def parse_date_spec(course, datespec, vctx=None, location=None):
if datespec is None:
return None
orig_datespec = datespec
def localize_if_needed(d):
if d.tzinfo is None:
from relate.utils import localize_datetime
return localize_datetime(d)
else:
return d
if isinstance(datespec, datetime.datetime):
return localize_if_needed(datespec)
if isinstance(datespec, datetime.date):
return localize_if_needed(
datetime.datetime.combine(datespec, datetime.time.min))
datespec = datespec.strip()
# {{{ parse postprocessors
postprocs = []
while True:
parsed_one = False
for pp_class in DATESPEC_POSTPROCESSORS:
datespec, postproc = pp_class.parse(datespec)
if postproc is not None:
parsed_one = True
postprocs.insert(0, postproc)
break
datespec = datespec.strip()
if not parsed_one:
break
# }}}
def apply_postprocs(dtime):
for postproc in postprocs:
dtime = postproc.apply(dtime)
return dtime
match = DATE_RE.match(datespec)
if match:
result = datetime.date(
int(match.group(1)),
int(match.group(2)),
int(match.group(3)))
result = localize_if_needed(
datetime.datetime.combine(result, datetime.time.min))
return apply_postprocs(result)
match = TRAILING_NUMERAL_RE.match(datespec)
if match:
if vctx is not None:
from course.validation import validate_identifier
validate_identifier(vctx, "%s: event kind" % location,
match.group(1))
if course is None:
return now()
from course.models import Event
try:
return apply_postprocs(
Event.objects.get(
course=course,
kind=match.group(1),
ordinal=int(match.group(2))).time)
except ObjectDoesNotExist:
if vctx is not None:
vctx.add_warning(
location,
_("unrecognized date/time specification: '%s' "
"(interpreted as 'now')")
% orig_datespec)
return now()
if vctx is not None:
from course.validation import validate_identifier
validate_identifier(vctx, "%s: event kind" % location, datespec)
if course is None:
return now()
from course.models import Event
try:
return apply_postprocs(
Event.objects.get(
course=course,
kind=datespec,
ordinal=None).time)
except ObjectDoesNotExist:
if vctx is not None:
vctx.add_warning(
location,
_("unrecognized date/time specification: '%s' "
"(interpreted as 'now')")
% orig_datespec)
return now()
def parse_date_spec(
course, # type: Optional[Course]
datespec, # type: Union[Text, datetime.date, datetime.datetime]
vctx=None, # type: Optional[ValidationContext]
location=None, # type: Optional[Text]
):
# type: (...) -> datetime.datetime
if datespec is None:
return None
orig_datespec = datespec
def localize_if_needed(d):
# type: (datetime.datetime) -> datetime.datetime
if d.tzinfo is None:
from relate.utils import localize_datetime
return localize_datetime(d)
else:
return d
if isinstance(datespec, datetime.datetime):
return localize_if_needed(datespec)
if isinstance(datespec, datetime.date):
return localize_if_needed(
datetime.datetime.combine(datespec, datetime.time.min))
try:
from typing import Text
except ImportError:
Text = None # noqa
datespec_str = cast(Text, datespec).strip() # type: ignore
# {{{ parse postprocessors
postprocs = [] # type: List[DatespecPostprocessor]
while True:
parsed_one = False
for pp_class in DATESPEC_POSTPROCESSORS:
datespec_str, postproc = pp_class.parse(datespec_str)
if postproc is not None:
parsed_one = True
postprocs.insert(0, cast(DatespecPostprocessor, postproc))
break
datespec_str = datespec_str.strip()
if not parsed_one:
break
# }}}
def apply_postprocs(dtime):
# type: (datetime.datetime) -> datetime.datetime
for postproc in postprocs:
dtime = postproc.apply(dtime)
return dtime
match = DATE_RE.match(datespec_str)
if match:
res_date = datetime.date(
int(match.group(1)),
int(match.group(2)),
int(match.group(3)))
result = localize_if_needed(
datetime.datetime.combine(res_date, datetime.time.min))
return apply_postprocs(result)
is_end = datespec_str.startswith(END_PREFIX)
if is_end:
datespec_str = datespec_str[len(END_PREFIX):]
match = TRAILING_NUMERAL_RE.match(datespec_str)
if match:
# event with numeral
event_kind = match.group(1)
ordinal = int(match.group(2)) # type: Optional[int]
else:
# event without numeral
event_kind = datespec_str
ordinal = None
if vctx is not None:
from course.validation import validate_identifier
validate_identifier(vctx, "%s: event kind" % location, event_kind)
if course is None:
return now()
from course.models import Event
try:
event_obj = Event.objects.get(
course=course,
kind=event_kind,
ordinal=ordinal)
except ObjectDoesNotExist:
if vctx is not None:
vctx.add_warning(
location,
_("unrecognized date/time specification: '%s' "
"(interpreted as 'now')")
% orig_datespec)
return now()
if is_end:
if event_obj.end_time is not None:
result = event_obj.end_time
else:
result = event_obj.time
if vctx is not None:
vctx.add_warning(
location,
_("event '%s' has no end time, using start time instead")
% orig_datespec)
else:
result = event_obj.time
return apply_postprocs(result)
