This file is indexed.

/usr/share/pyshared/pycalendar/datetime.py is in python-pycalendar 2.0~svn13177-1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

   1
   2
   3
   4
   5
   6
   7
   8
   9
  10
  11
  12
  13
  14
  15
  16
  17
  18
  19
  20
  21
  22
  23
  24
  25
  26
  27
  28
  29
  30
  31
  32
  33
  34
  35
  36
  37
  38
  39
  40
  41
  42
  43
  44
  45
  46
  47
  48
  49
  50
  51
  52
  53
  54
  55
  56
  57
  58
  59
  60
  61
  62
  63
  64
  65
  66
  67
  68
  69
  70
  71
  72
  73
  74
  75
  76
  77
  78
  79
  80
  81
  82
  83
  84
  85
  86
  87
  88
  89
  90
  91
  92
  93
  94
  95
  96
  97
  98
  99
 100
 101
 102
 103
 104
 105
 106
 107
 108
 109
 110
 111
 112
 113
 114
 115
 116
 117
 118
 119
 120
 121
 122
 123
 124
 125
 126
 127
 128
 129
 130
 131
 132
 133
 134
 135
 136
 137
 138
 139
 140
 141
 142
 143
 144
 145
 146
 147
 148
 149
 150
 151
 152
 153
 154
 155
 156
 157
 158
 159
 160
 161
 162
 163
 164
 165
 166
 167
 168
 169
 170
 171
 172
 173
 174
 175
 176
 177
 178
 179
 180
 181
 182
 183
 184
 185
 186
 187
 188
 189
 190
 191
 192
 193
 194
 195
 196
 197
 198
 199
 200
 201
 202
 203
 204
 205
 206
 207
 208
 209
 210
 211
 212
 213
 214
 215
 216
 217
 218
 219
 220
 221
 222
 223
 224
 225
 226
 227
 228
 229
 230
 231
 232
 233
 234
 235
 236
 237
 238
 239
 240
 241
 242
 243
 244
 245
 246
 247
 248
 249
 250
 251
 252
 253
 254
 255
 256
 257
 258
 259
 260
 261
 262
 263
 264
 265
 266
 267
 268
 269
 270
 271
 272
 273
 274
 275
 276
 277
 278
 279
 280
 281
 282
 283
 284
 285
 286
 287
 288
 289
 290
 291
 292
 293
 294
 295
 296
 297
 298
 299
 300
 301
 302
 303
 304
 305
 306
 307
 308
 309
 310
 311
 312
 313
 314
 315
 316
 317
 318
 319
 320
 321
 322
 323
 324
 325
 326
 327
 328
 329
 330
 331
 332
 333
 334
 335
 336
 337
 338
 339
 340
 341
 342
 343
 344
 345
 346
 347
 348
 349
 350
 351
 352
 353
 354
 355
 356
 357
 358
 359
 360
 361
 362
 363
 364
 365
 366
 367
 368
 369
 370
 371
 372
 373
 374
 375
 376
 377
 378
 379
 380
 381
 382
 383
 384
 385
 386
 387
 388
 389
 390
 391
 392
 393
 394
 395
 396
 397
 398
 399
 400
 401
 402
 403
 404
 405
 406
 407
 408
 409
 410
 411
 412
 413
 414
 415
 416
 417
 418
 419
 420
 421
 422
 423
 424
 425
 426
 427
 428
 429
 430
 431
 432
 433
 434
 435
 436
 437
 438
 439
 440
 441
 442
 443
 444
 445
 446
 447
 448
 449
 450
 451
 452
 453
 454
 455
 456
 457
 458
 459
 460
 461
 462
 463
 464
 465
 466
 467
 468
 469
 470
 471
 472
 473
 474
 475
 476
 477
 478
 479
 480
 481
 482
 483
 484
 485
 486
 487
 488
 489
 490
 491
 492
 493
 494
 495
 496
 497
 498
 499
 500
 501
 502
 503
 504
 505
 506
 507
 508
 509
 510
 511
 512
 513
 514
 515
 516
 517
 518
 519
 520
 521
 522
 523
 524
 525
 526
 527
 528
 529
 530
 531
 532
 533
 534
 535
 536
 537
 538
 539
 540
 541
 542
 543
 544
 545
 546
 547
 548
 549
 550
 551
 552
 553
 554
 555
 556
 557
 558
 559
 560
 561
 562
 563
 564
 565
 566
 567
 568
 569
 570
 571
 572
 573
 574
 575
 576
 577
 578
 579
 580
 581
 582
 583
 584
 585
 586
 587
 588
 589
 590
 591
 592
 593
 594
 595
 596
 597
 598
 599
 600
 601
 602
 603
 604
 605
 606
 607
 608
 609
 610
 611
 612
 613
 614
 615
 616
 617
 618
 619
 620
 621
 622
 623
 624
 625
 626
 627
 628
 629
 630
 631
 632
 633
 634
 635
 636
 637
 638
 639
 640
 641
 642
 643
 644
 645
 646
 647
 648
 649
 650
 651
 652
 653
 654
 655
 656
 657
 658
 659
 660
 661
 662
 663
 664
 665
 666
 667
 668
 669
 670
 671
 672
 673
 674
 675
 676
 677
 678
 679
 680
 681
 682
 683
 684
 685
 686
 687
 688
 689
 690
 691
 692
 693
 694
 695
 696
 697
 698
 699
 700
 701
 702
 703
 704
 705
 706
 707
 708
 709
 710
 711
 712
 713
 714
 715
 716
 717
 718
 719
 720
 721
 722
 723
 724
 725
 726
 727
 728
 729
 730
 731
 732
 733
 734
 735
 736
 737
 738
 739
 740
 741
 742
 743
 744
 745
 746
 747
 748
 749
 750
 751
 752
 753
 754
 755
 756
 757
 758
 759
 760
 761
 762
 763
 764
 765
 766
 767
 768
 769
 770
 771
 772
 773
 774
 775
 776
 777
 778
 779
 780
 781
 782
 783
 784
 785
 786
 787
 788
 789
 790
 791
 792
 793
 794
 795
 796
 797
 798
 799
 800
 801
 802
 803
 804
 805
 806
 807
 808
 809
 810
 811
 812
 813
 814
 815
 816
 817
 818
 819
 820
 821
 822
 823
 824
 825
 826
 827
 828
 829
 830
 831
 832
 833
 834
 835
 836
 837
 838
 839
 840
 841
 842
 843
 844
 845
 846
 847
 848
 849
 850
 851
 852
 853
 854
 855
 856
 857
 858
 859
 860
 861
 862
 863
 864
 865
 866
 867
 868
 869
 870
 871
 872
 873
 874
 875
 876
 877
 878
 879
 880
 881
 882
 883
 884
 885
 886
 887
 888
 889
 890
 891
 892
 893
 894
 895
 896
 897
 898
 899
 900
 901
 902
 903
 904
 905
 906
 907
 908
 909
 910
 911
 912
 913
 914
 915
 916
 917
 918
 919
 920
 921
 922
 923
 924
 925
 926
 927
 928
 929
 930
 931
 932
 933
 934
 935
 936
 937
 938
 939
 940
 941
 942
 943
 944
 945
 946
 947
 948
 949
 950
 951
 952
 953
 954
 955
 956
 957
 958
 959
 960
 961
 962
 963
 964
 965
 966
 967
 968
 969
 970
 971
 972
 973
 974
 975
 976
 977
 978
 979
 980
 981
 982
 983
 984
 985
 986
 987
 988
 989
 990
 991
 992
 993
 994
 995
 996
 997
 998
 999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
##
#    Copyright (c) 2007-2012 Cyrus Daboo. All rights reserved.
#
#    Licensed under the Apache License, Version 2.0 (the "License");
#    you may not use this file except in compliance with the License.
#    You may obtain a copy of the License at
#
#        http://www.apache.org/licenses/LICENSE-2.0
#
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS,
#    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#    See the License for the specific language governing permissions and
#    limitations under the License.
##

