c214cd1350e050c457bfe3546533dadd1c0c4cec
1 #
2 # Copyright (c) 2001 Bizar Software Pty Ltd (http://www.bizarsoftware.com.au/)
3 # This module is free software, and you may redistribute it and/or modify
4 # under the same terms as Python, so long as this copyright message and
5 # disclaimer are retained in their original form.
6 #
7 # IN NO EVENT SHALL BIZAR SOFTWARE PTY LTD BE LIABLE TO ANY PARTY FOR
8 # DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING
9 # OUT OF THE USE OF THIS CODE, EVEN IF THE AUTHOR HAS BEEN ADVISED OF THE
10 # POSSIBILITY OF SUCH DAMAGE.
11 #
12 # BIZAR SOFTWARE PTY LTD SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
13 # BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
14 # FOR A PARTICULAR PURPOSE. THE CODE PROVIDED HEREUNDER IS ON AN "AS IS"
15 # BASIS, AND THERE IS NO OBLIGATION WHATSOEVER TO PROVIDE MAINTENANCE,
16 # SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
17 #
18 # $Id: date.py,v 1.47 2003-03-10 00:22:20 richard Exp $
20 __doc__ = """
21 Date, time and time interval handling.
22 """
24 import time, re, calendar, types
25 from i18n import _
27 class Date:
28 '''
29 As strings, date-and-time stamps are specified with the date in
30 international standard format (yyyy-mm-dd) joined to the time
31 (hh:mm:ss) by a period ("."). Dates in this form can be easily compared
32 and are fairly readable when printed. An example of a valid stamp is
33 "2000-06-24.13:03:59". We'll call this the "full date format". When
34 Timestamp objects are printed as strings, they appear in the full date
35 format with the time always given in GMT. The full date format is
36 always exactly 19 characters long.
38 For user input, some partial forms are also permitted: the whole time
39 or just the seconds may be omitted; and the whole date may be omitted
40 or just the year may be omitted. If the time is given, the time is
41 interpreted in the user's local time zone. The Date constructor takes
42 care of these conversions. In the following examples, suppose that yyyy
43 is the current year, mm is the current month, and dd is the current day
44 of the month; and suppose that the user is on Eastern Standard Time.
46 "2000-04-17" means <Date 2000-04-17.00:00:00>
47 "01-25" means <Date yyyy-01-25.00:00:00>
48 "2000-04-17.03:45" means <Date 2000-04-17.08:45:00>
49 "08-13.22:13" means <Date yyyy-08-14.03:13:00>
50 "11-07.09:32:43" means <Date yyyy-11-07.14:32:43>
51 "14:25" means <Date yyyy-mm-dd.19:25:00>
52 "8:47:11" means <Date yyyy-mm-dd.13:47:11>
53 "." means "right now"
55 The Date class should understand simple date expressions of the form
56 stamp + interval and stamp - interval. When adding or subtracting
57 intervals involving months or years, the components are handled
58 separately. For example, when evaluating "2000-06-25 + 1m 10d", we
59 first add one month to get 2000-07-25, then add 10 days to get
60 2000-08-04 (rather than trying to decide whether 1m 10d means 38 or 40
61 or 41 days).
63 Example usage:
64 >>> Date(".")
65 <Date 2000-06-26.00:34:02>
66 >>> _.local(-5)
67 "2000-06-25.19:34:02"
68 >>> Date(". + 2d")
69 <Date 2000-06-28.00:34:02>
70 >>> Date("1997-04-17", -5)
71 <Date 1997-04-17.00:00:00>
72 >>> Date("01-25", -5)
73 <Date 2000-01-25.00:00:00>
74 >>> Date("08-13.22:13", -5)
75 <Date 2000-08-14.03:13:00>
76 >>> Date("14:25", -5)
77 <Date 2000-06-25.19:25:00>
79 The date format 'yyyymmddHHMMSS' (year, month, day, hour,
80 minute, second) is the serialisation format returned by the serialise()
81 method, and is accepted as an argument on instatiation.
82 '''
83 def __init__(self, spec='.', offset=0):
84 """Construct a date given a specification and a time zone offset.
86 'spec' is a full date or a partial form, with an optional
87 added or subtracted interval. Or a date 9-tuple.
88 'offset' is the local time zone offset from GMT in hours.
