Package Gnumed :: Package pycommon :: Module gmDateTime
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Source Code for Module Gnumed.pycommon.gmDateTime

   1  # -*- coding: utf-8 -*- 
   2   
   3  __doc__ = """ 
   4  GNUmed date/time handling. 
   5   
   6  This modules provides access to date/time handling 
   7  and offers an fuzzy timestamp implementation 
   8   
   9  It utilizes 
  10   
  11          - Python time 
  12          - Python datetime 
  13          - mxDateTime 
  14   
  15  Note that if you want locale-aware formatting you need to call 
  16   
  17          locale.setlocale(locale.LC_ALL, '') 
  18   
  19  somewhere before importing this script. 
  20   
  21  Note regarding UTC offsets 
  22  -------------------------- 
  23   
  24  Looking from Greenwich: 
  25          WEST (IOW "behind"): negative values 
  26          EAST (IOW "ahead"):  positive values 
  27   
  28  This is in compliance with what datetime.tzinfo.utcoffset() 
  29  does but NOT what time.altzone/time.timezone do ! 
  30   
  31  This module also implements a class which allows the 
  32  programmer to define the degree of fuzziness, uncertainty 
  33  or imprecision of the timestamp contained within. 
  34   
  35  This is useful in fields such as medicine where only partial 
  36  timestamps may be known for certain events. 
  37   
  38  Other useful links: 
  39   
  40          http://joda-time.sourceforge.net/key_instant.html 
  41  """ 
  42  #=========================================================================== 
  43  __author__ = "K. Hilbert <Karsten.Hilbert@gmx.net>" 
  44  __license__ = "GPL v2 or later (details at http://www.gnu.org)" 
  45   
  46  # stdlib 
  47  import sys, datetime as pyDT, time, os, re as regex, locale, logging 
  48   
  49   
  50  # 3rd party 
  51  #import mx.DateTime as mxDT 
  52   
  53   
  54  if __name__ == '__main__': 
  55          sys.path.insert(0, '../../') 
  56  #from Gnumed.pycommon import gmI18N 
  57   
  58   
  59  _log = logging.getLogger('gm.datetime') 
  60  #_log.info(u'mx.DateTime version: %s', mxDT.__version__) 
  61   
  62  dst_locally_in_use = None 
  63  dst_currently_in_effect = None 
  64   
  65  current_local_utc_offset_in_seconds = None 
  66  current_local_timezone_interval = None 
  67  current_local_iso_numeric_timezone_string = None 
  68  current_local_timezone_name = None 
  69  py_timezone_name = None 
  70  py_dst_timezone_name = None 
  71   
  72  gmCurrentLocalTimezone = 'gmCurrentLocalTimezone not initialized' 
  73   
  74   
  75  (       acc_years, 
  76          acc_months, 
  77          acc_weeks, 
  78          acc_days, 
  79          acc_hours, 
  80          acc_minutes, 
  81          acc_seconds, 
  82          acc_subseconds 
  83  ) = range(1,9) 
  84   
  85  _accuracy_strings = { 
  86          1: 'years', 
  87          2: 'months', 
  88          3: 'weeks', 
  89          4: 'days', 
  90          5: 'hours', 
  91          6: 'minutes', 
  92          7: 'seconds', 
  93          8: 'subseconds' 
  94  } 
  95   
  96  gregorian_month_length = { 
  97          1: 31, 
  98          2: 28,          # FIXME: make leap year aware 
  99          3: 31, 
 100          4: 30, 
 101          5: 31, 
 102          6: 30, 
 103          7: 31, 
 104          8: 31, 
 105          9: 30, 
 106          10: 31, 
 107          11: 30, 
 108          12: 31 
 109  } 
 110   
 111  avg_days_per_gregorian_year = 365 
 112  avg_days_per_gregorian_month = 30 
 113  avg_seconds_per_day = 24 * 60 * 60 
 114  days_per_week = 7 
 115   
 116  #=========================================================================== 
 117  # module init 
 118  #--------------------------------------------------------------------------- 
119 -def init():
120 121 # _log.debug('mx.DateTime.now(): [%s]' % mxDT.now()) 122 _log.debug('datetime.now() : [%s]' % pyDT.datetime.now()) 123 _log.debug('time.localtime() : [%s]' % str(time.localtime())) 124 _log.debug('time.gmtime() : [%s]' % str(time.gmtime())) 125 126 try: 127 _log.debug('$TZ: [%s]' % os.environ['TZ']) 128 except KeyError: 129 _log.debug('$TZ not defined') 130 131 _log.debug('time.daylight: [%s] (whether or not DST is locally used at all)' % time.daylight) 132 _log.debug('time.timezone: [%s] seconds' % time.timezone) 133 _log.debug('time.altzone : [%s] seconds' % time.altzone) 134 _log.debug('time.tzname : [%s / %s] (non-DST / DST)' % time.tzname) 135 # _log.debug('mx.DateTime.now().gmtoffset(): [%s]' % mxDT.now().gmtoffset()) 136 137 global py_timezone_name 138 py_timezone_name = time.tzname[0] 139 140 global py_dst_timezone_name 141 py_dst_timezone_name = time.tzname[1] 142 143 global dst_locally_in_use 144 dst_locally_in_use = (time.daylight != 0) 145 146 global dst_currently_in_effect 147 dst_currently_in_effect = bool(time.localtime()[8]) 148 _log.debug('DST currently in effect: [%s]' % dst_currently_in_effect) 149 150 if (not dst_locally_in_use) and dst_currently_in_effect: 151 _log.error('system inconsistency: DST not in use - but DST currently in effect ?') 152 153 global current_local_utc_offset_in_seconds 154 msg = 'DST currently%sin effect: using UTC offset of [%s] seconds instead of [%s] seconds' 155 if dst_currently_in_effect: 156 current_local_utc_offset_in_seconds = time.altzone * -1 157 _log.debug(msg % (' ', time.altzone * -1, time.timezone * -1)) 158 else: 159 current_local_utc_offset_in_seconds = time.timezone * -1 160 _log.debug(msg % (' not ', time.timezone * -1, time.altzone * -1)) 161 162 if current_local_utc_offset_in_seconds > 0: 163 _log.debug('UTC offset is positive, assuming EAST of Greenwich (clock is "ahead")') 164 elif current_local_utc_offset_in_seconds < 0: 165 _log.debug('UTC offset is negative, assuming WEST of Greenwich (clock is "behind")') 166 else: 167 _log.debug('UTC offset is ZERO, assuming Greenwich Time') 168 169 global current_local_timezone_interval 170 # current_local_timezone_interval = mxDT.now().gmtoffset() 171 _log.debug('ISO timezone: [%s] (taken from mx.DateTime.now().gmtoffset())' % current_local_timezone_interval) 172 173 global current_local_iso_numeric_timezone_string 174 current_local_iso_numeric_timezone_string = str(current_local_timezone_interval).replace(',', '.') 175 176 global current_local_timezone_name 177 try: 178 current_local_timezone_name = os.environ['TZ'] 179 except KeyError: 180 if dst_currently_in_effect: 181 current_local_timezone_name = time.tzname[1] 182 else: 183 current_local_timezone_name = time.tzname[0] 184 185 # do some magic to convert Python's timezone to a valid ISO timezone 186 # is this safe or will it return things like 13.5 hours ? 187 #_default_client_timezone = "%+.1f" % (-tz // 3600.0) 188 #_log.info('assuming default client time zone of [%s]' % _default_client_timezone) 189 190 global gmCurrentLocalTimezone 191 gmCurrentLocalTimezone = cPlatformLocalTimezone() 192 _log.debug('local-timezone class: %s', cPlatformLocalTimezone) 193 _log.debug('local-timezone instance: %s', gmCurrentLocalTimezone)
194 # _log.debug('') 195 # print (" (total) UTC offset:", gmCurrentLocalTimezone.utcoffset(pyDT.datetime.now())) 196 # print (" DST adjustment:", gmCurrentLocalTimezone.dst(pyDT.datetime.now())) 197 # print (" timezone name:", gmCurrentLocalTimezone.tzname(pyDT.datetime.now())) 198 199 #=========================================================================== 200 # local timezone implementation (lifted from the docs) 201 # 202 # A class capturing the platform's idea of local time. 203 # (May result in wrong values on historical times in 204 # timezones where UTC offset and/or the DST rules had 205 # changed in the past.) 206 #---------------------------------------------------------------------------
207 -class cPlatformLocalTimezone(pyDT.tzinfo):
208 209 #-----------------------------------------------------------------------
210 - def __init__(self):
211 self._SECOND = pyDT.timedelta(seconds = 1) 212 self._nonDST_OFFSET_FROM_UTC = pyDT.timedelta(seconds = -time.timezone) 213 if time.daylight: 214 self._DST_OFFSET_FROM_UTC = pyDT.timedelta(seconds = -time.altzone) 215 else: 216 self._DST_OFFSET_FROM_UTC = self._nonDST_OFFSET_FROM_UTC 217 self._DST_SHIFT = self._DST_OFFSET_FROM_UTC - self._nonDST_OFFSET_FROM_UTC 218 _log.debug('[%s]: UTC->non-DST offset [%s], UTC->DST offset [%s], DST shift [%s]', self.__class__.__name__, self._nonDST_OFFSET_FROM_UTC, self._DST_OFFSET_FROM_UTC, self._DST_SHIFT)
219 220 #-----------------------------------------------------------------------
221 - def fromutc(self, dt):
222 assert dt.tzinfo is self 223 stamp = (dt - pyDT.datetime(1970, 1, 1, tzinfo = self)) // self._SECOND 224 args = time.localtime(stamp)[:6] 225 dst_diff = self._DST_SHIFT // self._SECOND 226 # Detect fold 227 fold = (args == time.localtime(stamp - dst_diff)) 228 return pyDT.datetime(*args, microsecond = dt.microsecond, tzinfo = self, fold = fold)
229 230 #-----------------------------------------------------------------------
231 - def utcoffset(self, dt):
232 if self._isdst(dt): 233 return self._DST_OFFSET_FROM_UTC 234 return self._nonDST_OFFSET_FROM_UTC
235 236 #-----------------------------------------------------------------------
237 - def dst(self, dt):
238 if self._isdst(dt): 239 return self._DST_SHIFT 240 return pyDT.timedelta(0)
241 242 #-----------------------------------------------------------------------
243 - def tzname(self, dt):
244 return time.tzname[self._isdst(dt)]
245 246 #-----------------------------------------------------------------------
247 - def _isdst(self, dt):
248 tt = (dt.year, dt.month, dt.day, dt.hour, dt.minute, dt.second, dt.weekday(), 0, 0) 249 stamp = time.mktime(tt) 250 tt = time.localtime(stamp) 251 return tt.tm_isdst > 0
252 253 #=========================================================================== 254 # convenience functions 255 #---------------------------------------------------------------------------
