) # 4p
d, ss = ss.divmod(86400)
h, ss = ss.divmod(3600)
min, s = ss.divmod(60)
if delta.real < 0
d = -d
h = -h
min = -min
s = -s
end
return y, m, d, h, min, s, fr
end
def self.dhms_to_delta(y, m, d, h, min, s, fr)
fr = 0 if fr == 0
Complex(0, y.to_i * 12 + m.to_i) +
Rational(d * 86400 + h * 3600 + min * 60 + (s + fr), 86400) # 4p
end
def initialize(delta)
@delta = delta
@__ca__ = {}
end
class << self; alias_method :new!, :new end
def self.new(arg=0, h=0, min=0, s=0)
if Hash === arg
d = Complex(0)
arg.each do |k, v|
k = k.to_s.downcase
unless UNITS4KEY[k]
raise ArgumentError, "unknown keyword #{k}"
end
d += v * UNITS4KEY[k]
end
else
d = dhms_to_delta(0, 0, arg, h, min, s, 0)
end
new!(d)
end
UNITS.each_key do |k|
module_eval <<-"end;"
def self.#{k}s(n=1)
new(:d=>n * UNITS['#{k}'])
end
end;
end
class << self; alias_method :mins, :minutes end
class << self; alias_method :secs, :seconds end
def self.parse(str)
d = begin (@@pa ||= Parser.new).parse(str)
rescue Racc::ParseError
raise ArgumentError, 'syntax error'
end
new!(d)
end
def self.diff(d1, d2) new(d1.ajd - d2.ajd) end
class << self
def once(*ids) # :nodoc: -- restricted
for id in ids
module_eval <<-"end;"
alias_method :__#{id.object_id}__, :#{id.to_s}
private :__#{id.object_id}__
def #{id.to_s}(*args)
@__ca__[#{id.object_id}] ||= __#{id.object_id}__(*args)
end
end;
end
end
private :once
end
def dhms() self.class.delta_to_dhms(@delta) end
once :dhms
def delta() @delta end
protected :delta
def years() dhms[0] end
def months() dhms[1] end
def days() dhms[2] end
def hours() dhms[3] end
def minutes() dhms[4] end
def seconds() dhms[5] end
def second_fractions() dhms[6] end
alias_method :mins, :minutes
alias_method :secs, :seconds
alias_method :sec_fractions, :second_fractions
RUNITS.each_key do |k|
module_eval <<-"end;"
def in_#{k}s(u=1)
if @delta.imag != 0
raise ArgumentError, "#{k}: #{self} has month"
end
@delta.real / (u * RUNITS['#{k}'])
end
end;
end
alias_method :in_mins, :in_minutes
alias_method :in_secs, :in_seconds
def zero?() @delta.zero? end
def nonzero?() unless zero? then self end end
def integer? () @delta.imag == 0 && @delta.real.integer? end
def -@ () self.class.new!(-@delta) end
def +@ () self.class.new!(+@delta) end
def dx_addsub(m, n)
case n
when Numeric; return self.class.new!(@delta.__send__(m, n))
when Delta; return self.class.new!(@delta.__send__(m, n.delta))
else
l, r = n.coerce(self)
return l.__send__(m, r)
end
end
private :dx_addsub
def + (n) dx_addsub(:+, n) end
def - (n) dx_addsub(:-, n) end
def dx_muldiv(m, n)
case n
when Numeric
return self.class.new!(@delta.__send__(m, n))
else
l, r = n.coerce(self)
return l.__send__(m, r)
end
end
private :dx_muldiv
def * (n) dx_muldiv(:*, n) end
def / (n) dx_muldiv(:/, n) end
def dx_conv1(m, n)
if @delta.imag != 0
raise ArgumentError, "#{m}: #{self} has month"
end
case n
when Numeric
return self.class.new!(Complex(@delta.real.__send__(m, n), 0))
else
l, r = n.coerce(self)
return l.__send__(m, r)
end
end
private :dx_conv1
def % (n) dx_conv1(:%, n) end
def div(n) dx_conv1(:div, n) end
def modulo(n) dx_conv1(:modulo, n) end
def divmod(n) [div(n), modulo(n)] end
def quotient(n)
if @delta.imag != 0
raise ArgumentError, "quotient: #{self} has month"
end
case n
when Numeric
return self.class.new!(Complex((@delta.real / n).truncate))
else
l, r = n.coerce(self)
return l.__send__(m, r)
end
end
def remainder(n) dx_conv1(:remainder, n) end
def quotrem(n) [quotient(n), remainder(n)] end
def ** (n) dx_conv1(:**, n) end
def quo(n) dx_muldiv(:quo, n) end
def <=> (other)
if @delta.imag != 0
raise ArgumentError, "<=>: #{self} has month"
end
case other
when Numeric; return @delta.real <=> other
when Delta; return @delta.real <=> other.delta.real
else
begin
l, r = other.coerce(self)
return l <=> r
rescue NoMethodError
end
end
nil
end
def == (other)
case other
when Numeric; return @delta == other
when Delta; return @delta == other
else
begin
l, r = other.coerce(self)
return l == r
rescue NoMethodError
end
end
nil
end
def coerce(other)
case other
when Numeric; return other, @delta
else
super
end
end
def eql? (other) Delta === other && self == other end
def hash() @delta.hash end
def dx_conv0(m)
if @delta.imag != 0
raise ArgumentError, "#{m}: #{self} has month"
end
@delta.real.__send__(m)
end
private :dx_conv0
def abs() dx_conv0(:abs) end
def ceil() dx_conv0(:ceil) end
def floor() dx_conv0(:floor) end
def round() dx_conv0(:round) end
def truncate() dx_conv0(:truncate) end
def to_i() dx_conv0(:to_i) end
def to_f() dx_conv0(:to_f) end
def to_r() dx_conv0(:to_r) end
def to_c() @delta end
alias_method :to_int, :to_i
def inspect() format('#<%s: %s (%s)>', self.class, to_s, @delta) end
def to_s
format(%(%s(%dd %.02d:%02d'%02d"%03d)%s(%dy %dm)), # '
if @delta.real < 0 then '-' else '+' end,
days.abs, hours.abs, mins.abs, secs.abs, sec_fractions.abs * 1000,
if @delta.imag < 0 then '-' else '+' end,
years.abs, months.abs)
end
def marshal_dump() @delta end
def marshal_load(a)
@delta = a
@__ca__ = {}
end
end
end
vsave = $VERBOSE
$VERBOSE = false
class Date
def + (n)
case n
when Numeric; return self.class.new!(@ajd + n, @of, @sg)
when Delta
d = n.__send__(:delta)
return (self >> d.imag) + d.real
end
raise TypeError, 'expected numeric'
end
def - (x)
case x
when Numeric; return self.class.new!(@ajd - x, @of, @sg)
when Date; return @ajd - x.ajd
when Delta
d = x.__send__(:delta)
return (self << d.imag) - d.real
end
raise TypeError, 'expected numeric'
end
end
$VERBOSE = vsave
|