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annotate roundup/date.py @ 3854:f4e8dc583256

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Restored subject parser regexp to the string it was before the... ...implementation of customization of it, i.e., the version from CVS revision 1.184 of mailgw.py. This makes 'testFollowupTitleMatchMultiRe' work again.
author Erik Forsberg <forsberg@users.sourceforge.net>
date Sat, 12 May 2007 16:14:54 +0000
parents f5bb1ad47268
children 78dc9b275aeb
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1 #
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2 # Copyright (c) 2001 Bizar Software Pty Ltd (http://www.bizarsoftware.com.au/)
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3 # This module is free software, and you may redistribute it and/or modify
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4 # under the same terms as Python, so long as this copyright message and
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5 # disclaimer are retained in their original form.
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6 #
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7 # IN NO EVENT SHALL BIZAR SOFTWARE PTY LTD BE LIABLE TO ANY PARTY FOR
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8 # DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING
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9 # OUT OF THE USE OF THIS CODE, EVEN IF THE AUTHOR HAS BEEN ADVISED OF THE
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10 # POSSIBILITY OF SUCH DAMAGE.
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11 #
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12 # BIZAR SOFTWARE PTY LTD SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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13 # BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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14 # FOR A PARTICULAR PURPOSE. THE CODE PROVIDED HEREUNDER IS ON AN "AS IS"
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15 # BASIS, AND THERE IS NO OBLIGATION WHATSOEVER TO PROVIDE MAINTENANCE,
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16 # SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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17 #
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18 # $Id: date.py,v 1.92 2007-03-14 15:07:24 schlatterbeck Exp $
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19
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20 """Date, time and time interval handling.
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21 """
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22 __docformat__ = 'restructuredtext'
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24 import calendar
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25 import datetime
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26 import time
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27 import re
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28
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29 try:
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30 import pytz
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31 except ImportError:
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32 pytz = None
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33
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34 from roundup import i18n
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35
1597
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36 def _add_granularity(src, order, value = 1):
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37 '''Increment first non-None value in src dictionary ordered by 'order'
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38 parameter
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39 '''
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40 for gran in order:
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41 if src[gran]:
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42 src[gran] = int(src[gran]) + value
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43 break
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44
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45 # no, I don't know why we must anchor the date RE when we only ever use it
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46 # in a match()
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47 date_re = re.compile(r'''^
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48 ((?P<y>\d\d\d\d)([/-](?P<m>\d\d?)([/-](?P<d>\d\d?))?)? # yyyy[-mm[-dd]]
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49 |(?P<a>\d\d?)[/-](?P<b>\d\d?))? # or mm-dd
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50 (?P<n>\.)? # .
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51 (((?P<H>\d?\d):(?P<M>\d\d))?(:(?P<S>\d\d?(\.\d+)?))?)? # hh:mm:ss
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52 (?P<o>[\d\smywd\-+]+)? # offset
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53 $''', re.VERBOSE)
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54 serialised_date_re = re.compile(r'''
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55 (\d{4})(\d\d)(\d\d)(\d\d)(\d\d)(\d\d?(\.\d+)?)
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56 ''', re.VERBOSE)
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58 _timedelta0 = datetime.timedelta(0)
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59
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60 # load UTC tzinfo
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61 if pytz:
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62 UTC = pytz.utc
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63 else:
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64 # fallback implementation from Python Library Reference
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65
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66 class _UTC(datetime.tzinfo):
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67
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68 """Universal Coordinated Time zoneinfo"""
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69
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70 def utcoffset(self, dt):
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71 return _timedelta0
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72
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73 def tzname(self, dt):
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74 return "UTC"
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75
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76 def dst(self, dt):
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77 return _timedelta0
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78
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79 def __repr__(self):
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80 return "<UTC>"
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81
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82 # pytz adjustments interface
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83 # Note: pytz verifies that dt is naive datetime for localize()
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84 # and not naive datetime for normalize().
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85 # In this implementation, we don't care.
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86
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87 def normalize(self, dt, is_dst=False):
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88 return dt.replace(tzinfo=self)
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89
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90 def localize(self, dt, is_dst=False):
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91 return dt.replace(tzinfo=self)
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92
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93 UTC = _UTC()
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94
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95 # integral hours offsets were available in Roundup versions prior to 1.1.3
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96 # and still are supported as a fallback if pytz module is not installed
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97 class SimpleTimezone(datetime.tzinfo):
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98
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99 """Simple zoneinfo with fixed numeric offset and no daylight savings"""
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100
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101 def __init__(self, offset=0, name=None):
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102 super(SimpleTimezone, self).__init__()
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103 self.offset = offset
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104 if name:
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105 self.name = name
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106 else:
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107 self.name = "Etc/GMT%+d" % self.offset
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108
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109 def utcoffset(self, dt):
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110 return datetime.timedelta(hours=self.offset)
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111
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112 def tzname(self, dt):
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113 return self.name
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114
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115 def dst(self, dt):
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116 return _timedelta0
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117
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118 def __repr__(self):
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119 return "<%s: %s>" % (self.__class__.__name__, self.name)
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120
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121 # pytz adjustments interface
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122
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123 def normalize(self, dt):
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124 return dt.replace(tzinfo=self)
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125
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126 def localize(self, dt, is_dst=False):
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127 return dt.replace(tzinfo=self)
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128
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129 # simple timezones with fixed offset
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130 _tzoffsets = dict(GMT=0, UCT=0, EST=5, MST=7, HST=10)
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131
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132 def get_timezone(tz):
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133 # if tz is None, return None (will result in naive datetimes)
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134 # XXX should we return UTC for None?
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135 if tz is None:
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136 return None
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137 # try integer offset first for backward compatibility
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138 try:
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139 utcoffset = int(tz)
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140 except (TypeError, ValueError):
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141 pass
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142 else:
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143 if utcoffset == 0:
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144 return UTC
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145 else:
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146 return SimpleTimezone(utcoffset)
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147 # tz is a timezone name
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148 if pytz:
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149 return pytz.timezone(tz)
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150 elif tz == "UTC":
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151 return UTC
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152 elif tz in _tzoffsets:
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153 return SimpleTimezone(_tzoffsets[tz], tz)
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154 else:
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155 raise KeyError, tz
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156
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157 def _utc_to_local(y,m,d,H,M,S,tz):
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158 TZ = get_timezone(tz)
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159 frac = S - int(S)
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160 dt = datetime.datetime(y, m, d, H, M, int(S), tzinfo=UTC)
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161 y,m,d,H,M,S = dt.astimezone(TZ).timetuple()[:6]
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162 S = S + frac
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163 return (y,m,d,H,M,S)
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164
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165 def _local_to_utc(y,m,d,H,M,S,tz):
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166 TZ = get_timezone(tz)
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167 dt = datetime.datetime(y,m,d,H,M,int(S))
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168 y,m,d,H,M,S = TZ.localize(dt).utctimetuple()[:6]
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169 return (y,m,d,H,M,S)
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170
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171 class Date:
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172 '''
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173 As strings, date-and-time stamps are specified with the date in
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174 international standard format (yyyy-mm-dd) joined to the time
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175 (hh:mm:ss) by a period ("."). Dates in this form can be easily compared
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176 and are fairly readable when printed. An example of a valid stamp is
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177 "2000-06-24.13:03:59". We'll call this the "full date format". When
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178 Timestamp objects are printed as strings, they appear in the full date
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179 format with the time always given in GMT. The full date format is
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180 always exactly 19 characters long.
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181
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182 For user input, some partial forms are also permitted: the whole time
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183 or just the seconds may be omitted; and the whole date may be omitted
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184 or just the year may be omitted. If the time is given, the time is
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185 interpreted in the user's local time zone. The Date constructor takes
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186 care of these conversions. In the following examples, suppose that yyyy
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187 is the current year, mm is the current month, and dd is the current day
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188 of the month; and suppose that the user is on Eastern Standard Time.
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189 Examples::
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190
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191 "2000-04-17" means <Date 2000-04-17.00:00:00>
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192 "01-25" means <Date yyyy-01-25.00:00:00>
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193 "2000-04-17.03:45" means <Date 2000-04-17.08:45:00>
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194 "08-13.22:13" means <Date yyyy-08-14.03:13:00>
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195 "11-07.09:32:43" means <Date yyyy-11-07.14:32:43>
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196 "14:25" means <Date yyyy-mm-dd.19:25:00>
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197 "8:47:11" means <Date yyyy-mm-dd.13:47:11>
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198 "2003" means <Date 2003-01-01.00:00:00>
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199 "2003-06" means <Date 2003-06-01.00:00:00>
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200 "." means "right now"
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201
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202 The Date class should understand simple date expressions of the form
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203 stamp + interval and stamp - interval. When adding or subtracting
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204 intervals involving months or years, the components are handled
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205 separately. For example, when evaluating "2000-06-25 + 1m 10d", we
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206 first add one month to get 2000-07-25, then add 10 days to get
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207 2000-08-04 (rather than trying to decide whether 1m 10d means 38 or 40
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208 or 41 days). Example usage::
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209
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210 >>> Date(".")
