mirror of
https://github.com/Mikaela/Limnoria.git
synced 2024-11-23 19:19:32 +01:00
1098 lines
40 KiB
Python
1098 lines
40 KiB
Python
"""
|
|
Copyright (c) 2003-2007 Gustavo Niemeyer <gustavo@niemeyer.net>
|
|
|
|
This module offers extensions to the standard python 2.3+
|
|
datetime module.
|
|
"""
|
|
__author__ = "Gustavo Niemeyer <gustavo@niemeyer.net>"
|
|
__license__ = "PSF License"
|
|
|
|
import itertools
|
|
import datetime
|
|
import calendar
|
|
import thread
|
|
import sys
|
|
|
|
__all__ = ["rrule", "rruleset", "rrulestr",
|
|
"YEARLY", "MONTHLY", "WEEKLY", "DAILY",
|
|
"HOURLY", "MINUTELY", "SECONDLY",
|
|
"MO", "TU", "WE", "TH", "FR", "SA", "SU"]
|
|
|
|
# Every mask is 7 days longer to handle cross-year weekly periods.
|
|
M366MASK = tuple([1]*31+[2]*29+[3]*31+[4]*30+[5]*31+[6]*30+
|
|
[7]*31+[8]*31+[9]*30+[10]*31+[11]*30+[12]*31+[1]*7)
|
|
M365MASK = list(M366MASK)
|
|
M29, M30, M31 = range(1,30), range(1,31), range(1,32)
|
|
MDAY366MASK = tuple(M31+M29+M31+M30+M31+M30+M31+M31+M30+M31+M30+M31+M31[:7])
|
|
MDAY365MASK = list(MDAY366MASK)
|
|
M29, M30, M31 = range(-29,0), range(-30,0), range(-31,0)
|
|
NMDAY366MASK = tuple(M31+M29+M31+M30+M31+M30+M31+M31+M30+M31+M30+M31+M31[:7])
|
|
NMDAY365MASK = list(NMDAY366MASK)
|
|
M366RANGE = (0,31,60,91,121,152,182,213,244,274,305,335,366)
|
|
M365RANGE = (0,31,59,90,120,151,181,212,243,273,304,334,365)
|
|
WDAYMASK = [0,1,2,3,4,5,6]*55
|
|
del M29, M30, M31, M365MASK[59], MDAY365MASK[59], NMDAY365MASK[31]
|
|
MDAY365MASK = tuple(MDAY365MASK)
|
|
M365MASK = tuple(M365MASK)
|
|
|
|
(YEARLY,
|
|
MONTHLY,
|
|
WEEKLY,
|
|
DAILY,
|
|
HOURLY,
|
|
MINUTELY,
|
|
SECONDLY) = range(7)
|
|
|
|
# Imported on demand.
|
|
easter = None
|
|
parser = None
|
|
|
|
class weekday(object):
|
|
__slots__ = ["weekday", "n"]
|
|
|
|
def __init__(self, weekday, n=None):
|
|
if n == 0:
|
|
raise ValueError, "Can't create weekday with n == 0"
|
|
self.weekday = weekday
|
|
self.n = n
|
|
|
|
def __call__(self, n):
|
|
if n == self.n:
|
|
return self
|
|
else:
|
|
return self.__class__(self.weekday, n)
|
|
|
|
def __eq__(self, other):
|
|
try:
|
|
if self.weekday != other.weekday or self.n != other.n:
|
|
return False
|
|
except AttributeError:
|
|
return False
|
|
return True
|
|
|
|
def __repr__(self):
|
|
s = ("MO", "TU", "WE", "TH", "FR", "SA", "SU")[self.weekday]
|
|
if not self.n:
|
|
return s
|
|
else:
|
|
return "%s(%+d)" % (s, self.n)
|
|
|
|
MO, TU, WE, TH, FR, SA, SU = weekdays = tuple([weekday(x) for x in range(7)])
|
|
|
|
class rrulebase:
|
|
def __init__(self, cache=False):
|
|
if cache:
|
|
self._cache = []
|
|
self._cache_lock = thread.allocate_lock()
|
|
self._cache_gen = self._iter()
|
|
self._cache_complete = False
|
|
else:
|
|
self._cache = None
|
|
self._cache_complete = False
|
|
self._len = None
|
|
|
|
def __iter__(self):
|
|
if self._cache_complete:
|
|
return iter(self._cache)
|
|
elif self._cache is None:
|
|
return self._iter()
|
|
else:
|
|
return self._iter_cached()
|
|
|
|
def _iter_cached(self):
|
|
i = 0
|
|
gen = self._cache_gen
|
|
cache = self._cache
|
|
acquire = self._cache_lock.acquire
|
|
release = self._cache_lock.release
|
|
while gen:
|
|
if i == len(cache):
|
|
acquire()
|
|
if self._cache_complete:
|
|
break
|
|
try:
|
|
for j in range(10):
|
|
cache.append(gen.next())
|
|
except StopIteration:
|
|
self._cache_gen = gen = None
|
|
self._cache_complete = True
|
|
break
|
|
release()
|
|
yield cache[i]
|
|
i += 1
|
|
while i < self._len:
|
|
yield cache[i]
|
|
i += 1
|
|
|
|
def __getitem__(self, item):
|
|
if self._cache_complete:
|
|
return self._cache[item]
|
|
elif isinstance(item, slice):
|
|
if item.step and item.step < 0:
|
|
return list(iter(self))[item]
|
|
else:
|
|
return list(itertools.islice(self,
|
|
item.start or 0,
|
|
item.stop or sys.maxint,
|
|
item.step or 1))
|
|
elif item >= 0:
|
|
gen = iter(self)
|
|
try:
|
|
for i in range(item+1):
|
|
res = gen.next()
|
|
except StopIteration:
|
|
raise IndexError
|
|
return res
|
|
else:
|
|
return list(iter(self))[item]
|
|
|
|
def __contains__(self, item):
|
|
if self._cache_complete:
|
|
return item in self._cache
|
|
else:
|
|
for i in self:
|
|
if i == item:
|
|
return True
|
|
elif i > item:
