def test_parse_date_badstr(self):
testtuples = ('W53', '2004-W', '2014-01-230', '2014-012-23',
'201-01-23', '201401230', '201401', 'bad', '')
for testtuple in testtuples:
with self.assertRaises(ISOFormatError):
parse_date(testtuple, builder=None)
def _parse_interval(isointervalstr,
builder,
intervaldelimiter='/',
datetimedelimiter='T'):
#Returns a tuple containing the start of the interval, the end of the
#interval, and or the interval duration
firstpart, secondpart = isointervalstr.split(intervaldelimiter)
if len(firstpart) == 0 or len(secondpart) == 0:
raise ISOFormatError(
'{0} is not a valid ISO 8601 interval'.format(isointervalstr))
if firstpart[0] == 'P':
#<duration>/<end>
#Notice that these are not returned 'in order' (earlier to later), this
#is to maintain consistency with parsing <start>/<end> durations, as
#well as making repeating interval code cleaner. Users who desire
#durations to be in order can use the 'sorted' operator.
duration = parse_duration(firstpart, builder=TupleBuilder)
#We need to figure out if <end> is a date, or a datetime
if secondpart.find(datetimedelimiter) != -1:
#<end> is a datetime
endtuple = parse_datetime(secondpart,
delimiter=datetimedelimiter,
builder=TupleBuilder)
else:
endtuple = parse_date(secondpart, builder=TupleBuilder)
return builder.build_interval(end=endtuple, duration=duration)
elif secondpart[0] == 'P':
#<start>/<duration>
#We need to figure out if <start> is a date, or a datetime
duration = parse_duration(secondpart, builder=TupleBuilder)
if firstpart.find(datetimedelimiter) != -1:
#<start> is a datetime
starttuple = parse_datetime(firstpart,
delimiter=datetimedelimiter,
builder=TupleBuilder)
else:
#<start> must just be a date
starttuple = parse_date(firstpart, builder=TupleBuilder)
return builder.build_interval(start=starttuple, duration=duration)
#<start>/<end>
if firstpart.find(datetimedelimiter) != -1:
#Both parts are datetimes
starttuple = parse_datetime(firstpart,
delimiter=datetimedelimiter,
builder=TupleBuilder)
else:
starttuple = parse_date(firstpart, builder=TupleBuilder)
endtuple = _parse_interval_end(secondpart, starttuple, datetimedelimiter)
return builder.build_interval(start=starttuple, end=endtuple)
def test_parse_date(self):
testtuples = (
("2013", {"YYYY": "2013"}),
("0001", {"YYYY": "0001"}),
("19", {"YYYY": "19"}),
("1981-04-05", {"YYYY": "1981", "MM": "04", "DD": "05"}),
("19810405", {"YYYY": "1981", "MM": "04", "DD": "05"}),
("1981-04", {"YYYY": "1981", "MM": "04"}),
("2004-W53", {"YYYY": "2004", "Www": "53"}),
("2009-W01", {"YYYY": "2009", "Www": "01"}),
("2004-W53-6", {"YYYY": "2004", "Www": "53", "D": "6"}),
("2004W53", {"YYYY": "2004", "Www": "53"}),
("2004W536", {"YYYY": "2004", "Www": "53", "D": "6"}),
("1981-095", {"YYYY": "1981", "DDD": "095"}),
("1981095", {"YYYY": "1981", "DDD": "095"}),
)
for testtuple in testtuples:
with mock.patch.object(
aniso8601.date.PythonTimeBuilder, "build_date"
) as mockBuildDate:
mockBuildDate.return_value = testtuple[1]
result = parse_date(testtuple[0])
self.assertEqual(result, testtuple[1])
mockBuildDate.assert_called_once_with(**testtuple[1])
def _parse_duration_combined(durationstr, relative):
#Period of the form P<date>T<time>
#Split the string in to its component parts
datepart, timepart = durationstr[1:].split('T') #We skip the 'P'
datevalue = parse_date(datepart)
timevalue = parse_time(timepart)
if relative is True:
try:
import dateutil.relativedelta
return dateutil.relativedelta.relativedelta(
years=datevalue.year,
months=datevalue.month,
days=datevalue.day,
hours=timevalue.hour,
minutes=timevalue.minute,
seconds=timevalue.second,
microseconds=timevalue.microsecond)
except ImportError:
raise RuntimeError(
'dateutil must be installed for relative duration support.')