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211 <Date 2000-06-26.00:34:02>
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212 >>> _.local(-5)
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213 "2000-06-25.19:34:02"
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214 >>> Date(". + 2d")
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215 <Date 2000-06-28.00:34:02>
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216 >>> Date("1997-04-17", -5)
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217 <Date 1997-04-17.00:00:00>
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218 >>> Date("01-25", -5)
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219 <Date 2000-01-25.00:00:00>
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220 >>> Date("08-13.22:13", -5)
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221 <Date 2000-08-14.03:13:00>
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222 >>> Date("14:25", -5)
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223 <Date 2000-06-25.19:25:00>
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224
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225 The date format 'yyyymmddHHMMSS' (year, month, day, hour,
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226 minute, second) is the serialisation format returned by the serialise()
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227 method, and is accepted as an argument on instatiation.
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228
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229 The date class handles basic arithmetic::
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230
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231 >>> d1=Date('.')
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232 >>> d1
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233 <Date 2004-04-06.22:04:20.766830>
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234 >>> d2=Date('2003-07-01')
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235 >>> d2
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236 <Date 2003-07-01.00:00:0.000000>
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237 >>> d1-d2
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238 <Interval + 280d 22:04:20>
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239 >>> i1=_
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240 >>> d2+i1
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241 <Date 2004-04-06.22:04:20.000000>
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242 >>> d1-i1
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243 <Date 2003-07-01.00:00:0.000000>
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244 '''
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245
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246 def __init__(self, spec='.', offset=0, add_granularity=0, translator=i18n):
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247 """Construct a date given a specification and a time zone offset.
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248
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249 'spec'
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250 is a full date or a partial form, with an optional added or
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251 subtracted interval. Or a date 9-tuple.
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252 'offset'
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253 is the local time zone offset from GMT in hours.
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254 'translator'
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255 is i18n module or one of gettext translation classes.
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256 It must have attributes 'gettext' and 'ngettext',
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257 serving as translation functions.
25
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258 """
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259 self.setTranslator(translator)
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260 if type(spec) == type(''):
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261 self.set(spec, offset=offset, add_granularity=add_granularity)
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262 return
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263 elif isinstance(spec, datetime.datetime):
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264 # Python 2.3+ datetime object
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265 y,m,d,H,M,S,x,x,x = spec.timetuple()
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266 S += spec.microsecond/1000000.
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267 spec = (y,m,d,H,M,S,x,x,x)
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268 elif hasattr(spec, 'tuple'):
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269 spec = spec.tuple()
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270 elif isinstance(spec, Date):
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271 spec = spec.get_tuple()
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272 try:
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273 y,m,d,H,M,S,x,x,x = spec
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274 frac = S - int(S)
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275 self.year, self.month, self.day, self.hour, self.minute, \
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276 self.second = _local_to_utc(y, m, d, H, M, S, offset)
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277 # we lost the fractional part
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278 self.second = self.second + frac
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279 if str(self.second) == '60.0': self.second = 59.9
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diff changeset
280 except:
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281 raise ValueError, 'Unknown spec %r' % (spec,)
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282
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283 def set(self, spec, offset=0, date_re=date_re,
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284 serialised_re=serialised_date_re, add_granularity=0):
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285 ''' set the date to the value in spec
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286 '''
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diff changeset
287
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288 m = serialised_re.match(spec)
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289 if m is not None:
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290 # we're serialised - easy!
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291 g = m.groups()
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292 (self.year, self.month, self.day, self.hour, self.minute) = \
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diff changeset
293 map(int, g[:5])
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294 self.second = float(g[5])
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295 return
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296
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297 # not serialised data, try usual format
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298 m = date_re.match(spec)
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diff changeset
299 if m is None:
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300 raise ValueError, self._('Not a date spec: '
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diff changeset
301 '"yyyy-mm-dd", "mm-dd", "HH:MM", "HH:MM:SS" or '
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diff changeset
302 '"yyyy-mm-dd.HH:MM:SS.SSS"')
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diff changeset
303
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diff changeset
304 info = m.groupdict()
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diff changeset
305
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diff changeset
306 if add_granularity:
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diff changeset
307 _add_granularity(info, 'SMHdmyab')
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diff changeset
308
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309 # get the current date as our default
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diff changeset
310 dt = datetime.datetime.utcnow()
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diff changeset
311 y,m,d,H,M,S,x,x,x = dt.timetuple()
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diff changeset
312 S += dt.microsecond/1000000.
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diff changeset
313
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314 # whether we need to convert to UTC
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315 adjust = False
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diff changeset
316
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diff changeset
317 if info['y'] is not None or info['a'] is not None:
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318 if info['y'] is not None:
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319 y = int(info['y'])
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diff changeset
320 m,d = (1,1)
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diff changeset
321 if info['m'] is not None:
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diff changeset
322 m = int(info['m'])
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diff changeset
323 if info['d'] is not None:
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diff changeset
324 d = int(info['d'])
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diff changeset
325 if info['a'] is not None:
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diff changeset
326 m = int(info['a'])
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diff changeset
327 d = int(info['b'])
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diff changeset
328 H = 0
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diff changeset
329 M = S = 0
3619
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diff changeset
330 adjust = True
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diff changeset
331
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diff changeset
332 # override hour, minute, second parts
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diff changeset
333 if info['H'] is not None and info['M'] is not None:
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diff changeset
334 H = int(info['H'])
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diff changeset
335 M = int(info['M'])
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diff changeset
336 S = 0
2100
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diff changeset
337 if info['S'] is not None:
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338 S = float(info['S'])
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diff changeset
339 adjust = True
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diff changeset
340
2339
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Alexander Smishlajev <a1s@users.sourceforge.net>
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diff changeset
341
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diff changeset
342 # now handle the adjustment of hour
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Richard Jones <richard@users.sourceforge.net>
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diff changeset
343 frac = S - int(S)
3822
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Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
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diff changeset
344 dt = datetime.datetime(y,m,d,H,M,int(S), int(frac * 1000000.))
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diff changeset
345 if add_granularity:
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diff changeset
346 dt = dt - datetime.timedelta(seconds=1)
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Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
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diff changeset
347 y, m, d, H, M, S, x, x, x = dt.timetuple()
3619
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diff changeset
348 if adjust:
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diff changeset
349 y, m, d, H, M, S = _local_to_utc(y, m, d, H, M, S, offset)
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diff changeset
350 self.year, self.month, self.day, self.hour, self.minute, \
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diff changeset
351 self.second = y, m, d, H, M, S
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diff changeset
352 # we lost the fractional part along the way
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diff changeset
353 self.second += dt.microsecond/1000000.
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diff changeset
354
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diff changeset
355 if info.get('o', None):
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diff changeset
356 try:
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diff changeset
357 self.applyInterval(Interval(info['o'], allowdate=0))
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diff changeset
358 except ValueError:
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diff changeset
359 raise ValueError, self._('%r not a date / time spec '
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diff changeset
360 '"yyyy-mm-dd", "mm-dd", "HH:MM", "HH:MM:SS" or '
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diff changeset
361 '"yyyy-mm-dd.HH:MM:SS.SSS"')%(spec,)
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diff changeset
362
861
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diff changeset
363 def addInterval(self, interval):
68cef2bb929d fixed the date module so that Date(". - 2d") works
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diff changeset
364 ''' Add the interval to this date, returning the date tuple
25
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parents:
diff changeset
365 '''
640
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diff changeset
366 # do the basic calc
861
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parents: 720
diff changeset
367 sign = interval.sign
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parents: 720
diff changeset
368 year = self.year + sign * interval.year
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parents: 720
diff changeset
369 month = self.month + sign * interval.month
68cef2bb929d fixed the date module so that Date(". - 2d") works
Richard Jones <richard@users.sourceforge.net>
parents: 720
diff changeset
370 day = self.day + sign * interval.day
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Richard Jones <richard@users.sourceforge.net>
parents: 720
diff changeset
371 hour = self.hour + sign * interval.hour
68cef2bb929d fixed the date module so that Date(". - 2d") works
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parents: 720
diff changeset
372 minute = self.minute + sign * interval.minute
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diff changeset
373 # Intervals work on whole seconds
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374 second = int(self.second) + sign * interval.second
640
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diff changeset
375
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Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
376 # now cope with under- and over-flow
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parents: 585
diff changeset
377 # first do the time
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Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
378 while (second < 0 or second > 59 or minute < 0 or minute > 59 or
1941
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Richard Jones <richard@users.sourceforge.net>
parents: 1930
diff changeset
379 hour < 0 or hour > 23):
640
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Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
380 if second < 0: minute -= 1; second += 60
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Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
381 elif second > 59: minute += 1; second -= 60
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
382 if minute < 0: hour -= 1; minute += 60
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
383 elif minute > 59: hour += 1; minute -= 60
641
cfa460943d4d Oops, there's 24 hours in a day...