from pycalendar import definitions
from pycalendar import locale
from pycalendar import utils
from pycalendar import xmldefs
from pycalendar.duration import PyCalendarDuration
from pycalendar.parser import ParserContext
from pycalendar.timezone import PyCalendarTimezone
from pycalendar.valueutils import ValueMixin
import cStringIO as StringIO
import time
import xml.etree.cElementTree as XML

class PyCalendarDateTime(ValueMixin):

    SUNDAY = 0
    MONDAY = 1
    TUESDAY = 2
    WEDNESDAY = 3
    THURSDAY = 4
    FRIDAY = 5
    SATURDAY = 6

    FULLDATE = 0
    ABBREVDATE = 1
    NUMERICDATE = 2
    FULLDATENOYEAR = 3
    ABBREVDATENOYEAR = 4
    NUMERICDATENOYEAR = 5

    @staticmethod
    def sort(e1, e2):

        return e1.compareDateTime(e2)


    def __init__(self, year=None, month=None, day=None, hours=None, minutes=None, seconds=None, tzid=None, utcoffset=None):

        self.mYear = 1970
        self.mMonth = 1
        self.mDay = 1

        self.mHours = 0
        self.mMinutes = 0
        self.mSeconds = 0

        self.mDateOnly = False

        self.mTZUTC = False
        self.mTZID = None
        self.mTZOffset = None

        self.mPosixTimeCached = False
        self.mPosixTime = 0

        if (year is not None) and (month is not None) and (day is not None):
            self.mYear = year
            self.mMonth = month
            self.mDay = day
            if (hours is not None) and (minutes is not None) and (seconds is not None):
                self.mHours = hours
                self.mMinutes = minutes
                self.mSeconds = seconds
            else:
                self.mDateOnly = True
            if tzid:
                self.mTZUTC = tzid.getUTC()
                self.mTZID = tzid.getTimezoneID()


    def duplicate(self):
        other = PyCalendarDateTime(self.mYear, self.mMonth, self.mDay, self.mHours, self.mMinutes, self.mSeconds)

        other.mDateOnly = self.mDateOnly

        other.mTZUTC = self.mTZUTC
        other.mTZID = self.mTZID
        other.mTZOffset = self.mTZOffset

        other.mPosixTimeCached = self.mPosixTimeCached
        other.mPosixTime = self.mPosixTime

        return other


    def duplicateAsUTC(self):
        other = self.duplicate()
        other.adjustToUTC()
        return other


    def __repr__(self):
        return "PyCalendarDateTime: %s" % (self.getText(),)


    def __hash__(self):
        return hash(self.getPosixTime())