256 -def get_next_month(dt):
257 next_month = dt.month + 1 258 if next_month == 13: 259 return 1 260 return next_month
261 262 #---------------------------------------------------------------------------
263 -def get_last_month(dt):
264 last_month = dt.month - 1 265 if last_month == 0: 266 return 12 267 return last_month
268 269 #---------------------------------------------------------------------------
270 -def get_date_of_weekday_in_week_of_date(weekday, base_dt=None):
271 # weekday: 272 # 0 = Sunday 273 # 1 = Monday ... 274 if weekday not in [0,1,2,3,4,5,6,7]: 275 raise ValueError('weekday must be in 0 (Sunday) to 7 (Sunday, again)') 276 if base_dt is None: 277 base_dt = pydt_now_here() 278 dt_weekday = base_dt.isoweekday() # 1 = Mon 279 day_diff = dt_weekday - weekday 280 days2add = (-1 * day_diff) 281 return pydt_add(base_dt, days = days2add)
282 283 #---------------------------------------------------------------------------
284 -def get_date_of_weekday_following_date(weekday, base_dt=None):
285 # weekday: 286 # 0 = Sunday # will be wrapped to 7 287 # 1 = Monday ... 288 if weekday not in [0,1,2,3,4,5,6,7]: 289 raise ValueError('weekday must be in 0 (Sunday) to 7 (Sunday, again)') 290 if weekday == 0: 291 weekday = 7 292 if base_dt is None: 293 base_dt = pydt_now_here() 294 dt_weekday = base_dt.isoweekday() # 1 = Mon 295 days2add = weekday - dt_weekday 296 if days2add == 0: 297 days2add = 7 298 elif days2add < 0: 299 days2add += 7 300 return pydt_add(base_dt, days = days2add)
301 302 #=========================================================================== 303 # mxDateTime conversions 304 #---------------------------------------------------------------------------
305 -def mxdt2py_dt(mxDateTime):
306 307 if isinstance(mxDateTime, pyDT.datetime): 308 return mxDateTime 309 310 try: 311 tz_name = str(mxDateTime.gmtoffset()).replace(',', '.') 312 except mxDT.Error: 313 _log.debug('mx.DateTime cannot gmtoffset() this timestamp, assuming local time') 314 tz_name = current_local_iso_numeric_timezone_string 315 316 if dst_currently_in_effect: 317 # convert 318 tz = cFixedOffsetTimezone ( 319 offset = ((time.altzone * -1) // 60), 320 name = tz_name 321 ) 322 else: 323 # convert 324 tz = cFixedOffsetTimezone ( 325 offset = ((time.timezone * -1) // 60), 326 name = tz_name 327 ) 328 329 try: 330 return pyDT.datetime ( 331 year = mxDateTime.year, 332 month = mxDateTime.month, 333 day = mxDateTime.day, 334 tzinfo = tz 335 ) 336 except: 337 _log.debug ('error converting mx.DateTime.DateTime to Python: %s-%s-%s %s:%s %s.%s', 338 mxDateTime.year, 339 mxDateTime.month, 340 mxDateTime.day, 341 mxDateTime.hour, 342 mxDateTime.minute, 343 mxDateTime.second, 344 mxDateTime.tz 345 ) 346 raise
347 348 #===========================================================================
349 -def format_dob(dob, format='%Y %b %d', none_string=None, dob_is_estimated=False):
350 if dob is None: 351 if none_string is None: 352 return _('** DOB unknown **') 353 return none_string 354 355 dob_txt = pydt_strftime(dob, format = format, accuracy = acc_days) 356 if dob_is_estimated: 357 return '%s%s' % ('\u2248', dob_txt) 358 359 return dob_txt
360 361 #---------------------------------------------------------------------------
362 -def pydt_strftime(dt=None, format='%Y %b %d %H:%M.%S', accuracy=None, none_str=None):
363 364 if dt is None: 365 if none_str is not None: 366 return none_str 367 raise ValueError('must provide <none_str> if <dt>=None is to be dealt with') 368 369 try: 370 return dt.strftime(format) 371 except ValueError: 372 _log.exception() 373 return 'strftime() error'
374 #_log.exception('Python cannot strftime() this <datetime>, trying ourselves') 375 376 # if isinstance(dt, pyDT.date): 377 # accuracy = acc_days 378 # 379 # if accuracy == acc_days: 380 # return '%04d-%02d-%02d' % ( 381 # dt.year, 382 # dt.month, 383 # dt.day 384 # ) 385 # 386 # if accuracy == acc_minutes: 387 # return '%04d-%02d-%02d %02d:%02d' % ( 388 # dt.year, 389 # dt.month, 390 # dt.day, 391 # dt.hour, 392 # dt.minute 393 # ) 394 # 395 # return '%04d-%02d-%02d %02d:%02d:%02d' % ( 396 # dt.year, 397 # dt.month, 398 # dt.day, 399 # dt.hour, 400 # dt.minute, 401 # dt.second 402 # ) 403 404 #---------------------------------------------------------------------------
405 -def pydt_add(dt, years=0, months=0, weeks=0, days=0, hours=0, minutes=0, seconds=0, milliseconds=0, microseconds=0):
406 if months > 11 or months < -11: 407 raise ValueError('pydt_add(): months must be within [-11..11]') 408 409 dt = dt + pyDT.timedelta ( 410 weeks = weeks, 411 days = days, 412 hours = hours, 413 minutes = minutes, 414 seconds = seconds, 415 milliseconds = milliseconds, 416 microseconds = microseconds 417 ) 418 if (years == 0) and (months == 0): 419 return dt 420 target_year = dt.year + years 421 target_month = dt.month + months 422 if target_month > 12: 423 target_year += 1 424 target_month -= 12 425 elif target_month < 1: 426 target_year -= 1 427 target_month += 12 428 return pydt_replace(dt, year = target_year, month = target_month, strict = False)
429 430 #---------------------------------------------------------------------------
431 -def pydt_replace(dt, strict=True, year=None, month=None, day=None, hour=None, minute=None, second=None, microsecond=None, tzinfo=None):
432 # normalization required because .replace() does not 433 # deal with keyword arguments being None ... 434 if year is None: 435 year = dt.year 436 if month is None: 437 month = dt.month 438 if day is None: 439 day = dt.day 440 if hour is None: 441 hour = dt.hour 442 if minute is None: 443 minute = dt.minute 444 if second is None: 445 second = dt.second 446 if microsecond is None: 447 microsecond = dt.microsecond 448 if tzinfo is None: 449 tzinfo = dt.tzinfo # can fail on naive dt's 450 451 if strict: 452 return dt.replace(year = year, month = month, day = day, hour = hour, minute = minute, second = second, microsecond = microsecond, tzinfo = tzinfo) 453 454 try: 455 return dt.replace(year = year, month = month, day = day, hour = hour, minute = minute, second = second, microsecond = microsecond, tzinfo = tzinfo) 456 except ValueError: 457 _log.debug('error replacing datetime member(s): %s', locals()) 458 459 # (target/existing) day did not exist in target month (which raised the exception) 460 if month == 2: 461 if day > 28: 462 if is_leap_year(year): 463 day = 29 464 else: 465 day = 28 466 else: 467 if day == 31: 468 day = 30 469 470 return dt.replace(year = year, month = month, day = day, hour = hour, minute = minute, second = second, microsecond = microsecond, tzinfo = tzinfo)
471 472 #---------------------------------------------------------------------------
473 -def pydt_is_today(dt):
474 now = pyDT.datetime.now(gmCurrentLocalTimezone) 475 if dt.day != now.day: 476 return False 477 if dt.month != now.month: 478 return False 479 if dt.year != now.year: 480 return False 481 return True
482 483 #---------------------------------------------------------------------------
484 -def pydt_now_here():
485 """Returns NOW @ HERE (IOW, in the local timezone.""" 486 return pyDT.datetime.now(gmCurrentLocalTimezone)
487 488 #---------------------------------------------------------------------------
489 -def pydt_max_here():
490 return pyDT.datetime.max.replace(tzinfo = gmCurrentLocalTimezone)
491 492 #=========================================================================== 493 # wxPython conversions 494 #---------------------------------------------------------------------------
495 -def wxDate2py_dt(wxDate=None):
496 if not wxDate.IsValid(): 497 raise ValueError ('invalid wxDate: %s-%s-%s %s:%s %s.%s', 498 wxDate.GetYear(), 499 wxDate.GetMonth(), 500 wxDate.GetDay(), 501 wxDate.GetHour(), 502 wxDate.GetMinute(), 503 wxDate.GetSecond(), 504 wxDate.GetMillisecond() 505 ) 506 507 try: 508 return pyDT.datetime ( 509 year = wxDate.GetYear(), 510 month = wxDate.GetMonth() + 1, 511 day = wxDate.GetDay(), 512 tzinfo = gmCurrentLocalTimezone 513 ) 514 except: 515 _log.debug ('error converting wxDateTime to Python: %s-%s-%s %s:%s %s.%s', 516 wxDate.GetYear(), 517 wxDate.GetMonth(), 518 wxDate.GetDay(), 519 wxDate.GetHour(), 520 wxDate.GetMinute(), 521 wxDate.GetSecond(), 522 wxDate.GetMillisecond() 523 ) 524 raise
525 526 #=========================================================================== 527 # interval related 528 #---------------------------------------------------------------------------
529 -def format_interval(interval=None, accuracy_wanted=None, none_string=None, verbose=False):