Richard Jones <richard@users.sourceforge.net>
parents: 640
diff changeset
384 if hour < 0: day -= 1; hour += 24
1941
bcc65c5b86e6 fixed date arithmetic to not allow day-of-month == 0 [SF#853306]
Richard Jones <richard@users.sourceforge.net>
parents: 1930
diff changeset
385 elif hour > 23: day += 1; hour -= 24
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
386
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
387 # fix up the month so we're within range
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
388 while month < 1 or month > 12:
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
389 if month < 1: year -= 1; month += 12
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
390 if month > 12: year += 1; month -= 12
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
391
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
392 # now do the days, now that we know what month we're in
1941
bcc65c5b86e6 fixed date arithmetic to not allow day-of-month == 0 [SF#853306]
Richard Jones <richard@users.sourceforge.net>
parents: 1930
diff changeset
393 def get_mdays(year, month):
1885
deba54ed724f Date arithmetic fixes.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1600
diff changeset
394 if month == 2 and calendar.isleap(year): return 29
deba54ed724f Date arithmetic fixes.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1600
diff changeset
395 else: return calendar.mdays[month]
1941
bcc65c5b86e6 fixed date arithmetic to not allow day-of-month == 0 [SF#853306]
Richard Jones <richard@users.sourceforge.net>
parents: 1930
diff changeset
396
bcc65c5b86e6 fixed date arithmetic to not allow day-of-month == 0 [SF#853306]
Richard Jones <richard@users.sourceforge.net>
parents: 1930
diff changeset
397 while month < 1 or month > 12 or day < 1 or day > get_mdays(year,month):
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
398 # now to day under/over
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
399 if day < 1:
1885
deba54ed724f Date arithmetic fixes.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1600
diff changeset
400 # When going backwards, decrement month, then increment days
deba54ed724f Date arithmetic fixes.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1600
diff changeset
401 month -= 1
deba54ed724f Date arithmetic fixes.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1600
diff changeset
402 day += get_mdays(year,month)
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
403 elif day > get_mdays(year,month):
1885
deba54ed724f Date arithmetic fixes.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1600
diff changeset
404 # When going forwards, decrement days, then increment month
deba54ed724f Date arithmetic fixes.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1600
diff changeset
405 day -= get_mdays(year,month)
deba54ed724f Date arithmetic fixes.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1600
diff changeset
406 month += 1
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
407
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
408 # possibly fix up the month so we're within range
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
409 while month < 1 or month > 12:
1885
deba54ed724f Date arithmetic fixes.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1600
diff changeset
410 if month < 1: year -= 1; month += 12 ; day += 31
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
411 if month > 12: year += 1; month -= 12
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
412
861
68cef2bb929d fixed the date module so that Date(". - 2d") works
Richard Jones <richard@users.sourceforge.net>
parents: 720
diff changeset
413 return (year, month, day, hour, minute, second, 0, 0, 0)
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
414
1894
41ad8b781232 Date - Date works again.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1885
diff changeset
415 def differenceDate(self, other):
41ad8b781232 Date - Date works again.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1885
diff changeset
416 "Return the difference between this date and another date"
2189
d39068bc6ef9 implement differenceDate ;)
Richard Jones <richard@users.sourceforge.net>
parents: 2188
diff changeset
417 return self - other
1894
41ad8b781232 Date - Date works again.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1885
diff changeset
418
861
68cef2bb929d fixed the date module so that Date(". - 2d") works
Richard Jones <richard@users.sourceforge.net>
parents: 720
diff changeset
419 def applyInterval(self, interval):
68cef2bb929d fixed the date module so that Date(". - 2d") works
Richard Jones <richard@users.sourceforge.net>
parents: 720
diff changeset
420 ''' Apply the interval to this date
68cef2bb929d fixed the date module so that Date(". - 2d") works
Richard Jones <richard@users.sourceforge.net>
parents: 720
diff changeset
421 '''
68cef2bb929d fixed the date module so that Date(". - 2d") works
Richard Jones <richard@users.sourceforge.net>
parents: 720
diff changeset
422 self.year, self.month, self.day, self.hour, self.minute, \
68cef2bb929d fixed the date module so that Date(". - 2d") works
Richard Jones <richard@users.sourceforge.net>
parents: 720
diff changeset
423 self.second, x, x, x = self.addInterval(interval)
68cef2bb929d fixed the date module so that Date(". - 2d") works
Richard Jones <richard@users.sourceforge.net>
parents: 720
diff changeset
424
68cef2bb929d fixed the date module so that Date(". - 2d") works
Richard Jones <richard@users.sourceforge.net>
parents: 720
diff changeset
425 def __add__(self, interval):
68cef2bb929d fixed the date module so that Date(". - 2d") works
Richard Jones <richard@users.sourceforge.net>
parents: 720
diff changeset
426 """Add an interval to this date to produce another date.
68cef2bb929d fixed the date module so that Date(". - 2d") works
Richard Jones <richard@users.sourceforge.net>
parents: 720
diff changeset
427 """
2388
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
428 return Date(self.addInterval(interval), translator=self.translator)
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
429
1103
db787cef1385 handled some XXXs
Richard Jones <richard@users.sourceforge.net>
parents: 1094
diff changeset
430 # deviates from spec to allow subtraction of dates as well
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
431 def __sub__(self, other):
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
432 """ Subtract:
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
433 1. an interval from this date to produce another date.
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
434 2. a date from this date to produce an interval.
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
435 """
641
cfa460943d4d Oops, there's 24 hours in a day...
Richard Jones <richard@users.sourceforge.net>
parents: 640
diff changeset
436 if isinstance(other, Interval):
1094
854d45f8b745 fixes to tests and Interval unmarshalling
Richard Jones <richard@users.sourceforge.net>
parents: 1090
diff changeset
437 other = Interval(other.get_tuple())
854d45f8b745 fixes to tests and Interval unmarshalling
Richard Jones <richard@users.sourceforge.net>
parents: 1090
diff changeset
438 other.sign *= -1
641
cfa460943d4d Oops, there's 24 hours in a day...
Richard Jones <richard@users.sourceforge.net>
parents: 640
diff changeset
439 return self.__add__(other)
cfa460943d4d Oops, there's 24 hours in a day...
Richard Jones <richard@users.sourceforge.net>
parents: 640
diff changeset
440
cfa460943d4d Oops, there's 24 hours in a day...
Richard Jones <richard@users.sourceforge.net>
parents: 640
diff changeset
441 assert isinstance(other, Date), 'May only subtract Dates or Intervals'
cfa460943d4d Oops, there's 24 hours in a day...
Richard Jones <richard@users.sourceforge.net>
parents: 640
diff changeset
442
1894
41ad8b781232 Date - Date works again.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1885
diff changeset
443 return self.dateDelta(other)
41ad8b781232 Date - Date works again.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1885
diff changeset
444
41ad8b781232 Date - Date works again.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1885
diff changeset
445 def dateDelta(self, other):
41ad8b781232 Date - Date works again.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1885
diff changeset
446 """ Produce an Interval of the difference between this date
41ad8b781232 Date - Date works again.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1885
diff changeset
447 and another date. Only returns days:hours:minutes:seconds.
41ad8b781232 Date - Date works again.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1885
diff changeset
448 """
41ad8b781232 Date - Date works again.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1885
diff changeset
449 # Returning intervals larger than a day is almost
41ad8b781232 Date - Date works again.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1885
diff changeset
450 # impossible - months, years, weeks, are all so imprecise.
641
cfa460943d4d Oops, there's 24 hours in a day...
Richard Jones <richard@users.sourceforge.net>
parents: 640
diff changeset
451 a = calendar.timegm((self.year, self.month, self.day, self.hour,
cfa460943d4d Oops, there's 24 hours in a day...
Richard Jones <richard@users.sourceforge.net>
parents: 640
diff changeset
452 self.minute, self.second, 0, 0, 0))
cfa460943d4d Oops, there's 24 hours in a day...
Richard Jones <richard@users.sourceforge.net>
parents: 640
diff changeset
453 b = calendar.timegm((other.year, other.month, other.day,
cfa460943d4d Oops, there's 24 hours in a day...
Richard Jones <richard@users.sourceforge.net>
parents: 640
diff changeset
454 other.hour, other.minute, other.second, 0, 0, 0))
2100
62ed6505cbec MySQL migration of old backend database to new, typed database complete.
Richard Jones <richard@users.sourceforge.net>
parents: 2098
diff changeset
455 # intervals work in whole seconds
62ed6505cbec MySQL migration of old backend database to new, typed database complete.
Richard Jones <richard@users.sourceforge.net>
parents: 2098
diff changeset
456 diff = int(a - b)
1894
41ad8b781232 Date - Date works again.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1885
diff changeset
457 if diff > 0:
641
cfa460943d4d Oops, there's 24 hours in a day...
Richard Jones <richard@users.sourceforge.net>
parents: 640
diff changeset
458 sign = 1
cfa460943d4d Oops, there's 24 hours in a day...
Richard Jones <richard@users.sourceforge.net>
parents: 640
diff changeset
459 else:
cfa460943d4d Oops, there's 24 hours in a day...
Richard Jones <richard@users.sourceforge.net>
parents: 640
diff changeset
460 sign = -1
1894
41ad8b781232 Date - Date works again.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1885
diff changeset
461 diff = -diff
641
cfa460943d4d Oops, there's 24 hours in a day...
Richard Jones <richard@users.sourceforge.net>
parents: 640
diff changeset
462 S = diff%60
cfa460943d4d Oops, there's 24 hours in a day...
Richard Jones <richard@users.sourceforge.net>
parents: 640
diff changeset
463 M = (diff/60)%60
1894
41ad8b781232 Date - Date works again.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1885
diff changeset
464 H = (diff/(60*60))%24
41ad8b781232 Date - Date works again.