    # Operators
    def __add__(self, duration):
        # Add duration seconds to temp object and normalise it
        result = self.duplicate()
        result.mSeconds += duration.getTotalSeconds()
        result.normalise()
        return result


    def __sub__(self, dateorduration):

        if isinstance(dateorduration, PyCalendarDateTime):

            date = dateorduration

            # Look for floating
            if self.floating() or date.floating():
                # Adjust the floating ones to fixed
                copy1 = self.duplicate()
                copy2 = date.duplicate()

                if copy1.floating() and copy2.floating():
                    # Set both to UTC and do comparison
                    copy1.setTimezoneUTC(True)
                    copy2.setTimezoneUTC(True)
                    return copy1 - copy2
                elif copy1.floating():
                    # Set to be the same
                    copy1.setTimezoneID(copy2.getTimezoneID())
                    copy1.setTimezoneUTC(copy2.getTimezoneUTC())
                    return copy1 - copy2
                else:
                    # Set to be the same
                    copy2.setTimezoneID(copy1.getTimezoneID())
                    copy2.setTimezoneUTC(copy1.getTimezoneUTC())
                    return copy1 - copy2

            else:
                # Do diff of date-time in seconds
                diff = self.getPosixTime() - date.getPosixTime()
                return PyCalendarDuration(duration=diff)

        elif isinstance(dateorduration, PyCalendarDuration):

            duration = dateorduration
            result = self.duplicate()
            result.mSeconds -= duration.getTotalSeconds()
            result.normalise()
            return result

        raise ValueError


    # Comparators
    def __eq__(self, comp):
        return self.compareDateTime(comp) == 0


    def __ne__(self, comp):
        return self.compareDateTime(comp) != 0


    def __ge__(self, comp):
        return self.compareDateTime(comp) >= 0


    def __le__(self, comp):
        return self.compareDateTime(comp) <= 0


    def __gt__(self, comp):
        return self.compareDateTime(comp) > 0


    def __lt__(self, comp):
        return self.compareDateTime(comp) < 0


    def compareDateTime(self, comp):
        if comp is None:
            return 1
        # If either are date only, then just do date compare
        if self.mDateOnly or comp.mDateOnly:
            if self.mYear == comp.mYear:
                if self.mMonth == comp.mMonth:
                    if self.mDay == comp.mDay:
                        return 0
                    else:
                        if self.mDay < comp.mDay:
                            return -1
                        else:
                            return 1
                else:
                    if self.mMonth < comp.mMonth:
                        return -1
                    else:
                        return 1
            else:
                if self.mYear < comp.mYear:
                    return -1
                else:
                    return 1

        # If they have the same timezone do simple compare - no posix calc
        # needed
        elif (PyCalendarTimezone.same(self.mTZUTC, self.mTZID, comp.mTZUTC, comp.mTZID)):
            if self.mYear == comp.mYear:
                if self.mMonth == comp.mMonth:
                    if self.mDay == comp.mDay:
                        if self.mHours == comp.mHours:
                            if self.mMinutes == comp.mMinutes:
                                if self.mSeconds == comp.mSeconds:
                                    return 0
                                else:
                                    if self.mSeconds < comp.mSeconds:
                                        return -1
                                    else:
                                        return 1
                            else:
                                if self.mMinutes < comp.mMinutes:
                                    return -1
                                else:
                                    return 1
                        else:
                            if self.mHours < comp.mHours:
                                return -1
                            else:
                                return 1
                    else:
                        if self.mDay < comp.mDay:
                            return -1
                        else:
                            return 1
                else:
                    if self.mMonth < comp.mMonth:
                        return -1
                    else:
                        return 1
            else:
                if self.mYear < comp.mYear:
                    return -1
                else:
                    return 1
        else:
            posix1 = self.getPosixTime()
            posix2 = comp.getPosixTime()
            if posix1 == posix2:
                return 0
            else:
                if posix1 < posix2:
                    return -1
                else:
                    return 1


    def compareDate(self, comp):
        return (self.mYear == comp.mYear) and (self.mMonth == comp.mMonth) and (self.mDay == comp.mDay)


    def getPosixTime(self):
        # Look for cached value (or floating time which has to be calculated
        # each time)
        if (not self.mPosixTimeCached) or self.floating():
            result = 0L

            # Add hour/mins/secs
            result = (self.mHours * 60L + self.mMinutes) * 60L + self.mSeconds

            # Number of days since 1970
            result += self.daysSince1970() * 24L * 60L * 60L

            # Adjust for timezone offset
            result -= self.timeZoneSecondsOffset()

            # Now indicate cache state
            self.mPosixTimeCached = True
            self.mPosixTime = result

        return self.mPosixTime


    def isDateOnly(self):
        return self.mDateOnly


    def setDateOnly(self, date_only):
        self.mDateOnly = date_only
        self.changed()


    def getYear(self):
        return self.mYear


    def setYear(self, year):
        if self.mYear != year:
            self.mYear = year
            self.changed()


    def offsetYear(self, diff_year):
        self.mYear += diff_year
        self.normalise()