|
|
return False
|
|
return False
|
|
|
|
# __len__() introduces a large performance penality.
|
|
def count(self):
|
|
if self._len is None:
|
|
for x in self: pass
|
|
return self._len
|
|
|
|
def before(self, dt, inc=False):
|
|
if self._cache_complete:
|
|
gen = self._cache
|
|
else:
|
|
gen = self
|
|
last = None
|
|
if inc:
|
|
for i in gen:
|
|
if i > dt:
|
|
break
|
|
last = i
|
|
else:
|
|
for i in gen:
|
|
if i >= dt:
|
|
break
|
|
last = i
|
|
return last
|
|
|
|
def after(self, dt, inc=False):
|
|
if self._cache_complete:
|
|
gen = self._cache
|
|
else:
|
|
gen = self
|
|
if inc:
|
|
for i in gen:
|
|
if i >= dt:
|
|
return i
|
|
else:
|
|
for i in gen:
|
|
if i > dt:
|
|
return i
|
|
return None
|
|
|
|
def between(self, after, before, inc=False):
|
|
if self._cache_complete:
|
|
gen = self._cache
|
|
else:
|
|
gen = self
|
|
started = False
|
|
l = []
|
|
if inc:
|
|
for i in gen:
|
|
if i > before:
|
|
break
|
|
elif not started:
|
|
if i >= after:
|
|
started = True
|
|
l.append(i)
|
|
else:
|
|
l.append(i)
|
|
else:
|
|
for i in gen:
|
|
if i >= before:
|
|
break
|
|
elif not started:
|
|
if i > after:
|
|
started = True
|
|
l.append(i)
|
|
else:
|
|
l.append(i)
|
|
return l
|
|
|
|
class rrule(rrulebase):
|
|
def __init__(self, freq, dtstart=None,
|
|
interval=1, wkst=None, count=None, until=None, bysetpos=None,
|
|
bymonth=None, bymonthday=None, byyearday=None, byeaster=None,
|
|
byweekno=None, byweekday=None,
|
|
byhour=None, byminute=None, bysecond=None,
|
|
cache=False):
|
|
rrulebase.__init__(self, cache)
|
|
global easter
|
|
if not dtstart:
|
|
dtstart = datetime.datetime.now().replace(microsecond=0)
|
|
elif not isinstance(dtstart, datetime.datetime):
|
|
dtstart = datetime.datetime.fromordinal(dtstart.toordinal())
|
|
else:
|
|
dtstart = dtstart.replace(microsecond=0)
|
|
self._dtstart = dtstart
|
|
self._tzinfo = dtstart.tzinfo
|
|
self._freq = freq
|
|
self._interval = interval
|
|
self._count = count
|
|
if until and not isinstance(until, datetime.datetime):
|
|
until = datetime.datetime.fromordinal(until.toordinal())
|
|
self._until = until
|
|
if wkst is None:
|
|
self._wkst = calendar.firstweekday()
|
|
elif type(wkst) is int:
|
|
self._wkst = wkst
|
|
else:
|
|
self._wkst = wkst.weekday
|
|
if bysetpos is None:
|
|
self._bysetpos = None
|
|
elif type(bysetpos) is int:
|
|
if bysetpos == 0 or not (-366 <= bysetpos <= 366):
|
|
raise ValueError("bysetpos must be between 1 and 366, "
|
|
"or between -366 and -1")
|
|
self._bysetpos = (bysetpos,)
|
|
else:
|
|
self._bysetpos = tuple(bysetpos)
|
|
for pos in self._bysetpos:
|
|
if pos == 0 or not (-366 <= pos <= 366):
|
|
raise ValueError("bysetpos must be between 1 and 366, "
|
|
"or between -366 and -1")
|
|
if not (byweekno or byyearday or bymonthday or
|
|
byweekday is not None or byeaster is not None):
|
|
if freq == YEARLY:
|
|
if not bymonth:
|
|
bymonth = dtstart.month
|
|
bymonthday = dtstart.day
|
|
elif freq == MONTHLY:
|
|
bymonthday = dtstart.day
|
|
elif freq == WEEKLY:
|
|
byweekday = dtstart.weekday()
|
|
# bymonth
|
|
if not bymonth:
|
|
self._bymonth = None
|
|
elif type(bymonth) is int:
|
|
self._bymonth = (bymonth,)
|
|
else:
|
|
self._bymonth = tuple(bymonth)
|
|
# byyearday
|
|
if not byyearday:
|
|
self._byyearday = None
|
|
elif type(byyearday) is int:
|
|
self._byyearday = (byyearday,)
|
|
else:
|
|
self._byyearday = tuple(byyearday)
|
|
# byeaster
|
|
if byeaster is not None:
|
|
if not easter:
|
|
from dateutil import easter
|
|
if type(byeaster) is int:
|
|
self._byeaster = (byeaster,)
|
|
else:
|
|