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 1885
diff changeset
465 d = diff/(24*60*60)
2388
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
466 return Interval((0, 0, d, H, M, S), sign=sign,
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
467 translator=self.translator)
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
468
2102
666402433998 Fix some tests.
Richard Jones <richard@users.sourceforge.net>
parents: 2100
diff changeset
469 def __cmp__(self, other, int_seconds=0):
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
470 """Compare this date to another date."""
543
22e0edf7da6e lots of date/interval related changes: more relaxed date format for input
Richard Jones <richard@users.sourceforge.net>
parents: 501
diff changeset
471 if other is None:
22e0edf7da6e lots of date/interval related changes: more relaxed date format for input
Richard Jones <richard@users.sourceforge.net>
parents: 501
diff changeset
472 return 1
2102
666402433998 Fix some tests.
Richard Jones <richard@users.sourceforge.net>
parents: 2100
diff changeset
473 for attr in ('year', 'month', 'day', 'hour', 'minute'):
890
a568596dbea7 Unit tests and a few fixes.
Richard Jones <richard@users.sourceforge.net>
parents: 861
diff changeset
474 if not hasattr(other, attr):
a568596dbea7 Unit tests and a few fixes.
Richard Jones <richard@users.sourceforge.net>
parents: 861
diff changeset
475 return 1
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
476 r = cmp(getattr(self, attr), getattr(other, attr))
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
477 if r: return r
2102
666402433998 Fix some tests.
Richard Jones <richard@users.sourceforge.net>
parents: 2100
diff changeset
478 if not hasattr(other, 'second'):
666402433998 Fix some tests.
Richard Jones <richard@users.sourceforge.net>
parents: 2100
diff changeset
479 return 1
666402433998 Fix some tests.
Richard Jones <richard@users.sourceforge.net>
parents: 2100
diff changeset
480 if int_seconds:
666402433998 Fix some tests.
Richard Jones <richard@users.sourceforge.net>
parents: 2100
diff changeset
481 return cmp(int(self.second), int(other.second))
666402433998 Fix some tests.
Richard Jones <richard@users.sourceforge.net>
parents: 2100
diff changeset
482 return cmp(self.second, other.second)
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
483
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
484 def __str__(self):
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
485 """Return this date as a string in the yyyy-mm-dd.hh:mm:ss format."""
2098
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2005
diff changeset
486 return self.formal()
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2005
diff changeset
487
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2005
diff changeset
488 def formal(self, sep='.', sec='%02d'):
3822
2a60b68985db Fix arbitrary limit on dates.
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 3798
diff changeset
489 f = '%%04d-%%02d-%%02d%s%%02d:%%02d:%s'%(sep, sec)
2098
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2005
diff changeset
490 return f%(self.year, self.month, self.day, self.hour, self.minute,
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2005
diff changeset
491 self.second)
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
492
1272
cae50587fb96 expose the Date.pretty method to templating
Richard Jones <richard@users.sourceforge.net>
parents: 1268
diff changeset
493 def pretty(self, format='%d %B %Y'):
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
494 ''' print up the date date using a pretty format...
1272
cae50587fb96 expose the Date.pretty method to templating
Richard Jones <richard@users.sourceforge.net>
parents: 1268
diff changeset
495
cae50587fb96 expose the Date.pretty method to templating
Richard Jones <richard@users.sourceforge.net>
parents: 1268
diff changeset
496 Note that if the day is zero, and the day appears first in the
cae50587fb96 expose the Date.pretty method to templating
Richard Jones <richard@users.sourceforge.net>
parents: 1268
diff changeset
497 format, then the day number will be removed from output.
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
498 '''
3822
2a60b68985db Fix arbitrary limit on dates.
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 3798
diff changeset
499 dt = datetime.datetime(self.year, self.month, self.day, self.hour,
2a60b68985db Fix arbitrary limit on dates.
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 3798
diff changeset
500 self.minute, int(self.second),
3823
7cda5b4daa91 fix a deprecation warning if usecs passed to datetime constructor is a float.
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 3822
diff changeset
501 int ((self.second - int (self.second)) * 1000000.))
3822
2a60b68985db Fix arbitrary limit on dates.
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 3798
diff changeset
502 str = dt.strftime(format)
3028
de242e68c69b fix py2.4 strftime() API change bug [SF#1087746]
Richard Jones <richard@users.sourceforge.net>
parents: 2981
diff changeset
503
1272
cae50587fb96 expose the Date.pretty method to templating
Richard Jones <richard@users.sourceforge.net>
parents: 1268
diff changeset
504 # handle zero day by removing it
cae50587fb96 expose the Date.pretty method to templating
Richard Jones <richard@users.sourceforge.net>
parents: 1268
diff changeset
505 if format.startswith('%d') and str[0] == '0':
cae50587fb96 expose the Date.pretty method to templating
Richard Jones <richard@users.sourceforge.net>
parents: 1268
diff changeset
506 return ' ' + str[1:]
585
c08fb4921eda %e is a UNIXism and not documented for Python
Jürgen Hermann <jhermann@users.sourceforge.net>
parents: 543
diff changeset
507 return str
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
508
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
509 def __repr__(self):
3612
afda59d5d546 prevent generation of new single-digit seconds dates [SF#1429390]
Richard Jones <richard@users.sourceforge.net>
parents: 3611
diff changeset
510 return '<Date %s>'%self.formal(sec='%06.3f')
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
511
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
512 def local(self, offset):
1318
46a1951fdb14 fix Date.local()
Richard Jones <richard@users.sourceforge.net>
parents: 1272
diff changeset
513 """ Return this date as yyyy-mm-dd.hh:mm:ss in a local time zone.
46a1951fdb14 fix Date.local()
Richard Jones <richard@users.sourceforge.net>
parents: 1272
diff changeset
514 """
3619
df7bff6f8a2f full timezone support (based on patch [SF#1465296])
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 3612
diff changeset
515 y, m, d, H, M, S = _utc_to_local(self.year, self.month, self.day,
df7bff6f8a2f full timezone support (based on patch [SF#1465296])
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 3612
diff changeset
516 self.hour, self.minute, self.second, offset)
df7bff6f8a2f full timezone support (based on patch [SF#1465296])
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 3612
diff changeset
517 return Date((y, m, d, H, M, S, 0, 0, 0), translator=self.translator)
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
518
2359
8611bf29baec deepcopy was broken for date stuff
Richard Jones <richard@users.sourceforge.net>
parents: 2339
diff changeset
519 def __deepcopy__(self, memo):
8611bf29baec deepcopy was broken for date stuff
Richard Jones <richard@users.sourceforge.net>
parents: 2339
diff changeset
520 return Date((self.year, self.month, self.day, self.hour,
2388
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
521 self.minute, self.second, 0, 0, 0), translator=self.translator)
2359
8611bf29baec deepcopy was broken for date stuff
Richard Jones <richard@users.sourceforge.net>
parents: 2339
diff changeset
522
47
34491d9b91a0 Storing only marshallable data in the db - no nasty pickled class references.
Richard Jones <richard@users.sourceforge.net>
parents: 26
diff changeset
523 def get_tuple(self):
34491d9b91a0 Storing only marshallable data in the db - no nasty pickled class references.
Richard Jones <richard@users.sourceforge.net>
parents: 26
diff changeset
524 return (self.year, self.month, self.day, self.hour, self.minute,
34491d9b91a0 Storing only marshallable data in the db - no nasty pickled class references.
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parents: 26
diff changeset
525 self.second, 0, 0, 0)
25
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parents:
diff changeset
526
964
832d1209aaa2 Preparing to turn back on link/unlink journal events.
Richard Jones <richard@users.sourceforge.net>
parents: 890
diff changeset
527 def serialise(self):
3822
2a60b68985db Fix arbitrary limit on dates.
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 3798
diff changeset
528 return '%04d%02d%02d%02d%02d%06.3f'%(self.year, self.month,
964
832d1209aaa2 Preparing to turn back on link/unlink journal events.
Richard Jones <richard@users.sourceforge.net>
parents: 890
diff changeset
529 self.day, self.hour, self.minute, self.second)
832d1209aaa2 Preparing to turn back on link/unlink journal events.
Richard Jones <richard@users.sourceforge.net>
parents: 890
diff changeset
530
1946
c538a64b94a7 Refactored CGI file serving so that FileClass contents are...
Richard Jones <richard@users.sourceforge.net>
parents: 1941
diff changeset
531 def timestamp(self):
c538a64b94a7 Refactored CGI file serving so that FileClass contents are...
Richard Jones <richard@users.sourceforge.net>
parents: 1941
diff changeset
532 ''' return a UNIX timestamp for this date '''
2098
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2005
diff changeset
533 frac = self.second - int(self.second)
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2005
diff changeset
534 ts = calendar.timegm((self.year, self.month, self.day, self.hour,
1946
c538a64b94a7 Refactored CGI file serving so that FileClass contents are...
Richard Jones <richard@users.sourceforge.net>
parents: 1941
diff changeset
535 self.minute, self.second, 0, 0, 0))
2098
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2005
diff changeset
536 # we lose the fractional part
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2005
diff changeset
537 return ts + frac
1946
c538a64b94a7 Refactored CGI file serving so that FileClass contents are...