    def getMonth(self):
        return self.mMonth


    def setMonth(self, month):
        if self.mMonth != month:
            self.mMonth = month
            self.changed()


    def offsetMonth(self, diff_month):
        self.mMonth += diff_month
        self.normalise()


    def getDay(self):
        return self.mDay


    def setDay(self, day):
        if self.mDay != day:
            self.mDay = day
            self.changed()


    def offsetDay(self, diff_day):
        self.mDay += diff_day
        self.normalise()


    def setYearDay(self, day, allow_invalid=False):
        # 1 .. 366 offset from start, or
        # -1 .. -366 offset from end

        if day == 366:
            self.mMonth = 12
            self.mDay = 31 if utils.isLeapYear(self.mYear) else 32

        elif day == -366:
            self.mMonth = 1 if utils.isLeapYear(self.mYear) else 1
            self.mDay = 1 if utils.isLeapYear(self.mYear) else 0

        elif day > 0:
            # Offset current date to 1st January of current year
            self.mMonth = 1
            self.mDay = 1

            # Increment day
            self.mDay += day - 1

        elif day < 0:
            # Offset current date to 1st January of next year
            self.mMonth = 12
            self.mDay = 31

            # Decrement day
            self.mDay += day + 1

        if not allow_invalid:
            # Normalise to get proper year/month/day values
            self.normalise()
        else:
            self.changed()


    def getYearDay(self):
        return self.mDay + utils.daysUptoMonth(self.mMonth, self.mYear)


    def setMonthDay(self, day, allow_invalid=False):
        # 1 .. 31 offset from start, or
        # -1 .. -31 offset from end

        if day > 0:
            # Offset current date to 1st of current month
            self.mDay = 1

            # Increment day
            self.mDay += day - 1

        elif day < 0:
            # Offset current date to last of month
            self.mDay = utils.daysInMonth(self.mMonth, self.mYear)

            # Decrement day
            self.mDay += day + 1

        if not allow_invalid:
            # Normalise to get proper year/month/day values
            self.normalise()
        else:
            self.changed()


    def isMonthDay(self, day):
        if day > 0:
            return self.mDay == day
        elif day < 0:
            return self.mDay - 1 - utils.daysInMonth(self.mMonth, self.mYear) == day
        else:
            return False


    def setWeekNo(self, weekno):
        """
        Set the current date to one with the same day of the week in the current year with the
        specified week number. Note this might cause the year to shift backwards or forwards
        if the date is at the boundary between two years.

        @param weekno: the week number to set (currently must be positive)
        @type weekno: C{int}
        """

        # Don't both if already correct
        if self.getWeekNo() == weekno:
            return

        # What day does the current year start on, and diff that with the current day
        temp = PyCalendarDateTime(year=self.mYear, month=1, day=1)
        first_day = temp.getDayOfWeek()
        current_day = self.getDayOfWeek()

        # Calculate and set yearday for start of week. The first week is the one that contains at least
        # four days (with week start defaulting to MONDAY), so that means the 1st of January would fall
        # on MO, TU, WE, TH.
        if first_day in (PyCalendarDateTime.MONDAY, PyCalendarDateTime.TUESDAY, PyCalendarDateTime.WEDNESDAY, PyCalendarDateTime.THURSDAY):
            year_day = (weekno - 1) * 7 + current_day - first_day
        else:
            year_day = weekno * 7 + current_day - first_day

        # It is possible we have a negative offset which means go back to the prior year as part of
        # week #1 exists at the end of that year.
        if year_day < 0:
            self.offsetYear(-1)
        else:
            year_day += 1
        self.setYearDay(year_day)


    def getWeekNo(self):
        """
        Return the ISO week number for the current date.
        """

        # What day does the current year start on
        temp = PyCalendarDateTime(year=self.mYear, month=1, day=1)
        first_day = temp.getDayOfWeek()
        if first_day == 0:
            first_day = 7
        current_day = self.getDayOfWeek()
        if current_day == 0:
            current_day = 7

        # This arithmetic uses the ISO day of week (1-7) and the year day to get the week number
        week_no = (self.getYearDay() - current_day + 10) / 7

        # Might need to adjust forward/backwards based on year boundaries
        if week_no == 0:
            # Last week of previous year
            temp = PyCalendarDateTime(year=self.mYear - 1, month=12, day=31)
            week_no = temp.getWeekNo()
        elif week_no == 53:
            # Might be first week of next year
            temp = PyCalendarDateTime(year=self.mYear + 1, month=1, day=1)
            first_day = temp.getDayOfWeek()
            if first_day in (PyCalendarDateTime.MONDAY, PyCalendarDateTime.TUESDAY, PyCalendarDateTime.WEDNESDAY, PyCalendarDateTime.THURSDAY):
                week_no = 1

        return week_no


    def isWeekNo(self, weekno):
        # This is the iso 8601 week number definition

        if weekno > 0:
            return self.getWeekNo() == weekno
        else:
            # This needs to calculate the negative offset from the last week in
            # the current year
            return False


    def setDayOfWeekInYear(self, offset, day):
        # Set to first day in year
        self.mMonth = 1
        self.mDay = 1

