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comparison examples/trac/trac/util/datefmt.py @ 39:93b4dcbafd7b trunk
Copy Trac to main branch.
| author | cmlenz |
|---|---|
| date | Mon, 03 Jul 2006 18:53:27 +0000 |
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| 38:ee669cb9cccc | 39:93b4dcbafd7b |
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| 1 # -*- coding: utf-8 -*- | |
| 2 # | |
| 3 # Copyright (C) 2003-2006 Edgewall Software | |
| 4 # Copyright (C) 2003-2004 Jonas Borgström <jonas@edgewall.com> | |
| 5 # Copyright (C) 2006 Matthew Good <trac@matt-good.net> | |
| 6 # Copyright (C) 2005-2006 Christian Boos <cboos@neuf.fr> | |
| 7 # All rights reserved. | |
| 8 # | |
| 9 # This software is licensed as described in the file COPYING, which | |
| 10 # you should have received as part of this distribution. The terms | |
| 11 # are also available at http://trac.edgewall.com/license.html. | |
| 12 # | |
| 13 # This software consists of voluntary contributions made by many | |
| 14 # individuals. For exact contribution history, see the revision | |
| 15 # history and logs, available at http://projects.edgewall.com/trac/. | |
| 16 # | |
| 17 # Author: Jonas Borgström <jonas@edgewall.com> | |
| 18 # Matthew Good <trac@matt-good.net> | |
| 19 | |
| 20 import locale | |
| 21 import sys | |
| 22 import time | |
| 23 | |
| 24 # Date/time utilities | |
| 25 | |
| 26 def pretty_timedelta(time1, time2=None, resolution=None): | |
| 27 """Calculate time delta (inaccurately, only for decorative purposes ;-) for | |
| 28 prettyprinting. If time1 is None, the current time is used.""" | |
| 29 if not time1: time1 = time.time() | |
| 30 if not time2: time2 = time.time() | |
| 31 if time1 > time2: | |
| 32 time2, time1 = time1, time2 | |
| 33 units = ((3600 * 24 * 365, 'year', 'years'), | |
| 34 (3600 * 24 * 30, 'month', 'months'), | |
| 35 (3600 * 24 * 7, 'week', 'weeks'), | |
| 36 (3600 * 24, 'day', 'days'), | |
| 37 (3600, 'hour', 'hours'), | |
| 38 (60, 'minute', 'minutes')) | |
| 39 age_s = int(time2 - time1) | |
| 40 if resolution and age_s < resolution: | |
| 41 return '' | |
| 42 if age_s < 60: | |
| 43 return '%i second%s' % (age_s, age_s != 1 and 's' or '') | |
| 44 for u, unit, unit_plural in units: | |
| 45 r = float(age_s) / float(u) | |
| 46 if r >= 0.9: | |
| 47 r = int(round(r)) | |
| 48 return '%d %s' % (r, r == 1 and unit or unit_plural) | |
| 49 return '' | |
| 50 | |
| 51 def format_datetime(t=None, format='%x %X', gmt=False): | |
| 52 if t is None: | |
| 53 t = time.time() | |
| 54 if not isinstance(t, (list, tuple, time.struct_time)): | |
| 55 if gmt: | |
| 56 t = time.gmtime(int(t)) | |
| 57 else: | |
| 58 t = time.localtime(int(t)) | |
| 59 | |
| 60 text = time.strftime(format, t) | |
| 61 encoding = locale.getpreferredencoding() | |
| 62 if sys.platform != 'win32': | |
| 63 encoding = locale.getlocale(locale.LC_TIME)[1] or encoding | |
| 64 # the above is broken on win32, e.g. we'd get '437' instead of 'cp437' | |
| 65 return unicode(text, encoding, 'replace') | |
| 66 | |
| 67 def format_date(t=None, format='%x', gmt=False): | |
| 68 return format_datetime(t, format, gmt) | |
| 69 | |
| 70 def format_time(t=None, format='%X', gmt=False): | |
| 71 return format_datetime(t, format, gmt) | |
| 72 | |
| 73 def get_date_format_hint(): | |
| 74 t = time.localtime(0) | |
| 75 t = (1999, 10, 29, t[3], t[4], t[5], t[6], t[7], t[8]) | |
| 76 tmpl = format_date(t) | |
| 77 return tmpl.replace('1999', 'YYYY', 1).replace('99', 'YY', 1) \ | |
| 78 .replace('10', 'MM', 1).replace('29', 'DD', 1) | |
| 79 | |
| 80 def get_datetime_format_hint(): | |
| 81 t = time.localtime(0) | |
| 82 t = (1999, 10, 29, 23, 59, 58, t[6], t[7], t[8]) | |
| 83 tmpl = format_datetime(t) | |
| 84 return tmpl.replace('1999', 'YYYY', 1).replace('99', 'YY', 1) \ | |
| 85 .replace('10', 'MM', 1).replace('29', 'DD', 1) \ | |
| 86 .replace('23', 'hh', 1).replace('59', 'mm', 1) \ | |
| 87 .replace('58', 'ss', 1) | |
| 88 | |
| 89 def http_date(t=None): | |
| 90 """Format t as a rfc822 timestamp""" | |
| 91 if t is None: | |
| 92 t = time.time() | |
| 93 if not isinstance(t, (list, tuple, time.struct_time)): | |
| 94 t = time.gmtime(int(t)) | |
| 95 weekdays = ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'] | |
| 96 months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', | |
| 97 'Oct', 'Nov', 'Dec'] | |
| 98 return '%s, %02d %s %04d %02d:%02d:%02d GMT' % ( | |
| 99 weekdays[t.tm_wday], t.tm_mday, months[t.tm_mon - 1], t.tm_year, | |
| 100 t.tm_hour, t.tm_min, t.tm_sec) | |
| 101 | |
| 102 def parse_date(text): | |
| 103 seconds = None | |
| 104 text = text.strip() | |
| 105 for format in ['%x %X', '%x, %X', '%X %x', '%X, %x', '%x', '%c', | |
| 106 '%b %d, %Y']: | |
| 107 try: | |
| 108 date = time.strptime(text, format) | |
| 109 seconds = time.mktime(date) | |
| 110 break | |
| 111 except ValueError: | |
| 112 continue | |
| 113 if seconds == None: | |
| 114 raise ValueError, '%s is not a known date format.' % text | |
| 115 return seconds |