diff options
Diffstat (limited to 'Lib/tzparse.py')
| -rw-r--r-- | Lib/tzparse.py | 142 |
1 files changed, 71 insertions, 71 deletions
diff --git a/Lib/tzparse.py b/Lib/tzparse.py index 27f1fa1..38e6af1 100644 --- a/Lib/tzparse.py +++ b/Lib/tzparse.py @@ -4,90 +4,90 @@ # XXX Only the typical form "XXXhhYYY;ddd/hh,ddd/hh" is currently supported. tzpat = ('^([A-Z][A-Z][A-Z])([-+]?[0-9]+)([A-Z][A-Z][A-Z]);' - '([0-9]+)/([0-9]+),([0-9]+)/([0-9]+)$') + '([0-9]+)/([0-9]+),([0-9]+)/([0-9]+)$') tzprog = None def tzparse(tzstr): - """Given a timezone spec, return a tuple of information - (tzname, delta, dstname, daystart, hourstart, dayend, hourend), - where 'tzname' is the name of the timezone, 'delta' is the offset - in hours from GMT, 'dstname' is the name of the daylight-saving - timezone, and 'daystart'/'hourstart' and 'dayend'/'hourend' - specify the starting and ending points for daylight saving time.""" - global tzprog - if tzprog is None: - import re - tzprog = re.compile(tzpat) - match = tzprog.match(tzstr) - if not match: - raise ValueError, 'not the TZ syntax I understand' - subs = [] - for i in range(1, 8): - subs.append(match.group(i)) - for i in (1, 3, 4, 5, 6): - subs[i] = eval(subs[i]) - [tzname, delta, dstname, daystart, hourstart, dayend, hourend] = subs - return (tzname, delta, dstname, daystart, hourstart, dayend, hourend) + """Given a timezone spec, return a tuple of information + (tzname, delta, dstname, daystart, hourstart, dayend, hourend), + where 'tzname' is the name of the timezone, 'delta' is the offset + in hours from GMT, 'dstname' is the name of the daylight-saving + timezone, and 'daystart'/'hourstart' and 'dayend'/'hourend' + specify the starting and ending points for daylight saving time.""" + global tzprog + if tzprog is None: + import re + tzprog = re.compile(tzpat) + match = tzprog.match(tzstr) + if not match: + raise ValueError, 'not the TZ syntax I understand' + subs = [] + for i in range(1, 8): + subs.append(match.group(i)) + for i in (1, 3, 4, 5, 6): + subs[i] = eval(subs[i]) + [tzname, delta, dstname, daystart, hourstart, dayend, hourend] = subs + return (tzname, delta, dstname, daystart, hourstart, dayend, hourend) def tzlocaltime(secs, params): - """Given a Unix time in seconds and a tuple of information about - a timezone as returned by tzparse(), return the local time in the - form (year, month, day, hour, min, sec, yday, wday, tzname).""" - import time - (tzname, delta, dstname, daystart, hourstart, dayend, hourend) = params - year, month, days, hours, mins, secs, yday, wday, isdst = \ - time.gmtime(secs - delta*3600) - if (daystart, hourstart) <= (yday+1, hours) < (dayend, hourend): - tzname = dstname - hours = hours + 1 - return year, month, days, hours, mins, secs, yday, wday, tzname + """Given a Unix time in seconds and a tuple of information about + a timezone as returned by tzparse(), return the local time in the + form (year, month, day, hour, min, sec, yday, wday, tzname).""" + import time + (tzname, delta, dstname, daystart, hourstart, dayend, hourend) = params + year, month, days, hours, mins, secs, yday, wday, isdst = \ + time.gmtime(secs - delta*3600) + if (daystart, hourstart) <= (yday+1, hours) < (dayend, hourend): + tzname = dstname + hours = hours + 1 + return year, month, days, hours, mins, secs, yday, wday, tzname def tzset(): - """Determine the current timezone from the "TZ" environment variable.""" - global tzparams, timezone, altzone, daylight, tzname - import os - tzstr = os.environ['TZ'] - tzparams = tzparse(tzstr) - timezone = tzparams[1] * 3600 - altzone = timezone - 3600 - daylight = 1 - tzname = tzparams[0], tzparams[2] + """Determine the current timezone from the "TZ" environment variable.""" + global tzparams, timezone, altzone, daylight, tzname + import os + tzstr = os.environ['TZ'] + tzparams = tzparse(tzstr) + timezone = tzparams[1] * 3600 + altzone = timezone - 3600 + daylight = 1 + tzname = tzparams[0], tzparams[2] def isdst(secs): - """Return true if daylight-saving time is in effect for the given - Unix time in the current timezone.""" - import time - (tzname, delta, dstname, daystart, hourstart, dayend, hourend) = \ - tzparams - year, month, days, hours, mins, secs, yday, wday, isdst = \ - time.gmtime(secs - delta*3600) - return (daystart, hourstart) <= (yday+1, hours) < (dayend, hourend) + """Return true if daylight-saving time is in effect for the given + Unix time in the current timezone.""" + import time + (tzname, delta, dstname, daystart, hourstart, dayend, hourend) = \ + tzparams + year, month, days, hours, mins, secs, yday, wday, isdst = \ + time.gmtime(secs - delta*3600) + return (daystart, hourstart) <= (yday+1, hours) < (dayend, hourend) tzset() def localtime(secs): - """Get the local time in the current timezone.""" - return tzlocaltime(secs, tzparams) + """Get the local time in the current timezone.""" + return tzlocaltime(secs, tzparams) def test(): - from time import asctime, gmtime - import time, sys - now = time.time() - x = localtime(now) - tm = x[:-1] + (0,) - print 'now =', now, '=', asctime(tm), x[-1] - now = now - now % (24*3600) - if sys.argv[1:]: now = now + eval(sys.argv[1]) - x = gmtime(now) - tm = x[:-1] + (0,) - print 'gmtime =', now, '=', asctime(tm), 'yday =', x[-2] - jan1 = now - x[-2]*24*3600 - x = localtime(jan1) - tm = x[:-1] + (0,) - print 'jan1 =', jan1, '=', asctime(tm), x[-1] - for d in range(85, 95) + range(265, 275): - t = jan1 + d*24*3600 - x = localtime(t) - tm = x[:-1] + (0,) - print 'd =', d, 't =', t, '=', asctime(tm), x[-1] + from time import asctime, gmtime + import time, sys + now = time.time() + x = localtime(now) + tm = x[:-1] + (0,) + print 'now =', now, '=', asctime(tm), x[-1] + now = now - now % (24*3600) + if sys.argv[1:]: now = now + eval(sys.argv[1]) + x = gmtime(now) + tm = x[:-1] + (0,) + print 'gmtime =', now, '=', asctime(tm), 'yday =', x[-2] + jan1 = now - x[-2]*24*3600 + x = localtime(jan1) + tm = x[:-1] + (0,) + print 'jan1 =', jan1, '=', asctime(tm), x[-1] + for d in range(85, 95) + range(265, 275): + t = jan1 + d*24*3600 + x = localtime(t) + tm = x[:-1] + (0,) + print 'd =', d, 't =', t, '=', asctime(tm), x[-1] |