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comparison env/lib/python3.7/site-packages/isodate/isostrf.py @ 5:9b1c78e6ba9c draft default tip

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"planemo upload commit 6c0a8142489327ece472c84e558c47da711a9142"
author shellac
date Mon, 01 Jun 2020 08:59:25 -0400
parents 79f47841a781
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4:79f47841a781 5:9b1c78e6ba9c
1 ##############################################################################
2 # Copyright 2009, Gerhard Weis
3 # All rights reserved.
4 #
5 # Redistribution and use in source and binary forms, with or without
6 # modification, are permitted provided that the following conditions are met:
7 #
8 # * Redistributions of source code must retain the above copyright notice,
9 # this list of conditions and the following disclaimer.
10 # * Redistributions in binary form must reproduce the above copyright notice,
11 # this list of conditions and the following disclaimer in the documentation
12 # and/or other materials provided with the distribution.
13 # * Neither the name of the authors nor the names of its contributors
14 # may be used to endorse or promote products derived from this software
15 # without specific prior written permission.
16 #
17 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18 # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 # ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
21 # LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22 # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23 # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24 # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25 # CONTRACT, STRICT LIABILITY, OR TORT
26 ##############################################################################
27 """
28 This module provides an alternative strftime method.
29
30 The strftime method in this module allows only a subset of Python's strftime
31 format codes, plus a few additional. It supports the full range of date values
32 possible with standard Python date/time objects. Furthermore there are several
33 pr-defined format strings in this module to make ease producing of ISO 8601
34 conforming strings.
35 """
36 import re
37 from datetime import date, timedelta
38
39 from isodate.duration import Duration
40 from isodate.isotzinfo import tz_isoformat
41
42 # Date specific format strings
43 DATE_BAS_COMPLETE = '%Y%m%d'
44 DATE_EXT_COMPLETE = '%Y-%m-%d'
45 DATE_BAS_WEEK_COMPLETE = '%YW%W%w'
46 DATE_EXT_WEEK_COMPLETE = '%Y-W%W-%w'
47 DATE_BAS_ORD_COMPLETE = '%Y%j'
48 DATE_EXT_ORD_COMPLETE = '%Y-%j'
49 DATE_BAS_WEEK = '%YW%W'
50 DATE_EXT_WEEK = '%Y-W%W'
51 DATE_BAS_MONTH = '%Y%m'
52 DATE_EXT_MONTH = '%Y-%m'
53 DATE_YEAR = '%Y'
54 DATE_CENTURY = '%C'
55
56 # Time specific format strings
57 TIME_BAS_COMPLETE = '%H%M%S'
58 TIME_EXT_COMPLETE = '%H:%M:%S'
59 TIME_BAS_MINUTE = '%H%M'
60 TIME_EXT_MINUTE = '%H:%M'
61 TIME_HOUR = '%H'
62
63 # Time zone formats
64 TZ_BAS = '%z'
65 TZ_EXT = '%Z'
66 TZ_HOUR = '%h'
67
68 # DateTime formats
69 DT_EXT_COMPLETE = DATE_EXT_COMPLETE + 'T' + TIME_EXT_COMPLETE + TZ_EXT
70 DT_BAS_COMPLETE = DATE_BAS_COMPLETE + 'T' + TIME_BAS_COMPLETE + TZ_BAS
71 DT_EXT_ORD_COMPLETE = DATE_EXT_ORD_COMPLETE + 'T' + TIME_EXT_COMPLETE + TZ_EXT
72 DT_BAS_ORD_COMPLETE = DATE_BAS_ORD_COMPLETE + 'T' + TIME_BAS_COMPLETE + TZ_BAS
73 DT_EXT_WEEK_COMPLETE = (DATE_EXT_WEEK_COMPLETE + 'T' +
74 TIME_EXT_COMPLETE + TZ_EXT)
75 DT_BAS_WEEK_COMPLETE = (DATE_BAS_WEEK_COMPLETE + 'T' +
76 TIME_BAS_COMPLETE + TZ_BAS)
77
78 # Duration formts
79 D_DEFAULT = 'P%P'
80 D_WEEK = 'P%p'
81 D_ALT_EXT = 'P' + DATE_EXT_COMPLETE + 'T' + TIME_EXT_COMPLETE
82 D_ALT_BAS = 'P' + DATE_BAS_COMPLETE + 'T' + TIME_BAS_COMPLETE
83 D_ALT_EXT_ORD = 'P' + DATE_EXT_ORD_COMPLETE + 'T' + TIME_EXT_COMPLETE
84 D_ALT_BAS_ORD = 'P' + DATE_BAS_ORD_COMPLETE + 'T' + TIME_BAS_COMPLETE
85
86 STRF_DT_MAP = {'%d': lambda tdt, yds: '%02d' % tdt.day,
87 '%f': lambda tdt, yds: '%06d' % tdt.microsecond,
88 '%H': lambda tdt, yds: '%02d' % tdt.hour,
89 '%j': lambda tdt, yds: '%03d' % (tdt.toordinal() -
90 date(tdt.year,
91 1, 1).toordinal() +
92 1),
93 '%m': lambda tdt, yds: '%02d' % tdt.month,
94 '%M': lambda tdt, yds: '%02d' % tdt.minute,
95 '%S': lambda tdt, yds: '%02d' % tdt.second,