Richard Jones <richard@users.sourceforge.net>
parents: 1941
diff changeset
538
2388
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
539 def setTranslator(self, translator):
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
540 """Replace the translation engine
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
541
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
542 'translator'
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
543 is i18n module or one of gettext translation classes.
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
544 It must have attributes 'gettext' and 'ngettext',
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
545 serving as translation functions.
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
546 """
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
547 self.translator = translator
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
548 self._ = translator.gettext
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
549 self.ngettext = translator.ngettext
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
550
3825
f5bb1ad47268 Add a class-method as a constructor of a Date object from a timestamp.
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 3823
diff changeset
551 def fromtimestamp(cls, ts):
f5bb1ad47268 Add a class-method as a constructor of a Date object from a timestamp.
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 3823
diff changeset
552 """Create a date object from a timestamp.
f5bb1ad47268 Add a class-method as a constructor of a Date object from a timestamp.
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 3823
diff changeset
553
f5bb1ad47268 Add a class-method as a constructor of a Date object from a timestamp.
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 3823
diff changeset
554 The timestamp may be outside the gmtime year-range of
f5bb1ad47268 Add a class-method as a constructor of a Date object from a timestamp.
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 3823
diff changeset
555 1902-2038.
f5bb1ad47268 Add a class-method as a constructor of a Date object from a timestamp.
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 3823
diff changeset
556 """
f5bb1ad47268 Add a class-method as a constructor of a Date object from a timestamp.
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 3823
diff changeset
557 usec = int((ts - int(ts)) * 1000000.)
f5bb1ad47268 Add a class-method as a constructor of a Date object from a timestamp.
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 3823
diff changeset
558 delta = datetime.timedelta(seconds = int(ts), microseconds = usec)
f5bb1ad47268 Add a class-method as a constructor of a Date object from a timestamp.
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 3823
diff changeset
559 return cls(datetime.datetime(1970, 1, 1) + delta)
f5bb1ad47268 Add a class-method as a constructor of a Date object from a timestamp.
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 3823
diff changeset
560 fromtimestamp = classmethod(fromtimestamp)
f5bb1ad47268 Add a class-method as a constructor of a Date object from a timestamp.
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 3823
diff changeset
561
25
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parents:
diff changeset
562 class Interval:
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
563 '''
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
564 Date intervals are specified using the suffixes "y", "m", and "d". The
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
565 suffix "w" (for "week") means 7 days. Time intervals are specified in
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
566 hh:mm:ss format (the seconds may be omitted, but the hours and minutes
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
567 may not).
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
568
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
569 "3y" means three years
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
570 "2y 1m" means two years and one month
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
571 "1m 25d" means one month and 25 days
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
572 "2w 3d" means two weeks and three days
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
573 "1d 2:50" means one day, two hours, and 50 minutes
4cf1daf2f2eb More Grande Splite
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parents:
diff changeset
574 "14:00" means 14 hours
4cf1daf2f2eb More Grande Splite
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parents:
diff changeset
575 "0:04:33" means four minutes and 33 seconds
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parents:
diff changeset
576
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parents:
diff changeset
577 Example usage:
4cf1daf2f2eb More Grande Splite
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parents:
diff changeset
578 >>> Interval(" 3w 1 d 2:00")
1487
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
579 <Interval + 22d 2:00>
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
580 >>> Date(". + 2d") + Interval("- 3w")
25
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
581 <Date 2000-06-07.00:34:02>
1487
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
582 >>> Interval('1:59:59') + Interval('00:00:01')
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
583 <Interval + 2:00>
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
584 >>> Interval('2:00') + Interval('- 00:00:01')
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
585 <Interval + 1:59:59>
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
586 >>> Interval('1y')/2
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
587 <Interval + 6m>
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
588 >>> Interval('1:00')/2
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
589 <Interval + 0:30>
1537
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
590 >>> Interval('2003-03-18')
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
591 <Interval + [number of days between now and 2003-03-18]>
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
592 >>> Interval('-4d 2003-03-18')
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
593 <Interval + [number of days between now and 2003-03-14]>
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
594
1487
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
595 Interval arithmetic is handled in a couple of special ways, trying
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
596 to cater for the most common cases. Fundamentally, Intervals which
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
597 have both date and time parts will result in strange results in
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
598 arithmetic - because of the impossibility of handling day->month->year
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
599 over- and under-flows. Intervals may also be divided by some number.
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
600
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
601 Intervals are added to Dates in order of:
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
602 seconds, minutes, hours, years, months, days
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
603
1487
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
604 Calculations involving months (eg '+2m') have no effect on days - only
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
605 days (or over/underflow from hours/mins/secs) will do that, and
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
606 days-per-month and leap years are accounted for. Leap seconds are not.
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
607
964
832d1209aaa2 Preparing to turn back on link/unlink journal events.
Richard Jones <richard@users.sourceforge.net>
parents: 890
diff changeset
608 The interval format 'syyyymmddHHMMSS' (sign, year, month, day, hour,
832d1209aaa2 Preparing to turn back on link/unlink journal events.
Richard Jones <richard@users.sourceforge.net>
parents: 890
diff changeset
609 minute, second) is the serialisation format returned by the serialise()
832d1209aaa2 Preparing to turn back on link/unlink journal events.
Richard Jones <richard@users.sourceforge.net>
parents: 890
diff changeset
610 method, and is accepted as an argument on instatiation.
832d1209aaa2 Preparing to turn back on link/unlink journal events.
Richard Jones <richard@users.sourceforge.net>
parents: 890
diff changeset
611
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
612 TODO: more examples, showing the order of addition operation
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
613 '''
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
614 def __init__(self, spec, sign=1, allowdate=1, add_granularity=0,
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
615 translator=i18n
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
616 ):
25
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
617 """Construct an interval given a specification."""
2388
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
618 self.setTranslator(translator)
3349
9c65e32514aa types module delenda est
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 3231
diff changeset
619 if isinstance(spec, (int, float, long)):
2212
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
620 self.from_seconds(spec)
3349
9c65e32514aa types module delenda est
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents: 3231
diff changeset
621 elif isinstance(spec, basestring):
1597
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
622 self.set(spec, allowdate=allowdate, add_granularity=add_granularity)
2729
797725ec50c5 date.Interval() now accepts an Interval as a spec [SF#1041266]
Richard Jones <richard@users.sourceforge.net>
parents: 2702
diff changeset
623 elif isinstance(spec, Interval):
797725ec50c5 date.Interval() now accepts an Interval as a spec [SF#1041266]
Richard Jones <richard@users.sourceforge.net>
parents: 2702
diff changeset
624 (self.sign, self.year, self.month, self.day, self.hour,
797725ec50c5 date.Interval() now accepts an Interval as a spec [SF#1041266]
Richard Jones <richard@users.sourceforge.net>
parents: 2702
diff changeset
625 self.minute, self.second) = spec.get_tuple()
25
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
626 else:
1094
854d45f8b745 fixes to tests and Interval unmarshalling
Richard Jones <richard@users.sourceforge.net>
parents: 1090
diff changeset
627 if len(spec) == 7:
854d45f8b745 fixes to tests and Interval unmarshalling
Richard Jones <richard@users.sourceforge.net>
parents: 1090
diff changeset
628 self.sign, self.year, self.month, self.day, self.hour, \
854d45f8b745 fixes to tests and Interval unmarshalling
Richard Jones <richard@users.sourceforge.net>
parents: 1090
diff changeset
629 self.minute, self.second = spec
2100
62ed6505cbec MySQL migration of old backend database to new, typed database complete.
Richard Jones <richard@users.sourceforge.net>
parents: 2098
diff changeset
630 self.second = int(self.second)
1094
854d45f8b745 fixes to tests and Interval unmarshalling
Richard Jones <richard@users.sourceforge.net>
parents: 1090
diff changeset
631 else:
854d45f8b745 fixes to tests and Interval unmarshalling
Richard Jones <richard@users.sourceforge.net>
parents: 1090
diff changeset
632 # old, buggy spec form
854d45f8b745 fixes to tests and Interval unmarshalling
Richard Jones <richard@users.sourceforge.net>
parents: 1090
diff changeset
633 self.sign = sign
854d45f8b745 fixes to tests and Interval unmarshalling
Richard Jones <richard@users.sourceforge.net>
parents: 1090
diff changeset
634 self.year, self.month, self.day, self.hour, self.minute, \
854d45f8b745 fixes to tests and Interval unmarshalling
Richard Jones <richard@users.sourceforge.net>
parents: 1090
diff changeset
635 self.second = spec
2100
62ed6505cbec MySQL migration of old backend database to new, typed database complete.
Richard Jones <richard@users.sourceforge.net>
parents: 2098
diff changeset
636 self.second = int(self.second)
25
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parents:
diff changeset
637
2359
8611bf29baec deepcopy was broken for date stuff
Richard Jones <richard@users.sourceforge.net>
parents: 2339
diff changeset
638 def __deepcopy__(self, memo):
8611bf29baec deepcopy was broken for date stuff
Richard Jones <richard@users.sourceforge.net>
parents: 2339
diff changeset
639 return Interval((self.sign, self.year, self.month, self.day,
2388
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
640 self.hour, self.minute, self.second), translator=self.translator)
2359
8611bf29baec deepcopy was broken for date stuff
Richard Jones <richard@users.sourceforge.net>
parents: 2339
diff changeset
641
1537
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
642 def set(self, spec, allowdate=1, interval_re=re.compile('''
1535
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
643 \s*(?P<s>[-+])? # + or -
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
644 \s*((?P<y>\d+\s*)y)? # year
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
645 \s*((?P<m>\d+\s*)m)? # month
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
646 \s*((?P<w>\d+\s*)w)? # week
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
647 \s*((?P<d>\d+\s*)d)? # day
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
648 \s*(((?P<H>\d+):(?P<M>\d+))?(:(?P<S>\d+))?)? # time
1537
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
649 \s*(?P<D>
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
650 (\d\d\d\d[/-])?(\d\d?)?[/-](\d\d?)? # [yyyy-]mm-dd
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
651 \.? # .