        # Determine first weekday in year
        first_day = self.getDayOfWeek()

        if offset > 0:
            cycle = (offset - 1) * 7 + day
            cycle -= first_day
            if first_day > day:
                cycle += 7
            self.mDay = cycle + 1
        elif offset < 0:
            first_day += 365 + [1, 0][not utils.isLeapYear(self.mYear)] - 1
            first_day %= 7

            cycle = (-offset - 1) * 7 - day
            cycle += first_day
            if day > first_day:
                cycle += 7
            self.mDay = 365 + [1, 0][not utils.isLeapYear(self.mYear)] - cycle

        self.normalise()


    def setDayOfWeekInMonth(self, offset, day, allow_invalid=False):
        # Set to first day in month
        self.mDay = 1

        # Determine first weekday in month
        first_day = self.getDayOfWeek()

        if offset > 0:
            cycle = (offset - 1) * 7 + day
            cycle -= first_day
            if first_day > day:
                cycle += 7
            self.mDay = cycle + 1
        elif offset < 0:
            days_in_month = utils.daysInMonth(self.mMonth, self.mYear)
            first_day += days_in_month - 1
            first_day %= 7

            cycle = (-offset - 1) * 7 - day
            cycle += first_day
            if day > first_day:
                cycle += 7
            self.mDay = days_in_month - cycle

        if not allow_invalid:
            self.normalise()
        else:
            self.changed()


    def setNextDayOfWeek(self, start, day):
        # Set to first day in month
        self.mDay = start

        # Determine first weekday in month
        first_day = self.getDayOfWeek()

        if first_day > day:
            self.mDay += 7

        self.mDay += day - first_day

        self.normalise()


    def isDayOfWeekInMonth(self, offset, day):
        # First of the actual day must match
        if self.getDayOfWeek() != day:
            return False

        # If there is no count the we match any of this day in the month
        if offset == 0:
            return True

        # Create temp date-time with the appropriate parameters and then
        # compare
        temp = self.duplicate()
        temp.setDayOfWeekInMonth(offset, day)

        # Now compare dates
        return self.compareDate(temp)


    def getDayOfWeek(self):
        # Count days since 01-Jan-1970 which was a Thursday
        result = PyCalendarDateTime.THURSDAY + self.daysSince1970()
        result %= 7
        if result < 0:
            result += 7

        return result


    def getMonthText(self, short_txt):
        # Make sure range is valid
        if (self.mMonth < 1) or (self.mMonth > 12):
            return ""
        else:
            return locale.getMonth(self.mMonth,
                    [locale.SHORT, locale.LONG][not short_txt])


    def getDayOfWeekText(self, day):
        return locale.getDay(day, locale.SHORT)


    def setHHMMSS(self, hours, minutes, seconds):
        if (self.mHours != hours) or (self.mMinutes != minutes) or (self.mSeconds != seconds):
            self.mHours = hours
            self.mMinutes = minutes
            self.mSeconds = seconds
            self.changed()


    def getHours(self):
        return self.mHours


    def setHours(self, hours):
        if self.mHours != hours:
            self.mHours = hours
            self.changed()


    def offsetHours(self, diff_hour):
        self.mHours += diff_hour
        self.normalise()


    def getMinutes(self):
        return self.mMinutes


    def setMinutes(self, minutes):
        if self.mMinutes != minutes:
            self.mMinutes = minutes
            self.changed()


    def offsetMinutes(self, diff_minutes):
        self.mMinutes += diff_minutes
        self.normalise()


    def getSeconds(self):
        return self.mSeconds


    def setSeconds(self, seconds):
        if self.mSeconds != seconds:
            self.mSeconds = seconds
            self.changed()


    def offsetSeconds(self, diff_seconds):
        self.mSeconds += diff_seconds
        self.normalise()


    def getTimezoneUTC(self):
        return self.mTZUTC


    def setTimezoneUTC(self, utc):
        if self.mTZUTC != utc:
            self.mTZUTC = utc
            self.changed()


    def getTimezoneID(self):
        return self.mTZID


    def setTimezoneID(self, tzid):
        self.mTZUTC = False
        self.mTZID = tzid
        self.changed()


    def utc(self):
        return self.mTZUTC


    def local(self):
        return (not self.mTZUTC) and self.mTZID


    def floating(self):
        return (not self.mTZUTC) and not self.mTZID


    def getTimezone(self):
        return PyCalendarTimezone(utc=self.mTZUTC, tzid=self.mTZID)


    def setTimezone(self, tzid):
        self.mTZUTC = tzid.getUTC()
        self.mTZID = tzid.getTimezoneID()
        self.changed()


    def adjustTimezone(self, tzid):
        # Only if different
        s1 = tzid.getTimezoneID()
        if (tzid.getUTC() != self.mTZUTC) or (s1 != self.mTZID):
            if not self.mTZUTC:
                self.adjustToUTC()
            self.setTimezone(tzid)
            offset_to = self.timeZoneSecondsOffset(relative_to_utc=True)
            self.offsetSeconds(offset_to)
        return self


    def adjustToUTC(self):
        if self.local() and not self.mDateOnly:
            # Cache and restore and adjust the posix value to avoid a recalc since it won't change during this adjust
            tempPosix = self.mPosixTime if self.mPosixTimeCached else None

            utc = PyCalendarTimezone(utc=True)

            offset_from = self.timeZoneSecondsOffset()
            self.setTimezone(utc)

            self.offsetSeconds(-offset_from)

            if tempPosix is not None:
                self.mPosixTimeCached = True
                self.mPosixTime = tempPosix

            self.mTZOffset = 0

        return self


    def getAdjustedTime(self, tzid=None):
        # Copy this and adjust to input timezone
        adjusted = self.duplicate()
        adjusted.adjustTimezone(tzid)
        return adjusted


    def setToday(self):
        tz = PyCalendarTimezone(utc=self.mTZUTC, tzid=self.mTZID)
        self.copy_ICalendarDateTime(self.getToday(tz))