self._byeaster = tuple(byeaster)
|
|
else:
|
|
self._byeaster = None
|
|
# bymonthay
|
|
if not bymonthday:
|
|
self._bymonthday = ()
|
|
self._bynmonthday = ()
|
|
elif type(bymonthday) is int:
|
|
if bymonthday < 0:
|
|
self._bynmonthday = (bymonthday,)
|
|
self._bymonthday = ()
|
|
else:
|
|
self._bymonthday = (bymonthday,)
|
|
self._bynmonthday = ()
|
|
else:
|
|
self._bymonthday = tuple([x for x in bymonthday if x > 0])
|
|
self._bynmonthday = tuple([x for x in bymonthday if x < 0])
|
|
# byweekno
|
|
if byweekno is None:
|
|
self._byweekno = None
|
|
elif type(byweekno) is int:
|
|
self._byweekno = (byweekno,)
|
|
else:
|
|
self._byweekno = tuple(byweekno)
|
|
# byweekday / bynweekday
|
|
if byweekday is None:
|
|
self._byweekday = None
|
|
self._bynweekday = None
|
|
elif type(byweekday) is int:
|
|
self._byweekday = (byweekday,)
|
|
self._bynweekday = None
|
|
elif hasattr(byweekday, "n"):
|
|
if not byweekday.n or freq > MONTHLY:
|
|
self._byweekday = (byweekday.weekday,)
|
|
self._bynweekday = None
|
|
else:
|
|
self._bynweekday = ((byweekday.weekday, byweekday.n),)
|
|
self._byweekday = None
|
|
else:
|
|
self._byweekday = []
|
|
self._bynweekday = []
|
|
for wday in byweekday:
|
|
if type(wday) is int:
|
|
self._byweekday.append(wday)
|
|
elif not wday.n or freq > MONTHLY:
|
|
self._byweekday.append(wday.weekday)
|
|
else:
|
|
self._bynweekday.append((wday.weekday, wday.n))
|
|
self._byweekday = tuple(self._byweekday)
|
|
self._bynweekday = tuple(self._bynweekday)
|
|
if not self._byweekday:
|
|
self._byweekday = None
|
|
elif not self._bynweekday:
|
|
self._bynweekday = None
|
|
# byhour
|
|
if byhour is None:
|
|
if freq < HOURLY:
|
|
self._byhour = (dtstart.hour,)
|
|
else:
|
|
self._byhour = None
|
|
elif type(byhour) is int:
|
|
self._byhour = (byhour,)
|
|
else:
|
|
self._byhour = tuple(byhour)
|
|
# byminute
|
|
if byminute is None:
|
|
if freq < MINUTELY:
|
|
self._byminute = (dtstart.minute,)
|
|
else:
|
|
self._byminute = None
|
|
elif type(byminute) is int:
|
|
self._byminute = (byminute,)
|
|
else:
|
|
self._byminute = tuple(byminute)
|
|
# bysecond
|
|
if bysecond is None:
|
|
if freq < SECONDLY:
|
|
self._bysecond = (dtstart.second,)
|
|
else:
|
|
self._bysecond = None
|
|
elif type(bysecond) is int:
|
|
self._bysecond = (bysecond,)
|
|
else:
|
|
self._bysecond = tuple(bysecond)
|
|
|
|
if self._freq >= HOURLY:
|
|
self._timeset = None
|
|
else:
|
|
self._timeset = []
|
|
for hour in self._byhour:
|
|
for minute in self._byminute:
|
|
for second in self._bysecond:
|
|
self._timeset.append(
|
|
datetime.time(hour, minute, second,
|
|
tzinfo=self._tzinfo))
|
|
self._timeset.sort()
|
|
self._timeset = tuple(self._timeset)
|
|
|
|
def _iter(self):
|
|
year, month, day, hour, minute, second, weekday, yearday, _ = \
|
|
self._dtstart.timetuple()
|
|
|
|
# Some local variables to speed things up a bit
|
|
freq = self._freq
|
|
interval = self._interval
|
|
wkst = self._wkst
|
|
until = self._until
|
|
bymonth = self._bymonth
|
|
byweekno = self._byweekno
|
|
byyearday = self._byyearday
|
|
byweekday = self._byweekday
|
|
byeaster = self._byeaster
|
|
bymonthday = self._bymonthday
|
|
bynmonthday = self._bynmonthday
|
|
bysetpos = self._bysetpos
|
|
byhour = self._byhour
|
|
byminute = self._byminute
|
|
bysecond = self._bysecond
|
|
|
|
ii = _iterinfo(self)
|
|
ii.rebuild(year, month)
|
|
|
|
getdayset = {YEARLY:ii.ydayset,
|
|
MONTHLY:ii.mdayset,
|
|
WEEKLY:ii.wdayset,
|
|
DAILY:ii.ddayset,
|
|
HOURLY:ii.ddayset,
|
|
MINUTELY:ii.ddayset,
|
|
SECONDLY:ii.ddayset}[freq]
|
|
|
|
if freq < HOURLY:
|
|