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
652 (\d?\d:\d\d)?(:\d\d)? # hh:mm:ss
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
653 )?''', re.VERBOSE), serialised_re=re.compile('''
1535
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
654 (?P<s>[+-])?1?(?P<y>([ ]{3}\d|\d{4}))(?P<m>\d{2})(?P<d>\d{2})
1597
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
655 (?P<H>\d{2})(?P<M>\d{2})(?P<S>\d{2})''', re.VERBOSE),
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
656 add_granularity=0):
1535
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
657 ''' set the date to the value in spec
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
658 '''
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
659 self.year = self.month = self.week = self.day = self.hour = \
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
660 self.minute = self.second = 0
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
661 self.sign = 1
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
662 m = serialised_re.match(spec)
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
663 if not m:
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
664 m = interval_re.match(spec)
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
665 if not m:
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
666 raise ValueError, self._('Not an interval spec:'
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
667 ' [+-] [#y] [#m] [#w] [#d] [[[H]H:MM]:SS] [date spec]')
1542
3faabaeab6aa fixed date unserialisation for *dbm backends
Richard Jones <richard@users.sourceforge.net>
parents: 1537
diff changeset
668 else:
3faabaeab6aa fixed date unserialisation for *dbm backends
Richard Jones <richard@users.sourceforge.net>
parents: 1537
diff changeset
669 allowdate = 0
1535
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
670
1537
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
671 # pull out all the info specified
1535
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
672 info = m.groupdict()
1597
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
673 if add_granularity:
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
674 _add_granularity(info, 'SMHdwmy', (info['s']=='-' and -1 or 1))
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
675
1535
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
676 valid = 0
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
677 for group, attr in {'y':'year', 'm':'month', 'w':'week', 'd':'day',
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
678 'H':'hour', 'M':'minute', 'S':'second'}.items():
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
679 if info.get(group, None) is not None:
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
680 valid = 1
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
681 setattr(self, attr, int(info[group]))
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
682
1537
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
683 # make sure it's valid
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
684 if not valid and not info['D']:
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
685 raise ValueError, self._('Not an interval spec:'
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
686 ' [+-] [#y] [#m] [#w] [#d] [[[H]H:MM]:SS]')
1535
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
687
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
688 if self.week:
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
689 self.day = self.day + self.week*7
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
690
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
691 if info['s'] is not None:
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
692 self.sign = {'+':1, '-':-1}[info['s']]
26f29449c494 fixed detection of bad date specs [SF#691439]
Richard Jones <richard@users.sourceforge.net>
parents: 1509
diff changeset
693
1537
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
694 # use a date spec if one is given
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
695 if allowdate and info['D'] is not None:
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
696 now = Date('.')
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
697 date = Date(info['D'])
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
698 # if no time part was specified, nuke it in the "now" date
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
699 if not date.hour or date.minute or date.second:
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
700 now.hour = now.minute = now.second = 0
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
701 if date != now:
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
702 y = now - (date + self)
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
703 self.__init__(y.get_tuple())
0e36c9b23aa6 more lenient date input and addition Interval input support [SF#677764]
Richard Jones <richard@users.sourceforge.net>
parents: 1535
diff changeset
704
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
705 def __cmp__(self, other):
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
706 """Compare this interval to another interval."""
543
22e0edf7da6e lots of date/interval related changes: more relaxed date format for input
Richard Jones <richard@users.sourceforge.net>
parents: 501
diff changeset
707 if other is None:
1505
c101d2ff5a20 fix to [SF#691071], really this time
Richard Jones <richard@users.sourceforge.net>
parents: 1499
diff changeset
708 # we are always larger than None
543
22e0edf7da6e lots of date/interval related changes: more relaxed date format for input
Richard Jones <richard@users.sourceforge.net>
parents: 501
diff changeset
709 return 1
1494
66cc5c2819dd oops, Interval sorting ignored sign
Richard Jones <richard@users.sourceforge.net>
parents: 1487
diff changeset
710 for attr in 'sign year month day hour minute second'.split():
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
711 r = cmp(getattr(self, attr), getattr(other, attr))
1494
66cc5c2819dd oops, Interval sorting ignored sign
Richard Jones <richard@users.sourceforge.net>
parents: 1487
diff changeset
712 if r:
66cc5c2819dd oops, Interval sorting ignored sign
Richard Jones <richard@users.sourceforge.net>
parents: 1487
diff changeset
713 return r
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
714 return 0
964
832d1209aaa2 Preparing to turn back on link/unlink journal events.
Richard Jones <richard@users.sourceforge.net>
parents: 890
diff changeset
715
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
716 def __str__(self):
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
717 """Return this interval as a string."""
1487
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
718 l = []
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
719 if self.year: l.append('%sy'%self.year)
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
720 if self.month: l.append('%sm'%self.month)
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
721 if self.day: l.append('%sd'%self.day)
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
722 if self.second:
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
723 l.append('%d:%02d:%02d'%(self.hour, self.minute, self.second))
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
724 elif self.hour or self.minute:
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
725 l.append('%d:%02d'%(self.hour, self.minute))
1487
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
726 if l:
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
727 l.insert(0, {1:'+', -1:'-'}[self.sign])
2212
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
728 else:
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
729 l.append('00:00')
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
730 return ' '.join(l)
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
731
1268
b34adc9bcaf2 implemented the missing Interval.__add__
Richard Jones <richard@users.sourceforge.net>
parents: 1266
diff changeset
732 def __add__(self, other):
b34adc9bcaf2 implemented the missing Interval.__add__
Richard Jones <richard@users.sourceforge.net>
parents: 1266
diff changeset
733 if isinstance(other, Date):
b34adc9bcaf2 implemented the missing Interval.__add__
Richard Jones <richard@users.sourceforge.net>
parents: 1266
diff changeset
734 # the other is a Date - produce a Date
2388
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
735 return Date(other.addInterval(self), translator=self.translator)
1268
b34adc9bcaf2 implemented the missing Interval.__add__
Richard Jones <richard@users.sourceforge.net>
parents: 1266
diff changeset
736 elif isinstance(other, Interval):
b34adc9bcaf2 implemented the missing Interval.__add__
Richard Jones <richard@users.sourceforge.net>
parents: 1266
diff changeset
737 # add the other Interval to this one
b34adc9bcaf2 implemented the missing Interval.__add__
Richard Jones <richard@users.sourceforge.net>
parents: 1266
diff changeset
738 a = self.get_tuple()
3702
06d7816976bc python 2.6 compatibility
Richard Jones <richard@users.sourceforge.net>
parents: 3619
diff changeset
739 asgn = a[0]
1268
b34adc9bcaf2 implemented the missing Interval.__add__
Richard Jones <richard@users.sourceforge.net>
parents: 1266
diff changeset
740 b = other.get_tuple()
3702
06d7816976bc python 2.6 compatibility
Richard Jones <richard@users.sourceforge.net>
parents: 3619
diff changeset
741 bsgn = b[0]
06d7816976bc python 2.6 compatibility
Richard Jones <richard@users.sourceforge.net>
parents: 3619
diff changeset
742 i = [asgn*x + bsgn*y for x,y in zip(a[1:],b[1:])]
1487
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
743 i.insert(0, 1)
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
744 i = fixTimeOverflow(i)
2388
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
745 return Interval(i, translator=self.translator)
1487
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
746 # nope, no idea what to do with this other...
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
747 raise TypeError, "Can't add %r"%other
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
748
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
749 def __sub__(self, other):
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
750 if isinstance(other, Date):
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
751 # the other is a Date - produce a Date
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
752 interval = Interval(self.get_tuple())
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
753 interval.sign *= -1
2388
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
754 return Date(other.addInterval(interval),
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
755 translator=self.translator)
1487
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
756 elif isinstance(other, Interval):
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
757 # add the other Interval to this one
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
758 a = self.get_tuple()
3702
06d7816976bc python 2.6 compatibility
Richard Jones <richard@users.sourceforge.net>
parents: 3619
diff changeset
759 asgn = a[0]
1487
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
760 b = other.get_tuple()
3702
06d7816976bc python 2.6 compatibility
Richard Jones <richard@users.sourceforge.net>
parents: 3619
diff changeset
761 bsgn = b[0]
06d7816976bc python 2.6 compatibility
Richard Jones <richard@users.sourceforge.net>
parents: 3619
diff changeset
762 i = [asgn*x - bsgn*y for x,y in zip(a[1:],b[1:])]
1487
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
763 i.insert(0, 1)
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
764 i = fixTimeOverflow(i)
2388
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
765 return Interval(i, translator=self.translator)
1268
b34adc9bcaf2 implemented the missing Interval.__add__
Richard Jones <richard@users.sourceforge.net>
parents: 1266
diff changeset
766 # nope, no idea what to do with this other...
b34adc9bcaf2 implemented the missing Interval.__add__
Richard Jones <richard@users.sourceforge.net>
parents: 1266
diff changeset
767 raise TypeError, "Can't add %r"%other
b34adc9bcaf2 implemented the missing Interval.__add__
Richard Jones <richard@users.sourceforge.net>
parents: 1266
diff changeset
768
1487
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
769 def __div__(self, other):
1930
71056b09f2bf Add tests for Interval.pretty().