530 531 if accuracy_wanted is None: 532 accuracy_wanted = acc_seconds 533 534 if interval is None: 535 if none_string is not None: 536 return none_string 537 538 years, days = divmod(interval.days, avg_days_per_gregorian_year) 539 months, days = divmod(days, avg_days_per_gregorian_month) 540 weeks, days = divmod(days, days_per_week) 541 days, secs = divmod((days * avg_seconds_per_day) + interval.seconds, avg_seconds_per_day) 542 hours, secs = divmod(secs, 3600) 543 mins, secs = divmod(secs, 60) 544 545 tmp = '' 546 547 if years > 0: 548 if verbose: 549 if years > 1: 550 tag = ' ' + _('years') 551 else: 552 tag = ' ' + _('year') 553 else: 554 tag = _('interval_format_tag::years::y')[-1:] 555 tmp += '%s%s' % (int(years), tag) 556 557 if accuracy_wanted < acc_months: 558 if tmp == '': 559 if verbose: 560 return _('0 years') 561 return '0%s' % _('interval_format_tag::years::y')[-1:] 562 return tmp.strip() 563 564 if months > 0: 565 if verbose: 566 if months > 1: 567 tag = ' ' + _('months') 568 else: 569 tag = ' ' + _('month') 570 else: 571 tag = _('interval_format_tag::months::m')[-1:] 572 tmp += ' %s%s' % (int(months), tag) 573 574 if accuracy_wanted < acc_weeks: 575 if tmp == '': 576 if verbose: 577 return _('0 months') 578 return '0%s' % _('interval_format_tag::months::m')[-1:] 579 return tmp.strip() 580 581 if weeks > 0: 582 if verbose: 583 if weeks > 1: 584 tag = ' ' + _('weeks') 585 else: 586 tag = ' ' + _('week') 587 else: 588 tag = _('interval_format_tag::weeks::w')[-1:] 589 tmp += ' %s%s' % (int(weeks), tag) 590 591 if accuracy_wanted < acc_days: 592 if tmp == '': 593 if verbose: 594 return _('0 weeks') 595 return '0%s' % _('interval_format_tag::weeks::w')[-1:] 596 return tmp.strip() 597 598 if days > 0: 599 if verbose: 600 if days > 1: 601 tag = ' ' + _('days') 602 else: 603 tag = ' ' + _('day') 604 else: 605 tag = _('interval_format_tag::days::d')[-1:] 606 tmp += ' %s%s' % (int(days), tag) 607 608 if accuracy_wanted < acc_hours: 609 if tmp == '': 610 if verbose: 611 return _('0 days') 612 return '0%s' % _('interval_format_tag::days::d')[-1:] 613 return tmp.strip() 614 615 if hours > 0: 616 if verbose: 617 if hours > 1: 618 tag = ' ' + _('hours') 619 else: 620 tag = ' ' + _('hour') 621 else: 622 tag = '/24' 623 tmp += ' %s%s' % (int(hours), tag) 624 625 if accuracy_wanted < acc_minutes: 626 if tmp == '': 627 if verbose: 628 return _('0 hours') 629 return '0/24' 630 return tmp.strip() 631 632 if mins > 0: 633 if verbose: 634 if mins > 1: 635 tag = ' ' + _('minutes') 636 else: 637 tag = ' ' + _('minute') 638 else: 639 tag = '/60' 640 tmp += ' %s%s' % (int(mins), tag) 641 642 if accuracy_wanted < acc_seconds: 643 if tmp == '': 644 if verbose: 645 return _('0 minutes') 646 return '0/60' 647 return tmp.strip() 648 649 if secs > 0: 650 if verbose: 651 if secs > 1: 652 tag = ' ' + _('seconds') 653 else: 654 tag = ' ' + _('second') 655 else: 656 tag = 's' 657 tmp += ' %s%s' % (int(secs), tag) 658 659 if tmp == '': 660 if verbose: 661 return _('0 seconds') 662 return '0s' 663 664 return tmp.strip()
665 666 #---------------------------------------------------------------------------
667 -def format_interval_medically(interval=None):
668 """Formats an interval. 669 670 This isn't mathematically correct but close enough for display. 671 """ 672 # more than 1 year ? 673 if interval.days > 363: 674 years, days = divmod(interval.days, 364) 675 leap_days, tmp = divmod(years, 4) 676 months, day = divmod((days + leap_days), 30.33) 677 if int(months) == 0: 678 return "%s%s" % (int(years), _('interval_format_tag::years::y')[-1:]) 679 return "%s%s %s%s" % (int(years), _('interval_format_tag::years::y')[-1:], int(months), _('interval_format_tag::months::m')[-1:]) 680 681 # more than 30 days / 1 month ? 682 if interval.days > 30: 683 months, days = divmod(interval.days, 30.33) 684 weeks, days = divmod(days, 7) 685 if int(weeks + days) == 0: 686 result = '%smo' % int(months) 687 else: 688 result = '%s%s' % (int(months), _('interval_format_tag::months::m')[-1:]) 689 if int(weeks) != 0: 690 result += ' %s%s' % (int(weeks), _('interval_format_tag::weeks::w')[-1:]) 691 if int(days) != 0: 692 result += ' %s%s' % (int(days), _('interval_format_tag::days::d')[-1:]) 693 return result 694 695 # between 7 and 30 days ? 696 if interval.days > 7: 697 return "%s%s" % (interval.days, _('interval_format_tag::days::d')[-1:]) 698 699 # between 1 and 7 days ? 700 if interval.days > 0: 701 hours, seconds = divmod(interval.seconds, 3600) 702 if hours == 0: 703 return '%s%s' % (interval.days, _('interval_format_tag::days::d')[-1:]) 704 return "%s%s (%sh)" % (interval.days, _('interval_format_tag::days::d')[-1:], int(hours)) 705 706 # between 5 hours and 1 day 707 if interval.seconds > (5*3600): 708 return "%sh" % int(interval.seconds // 3600) 709 710 # between 1 and 5 hours 711 if interval.seconds > 3600: 712 hours, seconds = divmod(interval.seconds, 3600) 713 minutes = seconds // 60 714 if minutes == 0: 715 return '%sh' % int(hours) 716 return "%s:%02d" % (int(hours), int(minutes)) 717 718 # minutes only 719 if interval.seconds > (5*60): 720 return "0:%02d" % (int(interval.seconds // 60)) 721 722 # seconds 723 minutes, seconds = divmod(interval.seconds, 60) 724 if minutes == 0: 725 return '%ss' % int(seconds) 726 if seconds == 0: 727 return '0:%02d' % int(minutes) 728 return "%s.%ss" % (int(minutes), int(seconds))
729 730 #---------------------------------------------------------------------------
731 -def format_pregnancy_weeks(age):
732 weeks, days = divmod(age.days, 7) 733 return '%s%s%s%s' % ( 734 int(weeks), 735 _('interval_format_tag::weeks::w')[-1:], 736 interval.days, 737 _('interval_format_tag::days::d')[-1:] 738 )
739 740 #---------------------------------------------------------------------------
741 -def format_pregnancy_months(age):
742 months, remainder = divmod(age.days, 28) 743 return '%s%s' % ( 744 int(months) + 1, 745 _('interval_format_tag::months::m')[-1:] 746 )
747 748 #---------------------------------------------------------------------------
749 -def is_leap_year(year):
750 # year is multiple of 4 ? 751 div, remainder = divmod(year, 4) 752 # no -> not a leap year 753 if remainder > 0: 754 return False 755 756 # year is a multiple of 100 ? 757 div, remainder = divmod(year, 100) 758 # no -> IS a leap year 759 if remainder > 0: 760 return True 761 762 # year is a multiple of 400 ? 763 div, remainder = divmod(year, 400) 764 # yes -> IS a leap year 765 if remainder == 0: 766 return True 767 768 return False
769 770 #---------------------------------------------------------------------------
771 -def calculate_apparent_age(start=None, end=None):
772 """The result of this is a tuple (years, ..., seconds) as one would 773 'expect' an age to look like, that is, simple differences between 774 the fields: 775 776 (years, months, days, hours, minutes, seconds) 777 778 This does not take into account time zones which may 779 shift the result by one day. 780 781 <start> and <end> must by python datetime instances 782 <end> is assumed to be "now" if not given 783 """ 784 if end is None: 785 end = pyDT.datetime.now(gmCurrentLocalTimezone) 786 787 if end < start: 788 raise ValueError('calculate_apparent_age(): <end> (%s) before <start> (%s)' % (end, start)) 789 790 if end == start: 791 return (0, 0, 0, 0, 0, 0) 792 793 # steer clear of leap years 794 if end.month == 2: 795 if end.day == 29: 796 if not is_leap_year(start.year): 797 end = end.replace(day = 28) 798 799 # years 800 years = end.year - start.year 801 end = end.replace(year = start.year) 802 if end < start: 803 years = years - 1 804 805 # months 806 if end.month == start.month: 807 if end < start: 808 months = 11 809 else: 810 months = 0 811 else: 812 months = end.month - start.month 813 if months < 0: 814 months = months + 12 815 if end.day > gregorian_month_length[start.month]: 816 end = end.replace(month = start.month, day = gregorian_month_length[start.month]) 817 else: 818 end = end.replace(month = start.month) 819 if end < start: 820 months = months - 1 821 822 # days 823 if end.day == start.day: 824 if end < start: 825 days = gregorian_month_length[start.month] - 1 826 else: 827 days = 0 828 else: 829 days = end.day - start.day 830 if days < 0: 831 days = days + gregorian_month_length[start.month] 832 end = end.replace(day = start.day) 833 if end < start: 834 days = days - 1 835 836 # hours 837 if end.hour == start.hour: 838 hours = 0 839 else: 840 hours = end.hour - start.hour 841 if hours < 0: 842 hours = hours + 24 843 end = end.replace(hour = start.hour) 844 if end < start: 845 hours = hours - 1 846 847 # minutes 848 if end.minute == start.minute: 849 minutes = 0 850 else: 851 minutes = end.minute - start.minute 852 if minutes < 0: 853 minutes = minutes + 60 854 end = end.replace(minute = start.minute) 855 if end < start: 856 minutes = minutes - 1 857 858 # seconds 859 if end.second == start.second: 860 seconds = 0 861 else: 862 seconds = end.second - start.second 863 if seconds < 0: 864 seconds = seconds + 60 865 end = end.replace(second = start.second) 866 if end < start: 867 seconds = seconds - 1 868 869 return (years, months, days, hours, minutes, seconds)
870 871 #---------------------------------------------------------------------------
872 -def format_apparent_age_medically(age=None):
873 """<age> must be a tuple as created by calculate_apparent_age()""" 874 875 (years, months, days, hours, minutes, seconds) = age 876 877 # at least 1 year ? 878 if years > 0: 879 if months == 0: 880 return '%s%s' % ( 881 years, 882 _('y::year_abbreviation').replace('::year_abbreviation', '') 883 ) 884 return '%s%s %s%s' % ( 885 years, 886 _('y::year_abbreviation').replace('::year_abbreviation', ''), 887 months, 888 _('m::month_abbreviation').replace('::month_abbreviation', '') 889 ) 890 891 # at least 1 month ? 892 if months > 0: 893 if days == 0: 894 return '%s%s' % ( 895 months, 896 _('mo::month_only_abbreviation').replace('::month_only_abbreviation', '') 897 ) 898 899 result = '%s%s' % ( 900 months, 901 _('m::month_abbreviation').replace('::month_abbreviation', '') 902 ) 903 904 weeks, days = divmod(days, 7) 905 if int(weeks) != 0: 906 result += '%s%s' % ( 907 int(weeks), 908 _('w::week_abbreviation').replace('::week_abbreviation', '') 909 ) 910 if int(days) != 0: 911 result += '%s%s' % ( 912 int(days), 913 _('d::day_abbreviation').replace('::day_abbreviation', '') 914 ) 915 916 return result 917 918 # between 7 days and 1 month 919 if days > 7: 920 return "%s%s" % ( 921 days, 922 _('d::day_abbreviation').replace('::day_abbreviation', '') 923 ) 924 925 # between 1 and 7 days ? 926 if days > 0: 927 if hours == 0: 928 return '%s%s' % ( 929 days, 930 _('d::day_abbreviation').replace('::day_abbreviation', '') 931 ) 932 return '%s%s (%s%s)' % ( 933 days, 934 _('d::day_abbreviation').replace('::day_abbreviation', ''), 935 hours, 936 _('h::hour_abbreviation').replace('::hour_abbreviation', '') 937 ) 938 939 # between 5 hours and 1 day 940 if hours > 5: 941 return '%s%s' % ( 942 hours, 943 _('h::hour_abbreviation').replace('::hour_abbreviation', '') 944 ) 945 946 # between 1 and 5 hours 947 if hours > 1: 948 if minutes == 0: 949 return '%s%s' % ( 950 hours, 951 _('h::hour_abbreviation').replace('::hour_abbreviation', '') 952 ) 953 return '%s:%02d' % ( 954 hours, 955 minutes 956 ) 957 958 # between 5 and 60 minutes 959 if minutes > 5: 960 return "0:%02d" % minutes 961 962 # less than 5 minutes 963 if minutes == 0: 964 return '%s%s' % ( 965 seconds, 966 _('s::second_abbreviation').replace('::second_abbreviation', '') 967 ) 968 if seconds == 0: 969 return "0:%02d" % minutes 970 return "%s.%s%s" % ( 971 minutes, 972 seconds, 973 _('s::second_abbreviation').replace('::second_abbreviation', '') 974 )