89 """
90 if type(spec) == type(''):
91 self.set(spec, offset=offset)
92 else:
93 y,m,d,H,M,S,x,x,x = spec
94 ts = calendar.timegm((y,m,d,H+offset,M,S,0,0,0))
95 self.year, self.month, self.day, self.hour, self.minute, \
96 self.second, x, x, x = time.gmtime(ts)
98 def addInterval(self, interval):
99 ''' Add the interval to this date, returning the date tuple
100 '''
101 # do the basic calc
102 sign = interval.sign
103 year = self.year + sign * interval.year
104 month = self.month + sign * interval.month
105 day = self.day + sign * interval.day
106 hour = self.hour + sign * interval.hour
107 minute = self.minute + sign * interval.minute
108 second = self.second + sign * interval.second
110 # now cope with under- and over-flow
111 # first do the time
112 while (second < 0 or second > 59 or minute < 0 or minute > 59 or
113 hour < 0 or hour > 59):
114 if second < 0: minute -= 1; second += 60
115 elif second > 59: minute += 1; second -= 60
116 if minute < 0: hour -= 1; minute += 60
117 elif minute > 59: hour += 1; minute -= 60
118 if hour < 0: day -= 1; hour += 24
119 elif hour > 59: day += 1; hour -= 24
121 # fix up the month so we're within range
122 while month < 1 or month > 12:
123 if month < 1: year -= 1; month += 12
124 if month > 12: year += 1; month -= 12
126 # now do the days, now that we know what month we're in
127 mdays = calendar.mdays
128 if month == 2 and calendar.isleap(year): month_days = 29
129 else: month_days = mdays[month]
130 while month < 1 or month > 12 or day < 0 or day > month_days:
131 # now to day under/over
132 if day < 0: month -= 1; day += month_days
133 elif day > month_days: month += 1; day -= month_days
135 # possibly fix up the month so we're within range
136 while month < 1 or month > 12:
137 if month < 1: year -= 1; month += 12
138 if month > 12: year += 1; month -= 12
140 # re-figure the number of days for this month
141 if month == 2 and calendar.isleap(year): month_days = 29
142 else: month_days = mdays[month]
143 return (year, month, day, hour, minute, second, 0, 0, 0)
145 def applyInterval(self, interval):
146 ''' Apply the interval to this date
147 '''
148 self.year, self.month, self.day, self.hour, self.minute, \
149 self.second, x, x, x = self.addInterval(interval)
151 def __add__(self, interval):
152 """Add an interval to this date to produce another date.
153 """
154 return Date(self.addInterval(interval))
156 # deviates from spec to allow subtraction of dates as well
157 def __sub__(self, other):
158 """ Subtract:
159 1. an interval from this date to produce another date.
160 2. a date from this date to produce an interval.
161 """
162 if isinstance(other, Interval):
163 other = Interval(other.get_tuple())
164 other.sign *= -1
165 return self.__add__(other)
167 assert isinstance(other, Date), 'May only subtract Dates or Intervals'
169 # TODO this code will fall over laughing if the dates cross
170 # leap years, phases of the moon, ....
171 a = calendar.timegm((self.year, self.month, self.day, self.hour,
172 self.minute, self.second, 0, 0, 0))
173 b = calendar.timegm((other.year, other.month, other.day,
174 other.hour, other.minute, other.second, 0, 0, 0))
175 diff = a - b
176 if diff < 0:
177 sign = 1
178 diff = -diff
179 else:
180 sign = -1
181 S = diff%60
182 M = (diff/60)%60
183 H = (diff/(60*60))%60
184 if H>1: S = 0
185 d = (diff/(24*60*60))%30
186 if d>1: H = S = M = 0
187 m = (diff/(30*24*60*60))%12
188 if m>1: H = S = M = 0
189 y = (diff/(365*24*60*60))
190 if y>1: d = H = S = M = 0
191 return Interval((y, m, d, H, M, S), sign=sign)
193 def __cmp__(self, other):
194 """Compare this date to another date."""
195 if other is None:
196 return 1
197 for attr in ('year', 'month', 'day', 'hour', 'minute', 'second'):
198 if not hasattr(other, attr):
199 return 1
200 r = cmp(getattr(self, attr), getattr(other, attr))
201 if r: return r
202 return 0
204 def __str__(self):
205 """Return this date as a string in the yyyy-mm-dd.hh:mm:ss format."""
206 return '%4d-%02d-%02d.%02d:%02d:%02d'%(self.year, self.month, self.day,
207 self.hour, self.minute, self.second)
209 def pretty(self, format='%d %B %Y'):
210 ''' print up the date date using a pretty format...