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents: 1894
diff changeset
770 """ Divide this interval by an int value.
1487
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
771
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
772 Can't divide years and months sensibly in the _same_
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
773 calculation as days/time, so raise an error in that situation.
1930
71056b09f2bf Add tests for Interval.pretty().
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents: 1894
diff changeset
774 """
1487
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
775 try:
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
776 other = float(other)
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
777 except TypeError:
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
778 raise ValueError, "Can only divide Intervals by numbers"
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
779
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
780 y, m, d, H, M, S = (self.year, self.month, self.day,
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
781 self.hour, self.minute, self.second)
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
782 if y or m:
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
783 if d or H or M or S:
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
784 raise ValueError, "Can't divide Interval with date and time"
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
785 months = self.year*12 + self.month
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
786 months *= self.sign
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
787
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
788 months = int(months/other)
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
789
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
790 sign = months<0 and -1 or 1
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
791 m = months%12
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
792 y = months / 12
2388
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
793 return Interval((sign, y, m, 0, 0, 0, 0),
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
794 translator=self.translator)
1487
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
795
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
796 else:
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
797 # handle a day/time division
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
798 seconds = S + M*60 + H*60*60 + d*60*60*24
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
799 seconds *= self.sign
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
800
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
801 seconds = int(seconds/other)
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
802
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
803 sign = seconds<0 and -1 or 1
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
804 seconds *= sign
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
805 S = seconds%60
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
806 seconds /= 60
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
807 M = seconds%60
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
808 seconds /= 60
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
809 H = seconds%24
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
810 d = seconds / 24
2388
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
811 return Interval((sign, 0, 0, d, H, M, S),
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
812 translator=self.translator)
1487
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
813
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
814 def __repr__(self):
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
815 return '<Interval %s>'%self.__str__()
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
816
487
2f4c37d28108 I18N'ification
Richard Jones <richard@users.sourceforge.net>
parents: 406
diff changeset
817 def pretty(self):
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
818 ''' print up the date date using one of these nice formats..
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
819 '''
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
820 _quarters = self.minute / 15
720
5e0a75bfdd90 reverting to dates for intervals > 2 months sucks
Richard Jones <richard@users.sourceforge.net>
parents: 641
diff changeset
821 if self.year:
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
822 s = self.ngettext("%(number)s year", "%(number)s years",
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
823 self.year) % {'number': self.year}
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
824 elif self.month or self.day > 28:
2416
Richard Jones <richard@users.sourceforge.net>
parents: 2402
diff changeset
825 _months = max(1, int(((self.month * 30) + self.day) / 30))
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
826 s = self.ngettext("%(number)s month", "%(number)s months",
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
827 _months) % {'number': _months}
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
828 elif self.day > 7:
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
829 _weeks = int(self.day / 7)
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
830 s = self.ngettext("%(number)s week", "%(number)s weeks",
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
831 _weeks) % {'number': _weeks}
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
832 elif self.day > 1:
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
833 # Note: singular form is not used
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
834 s = self.ngettext('%(number)s day', '%(number)s days',
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
835 self.day) % {'number': self.day}
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
836 elif self.day == 1 or self.hour > 12:
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
837 if self.sign > 0:
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
838 return self._('tomorrow')
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
839 else:
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
840 return self._('yesterday')
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
841 elif self.hour > 1:
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
842 # Note: singular form is not used
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
843 s = self.ngettext('%(number)s hour', '%(number)s hours',
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
844 self.hour) % {'number': self.hour}
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
845 elif self.hour == 1:
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
846 if self.minute < 15:
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
847 s = self._('an hour')
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
848 elif _quarters == 2:
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
849 s = self._('1 1/2 hours')
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
850 else:
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
851 s = self.ngettext('1 %(number)s/4 hours',
2416
Richard Jones <richard@users.sourceforge.net>
parents: 2402
diff changeset
852 '1 %(number)s/4 hours', _quarters)%{'number': _quarters}
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
853 elif self.minute < 1:
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
854 if self.sign > 0:
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
855 return self._('in a moment')
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
856 else:
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
857 return self._('just now')
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
858 elif self.minute == 1:
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
859 # Note: used in expressions "in 1 minute" or "1 minute ago"
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
860 s = self._('1 minute')
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
861 elif self.minute < 15:
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
862 # Note: used in expressions "in 2 minutes" or "2 minutes ago"
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
863 s = self.ngettext('%(number)s minute', '%(number)s minutes',
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
864 self.minute) % {'number': self.minute}
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
865 elif _quarters == 2:
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
866 s = self._('1/2 an hour')
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
867 else:
2416
Richard Jones <richard@users.sourceforge.net>
parents: 2402
diff changeset
868 s = self.ngettext('%(number)s/4 hour', '%(number)s/4 hours',
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
869 _quarters) % {'number': _quarters}
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
870 # XXX this is internationally broken
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
871 if self.sign < 0:
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
872 s = self._('%s ago') % s
1413
4ae9d725bec4 make future intervals obvious too
Richard Jones <richard@users.sourceforge.net>
parents: 1412
diff changeset
873 else:
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
874 s = self._('in %s') % s
640
7dd13fd5d8ea fixed some problems in date calculations
Richard Jones <richard@users.sourceforge.net>
parents: 585
diff changeset
875 return s
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
876
47
34491d9b91a0 Storing only marshallable data in the db - no nasty pickled class references.
Richard Jones <richard@users.sourceforge.net>
parents: 26
diff changeset
877 def get_tuple(self):
964
832d1209aaa2 Preparing to turn back on link/unlink journal events.
Richard Jones <richard@users.sourceforge.net>
parents: 890
diff changeset
878 return (self.sign, self.year, self.month, self.day, self.hour,
832d1209aaa2 Preparing to turn back on link/unlink journal events.
Richard Jones <richard@users.sourceforge.net>
parents: 890
diff changeset
879 self.minute, self.second)
832d1209aaa2 Preparing to turn back on link/unlink journal events.
Richard Jones <richard@users.sourceforge.net>
parents: 890
diff changeset
880
832d1209aaa2 Preparing to turn back on link/unlink journal events.
Richard Jones <richard@users.sourceforge.net>
parents: 890
diff changeset
881 def serialise(self):
1261
85d71588a1cf fixed bug in Interval serialisation
Richard Jones <richard@users.sourceforge.net>
parents: 1192
diff changeset
882 sign = self.sign > 0 and '+' or '-'
85d71588a1cf fixed bug in Interval serialisation
Richard Jones <richard@users.sourceforge.net>
parents: 1192
diff changeset
883 return '%s%04d%02d%02d%02d%02d%02d'%(sign, self.year, self.month,
964
832d1209aaa2 Preparing to turn back on link/unlink journal events.
Richard Jones <richard@users.sourceforge.net>
parents: 890
diff changeset
884 self.day, self.hour, self.minute, self.second)
47
34491d9b91a0 Storing only marshallable data in the db - no nasty pickled class references.
Richard Jones <richard@users.sourceforge.net>
parents: 26
diff changeset
885
2212
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
886 def as_seconds(self):
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
887 '''Calculate the Interval as a number of seconds.
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
888
2212
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
889 Months are counted as 30 days, years as 365 days. Returns a Long
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
890 int.
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
891 '''
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
892 n = self.year * 365L
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
893 n = n + self.month * 30
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
894 n = n + self.day
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
895 n = n * 24
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
896 n = n + self.hour
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
897 n = n * 60
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
898 n = n + self.minute
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
899 n = n * 60
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
900 n = n + self.second
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
901 return n * self.sign
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
902
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
903 def from_seconds(self, val):
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
904 '''Figure my second, minute, hour and day values using a seconds
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
905 value.
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
906 '''
2981
ad04cb95e2b0 fix Interval.from_seconds() with float argument
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2729
diff changeset
907 val = int(val)
2212
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
908 if val < 0:
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
909 self.sign = -1
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
910 val = -val
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
911 else:
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
912 self.sign = 1
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
913 self.second = val % 60
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
914 val = val / 60
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
915 self.minute = val % 60
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
916 val = val / 60
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
917 self.hour = val % 24
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
918 val = val / 24
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
919 self.day = val
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
920 self.month = self.year = 0
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
921
2388
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
922 def setTranslator(self, translator):
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
923 """Replace the translation engine
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
924
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
925 'translator'
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
926 is i18n module or one of gettext translation classes.
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
927 It must have attributes 'gettext' and 'ngettext',
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
928 serving as translation functions.