975 #---------------------------------------------------------------------------
976 -def str2interval(str_interval=None):
977 978 unit_keys = { 979 'year': _('yYaA_keys_year'), 980 'month': _('mM_keys_month'), 981 'week': _('wW_keys_week'), 982 'day': _('dD_keys_day'), 983 'hour': _('hH_keys_hour') 984 } 985 986 str_interval = str_interval.strip() 987 988 # "(~)35(yY)" - at age 35 years 989 keys = '|'.join(list(unit_keys['year'].replace('_keys_year', ''))) 990 if regex.match('^~*(\s|\t)*\d+(%s)*$' % keys, str_interval, flags = regex.UNICODE): 991 return pyDT.timedelta(days = (int(regex.findall('\d+', str_interval, flags = regex.UNICODE)[0]) * avg_days_per_gregorian_year)) 992 993 # "(~)12mM" - at age 12 months 994 keys = '|'.join(list(unit_keys['month'].replace('_keys_month', ''))) 995 if regex.match('^~*(\s|\t)*\d+(\s|\t)*(%s)+$' % keys, str_interval, flags = regex.UNICODE): 996 years, months = divmod ( 997 int(regex.findall('\d+', str_interval, flags = regex.UNICODE)[0]), 998 12 999 ) 1000 return pyDT.timedelta(days = ((years * avg_days_per_gregorian_year) + (months * avg_days_per_gregorian_month))) 1001 1002 # weeks 1003 keys = '|'.join(list(unit_keys['week'].replace('_keys_week', ''))) 1004 if regex.match('^~*(\s|\t)*\d+(\s|\t)*(%s)+$' % keys, str_interval, flags = regex.UNICODE): 1005 return pyDT.timedelta(weeks = int(regex.findall('\d+', str_interval, flags = regex.UNICODE)[0])) 1006 1007 # days 1008 keys = '|'.join(list(unit_keys['day'].replace('_keys_day', ''))) 1009 if regex.match('^~*(\s|\t)*\d+(\s|\t)*(%s)+$' % keys, str_interval, flags = regex.UNICODE): 1010 return pyDT.timedelta(days = int(regex.findall('\d+', str_interval, flags = regex.UNICODE)[0])) 1011 1012 # hours 1013 keys = '|'.join(list(unit_keys['hour'].replace('_keys_hour', ''))) 1014 if regex.match('^~*(\s|\t)*\d+(\s|\t)*(%s)+$' % keys, str_interval, flags = regex.UNICODE): 1015 return pyDT.timedelta(hours = int(regex.findall('\d+', str_interval, flags = regex.UNICODE)[0])) 1016 1017 # x/12 - months 1018 if regex.match('^~*(\s|\t)*\d+(\s|\t)*/(\s|\t)*12$', str_interval, flags = regex.UNICODE): 1019 years, months = divmod ( 1020 int(regex.findall('\d+', str_interval, flags = regex.UNICODE)[0]), 1021 12 1022 ) 1023 return pyDT.timedelta(days = ((years * avg_days_per_gregorian_year) + (months * avg_days_per_gregorian_month))) 1024 1025 # x/52 - weeks 1026 if regex.match('^~*(\s|\t)*\d+(\s|\t)*/(\s|\t)*52$', str_interval, flags = regex.UNICODE): 1027 return pyDT.timedelta(weeks = int(regex.findall('\d+', str_interval, flags = regex.UNICODE)[0])) 1028 1029 # x/7 - days 1030 if regex.match('^~*(\s|\t)*\d+(\s|\t)*/(\s|\t)*7$', str_interval, flags = regex.UNICODE): 1031 return pyDT.timedelta(days = int(regex.findall('\d+', str_interval, flags = regex.UNICODE)[0])) 1032 1033 # x/24 - hours 1034 if regex.match('^~*(\s|\t)*\d+(\s|\t)*/(\s|\t)*24$', str_interval, flags = regex.UNICODE): 1035 return pyDT.timedelta(hours = int(regex.findall('\d+', str_interval, flags = regex.UNICODE)[0])) 1036 1037 # x/60 - minutes 1038 if regex.match('^~*(\s|\t)*\d+(\s|\t)*/(\s|\t)*60$', str_interval, flags = regex.UNICODE): 1039 return pyDT.timedelta(minutes = int(regex.findall('\d+', str_interval, flags = regex.UNICODE)[0])) 1040 1041 # nYnM - years, months 1042 keys_year = '|'.join(list(unit_keys['year'].replace('_keys_year', ''))) 1043 keys_month = '|'.join(list(unit_keys['month'].replace('_keys_month', ''))) 1044 if regex.match('^~*(\s|\t)*\d+(%s|\s|\t)+\d+(\s|\t)*(%s)+$' % (keys_year, keys_month), str_interval, flags = regex.UNICODE): 1045 parts = regex.findall('\d+', str_interval, flags = regex.UNICODE) 1046 years, months = divmod(int(parts[1]), 12) 1047 years += int(parts[0]) 1048 return pyDT.timedelta(days = ((years * avg_days_per_gregorian_year) + (months * avg_days_per_gregorian_month))) 1049 1050 # nMnW - months, weeks 1051 keys_month = '|'.join(list(unit_keys['month'].replace('_keys_month', ''))) 1052 keys_week = '|'.join(list(unit_keys['week'].replace('_keys_week', ''))) 1053 if regex.match('^~*(\s|\t)*\d+(%s|\s|\t)+\d+(\s|\t)*(%s)+$' % (keys_month, keys_week), str_interval, flags = regex.UNICODE): 1054 parts = regex.findall('\d+', str_interval, flags = regex.UNICODE) 1055 months, weeks = divmod(int(parts[1]), 4) 1056 months += int(parts[0]) 1057 return pyDT.timedelta(days = ((months * avg_days_per_gregorian_month) + (weeks * days_per_week))) 1058 1059 return None
1060 1061 #=========================================================================== 1062 # string -> python datetime parser 1063 #---------------------------------------------------------------------------
1064 -def __single_char2py_dt(str2parse, trigger_chars=None):
1065 """This matches on single characters. 1066 1067 Spaces and tabs are discarded. 1068 1069 Default is 'ndmy': 1070 n - _N_ow 1071 d - to_D_ay 1072 m - to_M_orrow Someone please suggest a synonym ! ("2" does not cut it ...) 1073 y - _Y_esterday 1074 1075 This also defines the significance of the order of the characters. 1076 """ 1077 str2parse = str2parse.strip().lower() 1078 if len(str2parse) != 1: 1079 return [] 1080 1081 if trigger_chars is None: 1082 trigger_chars = _('ndmy (single character date triggers)')[:4].lower() 1083 1084 if str2parse not in trigger_chars: 1085 return [] 1086 1087 now = pydt_now_here() 1088 1089 # FIXME: handle uebermorgen/vorgestern ? 1090 1091 # right now 1092 if str2parse == trigger_chars[0]: 1093 return [{ 1094 'data': now, 1095 'label': _('right now (%s, %s)') % (now.strftime('%A'), now) 1096 }] 1097 # today 1098 if str2parse == trigger_chars[1]: 1099 return [{ 1100 'data': now, 1101 'label': _('today (%s)') % now.strftime('%A, %Y-%m-%d') 1102 }] 1103 # tomorrow 1104 if str2parse == trigger_chars[2]: 1105 ts = pydt_add(now, days = 1) 1106 return [{ 1107 'data': ts, 1108 'label': _('tomorrow (%s)') % ts.strftime('%A, %Y-%m-%d') 1109 }] 1110 # yesterday 1111 if str2parse == trigger_chars[3]: 1112 ts = pydt_add(now, days = -1) 1113 return [{ 1114 'data': ts, 1115 'label': _('yesterday (%s)') % ts.strftime('%A, %Y-%m-%d') 1116 }] 1117 return []
1118 1119 #---------------------------------------------------------------------------
1120 -def __single_dot2py_dt(str2parse):
1121 """Expand fragments containing a single dot. 1122 1123 Standard colloquial date format in Germany: day.month.year 1124 1125 "14." 1126 - the 14th of the current month 1127 - the 14th of next month 1128 "-14." 1129 - the 14th of last month 1130 """ 1131 str2parse = str2parse.replace(' ', '').replace('\t', '') 1132 1133 if not str2parse.endswith('.'): 1134 return [] 1135 try: 1136 day_val = int(str2parse[:-1]) 1137 except ValueError: 1138 return [] 1139 if (day_val < -31) or (day_val > 31) or (day_val == 0): 1140 return [] 1141 1142 now = pydt_now_here() 1143 matches = [] 1144 1145 # day X of last month only 1146 if day_val < 0: 1147 ts = pydt_replace(pydt_add(now, months = -1), day = abs(day_val)) 1148 if ts.day == day_val: 1149 matches.append ({ 1150 'data': ts, 1151 'label': _('%s-%s-%s: a %s last month') % (ts.year, ts.month, ts.day, ts.strftime('%A')) 1152 }) 1153 1154 # day X of ... 1155 if day_val > 0: 1156 # ... this month 1157 ts = pydt_replace(now, day = day_val) 1158 matches.append ({ 1159 'data': ts, 1160 'label': _('%s-%s-%s: a %s this month') % (ts.year, ts.month, ts.day, ts.strftime('%A')) 1161 }) 1162 # ... next month 1163 ts = pydt_replace(pydt_add(now, months = 1), day = day_val) 1164 if ts.day == day_val: 1165 matches.append ({ 1166 'data': ts, 1167 'label': _('%s-%s-%s: a %s next month') % (ts.year, ts.month, ts.day, ts.strftime('%A')) 1168 }) 1169 # ... last month 1170 ts = pydt_replace(pydt_add(now, months = -1), day = day_val) 1171 if ts.day == day_val: 1172 matches.append ({ 1173 'data': ts, 1174 'label': _('%s-%s-%s: a %s last month') % (ts.year, ts.month, ts.day, ts.strftime('%A')) 1175 }) 1176 1177 return matches
1178 1179 #---------------------------------------------------------------------------
1180 -def __single_slash2py_dt(str2parse):