else:
totaldays = datevalue.year * 365 + datevalue.month * 30 + datevalue.day
return datetime.timedelta(days=totaldays,
hours=timevalue.hour,
minutes=timevalue.minute,
seconds=timevalue.second,
microseconds=timevalue.microsecond)
def test_parse_date_badstr(self):
testtuples = (
"W53",
"2004-W",
"2014-01-230",
"2014-012-23",
"201-01-23",
"201401230",
"201401",
"9999 W53",
"20.50230",
"198104",
"bad",
"",
)
for testtuple in testtuples:
with self.assertRaises(ISOFormatError):
parse_date(testtuple, builder=None)
def test_parse_date_mockbuilder(self):
mockBuilder = mock.Mock()
expectedargs = {"YYYY": "1981", "MM": "04", "DD": "05"}
mockBuilder.build_date.return_value = expectedargs
result = parse_date("1981-04-05", builder=mockBuilder)
self.assertEqual(result, expectedargs)
mockBuilder.build_date.assert_called_once_with(**expectedargs)
def test_parse_date_mockbuilder(self):
mockBuilder = mock.Mock()
expectedargs = {'YYYY': '1981', 'MM': '04', 'DD': '05'}
mockBuilder.build_date.return_value = expectedargs
result = parse_date('1981-04-05', builder=mockBuilder)
self.assertEqual(result, expectedargs)
mockBuilder.build_date.assert_called_once_with(**expectedargs)
def _parse_duration_combined(durationstr, builder):
#Period of the form P<date>T<time>
#Split the string in to its component parts
datepart, timepart = durationstr[1:].split('T') #We skip the 'P'
datevalue = parse_date(datepart, builder=TupleBuilder)
timevalue = parse_time(timepart, builder=TupleBuilder)
return builder.build_duration(PnY=datevalue[0], PnM=datevalue[1],
PnD=datevalue[2], TnH=timevalue[0],
TnM=timevalue[1], TnS=timevalue[2])
def _parse_duration_combined(durationstr):
#Period of the form P<date>T<time>
#Split the string in to its component parts
datepart, timepart = durationstr[1:].split('T') #We skip the 'P'
datevalue = parse_date(datepart)
timevalue = parse_time(timepart)
totaldays = datevalue.year * 365 + datevalue.month * 30 + datevalue.day
return datetime.timedelta(days=totaldays, hours=timevalue.hour, minutes=timevalue.minute, seconds=timevalue.second, microseconds=timevalue.microsecond)
def _parse_duration_combined(durationstr, builder):
#Period of the form P<date>T<time>
#Split the string in to its component parts
datepart, timepart = durationstr[1:].split('T') #We skip the 'P'
datevalue = parse_date(datepart, builder=TupleBuilder)
timevalue = parse_time(timepart, builder=TupleBuilder)
return builder.build_duration(PnY=datevalue[0], PnM=datevalue[1],
PnD=datevalue[2], TnH=timevalue[0],
TnM=timevalue[1], TnS=timevalue[2])
def test_parse_date(self):
testtuples = (('2013', {
'YYYY': '2013'
}), ('0001', {
'YYYY': '0001'
}), ('19', {
'YYYY': '19'
}), ('1981-04-05', {
'YYYY': '1981',
'MM': '04',
'DD': '05'
}), ('19810405', {
'YYYY': '1981',
'MM': '04',
'DD': '05'
}), ('1981-04', {
'YYYY': '1981',
'MM': '04'
}), ('2004-W53', {
'YYYY': '2004',
'Www': '53'
}), ('2009-W01', {
'YYYY': '2009',
'Www': '01'
}), ('2004-W53-6', {
'YYYY': '2004',
'Www': '53',
'D': '6'
}), ('2004W53', {
'YYYY': '2004',
'Www': '53'
}), ('2004W536', {
'YYYY': '2004',
'Www': '53',
'D': '6'
}), ('1981-095', {
'YYYY': '1981',
'DDD': '095'
}), ('1981095', {
'YYYY': '1981',
'DDD': '095'
}))
for testtuple in testtuples:
with mock.patch.object(aniso8601.builder.PythonTimeBuilder,
'build_date') as mockBuildDate:
mockBuildDate.return_value = testtuple[1]
result = parse_date(testtuple[0])
self.assertEqual(result, testtuple[1])
mockBuildDate.assert_called_once_with(**testtuple[1])
def parse_datetime(isodatetimestr, delimiter='T'):
#Given a string in ISO 8601 date time format, return a datetime.datetime
#object that corresponds to the given date time.
#By default, the ISO 8601 specified T delimiter is used to split the
#date and time (<date>T<time>). Fixed offset tzdata will be included
#if UTC offset is given in the input string.
isodatestr, isotimestr = isodatetimestr.split(delimiter)
datepart = parse_date(isodatestr)
timepart = parse_time(isotimestr)
return datetime.datetime.combine(datepart, timepart)
def parse_datetime(isodatetimestr, delimiter='T'):
#Given a string in ISO 8601 date time format, return a datetime.datetime
#object that corresponds to the given date time.