212 Note that if the day is zero, and the day appears first in the
213 format, then the day number will be removed from output.
214 '''
215 str = time.strftime(format, (self.year, self.month, self.day,
216 self.hour, self.minute, self.second, 0, 0, 0))
217 # handle zero day by removing it
218 if format.startswith('%d') and str[0] == '0':
219 return ' ' + str[1:]
220 return str
222 def set(self, spec, offset=0, date_re=re.compile(r'''
223 (((?P<y>\d\d\d\d)-)?((?P<m>\d\d?)-(?P<d>\d\d?))?)? # yyyy-mm-dd
224 (?P<n>\.)? # .
225 (((?P<H>\d?\d):(?P<M>\d\d))?(:(?P<S>\d\d))?)? # hh:mm:ss
226 (?P<o>.+)? # offset
227 ''', re.VERBOSE), serialised_re=re.compile(r'''
228 (\d{4})(\d\d)(\d\d)(\d\d)(\d\d)(\d\d)
229 ''', re.VERBOSE)):
230 ''' set the date to the value in spec
231 '''
232 m = serialised_re.match(spec)
233 if m is not None:
234 # we're serialised - easy!
235 self.year, self.month, self.day, self.hour, self.minute, \
236 self.second = map(int, m.groups()[:6])
237 return
239 # not serialised data, try usual format
240 m = date_re.match(spec)
241 if m is None:
242 raise ValueError, _('Not a date spec: [[yyyy-]mm-dd].'
243 '[[h]h:mm[:ss]][offset]')
245 info = m.groupdict()
247 # get the current date as our default
248 y,m,d,H,M,S,x,x,x = time.gmtime(time.time())
250 # override year, month, day parts
251 if info['m'] is not None and info['d'] is not None:
252 m = int(info['m'])
253 d = int(info['d'])
254 if info['y'] is not None:
255 y = int(info['y'])
256 # time defaults to 00:00:00 GMT - offset (local midnight)
257 H = -offset
258 M = S = 0
260 # override hour, minute, second parts
261 if info['H'] is not None and info['M'] is not None:
262 H = int(info['H']) - offset
263 M = int(info['M'])
264 S = 0
265 if info['S'] is not None: S = int(info['S'])
267 # now handle the adjustment of hour
268 ts = calendar.timegm((y,m,d,H,M,S,0,0,0))
269 self.year, self.month, self.day, self.hour, self.minute, \
270 self.second, x, x, x = time.gmtime(ts)
272 if info.get('o', None):
273 self.applyInterval(Interval(info['o']))
275 def __repr__(self):
276 return '<Date %s>'%self.__str__()
278 def local(self, offset):
279 """ Return this date as yyyy-mm-dd.hh:mm:ss in a local time zone.
280 """
281 return Date((self.year, self.month, self.day, self.hour + offset,
282 self.minute, self.second, 0, 0, 0))
284 def get_tuple(self):
285 return (self.year, self.month, self.day, self.hour, self.minute,
286 self.second, 0, 0, 0)
288 def serialise(self):
289 return '%4d%02d%02d%02d%02d%02d'%(self.year, self.month,
290 self.day, self.hour, self.minute, self.second)
292 class Interval:
293 '''
294 Date intervals are specified using the suffixes "y", "m", and "d". The
295 suffix "w" (for "week") means 7 days. Time intervals are specified in
296 hh:mm:ss format (the seconds may be omitted, but the hours and minutes
297 may not).
299 "3y" means three years
300 "2y 1m" means two years and one month
301 "1m 25d" means one month and 25 days
302 "2w 3d" means two weeks and three days
303 "1d 2:50" means one day, two hours, and 50 minutes
304 "14:00" means 14 hours
305 "0:04:33" means four minutes and 33 seconds
307 Example usage:
308 >>> Interval(" 3w 1 d 2:00")
309 <Interval + 22d 2:00>
310 >>> Date(". + 2d") + Interval("- 3w")
311 <Date 2000-06-07.00:34:02>
312 >>> Interval('1:59:59') + Interval('00:00:01')
313 <Interval + 2:00>
314 >>> Interval('2:00') + Interval('- 00:00:01')
315 <Interval + 1:59:59>
316 >>> Interval('1y')/2
317 <Interval + 6m>
318 >>> Interval('1:00')/2
319 <Interval + 0:30>
321 Interval arithmetic is handled in a couple of special ways, trying
322 to cater for the most common cases. Fundamentally, Intervals which
323 have both date and time parts will result in strange results in
324 arithmetic - because of the impossibility of handling day->month->year
325 over- and under-flows. Intervals may also be divided by some number.