1181 """Expand fragments containing a single slash. 1182 1183 "5/" 1184 - 2005/ (2000 - 2025) 1185 - 1995/ (1990 - 1999) 1186 - Mai/current year 1187 - Mai/next year 1188 - Mai/last year 1189 - Mai/200x 1190 - Mai/20xx 1191 - Mai/199x 1192 - Mai/198x 1193 - Mai/197x 1194 - Mai/19xx 1195 1196 5/1999 1197 6/2004 1198 """ 1199 str2parse = str2parse.strip() 1200 1201 now = pydt_now_here() 1202 1203 # 5/1999 1204 if regex.match(r"^\d{1,2}(\s|\t)*/+(\s|\t)*\d{4}$", str2parse, flags = regex.UNICODE): 1205 month, year = regex.findall(r'\d+', str2parse, flags = regex.UNICODE) 1206 ts = pydt_replace(now, year = int(year), month = int(month)) 1207 return [{ 1208 'data': ts, 1209 'label': ts.strftime('%Y-%m-%d') 1210 }] 1211 1212 matches = [] 1213 # 5/ 1214 if regex.match(r"^\d{1,2}(\s|\t)*/+$", str2parse, flags = regex.UNICODE): 1215 val = int(str2parse.rstrip('/').strip()) 1216 1217 # "55/" -> "1955" 1218 if val < 100 and val >= 0: 1219 matches.append ({ 1220 'data': None, 1221 'label': '%s-' % (val + 1900) 1222 }) 1223 # "11/" -> "2011" 1224 if val < 26 and val >= 0: 1225 matches.append ({ 1226 'data': None, 1227 'label': '%s-' % (val + 2000) 1228 }) 1229 # "5/" -> "1995" 1230 if val < 10 and val >= 0: 1231 matches.append ({ 1232 'data': None, 1233 'label': '%s-' % (val + 1990) 1234 }) 1235 if val < 13 and val > 0: 1236 # "11/" -> "11/this year" 1237 matches.append ({ 1238 'data': None, 1239 'label': '%s-%.2d-' % (now.year, val) 1240 }) 1241 # "11/" -> "11/next year" 1242 ts = pydt_add(now, years = 1) 1243 matches.append ({ 1244 'data': None, 1245 'label': '%s-%.2d-' % (ts.year, val) 1246 }) 1247 # "11/" -> "11/last year" 1248 ts = pydt_add(now, years = -1) 1249 matches.append ({ 1250 'data': None, 1251 'label': '%s-%.2d-' % (ts.year, val) 1252 }) 1253 # "11/" -> "201?-11-" 1254 matches.append ({ 1255 'data': None, 1256 'label': '201?-%.2d-' % val 1257 }) 1258 # "11/" -> "200?-11-" 1259 matches.append ({ 1260 'data': None, 1261 'label': '200?-%.2d-' % val 1262 }) 1263 # "11/" -> "20??-11-" 1264 matches.append ({ 1265 'data': None, 1266 'label': '20??-%.2d-' % val 1267 }) 1268 # "11/" -> "199?-11-" 1269 matches.append ({ 1270 'data': None, 1271 'label': '199?-%.2d-' % val 1272 }) 1273 # "11/" -> "198?-11-" 1274 matches.append ({ 1275 'data': None, 1276 'label': '198?-%.2d-' % val 1277 }) 1278 # "11/" -> "198?-11-" 1279 matches.append ({ 1280 'data': None, 1281 'label': '197?-%.2d-' % val 1282 }) 1283 # "11/" -> "19??-11-" 1284 matches.append ({ 1285 'data': None, 1286 'label': '19??-%.2d-' % val 1287 }) 1288 1289 return matches
1290 1291 #---------------------------------------------------------------------------
1292 -def __numbers_only2py_dt(str2parse):
1293 """This matches on single numbers. 1294 1295 Spaces or tabs are discarded. 1296 """ 1297 try: 1298 val = int(str2parse.strip()) 1299 except ValueError: 1300 return [] 1301 1302 now = pydt_now_here() 1303 1304 matches = [] 1305 1306 # that year 1307 if (1850 < val) and (val < 2100): 1308 ts = pydt_replace(now, year = val) 1309 matches.append ({ 1310 'data': ts, 1311 'label': ts.strftime('%Y-%m-%d') 1312 }) 1313 # day X of this month 1314 if (val > 0) and (val <= gregorian_month_length[now.month]): 1315 ts = pydt_replace(now, day = val) 1316 matches.append ({ 1317 'data': ts, 1318 'label': _('%d. of %s (this month): a %s') % (val, ts.strftime('%B'), ts.strftime('%A')) 1319 }) 1320 # day X of ... 1321 if (val > 0) and (val < 32): 1322 # ... next month 1323 ts = pydt_replace(pydt_add(now, months = 1), day = val) 1324 matches.append ({ 1325 'data': ts, 1326 'label': _('%d. of %s (next month): a %s') % (val, ts.strftime('%B'), ts.strftime('%A')) 1327 }) 1328 # ... last month 1329 ts = pydt_replace(pydt_add(now, months = -1), day = val) 1330 matches.append ({ 1331 'data': ts, 1332 'label': _('%d. of %s (last month): a %s') % (val, ts.strftime('%B'), ts.strftime('%A')) 1333 }) 1334 # X days from now 1335 if (val > 0) and (val <= 400): # more than a year ahead in days ?? nah ! 1336 ts = pydt_add(now, days = val) 1337 matches.append ({ 1338 'data': ts, 1339 'label': _('in %d day(s): %s') % (val, ts.strftime('%A, %Y-%m-%d')) 1340 }) 1341 if (val < 0) and (val >= -400): # more than a year back in days ?? nah ! 1342 ts = pydt_add(now, days = val) 1343 matches.append ({ 1344 'data': ts, 1345 'label': _('%d day(s) ago: %s') % (abs(val), ts.strftime('%A, %Y-%m-%d')) 1346 }) 1347 # X weeks from now 1348 if (val > 0) and (val <= 50): # pregnancy takes about 40 weeks :-) 1349 ts = pydt_add(now, weeks = val) 1350 matches.append ({ 1351 'data': ts, 1352 'label': _('in %d week(s): %s') % (val, ts.strftime('%A, %Y-%m-%d')) 1353 }) 1354 if (val < 0) and (val >= -50): # pregnancy takes about 40 weeks :-) 1355 ts = pydt_add(now, weeks = val) 1356 matches.append ({ 1357 'data': ts, 1358 'label': _('%d week(s) ago: %s') % (abs(val), ts.strftime('%A, %Y-%m-%d')) 1359 }) 1360 1361 # month X of ... 1362 if (val < 13) and (val > 0): 1363 # ... this year 1364 ts = pydt_replace(now, month = val) 1365 matches.append ({ 1366 'data': ts, 1367 'label': _('%s (%s this year)') % (ts.strftime('%Y-%m-%d'), ts.strftime('%B')) 1368 }) 1369 # ... next year 1370 ts = pydt_replace(pydt_add(now, years = 1), month = val) 1371 matches.append ({ 1372 'data': ts, 1373 'label': _('%s (%s next year)') % (ts.strftime('%Y-%m-%d'), ts.strftime('%B')) 1374 }) 1375 # ... last year 1376 ts = pydt_replace(pydt_add(now, years = -1), month = val) 1377 matches.append ({ 1378 'data': ts, 1379 'label': _('%s (%s last year)') % (ts.strftime('%Y-%m-%d'), ts.strftime('%B')) 1380 }) 1381 # fragment expansion 1382 matches.append ({ 1383 'data': None, 1384 'label': '200?-%s' % val 1385 }) 1386 matches.append ({ 1387 'data': None, 1388 'label': '199?-%s' % val 1389 }) 1390 matches.append ({ 1391 'data': None, 1392 'label': '198?-%s' % val 1393 }) 1394 matches.append ({ 1395 'data': None, 1396 'label': '19??-%s' % val 1397 }) 1398 1399 # needs mxDT 1400 # # day X of ... 1401 # if (val < 8) and (val > 0): 1402 # # ... this week 1403 # ts = now + mxDT.RelativeDateTime(weekday = (val-1, 0)) 1404 # matches.append ({ 1405 # 'data': mxdt2py_dt(ts), 1406 # 'label': _('%s this week (%s of %s)') % (ts.strftime('%A'), ts.day, ts.strftime('%B')) 1407 # }) 1408 # # ... next week 1409 # ts = now + mxDT.RelativeDateTime(weeks = +1, weekday = (val-1, 0)) 1410 # matches.append ({ 1411 # 'data': mxdt2py_dt(ts), 1412 # 'label': _('%s next week (%s of %s)') % (ts.strftime('%A'), ts.day, ts.strftime('%B')) 1413 # }) 1414 # # ... last week 1415 # ts = now + mxDT.RelativeDateTime(weeks = -1, weekday = (val-1, 0)) 1416 # matches.append ({ 1417 # 'data': mxdt2py_dt(ts), 1418 # 'label': _('%s last week (%s of %s)') % (ts.strftime('%A'), ts.day, ts.strftime('%B')) 1419 # }) 1420 1421 if (val < 100) and (val > 0): 1422 matches.append ({ 1423 'data': None, 1424 'label': '%s-' % (1900 + val) 1425 }) 1426 1427 if val == 201: 1428 matches.append ({ 1429 'data': now, 1430 'label': now.strftime('%Y-%m-%d') 1431 }) 1432 matches.append ({ 1433 'data': None, 1434 'label': now.strftime('%Y-%m') 1435 }) 1436 matches.append ({ 1437 'data': None, 1438 'label': now.strftime('%Y') 1439 }) 1440 matches.append ({ 1441 'data': None, 1442 'label': '%s-' % (now.year + 1) 1443 }) 1444 matches.append ({ 1445 'data': None, 1446 'label': '%s-' % (now.year - 1) 1447 }) 1448 1449 if val < 200 and val >= 190: 1450 for i in range(10): 1451 matches.append ({ 1452 'data': None, 1453 'label': '%s%s-' % (val, i) 1454 }) 1455 1456 return matches
1457 1458 #---------------------------------------------------------------------------
1459 -def __explicit_offset2py_dt(str2parse, offset_chars=None):
1460 """Default is 'hdwmy': 1461 h - hours 1462 d - days 1463 w - weeks 1464 m - months 1465 y - years 1466 1467 This also defines the significance of the order of the characters. 1468 """ 1469 if offset_chars is None: 1470 offset_chars = _('hdwmy (single character date offset triggers)')[:5].lower() 1471 1472 str2parse = str2parse.replace(' ', '').replace('\t', '') 1473 # "+/-XXXh/d/w/m/t" 1474 if regex.fullmatch(r"(\+|-){,1}\d{1,3}[%s]" % offset_chars, str2parse) is None: 1475 return [] 1476 1477 offset_val = int(str2parse[:-1]) 1478 offset_char = str2parse[-1:] 1479 is_past = str2parse.startswith('-') 1480 now = pydt_now_here() 1481 ts = None 1482 1483 # hours 1484 if offset_char == offset_chars[0]: 1485 ts = pydt_add(now, hours = offset_val) 1486 if is_past: 1487 label = _('%d hour(s) ago: %s') % (abs(offset_val), ts.strftime('%H:%M')) 1488 else: 1489 label = _('in %d hour(s): %s') % (offset_val, ts.strftime('%H:%M')) 1490 # days 1491 elif offset_char == offset_chars[1]: 1492 ts = pydt_add(now, days = offset_val) 1493 if is_past: 1494 label = _('%d day(s) ago: %s') % (abs(offset_val), ts.strftime('%A, %Y-%m-%d')) 1495 else: 1496 label = _('in %d day(s): %s') % (offset_val, ts.strftime('%A, %Y-%m-%d')) 1497 # weeks 1498 elif offset_char == offset_chars[2]: 1499 ts = pydt_add(now, weeks = offset_val) 1500 if is_past: 1501 label = _('%d week(s) ago: %s') % (abs(offset_val), ts.strftime('%A, %Y-%m-%d')) 1502 else: 1503 label = _('in %d week(s): %s') % (offset_val, ts.strftime('%A, %Y-%m-%d')) 1504 # months 1505 elif offset_char == offset_chars[3]: 1506 ts = pydt_add(now, months = offset_val) 1507 if is_past: 1508 label = _('%d month(s) ago: %s') % (abs(offset_val), ts.strftime('%A, %Y-%m-%d')) 1509 else: 1510 label = _('in %d month(s): %s') % (offset_val, ts.strftime('%A, %Y-%m-%d')) 1511 # years 1512 elif offset_char == offset_chars[4]: 1513 ts = pydt_add(now, years = offset_val) 1514 if is_past: 1515 label = _('%d year(s) ago: %s') % (abs(offset_val), ts.strftime('%A, %Y-%m-%d')) 1516 else: 1517 label = _('in %d year(s): %s') % (offset_val, ts.strftime('%A, %Y-%m-%d')) 1518 1519 if ts is None: 1520 return [] 1521 1522 return [{'data': ts, 'label': label}]
1523 1524 #---------------------------------------------------------------------------
1525 -def str2pydt_matches(str2parse=None, patterns=None):
1526 """Turn a string into candidate dates and auto-completions the user is likely to type. 1527 1528 You MUST have called locale.setlocale(locale.LC_ALL, '') 1529 somewhere in your code previously. 1530 1531 @param patterns: list of time.strptime compatible date pattern 1532 @type patterns: list 1533 """ 1534 matches = [] 1535 matches.extend(__single_dot2py_dt(str2parse)) 1536 matches.extend(__numbers_only2py_dt(str2parse)) 1537 matches.extend(__single_slash2py_dt(str2parse)) 1538 matches.extend(__single_char2py_dt(str2parse)) 1539 matches.extend(__explicit_offset2py_dt(str2parse)) 1540 1541 # no more with Python3 1542 # # try mxDT parsers 1543 # try: 1544 # date = mxDT.Parser.DateFromString ( 1545 # text = str2parse, 1546 # formats = ('euro', 'iso', 'us', 'altus', 'altiso', 'lit', 'altlit', 'eurlit') 1547 # ) 1548 # matches.append ({ 1549 # 'data': mxdt2py_dt(date), 1550 # 'label': date.strftime('%Y-%m-%d') 1551 # }) 1552 # except (ValueError, OverflowError): 1553 # pass 1554 # except mxDT.RangeError: 1555 # pass 1556 1557 # apply explicit patterns 1558 if patterns is None: 1559 patterns = [] 1560 1561 patterns.append('%Y-%m-%d') 1562 patterns.append('%y-%m-%d') 1563 patterns.append('%Y/%m/%d') 1564 patterns.append('%y/%m/%d') 1565 1566 patterns.append('%d-%m-%Y') 1567 patterns.append('%d-%m-%y') 1568 patterns.append('%d/%m/%Y') 1569 patterns.append('%d/%m/%y') 1570 patterns.append('%d.%m.%Y') 1571 1572 patterns.append('%m-%d-%Y') 1573 patterns.append('%m-%d-%y') 1574 patterns.append('%m/%d/%Y') 1575 patterns.append('%m/%d/%y') 1576 1577 patterns.append('%Y.%m.%d') 1578 1579 for pattern in patterns: 1580 try: 1581 date = pyDT.datetime.strptime(str2parse, pattern).replace ( 1582 hour = 11, 1583 minute = 11, 1584 second = 11, 1585 tzinfo = gmCurrentLocalTimezone 1586 ) 1587 matches.append ({ 1588 'data': date, 1589 'label': pydt_strftime(date, format = '%Y-%m-%d', accuracy = acc_days) 1590 }) 1591 except ValueError: 1592 # C-level overflow 1593 continue 1594 1595 return matches