#By default, the ISO 8601 specified T delimiter is used to split the
#date and time (<date>T<time>). Fixed offset tzdata will be included
#if UTC offset is given in the input string.
isodatestr, isotimestr = isodatetimestr.split(delimiter)
datepart = parse_date(isodatestr)
timepart = parse_time(isotimestr)
return datetime.datetime.combine(datepart, timepart)
def _parse_duration_combined(durationstr):
#Period of the form P<date>T<time>
#Split the string in to its component parts
datepart, timepart = durationstr[1:].split('T') #We skip the 'P'
datevalue = parse_date(datepart)
timevalue = parse_time(timepart)
totaldays = datevalue.year * 365 + datevalue.month * 30 + datevalue.day
return datetime.timedelta(days=totaldays,
hours=timevalue.hour,
minutes=timevalue.minute,
seconds=timevalue.second,
microseconds=timevalue.microsecond)
def _parse_duration_combined(durationstr):
#Period of the form P<date>T<time>
#Split the string in to its component parts
datepart, timepart = durationstr[1:].split('T', 1) #We skip the 'P'
datevalue = parse_date(datepart, builder=TupleBuilder)
timevalue = parse_time(timepart, builder=TupleBuilder)
return {
'PnY': datevalue.YYYY,
'PnM': datevalue.MM,
'PnD': datevalue.DD,
'TnH': timevalue.hh,
'TnM': timevalue.mm,
'TnS': timevalue.ss
}
def _parse_duration_combined(durationstr):
# Period of the form P<date>T<time>
# Split the string in to its component parts
datepart, timepart = durationstr[1:].split("T", 1) # We skip the 'P'
datevalue = parse_date(datepart, builder=TupleBuilder)
timevalue = parse_time(timepart, builder=TupleBuilder)
return {
"PnY": datevalue.YYYY,
"PnM": datevalue.MM,
"PnD": datevalue.DD,
"TnH": timevalue.hh,
"TnM": timevalue.mm,
"TnS": timevalue.ss,
}
def parse_datetime(isodatetimestr, delimiter="T", builder=PythonTimeBuilder):
# Given a string in ISO 8601 date time format, return a datetime.datetime
# object that corresponds to the given date time.
# By default, the ISO 8601 specified T delimiter is used to split the
# date and time (<date>T<time>). Fixed offset tzdata will be included
# if UTC offset is given in the input string.
if is_string(isodatetimestr) is False:
raise ValueError("Date time must be string.")
if delimiter not in isodatetimestr:
raise ISOFormatError('Delimiter "{0}" is not in combined date time '
'string "{1}".'.format(delimiter, isodatetimestr))
isodatestr, isotimestr = isodatetimestr.split(delimiter, 1)
datepart = parse_date(isodatestr, builder=TupleBuilder)
timepart = parse_time(isotimestr, builder=TupleBuilder)
return builder.build_datetime(datepart, timepart)
def _parse_duration_combined(durationstr, relative):
#Period of the form P<date>T<time>
#Split the string in to its component parts
datepart, timepart = durationstr[1:].split('T') #We skip the 'P'
datevalue = parse_date(datepart)
timevalue = parse_time(timepart)
if relative is True:
try:
import dateutil.relativedelta
return dateutil.relativedelta.relativedelta(years=datevalue.year, months=datevalue.month, days=datevalue.day, hours=timevalue.hour, minutes=timevalue.minute, seconds=timevalue.second, microseconds=timevalue.microsecond)
except ImportError:
raise RuntimeError('dateutil must be installed for relative duration support.')
else:
totaldays = datevalue.year * 365 + datevalue.month * 30 + datevalue.day
return datetime.timedelta(days=totaldays, hours=timevalue.hour, minutes=timevalue.minute, seconds=timevalue.second, microseconds=timevalue.microsecond)
def parse_interval(isointervalstr,
intervaldelimiter='/',
datetimedelimiter='T',
relative=False):
#Given a string representing an ISO 8601 interval, return a
#tuple of datetime.date or date.datetime objects representing the beginning
#and end of the specified interval. Valid formats are:
#
#<start>/<end>
#<start>/<duration>
#<duration>/<end>
#
#The <start> and <end> values can represent dates, or datetimes,
#not times.
#
#The format:
#
#<duration>
#
#Is expressly not supported as there is no way to provide the addtional
#required context.
firstpart, secondpart = isointervalstr.split(intervaldelimiter)
if firstpart[0] == 'P':
#<duration>/<end>
#Notice that these are not returned 'in order' (earlier to later), this
#is to maintain consistency with parsing <start>/<end> durations, as
#well as making repeating interval code cleaner. Users who desire
#durations to be in order can use the 'sorted' operator.
