77 lines
2.3 KiB
Python
77 lines
2.3 KiB
Python
import re
|
|
|
|
# Task 1
|
|
"""
|
|
Assume that we have sentences of the form
|
|
- Ali and Per are friends.
|
|
- Kari and Joe know each other.
|
|
- James has known Peter since school days.
|
|
|
|
The common structure here is that each sentence contains two names and that the names are the only words beginning with capital letters. Create a regular expression that
|
|
- matches these sentences (one sentence at a time)
|
|
- collects the names in groups
|
|
"""
|
|
def get_friends(text):
|
|
friends = []
|
|
for s in text:
|
|
names = re.findall(r'[A-Z]\w*', s)
|
|
if len(names) != 2:
|
|
raise ValueError('String does not contain excactly two capitalized words')
|
|
friends.append(names)
|
|
|
|
t = '{:^20}\n'.format('Venner')
|
|
t += ("-"*len(t)+"\n")
|
|
for n in friends:
|
|
t += (f'{n[0]:^10}-{n[1]:^10}\n')
|
|
return(t)
|
|
|
|
|
|
# Task 2
|
|
"""
|
|
Write a Python function validate_password that checks if a given password string is valid based on the following rules:
|
|
|
|
Starts with an uppercase letter from I to Z.
|
|
Contains at least one word character (a-z, A-Z, 0-9, or underscore).
|
|
Has exactly 4 to 5 characters in length.
|
|
Ends with a digit.
|
|
May contain spaces between the characters but cannot start or end with a space.
|
|
The password must end at the string's end.
|
|
"""
|
|
def validate_password(password):
|
|
if re.match('[I-Z]', password) == None:
|
|
return False
|
|
if re.match('[a-zA-Z0-9|_]', password) == None:
|
|
return False
|
|
if len(password) < 4 or len(password) > 5:
|
|
return False
|
|
if re.search('[0-9]$', password) == None:
|
|
return False
|
|
# Rules 5 and 6 are already fulfilled
|
|
return True
|
|
|
|
def main():
|
|
print('Test task 1:')
|
|
text = [
|
|
'Ali and Per and friends.',
|
|
'Kari and Joe know each other.',
|
|
'James has known Peter since school days.'
|
|
]
|
|
print(get_friends(text))
|
|
|
|
print('Test task 1:')
|
|
print('Valid:')
|
|
print(f'J1234: {validate_password("J1234")}')
|
|
print(f'I_ab5: {validate_password("I_ab5")}')
|
|
print(f'Z9_w4: {validate_password("Z9_w4")}')
|
|
print('\n')
|
|
print('Invalid:')
|
|
print(f'A1234: {validate_password("A1234")}')
|
|
print(f'J12345: {validate_password("J12345")}')
|
|
print(f'I__: {validate_password("I__")}')
|
|
print(f'?=?=)(=)/&__: {validate_password("?=?=)(=)/&")}')
|
|
print(f' J1234: {validate_password(" J1234")}')
|
|
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main() |