1596 1597 #=========================================================================== 1598 # string -> fuzzy timestamp parser 1599 #---------------------------------------------------------------------------
1600 -def __single_slash(str2parse):
1601 """Expand fragments containing a single slash. 1602 1603 "5/" 1604 - 2005/ (2000 - 2025) 1605 - 1995/ (1990 - 1999) 1606 - Mai/current year 1607 - Mai/next year 1608 - Mai/last year 1609 - Mai/200x 1610 - Mai/20xx 1611 - Mai/199x 1612 - Mai/198x 1613 - Mai/197x 1614 - Mai/19xx 1615 """ 1616 matches = [] 1617 now = pydt_now_here() 1618 # "xx/yyyy" 1619 if regex.match("^(\s|\t)*\d{1,2}(\s|\t)*/+(\s|\t)*\d{4}(\s|\t)*$", str2parse, flags = regex.UNICODE): 1620 parts = regex.findall('\d+', str2parse, flags = regex.UNICODE) 1621 month = int(parts[0]) 1622 if month in range(1, 13): 1623 fts = cFuzzyTimestamp ( 1624 timestamp = now.replace(year = int(parts[1], month = month)), 1625 accuracy = acc_months 1626 ) 1627 matches.append ({ 1628 'data': fts, 1629 'label': fts.format_accurately() 1630 }) 1631 # "xx/" 1632 elif regex.match("^(\s|\t)*\d{1,2}(\s|\t)*/+(\s|\t)*$", str2parse, flags = regex.UNICODE): 1633 val = int(regex.findall('\d+', str2parse, flags = regex.UNICODE)[0]) 1634 1635 if val < 100 and val >= 0: 1636 matches.append ({ 1637 'data': None, 1638 'label': '%s/' % (val + 1900) 1639 }) 1640 1641 if val < 26 and val >= 0: 1642 matches.append ({ 1643 'data': None, 1644 'label': '%s/' % (val + 2000) 1645 }) 1646 1647 if val < 10 and val >= 0: 1648 matches.append ({ 1649 'data': None, 1650 'label': '%s/' % (val + 1990) 1651 }) 1652 1653 if val < 13 and val > 0: 1654 matches.append ({ 1655 'data': cFuzzyTimestamp(timestamp = now, accuracy = acc_months), 1656 'label': '%.2d/%s' % (val, now.year) 1657 }) 1658 ts = now.replace(year = now.year + 1) 1659 matches.append ({ 1660 'data': cFuzzyTimestamp(timestamp = ts, accuracy = acc_months), 1661 'label': '%.2d/%s' % (val, ts.year) 1662 }) 1663 ts = now.replace(year = now.year - 1) 1664 matches.append ({ 1665 'data': cFuzzyTimestamp(timestamp = ts, accuracy = acc_months), 1666 'label': '%.2d/%s' % (val, ts.year) 1667 }) 1668 matches.append ({ 1669 'data': None, 1670 'label': '%.2d/200' % val 1671 }) 1672 matches.append ({ 1673 'data': None, 1674 'label': '%.2d/20' % val 1675 }) 1676 matches.append ({ 1677 'data': None, 1678 'label': '%.2d/199' % val 1679 }) 1680 matches.append ({ 1681 'data': None, 1682 'label': '%.2d/198' % val 1683 }) 1684 matches.append ({ 1685 'data': None, 1686 'label': '%.2d/197' % val 1687 }) 1688 matches.append ({ 1689 'data': None, 1690 'label': '%.2d/19' % val 1691 }) 1692 1693 return matches
1694 1695 #---------------------------------------------------------------------------
1696 -def __numbers_only(str2parse):
1697 """This matches on single numbers. 1698 1699 Spaces or tabs are discarded. 1700 """ 1701 if not regex.match("^(\s|\t)*\d{1,4}(\s|\t)*$", str2parse, flags = regex.UNICODE): 1702 return [] 1703 1704 now = pydt_now_here() 1705 val = int(regex.findall('\d{1,4}', str2parse, flags = regex.UNICODE)[0]) 1706 1707 matches = [] 1708 1709 # today in that year 1710 if (1850 < val) and (val < 2100): 1711 target_date = cFuzzyTimestamp ( 1712 timestamp = now.replace(year = val), 1713 accuracy = acc_years 1714 ) 1715 tmp = { 1716 'data': target_date, 1717 'label': '%s' % target_date 1718 } 1719 matches.append(tmp) 1720 1721 # day X of this month 1722 if val <= gregorian_month_length[now.month]: 1723 ts = now.replace(day = val) 1724 target_date = cFuzzyTimestamp ( 1725 timestamp = ts, 1726 accuracy = acc_days 1727 ) 1728 tmp = { 1729 'data': target_date, 1730 'label': _('%d. of %s (this month) - a %s') % (val, ts.strftime('%B'), ts.strftime('%A')) 1731 } 1732 matches.append(tmp) 1733 1734 # day X of next month 1735 next_month = get_next_month(now) 1736 if val <= gregorian_month_length[next_month]: 1737 ts = now.replace(day = val, month = next_month) 1738 target_date = cFuzzyTimestamp ( 1739 timestamp = ts, 1740 accuracy = acc_days 1741 ) 1742 tmp = { 1743 'data': target_date, 1744 'label': _('%d. of %s (next month) - a %s') % (val, ts.strftime('%B'), ts.strftime('%A')) 1745 } 1746 matches.append(tmp) 1747 1748 # day X of last month 1749 last_month = get_last_month(now) 1750 if val <= gregorian_month_length[last_month]: 1751 ts = now.replace(day = val, month = last_month) 1752 target_date = cFuzzyTimestamp ( 1753 timestamp = ts, 1754 accuracy = acc_days 1755 ) 1756 tmp = { 1757 'data': target_date, 1758 'label': _('%d. of %s (last month) - a %s') % (val, ts.strftime('%B'), ts.strftime('%A')) 1759 } 1760 matches.append(tmp) 1761 1762 # X days from now 1763 if val <= 400: # more than a year ahead in days ?? nah ! 1764 target_date = cFuzzyTimestamp(timestamp = now + pyDT.timedelta(days = val)) 1765 tmp = { 1766 'data': target_date, 1767 'label': _('in %d day(s) - %s') % (val, target_date.timestamp.strftime('%A, %Y-%m-%d')) 1768 } 1769 matches.append(tmp) 1770 1771 # X weeks from now 1772 if val <= 50: # pregnancy takes about 40 weeks :-) 1773 target_date = cFuzzyTimestamp(timestamp = now + pyDT.timedelta(weeks = val)) 1774 tmp = { 1775 'data': target_date, 1776 'label': _('in %d week(s) - %s') % (val, target_date.timestamp.strftime('%A, %Y-%m-%d')) 1777 } 1778 matches.append(tmp) 1779 1780 # month X of ... 1781 if val < 13: 1782 # ... this year 1783 target_date = cFuzzyTimestamp ( 1784 timestamp = pydt_replace(now, month = val), 1785 accuracy = acc_months 1786 ) 1787 tmp = { 1788 'data': target_date, 1789 'label': _('%s (%s this year)') % (target_date, ts.strftime('%B')) 1790 } 1791 matches.append(tmp) 1792 1793 # ... next year 1794 target_date = cFuzzyTimestamp ( 1795 timestamp = pydt_add(pydt_replace(now, month = val), years = 1), 1796 accuracy = acc_months 1797 ) 1798 tmp = { 1799 'data': target_date, 1800 'label': _('%s (%s next year)') % (target_date, ts.strftime('%B')) 1801 } 1802 matches.append(tmp) 1803 1804 # ... last year 1805 target_date = cFuzzyTimestamp ( 1806 timestamp = pydt_add(pydt_replace(now, month = val), years = -1), 1807 accuracy = acc_months 1808 ) 1809 tmp = { 1810 'data': target_date, 1811 'label': _('%s (%s last year)') % (target_date, ts.strftime('%B')) 1812 } 1813 matches.append(tmp) 1814 1815 # fragment expansion 1816 matches.append ({ 1817 'data': None, 1818 'label': '%s/200' % val 1819 }) 1820 matches.append ({ 1821 'data': None, 1822 'label': '%s/199' % val 1823 }) 1824 matches.append ({ 1825 'data': None, 1826 'label': '%s/198' % val 1827 }) 1828 matches.append ({ 1829 'data': None, 1830 'label': '%s/19' % val 1831 }) 1832 1833 # reactivate when mxDT becomes available on py3k 1834 # # day X of ... 1835 # if val < 8: 1836 # # ... this week 1837 # ts = now + mxDT.RelativeDateTime(weekday = (val-1, 0)) 1838 # target_date = cFuzzyTimestamp ( 1839 # timestamp = ts, 1840 # accuracy = acc_days 1841 # ) 1842 # tmp = { 1843 # 'data': target_date, 1844 # 'label': _('%s this week (%s of %s)') % (ts.strftime('%A'), ts.day, ts.strftime('%B')) 1845 # } 1846 # matches.append(tmp) 1847 # 1848 # # ... next week 1849 # ts = now + mxDT.RelativeDateTime(weeks = +1, weekday = (val-1, 0)) 1850 # target_date = cFuzzyTimestamp ( 1851 # timestamp = ts, 1852 # accuracy = acc_days 1853 # ) 1854 # tmp = { 1855 # 'data': target_date, 1856 # 'label': _('%s next week (%s of %s)') % (ts.strftime('%A'), ts.day, ts.strftime('%B')) 1857 # } 1858 # matches.append(tmp) 1859 1860 # # ... last week 1861 # ts = now + mxDT.RelativeDateTime(weeks = -1, weekday = (val-1, 0)) 1862 # target_date = cFuzzyTimestamp ( 1863 # timestamp = ts, 1864 # accuracy = acc_days 1865 # ) 1866 # tmp = { 1867 # 'data': target_date, 1868 # 'label': _('%s last week (%s of %s)') % (ts.strftime('%A'), ts.day, ts.strftime('%B')) 1869 # } 1870 # matches.append(tmp) 1871 1872 if val < 100: 1873 matches.append ({ 1874 'data': None, 1875 'label': '%s/' % (1900 + val) 1876 }) 1877 1878 # year 2k 1879 if val == 200: 1880 tmp = { 1881 'data': cFuzzyTimestamp(timestamp = now, accuracy = acc_days), 1882 'label': '%s' % target_date 1883 } 1884 matches.append(tmp) 1885 matches.append ({ 1886 'data': cFuzzyTimestamp(timestamp = now, accuracy = acc_months), 1887 'label': '%.2d/%s' % (now.month, now.year) 1888 }) 1889 matches.append ({ 1890 'data': None, 1891 'label': '%s/' % now.year 1892 }) 1893 matches.append ({ 1894 'data': None, 1895 'label': '%s/' % (now.year + 1) 1896 }) 1897 matches.append ({ 1898 'data': None, 1899 'label': '%s/' % (now.year - 1) 1900 }) 1901 1902 if val < 200 and val >= 190: 1903 for i in range(10): 1904 matches.append ({ 1905 'data': None, 1906 'label': '%s%s/' % (val, i) 1907 }) 1908 1909 return matches
1910 1911 #---------------------------------------------------------------------------
1912 -def str2fuzzy_timestamp_matches(str2parse=None, default_time=None, patterns=None):