#We need to figure out if <end> is a date, or a datetime
if secondpart.find(datetimedelimiter) != -1:
#<end> is a datetime
duration = parse_duration(firstpart, relative=relative)
enddatetime = parse_datetime(secondpart,
delimiter=datetimedelimiter)
return (enddatetime, enddatetime - duration)
else:
#<end> must just be a date
duration = parse_duration(firstpart, relative=relative)
enddate = parse_date(secondpart)
#See if we need to upconvert to datetime to preserve resolution
if firstpart.find(datetimedelimiter) != -1:
return (enddate,
datetime.combine(enddate, datetime.min.time()) -
duration)
else:
return (enddate, enddate - duration)
elif secondpart[0] == 'P':
#<start>/<duration>
#We need to figure out if <start> is a date, or a datetime
if firstpart.find(datetimedelimiter) != -1:
#<end> is a datetime
duration = parse_duration(secondpart, relative=relative)
startdatetime = parse_datetime(firstpart,
delimiter=datetimedelimiter)
return (startdatetime, startdatetime + duration)
else:
#<start> must just be a date
duration = parse_duration(secondpart, relative=relative)
startdate = parse_date(firstpart)
#See if we need to upconvert to datetime to preserve resolution
if secondpart.find(datetimedelimiter) != -1:
return (startdate,
datetime.combine(startdate, datetime.min.time()) +
duration)
else:
return (startdate, startdate + duration)
else:
#<start>/<end>
if firstpart.find(datetimedelimiter) != -1 and secondpart.find(
datetimedelimiter) != -1:
#Both parts are datetimes
return (parse_datetime(firstpart, delimiter=datetimedelimiter),
parse_datetime(secondpart, delimiter=datetimedelimiter))
elif firstpart.find(datetimedelimiter) != -1 and secondpart.find(
datetimedelimiter) == -1:
#First part is a datetime, second part is a date
return (parse_datetime(firstpart, delimiter=datetimedelimiter),
parse_date(secondpart))
elif firstpart.find(datetimedelimiter) == -1 and secondpart.find(
datetimedelimiter) != -1:
#First part is a date, second part is a datetime
return (parse_date(firstpart),
parse_datetime(secondpart, delimiter=datetimedelimiter))
else:
#Both parts are dates
return (parse_date(firstpart), parse_date(secondpart))
def test_parse_date(self):
date = parse_date('2013')
self.assertEqual(date.year, 2013)
self.assertEqual(date.month, 1)
self.assertEqual(date.day, 1)
date = parse_date('0001')
self.assertEqual(date.year, 1)
self.assertEqual(date.month, 1)
self.assertEqual(date.day, 1)
date = parse_date('19')
self.assertEqual(date.year, 1900)
self.assertEqual(date.month, 1)
self.assertEqual(date.day, 1)
date = parse_date('1981-04-05')
self.assertEqual(date.year, 1981)
self.assertEqual(date.month, 4)
self.assertEqual(date.day, 5)
date = parse_date('19810405')
self.assertEqual(date.year, 1981)
self.assertEqual(date.month, 4)
self.assertEqual(date.day, 5)
date = parse_date('1981-04')
self.assertEqual(date.year, 1981)
self.assertEqual(date.month, 4)
self.assertEqual(date.day, 1)
date = parse_date('2004-W53')
self.assertEqual(date.year, 2004)
self.assertEqual(date.month, 12)
self.assertEqual(date.weekday(), 0)
date = parse_date('2009-W01')
self.assertEqual(date.year, 2008)
self.assertEqual(date.month, 12)
self.assertEqual(date.weekday(), 0)
date = parse_date('2004-W53-6')
self.assertEqual(date.year, 2005)
self.assertEqual(date.month, 1)
self.assertEqual(date.day, 1)
date = parse_date('2004W53')
self.assertEqual(date.year, 2004)
self.assertEqual(date.month, 12)
self.assertEqual(date.weekday(), 0)
date = parse_date('2004W536')
self.assertEqual(date.year, 2005)
self.assertEqual(date.month, 1)
self.assertEqual(date.day, 1)
date = parse_date('1981-095')
self.assertEqual(date.year, 1981)
self.assertEqual(date.month, 4)
self.assertEqual(date.day, 5)
date = parse_date('1981095')
self.assertEqual(date.year, 1981)
self.assertEqual(date.month, 4)
self.assertEqual(date.day, 5)
def test_parse_date(self):
date = parse_date('2013')
self.assertEqual(date, datetime.date(2013, 1, 1))
date = parse_date('0001')
