in reinvent-2019/smart-garden/lambdasGreengrass-Edge/lambdas/WaterPumpControl/vendored/dateutil/rrule.py [0:0]
def _parse_rfc(self, s,
dtstart=None,
cache=False,
unfold=False,
forceset=False,
compatible=False,
ignoretz=False,
tzids=None,
tzinfos=None):
global parser
if compatible:
forceset = True
unfold = True
TZID_NAMES = dict(map(
lambda x: (x.upper(), x),
re.findall('TZID=(?P<name>[^:]+):', s)
))
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 EXDATE parm: "+parm)
exdatevals.append(value)
elif name == "DTSTART":
# RFC 5445 3.8.2.4: The VALUE parameter is optional, but
# may be found only once.
value_found = False
TZID = None
valid_values = {"VALUE=DATE-TIME", "VALUE=DATE"}
for parm in parms:
if parm.startswith("TZID="):
try:
tzkey = TZID_NAMES[parm.split('TZID=')[-1]]
except KeyError:
continue
if tzids is None:
from . import tz
tzlookup = tz.gettz
elif callable(tzids):
tzlookup = tzids
else:
tzlookup = getattr(tzids, 'get', None)
if tzlookup is None:
msg = ('tzids must be a callable, ' +
'mapping, or None, ' +
'not %s' % tzids)
raise ValueError(msg)
TZID = tzlookup(tzkey)
continue
if parm not in valid_values:
raise ValueError("unsupported DTSTART parm: "+parm)
else:
if value_found:
msg = ("Duplicate value parameter found in " +
"DTSTART: " + parm)
raise ValueError(msg)
value_found = True
if not parser:
from dateutil import parser
dtstart = parser.parse(value, ignoretz=ignoretz,
tzinfos=tzinfos)
if TZID is not None:
if dtstart.tzinfo is None:
dtstart = dtstart.replace(tzinfo=TZID)
else:
raise ValueError('DTSTART specifies multiple timezones')
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
rset = rruleset(cache=cache)
for value in rrulevals:
rset.rrule(self._parse_rfc_rrule(value, dtstart=dtstart,
ignoretz=ignoretz,
tzinfos=tzinfos))
for value in rdatevals:
for datestr in value.split(','):
rset.rdate(parser.parse(datestr,
ignoretz=ignoretz,
tzinfos=tzinfos))
for value in exrulevals:
rset.exrule(self._parse_rfc_rrule(value, dtstart=dtstart,
ignoretz=ignoretz,
tzinfos=tzinfos))
for value in exdatevals:
for datestr in value.split(','):
rset.exdate(parser.parse(datestr,
ignoretz=ignoretz,
tzinfos=tzinfos))
if compatible and dtstart:
rset.rdate(dtstart)
return rset
else:
return self._parse_rfc_rrule(rrulevals[0],
dtstart=dtstart,
cache=cache,
ignoretz=ignoretz,
tzinfos=tzinfos)