uke3 2024

uke3.py

@@ -1,52 +1,77 @@
-#!/usr/bin/env python3
-# -*- coding: utf-8 -*-
-"""
-Created on Thu Sep 28 08:23:56 2023
-
-@author: Inna Gumauri, Trygve Børte Nomeland
-"""
-
-#%% Task 1
-
 import re
 
-def student_information(filename):
+# Task 1
-    with open(filename, 'r', newline='', encoding='utf-8') as f:
+"""
-        lines = f.readlines()
+Assume that we have sentences of the form
-    stud=[]
+- Ali and Per are friends.
-    for line in lines:
+- Kari and Joe know each other.
-        if "#" in line:
+- James has known Peter since school days.
-            continue
-        d=re.findall(r"[^, :\n]+", line)
-        stud.append({"name":d[0], "age":d[1], "phone number":d[2]})
-    return stud
 
-print(student_information("data.txt"))
+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
+# Task 2
+"""
+Write a Python function validate_password that checks if a given password string is valid based on the following rules:
 
-import re
+    Starts with an uppercase letter from I to Z.
-from pathlib import Path
+    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 get_imp_file(file):
+def main():
-    with open(file, 'r', encoding='utf-8') as f:
+    print('Test task 1:')
-        txt = f.read()
+    text = [
-        # re.M gjør at ^ matcher starten av hver linje istedet for bare starten av stringen
+    'Ali and Per and friends.',
-        ptr1 = re.compile(r"^import\s(\w+)", flags=re.M)
+    'Kari and Joe know each other.',
-        ptr2 = re.compile(r"^from\s(\w+)", flags=re.M)
+    'James has known Peter since school days.'
-        imports = re.findall(ptr1, txt)
+    ]
-        imports += re.findall(ptr2, txt)
+    print(get_friends(text))
     
-        # vi filtrerer ut duplikater:
+    print('Test task 1:')
-        res = []
+    print('Valid:')
-        [res.append(x) for x in imports if x not in res]      
+    print(f'J1234: {validate_password("J1234")}')
-    return res
+    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")}')
 
-def print_imp_dir(path="./"):
-    p = Path(path)
-    files = list(p.glob('*.py'))
-    for f in files:
-        print(f'{Path.cwd()}/{f}: {get_imp_file(f)}')
 
-print_imp_dir()
+
+if __name__ == '__main__':
+    main()