self.assertEqual(date, datetime.date(1, 1, 1))
date = parse_date('19')
self.assertEqual(date, datetime.date(1900, 1, 1))
date = parse_date('1981-04-05')
self.assertEqual(date, datetime.date(1981, 4, 5))
date = parse_date('19810405')
self.assertEqual(date, datetime.date(1981, 4, 5))
date = parse_date('1981-04')
self.assertEqual(date, datetime.date(1981, 4, 1))
date = parse_date('2004-W53')
self.assertEqual(date, datetime.date(2004, 12, 27))
self.assertEqual(date.weekday(), 0)
date = parse_date('2009-W01')
self.assertEqual(date, datetime.date(2008, 12, 29))
self.assertEqual(date.weekday(), 0)
date = parse_date('2004-W53-6')
self.assertEqual(date, datetime.date(2005, 1, 1))
self.assertEqual(date.weekday(), 5)
date = parse_date('2004W53')
self.assertEqual(date, datetime.date(2004, 12, 27))
self.assertEqual(date.weekday(), 0)
date = parse_date('2004W536')
self.assertEqual(date, datetime.date(2005, 1, 1))
self.assertEqual(date.weekday(), 5)
date = parse_date('1981-095')
self.assertEqual(date, datetime.date(1981, 4, 5))
date = parse_date('1981095')
self.assertEqual(date, datetime.date(1981, 4, 5))
def test_parse_date_badtype(self):
testtuples = (None, 1, False, 1.234)
for testtuple in testtuples:
with self.assertRaises(ValueError):
parse_date(testtuple, builder=None)
def test_parse_date(self):
date = parse_date('2013')
self.assertEqual(date.year, 2013)
self.assertEqual(date.month, 1)
self.assertEqual(date.day, 1)
date = parse_date('0001')
self.assertEqual(date.year, 1)
self.assertEqual(date.month, 1)
self.assertEqual(date.day, 1)
date = parse_date('19')
self.assertEqual(date.year, 1900)
self.assertEqual(date.month, 1)
self.assertEqual(date.day, 1)
date = parse_date('1981-04-05')
self.assertEqual(date.year, 1981)
self.assertEqual(date.month, 4)
self.assertEqual(date.day, 5)
date = parse_date('19810405')
self.assertEqual(date.year, 1981)
self.assertEqual(date.month, 4)
self.assertEqual(date.day, 5)
date = parse_date('1981-04')
self.assertEqual(date.year, 1981)
self.assertEqual(date.month, 4)
self.assertEqual(date.day, 1)
date = parse_date('2004-W53')
self.assertEqual(date.year, 2004)
self.assertEqual(date.month, 12)
self.assertEqual(date.weekday(), 0)
date = parse_date('2009-W01')
self.assertEqual(date.year, 2008)
self.assertEqual(date.month, 12)
self.assertEqual(date.weekday(), 0)
date = parse_date('2004-W53-6')
self.assertEqual(date.year, 2005)
self.assertEqual(date.month, 1)
self.assertEqual(date.day, 1)
date = parse_date('2004W53')
self.assertEqual(date.year, 2004)
self.assertEqual(date.month, 12)
self.assertEqual(date.weekday(), 0)
date = parse_date('2004W536')
self.assertEqual(date.year, 2005)
self.assertEqual(date.month, 1)
self.assertEqual(date.day, 1)
date = parse_date('1981-095')
self.assertEqual(date.year, 1981)
self.assertEqual(date.month, 4)
self.assertEqual(date.day, 5)
date = parse_date('1981095')
self.assertEqual(date.year, 1981)
self.assertEqual(date.month, 4)
self.assertEqual(date.day, 5)
def test_parse_date_bounds(self):
#0 isn't a valid week number
with self.assertRaises(WeekOutOfBoundsError):
parse_date('2003-W00')
with self.assertRaises(WeekOutOfBoundsError):
parse_date('2003W00')
#Week must not be larger than 53
with self.assertRaises(WeekOutOfBoundsError):
parse_date('2004-W54')
with self.assertRaises(WeekOutOfBoundsError):
parse_date('2004W54')
#0 isn't a valid day number
with self.assertRaises(DayOutOfBoundsError):
parse_date('2001-W02-0')
with self.assertRaises(DayOutOfBoundsError):
parse_date('2001W020')
#Day must not be larger than 7
with self.assertRaises(DayOutOfBoundsError):
parse_date('2001-W02-8')
with self.assertRaises(DayOutOfBoundsError):
parse_date('2001W028')
def _parse_interval(
isointervalstr, builder, intervaldelimiter="/", datetimedelimiter="T"
):
# Returns a tuple containing the start of the interval, the end of the
# interval, and or the interval duration
firstpart, secondpart = isointervalstr.split(intervaldelimiter)
if firstpart[0] == "P":