    @staticmethod
    def getToday(tzid=None):
        # Get from posix time
        now = time.time()
        now_tm = time.localtime(now)

        temp = PyCalendarDateTime(year=now_tm.tm_year, month=now_tm.tm_mon, day=now_tm.tm_mday, tzid=tzid)
        return temp


    def setNow(self):
        tz = PyCalendarTimezone(utc=self.mTZUTC, tzid=self.mTZID)
        self.copy_ICalendarDateTime(self.getNow(tz))


    @staticmethod
    def getNow(tzid):
        utc = PyCalendarDateTime.getNowUTC()
        utc.adjustTimezone(tzid if tzid is not None else PyCalendarTimezone())
        return utc


    def setNowUTC(self):
        self.copy_PyCalendarDateTime(self.getNowUTC())


    @staticmethod
    def getNowUTC():
        # Get from posix time
        now = time.time()
        now_tm = time.gmtime(now)
        tzid = PyCalendarTimezone(utc=True)

        return PyCalendarDateTime(year=now_tm.tm_year, month=now_tm.tm_mon, day=now_tm.tm_mday, hours=now_tm.tm_hour, minutes=now_tm.tm_min, seconds=now_tm.tm_sec, tzid=tzid)


    def recur(self, freq, interval, allow_invalid=False):
        # Add appropriate interval
        normalize = True
        if freq == definitions.eRecurrence_SECONDLY:
            self.mSeconds += interval
        elif freq == definitions.eRecurrence_MINUTELY:
            self.mMinutes += interval
        elif freq == definitions.eRecurrence_HOURLY:
            self.mHours += interval
        elif freq == definitions.eRecurrence_DAILY:
            self.mDay += interval
        elif freq == definitions.eRecurrence_WEEKLY:
            self.mDay += 7 * interval
        elif freq == definitions.eRecurrence_MONTHLY:
            # Iterate until a valid day in the next month is found.
            # This can happen if adding one month to e.g. 31 January.
            # That is an undefined operation - does it mean 28/29 February
            # or 1/2 May, or 31 March or what? We choose to find the next month with
            # the same day number as the current one.
            self.mMonth += interval

            # Normalise month
            normalised_month = ((self.mMonth - 1) % 12) + 1
            adjustment_year = (self.mMonth - 1) / 12
            if (normalised_month - 1) < 0:
                normalised_month += 12
                adjustment_year -= 1
            self.mMonth = normalised_month
            self.mYear += adjustment_year

            if not allow_invalid:
                self.normalise()
                while self.mDay > utils.daysInMonth(self.mMonth, self.mYear):
                    self.mMonth += interval
                    self.normalise()
            normalize = False
        elif freq == definitions.eRecurrence_YEARLY:
            self.mYear += interval
            if allow_invalid:
                normalize = False

        if normalize:
            # Normalise to standard date-time ranges
            self.normalise()
        else:
            self.changed()


    def getLocaleDate(self, locale):

        buf = StringIO.StringIO()

        if locale == PyCalendarDateTime.FULLDATE:
            buf.write(locale.getDay(self.getDayOfWeek(), locale.LONG))
            buf.write(", ")
            buf.write(locale.getMonth(self.mMonth, locale.LONG))
            buf.write(" ")
            buf.write(str(self.mDay))
            buf.write(", ")
            buf.write(str(self.mYear))
        elif locale == PyCalendarDateTime.ABBREVDATE:
            buf.write(locale.getDay(self.getDayOfWeek(), locale.SHORT))
            buf.write(", ")
            buf.write(locale.getMonth(self.mMonth, locale.SHORT))
            buf.write(" ")
            buf.write(str(self.mDay))
            buf.write(", ")
            buf.write(str(self.mYear))
        elif locale == PyCalendarDateTime.NUMERICDATE:
            buf.write(str(self.mMonth))
            buf.write("/")
            buf.write(str(self.mDay))
            buf.write("/")
            buf.write(str(self.mYear))
        elif locale == PyCalendarDateTime.FULLDATENOYEAR:
            buf.write(locale.getDay(self.getDayOfWeek(), locale.LONG))
            buf.write(", ")
            buf.write(locale.getMonth(self.mMonth, locale.LONG))
            buf.write(" ")
            buf.write(str(self.mDay))
        elif locale == PyCalendarDateTime.ABBREVDATENOYEAR:
            buf.write(locale.getDay(self. getDayOfWeek(), locale.SHORT))
            buf.write(", ")
            buf.write(locale.getMonth(self.mMonth, locale.SHORT))
            buf.write(" ")
            buf.write(str(self.mDay))
        elif locale == PyCalendarDateTime.NUMERICDATENOYEAR:
            buf.write(str(self.mMonth))
            buf.write("/")
            buf.write(str(self.mDay))