96 '%w': lambda tdt, yds: '%1d' % tdt.isoweekday(),
97 '%W': lambda tdt, yds: '%02d' % tdt.isocalendar()[1],
98 '%Y': lambda tdt, yds: (((yds != 4) and '+') or '') +
99 (('%%0%dd' % yds) % tdt.year),
100 '%C': lambda tdt, yds: (((yds != 4) and '+') or '') +
101 (('%%0%dd' % (yds - 2)) %
102 (tdt.year / 100)),
103 '%h': lambda tdt, yds: tz_isoformat(tdt, '%h'),
104 '%Z': lambda tdt, yds: tz_isoformat(tdt, '%Z'),
105 '%z': lambda tdt, yds: tz_isoformat(tdt, '%z'),
106 '%%': lambda tdt, yds: '%'}
107
108 STRF_D_MAP = {'%d': lambda tdt, yds: '%02d' % tdt.days,
109 '%f': lambda tdt, yds: '%06d' % tdt.microseconds,
110 '%H': lambda tdt, yds: '%02d' % (tdt.seconds / 60 / 60),
111 '%m': lambda tdt, yds: '%02d' % tdt.months,
112 '%M': lambda tdt, yds: '%02d' % ((tdt.seconds / 60) % 60),
113 '%S': lambda tdt, yds: '%02d' % (tdt.seconds % 60),
114 '%W': lambda tdt, yds: '%02d' % (abs(tdt.days / 7)),
115 '%Y': lambda tdt, yds: (((yds != 4) and '+') or '') +
116 (('%%0%dd' % yds) % tdt.years),
117 '%C': lambda tdt, yds: (((yds != 4) and '+') or '') +
118 (('%%0%dd' % (yds - 2)) %
119 (tdt.years / 100)),
120 '%%': lambda tdt, yds: '%'}
121
122
123 def _strfduration(tdt, format, yeardigits=4):
124 '''
125 this is the work method for timedelta and Duration instances.
126
127 see strftime for more details.
128 '''
129 def repl(match):
130 '''
131 lookup format command and return corresponding replacement.
132 '''
133 if match.group(0) in STRF_D_MAP:
134 return STRF_D_MAP[match.group(0)](tdt, yeardigits)
135 elif match.group(0) == '%P':
136 ret = []
137 if isinstance(tdt, Duration):
138 if tdt.years:
139 ret.append('%sY' % abs(tdt.years))
140 if tdt.months:
141 ret.append('%sM' % abs(tdt.months))
142 usecs = abs((tdt.days * 24 * 60 * 60 + tdt.seconds) * 1000000 +
143 tdt.microseconds)
144 seconds, usecs = divmod(usecs, 1000000)
145 minutes, seconds = divmod(seconds, 60)
146 hours, minutes = divmod(minutes, 60)
147 days, hours = divmod(hours, 24)
148 if days:
149 ret.append('%sD' % days)
150 if hours or minutes or seconds or usecs:
151 ret.append('T')
152 if hours:
153 ret.append('%sH' % hours)
154 if minutes:
155 ret.append('%sM' % minutes)
156 if seconds or usecs:
157 if usecs:
158 ret.append(("%d.%06d" % (seconds, usecs)).rstrip('0'))
159 else:
160 ret.append("%d" % seconds)
161 ret.append('S')
162 # at least one component has to be there.
163 return ret and ''.join(ret) or '0D'
164 elif match.group(0) == '%p':
165 return str(abs(tdt.days // 7)) + 'W'
166 return match.group(0)
167 return re.sub('%d|%f|%H|%m|%M|%S|%W|%Y|%C|%%|%P|%p', repl,
168 format)
169
170
171 def _strfdt(tdt, format, yeardigits=4):
172 '''
173 this is the work method for time and date instances.
174
175 see strftime for more details.
176 '''
177 def repl(match):
178 '''
179 lookup format command and return corresponding replacement.
180 '''
181 if match.group(0) in STRF_DT_MAP:
182 return STRF_DT_MAP[match.group(0)](tdt, yeardigits)
183 return match.group(0)
184 return re.sub('%d|%f|%H|%j|%m|%M|%S|%w|%W|%Y|%C|%z|%Z|%h|%%', repl,
185 format)
186
187
188 def strftime(tdt, format, yeardigits=4):
189 '''Directive Meaning Notes
190 %d Day of the month as a decimal number [01,31].
191 %f Microsecond as a decimal number [0,999999], zero-padded
192 on the left (1)
193 %H Hour (24-hour clock) as a decimal number [00,23].
194 %j Day of the year as a decimal number [001,366].
195 %m Month as a decimal number [01,12].
196 %M Minute as a decimal number [00,59].
197 %S Second as a decimal number [00,61]. (3)
198 %w Weekday as a decimal number [0(Monday),6].
199 %W Week number of the year (Monday as the first day of the week)
200 as a decimal number [00,53]. All days in a new year preceding the
201 first Monday are considered to be in week 0. (4)
202 %Y Year with century as a decimal number. [0000,9999]
203 %C Century as a decimal number. [00,99]
204 %z UTC offset in the form +HHMM or -HHMM (empty string if the
205 object is naive). (5)
206 %Z Time zone name (empty string if the object is naive).
207 %P ISO8601 duration format.
208 %p ISO8601 duration format in weeks.
209 %% A literal '%' character.
210
211 '''
212 if isinstance(tdt, (timedelta, Duration)):
213 return _strfduration(tdt, format, yeardigits)
214 return _strfdt(tdt, format, yeardigits)