def parse_jewish_date(string):
match = re.match(pattern=r'^(?P<day>\d{1,2})[-\/,\.](?P<month>\d{1,2})[-\/,\.](?P<year>\d{4})$', string=string)
if not match:
raise argparse.ArgumentTypeError("%r is not a valid jewish date" % string)
else:
try:
return JDate(year=int(match.group('year')),
month=int(match.group('month')),
day=int(match.group('day')))
except ValueError as ve:
msg = '"{}" is not a valid jewish date as {}'.format(string, ve)
raise argparse.ArgumentTypeError(msg)
def julian_to_jdate(julian_date):
julian_date = trunc(julian_date) + 0.5
count = trunc(((julian_date - EPOCH_JDATE) * 98496.0) / 35975351.0)
year = count - 1
i = count
while julian_date >= jdate_to_julian(JDate(i, 7, 1)):
i += 1
year += 1
if julian_date < jdate_to_julian(JDate(year, 1, 1)):
first = 7
else:
first = 1
month = i = first
while julian_date > jdate_to_julian(
JDate(year, i, JDate.days_in_jmonth(year, i))):
i += 1
month += 1
day = int(julian_date - jdate_to_julian(JDate(year, month, 1))) + 1
return JDate(year, month, day)
def itermonthdates(year, month):
"""
Return an iterator for one month. The iterator will yield datetime.date
values and will always iterate through complete weeks, so it will yield
dates outside the specified month.
"""
date = JDate(year, month, 1)
# Go back to the beginning of the week
days = date.getdow() % 7
date -= days
oneday = 1
while True:
yield date
try:
date += oneday
except OverflowError:
# Adding one day could fail after datetime.MAXYEAR
break
if date.month != month and date.getdow() == 0:
break
def weekday(year, mnth, day):
"""Return weekday (0-6 ~ Sun-Shabbos) for year (5776-...), month (1-12), day (1-30)."""
return JDate(year, mnth, day).getdow()
def ellul(jd, israel):
praklist = ()
jyear = jd.year
jday = jd.day
# The first day of Ellul.
# The year/month/day/ordinal constructor is used for efficiency.
day1 = JDate(jyear, 6, 1, jd.ordinal - jd.day + 1)
day1dow = day1.getdow()
shabbos1day = 1 if day1dow == 6 else ((6 - (day1dow + 6) % 6) + 1)
shabbos1date = JDate(jyear, 6, shabbos1day, day1.ordinal + shabbos1day - 1)
# Which shabbos in Ellul are we working out now?
cshb = 1 if jday == shabbos1day else int((jday - shabbos1day) / 7) + 1
perek1 = get_first_perek(shabbos1date, israel)
if perek1 == 1:
if cshb == 1:
praklist = 1,
elif cshb == 2:
praklist = 2,
elif cshb == 3:
praklist = 3, 4
elif cshb == 4:
praklist = 5, 6
elif perek1 == 2:
if cshb == 1:
praklist = 2,
elif cshb == 2:
praklist = 3,
elif cshb == 3:
praklist = 4,
elif cshb == 4:
praklist = 5, 6
elif perek1 == 3:
if cshb == 1:
praklist = 3,
elif cshb == 2:
praklist = 4,
elif cshb == 3:
praklist = 5,
elif cshb == 4:
praklist = 6,
elif perek1 == 4:
# This can only happen in Chutz La'aretz
if cshb == 1:
praklist = 4, 5
elif cshb == 2:
praklist = 6, 1
elif cshb == 3:
praklist = 2, 3
elif cshb == 4:
praklist = 4, 5, 6
elif perek1 == 5:
if cshb == 1:
praklist = 5, 6
elif cshb == 2:
praklist = 1, 2
elif cshb == 3:
praklist = 3, 4
elif cshb == 4:
praklist = 5, 6
elif perek1 == 6:
if cshb == 1:
praklist = 6,
elif cshb == 2:
praklist = 1, 2
elif cshb == 3:
praklist = 3, 4
elif cshb == 4:
praklist = 5, 6
return praklist