timeset = self._timeset
|
|
else:
|
|
gettimeset = {HOURLY:ii.htimeset,
|
|
MINUTELY:ii.mtimeset,
|
|
SECONDLY:ii.stimeset}[freq]
|
|
if ((freq >= HOURLY and
|
|
self._byhour and hour not in self._byhour) or
|
|
(freq >= MINUTELY and
|
|
self._byminute and minute not in self._byminute) or
|
|
(freq >= SECONDLY and
|
|
self._bysecond and minute not in self._bysecond)):
|
|
timeset = ()
|
|
else:
|
|
timeset = gettimeset(hour, minute, second)
|
|
|
|
total = 0
|
|
count = self._count
|
|
while True:
|
|
# Get dayset with the right frequency
|
|
dayset, start, end = getdayset(year, month, day)
|
|
|
|
# Do the "hard" work ;-)
|
|
filtered = False
|
|
for i in dayset[start:end]:
|
|
if ((bymonth and ii.mmask[i] not in bymonth) or
|
|
(byweekno and not ii.wnomask[i]) or
|
|
(byweekday and ii.wdaymask[i] not in byweekday) or
|
|
(ii.nwdaymask and not ii.nwdaymask[i]) or
|
|
(byeaster and not ii.eastermask[i]) or
|
|
((bymonthday or bynmonthday) and
|
|
ii.mdaymask[i] not in bymonthday and
|
|
ii.nmdaymask[i] not in bynmonthday) or
|
|
(byyearday and
|
|
((i < ii.yearlen and i+1 not in byyearday
|
|
and -ii.yearlen+i not in byyearday) or
|
|
(i >= ii.yearlen and i+1-ii.yearlen not in byyearday
|
|
and -ii.nextyearlen+i-ii.yearlen
|
|
not in byyearday)))):
|
|
dayset[i] = None
|
|
filtered = True
|
|
|
|
# Output results
|
|
if bysetpos and timeset:
|
|
poslist = []
|
|
for pos in bysetpos:
|
|
if pos < 0:
|
|
daypos, timepos = divmod(pos, len(timeset))
|
|
else:
|
|
daypos, timepos = divmod(pos-1, len(timeset))
|
|
try:
|
|
i = [x for x in dayset[start:end]
|
|
if x is not None][daypos]
|
|
time = timeset[timepos]
|
|
except IndexError:
|
|
pass
|
|
else:
|
|
date = datetime.date.fromordinal(ii.yearordinal+i)
|
|
res = datetime.datetime.combine(date, time)
|
|
if res not in poslist:
|
|
poslist.append(res)
|
|
poslist.sort()
|
|
for res in poslist:
|
|
if until and res > until:
|
|
self._len = total
|
|
return
|
|
elif res >= self._dtstart:
|
|
total += 1
|
|
yield res
|
|
if count:
|
|
count -= 1
|
|
if not count:
|
|
self._len = total
|
|
return
|
|
else:
|
|
for i in dayset[start:end]:
|
|
if i is not None:
|
|
date = datetime.date.fromordinal(ii.yearordinal+i)
|
|
for time in timeset:
|
|
res = datetime.datetime.combine(date, time)
|
|
if until and res > until:
|
|
self._len = total
|
|
return
|
|
elif res >= self._dtstart:
|
|
total += 1
|
|
yield res
|
|
if count:
|
|
count -= 1
|
|
if not count:
|
|
self._len = total
|
|
return
|
|
|
|
# Handle frequency and interval
|
|
fixday = False
|
|
if freq == YEARLY:
|
|
year += interval
|
|
if year > datetime.MAXYEAR:
|
|
self._len = total
|
|
return
|
|
ii.rebuild(year, month)
|
|
elif freq == MONTHLY:
|
|
month += interval
|
|
if month > 12:
|
|
div, mod = divmod(month, 12)
|
|
month = mod
|
|
year += div
|
|
if month == 0:
|
|
month = 12
|
|
year -= 1
|
|
if year > datetime.MAXYEAR:
|
|
self._len = total
|
|
return
|
|
ii.rebuild(year, month)
|
|
elif freq == WEEKLY:
|
|
if wkst > weekday:
|
|
day += -(weekday+1+(6-wkst))+self._interval*7
|
|
else:
|
|
day += -(weekday-wkst)+self._interval*7
|
|
weekday = wkst
|
|
fixday = True
|
|
elif freq == DAILY:
|
|
day += interval
|
|
fixday = True
|
|
elif freq == HOURLY:
|
|
if filtered:
|
|
# Jump to one iteration before next day
|
|
hour += ((23-hour)//interval)*interval
|
|
while True:
|
|
hour += interval
|
|
div, mod = divmod(hour, 24)
|
|
if div:
|
|
hour = mod
|
|
day += div
|
|
fixday = True
|
|
if not byhour or hour in byhour:
|
|
break
|
|
timeset = gettimeset(hour, minute, second)
|
|
elif freq == MINUTELY:
|
|
if filtered:
|
|
# Jump to one iteration before next day
|
|
minute += ((1439-(hour*60+minute))//interval)*interval
|
|
while True:
|
|
minute += interval
|
|
div, mod = divmod(minute, 60)
|
|
if div:
|
|
minute = mod
|
|
hour += div
|
|
div, mod = divmod(hour, 24)
|
|
if div:
|
|
hour = mod
|
|
day += div
|
|
fixday = True
|
|
filtered = False
|
|
if ((not byhour or hour in byhour) and
|
|
(not byminute or minute in byminute)):
|
|
break
|
|
timeset = gettimeset(hour, minute, second)
|
|
elif freq == SECONDLY:
|
|
if filtered:
|
|
# Jump to one iteration before next day
|
|
second += (((86399-(hour*3600+minute*60+second))
|
|
//interval)*interval)
|
|
while True:
|
|
second += self._interval
|
|
div, mod = divmod(second, 60)
|
|
if div:
|
|
second = mod
|
|
minute += div
|
|
div, mod = divmod(minute, 60)
|
|
if div:
|
|
minute = mod
|
|
hour += div
|
|
div, mod = divmod(hour, 24)
|
|
if div:
|
|
hour = mod
|
|
day += div
|
|
fixday = True
|
|
if ((not byhour or hour in byhour) and
|
|
(not byminute or minute in byminute) and
|
|
(not bysecond or second in bysecond)):
|
|
break
|
|
timeset = gettimeset(hour, minute, second)
|
|
|
|
if fixday and day > 28:
|
|
daysinmonth = calendar.monthrange(year, month)[1]
|
|
if day > daysinmonth:
|
|
while day > daysinmonth:
|
|
day -= daysinmonth
|
|
month += 1
|
|
if month == 13:
|
|
month = 1
|
|
year += 1
|
|
if year > datetime.MAXYEAR:
|
|
self._len = total
|
|
return
|
|
daysinmonth = calendar.monthrange(year, month)[1]
|
|
ii.rebuild(year, month)
|
|
|
|
class _iterinfo(object):
|
|
__slots__ = ["rrule", "lastyear", "lastmonth",
|
|
"yearlen", "nextyearlen", "yearordinal", "yearweekday",
|
|
"mmask", "mrange", "mdaymask", "nmdaymask",
|
|
"wdaymask", "wnomask", "nwdaymask", "eastermask"]
|
|
|
|
def __init__(self, rrule):
|
|
for attr in self.__slots__:
|
|
setattr(self, attr, None)
|
|
self.rrule = rrule
|
|
|
|
def rebuild(self, year, month):
|
|
# Every mask is 7 days longer to handle cross-year weekly periods.
|
|
rr = self.rrule
|
|
if year != self.lastyear:
|
|
self.yearlen = 365+calendar.isleap(year)
|
|
self.nextyearlen = 365+calendar.isleap(year+1)
|
|
firstyday = datetime.date(year, 1, 1)
|
|
self.yearordinal = firstyday.toordinal()
|
|
self.yearweekday = firstyday.weekday()
|
|
|
|
wday = datetime.date(year, 1, 1).weekday()
|
|
if self.yearlen == 365:
|
|
self.mmask = M365MASK
|
|
self.mdaymask = MDAY365MASK
|
|
self.nmdaymask = NMDAY365MASK
|
|
self.wdaymask = WDAYMASK[wday:]
|
|
self.mrange = M365RANGE
|
|
else:
|
|
self.mmask = M366MASK
|
|
self.mdaymask = MDAY366MASK
|
|
self.nmdaymask = NMDAY366MASK
|
|
self.wdaymask = WDAYMASK[wday:]
|
|
self.mrange = M366RANGE
|
|
|
|
if not rr._byweekno:
|
|
self.wnomask = None
|
|
else:
|
|
self.wnomask = [0]*(self.yearlen+7)
|
|
#no1wkst = firstwkst = self.wdaymask.index(rr._wkst)
|
|
no1wkst = firstwkst = (7-self.yearweekday+rr._wkst)%7
|
|
if no1wkst >= 4:
|
|
no1wkst = 0
|
|
# Number of days in the year, plus the days we got
|
|
# from last year.
|
|
wyearlen = self.yearlen+(self.yearweekday-rr._wkst)%7
|
|
else:
|
|
# Number of days in the year, minus the days we
|
|
# left in last year.
|
|
wyearlen = self.yearlen-no1wkst
|
|
div, mod = divmod(wyearlen, 7)
|
|
numweeks = div+mod//4
|
|
for n in rr._byweekno:
|
|
if n < 0:
|
|
n += numweeks+1
|
|
if not (0 < n <= numweeks):
|
|
continue
|
|
if n > 1:
|
|
i = no1wkst+(n-1)*7
|
|
if no1wkst != firstwkst:
|
|
i -= 7-firstwkst
|
|
else:
|
|
i = no1wkst
|
|
for j in range(7):
|
|
self.wnomask[i] = 1
|
|
i += 1
|
|
if self.wdaymask[i] == rr._wkst:
|
|
break
|
|
if 1 in rr._byweekno:
|
|
# Check week number 1 of next year as well
|
|
# TODO: Check -numweeks for next year.
|
|
i = no1wkst+numweeks*7
|
|
if no1wkst != firstwkst:
|
|
i -= 7-firstwkst
|
|
if i < self.yearlen:
|
|
# If week starts in next year, we
|
|
# don't care about it.
|
|
for j in range(7):
|
|
self.wnomask[i] = 1
|
|
i += 1
|
|
if self.wdaymask[i] == rr._wkst:
|
|
break
|
|
if no1wkst:
|
|
# Check last week number of last year as
|
|
# well. If no1wkst is 0, either the year
|
|
# started on week start, or week number 1
|
|
# got days from last year, so there are no
|
|
# days from last year's last week number in
|
|
# this year.
|
|
if -1 not in rr._byweekno:
|
|
lyearweekday = datetime.date(year-1,1,1).weekday()
|
|
lno1wkst = (7-lyearweekday+rr._wkst)%7
|
|
lyearlen = 365+calendar.isleap(year-1)
|
|
if lno1wkst >= 4:
|
|
lno1wkst = 0
|
|
lnumweeks = 52+(lyearlen+
|
|
(lyearweekday-rr._wkst)%7)%7//4
|
|
else:
|
|
lnumweeks = 52+(self.yearlen-no1wkst)%7//4
|
|
else:
|
|
lnumweeks = -1
|
|
if lnumweeks in rr._byweekno:
|
|
for i in range(no1wkst):
|
|
self.wnomask[i] = 1
|
|
|
|
if (rr._bynweekday and
|
|
(month != self.lastmonth or year != self.lastyear)):
|
|
ranges = []
|
|
if rr._freq == YEARLY:
|
|
if rr._bymonth:
|
|
for month in rr._bymonth:
|
|
ranges.append(self.mrange[month-1:month+1])
|
|
else:
|
|
ranges = [(0, self.yearlen)]
|
|
elif rr._freq == MONTHLY:
|
|
ranges = [self.mrange[month-1:month+1]]
|
|
if ranges:
|
|
# Weekly frequency won't get here, so we may not
|
|
# care about cross-year weekly periods.
|
|
self.nwdaymask = [0]*self.yearlen
|
|
for first, last in ranges:
|
|
last -= 1
|
|
for wday, n in rr._bynweekday:
|
|
if n < 0:
|
|
i = last+(n+1)*7
|
|
i -= (self.wdaymask[i]-wday)%7
|
|
else:
|
|
i = first+(n-1)*7
|
|
i += (7-self.wdaymask[i]+wday)%7
|
|
if first <= i <= last:
|
|
self.nwdaymask[i] = 1
|
|
|
|
if rr._byeaster:
|
|
self.eastermask = [0]*(self.yearlen+7)
|
|
eyday = easter.easter(year).toordinal()-self.yearordinal
|
|
for offset in rr._byeaster:
|
|
self.eastermask[eyday+offset] = 1
|
|
|
|
self.lastyear = year
|
|
self.lastmonth = month
|
|
|
|
def ydayset(self, year, month, day):
|
|
return range(self.yearlen), 0, self.yearlen
|
|
|
|
def mdayset(self, year, month, day):
|
|
set = [None]*self.yearlen
|
|
start, end = self.mrange[month-1:month+1]
|
|
for i in range(start, end):
|
|
set[i] = i
|
|
return set, start, end
|
|
|
|
def wdayset(self, year, month, day):
|
|
# We need to handle cross-year weeks here.
|
|
set = [None]*(self.yearlen+7)
|
|
i = datetime.date(year, month, day).toordinal()-self.yearordinal
|
|
start = i
|
|
for j in range(7):