1913 """ 1914 Turn a string into candidate fuzzy timestamps and auto-completions the user is likely to type. 1915 1916 You MUST have called locale.setlocale(locale.LC_ALL, '') 1917 somewhere in your code previously. 1918 1919 @param default_time: if you want to force the time part of the time 1920 stamp to a given value and the user doesn't type any time part 1921 this value will be used 1922 @type default_time: an mx.DateTime.DateTimeDelta instance 1923 1924 @param patterns: list of [time.strptime compatible date/time pattern, accuracy] 1925 @type patterns: list 1926 """ 1927 matches = [] 1928 1929 matches.extend(__numbers_only(str2parse)) 1930 matches.extend(__single_slash(str2parse)) 1931 1932 matches.extend ([ 1933 { 'data': cFuzzyTimestamp(timestamp = m['data'], accuracy = acc_days), 1934 'label': m['label'] 1935 } for m in __single_dot2py_dt(str2parse) 1936 ]) 1937 matches.extend ([ 1938 { 'data': cFuzzyTimestamp(timestamp = m['data'], accuracy = acc_days), 1939 'label': m['label'] 1940 } for m in __single_char2py_dt(str2parse) 1941 ]) 1942 matches.extend ([ 1943 { 'data': cFuzzyTimestamp(timestamp = m['data'], accuracy = acc_days), 1944 'label': m['label'] 1945 } for m in __explicit_offset2py_dt(str2parse) 1946 ]) 1947 1948 # reactivate, once mxDT becomes available on Py3k 1949 # # try mxDT parsers 1950 # try: 1951 # # date ? 1952 # date_only = mxDT.Parser.DateFromString ( 1953 # text = str2parse, 1954 # formats = ('euro', 'iso', 'us', 'altus', 'altiso', 'lit', 'altlit', 'eurlit') 1955 # ) 1956 # # time, too ? 1957 # time_part = mxDT.Parser.TimeFromString(text = str2parse) 1958 # datetime = date_only + time_part 1959 # if datetime == date_only: 1960 # accuracy = acc_days 1961 # if isinstance(default_time, mxDT.DateTimeDeltaType): 1962 # datetime = date_only + default_time 1963 # accuracy = acc_minutes 1964 # else: 1965 # accuracy = acc_subseconds 1966 # fts = cFuzzyTimestamp ( 1967 # timestamp = datetime, 1968 # accuracy = accuracy 1969 # ) 1970 # matches.append ({ 1971 # 'data': fts, 1972 # 'label': fts.format_accurately() 1973 # }) 1974 # except ValueError: 1975 # pass 1976 # except mxDT.RangeError: 1977 # pass 1978 1979 if patterns is None: 1980 patterns = [] 1981 patterns.extend([ 1982 ['%Y-%m-%d', acc_days], 1983 ['%y-%m-%d', acc_days], 1984 ['%Y/%m/%d', acc_days], 1985 ['%y/%m/%d', acc_days], 1986 1987 ['%d-%m-%Y', acc_days], 1988 ['%d-%m-%y', acc_days], 1989 ['%d/%m/%Y', acc_days], 1990 ['%d/%m/%y', acc_days], 1991 ['%d.%m.%Y', acc_days], 1992 1993 ['%m-%d-%Y', acc_days], 1994 ['%m-%d-%y', acc_days], 1995 ['%m/%d/%Y', acc_days], 1996 ['%m/%d/%y', acc_days] 1997 ]) 1998 for pattern in patterns: 1999 try: 2000 ts = pyDT.datetime.strptime(str2parse, pattern[0]).replace ( 2001 hour = 11, 2002 minute = 11, 2003 second = 11, 2004 tzinfo = gmCurrentLocalTimezone 2005 ) 2006 fts = cFuzzyTimestamp(timestamp = ts, accuracy = pattern[1]) 2007 matches.append ({ 2008 'data': fts, 2009 'label': fts.format_accurately() 2010 }) 2011 except ValueError: 2012 # C-level overflow 2013 continue 2014 2015 return matches
2016 2017 #=========================================================================== 2018 # fuzzy timestamp class 2019 #---------------------------------------------------------------------------
2020 -class cFuzzyTimestamp:
2021 2022 # FIXME: add properties for year, month, ... 2023 2024 """A timestamp implementation with definable inaccuracy. 2025 2026 This class contains an datetime.datetime instance to 2027 hold the actual timestamp. It adds an accuracy attribute 2028 to allow the programmer to set the precision of the 2029 timestamp. 2030 2031 The timestamp will have to be initialzed with a fully 2032 precise value (which may, of course, contain partially 2033 fake data to make up for missing values). One can then 2034 set the accuracy value to indicate up to which part of 2035 the timestamp the data is valid. Optionally a modifier 2036 can be set to indicate further specification of the 2037 value (such as "summer", "afternoon", etc). 2038 2039 accuracy values: 2040 1: year only 2041 ... 2042 7: everything including milliseconds value 2043 2044 Unfortunately, one cannot directly derive a class from mx.DateTime.DateTime :-( 2045 """ 2046 #-----------------------------------------------------------------------
2047 - def __init__(self, timestamp=None, accuracy=acc_subseconds, modifier=''):
2048 2049 if timestamp is None: 2050 timestamp = pydt_now_here() 2051 accuracy = acc_subseconds 2052 modifier = '' 2053 2054 if (accuracy < 1) or (accuracy > 8): 2055 raise ValueError('%s.__init__(): <accuracy> must be between 1 and 8' % self.__class__.__name__) 2056 2057 if not isinstance(timestamp, pyDT.datetime): 2058 raise TypeError('%s.__init__(): <timestamp> must be of datetime.datetime type, but is %s' % self.__class__.__name__, type(timestamp)) 2059 2060 if timestamp.tzinfo is None: 2061 raise ValueError('%s.__init__(): <tzinfo> must be defined' % self.__class__.__name__) 2062 2063 self.timestamp = timestamp 2064 self.accuracy = accuracy 2065 self.modifier = modifier
2066 2067 #----------------------------------------------------------------------- 2068 # magic API 2069 #-----------------------------------------------------------------------
2070 - def __str__(self):
2071 """Return string representation meaningful to a user, also for %s formatting.""" 2072 return self.format_accurately()
2073 2074 #-----------------------------------------------------------------------
2075 - def __repr__(self):
2076 """Return string meaningful to a programmer to aid in debugging.""" 2077 tmp = '<[%s]: timestamp [%s], accuracy [%s] (%s), modifier [%s] at %s>' % ( 2078 self.__class__.__name__, 2079 repr(self.timestamp), 2080 self.accuracy, 2081 _accuracy_strings[self.accuracy], 2082 self.modifier, 2083 id(self) 2084 ) 2085 return tmp
2086 2087 #----------------------------------------------------------------------- 2088 # external API 2089 #-----------------------------------------------------------------------
2090 - def strftime(self, format_string):
2091 if self.accuracy == 7: 2092 return self.timestamp.strftime(format_string) 2093 return self.format_accurately()
2094 2095 #-----------------------------------------------------------------------
2096 - def Format(self, format_string):
2097 return self.strftime(format_string)
2098 2099 #-----------------------------------------------------------------------
2100 - def format_accurately(self, accuracy=None):
2101 if accuracy is None: 2102 accuracy = self.accuracy 2103 2104 if accuracy == acc_years: 2105 return str(self.timestamp.year) 2106 2107 if accuracy == acc_months: 2108 return self.timestamp.strftime('%m/%Y') # FIXME: use 3-letter month ? 2109 2110 if accuracy == acc_weeks: 2111 return self.timestamp.strftime('%m/%Y') # FIXME: use 3-letter month ? 2112 2113 if accuracy == acc_days: 2114 return self.timestamp.strftime('%Y-%m-%d') 2115 2116 if accuracy == acc_hours: 2117 return self.timestamp.strftime("%Y-%m-%d %I%p") 2118 2119 if accuracy == acc_minutes: 2120 return self.timestamp.strftime("%Y-%m-%d %H:%M") 2121 2122 if accuracy == acc_seconds: 2123 return self.timestamp.strftime("%Y-%m-%d %H:%M:%S") 2124 2125 if accuracy == acc_subseconds: 2126 return self.timestamp.strftime("%Y-%m-%d %H:%M:%S.%f") 2127 2128 raise ValueError('%s.format_accurately(): <accuracy> (%s) must be between 1 and 7' % ( 2129 self.__class__.__name__, 2130 accuracy 2131 ))
2132 2133 #-----------------------------------------------------------------------
2134 - def get_pydt(self):
2135 return self.timestamp
2136 2137 #=========================================================================== 2138 # main 2139 #--------------------------------------------------------------------------- 2140 if __name__ == '__main__': 2141 2142 if len(sys.argv) < 2: 2143 sys.exit() 2144 2145 if sys.argv[1] != "test": 2146 sys.exit() 2147 2148 from Gnumed.pycommon import gmI18N 2149 from Gnumed.pycommon import gmLog2 2150 2151 #----------------------------------------------------------------------- 2152 intervals_as_str = [ 2153 '7', '12', ' 12', '12 ', ' 12 ', ' 12 ', '0', '~12', '~ 12', ' ~ 12', ' ~ 12 ', 2154 '12a', '12 a', '12 a', '12j', '12J', '12y', '12Y', ' ~ 12 a ', '~0a', 2155 '12m', '17 m', '12 m', '17M', ' ~ 17 m ', ' ~ 3 / 12 ', '7/12', '0/12', 2156 '12w', '17 w', '12 w', '17W', ' ~ 17 w ', ' ~ 15 / 52', '2/52', '0/52', 2157 '12d', '17 d', '12 t', '17D', ' ~ 17 T ', ' ~ 12 / 7', '3/7', '0/7', 2158 '12h', '17 h', '12 H', '17H', ' ~ 17 h ', ' ~ 36 / 24', '7/24', '0/24', 2159 ' ~ 36 / 60', '7/60', '190/60', '0/60', 2160 '12a1m', '12 a 1 M', '12 a17m', '12j 12m', '12J7m', '12y7m', '12Y7M', ' ~ 12 a 37 m ', '~0a0m', 2161 '10m1w', 2162 'invalid interval input' 2163 ] 2164 #-----------------------------------------------------------------------
2165 - def test_format_interval():
2166 intv = pyDT.timedelta(minutes=1, seconds=2) 2167 for acc in _accuracy_strings.keys(): 2168 print ('[%s]: "%s" -> "%s"' % (acc, intv, format_interval(intv, acc))) 2169 return 2170 2171 for tmp in intervals_as_str: 2172 intv = str2interval(str_interval = tmp) 2173 if intv is None: 2174 print(tmp, '->', intv) 2175 continue 2176 for acc in _accuracy_strings.keys(): 2177 print ('[%s]: "%s" -> "%s"' % (acc, tmp, format_interval(intv, acc)))
2178 2179 #-----------------------------------------------------------------------
2180 - def test_format_interval_medically():