327 Intervals are added to Dates in order of:
328 seconds, minutes, hours, years, months, days
330 Calculations involving months (eg '+2m') have no effect on days - only
331 days (or over/underflow from hours/mins/secs) will do that, and
332 days-per-month and leap years are accounted for. Leap seconds are not.
334 The interval format 'syyyymmddHHMMSS' (sign, year, month, day, hour,
335 minute, second) is the serialisation format returned by the serialise()
336 method, and is accepted as an argument on instatiation.
338 TODO: more examples, showing the order of addition operation
339 '''
340 def __init__(self, spec, sign=1):
341 """Construct an interval given a specification."""
342 if type(spec) == type(''):
343 self.set(spec)
344 else:
345 if len(spec) == 7:
346 self.sign, self.year, self.month, self.day, self.hour, \
347 self.minute, self.second = spec
348 else:
349 # old, buggy spec form
350 self.sign = sign
351 self.year, self.month, self.day, self.hour, self.minute, \
352 self.second = spec
354 def __cmp__(self, other):
355 """Compare this interval to another interval."""
356 if other is None:
357 # we are always larger than None
358 return 1
359 for attr in 'sign year month day hour minute second'.split():
360 r = cmp(getattr(self, attr), getattr(other, attr))
361 if r:
362 return r
363 return 0
365 def __str__(self):
366 """Return this interval as a string."""
367 l = []
368 if self.year: l.append('%sy'%self.year)
369 if self.month: l.append('%sm'%self.month)
370 if self.day: l.append('%sd'%self.day)
371 if self.second:
372 l.append('%d:%02d:%02d'%(self.hour, self.minute, self.second))
373 elif self.hour or self.minute:
374 l.append('%d:%02d'%(self.hour, self.minute))
375 if l:
376 l.insert(0, {1:'+', -1:'-'}[self.sign])
377 return ' '.join(l)
379 def __add__(self, other):
380 if isinstance(other, Date):
381 # the other is a Date - produce a Date
382 return Date(other.addInterval(self))
383 elif isinstance(other, Interval):
384 # add the other Interval to this one
385 a = self.get_tuple()
386 as = a[0]
387 b = other.get_tuple()
388 bs = b[0]
389 i = [as*x + bs*y for x,y in zip(a[1:],b[1:])]
390 i.insert(0, 1)
391 i = fixTimeOverflow(i)
392 return Interval(i)
393 # nope, no idea what to do with this other...
394 raise TypeError, "Can't add %r"%other
396 def __sub__(self, other):
397 if isinstance(other, Date):
398 # the other is a Date - produce a Date
399 interval = Interval(self.get_tuple())
400 interval.sign *= -1
401 return Date(other.addInterval(interval))
402 elif isinstance(other, Interval):
403 # add the other Interval to this one
404 a = self.get_tuple()
405 as = a[0]
406 b = other.get_tuple()
407 bs = b[0]
408 i = [as*x - bs*y for x,y in zip(a[1:],b[1:])]
409 i.insert(0, 1)
410 i = fixTimeOverflow(i)
411 return Interval(i)
412 # nope, no idea what to do with this other...
413 raise TypeError, "Can't add %r"%other
415 def __div__(self, other):
416 ''' Divide this interval by an int value.
418 Can't divide years and months sensibly in the _same_
419 calculation as days/time, so raise an error in that situation.
