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