ch06

ch06/oop/static.methods.py

@@ -0,0 +1,40 @@
+# oop/static.methods.py
+class StringUtil:
+
+    @staticmethod
+    def is_palindrome(s, case_insensitive=True):
+        # we allow only letters and numbers
+        s = ''.join(c for c in s if c.isalnum())  # Study this!
+        # For case insensitive comparison, we lower-case s
+        if case_insensitive:
+            s = s.lower()
+        for c in range(len(s) // 2):
+            if s[c] != s[-c -1]:
+                return False
+        return True
+
+    @staticmethod
+    def get_unique_words(sentence):
+        return set(sentence.split())
+
+print(StringUtil.is_palindrome(
+    'Radar', case_insensitive=False))  # False: Case Sensitive
+print(StringUtil.is_palindrome('A nut for a jar of tuna'))  # True
+print(StringUtil.is_palindrome('Never Odd, Or Even!'))  # True
+print(StringUtil.is_palindrome(
+    'In Girum Imus Nocte Et Consumimur Igni')  # Latin! Show-off!
+)  # True
+
+print(StringUtil.get_unique_words(
+    'I love palindromes. I really really love them!'))
+# {'them!', 'palindromes.', 'I', 'really', 'love'}
+
+
+"""
+$ python static.methods.py
+False
+True
+True
+True
+{'them!', 'palindromes.', 'I', 'really', 'love'}
+"""