# <duration>/<end>
# Notice that these are not returned 'in order' (earlier to later), this
# is to maintain consistency with parsing <start>/<end> durations, as
# well as making repeating interval code cleaner. Users who desire
# durations to be in order can use the 'sorted' operator.
# We need to figure out if <end> is a date, or a datetime
if secondpart.find(datetimedelimiter) != -1:
# <end> is a datetime
duration = parse_duration(firstpart, builder=TupleBuilder)
enddatetime = parse_datetime(
secondpart, delimiter=datetimedelimiter, builder=TupleBuilder
)
return builder.build_interval(end=enddatetime, duration=duration)
# <end> must just be a date
duration = parse_duration(firstpart, builder=TupleBuilder)
enddate = parse_date(secondpart, builder=TupleBuilder)
return builder.build_interval(end=enddate, duration=duration)
elif secondpart[0] == "P":
# <start>/<duration>
# We need to figure out if <start> is a date, or a datetime
if firstpart.find(datetimedelimiter) != -1:
# <start> is a datetime
duration = parse_duration(secondpart, builder=TupleBuilder)
startdatetime = parse_datetime(
firstpart, delimiter=datetimedelimiter, builder=TupleBuilder
)
return builder.build_interval(start=startdatetime, duration=duration)
# <start> must just be a date
duration = parse_duration(secondpart, builder=TupleBuilder)
startdate = parse_date(firstpart, builder=TupleBuilder)
return builder.build_interval(start=startdate, duration=duration)
# <start>/<end>
if (
firstpart.find(datetimedelimiter) != -1
and secondpart.find(datetimedelimiter) != -1
):
# Both parts are datetimes
start_datetime = parse_datetime(
firstpart, delimiter=datetimedelimiter, builder=TupleBuilder
)
end_datetime = parse_datetime(
secondpart, delimiter=datetimedelimiter, builder=TupleBuilder
)
return builder.build_interval(start=start_datetime, end=end_datetime)
elif (
firstpart.find(datetimedelimiter) != -1
and secondpart.find(datetimedelimiter) == -1
):
# First part is a datetime, second part is a date
start_datetime = parse_datetime(
firstpart, delimiter=datetimedelimiter, builder=TupleBuilder
)
end_date = parse_date(secondpart, builder=TupleBuilder)
return builder.build_interval(start=start_datetime, end=end_date)
elif (
firstpart.find(datetimedelimiter) == -1
and secondpart.find(datetimedelimiter) != -1
):
# First part is a date, second part is a datetime
start_date = parse_date(firstpart, builder=TupleBuilder)
end_datetime = parse_datetime(
secondpart, delimiter=datetimedelimiter, builder=TupleBuilder
)
return builder.build_interval(start=start_date, end=end_datetime)
# Both parts are dates
start_date = parse_date(firstpart, builder=TupleBuilder)
end_date = parse_date(secondpart, builder=TupleBuilder)
return builder.build_interval(start=start_date, end=end_date)
def _parse_interval_parts(isointervalstr,
intervaldelimiter='/',
datetimedelimiter='T',
relative=False):
#Returns a tuple containing the start of the interval, the end of the interval, and the interval timedelta
firstpart, secondpart = isointervalstr.split(intervaldelimiter)
if firstpart[0] == 'P':
#<duration>/<end>
#Notice that these are not returned 'in order' (earlier to later), this
#is to maintain consistency with parsing <start>/<end> durations, as
#well as making repeating interval code cleaner. users_dispatcher who desire
#durations to be in order can use the 'sorted' operator.
#We need to figure out if <end> is a date, or a datetime
if secondpart.find(datetimedelimiter) != -1:
#<end> is a datetime
duration = parse_duration(firstpart, relative=relative)
enddatetime = parse_datetime(secondpart,
delimiter=datetimedelimiter)
return (enddatetime, enddatetime - duration, -duration)
else:
#<end> must just be a date
duration = parse_duration(firstpart, relative=relative)
enddate = parse_date(secondpart)
#See if we need to upconvert to datetime to preserve resolution
if firstpart.find(datetimedelimiter) != -1:
return (enddate,
datetime.combine(enddate, datetime.min.time()) -
duration, -duration)
else:
return (enddate, enddate - duration, -duration)
elif secondpart[0] == 'P':
#<start>/<duration>
#We need to figure out if <start> is a date, or a datetime
if firstpart.find(datetimedelimiter) != -1:
#<start> is a datetime
duration = parse_duration(secondpart, relative=relative)
startdatetime = parse_datetime(firstpart,
delimiter=datetimedelimiter)
return (startdatetime, startdatetime + duration, duration)
else:
#<start> must just be a date
duration = parse_duration(secondpart, relative=relative)
startdate = parse_date(firstpart)
#See if we need to upconvert to datetime to preserve resolution
if secondpart.find(datetimedelimiter) != -1:
return (startdate,
datetime.combine(startdate, datetime.min.time()) +
duration, duration)
else:
return (startdate, startdate + duration, duration)
else:
#<start>/<end>
if firstpart.find(datetimedelimiter) != -1 and secondpart.find(
datetimedelimiter) != -1:
#Both parts are datetimes
start_datetime = parse_datetime(firstpart,
delimiter=datetimedelimiter)
end_datetime = parse_datetime(secondpart,
delimiter=datetimedelimiter)
return (start_datetime, end_datetime,
end_datetime - start_datetime)
elif firstpart.find(datetimedelimiter) != -1 and secondpart.find(
datetimedelimiter) == -1:
#First part is a datetime, second part is a date
start_datetime = parse_datetime(firstpart,
delimiter=datetimedelimiter)
end_date = parse_date(secondpart)
return (start_datetime, end_date,
datetime.combine(end_date, datetime.min.time()) -
start_datetime)
elif firstpart.find(datetimedelimiter) == -1 and secondpart.find(
datetimedelimiter) != -1:
#First part is a date, second part is a datetime
start_date = parse_date(firstpart)
end_datetime = parse_datetime(secondpart,
delimiter=datetimedelimiter)
return (start_date, end_datetime, end_datetime -
datetime.combine(start_date, datetime.min.time()))
else:
#Both parts are dates
start_date = parse_date(firstpart)
end_date = parse_date(secondpart)
return (start_date, end_date, end_date - start_date)
def _parse_interval_parts(isointervalstr, intervaldelimiter='/', datetimedelimiter='T', relative=False):
#Returns a tuple containing the start of the interval, the end of the interval, and the interval timedelta
firstpart, secondpart = isointervalstr.split(intervaldelimiter)
if firstpart[0] == 'P':
#<duration>/<end>
#Notice that these are not returned 'in order' (earlier to later), this
#is to maintain consistency with parsing <start>/<end> durations, as
#well as making repeating interval code cleaner. Users who desire
#durations to be in order can use the 'sorted' operator.
#We need to figure out if <end> is a date, or a datetime
if secondpart.find(datetimedelimiter) != -1:
#<end> is a datetime
duration = parse_duration(firstpart, relative=relative)
enddatetime = parse_datetime(secondpart, delimiter=datetimedelimiter)
return (enddatetime, enddatetime - duration, -duration)
else:
#<end> must just be a date
duration = parse_duration(firstpart, relative=relative)
enddate = parse_date(secondpart)
#See if we need to upconvert to datetime to preserve resolution
if firstpart.find(datetimedelimiter) != -1:
return (enddate, datetime.combine(enddate, datetime.min.time()) - duration, -duration)
else:
return (enddate, enddate - duration, -duration)
elif secondpart[0] == 'P':
#<start>/<duration>
#We need to figure out if <start> is a date, or a datetime
if firstpart.find(datetimedelimiter) != -1:
#<start> is a datetime
duration = parse_duration(secondpart, relative=relative)
startdatetime = parse_datetime(firstpart, delimiter=datetimedelimiter)
return (startdatetime, startdatetime + duration, duration)
else:
#<start> must just be a date
duration = parse_duration(secondpart, relative=relative)
startdate = parse_date(firstpart)
#See if we need to upconvert to datetime to preserve resolution
if secondpart.find(datetimedelimiter) != -1:
return (startdate, datetime.combine(startdate, datetime.min.time()) + duration, duration)
else:
return (startdate, startdate + duration, duration)
else:
#<start>/<end>
if firstpart.find(datetimedelimiter) != -1 and secondpart.find(datetimedelimiter) != -1:
#Both parts are datetimes
start_datetime = parse_datetime(firstpart, delimiter=datetimedelimiter)
end_datetime = parse_datetime(secondpart, delimiter=datetimedelimiter)
return (start_datetime, end_datetime, end_datetime - start_datetime)
elif firstpart.find(datetimedelimiter) != -1 and secondpart.find(datetimedelimiter) == -1:
#First part is a datetime, second part is a date
start_datetime = parse_datetime(firstpart, delimiter=datetimedelimiter)
end_date = parse_date(secondpart)
return (start_datetime, end_date, datetime.combine(end_date, datetime.min.time()) - start_datetime)
elif firstpart.find(datetimedelimiter) == -1 and secondpart.find(datetimedelimiter) != -1:
#First part is a date, second part is a datetime
start_date = parse_date(firstpart)
end_datetime = parse_datetime(secondpart, delimiter=datetimedelimiter)
return (start_date, end_datetime, end_datetime - datetime.combine(start_date, datetime.min.time()))
else:
#Both parts are dates
start_date = parse_date(firstpart)
end_date = parse_date(secondpart)
return (start_date, end_date, end_date - start_date)
def parse_interval(isointervalstr, intervaldelimiter='/', datetimedelimiter='T'):
#Given a string representing an ISO8601 interval, return a
#tuple of datetime.date or date.datetime objects representing the beginning
#and end of the specified interval. Valid formats are:
#
#<start>/<end>
#<start>/<duration>
#<duration>/<end>
#
#The <start> and <end> values can represent dates, or datetimes,
#not times.
