def parse_date(self, test_string):
test_string = DataUtils.remove_excess_spaces(test_string)
# First, try to parse the date according the the specified format
parsed_date = self.parse_date_string(test_string)
if parsed_date != None:
return parsed_date, parsed_date
try:
# If that fails, try to parse the date as a date range string
return daterangeparser.parse(test_string)
except pyparsing.ParseException:
# If that fails, it may be a date range in a format that daterangeparser doesn't recognize
# Check if the string contains two formatted dates by checking the beginning and end substrings
# until it finds two strings formatted like dates
test_start = len(test_string) - 1
test_end = 0
start = None
end = None
while test_end < len(test_string):
if start == None:
start = self.parse_date_string(test_string[0:test_end])
if end == None:
end = self.parse_date_string(
test_string[test_start:len(test_string)])
if start != None and end != None:
break
test_start -= 1
test_end += 1
if start == None or end == None:
raise ValueError('Could not parse date string: ' + test_string)
return start, end
def parse_date(self, test_string):
test_string = DataUtils.remove_excess_spaces(test_string)
# First, try to parse the date according the the specified format
parsed_date = self.parse_date_string(test_string)
if parsed_date != None:
return parsed_date, parsed_date
# If that fails, try to parse the date with fuzzy matching (needed for weird formats or date ranges)
human_parsed = timefhuman(test_string)
if len(human_parsed) == 1:
return human_parsed, human_parsed
elif len(human_parsed) == 2:
return human_parsed
# If that fails, it may be a date range in a format that daterangeparser doesn't recognize
# Check if the string contains two formatted dates by checking the beginning and end substrings
# until it finds two strings formatted like dates
test_start = len(test_string) - 1
test_end = 0
start = None
end = None
while test_end < len(test_string):
if start == None:
start = self.parse_date_string(test_string[0:test_end])
if end == None:
end = self.parse_date_string(
test_string[test_start:len(test_string)])
if start != None and end != None:
break
test_start -= 1
test_end += 1
if start == None or end == None:
raise ValueError('Could not parse date string: ' + test_string)
return start, end