def normalize_number_nervalue(val_string):
m = re.search(r'\d+(\.\d+)*', val_string)
if m is None:
return None
string = m.group()
val = evaluator.to_value(string)
if isinstance(val, evaluator.NumberValue):
return val.amount
else:
return None
def normalize_date_nervalue(val_string):
if re.match('\A[\d]{4}$', val_string):
string = val_string + '-XX-XX'
elif re.match('\A[\dX]{4}-[\dX]{2}$', val_string):
string = val_string + '-XX'
else:
string = val_string
val = evaluator.to_value(string)
if isinstance(val, evaluator.DateValue):
return val.normalized
else:
return None