420 '''
421 try:
422 other = float(other)
423 except TypeError:
424 raise ValueError, "Can only divide Intervals by numbers"
426 y, m, d, H, M, S = (self.year, self.month, self.day,
427 self.hour, self.minute, self.second)
428 if y or m:
429 if d or H or M or S:
430 raise ValueError, "Can't divide Interval with date and time"
431 months = self.year*12 + self.month
432 months *= self.sign
434 months = int(months/other)
436 sign = months<0 and -1 or 1
437 m = months%12
438 y = months / 12
439 return Interval((sign, y, m, 0, 0, 0, 0))
441 else:
442 # handle a day/time division
443 seconds = S + M*60 + H*60*60 + d*60*60*24
444 seconds *= self.sign
446 seconds = int(seconds/other)
448 sign = seconds<0 and -1 or 1
449 seconds *= sign
450 S = seconds%60
451 seconds /= 60
452 M = seconds%60
453 seconds /= 60
454 H = seconds%24
455 d = seconds / 24
456 return Interval((sign, 0, 0, d, H, M, S))
458 def set(self, spec, interval_re=re.compile('''
459 \s*(?P<s>[-+])? # + or -
460 \s*((?P<y>\d+\s*)y)? # year
461 \s*((?P<m>\d+\s*)m)? # month
462 \s*((?P<w>\d+\s*)w)? # week
463 \s*((?P<d>\d+\s*)d)? # day
464 \s*(((?P<H>\d+):(?P<M>\d+))?(:(?P<S>\d+))?)? # time
465 \s*''', re.VERBOSE), serialised_re=re.compile('''
466 (?P<s>[+-])?1?(?P<y>([ ]{3}\d|\d{4}))(?P<m>\d{2})(?P<d>\d{2})
467 (?P<H>\d{2})(?P<M>\d{2})(?P<S>\d{2})''', re.VERBOSE)):
468 ''' set the date to the value in spec
469 '''
470 self.year = self.month = self.week = self.day = self.hour = \
471 self.minute = self.second = 0
472 self.sign = 1
473 m = serialised_re.match(spec)
474 if not m:
475 m = interval_re.match(spec)
476 if not m:
477 raise ValueError, _('Not an interval spec: [+-] [#y] [#m] [#w] '
478 '[#d] [[[H]H:MM]:SS]')
480 info = m.groupdict()
481 for group, attr in {'y':'year', 'm':'month', 'w':'week', 'd':'day',
482 'H':'hour', 'M':'minute', 'S':'second'}.items():
483 if info.get(group, None) is not None:
484 setattr(self, attr, int(info[group]))
486 if self.week:
487 self.day = self.day + self.week*7
489 if info['s'] is not None:
490 self.sign = {'+':1, '-':-1}[info['s']]
492 def __repr__(self):
493 return '<Interval %s>'%self.__str__()
495 def pretty(self):
496 ''' print up the date date using one of these nice formats..
497 '''
498 if self.year:
499 if self.year == 1:
500 return _('1 year')
501 else:
502 return _('%(number)s years')%{'number': self.year}
503 elif self.month or self.day > 13:
504 days = (self.month * 30) + self.day
505 if days > 28:
506 if int(days/30) > 1:
507 s = _('%(number)s months')%{'number': int(days/30)}
508 else:
509 s = _('1 month')
510 else:
511 s = _('%(number)s weeks')%{'number': int(days/7)}
512 elif self.day > 7:
513 s = _('1 week')
514 elif self.day > 1:
515 s = _('%(number)s days')%{'number': self.day}
516 elif self.day == 1 or self.hour > 12:
517 if self.sign > 0:
518 return _('tomorrow')
519 else:
520 return _('yesterday')
521 elif self.hour > 1:
522 s = _('%(number)s hours')%{'number': self.hour}
523 elif self.hour == 1:
524 if self.minute < 15:
525 s = _('an hour')
526 elif self.minute/15 == 2:
527 s = _('1 1/2 hours')
528 else:
529 s = _('1 %(number)s/4 hours')%{'number': self.minute/15}
530 elif self.minute < 1:
531 if self.sign > 0:
532 return _('in a moment')
533 else:
534 return _('just now')
535 elif self.minute == 1:
536 s = _('1 minute')
537 elif self.minute < 15:
538 s = _('%(number)s minutes')%{'number': self.minute}
539 elif int(self.minute/15) == 2:
540 s = _('1/2 an hour')
541 else:
542 s = _('%(number)s/4 hour')%{'number': int(self.minute/15)}
543 if self.sign < 0:
544 s = s + _(' ago')
545 else:
546 s = _('in') + s
547 return s
549 def get_tuple(self):
550 return (self.sign, self.year, self.month, self.day, self.hour,
551 self.minute, self.second)
553 def serialise(self):
554 sign = self.sign > 0 and '+' or '-'
555 return '%s%04d%02d%02d%02d%02d%02d'%(sign, self.year, self.month,
556 self.day, self.hour, self.minute, self.second)
558 def fixTimeOverflow(time):
559 ''' Handle the overflow in the time portion (H, M, S) of "time":
560 (sign, y,m,d,H,M,S)
562 Overflow and underflow will at most affect the _days_ portion of
563 the date. We do not overflow days to months as we don't know _how_
564 to, generally.