|
|
set[i] = i
|
|
i += 1
|
|
#if (not (0 <= i < self.yearlen) or
|
|
# self.wdaymask[i] == self.rrule._wkst):
|
|
# This will cross the year boundary, if necessary.
|
|
if self.wdaymask[i] == self.rrule._wkst:
|
|
break
|
|
return set, start, i
|
|
|
|
def ddayset(self, year, month, day):
|
|
set = [None]*self.yearlen
|
|
i = datetime.date(year, month, day).toordinal()-self.yearordinal
|
|
set[i] = i
|
|
return set, i, i+1
|
|
|
|
def htimeset(self, hour, minute, second):
|
|
set = []
|
|
rr = self.rrule
|
|
for minute in rr._byminute:
|
|
for second in rr._bysecond:
|
|
set.append(datetime.time(hour, minute, second,
|
|
tzinfo=rr._tzinfo))
|
|
set.sort()
|
|
return set
|
|
|
|
def mtimeset(self, hour, minute, second):
|
|
set = []
|
|
rr = self.rrule
|
|
for second in rr._bysecond:
|
|
set.append(datetime.time(hour, minute, second, tzinfo=rr._tzinfo))
|
|
set.sort()
|
|
return set
|
|
|
|
def stimeset(self, hour, minute, second):
|
|
return (datetime.time(hour, minute, second,
|
|
tzinfo=self.rrule._tzinfo),)
|
|
|
|
|
|
class rruleset(rrulebase):
|
|
|
|
class _genitem:
|
|
def __init__(self, genlist, gen):
|
|
try:
|
|
self.dt = gen()
|
|
genlist.append(self)
|
|
except StopIteration:
|
|
pass
|
|
self.genlist = genlist
|
|
self.gen = gen
|
|
|
|
def next(self):
|
|
try:
|
|
self.dt = self.gen()
|
|
except StopIteration:
|
|
self.genlist.remove(self)
|
|
|
|
def __cmp__(self, other):
|
|
return cmp(self.dt, other.dt)
|
|
|
|
def __init__(self, cache=False):
|
|
rrulebase.__init__(self, cache)
|
|
self._rrule = []
|
|
self._rdate = []
|
|
self._exrule = []
|
|
self._exdate = []
|
|
|
|
def rrule(self, rrule):
|
|
self._rrule.append(rrule)
|
|
|
|
def rdate(self, rdate):
|
|
self._rdate.append(rdate)
|
|
|
|
def exrule(self, exrule):
|
|
self._exrule.append(exrule)
|
|
|
|
def exdate(self, exdate):
|
|
self._exdate.append(exdate)
|
|
|
|
def _iter(self):
|
|
rlist = []
|
|
self._rdate.sort()
|
|
self._genitem(rlist, iter(self._rdate).next)
|
|
for gen in [iter(x).next for x in self._rrule]:
|
|
self._genitem(rlist, gen)
|
|
rlist.sort()
|
|
exlist = []
|
|
self._exdate.sort()
|
|
self._genitem(exlist, iter(self._exdate).next)
|
|
for gen in [iter(x).next for x in self._exrule]:
|
|
self._genitem(exlist, gen)
|
|
exlist.sort()
|
|
lastdt = None
|
|
total = 0
|
|
while rlist:
|
|
ritem = rlist[0]
|
|
if not lastdt or lastdt != ritem.dt:
|
|
while exlist and exlist[0] < ritem:
|
|
exlist[0].next()
|
|
exlist.sort()
|
|
if not exlist or ritem != exlist[0]:
|
|
total += 1
|
|
yield ritem.dt
|
|
lastdt = ritem.dt
|
|
ritem.next()
|
|
rlist.sort()
|
|
self._len = total
|
|
|
|
class _rrulestr:
|
|
|
|
_freq_map = {"YEARLY": YEARLY,
|
|
"MONTHLY": MONTHLY,
|
|
"WEEKLY": WEEKLY,
|
|
"DAILY": DAILY,
|
|
"HOURLY": HOURLY,
|
|
"MINUTELY": MINUTELY,
|
|
"SECONDLY": SECONDLY}
|
|
|
|
_weekday_map = {"MO":0,"TU":1,"WE":2,"TH":3,"FR":4,"SA":5,"SU":6}
|
|
|
|
def _handle_int(self, rrkwargs, name, value, **kwargs):
|
|
rrkwargs[name.lower()] = int(value)
|
|
|
|
def _handle_int_list(self, rrkwargs, name, value, **kwargs):
|
|
rrkwargs[name.lower()] = [int(x) for x in value.split(',')]
|
|
|
|
_handle_INTERVAL = _handle_int
|
|
_handle_COUNT = _handle_int
|
|
_handle_BYSETPOS = _handle_int_list
|
|
_handle_BYMONTH = _handle_int_list
|
|
_handle_BYMONTHDAY = _handle_int_list
|
|
_handle_BYYEARDAY = _handle_int_list
|
|
_handle_BYEASTER = _handle_int_list
|
|
_handle_BYWEEKNO = _handle_int_list
|
|
_handle_BYHOUR = _handle_int_list
|
|
_handle_BYMINUTE = _handle_int_list
|
|
_handle_BYSECOND = _handle_int_list
|
|
|
|
def _handle_FREQ(self, rrkwargs, name, value, **kwargs):
|
|
rrkwargs["freq"] = self._freq_map[value]
|
|
|
|
def _handle_UNTIL(self, rrkwargs, name, value, **kwargs):
|
|
global parser
|
|
if not parser:
|
|
from dateutil import parser
|
|
try:
|
|
rrkwargs["until"] = parser.parse(value,
|
|
ignoretz=kwargs.get("ignoretz"),
|
|
tzinfos=kwargs.get("tzinfos"))
|
|
except ValueError:
|
|
raise ValueError, "invalid until date"
|
|
|
|
def _handle_WKST(self, rrkwargs, name, value, **kwargs):
|
|
rrkwargs["wkst"] = self._weekday_map[value]
|
|
|
|
def _handle_BYWEEKDAY(self, rrkwargs, name, value, **kwarsg):
|
|
l = []
|
|
for wday in value.split(','):