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
929 """
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
930 self.translator = translator
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
931 self._ = translator.gettext
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
932 self.ngettext = translator.ngettext
8a9af227a557 Date and Interval objects allow to change translator after instance creation...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2359
diff changeset
933
2212
75e46660345c stop Interval from displaying an empty string [SF#934022]
Richard Jones <richard@users.sourceforge.net>
parents: 2189
diff changeset
934
1487
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
935 def fixTimeOverflow(time):
1930
71056b09f2bf Add tests for Interval.pretty().
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents: 1894
diff changeset
936 """ Handle the overflow in the time portion (H, M, S) of "time":
1487
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
937 (sign, y,m,d,H,M,S)
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
938
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
939 Overflow and underflow will at most affect the _days_ portion of
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
940 the date. We do not overflow days to months as we don't know _how_
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
941 to, generally.
1930
71056b09f2bf Add tests for Interval.pretty().
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents: 1894
diff changeset
942 """
1487
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
943 # XXX we could conceivably use this function for handling regular dates
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
944 # XXX too - we just need to interrogate the month/year for the day
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
945 # XXX overflow...
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
946
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
947 sign, y, m, d, H, M, S = time
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
948 seconds = sign * (S + M*60 + H*60*60 + d*60*60*24)
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
949 if seconds:
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
950 sign = seconds<0 and -1 or 1
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
951 seconds *= sign
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
952 S = seconds%60
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
953 seconds /= 60
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
954 M = seconds%60
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
955 seconds /= 60
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
956 H = seconds%24
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
957 d = seconds / 24
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
958 else:
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
959 months = y*12 + m
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
960 sign = months<0 and -1 or 1
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
961 months *= sign
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
962 m = months%12
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
963 y = months/12
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
964
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
965 return (sign, y, m, d, H, M, S)
37a1906f4454 fixed Interval maths [SF#665357]
Richard Jones <richard@users.sourceforge.net>
parents: 1463
diff changeset
966
1499
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
967 class Range:
2005
fc52d57c6c3e documentation cleanup
Richard Jones <richard@users.sourceforge.net>
parents: 1946
diff changeset
968 """Represents range between two values
1499
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
969 Ranges can be created using one of theese two alternative syntaxes:
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
970
2005
fc52d57c6c3e documentation cleanup
Richard Jones <richard@users.sourceforge.net>
parents: 1946
diff changeset
971 1. Native english syntax::
fc52d57c6c3e documentation cleanup
Richard Jones <richard@users.sourceforge.net>
parents: 1946
diff changeset
972
1499
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
973 [[From] <value>][ To <value>]
2005
fc52d57c6c3e documentation cleanup
Richard Jones <richard@users.sourceforge.net>
parents: 1946
diff changeset
974
fc52d57c6c3e documentation cleanup
Richard Jones <richard@users.sourceforge.net>
parents: 1946
diff changeset
975 Keywords "From" and "To" are case insensitive. Keyword "From" is
fc52d57c6c3e documentation cleanup
Richard Jones <richard@users.sourceforge.net>
parents: 1946
diff changeset
976 optional.
1499
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
977
2005
fc52d57c6c3e documentation cleanup
Richard Jones <richard@users.sourceforge.net>
parents: 1946
diff changeset
978 2. "Geek" syntax::
fc52d57c6c3e documentation cleanup
Richard Jones <richard@users.sourceforge.net>
parents: 1946
diff changeset
979
fc52d57c6c3e documentation cleanup
Richard Jones <richard@users.sourceforge.net>
parents: 1946
diff changeset
980 [<value>][; <value>]
1499
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
981
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
982 Either first or second <value> can be omitted in both syntaxes.
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
983
2005
fc52d57c6c3e documentation cleanup
Richard Jones <richard@users.sourceforge.net>
parents: 1946
diff changeset
984 Examples (consider local time is Sat Mar 8 22:07:48 EET 2003)::
fc52d57c6c3e documentation cleanup
Richard Jones <richard@users.sourceforge.net>
parents: 1946
diff changeset
985
1499
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
986 >>> Range("from 2-12 to 4-2")
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
987 <Range from 2003-02-12.00:00:00 to 2003-04-02.00:00:00>
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
988
1499
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
989 >>> Range("18:00 TO +2m")
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
990 <Range from 2003-03-08.18:00:00 to 2003-05-08.20:07:48>
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
991
1499
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
992 >>> Range("12:00")
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
993 <Range from 2003-03-08.12:00:00 to None>
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
994
1499
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
995 >>> Range("tO +3d")
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
996 <Range from None to 2003-03-11.20:07:48>
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
997
1499
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
998 >>> Range("2002-11-10; 2002-12-12")
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
999 <Range from 2002-11-10.00:00:00 to 2002-12-12.00:00:00>
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
1000
1499
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1001 >>> Range("; 20:00 +1d")
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1002 <Range from None to 2003-03-09.20:00:00>
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1003
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1004 """
1597
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
1005 def __init__(self, spec, Type, allow_granularity=1, **params):
1509
1d4ebe2a88fc hope this will make Range class a little bit clearer
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1505
diff changeset
1006 """Initializes Range of type <Type> from given <spec> string.
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
1007
1499
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1008 Sets two properties - from_value and to_value. None assigned to any of
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1009 this properties means "infinitum" (-infinitum to from_value and
1509
1d4ebe2a88fc hope this will make Range class a little bit clearer
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1505
diff changeset
1010 +infinitum to to_value)
1d4ebe2a88fc hope this will make Range class a little bit clearer
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1505
diff changeset
1011
1d4ebe2a88fc hope this will make Range class a little bit clearer
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1505
diff changeset
1012 The Type parameter here should be class itself (e.g. Date), not a
1d4ebe2a88fc hope this will make Range class a little bit clearer
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1505
diff changeset
1013 class instance.
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
1014
1499
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1015 """
1509
1d4ebe2a88fc hope this will make Range class a little bit clearer
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1505
diff changeset
1016 self.range_type = Type
1597
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
1017 re_range = r'(?:^|from(.+?))(?:to(.+?)$|$)'
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
1018 re_geek_range = r'(?:^|(.+?));(?:(.+?)$|$)'
1499
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1019 # Check which syntax to use
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1020 if spec.find(';') == -1:
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1021 # Native english
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1022 mch_range = re.search(re_range, spec.strip(), re.IGNORECASE)
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1023 else:
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1024 # Geek
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1025 mch_range = re.search(re_geek_range, spec.strip())
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1026 if mch_range:
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1027 self.from_value, self.to_value = mch_range.groups()
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1028 if self.from_value:
1509
1d4ebe2a88fc hope this will make Range class a little bit clearer
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1505
diff changeset
1029 self.from_value = Type(self.from_value.strip(), **params)
1499
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1030 if self.to_value:
1509
1d4ebe2a88fc hope this will make Range class a little bit clearer
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1505
diff changeset
1031 self.to_value = Type(self.to_value.strip(), **params)
1499
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1032 else:
1597
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
1033 if allow_granularity:
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
1034 self.from_value = Type(spec, **params)
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
1035 self.to_value = Type(spec, add_granularity=1, **params)
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
1036 else:
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
1037 raise ValueError, "Invalid range"
1499
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1038
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1039 def __str__(self):
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1040 return "from %s to %s" % (self.from_value, self.to_value)
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1041
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1042 def __repr__(self):
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1043 return "<Range %s>" % self.__str__()
2339
6ba57546d212 fix i18n - mainly plural forms in Interval.pretty()
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2262
diff changeset
1044
1499
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1045 def test_range():
1597
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
1046 rspecs = ("from 2-12 to 4-2", "from 18:00 TO +2m", "12:00;", "tO +3d",
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
1047 "2002-11-10; 2002-12-12", "; 20:00 +1d", '2002-10-12')
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
1048 rispecs = ('from -1w 2d 4:32 to 4d', '-2w 1d')
1499
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1049 for rspec in rspecs:
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1050 print '>>> Range("%s")' % rspec
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1051 print `Range(rspec, Date)`
8ee69708da0c added support for searching on ranges of dates
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1494
diff changeset
1052 print
1597
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
1053 for rspec in rispecs:
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
1054 print '>>> Range("%s")' % rspec
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
1055 print `Range(rspec, Interval)`
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
1056 print
25
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1057
4cf1daf2f2eb More Grande Splite
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1058 def test():
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1059 intervals = (" 3w 1 d 2:00", " + 2d", "3w")
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1060 for interval in intervals:
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1061 print '>>> Interval("%s")'%interval
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1062 print `Interval(interval)`
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1063
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1064 dates = (".", "2000-06-25.19:34:02", ". + 2d", "1997-04-17", "01-25",
1597
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
1065 "08-13.22:13", "14:25", '2002-12')
25
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1066 for date in dates:
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1067 print '>>> Date("%s")'%date
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1068 print `Date(date)`
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1069
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1070 sums = ((". + 2d", "3w"), (".", " 3w 1 d 2:00"))
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1071 for date, interval in sums:
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1072 print '>>> Date("%s") + Interval("%s")'%(date, interval)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1073 print `Date(date) + Interval(interval)`
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1074
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1075 if __name__ == '__main__':
1597
4d55f90d4af1 granularity based ranges
Andrey Lebedev <kedder@users.sourceforge.net>
parents: 1542
diff changeset
1076 test()
25
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1077
3210
ea29d69f7415 fix error message formatting in Date.__init__;
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 3151
diff changeset
1078 # vim: set filetype=python sts=4 sw=4 et si :
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