#
#The format:
#
#<duration>
#
#Is expressly not supported as there is no way to provide the addtional
#required context.
firstpart, secondpart = isointervalstr.split(intervaldelimiter)
if firstpart[0] == 'P':
#<duration>/<end>
#Notice that these are not returned 'in order' (earlier to later), this
#is to maintain consistency with parsing <start>/<end> durations, as
#well as making repeating interval code cleaner. Users who desire
#durations to be in order can use the 'sorted' operator.
#We need to figure out if <end> is a date, or a datetime
if secondpart.find(datetimedelimiter) != -1:
#<end> is a datetime
duration = parse_duration(firstpart)
enddatetime = parse_datetime(secondpart, delimiter=datetimedelimiter)
return (enddatetime, enddatetime - duration)
else:
#<end> must just be a date
duration = parse_duration(firstpart)
enddate = parse_date(secondpart)
#See if we need to upconvert to datetime to preserve resolution
if firstpart.find(datetimedelimiter) != -1:
return (enddate, datetime.combine(enddate, datetime.min.time()) - duration)
else:
return (enddate, enddate - duration)
elif secondpart[0] == 'P':
#<start>/<duration>
#We need to figure out if <start> is a date, or a datetime
if firstpart.find(datetimedelimiter) != -1:
#<end> is a datetime
duration = parse_duration(secondpart)
startdatetime = parse_datetime(firstpart, delimiter=datetimedelimiter)
return (startdatetime, startdatetime + duration)
else:
#<start> must just be a date
duration = parse_duration(secondpart)
startdate = parse_date(firstpart)
#See if we need to upconvert to datetime to preserve resolution
if secondpart.find(datetimedelimiter) != -1:
return (startdate, datetime.combine(startdate, datetime.min.time()) + duration)
else:
return (startdate, startdate + duration)
else:
#<start>/<end>
if firstpart.find(datetimedelimiter) != -1 and secondpart.find(datetimedelimiter) != -1:
#Both parts are datetimes
return (parse_datetime(firstpart, delimiter=datetimedelimiter), parse_datetime(secondpart, delimiter=datetimedelimiter))
elif firstpart.find(datetimedelimiter) != -1 and secondpart.find(datetimedelimiter) == -1:
#First part is a datetime, second part is a date
return (parse_datetime(firstpart, delimiter=datetimedelimiter), parse_date(secondpart))
elif firstpart.find(datetimedelimiter) == -1 and secondpart.find(datetimedelimiter) != -1:
#First part is a date, second part is a datetime
return (parse_date(firstpart), parse_datetime(secondpart, delimiter=datetimedelimiter))
else:
#Both parts are dates
return (parse_date(firstpart), parse_date(secondpart))
def _parse_interval_end(endstr, starttuple, datetimedelimiter):
datestr = None
timestr = None
monthstr = None
daystr = None
concise = False
if type(starttuple) is DateTuple:
startdatetuple = starttuple
else:
#Start is a datetime
startdatetuple = starttuple.date
if datetimedelimiter in endstr:
datestr, timestr = endstr.split(datetimedelimiter, 1)
elif ':' in endstr:
timestr = endstr
else:
datestr = endstr
if timestr is not None:
endtimetuple = parse_time(timestr, builder=TupleBuilder)
#End is just a time
if datestr is None:
return endtimetuple
#Handle backwards concise representation
if datestr.count('-') == 1:
monthstr, daystr = datestr.split('-')
concise = True
elif len(datestr) <= 2:
daystr = datestr
concise = True
elif len(datestr) <= 4:
monthstr = datestr[0:2]
daystr = datestr[2:]
concise = True
if concise is True:
concisedatestr = startdatetuple.YYYY
#Separators required because concise elements may be missing digits
if monthstr is not None:
concisedatestr += '-' + monthstr
elif startdatetuple.MM is not None:
concisedatestr += '-' + startdatetuple.MM
concisedatestr += '-' + daystr
enddatetuple = parse_date(concisedatestr, builder=TupleBuilder)
#Clear unsupplied components
if monthstr is None:
enddatetuple = TupleBuilder.build_date(DD=enddatetuple.DD)
else:
#Year not provided
enddatetuple = TupleBuilder.build_date(MM=enddatetuple.MM,
DD=enddatetuple.DD)
else:
enddatetuple = parse_date(datestr, builder=TupleBuilder)
if timestr is None:
return enddatetuple
return TupleBuilder.build_datetime(enddatetuple, endtimetuple)