565 '''
566 # XXX we could conceivably use this function for handling regular dates
567 # XXX too - we just need to interrogate the month/year for the day
568 # XXX overflow...
570 sign, y, m, d, H, M, S = time
571 seconds = sign * (S + M*60 + H*60*60 + d*60*60*24)
572 if seconds:
573 sign = seconds<0 and -1 or 1
574 seconds *= sign
575 S = seconds%60
576 seconds /= 60
577 M = seconds%60
578 seconds /= 60
579 H = seconds%24
580 d = seconds / 24
581 else:
582 months = y*12 + m
583 sign = months<0 and -1 or 1
584 months *= sign
585 m = months%12
586 y = months/12
588 return (sign, y, m, d, H, M, S)
590 class Range:
591 """
592 Represents range between two values
593 Ranges can be created using one of theese two alternative syntaxes:
595 1. Native english syntax:
596 [[From] <value>][ To <value>]
597 Keywords "From" and "To" are case insensitive. Keyword "From" is optional.
599 2. "Geek" syntax:
600 [<value>][; <value>]
602 Either first or second <value> can be omitted in both syntaxes.
604 Examples (consider local time is Sat Mar 8 22:07:48 EET 2003):
605 >>> Range("from 2-12 to 4-2")
606 <Range from 2003-02-12.00:00:00 to 2003-04-02.00:00:00>
608 >>> Range("18:00 TO +2m")
609 <Range from 2003-03-08.18:00:00 to 2003-05-08.20:07:48>
611 >>> Range("12:00")
612 <Range from 2003-03-08.12:00:00 to None>
614 >>> Range("tO +3d")
615 <Range from None to 2003-03-11.20:07:48>
617 >>> Range("2002-11-10; 2002-12-12")
618 <Range from 2002-11-10.00:00:00 to 2002-12-12.00:00:00>
620 >>> Range("; 20:00 +1d")
621 <Range from None to 2003-03-09.20:00:00>
623 """
624 def __init__(self, spec, type, **params):
625 """Initializes Range of type <type> from given <spec> string.
627 Sets two properties - from_value and to_value. None assigned to any of
628 this properties means "infinitum" (-infinitum to from_value and
629 +infinitum to to_value)
630 """
631 self.range_type = type
632 re_range = r'(?:^|(?:from)?(.+?))(?:to(.+?)$|$)'
633 re_geek_range = r'(?:^|(.+?))(?:;(.+?)$|$)'
634 # Check which syntax to use
635 if spec.find(';') == -1:
636 # Native english
637 mch_range = re.search(re_range, spec.strip(), re.IGNORECASE)
638 else:
639 # Geek
640 mch_range = re.search(re_geek_range, spec.strip())
641 if mch_range:
642 self.from_value, self.to_value = mch_range.groups()
643 if self.from_value:
644 self.from_value = type(self.from_value.strip(), **params)
645 if self.to_value:
646 self.to_value = type(self.to_value.strip(), **params)
647 else:
648 raise ValueError, "Invalid range"
650 def __str__(self):
651 return "from %s to %s" % (self.from_value, self.to_value)
653 def __repr__(self):
654 return "<Range %s>" % self.__str__()
656 def test_range():
657 rspecs = ("from 2-12 to 4-2", "18:00 TO +2m", "12:00", "tO +3d",
658 "2002-11-10; 2002-12-12", "; 20:00 +1d")
659 for rspec in rspecs:
660 print '>>> Range("%s")' % rspec
661 print `Range(rspec, Date)`
662 print
664 def test():
665 intervals = (" 3w 1 d 2:00", " + 2d", "3w")
666 for interval in intervals:
667 print '>>> Interval("%s")'%interval
668 print `Interval(interval)`
670 dates = (".", "2000-06-25.19:34:02", ". + 2d", "1997-04-17", "01-25",
671 "08-13.22:13", "14:25")
672 for date in dates:
673 print '>>> Date("%s")'%date
674 print `Date(date)`
676 sums = ((". + 2d", "3w"), (".", " 3w 1 d 2:00"))
677 for date, interval in sums:
678 print '>>> Date("%s") + Interval("%s")'%(date, interval)
679 print `Date(date) + Interval(interval)`
681 if __name__ == '__main__':
682 test_range()
684 # vim: set filetype=python ts=4 sw=4 et si