        return buf.getvalue()


    def getTime(self, with_seconds, am_pm, tzid):

        buf = StringIO.StringIO()
        adjusted_hour = self.mHours

        if am_pm:
            am = True
            if adjusted_hour >= 12:
                adjusted_hour -= 12
                am = False

            if adjusted_hour == 0:
                adjusted_hour = 12

            buf.write(str(adjusted_hour))
            buf.write(":")
            if self.mMinutes < 10:
                buf.write("0")
            buf.write(str(self.mMinutes))
            if with_seconds:
                buf.write(":")
                if self.mSeconds < 10:
                    buf.write("0")
                buf.write(str(self.mSeconds))

            buf.write([" AM", " PM"][not am])
        else:
            if self.mHours < 10:
                buf.write("0")
            buf.write(str(self.mHours))
            buf.write(":")
            if self.mMinutes < 10:
                buf.write("0")
            buf.write(str(self.mMinutes))
            if with_seconds:
                buf.write(":")
                if self.mSeconds < 10:
                    buf.write("0")
                buf.write(str(self.mSeconds))

        if tzid:
            desc = self.timeZoneDescriptor()
            if len(desc) > 0:
                buf.write(" ")
                buf.write(desc)

        return buf.getvalue()


    def getLocaleDateTime(self, locale, with_seconds, am_pm, tzid):
        return self.getLocaleDate(locale) + " " + self.getTime(with_seconds, am_pm, tzid)


    def getText(self):

        if self.mDateOnly:
            return "%04d%02d%02d" % (self.mYear, self.mMonth, self.mDay)
        else:
            if self.mTZUTC:
                return "%04d%02d%02dT%02d%02d%02dZ" % (self.mYear, self.mMonth, self.mDay, self.mHours, self.mMinutes, self.mSeconds)
            elif isinstance(self.mTZID, int):
                sign = "-" if self.mTZID < 0 else "+"
                hours = abs(self.mTZID) / 3600
                minutes = divmod(abs(self.mTZID) / 60, 60)[1]
                return "%04d%02d%02dT%02d%02d%02d%s%02d%02d" % (self.mYear, self.mMonth, self.mDay, self.mHours, self.mMinutes, self.mSeconds, sign, hours, minutes)
            else:
                return "%04d%02d%02dT%02d%02d%02d" % (self.mYear, self.mMonth, self.mDay, self.mHours, self.mMinutes, self.mSeconds)


    def getXMLText(self):

        if self.mDateOnly:
            return "%04d-%02d-%02d" % (self.mYear, self.mMonth, self.mDay)
        else:
            if self.mTZUTC:
                return "%04d-%02d-%02dT%02d:%02d:%02dZ" % (self.mYear, self.mMonth, self.mDay, self.mHours, self.mMinutes, self.mSeconds)
            elif isinstance(self.mTZID, int):
                sign = "-" if self.mTZID < 0 else "+"
                hours = abs(self.mTZID) / 3600
                minutes = divmod(abs(self.mTZID) / 60, 60)[1]
                return "%04d-%02d-%02dT%02d:%02d:%02d%s%02d:%02d" % (self.mYear, self.mMonth, self.mDay, self.mHours, self.mMinutes, self.mSeconds, sign, hours, minutes)
            else:
                return "%04d-%02d-%02dT%02d:%02d:%02d" % (self.mYear, self.mMonth, self.mDay, self.mHours, self.mMinutes, self.mSeconds)


    @classmethod
    def parseText(cls, data, fullISO=False):
        dt = cls()
        dt.parse(data, fullISO)
        return dt


    def parseDate(self, data, fullISO):
        # Get year
        self.mYear = int(data[0:4])
        index = 4
        if fullISO and data[index] == "-":
            index += 1

        # Get month
        self.mMonth = int(data[index:index + 2])
        index += 2
        if fullISO and data[index] == "-":
            index += 1

        # Get day
        self.mDay = int(data[index:index + 2])
        index += 2

        if ' ' in data[:index] and ParserContext.INVALID_DATETIME_LEADINGSPACE == ParserContext.PARSER_RAISE:
            raise ValueError
        if self.mYear < 0 or self.mMonth < 0 or self.mDay < 0:
            raise ValueError
        return index


    def parseTime(self, data, index, fullISO):
        # Get hours
        self.mHours = int(data[index:index + 2])
        index += 2
        if fullISO and data[index] == ":":
            index += 1

        # Get minutes
        self.mMinutes = int(data[index:index + 2])
        index += 2
        if fullISO and data[index] == ":":
            index += 1

        # Get seconds
        self.mSeconds = int(data[index:index + 2])
        index += 2

        return index


    def parseFractionalAndUTCOffset(self, data, index, dlen):
        # Optional fraction
        if data[index] == ",":
            index += 1
            if not data[index].isdigit():
                raise ValueError
            while index < dlen and data[index].isdigit():
                index += 1

        # Optional timezone descriptor
        if index < dlen:
            if data[index] == "Z":
                index += 1
                self.mTZUTC = True
            else:
                if data[index] == "+":
                    sign = 1
                elif data[index] == "-":
                    sign = -1
                else:
                    raise ValueError
                index += 1