def parse_date_spec(course, datespec, vctx=None, location=None):
if datespec is None:
return None
orig_datespec = datespec
def localize_if_needed(d):
if d.tzinfo is None:
from relate.utils import localize_datetime
return localize_datetime(d)
else:
return d
if isinstance(datespec, datetime.datetime):
return localize_if_needed(datespec)
if isinstance(datespec, datetime.date):
return localize_if_needed(
datetime.datetime.combine(datespec, datetime.time.min))
datespec = datespec.strip()
# {{{ parse postprocessors
postprocs = []
while True:
parsed_one = False
for pp_class in DATESPEC_POSTPROCESSORS:
datespec, postproc = pp_class.parse(datespec)
if postproc is not None:
parsed_one = True
postprocs.insert(0, postproc)
break
datespec = datespec.strip()
if not parsed_one:
break
# }}}
def apply_postprocs(dtime):
for postproc in postprocs:
dtime = postproc.apply(dtime)
return dtime
match = DATE_RE.match(datespec)
if match:
result = datetime.date(int(match.group(1)), int(match.group(2)),
int(match.group(3)))
result = localize_if_needed(
datetime.datetime.combine(result, datetime.time.min))
return apply_postprocs(result)
match = TRAILING_NUMERAL_RE.match(datespec)
if match:
if vctx is not None:
from course.validation import validate_identifier
validate_identifier(vctx, "%s: event kind" % location,
match.group(1))
if course is None:
return now()
from course.models import Event
try:
return apply_postprocs(
Event.objects.get(course=course,
kind=match.group(1),
ordinal=int(match.group(2))).time)
except ObjectDoesNotExist:
if vctx is not None:
vctx.add_warning(
location,
_("unrecognized date/time specification: '%s' "
"(interpreted as 'now')") % orig_datespec)
return now()
if vctx is not None:
from course.validation import validate_identifier
validate_identifier(vctx, "%s: event kind" % location, datespec)
if course is None:
return now()
from course.models import Event
try:
return apply_postprocs(
Event.objects.get(course=course, kind=datespec, ordinal=None).time)
except ObjectDoesNotExist:
if vctx is not None:
vctx.add_warning(
location,
_("unrecognized date/time specification: '%s' "
"(interpreted as 'now')") % orig_datespec)
return now()
def parse_date_spec(
course, # type: Optional[Course]
datespec, # type: Union[Text, datetime.date, datetime.datetime]
vctx=None, # type: Optional[ValidationContext]
location=None, # type: Optional[Text]
):
# type: (...) -> datetime.datetime
if datespec is None:
return None
orig_datespec = datespec
def localize_if_needed(d):
# type: (datetime.datetime) -> datetime.datetime
if d.tzinfo is None:
from relate.utils import localize_datetime
return localize_datetime(d)
else:
return d
if isinstance(datespec, datetime.datetime):
return localize_if_needed(datespec)
if isinstance(datespec, datetime.date):
return localize_if_needed(
datetime.datetime.combine(datespec, datetime.time.min))
try:
from typing import Text
except ImportError:
Text = None # noqa
datespec_str = cast(Text, datespec).strip() # type: ignore
# {{{ parse postprocessors
postprocs = [] # type: List[DatespecPostprocessor]
while True:
parsed_one = False
for pp_class in DATESPEC_POSTPROCESSORS:
datespec_str, postproc = pp_class.parse(datespec_str)
if postproc is not None:
parsed_one = True
postprocs.insert(0, cast(DatespecPostprocessor, postproc))
break
datespec_str = datespec_str.strip()
if not parsed_one:
break
# }}}
def apply_postprocs(dtime):
# type: (datetime.datetime) -> datetime.datetime
for postproc in postprocs:
dtime = postproc.apply(dtime)
return dtime
match = DATE_RE.match(datespec_str)
if match:
res_date = datetime.date(int(match.group(1)), int(match.group(2)),
int(match.group(3)))
result = localize_if_needed(
datetime.datetime.combine(res_date, datetime.time.min))
return apply_postprocs(result)
is_end = datespec_str.startswith(END_PREFIX)
if is_end:
datespec_str = datespec_str[len(END_PREFIX):]
match = TRAILING_NUMERAL_RE.match(datespec_str)
if match:
# event with numeral
event_kind = match.group(1)
ordinal = int(match.group(2)) # type: Optional[int]
else:
# event without numeral
event_kind = datespec_str
ordinal = None
if vctx is not None:
from course.validation import validate_identifier
validate_identifier(vctx, "%s: event kind" % location, event_kind)
if course is None:
return now()
from course.models import Event
try:
event_obj = Event.objects.get(course=course,
kind=event_kind,
ordinal=ordinal)
except ObjectDoesNotExist:
if vctx is not None:
vctx.add_warning(
location,
_("unrecognized date/time specification: '%s' "
"(interpreted as 'now')") % orig_datespec)
return now()
if is_end:
if event_obj.end_time is not None:
result = event_obj.end_time
else:
result = event_obj.time
if vctx is not None:
vctx.add_warning(
location,
_("event '%s' has no end time, using start time instead") %
orig_datespec)
else:
result = event_obj.time
return apply_postprocs(result)