|
|
for i in range(len(wday)):
|
|
if wday[i] not in '+-0123456789':
|
|
break
|
|
n = wday[:i] or None
|
|
w = wday[i:]
|
|
if n: n = int(n)
|
|
l.append(weekdays[self._weekday_map[w]](n))
|
|
rrkwargs["byweekday"] = l
|
|
|
|
_handle_BYDAY = _handle_BYWEEKDAY
|
|
|
|
def _parse_rfc_rrule(self, line,
|
|
dtstart=None,
|
|
cache=False,
|
|
ignoretz=False,
|
|
tzinfos=None):
|
|
if line.find(':') != -1:
|
|
name, value = line.split(':')
|
|
if name != "RRULE":
|
|
raise ValueError, "unknown parameter name"
|
|
else:
|
|
value = line
|
|
rrkwargs = {}
|
|
for pair in value.split(';'):
|
|
name, value = pair.split('=')
|
|
name = name.upper()
|
|
value = value.upper()
|
|
try:
|
|
getattr(self, "_handle_"+name)(rrkwargs, name, value,
|
|
ignoretz=ignoretz,
|
|
tzinfos=tzinfos)
|
|
except AttributeError:
|
|
raise ValueError, "unknown parameter '%s'" % name
|
|
except (KeyError, ValueError):
|
|
raise ValueError, "invalid '%s': %s" % (name, value)
|
|
return rrule(dtstart=dtstart, cache=cache, **rrkwargs)
|
|
|
|
def _parse_rfc(self, s,
|
|
dtstart=None,
|
|
cache=False,
|
|
unfold=False,
|
|
forceset=False,
|
|
compatible=False,
|
|
ignoretz=False,
|
|
tzinfos=None):
|
|
global parser
|
|
if compatible:
|
|
forceset = True
|
|
unfold = True
|
|
s = s.upper()
|
|
if not s.strip():
|
|
raise ValueError, "empty string"
|
|
if unfold:
|
|
lines = s.splitlines()
|
|
i = 0
|
|
while i < len(lines):
|
|
line = lines[i].rstrip()
|
|
if not line:
|
|
del lines[i]
|
|
elif i > 0 and line[0] == " ":
|
|
lines[i-1] += line[1:]
|
|
del lines[i]
|
|
else:
|
|
i += 1
|
|
else:
|
|
lines = s.split()
|
|
if (not forceset and len(lines) == 1 and
|
|
(s.find(':') == -1 or s.startswith('RRULE:'))):
|
|
return self._parse_rfc_rrule(lines[0], cache=cache,
|
|
dtstart=dtstart, ignoretz=ignoretz,
|
|
tzinfos=tzinfos)
|
|
else:
|
|
rrulevals = []
|
|
rdatevals = []
|
|
exrulevals = []
|
|
exdatevals = []
|
|
for line in lines:
|
|
if not line:
|
|
continue
|
|
if line.find(':') == -1:
|
|
name = "RRULE"
|
|
value = line
|
|
else:
|
|
name, value = line.split(':', 1)
|
|
parms = name.split(';')
|
|
if not parms:
|
|
raise ValueError, "empty property name"
|
|
name = parms[0]
|
|
parms = parms[1:]
|
|
if name == "RRULE":
|
|
for parm in parms:
|
|
raise ValueError, "unsupported RRULE parm: "+parm
|
|
rrulevals.append(value)
|
|
elif name == "RDATE":
|
|
for parm in parms:
|
|
if parm != "VALUE=DATE-TIME":
|
|
raise ValueError, "unsupported RDATE parm: "+parm
|
|
rdatevals.append(value)
|
|
elif name == "EXRULE":
|
|
for parm in parms:
|
|
raise ValueError, "unsupported EXRULE parm: "+parm
|
|
exrulevals.append(value)
|
|
elif name == "EXDATE":
|
|
for parm in parms:
|
|
if parm != "VALUE=DATE-TIME":
|
|
raise ValueError, "unsupported RDATE parm: "+parm
|
|
exdatevals.append(value)
|
|
elif name == "DTSTART":
|
|
for parm in parms:
|
|
raise ValueError, "unsupported DTSTART parm: "+parm
|
|
if not parser:
|
|
from dateutil import parser
|
|
dtstart = parser.parse(value, ignoretz=ignoretz,
|
|
tzinfos=tzinfos)
|
|
else:
|
|
raise ValueError, "unsupported property: "+name
|
|
if (forceset or len(rrulevals) > 1 or
|
|
rdatevals or exrulevals or exdatevals):
|
|
if not parser and (rdatevals or exdatevals):
|
|
from dateutil import parser
|
|
set = rruleset(cache=cache)
|
|
for value in rrulevals:
|
|
set.rrule(self._parse_rfc_rrule(value, dtstart=dtstart,
|
|
ignoretz=ignoretz,
|
|
tzinfos=tzinfos))
|
|
for value in rdatevals:
|
|
for datestr in value.split(','):
|
|
set.rdate(parser.parse(datestr,
|
|
ignoretz=ignoretz,
|
|
tzinfos=tzinfos))
|
|
for value in exrulevals:
|
|
set.exrule(self._parse_rfc_rrule(value, dtstart=dtstart,
|
|
ignoretz=ignoretz,
|
|
tzinfos=tzinfos))
|
|
for value in exdatevals:
|
|
for datestr in value.split(','):
|
|
set.exdate(parser.parse(datestr,
|
|
ignoretz=ignoretz,
|
|
tzinfos=tzinfos))
|
|
if compatible and dtstart:
|
|
set.rdate(dtstart)
|
|
return set
|
|
else:
|
|
return self._parse_rfc_rrule(rrulevals[0],
|
|
dtstart=dtstart,
|
|
cache=cache,
|
|
ignoretz=ignoretz,
|
|
tzinfos=tzinfos)
|
|
|
|
def __call__(self, s, **kwargs):
|
|
return self._parse_rfc(s, **kwargs)
|
|
|
|
rrulestr = _rrulestr()
|
|
|
|
# vim:ts=4:sw=4:et
|