2181 2182 intervals = [ 2183 pyDT.timedelta(seconds = 1), 2184 pyDT.timedelta(seconds = 5), 2185 pyDT.timedelta(seconds = 30), 2186 pyDT.timedelta(seconds = 60), 2187 pyDT.timedelta(seconds = 94), 2188 pyDT.timedelta(seconds = 120), 2189 pyDT.timedelta(minutes = 5), 2190 pyDT.timedelta(minutes = 30), 2191 pyDT.timedelta(minutes = 60), 2192 pyDT.timedelta(minutes = 90), 2193 pyDT.timedelta(minutes = 120), 2194 pyDT.timedelta(minutes = 200), 2195 pyDT.timedelta(minutes = 400), 2196 pyDT.timedelta(minutes = 600), 2197 pyDT.timedelta(minutes = 800), 2198 pyDT.timedelta(minutes = 1100), 2199 pyDT.timedelta(minutes = 2000), 2200 pyDT.timedelta(minutes = 3500), 2201 pyDT.timedelta(minutes = 4000), 2202 pyDT.timedelta(hours = 1), 2203 pyDT.timedelta(hours = 2), 2204 pyDT.timedelta(hours = 4), 2205 pyDT.timedelta(hours = 8), 2206 pyDT.timedelta(hours = 12), 2207 pyDT.timedelta(hours = 20), 2208 pyDT.timedelta(hours = 23), 2209 pyDT.timedelta(hours = 24), 2210 pyDT.timedelta(hours = 25), 2211 pyDT.timedelta(hours = 30), 2212 pyDT.timedelta(hours = 48), 2213 pyDT.timedelta(hours = 98), 2214 pyDT.timedelta(hours = 120), 2215 pyDT.timedelta(days = 1), 2216 pyDT.timedelta(days = 2), 2217 pyDT.timedelta(days = 4), 2218 pyDT.timedelta(days = 16), 2219 pyDT.timedelta(days = 29), 2220 pyDT.timedelta(days = 30), 2221 pyDT.timedelta(days = 31), 2222 pyDT.timedelta(days = 37), 2223 pyDT.timedelta(days = 40), 2224 pyDT.timedelta(days = 47), 2225 pyDT.timedelta(days = 126), 2226 pyDT.timedelta(days = 127), 2227 pyDT.timedelta(days = 128), 2228 pyDT.timedelta(days = 300), 2229 pyDT.timedelta(days = 359), 2230 pyDT.timedelta(days = 360), 2231 pyDT.timedelta(days = 361), 2232 pyDT.timedelta(days = 362), 2233 pyDT.timedelta(days = 363), 2234 pyDT.timedelta(days = 364), 2235 pyDT.timedelta(days = 365), 2236 pyDT.timedelta(days = 366), 2237 pyDT.timedelta(days = 367), 2238 pyDT.timedelta(days = 400), 2239 pyDT.timedelta(weeks = 52 * 30), 2240 pyDT.timedelta(weeks = 52 * 79, days = 33) 2241 ] 2242 2243 idx = 1 2244 for intv in intervals: 2245 print ('%s) %s -> %s' % (idx, intv, format_interval_medically(intv))) 2246 idx += 1
2247 #-----------------------------------------------------------------------
2248 - def test_str2interval():
2249 print ("testing str2interval()") 2250 print ("----------------------") 2251 2252 for interval_as_str in intervals_as_str: 2253 print ("input: <%s>" % interval_as_str) 2254 print (" ==>", str2interval(str_interval=interval_as_str)) 2255 2256 return True
2257 #-------------------------------------------------
2258 - def test_date_time():
2259 print ("DST currently in effect:", dst_currently_in_effect) 2260 print ("current UTC offset:", current_local_utc_offset_in_seconds, "seconds") 2261 print ("current timezone (interval):", current_local_timezone_interval) 2262 print ("current timezone (ISO conformant numeric string):", current_local_iso_numeric_timezone_string) 2263 print ("local timezone class:", cPlatformLocalTimezone) 2264 print ("") 2265 tz = cPlatformLocalTimezone() 2266 print ("local timezone instance:", tz) 2267 print (" (total) UTC offset:", tz.utcoffset(pyDT.datetime.now())) 2268 print (" DST adjustment:", tz.dst(pyDT.datetime.now())) 2269 print (" timezone name:", tz.tzname(pyDT.datetime.now())) 2270 print ("") 2271 print ("current local timezone:", gmCurrentLocalTimezone) 2272 print (" (total) UTC offset:", gmCurrentLocalTimezone.utcoffset(pyDT.datetime.now())) 2273 print (" DST adjustment:", gmCurrentLocalTimezone.dst(pyDT.datetime.now())) 2274 print (" timezone name:", gmCurrentLocalTimezone.tzname(pyDT.datetime.now())) 2275 print ("") 2276 print ("now here:", pydt_now_here()) 2277 print ("")
2278 2279 #-------------------------------------------------
2280 - def test_str2fuzzy_timestamp_matches():
2281 print ("testing function str2fuzzy_timestamp_matches") 2282 print ("--------------------------------------------") 2283 2284 val = None 2285 while val != 'exit': 2286 val = input('Enter date fragment ("exit" quits): ') 2287 matches = str2fuzzy_timestamp_matches(str2parse = val) 2288 for match in matches: 2289 print ('label shown :', match['label']) 2290 print ('data attached:', match['data'], match['data'].timestamp) 2291 print ("") 2292 print ("---------------")
2293 2294 #-------------------------------------------------
2295 - def test_cFuzzyTimeStamp():
2296 print ("testing fuzzy timestamp class") 2297 print ("-----------------------------") 2298 2299 fts = cFuzzyTimestamp() 2300 print ("\nfuzzy timestamp <%s '%s'>" % ('class', fts.__class__.__name__)) 2301 for accuracy in range(1,8): 2302 fts.accuracy = accuracy 2303 print (" accuracy : %s (%s)" % (accuracy, _accuracy_strings[accuracy])) 2304 print (" format_accurately:", fts.format_accurately()) 2305 print (" strftime() :", fts.strftime('%Y %b %d %H:%M:%S')) 2306 print (" print ... :", fts) 2307 print (" print '%%s' %% ... : %s" % fts) 2308 print (" str() :", str(fts)) 2309 print (" repr() :", repr(fts)) 2310 input('press ENTER to continue')
2311 2312 #-------------------------------------------------
2313 - def test_get_pydt():
2314 print ("testing platform for handling dates before 1970") 2315 print ("-----------------------------------------------") 2316 ts = mxDT.DateTime(1935, 4, 2) 2317 fts = cFuzzyTimestamp(timestamp=ts) 2318 print ("fts :", fts) 2319 print ("fts.get_pydt():", fts.get_pydt())
2320 #-------------------------------------------------
2321 - def test_calculate_apparent_age():
2322 # test leap year glitches 2323 start = pydt_now_here().replace(year = 2000).replace(month = 2).replace(day = 29) 2324 end = pydt_now_here().replace(year = 2012).replace(month = 2).replace(day = 27) 2325 print ("start is leap year: 29.2.2000") 2326 print (" ", calculate_apparent_age(start = start, end = end)) 2327 print (" ", format_apparent_age_medically(calculate_apparent_age(start = start))) 2328 2329 start = pydt_now_here().replace(month = 10).replace(day = 23).replace(year = 1974) 2330 end = pydt_now_here().replace(year = 2012).replace(month = 2).replace(day = 29) 2331 print ("end is leap year: 29.2.2012") 2332 print (" ", calculate_apparent_age(start = start, end = end)) 2333 print (" ", format_apparent_age_medically(calculate_apparent_age(start = start))) 2334 2335 start = pydt_now_here().replace(year = 2000).replace(month = 2).replace(day = 29) 2336 end = pydt_now_here().replace(year = 2012).replace(month = 2).replace(day = 29) 2337 print ("start is leap year: 29.2.2000") 2338 print ("end is leap year: 29.2.2012") 2339 print (" ", calculate_apparent_age(start = start, end = end)) 2340 print (" ", format_apparent_age_medically(calculate_apparent_age(start = start))) 2341 2342 print ("leap year tests worked") 2343 2344 start = pydt_now_here().replace(month = 10).replace(day = 23).replace(year = 1974) 2345 print (calculate_apparent_age(start = start)) 2346 print (format_apparent_age_medically(calculate_apparent_age(start = start))) 2347 2348 start = pydt_now_here().replace(month = 3).replace(day = 13).replace(year = 1979) 2349 print (calculate_apparent_age(start = start)) 2350 print (format_apparent_age_medically(calculate_apparent_age(start = start))) 2351 2352 start = pydt_now_here().replace(month = 2, day = 2).replace(year = 1979) 2353 end = pydt_now_here().replace(month = 3).replace(day = 31).replace(year = 1979) 2354 print (calculate_apparent_age(start = start, end = end)) 2355 2356 start = pydt_now_here().replace(month = 7, day = 21).replace(year = 2009) 2357 print (format_apparent_age_medically(calculate_apparent_age(start = start))) 2358 2359 print ("-------") 2360 start = pydt_now_here().replace(month = 1).replace(day = 23).replace(hour = 12).replace(minute = 11).replace(year = 2011) 2361 print (calculate_apparent_age(start = start)) 2362 print (format_apparent_age_medically(calculate_apparent_age(start = start)))
2363 #-------------------------------------------------
2364 - def test_str2pydt():
2365 print ("testing function str2pydt_matches") 2366 print ("---------------------------------") 2367 2368 val = None 2369 while val != 'exit': 2370 val = input('Enter date fragment ("exit" quits): ') 2371 matches = str2pydt_matches(str2parse = val) 2372 for match in matches: 2373 print ('label shown :', match['label']) 2374 print ('data attached:', match['data']) 2375 print ("") 2376 print ("---------------")
2377 2378 #-------------------------------------------------
2379 - def test_pydt_strftime():
2380 dt = pydt_now_here() 2381 print (pydt_strftime(dt, '-(%Y %b %d)-')) 2382 print (pydt_strftime(dt)) 2383 print (pydt_strftime(dt, accuracy = acc_days)) 2384 print (pydt_strftime(dt, accuracy = acc_minutes)) 2385 print (pydt_strftime(dt, accuracy = acc_seconds)) 2386 dt = dt.replace(year = 1899) 2387 print (pydt_strftime(dt)) 2388 print (pydt_strftime(dt, accuracy = acc_days)) 2389 print (pydt_strftime(dt, accuracy = acc_minutes)) 2390 print (pydt_strftime(dt, accuracy = acc_seconds)) 2391 dt = dt.replace(year = 198) 2392 print (pydt_strftime(dt, accuracy = acc_seconds))
2393 #-------------------------------------------------
2394 - def test_is_leap_year():
2395 for year in range(1995, 2017): 2396 print (year, "leaps:", is_leap_year(year))
2397 2398 #-------------------------------------------------
2399 - def test_get_date_of_weekday_in_week_of_date():
2400 dt = pydt_now_here() 2401 print('weekday', base_dt.isoweekday(), '(2day):', dt) 2402 for weekday in range(8): 2403 dt = get_date_of_weekday_in_week_of_date(weekday) 2404 print('weekday', weekday, '(same):', dt) 2405 dt = get_date_of_weekday_following_date(weekday) 2406 print('weekday', weekday, '(next):', dt) 2407 try: 2408 get_date_of_weekday_in_week_of_date(8) 2409 except ValueError as exc: 2410 print(exc) 2411 try: 2412 get_date_of_weekday_following_date(8) 2413 except ValueError as exc: 2414 print(exc)
2415 2416 #------------------------------------------------- 2417 # GNUmed libs 2418 gmI18N.activate_locale() 2419 gmI18N.install_domain('gnumed') 2420 2421 init() 2422 2423 test_date_time() 2424 #test_str2fuzzy_timestamp_matches() 2425 #test_get_date_of_weekday_in_week_of_date() 2426 #test_cFuzzyTimeStamp() 2427 #test_get_pydt() 2428 #test_str2interval() 2429 #test_format_interval() 2430 #test_format_interval_medically() 2431 #test_str2pydt() 2432 #test_pydt_strftime() 2433 #test_calculate_apparent_age() 2434 #test_is_leap_year() 2435 2436 #=========================================================================== 2437