                # Get hours
                hours_offset = int(data[index:index + 2])
                index += 2
                if data[index] == ":":
                    index += 1

                # Get minutes
                minutes_offset = int(data[index:index + 2])
                index += 2

                self.mTZID = sign * (hours_offset * 60 + minutes_offset) * 60

        if index < dlen:
            raise ValueError
        return index


    def parse(self, data, fullISO=False):

        # iCalendar:
        #   parse format YYYYMMDD[THHMMSS[Z]]
        # vCard (fullISO)
        #   parse format YYYY[-]MM[-]DD[THH[:]MM[:]SS[(Z/(+/-)HHMM]]

        try:
            # Parse out the date
            index = self.parseDate(data, fullISO)

            # Now look for more
            dlen = len(data)
            if index < dlen:

                if data[index] != 'T':
                    raise ValueError
                index += 1

                # Parse out the time
                index = self.parseTime(data, index, fullISO)
                self.mDateOnly = False

                if index < dlen:
                    if fullISO:
                        index = self.parseFractionalAndUTCOffset(data, index, dlen)
                    else:
                        if index < dlen:
                            if data[index] != 'Z':
                                raise ValueError
                            index += 1
                            self.mTZUTC = True
                            if index < dlen:
                                raise ValueError
                else:
                    self.mTZUTC = False
            else:
                self.mDateOnly = True
        except IndexError:
            raise ValueError

        # Always uncache posix time
        self.changed()


    def generate(self, os):
        try:
            os.write(self.getText())
        except:
            pass


    def generateRFC2822(self, os):
        pass


    def writeXML(self, node, namespace):
        value = XML.SubElement(
            node,
            xmldefs.makeTag(
                namespace,
                xmldefs.value_date if self.isDateOnly() else xmldefs.value_date_time
        ))
        value.text = self.getXMLText()


    def invalid(self):
        """
        Are any of the current fields invalid.
        """

        # Right now we only care about invalid days of the month (e.g. February 30th). In the
        # future we may also want to look for invalid times during a DST transition.

        if self.mDay <= 0 or self.mDay > utils.daysInMonth(self.mMonth, self.mYear):
            return True

        return False


    def normalise(self):
        # Normalise seconds
        normalised_secs = self.mSeconds % 60
        adjustment_mins = self.mSeconds / 60
        if normalised_secs < 0:
            normalised_secs += 60
            adjustment_mins -= 1
        self.mSeconds = normalised_secs
        self.mMinutes += adjustment_mins

        # Normalise minutes
        normalised_mins = self.mMinutes % 60
        adjustment_hours = self.mMinutes / 60
        if normalised_mins < 0:
            normalised_mins += 60
            adjustment_hours -= 1
        self.mMinutes = normalised_mins
        self.mHours += adjustment_hours

        # Normalise hours
        normalised_hours = self.mHours % 24
        adjustment_days = self.mHours / 24
        if normalised_hours < 0:
            normalised_hours += 24
            adjustment_days -= 1
        self.mHours = normalised_hours
        self.mDay += adjustment_days

        # Wipe the time if date only
        if self.mDateOnly:
            self.mSeconds = self.mMinutes = self.mHours = 0

        # Adjust the month first, since the day adjustment is month dependent

        # Normalise month
        normalised_month = ((self.mMonth - 1) % 12) + 1
        adjustment_year = (self.mMonth - 1) / 12
        if (normalised_month - 1) < 0:
            normalised_month += 12
            adjustment_year -= 1
        self.mMonth = normalised_month
        self.mYear += adjustment_year

        # Now do days
        if self.mDay > 0:
            while self.mDay > utils.daysInMonth(self.mMonth, self.mYear):
                self.mDay -= utils.daysInMonth(self.mMonth, self.mYear)
                self.mMonth += 1
                if self.mMonth > 12:
                    self.mMonth = 1
                    self.mYear += 1
        else:
            while self.mDay <= 0:
                self.mMonth -= 1
                if self.mMonth < 1:
                    self.mMonth = 12
                    self.mYear -= 1
                self.mDay += utils.daysInMonth(self.mMonth, self.mYear)

        # Always invalidate posix time cache
        self.changed()


    def timeZoneSecondsOffset(self, relative_to_utc=False):
        if self.mTZUTC:
            return 0
        if self.mTZOffset is None:
            tz = PyCalendarTimezone(utc=self.mTZUTC, tzid=self.mTZID)
            self.mTZOffset = tz.timeZoneSecondsOffset(self, relative_to_utc)
        return self.mTZOffset


    def timeZoneDescriptor(self):
        tz = PyCalendarTimezone(utc=self.mTZUTC, tzid=self.mTZID)
        return tz.timeZoneDescriptor(self)


    def changed(self):
        self.mPosixTimeCached = False
        self.mTZOffset = None


    def daysSince1970(self):
        # Add days between 1970 and current year (ignoring leap days)
        result = (self.mYear - 1970) * 365

        # Add leap days between years
        result += utils.leapDaysSince1970(self.mYear - 1970)

        # Add days in current year up to current month (includes leap day for
        # current year as needed)
        result += utils.daysUptoMonth(self.mMonth, self.mYear)

        # Add days in month
        result += self.mDay - 1

        return result