def test_check_calculation(self):
valid = ["23", "2.123", "cos(12.2)", "tan(sin(atan(cosh(1))))", "pie", "1+2*3/4^5%6", "gamma(17)"]
invalid = ["hello", "1&2", "$13.50", "1::", "cos(tan(12+t+15))"]
for valid_str in valid:
assert Commons.check_calculation(valid_str), "Valid string judged to be not calculation, "+valid_str
for invalid_str in invalid:
assert not Commons.check_calculation(invalid_str), "Invalid string judged to be calculation, "+invalid_str
def run(self, line, user_obj, destination_obj=None):
line_clean = line.strip().lower()
if line_clean.isdigit():
number = int(line_clean)
elif Commons.check_calculation(line_clean):
function_dispatcher = user_obj.server.hallo.function_dispatcher
calc_func = function_dispatcher.get_function_by_name("calc")
calc_obj = function_dispatcher.get_function_object(calc_func) # type: Calculate
number_str = calc_obj.process_calculation(line_clean)
if "." in number_str:
return "Error, this calculation does not result in an integer. The answer is: " + number_str
number = int(number_str)
else:
return "Error, this is not a valid number or calculation."
prime_factors = self.find_prime_factors(number)
return "The prime factors of " + str(number) + " are: " + 'x'.join(str(x) for x in prime_factors) + "."
def preflight_checks(self, calc):
# strip spaces
calc_clean = calc.replace(' ', '').lower()
# make sure only legit characters are allowed
if not Commons.check_calculation(calc_clean):
# TODO use custom exception
raise Exception('Error, Invalid characters in expression')
# make sure open brackets don't out-number close
if calc.count('(') > calc.count(')'):
raise Exception('Error, too many open brackets')
# Make sure close brackets don't out-number open.
# Previously I thought it would be okay to skip this, but "(21/3))+2))*5" evaluates as 17, rather than 45
if calc.count(')') > calc.count('('):
raise Exception('Error, too many close brackets')
if len(calc) == 0:
raise Exception("Error, empty calculation or brackets")
return True
def passive_run(self, event, full_line, hallo_obj, server_obj=None, user_obj=None, channel_obj=None):
"""Replies to an event not directly addressed to the bot."""
# Check if fullLine is a calculation, and is not just numbers, and contains numbers.
if not Commons.check_calculation(full_line):
return None
if Commons.check_numbers(full_line.replace(".", "")):
return None
if not any([char in full_line for char in [str(x) for x in range(10)] + ["e", "pi"]]):
return None
# Clean up the line and feed to the calculator.
calc = full_line.replace(' ', '').lower()
try:
self.preflight_checks(calc)
answer = self.process_calculation(calc)
return answer
except Exception as e:
print("Passive calc failed: "+str(e))
return None
def run(self, line, user_obj, destination_obj=None):
if line.count(' ') == 0:
number = line
lang = "american"
elif line.split()[1].lower() in ["british", "english"]:
number = line.split()[0]
lang = "english"
elif line.split()[1].lower() in ["european", "french"]:
number = line.split()[0]
lang = "european"
else:
number = line.split()[0]
lang = "american"
if Commons.check_numbers(number):
number = number
elif Commons.check_calculation(number):
function_dispatcher = user_obj.server.hallo.function_dispatcher
calc_func = function_dispatcher.get_function_by_name("calc")
calc_obj = function_dispatcher.get_function_object(calc_func) # type: Calculate
number = calc_obj.process_calculation(number)
else:
return "Error, you must enter a valid number or calculation."
return self.number_word(number, lang) + "."